/* AirtightCode Brand Theme - Orange Primary (Logo-Inspired) */
:root {
    /* Primary Brand Colors - Vibrant Orange (from logo) */
    --atc-primary: #FF6B2C;        /* Logo Orange - Primary */
    --atc-primary-dark: #E65A1F;   /* Darker Orange */
    --atc-primary-light: #FF7A3F;  /* Lighter Orange */
    --atc-primary-50: #FFF5F0;     /* Very Light Orange */
    --atc-primary-100: #FFEBE0;    /* Light Orange */
    --atc-primary-900: #D94F15;    /* Darkest Orange */
    
    /* Secondary Brand Colors - Deep Blue */
    --atc-secondary: #1A2B3C;      /* Dark Blue/Charcoal */
    --atc-secondary-dark: #0F1A26;  /* Darker Blue */
    --atc-secondary-light: #2A3F54; /* Lighter Blue */
    --atc-secondary-50: #F0F2F5;   /* Very Light Gray-Blue */
    --atc-secondary-100: #E1E6EB;  /* Light Gray-Blue */
    
    /* Accent Colors - Bright Orange Variations */
    --atc-accent: #FF8547;         /* Bright Orange Accent */
    --atc-accent-dark: #FF6B2C;    /* Logo Orange */
    --atc-accent-light: #FFA366;   /* Light Coral Orange */
    --atc-accent-50: #FFF8F4;      /* Very Light Peach */
    
    /* Success Colors - Green */
    --atc-success: #10B981;        /* Green */
    --atc-success-dark: #059669;   /* Darker Green */
    --atc-success-light: #34D399;  /* Lighter Green */
    --atc-success-50: #F0FDF4;     /* Very Light Green */
    
    /* Warning/Alert Colors - Amber */
    --atc-warning: #F59E0B;        /* Amber */
    --atc-warning-dark: #D97706;   /* Darker Amber */
    --atc-warning-light: #FBBF24;  /* Lighter Amber */
    --atc-warning-50: #FFFBEB;     /* Very Light Amber */
    
    /* Danger/Error Colors - Red */
    --atc-danger: #EF4444;         /* Red */
    --atc-danger-dark: #DC2626;    /* Darker Red */
    --atc-danger-light: #F87171;   /* Lighter Red */
    --atc-danger-50: #FEF2F2;      /* Very Light Red */
    
    /* Info Colors - Blue */
    --atc-info: #3B82F6;           /* Blue */
    --atc-info-dark: #2563EB;      /* Darker Blue */
    --atc-info-light: #60A5FA;     /* Lighter Blue */
    --atc-info-50: #EFF6FF;        /* Very Light Blue */
    
    /* Neutral Colors - Warm Grays (to complement orange) */
    --atc-gray-50: #FAFAF9;
    --atc-gray-100: #F5F5F4;
    --atc-gray-200: #E7E5E4;
    --atc-gray-300: #D6D3D1;
    --atc-gray-400: #A8A29E;
    --atc-gray-500: #78716C;
    --atc-gray-600: #57534E;
    --atc-gray-700: #44403C;
    --atc-gray-800: #292524;
    --atc-gray-900: #1C1917;
    
    /* Typography */
    --atc-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --atc-font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    
    /* Spacing */
    --atc-border-radius: 0.625rem;
    --atc-border-radius-lg: 1rem;
    --atc-border-radius-xl: 1.5rem;
    
    /* Shadows - Enhanced with warm tones */
    --atc-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --atc-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --atc-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --atc-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --atc-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --atc-shadow-orange: 0 4px 14px 0 rgba(255, 107, 44, 0.25);
    --atc-shadow-orange-lg: 0 10px 25px -5px rgba(255, 107, 44, 0.35);
}

/* General Styles */
body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: var(--atc-font-family);
    color: var(--atc-gray-800);
    background-color: var(--atc-gray-50);
}

main {
    flex: 1;
    background-color: var(--atc-gray-50);
}

/* Bootstrap Overrides with Orange-First Theme */
.navbar-dark {
    background: linear-gradient(135deg, #1A2B3C 0%, #0F1A26 100%) !important;
    box-shadow: var(--atc-shadow-md);
    border-bottom: 3px solid var(--atc-primary);
}

