@import url("../tokens.css");

@font-face {
  font-family: "Source Serif 4";
  src: url("../assets/fonts/source-serif-4-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Hanken Grotesk";
  src: url("../assets/fonts/hanken-grotesk-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("../assets/fonts/ibm-plex-mono-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; scroll-padding-top: var(--space-24); }
body { margin: 0; overflow-x: clip; background: var(--color-night); color: var(--color-ink); font-family: var(--font-body); font-size: var(--text-body); line-height: 1.55; -webkit-font-smoothing: antialiased; }
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: var(--color-clear); }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: 0.55; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-family: var(--font-display); min-width: 0; overflow-wrap: anywhere; }
h1 { font-size: var(--text-display); font-weight: 400; line-height: 1.06; letter-spacing: -0.035em; }
h2 { font-size: var(--text-title); font-weight: 400; line-height: 1.13; letter-spacing: -0.03em; }
h3 { font-size: var(--text-subhead); font-weight: 400; line-height: 1.25; letter-spacing: -0.02em; }
p { max-width: 65ch; }
::selection { background: var(--color-amber-soft); color: var(--color-ink); }
:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 5px; }
[hidden] { display: none !important; }
.container, .shell { width: min(100% - var(--page-gutter) * 2, var(--content-width)); margin-inline: auto; }
.eyebrow, .mono, .label { font-family: var(--font-mono); font-size: var(--text-label); line-height: 1.4; letter-spacing: 0.07em; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: var(--space-3); color: var(--color-muted); margin-block-end: var(--space-6); }
.eyebrow::before { content: ""; width: 6px; height: 6px; background: var(--color-amber-deep); border-radius: var(--radius-pill); flex: none; }
.button, .btn { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: var(--space-3); padding: var(--space-3) var(--space-6); border: var(--rule-thin) solid var(--color-clear); border-radius: var(--radius-card); font-size: var(--text-small); line-height: 1.2; font-weight: 500; white-space: nowrap; transition: background var(--dur-fast), border-color var(--dur-fast), transform var(--dur-fast); }
.button-primary, .button--primary, .btn-primary { background: var(--color-amber); color: var(--color-paper-raised); }
.button-secondary, .button--secondary, .btn-secondary { border-color: var(--color-rule-strong); background: var(--color-clear); color: var(--color-ink); }
.button-dark, .button--dark { background: var(--color-ink); color: var(--color-paper); }
.button:active, .btn:active { transform: translateY(1px); }
.button svg, .btn svg { width: 16px; height: 16px; fill: var(--color-clear); stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.skip-link { position: fixed; inset-block-start: var(--space-4); inset-inline-start: var(--space-4); padding: var(--space-3) var(--space-5); border-radius: var(--radius-small); background: var(--color-ink); color: var(--color-paper); z-index: var(--z-focus); transform: translateY(-200%); }
.skip-link:focus { transform: translateY(0); }

@media (hover: hover) and (pointer: fine) {
  .button-primary:hover, .button--primary:hover, .btn-primary:hover { background: var(--color-amber-hover); }
  .button-secondary:hover, .button--secondary:hover, .btn-secondary:hover { background: var(--color-paper-deep); border-color: var(--color-ink); }
  .button-dark:hover, .button--dark:hover { background: var(--color-body); }
}


