/* Agentic AI Hub — design tokens */
:root {
  --paper: #f4f7ff;
  --paper-strong: #edf3ff;
  --white: rgba(255, 255, 255, 0.75);
  --ink: #162033;
  --ink-soft: #52657f;
  --cobalt: #4d6bff;
  --indigo: #7168ff;
  --gold: #ffbb52;
  --mint: #7fe7c2;
  --sky: #b9d5ff;
  --line: rgba(22, 32, 51, 0.1);
  --shadow: 0 22px 48px rgba(65, 74, 118, 0.12);
  --radius: 26px;
  --display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --body: "Figtree", "Segoe UI", system-ui, sans-serif;
}
body.theme-dark {
  --paper: #091421;
  --paper-strong: #0d1c2d;
  --white: rgba(12, 18, 29, 0.72);
  --ink: #ebf4ff;
  --ink-soft: #9bb8d5;
  --cobalt: #5b7cff;
  --indigo: #7d6bff;
  --gold: #ffb968;
  --mint: #7df0d1;
  --sky: #a8c8ff;
  --line: rgba(177, 214, 255, 0.14);
  --shadow: 0 26px 60px rgba(14, 22, 38, 0.48);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(91, 124, 255, 0.18), transparent 24%),
    radial-gradient(circle at bottom right, rgba(125, 246, 209, 0.14), transparent 20%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper-strong) 100%);
  color: var(--ink);
  font: 400 1.0625rem/1.65 var(--body);
  -webkit-font-smoothing: antialiased;
}
body.theme-dark {
  background:
    radial-gradient(circle at top left, rgba(91, 124, 255, 0.26), transparent 24%),
    radial-gradient(circle at bottom right, rgba(125, 246, 209, 0.16), transparent 20%),
    linear-gradient(180deg, #091421 0%, #0d1b2d 52%, #0b1320 100%);
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--display); line-height: 1.1; letter-spacing: -0.025em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.5rem, 6.2vw, 4.75rem); font-weight: 800; letter-spacing: -0.04em; line-height: 1.02; }
h2 { font-size: clamp(1.75rem, 3.4vw, 2.5rem); font-weight: 700; }
h3 { font-size: 1.3rem; font-weight: 700; letter-spacing: -0.02em; }
p { margin: 0 0 1em; }
:focus-visible { outline: 3px solid var(--sky); outline-offset: 3px; border-radius: 4px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--ink); color: #08131d; padding: .6rem 1rem; z-index: 100; }
.skip:focus { left: 0; }
.wrap { width: min(1160px, 100% - 2.5rem); margin-inline: auto; }
.narrow { width: min(760px, 100% - 2.5rem); }
.muted { color: var(--ink-soft); font-size: .95rem; }
.lede { font-size: clamp(1.1rem, 1.6vw, 1.3rem); color: var(--ink-soft); max-width: 40em; }

/* nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 10px 30px rgba(23, 27, 51, 0.04);
}
body.theme-dark .nav {
  background: rgba(11, 19, 32, 0.72);
  box-shadow: 0 16px 32px rgba(7, 12, 20, 0.28);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 4.5rem; }
.brand { display: flex; align-items: center; gap: .6rem; text-decoration: none; font: 800 1.2rem var(--display); letter-spacing: -.03em; }
.menu { display: flex; align-items: center; gap: .35rem; }
.menu a:not(.btn) {
  text-decoration: none; padding: .55rem .82rem; border-radius: 999px; font-weight: 600; font-size: .98rem; color: var(--ink);
  transition: background .15s ease, transform .15s ease, border-color .15s ease;
  border: 1px solid transparent;
}
.menu a:not(.btn):hover { background: rgba(255,255,255,0.1); border-color: rgba(167, 197, 255, 0.18); transform: translateY(-1px); }
body.theme-dark .menu a:not(.btn):hover { background: rgba(255,255,255,0.04); }
.menu a[aria-current="page"] { background: linear-gradient(135deg, rgba(91,124,255,.2), rgba(125,107,255,.18)); border-color: rgba(168, 200, 255, 0.26); color: var(--ink); }
body.theme-dark .menu a[aria-current="page"] { color: #fff; }
.nav-toggle { display: none; font: 600 1rem var(--body); background: rgba(17,25,39,.9); border: 1px solid var(--line); border-radius: 999px; padding: .45rem 1rem; box-shadow: 0 8px 18px rgba(7, 12, 20, 0.22); cursor: pointer; color: var(--ink); }
.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center; appearance: none; background: rgba(255,255,255,0.12); border: 1px solid var(--line); border-radius: 999px; color: var(--ink); width: 2.5rem; height: 2.5rem; padding: .5rem; font: 600 .92rem var(--body); cursor: pointer; transition: transform .12s ease, background .12s ease;
}
.theme-toggle:hover { transform: translateY(-1px); }
body.theme-dark .theme-toggle { background: rgba(17,25,39,.9); }
.theme-toggle__icon { display: inline-flex; align-items: center; justify-content: center; width: 1.2rem; height: 1.2rem; }

