/* Grdflow design tokens — Brick · Plex
   Palettes: brick (default light), charcoal (dark), mustard (alt warm)
*/

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600;700&display=swap');

/* ── BRICK (default) — beige + black + orange ─────── */
:root, [data-palette="brick"] {
  --bg:        #e8e3d2;
  --bg-soft:   #ddd7c4;
  --bg-card:   #f0ebd9;
  --ink:       #14140f;
  --ink-2:     #2a2823;
  --muted:     rgba(20,20,15,.62);
  --faint:     rgba(20,20,15,.34);
  --rule:      rgba(20,20,15,.18);
  --rule-2:    rgba(20,20,15,.08);
  --accent:    #ff4f2f;
  --accent-2:  #14140f;
  --hi:        #14140f;
  --on-accent: #f0ece0;
  --logo-tile: #14140f;
}

/* ── CHARCOAL — dark beige-ink + orange ───────────── */
[data-palette="charcoal"] {
  --bg:        #14140f;
  --bg-soft:   #1c1c17;
  --bg-card:   #2a2a23;
  --ink:       #f0ece0;
  --ink-2:     #d4cfc0;
  --muted:     rgba(240,236,224,.58);
  --faint:     rgba(240,236,224,.32);
  --rule:      rgba(240,236,224,.14);
  --rule-2:    rgba(240,236,224,.07);
  --accent:    #ff4f2f;
  --accent-2:  #f0ece0;
  --hi:        #f0ece0;
  --on-accent: #14140f;
  --logo-tile: #d4cfc0;
}

/* ── BASE ────────────────────────────────────────── */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  background: var(--bg);
  color: var(--ink);
  font-size: 14.5px;
  font-weight: 500;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background .35s ease, color .35s ease;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
img, svg { display: block; max-width: 100%; }
ul, ol { list-style: none; }
::selection { background: var(--accent); color: var(--on-accent); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ── TYPE ─────────────────────────────────────────── */
.serif, .mono { font-family: 'IBM Plex Mono', monospace; }
.eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px; font-weight: 500;
  text-transform: uppercase; letter-spacing: .14em;
  color: var(--muted);
}

:root { --font-display: 'IBM Plex Mono', monospace; }
h1, h2, h3, h4, .h-display {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -.02em;
  line-height: 1;
}

/* ── LAYOUT ──────────────────────────────────────── */
.wrap { max-width: 1320px; margin: 0 auto; padding: 0 28px; }
.wrap-narrow { max-width: 880px; margin: 0 auto; padding: 0 28px; }

