/* DirectCall Styles - Modern Responsive Design */

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

:root {
    /* Modern Color Palette */
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --primary-light: #dbeafe;
    --secondary-color: #6366f1;
    --secondary-hover: #4f46e5;
    --accent-color: #06b6d4;
    --accent-hover: #0891b2;
    
    /* Status Colors */
    --success-color: #10b981;
    --success-hover: #059669;
    --error-color: #ef4444;
    --error-hover: #dc2626;
    --warning-color: #f59e0b;
    --warning-hover: #d97706;
    --info-color: #3b82f6;
    
    /* Neutral Colors */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --text-inverse: #ffffff;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-overlay: rgba(15, 23, 42, 0.8);
    
    /* Border Colors */
    --border-primary: #e2e8f0;
    --border-secondary: #cbd5e1;
    --border-focus: var(--primary-color);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: all 0.15s ease;
    --transition: all 0.2s ease;
    --transition-slow: all 0.3s ease;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    
    /* Typography */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Legacy variables for compatibility */
    --text-color: var(--text-primary);
    --text-light: var(--text-tertiary);
    --bg-color: var(--bg-secondary);
    --white: var(--bg-primary);
    --border-color: var(--border-primary);
    --border-radius: var(--radius-md);
    --border-radius-lg: var(--radius-lg);
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
    :root {
        /* Dark Mode Color Palette */
        --primary-color: #60a5fa;
        --primary-hover: #3b82f6;
        --primary-light: #1e3a8a;
        --secondary-color: #818cf8;
        --secondary-hover: #6366f1;
        --accent-color: #22d3ee;
        --accent-hover: #06b6d4;
        
        /* Dark Mode Status Colors */
        --success-color: #34d399;
        --success-hover: #10b981;
        --error-color: #f87171;
        --error-hover: #ef4444;
        --warning-color: #fbbf24;
        --warning-hover: #f59e0b;
        --info-color: #60a5fa;
        
        /* Dark Mode Neutral Colors */
        --text-primary: #f8fafc;
        --text-secondary: #cbd5e1;
        --text-tertiary: #94a3b8;
        --text-inverse: #0f172a;
        
        /* Dark Mode Background Colors */
        --bg-primary: #1e293b;
        --bg-secondary: #334155;
        --bg-tertiary: #475569;
        --bg-overlay: rgba(15, 23, 42, 0.9);
        
        /* Dark Mode Border Colors */
        --border-primary: #475569;
        --border-secondary: #64748b;
        --border-focus: var(--primary-color);
    }
    
    body {
        background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    }
    
    .header {
        background: rgba(0, 0, 0, 0.2);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .header::before {
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
    font-size: var(--font-size-base);
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.app-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    padding: var(--space-md) 0;
    position: relative;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    pointer-events: none;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    text-align: center;
    position: relative;
    z-index: 1;
}

.logo {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-inverse);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    margin-bottom: var(--space-xs);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--text-inverse) 0%, rgba(255, 255, 255, 0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.logo-icon {
    font-size: var(--font-size-4xl);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.tagline {
    font-size: var(--font-size-base);
    color: rgba(255, 255, 255, 0.85);
    font-weight: 400;
    letter-spacing: 0.01em;
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

/* Screen Management */
.screen {
    display: none;
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    animation: fadeIn 0.3s ease-out;
}

.screen.active {
    display: block;
}

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

/* Home Screen */
#home-screen.active {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    padding: var(--space-lg);
}

/* Meeting Creation Screen */
#meeting-creation-screen.active {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    padding: var(--space-lg);
    gap: var(--space-lg);
}

/* Meeting Room Screen */
#meeting-room-screen.active {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: var(--space-xs);
    gap: var(--space-xs);
    justify-content: stretch;
    overflow: hidden;
    height: 100%;
}

/* Hide header and tagline on call page only */
body.call-page .header {
    display: none;
}

body.call-page .tagline {
    display: none;
}

#meeting-creation-screen .meeting-url-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

#meeting-creation-screen .meeting-url-container {
    display: flex;
    gap: var(--space-sm);
    align-items: center;
}

#meeting-creation-screen .meeting-url-input {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-lg);
    padding: var(--space-md) var(--space-lg);
    color: var(--text-inverse);
    font-size: var(--font-size-base);
    min-width: 400px;
    backdrop-filter: blur(10px);
}

#meeting-creation-screen .meeting-url-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

#meeting-creation-screen .meeting-actions {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
}

#meeting-creation-screen .meeting-actions .btn {
    width: 200px;
    height: 80px;
    font-size: var(--font-size-2xl);
    font-weight: 800;
    border-radius: 40px;
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.3);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    color: var(--text-inverse);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    letter-spacing: 0.02em;
    display: flex;
    align-items: center;
    justify-content: center;
}

#meeting-creation-screen .meeting-actions .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

#meeting-creation-screen .meeting-actions .btn:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 12px 48px rgba(59, 130, 246, 0.4);
}

#meeting-creation-screen .meeting-actions .btn:hover::before {
    left: 100%;
}

#meeting-creation-screen .meeting-actions .btn:active {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.3);
}

#meeting-creation-screen .meeting-actions .btn-secondary {
    background: linear-gradient(135deg, var(--neutral-600), var(--neutral-700));
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

#meeting-creation-screen .meeting-actions .btn-secondary:hover {
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.3);
}

.new-call-btn {
    width: 500px;
    height: 150px;
    font-size: 3.5rem;
    font-weight: 800;
    border-radius: 75px;
    box-shadow: 0 16px 64px rgba(59, 130, 246, 0.5);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    color: var(--text-inverse);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    letter-spacing: 0.02em;
}

.new-call-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.new-call-btn:hover {
    transform: translateY(-8px) scale(1.1);
    box-shadow: 0 24px 80px rgba(59, 130, 246, 0.6);
}

.new-call-btn:hover::before {
    left: 100%;
}

.new-call-btn:active {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 16px 64px rgba(59, 130, 246, 0.5);
}

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    align-items: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    min-width: 220px;
    justify-content: center;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.01em;
    box-shadow: var(--shadow-sm);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: var(--shadow-sm) !important;
}

.btn:disabled:hover {
    transform: none !important;
    box-shadow: var(--shadow-sm) !important;
}

.btn:disabled::before {
    display: none;
}

.btn.loading {
    pointer-events: none;
    color: transparent;
}

.btn.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: var(--text-inverse);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-hover), var(--primary-color));
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 2px solid var(--border-primary);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--text-inverse);
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: none;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-small {
    padding: var(--space-sm) var(--space-md);
    min-width: auto;
    border-radius: var(--radius);
    font-size: var(--font-size-sm);
}

.btn-icon {
    font-size: var(--font-size-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.divider {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-primary), transparent);
}


.input-field {
    padding: var(--space-md) var(--space-lg);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: var(--transition);
    width: 100%;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-weight: 400;
}

.input-field::placeholder {
    color: var(--text-tertiary);
    font-weight: 400;
}

.input-field:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    background: var(--bg-primary);
}

.input-field:hover {
    border-color: var(--border-secondary);
}

/* Meeting Creation Screen */
.meeting-creation-content {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-primary);
    position: relative;
    overflow: hidden;
}

.meeting-creation-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--success-color), var(--primary-color));
}

.meeting-creation-content h2 {
    font-size: var(--font-size-3xl);
    font-weight: 600;
    margin-bottom: var(--space-xl);
    text-align: center;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.meeting-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.meeting-id-display,
.meeting-url-display {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.meeting-id-display label,
.meeting-url-display label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.meeting-id-container,
.meeting-url-container {
    display: flex;
    gap: var(--space-sm);
}

.meeting-id-input,
.meeting-url-input {
    flex: 1;
    padding: var(--space-md);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-weight: 500;
}

.qr-code-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
}

.qr-code-container label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.qr-code {
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--bg-primary);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    min-height: 220px;
    min-width: 220px;
    box-shadow: var(--shadow-sm);
}

.qr-loading {
    color: var(--text-light);
    font-size: 0.9rem;
    text-align: center;
}

.qr-error {
    text-align: center;
    color: var(--error-color);
}

.qr-error-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.qr-error-text {
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.qr-error-details {
    font-size: 0.8rem;
    color: var(--text-light);
}

