/* TTS Playground Styles */

:root {
    --bg: #0f1117;
    --surface: #1a1d27;
    --surface-2: #242734;
    --border: #2e3144;
    --text: #e1e4ed;
    --text-dim: #8b8fa3;
    --accent: #6c8aff;
    --accent-hover: #8da3ff;
    --success: #4ade80;
    --error: #f87171;
    --warning: #fbbf24;
    --font-mono: "JetBrains Mono", "Fira Code", "Consolas", monospace;
    --radius: 8px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

header {
    text-align: center;
    padding: 32px 24px 16px;
    border-bottom: 1px solid var(--border);
}

header h1 {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.subtitle {
    color: var(--text-dim);
    font-size: 14px;
    margin-top: 4px;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

/* --- Test Case Browser --- */

/* Vendor Selector */
#vendor-selector {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

#vendor-selector label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-dim);
    white-space: nowrap;
}

#vendor-select {
    min-width: 240px;
}

/* Model selector warning badge */
.model-warning {
    font-size: 10px;
    color: var(--warning);
    margin-left: 4px;
    font-weight: 600;
}

#test-cases {
    margin-bottom: 40px;
}

#test-cases h2 {
    font-size: 20px;
    margin-bottom: 16px;
    color: var(--text);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
}

.case-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    cursor: default;
    transition: border-color 0.2s;
}

.case-card:hover {
    border-color: var(--accent);
}

.case-card .card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.case-card .case-id {
    background: var(--accent);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
    letter-spacing: 0.5px;
}

.case-card .case-name {
    font-weight: 600;
    font-size: 14px;
    flex: 1;
}

.case-card .ssml-tag {
    background: var(--warning);
    color: #000;
    font-size: 10px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 3px;
}

.case-card .emotion-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 10px;
}

.case-card .emotion-tag {
    background: var(--surface-2);
    color: var(--accent);
    font-size: 10px;
    font-family: var(--font-mono);
    padding: 1px 6px;
    border-radius: 3px;
    border: 1px solid var(--border);
}

.case-card .case-desc {
    color: var(--text-dim);
    font-size: 12px;
    margin-bottom: 8px;
}

.case-card .text-preview {
    color: var(--text-dim);
    font-size: 11px;
    line-height: 1.4;
    max-height: 40px;
    overflow: hidden;
    margin-bottom: 10px;
}

.case-card .load-btn {
    width: 100%;
    padding: 6px 0;
    background: var(--surface-2);
    color: var(--accent);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.case-card .load-btn:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* --- Playground --- */

#playground {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
}

#playground h2 {
    font-size: 20px;
    margin-bottom: 16px;
}

.input-group {
    margin-bottom: 16px;
}

.tab-bar {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-bottom: 8px;
}

.tab {
    padding: 6px 16px;
    background: transparent;
    color: var(--text-dim);
    border: 1px solid var(--border);
    border-bottom: none;
    border-radius: 6px 6px 0 0;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.tab.active {
    background: var(--surface-2);
    color: var(--accent);
    border-color: var(--accent);
}

.mode-badge {
    background: var(--warning);
    color: #000;
    font-size: 10px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 4px;
    margin-left: 8px;
}

#text-input {
    width: 100%;
    padding: 12px;
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 0 var(--radius) var(--radius) var(--radius);
    font-size: 14px;
    line-height: 1.5;
    resize: vertical;
    font-family: inherit;
    transition: border-color 0.2s;
}

#text-input:focus {
    outline: none;
    border-color: var(--accent);
}

#text-input.ssml-mode {
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.6;
}

.char-count {
    text-align: right;
    color: var(--text-dim);
    font-size: 11px;
    margin-top: 4px;
}

.controls-row {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.control-group label {
    font-size: 12px;
    color: var(--text-dim);
    font-weight: 500;
}

select {
    padding: 8px 12px;
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    min-width: 180px;
}

select:focus {
    outline: none;
    border-color: var(--accent);
}

#synthesize-btn {
    padding: 8px 32px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

#synthesize-btn:hover:not(:disabled) {
    background: var(--accent-hover);
}

#synthesize-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* --- Params Panel --- */

.params-panel {
    margin-bottom: 16px;
}

.params-panel summary {
    color: var(--text-dim);
    font-size: 13px;
    cursor: pointer;
    padding: 4px 0;
    user-select: none;
}

.params-panel summary:hover {
    color: var(--accent);
}

.sliders-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 12px;
}

.slider-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.slider-group label {
    font-size: 12px;
    color: var(--text-dim);
}

.slider-value {
    color: var(--accent);
    font-weight: 600;
    font-family: var(--font-mono);
    font-size: 11px;
}

input[type="range"] {
    width: 100%;
    accent-color: var(--accent);
}

.reset-btn {
    padding: 2px 8px;
    background: transparent;
    color: var(--text-dim);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 10px;
    cursor: pointer;
    align-self: flex-start;
}

.reset-btn:hover {
    color: var(--error);
    border-color: var(--error);
}

/* --- Loading --- */

#loading {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    color: var(--text-dim);
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* --- Error --- */

.error-box {
    background: rgba(248, 113, 113, 0.1);
    border: 1px solid var(--error);
    border-radius: var(--radius);
    padding: 12px 16px;
    color: var(--error);
    font-size: 13px;
}

/* --- Result --- */

#result-section {
    margin-top: 16px;
}

#result-section h3 {
    font-size: 16px;
    margin-bottom: 12px;
}

.result-panel {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
}

audio {
    width: 100%;
    margin-bottom: 12px;
    border-radius: 6px;
}

.latency-metrics {
    display: flex;
    gap: 24px;
}

.metric {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.metric-label {
    font-size: 11px;
    color: var(--text-dim);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.metric-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--success);
    font-family: var(--font-mono);
}

.metric-value::after {
    content: " ms";
    font-size: 12px;
    color: var(--text-dim);
    font-weight: 400;
}

/* --- Footer --- */

footer {
    text-align: center;
    padding: 24px;
    color: var(--text-dim);
    font-size: 12px;
    border-top: 1px solid var(--border);
    margin-top: 40px;
}

/* --- Utility --- */

.hidden {
    display: none !important;
}