/* ==========================================================================
   UpShift AI — "The operating manual for AI-native companies"
   Editorial field-manual aesthetic. Light theme, paper + ink + signal orange.
   ========================================================================== */

/* ---- Tokens ---- */
:root {
  --paper: #F5F1E8;
  --paper-raised: #FBF8F0;
  --paper-dim: #EDE6D6;
  --ink: #16130D;
  --ink-soft: rgba(22, 19, 13, 0.78);
  --ink-mute: rgba(22, 19, 13, 0.62);
  --rule: rgba(22, 19, 13, 0.14);
  --rule-strong: rgba(22, 19, 13, 0.32);
  --signal: #E8480C;
  --signal-text: #C23A08;   /* darkened signal for small text on paper (AA) */
  --paper-on-ink: #F5F1E8;
  --ink-70-on-ink: rgba(245, 241, 232, 0.78);
  --ink-mute-on-ink: rgba(245, 241, 232, 0.6);
  --rule-on-ink: rgba(245, 241, 232, 0.22);

  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Archivo", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4rem;
}

/* ---- Reset & base ---- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  color-scheme: light;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

html { scroll-padding-top: 5.5rem; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  font-optical-sizing: auto;
}

/* Paper grain over everything, CSS only */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 80;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
}

h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }

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

a { color: inherit; }

::selection { background: var(--signal); color: var(--paper); }

:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 3px;
}
.dark :focus-visible { outline-color: var(--paper); }

.container {
  width: min(100% - clamp(2.5rem, 8vw, 6rem), 1180px);
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  padding: 0.75rem 1rem;
}
.skip-link:focus { left: 0; }

/* ---- Shared components ---- */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.eyebrow-mark {
  flex: none;
  width: 10px;
  height: 10px;
  background: var(--signal);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.95rem 1.5rem;
  border: 2px solid var(--ink);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease,
              background-color 0.15s ease, color 0.15s ease;
}

.btn-sm { padding: 0.6rem 1rem; font-size: 0.71875rem; }

.btn-primary { background: var(--signal); color: var(--ink); }
.btn-primary:hover {
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 var(--ink);
}
.btn-primary:active { transform: none; box-shadow: none; }

.btn-ghost:hover {
  background: var(--ink);
  color: var(--paper);
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 var(--signal);
}
.btn-ghost:active { transform: none; box-shadow: none; }

.dark .btn-primary:hover { box-shadow: 4px 4px 0 var(--paper); }

.btn-glyph { font-family: var(--font-body); }

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 241, 232, 0.92);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--ink);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding-block: 0.85rem;
  flex-wrap: wrap;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.mark {
  display: grid;
  place-items: center;
  width: 1.55rem;
  height: 1.55rem;
  background: var(--signal);
  color: var(--ink);
  border: 1.5px solid var(--ink);
  box-shadow: 2px 2px 0 var(--ink);
  font-size: 1.05rem;
  line-height: 1;
}

.wordmark-text {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 900;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  line-height: 1;
}

.site-nav {
  margin-left: auto;
  display: flex;
  gap: 1.6rem;
  flex-wrap: wrap;
}

.site-nav a,
.footer-nav a {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  text-decoration: none;
  background-image: linear-gradient(var(--signal), var(--signal));
  background-repeat: no-repeat;
  background-size: 0% 2px;
  background-position: left 100%;
  padding-bottom: 3px;
  transition: background-size 0.2s ease, color 0.15s ease;
}

.site-nav a:hover,
.footer-nav a:hover { background-size: 100% 2px; }

/* ---- Hero ---- */
.hero {
  position: relative;
  padding-block: clamp(4rem, 9vw, 7rem) clamp(3.5rem, 7vw, 5.5rem);
}

/* Ruled ledger paper, fading out below the fold */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0 43px,
    rgba(22, 19, 13, 0.06) 43px 44px
  );
  -webkit-mask-image: linear-gradient(to bottom, black 55%, transparent 100%);
  mask-image: linear-gradient(to bottom, black 55%, transparent 100%);
}

.hero > .container { position: relative; }

.hero h1 {
  margin-top: 1.4rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.6rem, 6.5vw, 5.25rem);
  line-height: 1.02;
  letter-spacing: -0.015em;
  max-width: 20ch;
}

.hero-line2 { display: block; }

/* Marker-swipe highlight under "fluent." */
.hl {
  font-style: italic;
  position: relative;
  white-space: nowrap;
  isolation: isolate;
}
.hl::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: -0.08em;
  right: -0.08em;
  bottom: 0.04em;
  height: 0.34em;
  background: var(--signal);
  transform: skewX(-8deg);
}

.hero-aside {
  margin-top: clamp(2.25rem, 4vw, 3.25rem);
  margin-left: auto;
  max-width: 40rem;
  border-left: 2px solid var(--ink);
  padding-left: clamp(1.25rem, 3vw, 2rem);
}