.simple-qr-code {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
}

.qr-placeholder {
    text-align: center;
    padding: 1rem;
    background: var(--white);
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    min-height: 200px;
    min-width: 200px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.qr-icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    opacity: 0.7;
}

.qr-text {
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.qr-url {
    font-size: 0.7rem;
    color: var(--text-light);
    word-break: break-all;
    max-width: 180px;
    line-height: 1.2;
}

.meeting-actions {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    flex-wrap: wrap;
}

/* Meeting Room Screen */
.meeting-room-content {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-xl);
    height: 85vh;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-primary);
    position: relative;
    overflow: hidden;
}

.meeting-room-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-color));
}

/* Connection status removed */

.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--text-inverse);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--warning-color);
    animation: pulse 2s infinite;
    box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.4);
}

.status-indicator.connected .status-dot {
    background: var(--success-color);
    animation: none;
}

/* Connection Quality Indicators */
.status-indicator.quality-excellent .status-dot {
    background: var(--success-color);
    box-shadow: 0 0 12px rgba(16, 185, 129, 0.6);
    animation: none;
}

.status-indicator.quality-good .status-dot {
    background: #22c55e;
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.5);
    animation: none;
}

.status-indicator.quality-fair .status-dot {
    background: var(--warning-color);
    box-shadow: 0 0 6px rgba(245, 158, 11, 0.4);
    animation: pulse 1.5s infinite;
}

.status-indicator.quality-poor .status-dot {
    background: var(--error-color);
    box-shadow: 0 0 6px rgba(239, 68, 68, 0.4);
    animation: pulse 1s infinite;
}

.participant-count {
    font-size: var(--font-size-sm);
    color: var(--text-inverse);
    font-weight: 500;
    opacity: 0.8;
}

/* Meeting Actions Container */
.meeting-actions {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-top: var(--space-sm);
}

.qr-code-container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--space-lg);
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-primary);
    box-shadow: var(--shadow-sm);
}

#meeting-qr-code {
    width: 140px;
    height: 140px;
}

.meeting-link-container {
    display: flex;
    gap: var(--space-sm);
    width: 100%;
    max-width: 500px;
    align-items: center;
}

.meeting-link-input {
    flex: 1;
    padding: var(--space-md) var(--space-lg);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-inverse);
    font-size: var(--font-size-sm);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, sans-serif;
    font-weight: 500;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.meeting-link-input::placeholder {
    color: rgba(255, 255, 255, 0.6);
    font-style: italic;
}

.meeting-link-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
    background: rgba(255, 255, 255, 0.15);
}

/* Copy control button styling */
.copy-control {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-inverse);
}

.copy-control:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px) scale(1.05);
}

.copy-control:active {
    transform: translateY(-1px) scale(1.02);
}

.copy-control.copied {
    background: rgba(34, 197, 94, 0.2) !important;
    border-color: rgba(34, 197, 94, 0.4) !important;
    transform: scale(1.1);
    box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.2);
    animation: copySuccess 0.3s ease-out;
}

.copy-control.copied:hover {
    background: rgba(34, 197, 94, 0.25) !important;
    border-color: rgba(34, 197, 94, 0.5) !important;
    transform: scale(1.1);
    box-shadow: 0 0 0 6px rgba(34, 197, 94, 0.3);
}

.copy-control.copied .control-icon {
    color: #22c55e !important;
    transform: scale(1.2);
    transition: all 0.2s ease;
}

@keyframes copySuccess {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4);
    }
    50% {
        transform: scale(1.15);
        box-shadow: 0 0 0 8px rgba(34, 197, 94, 0.1);
    }
    100% {
        transform: scale(1.1);
        box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.2);
    }
}

.video-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    margin-bottom: var(--space-sm);
    min-height: 0;
    overflow: hidden;
}

.video-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    height: 100%;
    min-height: 0;
    transition: all 0.3s ease;
    flex: 1;
}

/* Picture-in-Picture mode when remote participant joins */
.video-grid.pip-mode {
    display: block;
    position: relative;
    height: 100%;
    min-height: 0;
}

