/*
 * Quiblo — the landing page.
 *
 * Two decisions run through everything here.
 *
 * **Indigo is the ground, not the accent.** The app's own icon is white on a full plate of
 * #4A4FBF, so the site is built out of that plate rather than out of black with indigo
 * highlights on it. Even the muted text is indigo-tinted; there is no neutral grey anywhere,
 * which is what stops the page reading as a generic dark theme with a brand colour dropped in.
 *
 * **One typeface, two widths, and the width means something.** Archivo is a variable font with
 * a width axis. Headlines are set expanded — the shape of a widescreen picture — and body text
 * is set normal. It is the same family throughout, so the only thing separating a heading from
 * a paragraph is how wide the letters are, which is a joke the product is allowed to make.
 */

:root {
  /* The plate, and the shades either side of it. */
  --void: #06060e;
  --ink: #0d0d1d;
  --indigo-deep: #1d2059;
  --indigo: #4a4fbf;
  --indigo-lift: #7a7fea;

  --paper: #f4f4fa;
  /* Indigo-tinted rather than grey. Nothing on this page is neutral. */
  --mute: #a3a6d2;
  --line: rgb(122 127 234 / 18%);

  /* The one warm note on the page, and it is spent entirely on the refusal. */
  --warn: #ffb86b;

  --measure: 62ch;
  --gutter: clamp(1.25rem, 5vw, 4rem);
  --rhythm: clamp(4.5rem, 10vw, 9rem);
}

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

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

body {
  margin: 0;
  background: var(--void);
  color: var(--paper);
  font-family: Archivo, system-ui, sans-serif;
  font-variation-settings: 'wdth' 100;
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.075rem);
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; }

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 99;
  padding: 0.6rem 1rem;
  background: var(--paper);
  color: var(--void);
  border-radius: 6px;
}

:focus-visible {
  outline: 2px solid var(--indigo-lift);
  outline-offset: 3px;
}

/* --- shell --------------------------------------------------------------- */

.wrap {
  width: min(1180px, 100%);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.wrap--narrow { width: min(760px, 100%); }

/* --- navigation ---------------------------------------------------------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.85rem var(--gutter);
  background: rgb(6 6 14 / 72%);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.nav__mark {
  width: 34px;
  height: 34px;
  color: var(--indigo-lift);
  flex: none;
}

.nav__links {
  display: flex;
  gap: 1.4rem;
  margin-inline-start: auto;
  font-size: 0.9rem;
  color: var(--mute);
}
.nav__links a {
  text-decoration: none;
  padding-block: 0.2rem;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}
.nav__links a:hover { color: var(--paper); border-bottom-color: var(--indigo-lift); }

@media (max-width: 1080px) {
  .nav__links { display: none; }
  .nav__brand { margin-inline-end: auto; }
}

/* --- buttons ------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
  padding: 0.6rem 1.35rem;
  font: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--paper);
  text-decoration: none;
  background: rgb(122 127 234 / 8%);
  border: 1px solid var(--line);
  border-radius: 10px;
  transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}
.btn:hover {
  background: rgb(122 127 234 / 16%);
  border-color: var(--indigo-lift);
  transform: translateY(-1px);
}

.btn--primary {
  color: #fff;
  background: var(--indigo);
  border-color: var(--indigo);
}
.btn--primary:hover { background: var(--indigo-lift); border-color: var(--indigo-lift); }

.btn--small { min-height: 2.4rem; padding: 0.4rem 1rem; font-size: 0.88rem; flex: none; }

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

.hero {
  position: relative;
  overflow: hidden;
  /* The mark carries the top of this section now that it is sized as a logo, so the padding
     above it came down: a large mark under a deep pad reads as a headline that has slipped
     down the page rather than as a composition with air around it. */
  padding-block: clamp(2rem, 5vh, 3.5rem) var(--rhythm);
  background:
    radial-gradient(120% 90% at 50% -10%, var(--indigo-deep) 0%, transparent 62%),
    var(--void);
}

/*
 * The channel grid.
 *
 * Every cell is 16:9 — the shape of the thing being played — and they begin as empty outlines
 * and fill in, over and over. That is the product: it arrives with nothing in it and a viewer
 * supplies the catalogue. It is the only ambient animation on the page and it is allowed
 * because it is the argument rather than an ornament. Cells are written by main.js.
 */
.grid {
  position: absolute;
  inset: -6% -2% auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(84px, 1fr));
  gap: 10px;
  pointer-events: none;
}

