/* Odontina — Creating a Monster
 * v2 · Brutalist-editorial: pure B/W + study-marker highlight
 */

:root {
  /* Palette */
  --bg: #ffffff;
  --bg-elev: #f6f6f4;
  --bg-card: #ffffff;
  --ink: #0a0a0a;
  --ink-2: #2a2a2a;
  --muted: #707070;
  --muted-2: #9a9a9a;
  --line: #e6e6e2;
  --line-2: #f0f0ec;
  --accent: #0a0a0a;
  --accent-ink: #0a0a0a;
  --accent-soft: #f3f3ef;
  --tag: #efefe9;

  /* Signature marker highlight */
  --hl: #ecff3a;
  --hl-soft: #f8ffae;

  /* Quiz feedback (kept for legibility) */
  --ok: #15633a;
  --ok-soft: #f1faf2;
  --err: #9d1b1b;
  --err-soft: #fbf0ee;

  /* Type */
  --sans: ui-sans-serif, -apple-system, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --display: ui-sans-serif, -apple-system, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --serif: var(--display); /* alias — design uses sans throughout */
  --mono: "JetBrains Mono", ui-monospace, Menlo, monospace;

  /* Radius / layout */
  --r-xs: 2px;
  --r-sm: 4px;
  --r-md: 6px;
  --r-lg: 10px;
  --maxw: 1180px;
  --maxw-narrow: 880px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--hl); color: var(--ink); }

a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--line); text-decoration-thickness: 1px; }
a:hover { text-decoration-color: var(--ink); }

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

/* ---------- Type ---------- */
h1, h2, h3, h4 { font-family: var(--display); font-weight: 600; color: var(--ink); letter-spacing: -0.025em; margin: 0; }
h1 { font-size: clamp(44px, 7vw, 96px); line-height: 0.98; letter-spacing: -0.045em; font-weight: 700; }
h2 { font-size: clamp(28px, 3.6vw, 44px); line-height: 1.05; letter-spacing: -0.03em; font-weight: 600; }
h3 { font-size: clamp(18px, 1.6vw, 22px); line-height: 1.2; letter-spacing: -0.015em; font-weight: 600; }
h4 { font-size: 16px; line-height: 1.3; font-weight: 600; letter-spacing: -0.005em; }
p { margin: 0 0 1em; text-wrap: pretty; }

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.lead {
  font-size: clamp(17px, 1.4vw, 19px);
  color: var(--ink-2);
  max-width: 62ch;
  line-height: 1.5;
}

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

/* Highlighter — a real study-marker swipe */
.hl, mark {
  background: linear-gradient(180deg, transparent 0 38%, var(--hl) 38% 92%, transparent 92% 100%);
  color: var(--ink);
  padding: 0 0.08em;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
  font-style: normal;
}

/* ---------- Layout ---------- */
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }
.container-narrow { max-width: var(--maxw-narrow); margin: 0 auto; padding: 0 32px; }
@media (max-width: 640px) { .container, .container-narrow { padding: 0 20px; } }

section { padding: 96px 0; }
section.tight { padding: 64px 0; }

.section-head { display: flex; align-items: end; justify-content: space-between; gap: 32px; margin-bottom: 48px; }
.section-head .left { max-width: 60ch; }
.section-head .eyebrow { margin-bottom: 12px; display: block; }
@media (max-width: 720px) {
  section { padding: 64px 0; }
  .section-head { flex-direction: column; align-items: flex-start; margin-bottom: 32px; }
}

/* ---------- Top nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--bg) 90%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--ink);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 28px; height: 28px;
  background: var(--ink);
  color: var(--bg);
  display: grid; place-items: center;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.brand-name { font-size: 16px; font-weight: 600; letter-spacing: -0.015em; }
.brand-name strong { font-weight: 700; }
.brand-name span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-left: 10px;
  font-family: var(--mono);
}
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink-2);
  position: relative;
  padding: 4px 0;
  text-decoration: none;
  letter-spacing: -0.005em;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a.disabled { color: var(--muted-2); pointer-events: none; }
.nav-links a.disabled::after {
  content: "Pronto";
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--tag);
  color: var(--muted);
  padding: 2px 6px;
  margin-left: 8px;
  vertical-align: 2px;
}
.nav-links a[aria-current="page"] {
  background: var(--hl);
  padding: 4px 8px;
  margin: -4px -8px;
  color: var(--ink);
}
@media (max-width: 720px) {
  .nav-inner { padding: 12px 20px; }
  .nav-links { gap: 16px; }
  .brand-name span { display: none; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.005em;
  padding: 12px 18px;
  border: 1px solid var(--ink);
  cursor: pointer;
  transition: background .12s ease, color .12s ease, transform .12s ease;
  text-decoration: none !important;
  border-radius: 0;
}
.btn .arrow { transition: transform .15s ease; }
.btn:hover .arrow { transform: translateX(3px); }
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: var(--bg); color: var(--ink); }
.btn-secondary { background: var(--bg); color: var(--ink); }
.btn-secondary:hover { background: var(--ink); color: var(--bg); }
.btn-ghost { background: transparent; color: var(--ink-2); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); }
.btn-sm { padding: 8px 14px; font-size: 13px; }

