/* =========================================================================
   Contexto — landing site
   Academic, literary, restrained. Slate = system-translated word.
   Tan = a word you saved. All design tokens pulled from the product.
   ========================================================================= */

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-display: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;

  --ink: #1b2733;
  --ink-2: #475569;
  --ink-3: #8a98a8;
  --eyebrow: #64748b;

  --accent: #2f5d80;
  --accent-strong: #244b69;
  --accent-wash: rgba(47, 93, 128, 0.07);
  --accent-line: rgba(47, 93, 128, 0.55);

  --mark-bg: #f8f2e8;
  --mark-border: #ead9bd;
  --mark-ink: #5a3a10;
  --mark-line: rgba(132, 86, 22, 0.82);
  --mark-wash: rgba(132, 86, 22, 0.07);

  --surface: #ffffff;
  --canvas: #f4f6f9;
  --canvas-2: #f7f9fb;
  --border: #dce3ea;
  --border-strong: #c3cdd7;

  --radius: 9px;
  --radius-sm: 6px;
  --radius-pill: 999px;

  --shadow-card: 0 1px 2px rgba(27, 39, 51, 0.06);

  --measure: 640px;
  --gutter: clamp(20px, 5vw, 40px);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--canvas);
  line-height: 1.6;
  font-size: clamp(16px, 1.05vw + 14px, 18px);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Visible focus rings everywhere. */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.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;
}

.wrap {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.prose {
  max-width: var(--measure);
  margin-inline: auto;
}

/* =========================================================================
   The shared product visual language: a translated / saved word.
   ========================================================================= */

/* A system-translated word: inherited text + slate underline + faint wash. */
.tr {
  color: var(--accent);
  background: var(--accent-wash);
  border-bottom: 1px solid var(--accent-line);
  border-radius: 2px;
  padding: 0 1px;
  cursor: help;
}

/* A word you saved: 2px tan underline + tan wash + warm ink. */
.saved {
  color: var(--mark-ink);
  background: var(--mark-wash);
  border-bottom: 2px solid var(--mark-line);
  border-radius: 2px;
  padding: 0 1px;
}

/* =========================================================================
   Header
   ========================================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(244, 246, 249, 0.86);
  -webkit-backdrop-filter: saturate(1.4) blur(8px);
  backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--border);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
}

.brand:hover {
  text-decoration: none;
}

/* The eñe brand mark: rounded paper tile, slate ring + slate glyph. */
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: #f6f2ea;
  border: 1.5px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1;
  flex: none;
  box-shadow: var(--shadow-card);
}

.brand-mark span {
  transform: translateY(-0.5px);
}

.brand-name {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.pill {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  color: var(--accent-strong);
  background: var(--accent-wash);
  border: 1px solid var(--accent-line);
  padding: 5px 13px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

/* =========================================================================
   Section rhythm
   ========================================================================= */

main {
  display: block;
}

section {
  padding-block: clamp(56px, 9vw, 96px);
}

.eyebrow {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--eyebrow);
  margin-bottom: 18px;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.005em;
  line-height: 1.18;
}

.section-head {
  max-width: var(--measure);
  margin: 0 auto clamp(32px, 5vw, 48px);
}

.section-head h2 {
  font-size: clamp(26px, 3.4vw, 34px);
}

.section-head p {
  color: var(--ink-2);
  margin-top: 12px;
}

/* =========================================================================
   Hero
   ========================================================================= */

.hero {
  padding-top: clamp(48px, 8vw, 84px);
  padding-bottom: clamp(40px, 6vw, 64px);
}

/* ---- Hero headline ---- */
.hero-title {
  max-width: var(--measure);
  margin-inline: auto;
  font-family: var(--font-display);
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.hero-lede {
  max-width: var(--measure);
  margin: clamp(14px, 2vw, 20px) auto 0;
  color: var(--ink-2);
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.6;
}

/* =========================================================================
   The live dial-in self-demo
   ========================================================================= */

.dial {
  padding-top: clamp(36px, 5vw, 56px);
}

.dial-head {
  max-width: var(--measure);
  margin: 0 auto 22px;
}

.dial-head h2 {
  font-size: clamp(22px, 2.8vw, 28px);
}

.dial-head p {
  color: var(--ink-2);
  margin-top: 8px;
  font-size: 16px;
}

#ctx-live {
  position: relative; /* tooltip anchors to this, never fixed */
  max-width: var(--measure);
  margin-inline: auto;
}

