:root {
    --lp3i-blue: #004269;
    --lp3i-teal: #009da5;
    --white: #ffffff;
    --glass: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Montserrat', sans-serif;
}

body {
    background: url('https://images.unsplash.com/photo-1618005182384-a83a8bd57fbe?auto=format&fit=crop&q=80') no-repeat center center fixed;
    background-size: cover;
    display: flex;
    justify-content: center;
    min-height: 100vh;
}

.main-screen {
    width: 100%;
    max-width: 430px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    min-height: 100vh;
    padding: 20px;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.2);
}

/* Nav Header */
.nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    background: var(--glass);
    padding: 10px 15px;
    border-radius: 18px;
    border: 1px solid var(--glass-border);
}

.back-btn {
    text-decoration: none;
    color: var(--lp3i-blue);
    font-weight: 700;
    font-size: 0.8rem;
}

/* Filter Tabs - Psikologi Desain Scroll */
.filter-container {
    margin: 0 -20px 25px -20px;
    /* Keluar container agar scroll mentok layar */
    overflow-x: auto;
    padding: 5px 20px;
    /* Padding kiri-kanan agar tab pertama tidak nempel */
    display: flex;
    -webkit-overflow-scrolling: touch;
    /* Smooth scroll iOS */
}

.filter-container::-webkit-scrollbar {
    display: none;
}

.tabs-wrapper {
    display: flex;
    gap: 8px;
    padding-right: 40px;
    /* Extra padding agar tab terakhir terpotong secara visual */
}

.tab-btn {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    padding: 8px 14px;
    /* Lebih kecil */
    border-radius: 12px;
    font-size: 0.7rem;
    /* Lebih kecil */
    font-weight: 700;
    color: var(--lp3i-blue);
    white-space: nowrap;
    /* Mencegah teks turun ke bawah */
    cursor: pointer;
    transition: 0.3s;
}

.tab-btn.active {
    background: var(--lp3i-blue);
    color: white;
    border-color: var(--lp3i-blue);
}

/* Alumni Card */
.alumni-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.alumni-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 12px;
    display: flex;
    gap: 12px;
    align-items: center;
    animation: fadeInUp 0.4s ease forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alumni-img-box {
    width: 85px;
    height: 85px;
    flex-shrink: 0;
    border-radius: 15px;
    overflow: hidden;
    border: 2px solid white;
}

.alumni-img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.alumni-info h3 {
    font-size: 0.9rem;
    font-weight: 800;
    color: var(--lp3i-blue);
}

.prodi-badge {
    font-size: 0.6rem;
    font-weight: 800;
    background: var(--lp3i-teal);
    color: white;
    padding: 2px 8px;
    border-radius: 10px;
    display: inline-block;
    margin-bottom: 5px;
}

.school-info {
    font-size: 0.7rem;
    color: #555;
    margin-bottom: 8px;
}

.work-detail {
    background: rgba(255, 255, 255, 0.4);
    padding: 6px 10px;
    border-radius: 10px;
    border-left: 3px solid var(--lp3i-blue);
}

.work-detail strong {
    display: block;
    font-size: 0.75rem;
    color: var(--lp3i-blue);
}

.work-detail span {
    font-size: 0.7rem;
    color: #444;
}

footer {
    text-align: center;
    padding: 20px;
    font-size: 0.65rem;
    color: #666;
}