/*
Theme Name: Protocol Finder
Theme URI: https://protocols.nwforums.com
Author: Protocol Medical Team
Author URI: https://protocols.nwforums.com
Description: Fast, task-oriented protocol finder optimized for clinical speed. Find your protocol in 3 clicks or less.
Version: 2.3
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: protocol-finder
Tags: medical, protocols, clinical, fast-access
*/

/* ===================================
   RESET & BASE STYLES
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --primary-blue: #0066cc;
    --primary-dark: #004499;
    --accent-teal: #00a8cc;
    --success-green: #28a745;
    --warning-orange: #ff8c00;
    --danger-red: #dc3545;

    /* Category Colors */
    --brain-color: #9b59b6;
    --spine-color: #3498db;
    --body-color: #e74c3c;
    --mra-color: #e67e22;

    /* Neutrals — unified warm gray system (C1-5) */
    --gray-warm-50: #fafaf8;     /* Dim-room optimized off-white */
    --gray-warm-100: #f0f0ec;    /* Subtle warm tint for alternating rows */
    --data-cell-bg: #fcfcfa;     /* Warm white for data legibility */
    --gray-50: #fafaf8;          /* Unified with warm palette */
    --gray-100: #e9ecef;
    --gray-200: #dee2e6;
    --gray-300: #ced4da;
    --gray-400: #adb5bd;
    --gray-500: #6c757d;
    --gray-600: #495057;
    --gray-700: #343a40;
    --gray-800: #212529;
    --gray-900: #000000;

    /* Table header color token (C1-3) */
    --table-header-bg: #3d6a8f;

    /* Field strength badge colors (C1-2) */
    --field-15t-bg: #4a6785;
    --field-15t-text: #ffffff;
    --field-30t-bg: #c07000;
    --field-30t-text: #ffffff;

    /* Typography Scale — 7-size modular scale (R2-1) */
    --text-xs: 0.75rem;      /* 12px — labels, badges */
    --text-sm: 0.875rem;     /* 14px — table data, captions */
    --text-base: 1rem;       /* 16px — body text */
    --text-lg: 1.25rem;      /* 20px — group headers */
    --text-xl: 1.5rem;       /* 24px — section headers */
    --text-2xl: 2rem;        /* 32px — page titles */
    --text-3xl: 2.5rem;      /* 40px — hero titles */

    /* Font Weights — heading hierarchy (R2-2) */
    --weight-normal: 400;
    --weight-medium: 500;
    --weight-semibold: 600;
    --weight-bold: 700;
    --weight-extrabold: 800;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-xxl: 3rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Monaco', 'Courier New', monospace;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.15), 0 10px 10px rgba(0,0,0,0.04);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;

    /* Wave divider fill (matches body background) */
    --wave-body-fill: #fafaf8;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-50);
    background-image: radial-gradient(circle, #d5d5d0 0.5px, transparent 0.5px);
    background-size: 24px 24px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}


a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* Skip Navigation Link (WCAG 2.1 AA) */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-blue);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 0 0 8px 8px;
    z-index: 10000;
    font-weight: 600;
    text-decoration: none;
    transition: top 0.2s ease;
}
.skip-link:focus {
    top: 0;
}

/* ===================================
   SCANNER SELECTOR BAR (Clean Ribbon)
   =================================== */
.scanner-selector-bar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: white;
    color: var(--gray-800);
    padding: 10px 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border-bottom: 3px solid var(--primary-blue);
    transition: transform 0.3s ease-in-out;
}

.scanner-selector-bar.header-hidden {
    transform: translateY(-100%);
}

.header-toggle-btn {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%) translateY(-100%);
    background: var(--primary-blue);
    color: white;
    width: 40px;
    height: 30px;
    border-bottom-left-radius: 10px;
    border-bottom-right-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1001;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    transition: transform 0.3s ease-in-out;
}

.header-toggle-btn.visible {
    transform: translateX(-50%) translateY(0);
}

button.header-toggle-btn {
    font-family: inherit;
    border: none;
    padding: 0;
    appearance: none;
    -webkit-appearance: none;
}

.header-toggle-btn span {
    font-size: 12px;
}

.scanner-selector-container {
    max-width: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    position: relative;
}

/* 1. Branding */
.site-branding {
    flex-shrink: 0;
}

/* Static site logo (the animated coin-spin was removed per request 2026-06-15).
   Both logo PNGs share a ~2.29:1 aspect ratio, so one box fits both themes. */
.site-logo-link {
    display: block;
}

.site-logo-spin {
    position: relative;
    display: block;
    height: 50px;
    aspect-ratio: 917 / 400;
}

.nwif-face {
    position: absolute;
    inset: 0;
    background: url("images/Logo_for_Site.png") center / contain no-repeat;
}

/* Second face is a leftover of the old coin-flip markup; keep it hidden. */
.nwif-back {
    display: none;
}

[data-theme="dark"] .nwif-face {
    background-image: url("images/White_NWIF_LOGO400.png");
}

/* 2. Search — always visible on desktop (C3-4) */
.search-container {
    position: relative;
    display: flex;
    align-items: center;
    transition: width 0.3s ease;
}

/* Desktop: always-visible search input */
@media (min-width: 769px) {
    .search-container,
    .search-container.collapsed {
        width: 360px;
        max-width: 360px;
    }

    .search-container .search-toggle-btn {
        display: none;
    }

    .search-container .search-input {
        width: 100% !important;
        opacity: 1 !important;
        padding: 10px 16px 10px 14px !important;
        border: 2px solid var(--gray-200) !important;
        background: var(--gray-50) !important;
        border-radius: 6px;
        font-size: var(--text-base);
    }

    .search-container .search-input:focus {
        border-color: var(--primary-blue) !important;
        background: white !important;
        box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
        outline: none;
    }

    .search-container .search-close-btn {
        display: none !important;
    }
}

/* Mobile: keep collapsible behavior */
@media (max-width: 768px) {
    .search-container.collapsed {
        width: auto;
    }

    .search-container.expanded {
        position: relative;
        max-width: 350px;
        width: 350px;
        z-index: 10;
    }
}

.search-container.collapsed {
    width: auto;
}

.search-container.expanded {
    position: relative;
    max-width: 350px;
    width: 350px;
    z-index: 10;
}

.search-toggle-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 2px solid var(--gray-200);
    background: var(--gray-50);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.search-toggle-btn:hover {
    background: white;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.search-toggle-btn .search-icon {
    position: static;
    transform: none;
    pointer-events: none;
    color: var(--gray-600);
    font-size: 1.1rem;
}

.search-input {
    width: 0;
    padding: 0;
    border: none;
    opacity: 0;
    font-size: 0.95rem;
    color: var(--gray-800);
    background: var(--gray-50);
    border-radius: 20px;
    transition: width 0.3s ease, opacity 0.2s ease, padding 0.3s ease;
}

.search-close-btn {
    display: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    background: var(--gray-200);
    color: var(--gray-600);
    font-size: 1.3rem;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.search-close-btn:hover {
    background: var(--gray-300);
    color: var(--gray-800);
}

/* Search — collapsed state */
.search-container.collapsed .search-input {
    width: 0;
    padding: 0;
    border: none;
    opacity: 0;
}

.search-container.collapsed .search-close-btn {
    display: none;
}

/* Search — expanded state */
.search-container.expanded .search-toggle-btn {
    display: none;
}

.search-container.expanded .search-input {
    width: 100%;
    opacity: 1;
    padding: 10px 16px 10px 14px;
    border: 2px solid var(--primary-blue);
    background: white;
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.search-container.expanded .search-input:focus {
    outline: none;
}

.search-container.expanded .search-close-btn {
    display: flex;
    margin-left: 8px;
}

/* 3. Filter Toolbar (below header) */
.filter-toolbar {
    /* Left-inset that mirrors .site-content: floors to 2rem on normal
       screens, tracks the centered 1600px container on wide screens so the
       filters line up with the breadcrumb/main content left edge. */
    --pf-toolbar-inset: max(2rem, calc((100% - 1600px) / 2 + 2rem));
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0.5rem;
    width: 100%;
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    padding: 12px 2rem 12px var(--pf-toolbar-inset);
    transition: padding 0.2s ease, max-height 0.3s ease;
    overflow: hidden;
    position: relative;
}

/* Collapsed filter toolbar (C4-4) */
.filter-toolbar.collapsed {
    padding: 8px 2rem 8px var(--pf-toolbar-inset);
    max-height: 48px;
    flex-direction: row;
    align-items: center;
}

.filter-toolbar.collapsed .scanner-controls {
    display: none;
}

.filter-toolbar-summary {
    display: none;
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--gray-600);
    margin-left: 8px;
}

.filter-toolbar.collapsed .filter-toolbar-summary {
    display: inline;
}

.filter-collapse-btn {
    background: none;
    border: 1px solid var(--gray-300);
    border-radius: 4px;
    color: var(--gray-500);
    font-size: var(--text-xs);
    padding: 2px 8px;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: absolute;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    white-space: nowrap;
}

.filter-collapse-btn:hover {
    background: var(--gray-100);
    color: var(--gray-700);
}

.filter-toolbar-heading {
    font-size: var(--text-sm);
    font-weight: var(--weight-extrabold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary-blue);
    writing-mode: horizontal-tb;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 6px;
}

.scanner-controls {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.manufacturer-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Manufacturer Pill Buttons */
.scanner-btn.manufacturer-btn {
    background: white;
    border: 1px solid var(--gray-200);
    padding: 10px 20px;
    border-radius: 24px;
    cursor: pointer;
    width: auto;
    height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: row;
    gap: 7px;
    transition: all var(--transition-fast);
    min-height: auto;
}

.scanner-btn.manufacturer-btn:hover {
    background: var(--gray-100);
    border-color: var(--gray-300);
    transform: translateY(-1px);
}

.scanner-btn.manufacturer-btn.active {
    border-color: var(--primary-blue);
    background: white;
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.35);
}

