/* ============================================================
   FILE: assets/css/style.css
   Deskripsi: Gaya utama website Literasi Anak SD
   Tema: Colorful-Soft, Animasi Smooth, Nuansa Indonesia
   Update: Background diperhalus, hover smooth, border+inner shadow pada card
   ============================================================ */

/* --- Import Font --- */
@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800;900&family=Fredoka+One&display=swap');

/* ============================================================
   VARIABEL WARNA & TOKEN DESAIN
   ============================================================ */
:root {
    /* Warna utama */
    --merah:        #E63946;
    --putih:        #FFFFFF;
    --kuning:       #FFD60A;
    --hijau:        #2DC653;
    --biru:         #4361EE;
    --ungu:         #7B2FBE;
    --oranye:       #FF6B35;
    --merah-muda:   #FF4D9E;
    --tosca:        #00B4D8;
    --hijau-tua:    #118AB2;

    /* Background baru — lebih lembut/gelap */
    --bg-utama:     #1E1E2E;          /* dark navy - body base */
    --bg-sambutan:  #16213E;          /* halaman landing */
    --bg-dashboard: #1A1A2E;          /* dashboard */
    --bg-card:      #252540;          /* card surface */
    --bg-card-alt:  #2A2A4A;          /* card hover / alt */
    --bg-input:     #1E1E35;          /* input field */
    --bg-overlay:   rgba(10,10,30,0.75);

    /* Teks */
    --teks-gelap:   #E8E8FF;          /* teks utama di bg gelap */
    --teks-sedang:  #A0A0C8;          /* teks sekunder */
    --teks-muted:   #6B6B99;

    /* Border & shadow */
    --border-card:  rgba(255,255,255,0.07);
    --border-hover: rgba(255,255,255,0.18);
    --inner-shadow: inset 0 1px 0 rgba(255,255,255,0.08), inset 0 -1px 0 rgba(0,0,0,0.15);
    --bayangan:     0 8px 32px rgba(0,0,0,0.35);
    --bayangan-sm:  0 4px 16px rgba(0,0,0,0.25);
    --bayangan-glow:0 0 24px rgba(67,97,238,0.25);

    /* Radius */
    --radius-besar: 20px;
    --radius-kecil: 12px;

    /* Font */
    --font-display: 'Fredoka One', cursive;
    --font-body:    'Nunito', sans-serif;

    /* Transisi smooth global */
    --trans-fast:   all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --trans-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --trans-bounce: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    color: var(--teks-gelap);
    background: var(--bg-utama);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ============================================================
   ANIMASI KEYFRAMES
   ============================================================ */

@keyframes melayang {
    0%, 100% { transform: translateY(0px); }
    50%       { transform: translateY(-10px); }
}

@keyframes putar {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

@keyframes munculBawah {
    from { opacity: 0; transform: translateY(32px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes munculKiri {
    from { opacity: 0; transform: translateX(-32px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes munculBesar {
    from { opacity: 0; transform: scale(0.7); }
    to   { opacity: 1; transform: scale(1); }
}

@keyframes denyut {
    0%, 100% { transform: scale(1); }
    50%       { transform: scale(1.06); }
}

@keyframes goyang {
    0%, 100% { transform: rotate(0deg); }
    25%       { transform: rotate(-6deg); }
    75%       { transform: rotate(6deg); }
}

@keyframes kilat {
    0%   { box-shadow: 0 0 0 0 rgba(45,198,83,0.6); }
    70%  { box-shadow: 0 0 0 18px rgba(45,198,83,0); }
    100% { box-shadow: 0 0 0 0 rgba(45,198,83,0); }
}

@keyframes kilatMerah {
    0%   { box-shadow: 0 0 0 0 rgba(230,57,70,0.6); }
    70%  { box-shadow: 0 0 0 18px rgba(230,57,70,0); }
    100% { box-shadow: 0 0 0 0 rgba(230,57,70,0); }
}

@keyframes gelembung {
    0%, 100% { transform: scale(1); }
    50%       { transform: scale(1.12); }
}

@keyframes slideModal {
    from { transform: scale(0.75) translateY(-24px); opacity: 0; }
    to   { transform: scale(1) translateY(0); opacity: 1; }
}

@keyframes awan {
    0%   { transform: translateX(-120px); }
    100% { transform: translateX(calc(100vw + 120px)); }
}

@keyframes confetti {
    0%   { transform: translateY(-20px) rotate(0deg); opacity: 1; }
    100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}

@keyframes isiProgress {
    from { width: 0; }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); animation-timing-function: cubic-bezier(0.8,0,1,1); }
    50%       { transform: translateY(-18px); animation-timing-function: cubic-bezier(0,0,0.2,1); }
}

@keyframes shimmer {
    0%   { background-position: -200% center; }
    100% { background-position: 200% center; }
}

@keyframes glowPulse {
    0%, 100% { box-shadow: 0 0 12px rgba(67,97,238,0.3); }
    50%       { box-shadow: 0 0 28px rgba(67,97,238,0.6); }
}

/* ============================================================
   HALAMAN SAMBUTAN (index.php)
   ============================================================ */

.halaman-sambutan {
    min-height: 100vh;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(67,97,238,0.25) 0%, transparent 55%),
        radial-gradient(ellipse at 80% 80%, rgba(123,47,190,0.2) 0%, transparent 55%),
        radial-gradient(ellipse at 50% 50%, rgba(230,57,70,0.08) 0%, transparent 60%),
        linear-gradient(160deg, #0D0D1F 0%, #16213E 50%, #1A1035 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 20px;
}

/* Dekorasi motif di background */
.bg-dekorasi {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.bg-dekorasi .motif {
    position: absolute;
    border-radius: 50%;
    opacity: 0.05;
    filter: blur(2px);
}

.motif-1 { width: 320px; height: 320px; background: var(--kuning); top: -80px; left: -80px; animation: melayang 7s ease-in-out infinite; }
.motif-2 { width: 220px; height: 220px; background: var(--merah); top: 15%; right: -60px; animation: melayang 6s ease-in-out infinite 1.2s; }
.motif-3 { width: 420px; height: 420px; background: var(--biru); bottom: -120px; left: 28%; animation: melayang 8s ease-in-out infinite 0.6s; }
.motif-4 { width: 160px; height: 160px; background: var(--ungu); bottom: 8%; left: 8%; animation: melayang 5s ease-in-out infinite 2.2s; }

