/*
 * Quirk website (/quirk, /quirk/puzzles, /quirk/privacy, /quirk/support).
 * Tokens follow the app: docs/02-experience/design-tokens.json in the Quirk repo (brand/palette.json).
 * Fraunces and Manrope are the app's own fonts (SIL OFL 1.1, see ../fonts/OFL-*.txt).
 * Controlled Oddity: calm neutrals, puzzle colours from the icons, and one violet tile that is a little out of line.
 */

@font-face {
  font-family: "Fraunces";
  src: url("/quirk-app/fonts/fraunces.woff2") format("woff2");
  font-weight: 500 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Manrope";
  src: url("/quirk-app/fonts/manrope.woff2") format("woff2");
  font-weight: 400 800;
  font-style: normal;
  font-display: swap;
}

:root {
  --q-canvas: #F4F1EA;
  --q-canvas-deep: #EAE5DA;
  --q-surface: #FFFFFF;
  --q-surface-muted: #F0ECE4;
  --q-text: #17181C;
  --q-text-2: #555862;
  --q-border: #D8D4CA;
  --q-brand: #A287FF;
  --q-brand-fg: #6A4CE0;
  --q-brand-tint: #ECE6FF;
  --q-on-brand: #17181C;
  --q-ink: #17181C;
  --q-inverse: #F7F5EF;
  --q-tile: #FBF9F4;
  --q-grid: rgb(23 24 28 / 0.05);
  --q-glow: rgb(162 135 255 / 0.32);
  --q-header-bg: rgb(244 241 234 / 0.86);
  --q-shadow-raised: 0 6px 18px rgb(43 36 64 / 0.1);
  --q-shadow-float: 0 12px 28px rgb(43 36 64 / 0.16);
  --q-shadow-brand: 0 6px 16px rgb(106 76 224 / 0.38);
  --q-logo-ink: #17181C;
  --q-logo-twist-stroke: #17181C;
  --q-font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --q-font-ui: "Manrope", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --q-radius-card: 22px;
  --q-radius-button: 18px;
  --q-header-h: 68px;
  --q-gutter: clamp(16px, 4vw, 32px);
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --q-canvas: #121316;
    --q-canvas-deep: #0C0D10;
    --q-surface: #1B1D21;
    --q-surface-muted: #25272D;
    --q-text: #F7F5EF;
    --q-text-2: #BBBCC5;
    --q-border: #303238;
    --q-brand-fg: #B6A1FF;
    --q-brand-tint: #29233F;
    --q-tile: #ECE7DC;
    --q-grid: rgb(247 245 239 / 0.04);
    --q-glow: rgb(162 135 255 / 0.2);
    --q-header-bg: rgb(18 19 22 / 0.84);
    --q-shadow-raised: 0 6px 18px rgb(0 0 0 / 0.45);
    --q-shadow-float: 0 12px 28px rgb(0 0 0 / 0.55);
    --q-shadow-brand: 0 6px 16px rgb(0 0 0 / 0.45);
    --q-logo-ink: #F7F5EF;
    --q-logo-twist-stroke: transparent;
  }
}

/* Base */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--q-header-h) + 16px);
  background: var(--q-canvas);
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--q-canvas);
  color: var(--q-text);
  font-family: var(--q-font-ui);
  font-size: 1.0625rem;
  line-height: 1.6;
  font-feature-settings: "kern", "liga", "calt";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

img {
  height: auto;
}

a {
  color: inherit;
}

h1,
h2,
h3 {
  margin: 0;
}

p {
  margin: 0;
}

::selection {
  background: var(--q-brand-tint);
  color: var(--q-text);
}

:focus-visible {
  outline: 3px solid var(--q-brand-fg);
  outline-offset: 3px;
  border-radius: 6px;
}

.q-shell {
  width: 100%;
  max-width: calc(1180px + 2 * var(--q-gutter));
  margin: 0 auto;
  padding: 0 var(--q-gutter);
}

.q-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.q-skip {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.65rem 1rem;
  border-radius: 12px;
  background: var(--q-ink);
  color: var(--q-inverse);
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-200%);
}

