/* ===================================
   Avirona Help - Dark Futuristic Theme
   =================================== */

/* CSS Variables */
:root {
    /* Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: rgba(20, 20, 35, 0.8);
    --bg-card-hover: rgba(30, 30, 50, 0.9);

    /* Accent Colors */
    --primary: #00d4ff;
    --primary-glow: rgba(0, 212, 255, 0.3);
    --secondary: #bd00ff;
    --secondary-glow: rgba(189, 0, 255, 0.3);
    --success: #00ff88;
    --warning: #ffaa00;
    --error: #ff4466;

    /* Text */
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #606070;

    /* Borders */
    --border-color: rgba(255, 255, 255, 0.1);
    --border-glow: rgba(0, 212, 255, 0.5);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #bd00ff 100%);
    --gradient-dark: linear-gradient(135deg, #12121a 0%, #1a1a2e 100%);

    /* Shadows */
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px var(--primary-glow);

    /* Spacing */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;

    /* Font */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Orbitron', var(--font-main);
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Background Effects */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 20%, var(--primary-glow) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, var(--secondary-glow) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: 0.02em;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

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

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

a:hover {
    color: var(--text-primary);
    text-shadow: 0 0 10px var(--primary-glow);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.container-sm {
    max-width: 600px;
}

.container-lg {
    max-width: 1400px;
}

/* ===================
   BUTTONS
   =================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-main);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px var(--primary-glow), 0 0 60px var(--secondary-glow);
}

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

.btn-secondary:hover {
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    padding: 8px 16px;
}

.btn-ghost:hover {
    color: var(--primary);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 16px 40px;
    font-size: 1.125rem;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 50%;
}

/* ===================
   FORMS
   =================== */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.form-input {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: all 0.3s ease;
}

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

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23a0a0b0' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

textarea.form-input {
    min-height: 120px;
    resize: vertical;
}

.form-error {
    color: var(--error);
    font-size: 0.8rem;
    margin-top: 6px;
}

/* ===================
   CARDS
   =================== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    backdrop-filter: blur(20px);
    transition: all 0.3s ease;
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-glow);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.card-body {
    color: var(--text-secondary);
}

.card-footer {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

/* Glass Card */
.card-glass {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

/* ===================
   NAVBAR
   =================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

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

.navbar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.navbar-logo span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.navbar-link {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar-link:hover,
.navbar-link.active {
    color: var(--primary);
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Mobile Nav */
.navbar-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.navbar-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

@media (max-width: 768px) {
    .navbar-toggle {
        display: flex;
    }

    .navbar-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--bg-secondary);
        padding: 20px;
        gap: 16px;
    }

    .navbar-nav.active {
        display: flex;
    }
}

/* ===================
   HERO SECTION
   =================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 700px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

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

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

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 24px;
    line-height: 1.1;
}

.hero-title .gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 540px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.stat-item {
    text-align: left;
}

.stat-value {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ===================
   FEATURES SECTION
   =================== */
.features {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

.section-title {
    margin-bottom: 16px;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-card {
    padding: 32px;
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.feature-title {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.feature-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===================
   PRICING SECTION
   =================== */
.pricing {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    padding: 40px 32px;
    text-align: center;
    position: relative;
}

.pricing-card.popular {
    border-color: var(--primary);
    transform: scale(1.05);
}

.pricing-card.popular::before {
    content: 'Популярный';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 16px;
    background: var(--gradient-primary);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
}

.pricing-name {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.pricing-price {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 8px;
}

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

.pricing-desc {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
    text-align: left;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features .check {
    color: var(--success);
}

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

/* ===================
   FOOTER
   =================== */
.footer {
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-color);
}

.footer-inner {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-title {
    font-size: 1rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.footer-social a:hover {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
}

/* ===================
   AUTH PAGES
   =================== */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.auth-card {
    width: 100%;
    max-width: 440px;
    padding: 48px;
}

