/* =============================================
   Winyard AI — Wisdom Search Engine
   Design tokens match tonywinyard.com
   ============================================= */

:root {
    --bg-primary: #0a0e27;
    --bg-secondary: #111631;
    --bg-card: rgba(17, 22, 49, 0.8);
    --bg-card-hover: rgba(17, 22, 49, 0.95);
    --accent-cyan: #00d9ff;
    --accent-purple: #a855f7;
    --accent-hot: #ff0080;
    --accent-success: #34d399;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --gradient-accent: linear-gradient(135deg, #00d9ff, #a855f7);
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow-glow: 0 0 20px rgba(0, 217, 255, 0.1);
    --shadow-glow-strong: 0 0 30px rgba(0, 217, 255, 0.15);
    --transition: 200ms ease-in-out;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

::selection {
    background: var(--accent-cyan);
    color: var(--bg-primary);
}

/* Noise texture overlay (matches main site) */
.noise {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.04;
    background: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ---- Header ---- */
header {
    text-align: center;
    padding: 3rem 0 2rem;
    animation: fadeIn 0.6s ease-out;
}

header h1 {
    font-size: 2.25rem;
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

/* ---- Search ---- */
main {
    flex: 1;
}

.search-box {
    display: flex;
    gap: 0;
    background: var(--bg-secondary);
    border: 1px solid rgba(0, 217, 255, 0.12);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color var(--transition), box-shadow var(--transition);
    animation: fadeIn 0.6s ease-out 0.1s both;
}

.search-box:focus-within {
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-glow);
}

#query-input {
    flex: 1;
    background: transparent;
    border: none;
    padding: 1rem 1.25rem;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--font-sans);
    outline: none;
}

#query-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.5;
}

/* Hide the native search cancel button */
#query-input::-webkit-search-cancel-button {
    display: none;
}

#search-btn {
    background: var(--gradient-accent);
    border: none;
    padding: 1rem 1.25rem;
    color: white;
    cursor: pointer;
    transition: opacity var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

#search-btn:hover {
    opacity: 0.85;
}

#search-btn:active {
    opacity: 0.7;
}

/* ---- Suggestions ---- */
.suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
    justify-content: center;
    animation: fadeIn 0.6s ease-out 0.2s both;
}

.suggestion {
    background: rgba(0, 217, 255, 0.06);
    border: 1px solid rgba(0, 217, 255, 0.12);
    border-radius: 2rem;
    padding: 0.4rem 1rem;
    color: var(--accent-cyan);
    font-size: 0.85rem;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all var(--transition);
}

.suggestion:hover {
    background: rgba(0, 217, 255, 0.12);
    border-color: rgba(0, 217, 255, 0.3);
    transform: translateY(-1px);
}

.suggestion:active {
    transform: translateY(0);
}

/* ---- Loading ---- */
.loading {
    text-align: center;
    padding: 3rem 0;
    animation: fadeIn 0.3s ease-out;
}

.spinner {
    width: 28px;
    height: 28px;
    border: 2.5px solid rgba(0, 217, 255, 0.15);
    border-top-color: var(--accent-cyan);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

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

/* ---- Response ---- */
.response {
    margin-top: 2rem;
    animation: slideUp 0.4s ease-out;
}

.answer-text {
    padding: 1.5rem;
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(0, 217, 255, 0.08);
    border-radius: var(--radius);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.answer-text p {
    margin-bottom: 0.75rem;
}

.answer-text p:last-child {
    margin-bottom: 0;
}

/* Sources heading */
.sources-heading {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    padding-left: 0.25rem;
}

/* Source cards */
.source-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(168, 85, 247, 0.12);
    border-radius: var(--radius-sm);
    padding: 1.25rem;
    margin-bottom: 0.75rem;
    transition: border-color var(--transition), transform var(--transition);
    animation: slideUp 0.4s ease-out both;
}

.source-card:nth-child(2) { animation-delay: 0.05s; }
.source-card:nth-child(3) { animation-delay: 0.1s; }
.source-card:nth-child(4) { animation-delay: 0.15s; }
.source-card:nth-child(5) { animation-delay: 0.2s; }

.source-card:hover {
    border-color: rgba(168, 85, 247, 0.25);
    transform: translateY(-1px);
}