.q-skip:focus {
  transform: none;
}

.q-icon {
  width: 1.25em;
  height: 1.25em;
  flex-shrink: 0;
}

/* Logo (official geometry from the brand kit, coloured here). */

.q-logo {
  width: auto;
  height: 30px;
}

.q-logo-ink {
  fill: var(--q-logo-ink);
}

.q-logo-twist {
  fill: #A287FF;
  stroke: var(--q-logo-twist-stroke);
  stroke-width: 1.8;
}

.q-mark {
  width: 100%;
  height: auto;
}

/* Type */

.q-display {
  font-family: var(--q-font-display);
  font-weight: 700;
  font-size: clamp(2.75rem, 6.4vw, 5.25rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.q-display--page {
  font-size: clamp(2.4rem, 5vw, 4rem);
}

.q-display--final {
  font-size: clamp(2.3rem, 5vw, 4.2rem);
}

.q-title {
  font-family: var(--q-font-display);
  font-weight: 700;
  font-size: clamp(2rem, 3.8vw, 3.1rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin-bottom: 1rem;
  text-wrap: balance;
}

.q-eyebrow {
  margin: 0 0 0.85rem;
  color: var(--q-brand-fg);
  font-family: var(--q-font-ui);
  font-size: 0.78rem;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.q-lead {
  max-width: 40rem;
  color: var(--q-text-2);
  font-size: clamp(1.08rem, 1.5vw, 1.22rem);
  line-height: 1.6;
  text-wrap: pretty;
}

.q-lead a,
.q-faq a,
.q-footer-bottom a {
  color: var(--q-brand-fg);
  font-weight: 700;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
}

.q-muted {
  color: var(--q-text-2);
}

.q-small {
  margin-top: 1rem;
  font-size: 0.92rem;
}

.q-center {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: clamp(2rem, 4vw, 3rem);
  text-align: center;
}

/* Pills, buttons and store buttons */

.q-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 1.5rem;
  padding: 0.45rem 0.95rem 0.45rem 0.7rem;
  border: 1px solid var(--q-border);
  border-radius: 999px;
  background: var(--q-surface);
  color: var(--q-text);
  font-size: 0.88rem;
  font-weight: 700;
  box-shadow: var(--q-shadow-raised);
}

.q-pill .q-icon {
  color: var(--q-brand-fg);
}

.q-pill--quiet {
  margin: 1.5rem 0 0;
  box-shadow: none;
}

.q-pill-dot {
  width: 12px;
  height: 12px;
  border-radius: 4px;
  background: var(--q-brand);
  transform: translate(1px, 2px);
}

.q-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 52px;
  padding: 0 1.4rem;
  border: 0;
  border-radius: var(--q-radius-button);
  background: var(--q-brand);
  color: var(--q-on-brand);
  font: 750 1rem/1.2 var(--q-font-ui);
  text-decoration: none;
  box-shadow: var(--q-shadow-brand);
  transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

.q-button:hover {
  transform: translateY(-2px);
}

.q-button .q-icon {
  width: 1.2em;
  height: 1.2em;
}

.q-button--small {
  min-height: 42px;
  padding: 0 1rem;
  font-size: 0.93rem;
  border-radius: 14px;
}

.q-button--small .q-icon {
  width: 0.95em;
  height: 0.95em;
  fill: currentColor;
}

.q-button--ghost {
  border: 1.5px solid var(--q-border);
  background: var(--q-surface);
  color: var(--q-text);
  box-shadow: none;
}

.q-button--ghost:hover {
  border-color: var(--q-brand);
}

.q-button--ghost .q-icon {
  color: var(--q-brand-fg);
}

.q-link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--q-brand-fg);
  font-weight: 800;
  text-decoration: none;
}

.q-link-arrow .q-icon {
  transition: transform 0.18s ease;
}

.q-link-arrow:hover .q-icon {
  transform: translateX(4px);
}

.q-stores {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.q-stores--center {
  justify-content: center;
}

.q-store {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  min-height: 60px;
  padding: 0.55rem 1.4rem 0.55rem 1.1rem;
  border-radius: var(--q-radius-button);
  font-weight: 800;
  font-size: 1.08rem;
  line-height: 1.15;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.q-store small {
  display: block;
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.02em;
  opacity: 0.82;
}

.q-store-glyph {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.q-store--play {
  background: var(--q-brand);
  color: var(--q-on-brand);
  box-shadow: var(--q-shadow-brand);
}

