/* ============================================================
   SynPETic — Base / Reset / Typography
   ============================================================ */

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

html {
  background: var(--ink-000);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "ss02", "cv11";
  scrollbar-width: thin;
  scrollbar-color: var(--ink-400) var(--ink-000);
}

body {
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

::selection { background: var(--purple-500); color: var(--ink-000); }

img, svg, video, canvas { max-width: 100%; display: block; }

a {
  color: inherit;
  text-decoration: none;
  transition: color 200ms var(--ease-out-quart);
}

button, input, textarea, select { font: inherit; color: inherit; }

button { background: none; border: 0; cursor: pointer; }

/* ---------- Typography scale ---------- */

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.eyebrow::before {
  content: "";
  width: 1.5rem;
  height: 1px;
  background: currentColor;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.05;
  font-variation-settings: "SOFT" 50, "WONK" 1, "opsz" 144;
}

h1 { font-size: clamp(2.75rem, 7vw, 6rem); }
h2 { font-size: clamp(2rem, 4.5vw, 3.75rem); }
h3 { font-size: clamp(1.4rem, 2.4vw, 2rem); letter-spacing: -0.01em; }
h4 { font-size: 1.15rem; font-family: var(--font-sans); font-weight: 600; letter-spacing: 0.01em; }

p { max-width: var(--col-text); }

.lede {
  font-family: var(--font-read);
  font-size: clamp(1.15rem, 1.6vw, 1.5rem);
  line-height: 1.55;
  color: var(--ink-800);
  font-weight: 400;
  max-width: var(--col-text);
}

.lede em { font-style: italic; color: var(--cyan-400); }

/* Reading body (used in editorial / long-form sections) */
.prose {
  font-family: var(--font-read);
  font-size: 1.18rem;
  line-height: 1.72;
  color: var(--ink-800);
  max-width: var(--col-text);
}
.prose p + p { margin-top: 1.25em; }
.prose p { text-indent: 1.5em; }
.prose p:first-of-type { text-indent: 0; }
.prose em { color: var(--cyan-400); font-style: italic; }
.prose strong { color: var(--ink-900); font-weight: 600; }

/* Drop cap — editorial signature */
.dropcap::first-letter {
  font-family: var(--font-display);
  font-size: 5.5em;
  float: left;
  line-height: 0.85;
  padding: 0.05em 0.12em 0 0;
  margin: 0.05em 0 0;
  font-weight: 400;
  color: var(--cyan-400);
  font-variation-settings: "SOFT" 100, "WONK" 1, "opsz" 144;
}

.mono { font-family: var(--font-mono); }
.serif { font-family: var(--font-display); }
.hand { font-family: var(--font-hand); }

/* Helpers */
.text-muted { color: var(--fg-muted); }
.text-dim { color: var(--fg-dim); }
.text-cyan { color: var(--cyan-400); }
.text-purple { color: var(--purple-400); }
.text-amber { color: var(--hazard-amber); }
.text-green { color: var(--cellular-green); }
.text-stamp { color: var(--stamp-red); }

.uppercase { text-transform: uppercase; letter-spacing: 0.18em; }

/* ---------- Layout primitives ---------- */

.wrap { width: 100%; max-width: var(--col-wide); margin: 0 auto; padding: 0 var(--gutter); }
.wrap-edge { width: 100%; max-width: var(--col-edge); margin: 0 auto; padding: 0 var(--gutter); }
.wrap-narrow { width: 100%; max-width: var(--col-narrow); margin: 0 auto; padding: 0 var(--gutter); }

.section { padding: var(--space-10) 0; position: relative; }
.section-sm { padding: var(--space-8) 0; }
.section-lg { padding: var(--space-11) 0; }

/* Editorial rule (replaces card borders in many places) */
.rule { display: block; height: 1px; background: var(--rule); border: 0; }
.rule-strong { background: var(--rule-strong); }

/* Inline rules above headings — editorial signature */
.hed-rule {
  display: flex; align-items: baseline; gap: 1rem;
  margin-bottom: var(--space-5);
}
.hed-rule::after {
  content: ""; flex: 1; height: 1px; background: var(--rule); align-self: center;
}

/* ---------- Footnote / Marginalia system ---------- */

sup.fn {
  font-family: var(--font-mono);
  font-size: 0.62em;
  color: var(--cyan-400);
  margin-left: 0.1em;
  padding: 0 0.3em;
  background: rgba(0, 245, 255, 0.08);
  border: 1px solid rgba(0, 245, 255, 0.25);
  border-radius: 999px;
  cursor: help;
  vertical-align: super;
  line-height: 1;
  position: relative;
  transition: all 180ms var(--ease-out-quart);
}
sup.fn:hover { background: var(--cyan-500); color: var(--ink-000); border-color: var(--cyan-500); }

