/* ================================================
   HoboAudio — Public Stylesheet
   Mirrors hobo-img design system, adapted for audio
   ================================================ */

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

:root {
    --bg-primary:   #1a1a22;
    --bg-secondary: #22222e;
    --bg-tertiary:  #2a2a38;
    --bg-card:      #262633;
    --text-primary: #e8e6e3;
    --text-secondary: #9e9bab;
    --text-muted:   #6b687a;
    --accent:       #c0965c;
    --accent-hover: var(--accent-light, #d4aa70);
    --accent-glow:  rgba(192, 150, 92, .25);
    --success:      #5cb85c;
    --error:        var(--danger, #d9534f);
    --border:       #33334a;
    --radius:       10px;
    --radius-sm:    6px;
    --radius-lg:    16px;
    --shadow:       0 4px 24px rgba(0,0,0,.35);
    --font:         'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono:    'JetBrains Mono', 'Fira Code', monospace;
    --transition:   .2s ease;
    --max-width:    860px;
}

html { scroll-behavior: smooth; }

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

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

/* ---------- App Container ---------- */
#app {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px 60px;
    flex: 1;
}

/* ---------- Hero ---------- */
.hero {
    text-align: center;
    padding: 48px 0 32px;
}
.hero-icon {
    font-size: 3rem;
    color: var(--accent);
    margin-bottom: 12px;
    filter: drop-shadow(0 0 20px var(--accent-glow));
}
.hero h1 {
    font-size: 2.4rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 6px;
}
.hero-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 300;
}

/* ---------- Tool Tabs ---------- */
.tool-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: center;
    padding: 0 0 28px;
}
.tool-tab {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-family: var(--font);
    font-size: .82rem;
    font-weight: 500;
    padding: 7px 14px;
    border-radius: 60px;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}
.tool-tab i { margin-right: 4px; font-size: .8rem; }
.tool-tab:hover { color: var(--text-primary); border-color: var(--accent); }
.tool-tab.active {
    background: var(--accent);
    color: #111;
    border-color: var(--accent);
    font-weight: 600;
}

/* ---------- Upload Zone ---------- */
.upload-zone {
    background: var(--bg-secondary);
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 24px;
    text-align: center;
    transition: var(--transition);
    margin-bottom: 24px;
}
.upload-zone.drag-over {
    border-color: var(--accent);
    background: rgba(192, 150, 92, .06);
}
.upload-icon {
    font-size: 2.5rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}
.upload-text {
    font-size: 1.15rem;
    font-weight: 500;
    margin-bottom: 6px;
}
.upload-hint {
    color: var(--text-muted);
    font-size: .85rem;
    margin-bottom: 20px;
}
.upload-info {
    display: flex;
    align-items: center;
    gap: 16px;
    text-align: left;
}
.file-icon {
    font-size: 2rem;
    color: var(--accent);
    flex-shrink: 0;
}
.file-details {
    flex: 1;
    min-width: 0;
}
.file-details .file-name {
    font-weight: 600;
    font-size: 1rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.file-details .file-meta {
    color: var(--text-muted);
    font-size: .85rem;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font);
    font-size: .95rem;
    font-weight: 600;
    padding: 10px 22px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-primary {
    background: var(--accent);
    color: #111;
}
.btn-primary:hover:not(:disabled) {
    background: var(--accent-hover);
    box-shadow: 0 0 18px var(--accent-glow);
}
.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--accent); }
.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    padding: 8px 14px;
    font-size: .85rem;
}
.btn-ghost:hover { color: var(--error); }
.btn-lg { font-size: 1.05rem; padding: 14px 32px; border-radius: var(--radius); }

/* ---------- Options Panel ---------- */
.options-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    margin-bottom: 24px;
}
.option-group { animation: fadeIn .25s ease; }
.option-label {
    display: block;
    font-size: .9rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}
.option-label span {
    color: var(--accent);
    font-family: var(--font-mono);
    font-weight: 500;
}
.option-hint {
    color: var(--text-muted);
    font-size: .82rem;
    margin-top: 8px;
}
.option-info {
    color: var(--text-secondary);
    font-size: .95rem;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}
.option-info i { color: var(--accent); margin-right: 6px; }

/* Format / Preset Grid */
.format-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}
.format-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-family: var(--font);
    font-size: .85rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}
.format-btn:hover { color: var(--text-primary); border-color: var(--accent); }
.format-btn.active {
    background: var(--accent);
    color: #111;
    border-color: var(--accent);
    font-weight: 600;
}

/* Preset chips (pitch, speed) */
.pitch-presets, .speed-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}
.preset-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: .8rem;
    padding: 5px 12px;
    border-radius: 60px;
    cursor: pointer;
    transition: var(--transition);
}
.preset-btn:hover { border-color: var(--accent); color: var(--accent); }

/* Time inputs row */
.time-inputs {
    display: flex;
    align-items: flex-end;
    gap: 12px;
}
.time-field { flex: 1; }
.time-arrow {
    color: var(--text-muted);
    font-size: 1rem;
    padding-bottom: 10px;
}