.q-store--apple {
  background: var(--q-ink);
  color: var(--q-inverse);
}

a.q-store:hover {
  transform: translateY(-2px);
}

.q-store--soon {
  border: 1.5px dashed var(--q-border);
  color: var(--q-text-2);
  font-size: 0.95rem;
}

.q-store--soon .q-store-glyph {
  fill: none;
  stroke: currentColor;
  stroke-width: 3;
}

@media (prefers-color-scheme: dark) {
  .q-store--apple {
    background: var(--q-inverse);
    color: var(--q-ink);
  }
}

/* Header */

.q-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid color-mix(in srgb, var(--q-border) 70%, transparent);
  background: var(--q-header-bg);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  backdrop-filter: saturate(1.4) blur(14px);
}

.q-header-bar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: var(--q-header-h);
}

.q-header-logo {
  display: inline-flex;
  padding: 0.25rem 0;
  border-radius: 8px;
}

.q-header-logo .q-logo {
  height: 28px;
}

.q-nav {
  display: flex;
  gap: 0.25rem;
  margin-left: auto;
}

.q-nav a {
  padding: 0.5rem 0.85rem;
  border-radius: 12px;
  color: var(--q-text-2);
  font-size: 0.97rem;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.q-nav a:hover,
.q-nav a[aria-current="page"] {
  background: var(--q-surface);
  color: var(--q-text);
}

.q-nav a[aria-current="page"] {
  box-shadow: inset 0 -2px 0 var(--q-brand);
}

/* Hero */

.q-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(3rem, 8vw, 6.5rem) 0 clamp(3.5rem, 8vw, 6.5rem);
  background-image:
    linear-gradient(var(--q-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--q-grid) 1px, transparent 1px);
  background-size: 34px 34px;
  background-position: center top;
}

.q-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 120px;
  background: linear-gradient(transparent, var(--q-canvas));
  pointer-events: none;
}

.q-hero > .q-shell {
  position: relative;
  z-index: 1;
}

.q-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
}

.q-hero-copy .q-lead {
  margin-top: 1.5rem;
}

.q-twist-word {
  position: relative;
  display: inline-block;
}

.q-twist-word::after {
  content: "";
  position: absolute;
  right: -0.42em;
  bottom: 0.08em;
  width: 0.3em;
  height: 0.3em;
  border-radius: 0.07em;
  background: var(--q-brand);
  box-shadow: inset 0 0 0 0.025em var(--q-logo-twist-stroke);
  transform: translate(0.05em, 0.06em);
}

.q-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.4rem;
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
  color: var(--q-text-2);
  font-size: 0.95rem;
  font-weight: 700;
}

.q-facts li {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.q-facts .q-icon {
  color: var(--q-brand-fg);
}

.q-hero-stage {
  position: relative;
  min-height: 600px;
}

.q-hero-glow {
  position: absolute;
  inset: 8% 4% 4%;
  border-radius: 50%;
  background: radial-gradient(closest-side, var(--q-glow), transparent);
  filter: blur(8px);
}

.q-phone {
  margin: 0;
  padding: 7px;
  border-radius: 38px;
  background: #17181C;
  box-shadow: var(--q-shadow-float), inset 0 0 0 1.5px #3A3D45;
}

.q-phone img {
  width: 100%;
  border-radius: 31px;
}

.q-hero-stage .q-phone {
  position: absolute;
}

.q-phone--front {
  z-index: 2;
  top: 2%;
  right: 6%;
  width: min(300px, 58%);
  transform: rotate(4deg);
}

.q-phone--back {
  z-index: 1;
  top: 13%;
  left: 2%;
  width: min(260px, 50%);
  transform: rotate(-7deg);
}

.q-float {
  position: absolute;
  z-index: 3;
  display: grid;
  place-items: center;
  width: 66px;
  aspect-ratio: 1;
  border-radius: 18px;
  background: var(--q-tile);
  box-shadow: var(--q-shadow-float), inset 0 0 0 1px rgb(23 24 28 / 0.06);
  animation: q-bob 7s ease-in-out infinite alternate;
}

.q-float img {
  width: 76%;
}

.q-float--1 { top: 0; left: 18%; animation-delay: -1s; }
.q-float--2 { top: 42%; left: -2%; width: 58px; animation-delay: -3s; }
.q-float--3 { bottom: 6%; left: 26%; animation-delay: -5s; }
.q-float--4 { top: 30%; right: -2%; width: 60px; animation-delay: -2s; }
.q-float--5 { bottom: 0; right: 14%; width: 54px; animation-delay: -4s; }

