:root {
  color-scheme: dark;
  --bg: #0b1017;
  --panel: #121c27;
  --panel-2: #182432;
  --text: #f7fbff;
  --muted: #b8c5d1;
  --dim: #8393a2;
  --cyan: #53d7ff;
  --pink: #ff66b8;
  --lime: #a6f0c6;
  --line: rgba(83, 215, 255, .28);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 80% 8%, rgba(83,215,255,.1), transparent 26%),
    radial-gradient(circle at 18% 38%, rgba(255,102,184,.065), transparent 31%),
    linear-gradient(180deg, #101821 0%, var(--bg) 42%, #0e141c 100%);
  color: var(--text);
  font: 17px/1.5 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body::before {
  position: fixed;
  inset: 0;
  content: "";
  pointer-events: none;
  opacity: .55;
  background-image: linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, #000, transparent 82%);
}

a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible { outline: 4px solid var(--cyan); outline-offset: 4px; }
.skip-link { position: fixed; z-index: 1000; top: -100px; left: 1rem; padding: .8rem 1rem; background: #fff; color: #000; }
.skip-link:focus { top: 1rem; }

.site-shell { position: relative; width: min(1500px, 100%); margin: 0 auto; padding: 0 clamp(22px, 5vw, 78px); }
.site-header { display: flex; justify-content: space-between; align-items: center; min-height: 92px; border-bottom: 1px solid rgba(255,255,255,.1); }
.wordmark { display: inline-flex; align-items: center; gap: .7rem; color: #d9e5ed; text-decoration: none; font-size: .86rem; font-weight: 900; letter-spacing: .13em; }
.wordmark i { width: 11px; height: 11px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 28px var(--cyan); }
.release { color: var(--dim); font-size: .73rem; font-weight: 900; letter-spacing: .14em; }

.hero { min-height: min(780px, 84vh); display: grid; align-content: center; padding: clamp(70px, 9vw, 140px) 0; }
.eyebrow { margin: 0 0 1rem; color: var(--cyan); font-size: .78rem; font-weight: 900; letter-spacing: .15em; }
.hero h1 { margin: 0; max-width: 1050px; font-size: clamp(3.5rem, 7.9vw, 8.8rem); line-height: .86; letter-spacing: -.065em; }
.hero h1 span { color: var(--cyan); }
.hero h1 em { color: var(--pink); font-style: normal; }
.hero-copy { max-width: 680px; margin: 2rem 0 0; color: var(--muted); font-size: clamp(1.2rem, 2vw, 1.8rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: .9rem 1.15rem; border: 1px solid var(--line); border-radius: 10px; background: #15212c; color: #fff; text-decoration: none; font: 900 .82rem/1 system-ui; letter-spacing: .06em; cursor: pointer; }
.button.primary { border-color: rgba(255,102,184,.55); background: #38172d; }
.button.quiet { background: transparent; color: var(--muted); }
.resume-detail { margin: 1rem 0 0; color: var(--dim); font-size: .9rem; }

.session-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; padding: 5rem 0; }
.session-card { position: relative; display: grid; grid-template-columns: 76px 1fr; gap: 1rem; min-height: 330px; padding: clamp(24px, 3vw, 42px); border: 1px solid rgba(255,255,255,.1); border-radius: 22px; background: linear-gradient(145deg, rgba(25,36,48,.94), rgba(14,21,29,.94)); box-shadow: 0 30px 80px rgba(0,0,0,.2); overflow: hidden; }
.session-card::after { position: absolute; right: -80px; bottom: -90px; width: 240px; height: 240px; border-radius: 50%; content: ""; background: rgba(83,215,255,.045); }
.session-card.featured { border-color: rgba(255,102,184,.32); }
.session-card.featured::after { background: rgba(255,102,184,.055); }
.session-number { color: var(--cyan); font-size: 1.1rem; font-weight: 900; letter-spacing: .1em; }
.session-state { margin: 0; color: var(--pink); font-size: .73rem; font-weight: 900; letter-spacing: .1em; }
.session-card h2 { margin: .55rem 0 .75rem; max-width: 520px; font-size: clamp(1.8rem, 3vw, 3.2rem); line-height: 1; letter-spacing: -.04em; }
.session-card p:not(.session-state) { max-width: 560px; color: var(--muted); }
.card-link { grid-column: 2; align-self: end; width: fit-content; color: var(--cyan); text-decoration: none; font-size: .82rem; font-weight: 900; letter-spacing: .08em; }
.card-link span { display: inline-block; margin-left: .35rem; transition: transform .18s ease; }
.card-link:hover span { transform: translateX(5px); }

.instructor-band { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 2rem; margin: 2rem 0 7rem; padding: clamp(28px, 5vw, 64px); border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(120deg, rgba(83,215,255,.075), rgba(255,102,184,.055)); }
.instructor-band h2 { margin: 0; font-size: clamp(2rem, 4vw, 4.6rem); line-height: 1; letter-spacing: -.05em; }
.instructor-band p:not(.eyebrow) { max-width: 750px; color: var(--muted); }
.site-footer { display: flex; justify-content: space-between; gap: 2rem; padding: 2rem 0; border-top: 1px solid rgba(255,255,255,.1); color: var(--dim); font-size: .82rem; }

.modal { position: fixed; z-index: 1000; inset: 0; display: none; overflow: auto; padding: clamp(18px, 4vw, 56px); background: rgba(6,10,15,.985); }
.modal.open { display: block; }
.modal-panel { width: min(980px, 100%); margin: 0 auto; }
.modal-head { display: flex; justify-content: space-between; align-items: start; gap: 1rem; }
.modal h2 { margin: 0; font-size: clamp(2.8rem, 7vw, 6.5rem); line-height: .9; }
.icon-button { min-height: 46px; padding: .7rem 1rem; border: 1px solid var(--line); border-radius: 10px; background: #15212c; color: #fff; font-weight: 900; cursor: pointer; }
.preflight-summary { margin: 2rem 0 1rem; padding: 1rem; border-left: 4px solid var(--cyan); background: rgba(83,215,255,.075); font-weight: 800; }
.preflight-results { display: grid; gap: .75rem; }
.preflight-result { display: grid; grid-template-columns: 92px 1fr; gap: 1rem; padding: 1rem; border: 1px solid rgba(255,255,255,.1); border-radius: 12px; background: rgba(255,255,255,.035); }
.preflight-result strong { align-self: start; padding: .3rem .4rem; border-radius: 999px; text-align: center; font-size: .72rem; letter-spacing: .08em; }
.preflight-result.pass strong { background: #163a2e; color: #86f2bd; }
.preflight-result.warning strong { background: #473719; color: #ffd57b; }
.preflight-result.fail strong { background: #4a1c28; color: #ff9fba; }
.preflight-result h3 { margin: 0 0 .25rem; }
.preflight-result p { margin: 0; color: var(--muted); }

@media (max-width: 820px) {
  .session-grid { grid-template-columns: 1fr; }
  .instructor-band { grid-template-columns: 1fr; align-items: start; }
  .site-footer { flex-direction: column; }
}

@media (max-width: 560px) {
  .release { display: none; }
  .session-card { grid-template-columns: 52px 1fr; }
  .card-link { grid-column: 1 / -1; }
  .preflight-result { grid-template-columns: 1fr; }
}

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