.video-grid.pip-mode .video-wrapper.remote-video {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    min-height: 0;
}

.video-grid.pip-mode .video-wrapper.local-video {
    position: absolute !important;
    bottom: var(--space-md);
    right: var(--space-md);
    width: 30% !important;
    height: 30% !important;
    max-height: 30% !important;
    min-height: unset !important;
    z-index: 2;
    background: transparent !important;
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: none;
    padding: 0 !important;
    margin: 0 !important;
    display: flex !important;
    align-items: flex-start !important;
    justify-content: flex-start !important;
}

.video-grid.pip-mode .video-wrapper.local-video video {
    object-fit: contain !important;
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100% !important;
    height: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    min-height: unset !important;
}

.video-grid.pip-mode .video-wrapper.local-video .video-label {
    display: none;
}

/* Alone mode - when participant is waiting for others */
.video-grid.alone-mode {
    display: flex;
    justify-content: center;
    align-items: center;
    grid-template-columns: none;
    gap: 0;
}

.video-grid.alone-mode .video-wrapper.local-video {
    max-width: 800px;
    width: 100%;
    height: 100%;
    min-height: 0;
}

.video-grid.alone-mode .video-wrapper.local-video video {
    object-fit: cover !important;
    width: 100%;
    height: 100%;
    min-height: 0;
}

.video-wrapper {
    position: relative;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 100%;
    min-height: 0;
    border: 1px solid var(--border-primary);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
}

.video-wrapper.remote-video {
    transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out, display 0.3s ease-in-out;
}

.video-wrapper video {
    width: 100%;
    height: 100%;
    min-height: 0;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.video-label {
    position: absolute;
    top: var(--space-sm);
    left: var(--space-sm);
    background: var(--bg-overlay);
    color: var(--text-inverse);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius);
    font-size: var(--font-size-xs);
    font-weight: 600;
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.video-controls {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--space-lg);
    background: transparent;
    backdrop-filter: none;
    border-radius: 0;
    border: none;
    box-shadow: none;
    padding: var(--space-lg) var(--space-2xl);
    z-index: 10;
}

.control-btn {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-inverse);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: var(--font-size-lg);
    backdrop-filter: blur(8px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    position: relative;
    overflow: hidden;
}

.control-btn:active {
    transform: translateY(1px) scale(0.98);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.control-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.video-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.95);
    border-radius: var(--radius-lg);
}

.placeholder-content {
    text-align: center;
    color: var(--text-inverse);
}

.placeholder-icon {
    font-size: var(--font-size-4xl);
    display: block;
    margin-bottom: var(--space-sm);
    opacity: 0.6;
}

.placeholder-text {
    font-size: var(--font-size-sm);
    font-weight: 500;
}



.main-control {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    backdrop-filter: blur(15px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.main-control:hover {
    background: rgba(255, 255, 255, 0.18);
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
    border-color: rgba(255, 255, 255, 0.25);
}

.main-control:active {
    transform: translateY(0) scale(0.98);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.end-call {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.9), rgba(220, 38, 38, 0.9)) !important;
    border-color: rgba(220, 38, 38, 0.8) !important;
    width: 56px !important;
    height: 56px !important;
    box-shadow: 0 4px 16px rgba(239, 68, 68, 0.3) !important;
}

.end-call:hover {
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.95), rgba(185, 28, 28, 0.95)) !important;
    border-color: rgba(185, 28, 28, 0.9) !important;
    transform: translateY(-2px) scale(1.05) !important;
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.4) !important;
}

/* Video disabled state */
.video-disabled {
    border-color: rgba(239, 68, 68, 0.6) !important;
    background: rgba(107, 114, 128, 0.2) !important;
    opacity: 0.6;
    transform: scale(0.95);
}

.video-disabled .control-icon {
    opacity: 0.5;
    filter: grayscale(0.8);
}

.video-disabled:hover {
    background: rgba(107, 114, 128, 0.25) !important;
    transform: scale(0.95) !important;
}

