/* ============================================================
   FONTVERA — The Well of European Intelligence
   Professional legal intelligence interface
   ============================================================ */

/* --- Custom Properties --- */
:root {
    /* Base palette — dark authority */
    --bg-primary: #0A1628;
    --bg-secondary: #0F1D32;
    --bg-card: #13233D;
    --bg-card-hover: #182A4A;
    --bg-surface: #1A2F50;

    /* Text */
    --text-primary: #E8ECF1;
    --text-secondary: #8B9BB4;
    --text-muted: #5A6F8F;
    --text-accent: #C9A962;

    /* Accent — warm gold */
    --gold: #C9A962;
    --gold-dim: rgba(201, 169, 98, 0.15);
    --gold-glow: rgba(201, 169, 98, 0.08);

    /* Source badge colors */
    --badge-legislation: #2A4A8C;
    --badge-legislation-text: #7BA3E8;
    --badge-tenders: #8C6A2A;
    --badge-tenders-text: #D4AD5C;
    --badge-grants: #2A6B4A;
    --badge-grants-text: #5CC99A;
    --badge-court: #6B2A4A;
    --badge-court-text: #CC5C8A;
    --badge-patents: #3A5A6B;
    --badge-patents-text: #6BA8C4;
    --badge-standards: #4A2A6B;
    --badge-standards-text: #9A6BCC;
    --badge-statistics: #2A5A5A;
    --badge-statistics-text: #5CCCB8;
    --badge-labor: #4A5A2A;
    --badge-labor-text: #A8CC5C;
    --badge-companies: #4A4A5A;
    --badge-companies-text: #9A9ACC;
    --badge-other: #3A3A4A;
    --badge-other-text: #8A8A9A;

    /* Borders */
    --border-subtle: rgba(139, 155, 180, 0.1);
    --border-medium: rgba(139, 155, 180, 0.2);

    /* Typography */
    --font-serif: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
    --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Spacing */
    --max-width: 800px;
    --gutter: 24px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* --- App Layout --- */
.app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* --- Top Bar --- */
.topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0 var(--gutter);
    height: 64px;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.topbar.hidden {
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
}

.topbar-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 24px;
    height: 100%;
}

.topbar-logo {
    text-decoration: none;
    flex-shrink: 0;
}

.topbar-logo-text {
    font-family: var(--font-serif);
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: 0.15em;
    color: var(--text-accent);
}

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

.topbar-search-input {
    width: 100%;
    padding: 10px 16px;
    padding-right: 44px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    outline: none;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.topbar-search-input:focus {
    border-color: var(--gold);
    background: var(--bg-card);
}

.topbar-search-input::placeholder {
    color: var(--text-muted);
}

.kbd-hint {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--bg-card);
    border: 1px solid var(--border-medium);
    border-radius: 4px;
    padding: 1px 6px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    pointer-events: none;
}

/* --- Hero / Landing --- */
.hero {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--gutter);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.hero.hidden {
    display: none;
}

.hero-content {
    text-align: center;
    width: 100%;
    max-width: 640px;
}

.hero-title {
    font-family: var(--font-serif);
    font-weight: 600;
    font-size: 3.2rem;
    letter-spacing: 0.2em;
    color: var(--text-accent);
    margin-bottom: 8px;
}

.hero-subtitle {
    font-family: var(--font-serif);
    font-weight: 400;
    font-style: italic;
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 48px;
}

/* --- Search Input --- */
.search-container {
    position: relative;
    margin-bottom: 32px;
}

.hero-search-input {
    width: 100%;
    padding: 18px 56px 18px 24px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-medium);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1.05rem;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.hero-search-input:focus {
    border-color: var(--gold);
    box-shadow: 0 0 0 3px var(--gold-dim);
}

.hero-search-input::placeholder {
    color: var(--text-muted);
}

.search-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--gold);
    border: none;
    border-radius: 8px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--bg-primary);
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.search-btn:hover {
    background: #D4B56D;
    transform: translateY(-50%) scale(1.05);
}

/* --- Example Queries --- */
.example-queries {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 40px;
}

.example-query {
    background: var(--gold-glow);
    border: 1px solid var(--gold-dim);
    border-radius: 20px;
    padding: 8px 16px;
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.82rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.example-query:hover {
    background: var(--gold-dim);
    color: var(--text-accent);
    border-color: rgba(201, 169, 98, 0.3);
}