/* Awan bergerak */
.awan {
    position: absolute;
    background: rgba(255,255,255,0.06);
    border-radius: 50px;
    animation: awan linear infinite;
}
.awan::before, .awan::after {
    content: '';
    position: absolute;
    background: rgba(255,255,255,0.06);
    border-radius: 50%;
}
.awan-1 { width: 150px; height: 38px; top: 12%; animation-duration: 28s; }
.awan-1::before { width: 58px; height: 58px; top: -28px; left: 20px; }
.awan-1::after  { width: 38px; height: 38px; top: -18px; left: 70px; }
.awan-2 { width: 100px; height: 28px; top: 52%; animation-duration: 38s; animation-delay: -12s; }
.awan-2::before { width: 44px; height: 44px; top: -20px; left: 14px; }
.awan-2::after  { width: 28px; height: 28px; top: -14px; left: 50px; }

/* Konten sambutan */
.konten-sambutan {
    text-align: center;
    z-index: 10;
    animation: munculBawah 0.9s cubic-bezier(0.4,0,0.2,1);
}

.maskot-wrapper {
    margin-bottom: 24px;
    animation: melayang 4s ease-in-out infinite;
}

.maskot-ikon {
    font-size: 96px;
    filter: drop-shadow(0 8px 24px rgba(67,97,238,0.5));
    display: inline-block;
}

.judul-web {
    font-family: var(--font-display);
    font-size: clamp(34px, 7.5vw, 68px);
    color: var(--putih);
    text-shadow: 0 4px 20px rgba(0,0,0,0.4);
    line-height: 1.1;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.judul-web span {
    color: var(--kuning);
    display: block;
    text-shadow: 0 0 30px rgba(255,214,10,0.4);
}

.subjudul-web {
    font-size: clamp(14px, 2.8vw, 19px);
    color: rgba(255,255,255,0.7);
    margin-bottom: 40px;
    font-weight: 600;
}

.bintang-deko {
    position: absolute;
    font-size: 22px;
    animation: melayang var(--dur, 3s) ease-in-out infinite var(--delay, 0s);
    opacity: 0.45;
    filter: drop-shadow(0 2px 6px rgba(255,214,10,0.4));
}

/* ============================================================
   TOMBOL UTAMA
   ============================================================ */

.btn-utama {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 17px 46px;
    font-family: var(--font-display);
    font-size: 21px;
    color: #1A1A2E;
    background: linear-gradient(135deg, #FFD60A 0%, #FF6B35 100%);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    box-shadow:
        0 8px 24px rgba(255,107,53,0.4),
        inset 0 1px 0 rgba(255,255,255,0.35);
    animation: denyut 2.5s ease-in-out infinite;
    transition: var(--trans-smooth);
    text-decoration: none;
    letter-spacing: 0.3px;
    position: relative;
    overflow: hidden;
}

.btn-utama::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 60%);
    border-radius: 50px;
    pointer-events: none;
}

.btn-utama:hover {
    transform: translateY(-4px) scale(1.04);
    box-shadow:
        0 14px 36px rgba(255,107,53,0.55),
        inset 0 1px 0 rgba(255,255,255,0.35);
    animation: none;
}

.btn-utama:active { transform: scale(0.97); }

/* Tombol sekunder */
.btn-sekunder {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 30px;
    font-family: var(--font-display);
    font-size: 17px;
    color: var(--putih);
    background: rgba(67,97,238,0.2);
    border: 1.5px solid rgba(67,97,238,0.5);
    border-radius: 50px;
    cursor: pointer;
    box-shadow:
        0 4px 14px rgba(67,97,238,0.2),
        var(--inner-shadow);
    transition: var(--trans-smooth);
    text-decoration: none;
    backdrop-filter: blur(6px);
}

.btn-sekunder:hover {
    background: rgba(67,97,238,0.4);
    border-color: rgba(67,97,238,0.8);
    transform: translateY(-3px);
    box-shadow:
        0 10px 28px rgba(67,97,238,0.35),
        var(--inner-shadow);
}

/* Tombol kelas */
.btn-kelas {
    padding: 12px 24px;
    font-family: var(--font-display);
    font-size: 18px;
    color: var(--teks-sedang);
    background: rgba(255,255,255,0.05);
    border: 1.5px solid rgba(255,255,255,0.1);
    border-radius: 14px;
    cursor: pointer;
    transition: var(--trans-smooth);
    flex: 1;
    min-width: 70px;
    box-shadow: var(--inner-shadow);
}

.btn-kelas:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(67,97,238,0.5);
    color: var(--putih);
    transform: translateY(-2px);
}

.btn-kelas.aktif {
    background: linear-gradient(135deg, var(--biru), var(--ungu));
    color: var(--putih);
    border-color: transparent;
    box-shadow:
        0 6px 20px rgba(67,97,238,0.45),
        inset 0 1px 0 rgba(255,255,255,0.2);
    animation: gelembung 0.3s ease;
}

/* ============================================================
   MODAL LOGIN
   ============================================================ */

.overlay-modal {
    position: fixed;
    inset: 0;
    background: var(--bg-overlay);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s cubic-bezier(0.4,0,0.2,1);
}

.overlay-modal.tampil {
    opacity: 1;
    pointer-events: all;
}

.kotak-modal {
    background: linear-gradient(160deg, #252545 0%, #1E1E38 100%);
    border-radius: var(--radius-besar);
    padding: 40px 36px;
    max-width: 440px;
    width: 100%;
    position: relative;
    animation: slideModal 0.45s cubic-bezier(0.34,1.56,0.64,1);
    border: 1.5px solid rgba(255,255,255,0.1);
    border-top: 5px solid var(--kuning);
    box-shadow:
        0 24px 64px rgba(0,0,0,0.5),
        var(--inner-shadow),
        0 0 0 1px rgba(255,255,255,0.04);
}

.modal-judul {
    font-family: var(--font-display);
    font-size: 28px;
    color: var(--biru);
    text-align: center;
    margin-bottom: 8px;
    text-shadow: 0 0 20px rgba(67,97,238,0.3);
}

.modal-sub {
    text-align: center;
    color: var(--teks-sedang);
    margin-bottom: 28px;
    font-size: 15px;
}