/* ── NAV ─────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 28px;
  background: var(--bg);
  border-bottom: 2px solid var(--ink);
}
.nav-brand {
  display: flex; align-items: center; gap: 10px;
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -.02em;
  text-transform: lowercase;
}
.nav-brand .icon { width: 28px; height: 28px; display: block; flex-shrink: 0; color: var(--logo-tile); }
.nav-brand .icon .t,
.foot-brand .foot-mark .t { transform-box: fill-box; transform-origin: center; }
.nav-brand:hover    .icon      .t1, .nav-brand.is-anim    .icon      .t1,
.foot-brand:hover   .foot-mark .t1, .foot-brand.is-anim   .foot-mark .t1 { animation: tile-rise   .38s cubic-bezier(.22,1,.36,1)    0s    backwards; }
.nav-brand:hover    .icon      .t2, .nav-brand.is-anim    .icon      .t2,
.foot-brand:hover   .foot-mark .t2, .foot-brand.is-anim   .foot-mark .t2 { animation: tile-rise   .38s cubic-bezier(.22,1,.36,1)    .08s  backwards; }
.nav-brand:hover    .icon      .t3, .nav-brand.is-anim    .icon      .t3,
.foot-brand:hover   .foot-mark .t3, .foot-brand.is-anim   .foot-mark .t3 { animation: tile-rise   .38s cubic-bezier(.22,1,.36,1)    .16s  backwards; }
.nav-brand:hover    .icon      .t4, .nav-brand.is-anim    .icon      .t4,
.foot-brand:hover   .foot-mark .t4, .foot-brand.is-anim   .foot-mark .t4 { animation: tile-rise   .38s cubic-bezier(.22,1,.36,1)    .24s  backwards; }
.nav-brand:hover    .icon      .t5, .nav-brand.is-anim    .icon      .t5,
.foot-brand:hover   .foot-mark .t5, .foot-brand.is-anim   .foot-mark .t5 { animation: tile-bounce .50s cubic-bezier(.34,1.56,.64,1) .32s  backwards; }
@keyframes tile-rise {
  from { opacity: 0; transform: translateY(-10px) scale(.55); }
  to   { opacity: 1; transform: none; }
}
@keyframes tile-bounce {
  from { opacity: 0; transform: translateY(-14px) scale(.35); }
  60%  { opacity: 1; transform: translateY(2px) scale(1.12); }
  to   { opacity: 1; transform: none; }
}
.nav-links { display: flex; gap: 0; }
.nav-links a {
  position: relative;
  padding: 6px 14px;
  font-size: 11px;
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--muted);
  transition: color .15s;
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-links a.active::after {
  content: ''; position: absolute; left: 14px; right: 14px; bottom: -2px;
  height: 2px; background: var(--accent);
}
.nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px;
  background: var(--ink); color: var(--bg);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .12em;
  border: 2px solid var(--ink);
  transition: background .15s, color .15s;
}
.nav-cta:hover { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.nav-cta .arr { transition: transform .2s; }
.nav-cta:hover .arr { transform: translate(2px, -2px); }

/* ── BUTTONS ─────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 18px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .12em;
  border-radius: 0;
  border: 2px solid var(--ink);
  transition: background .15s, color .15s;
  white-space: nowrap;
}
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--bg); }
.btn .arr { width: 12px; height: 12px; transition: transform .2s; }
.btn:hover .arr { transform: translate(3px, -3px); }

/* ── FOOTER ──────────────────────────────────────── */
.foot {
  border-top: 2px solid var(--ink);
  padding: 56px 28px 28px;
  margin-top: 120px;
  background: var(--bg-soft);
}
.foot-grid {
  max-width: 1320px; margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px;
}
.foot-brand-block { display: flex; flex-direction: column; gap: 14px; }
.foot-brand {
  position: relative;
  display: inline-flex; align-items: center; gap: 24px;
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 700;
  font-size: 84px; line-height: .9; letter-spacing: -.04em;
  color: var(--ink);
  text-transform: lowercase;
  align-self: flex-start;
}
.foot-tagline {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: .02em;
  text-transform: lowercase;
}
.foot-tagline i { font-style: normal; color: var(--accent); }
.foot-brand i { font-style: normal; color: var(--accent); }
.foot-brand .foot-mark {
  width: 1em; height: 1em;
  display: block; flex-shrink: 0;
  opacity: .9;
  color: var(--logo-tile);
}
.foot-col h5 {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: .14em;
  color: var(--faint); margin-bottom: 16px;
}
.foot-col a, .foot-col p {
  display: block; font-size: 13px; color: var(--muted); margin-bottom: 8px;
  font-family: 'IBM Plex Mono', monospace;
  transition: color .15s;
}
.foot-col a:hover { color: var(--accent); }
.foot-bottom {
  max-width: 1320px; margin: 48px auto 0;
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 24px; border-top: 1px solid var(--rule);
  font-family: 'IBM Plex Mono', monospace; font-size: 11px; color: var(--faint);
  text-transform: uppercase; letter-spacing: .12em;
}

/* ── REVEAL ──────────────────────────────────────── */
.rv { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s ease; }
.rv.in { opacity: 1; transform: none; }
.rv.d1 { transition-delay: .08s; } .rv.d2 { transition-delay: .16s; }
.rv.d3 { transition-delay: .24s; } .rv.d4 { transition-delay: .32s; }

/* ── CURSOR GLOW ─────────────────────────────────── */
.cursor-glow {
  position: fixed; pointer-events: none; z-index: 1;
  width: 480px; height: 480px; border-radius: 50%;
  background: radial-gradient(circle, color-mix(in oklab, var(--accent) 18%, transparent) 0%, transparent 60%);
  transform: translate(-50%, -50%);
  transition: opacity .3s;
  mix-blend-mode: multiply;
}
[data-palette="charcoal"] .cursor-glow { mix-blend-mode: screen; }
body.no-cursor-glow .cursor-glow { display: none; }

/* ── PALETTE SWITCHER ────────────────────────────── */
.palette-bar {
  position: fixed; bottom: 24px; right: 24px; z-index: 60;
  display: flex; gap: 4px; padding: 6px;
  background: var(--bg-card); border: 1px solid var(--rule);
  border-radius: 999px;
  box-shadow: 0 8px 24px rgba(0,0,0,.08);
}
.palette-bar button {
  width: 28px; height: 28px; border-radius: 50%;
  cursor: pointer; border: 2px solid transparent;
  transition: transform .15s, border-color .15s;
}
.palette-bar button:hover { transform: scale(1.1); }
.palette-bar button.active { border-color: var(--ink); }
.palette-bar [data-palette-btn="brick"]    { background: linear-gradient(135deg, #e8e3d5 50%, #c43b1f 50%); }
.palette-bar [data-palette-btn="charcoal"] { background: linear-gradient(135deg, #1a1916 50%, #ff4f2f 50%); }

/* ── MOBILE NAV (hamburger + drawer) ────────────── */
.nav-toggle {
  display: none;
  position: relative;
  z-index: 110;
  width: 40px; height: 40px;
  flex-direction: column; align-items: center; justify-content: center;
  gap: 5px;
  background: transparent;
  border: 2px solid var(--ink);
  margin-left: 8px;
}
.nav-toggle-bar {
  display: block;
  width: 18px; height: 2px;
  background: var(--ink);
  transition: transform .25s ease, opacity .2s;
  transform-origin: center;
}
body.nav-open .nav-toggle-bar:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
body.nav-open .nav-toggle-bar:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }

.nav-drawer {
  position: fixed; inset: 0;
  background: var(--bg);
  z-index: 100;
  display: flex; flex-direction: column;
  padding: 88px 28px 32px;
  transform: translateX(100%);
  transition: transform .35s cubic-bezier(.22,1,.36,1), visibility 0s linear .35s;
  visibility: hidden;
}
body.nav-open .nav-drawer {
  transform: none;
  visibility: visible;
  transition: transform .35s cubic-bezier(.22,1,.36,1), visibility 0s;
}
.nav-drawer-inner { display: flex; flex-direction: column; height: 100%; }
.nav-drawer a {
  display: flex; align-items: center; justify-content: space-between;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 32px;
  font-weight: 400;
  letter-spacing: -.02em;
  text-transform: uppercase;
  color: var(--ink);
  padding: 18px 0;
  border-top: 1px solid var(--rule);
}
.nav-drawer a:last-of-type { border-bottom: 1px solid var(--rule); }
.nav-drawer a.active { color: var(--accent); }
.nav-drawer a.active::after { content: '·'; color: var(--accent); }
.nav-drawer .nav-drawer-cta {
  margin-top: auto;
  align-self: flex-start;
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px;
  background: var(--ink); color: var(--bg);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .12em;
  border: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}
.nav-drawer .nav-drawer-cta:hover { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
body.nav-open { overflow: hidden; }

/* ── RESPONSIVE ──────────────────────────────────── */
@media (max-width: 860px) {
  .nav { z-index: 110; }
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .foot-brand { font-size: 56px; grid-column: 1 / -1; }
}
@media (min-width: 861px) {
  .nav-drawer { display: none; }
}