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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #f0f2f5;
    color: #1a1a2e;
    line-height: 1.6;
    min-height: 100vh;
}

/* ===== Two-Column Layout ===== */
.layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

.panel-left {
    width: 340px;
    min-width: 300px;
    flex-shrink: 0;
    padding: 20px 16px;
    overflow-y: auto;
    border-right: 1px solid #e5e5e5;
    background: #fff;
}

.panel-right {
    flex: 1;
    padding: 20px 20px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* ===== Header ===== */
header {
    text-align: center;
    margin-bottom: 20px;
}

header h1 {
    font-size: 22px;
    font-weight: 700;
    color: #1a1a2e;
}

.subtitle {
    color: #666;
    font-size: 13px;
    margin-top: 2px;
}

/* ===== Card ===== */
.card {
    background: #fff;
    border-radius: 10px;
    padding: 16px 18px;
    margin-bottom: 14px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.panel-left .card {
    background: #f9fafb;
}

.card h2 {
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
    padding-bottom: 6px;
    border-bottom: 1px solid #eee;
}

/* ===== Collapsible Card Header ===== */
.card-header-collapsible {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
    padding-bottom: 0;
}

.card-header-collapsible h2 {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.collapse-arrow {
    font-size: 11px;
    color: #999;
    transition: transform 0.2s;
}

.collapse-arrow.expanded {
    color: #4a7dff;
}

.advanced-params-body {
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid #eee;
}

/* ===== Section Divider ===== */
.section-divider {
    border-top: 1px solid #eee;
    margin: 12px 0;
}

/* ===== Form (left panel) ===== */
.form-stack {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.form-row {
    display: flex;
    gap: 16px;
}

.form-row .form-group {
    flex: 1;
}

.form-row-3 {
    display: flex;
    gap: 10px;
}

.form-row-3 .form-group {
    flex: 1;
    min-width: 0;
}

.form-group label:first-child {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: #555;
    margin-bottom: 4px;
}

.hint {
    color: #999;
    font-weight: 400;
}

select,
input[type="text"] {
    width: 100%;
    padding: 7px 10px;
    border: 1px solid #d9d9d9;
    border-radius: 6px;
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s;
}

select:focus,
input[type="text"]:focus {
    border-color: #4a7dff;
    box-shadow: 0 0 0 2px rgba(74, 125, 255, 0.15);
}

input[type="text"][readonly] {
    background: #f7f8fa;
    color: #666;
    cursor: default;
}

input[type="text"][readonly]:focus {
    border-color: #d9d9d9;
    box-shadow: none;
}

/* ===== Toggle Switch ===== */
.toggle {
    display: inline-flex;
    align-items: center;
    cursor: pointer;
    gap: 6px;
    user-select: none;
}

.toggle input {
    display: none;
}

.toggle-slider {
    width: 36px;
    height: 20px;
    background: #ccc;
    border-radius: 10px;
    position: relative;
    transition: background 0.2s;
}

.toggle-slider::after {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    background: #fff;
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: transform 0.2s;
}

.toggle input:checked + .toggle-slider {
    background: #4a7dff;
}

.toggle input:checked + .toggle-slider::after {
    transform: translateX(16px);
}

.toggle-label {
    font-size: 12px;
    color: #666;
}

/* ===== Audio Input (left panel) ===== */
.audio-input-stack {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* Input mode tabs */
.input-mode-tabs {
    display: flex;
    gap: 0;
    border: 1px solid #d9d9d9;
    border-radius: 6px;
    overflow: hidden;
}

.mode-tab {
    flex: 1;
    padding: 6px 0;
    border: none;
    background: #fff;
    font-size: 12px;
    font-weight: 500;
    color: #666;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.mode-tab + .mode-tab {
    border-left: 1px solid #d9d9d9;
}

.mode-tab.active {
    background: #4a7dff;
    color: #fff;
}

.mode-tab:hover:not(.active) {
    background: #f0f5ff;
}

/* File select */
.file-select {
    display: flex;
    align-items: center;
    gap: 10px;
}

