/* =========================================================================
   NARA — MODERN 3D REDESIGN LAYER (style-v2.css)
   Lapisan penyempurnaan visual di atas style.css.
   Tidak mengubah struktur HTML, nama/urutan navigasi, atau logika JS —
   murni memperkaya tampilan: depth, glassmorphism, gradient, tipografi,
   dan micro-interaction yang ringan.
   ========================================================================= */

:root {
    /* --- Elevation scale (soft 3D, bukan neumorphism berat) --- */
    --e1: 0 1px 2px rgba(15, 27, 51, .04), 0 2px 6px -2px rgba(15, 27, 51, .06);
    --e2: 0 4px 10px -4px rgba(15, 27, 51, .10), 0 10px 24px -12px rgba(15, 27, 51, .14);
    --e3: 0 10px 24px -10px rgba(15, 27, 51, .18), 0 22px 44px -18px rgba(15, 27, 51, .20);
    --e4: 0 18px 40px -16px rgba(15, 27, 51, .26), 0 30px 60px -24px rgba(15, 27, 51, .24);
    --e-press: inset 0 1px 2px rgba(15, 27, 51, .12), inset 0 -1px 0 rgba(255, 255, 255, .5);

    /* --- Gradients bertema navigasi remaja: navy → biru → teal --- */
    --grad-brand: linear-gradient(135deg, var(--navy-2) 0%, var(--blue) 100%);
    --grad-brand-deep: linear-gradient(160deg, #0c1730 0%, var(--navy-2) 46%, var(--blue) 130%);
    --grad-accent: linear-gradient(135deg, var(--blue) 0%, var(--teal) 100%);
    --grad-sheen: linear-gradient(120deg, rgba(255, 255, 255, .55), rgba(255, 255, 255, 0) 40%);

    /* --- Glass --- */
    --glass-bg: rgba(255, 255, 255, .72);
    --glass-border: rgba(255, 255, 255, .55);
    --glass-blur: saturate(180%) blur(20px);

    --ease-spring: cubic-bezier(.22, 1.1, .36, 1);
    --ease-out: cubic-bezier(.16, 1, .3, 1);

    --radius-xl: 28px;
}

/* ---------------------------------------------------------------------
   0. GLOBAL — tipografi & permukaan dasar
   --------------------------------------------------------------------- */
body {
    background:
        radial-gradient(1100px 480px at 84% -8%, rgba(74, 159, 245, .10), transparent 60%),
        radial-gradient(900px 420px at -10% 8%, rgba(23, 163, 152, .08), transparent 55%),
        var(--bg);
}
h1, h2, h3, h4 { letter-spacing: -0.015em; }
::selection { background: var(--blue); color: #fff; }

.section-title {
    background: var(--grad-brand);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
}

/* ---------------------------------------------------------------------
   1. NAVBAR ATAS — glass lebih dalam + garis aksen gradient
   --------------------------------------------------------------------- */
.navbar {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid rgba(19, 34, 66, .06);
    box-shadow: var(--e2);
}
.navbar::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: -1px;
    height: 2px;
    background: var(--grad-accent);
    opacity: .55;
}
.navbar { position: sticky; }
.logo .mark {
    background: var(--grad-brand-deep);
    box-shadow: var(--e2), 0 0 0 1px rgba(255, 255, 255, .18) inset;
    position: relative;
    overflow: hidden;
}
.logo .mark::before {
    content: "";
    position: absolute; inset: 0;
    background: var(--grad-sheen);
    mix-blend-mode: overlay;
}

/* ---------------------------------------------------------------------
   2. SIDEBAR DESKTOP — rail modern dengan indikator aktif melayang
   --------------------------------------------------------------------- */
@media (min-width: 1024px) {
    .sidebar {
        background: var(--glass-bg);
        backdrop-filter: var(--glass-blur);
        -webkit-backdrop-filter: var(--glass-blur);
        border-right: 1px solid rgba(19, 34, 66, .06);
        box-shadow: var(--e2);
    }
    .sidebar .sidebar-nav-btn {
        border-radius: 16px;
        transition: background .25s var(--ease-spring), color .2s ease, transform .18s var(--ease-out), box-shadow .25s ease;
    }
    .sidebar .sidebar-nav-btn:hover {
        background: rgba(74, 159, 245, .08);
        transform: translateX(2px);
    }
    .sidebar .sidebar-nav-btn.active {
        background: var(--grad-brand);
        color: #fff !important;
        box-shadow: var(--e2), 0 0 0 1px rgba(255, 255, 255, .12) inset;
    }
    .sidebar .sidebar-nav-btn.active .icon svg {
        stroke: #fff !important;
        opacity: 1 !important;
    }
    .sidebar .sidebar-nav-btn.active .sidebar-label { color: #fff; }
}