.fn-tooltip {
  position: absolute;
  bottom: calc(100% + 0.5rem);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  min-width: 18rem;
  max-width: 24rem;
  background: var(--ink-100);
  border: 1px solid var(--rule-strong);
  padding: 0.85rem 1rem;
  font-family: var(--font-read);
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--ink-800);
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms var(--ease-out-quart), transform 180ms var(--ease-out-quart);
  z-index: var(--z-modal);
  box-shadow: 0 10px 40px rgba(0,0,0,0.55), 0 0 0 1px rgba(0,245,255,0.12);
}
.fn-tooltip::before {
  content: "";
  position: absolute;
  top: 100%; left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--ink-100);
}
sup.fn:hover .fn-tooltip,
sup.fn:focus .fn-tooltip { opacity: 1; transform: translateX(-50%) translateY(0); }

/* Marginalia — small aside in gutter */
.marginalia {
  font-family: var(--font-hand);
  font-size: 1.25rem;
  line-height: 1.35;
  color: var(--stamp-red);
  transform: rotate(-1.2deg);
  max-width: 14rem;
}
.marginalia::before {
  content: "↳ ";
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--stamp-red);
  margin-right: 0.2em;
}

/* ---------- Buttons (avoiding generic rounded rectangles) ---------- */

.btn {
  display: inline-flex; align-items: center; gap: 0.65rem;
  padding: 0.85rem 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-900);
  background: transparent;
  border: 1px solid var(--rule-strong);
  border-radius: var(--r-sharp);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: color 220ms var(--ease-out-quart), border-color 220ms var(--ease-out-quart),
              transform 320ms var(--ease-out-expo);
}
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, var(--purple-500), var(--cyan-500));
  transform: translateY(101%);
  transition: transform 380ms var(--ease-out-expo);
  z-index: -1;
}
.btn:hover { color: var(--ink-000); border-color: var(--cyan-500); }
.btn:hover::before { transform: translateY(0); }
.btn svg { width: 14px; height: 14px; }

.btn-pill {
  border-radius: var(--r-pill);
  padding: 0.7rem 1.4rem;
}

.btn-primary {
  background: var(--cyan-500);
  color: var(--ink-000);
  border-color: var(--cyan-500);
}
.btn-primary::before {
  background: linear-gradient(120deg, var(--cyan-500), var(--purple-500));
  transform: translateY(0);
}
.btn-primary:hover { color: var(--ink-000); }

/* Ghost link arrow */
.link-arrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan-400);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: gap 220ms var(--ease-out-quart), border-color 220ms var(--ease-out-quart);
}
.link-arrow::after { content: "→"; transition: transform 220ms var(--ease-out-quart); }
.link-arrow:hover { gap: 0.85rem; border-bottom-color: var(--cyan-500); }

/* ---------- Pills / chips ---------- */

.pill {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.32rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border-radius: var(--r-pill);
  border: 1px solid var(--rule-strong);
  background: rgba(255,255,255,0.02);
  color: var(--ink-800);
}
.pill .dot {
  width: 7px; height: 7px; border-radius: 99px;
  background: var(--cyan-500);
  box-shadow: 0 0 8px var(--cyan-500);
  animation: blink 1.8s ease-in-out infinite;
}
.pill.pill-amber .dot { background: var(--hazard-amber); box-shadow: 0 0 8px var(--hazard-amber); }
.pill.pill-green .dot { background: var(--cellular-green); box-shadow: 0 0 8px var(--cellular-green); }
.pill.pill-stamp { border-color: var(--stamp-red); color: var(--stamp-red); }

@keyframes blink { 50% { opacity: 0.35; } }

/* ---------- Accessibility / motion ---------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .pill .dot { animation: none; }
}

:focus-visible {
  outline: 2px solid var(--cyan-500);
  outline-offset: 3px;
  border-radius: 2px;
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0;
  margin: -1px; overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* Smooth-ish scroll fallback (only if Lenis not loaded) */
html.no-lenis { scroll-behavior: smooth; }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--ink-000); }
::-webkit-scrollbar-thumb { background: var(--ink-400); border-radius: 0; }
::-webkit-scrollbar-thumb:hover { background: var(--purple-500); }