:root {
    --primary: #8b5cf6;
    --primary-dark: #6d28d9;
    --primary-light: #a78bfa;
    --secondary: #f43f5e;
    --secondary-dark: #be123c;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #f43f5e;
    --bg: #070913;
    --bg-secondary: #0f1123;
    --card-bg: rgba(25, 29, 56, 0.6);
    --card-hover: rgba(38, 44, 84, 0.8);
    --text: #f8fafc;
    --text-secondary: #94a3b8;
    --border: rgba(255, 255, 255, 0.08);
    --border-light: rgba(139, 92, 246, 0.25);
    --radius: 16px;
    --radius-lg: 24px;
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
    background: radial-gradient(circle at 50% 0%, #1e1b4b 0%, #070913 80%);
    color: var(--text);
    padding-bottom: 100px;
    min-height: 100vh;
    font-weight: 500;
    overflow-x: hidden;
}

/* Remove bottom padding when game or cartela sections are active */
body:has(#game-section.active),
body:has(#cartela-section.active) {
    padding-bottom: 0;
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(7, 9, 19, 0.8);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 200;
    height: 75px;
    box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.6);
}

/* Hide bottom nav when game or cartela sections are active */
main .view.active #game-section.active ~ .bottom-nav,
main .view.active #cartela-section.active ~ .bottom-nav {
    display: none !important;
}

/* When game-section or cartela-section is active, hide the bottom nav */
body:has(#game-section.active) .bottom-nav,
body:has(#cartela-section.active) .bottom-nav {
    display: none !important;
}

.nav-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 8px 16px;
    border-radius: 12px;
    transition: var(--transition);
    flex: 1;
    height: 100%;
}

.nav-btn:hover {
    background: rgba(139, 92, 246, 0.08);
    color: var(--text);
}

.nav-btn.active {
    color: var(--primary-light);
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(244, 63, 94, 0.05) 100%);
    text-shadow: 0 0 10px rgba(139, 92, 246, 0.3);
}

.nav-icon {
    font-size: 24px;
    transition: transform 0.3s ease;
}

.nav-btn:hover .nav-icon {
    transform: translateY(-2px);
}

.nav-label {
    font-size: 12px;
    font-weight: 600;
}

/* App Container */
.app-container {
    max-width: 600px;
    margin: 0 auto;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Views */
.view {
    display: none;
    animation: fadeIn 0.4s ease-out;
}

.view.active {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Sections within views */
.section {
    display: none;
    height: 100%;
    flex: 1;
}

.section.active {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.section.hidden {
    display: none;
}

/* Hide header when cartela section is active */
.view.active header {
    display: block;
}

#cartela-section.active + header,
#view-game header {
    display: none;
}

#cartela-section.active ~ header {
    display: none;
}

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

/* Header */
header {
    position: sticky;
    top: 0;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 16px 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
    z-index: 100;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 600px;
    margin: 0 auto;
    padding: 0 16px;
}

header h1 {
    font-size: 28px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.header-right {
    display: flex;
    gap: 12px;
    align-items: center;
}

/* Balance Badge */
.balance-badge {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
    transition: var(--transition);
}

.balance-badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

/* Icon Button */
.icon-btn {
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 18px;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-color: var(--primary);
    transform: scale(1.05) rotate(5deg);
}

/* Welcome Banner */
.welcome-banner {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(236, 72, 153, 0.1) 100%);
    border: 1px solid var(--border);
    padding: 24px 16px;
    border-radius: var(--radius-lg);
    text-align: center;
    margin: 16px;
    animation: slideInDown 0.6s ease-out;
}

.welcome-banner h2 {
    font-size: 28px;
    margin-bottom: 8px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.welcome-banner p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Stats Container */
.stats-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    padding: 0 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 0.8) 100%);
    border: 1px solid var(--border);
    padding: 16px;
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(236, 72, 153, 0.05) 100%);
}

.stat-number {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Stake Selector */
.stake-selector {
    padding: 0 16px;
    margin-bottom: 24px;
}

.stake-selector h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text);
}

.stake-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.stake-btn {
    background: linear-gradient(135deg, var(--card-bg) 0%, rgba(30, 41, 59, 0.8) 100%);
    border: 2px solid var(--border);
    color: var(--text);
    padding: 16px;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    font-weight: 600;
}

