:root {
  --bg: #edf5ff;
  --paper: rgba(255, 255, 255, 0.84);
  --paper-soft: rgba(255, 255, 255, 0.72);
  --paper-deep: rgba(232, 243, 255, 0.92);
  --text: #143047;
  --muted: #5d7082;
  --line: rgba(20, 48, 71, 0.10);
  --blue: #2f7ef7;
  --cyan: #73c7ff;
  --teal: #4fd5d2;
  --shadow: 0 24px 70px rgba(41, 90, 148, 0.10);
  --radius: 34px;
  --radius-sm: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  font-family: Inter, "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, Arial, sans-serif;
  font-size: 15px;
  font-weight: 400;
  line-height: 1.58;
  letter-spacing: -0.01em;
  background:
    radial-gradient(circle at 10% 10%, rgba(115, 199, 255, 0.28), transparent 22rem),
    radial-gradient(circle at 90% 18%, rgba(79, 213, 210, 0.20), transparent 18rem),
    linear-gradient(180deg, #f7fbff 0%, #eef6ff 45%, #eaf3ff 100%);
}
body, button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, p, ul { margin: 0; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.nav, .hero, .section, .footer, .marketing-modal { backdrop-filter: blur(18px); }

.nav {
  position: sticky;
  top: 14px;
  z-index: 40;
  width: min(1160px, calc(100% - 24px));
  margin: 14px auto 0;
  padding: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.70);
  box-shadow: 0 10px 40px rgba(44, 96, 154, 0.08);
}
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  box-shadow: 0 0 0 5px rgba(47, 126, 247, 0.14);
}
.brand-text { font-size: 14px; }
.nav-links { display: flex; align-items: center; gap: 4px; color: var(--muted); font-size: 13px; }
.nav-links a { padding: 10px 13px; border-radius: 999px; }
.nav-links a:hover { background: rgba(47, 126, 247, 0.08); color: var(--text); }

main, .footer {
  width: min(1160px, calc(100% - 24px));
  margin: 0 auto;
}

.hero {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 0.95fr;
  gap: 18px;
  align-items: stretch;
  margin-top: 18px;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--line);
  border-radius: 36px;
  background:
    linear-gradient(135deg, rgba(255,255,255,0.86), rgba(233,245,255,0.96) 48%, rgba(240,252,255,0.88) 100%);
  box-shadow: var(--shadow);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 8% 14%, rgba(47,126,247,0.14), transparent 19rem),
    radial-gradient(circle at 80% 14%, rgba(115,199,255,0.20), transparent 20rem),
    radial-gradient(circle at 85% 82%, rgba(79,213,210,0.12), transparent 18rem);
}
.hero-copy {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 700px;
}
.eyebrow {
  margin-bottom: 12px;
  color: var(--blue);
  font-size: 12px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
h1 {
  max-width: 680px;
  font-size: clamp(30px, 4.8vw, 54px);
  line-height: 1.03;
  letter-spacing: -0.055em;
}
h2 {
  font-size: clamp(23px, 3vw, 35px);
  line-height: 1.12;
  letter-spacing: -0.04em;
}
h3 { font-size: 18px; line-height: 1.24; letter-spacing: -0.02em; }
.lead, .section-text, .modal-lead {
  color: var(--muted);
  font-size: clamp(15px, 1.75vw, 18px);
}
.hero-actions, .hero-points, .quick-bar { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-actions { margin-top: 24px; }
.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,0.68);
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.button:hover { transform: translateY(-1px); }
.button.primary {
  border-color: transparent;
  color: #ffffff;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 16px 34px rgba(47,126,247,0.22);
}
.button.ghost { background: rgba(255,255,255,0.76); }
.button.full { width: 100%; }
.hero-points { margin-top: 18px; color: var(--muted); font-size: 13px; }
.hero-points span,
.quick-bar span {
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,0.70);
}