/* ---------- Hero ---------- */
.hero {
  padding: 80px 0 80px;
  border-bottom: 1px solid var(--ink);
  position: relative;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 64px;
  align-items: end;
}
.hero h1 .accent {
  background: var(--hl);
  color: var(--ink);
  font-style: normal;
  padding: 0 0.06em;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}
.hero .tag-row { display: flex; gap: 8px; margin-bottom: 28px; flex-wrap: wrap; }
.hero .lead { margin-top: 28px; }
.hero-ctas { display: flex; gap: 0; margin-top: 36px; flex-wrap: wrap; }
.hero-ctas .btn + .btn { margin-left: -1px; }
.hero-meta {
  border-left: 1px solid var(--ink);
  padding-left: 32px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.hero-meta .stat { display: flex; flex-direction: column; gap: 4px; }
.hero-meta .stat-num {
  font-family: var(--display);
  font-size: 56px;
  line-height: 0.95;
  letter-spacing: -0.045em;
  font-weight: 700;
}
.hero-meta .stat-label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
@media (max-width: 880px) {
  .hero { padding: 56px 0 56px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-meta { border-left: 0; padding-left: 0; border-top: 1px solid var(--ink); padding-top: 32px; flex-direction: row; flex-wrap: wrap; gap: 24px; }
  .hero-meta .stat { flex: 1 1 30%; }
}

/* tag chip */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--ink);
  padding: 5px 10px;
}
.chip .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--ink); }
.chip.hl { background: var(--hl); border-color: var(--ink); }

/* ---------- Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
}
.step {
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 220px;
  background: var(--bg);
  position: relative;
}
.step:hover { background: var(--bg-elev); }
.step .num {
  font-family: var(--display);
  font-weight: 700;
  font-size: 14px;
  width: 28px; height: 28px;
  background: var(--ink);
  color: var(--bg);
  display: grid; place-items: center;
  letter-spacing: -0.02em;
}
.step h3 { font-size: 18px; font-weight: 600; }
.step p { color: var(--muted); margin: 0; font-size: 14.5px; }
@media (max-width: 880px) { .steps { grid-template-columns: 1fr; } }

/* ---------- Module grid ---------- */
.modgrid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
}
.modgrid .modcard {
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: 28px 28px 24px;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  min-height: 220px;
  position: relative;
  transition: background .15s ease;
  color: var(--ink);
  text-decoration: none;
}
.modgrid .modcard:hover { background: var(--bg-elev); text-decoration: none; }
.modgrid .modcard:hover .modcard-go { color: var(--ink); }
.modgrid .modcard:hover .modcard-go .arrow { transform: translateX(4px); }

.modcard-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
  text-transform: uppercase;
}
.modcard-title {
  font-family: var(--display);
  font-size: 24px;
  line-height: 1.1;
  letter-spacing: -0.025em;
  font-weight: 600;
  margin: 16px 0 12px;
  color: var(--ink);
}
.modcard-desc { color: var(--muted); font-size: 14px; margin: 0; flex-grow: 1; line-height: 1.5; }
.modcard-go {
  margin-top: 20px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}
.modcard-go .arrow { transition: transform .15s ease; }
.modcard-status {
  position: absolute;
  top: 20px; right: 22px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted-2);
  padding: 2px 6px;
}
.modcard-status.ready {
  background: var(--hl);
  color: var(--ink);
}
@media (max-width: 980px) { .modgrid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .modgrid { grid-template-columns: 1fr; } }

