/* ============================================================
   ReproX — shared styles · v2.1 (May 2026)
   Aesop meets deep tech. Paper canvas + Ember accent. Sans only.
   ============================================================ */

:root {
  /* Surface — light */
  --canvas:  #FAFAF8;   /* near-white page field (was --paper) */
  --paper:   #FAFAF8;   /* alias for legacy templates */
  --elev:    #F2F0EA;   /* elevated surface (was --bone in v1) */
  --bone:    #F2F0EA;   /* alias for legacy templates */
  --card:    #EBE9E3;   /* card surface */

  /* Type */
  --ink:     #0A0E18;   /* near-black type */
  --type:    #0A0E18;
  --pencil:  #5A6376;   /* secondary type */
  --type-mute: #5A6376;
  --graphite: #6C7488;  /* mono / meta */
  --type-mono: #6C7488;

  /* Lines */
  --rule:        rgba(10, 14, 24, 0.09);
  --rule-strong: rgba(10, 14, 24, 0.18);

  /* Accents */
  --ember:      #C75D2C;  /* Reproductive Rebellion through-line */
  --ember-glow: #E47C49;
  --blue:       #3E5A95;
  --blue-soft:  #5C77AE;
  --ink-deep:   #0A0E18;

  /* Type stacks — SANS ONLY in v2.1 */
  --sans:    'Geist', system-ui, sans-serif;
  --display: 'Geist', system-ui, sans-serif;  /* legacy alias → sans */
  --mono:    'Geist Mono', ui-monospace, monospace;

  /* Scale */
  --fs-xs: 11px;
  --fs-sm: 13px;
  --fs-base: 17px;
  --fs-md: 19px;
  --fs-lg: 22px;
  --fs-xl: 32px;
  --fs-2xl: 52px;
  --fs-3xl: 72px;
  --fs-4xl: 96px;

  --container: 1200px;
  --gutter: 40px;
}

/* Palette tweak: Inkwell — inverted (dark) */
[data-palette="inkwell"] {
  --canvas: #0A0E18;
  --paper: #0A0E18;
  --elev:   #14182A;
  --bone:   #14182A;
  --card:   #1B2034;
  --ink:    #FAFAF8;
  --type:   #FAFAF8;
  --pencil: #A6ADBC;
  --type-mute: #A6ADBC;
  --graphite: #8089A0;
  --type-mono: #8089A0;
  --rule:        rgba(250, 250, 248, 0.10);
  --rule-strong: rgba(250, 250, 248, 0.20);
}

/* Palette tweak: Sunrise — gradient-forward */
[data-palette="daybreak"] {
  --canvas: #FAFAF8;
  --paper:  #FAFAF8;
  --elev:   #F4ECE3;
  --bone:   #F4ECE3;
  --card:   #ECE2D2;
  --ember:  #C75D2C;
  --ink:    #0A0E18;
}

/* Type tweak (legacy hook from v1) — both options sans now */
[data-type="sans"] { --display: var(--sans); }
[data-type="serif"] { --display: var(--sans); }

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--fs-base);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--ember); }

/* Typography */
.display, h1, h2, h3, h4 {
  font-family: var(--sans);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--ink);
  text-wrap: balance;
  margin: 0;
}
h1 { font-size: clamp(48px, 7.5vw, 96px); font-weight: 500; letter-spacing: -0.04em; }
h2 { font-size: clamp(32px, 4.6vw, 52px); letter-spacing: -0.035em; }
h3 { font-size: 28px; letter-spacing: -0.02em; line-height: 1.2; }
h4 {
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--type-mute);
  font-weight: 500; margin-bottom: 16px;
}

p { margin: 0 0 16px; color: var(--type-mute); text-wrap: pretty; }
p.bright { color: var(--ink); }
p.lead {
  font-size: 22px;
  line-height: 1.5;
  color: var(--type-mute);
  font-weight: 400;
}

em { font-style: italic; }

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ember);
}

.meta {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--type-mono);
}

code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: var(--elev);
  padding: 2px 6px;
  border-radius: 2px;
  color: var(--ember);
}

/* Layout */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
section { padding: 120px 0; border-top: 1px solid var(--rule); }
section:first-of-type { border-top: none; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(250, 250, 248, 0.78);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--rule);
}
[data-palette="inkwell"] .nav { background: rgba(10, 14, 24, 0.78); }

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: 32px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
}
.brand-mark { display: none; }  /* v2.1: wordmark only — no SVG mark */
.nav-links {
  display: flex; gap: 28px;
  font-family: var(--sans);
  font-size: 14px;
}
.nav-links a { color: var(--type-mute); }
.nav-links a:hover { color: var(--ink); }
.nav-links a.active {
  color: var(--ink);
  border-bottom: 1px solid var(--ember);
  padding-bottom: 2px;
}
.nav-right { display: flex; align-items: center; gap: 16px; }

.time-pill {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--type-mono);
  border: 1px solid var(--rule);
  padding: 5px 10px;
  border-radius: 2px;
  white-space: nowrap;
}
.time-pill .dot {
  display: inline-block;
  width: 5px; height: 5px;
  background: var(--ember);
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.lang-toggle {
  background: transparent;
  border: 1px solid var(--rule);
  padding: 6px 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--type-mute);
  cursor: pointer;
  border-radius: 2px;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.lang-toggle:hover { border-color: var(--rule-strong); color: var(--ink); }
.lang-toggle b { color: var(--ink); font-weight: 500; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 500;
  padding: 14px 22px;
  border-radius: 2px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--canvas);
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease;
}
.btn:hover { background: var(--ember); border-color: var(--ember); color: var(--canvas); transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--rule-strong);
}
.btn-ghost:hover { border-color: var(--ember); color: var(--ember); background: transparent; }
.btn .arrow { transition: transform 0.2s ease; }
.btn:hover .arrow { transform: translateX(3px); }

