/* govrn.ai — landing · "The Standard" */
@import url("brand/tokens.css");

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-text);
  font-size: var(--t-body);
  line-height: 1.5;
  font-weight: var(--w-reg);
}
::selection { background: var(--ink); color: var(--paper); }
a { color: inherit; text-decoration: none; }

/* ---- mono spec label ---- */
.mono { font-family: var(--font-mono); font-size: var(--t-mono); font-weight: 500; letter-spacing: var(--track-mono); text-transform: uppercase; color: var(--ink-80); }
.mono-ink { color: var(--ink); }

/* ---- layout ---- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding-inline: var(--gutter); }
.hr { height: var(--rail); background: var(--line); border: 0; margin: 0; }

/* ---- top rail (document header) ---- */
.rail-top {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: var(--rail) solid var(--line);
}
.rail-top .wrap { display: flex; align-items: center; justify-content: space-between; height: 52px; gap: var(--s-3); }
.brandmark { font-family: var(--font-display); font-weight: var(--w-black); font-size: 1.05rem; letter-spacing: 0.02em; text-transform: lowercase; }
.rail-mid { display: none; }
@media (min-width: 760px){ .rail-mid { display: block; } }
.rail-nav { display: none; gap: var(--s-3); margin-left: var(--s-4); }
@media (min-width: 920px){ .rail-nav { display: inline-flex; } }
.rail-right { display: inline-flex; align-items: center; gap: var(--s-3); margin-left: auto; }
.rail-link { position: relative; }
.rail-link::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -3px; height: 1px; background: var(--ink); transition: right var(--dur) var(--ease); }
.rail-link:hover::after { right: 0; }
.live { display: inline-flex; align-items: center; gap: 0.5em; }
.pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--ink); display: inline-block; animation: breathe 2.6s var(--ease) infinite; }
@keyframes breathe { 0%,100%{ opacity: 0.25; transform: scale(0.85);} 50%{ opacity: 1; transform: scale(1);} }

/* ---- hero ---- */
.hero { padding-top: clamp(3rem, 9vw, 8rem); padding-bottom: var(--s-8); }
.hero .eyebrow { display: flex; gap: var(--s-3); align-items: baseline; margin-bottom: var(--s-6); }
.display {
  font-family: var(--font-display);
  font-weight: var(--w-black);
  font-size: var(--t-mega);
  line-height: 0.92;
  letter-spacing: var(--track-tight);
  margin: 0;
  text-transform: none;
}
.hero .display { max-width: 14ch; }
.hero-sub { display: grid; grid-template-columns: 1fr; gap: var(--s-6); margin-top: var(--s-6); align-items: end; }
@media (min-width: 900px){ .hero-sub { grid-template-columns: 1.3fr 1fr; } }
.lede { font-size: var(--t-lg); line-height: 1.18; font-weight: var(--w-med); letter-spacing: -0.01em; max-width: 22ch; }
.index-list { list-style: none; margin: 0; padding: 0; border-top: var(--rail) solid var(--line); }
.index-list li { display: flex; justify-content: space-between; gap: var(--s-3); padding: 0.6rem 0; border-bottom: var(--rail) solid var(--line); }
.index-list a { display: contents; }
.index-list .row { display: flex; justify-content: space-between; width: 100%; align-items: baseline; transition: padding-left var(--dur) var(--ease); }
.index-list li:hover .row { padding-left: 0.6rem; }

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 0.7em;
  font-family: var(--font-mono); font-size: var(--t-mono); font-weight: 500; letter-spacing: var(--track-mono); text-transform: uppercase;
  padding: 0.95rem 1.5rem; border: var(--rail) solid var(--ink); color: var(--ink); background: transparent;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), transform 0.2s var(--ease);
  cursor: pointer;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn .arr { transition: transform 0.3s var(--ease); }
.btn:hover .arr { transform: translateX(4px); }