.manufacturer-logo {
    height: 32px;
    width: auto;
    object-fit: contain;
}

/* Philips SVG has extra whitespace in its viewBox — scale up to match GE/Siemens visually */
.manufacturer-btn[data-manufacturer="philips"] .manufacturer-logo {
    transform: scale(1.55);
    display: block;
    margin: 0;
    padding: 0;
}

.btn-text {
    display: none;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--gray-700);
    white-space: nowrap;
}

.scanner-btn.manufacturer-btn.active .btn-text {
    color: var(--primary-blue);
}

/* "All" Text Button */
.scanner-btn.manufacturer-btn[data-manufacturer="all"] {
    padding: 10px 20px;
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--gray-600);
}

.scanner-btn.manufacturer-btn[data-manufacturer="all"].active {
    background: white;
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

/* Separator */
.filter-separator {
    width: 1px;
    height: 50px;
    background: var(--gray-300);
}

/* Field Strength Pill */
.field-strength-toggle {
    display: flex;
    gap: 8px;
    background: var(--gray-100);
    padding: 3px;
    border-radius: 20px;
    border: 1px solid var(--gray-200);
}

.field-strength-btn {
    background: white;
    border: 1px solid var(--gray-200);
    color: var(--gray-600);
    padding: 12px 24px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: 600;
    transition: all var(--transition-fast);
    min-height: auto;
}

.field-strength-btn:hover {
    color: var(--primary-blue);
}

.field-strength-btn.active {
    background: white;
    color: var(--primary-blue);
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.35);
}

/* Filter Labels */
.filter-label {
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gray-600);
    white-space: nowrap;
}

/* Mobile Layout Adjustments */
@media (max-width: 768px) {
    .scanner-selector-bar {
        padding: 8px 0;
    }

    .scanner-selector-container {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        padding: 0 0.75rem;
        gap: 6px;
    }

    .site-branding {
        text-align: center;
        padding-bottom: 3px;
    }

    /* Smaller logo on mobile */
    .site-logo-spin {
        height: 38px;
    }

    .search-container.expanded {
        position: absolute;
        right: 0.75rem;
        left: auto;
        width: 280px;
        max-width: calc(100vw - 120px);
    }

    /* Filter toolbar below header on mobile */
    .filter-toolbar {
        flex-direction: column;
        gap: 0.5rem;
        padding: 8px 10px;
        align-items: center;
    }

    .filter-toolbar-heading {
        writing-mode: horizontal-tb;
        border-left: none;
        border-bottom: 2px solid var(--primary-blue);
        padding-left: 0;
        padding-bottom: 4px;
        text-align: center;
    }

    .scanner-controls {
        width: 100%;
        overflow-x: visible;
        padding-bottom: 0;
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }

    .scanner-controls::-webkit-scrollbar {
        display: none;
    }

    .filter-group {
        align-items: center;
        width: 100%;
    }

    .filter-separator {
        width: 80%;
        height: 1px;
    }

    .manufacturer-group {
        flex-shrink: 0;
        flex-wrap: wrap;
        justify-content: center;
        width: 100%;
        gap: 6px;
    }

    .field-strength-toggle {
        flex-shrink: 0;
    }

    /* Manufacturer pill buttons on mobile */
    .scanner-btn.manufacturer-btn {
        width: auto;
        height: auto;
        padding: 4px 10px;
        border-radius: 20px;
    }

    .field-strength-btn {
        min-height: 40px;
        padding: 6px 14px;
    }
    
    .search-container.expanded .search-input {
        min-height: 44px;
    }

    /* Larger header toggle button on mobile for easier tapping */
    .header-toggle-btn {
        width: 50px;
        height: 35px;
    }
    
    .header-toggle-btn span {
        font-size: 14px;
    }
}

/* ===================================
   MAIN CONTENT AREA
   =================================== */
.site-content {
    max-width: 100%;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-xl);
}

/* ===================================
   CATEGORY CARDS (Main Navigation)
   =================================== */
.category-grid-container {
    background: linear-gradient(135deg,
        rgba(0, 102, 204, 0.03) 0%,
        rgba(0, 168, 204, 0.02) 50%,
        rgba(250, 250, 248, 0) 100%);
    border-radius: 16px 16px 0 0;
    padding: var(--space-xxl) var(--space-xl);
    padding-bottom: calc(var(--space-xl) + 50px);
    margin-bottom: var(--space-xl);
    position: relative;
}

.category-grid-container::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 60' preserveAspectRatio='none'%3E%3Cpath d='M0,30 C240,50 480,10 720,25 C960,40 1200,15 1440,35 L1440,60 L0,60 Z' fill='%23fafaf8'/%3E%3Cpath d='M0,30 C240,50 480,10 720,25 C960,40 1200,15 1440,35' fill='none' stroke='%230066cc' stroke-width='1.5' stroke-opacity='0.18'/%3E%3C/svg%3E");
    background-size: 100% 100%;
    background-repeat: no-repeat;
    pointer-events: none;
    filter: drop-shadow(0 -2px 4px rgba(0,102,204,0.06));
}

[data-theme="dark"] .category-grid-container::after {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 60' preserveAspectRatio='none'%3E%3Cpath d='M0,30 C240,50 480,10 720,25 C960,40 1200,15 1440,35 L1440,60 L0,60 Z' fill='%23121214'/%3E%3Cpath d='M0,30 C240,50 480,10 720,25 C960,40 1200,15 1440,35' fill='none' stroke='%234d9fff' stroke-width='1.5' stroke-opacity='0.25'/%3E%3C/svg%3E");
    filter: drop-shadow(0 -2px 4px rgba(77,159,255,0.1));
}

.category-grid {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
    max-width: 1300px;
    margin-left: auto;
    margin-right: auto;
}

.category-card {
    background: white;
    border-radius: 16px;
    padding: var(--space-xl) var(--space-lg);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06), 0 0 0 1px rgba(0,0,0,0.03);
    border: none;
    position: relative;
    overflow: hidden;
    flex: 0 1 280px;
    min-width: 240px;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--category-color), color-mix(in srgb, var(--category-color), white 30%));
    opacity: 0.6;
    transition: opacity var(--transition-base), height var(--transition-base);
}

.category-card:hover::before {
    height: 5px;
    opacity: 1;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow:
        0 12px 24px rgba(0,0,0,0.08),
        0 4px 8px rgba(0,0,0,0.04),
        0 0 0 1px var(--category-color);
}

.category-card.cns { --category-color: var(--brain-color); }
.category-card.body { --category-color: var(--body-color); }
.category-card.mra { --category-color: var(--mra-color); }
.category-card.breast { --category-color: #2e7d6f; }
.category-card.pediatric { --category-color: #2b8cc4; }

.category-icon {
    width: 120px;
    height: 120px;
    object-fit: contain;
    padding: 12px;
    border-radius: 50%;
    background: linear-gradient(135deg,
        color-mix(in srgb, var(--category-color), white 92%),
        color-mix(in srgb, var(--category-color), white 96%));
    margin-bottom: var(--space-md);
    filter: none;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.category-card:hover .category-icon {
    transform: scale(1.05);
    box-shadow: 0 4px 16px color-mix(in srgb, var(--category-color), transparent 70%);
}

.category-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: var(--space-xs);
}

.category-count {
    font-size: 0.95rem;
    color: var(--gray-500);
    font-weight: 500;
}

.category-badge {
    display: inline-block;
    margin-top: var(--space-sm);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    background: linear-gradient(135deg, var(--category-color), color-mix(in srgb, var(--category-color), black 15%));
    color: white;
    text-transform: uppercase;
}

/* ===================================
   PROTOCOL LISTING VIEW
   =================================== */
.protocol-view-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
    gap: var(--space-md);
}

.back-button {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: var(--gray-100);
    color: var(--gray-700);
    border-radius: 8px;
    font-weight: 600;
    transition: all var(--transition-base);
}

.back-button:hover {
    background: var(--gray-200);
    transform: translateX(-4px);
}

.view-title {
    font-size: var(--text-2xl);
    font-weight: var(--weight-extrabold);
    letter-spacing: -0.02em;
    color: var(--gray-800);
    margin: 0;
}

.protocol-groups {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--space-xl);
}

.protocol-group {
    background: white;
    border-radius: 8px;
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
}

.group-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 3px solid var(--gray-200);
}

.protocol-list {
    list-style: none;
}

.protocol-item {
    padding: 1rem 1.25rem;
    margin-bottom: 0.75rem;
    background: white;
    border-radius: 10px;
    border-left: 4px solid var(--gray-200);
    transition: all var(--transition-fast);
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
}

.protocol-item:hover {
    background: white;
    border-left: 4px solid var(--primary-blue);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transform: translateX(4px);
}

.protocol-left {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    min-width: 0;
}

.protocol-name {
    font-weight: 600;
    color: var(--gray-800);
}

.protocol-field {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 700;
    background: var(--gray-200);
    color: var(--gray-700);
}

.protocol-field.field-1-5t {
    background: var(--field-15t-bg);
    color: var(--field-15t-text);
}

.protocol-field.field-3-0t {
    background: var(--field-30t-bg);
    color: var(--field-30t-text);
}

/* Vendor Badges */
.protocol-vendor {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: var(--text-xs);
    font-weight: var(--weight-bold);
    letter-spacing: 0.03em;
    flex-shrink: 0;
    text-transform: uppercase;
}

.protocol-vendor.vendor-all     { background: var(--gray-100); color: var(--gray-600); }
.protocol-vendor.vendor-ge      { background: #f0e6fa; color: #640ACD; }
.protocol-vendor.vendor-philips { background: #e1edfa; color: #0B5ED7; }
.protocol-vendor.vendor-siemens { background: #fdf0e3; color: #EC6602; }

/* Hidden by filter */
.protocol-item.hidden,
.protocol-group.hidden,
.category-card.hidden {
    display: none !important;
}