@keyframes q-bob {
  from { transform: translateY(-6px) rotate(-3deg); }
  to { transform: translateY(8px) rotate(3deg); }
}

.q-hero-mark {
  position: absolute;
  z-index: 3;
  right: 40%;
  bottom: 9%;
  width: 70px;
  padding: 12px;
  border-radius: 20px;
  background: var(--q-surface);
  box-shadow: var(--q-shadow-float);
}

.q-hero--compact {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0 clamp(2.5rem, 5vw, 3.5rem);
}

.q-hero--compact .q-lead {
  margin-top: 1.1rem;
}

.q-crumbs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  color: var(--q-text-2);
  font-size: 0.92rem;
  font-weight: 700;
}

.q-crumbs a {
  color: var(--q-brand-fg);
  text-decoration: none;
}

.q-crumbs a:hover {
  text-decoration: underline;
}

/* Ribbon of puzzle types */

.q-ribbon {
  overflow: hidden;
  border-block: 1px solid var(--q-border);
  background: var(--q-surface);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.q-ribbon-track {
  display: flex;
  width: max-content;
  animation: q-scroll 80s linear infinite;
}

.q-ribbon:hover .q-ribbon-track {
  animation-play-state: paused;
}

.q-ribbon-list {
  display: flex;
  gap: 2.25rem;
  margin: 0;
  padding: 1rem 2.25rem 1rem 0;
  list-style: none;
}

.q-ribbon-list li {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 750;
  font-size: 0.98rem;
  white-space: nowrap;
}

@keyframes q-scroll {
  to { transform: translateX(-50%); }
}

/* Tiles: puzzle icons sit on a light tile in both themes, like the app's own icon tiles. */

.q-tile {
  display: inline-grid;
  place-items: center;
  flex-shrink: 0;
  width: 40px;
  aspect-ratio: 1;
  border-radius: 11px;
  background: var(--q-tile);
  box-shadow: inset 0 0 0 1px rgb(23 24 28 / 0.07);
}

.q-tile img {
  width: 80%;
}

.q-tile--large {
  width: 58px;
  border-radius: 15px;
}

/* Sections */

.q-section {
  padding: clamp(4rem, 9vw, 7.5rem) 0;
}

.q-section--tight {
  padding: clamp(2rem, 4vw, 3rem) 0;
}

.q-section--deep {
  background: var(--q-canvas-deep);
}

.q-section--paper {
  border-block: 1px solid var(--q-border);
  background: var(--q-surface);
}

.q-section-head {
  max-width: 46rem;
  margin-bottom: clamp(2rem, 4vw, 3.25rem);
}

.q-section-head--row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem 2rem;
  max-width: none;
}

.q-section-head--row .q-title {
  margin-bottom: 0;
}

.q-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  align-items: center;
  gap: clamp(2.5rem, 7vw, 6rem);
}

.q-split--reverse .q-split-visual {
  order: -1;
}

.q-split-visual {
  position: relative;
}

/* Steps */

.q-steps {
  display: grid;
  gap: 1.5rem;
  margin: 2.25rem 0 0;
  padding: 0;
  list-style: none;
}

.q-steps li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 1.1rem;
  align-items: start;
}

.q-step-tile {
  display: grid;
  place-items: center;
  width: 48px;
  aspect-ratio: 1;
  border-radius: 12px;
  background: var(--q-ink);
  color: var(--q-inverse);
  font-family: var(--q-font-display);
  font-size: 1.4rem;
  font-weight: 700;
}

.q-step-tile--twist {
  background: var(--q-brand);
  color: var(--q-on-brand);
  transform: translate(4px, 4px);
}

@media (prefers-color-scheme: dark) {
  .q-step-tile {
    background: var(--q-inverse);
    color: var(--q-ink);
  }

  .q-step-tile--twist {
    background: var(--q-brand);
  }
}

.q-steps h3,
.q-card h3 {
  margin-bottom: 0.35rem;
  font-family: var(--q-font-display);
  font-size: 1.38rem;
  font-weight: 700;
  line-height: 1.2;
}

.q-steps p,
.q-card p {
  color: var(--q-text-2);
}

.q-steps strong,
.q-card strong,
.q-checks strong {
  color: var(--q-text);
  font-weight: 800;
}

