@font-face {
  font-family: "Inter Tight";
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url("../fonts/inter-tight-var-latin-v9.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --night: #2a2930;
  --night-deep: #1f1e24;
  /* One page background: starts as the flower photo's own base colour and deepens under the hero. */
  --page: #29252d;
  --page-deep: #16141a;
  --panel: #0f0e12;
  --bone: #ece5d8;
  --ash: #8f8b94;
  --ash-dim: #77737d;
  --glow: #fff7ea;
  --ink: #17161b;
  --hairline: rgba(236, 229, 216, 0.12);
  --text-soft: rgba(236, 229, 216, 0.66);

  --font: "Inter Tight", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
  --gutter: clamp(1rem, 0.5rem + 2.5vw, 3rem);
  --container: 75rem;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 160ms;
}

* { box-sizing: border-box; }
html { background: var(--page-deep); }
body {
  margin: 0;
  background: linear-gradient(to bottom, var(--page) 0, var(--page) 85svh, var(--page-deep) 165svh) var(--page-deep);
  color: var(--bone);
  font-family: var(--font);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
:focus-visible { outline: 2px solid var(--bone); outline-offset: 4px; border-radius: 4px; }

.container { width: min(100% - 2 * var(--gutter), var(--container)); margin-inline: auto; }

.grain { position: relative; }
.grain::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.5 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  opacity: 0.05;
  mix-blend-mode: screen;
}

.eyebrow {
  margin: 0 0 1rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ash);
}

/* ---------- nav ---------- */
.nav {
  position: absolute;
  inset: 0 0 auto 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: clamp(1rem, 0.7rem + 1vw, 1.75rem) var(--gutter);
}
.brand-mark {
  display: block;
  flex: none;
  width: 1.75rem;
  aspect-ratio: 395 / 425;
  background: currentColor;
  -webkit-mask: url("../assets/ortalabs-mark.svg") center / contain no-repeat;
          mask: url("../assets/ortalabs-mark.svg") center / contain no-repeat;
}
.nav .brand { display: inline-flex; align-items: center; gap: 0.5rem; font-weight: 800; letter-spacing: -0.04em; font-size: 1.15rem; text-decoration: none; }
.nav .brand-name > span { font-weight: 400; opacity: 0.6; }
.nav ul { display: flex; gap: clamp(1rem, 0.5rem + 1.5vw, 2rem); list-style: none; margin: 0; padding: 0; }
.nav a.link { text-decoration: none; font-size: 0.95rem; opacity: 0.75; transition: opacity var(--duration-fast); }
.nav a.link:hover, .nav a.link:focus-visible { opacity: 1; }
@media (max-width: 640px) {
  .nav .link-optional { display: none; }
}

/* ---------- shared pieces ---------- */
.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border: 1px solid rgba(255, 247, 234, 0.45);
  font-size: 0.78rem;
  line-height: 1.3;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  color: rgba(255, 247, 234, 0.92);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1.5rem;
  padding-bottom: clamp(1rem, 0.8rem + 0.6vw, 1.5rem);
  border-bottom: 1px solid var(--hairline);
}
.section-head h2 {
  margin: 0;
  font-size: clamp(1.5rem, 1.1rem + 1vw, 2.1rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.1;
  color: var(--glow);
}
.section-aside { margin: 0; font-size: 0.9rem; color: var(--ash); white-space: nowrap; }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 0.3em;
  transition: color var(--duration-fast), text-decoration-color var(--duration-fast);
}
.text-link svg { width: 0.85em; height: 0.85em; transition: transform 240ms var(--ease-out-expo); }
.text-link:hover, .text-link:focus-visible { color: var(--glow); text-decoration-color: currentColor; }
.text-link:hover svg, .text-link:focus-visible svg { transform: translate(2px, -2px); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 1.35rem;
  border-radius: 999px;
  background: var(--glow);
  color: var(--ink);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 240ms var(--ease-out-expo), background-color var(--duration-fast), box-shadow 240ms var(--ease-out-expo);
}
.btn svg { width: 1em; height: 1em; transition: transform 240ms var(--ease-out-expo); }
.btn:hover, .btn:focus-visible { background: #fff; box-shadow: 0 10px 30px -12px rgba(255, 247, 234, 0.45); transform: translateY(-1px); }
.btn:hover svg, .btn:focus-visible svg { transform: translateX(3px); }
.btn:active { transform: translateY(0) scale(0.98); }
.btn:focus-visible { outline-offset: 3px; border-radius: 999px; }

/* ---------- grainy gradient surfaces (js/grain-field.js) ---------- */
/* --g0 shadow, --g1 and --g2 two mid hues that drift into each other, --g3 light haze, --gs speckles */
[data-grain="dusk"]  { --g0: #141a20; --g1: #2c3c48; --g2: #5d5672; --g3: #a19490; --gs: #dccaa9; }
[data-grain="ember"] { --g0: #1a1b19; --g1: #3d4232; --g2: #7a4f3b; --g3: #b0906e; --gs: #e4c9a0; }
[data-grain="moss"]  { --g0: #111b1c; --g1: #234440; --g2: #707a4e; --g3: #a9a578; --gs: #dcd6a6; }
[data-grain="bloom"] { --g0: #1a1622; --g1: #3a2f48; --g2: #6e5263; --g3: #a8968f; --gs: #e0d2ba; }
[data-grain="glow"]  { --g0: #1f2e3a; --g1: #4a6075; --g2: #9b8fb3; --g3: #d8c6b6; --gs: #f5e8cf; }
/* Static stand-in, replaced by the shader once WebGL is up. */
[data-grain] {
  background:
    radial-gradient(70% 55% at 75% 20%, var(--g3) 0%, transparent 70%),
    radial-gradient(80% 60% at 20% 75%, var(--g2) 0%, transparent 75%),
    linear-gradient(160deg, var(--g1), var(--g0));
}
.grain-live [data-grain] { background: none; }
.grain-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; pointer-events: none; }

/* ---------- scroll reveal (js/reveal.js) ---------- */
.reveal-ready [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 900ms var(--ease-out-expo), transform 900ms var(--ease-out-expo);
  transition-delay: var(--reveal-delay, 0ms);
}
.reveal-ready [data-reveal].is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal-ready [data-reveal] { opacity: 1; transform: none; }
}