.stake-btn:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

.stake-amount {
    font-size: 18px;
    font-weight: 700;
}

.stake-currency {
    font-size: 12px;
    opacity: 0.8;
}

/* BINGO Letters */
.letter {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 18px;
    border-radius: 8px;
    transition: var(--transition);
}

.letter.b { background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%); }
.letter.i { background: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 100%); }
.letter.n { background: linear-gradient(135deg, #ec4899 0%, #be185d 100%); }
.letter.g { background: linear-gradient(135deg, #14b8a6 0%, #0d9488 100%); }
.letter.o { background: linear-gradient(135deg, #f97316 0%, #c2410c 100%); }

/* Current Number Display */
.current-number-display {
    padding: 24px 16px;
    text-align: center;
}

.number-circle {
    width: 120px;
    height: 120px;
    margin: 0 auto;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--warning) 0%, #d97706 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    font-weight: 800;
    color: #fff;
    box-shadow: 0 12px 40px rgba(245, 158, 11, 0.4);
    animation: pulse 1s ease-in-out infinite;
}

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

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 12px;
    padding: 16px;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
    padding: 14px 20px;
    border: none;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
    flex: 1;
    min-width: 100px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(99, 102, 241, 0.4);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-secondary {
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid var(--border);
    color: var(--text);
}

.btn-secondary:hover {
    background: rgba(99, 102, 241, 0.15);
    border-color: var(--primary);
    transform: translateY(-2px);
}

/* Winner Modal */
.winner-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 300;
}

.winner-modal.hidden {
    display: none;
}

.winner-content {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--card-bg) 100%);
    border: 1px solid var(--border);
    padding: 32px 24px;
    border-radius: var(--radius-lg);
    text-align: center;
    max-width: 90%;
    animation: slideUp 0.4s ease-out;
}

.winner-icon {
    font-size: 64px;
    margin-bottom: 16px;
    animation: bounce 0.6s ease-out;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.winner-content h2 {
    font-size: 36px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--warning) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

#winners-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 16px 0;
    font-size: 14px;
}

.winning-card {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 6px;
    margin: 16px 0;
}

/* Wallet Section */
.wallet-card {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 0.8) 100%);
    border: 1px solid var(--border);
    padding: 20px;
    border-radius: 12px;
    margin: 16px;
    text-align: center;
}

.wallet-label {
    font-size: 14px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.wallet-amount {
    font-size: 28px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.wallet-actions {
    display: flex;
    gap: 12px;
    padding: 0 16px;
    margin: 16px 0;
}

/* Profile Section */
.profile-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px 16px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(236, 72, 153, 0.05) 100%);
    border-radius: 12px;
    margin: 16px;
}

.profile-avatar {
    font-size: 48px;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 50%;
}

.profile-info h2 {
    font-size: 18px;
    margin-bottom: 4px;
}

.profile-info p {
    color: var(--text-secondary);
    font-size: 12px;
}

.profile-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    padding: 0 16px;
    margin: 16px 0;
}

.stat {
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid var(--border);
    padding: 12px;
    border-radius: 10px;
    text-align: center;
}

.stat-value {
    font-size: 18px;
    font-weight: 800;
    color: var(--primary);
}

.stat-name {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 1;
    transition: opacity 0.3s ease-out;
}

.modal.hidden {
    display: none;
    opacity: 0;
}

.modal-content {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--card-bg) 100%);
    border: 1px solid var(--border);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    max-width: 90%;
    width: 320px;
    animation: slideUp 0.3s ease-out;
}

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

.modal-content h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text);
}

.lang-option {
    width: 100%;
    padding: 12px;
    margin-bottom: 10px;
    background: rgba(99, 102, 241, 0.05);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.lang-option:hover {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-color: var(--primary);
    transform: translateX(4px);
}

#close-modal {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    transition: var(--transition);
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#close-modal:hover {
    color: var(--text);
    transform: rotate(90deg);
}

/* Deposit Modal Styles */
.deposit-step {
    display: none;
}

.deposit-step.active {
    display: block;
}

.deposit-amount-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 16px;
}

.deposit-amount-btn {
    padding: 16px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(99, 102, 241, 0.05) 100%);
    border: 2px solid transparent;
    border-radius: 12px;
    color: var(--text);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.deposit-amount-btn:hover {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.25) 0%, rgba(99, 102, 241, 0.1) 100%);
}

.deposit-amount-btn.selected {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.3) 0%, rgba(99, 102, 241, 0.15) 100%);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
}

.file-upload-area {
    border: 2px dashed var(--border);
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    background: rgba(99, 102, 241, 0.05);
}

