/* SOVRA — landing page styles */

:root {
  --accent: #d9531e;
  --paper: #f5f1e9;
  --paper2: #efe8db;
  --ink: #17130d;
  --ink-soft: #5c5346;
  --line: rgba(23, 19, 13, 0.14);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: 'Spectral', Georgia, serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--ink); }
::selection { background: var(--accent); color: #fff; }

.mono { font-family: 'IBM Plex Mono', monospace; }
.wrap { max-width: 1140px; margin: 0 auto; padding-left: 32px; padding-right: 32px; }

/* ---- Header ---- */
.header {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; padding-top: 28px; padding-bottom: 28px;
}
.logo { display: flex; align-items: center; gap: 12px; color: var(--ink); }
.logo__word { font-weight: 600; font-size: 20px; letter-spacing: .24em; padding-left: .24em; }
.nav { display: flex; align-items: center; gap: 30px; font-size: 12.5px; letter-spacing: .06em; text-transform: uppercase; }
.nav a { color: var(--ink-soft); }
.nav__btn { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--line); padding: 9px 16px; border-radius: 999px; color: var(--ink) !important; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 10px; padding: 14px 26px;
  border-radius: 999px; font-family: 'IBM Plex Mono', monospace; font-size: 13px;
  letter-spacing: .05em; text-transform: uppercase;
}
.btn--solid { background: var(--accent); color: #fff !important; }
.btn--ghost { border: 1px solid var(--line); color: var(--ink) !important; }

/* ---- Hero ---- */
.hero { padding-top: 56px; padding-bottom: 40px; }
.eyebrow { font-size: 12.5px; letter-spacing: .22em; text-transform: uppercase; color: var(--accent); }
.hero__eyebrow { margin-bottom: 26px; }
.hero h1 {
  font-weight: 500; font-size: clamp(2.5rem, 6.4vw, 4.8rem); line-height: 1.02;
  letter-spacing: -.01em; margin: 0; max-width: 15ch; text-wrap: balance;
}
.hero h1 em { font-style: italic; color: var(--accent); }
.hero__sub {
  font-size: clamp(1.05rem, 1.6vw, 1.3rem); line-height: 1.6; color: var(--ink-soft);
  max-width: 56ch; margin: 30px 0 0; text-wrap: pretty;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }
.hero__rule {
  margin-top: 64px; border-top: 1px solid var(--line); padding-top: 26px;
  display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.hero__rule .tag { font-size: 11.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-soft); }
.flourish { max-width: 48vw; }
.flourish path { stroke-dasharray: 240; stroke-dashoffset: 0; animation: sovraDraw 2.4s ease-out both; }

/* ---- Section scaffolding ---- */
.section { padding-top: 70px; padding-bottom: 70px; }
.kicker { font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: var(--accent); margin-bottom: 18px; }
.h2 { font-weight: 400; font-size: clamp(1.7rem, 3.4vw, 2.7rem); line-height: 1.14; letter-spacing: -.01em; margin: 0; text-wrap: balance; }
.h2 span { color: var(--accent); }

/* ---- Concept ---- */
.concept__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: start; }
.concept__body { font-size: 1.08rem; line-height: 1.68; color: var(--ink-soft); text-wrap: pretty; }
.concept__body p { margin: 0 0 16px; }
.concept__body p:last-child { margin: 0; }
.concept__body strong { color: var(--ink); font-weight: 600; }

/* ---- Security ---- */
.security { background: var(--paper2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.security .h2 { margin-bottom: 48px; max-width: 22ch; }
.diagram { display: grid; grid-template-columns: 1fr auto 1fr; gap: 22px; align-items: stretch; margin-bottom: 56px; }
.shard { background: var(--paper); border: 1px solid var(--line); border-radius: 16px; padding: 28px; }
.shard__label { font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-soft); }
.shard__machine { font-size: 1.35rem; margin: 8px 0 22px; color: var(--ink); }
.shard__val { font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 600; color: var(--accent); letter-spacing: .02em; }
.shard__note { font-size: 11.5px; color: var(--ink-soft); margin-top: 10px; }
.gate { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; min-width: 96px; }
.gate__label { font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-soft); text-align: center; line-height: 1.5; }
.threats { display: grid; gap: 0; border-top: 1px solid var(--line); }
.threat { display: grid; grid-template-columns: auto 1fr auto; gap: 24px; align-items: baseline; padding: 22px 4px; border-bottom: 1px solid var(--line); }
.threat__idx { font-size: 12px; color: var(--accent); }
.threat__title { font-size: 1.2rem; color: var(--ink); }
.threat__desc { font-size: 1rem; color: var(--ink-soft); margin-top: 4px; }
.threat__verdict { font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-soft); white-space: nowrap; }

/* ---- Flow ---- */
.flow .h2 { margin-bottom: 48px; }
.flow__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.step { border-top: 2px solid var(--accent); padding-top: 22px; }
.step__label { font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-soft); margin-bottom: 14px; }
.step__title { font-size: 1.3rem; color: var(--ink); margin-bottom: 10px; }
.step p { font-size: 1rem; line-height: 1.6; color: var(--ink-soft); margin: 0; }

/* ---- Footer ---- */
.footer { background: var(--ink); color: var(--paper); }
.footer__inner { padding-top: 72px; padding-bottom: 72px; }
.footer h2 { font-weight: 400; font-size: clamp(1.9rem, 4vw, 3rem); line-height: 1.1; margin: 0 0 22px; max-width: 20ch; color: var(--paper); text-wrap: balance; }
.footer__sub { font-size: 1.1rem; line-height: 1.6; color: var(--paper); opacity: .7; max-width: 52ch; margin: 0 0 34px; }
.footer__meta {
  margin-top: 64px; padding-top: 26px; border-top: 1px solid rgba(245, 241, 233, 0.16);
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--paper);
}
.footer__brand { display: flex; align-items: center; gap: 11px; opacity: .85; }
.footer__brand span { letter-spacing: .22em; }
.footer__note { opacity: .6; }

@keyframes sovraDraw { from { stroke-dashoffset: 240; } to { stroke-dashoffset: 0; } }
@keyframes sovraPulse { 0%, 100% { opacity: .35; } 50% { opacity: 1; } }

/* ---- Responsive ---- */
@media (max-width: 860px) {
  .nav { gap: 18px; }
  .concept__grid { grid-template-columns: 1fr; gap: 24px; }
  .diagram { grid-template-columns: 1fr; }
  .gate { flex-direction: row; min-width: 0; }
  .flow__grid { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 620px) {
  .nav a:not(.nav__btn) { display: none; }
  .flourish { display: none; }
}