/* ============================================================
   base.css — Remidiy
   Dark monochrome with one fern-green accent.
   ============================================================ */

:root {
  /* Surface ladder — deepest to highest */
  --bg-0:        #1a1a1a;
  --bg-1:        #1f1f1f;
  --bg-2:        #262626;
  --bg-3:        #303030;
  --bg-4:        #404040;

  /* Borders */
  --border:      #2e2e2e;
  --border-2:    #3d3d3d;
  --border-3:    #4d4d4d;

  /* Text */
  --text-0:      #f5f5f5;
  --text-1:      #d4d4d4;
  --text-2:      #a3a3a3;
  --text-3:      #6b6b6b;
  --text-4:      #4a4a4a;

  /* Accent — leaf / fern */
  --accent:      #8db580;
  --accent-2:    #a8c99a;
  --accent-deep: #4F7942;
  --accent-mute: rgba(141, 181, 128, 0.10);
  --accent-line: rgba(141, 181, 128, 0.35);

  /* Status */
  --good:        #8db580;
  --warn:        #d6b375;
  --err:         #d97b6b;

  /* Type */
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Layout */
  --maxw:   1200px;
  --gutter: clamp(20px, 4vw, 40px);

  /* Radii */
  --r-xs: 4px;
  --r-s:  6px;
  --r-m:  10px;
  --r-l:  16px;
  --r-pill: 100px;

  /* Motion */
  --ease:   cubic-bezier(.2, .7, .2, 1);
  --ease-2: cubic-bezier(.65, 0, .35, 1);

  color-scheme: dark;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 17.5px;   /* root scale — all rem-based type (headings, ledes) grows from here */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  background: var(--bg-0);
}

body {
  background: transparent;
  color: var(--text-1);
  font-family: var(--sans);
  font-size: 17.5px;
  line-height: 1.6;
  font-weight: 400;
  font-feature-settings: 'ss01', 'cv02', 'cv11';
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

::selection { background: rgba(141, 181, 128, 0.30); color: var(--text-0); }

a       { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button  { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }

/* ----- Layout ----- */
.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
  position: relative;
}

section { padding: 120px 0; position: relative; }

/* ----- Subtle ambient noise on bg, almost imperceptible ----- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 1100px 600px at 80% -10%, rgba(141, 181, 128, 0.05), transparent 60%),
    radial-gradient(ellipse 800px 500px at 0% 100%, rgba(141, 181, 128, 0.03), transparent 65%),
    var(--bg-0);
  pointer-events: none;
}

/* ----- Film grain — subtle tactile texture over the dark canvas ----- */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.06;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ----- Typography ----- */
h1, h2, h3, h4 {
  font-family: var(--sans);
  color: var(--text-0);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

h1 {
  font-size: clamp(2.5rem, 6.5vw, 4.75rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1.0;
}
h2 {
  font-size: clamp(1.85rem, 3.8vw, 2.8rem);
  letter-spacing: -0.035em;
  line-height: 1.05;
  margin-bottom: 18px;
}
h3 {
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.3;
  margin-bottom: 8px;
  color: var(--text-0);
}
h4 {
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-3);
}

p { color: var(--text-1); }

em.accent {
  font-style: normal;
  color: var(--accent);
  text-shadow: 0 0 32px rgba(141, 181, 128, 0.22);
}

.lede {
  font-size: clamp(1rem, 1.2vw, 1.15rem);
  color: var(--text-2);
  max-width: 58ch;
  line-height: 1.6;
  font-weight: 400;
}

/* ----- Eyebrow tag ----- */
.eyebrow {
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
}
.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent);
}

/* ----- Section number label ----- */
.section-num {
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--text-3);
}

/* ----- Reveal-on-scroll ----- */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.in { opacity: 1; transform: translateY(0); }

/* ----- Staggered group reveal: children cascade in one after another ----- */
/* Containers tagged [data-stagger]; js/ui.js sets --i (index) on each child
   and adds .in to the container when it scrolls into view. */
[data-stagger] > * {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
[data-stagger].in > * {
  opacity: 1;
  transform: none;
  transition-delay: calc(var(--i, 0) * 70ms);
}
@media (prefers-reduced-motion: reduce) {
  [data-stagger] > * { transition: none; opacity: 1; transform: none; }
}

/* ----- Horizontal rule, hairline ----- */
.hr {
  border: 0;
  height: 1px;
  background: var(--border);
  margin: 0;
}

/* ----- Utility ----- */
.mute { color: var(--text-2); }
.tabnum { font-feature-settings: 'tnum' 1; }