/* index page header */
.index-head {
  border-bottom: 1px solid var(--ink);
  padding: 64px 0 48px;
}
.index-head h1 { margin-bottom: 16px; }
.index-head .meta-row {
  display: flex;
  gap: 24px;
  margin-top: 32px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  flex-wrap: wrap;
}

/* ---------- Purpose ---------- */
.purpose {
  background: var(--ink);
  color: var(--bg);
  padding: 80px 0;
}
.purpose h2, .purpose h3, .purpose .brand-line { color: var(--bg); }
.purpose .grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 64px; align-items: start; }
.purpose .eyebrow { color: color-mix(in oklab, var(--bg) 60%, transparent); }
.purpose p { color: color-mix(in oklab, var(--bg) 80%, transparent); }
.purpose p.big { font-size: clamp(22px, 2.4vw, 30px); line-height: 1.25; color: var(--bg); margin-bottom: 0; letter-spacing: -0.025em; font-weight: 500; }
.purpose ::selection { background: var(--hl); color: var(--ink); }
@media (max-width: 880px) { .purpose .grid { grid-template-columns: 1fr; gap: 32px; } }

/* ---------- Module detail page ---------- */
.mod-hero {
  padding: 56px 0 64px;
  border-bottom: 1px solid var(--ink);
}
.breadcrumb {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 32px;
}
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb .sep { margin: 0 10px; opacity: .5; }
.breadcrumb .current { color: var(--ink); }

.mod-num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 18px;
  display: inline-block;
  background: var(--hl);
  padding: 4px 8px;
}
.mod-title {
  font-size: clamp(40px, 6.5vw, 84px);
  line-height: 0.98;
  margin-bottom: 24px;
  font-weight: 700;
  letter-spacing: -0.04em;
}
.mod-desc { font-size: clamp(17px, 1.4vw, 19px); color: var(--ink-2); max-width: 65ch; line-height: 1.5; }

.mod-status-row {
  display: flex;
  gap: 8px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.status-pill {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 5px 10px;
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--muted);
}
.status-pill.ready {
  background: var(--hl);
  border-color: var(--ink);
  color: var(--ink);
  font-weight: 500;
}

/* layout w/ TOC sidebar */
.mod-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 64px;
  padding: 56px 0 96px;
  align-items: start;
}
.mod-toc {
  position: sticky;
  top: 96px;
  font-size: 13.5px;
}
.mod-toc .eyebrow { display: block; margin-bottom: 16px; }
.mod-toc ol { list-style: none; padding: 0; margin: 0; counter-reset: toc; }
.mod-toc li { counter-increment: toc; }
.mod-toc a {
  display: block;
  padding: 9px 0 9px 28px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 13px;
  position: relative;
  text-decoration: none;
}
.mod-toc li:last-child a { border-bottom: 1px solid var(--line); }
.mod-toc a::before {
  content: counter(toc, decimal-leading-zero);
  position: absolute; left: 0; top: 9px;
  font-family: var(--mono); font-size: 10.5px; color: var(--muted-2); letter-spacing: 0.1em;
}
.mod-toc a:hover { color: var(--ink); }
.mod-toc a.active {
  color: var(--ink);
  background: var(--hl);
  padding-left: 28px;
}
.mod-toc a.active::before { color: var(--ink); left: 4px; }

.mod-content { min-width: 0; }
.mod-section { padding: 56px 0; border-top: 1px solid var(--ink); scroll-margin-top: 96px; }
.mod-section:first-child { border-top: 0; padding-top: 0; }
.mod-section h2 { margin-bottom: 24px; }
.mod-section .eyebrow { display: block; margin-bottom: 12px; }
.mod-section h2 + .lead { margin-bottom: 32px; }
.mod-content p, .mod-content li { color: var(--ink-2); }

/* Objetivos */
.objetivos { list-style: none; padding: 0; margin: 0; display: grid; gap: 0; border-top: 1px solid var(--ink); }
.objetivos li {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}
.objetivos li::before {
  content: counter(obj-counter, decimal-leading-zero);
  counter-increment: obj-counter;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted-2);
  flex-shrink: 0;
  min-width: 36px;
  padding-top: 3px;
}
.objetivos { counter-reset: obj-counter; }

/* Conceptos */
.concept-list { display: grid; gap: 0; border-top: 1px solid var(--ink); }
.concept {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 32px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.concept dt {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.concept dd { margin: 0; color: var(--ink-2); font-size: 14.5px; line-height: 1.5; }
@media (max-width: 720px) { .concept { grid-template-columns: 1fr; gap: 4px; } }