/* Admin Navbar Styling */
.admin-navbar .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.admin-navbar .nav-link:hover {
    color: var(--atc-primary) !important;
}

.admin-navbar .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--atc-primary);
    transition: width 0.3s ease;
}

.admin-navbar .nav-link:hover::after {
    width: 80%;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: white !important;
    transition: all 0.3s ease;
}

.navbar-brand:hover {
    transform: scale(1.02);
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--atc-primary);
    transition: width 0.3s ease;
}

.navbar-nav .nav-link:hover::after {
    width: 80%;
}

.navbar-nav .nav-link:hover {
    color: var(--atc-primary) !important;
    transform: translateY(-1px);
}

.navbar-nav .dropdown-menu {
    border: none;
    box-shadow: var(--atc-shadow-lg);
    border-radius: var(--atc-border-radius);
    margin-top: 0.5rem;
    border-top: 2px solid var(--atc-primary);
}

.navbar-nav .dropdown-item {
    color: var(--atc-gray-700);
    padding: 0.75rem 1rem;
    transition: all 0.2s ease;
}

.navbar-nav .dropdown-item:hover {
    background: linear-gradient(90deg, var(--atc-primary-50) 0%, transparent 100%);
    color: var(--atc-primary);
    padding-left: 1.5rem;
}

/* Button Styles - Orange Primary */
.btn-primary {
    background: linear-gradient(135deg, var(--atc-primary) 0%, var(--atc-primary-light) 100%);
    border: none;
    border-radius: var(--atc-border-radius);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    box-shadow: var(--atc-shadow-orange);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--atc-primary-dark) 0%, var(--atc-primary) 100%);
    transform: translateY(-2px);
    box-shadow: var(--atc-shadow-orange-lg);
    color: white;
}

.btn-outline-primary {
    color: var(--atc-primary);
    border: 2px solid var(--atc-primary);
    border-radius: var(--atc-border-radius);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--atc-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--atc-shadow-orange);
}

.btn-success {
    background: linear-gradient(135deg, var(--atc-success) 0%, var(--atc-success-light) 100%);
    border: none;
    border-radius: var(--atc-border-radius);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    box-shadow: var(--atc-shadow);
}

.btn-success:hover {
    background: linear-gradient(135deg, var(--atc-success-dark) 0%, var(--atc-success) 100%);
    transform: translateY(-2px);
    box-shadow: var(--atc-shadow-lg);
}

.btn-warning {
    background: linear-gradient(135deg, var(--atc-warning) 0%, var(--atc-warning-light) 100%);
    border: none;
    border-radius: var(--atc-border-radius);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    box-shadow: var(--atc-shadow);
    color: white;
}

.btn-warning:hover {
    background: linear-gradient(135deg, var(--atc-warning-dark) 0%, var(--atc-warning) 100%);
    transform: translateY(-2px);
    box-shadow: var(--atc-shadow-lg);
    color: white;
}

.btn-info {
    background: linear-gradient(135deg, var(--atc-info) 0%, var(--atc-info-light) 100%);
    border: none;
    border-radius: var(--atc-border-radius);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    box-shadow: var(--atc-shadow);
}

.btn-info:hover {
    background: linear-gradient(135deg, var(--atc-info-dark) 0%, var(--atc-info) 100%);
    transform: translateY(-2px);
    box-shadow: var(--atc-shadow-lg);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--atc-secondary) 0%, var(--atc-secondary-light) 100%);
    border: none;
    border-radius: var(--atc-border-radius);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    box-shadow: var(--atc-shadow);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--atc-secondary-dark) 0%, var(--atc-secondary) 100%);
    transform: translateY(-2px);
    box-shadow: var(--atc-shadow-lg);
}

.btn-danger {
    background: linear-gradient(135deg, var(--atc-danger) 0%, var(--atc-danger-light) 100%);
    border: none;
    border-radius: var(--atc-border-radius);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    box-shadow: var(--atc-shadow);
}

.btn-danger:hover {
    background: linear-gradient(135deg, var(--atc-danger-dark) 0%, var(--atc-danger) 100%);
    transform: translateY(-2px);
    box-shadow: var(--atc-shadow-lg);
}

