body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #8b0000, #ff4d4d);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-card {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.25);
    overflow: hidden;
    animation: fadeIn 0.6s ease-in-out;
}

/* Animasi */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(25px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-form {
    padding: 2.7rem;
}

/* LOGO */
.login-logo {
    width: 95px;
    height: auto;
    filter: drop-shadow(0 3px 8px rgba(0,0,0,0.3));
    animation: logoFade 0.8s ease-in-out;
}

@keyframes logoFade {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

/* TITLE */
.system-title {
    font-weight: 700;
    font-size: 1.6rem;
    color: #8b0000;
    text-shadow: 0px 2px 4px rgba(0,0,0,0.15);
    margin-bottom: 7px;
}

.login-title {
    font-weight: 700;
    color: #b30000;
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

/* Highlight input saat focus */
.form-control:focus {
    box-shadow: 0 0 8px rgba(255, 0, 0, 0.55);
    border-color: #ff0033;
}

/* Tombol gradient merah */
.btn-gradient {
    background: linear-gradient(90deg, #b30000, #ff4d4d);
    border: none;
    color: white;
    font-weight: 600;
    transition: 0.4s;
    border-radius: 8px;
}

.btn-gradient:hover {
    background: linear-gradient(90deg, #ff4d4d, #b30000);
}

/* Gambar sisi kiri */
.side-image {
    background: url('../images/ilustrasi.png') center/100% no-repeat;
    background-color: #ffe5e5;
}

/* Responsive */
@media (max-width: 768px) {
    .side-image { display: none; }
}