.q-phone--tilt {
  max-width: 320px;
  margin: 0 auto;
  transform: rotate(-3deg);
}

/* One certain move: three real boards under "Fair by design" */

.q-move {
  margin-top: clamp(3rem, 7vw, 5rem);
}

.q-move-head {
  max-width: 40rem;
  margin-bottom: 1.75rem;
}

.q-move-head h3 {
  margin-bottom: 0.35rem;
  font-family: var(--q-font-display);
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.2;
}

.q-move-head p,
.q-move-steps p {
  color: var(--q-text-2);
}

.q-move-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 3vw, 2rem);
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: q-move;
}

.q-move-steps li {
  display: grid;
  gap: 1rem;
  align-content: start;
  counter-increment: q-move;
}

.q-move-steps img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--q-radius-card);
  box-shadow: var(--q-shadow-raised);
}

.q-move-steps h4 {
  margin: 0 0 0.25rem;
  font-family: var(--q-font-display);
  font-size: 1.2rem;
  font-weight: 700;
}

.q-move-steps h4::before {
  content: counter(q-move) ". ";
  color: var(--q-brand-fg);
}

.q-sticker {
  position: absolute;
  left: max(0px, calc(50% - 250px));
  bottom: 14%;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.8rem 1.1rem;
  border-radius: 18px;
  background: var(--q-surface);
  color: var(--q-text);
  font-weight: 750;
  box-shadow: var(--q-shadow-float);
  transform: rotate(-2deg);
}

.q-sticker .q-icon {
  padding: 4px;
  width: 1.9em;
  height: 1.9em;
  border-radius: 50%;
  background: var(--q-brand-tint);
  color: var(--q-brand-fg);
}

/* Groups */

.q-groups {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.q-group {
  display: grid;
  gap: 0.2rem;
  height: 100%;
  padding: 1.25rem 1.3rem 1.35rem;
  border: 1px solid var(--q-border);
  border-radius: var(--q-radius-card);
  background: var(--q-surface);
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.q-group:hover {
  border-color: var(--q-brand);
  box-shadow: var(--q-shadow-float);
  transform: translateY(-3px);
}

.q-group-stack {
  display: flex;
  margin-bottom: 0.85rem;
}

.q-group-stack .q-tile {
  width: 46px;
  box-shadow: 0 0 0 3px var(--q-surface), inset 0 0 0 1px rgb(23 24 28 / 0.07);
}

.q-group-stack .q-tile + .q-tile {
  margin-left: -10px;
}

.q-group-stack .q-tile:nth-child(2) {
  transform: translateY(3px);
}

.q-group-name {
  font-family: var(--q-font-display);
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1.2;
}

.q-group-count {
  color: var(--q-brand-fg);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.q-group-blurb {
  margin-top: 0.35rem;
  color: var(--q-text-2);
  font-size: 0.97rem;
}

/* Cards and bento */

.q-card {
  position: relative;
  padding: clamp(1.3rem, 2.6vw, 2rem);
  border: 1px solid var(--q-border);
  border-radius: var(--q-radius-card);
  background: var(--q-surface);
  box-shadow: var(--q-shadow-raised);
}

.q-card-icon {
  display: inline-grid;
  place-items: center;
  width: 46px;
  aspect-ratio: 1;
  margin-bottom: 1rem;
  border-radius: 13px;
  background: var(--q-brand-tint);
  color: var(--q-brand-fg);
}

.q-card-icon .q-icon {
  width: 25px;
  height: 25px;
}

.q-bento {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.q-card--feature {
  grid-column: span 2;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 1.5rem;
  min-height: 330px;
  overflow: hidden;
  padding-bottom: 0;
}

.q-card--feature .q-card-copy {
  padding-bottom: clamp(1.3rem, 2.6vw, 2rem);
}

.q-card--feature h3 {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
}

.q-card--daily {
  background:
    radial-gradient(120% 90% at 100% 0%, var(--q-brand-tint), transparent 60%),
    var(--q-surface);
}

.q-phone--peek {
  align-self: end;
  width: min(230px, 100%);
  margin: 0 auto -38%;
  transform: rotate(5deg);
}

