/* ============================================================
   Fabrica — landing page
   Warm-ember "workshop / forge" theme. Self-contained, static.
   ============================================================ */

:root {
  /* Surfaces — dark, warm */
  --bg:            #131210;
  --bg-2:          #1a1714;
  --surface:       rgba(255, 244, 230, 0.035);
  --surface-2:     rgba(255, 244, 230, 0.06);
  --border:        rgba(255, 236, 214, 0.10);
  --border-strong: rgba(255, 236, 214, 0.18);

  /* Text — parchment */
  --text:    #f4ede2;
  --muted:   #b6a995;
  --faint:   #8a7e6e;

  /* Ember accent (Claude / build side) */
  --ember:      #ff8a4c;
  --ember-soft: #ffb267;
  --ember-deep: #ef5f2b;

  /* Cool accent (Codex / review side — cross-vendor contrast) */
  --cool:      #7aa7ff;

  --grad: linear-gradient(135deg, var(--ember-soft) 0%, var(--ember) 45%, var(--ember-deep) 100%);

  --radius:    16px;
  --radius-sm: 11px;
  --maxw:      1080px;

  --serif: "Fraunces", "Iowan Old Style", Georgia, "Times New Roman", serif;
  --sans:  "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --shadow: 0 24px 60px -28px rgba(0, 0, 0, 0.7);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Ambient forge-glow + faint grid, fixed behind everything */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(60% 50% at 50% -8%, rgba(255, 138, 76, 0.18), transparent 70%),
    radial-gradient(40% 40% at 88% 12%, rgba(122, 167, 255, 0.10), transparent 70%),
    radial-gradient(50% 60% at 8% 30%, rgba(239, 95, 43, 0.08), transparent 70%);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 236, 214, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 236, 214, 0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(80% 60% at 50% 0%, #000 30%, transparent 85%);
  -webkit-mask-image: radial-gradient(80% 60% at 50% 0%, #000 30%, transparent 85%);
  pointer-events: none;
}

a { color: inherit; text-decoration: none; }

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: linear-gradient(to bottom, rgba(19, 18, 16, 0.85), rgba(19, 18, 16, 0.35));
  border-bottom: 1px solid var(--border);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.28rem;
  letter-spacing: -0.01em;
}
.brand svg { width: 26px; height: 26px; display: block; }
.brand .sub {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
  border-left: 1px solid var(--border-strong);
  padding-left: 11px;
  margin-left: 3px;
}
@media (max-width: 540px) { .brand .sub { display: none; } }

/* ---------- Badge / chip ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--muted);
}
.chip .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--ember);
  flex: 0 0 auto;
  /* Soft glow that breathes via opacity — it does NOT expand a ring outward,
     so it can never bleed into the label text beside it. */
  box-shadow: 0 0 7px 0 rgba(255, 138, 76, 0.7);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1;    box-shadow: 0 0 6px 0 rgba(255, 138, 76, 0.5); }
  50%      { opacity: 0.5;  box-shadow: 0 0 10px 0 rgba(255, 138, 76, 0.85); }
}
.chip--ember {
  color: var(--text);
  border-color: rgba(255, 138, 76, 0.4);
  background: linear-gradient(180deg, rgba(255, 138, 76, 0.16), rgba(255, 138, 76, 0.05));
}

/* ---------- Hero ---------- */
.hero {
  text-align: center;
  /* padding-block only — keep the horizontal gutters from .wrap intact */
  padding-block: clamp(72px, 13vh, 132px) clamp(56px, 9vh, 96px);
}
.eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--ember-soft);
  margin: 26px 0 0;
}
.hero h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(2rem, 9vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 18px auto 0;
  max-width: min(16ch, 100%);
  overflow-wrap: break-word;
}
.hero h1 .accent {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p.lead {
  font-size: clamp(1.05rem, 2.1vw, 1.3rem);
  color: var(--muted);
  max-width: 60ch;
  margin: 24px auto 0;
}
.hero .cta {
  margin-top: 34px;
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}
.hero .cta .note {
  font-size: 0.92rem;
  color: var(--faint);
}

/* ---------- The loop ---------- */
.loop {
  margin: 46px auto 0;
  max-width: 1000px;
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 5px;
  flex-wrap: wrap;
}
.loop .node {
  flex: 1 1 0;
  min-width: 104px;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 15px 10px;
  text-align: center;
  position: relative;
}
.loop .node .k {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
  display: block;
  margin-bottom: 5px;
}
.loop .node .v {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 600;
}
.loop .node--merge {
  border-color: rgba(255, 138, 76, 0.35);
  background: linear-gradient(180deg, rgba(255, 138, 76, 0.12), rgba(255, 138, 76, 0.03));
}
.loop .arrow {
  align-self: center;
  color: var(--faint);
  font-size: 1.1rem;
  padding: 0 2px;
  flex: 0 0 auto;
}
.loop-caption {
  text-align: center;
  margin: 16px auto 0;
  font-size: 0.9rem;
  color: var(--faint);
}
@media (max-width: 720px) {
  .loop { flex-direction: column; align-items: stretch; }
  .loop .arrow { transform: rotate(90deg); padding: 2px 0; }
  .loop .node { min-width: 0; }
}

/* ---------- Sections ---------- */
section { padding: clamp(56px, 9vh, 104px) 0; }
.section-head { max-width: 60ch; margin-bottom: 40px; }
.section-head .kicker {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ember-soft);
}
.section-head h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.9rem, 4vw, 2.85rem);
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 12px 0 0;
}
.section-head p {
  color: var(--muted);
  font-size: 1.08rem;
  margin: 14px 0 0;
}
.divider { height: 1px; background: var(--border); border: 0; margin: 0; }

/* ---------- Team: two altitudes, four roles ---------- */
.lanes { display: grid; gap: 30px; }
.lane-head {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.lane-head .altitude {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.2rem;
}
.lane-head .bus {
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--faint);
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
}
.lane-head .bus b { color: var(--muted); font-weight: 600; }

.pair {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: stretch;
  gap: 16px;
}
.pair .connector {
  align-self: center;
  color: var(--ember-soft);
  font-size: 1.5rem;
  opacity: 0.8;
}
@media (max-width: 760px) {
  .pair { grid-template-columns: 1fr; gap: 12px; }
  .pair .connector { transform: rotate(90deg); justify-self: center; }
}

.card {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 26px 24px;
  position: relative;
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}
.card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  background: var(--surface-2);
}
.card .role {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
}
.card .role .vendor {
  padding: 2px 9px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
}
.card.is-claude .vendor { color: var(--ember-soft); border-color: rgba(255, 138, 76, 0.35); }
.card.is-codex  .vendor { color: var(--cool);       border-color: rgba(122, 167, 255, 0.35); }
.card h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.6rem;
  margin: 12px 0 8px;
}
.card p { color: var(--muted); font-size: 0.98rem; margin: 0; }
.card::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--grad);
  opacity: 0;
  transition: opacity 0.25s ease;
}
.card.is-codex::after { background: linear-gradient(90deg, var(--cool), #9bbcff); }
.card:hover::after { opacity: 1; }

.bus-note {
  margin-top: 22px;
  text-align: center;
  font-family: var(--serif);
  font-size: 1.15rem;
  color: var(--muted);
}
.bus-note b { color: var(--text); font-weight: 600; }

/* ---------- Principles ---------- */
.principles {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
@media (max-width: 720px) { .principles { grid-template-columns: 1fr; } }
.principle {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 28px 26px;
}
.principle .num {
  font-family: var(--serif);
  font-size: 0.95rem;
  color: var(--ember-soft);
  font-weight: 600;
}
.principle h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.42rem;
  margin: 6px 0 10px;
}
.principle p { color: var(--muted); margin: 0; font-size: 1rem; }

/* ---------- Closing / coming soon ---------- */
.closing {
  text-align: center;
  /* padding-block only — keep the horizontal gutters from .wrap intact */
  padding-block: clamp(72px, 12vh, 130px);
}
.closing h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(2rem, 5vw, 3.4rem);
  letter-spacing: -0.02em;
  margin: 22px auto 0;
  max-width: 18ch;
}
.closing h2 .accent {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.closing p { color: var(--muted); max-width: 52ch; margin: 18px auto 0; font-size: 1.1rem; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 34px 0;
}
.site-footer .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--faint);
  font-size: 0.9rem;
}
.site-footer .motto { font-family: var(--serif); font-style: italic; }
.site-footer .credit {
  color: var(--muted);
  border-bottom: 1px solid var(--border-strong);
  transition: color 0.2s ease, border-color 0.2s ease;
}
.site-footer .credit:hover {
  color: var(--ember-soft);
  border-color: var(--ember-soft);
}

/* ---------- Reveal animation ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-reveal].in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  .chip .dot { animation: none; }
}

/* Focus visibility for keyboard users */
:focus-visible {
  outline: 2px solid var(--ember);
  outline-offset: 3px;
  border-radius: 4px;
}