/* ============================================================
   RefStamp — Shared Stylesheet
   Design tokens from brand/design-tokens.json
   No build step. Loaded by every page.
   ============================================================ */

:root {
  /* ---- Light palette ---- */
  --ink: #16233A;
  /* Primary Ink Navy */
  --seal: #2F5D50;
  /* Secondary Seal Green */
  --signet: #B0331F;
  /* Accent Signet Red (the "stamp") */
  --parchment: #F4F1EA;
  /* Tertiary Parchment */
  --paper: #FCFBF8;
  /* Background Paper White */
  --text: #1B2430;
  /* Text Graphite */
  --muted: #4A5462;
  /* Muted */

  /* ---- Neutral ramp ---- */
  --n-900: #14181F;
  --n-700: #3A424E;
  --n-500: #6B7280;
  --n-300: #D7D3CA;
  --n-100: #EFEDE6;

  /* ---- Dark palette (sections) ---- */
  --d-bg: #0E141F;
  /* Midnight Ink */
  --d-surface: #182231;
  /* Slate Panel */
  --d-primary: #7FA8D9;
  /* Sky Signet */
  --d-accent: #E0684F;
  /* Ember Red */
  --d-secondary: #6FBAA6;
  /* Mint Seal */
  --d-text: #E9ECF1;
  /* Fog */
  --d-muted: #9AA6B6;
  /* Steel */

  /* ---- Radius ---- */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 20px;
  --r-pill: 999px;

  /* ---- Spacing rhythm (generous) ---- */
  --space: 20px;
  --maxw: 1160px;

  /* ---- Shadows (subtle -> elevated) ---- */
  --shadow-soft: 0 1px 2px rgba(22, 35, 58, 0.04), 0 8px 24px rgba(22, 35, 58, 0.06);
  --shadow-lift: 0 2px 6px rgba(22, 35, 58, 0.05), 0 18px 48px rgba(22, 35, 58, 0.10);

  /* ---- Fonts ---- */
  --font-display: 'Sora', system-ui, -apple-system, sans-serif;
  --font-heading: 'Oswald', "Arial Narrow", sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, monospace;

  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  background: var(--paper);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0;
  line-height: 1.1;
  text-wrap: balance;
}

p {
  margin: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

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

code,
.mono {
  font-family: var(--font-mono);
  font-weight: 500;
}

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

/* ---- Skip link ---- */
.skip-link {
  position: absolute;
  left: 16px;
  top: -56px;
  z-index: 200;
  background: var(--ink);
  color: var(--paper);
  padding: 11px 18px;
  border-radius: var(--r-sm);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  transition: top .2s ease;
}

.skip-link:focus-visible {
  top: 12px;
}

/* ---- Offset anchored headings so sticky nav doesn't cover them ---- */
:where(h1, h2, h3, h4)[id],
section[id],
main[id] {
  scroll-margin-top: 90px;
}

/* ---- Layout wrapper ---- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---- Eyebrow (Oswald, sparingly) ---- */
.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}

.eyebrow.accent {
  color: var(--signet);
}

/* ---- Section shells ---- */
section {
  padding: 92px 0;
}

.section-head {
  max-width: 40em;
  margin-bottom: 56px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-head h2 {
  font-size: clamp(1.9rem, 3.6vw, 2.7rem);
  margin: 6px 0 16px;
}

.section-head p {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 66ch;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: -0.02em;
  padding: 13px 24px;
  border-radius: var(--r-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .18s ease, background .18s ease, box-shadow .18s ease, border-color .18s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--signet);
  color: #fff;
  box-shadow: 0 1px 2px rgba(176, 51, 31, 0.25);
}

.btn-primary:hover {
  background: #9b2c1a;
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--n-300);
}

.btn-ghost:hover {
  border-color: var(--ink);
  transform: translateY(-1px);
}

.btn-link {
  background: transparent;
  color: var(--ink);
  border-color: transparent;
  padding: 13px 14px;
}

.btn-link:hover {
  color: var(--signet);
  transform: translateY(-1px);
}

.btn-light {
  background: var(--d-text);
  color: var(--ink);
}

.btn-light:hover {
  transform: translateY(-1px);
}

.btn-outline-light {
  background: transparent;
  color: var(--d-text);
  border-color: var(--d-muted);
}

.btn-outline-light:hover {
  border-color: var(--d-text);
  transform: translateY(-1px);
}

:focus-visible {
  outline: 2px solid var(--signet);
  outline-offset: 3px;
  border-radius: 4px;
}

.dark-mode :focus-visible,
.dark :focus-visible {
  outline-color: var(--d-accent);
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(252, 251, 248, 0.82);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--n-300);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
}

.brand img {
  display: block;
  height: 32px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-links a {
  font-size: 0.92rem;
  color: var(--muted);
  transition: color .15s ease;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--ink);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--ink);
}