.file-info {
    font-size: 12px;
    color: #888;
    word-break: break-all;
}

.file-info.has-file {
    color: #333;
    font-weight: 500;
}

/* Audio meta info */
.audio-meta {
    background: #f7f8fa;
    border-radius: 6px;
    padding: 8px 10px;
    font-size: 12px;
}

.audio-meta-row {
    display: flex;
    justify-content: space-between;
    padding: 2px 0;
}

.audio-meta-row .meta-k {
    color: #888;
}

.audio-meta-row .meta-v {
    color: #333;
    font-family: "SF Mono", Menlo, monospace;
    font-size: 11px;
}

/* Speed control */
.speed-control {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.speed-label {
    font-size: 12px;
    font-weight: 500;
    color: #555;
}

.speed-label span {
    color: #4a7dff;
    font-weight: 600;
}

#speedSlider {
    width: 100%;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: #e5e5e5;
    border-radius: 2px;
    outline: none;
}

#speedSlider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #4a7dff;
    cursor: pointer;
}

/* Microphone panel */
.mic-status {
    text-align: center;
    color: #888;
    font-size: 13px;
    padding: 8px 0;
}

.mic-timer {
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    color: #ff4d4f;
    padding: 8px 0;
    animation: pulse 1s infinite;
}

.mic-timer span {
    font-family: "SF Mono", Menlo, monospace;
    margin-left: 4px;
}

.controls {
    display: flex;
    gap: 8px;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 7px 16px;
    border: none;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.btn-primary {
    background: #4a7dff;
    color: #fff;
}

.btn-primary:hover:not(:disabled) {
    background: #3a6ae8;
}

.btn-danger {
    background: #ff4d4f;
    color: #fff;
}

.btn-danger:hover:not(:disabled) {
    background: #e63e40;
}

.btn-outline {
    background: #fff;
    color: #4a7dff;
    border: 1px solid #4a7dff;
}

.btn-outline:hover {
    background: #f0f5ff;
}

.btn-icon {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 14px;
    padding: 2px 4px;
    border-radius: 4px;
    transition: background 0.15s;
}

.btn-icon:hover {
    background: #f0f0f0;
}

.btn-icon.copy-success {
    background: #e6f7e9;
}

/* Export WAV button */
.btn-export {
    margin-left: 4px;
    font-size: 11px !important;
    padding: 2px 8px !important;
}

.btn-export:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

/* ===== Copy Toast ===== */
.copy-toast {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    background: #333;
    color: #fff;
    padding: 6px 18px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.25s, transform 0.25s;
    pointer-events: none;
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.copy-toast.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.copy-toast-error {
    background: #ff4d4f;
}

/* ===== Result Section (right panel) ===== */
.result-card {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: #fff;
}

.result-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 10px;
    padding: 6px 10px;
    background: #f7f8fa;
    border-radius: 6px;
    font-size: 12px;
    flex-shrink: 0;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.meta-label {
    color: #888;
}

.meta-value {
    color: #333;
    font-family: "SF Mono", Menlo, monospace;
    font-size: 11px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ccc;
}

.status-dot.connecting {
    background: #faad14;
    animation: pulse 1s infinite;
}

.status-dot.running {
    background: #52c41a;
    animation: pulse 1s infinite;
}

.status-dot.done {
    background: #4a7dff;
}

.status-dot.error {
    background: #ff4d4f;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.result-area {
    flex: 1;
    overflow-y: auto;
    padding: 4px 0;
}

.placeholder {
    text-align: center;
    color: #bbb;
    padding: 60px 0;
    font-size: 14px;
}

/* ===== Subtitle Mode (no speaker diarization) ===== */
.subtitle-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 5px 8px;
    border-radius: 6px;
    margin-bottom: 3px;
    transition: background 0.15s;
}

.subtitle-item:hover {
    background: #f7f8fa;
}

.subtitle-time {
    font-size: 11px;
    color: #999;
    font-family: "SF Mono", Menlo, monospace;
    white-space: nowrap;
    min-width: 100px;
    padding-top: 2px;
}