.hero-description {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--text-secondary);
    max-width: 520px;
    margin: 0 auto 40px;
    line-height: 1.6;
}

.hero-sources {
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 0.03em;
}

/* How it works */
.how-it-works {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-top: 56px;
    padding-top: 40px;
    border-top: 1px solid var(--border-subtle);
}

.how-step {
    text-align: center;
    max-width: 160px;
}

.how-icon {
    color: var(--text-accent);
    margin-bottom: 12px;
    opacity: 0.7;
}

.how-label {
    font-family: var(--font-serif);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 4px;
    letter-spacing: 0.03em;
}

.how-desc {
    font-size: 0.78rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* --- Results View --- */
.results {
    flex: 1;
    padding: 88px var(--gutter) 40px;
    transition: opacity var(--transition-base);
}

.results.hidden {
    display: none;
}

.results-inner {
    max-width: var(--max-width);
    margin: 0 auto;
}

/* --- Loading State --- */
.loading {
    padding: 48px 0;
    text-align: center;
}

.loading.hidden {
    display: none;
}

.loading-bar {
    width: 100%;
    height: 2px;
    background: var(--bg-card);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 20px;
    position: relative;
}

.loading-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: -40%;
    width: 40%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    animation: loadingSweep 1.4s ease-in-out infinite;
}

@keyframes loadingSweep {
    0% { left: -40%; }
    100% { left: 100%; }
}

.loading-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.loading-dots::after {
    content: '';
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0% { content: ''; }
    25% { content: '.'; }
    50% { content: '..'; }
    75% { content: '...'; }
}

/* --- Answer Section --- */
.answer-section {
    padding-bottom: 32px;
}

.answer-section.hidden {
    display: none;
}

.answer-text {
    font-size: 1rem;
    line-height: 1.75;
    color: var(--text-primary);
}

.answer-text p {
    margin-bottom: 12px;
}

.answer-text ul, .answer-text ol {
    margin-bottom: 12px;
    padding-left: 24px;
}

.answer-text li {
    margin-bottom: 6px;
}

.answer-text strong {
    color: var(--text-accent);
    font-weight: 600;
}

.answer-text code {
    font-family: var(--font-mono);
    font-size: 0.88em;
    background: var(--bg-card);
    padding: 2px 6px;
    border-radius: 4px;
}

.answer-meta {
    display: flex;
    gap: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-subtle);
    font-size: 0.78rem;
    color: var(--text-muted);
}

.answer-meta.hidden {
    display: none;
}

/* --- Sources --- */
.sources-section.hidden {
    display: none;
}

.sources-divider {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    color: var(--text-muted);
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.sources-divider::before,
.sources-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-subtle);
}

.sources-container {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* Source category group */
.source-group {
    opacity: 0;
    transform: translateY(12px);
    animation: fadeSlideUp var(--transition-slow) forwards;
}

.source-group:nth-child(2) { animation-delay: 80ms; }
.source-group:nth-child(3) { animation-delay: 160ms; }
.source-group:nth-child(4) { animation-delay: 240ms; }
.source-group:nth-child(5) { animation-delay: 320ms; }
.source-group:nth-child(6) { animation-delay: 400ms; }

@keyframes fadeSlideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.source-group-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.source-badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 4px;
    font-family: var(--font-sans);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.source-badge.legislation { background: var(--badge-legislation); color: var(--badge-legislation-text); }
.source-badge.tenders { background: var(--badge-tenders); color: var(--badge-tenders-text); }
.source-badge.grants { background: var(--badge-grants); color: var(--badge-grants-text); }
.source-badge.court_decisions { background: var(--badge-court); color: var(--badge-court-text); }
.source-badge.patents { background: var(--badge-patents); color: var(--badge-patents-text); }
.source-badge.standards { background: var(--badge-standards); color: var(--badge-standards-text); }
.source-badge.statistics { background: var(--badge-statistics); color: var(--badge-statistics-text); }
.source-badge.labor_market { background: var(--badge-labor); color: var(--badge-labor-text); }
.source-badge.companies { background: var(--badge-companies); color: var(--badge-companies-text); }
.source-badge.other { background: var(--badge-other); color: var(--badge-other-text); }

