/* =======================================
   UPGRADE UI MATERI LIST — MODERN CLEAN
   ======================================= */

/* ===== Global ===== */
body {
    background-color: var(--bg-page, #f3f5f9);
    color: var(--text-main, #1f1f1f);
    font-family: "Inter", sans-serif;
}

/* ===== HERO MODERN ===== */
.hero-section {
    background: linear-gradient(140deg, #6e7cfb, #9d66ff, #ff73c3);
    background-size: 200% 200%;
    animation: gradientMove 8s ease infinite;
    border-bottom-left-radius: 60px;
    border-bottom-right-radius: 60px;
    padding-top: 90px;
    padding-bottom: 90px;
    color: white !important;
    text-shadow: 0 4px 20px rgba(0,0,0,0.22);
}

@keyframes gradientMove {
    0% { background-position: left top; }
    50% { background-position: right bottom; }
    100% { background-position: left top; }
}

.hero-section h1 {
    font-size: 3rem;
    font-weight: 800;
}
.hero-section p {
    font-size: 1.2rem;
    opacity: .95;
}

/* ===== CARD ESTETIK ===== */
.card {
    border: none;
    border-radius: 22px;
    overflow: hidden;
    background: #ffffff;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    transition: transform .25s ease, box-shadow .25s ease;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 28px rgba(0,0,0,0.12);
}

/* gambar */
.card-img-top {
    height: 185px;
    object-fit: cover;
    transition: transform .4s ease;
}

.card:hover .card-img-top {
    transform: scale(1.05);
}

/* badge estetik */
.category-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(0,0,0,0.65);
    backdrop-filter: blur(4px);
    padding: 6px 14px;
    font-size: 0.78rem;
    border-radius: 12px;
    color: #fff;
    z-index: 10;
    font-weight: 500;
}

/* card body */
.card-body {
    padding: 22px;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #245dff;
}
.card-text {
    font-size: 0.87rem;
    line-height: 1.45;
    color: #5c5c5c;
}

/* tombol */
.btn-warning {
    font-weight: 600;
    padding: 10px 22px;
    border-radius: 14px;
    background: #ffcc00;
    border: none;
    box-shadow: 0 6px 14px rgba(255, 204, 0, 0.35);
    transition: 0.25s ease;
}

.btn-warning:hover {
    background: #ffdd33;
    box-shadow: 0 8px 18px rgba(255, 204, 0, 0.45);
    transform: translateY(-3px);
}

/* ===== ANIMASI KARTU ===== */
.stagger-animate {
    animation: fadeUp .7s ease forwards;
    opacity: 0;
}
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(25px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 576px) {
    .hero-section {
        padding-top: 60px;
        padding-bottom: 60px;
    }
    .hero-section h1 {
        font-size: 2rem;
    }
    .card-img-top {
        height: 150px;
    }
}

/* ==========================================
   HERO DARK MODE — MATERI LIST PAGE
========================================== */
body.dark-mode .hero-section {
    background: linear-gradient(90deg, #0f172a 0%, #334155 100%) !important;
    color: #ffffff !important;
    text-shadow: 0 4px 20px rgba(0,0,0,0.45) !important;
}
/* ==========================================
   SECTION BACKGROUND — DARK MODE
========================================== */
body.dark-mode .dynamic-bg {
    background: #0d0e10 !important;
}

/* ==========================================
   KARTU MATERI — DARK MODE
========================================== */
body.dark-mode .card {
    background: #141416 !important;
    border: 1px solid rgba(255,255,255,0.06) !important;
    box-shadow: 0 4px 18px rgba(0,0,0,0.45) !important;
}

body.dark-mode .card-title {
    color: #ffdd55 !important;
}

body.dark-mode .card-text {
    color: #d0d0d0 !important;
}

body.dark-mode .category-badge {
    background: rgba(255,255,255,0.15) !important;
    color: #fff !important;
    backdrop-filter: blur(6px);
}

/* Tombol pada card */
body.dark-mode .btn-warning {
    background: var(--accent) !important;
    color: #000 !important;
}
/* ==========================================
   GAMBAR CARD — DARK MODE
========================================== */
body.dark-mode .card-img-top {
    filter: brightness(0.88) contrast(1.05);
}