/* =============================================================================
 * Raskin — design tokens & primitives for the home page
 *
 * Pair with: raskin-plate-01-thinker.png
 *            raskin-plate-02-stilllife.png
 *            raskin-plate-03-nightwork.png
 *
 * Native plate aspect ratio is 1240 × 840 (≈ 1.476:1). The exported PNGs are
 * 923 × 540 (aspect-preserving fit). Display them with `object-fit: cover` if
 * you crop, or `contain` if you letterbox.
 * ===========================================================================*/

/* -- Fonts ------------------------------------------------------------------ */
/* Match the look of the illustrations. */
@import url("https://fonts.googleapis.com/css2?family=Source+Serif+Pro:ital,wght@0,400;0,600;0,700;1,400;1,600&family=JetBrains+Mono:wght@400;500&family=Caveat:wght@400;600&display=swap");

/* -- Tokens ----------------------------------------------------------------- */
:root {
  /* Ink & paper */
  --raskin-ink:        #1a1714;
  --raskin-ink-soft:   rgba(26, 23, 20, 0.60);
  --raskin-ink-faint:  rgba(26, 23, 20, 0.18);
  --raskin-paper:      #f1e9d8;  /* warm paper — plate I bg */
  --raskin-paper-deep: #e8dfc9;  /* deeper paper — plate II bg */
  --raskin-night:      #16110c;  /* night ink — plate III bg */

  /* Accents */
  --raskin-rust:       #c44a26;
  --raskin-rust-soft:  #e09275;
  --raskin-phosphor:   #9ed87a;  /* CRT green from the terminal */

  /* Shadows */
  --raskin-shadow-soft: 0 2px 0 rgba(26, 23, 20, 0.10);
  --raskin-shadow-card: 0 24px 60px -20px rgba(26, 23, 20, 0.35),
                        0 4px 12px -4px rgba(26, 23, 20, 0.20);

  /* Type */
  --raskin-font-display: "Source Serif Pro", Georgia, "Times New Roman", serif;
  --raskin-font-mono:    "JetBrains Mono", ui-monospace, Menlo, monospace;
  --raskin-font-hand:    "Caveat", "Bradley Hand", cursive;

  /* Spacing scale (8pt baseline) */
  --raskin-s-1: 8px;
  --raskin-s-2: 16px;
  --raskin-s-3: 24px;
  --raskin-s-4: 32px;
  --raskin-s-5: 48px;
  --raskin-s-6: 64px;
  --raskin-s-7: 96px;
  --raskin-s-8: 128px;

  /* Page width */
  --raskin-max: 1180px;
}

/* -- Base ------------------------------------------------------------------- */
.raskin {
  font-family: var(--raskin-font-display);
  color: var(--raskin-ink);
  background: var(--raskin-paper);
  font-size: 18px;
  line-height: 1.55;
  text-wrap: pretty;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* -- Typography ------------------------------------------------------------- */
.raskin-display {
  font-family: var(--raskin-font-display);
  font-weight: 400;
  font-size: clamp(48px, 6vw, 96px);
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin: 0;
}
.raskin-display em {
  font-style: italic;
  color: var(--raskin-rust);
}

.raskin-h2 {
  font-family: var(--raskin-font-display);
  font-weight: 400;
  font-size: clamp(32px, 3.4vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0;
}
.raskin-h2 em { font-style: italic; }

.raskin-lede {
  font-size: 22px;
  line-height: 1.55;
  color: var(--raskin-ink);
  max-width: 60ch;
}

.raskin-eyebrow {
  font-family: var(--raskin-font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--raskin-ink-soft);
}

.raskin-mono {
  font-family: var(--raskin-font-mono);
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: 0.02em;
}

.raskin-hand {
  font-family: var(--raskin-font-hand);
  font-weight: 400;
}

/* Inline rust highlight ("a good tool is like a [musical instrument]") */
.raskin-mark {
  background: var(--raskin-rust);
  color: var(--raskin-paper);
  padding: 0 0.3em;
  border-radius: 1px;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