/* Footer */
footer {
  background: var(--elev);
  padding: 100px 0 40px;
  border-top: 1px solid var(--rule);
}
footer .container { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; }
footer h4 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--type-mono);
  margin: 0 0 16px;
  font-weight: 500;
}
footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
footer ul li { margin: 0; color: var(--type-mute); }
footer a { color: var(--type-mute); font-size: 14px; }
footer a:hover { color: var(--ember); }
footer .colophon {
  grid-column: 1 / -1;
  display: flex; justify-content: space-between; align-items: end;
  padding-top: 24px;
  margin-top: 40px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--type-mono);
}
footer .wordmark {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 36px;
  letter-spacing: -0.035em;
  color: var(--ink);
  line-height: 1;
}

/* Hero shared */
.hero-eyebrow {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 36px;
}
.hero-eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--ember);
}

/* Hero gradient mesh — the one chromatic gesture */
.hero-mesh {
  position: absolute;
  inset: -15%;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 55% 45% at 82% 20%, rgba(199, 93, 44, 0.55) 0%, transparent 60%),
    radial-gradient(ellipse 50% 55% at 15% 80%, rgba(62, 90, 149, 0.38) 0%, transparent 65%),
    radial-gradient(ellipse 40% 50% at 70% 90%, rgba(228, 124, 73, 0.32) 0%, transparent 65%),
    radial-gradient(ellipse 45% 40% at 35% 25%, rgba(62, 90, 149, 0.14) 0%, transparent 70%);
  filter: blur(50px);
  animation: drift 40s ease-in-out infinite alternate;
}
@keyframes drift {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(-3%, 2%) scale(1.05); }
  100% { transform: translate(2%, -2%) scale(1); }
}

/* Cards */
.card {
  background: var(--elev);
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 32px;
}
.card-hover { transition: border-color 0.2s ease, transform 0.2s ease; }
.card-hover:hover { border-color: var(--rule-strong); transform: translateY(-2px); }

/* Pull quote */
.pullquote {
  font-family: var(--sans);
  font-weight: 500;
  font-size: clamp(28px, 3.6vw, 44px);
  line-height: 1.15;
  letter-spacing: -0.035em;
  color: var(--ink);
  max-width: 26ch;
}

/* Diagram placeholder */
.diagram {
  background: var(--elev);
  border: 1px solid var(--rule);
  position: relative;
  overflow: hidden;
}
.diagram::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(45deg,
      transparent 0, transparent 14px,
      rgba(10, 14, 24, 0.04) 14px,
      rgba(10, 14, 24, 0.04) 15px);
  pointer-events: none;
}

/* Image placeholder */
.img-slot {
  background: var(--elev);
  border: 1px solid var(--rule);
  display: grid; place-items: center;
  color: var(--type-mono);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  position: relative;
}
.img-slot::before {
  content: "";
  position: absolute; inset: 16px;
  border: 1px dashed var(--rule-strong);
}

/* Bottleneck shared */
.bottleneck-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--type-mono);
  text-transform: uppercase;
}

/* Forms */
.field { display: grid; gap: 6px; margin-bottom: 18px; }
.field label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--type-mono);
}
.field input,
.field textarea,
.field select {
  font-family: var(--sans);
  font-size: 15px;
  padding: 12px 14px;
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  background: var(--canvas);
  color: var(--ink);
}
.field input:focus,
.field textarea:focus,
.field select:focus { outline: none; border-color: var(--ember); }

/* Responsive */
@media (max-width: 900px) {
  section { padding: 80px 0; }
  footer .container { grid-template-columns: 1fr 1fr; }
}

/* Tweaks panel */
.tweaks {
  position: fixed; bottom: 20px; right: 20px;
  z-index: 100;
  background: var(--canvas);
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  padding: 18px;
  width: 280px;
  box-shadow: 0 10px 40px rgba(10, 14, 24, 0.10);
  font-family: var(--sans);
  font-size: 13px;
  display: none;
}
.tweaks[data-open="true"] { display: block; }
.tweaks h5 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--type-mono);
  margin: 0 0 8px;
  font-weight: 500;
}
.tweaks-row { display: flex; gap: 6px; margin-bottom: 16px; flex-wrap: wrap; }
.tweaks-row button {
  flex: 1;
  font-family: var(--sans);
  font-size: 12px;
  padding: 8px 10px;
  border: 1px solid var(--rule-strong);
  background: transparent;
  color: var(--type-mute);
  border-radius: 2px;
  cursor: pointer;
  min-width: 60px;
}
.tweaks-row button.on {
  border-color: var(--ember);
  background: var(--ember);
  color: var(--canvas);
}
.tweaks-close {
  position: absolute; top: 10px; right: 10px;
  width: 22px; height: 22px;
  border: none; background: transparent; cursor: pointer;
  color: var(--type-mono);
  font-size: 16px;
  line-height: 1;
}
.tweaks-swatches { display: flex; gap: 8px; margin-bottom: 16px; }
.tweaks-swatches button {
  width: 36px; height: 36px;
  border: 1px solid var(--rule-strong);
  border-radius: 50%;
  cursor: pointer;
  padding: 0;
  display: grid; place-items: center;
  background: transparent;
}
.tweaks-swatches button.on { outline: 2px solid var(--ember); outline-offset: 2px; }
.tweaks-swatches span { width: 22px; height: 22px; border-radius: 50%; display: block; }