.nav-toggle .bar {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}

.nav-toggle .bar+.bar {
  margin-top: 5px;
}

.nav-toggle[aria-expanded="true"] .bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding: 92px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.6rem, 5.4vw, 4.1rem);
  margin-bottom: 22px;
}

.hero-sub {
  font-size: 1.12rem;
  color: var(--muted);
  max-width: 32em;
  margin-bottom: 34px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-meta {
  margin-top: 30px;
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  font-size: 0.86rem;
  color: var(--muted);
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

/* ---- Word task-pane mock ---- */
.mock {
  position: relative;
  border-radius: var(--r-md);
  padding: 18px;
  background: linear-gradient(155deg, #ffffff 0%, #f4f3ef 100%);
  border: 1px solid var(--n-300);
  box-shadow: var(--shadow-lift);
  overflow: hidden;
}

.mock-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--n-300);
  margin-bottom: 16px;
}

.mock-bar .pip {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--n-300);
}

.mock-bar .title {
  margin-left: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.82rem;
  color: var(--ink);
}

.mock-doc {
  background: #fff;
  border: 1px solid var(--n-300);
  border-radius: var(--r-sm);
  min-height: 190px;
  padding: 18px 18px 14px;
  margin-bottom: 14px;
  position: relative;
}

.mock-doc .line {
  height: 9px;
  border-radius: 4px;
  background: var(--n-100);
  margin-bottom: 11px;
}

.mock-doc .line.short {
  width: 58%;
}

.mock-doc .line.mid {
  width: 82%;
}

.mock-stamp {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--ink);
  border: 1px dashed var(--signet);
  padding: 9px 14px;
  border-radius: 6px;
  background: rgba(176, 51, 31, 0.04);
}

.mock-stamp .tick {
  color: var(--signet);
  font-size: 0.95rem;
}

.mock-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.mock-cta .btn {
  flex: 1;
  padding: 11px 16px;
  font-size: 0.88rem;
}

.mock-cta .ghost-mini {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--muted);
  padding: 9px 10px;
  border: 1px solid var(--n-300);
  border-radius: 6px;
}

.mock-scan {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--signet), transparent);
  opacity: 0;
}

/* ============================================================
   FEATURES
   ============================================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.feature {
  background: #fff;
  border: 1px solid var(--n-300);
  border-radius: var(--r-md);
  padding: 30px 28px;
  box-shadow: var(--shadow-soft);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}

.feature:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
  border-color: var(--n-300);
}

.feature .ico {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  border: 1px solid var(--n-300);
  margin-bottom: 20px;
  color: var(--ink);
  background: var(--parchment);
}

.feature h3 {
  font-size: 1.28rem;
  margin-bottom: 10px;
}

.feature p {
  color: var(--muted);
  font-size: 0.98rem;
}

.feature .meta {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

/* ============================================================
   STEPS (how it works)
   ============================================================ */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  counter-reset: step;
}

.step {
  background: #fff;
  border: 1px solid var(--n-300);
  border-radius: var(--r-md);
  padding: 30px 26px;
  position: relative;
}

.step .num {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 600;
  color: var(--signet);
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.step h3 {
  font-size: 1.22rem;
  margin-bottom: 9px;
}

.step p {
  color: var(--muted);
  font-size: 0.97rem;
}

/* ============================================================
   SOCIAL PROOF
   ============================================================ */
.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.quote {
  background: #fff;
  border: 1px solid var(--n-300);
  border-radius: var(--r-md);
  padding: 28px 26px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-soft);
}

.quote .mark {
  font-family: var(--font-display);
  font-size: 2.4rem;
  color: var(--signet);
  line-height: 0.6;
  height: 22px;
}

.quote p {
  color: var(--muted);
  font-size: 1rem;
  margin: 14px 0 22px;
}

.quote .by {
  margin-top: auto;
}

.quote .name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--ink);
}

.quote .role {
  font-size: 0.84rem;
  color: var(--muted);
}

.trust {
  margin-top: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 38px;
  flex-wrap: wrap;
  border-top: 1px solid var(--n-300);
  padding-top: 34px;
}

.trust span {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.02em;
  font-size: 0.86rem;
  color: var(--muted);
}

/* ============================================================
   PRICING
   ============================================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
  max-width: 820px;
  margin: 0 auto;
}

.plan {
  background: #fff;
  border: 1px solid var(--n-300);
  border-radius: var(--r-md);
  padding: 34px 30px;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
}

.plan.featured {
  border-color: var(--signet);
  box-shadow: 0 0 0 1px var(--signet), var(--shadow-lift);
  position: relative;
}

.plan .badge {
  position: absolute;
  top: -11px;
  left: 30px;
  background: var(--signet);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 11px;
  border-radius: var(--r-pill);
}

.plan .pname {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink);
}

.plan .price {
  font-family: var(--font-display);
  font-size: 2.7rem;
  font-weight: 600;
  margin: 14px 0 4px;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.plan .price .per {
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--muted);
  font-weight: 400;
}

