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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #0f1117;
    color: #e4e4e7;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 2rem 1rem;
}

.container {
    width: 100%;
    max-width: 680px;
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

h1 {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: #71717a;
    margin-top: 0.5rem;
    font-size: 0.9rem;
}

.controls {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.btn {
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-primary {
    background: #3b82f6;
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: #2563eb;
    transform: translateY(-1px);
}

.btn-danger {
    background: #ef4444;
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
}

.voice-panel {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    justify-content: center;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: #1c1e26;
    border-radius: 8px;
}

.voice-panel label {
    font-weight: 600;
    color: #a1a1aa;
}

.voice-panel select {
    padding: 0.5rem 1rem;
    background: #27272a;
    color: #e4e4e7;
    border: 1px solid #3f3f46;
    border-radius: 6px;
    font-size: 0.9rem;
    cursor: pointer;
}

.voice-panel select:focus {
    outline: none;
    border-color: #3b82f6;
}

.status {
    text-align: center;
    padding: 0.75rem;
    background: #1c1e26;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    color: #a1a1aa;
}

.transcript {
    background: #1c1e26;
    border-radius: 8px;
    padding: 1rem;
    max-height: 50vh;
    overflow-y: auto;
}

.transcript-header {
    font-weight: 700;
    color: #a1a1aa;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.message {
    padding: 0.6rem 0.8rem;
    margin-bottom: 0.5rem;
    border-radius: 6px;
    font-size: 0.95rem;
    line-height: 1.5;
}

.message.user {
    background: #1e3a5f;
    border-left: 3px solid #3b82f6;
}

.message.agent {
    background: #2d1f4e;
    border-left: 3px solid #a78bfa;
}

.message.system {
    background: #27272a;
    color: #71717a;
    font-style: italic;
    font-size: 0.85rem;
}

.role {
    font-weight: 700;
    margin-right: 0.5rem;
}

.message.user .role { color: #60a5fa; }
.message.agent .role { color: #a78bfa; }

/* Scrollbar */
.transcript::-webkit-scrollbar { width: 6px; }
.transcript::-webkit-scrollbar-track { background: transparent; }
.transcript::-webkit-scrollbar-thumb { background: #3f3f46; border-radius: 3px; }