:root {
  color-scheme: dark;
  --bg: #07110f;
  --bg-soft: #0d1b18;
  --panel: rgba(255, 255, 255, 0.075);
  --panel-strong: rgba(255, 255, 255, 0.12);
  --text: #f3efe6;
  --muted: #b9c0b7;
  --line: rgba(255, 255, 255, 0.16);
  --gold: #e0b75b;
  --green: #79c7a2;
  --blue: #9db7ff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.36);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 20% 0%, rgba(121, 199, 162, 0.22), transparent 34rem),
    radial-gradient(circle at 85% 8%, rgba(157, 183, 255, 0.16), transparent 30rem),
    linear-gradient(180deg, #08110f 0%, #0b1412 42%, #050807 100%);
  color: var(--text);
  line-height: 1.6;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 80%);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 4rem);
  background: rgba(7, 17, 15, 0.8);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.35rem;
  height: 2.35rem;
  border: 1px solid rgba(224, 183, 91, 0.7);
  border-radius: 999px;
  color: var(--gold);
  font-size: 0.8rem;
  box-shadow: inset 0 0 26px rgba(224, 183, 91, 0.15);
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.5rem);
  font-size: 0.95rem;
}

nav a, footer a {
  color: var(--muted);
  text-decoration: none;
}

nav a:hover, footer a:hover { color: var(--text); }

.nav-cta {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
}

main { overflow: hidden; }

.section {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.section-grid,
.split {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.hero { min-height: calc(100vh - 74px); }

.eyebrow,
.quote-kicker {
  margin: 0 0 1rem;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p { margin-top: 0; }

h1 {
  max-width: 12ch;
  margin-bottom: 1.25rem;
  font-size: clamp(4rem, 11vw, 9rem);
  line-height: 0.84;
  letter-spacing: -0.08em;
}

h2 {
  margin-bottom: 1.25rem;
  font-size: clamp(2rem, 5vw, 4.35rem);
  line-height: 0.96;
  letter-spacing: -0.055em;
}

h3 {
  margin-bottom: 0.55rem;
  font-size: 1.15rem;
  line-height: 1.2;
}

.lede {
  max-width: 58rem;
  color: #d9ded5;
  font-size: clamp(1.2rem, 2.4vw, 1.65rem);
  line-height: 1.45;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.85rem 1.15rem;
  font-weight: 750;
  line-height: 1;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button:hover { transform: translateY(-2px); }

.primary {
  background: var(--gold);
  color: #15100a;
}

.secondary {
  border: 1px solid var(--line);
  color: var(--text);
}

.hero-card,
.prose-card,
.principle-grid article,
.research-list article,
.conference-card,
.final-cta {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.hero-card {
  position: relative;
  padding: clamp(1.5rem, 4vw, 3rem);
}

.hero-card::after {
  content: "";
  position: absolute;
  right: 1.5rem;
  bottom: 1.5rem;
  width: 7rem;
  height: 7rem;
  border: 1px solid rgba(224, 183, 91, 0.38);
  border-radius: 999px;
  background: radial-gradient(circle, rgba(224, 183, 91, 0.18), transparent 64%);
}

blockquote {
  margin: 0;
  font-family: Georgia, serif;
  font-size: clamp(1.75rem, 4vw, 3rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.narrow {
  max-width: 860px;
}

.narrow p,
.prose-card p,
.conference-card p,
.final-cta p {
  color: var(--muted);
  font-size: 1.08rem;
}

.prose-card { padding: clamp(1.5rem, 3vw, 2.5rem); }
.prose-card p:last-child { margin-bottom: 0; }

.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.principle-grid article,
.research-list article {
  padding: 1.35rem;
}

.principle-grid p,
.research-list p {
  margin-bottom: 0;
  color: var(--muted);
}

.research-section {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.research-list {
  display: grid;
  gap: 1rem;
}

.research-list article {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 1rem;
}

.research-list span {
  color: var(--gold);
  font-weight: 900;
}

.conference-card,
.final-cta {
  padding: clamp(1.5rem, 5vw, 4rem);
}

.conference-card ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem 2rem;
  margin: 1.5rem 0 2rem;
  padding-left: 1.25rem;
  color: #d9ded5;
}

.final-cta {
  text-align: center;
  background: linear-gradient(135deg, rgba(224, 183, 91, 0.16), rgba(121, 199, 162, 0.11));
}

.final-cta h2 { margin-inline: auto; max-width: 980px; }
.final-cta p { margin-inline: auto; max-width: 720px; }

footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem clamp(1rem, 4vw, 4rem);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

footer p { margin: 0; }

.page-hero {
  padding-bottom: clamp(2rem, 5vw, 4rem);
}

.page-hero h1 {
  max-width: 10ch;
  font-size: clamp(3.5rem, 8vw, 7rem);
}

.document {
  max-width: 880px;
  padding-top: 0;
}

.document h2 {
  margin-top: 3rem;
  font-size: clamp(1.8rem, 4vw, 3rem);
}

.document p {
  color: var(--muted);
  font-size: 1.1rem;
}

.document blockquote {
  margin-top: 1.5rem;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel);
}

.plain-list {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--muted);
}

.plain-list li + li { margin-top: 0.75rem; }

.form-section {
  max-width: 820px;
  padding-top: 0;
}

.form-card,
.posts-panel {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: clamp(1.25rem, 4vw, 2.5rem);
}

.form-card {
  display: grid;
  gap: 1rem;
}

.form-card label,
.form-card fieldset {
  display: grid;
  gap: 0.45rem;
  color: #d9ded5;
  font-weight: 700;
}

.form-card input,
.form-card textarea,
.form-card select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(0, 0, 0, 0.22);
  color: var(--text);
  font: inherit;
  padding: 0.85rem 1rem;
}

.form-card textarea { resize: vertical; }

.form-card fieldset {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1rem;
}

.form-card fieldset label,
.checkbox-line {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-weight: 600;
}

.form-card input[type="checkbox"] {
  width: auto;
  margin-top: 0.25rem;
}

.hidden-field {
  position: absolute;
  left: -10000px;
  opacity: 0;
}

.form-note,
.form-status,
.post-meta {
  color: var(--muted);
  font-size: 0.95rem;
}

.form-status { min-height: 1.4rem; }

.forum-layout {
  align-items: start;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
}

.posts-list {
  display: grid;
  gap: 1rem;
  color: var(--muted);
}

.post-card {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.05);
  padding: 1rem;
}

.post-card p:last-child { margin-bottom: 0; }
.post-meta { margin-bottom: 0.45rem; text-transform: capitalize; }

@media (max-width: 860px) {
  .site-header { align-items: flex-start; flex-direction: column; }
  nav { flex-wrap: wrap; }
  .section-grid,
  .split,
  .research-section { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-top: 5rem; }
  .principle-grid { grid-template-columns: 1fr; }
  .conference-card ul { grid-template-columns: 1fr; }
  footer { flex-direction: column; }
}

@media (max-width: 520px) {
  nav a:not(.nav-cta) { display: none; }
  h1 { font-size: 4rem; }
  .button { width: 100%; }
}