:root {
  --ink: #102033;
  --muted: #637083;
  --line: #dfe5ec;
  --surface: #ffffff;
  --surface-soft: #f5f8fc;
  --blue: #0a326d;
  --blue-2: #0e4c9a;
  --blue-3: #dbe9fb;
  --gold: #d4a62a;
  --navy: #071c36;
  --shadow: 0 18px 50px rgba(15, 42, 78, .10);
  --radius: 20px;
  --utility-height: 42px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 125px; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background: var(--surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
body.nav-open { overflow: hidden; }
a { color: inherit; }
img { display: block; max-width: 100%; }
button, input { font: inherit; }
.wrap { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 8px; left: 8px; transform: translateY(-160%); padding: 10px 14px; border-radius: 9px; background: #fff; color: var(--blue); z-index: 9999; font-weight: 800; }
.skip-link:focus { transform: none; }

.utility-bar {
  position: sticky;
  top: 0;
  z-index: 1200;
  background: var(--navy);
  color: #dce6f2;
  border-bottom: 1px solid rgba(255,255,255,.10);
}
.utility-bar__inner { min-height: var(--utility-height); display: flex; align-items: center; justify-content: space-between; gap: 22px; font-size: 12px; letter-spacing: .02em; }
.utility-bar__label { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.utility-bar__links { display: flex; align-items: center; gap: 4px; }
.utility-bar__links a { display: inline-flex; align-items: center; gap: 7px; min-height: 42px; padding: 0 12px; color: #fff; text-decoration: none; font-weight: 700; border-left: 1px solid rgba(255,255,255,.10); transition: background .2s ease, color .2s ease; }
.utility-bar__links a:hover, .utility-bar__links a:focus-visible { background: rgba(255,255,255,.09); outline: none; }
.utility-bar__icon { width: 16px; height: 16px; flex: 0 0 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; opacity: .92; }
.utility-bar__icon--facebook { fill: currentColor; stroke: none; }
.utility-bar__external { margin-left: -2px; font-size: 10px; line-height: 1; opacity: .65; transform: translateY(-1px); }
.utility-bar__links a:hover .utility-bar__icon, .utility-bar__links a:focus-visible .utility-bar__icon { opacity: 1; }

.brand-bar { background: #fff; border-bottom: 1px solid var(--line); }
.brand-bar__inner { min-height: 108px; display: flex; align-items: center; justify-content: flex-start; }
.brand-bar__logo { display: inline-flex; align-items: center; }
.brand-bar__logo img { width: auto; max-width: min(560px, 80vw); max-height: 70px; object-fit: contain; object-position: left center; }

.primary-nav-shell {
  position: sticky;
  top: var(--utility-height);
  z-index: 1100;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 8px 26px rgba(20, 42, 72, .05);
  backdrop-filter: blur(16px);
}
.primary-nav { min-height: 66px; display: flex; align-items: center; gap: 26px; }
.primary-nav__brand { flex: 0 0 auto; text-decoration: none; color: var(--blue); font-weight: 900; letter-spacing: .05em; font-size: 15px; }
.primary-nav__brand span { color: var(--gold); }
.primary-nav__menu { list-style: none; display: flex; align-items: stretch; justify-content: flex-end; gap: 2px; padding: 0; margin: 0 0 0 auto; }
.primary-nav__menu li { margin: 0; }
.primary-nav__menu a { position: relative; display: flex; align-items: center; min-height: 66px; padding: 0 14px; text-decoration: none; color: #304158; font-size: 14px; font-weight: 750; }
.primary-nav__menu a::after { content: ""; position: absolute; left: 14px; right: 14px; bottom: 0; height: 3px; background: var(--blue-2); transform: scaleX(0); transform-origin: center; transition: transform .2s ease; }
.primary-nav__menu a:hover, .primary-nav__menu a:focus-visible, .primary-nav__menu a.is-active { color: var(--blue); outline: none; }
.primary-nav__menu a:hover::after, .primary-nav__menu a:focus-visible::after, .primary-nav__menu a.is-active::after { transform: scaleX(1); }
.nav-toggle { display: none; width: 44px; height: 44px; padding: 10px; border: 1px solid var(--line); border-radius: 12px; background: #fff; cursor: pointer; }
.nav-toggle > span:not(.sr-only) { display: block; height: 2px; margin: 5px 0; background: var(--blue); border-radius: 2px; transition: transform .2s ease, opacity .2s ease; }

