:root {
    --bg-primary: #080616;
    --bg-card: rgba(255, 255, 255, 0.05);
    --text-primary: #FFFFFF;
    --border-color: rgba(255, 255, 255, 0.1);
}
[data-theme="light"] {
    --bg-primary: #F8FAFC;
    --bg-card: #FFFFFF;
    --text-primary: #0F172A;
    --border-color: #E2E8F0;
}
body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: all 0.3s ease;
}
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
}
.btn-primary {
    background: linear-gradient(135deg, #2F2FE4 0%, #1A1A99 100%);
    transition: transform 0.3s;
}
.btn-primary:hover { transform: translateY(-2px); }
.btn-gold {
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    color: #080616;
    transition: transform 0.3s;
}
.btn-gold:hover { transform: translateY(-2px); }
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    transition: all 0.3s;
    border-radius: 1.5rem;
}
.card:hover { transform: translateY(-5px); }
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate-fade-in { animation: fadeIn 1s ease-out; }
.lang-selector { cursor: pointer; }
.lang-selector:hover { opacity: 0.7; }