/* Sainstri — sains, antariksa, dan rasa ingin tahu. */
:root {
  --theme-primary:#2563eb;
  --theme-primary-gradient:linear-gradient(110deg,#2563eb,#0284c7);
  --theme-secondary-gradient:linear-gradient(135deg,#60a5fa,#38bdf8);
  --theme-text-dark:#102b50;
  --theme-text-muted:#536b86;
  --theme-text-subtle:#61758e;
  --theme-border:#dce7f5;
  --theme-card-border:#dce7f5;
  --theme-card-shadow:0 10px 30px rgb(20 61 112 / 5%);
  --theme-pill-shadow:0 6px 20px rgb(37 99 235 / 12%);
  --theme-font-main:'Plus Jakarta Sans',system-ui,sans-serif;
  --theme-font-heading:'Poppins','Plus Jakarta Sans',sans-serif
}
body {
  background:radial-gradient(ellipse at 85% 3%,#e2efff 0,transparent 36%),linear-gradient(#f5f9ff,#fff 65%,#f5f9ff);
  min-height:100vh;
  color:var(--theme-text-dark)
}
.skip-link {
  position:fixed;
  top:10px;
  left:16px;
  z-index:1001;
  background:#fff;
  padding:12px 20px;
  border:2px solid #2563eb;
  border-radius:10px;
  transform:translateY(-150%)
}
.skip-link:focus {
  transform:none
}
.site-header {
  position:relative;
  z-index:30;
  padding:24px 0 14px
}
.nav-wrap {
  width:min(1200px,calc(100% - 48px));
  margin:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  min-height:52px
}
.brand {
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:none
}
.brand-mark {
  display:block;
  width:44px;
  height:44px;
  background:url('icon.png') center/contain no-repeat;
  border-radius:12px
}
.brand strong {
  display:block;
  font:800 23px/1.2 var(--theme-font-heading);
  letter-spacing:-1px;
  color:#102b50
}
.brand-dot,.heading-dot {
  color:#2563eb
}
.brand small {
  display:block;
  font-size:8px;
  font-weight:800;
  letter-spacing:1.4px;
  color:#536b86;
  margin-top:2px
}
.main-nav {
  display:flex;
  align-items:center;
  gap:30px;
  margin-left:auto
}
.main-nav a {
  position:relative;
  color:#536b86;
  font-size:13px;
  font-weight:600;
  padding:9px 0
}
.main-nav a:hover,.main-nav a.active {
  color:#1d4ed8
}
.main-nav a.active::after {
  content:'';
  position:absolute;
  bottom:1px;
  height:2px;
  border-radius:2px;
  left:0;
  right:0;
  background:#2563eb
}
.header-cta {
  display:inline-flex;
  gap:16px;
  align-items:center;
  border:1px solid #ccddf4;
  background:rgba(255,255,255,.8);
  border-radius:10px;
  padding:10px 16px;
  font-size:12px;
  font-weight:700;
  color:#1d4ed8
}
.header-cta:hover {
  background:#eff6ff
}
.menu-toggle {
  display:none;
  width:44px;
  height:44px;
  flex:none;
  border:1px solid #dce7f5;
  border-radius:12px;
  background:#fff;
  color:#102b50;
  font-size:21px
}
.hero {
  width:min(1200px,calc(100% - 48px));
  margin:22px auto 36px;
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:30px;
  align-items:center;
  min-height:470px
}
.hero-copy {
  padding:30px 0
}
.hero-copy .eyebrow {
  display:flex;
  align-items:center;
  gap:8px
}
.status-dot {
  display:inline-block;
  width:6px;
  height:6px;
  border-radius:50%;
  background:#2563eb;
  box-shadow:0 0 0 4px #dbeafe;
  flex:none
}
.hero h1 {
  font-size:clamp(36px,4.3vw,58px);
  font-weight:800;
  line-height:1.13;
  letter-spacing:-2.2px;
  margin:20px 0 24px
}
.highlight-blue {
  color:#2563eb
}
.hero-text {
  max-width:470px;
  font-size:14px;
  line-height:1.9;
  color:#536b86;
  margin:0 0 28px
}
.hero-actions {
  display:flex;
  align-items:center;
  gap:22px
}
.btn-jelajahi,.btn-hubungi {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:14px;
  font-size:13px;
  font-weight:700;
  padding:13px 18px;
  border-radius:12px;
  transition:transform .2s,background .2s
}
.btn-jelajahi {
  background:#2563eb;
  color:#fff;
  box-shadow:0 8px 24px rgb(37 99 235 / 18%)
}
.btn-jelajahi:hover {
  background:#1d4ed8;
  transform:translateY(-2px)
}
.btn-hubungi {
  color:#24466d;
  padding-inline:0
}
.btn-hubungi:hover {
  color:#2563eb
}
.btn-play-circle {
  font-size:12px
}
.hero-note {
  display:flex;
  align-items:center;
  gap:8px;
  font-size:11px;
  color:#61758e;
  margin-top:26px
}
.hero-note span {
  color:#2563eb
}
.hero-art-wrap {
  position:relative;
  text-align:center;
  min-width:0
}
.hero-main-illustration {
  display:block;
  width:100%;
  height:auto;
  max-width:560px;
  margin:auto;
  animation:scienceFloat 7s ease-in-out infinite
}
.art-caption {
  display:flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  font-size:8px;
  letter-spacing:1.3px;
  color:#536b86;
  margin-top:-8px;
  font-weight:700
}
@keyframes scienceFloat {
  50% {
    transform:translateY(-7px)
  }
}
.topics-section {
  width:min(1200px,calc(100% - 48px));
  margin:0 auto 66px;
  padding:26px 0;
  border-top:1px solid #dce7f5;
  border-bottom:1px solid #dce7f5;
  display:flex;
  align-items:center;
  gap:28px;
  scroll-margin-top:24px
}
.topics-intro {
  flex:none
}
.topics-intro .eyebrow {
  font-size:8px;
  margin-bottom:5px
}
.topics-intro h2 {
  font-size:16px;
  margin:0;
  letter-spacing:-.4px
}
.topic-links {
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:10px;
  flex:1
}
.topic-links a {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  font-size:10.5px;
  font-weight:700;
  padding:14px 12px;
  border-radius:12px;
  background:#fff;
  border:1px solid #dce7f5;
  transition:border-color .2s,transform .2s
}
.topic-links a>span:first-child {
  font-size:18px;
  color:#2563eb
}
.topic-links a>span:last-child {
  color:#61758e
}
.topic-links a:hover {
  border-color:#60a5fa;
  transform:translateY(-2px)
}
.gallery-section {
  width:min(1200px,calc(100% - 48px));
  margin:0 auto 66px;
  scroll-margin-top:28px
}
.gallery-header-row {
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:24px
}
.gallery-heading .eyebrow {
  font-size:9px;
  margin-bottom:7px
}
.gallery-heading h2 {
  font-size:29px;
  font-weight:700;
  letter-spacing:-1px;
  line-height:1.35;
  margin:0
}
.gallery-nav-controls {
  display:flex;
  align-items:center;
  gap:8px;
  flex:none
}
.gallery-video-counter {
  font-size:11px;
  font-weight:600;
  color:#61758e;
  margin-right:8px
}
.pag-arrow-btn {
  display:grid;
  place-items:center;
  width:38px;
  height:38px;
  border:1px solid #dce7f5;
  border-radius:10px;
  background:#fff;
  color:#1d4ed8;
  font-size:17px
}
.pag-arrow-btn:hover:enabled {
  background:#eff6ff;
  border-color:#93c5fd
}
.gallery-toolbar {
  display:flex;
  gap:14px;
  margin-bottom:26px
}
.search-pill {
  display:flex;
  align-items:center;
  gap:12px;
  flex:1;
  max-width:520px;
  padding:12px 16px;
  background:#fff;
  border:1px solid #dce7f5;
  border-radius:12px
}
.search-pill:focus-within,.filter-pill:focus-within {
  outline:2px solid #2563eb;
  outline-offset:2px
}
.search-pill svg {
  width:17px;
  height:17px;
  flex:none;
  stroke:#2563eb;
  stroke-width:2;
  fill:none
}
.search-pill input {
  min-width:0;
  width:100%;
  border:0;
  background:transparent;
  color:#102b50;
  font-size:12px;
  outline:none
}
.search-pill input::placeholder {
  color:#61758e
}
.filter-pill {
  position:relative;
  background:#fff;
  border:1px solid #dce7f5;
  border-radius:12px;
  display:flex;
  align-items:center;
  min-width:205px
}
.filter-pill select {
  width:100%;
  min-height:46px;
  border:0;
  background:transparent;
  padding:10px 35px 10px 16px;
  color:#405773;
  font-size:12px;
  font-weight:600;
  cursor:pointer;
  appearance:none;
  outline:none
}
.filter-pill::after {
  content:'⌄';
  position:absolute;
  right:15px;
  pointer-events:none;
  color:#2563eb
}
.video-grid {
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px
}
.video-card {
  display:flex;
  flex-direction:column;
  min-width:0;
  background:#fff;
  border:1px solid #dce7f5;
  border-radius:16px;
  overflow:hidden;
  box-shadow:var(--theme-card-shadow);
  transition:transform .25s,box-shadow .25s;
  cursor:pointer
}
.video-card:hover {
  transform:translateY(-4px);
  box-shadow:0 15px 30px rgb(20 61 112 / 10%)
}
.video-card:focus-visible {
  outline:3px solid #2563eb;
  outline-offset:4px
}
.thumbnail {
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:#e7f0fc
}
.thumbnail img {
  width:100%;
  height:100%;
  display:block;
  object-fit:cover;
  transition:transform .4s
}
.video-card:hover .thumbnail img {
  transform:scale(1.035)
}
.thumb-duration-pill {
  display:flex;
  align-items:center;
  gap:5px;
  position:absolute;
  bottom:10px;
  right:10px;
  z-index:2;
  background:rgba(9,30,66,.85);
  color:#fff;
  padding:3px 7px;
  border-radius:5px;
  font-size:10px;
  font-weight:700
}
.play-icon-tiny {
  font-size:8px
}
.card-info {
  display:flex;
  flex-direction:column;
  flex:1;
  padding:16px
}
.card-title-row {
  margin-bottom:16px
}
.card-info h3 {
  font-size:13px;
  font-weight:600;
  line-height:1.6;
  margin:0;
  color:#163455;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden
}
.card-meta-row {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  margin-top:auto;
  font-size:10px;
  color:#61758e
}
.card-date-wrap,.card-views-wrap {
  display:inline-flex;
  align-items:center;
  gap:5px
}
.card-views-wrap {
  color:#2563eb
}
.card-meta-row svg {
  width:13px;
  height:13px;
  stroke:currentColor;
  stroke-width:1.6;
  fill:none
}
.empty-state {
  padding:44px 20px;
  border:1px dashed #a9c7ec;
  border-radius:16px;
  text-align:center;
  color:#536b86;
  font-size:14px;
  background:#f8fbff
}
.social-strip-card {
  width:min(1200px,calc(100% - 48px));
  margin:0 auto 54px;
  border:1px solid #d3e3f8;
  border-radius:20px;
  padding:30px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  background:linear-gradient(110deg,#eaf3ff,#f0f9ff)
}
.social-strip-left {
  display:flex;
  align-items:center;
  gap:22px
}
.social-science-mark {
  display:grid;
  place-items:center;
  width:56px;
  height:56px;
  flex:none;
  border:1px solid #c8def8;
  background:#fff;
  color:#2563eb;
  border-radius:16px;
  font-size:30px
}
.social-copy .eyebrow {
  font-size:8px;
  margin-bottom:7px
}
.social-copy h2 {
  font-size:18px;
  font-weight:700;
  margin:0 0 7px;
  letter-spacing:-.5px
}
.social-copy p:last-child {
  font-size:11px;
  color:#536b86;
  margin:0
}
.social-buttons-list {
  display:flex;
  flex-wrap:wrap;
  justify-content:flex-end;
  gap:8px;
  max-width:330px
}
.social-pill-btn {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  padding:9px 12px;
  border:1px solid #d3e3f8;
  border-radius:9px;
  background:#fff;
  font-size:10px;
  font-weight:600;
  transition:transform .2s
}
.social-pill-btn:hover {
  transform:translateY(-2px)
}
.social-pill-btn svg {
  width:15px;
  height:15px
}
.site-footer {
  border-top:1px solid #dce7f5;
  padding:26px 0 32px
}
.footer-inner {
  width:min(1200px,calc(100% - 48px));
  margin:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px
}
.footer-brand {
  font:800 20px var(--theme-font-heading);
  letter-spacing:-1px
}
.footer-copy {
  color:#61758e;
  font-size:10px
}
.footer-heart,.footer-corner-heart {
  display:none
}
.footer-links {
  display:flex;
  gap:22px;
  color:#536b86;
  font-size:11px;
  font-weight:600
}
.footer-links a:hover {
  color:#2563eb
}
.modal {
  display:none;
  position:fixed;
  inset:0;
  z-index:1000;
  padding:20px;
  align-items:center;
  justify-content:center
}
.modal.open {
  display:flex
}
.modal-backdrop {
  position:absolute;
  inset:0;
  background:rgba(6,25,54,.8);
  backdrop-filter:blur(6px)
}
.modal-dialog {
  position:relative;
  width:min(840px,100%);
  padding:16px;
  background:#fff;
  border-radius:16px;
  box-shadow:0 24px 70px rgb(0 0 0 / 25%)
}
.modal-close {
  position:absolute;
  top:-14px;
  right:-10px;
  z-index:2;
  display:grid;
  place-items:center;
  width:40px;
  height:40px;
  border:0;
  border-radius:50%;
  background:#2563eb;
  color:#fff;
  font-size:24px
}
.video-frame {
  aspect-ratio:16/9;
  background:#102b50;
  overflow:hidden;
  border-radius:10px
}
.video-frame iframe {
  width:100%;
  height:100%;
  border:0
}
.modal-dialog h3 {
  font-size:14px;
  margin:16px 4px 4px
}
@media(max-width:1100px) {
  .video-grid {
    grid-template-columns:repeat(2,minmax(0,1fr))
  }
  .topics-section {
    display:block
  }
  .topic-links {
    margin-top:18px
  }
  .hero h1 {
    font-size:44px
  }
  .social-strip-card {
    align-items:flex-start;
    flex-direction:column
  }
  .social-buttons-list {
    max-width:none;
    justify-content:flex-start
  }
}
@media(max-width:960px) {
  .nav-wrap {
    gap:18px
  }
  .main-nav {
    gap:20px
  }
  .header-cta {
    padding:10px;
    font-size:11px
  }
  .hero {
    min-height:400px;
    gap:14px
  }
  .hero h1 {
    font-size:37px;
    letter-spacing:-1.7px
  }
  .hero-actions {
    gap:14px
  }
  .btn-jelajahi,.btn-hubungi {
    font-size:11px;
    gap:10px
  }
  .art-caption {
    font-size:6px
  }
  .gallery-heading h2 {
    font-size:25px
  }
}
@media(max-width:760px) {
  .site-header {
    padding:16px 0 8px
  }
  .nav-wrap {
    width:calc(100% - 32px);
    flex-wrap:wrap;
    gap:12px
  }
  .brand-mark {
    width:40px;
    height:40px
  }
  .brand strong {
    font-size:21px
  }
  .brand small {
    font-size:7px
  }
  .header-cta {
    margin-left:auto;
    padding:9px 10px;
    font-size:10px
  }
  .menu-toggle {
    display:grid;
    place-items:center
  }
  .main-nav {
    display:none;
    order:4;
    width:100%;
    margin:4px 0 0;
    padding:10px;
    background:#fff;
    border:1px solid #dce7f5;
    border-radius:14px;
    flex-direction:column;
    align-items:stretch;
    gap:2px
  }
  .main-nav.open {
    display:flex
  }
  .main-nav a {
    padding:10px 14px;
    font-size:13px
  }
  .main-nav a.active {
    background:#eff6ff;
    border-radius:8px
