* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #0b0718;
    color: #fff;
}

.header {
    background: #120c27;
    padding: 18px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #2e2455;
}

.logo {
    font-size: 26px;
    font-weight: bold;
    color: #7c5cff;
}

.logo span {
    color: #00ffb2;
}

.nav a {
    color: #c9c3ff;
    text-decoration: none;
    margin-left: 20px;
    font-weight: bold;
}

.btn {
    background: linear-gradient(135deg, #7c5cff, #4f31d6);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    border: none;
    cursor: pointer;
}

.hero {
    min-height: 420px;
    background:
        linear-gradient(90deg, rgba(11,7,24,.95), rgba(11,7,24,.35)),
        url('https://wallpapercave.com/wp/wp5291653.jpg');
    background-size: cover;
    background-position: center;
    padding: 70px 60px;
}

.hero h1 {
    font-size: 58px;
    margin: 0 0 20px;
}

.hero p {
    font-size: 20px;
    color: #d8d2ff;
    max-width: 550px;
}

.section {
    padding: 45px 50px;
}

.section-title {
    font-size: 32px;
    margin-bottom: 30px;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 28px;
}

.case-card {
    background: #15102b;
    border: 1px solid #30265c;
    border-radius: 18px;
    padding: 22px;
    text-align: center;
    transition: .25s;
    position: relative;
    overflow: hidden;
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 0 30px rgba(124, 92, 255, .45);
}

.case-card img {
    width: 100%;
    height: 160px;
    object-fit: contain;
}

.case-card h3 {
    font-size: 20px;
    margin: 18px 0 10px;
}

.price {
    color: #00ffb2;
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 18px;
}

.auth-box {
    width: 420px;
    max-width: 92%;
    margin: 70px auto;
    background: #15102b;
    padding: 35px;
    border-radius: 18px;
    border: 1px solid #30265c;
}

.auth-box h2 {
    text-align: center;
    margin-bottom: 25px;
}

.input {
    width: 100%;
    padding: 14px;
    margin-bottom: 15px;
    border-radius: 8px;
    border: 1px solid #3c3168;
    background: #0c0820;
    color: white;
}

.alert {
    background: #341426;
    color: #ff8dab;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 15px;
}

.success {
    background: #123528;
    color: #00ffb2;
}

.footer {
    padding: 35px;
    background: #090614;
    text-align: center;
    color: #867caf;
    margin-top: 40px;
}