:root {
    --bg-dark: #0A0D14;
    --bg-card: rgba(18, 24, 38, 0.75);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.16);
    --text-primary: #F3F4F6;
    --text-secondary: #9CA3AF;
    --text-muted: #6B7280;
    --accent-blue: #3B82F6;
    --accent-blue-hover: #2563EB;
    --accent-purple: #8B5CF6;
    --accent-emerald: #10B981;
    --accent-red: #EF4444;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.5;
    min-height: 100vh;
    background-image: 
        radial-gradient(circle at 15% 15%, rgba(59, 130, 246, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 85% 85%, rgba(139, 92, 246, 0.08) 0%, transparent 40%);
}

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

.app-container {
    max-width: 1380px;
    margin: 0 auto;
    padding: 24px;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 14px;
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #3B82F6, #8B5CF6);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
}

.logo-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(to right, #FFFFFF, #93C5FD);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.badge-host {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: 9999px;
    font-size: 0.82rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.dot-online {
    width: 8px;
    height: 8px;
    background: var(--accent-emerald);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-emerald);
}

.badge-status {
    padding: 6px 12px;
    border-radius: 9999px;
    font-size: 0.82rem;
    font-weight: 500;
}

.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: #34D399;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: #FBBF24;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

/* Grid Layout */
.main-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 24px;
}

@media (max-width: 1024px) {
    .main-grid {
        grid-template-columns: 1fr;
    }
}

/* Cards */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.card-header {
    margin-bottom: 20px;
}

.card-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.subtext {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Voice Visualizer */
.voice-visualizer-container {
    position: relative;
    background: rgba(10, 15, 25, 0.6);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 20px;
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#visualizerCanvas {
    width: 100%;
    height: 100%;
    display: block;
}

.call-state-label {
    position: absolute;
    bottom: 12px;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    padding: 4px 12px;
    border-radius: 9999px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

/* Controls */
.controls-row {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    outline: none;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, #3B82F6, #2563EB);
    color: white;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.35);
}

.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, #2563EB, #1D4ED8);
    transform: translateY(-1px);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.15);
    color: #F87171;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-danger:hover:not(:disabled) {
    background: var(--accent-red);
    color: white;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-hover);
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none !important;
}

.btn-xs {
    padding: 4px 10px;
    font-size: 0.78rem;
}

/* Transcript Feed */
.transcript-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 12px;
}

.transcript-header h3 {
    font-size: 0.95rem;
    font-weight: 600;
}

.transcript-feed {
    height: 300px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-right: 6px;
}

.transcript-feed::-webkit-scrollbar {
    width: 5px;
}

.transcript-feed::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 9999px;
}

.transcript-empty {
    margin: auto;
    font-size: 0.88rem;
    color: var(--text-muted);
    text-align: center;
}

.bubble {
    padding: 10px 14px;
    border-radius: var(--radius-md);
    max-width: 85%;
    font-size: 0.9rem;
    animation: fadeIn 0.25s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.bubble-user {
    align-self: flex-end;
    background: rgba(59, 130, 246, 0.2);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: #DBEAFE;
    border-bottom-right-radius: 2px;
}

.bubble-agent {
    align-self: flex-start;
    background: rgba(139, 92, 246, 0.15);
    border: 1px solid rgba(139, 92, 246, 0.25);
    color: #EDE9FE;
    border-bottom-left-radius: 2px;
}

.bubble-tool {
    align-self: center;
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.25);
    color: #A7F3D0;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    border-radius: var(--radius-sm);
    padding: 6px 12px;
}

/* Tabs */
.tabs-nav {
    display: flex;
    gap: 6px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
    margin-bottom: 20px;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.tab-content {
    display: none;
}

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

.tab-header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.tab-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* Calls List */
.calls-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 480px;
    overflow-y: auto;
}

.call-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px;
    transition: border-color 0.2s ease;
}

.call-item:hover {
    border-color: var(--border-hover);
}

.call-item-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.call-caller {
    font-weight: 600;
    font-size: 0.95rem;
}

.call-badge {
    font-size: 0.72rem;
    padding: 2px 8px;
    border-radius: 9999px;
    text-transform: uppercase;
    font-weight: 600;
}

.call-badge-completed {
    background: rgba(16, 185, 129, 0.15);
    color: #34D399;
}

.call-badge-progress {
    background: rgba(59, 130, 246, 0.15);
    color: #60A5FA;
}

.call-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    gap: 16px;
}

/* Forms */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    background: rgba(10, 15, 25, 0.6);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 10px 12px;
    font-size: 0.9rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent-blue);
}

.helper-text {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 4px;
    display: block;
}

.copy-input-group {
    display: flex;
    gap: 8px;
}

.info-box {
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-md);
    padding: 14px;
    font-size: 0.85rem;
    color: #BFDBFE;
    margin-top: 20px;
}

.info-box ul {
    margin-top: 8px;
    padding-left: 20px;
}

.info-box li {
    margin-bottom: 4px;
}