/* ===================================
   ONLINE CASINO - DESIGN SYSTEM
   Dark theme with gold/orange accents
   Based on the mikesBAR design
   =================================== */

/* CSS Variables */
:root {
    /* Primary Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1625;
    --bg-card-hover: #231f30;
    
    /* Accent Colors */
    --accent-gold: #f2a900;
    --accent-gold-light: #ffc233;
    --accent-gold-dark: #cc8e00;
    --accent-purple: #6b4c9a;
    --accent-purple-light: #8b6bb8;
    --accent-green: #2d5a3d;
    --accent-green-light: #3d7a52;
    --accent-red: #8b3a3a;
    --accent-orange: #e67e22;
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    
    /* Gradients */
    --gradient-gold: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
    --gradient-purple: linear-gradient(135deg, #2d1f4a, #4a2d6b);
    --gradient-dark: linear-gradient(180deg, var(--bg-secondary), var(--bg-primary));
    
    /* Shadows */
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-glow-gold: 0 0 30px rgba(242, 169, 0, 0.3);
    --shadow-glow-purple: 0 0 30px rgba(107, 76, 154, 0.3);
    
    /* Borders */
    --border-subtle: 1px solid rgba(255, 255, 255, 0.05);
    --border-gold: 2px solid var(--accent-gold);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 50%;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Font Family */
    --font-primary: 'Inter', 'Segoe UI', sans-serif;
    --font-display: 'Outfit', 'Inter', sans-serif;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

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

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

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ===================================
   HEADER & NAVIGATION
   =================================== */
.header {
    background: var(--bg-secondary);
    border-bottom: var(--border-subtle);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    max-width: 1400px;
    margin: 0 auto;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    border: 3px solid var(--accent-gold);
    box-shadow: var(--shadow-glow-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    font-size: 1.5rem;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-gold);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--text-secondary);
    letter-spacing: 4px;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-link {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.user-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.balance-display {
    background: var(--gradient-purple);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.balance-amount {
    font-weight: 700;
    color: var(--accent-gold);
}

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

.user-avatar {
    width: 45px;
    height: 45px;
    border-radius: var(--radius-full);
    background: var(--gradient-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.user-avatar:hover {
    transform: scale(1.05);
}

/* ===================================
   BUTTONS
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background: var(--gradient-gold);
    color: #000;
}

.btn-primary:hover {
    box-shadow: var(--shadow-glow-gold);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: var(--border-subtle);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
}

.btn-danger {
    background: var(--accent-red);
    color: var(--text-primary);
}

.btn-success {
    background: var(--accent-green);
    color: var(--text-primary);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* ===================================
   CARDS
   =================================== */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: var(--border-subtle);
    overflow: hidden;
    transition: all var(--transition-normal);
}

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

.card-header {
    padding: var(--spacing-lg);
    border-bottom: var(--border-subtle);
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: var(--border-subtle);
    background: rgba(0, 0, 0, 0.2);
}

/* Game Card - Special styling for game tiles */
.game-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    cursor: pointer;
    min-height: 80px;
}

.game-card.featured {
    background: var(--gradient-purple);
}

.game-card.live {
    position: relative;
}

.game-card.live::after {
    content: 'LIVE';
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: var(--accent-red);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
    animation: pulse 2s infinite;
}

.game-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.game-icon.orange { background: linear-gradient(135deg, #e67e22, #f39c12); }
.game-icon.pink { background: linear-gradient(135deg, #e84393, #fd79a8); }
.game-icon.purple { background: linear-gradient(135deg, #6c5ce7, #a29bfe); }
.game-icon.green { background: linear-gradient(135deg, #00b894, #55efc4); }
.game-icon.blue { background: linear-gradient(135deg, #0984e3, #74b9ff); }
.game-icon.red { background: linear-gradient(135deg, #d63031, #ff7675); }
.game-icon.gold { background: var(--gradient-gold); }

.game-info h4 {
    font-size: 1rem;
    margin-bottom: 2px;
}

.game-info p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ===================================
   FORMS & INPUTS
   =================================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

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

.form-input {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border: var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-gold);
    box-shadow: 0 0 0 3px rgba(242, 169, 0, 0.1);
}

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

/* Bet Amount Input */
.bet-input-container {
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    gap: var(--spacing-sm);
}