/* Materiales */
.materiales { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--ink); }
.materiales li {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 14.5px;
}
.materiales li .type {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 3px 7px;
  background: var(--ink);
  color: var(--bg);
  font-weight: 500;
}

/* Placeholder */
.placeholder {
  background: repeating-linear-gradient(
    -45deg,
    var(--bg-elev),
    var(--bg-elev) 8px,
    transparent 8px,
    transparent 16px
  );
  border: 1px dashed var(--ink);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
}
.placeholder .label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--hl);
  padding: 3px 8px;
}
.placeholder .msg { color: var(--ink-2); font-size: 14.5px; max-width: 60ch; margin: 0; }

/* Notas personales */
.notas-wrap { border: 1px solid var(--ink); overflow: hidden; background: var(--bg-card); }
.notas-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--ink);
  background: var(--bg-elev);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.notas-bar .saved { color: var(--ok); display: none; }
.notas-bar .saved.show { display: inline; }
textarea.notas {
  width: 100%;
  min-height: 220px;
  padding: 20px;
  border: 0;
  background: transparent;
  font-family: var(--sans);
  font-size: 15.5px;
  color: var(--ink);
  line-height: 1.55;
  resize: vertical;
  outline: none;
}
textarea.notas::placeholder { color: var(--muted-2); }

/* Quiz */
.quiz {
  background: var(--bg);
  border: 1px solid var(--ink);
  padding: 28px;
}
.quiz-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 16px;
  margin-bottom: 24px; padding-bottom: 18px;
  border-bottom: 1px solid var(--ink);
}
.quiz-head h3 { font-size: 20px; font-weight: 600; letter-spacing: -0.02em; }
.quiz-progress {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
}
.q { padding: 24px 0; border-top: 1px solid var(--line); }
.q:first-child { border-top: 0; padding-top: 0; }
.q-num {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 10px;
  display: block;
}
.q-stem {
  font-size: 18px;
  line-height: 1.35;
  margin-bottom: 18px;
  color: var(--ink);
  letter-spacing: -0.015em;
  font-weight: 500;
}
.q-options { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.q-options li label {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  cursor: pointer;
  background: var(--bg);
  font-size: 14.5px;
  color: var(--ink-2);
  transition: border-color .12s, background .12s;
}
.q-options li label:hover { border-color: var(--ink); }
.q-options input { margin-top: 4px; accent-color: var(--ink); }
.q-options li.correct label {
  background: var(--hl);
  border-color: var(--ink);
  color: var(--ink);
}
.q-options li.incorrect label {
  background: var(--err-soft);
  border-color: var(--err);
  color: var(--ink);
}
.q-feedback {
  display: none;
  margin-top: 14px;
  padding: 12px 16px;
  font-size: 14px;
  border: 1px solid;
}
.q-feedback.show { display: block; }
.q-feedback.ok { background: var(--bg); border-color: var(--ink); color: var(--ink); border-left-width: 4px; }
.q-feedback.err { background: var(--err-soft); border-color: var(--err); color: var(--err); border-left-width: 4px; }
.q-feedback strong { font-weight: 700; }

.quiz-actions { display: flex; gap: 0; margin-top: 28px; align-items: center; flex-wrap: wrap; }
.quiz-actions .btn + .btn { margin-left: -1px; }
.quiz-score {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  margin-left: auto;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.quiz-score strong { color: var(--ink); font-size: 14px; }

@media (max-width: 880px) {
  .mod-layout { grid-template-columns: 1fr; gap: 32px; }
  .mod-toc { position: static; }
  .mod-toc ol { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
  .mod-toc li:nth-child(even) a { border-left: 1px solid var(--line); padding-left: 36px; }
}

/* ---------- Footer ---------- */
footer.foot {
  border-top: 1px solid var(--ink);
  padding: 48px 0;
  margin-top: 32px;
  color: var(--muted);
  font-size: 13px;
}
footer.foot .container { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; align-items: end; }
footer.foot .brand-line { font-size: 18px; color: var(--ink); margin-bottom: 6px; font-weight: 600; letter-spacing: -0.015em; }
footer.foot a { color: var(--muted); text-decoration: none; }
footer.foot a:hover { color: var(--ink); }
footer.foot .links { display: flex; gap: 20px; font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; }

