/* H-AI TEAM — haiteam.fr */
:root {
  --bg: #0f1b3d;          /* bleu nuit */
  --bg-alt: #16254f;
  --ink: #f3f1ea;
  --ink-2: #c9cde0;
  --muted: #8f97b8;
  --line: #2a3a6a;
  --accent: #ff6a3d;      /* corail */
  --accent-ink: #ffb199;
  --accent-2: #5ee0c5;    /* turquoise */
  --card: #182b5c;
  --radius: 8px;
  --wrap: 1120px;
  --font: "Helvetica Neue", Helvetica, Inter, -apple-system, "Segoe UI", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--font); font-size: 17px; line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration-color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: 3px; }
a:hover { color: var(--accent-ink); }
::selection { background: var(--accent-2); color: #0f1b3d; }
img { max-width: 100%; display: block; }
h1, h2, h3 { font-weight: 700; letter-spacing: -0.015em; line-height: 1.15; margin: 0 0 .5rem; }
h1 { font-size: clamp(1.9rem, 3.4vw, 2.8rem); }
h2 { font-size: clamp(1.35rem, 2.2vw, 1.8rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1rem; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 clamp(1rem, 3vw, 2rem); }
.narrow { max-width: 760px; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 85%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: .6rem; text-decoration: none; font-weight: 800; letter-spacing: .02em; font-size: 1.2rem; }
.brand-mark { width: 14px; height: 14px; background: var(--accent); border-radius: 2px; transform: rotate(45deg); box-shadow: 10px -10px 0 -4px var(--accent-2); }
.main-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: clamp(.6rem, 1.6vw, 1.4rem); align-items: center; }
.main-nav a { text-decoration: none; font-weight: 500; font-size: .95rem; padding: .35rem 0; border-bottom: 2px solid transparent; }
.main-nav a.active, .main-nav a:hover { border-bottom-color: var(--accent); color: var(--ink); }
.main-nav .lang a { font-family: var(--mono); font-size: .8rem; color: var(--muted); border: 1px solid var(--line); border-radius: 4px; padding: .2rem .45rem; }
.main-nav .lang a:hover { color: var(--ink); border-color: var(--ink); }
.nav-toggle, .nav-burger { display: none; }
@media (max-width: 820px) {
  .nav-burger { display: block; width: 36px; height: 36px; position: relative; cursor: pointer; }
  .nav-burger span, .nav-burger span::before, .nav-burger span::after { content: ""; position: absolute; left: 6px; width: 24px; height: 2px; background: var(--ink); transition: .2s; }
  .nav-burger span { top: 17px; } .nav-burger span::before { top: -7px; left: 0; } .nav-burger span::after { top: 7px; left: 0; }
  .main-nav ul { display: none; position: absolute; left: 0; right: 0; top: 64px; background: var(--bg); border-bottom: 1px solid var(--line); flex-direction: column; align-items: stretch; padding: .5rem 1.25rem 1rem; gap: 0; }
  .main-nav ul li a { display: block; padding: .7rem 0; font-size: 1.05rem; border-bottom: 1px solid var(--line); }
  .main-nav .lang { padding-top: .8rem; }
  .nav-toggle:checked ~ ul { display: flex; }
}

/* Hero */
.hero { padding: clamp(3rem, 8vw, 6rem) 0 clamp(2rem, 5vw, 4rem); border-bottom: 1px solid var(--line);
  background:
    radial-gradient(1000px 520px at 88% -20%, color-mix(in srgb, var(--accent-2) 32%, transparent), transparent 70%),
    radial-gradient(800px 420px at 0% 115%, color-mix(in srgb, var(--accent) 34%, transparent), transparent 70%),
    linear-gradient(180deg, #13214a 0%, var(--bg) 100%); }
.hero-kicker { font-family: var(--mono); font-size: .85rem; color: var(--accent-ink); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 1.2rem; }
.hero-title { font-size: clamp(1.7rem, 3.6vw, 3rem); max-width: 22ch; font-weight: 800; margin-bottom: 1.4rem; }
.hero-lead { max-width: 62ch; font-size: 1.1rem; color: var(--ink-2); }
.hero-lead p { margin-bottom: .8rem; }
.hero-actions { margin-top: 1.5rem; display: flex; gap: .7rem; flex-wrap: wrap; }
.btn { display: inline-block; background: var(--accent); color: #fff; text-decoration: none; padding: .65rem 1.1rem; border-radius: var(--radius); font-weight: 600; font-size: .95rem; border: 1px solid var(--accent); }
.btn:hover { background: #ff855f; border-color: #ff855f; color: #fff; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: var(--card); border-color: var(--accent-2); color: var(--ink); }

