/* ============================================================
   Training Search Portal — Red Hat Theme
   ============================================================ */

/* Red Hat fonts */
@import url('https://fonts.googleapis.com/css2?family=Red+Hat+Display:wght@400;500;600;700&family=Red+Hat+Text:wght@400;500;600&display=swap');

/* ---- Design tokens ---- */
:root {
    --rh-red: #ee0000;
    --rh-red-dark: #a30000;
    --rh-red-light: #fce8e8;
    --rh-black: #151515;
    --rh-gray-900: #212427;
    --rh-gray-700: #4d5258;
    --rh-gray-500: #6a6e73;
    --rh-gray-300: #d2d2d2;
    --rh-gray-200: #e0e0e0;
    --rh-gray-100: #f0f0f0;
    --rh-white: #ffffff;
    --rh-blue: #0066cc;
    --rh-blue-dark: #004080;
    --rh-green: #3e8635;
    --rh-orange: #f0ab00;
    --rh-purple: #6753ac;

    --bg-primary: var(--rh-white);
    --bg-secondary: var(--rh-gray-100);
    --bg-card: var(--rh-white);
    --bg-card-hover: #fafafa;
    --bg-input: var(--rh-white);
    --bg-advanced: #f8f8f8;
    --text-primary: var(--rh-gray-900);
    --text-secondary: var(--rh-gray-700);
    --text-muted: var(--rh-gray-500);
    --border-color: var(--rh-gray-200);
    --border-focus: var(--rh-blue);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.1);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --font-display: 'Red Hat Display', 'Segoe UI', system-ui, sans-serif;
    --font-text: 'Red Hat Text', 'Segoe UI', system-ui, sans-serif;
    --transition: 0.2s ease;
}

/* ---- Dark mode ---- */
[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #111111;
    --bg-card: #242424;
    --bg-card-hover: #2a2a2a;
    --bg-input: #2a2a2a;
    --bg-advanced: #1e1e1e;
    --text-primary: #f0f0f0;
    --text-secondary: #b8bbbe;
    --text-muted: #8b8d90;
    --border-color: #3a3a3a;
    --border-focus: #4d94ff;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.4);
}

[data-theme="dark"] .card-header:hover { background: var(--bg-card-hover); }
[data-theme="dark"] mark { background: #4d3800; color: #ffd666; }

/* ---- Base reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-text);
    color: var(--text-primary);
    background: var(--bg-secondary);
    line-height: 1.5;
    min-height: 100vh;
}

a { color: var(--rh-blue); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---- Focus ring ---- */
:focus-visible {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
}

/* ---- App shell ---- */
.app-container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ---- Header ---- */
.app-header {
    background: var(--bg-primary);
    border-bottom: 3px solid var(--rh-red);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-inner {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.app-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    flex-shrink: 0;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--rh-red);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-family: var(--font-display);
    font-size: 16px;
}

.app-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    white-space: nowrap;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.resources-dropdown {
    position: relative;
}

.header-link {
    font-family: var(--font-text);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    background: none;
    border: none;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: var(--transition);
}
.header-link:hover {
    color: var(--rh-blue);
    background: var(--bg-secondary);
}

.resources-chevron {
    transition: transform 0.2s ease;
}
.header-link[aria-expanded="true"] .resources-chevron {
    transform: rotate(180deg);
}

.resources-panel {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 320px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    z-index: 200;
}
.resources-panel.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.btn-theme {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 6px 8px;
    cursor: pointer;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.btn-theme:hover { background: var(--bg-secondary); }

[data-theme="dark"] .theme-light { display: inline; }
[data-theme="dark"] .theme-dark { display: none; }
:root:not([data-theme="dark"]) .theme-light { display: none; }
:root:not([data-theme="dark"]) .theme-dark { display: inline; }

/* ---- Search section ---- */
.search-section {
    padding: 32px 0 8px;
}

.search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-input-wrap {
    position: relative;
    flex: 1;
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
    display: flex;
}

