/* ============================================
   MyPay Billing - Main Stylesheet
   Dark Theme with Glassmorphism Effects
   ============================================ */

/* === CSS Variables === */
:root {
    /* Colors */
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-tertiary: #0f3460;
    --bg-card: rgba(22, 33, 62, 0.8);
    --bg-glass: rgba(255, 255, 255, 0.05);
    --bg-glass-hover: rgba(255, 255, 255, 0.1);
    
    --accent-primary: #533483;
    --accent-secondary: #e94560;
    --accent-blue: #0ea5e9;
    --accent-purple: #8b5cf6;
    --accent-green: #10b981;
    --accent-yellow: #f59e0b;
    
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --border-color: rgba(255, 255, 255, 0.1);
    --border-radius: 12px;
    --border-radius-lg: 20px;
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px rgba(83, 52, 131, 0.3);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;
}

/* === Reset & Base === */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-purple);
}

img {
    max-width: 100%;
    height: auto;
}

ul, ol {
    list-style: none;
}

/* === Background Effects === */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(83, 52, 131, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(14, 165, 233, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 80%, rgba(233, 69, 96, 0.08) 0%, transparent 50%);
    z-index: -1;
    animation: bgFloat 20s ease-in-out infinite;
}

@keyframes bgFloat {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-2%, -2%); }
}

/* === Glassmorphism === */
.glass {
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

.glass-strong {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--border-radius);
}

/* === Container === */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* === Header / Navigation === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    background: rgba(26, 26, 46, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: padding var(--transition-normal);
}

.navbar.scrolled {
    padding: var(--space-sm) 0;
    box-shadow: var(--shadow-md);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.navbar-brand svg {
    width: 32px;
    height: 32px;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.navbar-menu a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.navbar-menu a:hover,
.navbar-menu a.active {
    color: var(--text-primary);
    background: var(--bg-glass);
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

/* Mobile menu */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--space-sm);
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 12px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: inherit;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
    line-height: 1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-purple));
    color: white;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(83, 52, 131, 0.5);
    color: white;
}

.btn-secondary {
    background: var(--bg-glass);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-glass-hover);
    border-color: var(--accent-purple);
}

.btn-outline {
    background: transparent;
    color: var(--accent-blue);
    border: 2px solid var(--accent-blue);
}

.btn-outline:hover {
    background: var(--accent-blue);
    color: white;
}

.btn-success {
    background: linear-gradient(135deg, #059669, var(--accent-green));
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, #dc2626, var(--accent-secondary));
    color: white;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
}

.btn:disabled,
.btn[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* === Forms === */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--space-sm);
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    font-size: 1rem;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    outline: none;
}

.form-input:focus {
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
    background: rgba(255, 255, 255, 0.08);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-input.error {
    border-color: var(--accent-secondary);
    box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.2);
}

.form-error {
    color: var(--accent-secondary);
    font-size: 0.85rem;
    margin-top: var(--space-xs);
}

.form-hint {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: var(--space-xs);
}

textarea.form-input {
    resize: vertical;
    min-height: 100px;
}

select.form-input {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

/* === Cards === */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-normal);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(139, 92, 246, 0.3);
}

.card-header {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.card-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* === Hero Section === */
.hero {
    padding: 140px 0 80px;
    text-align: center;
    position: relative;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.hero-badge .badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-blue) 50%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2xl);
    margin-top: var(--space-3xl);
    padding-top: var(--space-2xl);
    border-top: 1px solid var(--border-color);
}

.hero-stat {
    text-align: center;
}

.hero-stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-purple);
}

.hero-stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: var(--space-xs);
}

/* === Features Section === */
.features {
    padding: var(--space-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-header h2 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.feature-card {
    padding: var(--space-xl);
    text-align: center;
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-purple));
    border-radius: var(--border-radius-lg);
    font-size: 1.5rem;
}

.feature-card h3 {
    font-size: 1.15rem;
    margin-bottom: var(--space-sm);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* === Pricing Section === */
.pricing {
    padding: var(--space-3xl) 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    align-items: start;
}

.pricing-card {
    padding: var(--space-2xl);
    position: relative;
}

.pricing-card.popular {
    border-color: var(--accent-purple);
    box-shadow: var(--shadow-glow);
}

.pricing-card.popular::before {
    content: 'Популярный';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-xs) var(--space-md);
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-purple));
    color: white;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 50px;
}

.pricing-name {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.pricing-price {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--space-xs);
}

.pricing-price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-secondary);
}

.pricing-period {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--space-lg);
}

.pricing-features {
    margin: var(--space-lg) 0;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.pricing-features li .check {
    color: var(--accent-green);
    font-weight: bold;
}

.pricing-features li .cross {
    color: var(--text-muted);
}

/* === FAQ Section === */
.faq {
    padding: var(--space-3xl) 0;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: var(--space-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: border-color var(--transition-fast);
}

.faq-item:hover {
    border-color: rgba(139, 92, 246, 0.3);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    background: var(--bg-glass);
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    color: var(--text-primary);
    width: 100%;
    text-align: left;
    font-family: inherit;
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: var(--bg-glass-hover);
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--accent-purple);
    transition: transform var(--transition-normal);
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer-content {
    padding: var(--space-lg);
    color: var(--text-secondary);
    line-height: 1.7;
}