/* ===================================
   SUB-CATEGORY VIEW
   =================================== */
.subcategory-view-container {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.subcategory-view-container.active {
    display: block;
}

.subcategory-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 2px solid var(--gray-200);
}

.subcategory-title {
    font-size: var(--text-2xl);
    font-weight: var(--weight-extrabold);
    letter-spacing: -0.02em;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.subcategory-title-icon {
    font-size: 2.5rem;
}

.subcategory-back-button {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: var(--gray-100);
    color: var(--gray-700);
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
}

.subcategory-back-button:hover {
    background: var(--gray-200);
    color: var(--gray-900);
    transform: translateX(-3px);
}

.subcategory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xxl);
}

.subcategory-card {
    background: white;
    border-radius: 16px;
    padding: var(--space-lg);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06), 0 0 0 1px rgba(0,0,0,0.03);
    position: relative;
    overflow: hidden;
}

.subcategory-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    opacity: 0.6;
    transition: opacity var(--transition-base), height var(--transition-base);
}

.subcategory-card:hover::before {
    height: 5px;
    opacity: 1;
}

.subcategory-card:hover {
    transform: translateY(-4px);
    box-shadow:
        0 12px 24px rgba(0,0,0,0.08),
        0 4px 8px rgba(0,0,0,0.04),
        0 0 0 1px var(--primary-color);
}

.subcategory-icon {
    width: 100px;
    height: 100px;
    object-fit: contain;
    padding: 10px;
    border-radius: 50%;
    background: linear-gradient(135deg,
        color-mix(in srgb, var(--primary-color, var(--primary-blue)), white 92%),
        color-mix(in srgb, var(--primary-color, var(--primary-blue)), white 96%));
    margin-bottom: var(--space-md);
    filter: none;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.subcategory-card:hover .subcategory-icon {
    transform: scale(1.05);
    box-shadow: 0 4px 16px color-mix(in srgb, var(--primary-color, var(--primary-blue)), transparent 70%);
}

.subcategory-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: var(--space-sm);
}

.subcategory-count {
    font-size: 0.9rem;
    color: var(--gray-500);
    font-weight: 500;
}

.subcategory-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    margin-top: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===================================
   SINGLE PROTOCOL PAGE
   =================================== */
.protocol-single {
    background: white;
    border-radius: 16px;
    padding: var(--space-xxl);
    box-shadow: 0 4px 16px rgba(0,0,0,0.06), 0 1px 4px rgba(0,0,0,0.04);
    max-width: 1200px;
    margin: 0 auto;
}

.protocol-header {
    margin-bottom: var(--space-xxl);
    padding-bottom: var(--space-xl);
    border-bottom: 3px solid var(--gray-200);
}

.protocol-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--space-md);
}

.protocol-meta {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.meta-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    background: var(--gray-100);
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-700);
}

.protocol-content {
    font-size: 1.05rem;
    line-height: 1.8;
}

.protocol-content h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-top: var(--space-xl);
    margin-bottom: var(--space-lg);
}

.protocol-content h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-top: var(--space-lg);
    margin-bottom: var(--space-md);
}

.protocol-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-lg) 0;
    box-shadow: var(--shadow-sm);
    border-radius: 8px;
    overflow: hidden;
}

.protocol-content thead {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-blue));
}

.protocol-content th {
    padding: var(--space-sm) var(--space-md) !important;
    text-align: left;
    font-weight: var(--weight-bold);
    color: white !important;
    font-size: var(--text-sm) !important;
    line-height: 1.2;
    text-transform: capitalize;
    letter-spacing: 0.02em;
    background: var(--table-header-bg) !important;
}

.protocol-content td {
    padding: var(--space-sm) !important;
    border-bottom: 1px solid var(--gray-200);
    font-family: var(--font-mono) !important;
    font-size: var(--text-sm) !important;
    letter-spacing: -0.01em;
    background: var(--data-cell-bg) !important;
}

.protocol-content tbody tr:nth-child(even) td {
    background: var(--gray-warm-100, #f0f0ec) !important;
}

.protocol-content tbody tr:hover td {
    background: #e8f4fc !important;
}

/* Instructions Section - Better Formatting */
.protocol-content h3 + p,
.protocol-content h3 + ul,
.protocol-content h3 + ol {
    margin-top: var(--space-md);
}

.protocol-content ul,
.protocol-content ol {
    margin-left: var(--space-xl);
    margin-bottom: var(--space-lg);
}

.protocol-content li {
    margin-bottom: var(--space-sm);
    line-height: 1.6;
}

/* Definition Lists (dl, dt, dd) - for Instructions section */
.protocol-content dl {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: var(--space-md) var(--space-lg);
    margin: var(--space-lg) 0;
    padding: var(--space-lg);
    background: var(--gray-warm-50, #fafaf8);
    border-radius: 8px;
    border: 1px solid var(--gray-200);
}

.protocol-content dt {
    font-weight: var(--weight-bold);
    color: white;
    padding: var(--space-sm) var(--space-md);
    background: var(--table-header-bg);
    border-left: 4px solid var(--primary-dark);
    border-radius: 4px;
    display: flex;
    align-items: center;
    font-size: var(--text-sm);
    text-transform: capitalize;
    letter-spacing: 0.02em;
}

.protocol-content dd {
    padding: var(--space-sm);
    margin: 0;
    line-height: 1.8;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    background: var(--data-cell-bg, #fcfcfa);
    border-radius: 4px;
    border: 1px solid var(--gray-200);
}

/* Print and PDF buttons positioning */
.protocol-content > p:first-of-type,
.protocol-content > div:first-of-type {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

/* Protocol actions alignment (Print and Adobe Reader) */
#protocol-actions,
#protocol-actions-bar {
    display: flex !important;
    align-items: center !important;
    gap: 0.75rem !important;
}

#protocol-actions button,
#protocol-actions-bar button {
    margin: 0 !important;
}

#protocol-actions img,
#protocol-actions-bar img {
    margin: 0 !important;
    max-height: 40px;
}

/* Table footer labels */
.protocol-content tfoot th {
    font-weight: 700;
    text-align: left !important;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-blue));
    color: white !important;
}

/* Custom scrollbar for tables - bigger and more visible */
.protocol-content table::-webkit-scrollbar {
    height: 14px;
}

.protocol-content table::-webkit-scrollbar-track {
    background: var(--gray-200);
    border-radius: 8px;
    margin: 0 10px;
}

.protocol-content table::-webkit-scrollbar-thumb {
    background: var(--primary-blue);
    border-radius: 8px;
    border: 2px solid var(--gray-200);
}

.protocol-content table::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Firefox scrollbar */
.protocol-content table {
    scrollbar-width: thick;
    scrollbar-color: var(--primary-blue) var(--gray-200);
}

@media (max-width: 768px) {
    .protocol-content table {
        font-size: 0.85rem;
    }
    
    .protocol-content th,
    .protocol-content td {
        padding: var(--space-sm);
    }
}

/* Fix for instruction sections */
.protocol-content > h3 {
    background: var(--gray-100);
    padding: var(--space-md) var(--space-lg);
    border-left: 4px solid var(--primary-blue);
    margin-top: var(--space-xl);
    margin-bottom: var(--space-lg);
}

/* Better spacing for protocol sections */
.protocol-content > * + * {
    margin-top: var(--space-md);
}

.protocol-content > h2 + *,
.protocol-content > h3 + * {
    margin-top: var(--space-lg);
}

/* Modern button styling for protocol content */
.protocol-content button {
    background: var(--primary-blue);
    color: white;
    border: none;
    padding: var(--space-sm) var(--space-lg);
    border-radius: 4px;
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
    min-width: 80px;
    font-family: var(--font-primary);
}

.protocol-content button:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    background: var(--primary-dark);
}

.protocol-content button:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

/* Special styling for Print buttons */
.protocol-content button[onclick*="Print"],
.protocol-content button:contains("Print") {
    background: var(--success-green);
}

.protocol-content button[onclick*="Print"]:hover {
    background: #218838;
}

/* View buttons in table headers */
.protocol-content th button {
    min-width: 70px;
    padding: var(--space-xs) var(--space-md);
    font-size: 0.9rem;
}

/* Ensure buttons in tables are centered */
.protocol-content th {
    vertical-align: middle;
}

/* Merged header cells (initHeaderImageButtons): label stays left-aligned
   with the data column; View Image icon centers under the label text. */
.protocol-content th .pf-th-stack {
    display: inline-block;
    max-width: 100%;
    vertical-align: top;
}

.protocol-content th .pf-th-stack .pf-th-label {
    display: block;
    text-align: left;
}

.protocol-content th .pf-th-stack .pf-th-btnline {
    display: block;
    text-align: center;
    margin-top: 6px;
}

/* ===================================
   VENDOR INFO PAGES & CARDS
   =================================== */
.vendor-info-page {
    background: white;
    border-radius: 8px;
    padding: var(--space-xxl);
    box-shadow: var(--shadow-md);
}

.vendor-header {
    text-align: center;
    margin-bottom: var(--space-xxl);
    padding-bottom: var(--space-xl);
    border-bottom: 3px solid var(--gray-200);
}

.vendor-logo {
    max-width: 200px;
    margin-bottom: var(--space-lg);
}

.vendor-info-section {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.vendor-info-card {
    background: white;
    border-radius: 16px;
    padding: var(--space-xl);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06), 0 0 0 1px rgba(0,0,0,0.03);
    flex: 1;
    min-width: 300px;
}

.vendor-info-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: var(--space-lg);
    padding-bottom: 1rem;
    border-bottom: none;
    background-image: linear-gradient(to right, var(--primary-blue), var(--accent-teal));
    background-size: 100% 3px;
    background-position: bottom;
    background-repeat: no-repeat;
}