/* -- Buttons & keycaps ------------------------------------------------------ */
/* The LEAP-style keycap from the plates, as a primary CTA. */
.raskin-key {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--raskin-font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--raskin-paper);
  background: var(--raskin-rust);
  border: none;
  padding: 14px 22px;
  border-radius: 6px;
  cursor: pointer;
  box-shadow: inset 0 -4px 0 rgba(0, 0, 0, 0.20),
              3px 4px 0 rgba(26, 23, 20, 0.15);
  text-decoration: none;
  transition: transform 0.08s ease, box-shadow 0.08s ease, background 0.15s ease;
}
.raskin-key::before { content: "◂"; }
.raskin-key.is-right::before { content: ""; }
.raskin-key.is-right::after { content: "▸"; }
.raskin-key:hover { background: #d35a36; }
.raskin-key:active {
  transform: translate(2px, 3px);
  box-shadow: inset 0 -2px 0 rgba(0, 0, 0, 0.20),
              1px 1px 0 rgba(26, 23, 20, 0.15);
}

.raskin-key-ghost {
  composes: raskin-key;
  background: transparent;
  color: var(--raskin-ink);
  border: 1px solid var(--raskin-ink-faint);
  box-shadow: none;
}
.raskin-key-ghost:hover {
  background: rgba(26, 23, 20, 0.04);
}

/* -- Hero plates (use the exported PNGs) ----------------------------------- */
.raskin-plate {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1240 / 840;
  object-fit: cover;
  background: var(--raskin-paper);
}
.raskin-plate.is-still-life { background: var(--raskin-paper-deep); }
.raskin-plate.is-night      { background: var(--raskin-night); }

/* If you want a tighter crop with no letterbox bands, use this wrapper: */
.raskin-plate-frame {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  box-shadow: var(--raskin-shadow-card);
}
.raskin-plate-frame .raskin-plate { object-fit: cover; height: 100%; }

/* -- Decorative bits from the plates -------------------------------------- */
/* Corner registration marks — drop into any container as ::before/::after */
.raskin-regmarks {
  position: relative;
}
.raskin-regmarks::before,
.raskin-regmarks::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 1px solid var(--raskin-ink);
  pointer-events: none;
}
.raskin-regmarks::before {
  top: 20px; left: 20px;
  border-right: none; border-bottom: none;
}
.raskin-regmarks::after {
  bottom: 20px; right: 20px;
  border-left: none; border-top: none;
}

/* Faint engineering-paper grid (4 0px squares) */
.raskin-grid-bg {
  background-image:
    linear-gradient(rgba(26, 23, 20, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 23, 20, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* Tick callout — small fig-num + rule + label */
.raskin-tick {
  font-family: var(--raskin-font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--raskin-ink-soft);
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.raskin-tick::before {
  content: "";
  display: inline-block;
  width: 32px;
  height: 1px;
  background: currentColor;
  position: relative;
  top: -1px;
}

/* -- Layout helpers -------------------------------------------------------- */
.raskin-container {
  max-width: var(--raskin-max);
  margin: 0 auto;
  padding: 0 var(--raskin-s-4);
}

.raskin-hero {
  padding: var(--raskin-s-7) 0 var(--raskin-s-6);
  position: relative;
}
.raskin-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: var(--raskin-s-6);
  align-items: center;
}
@media (max-width: 880px) {
  .raskin-hero-grid { grid-template-columns: 1fr; gap: var(--raskin-s-4); }
}

/* Section starter on the deep paper tone */
.raskin-section-warm   { background: var(--raskin-paper); }
.raskin-section-warmer { background: var(--raskin-paper-deep); }
.raskin-section-night  {
  background: var(--raskin-night);
  color: var(--raskin-paper);
}
.raskin-section-night .raskin-eyebrow,
.raskin-section-night .raskin-mono {
  color: rgba(241, 233, 216, 0.55);
}

/* -- Footer plate index --------------------------------------------------- */
.raskin-plate-index {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--raskin-s-3);
}
@media (max-width: 720px) {
  .raskin-plate-index { grid-template-columns: 1fr; }
}
.raskin-plate-index figure { margin: 0; }
.raskin-plate-index figcaption {
  font-family: var(--raskin-font-display);
  font-style: italic;
  font-size: 18px;
  margin-top: var(--raskin-s-1);
}
.raskin-plate-index figcaption small {
  display: block;
  font-family: var(--raskin-font-mono);
  font-style: normal;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--raskin-ink-soft);
  margin-top: 4px;
}