#search-input {
    width: 100%;
    padding: 14px 42px 14px 44px;
    font-family: var(--font-text);
    font-size: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 50px;
    background: var(--bg-input);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
#search-input:focus {
    border-color: var(--border-focus);
    box-shadow: var(--shadow-md), 0 0 0 3px rgba(0, 102, 204, 0.15);
}
#search-input::placeholder { color: var(--text-muted); }

#search-clear {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    padding: 4px;
    display: none;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}
#search-clear:hover { color: var(--text-primary); background: var(--bg-secondary); }

#advanced-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 12px 18px;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 50px;
    font-family: var(--font-text);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    white-space: nowrap;
    transition: var(--transition);
}
#advanced-toggle:hover {
    border-color: var(--rh-red);
    color: var(--rh-red);
}

/* ---- Keyboard hint ---- */
.search-hint {
    text-align: right;
    margin-top: 6px;
    font-size: 0.75rem;
    color: var(--text-muted);
}
.search-hint kbd {
    display: inline-block;
    padding: 1px 6px;
    font-family: var(--font-text);
    font-size: 0.7rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    box-shadow: 0 1px 0 var(--border-color);
}

/* ---- Advanced panel ---- */
.advanced-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, opacity 0.25s ease, margin 0.35s ease;
    opacity: 0;
    margin-top: 0;
}
.advanced-panel.open {
    max-height: 500px;
    opacity: 1;
    margin-top: 16px;
}

.advanced-inner {
    background: var(--bg-advanced);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px 24px;
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.filter-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.filter-group select {
    width: 100%;
    padding: 8px 12px;
    font-family: var(--font-text);
    font-size: 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-input);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
}
.filter-group select:focus { border-color: var(--border-focus); }

.filter-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    padding-top: 22px;
}

.filter-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--rh-red);
    cursor: pointer;
}

.filter-checkbox span {
    font-size: 0.875rem;
    color: var(--text-primary);
    cursor: pointer;
}

/* ---- Results bar ---- */
.results-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0 8px;
}

#result-count {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ---- Result cards ---- */
#results-container {
    padding-bottom: 40px;
}

.result-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 10px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition), border-color var(--transition);
    overflow: hidden;
}
.result-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--rh-gray-300);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    cursor: pointer;
    transition: background var(--transition);
    gap: 12px;
}
.card-header:hover { background: var(--bg-card-hover); }

.card-summary {
    flex: 1;
    min-width: 0;
}

.card-title {
    font-family: var(--font-display);
    font-size: 0.975rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
    line-height: 1.4;
}

.card-duration {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 2px;
}
.card-duration svg { flex-shrink: 0; }

.card-expand-icon {
    color: var(--text-muted);
    transition: transform 0.25s ease;
    flex-shrink: 0;
    display: flex;
}
.card-expand-icon.expanded { transform: rotate(180deg); }

/* ---- Card details ---- */
.card-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}
.card-details.expanded {
    max-height: 1200px;
}

.detail-grid {
    padding: 4px 20px 20px;
    border-top: 1px solid var(--border-color);
}

.detail-row {
    display: grid;
    grid-template-columns: 20px 120px 1fr;
    gap: 8px;
    padding: 10px 0;
    border-bottom: 1px solid var(--bg-secondary);
    align-items: start;
}
.detail-row:last-child { border-bottom: none; }

.detail-icon {
    color: var(--text-muted);
    display: flex;
    align-items: center;
    padding-top: 1px;
}

.detail-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.detail-value {
    font-size: 0.9rem;
    color: var(--text-primary);
    word-break: break-word;
}

.detail-description .detail-value {
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.detail-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--rh-blue);
    font-weight: 500;
}
.detail-link:hover { color: var(--rh-blue-dark); }

.partner-link {
    color: var(--rh-purple);
}
.partner-link:hover { color: #523f8a; }

/* ---- Status badges ---- */
.status-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}
.status-published { background: #e7f5e3; color: #1e7a10; }
.status-retired { background: #fce8e8; color: #a30000; }
.status-under-development { background: #fff3cd; color: #856404; }
.status-in-planning { background: #e8f0fe; color: #1a56db; }

