:root {
    --bg-primary: #0f0f1a;
    --bg-card: rgba(255, 255, 255, 0.05);
    --glass-blur: 12px;
    --accent: #7c3aed;
    --accent-light: #a78bfa;
    --accent-glow: rgba(124, 58, 237, 0.25);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border: rgba(255, 255, 255, 0.1);
    --success: #22c55e;
    --warning: #fbbf24;
    --error: #ef4444;
}

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

/* ── Topnav ── */
.ph-topnav{display:flex;align-items:center;gap:10px;padding:8px 14px;background:rgba(15,15,26,0.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,0.08);position:fixed;top:0;left:0;right:0;z-index:1000;height:48px;flex-shrink:0}
.ph-topnav a{color:#94a3b8;text-decoration:none;font-size:18px;line-height:1;display:flex;align-items:center;transition:color .2s}
.ph-topnav a:hover{color:#a78bfa}
.ph-topnav img{width:26px;height:26px;border-radius:6px;flex-shrink:0}
.ph-topnav .brand{font-size:14px;font-weight:700;color:#e2e8f0;flex:1}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    background-image:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(124,58,237,0.15), transparent),
        radial-gradient(ellipse 60% 40% at 80% 100%, rgba(99,102,241,0.08), transparent);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 12px;
    padding-top: 56px;
}

.container {
    max-width: 860px;
    margin: 0 auto;
    padding: 0 16px 60px;
}

/* ── Banner ── */
.ph-banner {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: linear-gradient(135deg, rgba(124,58,237,0.12), rgba(99,102,241,0.06));
    border: 1px solid rgba(124,58,237,0.2);
    border-radius: 16px;
    margin-bottom: 20px;
    position: relative;
    overflow: hidden;
}
.ph-banner::before {
    content: '';
    position: absolute;
    top: -40%; left: -20%;
    width: 60%; height: 180%;
    background: radial-gradient(circle, rgba(124,58,237,0.08), transparent 70%);
    pointer-events: none;
}
.ph-banner-back{color:var(--text-secondary);text-decoration:none;font-size:18px;line-height:1;transition:color .2s;flex-shrink:0}
.ph-banner-back:hover{color:var(--accent-light)}
.ph-banner-logo {
    width: 48px; height: 48px; flex-shrink: 0;
    background: linear-gradient(135deg, var(--accent), #6366f1);
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 4px 20px rgba(124,58,237,0.3);
}
.ph-banner-text { flex: 1; min-width: 0; position: relative; }
.ph-banner-text h1 {
    font-size: 1.2rem; font-weight: 700;
    background: linear-gradient(90deg, #f8fafc, var(--accent-light));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text; margin-bottom: 2px;
}
.ph-banner-text p { font-size: 0.82rem; color: var(--text-secondary); }

/* ── Steps indicator ── */
.steps-bar {
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
    padding: 6px;
    background: rgba(255,255,255,0.03);
    border-radius: 12px;
    border: 1px solid var(--border);
}
.step-item {
    flex: 1;
    text-align: center;
    padding: 8px 4px;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all 0.3s;
    position: relative;
}
.step-item.active {
    background: rgba(124,58,237,0.15);
    color: var(--accent-light);
    box-shadow: 0 0 12px rgba(124,58,237,0.15);
}
.step-item.done {
    color: var(--success);
}
.step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px; height: 20px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    font-size: 0.7rem;
    margin-right: 4px;
    vertical-align: middle;
}
.step-item.active .step-num {
    background: var(--accent);
    color: #fff;
}
.step-item.done .step-num {
    background: var(--success);
    color: #fff;
}

/* ── Groq banner ── */
.groq-banner {
    margin-bottom: 16px;
    padding: 10px 14px;
    border-radius: 10px;
    font-size: 0.82rem;
    display: flex;
    align-items: center;
    gap: 8px;
}
.groq-banner.ok {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.2);
    color: var(--success);
}
.groq-banner.err {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--error);
}
.groq-banner a { color: var(--accent-light); text-decoration: underline; }

