/* Indra public site — "Minimal Mountain Air" (docs/design-guidelines.md).
   Standalone: the app's tokens.css is a build artifact of web/, and these
   pages must render from a CDN with no build step. Token names and values
   are kept identical to web/src/tokens.css so the two stay comparable by
   diff; only the roles a marketing/legal page actually needs are carried. */

@font-face {
  font-family: 'Michroma';
  src: url('/fonts/Michroma-Regular.ttf') format('truetype');
  font-weight: 400;
  font-display: swap;
}

:root {
  /* cyanometer scale */
  --c0: #F7FAFC; --c3: #E8F0F6; --c12: #C2D3DF; --c22: #8FA6B8;
  --c30: #5C7183; --c38: #1B2C40; --c47: #0B1523; --c52: #050A12;
  /* signal — one per screen, never weather */
  --signal: #C94E04; --signal-hover: #E35A05;
  --alert: #D64545;
  /* blue hour, zenith → horizon: ambient only, never behind text */
  --sky: linear-gradient(180deg, #02040A, #060F1E, #0E2440, #234A74, #56769E, #8FA9C7);

  --r-chip: 6px; --r-control: 10px; --r-card: 14px;
  --t-state: 150ms ease-out;

  /* High Alpine Morning (light) roles */
  --paper: var(--c0);
  --card: #FFFFFF;
  --ink: var(--c47);
  --ink-strong: var(--c52);
  --ink-secondary: var(--c30);
  --ink-tertiary: var(--c22);
  --hairline: rgba(143, 166, 184, .32);
  --hairline-soft: rgba(143, 166, 184, .16);

  --font-display: 'Michroma', sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* Blue Hour (dark). Same ramp, same accent — only the roles swap. */
@media (prefers-color-scheme: dark) {
  :root {
    --paper: var(--c52);
    --card: var(--c47);
    --ink: var(--c3);
    --ink-strong: #FFFFFF;
    --ink-secondary: var(--c22);
    --ink-tertiary: var(--c30);
    --hairline: rgba(143, 166, 184, .22);
    --hairline-soft: rgba(143, 166, 184, .12);
    --signal: #E35A05; --signal-hover: #F26A12;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ---- type ---- */

.display {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: .14em;
  line-height: 1.3;
  color: var(--ink-strong);
}

.eyebrow {
  font-family: var(--font-display);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .18em;
  color: var(--ink-secondary);
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
}

a { color: var(--signal); text-decoration: none; }
a:hover { color: var(--signal-hover); text-decoration: underline; }

/* ---- chrome ---- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 28px;
  border-bottom: 1px solid var(--hairline-soft);
  flex-wrap: wrap;
}

.brand {
  font-family: var(--font-display);
  font-size: 19px;
  text-transform: uppercase;
  letter-spacing: .18em;
  color: var(--ink-strong);
}
.brand:hover { color: var(--ink-strong); text-decoration: none; }

.nav { display: flex; align-items: center; gap: 22px; }
.nav a { color: var(--ink-secondary); }
.nav a:hover { color: var(--ink); text-decoration: none; }

footer {
  border-top: 1px solid var(--hairline-soft);
  margin-top: 72px;
  padding: 28px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--ink-secondary);
  font-size: 13.5px;
}
footer .nav { gap: 18px; }

/* ---- layout ---- */

.wrap { max-width: 940px; margin: 0 auto; padding: 0 28px; }
.prose { max-width: 720px; margin: 0 auto; padding: 0 28px; }

/* ---- hero: the one place the blue hour gradient is allowed ---- */

.hero {
  background: var(--sky);
  color: #E8F0F6;
  padding: 96px 28px 104px;
  text-align: center;
}
.hero h1 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: .1em;
  font-size: clamp(26px, 5vw, 44px);
  line-height: 1.25;
  margin: 0 auto 22px;
  max-width: 16ch;
  color: #FFFFFF;
}
.hero p {
  max-width: 54ch;
  margin: 0 auto;
  font-size: clamp(16px, 2vw, 18.5px);
  color: #C2D3DF;
}
.hero .eyebrow { color: #8FA6B8; display: block; margin-bottom: 20px; }

.btn {
  display: inline-block;
  margin-top: 34px;
  background: #E35A05;
  color: #FFFFFF;
  border-radius: var(--r-control);
  padding: 12px 26px;
  font-weight: 600;
  font-size: 15px;
  transition: background var(--t-state);
}
.btn:hover { background: #C94E04; color: #FFF; text-decoration: none; }