  }
  .main-nav a.active::after {
    display:none
  }
  .hero {
    width:calc(100% - 32px);
    margin:14px auto 28px;
    grid-template-columns:minmax(0,1fr);
    gap:0;
    min-height:0
  }
  .hero-copy {
    padding:24px 0 10px
  }
  .hero h1 {
    font-size:clamp(32px,8.7vw,44px);
    line-height:1.15;
    letter-spacing:-1.4px;
    margin:18px 0
  }
  .hero-copy .eyebrow {
    font-size:8px;
    letter-spacing:1.1px
  }
  .hero-text {
    font-size:12px;
    line-height:1.9;
    max-width:none;
    margin-bottom:22px
  }
  .hero-actions {
    gap:18px
  }
  .btn-jelajahi,.btn-hubungi {
    font-size:11px
  }
  .btn-jelajahi {
    padding:13px 14px
  }
  .hero-note {
    font-size:10px;
    margin-top:18px
  }
  .hero-art-wrap {
    max-width:360px;
    justify-self:center;
    width:100%;
    margin-top:-12px
  }
  .hero-main-illustration {
    max-height:275px
  }
  .art-caption {
    font-size:6px;
    margin-top:-3px
  }
  .topics-section {
    width:calc(100% - 32px);
    padding:22px 0;
    margin-bottom:36px
  }
  .topics-intro h2 {
    font-size:17px
  }
  .topic-links {
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:8px;
    margin-top:16px
  }
  .topic-links a {
    padding:12px 10px;
    font-size:10px
  }
  .gallery-section {
    width:calc(100% - 32px);
    margin-bottom:40px
  }
  .gallery-header-row {
    align-items:flex-start;
    flex-direction:column;
    gap:16px;
    margin-bottom:18px
  }
  .gallery-heading h2 {
    font-size:25px
  }
  .gallery-nav-controls {
    width:100%
  }
  .gallery-video-counter {
    margin-right:auto
  }
  .pag-arrow-btn {
    width:40px;
    height:40px
  }
  .gallery-toolbar {
    flex-direction:column;
    gap:10px;
    margin-bottom:20px
  }
  .search-pill {
    max-width:none;
    padding:13px 14px
  }
  .search-pill input {
    font-size:11px
  }
  .filter-pill {
    width:100%
  }
  .filter-pill select {
    font-size:12px
  }
  .video-grid {
    grid-template-columns:minmax(0,1fr);
    gap:18px
  }
  .card-info {
    padding:16px
  }
  .card-info h3 {
    font-size:14px
  }
  .card-meta-row {
    font-size:11px
  }
  .social-strip-card {
    width:calc(100% - 32px);
    padding:24px 20px;
    margin-bottom:36px;
    gap:20px
  }
  .social-strip-left {
    align-items:flex-start;
    gap:14px
  }
  .social-science-mark {
    width:40px;
    height:40px;
    border-radius:10px;
    font-size:22px
  }
  .social-copy h2 {
    font-size:17px
  }
  .social-copy p:last-child {
    line-height:1.8
  }
  .social-copy .eyebrow {
    line-height:1.7
  }
  .social-buttons-list {
    gap:7px
  }
  .social-pill-btn {
    font-size:10px
  }
  .footer-inner {
    width:calc(100% - 32px);
    flex-wrap:wrap;
    gap:16px
  }
  .footer-copy {
    font-size:9px
  }
  .footer-links {
    width:100%;
    justify-content:flex-start;
    gap:24px
  }
  .modal {
    padding:16px
  }
  .modal-dialog {
    padding:10px
  }
  .modal-dialog h3 {
    font-size:12px
  }
}
@media(max-width:370px) {
  .header-cta {
    display:none
  }
  .menu-toggle {
    margin-left:auto
  }
  .hero h1 {
    font-size:30px
  }
  .hero-actions {
    gap:12px
  }
  .btn-jelajahi,.btn-hubungi {
    font-size:10px
  }
  .art-caption {
    font-size:5px
  }
}
@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior:auto
  }
  *,*::before,*::after {
    animation:none!important;
    transition:none!important
  }
}