/* Sections */
.home-section { padding: clamp(2rem, 5vw, 3.5rem) 0; }
.home-section.alt { background: var(--bg-alt); }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; margin-bottom: 1.4rem; }
.section-head h2 { margin: 0; }
.more { font-size: .95rem; text-decoration: none; color: var(--accent-ink); font-weight: 600; }
.h-section { margin: 2.5rem 0 1rem; padding-top: .5rem; border-top: 3px solid var(--accent-2); display: inline-block; }
.h-section.past { border-top-color: var(--line); color: var(--muted); }

/* Events */
.event-list { display: grid; gap: 1rem; }
.event-card { display: grid; grid-template-columns: 84px 1fr; gap: 1.2rem; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem 1.2rem; }
.event-card.has-image { grid-template-columns: 84px 1fr 150px; }
.event-list.past .event-card { background: transparent; }
.event-list.past .event-date { color: var(--muted); }
.event-date { display: flex; flex-direction: column; align-items: center; justify-content: center; border-right: 1px solid var(--line); padding-right: 1rem; text-align: center; line-height: 1; }
.event-date .d { font-size: 2.1rem; font-weight: 800; letter-spacing: -0.03em; }
.event-date .m { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; margin-top: .35rem; color: var(--accent-2); font-weight: 700; }
.event-date .y { font-family: var(--mono); font-size: .75rem; color: var(--muted); margin-top: .3rem; }
.event-kind { font-family: var(--mono); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-bottom: .3rem; }
.event-card h3 { margin-bottom: .3rem; }
.event-card h3 a { text-decoration: none; }
.event-card h3 a:hover { text-decoration: underline; }
.event-meta { color: var(--ink-2); font-size: .95rem; margin-bottom: .4rem; }
.event-summary { color: var(--ink-2); font-size: .95rem; margin: 0; }
.event-thumb img { width: 100%; aspect-ratio: 1 / 1.3; object-fit: cover; border-radius: 4px; }
@media (max-width: 640px) {
  .event-card, .event-card.has-image { grid-template-columns: 64px 1fr; }
  .event-thumb { display: none; }
  .event-date .d { font-size: 1.6rem; }
}
.event-facts { display: grid; grid-template-columns: max-content 1fr; gap: .35rem 1.2rem; margin: 1.2rem 0 0; font-size: .98rem; }
.event-facts dt { color: var(--muted); font-family: var(--mono); font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; padding-top: .15rem; }
.event-facts dd { margin: 0; }
.event-poster img { max-height: 560px; width: auto; border-radius: var(--radius); border: 1px solid var(--line); margin: 1.5rem 0; }

/* News */
.news-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.2rem; }
.news-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; }
.news-thumb img { aspect-ratio: 16/9; object-fit: cover; width: 100%; }
.news-body { padding: 1rem 1.2rem 1.2rem; }
.news-date { font-family: var(--mono); font-size: .78rem; color: var(--muted); margin-bottom: .4rem; }
.news-card h3 a { text-decoration: none; }
.news-card h3 a:hover { text-decoration: underline; }
.news-body p:last-child { margin: 0; color: var(--ink-2); font-size: .95rem; }

/* Axes */
.axes-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 1rem; }
.axis-card { display: flex; flex-direction: column; gap: .4rem; text-decoration: none; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem 1.2rem 1.2rem; min-height: 150px; transition: transform .15s, border-color .15s; }
.axis-card:hover { transform: translateY(-2px); border-color: var(--accent); color: var(--ink); }
.axis-num { font-family: var(--mono); font-size: .78rem; color: var(--accent-ink); text-transform: uppercase; letter-spacing: .08em; }
.axis-title { font-weight: 700; font-size: 1.05rem; line-height: 1.25; }
.axis-lead { color: var(--muted); font-size: .88rem; margin-top: auto; }
.axes-list { display: grid; gap: 1.5rem; }
.axis-row { display: grid; grid-template-columns: 110px 1fr; gap: 1.2rem; padding-top: 1.2rem; border-top: 1px solid var(--line); }
.axis-row-num { font-family: var(--mono); color: var(--accent-ink); font-size: .9rem; text-transform: uppercase; letter-spacing: .08em; padding-top: .3rem; }
.axis-row h2 { font-size: 1.3rem; }
.axis-row h2 a { text-decoration: none; }
.axis-row h2 a:hover { text-decoration: underline; }
.axis-row-lead { color: var(--ink-2); font-size: .95rem; }
@media (max-width: 640px) { .axis-row { grid-template-columns: 1fr; gap: .3rem; } }