/* ── Cards ── */
.card {
    background: linear-gradient(145deg, rgba(26,26,46,0.8), rgba(15,15,26,0.6));
    backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 16px;
    animation: fadeUp 0.4s ease-out both;
    transition: border-color 0.3s;
}
.card:hover {
    border-color: rgba(124,58,237,0.2);
}
.card h2 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.card h2::before {
    content: '';
    width: 4px; height: 18px;
    background: linear-gradient(180deg, var(--accent), var(--accent-light));
    border-radius: 2px;
    flex-shrink: 0;
}

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

/* ── Drop zone ── */
.drop-zone {
    border: 2px dashed rgba(124,58,237,0.25);
    border-radius: 14px;
    padding: 48px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    background: rgba(124,58,237,0.03);
    position: relative;
}
.drop-zone:hover, .drop-zone.drag-over {
    border-color: var(--accent);
    background: rgba(124, 58, 237, 0.08);
    box-shadow: 0 0 30px rgba(124, 58, 237, 0.1);
}
.drop-icon {
    font-size: 3rem;
    margin-bottom: 12px;
    display: block;
    filter: drop-shadow(0 4px 12px rgba(124,58,237,0.3));
}
.drop-zone p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.browse-link {
    color: var(--accent-light);
    text-decoration: underline;
    cursor: pointer;
}
.drop-hint {
    font-size: 0.75rem !important;
    margin-top: 8px;
    opacity: 0.6;
}

/* ── File info ── */
.file-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(124,58,237,0.06);
    border: 1px solid rgba(124,58,237,0.15);
    border-radius: 10px;
    flex-wrap: wrap;
}
.file-name {
    font-weight: 600;
    font-size: 0.9rem;
    flex: 1;
    min-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.file-size, .file-duration {
    color: var(--text-secondary);
    font-size: 0.8rem;
    padding: 3px 8px;
    background: rgba(255,255,255,0.05);
    border-radius: 6px;
}

/* ── Settings ── */
.settings-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 0.9rem;
}
.settings-row label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}
.settings-row select {
    padding: 8px 12px;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
}
.settings-row select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(124,58,237,0.15);
}
.settings-row input[type="checkbox"] {
    accent-color: var(--accent);
    width: 16px;
    height: 16px;
}

/* ── Buttons ── */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent), #6366f1);
    color: #fff;
    border: none;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 8px;
    box-shadow: 0 4px 16px rgba(124, 58, 237, 0.25);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(124, 58, 237, 0.4);
}
.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    border: 1px solid var(--border);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}
.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(124,58,237,0.3);
}
.btn-sm {
    padding: 6px 12px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    border: 1px solid var(--border);
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}
.btn-sm:hover {
    background: rgba(124, 58, 237, 0.12);
    border-color: var(--accent);
    color: var(--accent-light);
}

/* ── Progress ── */
.progress-bar-container {
    height: 8px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 10px;
}
.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), #6366f1, var(--accent-light));
    background-size: 200% 100%;
    animation: shimmer 2s linear infinite;
    border-radius: 4px;
    transition: width 0.3s ease;
}
@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}
.progress-text {
    color: var(--text-secondary);
    font-size: 0.82rem;
}

/* ── Result blocks ── */
.result-block {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}
.result-block:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}
.result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
    flex-wrap: wrap;
    gap: 10px;
}
.result-header h2 {
    margin-bottom: 0;
    font-size: 1rem;
}
.result-actions {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}
.search-input {
    padding: 6px 12px;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-size: 0.8rem;
    outline: none;
    width: 180px;
    transition: border-color 0.2s;
}
.search-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(124,58,237,0.15);
}

/* ── Transcript ── */
.transcript-content {
    max-height: 500px;
    overflow-y: auto;
    padding: 16px;
    background: rgba(0, 0, 0, 0.25);
    border-radius: 12px;
    border: 1px solid var(--border);
    font-size: 0.88rem;
    line-height: 1.7;
    color: var(--text-secondary);
}
.transcript-content:focus {
    outline: 1px solid var(--accent);
}
.transcript-line {
    display: flex;
    gap: 12px;
    padding: 6px 8px;
    border-radius: 6px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    transition: background 0.15s;
}
.transcript-line:hover {
    background: rgba(124, 58, 237, 0.08);
}
.transcript-time {
    color: var(--accent-light);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    cursor: pointer;
    white-space: nowrap;
    min-width: 55px;
    user-select: none;
    padding: 2px 6px;
    background: rgba(124,58,237,0.08);
    border-radius: 4px;
    text-align: center;
    height: fit-content;
}
.transcript-time:hover {
    background: rgba(124,58,237,0.2);
}
.transcript-text { flex: 1; }
.transcript-text mark {
    background: rgba(251, 191, 36, 0.3);
    color: var(--text-primary);
    border-radius: 2px;
    padding: 0 2px;
}

