/* ===== Variables ===== */
:root {
    --bg: #faf8ff;
    --bg-soft: #f0ecfa;
    --surface: #ffffff;
    --text: #2d2a35;
    --text-muted: #7a7585;
    --primary: #7c6cf0;
    --primary-light: #a594f9;
    --primary-soft: #ede9fe;
    --accent: #ff8fab;
    --accent-soft: #ffe4ec;
    --mint: #6ee7b7;
    --mint-soft: #d1fae5;
    --sky: #7dd3fc;
    --sky-soft: #e0f2fe;
    --sun: #fbbf24;
    --sun-soft: #fef3c7;
    --lavender: #c4b5fd;
    --border: rgba(45, 42, 53, 0.07);
    --shadow: 0 4px 24px rgba(124, 108, 240, 0.08);
    --shadow-lg: 0 16px 48px rgba(124, 108, 240, 0.15);
    --radius: 20px;
    --radius-sm: 12px;
    --font: 'Plus Jakarta Sans', system-ui, sans-serif;
    --ease: cubic-bezier(0.34, 1.56, 0.64, 1);
    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: var(--font); cursor: pointer; }

.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 20px;
}

.section { padding: 96px 0; position: relative; }
.section__header { text-align: center; max-width: 580px; margin: 0 auto 48px; }
.section__tag {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    background: var(--primary-soft);
    padding: 8px 16px;
    border-radius: 100px;
    margin-bottom: 16px;
}
.section__title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}
.section__desc { color: var(--text-muted); font-size: 1.05rem; }

/* ===== Cursor Glow (desktop) ===== */
.cursor-glow {
    position: fixed;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(124, 108, 240, 0.12) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
    opacity: 0;
}
@media (hover: hover) { .cursor-glow { opacity: 1; } }

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 200;
    background: rgba(250, 248, 255, 0.8);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}
.header--scrolled {
    box-shadow: var(--shadow);
    background: rgba(250, 248, 255, 0.95);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 16px;
}
.nav__logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    font-size: 1.15rem;
    z-index: 10;
}
.nav__logo-icon { font-size: 1.3rem; animation: wiggle 3s ease-in-out infinite; }
.nav__menu { display: flex; gap: 8px; }
.nav__link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    padding: 8px 16px;
    border-radius: 100px;
    transition: var(--transition);
    position: relative;
}
.nav__link:hover, .nav__link.active {
    color: var(--primary);
    background: var(--primary-soft);
}
.nav__cta { display: inline-flex; z-index: 10; }

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    padding: 8px;
    z-index: 10;
}
.nav__toggle span {
    display: block;
    width: 24px;
    height: 2.5px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 100px;
    font-size: 0.95rem;
    font-weight: 700;
    border: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.btn--sm { padding: 10px 20px; font-size: 0.85rem; }
.btn--primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    box-shadow: 0 4px 20px rgba(124, 108, 240, 0.4);
}
.btn--primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 32px rgba(124, 108, 240, 0.5);
}
.btn--ghost {
    background: var(--surface);
    color: var(--text);
    border: 2px solid var(--border);
}
.btn--ghost:hover {
    border-color: var(--primary-light);
    color: var(--primary);
    transform: translateY(-2px);
}
.btn--white {
    background: #fff;
    color: var(--primary);
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}
.btn--white:hover { transform: translateY(-3px) scale(1.05); }
.btn--bounce:active { transform: scale(0.95); }

/* ===== Hero ===== */
.hero {
    position: relative;
    padding: 150px 0 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
}

.hero__blobs { position: absolute; inset: 0; z-index: 0; }
.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.5;
    animation: blobFloat 8s ease-in-out infinite;
}
.blob--1 {
    width: 400px; height: 400px;
    background: var(--primary-soft);
    top: 10%; left: -5%;
    animation-delay: 0s;
}
.blob--2 {
    width: 350px; height: 350px;
    background: var(--accent-soft);
    top: 30%; right: -8%;
    animation-delay: -3s;
}
.blob--3 {
    width: 300px; height: 300px;
    background: var(--mint-soft);
    bottom: 20%; left: 30%;
    animation-delay: -5s;
}

.hero__floaters { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.floater {
    position: absolute;
    font-size: clamp(1.5rem, 3vw, 2rem);
    animation: float 6s ease-in-out infinite;
    animation-delay: calc(var(--i) * -1s);
    opacity: 0.6;
}
.floater:nth-child(1) { top: 15%; left: 8%; }
.floater:nth-child(2) { top: 25%; right: 10%; }
.floater:nth-child(3) { top: 55%; left: 5%; }
.floater:nth-child(4) { top: 65%; right: 8%; }
.floater:nth-child(5) { top: 40%; left: 15%; }
.floater:nth-child(6) { top: 75%; right: 20%; }