/* Pages */
.page { padding: clamp(2rem, 5vw, 3.5rem) clamp(1rem, 3vw, 2rem); }
.page-head { margin-bottom: 1.8rem; }
.kicker { font-family: var(--mono); font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--accent-ink); margin-bottom: .6rem; }
.subtitle { font-size: 1.15rem; color: var(--ink-2); }
.prose { font-size: 1.05rem; }
.prose p, .prose ul, .prose ol { margin-bottom: 1.1rem; }
.prose h2 { margin-top: 2.2rem; font-size: 1.45rem; }
.prose h3 { margin-top: 1.6rem; }
.prose blockquote { margin: 1.4rem 0; padding: .2rem 0 .2rem 1.2rem; border-left: 3px solid var(--accent); color: var(--ink-2); }
.prose .lead { font-size: 1.2rem; color: var(--ink-2); }
.prose img { border-radius: var(--radius); }
.prose table { border-collapse: collapse; width: 100%; font-size: .95rem; }
.prose td, .prose th { border-bottom: 1px solid var(--line); padding: .5rem .6rem; text-align: left; vertical-align: top; }
.intro { max-width: 70ch; color: var(--ink-2); }
.back { margin-top: 2.5rem; font-size: .95rem; }
.plain-list { padding-left: 1.2rem; }
.plain-list li { margin-bottom: .4rem; }

/* Team */
.people-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 460px), 1fr)); gap: 1.2rem; }
.person { display: grid; grid-template-columns: 88px 1fr; gap: 1rem; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem; }
.person-photo img, .person-photo .initials { width: 88px; height: 88px; border-radius: 50%; object-fit: cover; }
.person-photo .initials { display: grid; place-items: center; background: linear-gradient(135deg, var(--accent-2), var(--accent)); color: #0f1b3d; font-weight: 800; font-size: 1.5rem; letter-spacing: .02em; }
.person h3 { margin-bottom: .15rem; }
.person h3 a { text-decoration: none; }
.person h3 a:hover { text-decoration: underline; }
.person-role { color: var(--accent-ink); font-size: .9rem; font-weight: 600; margin-bottom: .15rem; }
.person-aff { color: var(--muted); font-size: .88rem; margin-bottom: .6rem; }
.person-bio { font-size: .95rem; color: var(--ink-2); margin: 0; }
.members-cols { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1.5rem 2rem; }
.members-lab h3 { font-size: 1.05rem; margin-bottom: .1rem; }
.members-lab ul { padding-left: 1.1rem; margin: .6rem 0 0; }
.members-lab li { margin-bottom: .3rem; }

/* Subscribe */
.subscribe { background: linear-gradient(120deg, #1d3a7a 0%, #0f1b3d 55%, #2a1f4f 100%); color: var(--ink); padding: clamp(2.5rem, 6vw, 4rem) clamp(1rem, 3vw, 2rem); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.subscribe-inner { max-width: 720px; margin: 0 auto; text-align: center; }
.subscribe h2 { color: inherit; }
.subscribe p { color: var(--ink-2); }
.subscribe-form { display: flex; gap: .6rem; flex-wrap: wrap; justify-content: center; margin-top: 1.4rem; }
.subscribe-form input { flex: 1 1 200px; padding: .75rem .9rem; border-radius: var(--radius); border: 1px solid transparent; font: inherit; font-size: 1rem; background: #fff; color: #111; }
.subscribe-form button { padding: .75rem 1.3rem; border-radius: var(--radius); border: 0; background: var(--accent); color: #fff; font: inherit; font-weight: 700; cursor: pointer; }
.subscribe-form button:hover { background: var(--accent-ink); }

/* Footer */
.site-footer { padding: 2.5rem 0 2rem; border-top: 1px solid var(--line); background: #0b1430; font-size: .9rem; color: var(--ink-2); }
.partners-strip { display: flex; flex-wrap: wrap; align-items: center; gap: 1.2rem 2rem; margin-bottom: 1.4rem; }
.partners-strip img { height: 44px; width: auto; max-width: 160px; object-fit: contain; }
.partners-divider { width: 1px; height: 36px; background: var(--line); }
.partners-strip a { background: #fff; border-radius: 6px; padding: .5rem .8rem; display: inline-flex; align-items: center; }
.funding-note { max-width: 70ch; color: var(--muted); }
.footer-meta { display: flex; flex-wrap: wrap; gap: .5rem 1.4rem; padding-top: 1rem; border-top: 1px solid var(--line); }
.footer-meta a { text-decoration: none; color: var(--ink-2); }
.footer-meta a:hover { color: var(--accent-ink); }
::selection { background: var(--accent-2); color: #0f1b3d; }