/* ============================================================
   Synanthra - styles.v3.css
   Responsive design system for the v3 visual identity.
   Self-hosted Inter. No external requests. No tracking.
   ============================================================ */

/* ---------- Self-hosted fonts ---------- */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('fonts/inter-latin.v1.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('fonts/inter-latin-ext.v1.woff2') format('woff2');
  unicode-range: U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* ---------- Design tokens ---------- */
:root {
  --green-900: #0E5C2E;
  --green-800: #13703A;
  --green-700: #1B7A3D;
  --green-600: #3E9A4E;
  --green-500: #58B142;
  --green-400: #9BCB56;
  --green-300: #C4E08A;
  --gold: #E0982E;
  --gold-light: #E8B14f;
  --ink: #16261A;
  --body: #3a4a3d;
  --muted: #4a5a4e;
  --muted-2: #6B7D62;
  --line: #E3EAD9;
  --line-2: #E8ECE5;
  --tint: #F4F7EF;
  --photo-bg: #EAF0E3;
  --footer-bg: #122017;
  --footer-text: #9fb3a3;
  --footer-head: #cfe6cf;
  --hero-grad: linear-gradient(108deg,#9FD27A 0%,#C7E6A6 30%,#E2F1D2 60%,#F4FAEC 100%);
  --panel-grad: linear-gradient(135deg,#0E5C2E 0%,#13703A 55%,#1B7A3D 100%);
  --cta-grad: linear-gradient(110deg,#1B7A3D 0%,#3E9A4E 55%,#58B142 100%);
  --maxw: 1080px;
  --font: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

/* ---------- Reset ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  background: #fff;
  color: var(--body);
  line-height: 1.6;
}
img { max-width: 100%; }
sub { font-size: .7em; }

/* ---------- Accessibility ---------- */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 1000;
  background: var(--green-700); color: #fff; padding: 10px 18px;
  border-radius: 0 0 8px 0; font: 600 14px var(--font); text-decoration: none;
}
.skip-link:focus { left: 0; }
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--green-500); outline-offset: 2px; border-radius: 4px;
}

/* ---------- Page shell ---------- */
/* Full-bleed: colored section bands span the full viewport width; inner content
   is centered via .container / per-section max-widths. This is what makes the
   site fluid instead of a fixed-width centered block. */
.page { width: 100%; background: #fff; }
/* Gold bar stays pinned at the very top, as part of the sticky header */
.topbar { height: 4px; background: linear-gradient(90deg, var(--gold), var(--gold-light)); position: sticky; top: 0; z-index: 101; }
.container { max-width: var(--maxw); margin: 0 auto; }

/* ---------- Navigation (sticky, full-bleed bar, content centered to 1280) ---------- */
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px max(24px, calc((100% - 1280px) / 2));
  position: sticky; top: 4px; z-index: 100;
  background: rgba(255,255,255,.95);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .25s, border-color .25s;
}
.nav.scrolled { border-bottom-color: var(--line); box-shadow: 0 2px 14px rgba(14,92,46,.08); }
.nav__logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.nav__logo img { border-radius: 50%; }
.nav__logo span { font: 700 22px var(--font); color: var(--green-900); letter-spacing: -.01em; }
.nav__links { display: flex; align-items: center; gap: 34px; }
.nav__link { font: 500 15px var(--font); color: var(--body); text-decoration: none; position: relative; padding: 4px 0; }
.nav__link::after {
  content: ''; position: absolute; left: 0; bottom: -4px; height: 2px; width: 0;
  background: var(--green-700); transition: width .25s;
}
.nav__link:hover { color: var(--green-900); }
.nav__link:hover::after, .nav__link.active::after { width: 100%; }
.nav__link.active { font-weight: 600; color: var(--green-900); }
.nav__contact {
  font: 600 14px var(--font); color: var(--ink); background: var(--gold);
  padding: 10px 20px; border-radius: 999px; text-decoration: none;
}
.nav__contact:hover { background: var(--gold-light); }
.nav__toggle {
  display: none; flex-direction: column; gap: 5px; background: none; border: 0;
  cursor: pointer; padding: 8px;
}
.nav__toggle span { width: 24px; height: 2px; background: var(--green-900); transition: .25s; }
.nav__toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.open span:nth-child(2) { opacity: 0; }
.nav__toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Decorative bubbles ---------- */
.bubbles { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.bubble { position: absolute; border-radius: 50%; pointer-events: none; }
@keyframes driftA { from { transform: translate(0,0); } to { transform: translate(14px,-18px); } }
@keyframes driftB { from { transform: translate(0,0); } to { transform: translate(-16px,12px); } }
@keyframes driftC { from { transform: translate(0,0) scale(1); } to { transform: translate(11px,15px) scale(1.07); } }
@keyframes driftD { from { transform: translate(0,0); } to { transform: translate(-11px,-13px); } }