.label-form {
    display: block;
    font-weight: 700;
    font-size: 14px;
    color: var(--teks-sedang);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.input-nama {
    width: 100%;
    padding: 14px 18px;
    font-family: var(--font-body);
    font-size: 16px;
    border: 1.5px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-kecil);
    outline: none;
    transition: var(--trans-smooth);
    background: rgba(255,255,255,0.05);
    color: var(--putih);
    margin-bottom: 20px;
    box-shadow: var(--inner-shadow);
}

.input-nama::placeholder { color: var(--teks-muted); }

.input-nama:focus {
    border-color: rgba(67,97,238,0.7);
    box-shadow:
        0 0 0 3px rgba(67,97,238,0.18),
        var(--inner-shadow);
    background: rgba(67,97,238,0.08);
}

.grup-kelas {
    display: flex;
    gap: 10px;
    margin-bottom: 28px;
}

.pesan-error {
    background: rgba(230,57,70,0.12);
    border: 1.5px solid rgba(230,57,70,0.5);
    color: #FF8A94;
    border-radius: var(--radius-kecil);
    padding: 12px 16px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 16px;
    display: none;
    animation: munculBawah 0.3s ease;
}

.pesan-error.tampil { display: block; }

.btn-tutup-modal {
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--teks-sedang);
    transition: var(--trans-smooth);
}

.btn-tutup-modal:hover {
    background: rgba(230,57,70,0.2);
    border-color: rgba(230,57,70,0.4);
    color: #FF8A94;
    transform: rotate(90deg);
}

/* ============================================================
   HALAMAN DASHBOARD
   ============================================================ */

.halaman-dashboard {
    min-height: 100vh;
    background:
        radial-gradient(ellipse at 10% 0%, rgba(67,97,238,0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 90% 100%, rgba(123,47,190,0.1) 0%, transparent 50%),
        var(--bg-dashboard);
}

/* Header dashboard */
.header-dashboard {
    background: rgba(20,20,40,0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 14px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255,255,255,0.07);
    box-shadow: 0 4px 24px rgba(0,0,0,0.3);
    position: sticky;
    top: 0;
    z-index: 50;
}

.logo-header {
    font-family: var(--font-display);
    font-size: 22px;
    color: var(--putih);
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    transition: var(--trans-fast);
}

.logo-header:hover { opacity: 0.85; }
.logo-header .ikon { font-size: 28px; }

.info-user {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatar-user {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--kuning), var(--oranye));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-family: var(--font-display);
    color: #1A1A2E;
    box-shadow:
        0 4px 12px rgba(255,214,10,0.3),
        0 0 0 2px rgba(255,214,10,0.2);
    animation: melayang 5s ease-in-out infinite;
}

.nama-user-header { color: var(--putih); font-weight: 700; font-size: 15px; }
.kelas-user-header { color: var(--teks-sedang); font-size: 12px; }

.btn-logout {
    background: rgba(255,255,255,0.07);
    border: 1.5px solid rgba(255,255,255,0.12);
    color: var(--teks-sedang);
    padding: 8px 16px;
    border-radius: 20px;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 13px;
    cursor: pointer;
    transition: var(--trans-smooth);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: var(--inner-shadow);
}

.btn-logout:hover {
    background: rgba(230,57,70,0.15);
    border-color: rgba(230,57,70,0.4);
    color: #FF8A94;
    transform: translateY(-1px);
}

/* Konten dashboard */
.konten-dashboard {
    max-width: 1100px;
    margin: 0 auto;
    padding: 32px 20px 60px;
}

/* Banner selamat datang */
.banner-selamat-datang {
    background: linear-gradient(135deg, rgba(67,97,238,0.8) 0%, rgba(123,47,190,0.8) 100%);
    border-radius: var(--radius-besar);
    padding: 28px 32px;
    margin-bottom: 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border: 1.5px solid rgba(255,255,255,0.1);
    box-shadow:
        0 12px 40px rgba(67,97,238,0.25),
        var(--inner-shadow);
    animation: munculBawah 0.6s cubic-bezier(0.4,0,0.2,1);
    overflow: hidden;
    position: relative;
    backdrop-filter: blur(8px);
}

.banner-selamat-datang::before {
    content: '';
    position: absolute;
    right: -60px; top: -60px;
    width: 220px; height: 220px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
}

.banner-selamat-datang::after {
    content: '';
    position: absolute;
    left: -40px; bottom: -40px;
    width: 150px; height: 150px;
    background: rgba(255,255,255,0.04);
    border-radius: 50%;
}

.teks-banner h2 {
    font-family: var(--font-display);
    font-size: clamp(18px, 3.5vw, 30px);
    color: var(--putih);
    margin-bottom: 6px;
}

.teks-banner p { color: rgba(255,255,255,0.75); font-size: 14px; }

.badge-kelas {
    background: var(--kuning);
    color: #1A1A2E;
    font-family: var(--font-display);
    font-size: 17px;
    padding: 10px 22px;
    border-radius: 50px;
    white-space: nowrap;
    box-shadow:
        0 6px 18px rgba(255,214,10,0.35),
        inset 0 1px 0 rgba(255,255,255,0.4);
    animation: denyut 3.5s ease-in-out infinite;
    position: relative;
    z-index: 1;
}

/* Statistik mini */
.grid-statistik {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.kartu-statistik {
    background: var(--bg-card);
    border-radius: var(--radius-besar);
    padding: 22px 16px;
    text-align: center;
    border: 1.5px solid var(--border-card);
    border-bottom: 3px solid var(--warna-aksen, var(--biru));
    box-shadow:
        var(--bayangan-sm),
        var(--inner-shadow);
    animation: munculBawah 0.6s cubic-bezier(0.4,0,0.2,1) var(--delay, 0s) both;
    transition: var(--trans-smooth);
    cursor: default;
}

.kartu-statistik:hover {
    transform: translateY(-5px) scale(1.02);
    border-color: var(--warna-aksen, var(--biru));
    box-shadow:
        0 12px 32px rgba(0,0,0,0.35),
        0 0 20px rgba(67,97,238,0.15),
        var(--inner-shadow);
}

.angka-statistik {
    font-family: var(--font-display);
    font-size: 40px;
    color: var(--warna-aksen, var(--biru));
    line-height: 1;
    margin-bottom: 4px;
    text-shadow: 0 0 16px rgba(67,97,238,0.3);
}

.label-statistik { font-size: 12px; color: var(--teks-sedang); font-weight: 700; letter-spacing: 0.3px; }

