/* ==================== 
   Vibo ESP32 Test Console
   Professional & Minimal Design
   ==================== */

:root {
    /* Color Palette - Neutral & Professional */
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f3f4;
    --bg-dark: #1a1a2e;
    
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --text-muted: #9aa0a6;
    --text-inverse: #ffffff;
    
    --border-light: #e8eaed;
    --border-medium: #dadce0;
    
    /* Accent Colors - Subtle */
    --accent-primary: #1a73e8;
    --accent-success: #34a853;
    --accent-warning: #f9ab00;
    --accent-danger: #ea4335;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.12);
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;
    
    /* Font */
    --font-mono: 'SF Mono', 'Consolas', 'Monaco', monospace;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    min-height: 100vh;
}

/* ==================== Layout ==================== */
.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

/* Header */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
}

.app-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.app-title .logo {
    width: 32px;
    height: 32px;
    background: var(--bg-dark);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-inverse);
    font-size: 16px;
}

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

/* Grid Layout */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

@media (max-width: 768px) {
    .grid-2 {
        grid-template-columns: 1fr;
    }
}

/* ==================== Cards ==================== */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-tertiary);
}

.card-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-body {
    padding: var(--spacing-md);
}

.card-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-light);
    background: var(--bg-tertiary);
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 13px;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

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

.btn-primary {
    background: var(--accent-primary);
    color: var(--text-inverse);
}

.btn-primary:hover:not(:disabled) {
    background: #1557b0;
}

.btn-success {
    background: var(--accent-success);
    color: var(--text-inverse);
}

.btn-success:hover:not(:disabled) {
    background: #2d8b47;
}

.btn-danger {
    background: var(--accent-danger);
    color: var(--text-inverse);
}

.btn-danger:hover:not(:disabled) {
    background: #c5221f;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-medium);
    color: var(--text-secondary);
}

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

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--bg-tertiary);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 12px;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 14px;
}

.btn-icon {
    width: 32px;
    height: 32px;
    padding: 0;
    border-radius: var(--radius-md);
}

/* ==================== Form Elements ==================== */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.form-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 13px;
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: border-color 0.15s ease;
}

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

.form-input:disabled {
    background: var(--bg-tertiary);
    color: var(--text-muted);
    cursor: not-allowed;
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-input-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 12px;
}

/* ==================== Config Panel (Compact) ==================== */
.config-panel .card-header {
    transition: background-color 0.15s ease;
}

.config-panel .card-header:hover {
    background: #e8eaed;
}

.config-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm) var(--spacing-md);
}

@media (max-width: 900px) {
    .config-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .config-grid {
        grid-template-columns: 1fr;
    }
}

.config-panel .form-group {
    margin-bottom: 0;
}

.expand-icon {
    font-size: 10px;
    color: var(--text-muted);
    transition: transform 0.2s ease;
}

.expand-icon.expanded {
    transform: rotate(180deg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

@media (max-width: 480px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* ==================== Status Indicators ==================== */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 2px 8px;
    font-size: 11px;
    font-weight: 500;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.status-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.status-offline {
    background: #fce8e6;
    color: #c5221f;
}

.status-offline::before {
    background: #ea4335;
}

.status-connected {
    background: #e6f4ea;
    color: #137333;
}

.status-connected::before {
    background: #34a853;
}

.status-listening {
    background: #e8f0fe;
    color: #1967d2;
}

.status-listening::before {
    background: #1a73e8;
    animation: pulse-dot 1.5s infinite;
}

.status-speaking {
    background: #fef7e0;
    color: #b06000;
}

.status-speaking::before {
    background: #f9ab00;
    animation: pulse-dot 1s infinite;
}

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

/* ==================== Tabs ==================== */
.tabs {
    display: flex;
    gap: var(--spacing-xs);
    border-bottom: 1px solid var(--border-light);
    margin-bottom: var(--spacing-md);
}

.tab {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all 0.15s ease;
    margin-bottom: -1px;
}

.tab:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.tab.active {
    color: var(--accent-primary);
    border-bottom-color: var(--accent-primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* ==================== Session Status ==================== */
.session-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.session-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.session-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.session-details h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.session-details p {
    font-size: 12px;
    color: var(--text-muted);
}

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

/* ==================== Console / Log ==================== */
.console-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

@media (max-width: 900px) {
    .console-container {
        grid-template-columns: 1fr;
    }
}

.console {
    background: var(--bg-dark);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.console-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255,255,255,0.05);
}