.hero__content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding-bottom: 48px;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 10px 20px;
    border-radius: 100px;
    margin-bottom: 28px;
    box-shadow: var(--shadow);
    animation: fadeUp 0.8s var(--ease) both;
}
.hero__badge-dot {
    width: 8px; height: 8px;
    background: var(--mint);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero__title {
    font-size: clamp(2.5rem, 7vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -0.03em;
    animation: fadeUp 0.8s 0.1s var(--ease) both;
}
.hero__rotating {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    min-width: 120px;
    transition: opacity 0.3s, transform 0.3s;
}
.hero__rotating.fade-out { opacity: 0; transform: translateY(10px); }
.hero__highlight {
    display: block;
    font-size: 0.85em;
    color: var(--text-muted);
    -webkit-text-fill-color: var(--text-muted);
    margin-top: 4px;
}

.hero__desc {
    font-size: clamp(1rem, 2.5vw, 1.15rem);
    color: var(--text-muted);
    max-width: 520px;
    margin: 0 auto 32px;
    animation: fadeUp 0.8s 0.2s var(--ease) both;
}
.hero__actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 48px;
    animation: fadeUp 0.8s 0.3s var(--ease) both;
}

.hero__stats {
    display: flex;
    gap: clamp(24px, 5vw, 56px);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeUp 0.8s 0.4s var(--ease) both;
}
.stat {
    text-align: center;
    padding: 16px 24px;
    background: var(--surface);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    min-width: 120px;
    transition: transform var(--transition);
}
.stat:hover { transform: translateY(-4px) scale(1.03); }
.stat__num {
    display: block;
    font-size: 1.75rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.stat__label { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; }

/* Marquee */
.marquee {
    position: relative;
    z-index: 2;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    padding: 14px 0;
    overflow: hidden;
    margin-top: auto;
}
.marquee__track {
    display: flex;
    gap: 48px;
    animation: marquee 25s linear infinite;
    white-space: nowrap;
}
.marquee__track span {
    font-size: 0.9rem;
    font-weight: 600;
    color: rgba(255,255,255,0.9);
    flex-shrink: 0;
}

/* ===== Katalog ===== */
.katalog { background: var(--bg-soft); }

.katalog__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
    gap: 28px;
    perspective: 1000px;
}

.card {
    position: relative;
    background: var(--surface);
    border-radius: var(--radius);
    padding: 32px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    transform-style: preserve-3d;
    transition: box-shadow 0.4s, transform 0.1s linear;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
}
.card.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s var(--ease), transform 0.6s var(--ease), box-shadow 0.4s;
}
.card:hover { box-shadow: var(--shadow-lg); }

.card__shine {
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, transparent 40%, rgba(255,255,255,0.4) 45%, transparent 50%);
    transform: translateX(-100%);
    transition: transform 0.6s;
    pointer-events: none;
}
.card:hover .card__shine { transform: translateX(100%); }

.card--toefl { --card-color: var(--sky); --card-soft: var(--sky-soft); }
.card--uskp { --card-color: var(--primary); --card-soft: var(--primary-soft); }
.card--psiko { --card-color: var(--accent); --card-soft: var(--accent-soft); }

.card__emoji {
    font-size: 2.5rem;
    margin-bottom: 16px;
    display: inline-block;
    animation: wiggle 4s ease-in-out infinite;
}
.card__badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 5px 12px;
    border-radius: 100px;
    background: var(--card-soft);
    color: var(--card-color);
    margin-bottom: 12px;
    width: fit-content;
}
.card__badge--hot {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    color: #b45309;
}
.card__title {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 10px;
}
.card__desc {
    font-size: 0.925rem;
    color: var(--text-muted);
    margin-bottom: 20px;
    flex: 1;
}
.card__features { margin-bottom: 24px; }
.card__features li {
    font-size: 0.875rem;
    color: var(--text-muted);
    padding: 5px 0 5px 24px;
    position: relative;
}
.card__features li::before {
    content: '✦';
    position: absolute;
    left: 0;
    color: var(--card-color);
    font-size: 0.7rem;
}

.card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: auto;
}
.card__rating {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--sun);
}
.card__btn {
    display: inline-flex;
    align-items: center;
    padding: 10px 20px;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 700;
    background: var(--card-color);
    color: #fff;
    transition: var(--transition);
}
.card__btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

/* ===== Filter ===== */
.filter {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 36px;
}
.filter__btn {
    padding: 10px 18px;
    border-radius: 100px;
    border: 2px solid var(--border);
    background: var(--surface);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: var(--transition);
}
.filter__btn:hover {
    border-color: var(--primary-light);
    color: var(--primary);
    transform: translateY(-2px);
}
.filter__btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    box-shadow: 0 4px 16px rgba(124, 108, 240, 0.3);
}

/* ===== Rekomendasi ===== */
.rekomendasi__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 240px), 1fr));
    gap: 20px;
}