/* buttons & links */
.btn {
  display: inline-block; background: linear-gradient(135deg, var(--cobalt), var(--indigo));
  color: #fff; font: 700 1rem var(--body); text-decoration: none; padding: .9rem 1.55rem; border: 1px solid rgba(160, 189, 255, 0.28);
  border-radius: 999px; box-shadow: 0 16px 30px rgba(91,124,255,0.35); cursor: pointer; transition: transform .12s ease, box-shadow .12s ease, filter .12s ease;
}
.btn:hover { transform: translate(-2px,-2px); box-shadow: 0 22px 36px rgba(91,124,255,0.42); filter: brightness(1.06); }
.btn:active { transform: translate(0,0); box-shadow: 0 10px 18px rgba(91,124,255,0.25); }
.btn-small { padding: .48rem 1.15rem; font-size: .95rem; margin-left: .5rem; }
.btn-ghost { background: rgba(11,19,32,0.75); color: var(--ink); box-shadow: 0 12px 22px rgba(7, 12, 20, 0.2); }
.btn-gold { background: linear-gradient(135deg, #ffd894, var(--gold)); color: #1a1a1a; box-shadow: 0 12px 24px rgba(255, 185, 104, 0.28); }
.link { font-weight: 700; text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 4px; text-decoration-color: var(--sky); }
.link:hover { background: rgba(125, 246, 209, 0.1); text-decoration-color: var(--ink); }
.back { font-weight: 600; font-size: .95rem; display: inline-block; margin-bottom: 1rem; color: var(--ink-soft); }
.actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 1.75rem; }

/* hero */
.hero {
  position: relative; padding: clamp(2.75rem, 7vw, 5.5rem) 0; border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,0.5), rgba(228,235,255,0.96));
}
body.theme-dark .hero {
  background: linear-gradient(180deg, rgba(10,17,28,0.74), rgba(17,26,40,0.9));
}
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 3rem; align-items: center; }
.hero-copy h1 { margin-bottom: .4em; }
.hero-visual {
  background: linear-gradient(145deg, rgba(255,255,255,0.9), rgba(222, 228, 255, 0.82));
  border: 1px solid rgba(23, 27, 51, 0.1); border-radius: 30px; box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,0.2);
  padding: 1rem; aspect-ratio: 1; display: grid; place-items: center; overflow: hidden;
}
body.theme-dark .hero-visual {
  background: linear-gradient(145deg, rgba(17,27,42,0.92), rgba(14,22,34,0.82));
  border-color: rgba(177,214,255,0.12);
}
.hero-img { width: 100%; height: 100%; object-fit: cover; border-radius: 22px; }
.loop { width: 100%; height: auto; }
.loop-core { font: 800 28px var(--display); fill: #fff; letter-spacing: -1px; }
.loop-sub { font: 500 11px var(--body); fill: #DCE0FF; }
.loop .node rect { fill: rgba(125, 240, 209, 0.78); stroke: rgba(255,255,255,0.54); stroke-width: 2.5; }
.loop .node text { font: 700 15px var(--body); fill: #0a1823; }