.cell {
  aspect-ratio: 16 / 9;
  border: 1px solid rgb(122 127 234 / 16%);
  border-radius: 5px;
  background: transparent;
  transition: background 900ms ease, border-color 900ms ease;
}
.cell.is-on {
  background: rgb(74 79 191 / 42%);
  border-color: rgb(122 127 234 / 42%);
}

/* Keeps the type readable over the grid without dimming the whole picture. */
.hero__veil {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(70% 55% at 50% 46%, var(--void) 30%, rgb(6 6 14 / 72%) 58%, transparent 100%),
    linear-gradient(to bottom, transparent 55%, var(--void) 96%);
}

.hero__inner {
  position: relative;
  z-index: 1;
  width: min(1180px, 100%);
  margin-inline: auto;
  padding-inline: var(--gutter);
  text-align: center;
}

.hero__mark {
  /* The mark is the first thing on the page and it is the product's own icon, so it is sized
     to be read as a logo rather than as a bullet above the headline. */
  width: clamp(148px, 20vw, 248px);
  height: auto;
  margin-inline: auto;
  color: var(--paper);
  /* The stroke is authored at a 108-unit scale, so it thins as the mark grows. Nudged back so
     the ring keeps the weight it has in the launcher icon. */
  stroke-width: 0;
}
.hero__mark .hero__ring,
.hero__mark .hero__tail {
  stroke-width: 5.5;
}

/* The mark draws itself once, on load. See main.js for the reduced-motion path. */
.hero__ring { stroke-dasharray: 114; stroke-dashoffset: 114; }
.hero__tail { stroke-dasharray: 15; stroke-dashoffset: 15; }
.hero__play { opacity: 0; transform-origin: 55px 54px; transform: scale(0.6); }

.is-drawn .hero__ring { animation: draw 900ms cubic-bezier(0.65, 0, 0.35, 1) forwards; }
.is-drawn .hero__tail { animation: draw 320ms cubic-bezier(0.65, 0, 0.35, 1) 780ms forwards; }
.is-drawn .hero__play { animation: pop 420ms cubic-bezier(0.34, 1.4, 0.64, 1) 620ms forwards; }

@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes pop { to { opacity: 1; transform: scale(1); } }

.eyebrow {
  margin: 2rem 0 0;
  /* Except directly under the hero mark, where 2rem plus the mark's own optical margin opened
     a gap wide enough to read as two separate blocks. */

  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
}
.hero__mark + .eyebrow { margin-top: 0.9rem; }
.eyebrow--warn { color: var(--warn); }

/*
 * Headlines are set expanded, body text is not. One family, two widths — and the wide one is
 * reserved for the largest type, because the product is about a widescreen picture.
 */
.hero__title {
  margin: 0.9rem 0 0;
  font-variation-settings: 'wdth' 118;
  font-weight: 800;
  font-size: clamp(2.5rem, 1.2rem + 5.6vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
}
.hero__title em {
  display: inline-block;
  font-style: normal;
  color: var(--indigo-lift);
}

.hero__lede {
  max-width: var(--measure);
  margin: 1.5rem auto 0;
  color: var(--mute);
  font-size: 1.08rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 2.1rem;
}

/* --- the four facts ------------------------------------------------------ */

/*
 * A definition list, not a stat row. These are answers to questions people actually ask
 * before installing something, and the last one is the joke that carries the whole position.
 */
.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  max-width: 860px;
  margin: 3.5rem auto 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
.facts__item {
  padding: 1.1rem 1rem;
  background: var(--void);
}
.facts dt {
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 0.68rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--mute);
}
.facts dd {
  margin: 0.4rem 0 0;
  font-variation-settings: 'wdth' 112;
  font-weight: 700;
  font-size: 1.02rem;
}

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

.band { padding-block: var(--rhythm); }
.band--alt { background: var(--ink); }

.h2 {
  margin: 0.7rem 0 0;
  font-variation-settings: 'wdth' 115;
  font-weight: 800;
  font-size: clamp(1.9rem, 1.2rem + 2.4vw, 3.1rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
}

.lede {
  max-width: var(--measure);
  margin: 1.3rem 0 0;
  color: var(--mute);
  font-size: 1.06rem;
}