/* Microphone disabled state */
.mic-disabled {
    border-color: rgba(239, 68, 68, 0.6) !important;
    background: rgba(107, 114, 128, 0.2) !important;
    opacity: 0.6;
    transform: scale(0.95);
}

.mic-disabled .control-icon {
    opacity: 0.5;
    filter: grayscale(0.8);
}

.mic-disabled:hover {
    background: rgba(107, 114, 128, 0.25) !important;
    transform: scale(0.95) !important;
}


.control-icon {
    font-size: 1.5rem;
    color: var(--text-inverse);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
    transition: all 0.3s ease;
}

.main-control:hover .control-icon {
    transform: scale(1.1);
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.4));
}

.control-text {
    display: none;
}

/* Error Screen */
.error-content {
    text-align: center;
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl) var(--space-xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-primary);
    position: relative;
    overflow: hidden;
}

.error-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--error-color), var(--warning-color));
}

.error-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-lg);
    opacity: 0.8;
}

.error-content h2 {
    font-size: var(--font-size-3xl);
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.error-content p {
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
    font-size: var(--font-size-lg);
    line-height: 1.6;
}

.error-actions {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    flex-wrap: wrap;
}

/* Loading Screen */
.loading-content {
    text-align: center;
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl) var(--space-xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-primary);
    position: relative;
    overflow: hidden;
}

.loading-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border-primary);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-lg);
}

/* Progress Bar */
.progress-bar {
    width: 100%;
    max-width: 320px;
    margin: var(--space-lg) auto 0;
    background: var(--border-primary);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
    height: 8px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-full);
    transition: width 0.4s ease;
    width: 0%;
    box-shadow: 0 0 8px rgba(59, 130, 246, 0.3);
}

.progress-text {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    margin-top: var(--space-sm);
    font-weight: 500;
}



/* Toast Notifications */
.toast {
    position: fixed;
    top: var(--space-xl);
    right: var(--space-xl);
    background: var(--text-primary);
    color: var(--text-inverse);
    padding: var(--space-lg) var(--space-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: 1001;
    transform: translateX(100%);
    transition: var(--transition);
    border: 1px solid var(--border-primary);
    backdrop-filter: blur(8px);
    max-width: 400px;
    font-weight: 500;
}

.toast.show {
    transform: translateX(0);
}

.toast.warning {
    background: var(--warning-color);
    color: var(--text-inverse);
    border-color: var(--warning-hover);
}

.toast.success {
    background: var(--success-color);
    color: var(--text-inverse);
    border-color: var(--success-hover);
}

.toast.error {
    background: var(--error-color);
    color: var(--text-inverse);
    border-color: var(--error-hover);
}

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

@keyframes pulse {
    0%, 100% { 
        opacity: 1; 
        transform: scale(1);
    }
    50% { 
        opacity: 0.7; 
        transform: scale(1.05);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .logo {
        font-size: var(--font-size-3xl);
    }
    
    .tagline {
        font-size: var(--font-size-base);
    }
    
    .home-content,
    .meeting-creation-content,
    .error-content,
    .loading-content {
        padding: var(--space-xl) var(--space-lg);
    }
    
    .new-call-btn {
        width: 380px;
        height: 120px;
        font-size: 2.8rem;
        border-radius: 60px;
    }
    
    
    #meeting-creation-screen .meeting-url-input {
        min-width: 300px;
        font-size: var(--font-size-sm);
    }
    
    #meeting-creation-screen .meeting-actions {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    #meeting-creation-screen .meeting-actions .btn {
        width: 160px;
        height: 60px;
        font-size: var(--font-size-xl);
    }
    
    .video-container {
        min-height: 0;
    }
    
    .video-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
        min-height: 0;
    }
    
    .video-grid.pip-mode .video-wrapper.local-video {
        width: 30%;
        height: 30%;
        max-height: 30%;
        min-height: unset;
        bottom: var(--space-sm);
        right: var(--space-sm);
    }
    
    .video-grid.alone-mode .video-wrapper.local-video {
        max-width: 100%;
        height: 100%;
        min-height: 0;
    }
    
    .video-grid.alone-mode .video-wrapper.local-video video {
        min-height: 0;
    }
    