/* sections */
.section { padding: clamp(3rem, 7vw, 5rem) 0; }
.section-white {
  background: rgba(255,255,255,0.42);
  border-block: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.03);
}
body.theme-dark .section-white {
  background: rgba(12, 18, 29, 0.4);
}
.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; margin-bottom: 1.75rem; flex-wrap: wrap; }
.section-head h2 { margin: 0; }
.gap-top { margin-top: 3.5rem; }
.story-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: 3rem; align-items: start; }
.prose { max-width: 40em; }
.prose p { margin-bottom: 1.1em; }
.prose.article { font-size: 1.15rem; line-height: 1.8; max-width: 38em; }
.prose.article h2 { margin-top: 1.8em; }
.page-head { padding: clamp(2.5rem, 6vw, 4.5rem) 0 2rem; border-bottom: 1px solid var(--line); background: rgba(255,255,255,0.35); }
body.theme-dark .page-head { background: rgba(16, 24, 38, 0.7); }
.page-head h1 { font-size: clamp(2.2rem, 5vw, 3.75rem); margin-bottom: .3em; }
.page-head .lede { margin-bottom: 0; }
.page-head .chips { margin: 1rem 0 0; }
.empty { grid-column: 1 / -1; padding: 2rem; border: 1px dashed rgba(177,214,255,0.18); border-radius: var(--radius); color: var(--ink-soft); text-align: center; }
.banner { width: 100%; max-height: 420px; object-fit: cover; border: 1px solid rgba(177,214,255,0.12); border-radius: var(--radius); margin-bottom: 2rem; box-shadow: var(--shadow); }

/* cards */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 1.75rem; align-items: stretch; }
.card {
  background: rgba(255,255,255,0.8); border: 1px solid rgba(23,27,51,0.08); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column; transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
  box-shadow: 0 18px 38px rgba(7,12,20,0.08);
}
body.theme-dark .card {
  background: rgba(15, 23, 37, 0.82); border-color: rgba(177,214,255,0.12); box-shadow: 0 18px 38px rgba(7,12,20,0.18);
}
.section-white .card { background: rgba(247, 250, 255, 0.9); }
body.theme-dark .section-white .card { background: rgba(14, 21, 32, 0.9); }
.card:hover { transform: translate(-3px,-3px); box-shadow: 0 20px 40px rgba(91,124,255,0.16); border-color: rgba(125,107,255,0.28); }
.card-media { display: block; aspect-ratio: 16/9; border-bottom: 1px solid rgba(177,214,255,0.12); overflow: hidden; position: relative; }
.card-media img, .card-media .ph { width: 100%; height: 100%; object-fit: cover; }
.card-body { padding: 1.25rem 1.35rem 1.4rem; display: flex; flex-direction: column; flex: 1; }
.card-body h3 { margin-bottom: .4em; }
.card-body h3 a { text-decoration: none; }
.card-body h3 a:hover { text-decoration: underline; text-decoration-thickness: 2px; }
.card-body > .link { margin-top: auto; align-self: flex-start; }
.card-body > p:not(.chips):not(.muted) { color: var(--ink-soft); }
.chips { display: flex; flex-wrap: wrap; gap: .4rem; margin: 0 0 .8rem; }
.chip { display: inline-block; background: linear-gradient(135deg, rgba(255,185,104,.65), rgba(255,185,104,.92)); border: 1px solid rgba(255,255,255,0.1); border-radius: 999px; padding: .08rem .72rem; font-size: .85rem; font-weight: 700; color: #1d1d1d; }
.chip-soft { background: rgba(125, 240, 209, 0.12); color: var(--ink); border-color: rgba(125,240,209,0.25); font-weight: 600; }

/* placeholders (when no image has been uploaded) */
.ph { min-height: 100%; }
.ph-1 { background: radial-gradient(circle at 20% 30%, var(--gold) 0 14%, transparent 15%), radial-gradient(circle at 78% 70%, var(--mint) 0 22%, transparent 23%), var(--cobalt); }
.ph-2 { background: repeating-linear-gradient(135deg, var(--gold) 0 18px, #FFC85A 18px 36px); }
.ph-3 { background: radial-gradient(circle at 80% 25%, var(--cobalt) 0 18%, transparent 19%), radial-gradient(circle at 25% 75%, var(--white) 0 12%, transparent 13%), var(--mint); }
.ph-4 { background: radial-gradient(circle at 50% 50%, transparent 0 24%, var(--cobalt) 25% 27%, transparent 28% 44%, var(--gold) 45% 47%, transparent 48%), var(--ink); }

/* events */
.event-top { display: flex; align-items: stretch; justify-content: space-between; border-bottom: 2px solid var(--line); }
.datebox { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 1rem 1.6rem; background: var(--gold); border-right: 2px solid var(--line); font-family: var(--display); line-height: 1; }
.datebox .d { font-size: 2.6rem; font-weight: 800; letter-spacing: -.04em; }
.datebox .m { font-size: 1rem; font-weight: 700; margin-top: .25rem; }
.event-top .thumb { flex: 1; min-height: 96px; max-height: 120px; overflow: hidden; }
.event-top .thumb img, .event-top .thumb .ph { width: 100%; height: 100%; object-fit: cover; }