.console-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.console-body {
    padding: var(--spacing-md);
    height: 300px;
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.6;
}

/* Conversation Panel - Light theme */
.conversation {
    background: #f8f9fa;
    color: #1f2937;
    border-radius: var(--radius-md);
}

.message {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    max-width: 85%;
}

.message-user {
    background: var(--accent-primary);
    color: var(--text-inverse);
    margin-left: auto;
    border-radius: var(--radius-md);
}

.message-assistant {
    background: #e5e7eb;
    color: #1f2937;
    border: 1px solid #d1d5db;
    border-radius: var(--radius-md);
}

/* Log Panel - Dark theme with bright text */
.log-body {
    background: #1a1a2e;
    color: #ffffff;
    border-radius: var(--radius-md);
}

.log-entry {
    padding: 2px 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    color: #ffffff;
}

.log-time {
    color: #b8bcc8;
    margin-right: var(--spacing-sm);
}

.log-info { color: #a8d4ff; }
.log-success { color: #98e6a8; }
.log-warning { color: #ffe066; }
.log-error { color: #ff9999; }

/* ==================== Audio Controls ==================== */
.audio-panel {
    padding: var(--spacing-lg);
    text-align: center;
}

.record-btn {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full);
    background: var(--accent-danger);
    border: 4px solid rgba(234,67,53,0.3);
    color: var(--text-inverse);
    font-size: 24px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.record-btn:hover:not(:disabled) {
    transform: scale(1.05);
    box-shadow: 0 0 0 8px rgba(234,67,53,0.15);
}

.record-btn:disabled {
    background: var(--text-muted);
    border-color: rgba(154,160,166,0.3);
    cursor: not-allowed;
}

.record-btn.recording {
    animation: recording-pulse 1.5s infinite;
}

@keyframes recording-pulse {
    0%, 100% { box-shadow: 0 0 0 4px rgba(234,67,53,0.3); }
    50% { box-shadow: 0 0 0 12px rgba(234,67,53,0.1); }
}

.audio-visualizer {
    width: 100%;
    height: 60px;
    margin-top: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

/* ==================== File Upload ==================== */
.file-upload-area {
    border: 2px dashed var(--border-medium);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all 0.15s ease;
    cursor: pointer;
}

.file-upload-area:hover {
    border-color: var(--accent-primary);
    background: rgba(26,115,232,0.05);
}

.file-upload-area.has-file {
    border-style: solid;
    border-color: var(--accent-success);
    background: rgba(52,168,83,0.05);
}

.file-upload-icon {
    font-size: 32px;
    margin-bottom: var(--spacing-sm);
    color: var(--text-muted);
}

.file-upload-text {
    font-size: 13px;
    color: var(--text-secondary);
}

.file-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.file-info-item {
    font-size: 12px;
    color: var(--text-secondary);
}

.file-info-item strong {
    color: var(--text-primary);
}

.playback-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: var(--border-light);
    border-radius: var(--radius-full);
    margin-top: var(--spacing-md);
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: var(--accent-primary);
    width: 0%;
    transition: width 0.1s linear;
}

/* ==================== MCP Tools ==================== */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.tool-card {
    padding: var(--spacing-md);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    transition: all 0.15s ease;
}

.tool-card:hover {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-md);
}

.tool-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-mono);
}

.tool-description {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* ==================== Debug Panel ==================== */
.debug-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-md);
    display: none;
}

.debug-panel.visible {
    display: block;
}

.debug-stats {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.debug-stat {
    font-size: 12px;
    color: var(--text-secondary);
}

.debug-stat strong {
    color: var(--text-primary);
}

/* ==================== Modal ==================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-overlay.visible {
    display: flex;
}

.modal {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
}

.modal-title {
    font-size: 16px;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: none;
    font-size: 20px;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: var(--radius-md);
}

.modal-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-light);
}

/* ==================== Utilities ==================== */
.hidden {
    display: none !important;
}

.flex {
    display: flex;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-sm {
    gap: var(--spacing-sm);
}

.gap-md {
    gap: var(--spacing-md);
}

.mt-md {
    margin-top: var(--spacing-md);
}

.text-center {
    text-align: center;
}

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

.font-mono {
    font-family: var(--font-mono);
}

/* ==================== Loading State ==================== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-light);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ==================== Scrollbar ==================== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: 3px;
}

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

/* Dark scrollbar for console */
.console ::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.2);
}

.console ::-webkit-scrollbar-thumb:hover {
    background: rgba(255,255,255,0.3);
}