/* small helpers */
.divider { border: 0; border-top: 1px solid var(--ink); margin: 0; }
.muted { color: var(--muted); }
.row { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.spacer-1 { height: 16px; } .spacer-2 { height: 32px; } .spacer-3 { height: 48px; }

/* ============================================================
   AUTH — header pills, request/login forms, gates and banners
   ============================================================ */

.nav-auth {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: 8px;
  padding-left: 16px;
  border-left: 1px solid var(--line);
}
.auth-btn {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 12px;
  border: 1px solid var(--ink);
  background: var(--bg);
  color: var(--ink);
  text-decoration: none !important;
  letter-spacing: -0.005em;
  white-space: nowrap;
  cursor: pointer;
}
.auth-btn:hover { background: var(--ink); color: var(--bg); }
.auth-btn.primary { background: var(--ink); color: var(--bg); }
.auth-btn.primary:hover { background: var(--bg); color: var(--ink); }
.auth-btn.ghost { background: transparent; border-color: var(--line); color: var(--muted); }
.auth-btn.ghost:hover { background: transparent; border-color: var(--ink); color: var(--ink); }
.auth-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 5px 10px;
  border: 1px solid var(--ink);
  background: var(--hl);
  color: var(--ink);
  font-weight: 500;
  white-space: nowrap;
  text-decoration: none !important;
}
.auth-status.pending { background: var(--bg-elev); border-color: var(--line); color: var(--ink); }
.auth-status.pending::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--ink); animation: pulse 1.6s infinite; }
.auth-status.approved::before { content: "✓"; font-family: var(--sans); font-weight: 700; }
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

@media (max-width: 880px) {
  .nav-auth { border-left: 0; padding-left: 0; margin-left: 0; }
  .nav-links { flex-wrap: wrap; row-gap: 8px; }
}
@media (max-width: 540px) {
  .auth-btn { padding: 5px 9px; font-size: 12px; }
  .auth-status { font-size: 10px; padding: 4px 8px; }
}

/* ---------- Auth pages (request / login / pending) ---------- */
.auth-page {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 0;
  min-height: calc(100vh - 56px);
  border-top: 1px solid var(--ink);
}
.auth-page-aside {
  background: var(--ink);
  color: var(--bg);
  padding: 80px 56px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}
.auth-page-aside .eyebrow { color: color-mix(in oklab, var(--bg) 55%, transparent); }
.auth-page-aside h1 { color: var(--bg); font-size: clamp(40px, 5.4vw, 72px); line-height: 0.98; letter-spacing: -0.04em; margin-top: 16px; }
.auth-page-aside h1 .accent { background: var(--hl); color: var(--ink); padding: 0 0.06em; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
.auth-page-aside p { color: color-mix(in oklab, var(--bg) 75%, transparent); max-width: 42ch; line-height: 1.5; margin-top: 24px; font-size: 16px; }
.auth-page-aside .aside-meta {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 48px;
  border-top: 1px solid color-mix(in oklab, var(--bg) 22%, transparent);
  padding-top: 24px;
}
.auth-page-aside .meta-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 13.5px;
  color: color-mix(in oklab, var(--bg) 80%, transparent);
}
.auth-page-aside .meta-item .meta-num {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--hl);
  flex-shrink: 0;
  padding-top: 2px;
  min-width: 26px;
}

.auth-page-form {
  padding: 80px 56px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--bg);
}
.auth-form-inner { max-width: 460px; width: 100%; margin: 0 auto; }
.auth-page-form h2 {
  font-size: clamp(26px, 3vw, 34px);
  margin-bottom: 12px;
  letter-spacing: -0.025em;
}
.auth-page-form .subhead { color: var(--muted); margin-bottom: 36px; font-size: 15px; }

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
}
.field label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
}
.field input,
.field textarea {
  font-family: var(--sans);
  font-size: 15px;
  padding: 12px 14px;
  border: 1px solid var(--ink);
  background: var(--bg);
  color: var(--ink);
  width: 100%;
  outline: none;
  border-radius: 0;
}
.field textarea { min-height: 120px; resize: vertical; line-height: 1.45; font-family: var(--sans); }
.field input:focus,
.field textarea:focus { border-color: var(--ink); box-shadow: 0 0 0 3px var(--hl); }
.field .hint { font-size: 12px; color: var(--muted); }
.field.error input,
.field.error textarea { border-color: var(--err); }
.field.error .hint { color: var(--err); }