.hero { position: relative; overflow: hidden; background: linear-gradient(135deg, #f7faff 0%, #edf4fd 48%, #f8fbff 100%); border-bottom: 1px solid #e4ebf3; }
.hero::before { content: ""; position: absolute; width: 520px; height: 520px; border-radius: 50%; right: -140px; top: -210px; background: radial-gradient(circle, rgba(14,76,154,.15), rgba(14,76,154,0) 67%); pointer-events: none; }
.hero__grid { position: relative; display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(330px, .68fr); gap: 74px; align-items: center; min-height: 650px; padding-block: 70px; }
.eyebrow, .section-kicker { display: inline-block; margin: 0 0 14px; color: var(--blue-2); font-size: 12px; line-height: 1.2; font-weight: 900; letter-spacing: .13em; text-transform: uppercase; }
.hero h1 { max-width: 760px; margin: 0; color: var(--navy); font-size: clamp(46px, 6.6vw, 82px); line-height: .98; letter-spacing: -.055em; }
.hero h1 span { color: var(--blue-2); }
.hero__theme { margin: 24px 0 0; color: var(--blue); font-size: clamp(18px, 2vw, 24px); font-weight: 800; }
.hero__copy { max-width: 680px; margin: 18px 0 0; color: #516278; font-size: 17px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 19px; border: 1px solid transparent; border-radius: 12px; text-decoration: none; font-size: 14px; font-weight: 850; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--blue); color: #fff; box-shadow: 0 12px 28px rgba(10,50,109,.22); }
.btn--primary:hover { background: #062b61; }
.btn--soft { border-color: #cbd8e9; background: rgba(255,255,255,.72); color: var(--blue); }
.btn--light { background: #fff; color: var(--blue); }
.hero__meta { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; margin-top: 34px; }
.hero__meta div { padding: 14px 16px; border: 1px solid rgba(10,50,109,.11); border-radius: 13px; background: rgba(255,255,255,.62); }
.hero__meta span, .hero__meta strong { display: block; }
.hero__meta span { color: #748196; font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.hero__meta strong { margin-top: 3px; color: var(--navy); font-size: 14px; }

.poster-shell { position: relative; display: grid; place-items: center; }
.poster-glow { position: absolute; inset: 10% -5%; border-radius: 40px; background: rgba(14,76,154,.16); filter: blur(45px); transform: rotate(-5deg); }
.poster-card { position: relative; width: min(100%, 390px); padding: 0; border: 0; border-radius: 20px; overflow: hidden; background: #fff; box-shadow: 0 34px 70px rgba(7,28,54,.22); transform: rotate(1.5deg); cursor: zoom-in; transition: transform .25s ease, box-shadow .25s ease; }
.poster-card:hover { transform: rotate(0deg) translateY(-5px); box-shadow: 0 38px 78px rgba(7,28,54,.27); }
.poster-card img { width: 100%; aspect-ratio: 4 / 5.45; object-fit: cover; object-position: top center; }
.poster-card__caption { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 13px 15px; color: var(--ink); font-size: 12px; }
.poster-card__caption span { color: var(--muted); }
.poster-card__caption strong { color: var(--blue); }

.deadline-band { background: var(--blue); color: #fff; }
.deadline-band__inner { min-height: 104px; display: grid; grid-template-columns: minmax(240px,1fr) auto auto; gap: 34px; align-items: center; }
.deadline-band .section-kicker { margin-bottom: 5px; color: #bdd8ff; }
.deadline-band strong { display: block; font-size: 18px; }
.deadline-band__timer { min-width: 200px; padding: 12px 16px; border: 1px solid rgba(255,255,255,.22); border-radius: 12px; background: rgba(255,255,255,.08); text-align: center; font-variant-numeric: tabular-nums; font-weight: 850; letter-spacing: .04em; }
.deadline-band a { color: #fff; font-size: 13px; font-weight: 850; text-decoration: none; white-space: nowrap; }

.section { padding: 84px 0; scroll-margin-top: 125px; }
.section--white { background: #fff; }
.section--tint { background: var(--surface-soft); border-block: 1px solid #e8edf3; }
.section--dark { background: var(--navy); color: #dbe7f5; }
.section-head { display: grid; grid-template-columns: minmax(0,1.1fr) minmax(280px,.75fr); gap: 52px; align-items: end; margin-bottom: 38px; }
.section-head h2, .split-layout h2, .feature-panel h2, .contact-band h2 { margin: 0; color: var(--navy); font-size: clamp(32px, 4vw, 52px); line-height: 1.05; letter-spacing: -.035em; }
.section-lead { margin: 0; color: var(--muted); font-size: 16px; }
.section-head--dark h2 { color: #fff; }
.section-head--dark .section-kicker { color: #94c3ff; }
.section-head--dark .section-lead { color: #aebdce; }