/* Judul seksi */
.judul-seksi {
    font-family: var(--font-display);
    font-size: 24px;
    color: var(--teks-gelap);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Grid menu utama */
.grid-menu {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 22px;
    margin-bottom: 36px;
}

.kartu-menu {
    background: var(--bg-card);
    border-radius: var(--radius-besar);
    padding: 32px 24px;
    text-align: center;
    border: 1.5px solid var(--border-card);
    box-shadow:
        var(--bayangan-sm),
        var(--inner-shadow);
    cursor: pointer;
    transition: var(--trans-smooth);
    animation: munculBesar 0.65s cubic-bezier(0.34,1.56,0.64,1) var(--delay, 0s) both;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    display: block;
}

/* Lapisan gradient hover */
.kartu-menu::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-menu, linear-gradient(135deg, var(--biru), var(--ungu)));
    opacity: 0;
    transition: opacity 0.4s cubic-bezier(0.4,0,0.2,1);
    border-radius: calc(var(--radius-besar) - 2px);
}

/* Garis cahaya atas */
.kartu-menu::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
    border-radius: var(--radius-besar) var(--radius-besar) 0 0;
    transition: opacity 0.4s ease;
    opacity: 0.5;
}

.kartu-menu:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: rgba(255,255,255,0.2);
    box-shadow:
        0 20px 52px rgba(0,0,0,0.4),
        0 0 30px rgba(67,97,238,0.2),
        var(--inner-shadow);
}

.kartu-menu:hover::before { opacity: 1; }

.kartu-menu:hover .ikon-menu,
.kartu-menu:hover .nama-menu,
.kartu-menu:hover .deskripsi-menu {
    color: var(--putih) !important;
    position: relative;
    z-index: 1;
}

.ikon-menu {
    font-size: 68px;
    margin-bottom: 16px;
    display: block;
    animation: melayang 4.5s ease-in-out infinite var(--delay-float, 0s);
    position: relative;
    z-index: 1;
    transition: var(--trans-smooth);
    filter: drop-shadow(0 4px 12px rgba(0,0,0,0.3));
}

.nama-menu {
    font-family: var(--font-display);
    font-size: 25px;
    color: var(--teks-gelap);
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
    transition: var(--trans-smooth);
}

.deskripsi-menu {
    font-size: 13px;
    color: var(--teks-sedang);
    line-height: 1.6;
    position: relative;
    z-index: 1;
    transition: var(--trans-smooth);
}

.pita-menu {
    position: absolute;
    top: 18px; right: -26px;
    background: var(--warna-pita, var(--merah));
    color: var(--putih);
    font-size: 11px;
    font-weight: 800;
    padding: 4px 36px;
    transform: rotate(35deg);
    letter-spacing: 0.8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
    z-index: 2;
}

/* ============================================================
   HALAMAN MODUL (membaca & game)
   ============================================================ */

.halaman-modul {
    min-height: 100vh;
    background:
        radial-gradient(ellipse at 0% 0%, rgba(67,97,238,0.1) 0%, transparent 50%),
        var(--bg-dashboard);
}

.header-modul {
    background: rgba(20,20,40,0.85) !important;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 14px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.07);
    box-shadow: 0 4px 24px rgba(0,0,0,0.3);
}

/* Override inline gradient pada header-modul */
.halaman-modul .header-modul {
    background: rgba(20,20,40,0.9) !important;
}

.btn-kembali {
    background: rgba(255,255,255,0.07);
    border: 1.5px solid rgba(255,255,255,0.12);
    color: var(--teks-gelap);
    padding: 10px 18px;
    border-radius: 20px;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--trans-smooth);
    box-shadow: var(--inner-shadow);
}

.btn-kembali:hover {
    background: rgba(255,255,255,0.14);
    border-color: rgba(255,255,255,0.25);
    transform: translateX(-3px);
}

.judul-modul-header {
    font-family: var(--font-display);
    font-size: 21px;
    color: var(--putih);
    flex: 1;
}

.konten-modul {
    max-width: 900px;
    margin: 0 auto;
    padding: 32px 20px 60px;
}

/* Grid sub-modul */
.grid-submodul {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
    margin-bottom: 36px;
}

.kartu-submodul {
    background: var(--bg-card);
    border-radius: var(--radius-besar);
    padding: 28px 20px;
    text-align: center;
    border: 1.5px solid var(--border-card);
    box-shadow:
        var(--bayangan-sm),
        var(--inner-shadow);
    cursor: pointer;
    transition: var(--trans-smooth);
    text-decoration: none;
    display: block;
    animation: munculBawah 0.55s cubic-bezier(0.4,0,0.2,1) var(--delay, 0s) both;
    position: relative;
    overflow: hidden;
}

.kartu-submodul::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
}

.kartu-submodul:hover {
    transform: translateY(-7px) scale(1.015);
    border-color: var(--warna-border, rgba(67,97,238,0.6));
    box-shadow:
        0 16px 44px rgba(0,0,0,0.35),
        0 0 20px rgba(67,97,238,0.12),
        var(--inner-shadow);
    background: var(--bg-card-alt);
}

.ikon-submodul { font-size: 52px; margin-bottom: 12px; display: block; filter: drop-shadow(0 4px 10px rgba(0,0,0,0.3)); }
.nama-submodul { font-family: var(--font-display); font-size: 21px; color: var(--teks-gelap); margin-bottom: 8px; }
.desc-submodul { font-size: 13px; color: var(--teks-sedang); line-height: 1.55; }

/* ============================================================
   KONTEN MEMBACA
   ============================================================ */

.panel-materi {
    background: var(--bg-card);
    border-radius: var(--radius-besar);
    padding: 36px;
    border: 1.5px solid var(--border-card);
    box-shadow:
        var(--bayangan),
        var(--inner-shadow);
    animation: munculBawah 0.5s cubic-bezier(0.4,0,0.2,1);
    margin-bottom: 24px;
}

.judul-materi {
    font-family: var(--font-display);
    font-size: 26px;
    color: #7B9EFF;
    margin-bottom: 20px;
    text-align: center;
    padding-bottom: 16px;
    border-bottom: 2px dashed rgba(255,214,10,0.4);
}

.konten-materi {
    font-size: 17px;
    line-height: 2;
    color: var(--teks-gelap);
}

.konten-materi p { margin-bottom: 16px; }

.huruf-besar {
    font-family: var(--font-display);
    font-size: 46px;
    color: var(--merah);
    float: left;
    line-height: 1;
    margin: 0 8px 4px 0;
    text-shadow: 0 0 16px rgba(230,57,70,0.4);
}