.q-card--share .q-phone--peek {
  transform: rotate(-4deg);
}

/* Gallery */

.q-gallery {
  display: flex;
  gap: 1.4rem;
  margin: 0;
  padding: 1rem max(var(--q-gutter), calc((100vw - 1180px) / 2)) 2.5rem;
  overflow-x: auto;
  list-style: none;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: max(var(--q-gutter), calc((100vw - 1180px) / 2));
  scrollbar-width: thin;
  scrollbar-color: var(--q-brand) transparent;
}

.q-gallery li {
  flex: 0 0 clamp(190px, 22vw, 250px);
  scroll-snap-align: start;
}

.q-gallery li:nth-child(even) {
  transform: translateY(1.75rem);
}

.q-gallery:focus-visible {
  outline-offset: -3px;
}

/* Comfort */

.q-comfort {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.q-comfort li {
  display: grid;
  gap: 0.15rem;
  padding: 1.25rem 1.3rem;
  border: 1px solid var(--q-border);
  border-radius: 18px;
  background: var(--q-surface);
}

.q-comfort .q-icon {
  width: 30px;
  height: 30px;
  margin-bottom: 0.65rem;
  color: var(--q-brand-fg);
}

.q-comfort strong {
  font-size: 1.05rem;
  font-weight: 800;
}

.q-comfort span {
  color: var(--q-text-2);
  font-size: 0.96rem;
}

/* Free to play */

.q-checks {
  display: grid;
  gap: 0.9rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}

.q-checks li {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
  color: var(--q-text-2);
}

.q-checks .q-icon {
  width: 28px;
  height: 28px;
  padding: 5px;
  border-radius: 9px;
  background: var(--q-brand);
  color: var(--q-on-brand);
  stroke-width: 4;
}

.q-board {
  max-width: 400px;
  margin: 0 auto;
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border: 1px solid var(--q-border);
  border-radius: 28px;
  background: var(--q-surface);
  box-shadow: var(--q-shadow-float);
  transform: rotate(-1.5deg);
}

.q-board-label {
  margin-bottom: 1rem;
  font-family: var(--q-font-display);
  font-size: 1.3rem;
  font-weight: 700;
}

.q-board-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.q-board-cell {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  border-radius: 10px;
  background: var(--q-brand-tint);
  color: var(--q-brand-fg);
  font-size: 0.92rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.q-board-cell--twist {
  background: var(--q-brand);
  color: var(--q-on-brand);
  box-shadow: inset 0 0 0 1.5px var(--q-logo-twist-stroke);
  transform: translate(5px, 5px);
}

.q-board-foot {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: 1.4rem;
  color: var(--q-text-2);
  font-weight: 750;
}

.q-board-foot .q-icon {
  color: var(--q-brand-fg);
}

/* Privacy in short */

.q-cards-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* FAQ */

.q-faq-wrap {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

.q-faq {
  display: grid;
  gap: 0.75rem;
}

.q-faq details {
  border: 1px solid var(--q-border);
  border-radius: 18px;
  background: var(--q-surface);
  transition: border-color 0.2s ease;
}

.q-faq details[open] {
  border-color: var(--q-brand);
}

.q-faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  font-size: 1.06rem;
  font-weight: 800;
  cursor: pointer;
  list-style: none;
}

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

.q-faq summary::after {
  content: "+";
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 30px;
  aspect-ratio: 1;
  border-radius: 9px;
  background: var(--q-brand-tint);
  color: var(--q-brand-fg);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1;
  transition: transform 0.2s ease;
}

.q-faq details[open] summary::after {
  content: "\2212";
  transform: translate(3px, 3px);
}

.q-faq details p {
  padding: 0 1.25rem 1.25rem;
  color: var(--q-text-2);
}

.q-faq strong {
  color: var(--q-text);
}

/* Final call to action: always ink, like the dark brand pattern. */

.q-final {
  --q-logo-ink: #F7F5EF;
  --q-logo-twist-stroke: transparent;
  --q-border: #303238;
  --q-text-2: #BBBCC5;
  position: relative;
  overflow: hidden;
  padding: clamp(4.5rem, 10vw, 8rem) 0;
  background: #121316 url("/quirk-app/images/tile-grid-dark.svg") center / 256px 256px repeat;
  color: #F7F5EF;
  text-align: center;
}

.q-final::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 70% at 50% 45%, rgb(18 19 22 / 0.35), #121316 78%);
}