.vendor-links {
    list-style: none;
    padding: 0;
}

.vendor-links li {
    margin-bottom: var(--space-sm);
}

.vendor-links a {
    display: block;
    padding: var(--space-md);
    background: var(--gray-50);
    border-radius: 8px;
    color: var(--gray-800);
    font-weight: 600;
    transition: all var(--transition-fast);
    border-left: 4px solid transparent;
}

.vendor-links a:hover {
    background: white;
    border-left-color: var(--primary-blue);
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
}
/* Wave B — Top of Protocol Listing */
.protocol-listing-container {
    position: relative;
}

.protocol-listing-container::before {
    content: '';
    display: block;
    width: 100%;
    height: 50px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 60' preserveAspectRatio='none'%3E%3Cpath d='M0,35 C320,55 640,15 960,30 C1120,38 1300,20 1440,28 L1440,0 L0,0 Z' fill='%23fafaf8'/%3E%3Cpath d='M0,35 C320,55 640,15 960,30 C1120,38 1300,20 1440,28' fill='none' stroke='%230066cc' stroke-width='1.5' stroke-opacity='0.18'/%3E%3C/svg%3E");
    background-size: 100% 100%;
    background-repeat: no-repeat;
    filter: drop-shadow(0 2px 4px rgba(0,102,204,0.06));
}

[data-theme="dark"] .protocol-listing-container::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 60' preserveAspectRatio='none'%3E%3Cpath d='M0,35 C320,55 640,15 960,30 C1120,38 1300,20 1440,28 L1440,0 L0,0 Z' fill='%23121214'/%3E%3Cpath d='M0,35 C320,55 640,15 960,30 C1120,38 1300,20 1440,28' fill='none' stroke='%234d9fff' stroke-width='1.5' stroke-opacity='0.25'/%3E%3C/svg%3E");
    filter: drop-shadow(0 2px 4px rgba(77,159,255,0.1));
}

/* ===================================
   FOOTER
   =================================== */
.site-footer {
    background: linear-gradient(135deg, #1a1a2e 0%, #212529 50%, #16213e 100%);
    color: var(--gray-300);
    padding: var(--space-xxl) 0 var(--space-lg);
    position: relative;
    margin-top: 0;
}

.site-footer::before {
    content: '';
    display: block;
    width: 100%;
    height: 60px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 60' preserveAspectRatio='none'%3E%3Cpath d='M0,20 C360,60 720,0 1080,40 C1260,55 1380,25 1440,30 L1440,60 L0,60 Z' fill='%23212529'/%3E%3C/svg%3E");
    background-size: cover;
    background-repeat: no-repeat;
    position: relative;
    margin-top: var(--space-xxl);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    text-align: center;
}

.footer-content p {
    margin: var(--space-sm) 0;
}

.footer-divider {
    border: none;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.15), transparent);
    margin: var(--space-lg) auto;
    max-width: 400px;
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 768px) {
    /* Mobile: Better touch targets */
    * {
        -webkit-tap-highlight-color: rgba(0, 102, 204, 0.2);
    }
    
    /* Mobile: Reduce padding */
    .site-content {
        padding: var(--space-lg) var(--space-xs);
    }
    
    /* Mobile: Compact header bar */
    .scanner-selector-bar {
        padding: var(--space-md);
    }
    
    .site-branding h1 {
        font-size: 1.25rem;
    }
    
    /* Mobile: Stack manufacturer selector */
    .scanner-selector-container {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-md);
    }
    
    .scanner-selector-left {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-md);
    }
    
    /* Mobile: Compact manufacturer pill buttons */
    .scanner-btn.manufacturer-btn {
        width: auto;
        height: auto;
        min-height: auto;
        padding: 4px 10px;
    }

    .manufacturer-logo {
        height: 16px;
        width: auto;
    }

    .manufacturer-btn[data-manufacturer="philips"] .manufacturer-logo {
        transform: scale(1.55);
    }

    .scanner-btn.manufacturer-btn[data-manufacturer="all"] {
        min-height: auto;
        font-size: 0.85rem;
    }

    /* Mobile: Better field strength toggle */
    .field-strength-toggle {
        width: 100%;
        justify-content: center;
        padding: 4px;
    }

    .field-strength-btn {
        padding: 10px 16px;
        min-height: 48px;
        font-size: 0.9rem;
    }
    
    /* Mobile: Better category grid - 2 columns */
    .category-grid {
        flex-direction: column;
        gap: var(--space-md);
        max-width: 600px;
    }
    
    /* Mobile: Compact category cards */
    .category-card {
        padding: var(--space-lg) var(--space-md);
        flex: 1 1 auto;
        min-width: 100%;
    }
    
    .category-icon {
        margin-bottom: var(--space-sm);
    }
    
    .category-title {
        font-size: 1.1rem;
        margin-bottom: var(--space-xs);
    }
    
    .category-count {
        font-size: 0.85rem;
    }
    
    .category-badge {
        font-size: 0.75rem;
        padding: 3px 8px;
    }
    
    /* Mobile: Single column for protocols */
    .protocol-groups {
        grid-template-columns: 1fr;
    }
    
    .protocol-single {
        padding: var(--space-sm);
    }
    
    .protocol-title {
        font-size: 1.5rem;
    }
    
    /* Mobile: Compact header */
    .protocol-view-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    /* Mobile: Better subcategory grid */
    .subcategory-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    /* Mobile: Restrict subcategory icon size so they aren't huge */
    .subcategory-icon {
        width: 4rem; 
        height: 4rem;
        margin-bottom: var(--space-sm);
        object-fit: contain;
    }

    /* Mobile: Stack definition lists (Instructions) */
    .protocol-content dl {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
        padding: var(--space-md);
    }

    .protocol-content dt {
        border-left: 3px solid var(--primary-dark);
        background: var(--table-header-bg);
        color: white;
        width: 100%;
    }
    
    .protocol-content dd {
        margin-bottom: var(--space-md);
        padding-left: var(--space-md);
    }
    
    /* Mobile: Scrollable table with sticky first column */
    .protocol-content table {
        display: block;
        overflow-x: auto;
        width: 100%;
        -webkit-overflow-scrolling: touch;
    }

    .protocol-content table th:first-child, 
    .protocol-content table td:first-child {
        position: sticky;
        left: 0;
        z-index: 10;
        /* Ensure background opacity for sticky effect */
        box-shadow: 2px 0 5px -2px rgba(0,0,0,0.1);
    }
    
    /* Specific background for sticky cells to match their original style */
    .protocolsGridBlueTitleLeft,
    .protocolsGridBlueTitleLeftTop,
    .protocolsGridBlueTitleLeftBottom,
    .protocolsGridBlueTitleRight,
    .protocolsGridBlueTitleRightTop,
    .protocolsGridBlueTitleRightBottom {
        background: #3a6a97 !important;
    }

    .protocolGridInfo,
    .protocolGridInfoTop,
    .protocolGridInfoBottom {
        background: #fff !important;
    }
    
    .protocolGridDataGrey,
    .protocolGridDataGreyBottom {
        background: #d8d8d8 !important;
    }
    
    /* Ensure headers stay on top of sticky column */
    .protocol-content thead th:first-child {
        z-index: 20;
    }
}

/* Mobile: Further adjustments for very small screens */
@media (max-width: 480px) {
    .site-content {
        padding: var(--space-md) var(--space-sm);
    }
    
    /* On very small screens, make cards slightly smaller */
    .category-grid {
        gap: var(--space-sm);
        max-width: 100%;
    }
    
    .category-card {
        padding: var(--space-md);
        min-width: 100%;
    }
    
    .category-icon {
        width: 5rem; /* Increased from 2rem for better visibility */
        height: 5rem;
    }
    
    .category-title {
        font-size: 1rem;
    }
    
    .category-count {
        font-size: 0.8rem;
    }
    
    .category-badge {
        font-size: 0.7rem;
        padding: 2px 6px;
    }
    
    /* Expanded search input on small screens */
    .search-container.expanded .search-input {
        font-size: 16px; /* Prevents zoom on iOS */
        min-height: 44px;
    }
    
    /* Mobile: Better back button */
    .back-button,
    .subcategory-back-button {
        padding: 10px 14px;
        min-height: 44px;
        font-size: 0.95rem;
    }
    
    /* Compact manufacturer pills on very small screens */
    .scanner-btn.manufacturer-btn {
        width: auto;
        height: auto;
        padding: 3px 8px;
        border-radius: 20px;
    }
    
    /* Smaller table font and padding on very small screens */
    .protocol-content table {
        font-size: 0.75rem;
    }
    
    .protocol-content th,
    .protocol-content td {
        padding: 4px 6px;
    }
    
    /* Reduce definition list font size */
    .protocol-content dl {
        font-size: 0.9rem;
    }
    
    .protocol-content dt {
        font-size: 0.85rem;
        padding: 4px 8px;
    }
    
    .protocol-content dd {
        font-size: 0.9rem;
        padding: 4px 8px;
    }
}

/* Mobile: Add smooth scrolling and touch improvements */
@media (max-width: 768px) {
    html {
        scroll-behavior: smooth;
        -webkit-overflow-scrolling: touch;
    }
    
    /* Improve tap highlighting */
    button, a, .category-card {
        -webkit-tap-highlight-color: rgba(0, 102, 204, 0.2);
    }
}

/* ===================================
   PRINT STYLES
   =================================== */
@media print {
    .scanner-selector-bar,
    .back-button,
    .site-footer {
        display: none;
    }
    
    .protocol-single {
        box-shadow: none;
        padding: 0;
    }
}

/* ===================================
   UTILITY CLASSES
   =================================== */
.text-center { text-align: center; }
.mt-lg { margin-top: var(--space-lg); }
.mb-lg { margin-bottom: var(--space-lg); }
.hidden { display: none !important; }

/* ===================================
   PROTOCOL TABLE STYLES
   =================================== */
.breadcrumb {
    background: #f5f5f5;
    padding: 10px 15px;
    margin-bottom: 20px;
    border-left: 4px solid #0066cc;
}