.site-header { display: flex; align-items: center; justify-content: space-between; gap: var(--space-6); min-height: 80px; color: var(--color-night-text); --color-focus: var(--color-hero-amber); }
.wordmark { font-family: var(--font-display); font-weight: 400; display: inline-flex; align-items: center; gap: var(--space-2); font-size: 1.75rem; letter-spacing: -0.04em; line-height: 1; white-space: nowrap; min-height: 44px; }
.wordmark-weight { font-weight: 400; }
.wordmark-dot { color: currentColor; }
.brand-mark { width: 27px; height: 27px; fill: var(--color-clear); stroke: var(--color-hero-amber); stroke-width: 1.4; }
.header-nav { display: none; align-items: center; gap: var(--space-10); }
.header-nav a { display: inline-flex; align-items: center; min-height: 44px; font-size: var(--text-small); line-height: 1; white-space: nowrap; }
.button-small { min-height: 44px; padding-inline: var(--space-5); }
.header-cta { flex: none; padding-inline: var(--space-2); background: var(--color-clear); border-color: var(--color-clear); color: var(--color-night-text); }
.hero { display: flex; flex-direction: column; background: var(--color-night); color: var(--color-night-text); --color-focus: var(--color-hero-amber); }
.hero-inner { order: 0; padding-block: var(--space-8) var(--space-6); text-align: center; }
.hero-title { max-width: 62rem; margin-inline: auto; }
.hero-line { display: block; }
.hero-accent { color: var(--color-hero-amber); }
.hero-description { max-width: 50ch; margin: var(--space-6) auto 0; color: var(--color-night-body); font-size: 1.0625rem; line-height: 1.5; text-wrap: pretty; }
.hero-actions { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: var(--space-3); margin-block-start: var(--space-6); }
.hero-actions .button { min-height: 48px; padding-inline: var(--space-6); font-weight: 500; background: var(--color-hero-amber); color: var(--color-night); }
.hero-caption { color: var(--color-night-muted); font-size: var(--text-small); line-height: 1.5; margin: var(--space-4) auto 0; }
.hero-scenery { order: 1; position: relative; width: min(100%, 80rem); margin-inline: auto; aspect-ratio: 2 / 1; overflow: clip; background: var(--color-night); }
.hero-image { width: 100%; height: 100%; object-fit: contain; object-position: center; }
.button-quiet { border-color: var(--color-clear); background: var(--color-clear); font-weight: 500; }
.brain-icon { width: 36px; height: 36px; fill: var(--color-clear); stroke: currentColor; stroke-width: 1.4; flex: none; }

.overview-section { padding-block: var(--space-16); background: var(--color-sky); color: var(--color-ink); }
.overview-heading { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-5); }
.overview-heading h2 { max-width: 20ch; }
.overview-heading p { max-width: 53ch; color: var(--color-ink); font-size: var(--text-body); line-height: 1.65; }
.townhall-film { margin: var(--space-10) 0 0; }
.townhall-film-screen { overflow: hidden; aspect-ratio: 8 / 5; border-radius: var(--radius-card); background: var(--color-night); }
.townhall-video { display: block; width: 100%; height: 100%; object-fit: contain; color-scheme: dark; }

.knowledge-section { padding-block: var(--space-16); background: var(--color-mint); color: var(--color-ink); }
.knowledge-heading { max-width: 66rem; margin-inline: auto; text-align: center; }
.knowledge-heading h2 { max-width: 36ch; margin-inline: auto; }
.knowledge-heading p { max-width: 69ch; margin: var(--space-6) auto 0; color: var(--color-ink); font-size: var(--text-body); line-height: 1.6; }
.knowledge-flow { display: grid; grid-template-columns: minmax(0, 1fr); align-items: center; gap: var(--space-6); max-width: 68rem; margin: var(--space-10) auto 0; text-align: center; }
.knowledge-flow > div { min-width: 0; }
.knowledge-flow .flow-icon { display: block; width: 52px; height: 52px; margin: 0 auto var(--space-3); fill: var(--color-clear); stroke: currentColor; stroke-width: 1.8; }
.knowledge-flow > div:nth-of-type(1) .flow-icon { color: var(--color-source-blue); }
.knowledge-flow > div:nth-of-type(2) .flow-icon { color: var(--color-source-coral); }
.knowledge-flow > div:nth-of-type(3) .flow-icon { color: var(--color-source-green); }
.knowledge-flow strong { display: block; font-family: var(--font-display); font-size: 1.5rem; font-weight: 400; line-height: 1.3; }
.knowledge-flow p { margin: var(--space-2) auto 0; color: var(--color-ink); font-size: var(--text-body); line-height: 1.5; }
.knowledge-flow .flow-arrow { width: 32px; height: 24px; margin-inline: auto; fill: var(--color-clear); stroke: var(--color-ink); stroke-width: 1.5; transform: rotate(90deg); }
.release-note { max-width: 75ch; margin: var(--space-10) auto 0; color: var(--color-ink); font-size: var(--text-body); line-height: 1.6; text-align: center; }

