/*
 * anvil.css
 * Shared design-system foundation for the Anvil marketing site.
 * Covers: tokens, reset, layout, eyebrow, nav, buttons, footer, reveal.
 * Page-specific component CSS stays inline per page.
 * Source of truth: software/anvil/anvil-home/design_handoff_anvil_site/Anvil Home (Premium).html
 */

/* ============ TOKENS ============ */
:root {
  --bg: #050505;
  --bg-2: #0a0a0a;
  --bg-3: #0f0f0f;
  --text: #fff;
  --text-2: rgba(255,255,255,0.78);
  --text-3: rgba(255,255,255,0.55);
  --text-4: rgba(255,255,255,0.32);
  --border: rgba(255,255,255,0.06);
  --border-2: rgba(255,255,255,0.12);
  --acc: #D4950A;
  --acc-hi: #E8A820;
  --crit: #f0654b;
  --good: #3ec98a;
  --font-d: 'Inter', system-ui, -apple-system, sans-serif;
  --font-b: 'Inter', system-ui, -apple-system, sans-serif;
  --font-m: 'JetBrains Mono', ui-monospace, SF Mono, Menlo, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ============ RESET ============ */
* { box-sizing: border-box; margin: 0; padding: 0; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-b);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

/* ============ LAYOUT ============ */
.container { max-width: 1240px; margin: 0 auto; padding: 0 2rem; }
.wide { max-width: 1440px; }

/* ============ EYEBROW ============ */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-m);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-4);
}
.eyebrow .tri { color: var(--acc); font-size: 0.6rem; }
.eyebrow.gold { color: var(--acc); }

/* ============ NAV ============ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(5,5,5,0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.nav-left {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  min-width: 0;
}
.nav-back {
  font-family: var(--font-m);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-3);
  transition: color .2s;
}
.nav-back:hover { color: #fff; }
.nav-div { width: 1px; height: 18px; background: var(--border-2); }
.brand { display: flex; align-items: center; gap: 0.7rem; }
.brand-rule { width: 22px; height: 22px; background: url("/assets/pylon-brand-marks/anvil/anvil-icon.svg") center/contain no-repeat; transform: none; flex: none; }
.brand-name {
  font-family: var(--font-d);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.nav-tabs { display: flex; align-items: center; gap: 1.5rem; margin-left: 0.4rem; }
.nav-tab { font-size: 0.8125rem; color: var(--text-3); transition: color .2s; }
.nav-tab:hover { color: #fff; }
.nav-tab.active { color: #fff; }
.nav-right { display: flex; align-items: center; gap: 0.9rem; }
.nav-login {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-2);
  transition: color .2s;
}
.nav-login:hover { color: var(--acc-hi); }
@media (max-width: 920px) { .nav-tabs, .nav-back, .nav-div { display: none; } }
.nav-toggle { display: none; }
.nav-mobile { display: none; }
@media (max-width: 920px) {
  .nav-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 38px; height: 34px; padding: 0; margin-left: 0.2rem;
    border: 1px solid var(--border-2); border-radius: 8px;
    background: rgba(255,255,255,0.03); color: var(--text); cursor: pointer;
    transition: border-color .2s;
  }
  .nav-toggle:hover { border-color: var(--acc); }
  .nav-toggle .bar { display: block; width: 16px; height: 1.5px; background: currentColor; transition: transform .2s var(--ease), opacity .2s; }
  .nav-toggle .bar + .bar { margin-top: 4px; }
  .nav-toggle.open .bar:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
  .nav-toggle.open .bar:nth-child(2) { opacity: 0; }
  .nav-toggle.open .bar:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }
  .nav-mobile.open {
    display: block; position: absolute; left: 0; right: 0; top: 100%;
    background: rgba(5,5,5,0.97); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
  }
  .nav-mobile .container { display: flex; flex-direction: column; padding-top: 0.4rem; padding-bottom: 1rem; }
  .nav-mobile a { font-family: var(--font-d); font-size: 0.95rem; color: var(--text-2); padding: 0.8rem 0; border-top: 1px solid var(--border); transition: color .2s; }
  .nav-mobile a:first-child { border-top: 0; }
  .nav-mobile a.active, .nav-mobile a:hover { color: #fff; }
}
@media (prefers-reduced-motion: reduce) { .nav-toggle .bar { transition: none; } }
@media (max-width: 560px) {
  .nav-login { display: none; }
  .nav-right .btn-primary { font-size: 0.82rem; padding: 0.5rem 0.85rem; }
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-d);
  font-weight: 700;
  letter-spacing: -0.005em;
  border-radius: 8px;
  cursor: pointer;
  transition: all .2s var(--ease);
  border: 0;
}
.btn-primary {
  background: var(--acc);
  color: #0a0a0a;
  font-size: 0.875rem;
  padding: 0.6rem 1.05rem;
}
.btn-primary:hover { background: var(--acc-hi); transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid var(--border-2);
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 0.7rem 1.15rem;
}
.btn-ghost:hover { border-color: var(--acc); background: rgba(212,149,10,0.04); }
.btn-lg { font-size: 1rem; padding: 0.85rem 1.5rem; }

/* ============ FOOTER ============ */
.ft { border-top: 1px solid var(--border); padding: 4rem 0 2.4rem; }
.ft-top {
  display: grid;
  grid-template-columns: 1.4fr 2fr;
  gap: 3rem;
  padding-bottom: 3rem;
}
@media (max-width: 760px) { .ft-top { grid-template-columns: 1fr; gap: 2rem; } }
.ft-brand { display: flex; flex-direction: column; align-items: flex-start; gap: 0.7rem; }
.ft-mark { display: flex; align-items: center; gap: 0.6rem; }
.ft-tag {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--text-3);
  max-width: 280px;
  margin-top: 0.3rem;
}
.ft-nav { display: flex; gap: clamp(2rem, 5vw, 4rem); flex-wrap: wrap; }
.ft-col { display: flex; flex-direction: column; gap: 0.6rem; }
.ft-col .lab {
  font-family: var(--font-m);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-4);
  margin-bottom: 0.35rem;
}
.ft-col a { font-size: 0.875rem; color: var(--text-3); transition: color .2s; }
.ft-col a:hover { color: #fff; }
.ft-soon {
  font-family: var(--font-m);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-4);
  margin-left: 0.35rem;
}
.ft-bot { padding-top: 2rem; border-top: 1px solid var(--border); font-size: 0.75rem; color: var(--text-4); }

/* ============ SECTION PRIMITIVES ============ */
.sec { padding: 6.5rem 0; border-top: 1px solid var(--border); }
.sec-head { max-width: 680px; }
.sec-head.center { margin: 0 auto; text-align: center; }
.sec-title {
  font-family: var(--font-d);
  font-size: clamp(1.9rem, 3.8vw, 2.9rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 1.1rem 0 1.1rem;
  text-wrap: balance;
}
.sec-sub {
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--text-2);
  text-wrap: pretty;
}

/* ============ REVEAL ============ */
.rv {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .rv { opacity: 1 !important; transform: none !important; transition: none !important; }
}