/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #3B82F6;
    --primary-dark: #2563EB;
    --primary-light: #60A5FA;
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --danger-color: #EF4444;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: var(--gray-900);
    background-color: var(--gray-50);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Header styles */
header {
    text-align: center;
    margin-bottom: 3rem;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.logo h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
}

.tagline {
    color: var(--gray-600);
    font-size: 1.125rem;
}

/* Form styles */
.call-form {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 2rem;
    align-items: start;
    margin-bottom: 2rem;
}

.caller-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--gray-700);
}

.section-header svg {
    width: 1.5rem;
    height: 1.5rem;
    color: var(--primary-color);
}

.section-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 500;
    color: var(--gray-700);
    font-size: 0.875rem;
}

.form-group input,
.form-group select {
    padding: 0.625rem 0.875rem;
    font-size: 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    background-color: white;
    color: var(--gray-900);
    transition: all 0.15s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgb(59 130 246 / 0.1);
}

.form-group input:invalid:not(:placeholder-shown) {
    border-color: var(--danger-color);
}

.helper-text {
    font-size: 0.75rem;
    color: var(--gray-500);
}

.arrow-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 4rem;
}

/* Button styles */
.bridge-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    background-color: var(--primary-color);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.15s ease;
}

.bridge-btn:hover:not(:disabled) {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.bridge-btn:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: var(--shadow);
}

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

.bridge-btn svg {
    width: 1.25rem;
    height: 1.25rem;
}

/* Call status styles */
.call-status {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
}

.call-status h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--gray-900);
}

.status-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.status-card {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 1.5rem;
    background-color: var(--gray-50);
}

.status-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.status-label {
    font-weight: 600;
    color: var(--gray-700);
}

.phone-display {
    font-size: 0.875rem;
    color: var(--gray-500);
    font-family: monospace;
}

.status-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-text {
    font-weight: 500;
}

.status-icon {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    display: inline-block;
}

.status-icon.connecting {
    background-color: var(--warning-color);
    animation: pulse 1.5s ease-in-out infinite;
}

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

.status-icon.error {
    background-color: var(--danger-color);
}

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

.status-details {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.875rem;
    color: var(--gray-600);
}

.status-details strong {
    color: var(--gray-900);
}

/* Translation metrics */
.translation-metrics {
    border-top: 1px solid var(--gray-200);
    padding-top: 1.5rem;
    margin-bottom: 1.5rem;
}

.translation-metrics h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 1rem;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.metric {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.metric-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
}

.metric-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-900);
}

/* End call button */
.end-call-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    background-color: var(--danger-color);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.15s ease;
}

.end-call-btn:hover {
    background-color: #DC2626;
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.end-call-btn svg {
    width: 1.25rem;
    height: 1.25rem;
}

/* Error display */
.error-display {
    background-color: #FEE2E2;
    border: 1px solid #FECACA;
    color: var(--danger-color);
    padding: 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.error-display::before {
    content: "⚠️";
    font-size: 1.25rem;
}


/* Utility classes */
.hidden {
    display: none !important;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .arrow-container {
        padding: 0;
        transform: rotate(90deg);
    }
    
    .status-grid {
        grid-template-columns: 1fr;
    }
    
    .call-form,
    .call-status {
        padding: 1.5rem;
    }
    
    .logo h1 {
        font-size: 2rem;
    }
}