.bet-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    outline: none;
}

.bet-btn {
    background: var(--bg-card);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.bet-btn:hover {
    background: var(--accent-purple);
}

/* ===================================
   GRID LAYOUTS
   =================================== */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-xl) 0;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

@media (max-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   SECTION TITLE
   =================================== */
.section-title {
    text-align: center;
    padding: var(--spacing-md) 0;
    margin: var(--spacing-lg) 0;
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    position: relative;
}

.section-title::before,
.section-title::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 100px;
    height: 1px;
    background: var(--text-muted);
}

.section-title::before { right: calc(50% + 60px); }
.section-title::after { left: calc(50% + 60px); }

/* ===================================
   MAIN CONTENT AREA
   =================================== */
.main-content {
    padding: var(--spacing-xl) 0;
    min-height: calc(100vh - 100px);
}

/* Hero Section */
.hero {
    text-align: center;
    padding: var(--spacing-xxl) 0;
}

.hero-logo {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-lg);
    border-radius: var(--radius-full);
    border: 4px solid var(--accent-gold);
    box-shadow: var(--shadow-glow-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    font-size: 3rem;
}

.hero h1 {
    color: var(--accent-gold);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 4px;
}

.hero p {
    color: var(--text-secondary);
    letter-spacing: 6px;
    text-transform: uppercase;
    font-size: 0.9rem;
}

/* ===================================
   MODALS
   =================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

.modal {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 450px;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(-20px);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal-header {
    padding: var(--spacing-lg);
    border-bottom: var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

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

.modal-body {
    padding: var(--spacing-lg);
}

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

.leaderboard-table th,
.leaderboard-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: var(--border-subtle);
}

.leaderboard-table th {
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 1px;
}

.leaderboard-table tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.rank {
    font-weight: 700;
    color: var(--accent-gold);
}

.rank.top-3 {
    font-size: 1.2rem;
}

/* ===================================
   GAME SPECIFIC STYLES
   =================================== */

/* Coinflip Animation */
.coinflip-container {
    text-align: center;
    padding: var(--spacing-xxl);
}

.coin {
    width: 150px;
    height: 150px;
    margin: var(--spacing-xl) auto;
    border-radius: var(--radius-full);
    background: var(--gradient-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    box-shadow: var(--shadow-glow-gold);
    transition: transform 0.1s;
}

.coin.flipping {
    animation: coinflip 0.5s ease-in-out infinite;
}

@keyframes coinflip {
    0% { transform: rotateY(0deg); }
    50% { transform: rotateY(180deg); }
    100% { transform: rotateY(360deg); }
}

.side-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin: var(--spacing-lg) 0;
}

.side-btn {
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-fast);
}

.side-btn.heads {
    background: var(--gradient-gold);
    color: #000;
}

.side-btn.tails {
    background: var(--gradient-purple);
    color: white;
}

.side-btn.selected {
    border-color: white;
    transform: scale(1.05);
}

/* Slots */
.slots-container {
    text-align: center;
    padding: var(--spacing-xl);
}

.slots-reels {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

.slot-reel {
    width: 100px;
    height: 120px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    border: 2px solid var(--accent-purple);
    overflow: hidden;
}

.slot-reel.spinning {
    animation: slot-spin 0.1s linear infinite;
}

@keyframes slot-spin {
    0% { transform: translateY(-10px); }
    100% { transform: translateY(10px); }
}

/* Mines Grid */
.mines-container {
    padding: var(--spacing-xl);
}

.mines-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-sm);
    max-width: 400px;
    margin: var(--spacing-lg) auto;
}

.mine-tile {
    aspect-ratio: 1;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.5rem;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.mine-tile:hover:not(.revealed) {
    background: var(--bg-card-hover);
    border-color: var(--accent-purple);
}

.mine-tile.revealed.gem {
    background: var(--accent-green);
}

.mine-tile.revealed.mine {
    background: var(--accent-red);
}

/* Daily Spin Wheel */
.spin-wheel-container {
    text-align: center;
    padding: var(--spacing-xl);
}