/* ── Chapters ── */
.chapters-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.chapter-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: rgba(124,58,237,0.05);
    border: 1px solid rgba(124,58,237,0.1);
    border-radius: 10px;
    transition: all 0.2s;
}
.chapter-item:hover {
    background: rgba(124, 58, 237, 0.1);
    border-color: rgba(124,58,237,0.2);
}
.chapter-time {
    color: var(--accent-light);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.82rem;
    cursor: pointer;
    white-space: nowrap;
    min-width: 55px;
    padding: 2px 6px;
    background: rgba(124,58,237,0.08);
    border-radius: 4px;
    text-align: center;
}
.chapter-time:hover {
    background: rgba(124,58,237,0.2);
}
.chapter-title {
    flex: 1;
    font-weight: 500;
    font-size: 0.88rem;
    background: transparent;
    border: none;
    color: var(--text-primary);
    outline: none;
    padding: 4px 8px;
    border-radius: 6px;
    transition: background 0.2s;
}
.chapter-title:focus {
    background: rgba(0, 0, 0, 0.3);
}
.chapter-summary {
    color: var(--text-secondary);
    font-size: 0.8rem;
    flex: 2;
    background: transparent;
    border: none;
    outline: none;
    padding: 4px 8px;
    border-radius: 6px;
    transition: all 0.2s;
}
.chapter-summary:focus {
    background: rgba(0, 0, 0, 0.3);
    color: var(--text-primary);
}
.chapter-delete {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1rem;
    padding: 4px 8px;
    border-radius: 6px;
    opacity: 0.4;
    transition: all 0.2s;
}
.chapter-delete:hover {
    opacity: 1;
    color: var(--error);
    background: rgba(239,68,68,0.1);
}
.add-chapter-btn {
    padding: 10px 14px;
    border-radius: 10px;
    background: rgba(124, 58, 237, 0.06);
    border: 1px dashed rgba(124,58,237,0.3);
    color: var(--accent-light);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 8px;
    width: 100%;
    text-align: center;
}
.add-chapter-btn:hover {
    background: rgba(124, 58, 237, 0.12);
    border-color: var(--accent);
}

/* ── Show notes ── */
.shownotes-content {
    padding: 16px;
    background: rgba(0, 0, 0, 0.25);
    border-radius: 12px;
    border: 1px solid var(--border);
    font-size: 0.88rem;
    line-height: 1.7;
    color: var(--text-secondary);
    max-height: 600px;
    overflow-y: auto;
}
.shownotes-content:focus {
    outline: 1px solid var(--accent);
}
.shownotes-content h3 {
    color: var(--text-primary);
    font-size: 1rem;
    margin: 16px 0 8px;
}
.shownotes-content h3:first-child { margin-top: 0; }
.shownotes-content ul, .shownotes-content ol { padding-left: 20px; margin: 8px 0; }
.shownotes-content li { margin-bottom: 4px; }
.shownotes-content a { color: var(--accent-light); }
.shownotes-content code {
    background: rgba(0, 0, 0, 0.3);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.85rem;
}

/* ── Audio player ── */
.audio-player {
    width: 100%;
    margin-top: 8px;
    border-radius: 8px;
}

/* ── Responsive ── */
@media (max-width: 640px) {
    .container { padding: 0 12px 40px; }
    .ph-banner { flex-wrap: wrap; gap: 10px; padding: 16px; }
    .ph-banner-text h1 { font-size: 1rem; }
    .steps-bar { flex-wrap: wrap; }
    .step-item { font-size: 0.7rem; padding: 6px 2px; }
    .result-header { flex-direction: column; align-items: flex-start; }
    .result-actions { width: 100%; }
    .search-input { width: 100%; }
    .chapter-item { flex-direction: column; align-items: flex-start; }
    .chapter-title, .chapter-summary { width: 100%; }
    .drop-zone { padding: 32px 16px; }
    .drop-icon { font-size: 2.5rem; }
}