.hero-visual {
  position: relative;
  min-height: 560px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.74);
  border-radius: 30px;
  background: linear-gradient(180deg, #d7ecff, #f6fbff);
  box-shadow: 0 28px 80px rgba(22, 62, 111, 0.16);
}
.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(1.02) contrast(1.02);
}
.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.06) 0%, rgba(20,48,71,0.38) 100%),
    radial-gradient(circle at 50% 0%, rgba(255,255,255,0.50), transparent 18rem);
}
.cloud {
  position: absolute;
  z-index: 2;
  pointer-events: none;
  border-radius: 999px;
  background: rgba(255,255,255,0.88);
  filter: blur(6px);
  box-shadow: 0 0 60px rgba(255,255,255,0.40);
}
.cloud::before,
.cloud::after {
  content: "";
  position: absolute;
  background: inherit;
  border-radius: inherit;
}
.cloud-a { width: 240px; height: 70px; top: -6px; left: 28px; }
.cloud-a::before { width: 110px; height: 90px; left: 18px; top: -34px; }
.cloud-a::after { width: 130px; height: 90px; right: 22px; top: -26px; }
.cloud-b { width: 270px; height: 76px; right: 14px; top: 18px; opacity: .92; }
.cloud-b::before { width: 128px; height: 90px; left: 20px; top: -36px; }
.cloud-b::after { width: 140px; height: 90px; right: 24px; top: -28px; }
.cloud-c { width: 220px; height: 62px; left: 55px; bottom: 96px; opacity: .74; }
.cloud-c::before { width: 100px; height: 72px; left: 14px; top: -26px; }
.cloud-c::after { width: 114px; height: 78px; right: 18px; top: -20px; }
.hero-note {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 3;
  padding: 16px 18px;
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: 20px;
  color: #ffffff;
  background: rgba(20,48,71,0.34);
}
.hero-note-label {
  display: inline-block;
  margin-bottom: 5px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.72);
}

.quick-bar {
  justify-content: center;
  gap: 12px;
  margin: 14px auto 0;
  color: var(--muted);
  font-size: 13px;
}

.section {
  margin-top: 16px;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--line);
  border-radius: 32px;
  background: var(--paper-soft);
  box-shadow: 0 18px 56px rgba(39, 83, 132, 0.07);
}
.section-head { max-width: 760px; margin-bottom: 20px; }
.section-head.narrow { max-width: 620px; }
.intro {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 22px;
  align-items: center;
}

.learning-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.learn-card {
  position: relative;
  min-height: 210px;
  padding: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255,255,255,0.92), rgba(239,247,255,0.88));
  box-shadow: 0 16px 34px rgba(47,126,247,0.06);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.learn-card::before {
  content: "";
  position: absolute;
  inset: auto -40px -58px auto;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(115,199,255,0.28), transparent 68%);
}
.learn-card:hover {
  transform: translateY(-5px);
  border-color: rgba(47,126,247,0.18);
  box-shadow: 0 24px 44px rgba(47,126,247,0.12);
}
.learn-no {
  display: inline-flex;
  min-width: 44px;
  height: 32px;
  padding: 0 12px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: rgba(47,126,247,0.10);
  color: var(--blue);
  font-size: 13px;
}
.learn-card h3 { margin-top: 16px; }
.learn-card p { margin-top: 10px; color: var(--muted); font-size: 14px; }

.schedule-card,
.single-info-card,
.form-card {
  border: 1px solid var(--line);
  border-radius: 26px;
  background: rgba(255,255,255,0.78);
  box-shadow: 0 16px 40px rgba(39, 83, 132, 0.06);
}
.schedule-card { padding: 22px; }
.schedule-top {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  align-items: start;
}
.schedule-label {
  display: inline-block;
  margin-bottom: 10px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(47,126,247,0.10);
  color: var(--blue);
  font-size: 13px;
}
.countdown {
  display: grid;
  grid-template-columns: repeat(3, minmax(72px, 1fr));
  gap: 8px;
}
.countdown div {
  display: grid;
  gap: 2px;
  min-width: 78px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(180deg, #ffffff, #eef7ff);
  text-align: center;
}
.countdown span { font-size: 25px; letter-spacing: -0.04em; }
.countdown small { color: var(--muted); font-size: 12px; }
.schedule-line {
  height: 1px;
  margin: 20px 0 16px;
  background: linear-gradient(90deg, transparent, rgba(20,48,71,0.14), transparent);
}
.schedule-items {
  display: grid;
  gap: 10px;
}
.schedule-item {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 14px;
  align-items: start;
}
.schedule-item span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  border-radius: 999px;
  background: rgba(79,213,210,0.12);
  color: #208b96;
  font-size: 13px;
}
.schedule-item p { padding-top: 6px; }

.single-info-card {
  padding: 22px;
  background: linear-gradient(180deg, rgba(255,255,255,0.86), rgba(238,247,255,0.74));
}
.single-info-head { max-width: 760px; }
.check-list {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: grid;
  gap: 12px;
}
.check-list li {
  position: relative;
  padding: 0 0 0 34px;
  color: var(--muted);
}
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(47,126,247,0.14), rgba(79,213,210,0.18));
  color: var(--blue);
  font-size: 13px;
}
.contribution-card strong { color: var(--text); font-weight: 500; }