/* --- format chips -------------------------------------------------------- */

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}
.chips li {
  padding: 0.36rem 0.8rem;
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 0.8rem;
  color: var(--mute);
  border: 1px solid var(--line);
  border-radius: 999px;
}

/* --- three columns ------------------------------------------------------- */

.cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem 2.5rem;
  margin-top: 3.2rem;
}
.col h3 {
  margin: 0 0 0.5rem;
  font-variation-settings: 'wdth' 108;
  font-size: 1.12rem;
  font-weight: 700;
}
.col p { margin: 0; color: var(--mute); }

/* --- the two apps -------------------------------------------------------- */

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-top: 3rem;
}

.panel {
  padding: 1.9rem 1.7rem;
  background: var(--void);
  border: 1px solid var(--line);
  border-radius: 16px;
}
/* The television build gets the plate, because that is the screen it lives on. */
.panel--tv {
  background: linear-gradient(160deg, var(--indigo-deep), var(--void) 78%);
  border-color: rgb(122 127 234 / 34%);
}

.panel__tag {
  margin: 0;
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
}
.panel h3 {
  margin: 0.5rem 0 1.1rem;
  font-variation-settings: 'wdth' 112;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.panel ul { margin: 0; padding-inline-start: 1.1rem; color: var(--mute); }
.panel li { margin-block: 0.45rem; }

/* --- the boundary -------------------------------------------------------- */

/*
 * The page's one inversion. Everywhere else is the product; this is its edge, so it is the one
 * section that drops the plate and sits on the deepest ground with a warm rule across the top.
 */
.boundary {
  padding-block: var(--rhythm);
  background: var(--void);
  border-block: 1px solid rgb(255 184 107 / 26%);
}
.boundary__title {
  margin: 0.7rem 0 0;
  font-variation-settings: 'wdth' 120;
  font-weight: 900;
  font-size: clamp(2rem, 1.1rem + 3.6vw, 4rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
}
.boundary__body {
  max-width: var(--measure);
  margin: 1.4rem 0 0;
  font-size: 1.08rem;
  color: var(--paper);
}
.boundary__note {
  max-width: var(--measure);
  margin: 1.8rem 0 0;
  padding-inline-start: 1rem;
  border-inline-start: 2px solid var(--warn);
  color: var(--mute);
}

/* --- the ledger ---------------------------------------------------------- */

/*
 * Not numbered. These are four independent faults, not a sequence, and numbering them would
 * imply an order that does not exist. The label is the subject of each one instead.
 */
.ledger {
  margin: 2.6rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.ledger li {
  display: grid;
  grid-template-columns: minmax(150px, 220px) 1fr;
  gap: 0.5rem 2rem;
  padding-block: 1.35rem;
  border-bottom: 1px solid var(--line);
}
.ledger__n {
  font-variation-settings: 'wdth' 112;
  font-weight: 700;
  color: var(--indigo-lift);
}
.ledger__t { color: var(--mute); }

@media (max-width: 640px) {
  .ledger li { grid-template-columns: 1fr; }
}

.pull {
  max-width: 26ch;
  margin: 3rem 0;
  padding: 0;
  font-variation-settings: 'wdth' 116;
  font-weight: 700;
  font-size: clamp(1.4rem, 1rem + 1.8vw, 2.3rem);
  line-height: 1.16;
  letter-spacing: -0.025em;
  color: var(--paper);
}

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

.foot {
  padding-block: 3.5rem;
  background: var(--ink);
  border-top: 1px solid var(--line);
}
.foot__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  align-items: start;
  justify-content: space-between;
}
.foot__brand { display: flex; gap: 0.8rem; align-items: start; }
.foot__brand p { margin: 0; color: var(--mute); font-size: 0.9rem; }
.foot__links { display: grid; gap: 0.5rem; font-size: 0.92rem; }
.foot__links a { color: var(--mute); text-decoration: none; }
.foot__links a:hover { color: var(--paper); }

/* --- scroll reveal ------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 640ms ease, transform 640ms cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .cell { transition: none; }
  .is-drawn .hero__ring,
  .is-drawn .hero__tail,
  .is-drawn .hero__play { animation: none; }
  .hero__ring, .hero__tail { stroke-dashoffset: 0; }
  .hero__play { opacity: 1; transform: none; }
  .btn:hover { transform: none; }
}