body {
    margin: 0;
    height: 100vh;
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(120deg, #e0f2fe, #f8fafc);
    overflow: hidden;
    position: relative;
}

/* BACKGROUND EFFECT */
body::before {
    content: "";
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(2,132,199,0.25), transparent);
    top: -100px;
    left: -100px;
}

body::after {
    content: "";
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(56,189,248,0.25), transparent);
    bottom: -100px;
    right: -100px;
}

/* CONTAINER */
.container-login {
    display: flex;
    height: 100%;
}

/* LEFT PANEL */
.left-panel {
    flex: 1;
    color: #1e293b;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 80px;
}

.left-panel i {
    font-size: 70px;
    margin-bottom: 20px;
    color: #0284c7;
}

.left-panel h1 {
    font-size: 42px;
    font-weight: 700;
    background: linear-gradient(to right, #0284c7, #38bdf8);

    /* versi standar */
    background-clip: text;

    /* versi browser */
    -webkit-background-clip: text;

    /* supaya text transparan */
    -webkit-text-fill-color: transparent;
}

.left-panel p {
    color: #64748b;
    margin-top: 10px;
}

.feature-list {
    margin-top: 30px;
    color: #475569;
}

/* RIGHT PANEL */
.right-panel {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* GLASS CARD */
.login-card {
    width: 360px;
    padding: 30px;
    border-radius: 20px;
    backdrop-filter: blur(20px);
    background: rgba(255,255,255,0.7);
    color: #1e293b;
    border: 1px solid rgba(255,255,255,0.6);
    box-shadow: 
        0 10px 30px rgba(0,0,0,0.1),
        inset 0 1px 0 rgba(255,255,255,0.6);
    animation: fadeIn 0.8s ease;
    
    /* ACCENT */
    border-top: 4px solid #0284c7;
}

/* INPUT */
.form-control {
    background: rgba(255,255,255,0.8);
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    color: #1e293b;
}

.form-control:focus {
    border-color: #0284c7;
    box-shadow: 0 0 0 0.1rem rgba(2,132,199,0.2);
}

.form-control::placeholder {
    color: #64748b;
}

/* ICON */
.input-group-text {
    background: #f1f5f9;
    border: 1px solid #cbd5e1;
    color: #0284c7;
}

/* BUTTON */
.btn-login {
    width: 100%;
    background: linear-gradient(135deg, #0284c7, #38bdf8);
    border: none;
    color: white;
    border-radius: 8px;
    transition: 0.3s;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(2,132,199,0.3);
}

/* FOOTER */
.footer-text {
    position: absolute;
    bottom: 10px;
    left: 20px;
    color: #64748b;
    font-size: 12px;
}

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