/* ---- ticker (living texture) ---- */
.ticker { overflow: hidden; border-block: var(--rail) solid var(--line); padding: 0.7rem 0; }
.ticker-track { display: inline-flex; gap: 2.5rem; white-space: nowrap; animation: marquee 38s linear infinite; }
.ticker .item { font-family: var(--font-mono); font-size: var(--t-mono); font-weight: 500; letter-spacing: var(--track-mono); text-transform: uppercase; color: var(--ink-80); }
.ticker .item::before { content: "—"; margin-right: 2.5rem; color: var(--ink-25); }
@keyframes marquee { from { transform: translateX(0);} to { transform: translateX(-50%);} }

/* ---- section system (numbered clauses) ---- */
.section { padding-block: clamp(3.5rem, 8vw, var(--s-16)); }
.section-grid { display: grid; grid-template-columns: 1fr; gap: var(--s-4); }
@media (min-width: 900px){ .section-grid { grid-template-columns: 4.5rem 1fr; gap: var(--s-8); } }
.clause { position: sticky; top: 80px; align-self: start; }
.section h2 { font-family: var(--font-display); font-weight: var(--w-bold); font-size: var(--t-xl); line-height: 1.0; letter-spacing: var(--track-tight); margin: 0 0 var(--s-4); max-width: 18ch; }
.section .body-lg { font-size: var(--t-md); max-width: 46ch; color: var(--ink-80); }
.section .body-lg + .body-lg { margin-top: var(--s-3); }

/* ---- the three clauses (what it governs) ---- */
.clauses { display: grid; grid-template-columns: 1fr; }
.clause-row { display: grid; grid-template-columns: 1fr; gap: var(--s-2); padding: var(--s-4) 0; border-top: var(--rail) solid var(--line); }
@media (min-width: 760px){ .clause-row { grid-template-columns: 3rem 1fr 1.1fr; gap: var(--s-6); align-items: start; } }
.clause-row:last-child { border-bottom: var(--rail) solid var(--line); }
.clause-row h3 { font-family: var(--font-display); font-weight: var(--w-bold); font-size: var(--t-lg); line-height: 1.0; letter-spacing: var(--track-tight); margin: 0; }
.clause-row p { margin: 0; color: var(--ink-80); }
.clause-row .num { font-family: var(--font-mono); font-size: var(--t-mono); font-weight: 500; letter-spacing: var(--track-mono); color: var(--ink-55); padding-top: 0.5rem; }

/* ---- inverted band ---- */
.invert { background: var(--invert-paper); color: var(--invert-ink); }
.invert .mono { color: rgba(244,243,240,0.6); }
.invert .display, .invert h2 { color: var(--invert-ink); }
.invert .hr { background: rgba(244,243,240,0.18); }
.invert .btn { border-color: var(--invert-ink); color: var(--invert-ink); }
.invert .btn:hover { background: var(--invert-ink); color: var(--ink); }
.invert .body-lg { color: rgba(244,243,240,0.8); }
.invert .pulse { background: var(--invert-ink); }

/* ---- big statement ---- */
.statement { padding-block: clamp(4rem, 10vw, var(--s-24)); }
.statement p { font-family: var(--font-display); font-weight: var(--w-bold); font-size: var(--t-xl); line-height: 1.06; letter-spacing: var(--track-tight); margin: 0; max-width: 20ch; }
.statement .accent { color: var(--ink-40); }
.invert .statement .accent { color: rgba(244,243,240,0.45); }

/* ---- footer rail ---- */
.foot { padding-block: var(--s-8) var(--s-4); }
.foot-grid { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--s-4); align-items: baseline; }
.foot .big { font-family: var(--font-display); font-weight: var(--w-black); font-size: clamp(3rem, 12vw, 9rem); line-height: 0.85; letter-spacing: var(--track-tight); text-transform: lowercase; margin: var(--s-8) 0 var(--s-4); }

/* ---- scroll reveal ---- */
[data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
[data-reveal].in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce){
  [data-reveal]{ opacity: 1; transform: none; transition: none; }
  .pulse, .ticker-track { animation: none; }
}