.subtitle-text {
    font-size: 14px;
    color: #1a1a2e;
    word-break: break-word;
    transition: color 0.3s ease;
}

.subtitle-text.interim {
    color: #999;
    font-style: italic;
}

.subtitle-text.final {
    color: #000;
    font-style: normal;
    font-weight: 500;
}

.subtitle-item.subtitle-interim {
    opacity: 0.8;
}

/* ===== Bubble Mode (speaker diarization) ===== */
.bubble-row {
    display: flex;
    margin-bottom: 10px;
}

.bubble-row.speaker-left {
    justify-content: flex-start;
}

.bubble-row.speaker-right {
    justify-content: flex-end;
}

.bubble-row.speaker-unknown .bubble-body {
    background: #f0f0f0;
    color: #999;
    font-style: italic;
    border-radius: 12px;
    border-top-left-radius: 4px;
}

.speaker-badge.speaker-color-unknown {
    background-color: #ccc;
}

.bubble-wrapper {
    max-width: 80%;
}

.bubble-header {
    font-size: 11px;
    color: #888;
    margin-bottom: 3px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.speaker-right .bubble-header {
    justify-content: flex-end;
}

.speaker-badge {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.bubble-body {
    padding: 9px 13px;
    border-radius: 12px;
    font-size: 14px;
    line-height: 1.5;
    word-break: break-word;
}

.speaker-left .bubble-body {
    background: #e8f0fe;
    color: #1a1a2e;
    border-top-left-radius: 4px;
}

.speaker-right .bubble-body {
    background: #e6f7e9;
    color: #1a1a2e;
    border-top-right-radius: 4px;
    text-align: right;
}

.bubble-body.interim {
    opacity: 0.6;
    font-style: italic;
}

/* Pending text (speaker_id=-1) appended to confirmed bubble */
.pending-text {
    display: inline;
    color: #aaa;
    font-style: italic;
    opacity: 0.7;
    margin-left: 2px;
    transition: opacity 0.3s ease;
}

.pending-text::before {
    content: ' ';
}

.bubble-time {
    font-size: 10px;
    color: #bbb;
    font-family: "SF Mono", Menlo, monospace;
}

/* ===== Speaker Colors ===== */
.speaker-color-0 { background-color: #4a7dff; }
.speaker-color-1 { background-color: #52c41a; }
.speaker-color-2 { background-color: #faad14; }
.speaker-color-3 { background-color: #ff4d4f; }
.speaker-color-4 { background-color: #9254de; }
.speaker-color-5 { background-color: #13c2c2; }

.bubble-row.speaker-2 .bubble-body { background: #fff7e6; }
.bubble-row.speaker-3 .bubble-body { background: #fff1f0; }
.bubble-row.speaker-4 .bubble-body { background: #f9f0ff; }
.bubble-row.speaker-5 .bubble-body { background: #e6fffb; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .layout {
        flex-direction: column;
        height: auto;
    }
    .panel-left {
        width: 100%;
        min-width: unset;
        border-right: none;
        border-bottom: 1px solid #e5e5e5;
        max-height: 40vh;
    }
    .panel-right {
        min-height: 60vh;
    }
}

/* ===== Log Panel ===== */
.log-card {
    height: 240px;
    min-height: 180px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.log-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 1px solid #eee;
}

.log-header h2 {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.btn-sm {
    padding: 3px 10px;
    font-size: 11px;
}

.log-area {
    flex: 1;
    overflow-y: auto;
    background: #1e1e2e;
    border-radius: 6px;
    padding: 8px 10px;
    font-family: "SF Mono", Menlo, Consolas, monospace;
    font-size: 11px;
    line-height: 1.5;
    color: #cdd6f4;
}

.log-entry {
    padding: 2px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    word-break: break-all;
}

.log-time {
    color: #6c7086;
    margin-right: 6px;
}

.log-type-start { color: #a6e3a1; }
.log-type-voice_id { color: #cba6f7; }
.log-type-sentences { color: #89b4fa; }
.log-type-result { color: #89b4fa; }
.log-type-end { color: #f9e2af; }
.log-type-error { color: #f38ba8; }