.rec-card {
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 24px;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    position: relative;
    overflow: hidden;
}
.rec-card.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
    transition: opacity 0.5s var(--ease), transform 0.5s var(--ease), border-color 0.3s, box-shadow 0.3s;
}
.rec-card.hidden { display: none; }
.rec-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px) scale(1.02);
}
.rec-card.pop {
    animation: pop 0.5s var(--ease);
}
.rec-card__emoji {
    font-size: 2rem;
    margin-bottom: 12px;
    display: inline-block;
    transition: transform 0.3s var(--ease);
}
.rec-card:hover .rec-card__emoji { transform: scale(1.2) rotate(-8deg); }
.rec-card__cat {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--primary);
    margin-bottom: 6px;
}
.rec-card__title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 6px;
}
.rec-card__desc {
    font-size: 0.825rem;
    color: var(--text-muted);
    line-height: 1.5;
}
.rec-card__tag {
    display: inline-block;
    margin-top: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 6px;
    background: var(--bg-soft);
    color: var(--text-muted);
}
.rec-card__tag--soon {
    background: var(--sun-soft);
    color: #b45309;
}

/* ===== Tentang ===== */
.tentang__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}
.tentang__text {
    color: var(--text-muted);
    margin-bottom: 24px;
    font-size: 1.05rem;
}
.tentang__chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.chip {
    padding: 8px 16px;
    border-radius: 100px;
    background: var(--surface);
    border: 2px solid var(--border);
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition);
    cursor: default;
}
.chip:hover {
    border-color: var(--primary-light);
    background: var(--primary-soft);
    transform: translateY(-2px);
}

.tentang__card {
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow-lg);
}
.tentang__card-q {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-align: center;
}
.tentang__options {
    display: flex;
    gap: 10px;
    margin-bottom: 24px;
}
.tentang__opt {
    flex: 1;
    padding: 14px 8px;
    border-radius: var(--radius-sm);
    border: 2px solid var(--border);
    background: var(--bg);
    font-size: 0.85rem;
    font-weight: 700;
    transition: var(--transition);
}
.tentang__opt:hover {
    border-color: var(--primary);
    background: var(--primary-soft);
    transform: translateY(-3px);
}
.tentang__opt.selected {
    border-color: var(--primary);
    background: var(--primary);
    color: #fff;
    transform: scale(1.05);
}
.tentang__result {
    text-align: center;
    padding: 20px;
    background: var(--bg-soft);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.tentang__result-emoji {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 8px;
    animation: bounce 0.6s var(--ease);
}
.tentang__result p {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--primary);
}

/* ===== CTA ===== */
.cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, var(--accent) 100%);
    position: relative;
    overflow: hidden;
}
.cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.06'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.cta__inner {
    position: relative;
    text-align: center;
    color: #fff;
}
.cta__title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 12px;
}
.cta__desc {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 28px;
}

/* ===== Footer ===== */
.footer {
    background: var(--text);
    color: rgba(255,255,255,0.65);
    padding: 36px 0;
}
.footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}
.footer__brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    color: #fff;
    font-size: 1.05rem;
}
.footer__copy { font-size: 0.85rem; }
.footer__links { display: flex; gap: 20px; }
.footer__links a {
    font-size: 0.85rem;
    transition: color 0.3s;
}
.footer__links a:hover { color: var(--lavender); }

/* ===== AOS ===== */
[data-aos] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
[data-aos].visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Animations ===== */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}
@keyframes blobFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}
@keyframes marquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}
@keyframes wiggle {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-5deg); }
    75% { transform: rotate(5deg); }
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.3); }
}
@keyframes bounce {
    0% { transform: scale(0.3); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}
@keyframes pop {
    0% { transform: scale(1); }
    50% { transform: scale(1.08); }
    100% { transform: scale(1); }
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .tentang__inner { grid-template-columns: 1fr; }
    .tentang__options { flex-direction: column; }
}

@media (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: 0; left: 0; right: 0; bottom: 0;
        background: rgba(250, 248, 255, 0.98);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 8px;
        transform: translateX(100%);
        transition: transform 0.4s var(--ease);
        z-index: 5;
    }
    .nav__menu.open { transform: translateX(0); }
    .nav__link { font-size: 1.2rem; padding: 12px 24px; }
    .nav__cta { display: none; }
    .nav__toggle { display: flex; }
    .nav__toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .nav__toggle.active span:nth-child(2) { opacity: 0; }
    .nav__toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

    .hero { padding-top: 120px; min-height: auto; }
    .hero__floaters .floater { opacity: 0.35; font-size: 1.2rem; }
    .section { padding: 72px 0; }
    .footer__inner { flex-direction: column; text-align: center; }
    .filter { gap: 8px; }
    .filter__btn { padding: 8px 14px; font-size: 0.8rem; }
    .card { padding: 24px; }
    .stat { min-width: 100px; padding: 12px 16px; }
}

@media (max-width: 480px) {
    .hero__stats { gap: 12px; }
    .stat { flex: 1; min-width: 90px; }
    .hero__actions .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    html { scroll-behavior: auto; }
}