/* =========================================================
   Ceria Belajar — Neo Minimal Brutalism (Rounded)
   Font: Nunito | Colors: #ffffff #1CB0F6 #FFC800 #000000
   ========================================================= */

/* ---------- Design Tokens ---------- */
:root {
  --white: #ffffff;
  --blue: #1cb0f6;
  --blue-dark: #0f8fd0;
  --yellow: #ffc800;
  --black: #000000;

  --border: 2px solid var(--black);
  --shadow: 5px 5px 0 var(--black);
  --shadow-sm: 3px 3px 0 var(--black);

  --r-sm: 12px;
  --r-md: 20px;
  --r-lg: 28px;
  --r-xl: 30px;
  --r-pill: 999px;

  --container: 1120px;
  --space: clamp(56px, 8vw, 104px);

  --font: "Nunito", system-ui, -apple-system, "Segoe UI", sans-serif;
}

/* ---------- Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--black);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  line-height: 1.15;
  font-weight: 900;
  letter-spacing: -0.02em;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}

.section {
  padding-block: var(--space);
  border-top: var(--border);
}

/* =========================================================
   NAVBAR
   ========================================================= */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: var(--border);
}

.navbar__inner {
  max-width: var(--container);
  margin-inline: auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  background: var(--blue);
  color: var(--white);
  border: var(--border);
  border-radius: var(--r-sm);
  box-shadow: var(--shadow-sm);
  font-weight: 900;
  font-size: 15px;
  letter-spacing: 0.02em;
}

.brand__logo {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.brand__name {
  font-weight: 900;
  font-size: 20px;
  letter-spacing: -0.02em;
}

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  font-family: var(--font);
  font-size: 15px;
  font-weight: 800;
  color: var(--black);
  background: var(--white);
  border: var(--border);
  border-radius: var(--r-pill);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--black);
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--black);
}

.btn--primary {
  background: var(--blue);
  color: var(--white);
}

.btn--accent {
  background: var(--yellow);
  color: var(--black);
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  padding-block: clamp(48px, 7vw, 88px);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 48px;
  align-items: center;
}

.badge {
  display: inline-block;
  padding: 6px 16px;
  margin-bottom: 20px;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--yellow);
  border: var(--border);
  border-radius: var(--r-pill);
}

.hero h1 {
  font-size: clamp(38px, 6.4vw, 68px);
}

.lead {
  max-width: 50ch;
  margin-top: 20px;
  font-size: 17px;
  font-weight: 600;
  color: #2a2a2a;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

/* Kartu statistik hero */
.hero__card {
  display: grid;
  gap: 18px;
  padding: 32px;
  background: var(--blue);
  border: var(--border);
  border-radius: var(--r-lg);
  box-shadow: 8px 8px 0 var(--black);
}

.stat {
  display: flex;
  flex-direction: column;
  padding-bottom: 18px;
  border-bottom: 2px solid rgba(0, 0, 0, 0.25);
  color: var(--white);
}

.stat:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.stat__num {
  font-size: 40px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

.stat__label {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.92;
}

/* =========================================================
   SECTION HEAD
   ========================================================= */
.section__head {
  max-width: 640px;
  margin-bottom: 44px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 12px;
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--blue-dark);
}

.section__head h2 {
  font-size: clamp(28px, 4vw, 42px);
}

.section__head p {
  margin-top: 14px;
  font-weight: 600;
  color: #333;
}

/* =========================================================
   PROGRAM CARDS
   ========================================================= */
.programs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  align-items: start;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 30px 26px;
  background: var(--white);
  border: var(--border);
  border-radius: var(--r-md);
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0 var(--black);
}

.card--featured {
  background: var(--blue);
  color: var(--white);
}

.card__tag {
  align-self: flex-start;
  padding: 4px 14px;
  margin-bottom: 18px;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--yellow);
  color: var(--black);
  border: var(--border);
  border-radius: var(--r-pill);
}

.card__badge {
  position: absolute;
  top: -12px;
  right: -12px;
  width: 72px;
  height: 72px;
  object-fit: contain;
  pointer-events: none;
  filter: drop-shadow(2px 2px 0 var(--black));
  transform: rotate(8deg);
  z-index: 2;
}

.card h3 {
  font-size: 24px;
}

.card__desc {
  margin-top: 10px;
  font-weight: 600;
  font-size: 15px;
}

.card--featured .card__desc {
  color: rgba(255, 255, 255, 0.92);
}

.features {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.features li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  font-weight: 600;
}

.features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 11px;
  height: 11px;
  background: var(--blue);
  border: 2px solid var(--black);
  border-radius: 4px;
}

.card--featured .features li::before {
  background: var(--yellow);
  border-color: var(--black);
}

.features--lg {
  margin-top: 0;
  gap: 14px;
}

.features--lg li {
  font-size: 16px;
}

/* =========================================================
   BONUS + KELAS TAMBAHAN
   ========================================================= */
.bonus__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 26px;
  align-items: start;
}

.panel {
  padding: 32px 28px;
  background: var(--white);
  border: var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow);
}

.panel__title {
  margin-bottom: 22px;
  font-size: 22px;
}

.extras {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.extra {
  padding: 20px;
  border: var(--border);
  border-radius: var(--r-md);
  background: var(--white);
  transition: background 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.extra:hover {
  background: #f4fbff;
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-sm);
}