    .video-controls {
        gap: var(--space-md);
        padding: var(--space-md) var(--space-lg);
        bottom: var(--space-md);
        background: transparent;
    }
    
    .control-btn {
        width: 52px;
        height: 52px;
    }
    
    .main-control {
        width: 56px;
        height: 56px;
    }
    
    .end-call {
        width: 60px !important;
        height: 60px !important;
    }
    
    
    .control-icon {
        font-size: 1.25rem;
    }
    
    .meeting-actions,
    .error-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 320px;
    }
    
    
    .toast {
        top: var(--space-lg);
        right: var(--space-lg);
        left: var(--space-lg);
        transform: translateY(-100%);
    }
    
    .toast.show {
        transform: translateY(0);
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: 0;
    }
    
    #home-screen.active {
        padding: var(--space-lg);
    }
    
    #meeting-creation-screen.active {
        padding: var(--space-lg);
    }
    
    .meeting-room-content {
        padding: var(--space-lg);
        height: 90vh;
    }
    
    /* Connection status removed */
    
    .meeting-invite-section {
        margin-bottom: var(--space-lg);
        padding: var(--space-md);
    }
    
    .invite-content {
        gap: var(--space-md);
    }
    
    .invite-text h3 {
        font-size: var(--font-size-base);
    }
    
    .invite-text p {
        font-size: var(--font-size-xs);
    }
    
    #meeting-qr-code {
        width: 120px;
        height: 120px;
    }
    
    .meeting-actions {
        flex-direction: column;
        gap: var(--space-sm);
        align-items: flex-start;
    }
    
    /* Copy link button moved to meeting controls */
    
    .video-wrapper {
        height: 100%;
        min-height: 0;
    }
    
    .video-wrapper video {
        min-height: 0;
    }
    
    .placeholder-icon {
        font-size: var(--font-size-3xl);
    }
    
    .placeholder-text {
        font-size: var(--font-size-xs);
    }
}

/* Permission Help Styles */
.permission-help {
    margin-top: var(--space-2xl);
    padding: var(--space-xl);
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(8px);
}

.permission-section h3 {
    color: var(--text-inverse);
    margin-bottom: var(--space-lg);
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.permission-section p {
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--space-xl);
    font-size: var(--font-size-base);
    line-height: 1.6;
}

.permission-buttons {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
}

.permission-buttons .btn {
    flex: 1;
    min-width: 160px;
}

.btn-outline {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: var(--text-inverse);
    transition: var(--transition);
    backdrop-filter: blur(8px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.permission-guide {
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin-top: var(--space-lg);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.permission-guide h4 {
    color: var(--text-inverse);
    margin-bottom: var(--space-lg);
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.browser-guide,
.device-guide {
    margin-bottom: var(--space-xl);
}

.browser-item,
.device-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
    border-left: 3px solid var(--primary-color);
    backdrop-filter: blur(4px);
}

.browser-item strong,
.device-item strong {
    color: var(--text-inverse);
    display: block;
    margin-bottom: var(--space-sm);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.browser-item p,
.device-item p {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    margin: 0;
}

/* Mobile Permission Section */
.mobile-permission-section {
    margin-top: var(--space-xl);
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(8px);
}

.mobile-permission-section .divider {
    margin: var(--space-lg) 0;
}

.permission-hint {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
    text-align: center;
    margin-top: var(--space-md);
    line-height: 1.5;
}

/* Mobile-specific permission styles */
@media (max-width: 768px) {
    .permission-help {
        margin-top: var(--space-xl);
        padding: var(--space-lg);
    }
    
    .permission-buttons {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .permission-buttons .btn {
        min-width: auto;
    }
    
    .permission-guide {
        padding: var(--space-lg);
    }
    
    .browser-item,
    .device-item {
        padding: var(--space-md);
    }
    
    .browser-item strong,
    .device-item strong {
        font-size: var(--font-size-sm);
    }
    
    .browser-item p,
    .device-item p {
        font-size: var(--font-size-xs);
    }
    
    .mobile-permission-section {
        margin-top: var(--space-lg);
        padding: var(--space-md);
    }
    
    .permission-hint {
        font-size: var(--font-size-xs);
    }
}