.file-upload-area:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.file-upload-area.dragover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.2);
}

/* Hidden class */
.hidden {
    display: none !important;
}

/* Rules Section */
.rules-section {
    padding: 16px;
    max-width: 600px;
    margin: 0 auto;
}

.rules-card {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
    animation: fadeInUp 0.5s ease-out;
}

.rules-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.rules-card .invalid-section {
    border-left: 4px solid #dc2626;
}

.rules-card .invalid-section h3 {
    color: #fca5a5;
}

.rules-card .pro-section {
    border-left: 4px solid #3b82f6;
}

.rules-card .pro-section h3 {
    color: #93c5fd;
}

.rules-card .valid-section {
    border-left: 4px solid #10b981;
}

.rules-card .valid-section h3 {
    color: #86efac;
}

.rules-card .multiple-section {
    border-left: 4px solid #10b981;
}

.rules-card .multiple-section h3 {
    color: #86efac;
}

/* Cartela Selection Styles */
.cartela-btn {
    padding: 8px;
    border: none;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    color: #fff;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Available = Transparent with border */
.cartela-btn.available {
    background: transparent;
    border: 1.5px solid #64748b;
    color: #cbd5e1;
}

.cartela-btn.available:hover {
    background: rgba(100, 116, 139, 0.1);
    border-color: #94a3b8;
    transform: scale(1.05);
}

/* Selected = Green */
.cartela-btn.selected {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border: none;
    color: #fff;
    box-shadow: 0 0 16px rgba(16, 185, 129, 0.6);
    transform: scale(1.08);
    font-weight: 800;
}

.cartela-btn.selected:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.8);
    transform: scale(1.12);
}

/* Taken = Orange (other user selected) */
.cartela-btn.taken {
    background: linear-gradient(135deg, #f97316 0%, #fb923c 100%);
    border: none;
    opacity: 0.8;
    cursor: not-allowed;
    color: #fff;
    box-shadow: 0 0 12px rgba(249, 115, 22, 0.4);
}

.cartela-btn.taken:hover {
    opacity: 0.8;
    cursor: not-allowed;
}

#cartela-grid {
    -webkit-user-select: none;
    user-select: none;
}

#lobby-section {
    padding: 16px;
}

#cartela-section h2 {
    margin-bottom: 16px;
}

#selected-count, #total-cost, #selected-stake {
    color: #10b981;
    font-weight: 700;
}

/* Card styling in game playing page - white background with purple text */
#card-display-section .card-cell {
    background: #f3f4f6 !important;
    color: #8b5cf6 !important;
    border: 1px solid rgba(139, 92, 246, 0.3) !important;
    font-weight: 700;
    font-size: 11px !important;
}

#card-display-section .card-cell.marked {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%) !important;
    color: #fff !important;
    border-color: #10b981 !important;
}

#card-display-section .card-cell.free {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%) !important;
    color: #fff !important;
    border-color: #10b981 !important;
}

/* Card Display Containers for Multiple Cartelas */
.card-display-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 5px;
    padding: 3px;
    flex: 0 0 auto;
}

.card-display-item .bingo-letters {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1px;
}

.card-display-item .bingo-letter {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: #fff;
    font-weight: 700;
    font-size: 7px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 1;
    border-radius: 2px;
}

.card-display-item .card-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1px;
}

.card-display-item .card-cell {
    aspect-ratio: 1;
    font-size: 7px;
    padding: 1px;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.5) 0%, rgba(15, 23, 42, 0.7) 100%) !important;
    border: 1px solid rgba(139, 92, 246, 0.2) !important;
    cursor: pointer;
    transition: none;
    position: relative;
    overflow: hidden;
}

.card-display-item .card-cell.marked {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%) !important;
    border-color: #10b981 !important;
    color: #fff;
}

.card-display-item .card-cell.free {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%) !important;
    border-color: #10b981 !important;
    color: #fff;
}

.card-display-item .cartela-number {
    text-align: center;
    padding: 2px 4px;
    color: #daa520;
    font-weight: 600;
    font-size: 7px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid #daa520;
    border-radius: 10px;
    margin-top: 1px;
}

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

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

/* Responsive */
@media (max-width: 480px) {
    body {
        padding-bottom: 90px;
    }
    
    header h1 {
        font-size: 24px;
    }
    
    .stake-buttons {
        grid-template-columns: 1fr;
    }
}