/* Sidis coming-soon landing page — apex domain only.
   Forced light: this stylesheet never sets [data-theme="dark"]. The rail
   below is a self-contained dark panel built from base-ramp tokens
   (--cobalt-900, --ink-dark, --mint-400, ...), which are NOT swapped by
   [data-theme="dark"] — only the --color-* semantic aliases are. */

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--color-bg);
  color: var(--color-ink);
  font: var(--type-body) var(--font-sans);
}

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

/* ---- Page grid ----
   Mobile: single column, source order drives layout, `order` re-sequences.
   Desktop: two columns; `.rail-wrapper` collapses to one sticky dark column
   via display:contents on mobile (its children become direct grid items,
   free to interleave with the light sections) and a real flex box on desktop. */

.page {
  display: grid;
  grid-template-columns: 1fr;
}

.rail-wrapper {
  display: contents;
}

.brand-band   { order: 1; }
.hero         { order: 2; }
.pillars-band { order: 3; }
.why          { order: 4; }
.how          { order: 5; }
.example      { order: 6; }
.pilot-band   { order: 7; }
.closing      { order: 8; }
.rail-footer  { order: 9; }

@media (min-width: 900px) {
  .page {
    grid-template-columns: 340px 1fr;
    align-items: start;
  }

  .rail-wrapper {
    display: flex;
    flex-direction: column;
    grid-column: 1;
    grid-row: 1 / -1;
    position: sticky;
    top: 0;
    min-height: 100vh;
    background: var(--cobalt-900);
  }

  .brand-band, .pillars-band, .pilot-band, .rail-footer {
    order: 0; /* natural DOM order inside the flex column */
  }

  .rail-footer {
    margin-top: auto;
  }

  .hero, .why, .how, .example, .closing {
    grid-column: 2;
  }
  .hero    { order: 1; }
  .why     { order: 2; }
  .how     { order: 3; }
  .example { order: 4; }
  .closing { order: 5; }
}

/* ---- Rail (always dark, base-ramp tokens only) ---- */

.brand-band,
.pillars-band,
.pilot-band,
.rail-footer {
  background: var(--cobalt-900);
  padding: var(--space-6) var(--mobile-gutter);
}

.brand-band {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
}

.rail-wordmark {
  height: 22px;
  width: auto;
}

.rail-eyebrow {
  font: var(--type-eyebrow);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--mint-300);
  margin: 0;
}

.pillars-band {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}

.pillars {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.pillar-rule {
  display: block;
  width: 28px;
  height: 3px;
  border-radius: 2px;
  background: var(--mint-400);
  margin-bottom: var(--space-2);
}

.pillar-name {
  font: var(--type-h3);
  color: var(--ink-dark);
  margin: 0 0 var(--space-2);
}

.pillar-desc {
  font: var(--type-body);
  color: var(--ink-dark-secondary);
  margin: 0;
}

.pilot-band {
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
  border-top: 1px solid var(--cobalt-border);
}

.pilot-band .rail-eyebrow {
  margin-bottom: var(--space-2);
}

.pilot-copy {
  font: var(--type-body);
  color: var(--ink-dark-secondary);
  margin: 0;
}

.rail-footer {
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
  border-top: 1px solid var(--cobalt-border);
}

.rail-domain {
  font: var(--type-data);
  color: var(--ink-dark);
  margin: 0 0 var(--space-1);
}

.rail-tagline {
  font: var(--type-small);
  color: var(--mint-300);
  margin: 0;
}

/* ---- Shared section rhythm (light content column) ---- */

.hero, .why, .how, .example, .closing {
  padding: var(--space-8) var(--mobile-gutter);
}

@media (min-width: 900px) {
  .hero, .why, .how, .example, .closing {
    padding: var(--space-24) var(--space-8);
    max-width: 720px;
  }
}

.why h2, .how h2 {
  font: var(--type-h2);
  font-family: var(--font-display);
  color: var(--color-ink);
  margin: 0 0 var(--space-6);
}

/* ---- Hero ---- */

.hero {
  display: flex;
  flex-direction: column;
}

.eyebrow {
  font: var(--type-eyebrow);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  margin: 0 0 var(--space-3);
}

