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

body {
    font-family: 'Segoe UI', sans-serif;
    min-height: 100vh;

    display: flex;
    justify-content: center;
    align-items: center;

    background: linear-gradient(135deg,
            #0f172a,
            #1e3a8a,
            #2563eb);

    overflow: hidden;
    position: relative;
}

/* Dekorasi Background */

body::before {
    content: '';
    position: absolute;

    width: 500px;
    height: 500px;

    border-radius: 50%;

    background: rgba(255, 255, 255, .08);

    top: -200px;
    left: -150px;
}

body::after {
    content: '';
    position: absolute;

    width: 400px;
    height: 400px;

    border-radius: 50%;

    background: rgba(255, 255, 255, .05);

    bottom: -150px;
    right: -100px;
}

/* Card Login */

.login-card {

    width: 380px;

    background: rgba(255, 255, 255, .96);

    backdrop-filter: blur(10px);

    border-radius: 24px;

    padding: 35px;

    box-shadow:
        0 20px 50px rgba(0, 0, 0, .25);

    position: relative;
    z-index: 10;
}

/* Judul */

.login-title {
    text-align: center;
    margin-bottom: 30px;
}

.login-title h2 {
    font-size: 28px;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 8px;
}

.login-title p {
    color: #64748b;
    font-size: 14px;
}

/* Label */

.form-label {
    font-weight: 600;
    color: #334155;
    margin-bottom: 8px;
}

/* Input */

.form-control {

    height: 48px;

    border-radius: 12px;

    border: 1px solid #d1d5db;

    padding: 0 15px;

    transition: .3s;
}

.form-control:focus {

    border-color: #2563eb;

    box-shadow:
        0 0 0 4px rgba(37, 99, 235, .15);
}

/* Tombol */

.btn-login {

    width: 100%;
    height: 48px;

    border: none;

    border-radius: 12px;

    background: linear-gradient(135deg,
            #2563eb,
            #1d4ed8);

    color: white;

    font-size: 16px;
    font-weight: 600;

    transition: .3s;
}

.btn-login:hover {

    transform: translateY(-2px);

    box-shadow:
        0 10px 25px rgba(37, 99, 235, .35);
}

/* Alert */

.alert {
    padding: 10px 15px;
    font-size: 14px;
    border-radius: 10px;
}