.frame {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: clamp(20px, 3.5vw, 30px);
}

/* ---- the slider bar ---- */
.bar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 20px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--border);
}

.bar .lab {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--eyebrow);
  flex: none;
}

.bar .read {
  font-size: 13px;
  color: var(--ink-3);
  flex: none;
  font-variant-numeric: tabular-nums;
  min-width: 92px;
  text-align: right;
}

/* The range input — track fill set inline via JS as a linear-gradient
   (background-image). Painted into the content box so the mobile padding that
   grows the touch target to 44px keeps the visible track a thin line. */
#ctx-range {
  -webkit-appearance: none;
  appearance: none;
  flex: 1 1 auto;
  height: 6px;
  border-radius: var(--radius-pill);
  background-color: var(--border);
  background-image: linear-gradient(to right, var(--accent) 0%, var(--border) 0%);
  background-repeat: no-repeat;
  background-clip: content-box;
  cursor: pointer;
  outline-offset: 6px;
}

/* WebKit thumb: 18px white disc, 2px slate ring. */
#ctx-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #ffffff;
  border: 2px solid var(--accent);
  box-shadow: var(--shadow-card);
  cursor: pointer;
  margin-top: -6px;
}

#ctx-range::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: var(--radius-pill);
  background: transparent;
}

/* Firefox thumb + track. */
#ctx-range::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #ffffff;
  border: 2px solid var(--accent);
  box-shadow: var(--shadow-card);
  cursor: pointer;
}

#ctx-range::-moz-range-track {
  height: 6px;
  border-radius: var(--radius-pill);
  background: transparent;
}

#ctx-range::-moz-range-progress {
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--accent);
}

/* ---- the manifesto ---- */
.manifesto {
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 23px);
  line-height: 1.62;
  color: var(--ink);
}

/* A swappable word — neutral until turned on. */
.manifesto .w {
  border-radius: 2px;
  transition: color 0.18s ease, background-color 0.18s ease,
    border-color 0.18s ease;
  border-bottom: 1px solid transparent;
}

.manifesto .w.on {
  color: var(--accent);
  background: var(--accent-wash);
  border-bottom: 1px solid var(--accent-line);
  padding: 0 1px;
  cursor: help;
}

.cap {
  margin-top: 18px;
  font-size: 14px;
  font-style: italic;
  color: var(--ink-3);
}

/* ---- the tooltip ---- */
.tip {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 5;
  pointer-events: none;
  opacity: 0;
  transform: translateX(-50%);
  background: var(--ink);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-style: normal;
  line-height: 1.2;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  box-shadow: 0 6px 24px rgba(27, 39, 51, 0.16);
  transition: opacity 0.14s ease;
}

.tip::after {
  content: "";
  position: absolute;
  top: -5px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-bottom: 5px solid var(--ink);
}

/* =========================================================================
   Thesis section
   ========================================================================= */

.thesis {
  background: var(--canvas-2);
  border-block: 1px solid var(--border);
}

.beats {
  max-width: var(--measure);
  margin-inline: auto;
  display: grid;
  gap: clamp(28px, 4vw, 38px);
}

.beat h3 {
  font-size: clamp(20px, 2.4vw, 24px);
  margin-bottom: 8px;
}

.beat p {
  color: var(--ink-2);
}

/* =========================================================================
   How it works
   ========================================================================= */

.steps {
  max-width: 880px;
  margin-inline: auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 18px;
}

.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 20px;
}

.step .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: var(--radius-pill);
  background: var(--accent-wash);
  border: 1px solid var(--accent-line);
  color: var(--accent-strong);
  font-size: 13px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  margin-bottom: 12px;
}

.step p {
  font-size: 15.5px;
  color: var(--ink-2);
  line-height: 1.5;
}

.step p .tr,
.step p .saved {
  white-space: nowrap;
}

.offline-note {
  max-width: 880px;
  margin: 22px auto 0;
  font-size: 14px;
  color: var(--ink-3);
  text-align: center;
}

/* =========================================================================
   FAQ
   ========================================================================= */

