:root {
  --bg: #0b0b0d;
  --bg-raise: #101014;
  --ink: #e8e5de;
  --ink-dim: #9a9791;
  --ink-faint: #56555a;
  --line: #232328;
  --accent: #eb0104;
  --chrome-a: #f4f2ec;
  --chrome-b: #8a8f99;
  --chrome-c: #f7f5f0;
  --chrome-d: #5c6069;
  --metal-a: #f4f2ec;
  --metal-b: #8a8f99;
  --metal-c: #f7f5f0;
  --metal-d: #5c6069;
  --metal-edge: #b9bcc2;
  --btn-ink: #101013;
  --btn-shadow: 0 0 0 1px rgba(244, 242, 236, 0.14), 0 10px 34px -12px rgba(220, 222, 228, 0.35);
  --btn-shadow-hover: 0 0 0 1px rgba(244, 242, 236, 0.22), 0 16px 44px -12px rgba(220, 222, 228, 0.5);
  --glow-rgb: 240, 240, 244;
  --display: "Geologica", "Helvetica Neue", Arial, sans-serif;
  --grotesk: var(--display);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --bg: #f3f5f7;
    --bg-raise: #ffffff;
    --ink: #16161a;
    --ink-dim: #59616b;
    --ink-faint: #818a95;
    --line: #d9dee5;
    --chrome-a: #2a2a2e;
    --chrome-b: #6b6e76;
    --chrome-c: #1c1c1f;
    --chrome-d: #4a4b52;
    --metal-a: #3c3d43;
    --metal-b: #1b1c21;
    --metal-c: #44454c;
    --metal-d: #202128;
    --metal-edge: #4b4d55;
    --btn-ink: #f4f6f8;
    --btn-shadow: 0 0 0 1px rgba(255, 255, 255, 0.05), 0 10px 30px -12px rgba(18, 18, 26, 0.32);
    --btn-shadow-hover: 0 0 0 1px rgba(255, 255, 255, 0.09), 0 18px 42px -14px rgba(18, 18, 26, 0.46);
    --glow-rgb: 22, 22, 30;
  }
}
:root[data-theme="light"] {
  --bg: #f3f5f7;
  --bg-raise: #ffffff;
  --ink: #16161a;
  --ink-dim: #59616b;
  --ink-faint: #818a95;
  --line: #d9dee5;
  --chrome-a: #2a2a2e;
  --chrome-b: #6b6e76;
  --chrome-c: #1c1c1f;
  --chrome-d: #4a4b52;
  --metal-a: #3c3d43;
  --metal-b: #1b1c21;
  --metal-c: #44454c;
  --metal-d: #202128;
  --metal-edge: #4b4d55;
  --btn-ink: #f4f6f8;
  --btn-shadow: 0 0 0 1px rgba(255, 255, 255, 0.05), 0 10px 30px -12px rgba(18, 18, 26, 0.32);
  --btn-shadow-hover: 0 0 0 1px rgba(255, 255, 255, 0.09), 0 18px 42px -14px rgba(18, 18, 26, 0.46);
  --glow-rgb: 22, 22, 30;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
*, *::before, *::after {
  transition: background-color 0.35s var(--ease), color 0.35s var(--ease), border-color 0.35s var(--ease);
}

html { scroll-behavior: smooth; }
section[id] { scroll-margin-top: 4.5rem; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--grotesk);
  font-weight: 500;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: #fff; }

em { font-family: var(--display); font-style: normal; font-weight: 600; }
p em { font-size: 1.18em; line-height: 1; }

.grain {
  position: fixed; inset: -50%;
  width: 200%; height: 200%;
  pointer-events: none;
  z-index: 999;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='2'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain-shift 0.9s steps(4) infinite;
}
@keyframes grain-shift {
  0% { transform: translate(0, 0); }
  25% { transform: translate(-2%, 1%); }
  50% { transform: translate(1%, -2%); }
  75% { transform: translate(-1%, 2%); }
  100% { transform: translate(2%, -1%); }
}

.chrome {
  background: linear-gradient(115deg,
    var(--chrome-a) 0%, var(--chrome-b) 38%,
    var(--chrome-c) 55%, var(--chrome-d) 78%, var(--chrome-a) 100%);
  background-size: 220% 220%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: chrome-flow 7s ease-in-out infinite;
}
@keyframes chrome-flow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.js .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  transition-delay: var(--d, 0s);
}
.js .reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .grain { animation: none; }
  html { scroll-behavior: auto; }
}

.btn {
  display: inline-flex; align-items: center; gap: 0.6em;
  font-family: var(--grotesk);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  border-radius: 0.25rem;
  padding: 1.05em 2.1em;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease),
              background-color 0.4s var(--ease), color 0.4s var(--ease);
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }

.btn-chrome {
  color: #fff;
  background: var(--accent);
  background-size: 180% 180%;
  border: none;
  box-shadow: 0 0 0 1px rgba(235, 1, 4, 0.2), 0 10px 34px -12px rgba(235, 1, 4, 0.65);
}
.btn-chrome:hover {
  background-position: 90% 50%;
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(235, 1, 4, 0.3), 0 16px 44px -12px rgba(235, 1, 4, 0.85);
}
.btn-chrome { position: relative; overflow: hidden; }
.btn-chrome::after {
  content: "";
  position: absolute; top: 0; bottom: 0; left: 0;
  width: 45%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.65), transparent);
  transform: translateX(-130%) skewX(-18deg);
  transition: transform 0.7s ease;
  pointer-events: none;
}
.btn-chrome:hover::after { transform: translateX(320%) skewX(-18deg); }

.btn-ghost {
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line);
}
.btn-ghost:hover { border-color: var(--ink-dim); transform: translateY(-2px); }

.btn-small { padding: 0.7em 1.5em; font-size: 0.75rem; }
.btn-big { padding: 1.35em 2.9em; font-size: 1rem; }

.tg-icon { width: 1.15em; height: 1.15em; fill: currentColor; flex: none; }