/* ---------------------------------------------------------------------
   3. BOTTOM NAV MOBILE — kapsul glass melayang, depth pada item aktif
   --------------------------------------------------------------------- */
.bottom-nav {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-top: 1px solid rgba(19, 34, 66, .05);
    box-shadow: 0 -4px 16px -8px rgba(15, 27, 51, .10), var(--e3);
}
@media (min-width: 760px) {
    .bottom-nav {
        border: 1px solid rgba(19, 34, 66, .06);
        box-shadow: var(--e3);
    }
}
.bottom-nav-btn {
    transition: color .2s ease, background .3s var(--ease-spring), transform .18s var(--ease-spring), box-shadow .25s ease;
}
.bottom-nav-btn.active {
    background: linear-gradient(180deg, rgba(74, 159, 245, .16), rgba(74, 159, 245, .07));
    box-shadow: var(--e1), 0 0 0 1px rgba(74, 159, 245, .12) inset;
    transform: translateY(-2px);
}
.bottom-nav-btn[data-group="bantuan"] .icon {
    background: var(--grad-accent);
    box-shadow: var(--e2), 0 0 0 1px rgba(255, 255, 255, .25) inset;
}

/* ---------------------------------------------------------------------
   4. TOMBOL — soft 3D: highlight atas, shadow depth, press-in nyata
   --------------------------------------------------------------------- */
.btn {
    position: relative;
    box-shadow: var(--e2), inset 0 1px 0 rgba(255, 255, 255, .18);
    transition: transform .16s var(--ease-spring), box-shadow .2s var(--ease-out), background .2s ease, filter .2s ease;
}
.btn:hover { filter: brightness(1.03); transform: translateY(-1px); }
.btn:active {
    transform: translateY(1px) scale(.98);
    box-shadow: var(--e-press);
}
.btn-primary { background: var(--grad-brand); }
.btn-accent { background: var(--grad-accent); }
.btn-outline { box-shadow: var(--e1); background: rgba(255, 255, 255, .9); }
.btn-outline:hover { box-shadow: var(--e2); }
.btn-whatsapp { box-shadow: var(--e2), inset 0 1px 0 rgba(255, 255, 255, .2); }

/* ---------------------------------------------------------------------
   5. KARTU — depth berlapis, sheen tipis, hover terangkat
   --------------------------------------------------------------------- */
.card {
    border: 1px solid rgba(19, 34, 66, .06);
    box-shadow: var(--e2);
    position: relative;
    isolation: isolate;
}
.card::before {
    content: "";
    position: absolute; inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(160deg, rgba(255, 255, 255, .9), rgba(255, 255, 255, 0) 32%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: .8;
    z-index: -1;
}
.card:hover {
    box-shadow: var(--e3);
    transform: translateY(-3px);
}
.progress-card {
    background: linear-gradient(165deg, #fff 0%, var(--blue-softer) 130%);
}

.edu-card {
    border: 1px solid rgba(19, 34, 66, .06);
    box-shadow: var(--e2);
    transition: transform .22s var(--ease-spring), box-shadow .25s var(--ease-out);
}
.edu-card:hover {
    box-shadow: var(--e3);
    transform: translateY(-4px) scale(1.01);
}
.edu-card:active {
    transform: translateY(-1px) scale(.99);
    box-shadow: var(--e1);
}
.edu-card .ic-wrap {
    box-shadow: var(--e1), 0 0 0 1px rgba(255, 255, 255, .3) inset;
}