.q-final-inner {
  position: relative;
  display: grid;
  justify-items: center;
}

.q-final-mark {
  width: 84px;
  margin-bottom: 1.75rem;
}

.q-final .q-lead {
  margin: 1.2rem auto 0;
}

.q-final .q-store--apple {
  background: #F7F5EF;
  color: #17181C;
}

.q-final .q-store--soon {
  color: #BBBCC5;
}

.q-final--slim {
  padding: clamp(3.5rem, 8vw, 6rem) 0;
}

/* Footer */

.q-footer {
  border-top: 1px solid var(--q-border);
  background: var(--q-canvas);
  color: var(--q-text-2);
  font-size: 0.96rem;
}

.q-footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
  padding: 3rem 0 2rem;
}

.q-footer-logo {
  display: inline-flex;
  margin-bottom: 0.75rem;
  border-radius: 8px;
}

.q-footer-logo .q-logo {
  height: 26px;
}

.q-footer-nav {
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: 0.55rem 2.5rem;
  align-content: start;
}

.q-footer-nav a {
  color: var(--q-text);
  font-weight: 700;
  text-decoration: none;
}

.q-footer-nav a:hover {
  color: var(--q-brand-fg);
  text-decoration: underline;
}

.q-footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 2rem;
  padding: 1.5rem 0 2.5rem;
  border-top: 1px solid var(--q-border);
  font-size: 0.9rem;
}

/* Puzzles page */

.q-search {
  margin-top: 2rem;
}

.q-search[hidden] {
  display: none;
}

.q-search-field {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  max-width: 34rem;
  min-height: 58px;
  padding: 0 1.25rem;
  border: 1.5px solid var(--q-border);
  border-radius: 999px;
  background: var(--q-surface);
  box-shadow: var(--q-shadow-raised);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.q-search-field:focus-within {
  border-color: var(--q-brand-fg);
  box-shadow: 0 0 0 4px var(--q-brand-tint);
}

.q-search-field .q-icon {
  color: var(--q-text-2);
}

.q-search-field input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--q-text);
  font: 600 1.06rem/1.4 var(--q-font-ui);
  outline: none;
}

.q-search-field input::placeholder {
  color: var(--q-text-2);
  opacity: 0.85;
}

.q-search-status {
  min-height: 1.5em;
  margin-top: 0.65rem;
  padding-left: 1.3rem;
  color: var(--q-text-2);
  font-size: 0.92rem;
  font-weight: 650;
}

.q-chips {
  position: sticky;
  top: var(--q-header-h);
  z-index: 40;
  border-block: 1px solid var(--q-border);
  background: var(--q-header-bg);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  backdrop-filter: saturate(1.4) blur(14px);
}

.q-chips ul {
  display: flex;
  gap: 0.5rem;
  margin: 0;
  padding: 0.7rem 0;
  overflow-x: auto;
  list-style: none;
  scrollbar-width: none;
}

.q-chips ul::-webkit-scrollbar {
  display: none;
}

.q-chips a {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--q-border);
  border-radius: 999px;
  background: var(--q-surface);
  font-size: 0.9rem;
  font-weight: 750;
  white-space: nowrap;
  text-decoration: none;
}

.q-chips a:hover {
  border-color: var(--q-brand);
}

.q-chips span {
  color: var(--q-brand-fg);
  font-weight: 800;
}

.q-chips li[hidden] {
  display: none;
}

.q-catalog {
  padding-top: 1rem;
  padding-bottom: clamp(4rem, 8vw, 6rem);
}

.q-catalog-group {
  padding-top: clamp(2.5rem, 5vw, 3.5rem);
  scroll-margin-top: calc(var(--q-header-h) + 64px);
}

.q-catalog-group[hidden] {
  display: none;
}

.q-catalog-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  margin-bottom: 1.25rem;
}

.q-catalog-head p {
  color: var(--q-text-2);
}

.q-catalog-head strong {
  color: var(--q-text);
}

/* The app's group ribbon, in ink. */
.q-ribbon-label {
  display: inline-block;
  padding: 0.5rem 1.6rem 0.45rem;
  background: var(--q-ink);
  color: #F2E6B8;
  font-family: var(--q-font-ui);
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  clip-path: polygon(0 0, 100% 0, calc(100% - 12px) 50%, 100% 100%, 0 100%, 12px 50%);
}

