/* ===================================================
   TEMA LOGIN 3D NEON GLASSMORPHISM - SPECTRA
=================================================== */
body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: #0f172a; /* Slate Gelap Premium */
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    position: relative;
    overflow: hidden;
}

/* --- MESIN ANIMASI 3D BOLA CAHAYA MELELEH (ORBS) --- */
body::before, body::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: 0;
    opacity: 0.4;
}
/* Bola Oren Spectra Kiri Atas */
body::before {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #ff5a1f 0%, rgba(255,90,31,0) 70%);
    top: -100px;
    left: -100px;
    animation: floatOrbOne 12s ease-in-out infinite;
}
/* Bola Indigo Kanan Bawah */
body::after {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #4f46e5 0%, rgba(79,70,229,0) 70%);
    bottom: -150px;
    right: -150px;
    animation: floatOrbTwo 15s ease-in-out infinite;
}

/* KARTU LOGIN UTAMA (EFEK KACA MELAYANG) */
.login-card {
    background: rgba(15, 23, 42, 0.6); /* Kaca gelap transparan */
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 28px;
    box-shadow: 
        0 30px 60px rgba(0, 0, 0, 0.4),
        inset 0 2px 4px rgba(255, 255, 255, 0.1);
    padding: 45px 40px;
    width: 100%;
    max-width: 420px;
    z-index: 1;
    transform: translateZ(0);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s ease;
}
.login-card:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: 
        0 40px 80px rgba(255, 90, 31, 0.15),
        0 20px 40px rgba(0, 0, 0, 0.5),
        inset 0 2px 4px rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 90, 31, 0.3);
}

.login-title { 
    font-weight: 800; 
    color: #ffffff; 
    font-size: 2rem; 
    letter-spacing: -0.5px;
}

/* FORM INPUT MODERN */
.form-floating > .form-control {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    color: #ffffff;
    transition: all 0.3s ease;
}
.form-floating > .form-control:focus {
    background: rgba(255, 255, 255, 0.07);
    border-color: #ff5a1f; /* Nyala Oren Spectra pas diklik */
    box-shadow: 0 0 0 0.25rem rgba(255, 90, 31, 0.15);
    color: #ffffff;
}
.form-floating > label { 
    color: #94a3b8; 
}
.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label {
    color: #ff5a1f;
}

/* TOMBOL MASUK NEON SPECTRA */
.btn-login {
    background: linear-gradient(135deg, #ff733b 0%, #ff5a1f 100%);
    border: none;
    border-radius: 16px;
    padding: 14px;
    font-weight: 700;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(255, 90, 31, 0.3);
    transition: all 0.3s ease;
}
.btn-login:hover {
    background: linear-gradient(135deg, #ff5a1f 0%, #d94411 100%);
    box-shadow: 0 12px 25px rgba(255, 90, 31, 0.5);
    transform: translateY(-2px);
}

/* TIMELINE LINTAS ANIMASI */
@keyframes floatOrbOne {
    0% { transform: translateY(0) scale(1); }
    50% { transform: translateY(40px) scale(1.1); }
    100% { transform: translateY(0) scale(1); }
}
@keyframes floatOrbTwo {
    0% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-50px) scale(1.05); }
    100% { transform: translateY(0) scale(1); }
}