/* media */
.media-grid { grid-auto-flow: dense; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); align-items: start; }
.media-card.landscape { grid-column: span 2; }
.media-card.portrait .card-media { aspect-ratio: 9/14; }
.media-card.landscape .card-media { aspect-ratio: 16/9; }
.play { position: absolute; left: 50%; top: 50%; width: 58px; height: 58px; margin: -29px 0 0 -29px; background: var(--white); border: 2px solid var(--line); border-radius: 50%; }
.play::after { content: ""; position: absolute; left: 22px; top: 15px; border-style: solid; border-width: 11px 0 11px 18px; border-color: transparent transparent transparent var(--ink); }
.platform { position: absolute; left: .75rem; top: .75rem; background: var(--white); border: 2px solid var(--line); border-radius: 999px; padding: .05rem .65rem; font-size: .8rem; font-weight: 700; }
.filters { display: flex; gap: .5rem; margin: 1.5rem 0 0; }
.filters a { text-decoration: none; font-weight: 600; border: 2px solid var(--line); border-radius: 999px; padding: .3rem 1rem; background: var(--paper); }
.filters a[aria-current] { background: var(--ink); color: #fff; }
.player { position: relative; border: 2px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--ink); margin-bottom: 2rem; box-shadow: 6px 6px 0 var(--gold); }
.player.landscape { aspect-ratio: 16/9; }
.player.portrait { aspect-ratio: 9/16; max-width: 360px; margin-inline: auto; }
.player iframe, .player img, .player .ph { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; object-fit: cover; }

/* detail pages */
.detail-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 3rem; align-items: start; }
.topics { list-style: none; padding: 0; margin: 1.5rem 0 0; counter-reset: t; }
.topics li { position: relative; padding: 0 0 1.4rem 3.2rem; counter-increment: t; border-left: 2px solid rgba(177,214,255,0.14); margin-left: 1rem; }
.topics li::before { content: counter(t); position: absolute; left: -1rem; top: 0; width: 2rem; height: 2rem; border-radius: 50%; background: linear-gradient(135deg, #ffd894, var(--gold)); border: 1px solid rgba(255,255,255,0.1); color: #1d1d1d; font: 800 .95rem/1.8rem var(--display); text-align: center; }
.topics li:last-child { border-left-color: transparent; }
.topics h3 { font-size: 1.15rem; margin: 0 0 .2em; padding-top: .15rem; }
.topics p { color: var(--ink-soft); margin: 0; }
.factbox {
  position: sticky; top: 6rem; background: rgba(15, 23, 37, 0.82); border: 1px solid rgba(177,214,255,0.12);
  border-radius: var(--radius); box-shadow: 0 18px 42px rgba(12,18,28,0.32); padding: 1.5rem;
}
.factbox dt { font-weight: 700; font-size: .9rem; color: var(--ink-soft); margin-top: 1rem; }
.factbox dt:first-child { margin-top: 0; }
.factbox dd { margin: .15rem 0 0; font-weight: 600; }
.factbox .btn { margin-top: 1.5rem; width: 100%; text-align: center; }
.ticks { list-style: none; margin: .3rem 0 0; padding: 0; }
.ticks li { position: relative; padding-left: 1.6rem; margin-bottom: .35rem; font-weight: 500; }
.ticks li::before { content: ""; position: absolute; left: 0; top: .5em; width: .9rem; height: .5rem; border-left: 3px solid var(--sky); border-bottom: 3px solid var(--sky); transform: rotate(-45deg) translateY(-50%); }
.ticks.big li { font-size: 1.1rem; margin-bottom: .6rem; }