.kata-highlight {
    background: linear-gradient(135deg, rgba(255,214,10,0.25), rgba(255,229,92,0.2));
    border: 1px solid rgba(255,214,10,0.4);
    padding: 2px 8px;
    border-radius: 6px;
    font-weight: 700;
    color: #FFE55C;
    display: inline;
}

.nav-halaman-baca {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.progress-baca {
    flex: 1;
    height: 10px;
    background: rgba(255,255,255,0.08);
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.06);
}

.progress-baca-isi {
    height: 100%;
    background: linear-gradient(90deg, var(--hijau), var(--tosca));
    border-radius: 6px;
    animation: isiProgress 0.5s ease-out;
    transition: width 0.45s cubic-bezier(0.4,0,0.2,1);
    box-shadow: 0 0 10px rgba(45,198,83,0.4);
}

/* ============================================================
   GAME - TEBAK BUAH/BARANG
   ============================================================ */

.area-game {
    background: var(--bg-card);
    border-radius: var(--radius-besar);
    padding: 36px;
    border: 1.5px solid var(--border-card);
    box-shadow:
        var(--bayangan),
        var(--inner-shadow);
    animation: munculBawah 0.5s cubic-bezier(0.4,0,0.2,1);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.area-game::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.12), transparent);
}

.header-game {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
}

.skor-game { font-family: var(--font-display); font-size: 20px; color: #7B9EFF; }
.nomor-soal { font-size: 13px; color: var(--teks-sedang); font-weight: 700; }

.pertanyaan-game {
    font-family: var(--font-display);
    font-size: clamp(17px, 3.5vw, 24px);
    color: var(--teks-gelap);
    margin-bottom: 24px;
    line-height: 1.4;
}

.gambar-soal {
    font-size: 96px;
    margin-bottom: 24px;
    display: block;
    animation: melayang 3.5s ease-in-out infinite;
    filter: drop-shadow(0 8px 20px rgba(0,0,0,0.4));
}

.grid-pilihan {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 13px;
    max-width: 500px;
    margin: 0 auto;
}

.btn-pilihan {
    padding: 16px 12px;
    font-family: var(--font-display);
    font-size: 19px;
    background: rgba(255,255,255,0.05);
    border: 1.5px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-kecil);
    color: var(--teks-gelap);
    cursor: pointer;
    transition: var(--trans-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: var(--inner-shadow);
}

.btn-pilihan:hover:not(:disabled) {
    background: rgba(67,97,238,0.15);
    border-color: rgba(67,97,238,0.5);
    transform: translateY(-3px) scale(1.02);
    box-shadow:
        0 8px 24px rgba(67,97,238,0.2),
        var(--inner-shadow);
    color: var(--putih);
}

.btn-pilihan.benar {
    background: rgba(45,198,83,0.15);
    border-color: var(--hijau);
    color: #6EE89C;
    animation: kilat 0.6s ease;
    box-shadow: 0 0 20px rgba(45,198,83,0.25), var(--inner-shadow);
}

.btn-pilihan.salah {
    background: rgba(230,57,70,0.15);
    border-color: var(--merah);
    color: #FF8A94;
    animation: kilatMerah 0.6s ease;
    box-shadow: 0 0 20px rgba(230,57,70,0.25), var(--inner-shadow);
}

.btn-pilihan:disabled { cursor: not-allowed; opacity: 0.7; }

/* Overlay hasil jawaban */
.overlay-hasil {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: calc(var(--radius-besar) - 2px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s cubic-bezier(0.4,0,0.2,1);
    z-index: 20;
    backdrop-filter: blur(4px);
}

.overlay-hasil.benar {
    background: linear-gradient(135deg, rgba(45,198,83,0.88), rgba(0,180,216,0.88));
    opacity: 1;
    pointer-events: all;
}

.overlay-hasil.salah {
    background: linear-gradient(135deg, rgba(230,57,70,0.88), rgba(255,107,53,0.88));
    opacity: 1;
    pointer-events: all;
}

.teks-hasil {
    font-family: var(--font-display);
    font-size: clamp(34px, 7vw, 60px);
    color: var(--putih);
    margin-bottom: 8px;
    animation: munculBesar 0.4s cubic-bezier(0.34,1.56,0.64,1);
    text-shadow: 0 4px 16px rgba(0,0,0,0.3);
}

.sub-hasil {
    font-size: 17px;
    color: rgba(255,255,255,0.92);
    margin-bottom: 24px;
    font-weight: 700;
}

/* Confetti */
.confetti-container {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 200;
    overflow: hidden;
}

.confetti-keping {
    position: absolute;
    width: 12px;
    height: 12px;
    animation: confetti linear forwards;
}

/* ============================================================
   GAME MENGINGAT
   ============================================================ */

.papan-kartu {
    display: grid;
    gap: 10px;
    margin: 20px auto;
    max-width: 480px;
}

.papan-kartu.level-4 { grid-template-columns: repeat(4, 1fr); }
.papan-kartu.level-3 { grid-template-columns: repeat(3, 1fr); }

.kartu-memori {
    aspect-ratio: 1;
    cursor: pointer;
    perspective: 700px;
    user-select: none;
}

.kartu-memori-dalam {
    width: 100%;
    height: 100%;
    transition: transform 0.55s cubic-bezier(0.4,0,0.2,1);
    transform-style: preserve-3d;
    position: relative;
}

.kartu-memori.terbuka .kartu-memori-dalam,
.kartu-memori.cocok   .kartu-memori-dalam {
    transform: rotateY(180deg);
}

.kartu-depan, .kartu-belakang {
    position: absolute;
    inset: 0;
    backface-visibility: hidden;
    border-radius: var(--radius-kecil);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(22px, 5vw, 38px);
}

.kartu-depan {
    background: linear-gradient(135deg, rgba(67,97,238,0.6), rgba(123,47,190,0.6));
    color: rgba(255,255,255,0.4);
    border: 1.5px solid rgba(255,255,255,0.1);
    box-shadow: var(--inner-shadow);
    transition: var(--trans-smooth);
}

.kartu-memori:not(.terbuka):not(.cocok) .kartu-depan:hover {
    background: linear-gradient(135deg, rgba(67,97,238,0.8), rgba(123,47,190,0.8));
    border-color: rgba(255,255,255,0.2);
    transform: scale(1.04);
    box-shadow: 0 6px 20px rgba(67,97,238,0.3), var(--inner-shadow);
}

