/*
 * The Fatigue App - marketing site. Light aesthetic.
 *
 * This page and both applications share one light aesthetic, so a screenshot
 * here looks like the product a visitor will actually open.
 *
 * The TRUE brand purple carries it - #5B2A86 measures 9.9:1 on white, and is
 * used exactly as supplied. See packages/shared/src/tokens.ts for the same
 * palette on the app side.
 *
 * No web fonts and no third-party requests: the page loads its own two files
 * and its own images, nothing else. Nothing to disclose in a privacy notice,
 * and an instant first paint.
 */

:root {
  --paper: #ffffff;
  --tint: #f6f4f9;
  --ink: #16232b;
  --ink-2: #4a5c68;
  --muted: #6b7c88;
  --line: #e3e0ea;
  --line-soft: #efedf3;

  --brand: #5b2a86;          /* 9.90:1 on white */
  --brand-light: #b77bf0;
  /* The soft wash used by the image placeholders and the closing CTA.
     These two stops are duplicated in images/placeholder-*.svg - change both
     together, or the CTA and the photo slots stop matching. */
  --wash-1: #efe7f7;
  --wash-2: #dde9ec;
  --petrol: #146a79;         /* 6.24:1 on white */

  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --wrap: 1140px;
  /* Photography sits flat on the page; a light lift is enough. */
  --shadow: 0 1px 2px rgb(22 35 43 / 6%), 0 12px 34px rgb(22 35 43 / 8%);

  /* Product screenshots need more. They are light images on a light page, so
     without a defined edge they float free - three layers (contact, mid,
     ambient) read as elevation rather than as a blur. */
  --shadow-screen:
    0 2px 6px rgb(22 35 43 / 9%),
    0 12px 26px rgb(22 35 43 / 11%),
    0 34px 64px rgb(22 35 43 / 17%);

  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.14; letter-spacing: -0.023em; margin: 0; }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand); }

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

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.centred { text-align: center; }
.sub { color: var(--ink-2); max-width: 60ch; margin-inline: auto; font-size: 17px; }
.note { color: var(--muted); font-size: 14px; margin-top: 24px; max-width: 52ch; }

.pull {
  border-left: 3px solid var(--brand-light);
  padding-left: 16px;
  color: var(--ink);
  font-size: 17px;
}

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--brand); color: #fff; padding: 10px 16px; font-weight: 700; z-index: 10;
}
.skip:focus { left: 12px; top: 12px; }

/* ------------------------------------------------------------------- nav */

.nav {
  position: sticky; top: 0; z-index: 5;
  background: rgb(255 255 255 / 88%);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: 64px; }
.brand {
  display: flex; align-items: center; gap: 9px;
  color: var(--ink); text-decoration: none;
  font-weight: 800; font-size: 17.5px; letter-spacing: -0.02em;
}
.nav__links { display: flex; align-items: center; gap: 24px; }
.nav__links a { color: var(--ink-2); text-decoration: none; font-size: 14.5px; }
.nav__links a:hover { color: var(--ink); }
/* `.nav__links a` outranks `.btn` on specificity, which silently turned the
   nav button's label the same colour as its background. */
.nav__links a.btn { color: #fff; }
.nav__links a.btn:hover { color: #fff; }

/* ---------------------------------------------------------------- button */

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--brand); color: #fff;
  padding: 13px 22px; border-radius: 8px;
  font-weight: 700; font-size: 15px; text-decoration: none;
  min-height: 44px;   /* same 44px floor as the apps */
  border: 1px solid transparent;
}
.btn:hover { background: #6d34a0; }
.btn--small { padding: 8px 15px; font-size: 14px; min-height: 38px; }
.btn--big { padding: 16px 30px; font-size: 16.5px; }
.btn--quiet { background: #fff; color: var(--ink); border-color: var(--line); }
.btn--quiet:hover { background: var(--tint); border-color: var(--brand-light); }

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.cta-row--centred { justify-content: center; }

/* ------------------------------------------------------------------ hero */

.hero { padding: 76px 0 68px; }
.hero__grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.hero h1 { font-size: clamp(33px, 4.6vw, 54px); font-weight: 800; }
.lede { color: var(--ink-2); font-size: clamp(16px, 1.6vw, 19px); max-width: 54ch; margin-top: 20px; }

.eyebrow {
  color: var(--brand); font-size: 12.5px; font-weight: 800;
  letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 16px;
}

.hero__figure { margin: 0; }
.hero__figure img { border-radius: 12px; box-shadow: var(--shadow); }

/* ----------------------------------------------------------------- bands */

.band { padding: 74px 0; }
.band--tint { background: var(--tint); }
.band h2 { font-size: clamp(24px, 3vw, 34px); font-weight: 800; margin-bottom: 16px; }
.band .sub { margin-bottom: 44px; }