/* Text/Number inputs */
.text-input, .num-input {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: .95rem;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    outline: none;
    transition: var(--transition);
}
.text-input:focus, .num-input:focus { border-color: var(--accent); }

/* Slider */
.slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    outline: none;
    margin-bottom: 12px;
}
.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    border: 2px solid var(--bg-primary);
    box-shadow: 0 0 8px var(--accent-glow);
}
.slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    border: 2px solid var(--bg-primary);
}

/* Process button inside options panel */
#process-btn {
    width: 100%;
    margin-top: 20px;
    justify-content: center;
}

/* ---------- Processing Spinner ---------- */
.processing {
    text-align: center;
    padding: 60px 0;
    color: var(--text-secondary);
}
.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin .8s linear infinite;
    margin: 0 auto 16px;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ---------- Result Panel ---------- */
.result-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--success);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    margin-bottom: 24px;
    animation: fadeIn .35s ease;
}
.result-panel h2 {
    color: var(--success);
    margin-bottom: 16px;
    font-size: 1.3rem;
}
.result-player {
    margin-bottom: 16px;
}
.result-player audio {
    width: 100%;
    max-width: 500px;
    border-radius: var(--radius);
    outline: none;
}
.result-info {
    color: var(--text-muted);
    font-size: .85rem;
    font-family: var(--font-mono);
    margin-bottom: 20px;
}
.result-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}
.result-waveform {
    max-width: 100%;
    border-radius: var(--radius);
    margin-bottom: 12px;
}

/* ---------- Subdomain Grid ---------- */
.subdomains {
    padding-top: 32px;
}
.subdomains h2 {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 6px;
}
.subdomains-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: .9rem;
    margin-bottom: 24px;
}
.subdomain-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
}
.subdomain-card {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    text-decoration: none;
    transition: var(--transition);
}
.subdomain-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}
.subdomain-card .card-icon {
    font-size: 1.3rem;
    color: var(--accent);
    width: 36px;
    text-align: center;
    flex-shrink: 0;
}
.subdomain-card .card-info {
    min-width: 0;
}
.subdomain-card .card-name {
    font-weight: 600;
    font-size: .92rem;
    color: var(--text-primary);
}
.subdomain-card .card-desc {
    color: var(--text-muted);
    font-size: .78rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Category headers in grid */
.subdomain-grid .cat-header {
    grid-column: 1 / -1;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-secondary);
    padding: 12px 0 2px;
    border-bottom: 1px solid var(--border);
    margin-top: 8px;
}
.subdomain-grid .cat-header:first-child { margin-top: 0; }
.subdomain-grid .cat-header i { color: var(--accent); margin-right: 6px; }

/* ---------- Cross Links ---------- */
.cross-links {
    padding-top: 20px;
}
.cross-links h2 {
    text-align: center;
    font-size: 1.3rem;
    margin-bottom: 18px;
}
.cross-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
}
.cross-card {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px;
    text-decoration: none;
    transition: var(--transition);
}
.cross-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.cross-icon { font-size: 1.4rem; color: var(--accent); width: 36px; text-align: center; flex-shrink: 0; }
.cross-info { display: flex; flex-direction: column; min-width: 0; }
.cross-name { font-weight: 600; color: var(--text-primary); font-size: .9rem; }
.cross-desc { color: var(--text-muted); font-size: .78rem; }

/* ---------- Footer ---------- */
.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: .85rem;
    margin-top: auto;
}
.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}
.footer-inner i { color: var(--accent); }
.footer-links { display: flex; gap: 16px; }
.footer-links a { color: var(--text-muted); }
.footer-links a:hover { color: var(--accent); }

/* ---------- Error/Toast ---------- */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 24px;
    font-size: .9rem;
    box-shadow: var(--shadow);
    z-index: 9999;
    animation: slideUp .3s ease;
}
.toast.error { border-color: var(--error); }
.toast.success { border-color: var(--success); }
@keyframes slideUp {
    from { opacity: 0; transform: translate(-50%, 12px); }
    to   { opacity: 1; transform: translate(-50%, 0); }
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
    .hero { padding: 32px 0 24px; }
    .hero h1 { font-size: 1.8rem; }
    .hero-icon { font-size: 2.2rem; }
    .tool-tabs { gap: 4px; }
    .tool-tab { font-size: .75rem; padding: 6px 10px; }
    .upload-zone { padding: 28px 16px; }
    .options-panel { padding: 20px 16px; }
    .format-grid { gap: 6px; }
    .format-btn { padding: 6px 10px; font-size: .8rem; }
    .time-inputs { flex-direction: column; }
    .time-arrow { display: none; }
    .subdomain-grid { grid-template-columns: 1fr; }
    .cross-grid { grid-template-columns: 1fr; }
    .footer-inner { flex-direction: column; text-align: center; }
    .result-actions { flex-direction: column; align-items: center; }
}