:root {
    --warna-utama: #165DFF;
    --warna-sekunder: #FF7D00;
    --warna-gelap: #1D2129;
    --warna-abu: #86909C;
    --warna-muda: #F2F3F5;
}

body {
    font-family: 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: #f8f9fa;
}

.bg-utama {
    background-color: var(--warna-utama) !important;
}

.bg-sekunder {
    background-color: var(--warna-sekunder) !important;
}

.text-utama {
    color: var(--warna-utama) !important;
}

.text-sekunder {
    color: var(--warna-sekunder) !important;
}

.btn-utama {
    background-color: var(--warna-utama);
    color: white;
}

.btn-utama:hover {
    background-color: #0042d1;
    color: white;
}

.btn-sekunder {
    background-color: var(--warna-sekunder);
    color: white;
}

.btn-sekunder:hover {
    background-color: #e67000;
    color: white;
}

.card-menu {
    border: none;
    border-radius: 12px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    overflow: hidden;
}

.card-menu:hover {
    transform: translateY(-6px);
    box-shadow: 0 8px 24px rgba(22, 93, 255, 0.15);
}

.card-menu .icon-box {
    font-size: 40px;
    color: var(--warna-utama);
    margin-bottom: 15px;
}

/* Gaya untuk Slider Materi */
.swiper {
    width: 100%;
    height: 75vh;
    padding: 20px 0;
}

.swiper-slide {
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    overflow-y: auto;
    height: 100%;
}

.swiper-slide h2 {
    color: var(--warna-utama);
    border-bottom: 2px solid var(--warna-muda);
    padding-bottom: 10px;
    margin-bottom: 20px;
}

/* Bagian Game & LKPD */
.bagian-game {
    background-color: #fff7ed;
    border-left: 5px solid var(--warna-sekunder);
}

.bagian-lkpd {
    background-color: #f0f9ff;
    border-left: 5px solid var(--warna-utama);
}

.bg-gelap {
    background-color: var(--warna-gelap) !important;
}