[data-theme="dark"] .status-published { background: #1a3318; color: #6ec96e; }
[data-theme="dark"] .status-retired { background: #3a1111; color: #f08080; }
[data-theme="dark"] .status-under-development { background: #3a3011; color: #f0c040; }
[data-theme="dark"] .status-in-planning { background: #112244; color: #80b0f0; }

/* ---- Copy button ---- */
.btn-copy {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 3px 5px;
    cursor: pointer;
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    transition: var(--transition);
    vertical-align: middle;
    margin-left: 4px;
}
.btn-copy:hover { background: var(--bg-secondary); color: var(--text-primary); }
.btn-copy.copied { color: var(--rh-green); border-color: var(--rh-green); }

/* ---- Mark / highlight ---- */
mark {
    background: #fff3cd;
    color: inherit;
    padding: 0 2px;
    border-radius: 2px;
}

/* ---- States ---- */
.loading-state, .error-state, .empty-state, .welcome-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border-color);
    border-top-color: var(--rh-red);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.error-state .error-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--rh-red-light);
    color: var(--rh-red);
    font-size: 24px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.btn-retry {
    margin-top: 16px;
    padding: 8px 24px;
    background: var(--rh-red);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-text);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.btn-retry:hover { background: var(--rh-red-dark); }

.welcome-state { padding: 80px 20px; }
.welcome-icon, .empty-icon {
    color: var(--rh-gray-300);
    margin-bottom: 12px;
}
.welcome-icon svg, .empty-icon svg { width: 48px; height: 48px; }
.welcome-state p { font-size: 1rem; }
.welcome-hint { margin-top: 8px; font-size: 0.9rem !important; }

.hint-link {
    background: none;
    border: none;
    color: var(--rh-blue);
    cursor: pointer;
    font-family: var(--font-text);
    font-size: 0.9rem;
    text-decoration: underline;
    padding: 0;
}
.hint-link:hover { color: var(--rh-blue-dark); }

/* ---- Resource cards ---- */
.resource-card {
    padding: 12px;
    border-radius: var(--radius-sm);
    transition: background var(--transition);
}
.resource-card:hover {
    background: var(--bg-secondary);
}

.resource-title {
    font-family: var(--font-display);
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.resource-desc {
    font-size: 0.78rem;
    line-height: 1.45;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.resource-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--rh-blue);
}
.resource-link:hover { color: var(--rh-blue-dark); }

.resource-link--cta {
    color: var(--rh-red);
}
.resource-link--cta:hover { color: var(--rh-red-dark); }

/* ---- Print ---- */
@media print {
    .app-header, .search-section, .results-bar { display: none; }
    .result-card { break-inside: avoid; box-shadow: none; border: 1px solid #ccc; }
    .card-details { max-height: none !important; }
    .card-expand-icon { display: none; }
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .header-inner { flex-wrap: wrap; }
    .app-title { font-size: 1rem; }
    .search-wrapper { flex-direction: column; gap: 8px; }
    #advanced-toggle { width: 100%; justify-content: center; }
    .filter-grid { grid-template-columns: 1fr; }
    .detail-row {
        grid-template-columns: 20px 1fr;
        gap: 4px;
    }
    .detail-label {
        grid-column: 2;
        margin-bottom: -2px;
    }
    .detail-value {
        grid-column: 2;
    }
    .card-header { padding: 14px 16px; }
    .detail-grid { padding: 4px 16px 16px; }
    .resources-panel { width: 280px; }
}

@media (max-width: 480px) {
    .app-container { padding: 0 12px; }
    .search-section { padding-top: 20px; }
    #search-input { padding: 12px 38px 12px 40px; font-size: 0.95rem; }
    .card-title { font-size: 0.9rem; }
    .logo-icon { width: 28px; height: 28px; font-size: 14px; }
}

/* ---- High contrast support ---- */
@media (forced-colors: active) {
    .result-card { border: 2px solid ButtonText; }
    .status-badge { border: 1px solid ButtonText; }
    mark { background: Highlight; color: HighlightText; }
}