.hero-sub {
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  line-height: 1.65;
  color: var(--ink-soft);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: 1.75rem;
}

.hero-meta {
  margin-top: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* ---- Page-load reveal ---- */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    animation: rise 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) both;
    animation-delay: var(--d, 0ms);
  }
  @keyframes rise {
    from { opacity: 0; transform: translateY(18px); }
    to { opacity: 1; transform: none; }
  }
}

/* ---- Ticker ---- */
.ticker {
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
}

.ticker-track {
  display: flex;
  width: max-content;
  animation: ticker 30s linear infinite;
}

.ticker:hover .ticker-track { animation-play-state: paused; }

.ticker-half {
  white-space: nowrap;
  padding-block: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.tick-dot { font-style: normal; color: var(--signal); padding-inline: 0.9em; }

@keyframes ticker {
  to { transform: translateX(-50%); }
}

/* ---- Sections ---- */
.section { padding-block: clamp(4.5rem, 9vw, 7.5rem); }

.section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(1.25rem, 3vw, 2.75rem);
  align-items: end;
  border-top: 3px solid var(--ink);
  padding-top: 1.5rem;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-index {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(3.2rem, 7vw, 5.5rem);
  line-height: 0.85;
  letter-spacing: -0.02em;
  color: transparent;
  -webkit-text-stroke: 2px var(--ink);
}

@supports not (-webkit-text-stroke: 2px black) {
  .section-index { color: var(--signal); }
}

.section-head .eyebrow { margin-bottom: 0.9rem; }

.section-head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 3.4vw, 3.1rem);
  line-height: 1.05;
  letter-spacing: -0.015em;
  max-width: 24ch;
}

.section-lede {
  margin-top: 1.1rem;
  max-width: 56ch;
  color: var(--ink-soft);
}

/* Ledger rows (01) */
.ledger { border-top: 1px solid var(--rule-strong); }

.ledger-row {
  display: grid;
  grid-template-columns: 5rem 1fr 1.1fr;
  gap: var(--space-4);
  align-items: start;
  padding-block: 1.7rem;
  border-bottom: 1px solid var(--rule-strong);
}

.clause {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--signal-text);
  padding-top: 0.3rem;
}

.ledger-row h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.ledger-row p {
  color: var(--ink-soft);
  max-width: 48ch;
}

.section-footnote {
  margin-top: 2.25rem;
  max-width: 60ch;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 600;
  font-size: 1.3rem;
  line-height: 1.4;
  border-left: 4px solid var(--signal);
  padding-left: 1.25rem;
}

/* ---- Programs (02) ---- */
.program-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.25rem, 3vw, 2rem);
}

.program-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  background: var(--paper-raised);
  border: 1px solid var(--rule-strong);
  padding: clamp(1.5rem, 3vw, 2rem);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.program-card:hover {
  transform: translateY(-6px);
  border-color: var(--ink);
  box-shadow: 10px 12px 0 rgba(22, 19, 13, 0.1);
}

/* The on-ramp: full-width, emphasized */
.program-card--lead {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: var(--space-5);
  border: 2px solid var(--ink);
}

.program-card--lead:hover {
  box-shadow: 12px 14px 0 rgba(232, 72, 12, 0.18);
}

.lead-main, .lead-side {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.lead-side { align-items: flex-start; }

.program-tag {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal-text);
  margin-bottom: 0.5rem;
}

.chip {
  background: var(--signal);
  color: var(--ink);
  border: 1.5px solid var(--ink);
  padding: 0.25rem 0.55rem;
}

.program-card h3 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 2.4vw, 1.9rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.program-card--lead h3 { font-size: clamp(1.8rem, 3vw, 2.4rem); }

.program-fact {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-top: 0.4rem;
}

.program-body { color: var(--ink-soft); }

.program-frame {
  margin-top: 0.5rem;
  padding-left: 1rem;
  border-left: 3px solid var(--signal);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.1rem;
  line-height: 1.45;
}

.program-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-3);
}

/* Ticket-style price tag */
.ticket {
  flex: none;
  align-self: flex-start;
  background: var(--signal);
  color: var(--ink);
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  padding: 0.7rem 1rem 0.8rem;
  transform: rotate(-3deg);
  transition: transform 0.25s ease;
  min-width: 8.25rem;
  position: relative;
}

.ticket::before {
  content: "";
  position: absolute;
  inset: 4px;
  border: 1px dashed rgba(22, 19, 13, 0.5);
  pointer-events: none;
}

.program-card:hover .ticket { transform: rotate(0deg) scale(1.04); }

.ticket-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.ticket-price {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.55rem;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.ticket-serial {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  opacity: 0.75;
  margin-top: 0.2rem;
}