/* Card Styles with Orange Accents */
.card {
    border: none;
    border-radius: var(--atc-border-radius-lg);
    box-shadow: var(--atc-shadow);
    transition: all 0.3s ease;
    background: white;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--atc-shadow-xl);
    border-top: 3px solid var(--atc-primary);
}

.card-header {
    background: linear-gradient(135deg, var(--atc-gray-50) 0%, white 100%);
    border-bottom: 2px solid var(--atc-primary);
    border-radius: var(--atc-border-radius-lg) var(--atc-border-radius-lg) 0 0 !important;
    font-weight: 600;
    color: var(--atc-gray-800);
    padding: 1rem 1.5rem;
}

/* Software Card Styles */
.software-card {
    transition: all 0.3s ease;
    height: 100%;
    border-radius: var(--atc-border-radius-lg);
    overflow: hidden;
    border: 2px solid transparent;
}

.software-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--atc-shadow-orange-lg);
    border-color: var(--atc-primary);
}

.software-card img {
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.software-card:hover img {
    transform: scale(1.05);
}

/* Form Styles */
.form-control {
    border: 2px solid var(--atc-gray-200);
    border-radius: var(--atc-border-radius);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all 0.3s ease;
    background-color: white;
}

.form-control:focus {
    border-color: var(--atc-primary);
    box-shadow: 0 0 0 0.2rem rgba(255, 107, 44, 0.25);
    background-color: white;
}

.form-label {
    font-weight: 600;
    color: var(--atc-gray-700);
    margin-bottom: 0.5rem;
}

.form-select {
    border: 2px solid var(--atc-gray-200);
    border-radius: var(--atc-border-radius);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all 0.3s ease;
    background-color: white;
}

.form-select:focus {
    border-color: var(--atc-primary);
    box-shadow: 0 0 0 0.2rem rgba(255, 107, 44, 0.25);
}

/* Alert Styles */
.alert {
    border: none;
    border-radius: var(--atc-border-radius);
    padding: 1rem 1.5rem;
    font-weight: 500;
    box-shadow: var(--atc-shadow-sm);
}

.alert-success {
    background: var(--atc-success-50);
    color: var(--atc-success-dark);
    border-left: 4px solid var(--atc-success);
}

.alert-danger {
    background: var(--atc-danger-50);
    color: var(--atc-danger-dark);
    border-left: 4px solid var(--atc-danger);
}

.alert-warning {
    background: var(--atc-warning-50);
    color: var(--atc-warning-dark);
    border-left: 4px solid var(--atc-warning);
}

.alert-info {
    background: var(--atc-info-50);
    color: var(--atc-info-dark);
    border-left: 4px solid var(--atc-info);
}

/* Badge Styles */
.badge {
    font-weight: 600;
    padding: 0.5rem 0.75rem;
    border-radius: var(--atc-border-radius);
}

.bg-primary {
    background: var(--atc-primary) !important;
}

.bg-success {
    background: var(--atc-success) !important;
}

.bg-warning {
    background: var(--atc-warning) !important;
}

.bg-danger {
    background: var(--atc-danger) !important;
}

.bg-info {
    background: var(--atc-info) !important;
}

.bg-secondary {
    background: var(--atc-secondary) !important;
}

/* Text Colors */
.text-primary {
    color: var(--atc-primary) !important;
}

.text-success {
    color: var(--atc-success) !important;
}

.text-warning {
    color: var(--atc-warning) !important;
}

.text-danger {
    color: var(--atc-danger) !important;
}

.text-info {
    color: var(--atc-info) !important;
}

.text-secondary {
    color: var(--atc-secondary) !important;
}

/* Links */
a {
    color: var(--atc-primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--atc-primary-dark);
    text-decoration: underline;
}

/* Screenshot Gallery */
.screenshot-gallery {
    margin: 2rem 0;
}

.screenshot-gallery img {
    max-width: 100%;
    height: auto;
    border-radius: var(--atc-border-radius-lg);
    margin-bottom: 1rem;
    box-shadow: var(--atc-shadow);
    transition: transform 0.3s ease;
    border: 2px solid var(--atc-gray-100);
}

