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

:root {
    --primary-cyan: #00f5ff;
    --primary-purple: #7b00ff;
    --primary-pink: #ff006e;
    --primary-yellow: #ffbe0b;
    --bg-dark: #0a0e27;
    --bg-darker: #050811;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

.stars {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(2px 2px at 20% 30%, white, transparent),
        radial-gradient(2px 2px at 60% 70%, white, transparent),
        radial-gradient(1px 1px at 50% 50%, white, transparent),
        radial-gradient(1px 1px at 80% 10%, white, transparent),
        radial-gradient(2px 2px at 90% 40%, white, transparent),
        radial-gradient(1px 1px at 33% 60%, white, transparent),
        radial-gradient(1px 1px at 55% 80%, white, transparent);
    background-size: 200% 200%;
    background-position: 50% 50%;
    animation: twinkle 20s infinite;
    opacity: 0.4;
    z-index: 0;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.8; }
}

.container {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

.header {
    text-align: center;
    padding: 4rem 0 3rem;
    position: relative;
}

.logo {
    font-size: 4rem;
    font-weight: 900;
    letter-spacing: 0.3em;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-purple), var(--primary-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    position: relative;
    display: block;
    text-align: center;
    width: 100%;
    margin-left: 1.5rem;
    transform: translateX(1rem);
}

.logo-accent {
    font-size: 2rem;
    color: var(--primary-cyan);
    margin-left: 0.5rem;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.1); }
}

.tagline {
    font-size: 1.1rem;
    color: var(--text-secondary);
    letter-spacing: 0.1em;
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.tagline-sub {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    line-height: 1.6;
    opacity: 0.85;
}

.tagline-warning {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
    line-height: 1.5;
    opacity: 0.7;
    font-style: italic;
}

.intro {
    text-align: center;
    margin-bottom: 4rem;
    padding: 2rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.products-grid.single {
    grid-template-columns: minmax(320px, 600px);
    justify-content: center;
}

.product-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2rem;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

.product-card:hover::before {
    left: 100%;
}

.product-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-cyan);
    box-shadow: 
        0 20px 40px rgba(0, 245, 255, 0.2),
        0 0 30px rgba(123, 0, 255, 0.1);
}

.product-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(135deg, var(--primary-pink), var(--primary-purple));
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    box-shadow: 0 4px 15px rgba(255, 0, 110, 0.3);
}

.product-image {
    width: 100%;
    height: 250px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.product-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.product-placeholder svg {
    width: 200px;
    height: 200px;
    filter: drop-shadow(0 0 20px rgba(0, 245, 255, 0.5));
}

.product-info {
    text-align: center;
}

.product-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.product-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1.5rem;
}

.product-price {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.buy-btn {
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-purple));
    border: none;
    color: white;
    padding: 0.75rem 2rem;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    overflow: hidden;
}

.buy-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.buy-btn:hover::before {
    width: 300px;
    height: 300px;
}

.buy-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(0, 245, 255, 0.4);
}

.buy-btn:active {
    transform: scale(0.98);
}

.footer {
    text-align: center;
    padding: 3rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-top: 1px solid var(--card-border);
    margin-top: 2rem;
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.3s;
}

.loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.loader {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(0, 245, 255, 0.2);
    border-top-color: var(--primary-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay p {
    color: var(--text-primary);
    font-size: 1.1rem;
    letter-spacing: 0.1em;
}

@media (max-width: 768px) {
    .logo {
        font-size: 2.5rem;
        letter-spacing: 0.2em;
    }

    .products-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .container {
        padding: 1rem;
    }

    .product-footer {
        flex-direction: column;
        gap: 1rem;
    }

    .buy-btn {
        width: 100%;
    }
}