/* about */
.two-up { display: grid; grid-template-columns: 1fr 1fr; gap: 1.75rem; }
.panel {
  border: 1px solid rgba(177,214,255,0.12); border-radius: 24px; padding: clamp(1.5rem, 4vw, 2.75rem); font-size: 1.15rem;
  box-shadow: 0 12px 34px rgba(7,12,20,0.2);
}
.panel h2 { margin-bottom: .5em; }
.panel p { margin: 0; }
.panel-blue { background: linear-gradient(135deg, rgba(91,124,255,0.95), rgba(96,93,255,0.9)); color: #fff; box-shadow: 0 20px 36px rgba(91,124,255,0.22); }
.panel-gold { background: linear-gradient(135deg, rgba(255,185,104,0.9), rgba(255,185,104,0.73)); color: #141414; box-shadow: 0 18px 32px rgba(255,185,104,0.18); }
.values .card-body p { margin: 0; }
.values .card:hover, .team .member:hover { transform: none; box-shadow: none; }
.grid.team { grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }
.member h3 { margin: 1rem 0 .1em; font-size: 1.2rem; }
.member .role { font-weight: 600; color: var(--sky); margin-bottom: .6rem; }
.member p { font-size: .98rem; }
.avatar { width: 100%; aspect-ratio: 1; border: 1px solid rgba(177,214,255,0.12); border-radius: var(--radius); overflow: hidden; display: grid; place-items: center; background: rgba(125, 240, 209, 0.16); }
.member:nth-child(2n) .avatar { background: rgba(255,185,104,0.16); }
.member:nth-child(3n) .avatar { background: rgba(132, 156, 255, 0.18); }
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar span { font: 800 3.5rem var(--display); letter-spacing: -.04em; }

/* newsletter */
.join {
  background: linear-gradient(135deg, rgba(91,124,255,0.9), rgba(43,55,95,0.96)); color: #fff; border-block: 1px solid rgba(255,255,255,0.12);
  padding: clamp(3rem, 7vw, 5rem) 0;
}
.join-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.join h2 { color: #fff; }
.join-copy p { color: #e5f1ff; font-size: 1.15rem; max-width: 30em; }
.join-form {
  background: rgba(9, 17, 28, 0.86); color: var(--ink); border: 1px solid rgba(177,214,255,0.12); border-radius: 20px;
  box-shadow: 0 18px 34px rgba(7,12,20,0.26); padding: 1.5rem; display: grid; gap: 1rem;
}
.join-form label { display: grid; gap: .3rem; font-weight: 600; font-size: .95rem; }
.join-form input[type=text], .join-form input[type=email] { font: 400 1rem var(--body); padding: .7rem .9rem; border: 1px solid rgba(177,214,255,0.12); border-radius: 10px; background: rgba(13, 22, 35, 0.94); color: var(--ink); }
.join-form .check { display: flex; align-items: center; gap: .6rem; font-weight: 500; }
.join-form .check input { width: 1.2rem; height: 1.2rem; accent-color: var(--cobalt); }
.flash { padding: .75rem 1rem; border: 1px solid rgba(177,214,255,0.12); border-radius: 12px; font-weight: 600; margin-bottom: 1rem; }
.flash-success { background: rgba(125, 240, 209, 0.12); color: var(--ink); }
.flash-error { background: rgba(255, 130, 130, 0.18); color: var(--ink); }

/* footer */
.footer {
  background: linear-gradient(180deg, rgba(8,13,19,1), rgba(5,10,16,1)); color: #D8DAF5; padding: 3.5rem 0 1.5rem;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08);
}
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 2.5rem; }
.footer a { text-decoration: none; }
.footer a:hover { text-decoration: underline; color: #fff; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: .4rem; }
.footer-brand { font: 800 1.5rem var(--display); color: #fff; margin-bottom: .3rem; letter-spacing: -.03em; }
.footer-head { font-weight: 700; color: #fff; margin-bottom: .7rem; }
.socials { display: flex; flex-wrap: wrap; gap: .5rem 1.2rem; margin-top: 1rem !important; }
.footer-base { border-top: 1px solid rgba(216,218,245,0.12); margin-top: 2.5rem; padding-top: 1.25rem; font-size: .9rem; }
.footer-base p { margin: 0; }

/* responsive */
@media (max-width: 900px) {
  .hero-grid, .story-grid, .detail-grid, .two-up, .join-inner { grid-template-columns: 1fr; gap: 2rem; }
  .hero-visual { max-width: 460px; }
  .factbox { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > :first-child { grid-column: 1 / -1; }
}
@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .menu { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: stretch; background: var(--paper); border-bottom: 2px solid var(--line); padding: .75rem 1.25rem 1.25rem; }
  .menu.open { display: flex; }
  .menu a:not(.btn) { padding: .7rem .8rem; }
  .btn-small { margin: .5rem 0 0; text-align: center; }
}
@media (max-width: 640px) {
  .media-card.landscape { grid-column: span 1; }
  .grid, .media-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}