* {
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    margin: 0;
    min-height: 100vh;
    background: linear-gradient(180deg, #0a1a33, #050b18);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}

.card {
    width: 420px;
    max-width: 95%;
    background: #0f172a;
    padding: 30px;
    border-radius: 18px;
    box-shadow: 0 0 40px rgba(0,0,0,.6);
}

.logo {
    text-align: center;
    font-size: 22px;
    margin-bottom: 6px;
}

.subtitle {
    text-align: center;
    opacity: .7;
    margin-bottom: 25px;
}

input, select, button {
    width: 100%;
    padding: 12px;
    margin-bottom: 12px;
    border-radius: 10px;
    border: none;
    background: #020617;
    color: #fff;
}

button {
    background: linear-gradient(90deg, #3b82f6, #2563eb);
    font-weight: bold;
    cursor: pointer;
}

button:hover {
    opacity: .9;
}

.error {
    background: #7f1d1d;
    padding: 10px;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 15px;
}

.top {
    position: absolute;
    top: 20px;
    right: 20px;
}

a {
    color: #60a5fa;
    text-decoration: none;
}