@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;600;800&display=swap');

:root {
    --primary: #1e40af;
    --glass: rgba(255, 255, 255, 0.95);
}

body { 
    font-family: 'Plus Jakarta Sans', sans-serif; 
    margin: 0; 
    min-height: 100vh; 
    transition: background 0.5s ease;
}

/* --- Gaya Halaman Peserta Didik --- */
.glass { 
    background: var(--glass); 
    backdrop-filter: blur(12px); 
    border: 1px solid rgba(255,255,255,0.3); 
}

.card-angkatan {
    height: 160px;
    border-radius: 30px;
    overflow: hidden;
    position: relative;
    cursor: pointer;
    transition: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.3);
}

.card-angkatan:hover { transform: translateY(-5px); }
.card-angkatan:active { scale: 0.92; }

.overlay-card {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.85), transparent);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.5rem;
    color: white;
}

/* --- Gaya Halaman Admin --- */
.nav-tab.active { 
    color: var(--primary); 
    border-bottom: 4px solid var(--primary); 
    background: white; 
}

.tab-item { transition: all 0.3s ease; }

/* --- Responsivitas Input --- */
input, button, select {
    -webkit-tap-highlight-color: transparent;
}

/* Custom Scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; }