/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 900px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

/* Header */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Main Content */
.main-content {
    padding: 30px;
}

/* Status Panel */
.status-panel {
    margin-bottom: 20px;
}

.status-indicator {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    background: #f7f9fc;
    border-radius: 10px;
    border-left: 4px solid #667eea;
}

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #94a3b8;
    margin-right: 12px;
    transition: background-color 0.3s;
}

.status-indicator.connected .status-dot {
    background: #10b981;
    box-shadow: 0 0 10px #10b981;
    animation: pulse 2s infinite;
}

.status-indicator.recording .status-dot {
    background: #ef4444;
    box-shadow: 0 0 10px #ef4444;
    animation: pulse 1s infinite;
}

.status-indicator.processing .status-dot {
    background: #f59e0b;
    box-shadow: 0 0 10px #f59e0b;
    animation: pulse 1.5s infinite;
}

.status-indicator.speaking .status-dot {
    background: #3b82f6;
    box-shadow: 0 0 10px #3b82f6;
    animation: pulse 1s infinite;
}

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

.status-text {
    font-weight: 500;
    color: #1e293b;
}

/* Conversation Area */
.conversation-area {
    margin-bottom: 20px;
}

.conversation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.conversation-header h2 {
    font-size: 1.5rem;
    color: #1e293b;
}

.btn-clear {
    padding: 8px 16px;
    background: #f1f5f9;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    color: #64748b;
    transition: all 0.2s;
}

.btn-clear:hover {
    background: #e2e8f0;
    color: #475569;
}

.conversation-transcript {
    height: 400px;
    overflow-y: auto;
    padding: 20px;
    background: #f8fafc;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
}

.welcome-message {
    text-align: center;
    color: #64748b;
    padding: 60px 20px;
}

.welcome-message p {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.help-text {
    font-size: 0.9rem;
    opacity: 0.8;
}

.message {
    margin-bottom: 15px;
    animation: fadeIn 0.3s;
}

.message-user {
    text-align: right;
}

.message-bubble {
    display: inline-block;
    padding: 12px 18px;
    border-radius: 18px;
    max-width: 80%;
    word-wrap: break-word;
}

.message-user .message-bubble {
    background: #667eea;
    color: white;
}

.message-assistant .message-bubble {
    background: #e2e8f0;
    color: #1e293b;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Control Panel */
.control-panel {
    text-align: center;
    margin-bottom: 20px;
}

.btn-primary {
    padding: 16px 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-large {
    padding: 20px 60px;
    font-size: 1.2rem;
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.btn-icon {
    font-size: 1.5rem;
}

.btn-primary.active {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    animation: breathe 2s infinite;
}

@keyframes breathe {
    0%, 100% {
        box-shadow: 0 4px 15px rgba(239, 68, 68, 0.4);
    }
    50% {
        box-shadow: 0 6px 25px rgba(239, 68, 68, 0.6);
    }
}

.btn-secondary {
    padding: 16px 40px;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.6);
}

.btn-secondary:active {
    transform: translateY(0);
}

.btn-interrupt {
    margin-left: 15px;
}

/* Volume Indicator */
.volume-indicator {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 4px;
    height: 40px;
}

.volume-bars {
    display: flex;
    align-items: flex-end;
    gap: 6px;
}

.volume-bar {
    width: 6px;
    height: 8px;
    background: #cbd5e1;
    border-radius: 3px;
    transition: all 0.1s;
}

.volume-indicator.active .volume-bar:nth-child(1) {
    height: 15px;
    background: #10b981;
    animation: volumeWave 0.6s infinite;
}

.volume-indicator.active .volume-bar:nth-child(2) {
    height: 25px;
    background: #10b981;
    animation: volumeWave 0.6s infinite 0.1s;
}

.volume-indicator.active .volume-bar:nth-child(3) {
    height: 35px;
    background: #10b981;
    animation: volumeWave 0.6s infinite 0.2s;
}

.volume-indicator.active .volume-bar:nth-child(4) {
    height: 25px;
    background: #10b981;
    animation: volumeWave 0.6s infinite 0.3s;
}

.volume-indicator.active .volume-bar:nth-child(5) {
    height: 15px;
    background: #10b981;
    animation: volumeWave 0.6s infinite 0.4s;
}

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

/* Summary Panel */
.summary-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 600px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    z-index: 1000;
    max-height: 80vh;
    overflow-y: auto;
}

.summary-panel.hidden {
    display: none;
}

.summary-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #e2e8f0;
}

.summary-header h2 {
    color: #1e293b;
}

.btn-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: #64748b;
    line-height: 1;
    transition: color 0.2s;
}

.btn-close:hover {
    color: #1e293b;
}

.summary-content {
    padding: 20px;
}

.summary-section {
    margin-bottom: 20px;
}

.summary-section h3 {
    color: #667eea;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.summary-section p,
.summary-section ul {
    color: #475569;
    line-height: 1.6;
}

.summary-section ul {
    padding-left: 20px;
}

.summary-section li {
    margin-bottom: 8px;
}

/* Settings Panel */
.settings-panel {
    margin-top: 20px;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    overflow: hidden;
}

.settings-panel summary {
    padding: 15px 20px;
    background: #f8fafc;
    cursor: pointer;
    font-weight: 600;
    color: #475569;
    user-select: none;
}

.settings-panel summary:hover {
    background: #f1f5f9;
}

.settings-content {
    padding: 20px;
}

.setting-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.setting-item label {
    min-width: 140px;
    font-weight: 500;
    color: #475569;
}

.setting-item select,
.setting-item input[type="range"] {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    font-size: 1rem;
}

.setting-item select:focus,
.setting-item input:focus {
    outline: none;
    border-color: #667eea;
}

/* Footer */
.footer {
    text-align: center;
    padding: 20px;
    background: #f8fafc;
    color: #64748b;
    font-size: 0.9rem;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 999;
}

.loading-overlay.hidden {
    display: none;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f4f6;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.loading-text {
    color: white;
    margin-top: 20px;
    font-size: 1.1rem;
}

/* Error Toast */
.error-toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #fee2e2;
    border: 1px solid #ef4444;
    border-radius: 10px;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
    animation: slideIn 0.3s;
    z-index: 1001;
}

.error-toast.hidden {
    display: none;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
    }
    to {
        transform: translateX(0);
    }
}

.error-icon {
    font-size: 1.5rem;
}

.error-message {
    color: #991b1b;
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header h1 {
        font-size: 2rem;
    }

    .conversation-transcript {
        height: 300px;
    }

    .btn-large {
        padding: 16px 40px;
        font-size: 1rem;
    }

    .summary-panel {
        width: 95%;
    }
}

/* Scrollbar Styling */
.conversation-transcript::-webkit-scrollbar {
    width: 8px;
}

.conversation-transcript::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 10px;
}

.conversation-transcript::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 10px;
}

.conversation-transcript::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}