.deliverables {
  margin-top: 0.5rem;
  border-top: 1px solid var(--rule-strong);
}

.deliverables li {
  position: relative;
  padding: 0.55rem 0 0.55rem 1.5rem;
  border-bottom: 1px dashed var(--rule);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.5;
}

.deliverables li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--signal-text);
  font-weight: 600;
}

.program-note {
  padding-left: 1rem;
  border-left: 3px solid var(--signal);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.55;
  color: var(--ink-soft);
}

/* Fractional tier rows */
.tiers {
  border: 1px solid var(--rule-strong);
  margin-top: 0.5rem;
}

.tier-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-2);
  flex-wrap: wrap;
  padding: 0.6rem 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
}

.tier-row + .tier-row { border-top: 1px dashed var(--rule); }

.tier-name {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--signal-text);
}

.programs-note {
  margin-top: var(--space-4);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--ink-mute);
}

/* ---- How it works (03) ---- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  counter-reset: step;
}

.step {
  border-top: 3px solid var(--ink);
  padding-top: 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.step .clause { padding-top: 0; }

.step h3 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.75rem;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.step p { color: var(--ink-soft); font-size: 1rem; }

.delivery-note {
  margin-top: var(--space-5);
  border: 2px solid var(--ink);
  background: var(--paper-raised);
  padding: 1.5rem 1.75rem;
  display: flex;
  gap: var(--space-4);
  align-items: baseline;
  flex-wrap: wrap;
}

.delivery-label {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal-text);
}

.delivery-text {
  font-family: var(--font-display);
  font-size: 1.15rem;
  line-height: 1.45;
  max-width: 62ch;
}

/* ---- Syllabus (04) ---- */
.syllabus-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.day-head {
  border-bottom: 2px solid var(--ink);
  padding-bottom: 0.9rem;
  margin-bottom: 1.4rem;
}

.day-label {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal-text);
}

.day-head h3 {
  margin-top: 0.3rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
}

.modules { display: grid; gap: 0.8rem; }

.module {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  border: 1px solid var(--rule);
  border-left: 3px solid transparent;
  background: var(--paper-raised);
  padding: 0.95rem 1.1rem;
  transition: transform 0.2s ease, border-color 0.2s ease,
              background-color 0.2s ease;
}

.module:hover {
  transform: translateX(6px);
  border-left-color: var(--signal);
  background: var(--paper);
}

.module-no {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--signal-text);
  padding-top: 0.2rem;
}

.module h4 {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.3;
}

.module p {
  margin-top: 0.2rem;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--ink-soft);
}

/* Capstone: dark, spans both columns */
.module-capstone {
  grid-column: 1 / -1;
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  padding: 1.5rem 1.75rem;
  align-items: start;
}

.module-capstone .module-no { color: var(--ink-mute-on-ink); }

.module-capstone:hover {
  transform: translateY(-3px);
  border-left-color: var(--signal);
  background: var(--ink);
}

.capstone-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  background: var(--signal);
  color: var(--ink);
  padding: 0.3rem 0.55rem;
  margin-bottom: 0.7rem;
}

.module-capstone h4 {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 900;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
}

.module-capstone p {
  color: var(--ink-70-on-ink);
  max-width: 64ch;
}

/* ---- Who it's for (05) ---- */
.audience-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-4);
}

.panel {
  border: 2px solid var(--ink);
  background: var(--paper-raised);
  padding: clamp(1.5rem, 3vw, 2.25rem);
}

.panel-not {
  background: transparent;
  border-style: dashed;
  border-color: var(--rule-strong);
}

.panel-label {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal-text);
  margin-bottom: var(--space-3);
}

.panel ul { display: grid; gap: 1.1rem; }

.panel li {
  position: relative;
  padding-left: 1.7rem;
  line-height: 1.6;
}

.panel li strong { font-weight: 700; }

.panel-for li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--signal-text);
  font-weight: 600;
}

.panel-not li::before {
  content: "×";
  position: absolute;
  left: 0;
  color: var(--signal-text);
  font-weight: 600;
}

/* ---- FAQ (06) ---- */
.faq { border-top: 2px solid var(--ink); }

.faq details { border-bottom: 1px solid var(--rule-strong); }

.faq details:last-child { border-bottom: 2px solid var(--ink); }

.faq summary {
  display: grid;
  grid-template-columns: 4rem 1fr 2rem;
  gap: var(--space-2);
  align-items: start;
  padding: 1.35rem 0.25rem;
  cursor: pointer;
  list-style: none;
}

.faq summary::-webkit-details-marker { display: none; }

.faq-no {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--signal-text);
  padding-top: 0.35rem;
}

.faq-q {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
  transition: color 0.15s ease;
}