.info-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; }
.info-card { min-height: 158px; display: flex; align-items: flex-start; gap: 15px; padding: 23px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: 0 8px 24px rgba(20,45,80,.04); }
.info-card__icon { flex: 0 0 auto; display: grid; place-items: center; width: 42px; height: 42px; border-radius: 12px; background: var(--blue-3); color: var(--blue); font-size: 19px; }
.info-card small { display: block; color: var(--muted); font-size: 11px; font-weight: 900; text-transform: uppercase; letter-spacing: .08em; }
.info-card strong { display: block; margin-top: 7px; color: var(--navy); line-height: 1.35; }

.split-layout { display: grid; grid-template-columns: minmax(280px,.78fr) minmax(0,1.22fr); gap: 74px; align-items: start; }
.prose-card { padding: 34px 38px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); }
.prose-card p:first-child { margin-top: 0; }
.prose-card p { color: #536276; font-size: 16px; }
.text-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 8px; color: var(--blue); font-weight: 850; text-decoration: none; }

.card-grid { display: grid; gap: 16px; }
.card-grid--4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
.theme-card { min-height: 280px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease; }
.theme-card:hover { transform: translateY(-5px); border-color: #c4d4e8; box-shadow: var(--shadow); }
.theme-card > span { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; border-radius: 13px; background: var(--blue); color: #fff; font-weight: 900; font-size: 12px; }
.theme-card h3 { margin: 28px 0 12px; color: var(--navy); font-size: 20px; line-height: 1.25; }
.theme-card p { margin: 0; color: var(--muted); font-size: 14px; }

.timeline { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; counter-reset: timeline; }
.timeline-item { position: relative; min-height: 250px; padding: 25px; border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius); background: rgba(255,255,255,.055); overflow: hidden; }
.timeline-item::before { content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 3px; background: #416b99; }
.timeline-item.is-past { opacity: .60; }
.timeline-item.is-next { border-color: rgba(212,166,42,.72); background: rgba(212,166,42,.11); }
.timeline-item.is-next::before { background: var(--gold); }
.timeline-item__date { display: inline-block; padding: 6px 9px; border-radius: 9px; background: rgba(255,255,255,.10); color: #dbe7f5; font-size: 12px; font-weight: 850; }
.timeline-item small { display: block; margin-top: 28px; color: #7fa9da; font-weight: 900; }
.timeline-item h3 { margin: 7px 0 10px; color: #fff; font-size: 19px; line-height: 1.25; }
.timeline-item p { margin: 0; color: #aebdce; font-size: 13px; }
.timeline-item.is-next::after { content: "SETERUSNYA"; position: absolute; right: 16px; top: 18px; color: #f1cb68; font-size: 10px; font-weight: 900; letter-spacing: .09em; }

.feature-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 20px; align-items: stretch; }
.feature-panel { padding: 40px; border-radius: 24px; }
.feature-panel--speaker { background: #f4f8fd; border: 1px solid #dce7f3; }
.feature-panel--publication { background: linear-gradient(145deg, var(--blue), #071f46); color: #eaf3ff; box-shadow: 0 24px 60px rgba(7,31,70,.20); }
.feature-panel--publication h2 { color: #fff; }
.feature-panel--publication .section-kicker { color: #a8d1ff; }
.feature-panel--publication p { color: #c5d6ea; }
.speaker-name { margin: 24px 0 10px; color: var(--blue); font-size: 20px; font-weight: 850; line-height: 1.35; }
.fee-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; margin-top: 28px; }
.fee-grid div { padding: 18px; border: 1px solid rgba(255,255,255,.14); border-radius: 14px; background: rgba(255,255,255,.08); }
.fee-grid small, .fee-grid strong { display: block; }
.fee-grid small { color: #a9c1dc; }
.fee-grid strong { margin-top: 4px; color: #fff; font-size: 25px; }

.resource-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px; }
.resource-card { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 20px; padding: 25px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; text-decoration: none; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.resource-card:hover { transform: translateY(-4px); border-color: #bccde2; box-shadow: var(--shadow); }
.resource-card__icon { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 15px; background: var(--blue-3); color: var(--blue); font-size: 26px; font-weight: 900; }
.resource-card small { color: var(--blue-2); font-size: 11px; font-weight: 900; letter-spacing: .09em; }
.resource-card h3 { margin: 2px 0 4px; color: var(--navy); font-size: 18px; }
.resource-card p { margin: 0; color: var(--muted); font-size: 13px; }
.resource-card > strong { color: var(--blue); font-size: 13px; white-space: nowrap; }

.contact-band { padding: 64px 0; background: var(--blue-2); color: #fff; }
.contact-band__inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.contact-band .section-kicker { color: #c6ddfb; }
.contact-band h2 { color: #fff; }
.contact-band p { margin-bottom: 0; color: #d7e5f6; }