.split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 56px; align-items: center; }
.split + .split { margin-top: 68px; }
.split__copy p { color: var(--ink-2); }
.split__figure { margin: 0; }
.split__figure img { border-radius: 10px; box-shadow: var(--shadow); }
/* Source order keeps the image first for a sensible reading order; this only
   swaps the visual columns. */
.split--reverse .split__copy { order: -1; }

/* ------------------------------------------------------------ screenshots */

.shot { margin: 0; }
.shot img {
  border-radius: 10px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-screen);
}
.shot--wide { margin-bottom: 0; }

/* The clinician block now closes the section rather than opening it, so the
   separating space belongs above it. */
.product__clinician { margin-top: 76px; }
.shot figcaption { color: var(--muted); font-size: 13.5px; text-align: center; margin-top: 14px; }
.shot--phone img {
  max-width: 300px;
  margin-inline: auto;
  border-radius: 22px;
  border: 6px solid #1b2a33;
  /* The phone reads as floating above the page, so it carries the most. */
  box-shadow:
    0 4px 10px rgb(22 35 43 / 10%),
    0 18px 34px rgb(22 35 43 / 14%),
    0 44px 76px rgb(22 35 43 / 22%);
}

/* ----------------------------------------------------------------- steps */

.steps {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px;
}
.steps li { background: var(--paper); border: 1px solid var(--line); border-radius: 10px; padding: 26px; }
.steps__n {
  display: grid; place-items: center;
  width: 32px; height: 32px; border-radius: 7px;
  background: var(--brand); color: #fff; font-weight: 800; font-size: 14.5px;
  margin-bottom: 14px;
}
.steps h3 { font-size: 17.5px; margin-bottom: 8px; }
.steps p { color: var(--ink-2); font-size: 14.5px; }

/* ----------------------------------------------------------------- scale */

.scale { list-style: none; margin: 0; padding: 0; max-width: 640px; margin-inline: auto; }
.scale li {
  display: grid; grid-template-columns: 42px 108px 1fr;
  align-items: center; gap: 14px;
  padding: 13px 0; border-bottom: 1px solid var(--line);
}
.scale li:last-child { border-bottom: 0; }
.scale__n {
  display: grid; place-items: center;
  width: 34px; height: 34px; border-radius: 7px;
  /* Colour is never the only channel - number and name are always present. */
  background: color-mix(in srgb, var(--c) 12%, #fff);
  border: 1px solid color-mix(in srgb, var(--c) 40%, #fff);
  color: var(--c); font-weight: 800;
}
.scale strong { font-size: 15.5px; }
.scale em { color: var(--muted); font-style: normal; font-size: 14.5px; }

/* ----------------------------------------------------------------- tiles */

.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.tile {
  background: var(--paper); border: 1px solid var(--line);
  border-top: 3px solid var(--brand-light);
  border-radius: 10px; padding: 24px;
}
.tile h3 { font-size: 16.5px; margin-bottom: 9px; }
.tile p { color: var(--ink-2); font-size: 14.5px; }

/* ----------------------------------------------------------------- ticks */

.ticks { list-style: none; margin: 22px 0 0; padding: 0; }
.ticks li {
  position: relative; padding-left: 28px; margin-bottom: 14px;
  color: var(--ink-2); font-size: 15px;
}
.ticks li::before {
  content: ""; position: absolute; left: 2px; top: 8px;
  width: 9px; height: 5px;
  border-left: 2.5px solid var(--brand); border-bottom: 2.5px solid var(--brand);
  transform: rotate(-45deg);
}
.ticks strong { color: var(--ink); }

/* ---------------------------------------------------------------- closer */

/* Same diagonal wash as the image placeholders, so the closing section reads
   as part of the same family rather than a flat block of tint. */
.closer { background: linear-gradient(135deg, var(--wash-1) 0%, var(--wash-2) 100%); }

/* ---------------------------------------------------------------- footer */

.foot { padding: 42px 0 60px; border-top: 1px solid var(--line-soft); }
.foot__inner { display: flex; flex-direction: column; gap: 12px; }
.foot__by { font-size: 14.5px; color: var(--ink-2); }
.foot__by a { color: var(--brand); font-weight: 600; text-decoration: none; }
.foot__small { color: var(--muted); font-size: 12.5px; max-width: 72ch; }

/* -------------------------------------------------------------- narrower */

@media (max-width: 900px) {
  .hero__grid, .split, .steps, .grid-3 { grid-template-columns: minmax(0, 1fr); gap: 34px; }
  .split--reverse .split__copy { order: 0; }
  .nav__links a:not(.btn) { display: none; }
  .hero { padding: 52px 0 46px; }
  .band { padding: 54px 0; }
  .split + .split { margin-top: 44px; }
  .product__clinician { margin-top: 48px; }
  .scale li { grid-template-columns: 42px 1fr; }
  .scale em { grid-column: 2; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}