.screenshot-gallery img:hover {
    transform: scale(1.02);
    border-color: var(--atc-primary);
}

/* Version History */
.version-history {
    max-height: 400px;
    overflow-y: auto;
    background: var(--atc-gray-50);
    border-radius: var(--atc-border-radius);
    padding: 1rem;
    border: 2px solid var(--atc-gray-200);
}

/* License Key Display */
.license-key {
    font-family: var(--atc-font-mono);
    background: linear-gradient(135deg, var(--atc-primary-50) 0%, var(--atc-gray-50) 100%);
    padding: 1rem;
    border-radius: var(--atc-border-radius);
    border: 2px solid var(--atc-primary);
    color: var(--atc-gray-800);
    font-weight: 600;
    letter-spacing: 0.05em;
}

/* Helpdesk Ticket */
.ticket-card {
    border-left: 4px solid var(--atc-primary);
    margin-bottom: 1rem;
    border-radius: var(--atc-border-radius);
    box-shadow: var(--atc-shadow);
    transition: all 0.3s ease;
}

.ticket-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--atc-shadow-lg);
    border-left-color: var(--atc-primary-dark);
}

.ticket-card.closed {
    border-left-color: var(--atc-success);
}

/* Admin Dashboard */
.admin-stats {
    background: linear-gradient(135deg, var(--atc-primary-50) 0%, white 100%);
    border-radius: var(--atc-border-radius-lg);
    padding: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: var(--atc-shadow);
    border: 2px solid var(--atc-primary);
    transition: all 0.3s ease;
}

.admin-stats:hover {
    transform: translateY(-2px);
    box-shadow: var(--atc-shadow-lg);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #1A2B3C 0%, #0F1A26 100%);
    color: var(--atc-gray-300);
    border-top: 3px solid var(--atc-primary);
    padding: 2rem 0;
}

/* Hero Section Enhancements - Orange Gradient */
.hero-section {
    background: linear-gradient(135deg, #1A2B3C 0%, #0F1A26 50%, #000000 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255, 107, 44, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(255, 107, 44, 0.1) 0%, transparent 50%);
    opacity: 1;
}

.hero-section::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 40%;
    height: 200%;
    background: linear-gradient(135deg, transparent 0%, rgba(255, 107, 44, 0.1) 50%, transparent 100%);
    transform: rotate(-15deg);
    animation: shimmer 8s infinite;
}

@keyframes shimmer {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
}

/* Feature Icons - Orange Primary */
.feature-icon {
    transition: all 0.3s ease;
    box-shadow: var(--atc-shadow);
}

.feature-icon.bg-primary {
    background: linear-gradient(135deg, var(--atc-primary) 0%, var(--atc-primary-light) 100%) !important;
}

.feature-icon.bg-success {
    background: linear-gradient(135deg, var(--atc-success) 0%, var(--atc-success-light) 100%) !important;
}

.feature-icon.bg-info {
    background: linear-gradient(135deg, var(--atc-info) 0%, var(--atc-info-light) 100%) !important;
}

.feature-icon.bg-warning {
    background: linear-gradient(135deg, var(--atc-warning) 0%, var(--atc-warning-light) 100%) !important;
}

.feature-icon.bg-secondary {
    background: linear-gradient(135deg, var(--atc-secondary) 0%, var(--atc-secondary-light) 100%) !important;
}

.card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: var(--atc-shadow-orange-lg);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .software-card img {
        height: 150px;
    }
    
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    .hero-section {
        padding: 2rem 0;
    }
    
    .feature-icon {
        width: 60px !important;
        height: 60px !important;
    }
    
    .feature-icon i {
        font-size: 1.5rem !important;
    }
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Focus States - Orange */
.btn:focus,
.form-control:focus,
.form-select:focus {
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(255, 107, 44, 0.25);
}

/* Logo styling */
.navbar-brand img {
    transition: all 0.3s ease;
    max-height: 40px;
    width: auto;
    display: block;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.navbar-brand:hover img {
    transform: scale(1.05);
    filter: drop-shadow(0 4px 8px rgba(255, 107, 44, 0.5));
}