.eyebrow-cobalt {
  color: var(--cobalt-600);
}

.hero-headline {
  font-family: var(--font-display);
  font-weight: var(--font-weight-bold);
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.15;
  color: var(--color-ink);
  margin: 0 0 var(--space-4);
}

.hero-lede {
  font: var(--type-body-lg);
  color: var(--color-text-secondary);
  max-width: var(--measure-hero);
  margin: 0 0 var(--space-6);
}

.signup-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 420px;
}

.email-field {
  width: 100%;
  min-height: 44px;
  height: var(--field-h-touch);
  padding: 0 var(--space-4);
  font: var(--type-body);
  color: var(--color-ink);
  background: var(--color-surface);
  border: var(--border-hairline-strong);
  border-radius: var(--radius-md);
}

.email-field:focus {
  outline: none;
}

.email-field:focus-visible {
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring);
}

.email-field[aria-invalid="true"] {
  border-color: var(--color-danger);
}

.submit-button {
  width: 100%;
  min-height: 48px;
  height: var(--control-h-touch);
  border: none;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: var(--color-text-on-primary);
  font: var(--type-button-touch);
  cursor: pointer;
}

.submit-button:hover {
  background: var(--color-primary-hover);
}

.submit-button:focus {
  outline: none;
}

.submit-button:focus-visible {
  box-shadow: var(--focus-ring);
}

.submit-button:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.form-error {
  font: var(--type-small);
  color: var(--color-danger);
  margin: 0;
  text-align: left;
}

.success-message {
  font: var(--type-body);
  color: var(--color-ink);
  margin: 0;
}

/* Honeypot — off-screen, not display:none, so bots that fill every field
   still trip it, while real screen reader users are told to skip it. */
.hp-field {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---- Why hotels sign on ---- */

.bullet-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5) var(--space-8);
}

@media (min-width: 700px) {
  .bullet-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.bullet-grid li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.bullet-mark {
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  margin-top: 7px;
  border-radius: 2px;
  background: var(--mint-400);
}

.bullet-grid p {
  font: var(--type-body);
  color: var(--color-text-secondary);
  margin: 0;
}

.bullet-grid strong {
  color: var(--color-ink);
  font-weight: var(--font-weight-semibold);
}

/* ---- How it works ---- */

.steps-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 700px) {
  .steps-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.step-index {
  display: block;
  font: var(--type-data);
  font-weight: var(--font-weight-medium);
  color: var(--color-beacon);
  margin: 0 0 var(--space-2);
}

.step-name {
  font: var(--type-h3);
  color: var(--color-ink);
  margin: 0 0 var(--space-1);
}

.step-desc {
  font: var(--type-body);
  color: var(--color-text-secondary);
  margin: 0;
}

/* ---- Example recommendation (the page's one beacon moment) ---- */

.example-card {
  position: relative;
  background: var(--color-beacon-tint);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.example-beacon {
  position: absolute;
  top: var(--space-5);
  right: var(--space-5);
  width: 40px;
  height: 40px;
}

.example-card .eyebrow-cobalt {
  color: var(--color-beacon-ink);
  padding-right: var(--space-12);
}

.example-body {
  font: var(--type-body-lg);
  color: var(--color-beacon-ink);
  margin: 0 0 var(--space-4);
  max-width: var(--measure-hero);
}

.figure {
  font-family: var(--font-mono);
  font-weight: var(--font-weight-medium);
  font-variant-numeric: var(--numeric-tabular);
}

.example-caption {
  font: var(--type-small);
  font-style: italic;
  color: var(--color-text-muted);
  margin: 0;
}

/* ---- Closing ---- */

.closing-lead {
  font: var(--type-h2);
  font-family: var(--font-display);
  color: var(--color-ink);
  margin: 0 0 var(--space-2);
}

.closing-sub {
  font: var(--type-body);
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-6);
}

.cta-button {
  display: inline-block;
  min-height: 48px;
  padding: 0 var(--space-6);
  border: none;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: var(--color-text-on-primary);
  font: var(--type-button-touch);
  cursor: pointer;
}

.cta-button:hover {
  background: var(--color-primary-hover);
}

.cta-button:focus {
  outline: none;
}

.cta-button:focus-visible {
  box-shadow: var(--focus-ring);
}