.game-mission-card {
    box-shadow: var(--e2);
    transition: transform .22s var(--ease-spring), box-shadow .25s var(--ease-out);
}
.game-mission-card:hover {
    box-shadow: var(--e3);
    transform: translateY(-4px);
}
.game-mission-card .icon-box {
    box-shadow: var(--e1), 0 0 0 1px rgba(255, 255, 255, .4) inset;
}
.game-mission-card .level-badge {
    box-shadow: var(--e1);
}

.dk-card, .dk-stat-card {
    box-shadow: var(--e2);
    border: 1px solid rgba(19, 34, 66, .06);
    transition: transform .2s var(--ease-spring), box-shadow .2s ease;
}
.dk-stat-card:hover, .dk-card:hover {
    box-shadow: var(--e3);
    transform: translateY(-3px);
}

.about-card, .mentor-card {
    box-shadow: var(--e2);
    border: 1px solid rgba(19, 34, 66, .06);
}
.mentor-card {
    background: linear-gradient(160deg, #fff, var(--blue-softer) 140%);
}
.team-avatar {
    box-shadow: var(--e1), 0 0 0 1px rgba(255, 255, 255, .3) inset;
}
.contact-card {
    border: 1px solid rgba(19, 34, 66, .06);
    box-shadow: var(--e1);
    transition: transform .2s var(--ease-spring), box-shadow .2s ease, border-color .2s ease;
}
.contact-card:hover {
    box-shadow: var(--e2);
    transform: translateY(-2px);
    border-color: rgba(74, 159, 245, .35);
}
.contact-card-ic {
    box-shadow: var(--e1);
}

/* ---------------------------------------------------------------------
   6. BANNER / CAROUSEL — depth lebih kaya, tepi lebih lembut
   --------------------------------------------------------------------- */
.nara-carousel-slide {
    box-shadow: var(--e3);
}
.nara-carousel { border-radius: var(--radius-xl); }

/* ---------------------------------------------------------------------
   7. MODAL & FORM — rounded lebih lembut, fokus bercahaya, aman keyboard
   --------------------------------------------------------------------- */
.modal-box, .modal-box-lg {
    box-shadow: var(--e4);
    border: 1px solid rgba(19, 34, 66, .06);
    border-radius: var(--radius-xl);
}
.form-field input,
.form-field select,
.form-field textarea {
    transition: border-color .2s ease, box-shadow .2s ease, transform .1s ease;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    border-color: var(--blue) !important;
    box-shadow: 0 0 0 4px rgba(74, 159, 245, .16);
    outline: none;
}
/* Cegah keyboard Android menutupi input aktif di dalam modal */
.modal-overlay {
    align-items: flex-end;
}
@media (min-width: 640px) {
    .modal-overlay { align-items: center; }
}
.modal-box, .modal-box-lg {
    max-height: min(88dvh, 88vh);
    overflow-y: auto;
    scroll-padding-bottom: 24px;
}

/* ---------------------------------------------------------------------
   8. TABEL / KONTEN LEBAR — scroll horizontal hanya pada area itu
   --------------------------------------------------------------------- */
table { border-collapse: collapse; width: 100%; }
.table-wrap, .dk-bar-chart, .counselor-list {
    -webkit-overflow-scrolling: touch;
}

/* ---------------------------------------------------------------------
   9. MICRO-INTERACTION — reveal halus saat elemen masuk viewport
   --------------------------------------------------------------------- */
[data-reveal] {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity .55s var(--ease-out), transform .55s var(--ease-out);
}
[data-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
    [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ---------------------------------------------------------------------
   10. RESPONSIVE FINE-TUNE — 320 / 360 / 375 / 390 / 412 / 430
   --------------------------------------------------------------------- */
@media (max-width: 359px) {
    .wrap { padding-left: 14px; padding-right: 14px; }
    .card { padding: 16px; }
    .section-title { font-size: clamp(1.15rem, 6vw, 1.4rem); }
    .btn { padding: 10px 16px; font-size: .85rem; }
}
@media (min-width: 360px) and (max-width: 430px) {
    .wrap { padding-left: 16px; padding-right: 16px; }
}
@media (min-width: 640px) and (max-width: 1023px) {
    .edu-grid, .uji-grid { gap: 16px; }
}

/* Pastikan tidak ada overflow horizontal tak sengaja pada layar sempit */
html, body { overflow-x: hidden; max-width: 100%; }