/* =====================
   RESET & GLOBAL
===================== */
* {
    box-sizing: border-box;
}

body {
    background:
        radial-gradient(circle at top, rgba(255,215,0,.12), transparent 50%),
        linear-gradient(rgba(0,0,0,.65), rgba(0,0,0,.9)),
        url("images/bg-dragon.webp") center / cover no-repeat fixed;
}

/* =====================
   SPLIT LAYOUT
===================== */
.split-layout {
    display: flex;
    min-height: 100vh;
}

.left-side,
.right-side {
    background: transparent;
}

/* =====================
   LEFT SIDE
===================== */
.left-side {
    flex: 1;
    padding: 20px;
}

/* Slider */
.mobile-slider {
    background: rgba(0,0,0,0.45);
    backdrop-filter: blur(10px);
    border-radius: 18px;
    overflow: hidden;
    margin-bottom: 20px;
}

.swiper-slide img {
    width: 100%;
    height: auto;
    border-radius: 14px;
}

/* Promo Grid */
.promo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
    background: rgba(0,0,0,0.45);
    backdrop-filter: blur(10px);
    padding: 14px;
    border-radius: 18px;
}

.grid-item img {
    width: 100%;
    height: auto;
    border-radius: 12px;
}

/* =====================
   RIGHT SIDE
===================== */
.right-side {
    flex: 0 0 420px;
    padding: 20px;
    display: flex;
    align-items: center;
}

/* Glass Card */
.glass-card {
    width: 100%;
    background: linear-gradient(
        160deg,
        rgba(255,215,0,0.15),
        rgba(0,0,0,0.85)
    );
    backdrop-filter: blur(14px);
    border-radius: 24px;
    padding: 28px;
    border: 1px solid rgba(255,215,0,0.25);
    box-shadow: 0 0 35px rgba(255,215,0,0.25);
}

/* Title */
.title {
    font-family: 'Orbitron', sans-serif;
    text-align: center;
    color: gold;
    margin-bottom: 6px;
}

.subtitle {
    text-align: center;
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: 22px;
}

/* =====================
   BUTTONS
===================== */
.link-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.custom-btn,
.btn-daftar {
    text-decoration: none;
    text-align: center;
    background: linear-gradient(135deg, #ffd700, #ff9f00);
    color: #000;
    padding: 12px;
    border-radius: 14px;
    font-weight: 700;
    transition: all 0.25s ease;
}

.custom-btn:hover,
.btn-daftar:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(255,215,0,0.6);
}

/* =====================
   MODAL PROMO
===================== */
.modal-promo {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    z-index: 999;
}

.modal-content {
    max-width: 380px;
    margin: 10% auto;
    background: linear-gradient(180deg, #1b1b2b, #0b0b15);
    padding: 22px;
    border-radius: 20px;
    border: 1px solid rgba(255,215,0,0.3);
    text-align: center;
}

.modal-content img {
    width: 100%;
    border-radius: 14px;
}

.close-btn {
    color: gold;
    font-size: 24px;
    cursor: pointer;
    float: right;
}

/* =====================
   FOOTER
===================== */
.footer-inside {
    margin-top: 26px;
    text-align: center;
}

.logo-row img,
.second-row img {
    height: 26px;
    margin: 6px;
}

.copy-text {
    font-size: 12px;
    opacity: 0.7;
    margin-top: 10px;
}

/* =====================
   RESPONSIVE
===================== */
@media (max-width: 900px) {
    .split-layout {
        flex-direction: column;
    }

    .right-side {
        flex: none;
    }
}