:root {
    --bg-dark: #1a1a2e;
    --bg-darker: #16213e;
    --bg-card: #0f3460;
    --accent-green: #00ff88;
    --accent-red: #ff4757;
    --accent-gold: #ffd700;
    --accent-purple: #9b59b6;
    --text-light: #eaeaea;
    --text-muted: #8b8b8b;
    --card-white: #ffffff;
    --card-red: #e74c3c;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
    min-height: 100vh;
    color: var(--text-light);
}

.btn {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: bold;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    margin: 0.25rem;
}

.btn:hover:not(:disabled) {
    transform: translateY(-2px);
}

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

.btn-primary {
    background: var(--accent-green);
    color: #1a1a1a;
}

.btn-primary:hover:not(:disabled) {
    background: #00cc6a;
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.5);
}

.btn-secondary {
    background: var(--text-muted);
    color: #1a1a1a;
}

.btn-secondary:hover:not(:disabled) {
    background: #a0a0a0;
}

.btn-gold {
    background: var(--accent-gold);
    color: #1a1a1a;
}

.btn-gold:hover:not(:disabled) {
    background: #e6c200;
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.2rem;
}

.bankroll {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--accent-green);
}

.bankroll span {
    color: var(--text-muted);
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--bg-card);
    border-radius: 10px;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

h1 {
    font-size: 2rem;
    color: var(--accent-gold);
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.back-btn {
    background: var(--bg-darker);
    color: var(--text-light);
    padding: 0.5rem 1rem;
    border: 1px solid var(--text-muted);
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.back-btn:hover {
    background: var(--text-muted);
    color: #1a1a1a;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal-content {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 15px;
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-content h2 {
    color: var(--accent-gold);
    margin-bottom: 1.5rem;
    text-align: center;
}

.rules-text {
    text-align: left;
}

.rules-text p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

.rules-text h4 {
    color: var(--accent-gold);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.rules-text ul {
    list-style: none;
    padding-left: 0;
}

.rules-text li {
    padding: 0.4rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-muted);
}

.rules-text li::before {
    content: "•";
    color: var(--accent-green);
    position: absolute;
    left: 0;
}

.rules-text strong {
    color: var(--accent-green);
}

.hidden {
    display: none !important;
}

@media (max-width: 600px) {
    h1 {
        font-size: 1.5rem;
    }

    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
}