/* ---- sections ---- */

section { padding-top: 64px; }
h2 {
  font-family: var(--font-display);
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--ink-strong);
  margin: 0 0 8px;
}
h3 {
  font-size: 16px;
  font-weight: 650;
  color: var(--ink-strong);
  margin: 28px 0 6px;
}
.lede { color: var(--ink-secondary); margin: 0 0 28px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.card {
  background: var(--card);
  border: 1px solid var(--hairline-soft);
  border-radius: var(--r-card);
  box-shadow: 0 1px 2px rgba(11, 21, 35, .05);
  padding: 22px 24px;
}
.card h3 { margin-top: 0; }
.card p { margin: 0; color: var(--ink-secondary); font-size: 14.5px; }

/* A transcript of real messages — this is what the service actually sends,
   and A2P reviewers look for exactly this on the public site. */
.transcript {
  border: 1px solid var(--hairline-soft);
  border-radius: var(--r-card);
  background: var(--card);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.msg {
  border-radius: var(--r-control);
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.55;
  word-break: break-word;
  max-width: 88%;
}
.msg.out {
  align-self: flex-end;
  background: rgba(143, 166, 184, .14);
  color: var(--ink);
}
.msg.in {
  align-self: flex-start;
  background: rgba(143, 166, 184, .07);
  border: 1px solid var(--hairline-soft);
  color: var(--ink);
}
.msg .who {
  display: block;
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-tertiary);
  margin-bottom: 5px;
}

.callout {
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--alert);
  border-radius: var(--r-control);
  padding: 16px 20px;
  margin: 28px 0;
  background: var(--card);
}
.callout p { margin: 0; font-size: 14.5px; }
.callout strong { color: var(--ink-strong); }

/* ---- legal documents ---- */

.doc { padding-top: 56px; }
.doc h1 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: .1em;
  font-size: clamp(21px, 3.6vw, 28px);
  line-height: 1.3;
  color: var(--ink-strong);
  margin: 0 0 10px;
}
.doc .meta {
  color: var(--ink-secondary);
  font-size: 13.5px;
  margin: 0 0 8px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--hairline-soft);
}
.doc h2 {
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 650;
  letter-spacing: 0;
  text-transform: none;
  margin: 44px 0 10px;
  padding-top: 4px;
}
.doc h3 { font-size: 15.5px; margin: 26px 0 4px; }
.doc p, .doc li { font-size: 15.5px; }
.doc ul { padding-left: 22px; }
.doc li { margin-bottom: 7px; }
.doc table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  font-size: 14.5px;
}
.doc th, .doc td {
  text-align: left;
  vertical-align: top;
  padding: 10px 12px;
  border-bottom: 1px solid var(--hairline-soft);
}
.doc th {
  font-family: var(--font-display);
  font-size: 9.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-secondary);
  font-weight: 400;
}
.table-scroll { overflow-x: auto; }

.toc {
  background: var(--card);
  border: 1px solid var(--hairline-soft);
  border-radius: var(--r-card);
  padding: 20px 24px;
  margin: 32px 0 8px;
}
.toc ol { margin: 0; padding-left: 20px; font-size: 14.5px; }
.toc li { margin-bottom: 4px; }

/* A faithful rendering of the in-app consent screen, for /opt-in. Carrier
   reviewers cannot sign in to see it: the app is a single-page app behind a
   login, so its HTML carries no consent text at all. This reproduces the
   card — same copy, same order, same emphasis — on a public URL. */
.screen {
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  overflow: hidden;
  margin: 22px 0 8px;
  background: var(--card);
}
.screen-label {
  padding: 9px 16px;
  border-bottom: 1px solid var(--hairline-soft);
  background: rgba(143, 166, 184, .10);
  color: var(--ink-secondary);
}
.screen-body { padding: 20px 22px; }
.screen-secondary {
  font-size: 13.5px;
  color: var(--ink-secondary);
  margin: 8px 0;
}
.screen-btn {
  display: inline-block;
  border: 1px solid var(--hairline);
  border-radius: var(--r-control);
  padding: 9px 16px;
  font-size: 14.5px;
  color: var(--ink);
  margin: 6px 0 2px;
}
.screen-consent {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--hairline-soft);
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--ink-secondary);
}
.screen-consent .mono { font-size: 11.5px; }
.screen-consent a { color: var(--ink); text-decoration: underline; }

/* Postal contact block. Set apart from the email lines so the entity and
   address read as the formal notice address they are. */
.postal {
  font-style: normal;
  line-height: 1.5;
  color: var(--ink-secondary);
  border-left: 2px solid var(--hairline);
  padding-left: 14px;
  margin-top: 14px;
}

/* Placeholders the operator must fill before these pages are final. */
.todo {
  background: rgba(227, 90, 5, .13);
  border-bottom: 1px dashed var(--signal);
  padding: 0 4px;
  border-radius: var(--r-chip);
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

@media (max-width: 600px) {
  .topbar { padding: 16px 20px; }
  .hero { padding: 68px 20px 76px; }
  .wrap, .prose { padding: 0 20px; }
  .msg { max-width: 96%; }
  footer { padding: 24px 20px; }
}