/**
 * Voice Pipeline Test UI Styles
 *
 * Clean, functional design for testing and debugging.
 * Uses CSS variables for easy theming.
 */

/* =============================================================================
   CSS Variables
   ============================================================================= */

:root {
    /* Colors */
    --color-bg: #1a1a2e;
    --color-bg-panel: #16213e;
    --color-bg-section: #0f3460;
    --color-bg-input: #1a1a2e;
    --color-border: #3a3a5e;
    --color-text: #e0e0e0;
    --color-text-muted: #888;
    --color-text-bright: #fff;

    /* Status colors */
    --color-success: #4ade80;
    --color-warning: #fbbf24;
    --color-error: #f87171;
    --color-info: #60a5fa;

    /* Accent */
    --color-primary: #6366f1;
    --color-primary-hover: #818cf8;

    /* Sizing */
    --panel-width: 280px;
    --header-height: 60px;
    --footer-height: 40px;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Courier New', monospace;
    --font-size-sm: 12px;
    --font-size-md: 14px;
    --font-size-lg: 16px;

    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
}


/* =============================================================================
   Base & Reset
   ============================================================================= */

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

html, body {
    height: 100%;
    font-family: var(--font-family);
    font-size: var(--font-size-md);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.5;
}


/* =============================================================================
   Layout
   ============================================================================= */

.container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    background-color: var(--color-bg-panel);
    border-bottom: 1px solid var(--color-border);
}

.header h1 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-bright);
}

.main-content {
    flex: 1;
    display: flex;
    overflow: hidden;
}

.footer {
    height: var(--footer-height);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0 var(--spacing-lg);
    background-color: var(--color-bg-panel);
    border-top: 1px solid var(--color-border);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.separator {
    color: var(--color-border);
}


/* =============================================================================
   Panels
   ============================================================================= */

.config-panel,
.events-panel {
    width: var(--panel-width);
    min-width: var(--panel-width);
    background-color: var(--color-bg-panel);
    border-right: 1px solid var(--color-border);
    overflow-y: auto;
    padding: var(--spacing-md);
}

.events-panel {
    border-right: none;
    border-left: 1px solid var(--color-border);
}

.config-panel h2,
.events-panel h2 {
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--color-text-bright);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.conversation-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
    overflow: hidden;
}

.conversation-panel h2 {
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--color-text-bright);
    margin-bottom: var(--spacing-md);
}


/* =============================================================================
   Configuration Sections
   ============================================================================= */

.config-section {
    margin-bottom: var(--spacing-lg);
}

.config-section h3 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.form-group input[type="text"],
.form-group select {
    width: 100%;
    padding: var(--spacing-sm);
    background-color: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: var(--font-size-sm);
    font-family: var(--font-mono);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-group input[type="range"] {
    width: 100%;
    height: 4px;
    -webkit-appearance: none;
    background: var(--color-border);
    border-radius: 2px;
    cursor: pointer;
}

.form-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.checkbox-group label {
    margin-bottom: 0;
}

.checkbox-group input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}


/* =============================================================================
   Connection Status
   ============================================================================= */

.connection-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-bg-section);
    border-radius: var(--radius-md);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.status-dot.disconnected {
    background-color: var(--color-text-muted);
    animation: none;
}

.status-dot.connecting {
    background-color: var(--color-warning);
}

.status-dot.connected {
    background-color: var(--color-success);
}

.status-dot.error {
    background-color: var(--color-error);
    animation: none;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.status-text {
    font-size: var(--font-size-sm);
    color: var(--color-text);
}


/* =============================================================================
   Session Controls
   ============================================================================= */

.session-controls {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color 0.2s, opacity 0.2s;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-hover);
}

.btn-secondary {
    background-color: var(--color-bg-section);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-border);
}

.btn-small {
    padding: 2px 8px;
    font-size: 11px;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    cursor: pointer;
}

.btn-small:hover {
    color: var(--color-text);
    border-color: var(--color-text-muted);
}


/* =============================================================================
   Audio Visualizer
   ============================================================================= */

.audio-visualizer {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    background-color: var(--color-bg-section);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