/* ---------- Hero / page headers ---------- */
.hero { position: relative; overflow: hidden; background: var(--hero-grad); }
.hero--home { height: 600px; }
.hero--header { min-height: 340px; }
.hero--header.about { min-height: 360px; }
.hero__inner {
  position: absolute; inset: 0; display: flex; align-items: center;
  justify-content: center; padding: 0 48px;
}
.hero__home-grid {
  display: flex; align-items: center; gap: 72px; max-width: var(--maxw); width: 100%;
}
.hero__lockup { flex: none; display: flex; align-items: center; gap: 22px; }
.hero__lockup img { border-radius: 50%; box-shadow: 0 12px 34px rgba(14,92,46,.22); }
.hero__lockup span { font: 700 46px var(--font); color: var(--green-900); letter-spacing: -.02em; }
.hero__copy { flex: 1; min-width: 0; }
.hero__center {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; text-align: center; padding: 0 48px;
}

/* ---------- Eyebrow / headings ---------- */
.eyebrow { font: 600 12px var(--font); letter-spacing: .14em; color: var(--gold); margin-bottom: 14px; }
.eyebrow--green { color: var(--green-900); }
.eyebrow--ondark { color: var(--green-300); }
.kicker {
  display: inline-flex; align-items: center; gap: 14px; flex-wrap: wrap;
  font: 600 12px var(--font); letter-spacing: .14em; color: var(--green-900); margin-bottom: 24px;
}
.kicker .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--gold); display: inline-block; }
h1, h2, h3 { color: var(--ink); }
.h1 { font: 700 56px/1.06 var(--font); letter-spacing: -.025em; }
.h1--header { font: 700 52px/1.08 var(--font); letter-spacing: -.025em; }
.h1--about { font: 700 50px/1.1 var(--font); letter-spacing: -.025em; }
.title-green { color: var(--green-900); }
.title-bright { color: var(--green-500); }
.lede { font: 400 19px/1.6 var(--font); color: var(--body); }

/* ---------- Sections ---------- */
.section { padding: 96px 48px; background: #fff; }
.section--tint { background: var(--tint); }
.section--pad-sm { padding: 84px 48px; }
.section-head { font: 700 40px/1.12 var(--font); letter-spacing: -.02em; }
.section-sub { font: 400 18px/1.7 var(--font); color: var(--muted); }

/* Section intro blocks are centred (matching the previous site).
   The card grids and feature columns below them keep their own alignment. */
.eyebrow, .section-head, .section-sub { text-align: center; }
.section-head, .section-sub { margin-left: auto; margin-right: auto; }
/* Keep the science split and story columns left-aligned (they read as body copy). */
.split .eyebrow, .story .eyebrow { text-align: left; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font: 600 16px var(--font); border-radius: 999px; text-decoration: none;
  padding: 15px 30px; transition: transform .15s, background .2s, box-shadow .2s; cursor: pointer;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { color: #fff; background: var(--green-700); }
.btn--primary:hover { background: var(--green-800); }
.btn--gold { color: var(--ink); background: var(--gold); }
.btn--gold:hover { background: var(--gold-light); }
.btn--outline { color: var(--green-900); background: transparent; border: 1.5px solid var(--green-700); padding: 13.5px 28px; }
.btn--outline:hover { background: rgba(27,122,61,.08); }
.btn--outline-light { color: #fff; border: 1.5px solid rgba(255,255,255,.7); background: transparent; padding: 13.5px 30px; }
.btn--outline-light:hover { background: rgba(255,255,255,.12); }
.btn-row { display: flex; gap: 16px; margin-top: 34px; flex-wrap: wrap; }
.btn-row--center { justify-content: center; }

/* ---------- Grids ---------- */
.grid { display: grid; gap: 28px; }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Cards ---------- */
.card {
  position: relative; overflow: hidden; background: #fff;
  border: 1px solid var(--line); border-radius: 16px; padding: 36px;
}
.card h3 { position: relative; font: 600 23px/1.3 var(--font); color: var(--green-900); margin-bottom: 14px; }
.card p { position: relative; font: 400 16px/1.7 var(--font); color: var(--muted); }
.card .blob { position: absolute; top: -26px; right: -26px; width: 96px; height: 96px; border-radius: 50%; background: #EAF4DE; }
.card .blob-sm { position: absolute; top: 18px; right: 34px; width: 30px; height: 30px; border-radius: 50%; }

.problem-card { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 34px; }
.problem-card img { display: block; margin-bottom: 18px; width: 92px; height: 92px; }
.problem-card h3 { font: 600 22px/1.3 var(--font); color: var(--green-900); margin-bottom: 12px; }
.problem-card p { font: 400 16px/1.7 var(--font); color: var(--muted); }
/* Problem card header: icon sits beside the title */
.problem-card__head { display: flex; align-items: center; gap: 16px; margin-bottom: 12px; }
.problem-card__head img { margin-bottom: 0; width: 60px; height: 60px; flex: none; }
.problem-card__head h3 { margin-bottom: 0; }

/* ---------- Green panel (roadmap / economics) ---------- */
.panel-green { position: relative; overflow: hidden; background: var(--panel-grad); padding: 96px 48px; }
.panel-green .container { position: relative; }
.panel-green .section-head { color: #fff; }
.panel-green .section-sub { color: #cfe6cf; }
.glass-card {
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.16);
  border-radius: 16px; padding: 30px; backdrop-filter: blur(2px);
}
.glass-card img { margin-bottom: 18px; width: 88px; height: 88px; }
.glass-card .tag { font: 600 12px var(--font); letter-spacing: .12em; color: var(--green-400); margin-bottom: 8px; }
.glass-card h3 { font: 600 20px/1.3 var(--font); color: #fff; margin-bottom: 12px; }
/* Stage card header: icon sits beside the tag + title */
.glass-card__head { display: flex; align-items: center; gap: 18px; margin-bottom: 14px; }
.glass-card__head img { margin-bottom: 0; width: 60px; height: 60px; flex: none; }
.glass-card__head .tag { margin-bottom: 4px; }
.glass-card__head h3 { margin-bottom: 0; }
.glass-card p { font: 400 15px/1.65 var(--font); color: #d4e8d4; }
.glass-card--lg { padding: 36px; }
.glass-card--lg h3 { font-size: 22px; line-height: 1.3; }
.glass-card--lg p { font-size: 16px; line-height: 1.75; color: #cfe6cf; }

/* ---------- Science split ---------- */
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.split h2 { font: 700 36px/1.14 var(--font); letter-spacing: -.02em; margin-bottom: 24px; }
.split p { font: 400 17px/1.8 var(--font); color: var(--body); margin-bottom: 18px; }
.split p.muted { color: var(--muted); }
.split img { display: block; width: 100%; border-radius: 12px; box-shadow: 0 8px 30px rgba(0,0,0,.1); }

/* ---------- Value columns ---------- */
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; }
.values .rule { height: 3px; width: 48px; background: var(--gold); margin-bottom: 22px; }
.values h3 { font: 600 21px/1.3 var(--font); color: var(--green-900); margin-bottom: 12px; }
.values p { font: 400 16px/1.75 var(--font); color: var(--muted); }

/* ---------- Story ---------- */
.story { max-width: 820px; margin: 0 auto; }
.story h2 { font: 700 36px/1.14 var(--font); letter-spacing: -.02em; margin-bottom: 24px; }
.story p { font: 400 17px/1.8 var(--font); color: var(--body); margin-bottom: 18px; }
.story p.muted { color: var(--muted); }

/* ---------- Partners ---------- */
.partners { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 44px; }
.partners img { height: 64px; width: auto; object-fit: contain; opacity: .8; filter: grayscale(.3); transition: .2s; }
.partners img:hover { opacity: 1; filter: grayscale(0); }
.center { text-align: center; }

/* ---------- Founders ---------- */
.founders { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.founder-card {
  display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line);
  border-radius: 14px; overflow: hidden; box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
.founder-card__photo { position: relative; height: 380px; overflow: hidden; background: var(--photo-bg); }
.founder-card__photo img { position: absolute; left: 50%; bottom: 0; transform: translateX(-50%); height: 92%; width: auto; display: block; }
.founder-card__photo img.full { height: 100%; }
.founder-card__body { padding: 34px 36px 38px; }
.founder-card__body h3 { font: 700 26px/1.2 var(--font); letter-spacing: -.01em; margin-bottom: 5px; }
.role { font: 600 14px var(--font); letter-spacing: .04em; color: var(--gold); margin-bottom: 20px; }
.founder-card__body p { font: 400 16px/1.75 var(--font); color: var(--body); margin-bottom: 16px; }
.founder-card__body p.muted { color: var(--muted); margin-bottom: 24px; }

/* ---------- Advisors ---------- */
.advisor-grid { display: grid; gap: 24px; margin-bottom: 52px; }
.sub-head { font: 600 18px var(--font); color: var(--green-900); margin-bottom: 22px; }
.advisor-card {
  background: #fff; border: 1px solid var(--line-2); border-radius: 12px; padding: 28px;
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,.05);
}
.advisor-card img { width: 140px; height: 140px; border-radius: 50%; object-fit: cover; object-position: 50% 22%; background: var(--photo-bg); }
.advisor-card .name { font: 600 18px var(--font); color: var(--ink); }
.advisor-card .arole { font: 400 14px/1.45 var(--font); color: var(--muted-2); margin-top: 4px; }

/* ---------- LinkedIn link ---------- */
.li-link {
  display: inline-flex; align-items: center; gap: 10px; font: 600 14px var(--font);
  color: var(--green-900); border: 1.5px solid var(--green-700); padding: 10px 20px;
  border-radius: 999px; text-decoration: none;
}
.li-link:hover { background: rgba(27,122,61,.08); }
.li-link--plain { border: 0; padding: 0; margin-top: auto; color: var(--green-700); font-size: 13px; gap: 7px; }

/* ---------- Hiring box ---------- */
.hiring {
  position: relative; overflow: hidden; max-width: var(--maxw); margin: 0 auto;
  background: linear-gradient(120deg,#EAF4DE 0%,#F4FAEC 100%); border: 2px solid #CBE3A8;
  border-radius: 16px; padding: 64px 56px; text-align: center;
}
.hiring .inner { position: relative; }
.hiring h3 { font: 700 32px/1.18 var(--font); letter-spacing: -.02em; max-width: 720px; margin: 0 auto 16px; }
.hiring p { font: 400 18px/1.7 var(--font); color: var(--body); max-width: 600px; margin: 0 auto 30px; }

/* ---------- CTA ---------- */
.cta { position: relative; overflow: hidden; background: var(--cta-grad); padding: 92px 48px; text-align: center; }
.cta .inner { position: relative; max-width: 760px; margin: 0 auto; }
.cta h2 { font: 700 40px/1.12 var(--font); letter-spacing: -.02em; color: #fff; margin-bottom: 16px; }
.cta h2.sm { font-size: 38px; line-height: 1.18; }
.cta p { font: 400 18px/1.6 var(--font); color: #eaf5ea; margin-bottom: 32px; }

/* ---------- News ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.news-card {
  display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line-2);
  border-radius: 12px; overflow: hidden; box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
.news-card__cover { height: 188px; overflow: hidden; background: var(--photo-bg); }
.news-card__cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.news-card__logo { height: 188px; display: flex; align-items: center; justify-content: center; background: #fff; border-bottom: 1px solid var(--line-2); padding: 24px; }
.news-card__logo img { max-width: 78%; max-height: 84px; object-fit: contain; display: block; }
.news-card__body { padding: 26px 26px 30px; display: flex; flex-direction: column; flex: 1; }
.news-card__date { font: 600 12px var(--font); letter-spacing: .04em; color: #8a9a82; margin-bottom: 12px; }
.news-card__body h3 { font: 600 19px/1.32 var(--font); color: var(--ink); margin-bottom: 12px; }
.news-card__body p { font: 400 15px/1.65 var(--font); color: var(--muted); }