.faq {
  background: var(--canvas-2);
  border-block: 1px solid var(--border);
}

.faq-list {
  max-width: var(--measure);
  margin-inline: auto;
  display: grid;
  gap: 4px;
}

.faq-list details {
  border-bottom: 1px solid var(--border);
  padding: 6px 0;
}

.faq-list summary {
  font-family: var(--font-display);
  font-size: clamp(18px, 2vw, 21px);
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  padding: 12px 36px 12px 0;
  position: relative;
}

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

.faq-list summary::after {
  content: "";
  position: absolute;
  right: 4px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--ink-3);
  border-bottom: 1.5px solid var(--ink-3);
  transform: translateY(-65%) rotate(45deg);
  transition: transform 0.2s ease;
}

.faq-list details[open] summary::after {
  transform: translateY(-35%) rotate(-135deg);
}

.faq-list .answer {
  color: var(--ink-2);
  font-size: 16px;
  padding: 0 8px 14px 0;
}

/* =========================================================================
   CTA
   ========================================================================= */

.cta {
  text-align: center;
}

.cta h2 {
  font-size: clamp(26px, 3.4vw, 34px);
  max-width: 18ch;
  margin: 0 auto 28px;
}

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

/* The "Coming soon" badge — looks like a button, is not a link. */
.badge-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: 1px solid var(--accent-strong);
  padding: 13px 22px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  cursor: not-allowed;
  position: relative;
}

.badge-btn .chrome-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.85);
  flex: none;
}

/* Subtext / tooltip shown under the badge. */
.badge-note {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  color: var(--ink-3);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--accent-strong);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  padding: 13px 22px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.btn-secondary:hover {
  text-decoration: none;
  border-color: var(--accent-line);
  background: var(--canvas-2);
}

.cta-star {
  margin-top: 22px;
  font-size: 15px;
  color: var(--ink-2);
}

/* =========================================================================
   Footer
   ========================================================================= */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--canvas-2);
  padding-block: 32px;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 22px;
}

.footer-mark {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--ink-2);
  font-size: 14px;
}

.footer-mark .brand-mark {
  width: 24px;
  height: 24px;
  font-size: 15px;
  border-radius: 6px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-left: auto;
  font-size: 14px;
}

.footer-links a {
  color: var(--ink-2);
}

.footer-links a:hover {
  color: var(--accent);
}

/* =========================================================================
   Privacy page
   ========================================================================= */

.doc {
  padding-block: clamp(48px, 8vw, 80px);
}

.doc .prose h1 {
  font-size: clamp(28px, 3.6vw, 38px);
  margin-bottom: 6px;
}

.doc .updated {
  color: var(--ink-3);
  font-size: 14px;
  font-style: italic;
  margin-bottom: 32px;
}

.doc .prose h2 {
  font-size: clamp(19px, 2.2vw, 23px);
  margin-top: 36px;
  margin-bottom: 10px;
}

.doc .prose p {
  color: var(--ink-2);
  margin-bottom: 14px;
}

.doc .prose ul {
  color: var(--ink-2);
  margin: 0 0 16px 1.2em;
}

.doc .prose li {
  margin-bottom: 6px;
}

.doc .prose strong {
  color: var(--ink);
}

.back-link {
  display: inline-block;
  margin-bottom: 28px;
  font-size: 14px;
}

/* =========================================================================
   Responsive
   ========================================================================= */

@media (max-width: 560px) {
  /* Bigger touch target for the slider on mobile: 44px row + thumb. */
  .bar {
    flex-wrap: wrap;
    gap: 10px 14px;
  }

  #ctx-range {
    order: 3;
    flex-basis: 100%;
    height: 44px;
    background-clip: content-box;
    padding-block: 19px; /* keeps a 6px visible track centered in 44px */
  }

  #ctx-range::-webkit-slider-thumb {
    margin-top: -6px;
  }

  .bar .read {
    margin-left: auto;
    min-width: 0;
  }

  .footer-links {
    margin-left: 0;
  }
}

/* =========================================================================
   Reduced motion: no smooth scroll.
   (The dial drift is disabled in JS.)
   ========================================================================= */

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

  .manifesto .w,
  .tip,
  .faq-list summary::after {
    transition: none;
  }
}