:root {
    --primary: #1E40AF;
    --secondary: #0EA5E9;
    --accent: #14B8A6;
    --success: #22C55E;
    --warning: #F59E0B;
    --error: #DC2626;
    --background: #F8FAFC;
    --surface: #FFFFFF;
    --text: #0F172A;
    --text-muted: #64748B;
    --border: #E2E8F0;
    --nav-width: 240px;
}

[data-theme="dark"] {
    --primary: #3B82F6;
    --secondary: #0EA5E9;
    --accent: #2DD4BF;
    --background: #0F172A;
    --surface: #1E293B;
    --text: #F1F5F9;
    --text-muted: #94A3B8;
    --border: #334155;
}

@media (prefers-color-scheme: dark) {
    .app-root[data-theme="system"] {
        --primary: #3B82F6;
        --accent: #2DD4BF;
        --background: #0F172A;
        --surface: #1E293B;
        --text: #F1F5F9;
        --text-muted: #94A3B8;
        --border: #334155;
    }
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--background);
    color: var(--text);
    line-height: 1.5;
}

h1 { font-size: 1.75rem; margin: 0 0 0.5rem; color: var(--text); }
h2 { font-size: 1.25rem; margin: 0; }
h3 { font-size: 1rem; margin: 0 0 0.5rem; }

.page-subtitle { color: var(--text-muted); margin-bottom: 1.5rem; }

.layout {
    display: flex;
    min-height: 100vh;
}

.nav-menu {
    width: var(--nav-width);
    background: var(--surface);
    border-right: 1px solid var(--border);
    padding: 1rem 0.75rem;
    flex-shrink: 0;
}

.nav-menu.collapsed { width: 64px; }
.nav-menu.collapsed .nav-link span { display: none; }

.nav-toggle {
    background: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--text);
    margin-bottom: 1rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.75rem;
    border-radius: 8px;
    color: var(--text-muted);
    text-decoration: none;
    margin-bottom: 0.25rem;
    transition: background 0.15s, color 0.15s;
}

.nav-link:hover { background: var(--background); color: var(--text); }
.nav-link.active { background: color-mix(in srgb, var(--primary) 12%, transparent); color: var(--primary); font-weight: 600; }

.nav-icon { width: 20px; height: 20px; flex-shrink: 0; }

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.top-bar {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: inherit;
}

.brand-logo { width: 40px; height: 40px; }
.brand-text { display: flex; flex-direction: column; }
.brand-name { font-weight: 700; font-size: 1.1rem; color: var(--primary); }
.brand-tagline { font-size: 0.75rem; color: var(--text-muted); }

.content {
    padding: 1.5rem;
    flex: 1;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1rem;
}

.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; font-weight: 600; margin-bottom: 0.5rem; font-size: 0.875rem; }

.form-input {
    width: 100%;
    max-width: 480px;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--background);
    color: var(--text);
    font-size: 1rem;
}

.hint { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.35rem; }

.language-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.language-chips.compact .chip { padding: 0.25rem 0.5rem; font-size: 0.8rem; }

.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.45rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--background);
    color: var(--text);
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.15s;
}

.chip:hover { border-color: var(--secondary); }
.chip-selected { background: color-mix(in srgb, var(--primary) 15%, transparent); border-color: var(--primary); color: var(--primary); font-weight: 600; }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.1rem;
    border-radius: 8px;
    border: none;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: opacity 0.15s;
}

.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-sm { padding: 0.4rem 0.75rem; font-size: 0.8rem; }
.btn-icon { width: 16px; height: 16px; }

.btn-primary { background: var(--primary); color: #fff; }
.btn-secondary { background: var(--secondary); color: #fff; }
.btn-danger { background: var(--error); color: #fff; }
.btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }

.form-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-top: 1rem; }

.alert {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.alert-error { background: color-mix(in srgb, var(--error) 12%, transparent); color: var(--error); border: 1px solid color-mix(in srgb, var(--error) 30%, transparent); }
.alert-warning { background: color-mix(in srgb, var(--warning) 12%, transparent); color: var(--warning); border: 1px solid color-mix(in srgb, var(--warning) 30%, transparent); }
.alert-success, .status-ok { background: color-mix(in srgb, var(--success) 12%, transparent); color: var(--success); }

.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success { background: color-mix(in srgb, var(--success) 15%, transparent); color: var(--success); }
.badge-warning { background: color-mix(in srgb, var(--warning) 15%, transparent); color: var(--warning); }

.progress-bar {
    height: 8px;
    background: var(--border);
    border-radius: 999px;
    overflow: hidden;
    margin: 0.5rem 0;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: width 0.3s;
}

.progress-text { font-size: 0.8rem; color: var(--text-muted); }

.event-list { display: grid; gap: 1rem; }
.event-card-header { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 0.75rem; }
.event-date { font-size: 0.8rem; color: var(--text-muted); }

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.data-table th,
.data-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.data-table th {
    background: color-mix(in srgb, var(--primary) 8%, transparent);
    font-size: 0.85rem;
    font-weight: 600;
}

.data-table tr:last-child td { border-bottom: none; }
.data-table .col-actions { white-space: nowrap; width: 1%; }
.data-table .col-actions .btn { margin-right: 0.35rem; }
.data-table .table-empty { text-align: center; color: var(--text-muted); }

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.form-hint { font-size: 0.85rem; color: var(--text-muted); margin: 0.25rem 0 0.75rem; }
.custom-language-form { margin-top: 1rem; padding: 1rem; }
.edit-event-card { margin-bottom: 1.5rem; }

.run-title-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.main-content.run-mode .content { max-width: none; }

.empty-state { text-align: center; padding: 2rem; }

.model-list { display: grid; gap: 1rem; }
.model-card-header { display: flex; justify-content: space-between; align-items: center; }
.model-id { font-family: monospace; font-size: 0.8rem; color: var(--text-muted); }

.storage-info { max-width: 480px; }

.run-header { margin-bottom: 1rem; }
.run-controls { display: flex; gap: 0.5rem; margin: 1rem 0; }
.pipeline-status { font-size: 0.9rem; color: var(--text-muted); }

.language-panels {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.language-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    min-height: 320px;
    max-height: 60vh;
}

.language-panel.active-speaker {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 25%, transparent);
}

.panel-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    background: color-mix(in srgb, var(--primary) 5%, transparent);
}

.panel-flag { font-size: 1.25rem; }
.panel-lang-name { font-weight: 600; flex: 1; }

.active-badge {
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
}

.caption-stream {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem 1rem;
}

.caption-line {
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.caption-line:last-child { border-bottom: none; }
.caption-time { font-size: 0.7rem; color: var(--text-muted); }
.caption-text { margin: 0.25rem 0 0; font-size: 0.95rem; }

.loading-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    gap: 1rem;
    color: var(--text-muted);
}

#blazor-error-ui {
    background: var(--error);
    color: #fff;
    padding: 0.75rem 1rem;
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

#blazor-error-ui .dismiss { cursor: pointer; margin-left: 1rem; }
#blazor-error-ui .reload { color: #fff; }

@media (max-width: 768px) {
    .layout { flex-direction: column; }
    .nav-menu {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }
    .nav-menu nav { display: flex; overflow-x: auto; gap: 0.25rem; }
    .nav-link span { display: none; }
    .brand-tagline { display: none; }
}