/* === Reviews Section === */
.reviews {
    padding: var(--space-3xl) 0;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.review-card {
    padding: var(--space-xl);
}

.review-stars {
    color: var(--accent-yellow);
    font-size: 1.1rem;
    margin-bottom: var(--space-md);
}

.review-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: var(--space-lg);
    font-style: italic;
}

.review-author {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.review-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-blue));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
}

.review-name {
    font-weight: 600;
}

.review-role {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* === Dashboard Layout === */
.dashboard {
    padding-top: 80px;
    min-height: 100vh;
}

.dashboard-header {
    padding: var(--space-2xl) 0;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.dashboard-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.dashboard-subtitle {
    color: var(--text-secondary);
}

.dashboard-content {
    padding: var(--space-2xl) 0;
}

/* === Stats Grid === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.stat-card {
    padding: var(--space-xl);
    text-align: center;
}

.stat-icon {
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* === Service List === */
.service-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.service-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.service-info {
    flex: 1;
    min-width: 200px;
}

.service-name {
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.service-details {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.service-status {
    padding: var(--space-xs) var(--space-md);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
}

.service-status.active {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-green);
}

.service-status.blocked {
    background: rgba(233, 69, 96, 0.15);
    color: var(--accent-secondary);
}

.service-status.expired {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-yellow);
}

.service-status.pending {
    background: rgba(14, 165, 233, 0.15);
    color: var(--accent-blue);
}

.service-actions {
    display: flex;
    gap: var(--space-sm);
}

/* === Table === */
.table-wrapper {
    overflow-x: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: var(--space-md) var(--space-lg);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    background: var(--bg-secondary);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table td {
    font-size: 0.95rem;
}

.table tr:hover td {
    background: var(--bg-glass);
}

/* === Pagination === */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-xl);
}

.pagination-btn {
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: inherit;
}

.pagination-btn:hover {
    background: var(--bg-glass-hover);
    color: var(--text-primary);
}

.pagination-btn.active {
    background: var(--accent-purple);
    color: white;
    border-color: var(--accent-purple);
}

.pagination-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* === Alert / Notification === */
.alert {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--border-radius);
    margin-bottom: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--accent-green);
}

.alert-error {
    background: rgba(233, 69, 96, 0.1);
    border: 1px solid rgba(233, 69, 96, 0.3);
    color: var(--accent-secondary);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--accent-yellow);
}

.alert-info {
    background: rgba(14, 165, 233, 0.1);
    border: 1px solid rgba(14, 165, 233, 0.3);
    color: var(--accent-blue);
}

/* === Footer === */
.footer {
    padding: var(--space-3xl) 0 var(--space-xl);
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-col h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
}

.footer-col a {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding: var(--space-xs) 0;
    transition: color var(--transition-fast);
}

.footer-col a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* === Auth Page === */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl);
}

.auth-card {
    width: 100%;
    max-width: 440px;
    padding: var(--space-2xl);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.auth-header h1 {
    font-size: 1.75rem;
    margin-bottom: var(--space-sm);
}

.auth-header p {
    color: var(--text-secondary);
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin: var(--space-lg) 0;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.auth-footer {
    text-align: center;
    margin-top: var(--space-lg);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.auth-footer a {
    color: var(--accent-purple);
    font-weight: 600;
}

/* === Loading Spinner === */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent-purple);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* === Utility Classes === */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-green { color: var(--accent-green); }
.text-red { color: var(--accent-secondary); }
.text-blue { color: var(--accent-blue); }
.text-purple { color: var(--accent-purple); }
.text-yellow { color: var(--accent-yellow); }

.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }

.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: var(--space-sm); }
.gap-2 { gap: var(--space-md); }
.gap-3 { gap: var(--space-lg); }

.w-full { width: 100%; }

/* === Animations === */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease forwards;
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* === Responsive Design === */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: clamp(2rem, 5vw, 3rem);
    }
    
    .hero-stats {
        gap: var(--space-xl);
    }
}

@media (max-width: 768px) {
    .navbar-menu {
        display: none;
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(26, 26, 46, 0.98);
        flex-direction: column;
        padding: var(--space-xl);
        gap: var(--space-md);
    }
    
    .navbar-menu.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .service-item {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .service-actions {
        width: 100%;
    }
    
    .service-actions .btn {
        flex: 1;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .table th:nth-child(3),
    .table td:nth-child(3) {
        display: none;
    }
}

@media (max-width: 480px) {
    :root {
        --space-xl: 24px;
        --space-2xl: 32px;
        --space-3xl: 48px;
    }
    
    .container {
        padding: 0 var(--space-md);
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .auth-card {
        padding: var(--space-xl);
    }
}

/* === Print Styles === */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .navbar,
    .footer,
    .btn {
        display: none;
    }
}

/* === Scrollbar === */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

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

/* === Selection === */
::selection {
    background: var(--accent-purple);
    color: white;
}