.breadcrumb a {
    color: #0066cc;
    text-decoration: none;
    font-weight: 600;
}

table.protocol-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-family: var(--font-primary);
    font-size: 13px;
    border-spacing: 0;
}

.pageTitle {
    background: #000;
    color: #fff;
    font-size: 18px;
    font-weight: bold;
    padding: 15px;
    text-align: center;
}

.protocolPathTitle {
    background: #333;
    color: #fff;
    font-size: 14px;
    font-weight: bold;
    padding: 10px;
}

/* Blue Title Cells (Left Column) */
.protocolsGridBlueTitleLeft,
.protocolsGridBlueTitleLeftTop,
.protocolsGridBlueTitleLeftBottom,
.protocolsGridBlueTitleRight,
.protocolsGridBlueTitleRightTop,
.protocolsGridBlueTitleRightBottom {
    background: var(--table-header-bg);
    color: #fff;
    font-weight: var(--weight-bold);
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--gray-300);
    font-size: var(--text-sm);
    text-transform: capitalize;
    letter-spacing: 0.02em;
}

/* Orange Title Cells (Headers) */
.protocolsGridOrangeTitleLeftTop,
.protocolsGridOrangeTitleTop,
.protocolsGridOrangeTitleRightTop {
    background: #f79646;
    color: #fff;
    font-weight: var(--weight-bold);
    padding: 8px;
    border: 1px solid var(--gray-300);
    text-align: center;
}

/* Info Cells (White) */
.protocolGridInfo,
.protocolGridInfoTop,
.protocolGridInfoBottom {
    background: var(--data-cell-bg);
    padding: var(--space-sm);
    border: 1px solid var(--gray-300);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    letter-spacing: -0.01em;
}

/* Grey Alternating Cells */
.protocolGridDataGrey,
.protocolGridDataGreyBottom {
    background: var(--gray-warm-100);
    padding: var(--space-sm);
    border: 1px solid var(--gray-300);
    font-family: var(--font-mono);
    font-size: var(--text-sm);
}

/* Light Blue Cells (Time of Acquisition) */
.protocolGridDataLtBlueTopBottom {
    background: #b8cce4;
    padding: 8px;
    border: 1px solid var(--gray-300);
    text-align: center;
    font-weight: var(--weight-bold);
}

/* Button Styles */
.btnPrint,
.btnAdobeReader {
    display: inline-block;
    padding: 5px 10px;
    background: #0066cc;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
}

.btnPrint:hover,
.btnAdobeReader:hover {
    background: #004499;
}

/* View Image Button */
table.protocol-table img[alt=""] {
    cursor: pointer;
    border: none;
}

/* Transposed-format image button (.pf-imgic) — matches the old "View Image"
   eye-pill (see initViewImageIcons). Info icon stays inline on the scan name;
   the image button drops to its own line below, centered. */
.protocol-content .pf-imgic {
    display: flex;
    width: max-content;
    margin: 8px auto 2px;
    padding: 6px 14px;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0066cc, #00a8cc);
    color: #fff;
    border-radius: 6px;
    line-height: 1;
    font-size: 1em;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
    cursor: pointer;
}

.protocol-content .pf-imgic:hover {
    background: linear-gradient(135deg, #0a73d6, #11b8db);
}

.protocol-content .pf-imgic svg {
    width: 20px;
    height: 20px;
    display: block;
}

table.protocol-table a {
    text-decoration: none;
    white-space: nowrap;
}

/* View Image button links - prevent text wrap and ensure proper display */
table a[onclick*="showImageWithCaption"],
table a[onclick*="window.open"],
.protocol-content table a[style*="background"] {
    white-space: nowrap !important;
    display: inline-block;
    min-width: max-content;
}

/* Responsive Table */
@media (max-width: 768px) {
    table.protocol-table {
        font-size: 11px;
    }
    
    .pageTitle {
        font-size: 16px;
    }
}

/* ===================================
   BREADCRUMB NAVIGATION
   =================================== */
.breadcrumb-nav {
    padding: 0.75rem 0;
    margin-bottom: 1.5rem;
    border-bottom: none;
    background-image: linear-gradient(to right, transparent, var(--primary-blue), var(--accent-teal), transparent);
    background-size: 100% 1px;
    background-position: bottom;
    background-repeat: no-repeat;
}

.breadcrumb-list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0;
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: 0.95rem;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
}

.breadcrumb-item a {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.breadcrumb-item a:hover {
    color: var(--primary-dark);
    background: var(--gray-100);
    text-decoration: none;
}

.breadcrumb-item.current span {
    color: var(--gray-600);
    font-weight: 600;
    padding: 0.25rem 0.5rem;
}

.breadcrumb-separator {
    color: var(--gray-400);
    font-size: 0.85rem;
    margin: 0 0.25rem;
    user-select: none;
}

.breadcrumb-home-icon {
    font-size: 1.1rem;
    line-height: 1;
}

/* Mobile breadcrumbs */
@media (max-width: 768px) {
    .breadcrumb-nav {
        padding: 0.5rem 0;
        margin-bottom: 1rem;
    }
    
    .breadcrumb-list {
        font-size: 0.85rem;
    }
    
    .breadcrumb-item a,
    .breadcrumb-item.current span {
        padding: 0.2rem 0.4rem;
    }
    
    .breadcrumb-separator {
        margin: 0 0.15rem;
    }
}

/* Very small screens - truncate long breadcrumbs */
@media (max-width: 480px) {
    .breadcrumb-list {
        font-size: 0.8rem;
    }

    .breadcrumb-item a,
    .breadcrumb-item.current span {
        max-width: 120px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
}

/* ===================================
   MOBILE-FIRST RESPONSIVE DESIGN v2.5
   Compact header, readable tables
   =================================== */

/* --- MOBILE HEADER FIX: Keep header hidden, minimal toggle --- */
@media (max-width: 768px) {
    /* Make header NON-sticky on mobile - let it scroll away */
    .scanner-selector-bar {
        position: relative !important;
        top: auto !important;
    }

    /* Hide the toggle button completely - header scrolls with page */
    .header-toggle-btn {
        display: none !important;
    }

    /* Much more compact mobile header */
    .scanner-selector-bar {
        padding: 8px 12px !important;
    }

    .scanner-selector-container {
        gap: 8px !important;
    }

    /* Smaller logo */
    .site-logo-spin {
        height: 30px !important;
    }

    /* Compact search toggle on smallest screens */
    .search-toggle-btn {
        width: 36px !important;
        height: 36px !important;
    }

    /* Compact manufacturer pills on smallest screens */
    .scanner-btn.manufacturer-btn {
        width: auto !important;
        height: auto !important;
        padding: 3px 8px !important;
        border-radius: 20px !important;
    }

    .btn-text {
        font-size: 0.7rem !important;
    }

    .manufacturer-logo {
        height: 14px !important;
    }

    .manufacturer-btn[data-manufacturer="philips"] .manufacturer-logo {
        transform: scale(1.55);
    }

    /* Smaller field strength buttons */
    .field-strength-btn {
        padding: 4px 10px !important;
        font-size: 0.8rem !important;
        min-height: 32px !important;
    }

    .field-strength-toggle {
        padding: 2px !important;
    }
}

/* --- MOBILE TABLE FIX: Readable horizontal scroll --- */
@media (max-width: 768px) {
    .protocol-content table {
        display: block !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        white-space: nowrap !important;
        font-size: 13px !important;
        margin: 12px 0 !important;
    }

    .protocol-content th,
    .protocol-content td {
        padding: 8px 10px !important;
        min-width: 80px !important;
    }

    /* Make first column sticky and readable */
    .protocol-content table th:first-child,
    .protocol-content table td:first-child {
        position: sticky !important;
        left: 0 !important;
        z-index: 10 !important;
        background: var(--table-header-bg) !important;
        color: white !important;
        min-width: 100px !important;
        max-width: 120px !important;
        white-space: normal !important;
        word-break: break-word !important;
        box-shadow: 3px 0 6px rgba(0,0,0,0.15) !important;
    }

    /* Data cells in first column */
    .protocol-content table td:first-child {
        background: #3a6a97 !important;
        font-weight: 600 !important;
        font-size: 12px !important;
    }

    /* 2026-10-23: the row-striping and hover rules (.protocol-content tbody tr:nth-child(even) td, tr:hover td) outrank the
       sticky first-column background above, leaving white label text on a light cell on every even row. Keep the label cell blue. */
    .protocol-content tbody tr:nth-child(even) td:first-child,
    .protocol-content tbody tr:hover td:first-child,
    [data-theme="dark"] .protocol-content tbody tr:nth-child(even) td:first-child,
    [data-theme="dark"] .protocol-content tbody tr:hover td:first-child {
        background: #3a6a97 !important;
    }

    /* 2026-10-23: four legacy pages nest a <table> inside a <dd>. The dl is a grid, and a grid item's min-width defaults to
       its content, so the nowrap table pushed the whole page 1000+ px wide on phones. Let the dd shrink and scroll instead. */
    .protocol-content dd {
        min-width: 0 !important;
        max-width: 100% !important;
        overflow-x: auto !important;
    }

    /* Better scrollbar visibility */
    .protocol-content table::-webkit-scrollbar {
        height: 14px !important;
    }

    .protocol-content table::-webkit-scrollbar-track {
        background: #e0e0e0 !important;
    }

    .protocol-content table::-webkit-scrollbar-thumb {
        background: #0066cc !important;
        border-radius: 7px !important;
        border: 2px solid #e0e0e0 !important;
    }
}

/* --- Hide swipe indicators (not needed) --- */
.swipe-indicator,
.table-scroll-indicator {
    display: none !important;
}

/* --- Safe Area for notched phones --- */
@supports (padding: env(safe-area-inset-top)) {
    .scanner-selector-bar {
        padding-top: calc(8px + env(safe-area-inset-top, 0px));
        padding-left: calc(12px + env(safe-area-inset-left, 0px));
        padding-right: calc(12px + env(safe-area-inset-right, 0px));
    }