.contact-section { padding-block: var(--space-16) var(--space-12); background: var(--color-sunshine); color: var(--color-ink); text-align: center; }
.contact-section > .container { display: flex; flex-direction: column; align-items: center; }
.contact-symbol { width: 60px; height: 60px; margin-block-end: var(--space-6); }
.contact-symbol svg { width: 100%; height: 100%; stroke: var(--color-ink); fill: var(--color-clear); stroke-width: 1.4; }
.contact-section h2 { max-width: 35ch; font-size: clamp(2rem, 3.4vw + 0.5rem, 3.5rem); }
.contact-section .container > p { color: var(--color-ink); margin-block-start: var(--space-5); font-size: var(--text-body); }
.contact-section .button { min-height: 56px; margin-block-start: var(--space-6); padding-inline: var(--space-8); background: var(--color-night); color: var(--color-night-text); }
.contact-note { display: inline-flex; align-items: center; min-height: 44px; font-size: var(--text-small); color: var(--color-ink); margin-block-start: var(--space-2); }
.site-footer { background: var(--color-sunshine); color: var(--color-ink); padding-block: 0 var(--space-8); }
.footer-inner { display: flex; align-items: center; flex-wrap: wrap; justify-content: space-between; gap: var(--space-5) var(--space-8); padding-block-start: var(--space-6); border-block-start: var(--rule-thin) solid var(--color-sunshine-rule); }
.site-footer .wordmark { font-size: var(--text-lead); }
.site-footer .brand-mark { width: 24px; height: 24px; stroke: var(--color-ink); }
.site-footer p { font-size: var(--text-small); color: var(--color-ink); order: 3; width: 100%; }
.footer-inner > span { font-size: var(--text-small); color: var(--color-ink); }

@media (hover: hover) and (pointer: fine) {
  .header-nav a:hover, .header-cta:hover { color: var(--color-hero-amber); background: var(--color-clear); }
  .hero-actions .button:hover { background: var(--color-hero-amber-hover); }
  .contact-section .button:hover { background: var(--color-body); }
}
.header-nav a:active { color: var(--color-night-body); }

@media (min-width: 40rem) {
  .hero-inner { padding-block-start: var(--space-10); }
  .hero-description { font-size: var(--text-lead); }
  .site-footer p { order: initial; width: auto; }
  .knowledge-flow { grid-template-columns: minmax(0, 1fr) 32px minmax(0, 1fr) 32px minmax(0, 1fr); gap: var(--space-4); }
  .knowledge-flow .flow-arrow { transform: none; }
}
@media (min-width: 60rem) {
  .header-nav { display: flex; }
  .hero-title { font-size: clamp(3.5rem, 4.8vw, 4.5rem); line-height: 1.05; }
  .hero-title .hero-accent { font-size: 0.8em; }
  .hero-inner { padding-block-start: var(--space-10); }
  .hero-description { max-width: 54ch; margin-block-start: var(--space-6); }
  .hero-actions { margin-block-start: var(--space-6); }
  .overview-section, .knowledge-section { padding-block: var(--space-20); }
  .overview-heading { grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr); align-items: center; gap: var(--space-20); }
  .overview-heading p { font-size: 1.125rem; }
  .townhall-film { margin-block-start: var(--space-12); }
  .knowledge-heading p { font-size: 1.125rem; }
  .knowledge-flow { margin-block-start: var(--space-12); }
  .knowledge-flow .flow-icon { width: 64px; height: 64px; }
  .knowledge-flow strong { font-size: 1.625rem; }
  .contact-section { padding-block: var(--space-16) var(--space-12); }
  .contact-section .container > p { font-size: var(--text-lead); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}