.faq summary:hover .faq-q { color: var(--signal-text); }

.faq-marker {
  justify-self: end;
  font-family: var(--font-mono);
  font-size: 1.25rem;
  line-height: 1.3;
  transition: transform 0.25s ease;
}

.faq details[open] .faq-marker { transform: rotate(45deg); }

.faq-a {
  padding: 0.25rem 0.25rem 1.5rem calc(4rem + 1rem + 0.25rem);
  max-width: 68ch;
  color: var(--ink-soft);
}

/* ---- Contact (07) — the dark band ---- */
.dark {
  background: var(--ink);
  color: var(--paper);
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0 39px,
    rgba(245, 241, 232, 0.05) 39px 40px
  );
}

.dark .section-head { border-top-color: var(--paper); }

.dark .section-index { -webkit-text-stroke-color: var(--paper); }

@supports not (-webkit-text-stroke: 2px black) {
  .dark .section-index { color: var(--signal); }
}

.dark .eyebrow { color: var(--ink-mute-on-ink); }

.dark h2 { color: var(--paper); }

.dark h2 em {
  font-style: italic;
  color: var(--signal);
}

.contact-lede {
  max-width: 56ch;
  font-size: 1.125rem;
  color: var(--ink-70-on-ink);
}

.contact-ctas {
  margin-top: 2.25rem;
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.email-link {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--paper);
  text-decoration: underline;
  text-decoration-color: var(--signal);
  text-decoration-thickness: 2px;
  text-underline-offset: 6px;
  transition: color 0.15s ease;
}

.email-link:hover { color: var(--signal); }

.contact-meta {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule-on-ink);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute-on-ink);
}

/* ---- Footer ---- */
.site-footer {
  background: var(--ink);
  color: var(--paper);
  border-top: 1px solid var(--rule-on-ink);
  padding-block: var(--space-5) 2.25rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr auto auto;
  gap: var(--space-5);
  align-items: start;
}

.footer-brand img { width: 44px; height: 44px; }

.footer-wordmark {
  margin-top: 0.9rem;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 900;
  font-size: 1.3rem;
}

.footer-tag {
  margin-top: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute-on-ink);
}

.footer-nav {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  padding-top: 0.4rem;
}

.footer-nav a { color: var(--ink-70-on-ink); }

.footer-nav a:hover { color: var(--paper); }

.footer-legal {
  justify-self: end;
  padding-top: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-mute-on-ink);
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .program-grid { grid-template-columns: 1fr; }
  .program-card--lead { grid-template-columns: 1fr; gap: var(--space-3); }
  .syllabus-grid { grid-template-columns: 1fr; }
  .audience-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: var(--space-4); }
  .footer-legal { justify-self: start; }
}

@media (max-width: 820px) {
  .ledger-row { grid-template-columns: 1fr; gap: 0.5rem; }
  .clause { padding-top: 0; }
}

@media (max-width: 720px) {
  .section-head {
    grid-template-columns: 1fr;
    gap: var(--space-2);
    align-items: start;
  }
  .section-index { font-size: 2.6rem; }
  .faq summary { grid-template-columns: 2.6rem 1fr 1.5rem; }
  .faq-a { padding-left: 0.25rem; }
  .program-top { flex-direction: column; }
  .ticket { align-self: flex-start; }

  /* Compact header: wordmark + CTA on row one, nav scrolls on one line */
  .header-inner {
    gap: 0.55rem 1rem;
    padding-block: 0.6rem;
  }
  .mark { width: 1.35rem; height: 1.35rem; font-size: 0.9rem; box-shadow: 1.5px 1.5px 0 var(--ink); }
  .wordmark-text { font-size: 1.1rem; }
  .site-header .btn-sm {
    margin-left: auto;
    padding: 0.45rem 0.65rem;
    font-size: 0.65625rem;
    letter-spacing: 0.05em;
  }
  .site-nav {
    order: 3;
    flex-basis: 100%;
    margin-left: 0;
    flex-wrap: nowrap;
    gap: 1.1rem;
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  .site-nav::-webkit-scrollbar { display: none; }
  .site-nav a { white-space: nowrap; font-size: 0.71875rem; }
}

/* ---- Course storefront ---- */
.course-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.25rem, 3vw, 2rem);
  margin-top: var(--space-5);
}

.course-card .program-body { flex: 1; }

.course-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.course-buy-body {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-4);
  align-items: center;
  margin-top: var(--space-4);
}

/* Root-page courses band */
.courses-band-body {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-4);
  align-items: center;
  margin-top: var(--space-4);
}

@media (max-width: 900px) {
  .course-grid { grid-template-columns: 1fr; }
  .course-buy-body { grid-template-columns: 1fr; }
  .courses-band-body { grid-template-columns: 1fr; }
  .course-buy .ticket,
  .courses-band .ticket { align-self: flex-start; }
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  .ticker-track { animation: none; }
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}