.auth-header {
    text-align: center;
    margin-bottom: 40px;
}

.auth-title {
    font-size: 2rem;
    margin-bottom: 8px;
}

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

.auth-divider {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 24px 0;
    color: var(--text-muted);
    font-size: 0.875rem;
}

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

.auth-footer {
    text-align: center;
    margin-top: 24px;
    color: var(--text-secondary);
}

/* ===================
   DASHBOARD LAYOUT
   =================== */
.dashboard {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: 24px 0;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 24px;
    margin-bottom: 32px;
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.sidebar-nav {
    flex: 1;
    padding: 0 12px;
}

.sidebar-section {
    margin-bottom: 24px;
}

.sidebar-section-title {
    padding: 0 12px;
    margin-bottom: 8px;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-weight: 500;
    transition: all 0.2s ease;
}

.sidebar-link:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.sidebar-link.active {
    background: var(--gradient-primary);
    color: var(--text-primary);
}

.sidebar-link .icon {
    width: 20px;
    height: 20px;
    opacity: 0.7;
}

.sidebar-link.active .icon {
    opacity: 1;
}

.sidebar-footer {
    padding: 24px;
    border-top: 1px solid var(--border-color);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-avatar {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.sidebar-user-info {
    flex: 1;
    min-width: 0;
}

.sidebar-user-name {
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user-plan {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 32px;
    min-height: 100vh;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
}

.page-title {
    font-size: 1.75rem;
}

.page-subtitle {
    color: var(--text-secondary);
    margin-top: 4px;
}

/* ===================
   STATS CARDS
   =================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    padding: 24px;
}

.stat-card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-glow);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    font-size: 1.25rem;
}

.stat-card-value {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.stat-card-label {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.stat-card-change {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 8px;
    font-size: 0.8rem;
    padding: 2px 8px;
    border-radius: 100px;
}

.stat-card-change.positive {
    background: rgba(0, 255, 136, 0.1);
    color: var(--success);
}

.stat-card-change.negative {
    background: rgba(255, 68, 102, 0.1);
    color: var(--error);
}

/* ===================
   DATA TABLE
   =================== */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.data-table .status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 500;
}

.status.active {
    background: rgba(0, 255, 136, 0.1);
    color: var(--success);
}

.status.pending {
    background: rgba(255, 170, 0, 0.1);
    color: var(--warning);
}

.status.inactive {
    background: rgba(160, 160, 176, 0.1);
    color: var(--text-muted);
}

/* ===================
   ALERTS & NOTIFICATIONS
   =================== */
.alert {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 16px;
}

.alert-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: 600;
    margin-bottom: 4px;
}

.alert-message {
    font-size: 0.9rem;
    opacity: 0.9;
}

.alert-success {
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.3);
    color: var(--success);
}

.alert-error {
    background: rgba(255, 68, 102, 0.1);
    border: 1px solid rgba(255, 68, 102, 0.3);
    color: var(--error);
}

.alert-warning {
    background: rgba(255, 170, 0, 0.1);
    border: 1px solid rgba(255, 170, 0, 0.3);
    color: var(--warning);
}

.alert-info {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    color: var(--primary);
}

/* ===================
   MODAL
   =================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 1.25rem;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 24px;
    border-top: 1px solid var(--border-color);
}

/* ===================
   LOADING & SKELETON
   =================== */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-card) 25%,
        var(--bg-card-hover) 50%,
        var(--bg-card) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

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

.text-primary { color: var(--primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-error { color: var(--error); }
.text-warning { color: var(--warning); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mt-5 { margin-top: 48px; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.mb-5 { margin-bottom: 48px; }

.d-none { display: none; }
.d-flex { display: flex; }
.d-block { display: block; }
.d-grid { display: grid; }

.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }

.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }

.w-full { width: 100%; }
.h-full { height: 100%; }

.hidden { display: none !important; }
.visible { visibility: visible !important; }

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

    .auth-card {
        padding: 32px 24px;
    }

    .main-content {
        padding: 20px;
    }
}