.footer { padding: 26px 0; background: #041326; color: #8fa3bb; }
.footer__inner { display: flex; align-items: center; justify-content: space-between; gap: 22px; font-size: 12px; }
.footer p { margin: 0; }

.poster-modal { position: fixed; inset: 0; z-index: 3000; display: grid; place-items: center; padding: 34px; background: rgba(3,13,28,.90); backdrop-filter: blur(14px); }
.poster-modal[hidden] { display: none; }
.poster-modal img { max-width: min(92vw, 900px); max-height: 88vh; object-fit: contain; border-radius: 14px; box-shadow: 0 32px 90px rgba(0,0,0,.40); }
.poster-modal__close { position: fixed; top: 20px; right: 24px; width: 48px; height: 48px; border: 1px solid rgba(255,255,255,.22); border-radius: 50%; background: rgba(255,255,255,.10); color: #fff; font-size: 30px; cursor: pointer; }

@media (max-width: 1020px) {
  .hero__grid { grid-template-columns: 1fr .62fr; gap: 40px; min-height: 590px; }
  .hero h1 { font-size: clamp(46px, 7vw, 68px); }
  .info-grid, .card-grid--4, .timeline { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .primary-nav__menu a { padding-inline: 10px; font-size: 13px; }
}

@media (max-width: 820px) {
  :root { --utility-height: 46px; }
  html { scroll-padding-top: 112px; }
  .wrap { width: min(100% - 28px, 1180px); }
  .utility-bar__label { display: none; }
  .utility-bar__inner { justify-content: flex-end; }
  .utility-bar__links { width: 100%; justify-content: flex-end; }
  .utility-bar__links a { min-height: 46px; padding-inline: 11px; border-left: 0; }
  .brand-bar__inner { min-height: 88px; }
  .brand-bar__logo img { max-height: 58px; max-width: min(620px, 88vw); }
  .primary-nav { min-height: 64px; }
  .nav-toggle { display: block; margin-left: auto; }
  .primary-nav__menu { position: fixed; top: calc(var(--utility-height) + 64px); left: 0; right: 0; max-height: calc(100vh - var(--utility-height) - 64px); overflow: auto; display: none; padding: 12px 14px 24px; background: rgba(255,255,255,.99); border-bottom: 1px solid var(--line); box-shadow: 0 24px 40px rgba(12,35,64,.14); }
  .primary-nav__menu.is-open { display: block; }
  .primary-nav__menu a { min-height: 49px; padding: 0 10px; border-bottom: 1px solid #edf1f5; }
  .primary-nav__menu a::after { display: none; }
  .hero__grid { grid-template-columns: 1fr; gap: 46px; padding-block: 56px; }
  .hero__content { order: 1; }
  .poster-shell { order: 2; }
  .poster-card { max-width: 440px; transform: none; }
  .hero__meta { grid-template-columns: 1fr 1fr 1fr; }
  .deadline-band__inner { grid-template-columns: 1fr auto; gap: 16px; padding-block: 18px; }
  .deadline-band__inner > a { grid-column: 1 / -1; }
  .section { padding: 66px 0; }
  .section-head, .split-layout { grid-template-columns: 1fr; gap: 22px; }
  .feature-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  :root { --utility-height: 44px; }
  .utility-bar__links { justify-content: space-between; gap: 0; }
  .utility-bar__links a { flex: 1; justify-content: center; min-height: 44px; padding-inline: 6px; font-size: 11px; }
  .brand-bar__inner { min-height: 78px; }
  .brand-bar__logo img { max-height: 52px; max-width: 90vw; }
  .primary-nav__brand { font-size: 13px; }
  .hero__grid { padding-block: 44px 52px; }
  .hero h1 { font-size: clamp(41px, 13vw, 58px); }
  .hero__meta { grid-template-columns: 1fr; }
  .hero__meta div { padding: 12px 14px; }
  .hero__actions .btn { width: 100%; }
  .deadline-band__inner { grid-template-columns: 1fr; }
  .deadline-band__timer { min-width: 0; text-align: left; }
  .info-grid, .card-grid--4, .timeline, .fee-grid, .resource-grid { grid-template-columns: 1fr; }
  .timeline-item { min-height: 220px; }
  .prose-card, .feature-panel { padding: 27px 24px; }
  .resource-card { grid-template-columns: auto 1fr; gap: 15px; }
  .resource-card > strong { grid-column: 2; }
  .contact-band__inner, .footer__inner { align-items: flex-start; flex-direction: column; }
  .contact-band .btn { width: 100%; }
  .section-head h2, .split-layout h2, .feature-panel h2, .contact-band h2 { font-size: clamp(30px, 10vw, 42px); }
  .poster-modal { padding: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}