.source-card blockquote {
    color: var(--text-primary);
    font-style: italic;
    margin-bottom: 0.75rem;
    padding-left: 1rem;
    border-left: 2px solid var(--accent-purple);
    line-height: 1.7;
}

.source-card cite {
    color: var(--accent-cyan);
    font-size: 0.85rem;
    font-style: normal;
    font-weight: 500;
}

/* Topic badges */
.topic-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-top: 0.6rem;
}

.topic-badge {
    background: rgba(168, 85, 247, 0.08);
    border: 1px solid rgba(168, 85, 247, 0.15);
    border-radius: 1rem;
    padding: 0.2rem 0.65rem;
    font-size: 0.75rem;
    color: var(--accent-purple);
    cursor: pointer;
    transition: all var(--transition);
}

.topic-badge:hover {
    background: rgba(168, 85, 247, 0.18);
    border-color: rgba(168, 85, 247, 0.3);
}

/* Related topics row */
.related-topics {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem;
    margin-top: 1.25rem;
    padding-top: 1.25rem;
    border-top: 1px solid rgba(0, 217, 255, 0.06);
    justify-content: center;
    animation: fadeIn 0.5s ease-out 0.3s both;
}

.related-label {
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-right: 0.25rem;
}

/* "Back to search" link after results */
.back-to-search {
    display: inline-block;
    margin-top: 1.25rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: color var(--transition);
    text-align: center;
    width: 100%;
}

.back-to-search:hover {
    color: var(--accent-cyan);
}

/* ---- Random quote ---- */
.random-quote {
    text-align: center;
    padding: 3rem 2rem;
    margin-top: 2rem;
    animation: fadeIn 0.8s ease-out 0.3s both;
}

.random-quote-inner {
    position: relative;
    display: inline-block;
    max-width: 600px;
}

.random-quote blockquote {
    font-size: 1.15rem;
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    line-height: 1.7;
}

.random-quote cite {
    color: var(--accent-cyan);
    font-size: 0.9rem;
    font-style: normal;
    font-weight: 500;
}

.new-quote-btn {
    background: none;
    border: 1px solid rgba(0, 217, 255, 0.12);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    cursor: pointer;
    margin-left: 0.75rem;
    vertical-align: middle;
    transition: all var(--transition);
}

.new-quote-btn:hover {
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
    transform: rotate(180deg);
}

/* ---- Topic browser ---- */
.topic-browser {
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 217, 255, 0.06);
    animation: fadeIn 0.6s ease-out;
}

.topic-browser h2 {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    text-align: center;
}

.topic-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    justify-content: center;
}

/* ---- Error state ---- */
.error-card {
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid rgba(255, 0, 128, 0.2);
    border-radius: var(--radius);
}

.error-card p:first-child {
    margin-bottom: 0.5rem;
}

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

/* ---- Footer ---- */
footer {
    text-align: center;
    padding: 2rem 0 1rem;
    border-top: 1px solid rgba(0, 217, 255, 0.06);
    margin-top: auto;
}

.stats {
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
    font-variant-numeric: tabular-nums;
}

footer p {
    color: var(--text-secondary);
    font-size: 0.78rem;
}

footer a {
    color: var(--accent-cyan);
    text-decoration: none;
    transition: opacity var(--transition);
}

footer a:hover {
    opacity: 0.8;
}

/* ---- Animations ---- */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.2);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 217, 255, 0.3);
}

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

#query-input:focus-visible {
    outline: none; /* Handled by .search-box:focus-within */
}

/* ---- Utilities ---- */
.hidden {
    display: none !important;
}

/* ---- Responsive ---- */
@media (max-width: 640px) {
    header {
        padding: 2rem 0 1.5rem;
    }

    header h1 {
        font-size: 1.75rem;
    }

    .subtitle {
        font-size: 0.95rem;
    }

    .container {
        padding: 1rem;
    }

    .suggestions {
        gap: 0.35rem;
    }

    .suggestion {
        font-size: 0.8rem;
        padding: 0.35rem 0.85rem;
    }

    .random-quote {
        padding: 2rem 1rem;
    }

    .random-quote blockquote {
        font-size: 1.05rem;
    }

    .source-card {
        padding: 1rem;
    }

    .answer-text {
        padding: 1.25rem;
    }
}

@media (max-width: 400px) {
    header h1 {
        font-size: 1.5rem;
    }

    .suggestion {
        font-size: 0.75rem;
        padding: 0.3rem 0.7rem;
    }
}