    .site-content {
        padding-left: calc(var(--space-md) + env(safe-area-inset-left, 0px));
        padding-right: calc(var(--space-md) + env(safe-area-inset-right, 0px));
        padding-bottom: calc(var(--space-lg) + env(safe-area-inset-bottom, 0px));
    }
}

/* --- Large Tablet Breakpoint (1024px) --- */
@media (min-width: 1024px) {
    .category-grid {
        max-width: 1400px;
    }

    .protocol-groups {
        grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    }

    .subcategory-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

/* --- Large Desktop Breakpoint (1440px) --- */
@media (min-width: 1440px) {
    .site-content {
        max-width: 1600px;
        margin: 0 auto;
    }

    .scanner-selector-container {
        max-width: 1600px;
        margin: 0 auto;
    }

    .protocol-single {
        max-width: 1400px;
    }
}

/* --- 4K / Ultrawide Breakpoint (1920px) --- */
@media (min-width: 1920px) {
    .site-content {
        max-width: 1800px;
        padding-left: var(--space-xxl);
        padding-right: var(--space-xxl);
    }

    .filter-toolbar {
        --pf-toolbar-inset: max(3rem, calc((100% - 1800px) / 2 + 3rem));
    }

    .scanner-selector-container {
        max-width: 1800px;
    }

    /* Scale typography for large displays */
    body {
        font-size: 17px;
    }

    .category-card {
        padding: var(--space-xl);
    }

    .category-title {
        font-size: 1.35rem;
    }

    .protocol-content table {
        font-size: 1rem;
    }

    .protocol-title {
        font-size: 2.75rem;
    }
}

/* --- Touch Device Optimizations --- */
@media (hover: none) and (pointer: coarse) {
    /* Larger touch targets */
    .scanner-btn,
    .field-strength-btn,
    .protocol-item,
    .category-card,
    .subcategory-card {
        min-height: 48px;
    }

    /* Remove hover transforms on touch (they feel laggy) */
    .category-card:hover,
    .subcategory-card:hover {
        transform: none;
    }

    /* Add active/tap state instead */
    .category-card:active,
    .subcategory-card:active {
        transform: scale(0.98);
        box-shadow: var(--shadow-sm);
    }

    .protocol-item:active {
        background: white;
        border-left-color: var(--primary-blue);
        transform: scale(0.99);
    }

    /* Better tap highlighting */
    * {
        -webkit-tap-highlight-color: rgba(0, 102, 204, 0.15);
    }

    /* Larger scrollbars for touch */
    .protocol-content table::-webkit-scrollbar {
        height: 18px;
    }

    .protocol-content table::-webkit-scrollbar-thumb {
        border: 3px solid var(--gray-200);
    }
}

/* --- Mouse/Trackpad Device Optimizations --- */
@media (hover: hover) and (pointer: fine) {
    .category-card:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-card-hover);
    }

    .subcategory-card:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }

    .protocol-item:hover {
        transform: translateX(2px);
    }
}

/* --- Orientation: Landscape on Phones --- */
@media (orientation: landscape) and (max-height: 500px) {
    .scanner-selector-bar {
        padding: 6px calc(var(--space-lg) + var(--safe-area-left));
        padding-right: calc(var(--space-lg) + var(--safe-area-right));
    }

    .scanner-selector-container {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.75rem;
    }

    .site-branding {
        order: 1;
    }

    .search-container {
        order: 2;
    }

    .scanner-btn.manufacturer-btn {
        width: auto;
        height: auto;
    }

    .site-logo-spin {
        height: 32px;
    }
}

/* --- Orientation: Landscape on Tablets --- */
@media (orientation: landscape) and (min-width: 744px) and (max-width: 1024px) {
    .protocol-content table {
        font-size: 0.9rem;
    }

    .protocol-content th,
    .protocol-content td {
        white-space: normal;
        word-break: break-word;
    }
}

/* ===================================
   ENHANCED TABLE SCROLL WRAPPER
   =================================== */
.table-scroll-wrapper {
    position: relative;
    overflow-x: auto;
    overflow-y: visible;
    -webkit-overflow-scrolling: touch;
    margin: var(--space-lg) 0;
}

/* Scroll shadow indicators */
.table-scroll-wrapper::before,
.table-scroll-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 20px; /* Above the scroll indicator */
    width: 40px;
    pointer-events: none;
    z-index: 15;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.table-scroll-wrapper::before {
    left: 0;
    background: linear-gradient(to right, rgba(255,255,255,0.95) 0%, transparent 100%);
}

.table-scroll-wrapper::after {
    right: 0;
    background: linear-gradient(to left, rgba(255,255,255,0.95) 0%, transparent 100%);
}

/* JS toggles these classes based on scroll position */
.table-scroll-wrapper.can-scroll-left::before { opacity: 1; }
.table-scroll-wrapper.can-scroll-right::after { opacity: 1; }

/* Scroll progress indicator bar */
.table-scroll-indicator {
    height: 6px;
    background: var(--gray-200);
    border-radius: 3px;
    margin-top: 10px;
    overflow: hidden;
    position: relative;
}

.table-scroll-indicator-thumb {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-teal));
    border-radius: 3px;
    min-width: 20px;
    transition: width 0.1s ease-out;
}

/* "Swipe to see more" hint for mobile */
.swipe-indicator {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--gray-100);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--gray-600);
    margin-top: 12px;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.swipe-indicator-arrows {
    display: inline-flex;
    gap: 4px;
    animation: swipeHint 1.5s ease-in-out infinite;
}

@keyframes swipeHint {
    0%, 100% { opacity: 0.5; transform: translateX(0); }
    50% { opacity: 1; transform: translateX(3px); }
}

@media (max-width: 1023px) {
    .swipe-indicator {
        display: flex;
    }
}

@media (min-width: 1024px) {
    .swipe-indicator {
        display: none !important;
    }
}

/* Enhanced sticky first column */
.table-scroll-wrapper table th:first-child,
.table-scroll-wrapper table td:first-child {
    position: sticky;
    left: 0;
    z-index: 10;
    min-width: 140px;
    max-width: 200px;
    box-shadow: var(--shadow-table-sticky);
}

.table-scroll-wrapper table thead th:first-child {
    z-index: 20;
}

/* Card mode removed - using horizontal scroll instead */

/* ===================================
   SMOOTH ANIMATIONS & MICRO-INTERACTIONS
   =================================== */

/* Staggered fade-in for category cards */
@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.category-card {
    animation: fadeSlideIn 0.5s var(--ease-out-expo) backwards;
}

.category-card:nth-child(1) { animation-delay: 0ms; }
.category-card:nth-child(2) { animation-delay: 60ms; }
.category-card:nth-child(3) { animation-delay: 120ms; }
.category-card:nth-child(4) { animation-delay: 180ms; }
.category-card:nth-child(5) { animation-delay: 240ms; }
.category-card:nth-child(6) { animation-delay: 300ms; }

/* Smooth button transitions */
.scanner-btn {
    transition:
        transform 0.2s var(--ease-out-expo),
        box-shadow 0.2s var(--ease-out-expo),
        background-color 0.15s ease,
        border-color 0.15s ease;
}

.scanner-btn:active {
    transform: scale(0.96);
}

/* Table row animations */
.protocol-content tbody tr {
    transition: background-color 0.15s ease;
}

/* Protocol item smooth transitions */
.protocol-item {
    transition:
        background-color 0.2s ease,
        border-color 0.2s ease,
        box-shadow 0.2s ease,
        transform 0.2s var(--ease-out-expo);
}

/* Subcategory card animations */
.subcategory-card {
    animation: fadeSlideIn 0.4s var(--ease-out-expo) backwards;
}

.subcategory-card:nth-child(1) { animation-delay: 0ms; }
.subcategory-card:nth-child(2) { animation-delay: 40ms; }
.subcategory-card:nth-child(3) { animation-delay: 80ms; }
.subcategory-card:nth-child(4) { animation-delay: 120ms; }
.subcategory-card:nth-child(5) { animation-delay: 160ms; }
.subcategory-card:nth-child(6) { animation-delay: 200ms; }
.subcategory-card:nth-child(7) { animation-delay: 240ms; }
.subcategory-card:nth-child(8) { animation-delay: 280ms; }

/* ===================================
   ENHANCED VISUAL POLISH
   =================================== */

/* Better category card shadows */
.category-card {
    box-shadow: var(--shadow-card);
}

.category-card:hover {
    box-shadow: var(--shadow-card-hover);
}

/* Improved table appearance */
.protocol-content table {
    border-radius: 8px;
    overflow: hidden;
}

/* Better scrollbar styling for all scrollable areas */
.protocol-content table::-webkit-scrollbar {
    height: 12px;
    background: transparent;
}

.protocol-content table::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: 6px;
    margin: 0 8px;
}

.protocol-content table::-webkit-scrollbar-thumb {
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-teal));
    border-radius: 6px;
    border: 2px solid var(--gray-100);
}

.protocol-content table::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(90deg, var(--primary-dark), var(--primary-blue));
}

/* Firefox scrollbar */
.protocol-content table {
    scrollbar-width: thin;
    scrollbar-color: var(--primary-blue) var(--gray-100);
}

/* Focus states for accessibility */
.scanner-btn:focus-visible,
.field-strength-btn:focus-visible,
.category-card:focus-visible,
.protocol-item:focus-visible {
    outline: 3px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===================================
   BACK TO TOP BUTTON
   Appears after scrolling; returns to page top
   =================================== */

.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: linear-gradient(135deg, #0066cc, #00a8cc);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: linear-gradient(135deg, #0059b3, #0095b8);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

.back-to-top:focus-visible {
    outline: 3px solid rgba(0, 168, 204, 0.6);
    outline-offset: 2px;
}

.back-to-top svg {
    display: block;
}

@media (max-width: 768px) {
    .back-to-top {
        bottom: 16px;
        right: 16px;
        width: 44px;
        height: 44px;
    }
}

