@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;600;800&display=swap');

:root {
    --glass: rgba(255, 255, 255, 0.03);
    --glass-heavy: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.12);
    --primary-red: #ff0000;
    --bg-dark: #07070b;
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    margin: 0; background-color: var(--bg-dark); color: white;
    background-image: 
        radial-gradient(circle at 15% 15%, rgba(255, 255, 255, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 85% 85%, rgba(255, 0, 0, 0.1) 0%, transparent 40%);
    overflow-x: hidden;
    min-height: 100vh;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

@keyframes flowText {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}

.animated-text {
    background: linear-gradient(90deg, #ffffff, #ff0000, #ffffff);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: flowText 4s linear infinite;
    font-weight: 800;
}

nav {
    background: rgba(255, 255, 255, 0.01);
    backdrop-filter: blur(25px); -webkit-backdrop-filter: blur(25px);
    padding: 25px 0; border-bottom: 1px solid var(--glass-border);
    position: sticky; top: 0; z-index: 1000;
}

.brand-logo { margin: 0; font-size: 1.6rem; letter-spacing: -1px; }

nav ul { list-style: none; display: flex; gap: 25px; float: right; margin-top: -35px; }
nav ul li a { text-decoration: none; color: rgba(255,255,255,0.6); font-weight: 600; transition: 0.3s; }
nav ul li a:hover { color: var(--primary-red); }

header { text-align: center; padding: 100px 20px; }
header h1 { font-size: 4.5rem; margin: 0; letter-spacing: -2px; }
header p { opacity: 0.5; font-size: 1.1rem; margin-top: 10px; }

.section-title { text-align: center; margin: 80px 0 40px; text-transform: uppercase; letter-spacing: 4px; font-size: 0.9rem; opacity: 0.8; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 40px; }

.card {
    background: var(--glass);
    backdrop-filter: blur(30px); -webkit-backdrop-filter: blur(30px);
    border-radius: 45px;
    padding: 45px 35px; 
    border: 1px solid var(--glass-border);
    text-align: center; 
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.card:hover { 
    transform: translateY(-15px) scale(1.02); 
    border-color: rgba(255, 0, 0, 0.5);
    background: var(--glass-heavy);
    box-shadow: 0 30px 60px rgba(0,0,0,0.4), 0 0 20px rgba(255, 0, 0, 0.1);
}

.rank-card { 
    max-width: 480px; 
    margin: 0 auto; 
    border: 1px solid rgba(255, 255, 255, 0.12); 
    background: rgba(255, 255, 255, 0.03);
}

.rank-badge {
    background: linear-gradient(90deg, #ff4757, #ff0000);
    color: white; padding: 8px 20px; border-radius: 50px;
    font-size: 10px; font-weight: 800; margin-bottom: 20px;
    display: inline-block; box-shadow: 0 10px 20px rgba(255, 0, 0, 0.2);
}

.price-container { margin: 25px 0; }
.original-price { 
    font-size: 1rem; color: rgba(255,255,255,0.3); 
    text-decoration: line-through; text-decoration-color: #ff4757; font-weight: 600;
}
.price { font-size: 2rem; margin: 5px 0; }

.selector-group { margin: 30px 0; text-align: left; }
.selector-group label { font-size: 11px; opacity: 0.4; font-weight: 800; margin-left: 15px; }

input[type=number] {
    width: 100%; padding: 18px; background: rgba(0,0,0,0.4);
    border: 1px solid var(--glass-border); border-radius: 20px;
    color: white; font-size: 1.3rem; text-align: center; margin: 12px 0;
    font-weight: 800; font-family: inherit; transition: 0.3s;
}
input[type=number]:focus { border-color: var(--primary-red); background: rgba(0,0,0,0.6); }

.quick-select { display: flex; gap: 10px; }
.quick-select button {
    flex: 1; padding: 12px; background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border); color: white;
    border-radius: 15px; cursor: pointer; transition: 0.3s; font-weight: 700;
}
.quick-select button:hover { background: var(--primary-red); border-color: white; transform: scale(1.1); }

.btn-buy {
    display: block; background: #ffffff; color: #000000;
    text-decoration: none; padding: 22px; border-radius: 25px;
    font-weight: 800; margin-top: 20px; transition: 0.4s;
    box-shadow: 0 15px 30px rgba(255,255,255,0.1);
}
.btn-buy:hover { 
    background: var(--primary-red); color: white; 
    transform: scale(1.05);
    box-shadow: 0 20px 40px rgba(255, 0, 0, 0.4);
}

.features { list-style: none; padding: 0; margin: 30px 0; text-align: left; }
.features li { padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.03); color: rgba(255,255,255,0.6); font-size: 14px; }

.key-img { max-width: 130px; margin-bottom: 20px; filter: drop-shadow(0 20px 30px rgba(0,0,0,0.5)); transition: 0.5s; }
.card:hover .key-img { transform: rotate(5deg) scale(1.1); }

footer { text-align: center; padding: 100px 20px; opacity: 0.2; font-size: 12px; letter-spacing: 1px; }

input::-webkit-outer-spin-button, input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }