/* Rework — Anthropic-warm palette over GenoSight bones */
:root {
  /* Canvas & surfaces */
  --canvas: #F5F1EB;        /* warm cream */
  --canvas-deep: #EFE9DF;   /* deeper cream band */
  --surface: #FAFAF7;       /* card */
  --surface-elev: #FFFFFF;

  /* Ink */
  --ink: #1A1714;
  --ink-soft: #2D2823;
  --muted: #6B645C;
  --subtle: #A39A8E;
  --border: #E2D9C8;
  --border-strong: #CFC3AD;

  /* Brand accents */
  --orange: #D97757;        /* Claude orange */
  --orange-deep: #B85B3D;
  --orange-soft: #E8A285;
  --orange-tint: rgba(217,119,87,0.10);
  --clay: #C8845E;
  --sage: #8A9A7B;
  --rust: #A04D2C;

  /* Type */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Geist", "Inter", -apple-system, sans-serif;
  --font-serif: "Instrument Serif", "Source Serif 4", Georgia, serif;

  /* Motion */
  --ease: cubic-bezier(0.2, 0.6, 0.2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "cv11";
}

/* Selection */
::selection { background: var(--orange); color: #fff; }

/* Reset */
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea { font-family: inherit; font-size: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ------- Reveal animation ------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* ------- Type utilities ------- */
.eyebrow {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}


/* ------- Layout primitives ------- */
.shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}
@media (max-width: 720px) {
  .shell { padding: 0 20px; }
}

.section {
  padding: 120px 0;
  position: relative;
}
@media (max-width: 720px) {
  .section { padding: 80px 0; }
}

/* ------- Buttons ------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 44px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.005em;
  transition: background 180ms var(--ease), color 180ms var(--ease), border-color 180ms var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: var(--ink);
  color: var(--canvas);
}
.btn-primary:hover { background: var(--orange-deep); }
.btn-ghost {
  border: 1px solid var(--border-strong);
  color: var(--ink);
}
.btn-ghost:hover { background: var(--surface); border-color: var(--ink); }
.btn-orange {
  background: var(--orange);
  color: #fff;
}
.btn-orange:hover { background: var(--orange-deep); }

.btn .arrow {
  display: inline-block;
  transition: transform 200ms var(--ease);
}
.btn:hover .arrow { transform: translateX(3px); }

/* ------- Inputs ------- */
.input, .textarea {
  width: 100%;
  border: none;
  background: transparent;
  border-bottom: 1px solid var(--border-strong);
  padding: 14px 0;
  font-size: 16px;
  color: var(--ink);
  transition: border-color 180ms var(--ease);
  outline: none;
}
.input::placeholder, .textarea::placeholder { color: var(--subtle); }
.input:focus, .textarea:focus { border-bottom-color: var(--ink); }
.textarea {
  resize: vertical;
  min-height: 80px;
  line-height: 1.55;
}

/* ------- Subtle grid bg for hero ------- */
.grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(26,23,20,0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(26,23,20,0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 30%, transparent 80%);
  pointer-events: none;
}

/* Headings */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.serif-italic {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.005em;
}

/* Divider */
.hr {
  height: 1px;
  background: var(--border);
  border: none;
  margin: 0;
}

/* ------- Service row hover (also fires on :active for touch devices) ------- */
.service-row { padding-left: 0; }
.service-row__tag { color: var(--subtle); }
.service-row__arrow { color: var(--subtle); transform: translateX(0); }
.service-row:hover,
.service-row:active { padding-left: 12px; }
.service-row:hover .service-row__tag,
.service-row:active .service-row__tag { color: var(--orange-deep); }
.service-row:hover .service-row__arrow,
.service-row:active .service-row__arrow { color: var(--orange-deep); transform: translateX(4px); }

/* ------- Project card hover (also fires on :active for touch devices) ------- */
.project-card {
  background: rgba(255,255,255,0.02);
  border-color: rgba(255,255,255,0.10);
  transform: translateY(0);
}
.project-card:hover,
.project-card:active {
  background: rgba(255,255,255,0.05);
  border-color: rgba(217,119,87,0.4);
  transform: translateY(-3px);
}

/* ------- Reduced motion ------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}