/* ===================================
   ACQUISITION TIME ROW HIGHLIGHTING
   Critical row for scan duration
   =================================== */

.highlight-time-row {
    background: linear-gradient(90deg, #fff3cd 0%, #fff9e6 100%) !important;
    border-left: 4px solid #f0ad4e !important;
    position: relative;
}

.highlight-time-row td,
.highlight-time-row th {
    background: transparent !important;
    font-weight: 600;
}

.highlight-time-row td:first-child,
.highlight-time-row th:first-child {
    color: #856404;
    font-weight: 700;
    padding-left: 12px;
}

/* Clock icon before the label — uses SVG background instead of emoji (C4-1) */
.highlight-time-row td:first-child::before,
.highlight-time-row th:first-child::before {
    content: "";
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-right: 4px;
    vertical-align: middle;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23856404' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpolyline points='12 6 12 12 16 14'/%3E%3C/svg%3E") no-repeat center;
    background-size: contain;
}

/* Ensure visibility on mobile sticky columns */
@media (max-width: 768px) {
    .highlight-time-row td:first-child,
    .highlight-time-row th:first-child {
        background: linear-gradient(90deg, #fff3cd 0%, #fff9e6 100%) !important;
        border-left: 4px solid #f0ad4e;
    }
}

/* ===================================
   SKELETON LOADING STATES (C4-5)
   =================================== */
@keyframes shimmer {
    0% { background-position: -200px 0; }
    100% { background-position: calc(200px + 100%) 0; }
}

.skeleton {
    background: linear-gradient(90deg, var(--gray-100) 0px, var(--gray-200) 40px, var(--gray-100) 80px);
    background-size: 200px 100%;
    animation: shimmer 1.5s ease-in-out infinite;
    border-radius: 4px;
}

.skeleton-card {
    height: 180px;
    border-radius: 8px;
    flex: 0 1 280px;
    min-width: 240px;
}

.skeleton-protocol-item {
    height: 52px;
    margin-bottom: var(--space-sm);
    border-radius: 8px;
}

.skeleton-text {
    height: 1em;
    margin-bottom: 0.5em;
}

.skeleton-text.short { width: 40%; }
.skeleton-text.medium { width: 65%; }
.skeleton-text.long { width: 90%; }

/* ===================================
   DARK MODE (C1-1)
   Manual toggle via [data-theme="dark"]
   =================================== */
[data-theme="dark"] {
    --gray-warm-50: #1a1a1e;
    --gray-warm-100: #222226;
    --data-cell-bg: #1e1e22;
    --gray-50: #1a1a1e;
    --gray-100: #2a2a2e;
    --gray-200: #3a3a3e;
    --gray-300: #4a4a4e;
    --gray-400: #6a6a6e;
    --gray-500: #8a8a8e;
    --gray-600: #aaaaae;
    --gray-700: #ccccce;
    --gray-800: #e8e8ea;
    --gray-900: #ffffff;
    --primary-blue: #4d9fff;
    --primary-dark: #3d8fef;
    --table-header-bg: #2a4a64;
    --field-15t-bg: #3a5a75;
    --field-30t-bg: #a06000;
    --wave-body-fill: #121214;
}

[data-theme="dark"] body {
    background-color: #121214;
    background-image: radial-gradient(circle, #2a2a2e 0.5px, transparent 0.5px);
    background-size: 24px 24px;
    color: var(--gray-800);
}

[data-theme="dark"] .scanner-selector-bar {
    background: #1a1a1e;
    border-bottom-color: var(--primary-blue);
}

[data-theme="dark"] .filter-toolbar {
    background: #161618;
    border-bottom-color: var(--gray-200);
}

[data-theme="dark"] .scanner-btn.manufacturer-btn {
    background: #2a2a2e;
    border-color: #3a3a3e;
}

[data-theme="dark"] .scanner-btn.manufacturer-btn.active {
    background: #2a2a2e;
    border-color: #4a9eff;
    box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.4);
}

[data-theme="dark"] .scanner-btn.manufacturer-btn[data-manufacturer="all"].active {
    background: #2a2a2e;
    color: #4a9eff;
    border-color: #4a9eff;
}

[data-theme="dark"] .field-strength-btn {
    background: #2a2a2e;
    border-color: #3a3a3e;
    color: #ccc;
}

[data-theme="dark"] .field-strength-btn.active {
    background: #2a2a2e;
    color: #4a9eff;
    border-color: #4a9eff;
    box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.4);
}

[data-theme="dark"] .category-card,
[data-theme="dark"] .subcategory-card,
[data-theme="dark"] .protocol-group,
[data-theme="dark"] .protocol-single,
[data-theme="dark"] .vendor-info-card,
[data-theme="dark"] .vendor-info-page {
    background: #1e1e22;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2), 0 0 0 1px rgba(255,255,255,0.05);
}

[data-theme="dark"] .category-grid-container {
    background: linear-gradient(135deg,
        rgba(77, 159, 255, 0.04) 0%,
        rgba(0, 168, 204, 0.02) 50%,
        rgba(18, 18, 20, 0) 100%);
}

[data-theme="dark"] .protocol-item {
    background: var(--gray-50);
}

[data-theme="dark"] .protocol-item:hover {
    background: var(--gray-100);
}

[data-theme="dark"] .protocol-content thead {
    background: var(--table-header-bg);
}

[data-theme="dark"] .protocol-content td {
    background: var(--data-cell-bg) !important;
    border-bottom-color: var(--gray-200);
}

[data-theme="dark"] .protocol-content td[style*="color: #000"] {
    color: var(--gray-800) !important;
}

.protocol-content td[style*="color: #000"] + td {
    text-align: left !important;
    vertical-align: top !important;
}

[data-theme="dark"] .protocol-content tbody tr:nth-child(even) td {
    background: var(--gray-warm-100) !important;
}

[data-theme="dark"] .protocol-content tbody tr:hover td {
    background: #1a2a3a !important;
}

[data-theme="dark"] .search-input,
[data-theme="dark"] .search-container .search-input,
[data-theme="dark"] .search-container.expanded .search-input,
[data-theme="dark"] .search-container .search-input:focus {
    color: var(--gray-800) !important;
    background: #2a2a2e !important;
    border-color: var(--primary-blue) !important;
}

[data-theme="dark"] .search-input::placeholder {
    color: var(--gray-500);
}

[data-theme="dark"] .site-footer {
    background: linear-gradient(135deg, #0a0a14 0%, #0a0a0c 50%, #0a0f1a 100%);
}

[data-theme="dark"] .site-footer::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 60' preserveAspectRatio='none'%3E%3Cpath d='M0,20 C360,60 720,0 1080,40 C1260,55 1380,25 1440,30 L1440,60 L0,60 Z' fill='%230a0a0c'/%3E%3C/svg%3E");
}

[data-theme="dark"] .breadcrumb-nav {
    background-image: linear-gradient(to right, transparent, var(--primary-blue), var(--accent-teal), transparent);
}

/* Dark mode toggle button */
.dark-mode-toggle {
    background: none;
    border: 1px solid var(--gray-300);
    border-radius: 4px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--gray-600);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.dark-mode-toggle:hover {
    background: var(--gray-100);
    color: var(--gray-800);
}

.dark-mode-toggle .icon-sun,
.dark-mode-toggle .icon-moon {
    width: 20px;
    height: 20px;
}

[data-theme="dark"] .dark-mode-toggle .icon-moon { display: none; }
[data-theme="dark"] .dark-mode-toggle .icon-sun { display: block; }
.dark-mode-toggle .icon-sun { display: none; }
.dark-mode-toggle .icon-moon { display: block; }

/* Dark mode highlight time row */
[data-theme="dark"] .highlight-time-row {
    background: linear-gradient(90deg, #4a3f1a 0%, #3d3516 100%) !important;
}

[data-theme="dark"] .highlight-time-row td:first-child,
[data-theme="dark"] .highlight-time-row th:first-child {
    color: #ffc107;
}

/* Legacy dark mode media query fallback */
@media (prefers-color-scheme: dark) {
    .highlight-time-row {
        background: linear-gradient(90deg, #4a3f1a 0%, #3d3516 100%) !important;
    }

    .highlight-time-row td:first-child,
    .highlight-time-row th:first-child {
        color: #ffc107;
    }
}

/* ===================================
   PREV/NEXT PROTOCOL NAVIGATION (C3-5)
   =================================== */
.protocol-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--gray-200);
    gap: var(--space-md);
}

.protocol-nav a {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--gray-100);
    border-radius: 4px;
    font-weight: var(--weight-semibold);
    font-size: var(--text-sm);
    color: var(--gray-700);
    transition: all var(--transition-fast);
    max-width: 45%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.protocol-nav a:hover {
    background: var(--gray-200);
    color: var(--primary-blue);
}

.protocol-nav .nav-placeholder {
    visibility: hidden;
}

/* ===================================
   WAVE DIVIDERS — RESPONSIVE
   =================================== */
@media (max-width: 768px) {
    .category-grid-container::after {
        height: 35px;
    }

    .category-grid-container {
        padding-bottom: calc(var(--space-xl) + 35px);
    }

    .protocol-listing-container::before {
        height: 35px;
    }
}


/* Layout-table exemption (C5-1): vendor Introduction/Faculty pages wrap prose
   in a legacy single-cell table; undo the parameter-table data styling there.
   A real parameter table is never 1 row x 1 cell. */
.protocol-content table:has(> tbody > tr:only-child > td:only-child) td,
.protocol-content table:has(> tr:only-child > td:only-child) td {
    font-family: inherit !important;
    font-size: inherit !important;
    letter-spacing: normal !important;
    background: transparent !important;
    border-bottom: none !important;
}