.kartu-belakang {
    background: linear-gradient(135deg, rgba(255,248,231,0.12), rgba(255,229,92,0.08));
    border: 1.5px solid rgba(255,214,10,0.25);
    transform: rotateY(180deg);
    box-shadow: var(--inner-shadow);
}

.kartu-memori.cocok .kartu-depan,
.kartu-memori.cocok .kartu-belakang {
    border-color: rgba(45,198,83,0.6);
    box-shadow:
        0 0 0 2px rgba(45,198,83,0.4),
        0 6px 18px rgba(45,198,83,0.25),
        var(--inner-shadow);
}

/* ============================================================
   HASIL AKHIR GAME
   ============================================================ */

.panel-hasil-akhir {
    background: var(--bg-card);
    border-radius: var(--radius-besar);
    padding: 48px 36px;
    text-align: center;
    border: 1.5px solid var(--border-card);
    box-shadow:
        var(--bayangan),
        var(--inner-shadow);
    animation: slideModal 0.55s cubic-bezier(0.34,1.56,0.64,1);
}

.panel-hasil-akhir::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.12), transparent);
    border-radius: var(--radius-besar);
}

.emoji-hasil { font-size: 76px; margin-bottom: 16px; display: block; animation: bounce 1.2s ease-in-out infinite; filter: drop-shadow(0 8px 16px rgba(0,0,0,0.4)); }
.judul-hasil { font-family: var(--font-display); font-size: 34px; color: #7B9EFF; margin-bottom: 12px; }
.skor-hasil  { font-family: var(--font-display); font-size: 62px; color: var(--oranye); line-height: 1; margin-bottom: 8px; text-shadow: 0 0 24px rgba(255,107,53,0.4); }
.detail-hasil { font-size: 15px; color: var(--teks-sedang); margin-bottom: 32px; line-height: 1.7; }

.grup-btn-hasil {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================================
   LOADING SPINNER
   ============================================================ */

.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15,15,30,0.85);
    backdrop-filter: blur(8px);
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s;
}

.loading-overlay.tampil { opacity: 1; pointer-events: all; }

.spinner {
    width: 52px;
    height: 52px;
    border: 5px solid rgba(255,255,255,0.1);
    border-top-color: var(--biru);
    border-radius: 50%;
    animation: putar 0.7s linear infinite;
    box-shadow: 0 0 20px rgba(67,97,238,0.3);
}

/* ============================================================
   NOTIFIKASI TOAST
   ============================================================ */

.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--bg-card);
    border: 1.5px solid var(--border-card);
    border-radius: var(--radius-kecil);
    padding: 14px 20px;
    box-shadow: var(--bayangan), var(--inner-shadow);
    font-weight: 700;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: munculKiri 0.4s cubic-bezier(0.34,1.56,0.64,1);
    border-left: 4px solid var(--biru);
    min-width: 240px;
    color: var(--teks-gelap);
    backdrop-filter: blur(8px);
}

.toast.sukses { border-left-color: var(--hijau); }
.toast.error  { border-left-color: var(--merah); }
.toast.info   { border-left-color: var(--biru); }

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 768px) {
    .header-dashboard { padding: 12px 16px; }
    .konten-dashboard  { padding: 20px 16px 60px; }

    .banner-selamat-datang {
        flex-direction: column;
        text-align: center;
        gap: 16px;
        padding: 22px 18px;
    }

    .grid-menu { grid-template-columns: 1fr 1fr; gap: 14px; }
    .kartu-menu { padding: 22px 14px; }
    .ikon-menu  { font-size: 50px; }
    .nama-menu  { font-size: 19px; }

    .panel-materi { padding: 22px 18px; }
    .area-game    { padding: 22px 14px; }

    .grid-pilihan { gap: 10px; }
    .btn-pilihan  { font-size: 16px; padding: 12px 8px; }

    .kotak-modal { padding: 28px 18px; }
    .modal-judul { font-size: 22px; }
}

@media (max-width: 480px) {
    .grid-menu { grid-template-columns: 1fr; }
    .logo-header .teks-logo { display: none; }
    .nama-user-header, .kelas-user-header { display: none; }
    .grid-statistik { grid-template-columns: repeat(3, 1fr); }
    .angka-statistik { font-size: 28px; }
    .papan-kartu.level-4 { gap: 6px; }
}

/* ============================================================
   DEKORASI INDONESIA
   ============================================================ */

.dekorasi-indonesia { display: flex; gap: 4px; align-items: center; }

.bendera-mini {
    display: flex;
    flex-direction: column;
    width: 22px;
    height: 15px;
    border-radius: 2px;
    overflow: hidden;
    box-shadow: 0 1px 4px rgba(0,0,0,0.4);
}

.bendera-mini .atas  { background: var(--merah); flex: 1; }
.bendera-mini .bawah { background: var(--putih); flex: 1; }

.garland {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 10px 0;
    flex-wrap: wrap;
}

.garland-item {
    font-size: 20px;
    animation: melayang var(--dur) ease-in-out infinite var(--delay);
    filter: drop-shadow(0 2px 6px rgba(0,0,0,0.4));
}

/* ============================================================
   SCROLLBAR CUSTOM
   ============================================================ */

::-webkit-scrollbar { width: 7px; }
::-webkit-scrollbar-track { background: rgba(255,255,255,0.03); }
::-webkit-scrollbar-thumb { background: rgba(67,97,238,0.4); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(67,97,238,0.7); }

/* ============================================================
   LANDING PAGE PROFESIONAL
   ============================================================ */

.landing-body {
    background: #08122c;
    color: #f8f9ff;
}

.landing-page {
    position: relative;
    min-height: 100vh;
    overflow: hidden;
    padding: 0 6vw;
    background:
        radial-gradient(circle at 15% 20%, rgba(54, 88, 210, 0.28), transparent 28%),
        radial-gradient(circle at 87% 45%, rgba(111, 44, 180, 0.26), transparent 30%),
        linear-gradient(145deg, #07132f 0%, #111d4c 55%, #24114f 100%);
}

.landing-page::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: linear-gradient(to bottom, black, transparent 72%);
}

.landing-glow {
    position: absolute;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.22;
    pointer-events: none;
}

.landing-glow-left {
    left: -220px;
    top: 220px;
    background: #3d74ff;
}