#audioCanvas {
    flex: 1;
    height: 60px;
    background-color: var(--color-bg);
    border-radius: var(--radius-sm);
}

.vad-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    min-width: 60px;
}

.vad-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: var(--color-text-muted);
    transition: background-color 0.1s;
}

.vad-dot.speaking {
    background-color: var(--color-success);
    box-shadow: 0 0 10px var(--color-success);
}

.vad-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    text-transform: uppercase;
}


/* =============================================================================
   Transcript Container
   ============================================================================= */

.transcript-container {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    background-color: var(--color-bg-panel);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.transcript-welcome {
    text-align: center;
    color: var(--color-text-muted);
    padding: var(--spacing-lg);
}

.transcript-welcome p {
    margin-bottom: var(--spacing-sm);
}

.transcript-message {
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    border-radius: var(--radius-md);
    max-width: 80%;
}

.transcript-message.user {
    background-color: var(--color-primary);
    color: white;
    margin-left: auto;
}

.transcript-message.assistant {
    background-color: var(--color-bg-section);
    color: var(--color-text);
}

.transcript-message.partial {
    opacity: 0.7;
    font-style: italic;
}

.transcript-meta {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}


/* =============================================================================
   Input Status
   ============================================================================= */

.input-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-bg-section);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
}

.input-status .status-icon {
    font-size: 18px;
}

.input-status .status-message {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.input-status.active {
    background-color: rgba(99, 102, 241, 0.2);
}

.input-status.active .status-message {
    color: var(--color-text);
}


/* =============================================================================
   Metrics Section
   ============================================================================= */

.metrics-section {
    margin-bottom: var(--spacing-lg);
}

.metrics-section h3 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.metric-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs) 0;
    font-size: var(--font-size-sm);
}

.metric-label {
    color: var(--color-text-muted);
}

.metric-value {
    font-family: var(--font-mono);
    color: var(--color-text);
}

.metric-value.good {
    color: var(--color-success);
}

.metric-value.warning {
    color: var(--color-warning);
}

.metric-value.bad {
    color: var(--color-error);
}


/* =============================================================================
   Event Log
   ============================================================================= */

.events-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.events-section h3 {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.event-log {
    flex: 1;
    overflow-y: auto;
    background-color: var(--color-bg);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
    font-family: var(--font-mono);
    font-size: 11px;
    line-height: 1.6;
}

.event-placeholder {
    color: var(--color-text-muted);
    text-align: center;
    padding: var(--spacing-md);
}

.event-entry {
    padding: 2px 0;
    border-bottom: 1px solid var(--color-border);
}

.event-entry:last-child {
    border-bottom: none;
}

.event-time {
    color: var(--color-text-muted);
    margin-right: var(--spacing-sm);
}

.event-type {
    font-weight: 600;
    margin-right: var(--spacing-sm);
}

.event-type.vad { color: var(--color-info); }
.event-type.stt { color: var(--color-success); }
.event-type.llm { color: var(--color-warning); }
.event-type.tts { color: #c084fc; }
.event-type.audio { color: #38bdf8; }
.event-type.queue { color: #94a3b8; }
.event-type.client { color: #f472b6; }
.event-type.debug { color: var(--color-text-muted); }
.event-type.barge { color: var(--color-error); }
.event-type.turn { color: var(--color-text-bright); }
.event-type.error { color: var(--color-error); }
.event-type.system { color: var(--color-text-muted); }

.event-detail {
    color: var(--color-text);
}


/* =============================================================================
   Scrollbar Styling
   ============================================================================= */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}


/* =============================================================================
   Responsive Adjustments
   ============================================================================= */

@media (max-width: 1200px) {
    .config-panel,
    .events-panel {
        width: 240px;
        min-width: 240px;
    }
}

@media (max-width: 900px) {
    .main-content {
        flex-direction: column;
    }

    .config-panel,
    .events-panel {
        width: 100%;
        min-width: unset;
        max-height: 30vh;
        border: none;
        border-bottom: 1px solid var(--color-border);
    }

    .events-panel {
        border-top: 1px solid var(--color-border);
        border-bottom: none;
    }
}