/* Dark mode: legacy vendor pages (Introduction/Faculty/Disclaimer) carry
   inline dark text colors from the old site on wrapper sections and spans
   (#333, #32373c, #555). In dark mode every surface is dark, so lift these
   to the theme's light grays wherever they appear in content. Elements with
   their own inline colors (e.g. blue #0066cc headings) are unaffected. */
[data-theme="dark"] .protocol-content [style*="color: #333"],
[data-theme="dark"] .protocol-content [style*="color: #32373c"] {
    color: var(--gray-800) !important;
}
[data-theme="dark"] .protocol-content [style*="color: #555"] {
    color: var(--gray-600) !important;
}

/* R-J 2026-10-23: empty-state line for a vendor/field combination with no protocols */
.filter-empty { grid-column: 1 / -1; margin: 1rem 0; color: var(--text-secondary, #555); }

/* ==========================================================================
   LearnDash CME courses + evaluation form (2026-10-28)
   Course, lesson and quiz pages render inside .protocol-single (single.php).
   LearnDash prints its accent colors with !important, so overrides here need it too.
   ========================================================================== */

/* The Print/PDF row rule above also matched LearnDash's wrapper and pushed the course right */
.protocol-content > div.learndash:first-of-type {
    display: block;
    margin-bottom: 0;
}

.protocol-single .learndash-wrapper {
    color: var(--gray-800);
    font-size: 1rem;
}

/* Progress / status box and lesson breadcrumb bar */
.protocol-single .learndash-wrapper .ld-course-status,
.protocol-single .learndash-wrapper .ld-breadcrumbs {
    background: var(--gray-50) !important;
    border: 1px solid var(--gray-200);
    border-radius: 12px;
}
.protocol-single .learndash-wrapper .ld-progress .ld-progress-bar {
    background: var(--gray-200) !important;
}
.protocol-single .learndash-wrapper .ld-progress .ld-progress-heading .ld-progress-stats .ld-progress-steps {
    color: var(--gray-500) !important;
}
.protocol-single .learndash-wrapper .ld-status {
    border-radius: 999px;
}

/* Lesson rows */
.protocol-single .learndash-wrapper .ld-item-list .ld-item-list-item {
    background: var(--gray-50) !important;
    border: 1px solid var(--gray-200) !important;
    border-radius: 12px;
    box-shadow: none;
}
.protocol-single .learndash-wrapper .ld-item-list .ld-item-list-item .ld-item-name,
.protocol-single .learndash-wrapper .ld-item-list .ld-item-list-item .ld-item-title {
    color: var(--gray-800) !important;
}
.protocol-single .learndash-wrapper .ld-item-list .ld-item-list-item .ld-item-name:hover .ld-item-title {
    color: var(--primary-blue) !important;
}
.protocol-single .learndash-wrapper .ld-item-list .ld-item-list-item .ld-item-components,
.protocol-single .learndash-wrapper .ld-item-list .ld-item-list-item .ld-item-component {
    color: var(--gray-500) !important;
}
.protocol-single .learndash-wrapper .ld-item-list .ld-section-heading h2 {
    color: var(--gray-900);
}
.protocol-single .learndash-wrapper .ld-status-icon.ld-status-incomplete {
    background: transparent !important;
    border-color: var(--gray-300) !important;
}
.protocol-single .learndash-wrapper .ld-breadcrumbs a {
    color: var(--primary-blue) !important;
}
.protocol-single .learndash-wrapper .ld-lesson-status,
.protocol-single .learndash-wrapper .ld-topic-status,
.protocol-single .learndash-wrapper .ld-quiz-status {
    background: transparent !important;
}

/* Expanded lesson: quiz table */
.protocol-single .learndash-wrapper .ld-table-list .ld-table-list-items {
    background: var(--gray-50) !important;
    border-color: var(--gray-200) !important;
}
.protocol-single .learndash-wrapper .ld-table-list .ld-table-list-item {
    border-color: var(--gray-200) !important;
}
.protocol-single .learndash-wrapper .ld-table-list .ld-table-list-item-preview {
    color: var(--gray-800) !important;
}
.protocol-single .learndash-wrapper .ld-table-list .ld-table-list-footer {
    background: var(--gray-100) !important;
}

/* Buttons: LearnDash, quiz engine and Gravity Forms share the site's button look */
.protocol-single .learndash-wrapper .ld-button,
.protocol-single .learndash-wrapper .wpProQuiz_content .wpProQuiz_button,
.protocol-single .learndash-wrapper .wpProQuiz_content .wpProQuiz_button2,
.protocol-single .gform_wrapper .gform_button,
.protocol-single .gform_wrapper .gform_next_button,
.protocol-single .gform_wrapper .gform_previous_button {
    background: #0066cc !important; /* fixed: the dark-mode --primary-blue is too light under white text */
    color: #fff !important;
    border: 0 !important;
    border-radius: 8px !important;
    padding: 0.6rem 1.25rem !important;
    font-weight: 600 !important;
    font-size: 0.95rem !important;
    box-shadow: none !important;
    text-shadow: none !important;
}
.protocol-single .learndash-wrapper .ld-button:hover,
.protocol-single .learndash-wrapper .wpProQuiz_content .wpProQuiz_button:hover,
.protocol-single .learndash-wrapper .wpProQuiz_content .wpProQuiz_button2:hover,
.protocol-single .gform_wrapper .gform_button:hover,
.protocol-single .gform_wrapper .gform_next_button:hover {
    background: #004499 !important;
}
.protocol-single .gform_wrapper .gform_previous_button {
    background: var(--gray-100) !important;
    color: var(--gray-800) !important;
    border: 1px solid var(--gray-300) !important;
}
.protocol-single .learndash-wrapper .ld-content-actions {
    border-top: 1px solid var(--gray-200) !important;
}
.protocol-single .learndash-wrapper .ld-content-actions a:not(.ld-button) {
    color: var(--primary-blue) !important;
}

/* Quiz */
.protocol-single .learndash-wrapper .wpProQuiz_content {
    color: var(--gray-800);
}
.protocol-single .learndash-wrapper .wpProQuiz_content .wpProQuiz_questionListItem label {
    background: var(--gray-50) !important;
    border: 1px solid var(--gray-200) !important;
    border-radius: 8px;
    color: var(--gray-800) !important;
}
.protocol-single .learndash-wrapper .wpProQuiz_content .wpProQuiz_questionListItem label.is-selected {
    border-color: var(--primary-blue) !important;
}
.protocol-single .learndash-wrapper .wpProQuiz_content .wpProQuiz_header,
.protocol-single .learndash-wrapper .wpProQuiz_content .wpProQuiz_question_page,
.protocol-single .learndash-wrapper .wpProQuiz_content .wpProQuiz_results,
.protocol-single .learndash-wrapper .wpProQuiz_content .wpProQuiz_points,
.protocol-single .learndash-wrapper .wpProQuiz_content .wpProQuiz_resultsList {
    color: var(--gray-700) !important;
}
.protocol-single .learndash-wrapper .wpProQuiz_content .wpProQuiz_reviewDiv,
.protocol-single .learndash-wrapper .wpProQuiz_content .wpProQuiz_response {
    background: var(--gray-50) !important;
    border-color: var(--gray-200) !important;
    color: var(--gray-800) !important;
}

/* Evaluation form (Gravity Forms Orbital theme reads these variables) */
.protocol-single .gform_wrapper.gform-theme {
    --gf-color-primary: var(--primary-blue) !important;
    --gf-color-primary-contrast: #fff !important;
    --gf-color-in-ctrl: var(--gray-50) !important;
    --gf-color-in-ctrl-contrast: var(--gray-800) !important;
    --gf-color-in-ctrl-dark: var(--gray-500) !important;
    --gf-color-in-ctrl-light: var(--gray-200) !important;
    --gf-color-out-ctrl-dark: var(--gray-700) !important;
    --gf-color-out-ctrl-light: var(--gray-200) !important;
    --gf-ctrl-bg-color: var(--gray-50) !important;
    --gf-ctrl-border-color: var(--gray-300) !important;
    --gf-ctrl-label-color-primary: var(--gray-800) !important;
    --gf-ctrl-label-color-secondary: var(--gray-600) !important;
    --gf-ctrl-desc-color: var(--gray-600) !important;
    --gf-ctrl-placeholder-color: var(--gray-500) !important;
    color: var(--gray-800);
}
.protocol-single .gform_wrapper .gf_progressbar {
    background: var(--gray-200) !important;
}
.protocol-single .gform_wrapper .gform_page_footer {
    border-top: 1px solid var(--gray-200);
}

/* CME area (body.pf-cme): no protocol filter bar; My Courses (LearnDash profile) + Update My Details */
body.pf-cme .filter-toolbar {
    display: none !important;
}
.protocol-single .learndash-wrapper .ld-profile-summary,
.protocol-single .learndash-wrapper .ld-profile-stats .ld-profile-stat {
    color: var(--gray-800);
    border-color: var(--gray-200) !important;
}
.protocol-single .learndash-wrapper .ld-profile-stats .ld-profile-stat span {
    color: var(--gray-500);
}
.protocol-single .learndash-wrapper .ld-profile-summary .ld-profile-card .ld-profile-edit-link {
    color: var(--primary-blue) !important;
}
.protocol-single .learndash-wrapper .ld-item-list .ld-item-search .ld-item-search-wrapper,
.protocol-single .learndash-wrapper .ld-item-list .ld-item-list-item .ld-item-list-item-expanded .ld-progress {
    background: var(--gray-50) !important;
}
.cme-account-links {
    margin-top: var(--space-lg);
    color: var(--gray-600);
}
.cme-account-links a {
    color: var(--primary-blue);
    font-weight: 600;
}
.cme-account-content > div:first-of-type {
    display: block;
    margin-bottom: 0;
}
/* Icon-only LearnDash toggles (course expand arrows) keep their own look */
.protocol-single .learndash-wrapper .ld-button.ld-button-alternate {
    background: transparent !important;
    color: var(--primary-blue) !important;
    padding: 0 !important;
}