.landing-glow-right {
    right: -230px;
    top: 120px;
    background: #9b4dff;
}

.landing-header {
    position: relative;
    z-index: 5;
    width: min(1180px, 100%);
    min-height: 86px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
}

.landing-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: #fff;
}

.landing-brand-icon {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: 16px;
    font-size: 28px;
    background: linear-gradient(135deg, rgba(255,214,10,0.2), rgba(255,107,53,0.16));
    border: 1px solid rgba(255,255,255,0.12);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.12);
}

.landing-brand strong,
.landing-brand small {
    display: block;
}

.landing-brand strong {
    font-family: var(--font-display);
    font-size: 23px;
    line-height: 1.05;
    letter-spacing: 0.2px;
}

.landing-brand small {
    margin-top: 4px;
    color: #ffd84d;
    font-size: 12px;
    font-weight: 800;
}

.landing-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.landing-nav > a {
    color: rgba(255,255,255,0.78);
    text-decoration: none;
    font-size: 14px;
    font-weight: 800;
    padding: 11px 15px;
    border-radius: 12px;
    transition: var(--trans-fast);
}

.landing-nav > a:hover,
.landing-nav > a.active {
    color: #fff;
    background: rgba(255,255,255,0.08);
}

.landing-nav > .landing-teacher-button {
    margin-left: 8px;
    padding: 12px 19px;
    border: 1px solid rgba(132,165,255,0.55);
    background: rgba(38,63,139,0.34);
    color: #fff;
}

.landing-nav > .landing-teacher-button:hover {
    background: rgba(67,97,238,0.45);
    transform: translateY(-2px);
}

.landing-hero {
    position: relative;
    z-index: 2;
    width: min(1180px, 100%);
    margin: 26px auto 0;
    padding: clamp(34px, 6vw, 72px);
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
    align-items: center;
    gap: clamp(44px, 7vw, 90px);
    border: 1px solid rgba(255,255,255,0.11);
    border-radius: 34px;
    background:
        linear-gradient(145deg, rgba(255,255,255,0.075), rgba(255,255,255,0.025));
    box-shadow:
        0 28px 80px rgba(0,0,0,0.28),
        inset 0 1px 0 rgba(255,255,255,0.08);
    backdrop-filter: blur(18px);
}

.landing-hero-content {
    position: relative;
    z-index: 2;
}

.landing-badge,
.landing-section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #ffe277;
    background: rgba(255,214,10,0.09);
    border: 1px solid rgba(255,214,10,0.2);
    border-radius: 999px;
    padding: 8px 13px;
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 0.3px;
}

.landing-mascot {
    display: none;
}

.landing-hero h1 {
    margin: 22px 0 18px;
    max-width: 680px;
    font-family: var(--font-display);
    font-size: clamp(46px, 5.5vw, 76px);
    line-height: 0.98;
    letter-spacing: -1.2px;
    color: #fff;
    text-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.landing-hero h1 span {
    display: block;
    margin-top: 10px;
    color: #ffd326;
    text-shadow: 0 0 32px rgba(255,211,38,0.22);
}

.landing-description {
    max-width: 650px;
    color: rgba(239,242,255,0.76);
    font-size: clamp(16px, 1.7vw, 19px);
    line-height: 1.75;
    font-weight: 600;
}

.landing-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 30px;
}

.landing-primary-button,
.landing-secondary-button {
    min-height: 56px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 11px;
    border-radius: 16px;
    padding: 0 23px;
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 900;
    text-decoration: none;
    transition: var(--trans-smooth);
}

.landing-primary-button {
    border: none;
    cursor: pointer;
    color: #11182d;
    background: linear-gradient(135deg, #ffe13c, #ff9c2e);
    box-shadow: 0 14px 35px rgba(255,157,46,0.26), inset 0 1px 0 rgba(255,255,255,0.5);
}

.landing-primary-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 42px rgba(255,157,46,0.4), inset 0 1px 0 rgba(255,255,255,0.5);
}

.landing-secondary-button {
    color: #fff;
    border: 1px solid rgba(148,169,255,0.38);
    background: rgba(26,43,104,0.42);
}

.landing-secondary-button:hover {
    transform: translateY(-3px);
    background: rgba(54,78,159,0.48);
    border-color: rgba(172,188,255,0.62);
}

.landing-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
    margin-top: 24px;
    color: rgba(255,255,255,0.62);
    font-size: 12px;
    font-weight: 800;
}

.landing-visual {
    position: relative;
    min-height: 430px;
    display: grid;
    place-items: center;
}

.visual-orbit {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(152,177,255,0.14);
}

.orbit-one {
    width: 400px;
    height: 400px;
}

.orbit-two {
    width: 310px;
    height: 310px;
    border-style: dashed;
}

.visual-card {
    border: 1px solid rgba(255,255,255,0.13);
    background: linear-gradient(145deg, rgba(31,51,126,0.96), rgba(30,22,85,0.96));
    box-shadow: 0 24px 65px rgba(0,0,0,0.36), inset 0 1px 0 rgba(255,255,255,0.09);
    backdrop-filter: blur(16px);
}

.visual-card-main {
    position: relative;
    z-index: 2;
    width: min(360px, 88%);
    padding: 24px;
    border-radius: 28px;
    transform: rotate(-1.5deg);
}

.visual-card-top,
.visual-progress-text {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.visual-card-label {
    color: rgba(255,255,255,0.68);
    font-size: 12px;
    font-weight: 800;
}

.visual-card-status {
    padding: 6px 10px;
    color: #113324;
    background: #84f2bd;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 900;
}

.visual-book {
    width: 104px;
    height: 104px;
    margin: 26px auto 18px;
    display: grid;
    place-items: center;
    border-radius: 30px;
    font-size: 58px;
    background: linear-gradient(145deg, #315fde, #7e4ee2);
    box-shadow: 0 18px 40px rgba(17,31,91,0.4), inset 0 1px 0 rgba(255,255,255,0.15);
}

.visual-card-main h3 {
    font-size: 21px;
    text-align: center;
    color: #fff;
}

.visual-card-main p {
    margin-top: 8px;
    color: rgba(255,255,255,0.64);
    text-align: center;
    font-size: 13px;
    line-height: 1.5;
}

.visual-progress {
    height: 9px;
    margin-top: 22px;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(255,255,255,0.1);
}

.visual-progress span {
    display: block;
    width: 70%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #ffe138, #ff9b2e);
}