.plan .pdesc {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 22px;
}

.plan ul {
  list-style: none;
  padding: 0;
  margin: 0 0 26px;
}

.plan li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 9px 0;
  font-size: 0.95rem;
  color: var(--muted);
  border-top: 1px solid var(--n-300);
}

.plan li svg {
  flex: none;
  margin-top: 3px;
  color: var(--signet);
}

.plan .btn {
  width: 100%;
  margin-top: auto;
}

/* ---- FAQ ---- */
.faq {
  max-width: 760px;
  margin: 0 auto;
}

.faq details {
  border-top: 1px solid var(--n-300);
  padding: 22px 0;
}

.faq details:last-child {
  border-bottom: 1px solid var(--n-300);
}

.faq summary {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.08rem;
  letter-spacing: -0.02em;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

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

.faq summary .chev {
  transition: transform .2s ease;
  color: var(--muted);
  flex: none;
}

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

.faq details p {
  color: var(--muted);
  font-size: 1rem;
  margin-top: 14px;
  max-width: 66ch;
}

/* ============================================================
   DARK SECTION
   ============================================================ */
.dark-mode {
  background: var(--d-bg);
  color: var(--d-text);
}

.dark-mode h2 {
  color: var(--d-text);
}

.dark-mode .section-head p {
  color: var(--d-muted);
}

.dark-mode .eyebrow {
  color: var(--d-muted);
}

.dark-mode .panel {
  background: var(--d-surface);
  border: 1px solid rgba(154, 166, 182, 0.18);
  border-radius: var(--r-lg);
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
}

.dark-mode .panel h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  margin: 6px 0 16px;
}

.dark-mode .panel p {
  color: var(--d-muted);
  font-size: 1.02rem;
}

.dark-mode .panel .btn-row {
  margin-top: 26px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.dark-mock {
  background: #11161C;
  border: 1px solid rgba(154, 166, 182, 0.18);
  border-radius: var(--r-sm);
  padding: 20px;
}

.dark-mock .dm-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid rgba(154, 166, 182, 0.18);
}

.dark-mock .dm-row:last-child {
  border-bottom: none;
}

.dark-mock .dm-code {
  font-family: var(--font-mono);
  font-size: 1.02rem;
  color: var(--d-text);
}

.dark-mock .dm-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--d-accent);
}

.placeholder-note {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: var(--parchment);
  border: 1px solid var(--n-300);
  border-left: 3px solid var(--signet);
  border-radius: var(--r-sm);
  padding: 16px 18px;
  margin: 18px 0;
  color: var(--text);
  font-size: 0.95rem;
}

.placeholder-note svg {
  flex: none;
  color: var(--signet);
  margin-top: 2px;
}

.placeholder-banner {
  background: var(--parchment);
  border: 1px dashed var(--signet);
  border-radius: var(--r-md);
  padding: 22px 24px;
  margin-bottom: 40px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.placeholder-banner .pb-ico {
  flex: none;
  color: var(--signet);
  margin-top: 2px;
}

.placeholder-banner h3 {
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.placeholder-banner p {
  color: var(--muted);
  font-size: 0.95rem;
  max-width: 66ch;
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: var(--paper);
  border-top: 1px solid var(--n-300);
  padding: 64px 0 40px;
}

.foot-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 44px;
}

.foot-brand p {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 14px;
  max-width: 24em;
}

.foot-col h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  margin: 0 0 16px;
}

.foot-col a {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
  padding: 6px 0;
}

.foot-col a:hover {
  color: var(--ink);
}

.foot-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 26px;
  border-top: 1px solid var(--n-300);
  color: var(--muted);
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 12px;
}

.foot-bottom a {
  color: var(--muted);
}

.foot-bottom a:hover {
  color: var(--ink);
}

/* ============================================================
   REVEAL ANIMATION
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .7s ease, transform .7s ease;
}

.reveal.in {
  opacity: 1;
  transform: none;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .features-grid,
  .proof-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .steps {
    gap: 18px;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .dark-mode .panel {
    grid-template-columns: 1fr;
  }

  .foot-grid {
    grid-template-columns: 1fr 1fr;
  }

  .nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  .nav-cta .btn-ghost {
    display: none;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(252, 251, 248, 0.97);
    backdrop-filter: saturate(140%) blur(12px);
    -webkit-backdrop-filter: saturate(140%) blur(12px);
    border-bottom: 1px solid var(--n-300);
    flex-direction: column;
    padding: 20px 28px 24px;
    gap: 16px;
    z-index: 49;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    font-size: 1rem;
    padding: 6px 0;
  }
}

@media (max-width: 560px) {
  .wrap {
    padding: 0 20px;
  }

  .hero {
    padding: 64px 0 56px;
  }

  section {
    padding: 64px 0;
  }

  .foot-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .dark-mode .panel {
    padding: 28px;
  }
}

@media (max-width: 360px) {
  .wrap {
    padding: 0 16px;
  }
}


@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .btn,
  .feature,
  .mock-scan {
    transition: none !important;
  }
}