/* Enhanced typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--atc-gray-800);
    font-weight: 700;
}

.display-1, .display-2, .display-3, .display-4, .display-5, .display-6 {
    font-weight: 800;
    letter-spacing: -0.02em;
}

/* Custom utility classes */
.atc-gradient-primary {
    background: linear-gradient(135deg, var(--atc-primary) 0%, var(--atc-primary-light) 100%);
}

.atc-gradient-success {
    background: linear-gradient(135deg, var(--atc-success) 0%, var(--atc-success-light) 100%);
}

.atc-gradient-warning {
    background: linear-gradient(135deg, var(--atc-warning) 0%, var(--atc-warning-light) 100%);
}

.atc-gradient-info {
    background: linear-gradient(135deg, var(--atc-info) 0%, var(--atc-info-light) 100%);
}

.atc-gradient-secondary {
    background: linear-gradient(135deg, var(--atc-secondary) 0%, var(--atc-secondary-light) 100%);
}

.atc-shadow-soft {
    box-shadow: var(--atc-shadow);
}

.atc-shadow-medium {
    box-shadow: var(--atc-shadow-md);
}

.atc-shadow-strong {
    box-shadow: var(--atc-shadow-lg);
}

.atc-shadow-orange {
    box-shadow: var(--atc-shadow-orange);
}

.atc-rounded {
    border-radius: var(--atc-border-radius);
}

.atc-rounded-lg {
    border-radius: var(--atc-border-radius-lg);
}

.atc-rounded-xl {
    border-radius: var(--atc-border-radius-xl);
}

/* Enhanced hover effects */
.btn, .card, .software-card, .ticket-card {
    cursor: pointer;
}

/* Progress bars */
.progress {
    border-radius: var(--atc-border-radius);
    height: 1.5rem;
    background: var(--atc-gray-100);
}

.progress-bar {
    background: linear-gradient(135deg, var(--atc-primary) 0%, var(--atc-primary-light) 100%);
    border-radius: var(--atc-border-radius);
}

/* List groups */
.list-group-item {
    border: 1px solid var(--atc-gray-200);
    transition: all 0.3s ease;
}

.list-group-item:hover {
    background: var(--atc-primary-50);
    border-color: var(--atc-primary);
}

.list-group-item.active {
    background: var(--atc-primary);
    border-color: var(--atc-primary);
}

/* Pagination */
.pagination .page-link {
    color: var(--atc-primary);
    border: 1px solid var(--atc-gray-200);
    transition: all 0.3s ease;
}

.pagination .page-link:hover {
    background: var(--atc-primary-50);
    border-color: var(--atc-primary);
}

.pagination .page-item.active .page-link {
    background: var(--atc-primary);
    border-color: var(--atc-primary);
}

/* Tables */
.table {
    border-radius: var(--atc-border-radius);
    overflow: hidden;
}

.table thead {
    background: linear-gradient(135deg, var(--atc-primary) 0%, var(--atc-primary-dark) 100%);
    color: white;
}

.table tbody tr:hover {
    background: var(--atc-primary-50);
}

/* Smooth scrollbar */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--atc-gray-100);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--atc-primary) 0%, var(--atc-primary-dark) 100%);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--atc-primary-dark);
}

/* Selection */
::selection {
    background: var(--atc-primary);
    color: white;
}

::-moz-selection {
    background: var(--atc-primary);
    color: white;
}

/* Accent highlights */
.accent-border-top {
    border-top: 3px solid var(--atc-primary);
}

.accent-border-bottom {
    border-bottom: 3px solid var(--atc-primary);
}

.accent-border-left {
    border-left: 3px solid var(--atc-primary);
}

.accent-border-right {
    border-right: 3px solid var(--atc-primary);
}

/* Glow effects for primary elements */
.glow-primary {
    box-shadow: 0 0 20px rgba(255, 107, 44, 0.5);
}

.glow-primary-strong {
    box-shadow: 0 0 30px rgba(255, 107, 44, 0.7);
}

/* Animated background for hero sections */
.animated-bg {
    background: linear-gradient(270deg, var(--atc-primary), var(--atc-primary-dark), var(--atc-secondary));
    background-size: 600% 600%;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}