:root {
    --bg-dark: #0f0f13;
    --card-bg: #1a1a24;
    --primary: #6366f1;
    --accent: #8b5cf6;
    --text-main: #ffffff;
    --text-muted: #9ca3af;
    --success: #10b981;
    --mars: #ff5500;
    --gizmo: #ffd700;
    --tribulx: #38bdf8;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

.background-mesh {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background:
        radial-gradient(circle at 15% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(139, 92, 246, 0.15) 0%, transparent 50%);
    z-index: -1;
}

header {
    text-align: center;
    padding: 4rem 1rem;
    animation: fadeInDown 0.8s ease-out;
}

header h1 {
    font-size: 3.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    font-weight: 300;
}

.packs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 0 2rem 4rem;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.pack-card {
    background: rgba(26, 26, 36, 0.6);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: fadeInUp 0.8s ease-out backwards;
}

.pack-card:nth-child(1) {
    animation-delay: 0.1s;
}

.pack-card:nth-child(2) {
    animation-delay: 0.2s;
}

.pack-card:nth-child(3) {
    animation-delay: 0.3s;
}

.pack-card:nth-child(4) {
    animation-delay: 0.4s;
}

.pack-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}

#solar-system:hover {
    border-color: var(--mars);
    box-shadow: 0 10px 30px rgba(255, 85, 0, 0.2);
}

#gizmo-vaina:hover {
    border-color: var(--gizmo);
    box-shadow: 0 10px 30px rgba(255, 215, 0, 0.2);
}

#tribul-x:hover {
    border-color: var(--tribulx);
    box-shadow: 0 10px 30px rgba(56, 189, 248, 0.2);
}

#tribul-antiq:hover {
    border-color: #d4a574;
    box-shadow: 0 10px 30px rgba(212, 165, 116, 0.2);
}

#tribul-universe:hover {
    border-color: var(--accent);
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.2);
}

#tribuk-zen:hover {
    border-color: var(--success);
    box-shadow: 0 10px 30px rgba(16, 185, 201, 0.2);
}

#tribul-mobilier:hover {
    border-color: #cd853f;
    box-shadow: 0 10px 30px rgba(205, 133, 63, 0.2);
}


.card-image {
    height: 200px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.price-tag {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    padding: 0.5rem 1rem;
    border-radius: 99px;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.price-tag.free {
    color: #60a5fa;
    border-color: rgba(96, 165, 250, 0.2);
}

.card-content {
    padding: 1.5rem;
}

.card-content h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.pack-description {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.features-list {
    list-style: none;
    margin-bottom: 2rem;
}

.features-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #d1d5db;
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

.cta-btn {
    width: 100%;
    padding: 0.875rem;
    border: none;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: white;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: opacity 0.2s;
}

.cta-btn:hover {
    opacity: 0.9;
}

.cta-btn.secondary {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.cta-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

footer {
    margin-top: auto;
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: 0.875rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2.5rem;
    }

    .packs-grid {
        grid-template-columns: 1fr;
    }
}