:root {
    --navy-primary: #040d2a;      /* Navy ADTR */
    --navy-light: #0a1945;        /* Navy Muda */
    --gold-adtr: #DAA520;         /* Gold ADTR */
    --gold-hover: #f0c040;
    --glass-white: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(218, 165, 32, 0.2);
    --text-light: #ffffff;
    --primary-purple: #040d2a;    /* Menyesuaikan variabel animasi Anda */
    --accent-pink: #DAA520;       /* Menyesuaikan aksen ke Gold */
}

/* 1. BODY: Kunci agar Tengah & Bisa Scroll */
body {
    margin: 0;
    padding: 0;
    font-family: 'Poppins', sans-serif;
    color: var(--text-light);
    background: var(--navy-primary);
    
    /* Layout Flexbox untuk centering */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh; /* Minimal setinggi layar agar bisa memanjang */
    width: 100%;
    overflow-x: hidden; /* Mencegah scroll ke samping */
}

/* 2. BACKGROUND & SHAPES: Menggunakan FIXED agar tidak putus saat scroll */
.animated-gradient-bg {
    position: fixed; 
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--navy-primary), #0a1945, #001a33);
    background-size: 400% 400%;
    animation: initialFastGradient 2s ease-out forwards, 
               slowGradientLoop 18s ease infinite 2s;
    z-index: -2;
}

.floating-shape {
    position: fixed; /* Tetap di layar meski di-scroll */
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    border-radius: 50%;
    z-index: -1;
    animation: floatShape 15s ease-in-out infinite alternate;
}

/* 3. WRAPPER: Memberi ruang agar form tidak mentok layar */
.login-container-wrapper {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 60px 20px; /* Jarak aman atas & bawah untuk scroll */
    box-sizing: border-box;
    z-index: 2;
}

/* 4. CARD: Glassmorphism & Centering */
.login-card-wah {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 0px solid var(--glass-border);
    border-radius: 25px;
    padding: 40px 30px;
    box-shadow: 0 25px 50px rgba(0,0,0,0.5);
    max-width: 400px;
    width: 100%;
    margin: 0 auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.copyright-wah {
    margin-top: 25px;
    color: rgba(255, 255, 255, 0.6); /* Putih transparan agar semi-navy tetap menonjol */
    font-size: 0.8rem;
    text-align: center;
    line-height: 1.6;
    width: 100%;
    z-index: 5;
    position: relative;
}

/* 5. FORM ELEMENTS */
.login-header-logo img {
    width: 120px;
    height: 120px;
    margin-bottom: 25px;
    object-fit: contain;
    animation: floatingLogo 4s ease-in-out infinite alternate;
}

.form-group-wah {
    position: relative;
    margin-bottom: 20px;
    width: 100%;
}

.form-control-wah {
    width: 100%;
    background: var(--glass-white) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    border-radius: 12px !important;
    padding: 12px 15px 12px 45px !important;
    color: #fff !important;
    outline: none;
}

.icon-wah {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gold-adtr);
}

.btn-submit-wah {
    background: var(--gold-adtr);
    color: var(--navy-primary);
    border: none;
    padding: 14px;
    border-radius: 12px;
    width: 100%;
    font-weight: 700;
    text-transform: uppercase;
    cursor: pointer;
    transition: 0.3s;
}

.btn-submit-wah:hover {
    background: var(--gold-hover);
    transform: translateY(-2px);
}

/* --- ANIMASI ASLI ANDA (TIDAK DIUBAH) --- */
@keyframes initialFastGradient {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}
@keyframes slowGradientLoop {
    0% { background-position: 100% 50%; }
    50% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}
@keyframes floatShape {
    0% { transform: translate(0, 0) rotate(0deg); opacity: 0.8; }
    33% { transform: translate(20px, -30px) rotate(10deg); opacity: 0.9; }
    66% { transform: translate(-10px, 40px) rotate(-5deg); opacity: 0.7; }
    100% { transform: translate(0, 0) rotate(0deg); opacity: 0.8; }
}
@keyframes floatingLogo {
    0% { transform: translateY(0px); }
    100% { transform: translateY(-10px); }
}

/* Shape positions */
.shape-1 { width: 150px; height: 150px; top: 10%; left: 8%; }
.shape-2 { width: 200px; height: 200px; bottom: 5%; right: 12%; }
/* ... dst sesuai kode Anda ... */