.spin-wheel {
    width: 300px;
    height: 300px;
    margin: var(--spacing-xl) auto;
    border-radius: var(--radius-full);
    background: conic-gradient(
        var(--accent-gold) 0deg 45deg,
        var(--accent-purple) 45deg 90deg,
        var(--accent-green) 90deg 135deg,
        var(--accent-orange) 135deg 180deg,
        var(--accent-red) 180deg 225deg,
        var(--accent-purple) 225deg 270deg,
        var(--accent-green) 270deg 315deg,
        var(--accent-gold) 315deg 360deg
    );
    position: relative;
    box-shadow: var(--shadow-card);
}

.spin-wheel::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: var(--bg-primary);
    border-radius: var(--radius-full);
    border: 4px solid var(--accent-gold);
}

.spin-wheel.spinning {
    animation: spin 3s cubic-bezier(0.17, 0.67, 0.12, 0.99) forwards;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(1800deg); }
}

/* ===================================
   NOTIFICATIONS & ALERTS
   =================================== */
.notification {
    position: fixed;
    top: 100px;
    right: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border-left: 4px solid var(--accent-gold);
    box-shadow: var(--shadow-card);
    transform: translateX(120%);
    transition: transform var(--transition-normal);
    z-index: 3000;
}

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

.notification.success { border-left-color: var(--accent-green); }
.notification.error { border-left-color: var(--accent-red); }
.notification.warning { border-left-color: var(--accent-orange); }

/* ===================================
   AUTH PAGES
   =================================== */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.auth-card {
    width: 100%;
    max-width: 400px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xxl);
    text-align: center;
}

.auth-card .hero-logo {
    width: 80px;
    height: 80px;
    font-size: 2rem;
}

.auth-card h2 {
    margin: var(--spacing-lg) 0;
}

.auth-form {
    text-align: left;
}

.auth-footer {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: var(--border-subtle);
    color: var(--text-secondary);
}

/* ===================================
   ADMIN PANEL
   =================================== */
.admin-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    min-height: 100vh;
}

.admin-sidebar {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-right: var(--border-subtle);
}

.admin-nav {
    list-style: none;
    margin-top: var(--spacing-xl);
}

.admin-nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    transition: all var(--transition-fast);
}

.admin-nav-link:hover,
.admin-nav-link.active {
    background: var(--bg-card);
    color: var(--text-primary);
}

.admin-content {
    padding: var(--spacing-xl);
    overflow-y: auto;
}

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

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-gold);
    margin-top: var(--spacing-sm);
}

/* Log Viewer */
.log-viewer {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    font-family: 'Consolas', monospace;
    font-size: 0.85rem;
    max-height: 500px;
    overflow-y: auto;
}

.log-entry {
    padding: var(--spacing-sm) 0;
    border-bottom: var(--border-subtle);
    display: flex;
    gap: var(--spacing-md);
}

.log-time {
    color: var(--text-muted);
    flex-shrink: 0;
}

.log-level {
    font-weight: 600;
    flex-shrink: 0;
    width: 70px;
}

.log-level.info { color: #74b9ff; }
.log-level.warning { color: #fdcb6e; }
.log-level.error { color: #ff7675; }
.log-level.debug { color: #a29bfe; }

.log-message {
    color: var(--text-secondary);
}

/* ===================================
   ANIMATIONS
   =================================== */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

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

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

/* Win Animation */
.win-animation {
    animation: win-pulse 0.5s ease;
}

@keyframes win-pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

/* ===================================
   RESPONSIVE
   =================================== */
@media (max-width: 1024px) {
    .admin-layout {
        grid-template-columns: 1fr;
    }
    
    .admin-sidebar {
        display: none;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    
    .header-content {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }
    
    .nav-links {
        order: 3;
        width: 100%;
        justify-content: center;
    }
    
    .hero-logo {
        width: 80px;
        height: 80px;
        font-size: 2rem;
    }
    
    .games-grid {
        grid-template-columns: 1fr;
    }
    
    .coin {
        width: 100px;
        height: 100px;
        font-size: 2.5rem;
    }
    
    .slots-reels {
        gap: var(--spacing-sm);
    }
    
    .slot-reel {
        width: 70px;
        height: 90px;
        font-size: 2.5rem;
    }
}

/* ===================================
   UTILITY CLASSES
   =================================== */
.text-center { text-align: center; }
.text-gold { color: var(--accent-gold); }
.text-green { color: var(--accent-green-light); }
.text-red { color: var(--accent-red); }
.text-muted { color: var(--text-muted); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.hidden { display: none !important; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }