/* Layout: clean institutional site. Sticky nav, maroon hero with the equilibrium figure, a facts strip, a four-column event card grid, then per-event registration pages. */
:root{
  --bg:#faf8f6; --surface:#ffffff; --ink:#1d1418; --muted:#665a5f; --line:#e6dfda; --tint:#f4eeea;
  --maroon:#5e1022; --maroon-ink:#ffffff; --gold:#c99a2e; --gold-text:#8a6107; --gold-soft:#f7ecd0;
  --brand:#6e1226; --brand-ink:#ffffff; --up:#1b7a4b; --warn:#b3261e; --shadow:0 1px 2px rgba(40,10,20,.06),0 8px 24px rgba(40,10,20,.07);
  --f:'Plus Jakarta Sans','Segoe UI',Helvetica,Arial,sans-serif;
  --f-mono:ui-monospace,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#150b0f; --surface:#21121a; --ink:#f5ece8; --muted:#bba8ae; --line:#3b2330; --tint:#2a1620;
  --maroon:#44091a; --maroon-ink:#ffffff; --gold:#e6b84a; --gold-text:#e6b84a; --gold-soft:#3a2a12;
  --brand:#e6b84a; --brand-ink:#1a1204; --up:#5fd39b; --warn:#ff8f82; --shadow:none; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#150b0f; --surface:#21121a; --ink:#f5ece8; --muted:#bba8ae; --line:#3b2330; --tint:#2a1620;
  --maroon:#44091a; --maroon-ink:#ffffff; --gold:#e6b84a; --gold-text:#e6b84a; --gold-soft:#3a2a12;
  --brand:#e6b84a; --brand-ink:#1a1204; --up:#5fd39b; --warn:#ff8f82; --shadow:none; color-scheme:dark}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font:16px/1.6 var(--f);margin:0;
  padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:40;background:var(--surface)}
.wrap{max-width:1120px;margin:0 auto}
h1,h2,h3,h4{margin:0;text-wrap:balance;line-height:1.15;font-weight:700;letter-spacing:-.015em}
a{color:inherit}
:focus-visible{outline:3px solid var(--gold);outline-offset:3px}
.band{margin-inline:calc(-1*max(16px,env(safe-area-inset-left,0px))) calc(-1*max(16px,env(safe-area-inset-right,0px)));
  padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--gold-text)}

/* nav */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:30;background:var(--surface);border-bottom:1px solid var(--line)}
.nav .in{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:14px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;text-decoration:none;letter-spacing:-.02em}
.logo i{width:30px;height:30px;border-radius:8px;background:var(--maroon);display:grid;place-items:center;color:#fff;font:800 15px var(--f);font-style:normal}
.nav nav{display:flex;align-items:center;gap:26px}
.nav nav a{font-size:14px;font-weight:500;text-decoration:none;color:var(--muted)}
.nav nav a:hover{color:var(--ink)}
.nav nav a.btn,.nav nav a.btn:hover{color:var(--brand-ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:600 14px var(--f);background:var(--brand);color:var(--brand-ink);
  border:1.5px solid var(--brand);border-radius:8px;padding:12px 22px;text-decoration:none;cursor:pointer;white-space:nowrap}
.btn:hover{filter:brightness(1.1)}
.btn.sm{padding:9px 16px;font-size:13px}
.btn.line{background:transparent;color:inherit;border-color:currentColor}
.btn.gold{background:var(--gold);border-color:var(--gold);color:#241a05}
.btn[disabled]{opacity:.55;cursor:wait}
.cta{display:flex;gap:12px;flex-wrap:wrap}

/* hero */
.hero{background:var(--maroon);color:var(--maroon-ink)}
.hero .in{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:56px;align-items:center;padding-block:72px 96px}
.hero .eyebrow{color:#f0cf7a}
.hero h1{font-size:clamp(38px,6vw,68px);font-weight:800;letter-spacing:-.03em;margin:14px 0 18px}
.hero h1 span{color:#f0cf7a}
.hero p{margin:0 0 30px;font-size:18px;max-width:30em;opacity:.92}
.hero .btn{background:#fff;color:var(--maroon);border-color:#fff}
.hero .btn.line{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.fig{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);border-radius:16px;padding:20px}
svg.curve{width:100%;height:auto;display:block}
.ax{stroke:#fff;stroke-width:2;fill:none;opacity:.9}
.gd{stroke:#f0cf7a;stroke-width:1.2;stroke-dasharray:4 5;fill:none}
.sup{stroke:#7fe0ae;stroke-width:4;fill:none;stroke-linecap:round}
.dem{stroke:#ff9f8a;stroke-width:4;fill:none;stroke-linecap:round}
.tx{font:500 13px var(--f);fill:#f0e3e6}
.tx.k{fill:#ffe39a;font-size:16px;font-weight:700}
.eq{fill:#ffe39a}
.draw{stroke-dasharray:420;stroke-dashoffset:420;animation:draw 1.4s .2s ease-out forwards}
@keyframes draw{to{stroke-dashoffset:0}}
@media (prefers-reduced-motion:reduce){.draw{animation:none;stroke-dashoffset:0}}

/* facts strip overlapping the hero */
.facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin-top:-48px;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);position:relative}
.fact{padding:22px 24px;border-right:1px solid var(--line);min-width:0}
.fact:last-child{border-right:0}
.fact small{display:block;font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.fact b{display:block;font-size:20px;margin-top:4px;letter-spacing:-.01em}

section{padding-block:80px}
.sh{max-width:44em;margin-bottom:36px;display:grid;gap:10px}
.sh h2{font-size:clamp(28px,4vw,40px);font-weight:800;letter-spacing:-.025em}
.sh p{margin:0;color:var(--muted);font-size:17px}

/* about */
.about{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:56px;align-items:start}
.about p{margin:0 0 16px;color:var(--muted);font-size:17px}
.about p:first-child{color:var(--ink);font-size:19px}
.pills{display:grid;gap:12px}
.pill{display:flex;gap:16px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.pill b{font-size:28px;font-weight:800;color:var(--brand);min-width:56px;letter-spacing:-.02em}
.pill span{font-size:14px;color:var(--muted)}

/* event cards */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr));gap:20px}
.ec{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px;display:flex;flex-direction:column;gap:12px;min-width:0;transition:box-shadow .15s,border-color .15s}
.ec:hover{box-shadow:var(--shadow);border-color:var(--gold)}
.ec .top{display:flex;justify-content:space-between;align-items:center}
.ec .no{font-size:13px;font-weight:700;color:var(--gold-text);letter-spacing:.06em}
.badge{font-size:12px;font-weight:600;padding:4px 10px;border-radius:99px;background:var(--tint);color:var(--muted)}
.badge.on{background:rgba(27,122,75,.12);color:var(--up)}
.ec h3{font-size:22px;margin-top:4px}
.ec .tg{font-size:14px;font-weight:600;color:var(--brand)}
.ec .what{margin:0;font-size:14px;color:var(--muted);flex:1}
.ec .meta{font-size:13px;color:var(--muted);padding-top:12px;border-top:1px solid var(--line)}
.ec .foot{display:flex;justify-content:space-between;align-items:center;gap:12px}
.ec .foot small{display:block;font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.ec .foot b{font-size:18px}
.note{font-size:14px;color:var(--muted);margin:20px 0 0}

/* contacts */
.contacts{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr));gap:20px}
.ct{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px}
.ct h4{font-size:16px;margin-bottom:12px}
.ct p{margin:0 0 6px;font-size:14px;display:flex;flex-direction:column}
.ct p span:last-child{color:var(--muted);font-variant-numeric:tabular-nums}
footer{background:var(--maroon);color:#fff;padding-block:30px;font-size:14px}
footer .in{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer span{opacity:.85}

/* registration page */
.rhead{background:var(--maroon);color:#fff}
.rhead .body{padding-block:28px 56px;display:grid;gap:14px}
.back{font-size:14px;font-weight:500;text-decoration:none;opacity:.9;width:max-content}
.back:hover{text-decoration:underline}
.rhead .eyebrow{color:#f0cf7a;margin-top:10px}
.rhead h1{font-size:clamp(34px,6vw,56px);font-weight:800;letter-spacing:-.03em}
.rhead p{margin:0;max-width:40em;font-size:18px;opacity:.92}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{font-size:13px;font-weight:600;padding:5px 12px;border-radius:99px;border:1px solid rgba(255,255,255,.4);color:#fff}
.chip.fee{background:#f0cf7a;border-color:#f0cf7a;color:#2a1c04}
.rgrid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:32px;align-items:start;margin-top:-28px;padding-bottom:80px;position:relative}
.formcard{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:32px}
.f{display:grid;gap:6px;margin-bottom:18px;min-width:0}
.f label{font-size:13px;font-weight:600}
.f small{color:var(--muted);font-size:12px}
.two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
input[type=text],input[type=email],input[type=tel],select,textarea{font:16px var(--f);color:var(--ink);background:var(--bg);border:1.5px solid var(--line);border-radius:8px;padding:12px 14px;width:100%}
input:focus,select:focus,textarea:focus{border-color:var(--brand);outline:3px solid color-mix(in srgb,var(--gold) 35%,transparent)}
textarea{min-height:92px;resize:vertical}
h3.fs{font-size:18px;margin:32px 0 18px;padding-top:24px;border-top:1px solid var(--line)}
h3.fs:first-child{margin-top:0;border-top:0;padding-top:0}
.err{color:var(--warn);font-size:13px;font-weight:500;margin:2px 0 0}
.side{display:grid;gap:16px;position:sticky;top:84px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px 22px}
.card h4{font-size:15px;margin-bottom:10px}
.card ul{margin:0;padding-left:18px;display:grid;gap:6px;font-size:14px;color:var(--muted)}
.card p{margin:0 0 8px;font-size:14px;color:var(--muted)}
.pay{background:var(--gold-soft);border-radius:12px;padding:18px 20px;font-size:14px;margin-bottom:18px}
.pay .amt{font-size:34px;font-weight:800;color:var(--brand);display:block;margin:2px 0 6px;letter-spacing:-.02em}
.ok{background:var(--surface);border:1px solid var(--up);border-radius:14px;padding:32px;margin-block:48px 80px;grid-column:1/-1;box-shadow:var(--shadow)}
.ok h3{font-size:26px;color:var(--up);margin-bottom:10px}
.ok pre{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:16px;font:13px/1.6 var(--f-mono);white-space:pre-wrap;overflow-wrap:anywhere;margin:16px 0}
.status{font-size:13px;color:var(--muted);margin:10px 0 0}

@media (max-width:900px){
  .nav nav a.hide{display:none}
  .hero .in,.about,.rgrid{grid-template-columns:1fr}
  .hero .in{padding-block:48px 80px;gap:36px}
  .facts{grid-template-columns:1fr 1fr}
  .fact:nth-child(2){border-right:0}.fact:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .side{position:static}
  .two{grid-template-columns:1fr}
  .formcard{padding:22px}
  section{padding-block:56px}
}

/* confirmation + admin helpers */
.sum{display:grid;grid-template-columns:max-content minmax(0,1fr);gap:8px 20px;margin:18px 0;font-size:15px}
.sum dt{color:var(--muted)}.sum dd{margin:0;font-weight:600;overflow-wrap:anywhere}
.bad{background:var(--surface);border:1px solid var(--warn);border-radius:14px;padding:28px;margin-block:48px 80px;box-shadow:var(--shadow)}
.bad h3{color:var(--warn);font-size:24px;margin-bottom:10px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* team member rows + small note */
.mrow{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr) minmax(0,1fr) auto;gap:12px;align-items:end;padding:14px;margin-bottom:12px;background:var(--bg);border:1px solid var(--line);border-radius:10px}
.mrow .f{margin-bottom:0}.mrow .rm{align-self:end;margin-bottom:6px}
.small-note{font-size:13px;color:var(--muted);margin:10px 0 0}
@media (max-width:700px){.mrow{grid-template-columns:1fr 1fr}.mrow .f:first-child{grid-column:1/-1}}

/* info blocks */
.info{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:24px 28px}
.info ul{margin:0;padding-left:20px;display:grid;gap:8px;font-size:16px}
.info p{margin:0 0 12px;color:var(--muted);font-size:15px}
.info p:last-child{margin-bottom:0}
.info p b{color:var(--ink)}
.info .sum{margin:0 0 16px}

/* payment page */
.payrow{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:24px;align-items:start;margin:24px 0 64px}
.qrbox{display:grid;place-items:center;padding:22px;background:#fff;border:1px solid var(--line);border-radius:14px;min-height:260px}
.qrbox img{width:min(100%,300px);height:auto;display:block}
.amtbig{font-size:48px;font-weight:800;letter-spacing:-.03em;color:var(--brand);line-height:1.1;margin:4px 0 12px}
.steps{margin:0 0 20px;padding-left:20px;display:grid;gap:6px;color:var(--muted);font-size:15px}
@media (max-width:800px){.payrow{grid-template-columns:1fr}}
.tag.r{background:rgba(179,38,30,.14);color:var(--warn)}.tag.a{background:var(--gold-soft);color:var(--gold-text)}