.form-actions {
  display: flex;
  align-items: center;
  gap: 0;
  margin-top: 8px;
  flex-wrap: wrap;
}
.form-actions .btn + .btn { margin-left: -1px; }
.form-actions .secondary-link {
  margin-left: 16px;
  font-size: 13.5px;
  color: var(--muted);
  text-decoration: none;
}
.form-actions .secondary-link:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }

.demo-note {
  margin-top: 32px;
  padding: 14px 16px;
  background: var(--hl-soft);
  border: 1px dashed var(--ink);
  font-size: 13px;
  color: var(--ink-2);
}
.demo-note .lbl {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--ink); display: block; margin-bottom: 4px;
}

.status-card {
  border: 1px solid var(--ink);
  padding: 36px 36px 32px;
  margin-bottom: 24px;
}
.status-card .status-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 5px 10px;
  background: var(--hl);
  color: var(--ink);
  margin-bottom: 18px;
}
.status-card h2 { font-size: 30px; letter-spacing: -0.025em; margin-bottom: 12px; }
.status-card p { color: var(--ink-2); font-size: 15.5px; line-height: 1.55; }
.status-card .meta-line {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.status-card .meta-line strong { color: var(--ink); }

@media (max-width: 880px) {
  .auth-page { grid-template-columns: 1fr; min-height: auto; }
  .auth-page-aside { padding: 56px 32px; }
  .auth-page-form { padding: 56px 32px; }
}
@media (max-width: 540px) {
  .auth-page-aside { padding: 40px 20px; }
  .auth-page-form { padding: 40px 20px; }
}

/* ---------- Preview banner (Module 01) ---------- */
.preview-banner {
  background: var(--hl);
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  position: relative;
  z-index: 10;
}
.preview-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 32px;
  flex-wrap: wrap;
}
.preview-banner .preview-banner-text { max-width: 60ch; }
.preview-banner .lbl {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  display: inline-block;
  margin-bottom: 4px;
  background: var(--ink);
  color: var(--hl);
  padding: 2px 6px;
}
.preview-banner p { margin: 0; font-size: 14.5px; color: var(--ink); line-height: 1.5; }
.preview-banner p strong { font-weight: 700; }
.preview-banner .btn-primary { background: var(--ink); color: var(--hl); border-color: var(--ink); flex-shrink: 0; }
.preview-banner .btn-primary:hover { background: var(--bg); color: var(--ink); }

/* ---------- Module gate (locked content) ---------- */
.gate-panel {
  border: 1px solid var(--ink);
  padding: 56px 48px;
  background: var(--bg-elev);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  position: relative;
  overflow: hidden;
}
.gate-panel .gate-lock {
  font-family: var(--mono);
  font-size: 56px;
  line-height: 1;
  color: var(--ink);
  background: var(--hl);
  padding: 12px 16px;
  display: inline-block;
  margin-bottom: 28px;
  letter-spacing: -0.02em;
}
.gate-panel .eyebrow { display: block; margin-bottom: 12px; }
.gate-panel h2 { font-size: clamp(28px, 3.4vw, 40px); letter-spacing: -0.03em; margin-bottom: 16px; }
.gate-panel .lead { max-width: 56ch; color: var(--ink-2); font-size: 16.5px; }
.gate-panel .gate-ctas { display: flex; gap: 0; margin-top: 28px; flex-wrap: wrap; }
.gate-panel .gate-ctas .btn + .btn { margin-left: -1px; }
.gate-panel .gate-note {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  color: var(--muted);
  max-width: 56ch;
}
.gate-panel .gate-note a { color: var(--ink); }

@media (max-width: 640px) {
  .gate-panel { padding: 40px 28px; }
}

/* ---------- Module index — lock badge on cards ---------- */
.modcard-lock {
  position: absolute;
  bottom: 24px; right: 24px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 3px 7px;
  background: var(--bg);
  border: 1px solid var(--ink);
  color: var(--ink);
}
.modcard-lock.preview { background: var(--hl); }
.modcard-lock.locked::before { content: "⌗"; margin-right: 5px; font-weight: 700; }
.modcard.is-locked .modcard-title { color: var(--muted); }
.modcard.is-locked:hover .modcard-title { color: var(--ink); }