/* ---------- Governance / text pages ---------- */
.page-header { background: var(--hero-grad); padding: 88px 48px 64px; }
.page-header h1 { font: 700 44px/1.1 var(--font); letter-spacing: -.02em; }
.prose { padding: 72px 48px; }
.prose .container { max-width: 760px; }
.prose h2 { font: 700 26px var(--font); color: var(--green-900); margin: 40px 0 12px; }
.prose h2:first-child { margin-top: 0; }
.prose p { font: 400 17px/1.8 var(--font); color: var(--body); margin-bottom: 14px; }
.prose a { color: var(--green-700); }
.prose .grid-3 { margin-top: 28px; }
.prose .card h3 { font-size: 18px; margin-bottom: 8px; }
.prose .card h3 a { color: var(--green-900); }
.prose .card p { font-size: 15px; }

/* ---------- Footer ---------- */
.footer { background: var(--footer-bg); padding: 54px 48px; }
.footer__inner { max-width: var(--maxw); margin: 0 auto; display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 30px; }
.footer__brand { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer__brand img { border-radius: 50%; }
.footer__brand span { font: 700 18px var(--font); color: #fff; }
.footer__desc { max-width: 300px; font: 400 14px/1.7 var(--font); color: var(--footer-text); }
.footer__cols { display: flex; gap: 64px; flex-wrap: wrap; }
.footer__col { display: flex; flex-direction: column; gap: 10px; }
.footer__col .head { font: 600 13px var(--font); color: var(--footer-head); margin-bottom: 4px; }
.footer__col a { font: 400 14px var(--font); color: var(--footer-text); text-decoration: none; }
.footer__col a:hover { color: #fff; }
.footer__col span { font: 400 14px var(--font); color: var(--footer-text); }
.footer__bottom { max-width: var(--maxw); margin: 30px auto 0; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font: 400 13px var(--font); color: var(--footer-text); }
.footer__bottom a { color: var(--footer-text); text-decoration: none; }
.footer__bottom a:hover { color: #fff; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .hero__home-grid { gap: 44px; }
  .hero__lockup span { font-size: 38px; }
  .h1 { font-size: 46px; }
  .section-head, .cta h2 { font-size: 34px; }
}

@media (max-width: 860px) {
  .nav { padding: 16px 24px; }
  .nav__toggle { display: flex; }
  .nav__links {
    position: absolute; top: 100%; left: 0; right: 0; flex-direction: column;
    align-items: flex-start; gap: 4px; background: #fff; padding: 12px 24px 20px;
    box-shadow: 0 12px 24px rgba(0,0,0,.08); display: none; z-index: 50;
  }
  .nav__links.open { display: flex; }
  .nav__link, .nav__contact { width: 100%; padding: 12px 0; }
  .nav__contact { text-align: center; padding: 12px; margin-top: 6px; }

  .section, .panel-green, .cta, .section--pad-sm { padding-left: 24px; padding-right: 24px; }
  .section, .panel-green { padding-top: 64px; padding-bottom: 64px; }

  .hero--home { height: auto; padding: 56px 0; }
  .hero__inner { position: static; padding: 0 24px; }
  .hero__home-grid { flex-direction: column; align-items: flex-start; gap: 28px; }
  .hero__center { position: static; padding: 64px 24px; }
  .hero--header, .hero--header.about { min-height: 0; }

  .grid-2, .grid-3, .grid-4, .founders, .values, .news-grid, .split { grid-template-columns: 1fr; }
  .advisor-grid.grid-3, .advisor-grid.grid-4 { grid-template-columns: repeat(2, 1fr); }
  .split { gap: 32px; }
  .h1, .h1--header, .h1--about { font-size: 38px; }
  .section-head, .cta h2 { font-size: 30px; }
  .hiring { padding: 48px 28px; }
  .footer__inner { flex-direction: column; }
}

@media (max-width: 520px) {
  .advisor-grid.grid-3, .advisor-grid.grid-4 { grid-template-columns: 1fr; }
  .h1, .h1--header, .h1--about { font-size: 31px; }
  .hero__lockup span { font-size: 30px; }
  .btn { width: 100%; justify-content: center; }
  .btn-row { flex-direction: column; }
  .footer__cols { gap: 32px; }
}

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