.extra__num {
  display: block;
  margin-bottom: 10px;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--blue-dark);
}

.extra h4 {
  font-size: 17px;
}

.extra p {
  margin-top: 6px;
  font-size: 14px;
  font-weight: 600;
  color: #444;
}

/* =========================================================
   FAQ
   ========================================================= */
.faq {
  display: grid;
  gap: 16px;
  max-width: 780px;
}

.faq__item {
  padding: 20px 24px;
  background: var(--white);
  border: var(--border);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.faq__item[open] {
  box-shadow: var(--shadow);
}

.faq__item summary {
  cursor: pointer;
  font-size: 17px;
  font-weight: 800;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.faq__item summary::-webkit-details-marker {
  display: none;
}

.faq__item summary::after {
  content: "+";
  font-size: 24px;
  font-weight: 900;
  color: var(--blue);
  line-height: 1;
  transition: transform 0.25s ease;
}

.faq__item[open] summary::after {
  content: "−";
  transform: rotate(180deg);
}

.faq__item p {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 2px solid var(--black);
  font-size: 15px;
  font-weight: 600;
  color: #333;
}

/* =========================================================
   MERCHANDISE
   ========================================================= */
.merch__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  align-items: stretch;
}

.merch {
  display: block; /* tidak perlu flex lagi */
  padding: 6px; /* ← kecil, cuma bingkai */
  background: var(--white);
  border: var(--border);
  border-radius: var(--r-sm);
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.merch:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow);
}

.merch__media {
  width: 100%;
  aspect-ratio: 1 / 1; /* kunci persegi */
  overflow: hidden;
  border-radius: 6px;
  background: var(--white);
}

.merch__media img {
  width: 100%;
  height: 100%;
  object-fit: contain; /* gambar utuh, tidak terpotong */
  display: block;
}

/* =========================================================
   CTA
   ========================================================= */
.cta__inner {
  width: 100%;
  max-width: 720px;
  margin-inline: auto;
  padding: clamp(28px, 5vw, 72px) clamp(20px, 5vw, 56px);
  text-align: center;
  background: var(--blue);
  color: var(--white);
  border: var(--border);
  border-radius: var(--r-xl);
  box-shadow: 8px 8px 0 var(--black);
}

.cta__inner h2 {
  font-size: clamp(28px, 4vw, 44px);
}

.cta__inner p {
  max-width: 52ch;
  margin: 16px auto 0;
  font-weight: 700;
}

.cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 30px;
}

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  border-top: var(--border);
  padding-block: 44px;
  background: var(--white);
}

.footer__inner {
  display: grid;
  gap: 14px;
  justify-items: center;
  text-align: center;
}

.footer__meta {
  font-size: 15px;
  font-weight: 600;
  color: #333;
}

.footer__copy {
  font-size: 13px;
  font-weight: 700;
  color: #666;
}

/* Sosmed */
.socials {
  display: flex;
  gap: 12px;
  margin-block: 4px;
}

.socials a {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  background: var(--white);
  border: var(--border);
  border-radius: var(--r-sm);
  box-shadow: var(--shadow-sm);
  color: var(--black);
  font-size: 22px;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease,
    color 0.12s ease;
}

.socials a:hover {
  background: var(--blue);
  color: var(--white);
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--black);
}

/* =========================================================
   ANIMASI ON SCROLL — fade + slide + blur
   ========================================================= */
[data-animate] {
  opacity: 0;
  transform: translateY(36px) scale(0.98);
  filter: blur(3px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.9s cubic-bezier(0.16, 1, 0.3, 1),
    filter 0.9s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: var(--d, 0s);
  will-change: opacity, transform, filter;
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
  /* Lepas GPU layer setelah animasi selesai */
  will-change: auto;
}

/* Mode "instant" — dipakai saat scroll dari bawah ke atas.
     Tetap reveal, tapi tanpa animasi. */
[data-animate].no-anim {
  transition: none;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 960px) {
  .hero__grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .programs {
    grid-template-columns: 1fr 1fr;
  }

  .programs .card--featured {
    order: -1;
  }

  .bonus__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .programs {
    grid-template-columns: 1fr;
  }

  .extras {
    grid-template-columns: 1fr;
  }

  .hero__actions .btn,
  .cta__actions .btn {
    width: 100%;
  }

  .brand__name {
    font-size: 18px;
  }

  .merch {
    padding: 8px;
  }

  .merch__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
}

@media (max-width: 620px) {
  /* ...rule lain yang sudah ada... */

  .merch__grid {
    grid-template-columns: repeat(2, 1fr); /* ← mobile: 2 kolom */
    gap: 10px;
  }

  .cta__inner {
    padding: 28px 20px;
    border-radius: 22px;
    box-shadow: 5px 5px 0 var(--black);
  }

  .cta__inner h2 {
    font-size: 24px;
    line-height: 1.2;
  }

  .cta__inner p {
    font-size: 15px;
    margin-top: 12px;
  }

  .cta__actions {
    margin-top: 22px;
  }
}

@media (max-width: 360px) {
  .footer .brand {
    flex-direction: column;
    text-align: center;
    gap: 6px;
  }

  .footer .brand__name {
    font-size: 16px;
    line-height: 1.2;
    max-width: 200px;
  }
}