.visual-progress-text {
    margin-top: 9px;
    color: rgba(255,255,255,0.62);
    font-size: 11px;
}

.visual-progress-text strong {
    color: #ffe56d;
}

.visual-mini {
    position: absolute;
    z-index: 3;
    min-width: 205px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 17px;
    border-radius: 18px;
}

.visual-mini > span {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border-radius: 14px;
    font-size: 24px;
    background: rgba(255,255,255,0.1);
}

.visual-mini strong,
.visual-mini small {
    display: block;
}

.visual-mini strong {
    color: #fff;
    font-size: 13px;
}

.visual-mini small {
    margin-top: 3px;
    color: rgba(255,255,255,0.58);
    font-size: 10px;
}

.visual-mini-top {
    top: 35px;
    right: -12px;
    animation: melayang 4.5s ease-in-out infinite;
}

.visual-mini-bottom {
    left: -25px;
    bottom: 42px;
    animation: melayang 5s ease-in-out infinite 0.7s;
}

.landing-features {
    position: relative;
    z-index: 2;
    width: min(1180px, 100%);
    margin: 22px auto 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.landing-feature-card {
    min-height: 150px;
    display: flex;
    align-items: flex-start;
    gap: 17px;
    padding: 23px;
    border: 1px solid rgba(255,255,255,0.09);
    border-radius: 22px;
    background: rgba(255,255,255,0.045);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
    transition: var(--trans-smooth);
}

.landing-feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255,255,255,0.17);
    background: rgba(255,255,255,0.07);
}

.feature-icon {
    flex: 0 0 52px;
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    border-radius: 17px;
    font-size: 27px;
}

.feature-blue { background: linear-gradient(145deg, #2459d8, #4f87ff); }
.feature-purple { background: linear-gradient(145deg, #7240d8, #a85bf1); }
.feature-green { background: linear-gradient(145deg, #139b77, #35d0a6); }

.landing-feature-card h2 {
    color: #fff;
    font-size: 17px;
    margin: 2px 0 7px;
}

.landing-feature-card p {
    color: rgba(255,255,255,0.62);
    font-size: 13px;
    line-height: 1.65;
}

.landing-about {
    position: relative;
    z-index: 2;
    width: min(1180px, 100%);
    margin: 68px auto 0;
    padding: 34px 0 52px;
    display: grid;
    grid-template-columns: 1fr 0.9fr;
    gap: 80px;
    align-items: end;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.landing-about h2 {
    max-width: 620px;
    margin-top: 15px;
    color: #fff;
    font-family: var(--font-display);
    font-size: clamp(28px, 3.2vw, 44px);
    line-height: 1.15;
}

.landing-about > p {
    color: rgba(255,255,255,0.62);
    font-size: 15px;
    line-height: 1.8;
}

.landing-footer {
    position: relative;
    z-index: 2;
    width: min(1180px, 100%);
    min-height: 82px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    color: rgba(255,255,255,0.5);
    font-size: 13px;
    font-weight: 700;
    border-top: 1px solid rgba(255,255,255,0.07);
}

.landing-star {
    position: absolute;
    z-index: 1;
    color: rgba(255,218,64,0.65);
    text-shadow: 0 0 18px rgba(255,217,64,0.35);
    animation: melayang 4s ease-in-out infinite;
}

.star-a { left: 3%; top: 25%; font-size: 19px; }
.star-b { left: 7%; top: 67%; font-size: 14px; animation-delay: .7s; }
.star-c { right: 4%; top: 30%; font-size: 21px; animation-delay: .3s; }
.star-d { right: 7%; top: 72%; font-size: 15px; animation-delay: 1s; }

.landing-login-modal {
    max-width: 440px;
    padding: 34px;
}

.landing-login-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 14px;
    display: grid;
    place-items: center;
    border-radius: 22px;
    font-size: 38px;
    background: linear-gradient(145deg, #315fde, #7d4dde);
    box-shadow: 0 18px 40px rgba(49,95,222,0.25);
}

.landing-login-submit {
    width: 100%;
    justify-content: center;
    margin-top: 8px;
    padding: 15px 20px;
    font-size: 16px;
    animation: none;
}

.landing-login-help {
    margin-top: 15px;
    text-align: center;
    color: var(--teks-sedang);
    font-size: 12px;
    font-weight: 700;
}

@media (max-width: 980px) {
    .landing-page { padding: 0 24px; }

    .landing-nav > a:not(.landing-teacher-button) {
        display: none;
    }

    .landing-hero {
        grid-template-columns: 1fr;
        padding: 46px 38px;
        text-align: center;
    }

    .landing-description,
    .landing-hero h1 {
        margin-left: auto;
        margin-right: auto;
    }

    .landing-actions,
    .landing-trust {
        justify-content: center;
    }

    .landing-visual {
        width: min(520px, 100%);
        margin: 0 auto;
    }

    .landing-features {
        grid-template-columns: 1fr;
    }

    .landing-about {
        grid-template-columns: 1fr;
        gap: 22px;
    }
}

@media (max-width: 620px) {
    .landing-page { padding: 0 14px; }

    .landing-header {
        min-height: 72px;
    }

    .landing-brand-icon {
        width: 42px;
        height: 42px;
        font-size: 23px;
    }

    .landing-brand strong { font-size: 19px; }
    .landing-brand small { font-size: 10px; }

    .landing-nav > .landing-teacher-button {
        margin-left: 0;
        padding: 10px 12px;
        font-size: 12px;
    }

    .landing-hero {
        margin-top: 14px;
        padding: 34px 20px;
        border-radius: 25px;
    }

    .landing-hero h1 {
        font-size: clamp(39px, 13vw, 54px);
    }

    .landing-description {
        font-size: 15px;
    }

    .landing-actions {
        flex-direction: column;
    }

    .landing-primary-button,
    .landing-secondary-button {
        width: 100%;
    }

    .landing-trust {
        display: grid;
        justify-items: start;
        width: max-content;
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

    .landing-visual {
        min-height: 390px;
    }

    .visual-card-main {
        width: 95%;
    }

    .visual-mini {
        min-width: 175px;
        padding: 12px;
    }

    .visual-mini-top { right: -8px; }
    .visual-mini-bottom { left: -8px; }

    .landing-feature-card {
        padding: 20px;
    }

    .landing-about {
        margin-top: 48px;
    }

    .landing-login-modal {
        padding: 28px 21px;
    }
}