.cta {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 18px;
  align-items: start;
  background: linear-gradient(135deg, rgba(232,243,255,0.88), rgba(243,252,255,0.88));
}
.form-card {
  padding: 22px;
  background: linear-gradient(180deg, rgba(228,241,255,0.92), rgba(239,248,255,0.92));
}
.form-card label {
  display: grid;
  gap: 7px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 13px;
}
.form-card label:last-of-type { margin-bottom: 16px; }
input, select {
  width: 100%;
  min-height: 46px;
  padding: 0 14px;
  border: 1px solid rgba(20,48,71,0.10);
  border-radius: 14px;
  outline: none;
  color: var(--text);
  background: rgba(255,255,255,0.88);
}
input::placeholder { color: #7b8da0; }
input:focus, select:focus {
  border-color: rgba(47,126,247,0.38);
  box-shadow: 0 0 0 4px rgba(47,126,247,0.08);
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin: 16px auto 28px;
  padding: 18px 22px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255,255,255,0.72);
  color: var(--muted);
  font-size: 13px;
  box-shadow: 0 10px 32px rgba(39, 83, 132, 0.06);
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 18px;
  background: rgba(14, 28, 44, 0.42);
}
.modal-backdrop.show { display: flex; }
.marketing-modal {
  position: relative;
  width: min(920px, 100%);
  max-height: min(88vh, 860px);
  overflow: auto;
  padding: 24px;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 28px;
  background: rgba(252, 254, 255, 0.94);
  box-shadow: 0 30px 80px rgba(19, 38, 61, 0.24);
}
.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(255,255,255,0.82);
  cursor: pointer;
  font-size: 22px;
  line-height: 1;
}
.marketing-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 18px;
}
.marketing-list div {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255,255,255,0.9), rgba(238,247,255,0.82));
}
.marketing-list span {
  display: inline-flex;
  min-width: 38px;
  height: 28px;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
  border-radius: 999px;
  background: rgba(47,126,247,0.10);
  color: var(--blue);
  font-size: 13px;
}
.marketing-list p { margin-bottom: 5px; }
.marketing-list small { color: var(--muted); font-size: 13px; }
.modal-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 18px;
}

@media (max-width: 980px) {
  .hero,
  .intro,
  .cta,
  .schedule-top {
    grid-template-columns: 1fr;
  }

  .hero-visual { min-height: 480px; }
  .learning-grid { grid-template-columns: repeat(2, 1fr); }
  .marketing-list { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  body { font-size: 14px; }
  .nav { align-items: center; border-radius: 24px; }
  .nav-links { display: none; }
  .hero, .section { padding: 18px; border-radius: 26px; }
  h1 { font-size: clamp(28px, 8vw, 38px); }
  h2 { font-size: clamp(22px, 6vw, 28px); }
  .hero-visual { min-height: 390px; }
  .quick-bar { justify-content: flex-start; }
  .learning-grid { grid-template-columns: 1fr; }
  .schedule-item { grid-template-columns: 1fr; gap: 8px; }
  .countdown { grid-template-columns: repeat(3, 1fr); }
  .marketing-modal { padding: 18px; }
  .footer { flex-direction: column; }
}

/* Patch: materi inti dan jadwal dibuat 1 card sederhana dengan checklist */
.simple-card {
  position: relative;
  overflow: hidden;
}
.simple-card::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -90px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(115,199,255,0.24), transparent 68%);
  pointer-events: none;
}
.material-card,
.schedule-card-simple {
  background:
    linear-gradient(135deg, rgba(255,255,255,0.90), rgba(237,247,255,0.82)),
    radial-gradient(circle at 88% 0%, rgba(79,213,210,0.14), transparent 18rem);
}
.compact-check {
  position: relative;
  z-index: 1;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 18px;
  row-gap: 14px;
}
.compact-check li {
  min-height: 42px;
  display: flex;
  align-items: flex-start;
  line-height: 1.48;
}
.compact-check li::before {
  flex: 0 0 22px;
}
.compact-check strong {
  font-weight: 500;
  color: var(--text);
}
.schedule-simple-head {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  align-items: start;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.soft-countdown {
  min-width: 270px;
}
.schedule-check {
  margin-top: 18px;
}

@media (max-width: 880px) {
  .compact-check,
  .schedule-simple-head {
    grid-template-columns: 1fr;
  }

  .soft-countdown {
    width: 100%;
    min-width: 0;
  }
}

@media (max-width: 520px) {
  .soft-countdown {
    grid-template-columns: repeat(3, 1fr);
  }

  .countdown div {
    min-width: 0;
    padding: 12px 8px;
  }
}