.source-group-count {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* Individual source card */
.source-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    padding: 18px 20px;
    margin-bottom: 8px;
    transition: background var(--transition-fast), border-color var(--transition-fast);
}

.source-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-medium);
}

.source-card-title {
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 6px;
    line-height: 1.4;
}

.source-card-ref {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-accent);
    margin-bottom: 8px;
    letter-spacing: 0.02em;
}

.source-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.source-card-meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.source-card-relevance {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 12px;
}

.source-card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.82rem;
    color: var(--text-accent);
    text-decoration: none;
    font-weight: 500;
    transition: opacity var(--transition-fast);
}

.source-card-link:hover {
    opacity: 0.8;
}

.source-card-link svg {
    width: 14px;
    height: 14px;
}

/* --- Opportunities --- */
.opportunities-section.hidden {
    display: none;
}

.opportunities-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.opportunity-card {
    background: var(--gold-glow);
    border: 1px solid var(--gold-dim);
    border-radius: 10px;
    padding: 16px 20px;
}

.opportunity-title {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-accent);
    margin-bottom: 4px;
}

.opportunity-desc {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* --- Error State --- */
.error-state {
    text-align: center;
    padding: 64px 0;
}

.error-state.hidden {
    display: none;
}

.error-title {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.error-message {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.error-retry {
    background: var(--gold);
    color: var(--bg-primary);
    border: none;
    border-radius: 8px;
    padding: 10px 24px;
    font-family: var(--font-sans);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.error-retry:hover {
    background: #D4B56D;
}

/* --- Empty State --- */
.empty-state {
    text-align: center;
    padding: 64px 0;
}

.empty-state.hidden {
    display: none;
}

.empty-title {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.empty-message {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* --- Search History --- */
.history {
    padding-top: 32px;
    border-top: 1px solid var(--border-subtle);
    margin-top: 40px;
}

.history.hidden {
    display: none;
}

.history-label {
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.history-items {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.history-item {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    padding: 6px 12px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.history-item:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--border-medium);
}

/* --- Footer --- */
.footer {
    padding: 32px var(--gutter);
    border-top: 1px solid var(--border-subtle);
    text-align: center;
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.footer-sovereignty {
    font-size: 0.82rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.footer-eu-flag {
    font-size: 1rem;
}

.footer-sources {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.footer-infra {
    font-size: 0.72rem;
    color: var(--text-muted);
    letter-spacing: 0.02em;
}

/* --- Typewriter cursor --- */
.typewriter-cursor {
    display: inline-block;
    width: 2px;
    height: 1.1em;
    background: var(--gold);
    margin-left: 2px;
    vertical-align: text-bottom;
    animation: blink 0.8s step-end infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}

/* --- Responsive --- */
@media (max-width: 768px) {
    :root {
        --gutter: 16px;
    }

    .hero-title {
        font-size: 2.2rem;
        letter-spacing: 0.15em;
    }

    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 36px;
    }

    .hero-search-input {
        font-size: 0.95rem;
        padding: 16px 52px 16px 18px;
    }

    .example-queries {
        gap: 6px;
    }

    .example-query {
        font-size: 0.75rem;
        padding: 6px 12px;
    }

    .topbar-inner {
        gap: 12px;
    }

    .topbar-logo-text {
        font-size: 0.95rem;
    }

    .source-card {
        padding: 14px 16px;
    }

    .source-card-meta {
        gap: 8px;
    }

    .answer-meta {
        flex-wrap: wrap;
        gap: 8px;
    }

    .footer-sovereignty {
        font-size: 0.78rem;
    }

    .kbd-hint {
        display: none;
    }

    .how-it-works {
        gap: 24px;
        margin-top: 40px;
        padding-top: 32px;
    }

    .hero-description {
        font-size: 0.88rem;
        margin-bottom: 32px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 0.9rem;
        margin-bottom: 28px;
    }

    .topbar-search-input {
        font-size: 0.82rem;
    }

    .results {
        padding-top: 76px;
    }

    .how-it-works {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }

    .how-step {
        max-width: 200px;
    }
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* --- Selection --- */
::selection {
    background: var(--gold-dim);
    color: var(--text-primary);
}