@media (prefers-color-scheme: dark) {
  .q-ribbon-label {
    background: #2E3A33;
  }
}

.q-catalog-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.q-puzzle {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  padding: 1rem 1.15rem;
  border: 1px solid var(--q-border);
  border-radius: 18px;
  background: var(--q-surface);
  scroll-margin-top: calc(var(--q-header-h) + 80px);
}

.q-puzzle[hidden] {
  display: none;
}

.q-puzzle:target {
  border-color: var(--q-brand);
  box-shadow: 0 0 0 4px var(--q-brand-tint);
}

.q-puzzle h3 {
  margin: 0.1rem 0 0.25rem;
  font-family: var(--q-font-display);
  font-size: 1.22rem;
  font-weight: 700;
  line-height: 1.2;
}

.q-puzzle p {
  color: var(--q-text-2);
  font-size: 0.95rem;
  line-height: 1.5;
}

.q-empty {
  padding: 3rem 1rem;
  color: var(--q-text-2);
  font-size: 1.05rem;
  font-weight: 650;
  text-align: center;
}

.q-empty[hidden] {
  display: none;
}

/* Privacy and support */

.q-guide {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.q-guide-card {
  display: grid;
  gap: 0.25rem;
  height: 100%;
  padding: 1.15rem 1.2rem 1.25rem;
  border: 1px solid var(--q-border);
  border-radius: 18px;
  background: var(--q-surface);
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.q-guide-card:hover {
  border-color: var(--q-brand);
  box-shadow: var(--q-shadow-raised);
  transform: translateY(-2px);
}

.q-guide-card .q-card-icon {
  width: 40px;
  margin-bottom: 0.6rem;
}

.q-guide-card .q-card-icon .q-icon {
  width: 22px;
  height: 22px;
}

.q-guide-card strong {
  font-family: var(--q-font-display);
  font-size: 1.18rem;
  font-weight: 700;
}

.q-guide-card span {
  color: var(--q-text-2);
  font-size: 0.95rem;
}

.q-doc {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

.q-toc {
  position: sticky;
  top: calc(var(--q-header-h) + 24px);
  max-height: calc(100vh - var(--q-header-h) - 48px);
  overflow-y: auto;
}

.q-toc-title {
  margin-bottom: 0.75rem;
  color: var(--q-brand-fg);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.q-toc ol {
  display: grid;
  gap: 0.1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.q-toc a {
  display: block;
  padding: 0.4rem 0.7rem;
  border-radius: 10px;
  color: var(--q-text-2);
  font-size: 0.93rem;
  font-weight: 650;
  line-height: 1.35;
  text-decoration: none;
}

.q-toc a:hover,
.q-toc a[aria-current="true"] {
  background: var(--q-canvas);
  color: var(--q-text);
}

.q-toc a[aria-current="true"] {
  box-shadow: inset 3px 0 0 var(--q-brand);
}

.q-prose {
  max-width: 44rem;
  font-size: 1.05rem;
  line-height: 1.75;
}

.q-prose > :first-child {
  margin-top: 0;
}

.q-prose h2 {
  margin: 3rem 0 0.9rem;
  padding-top: 2.25rem;
  border-top: 1px solid var(--q-border);
  font-family: var(--q-font-display);
  font-size: clamp(1.5rem, 2.4vw, 1.85rem);
  font-weight: 700;
  line-height: 1.2;
  scroll-margin-top: calc(var(--q-header-h) + 16px);
}

.q-prose h2:first-child,
.q-prose p:first-child + h2 {
  margin-top: 0;
}

.q-prose h3 {
  margin: 2rem 0 0.6rem;
  font-size: 1.15rem;
  font-weight: 800;
}

.q-prose p,
.q-prose ul,
.q-prose ol {
  margin: 0 0 1.1rem;
  color: var(--q-text-2);
}

.q-prose ul,
.q-prose ol {
  display: grid;
  gap: 0.35rem;
  padding-left: 1.35rem;
}

.q-prose li::marker {
  color: var(--q-brand-fg);
}

.q-prose strong {
  color: var(--q-text);
  font-weight: 800;
  background: linear-gradient(transparent 60%, var(--q-brand-tint) 60%);
}

.q-prose a {
  color: var(--q-brand-fg);
  font-weight: 700;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
  overflow-wrap: anywhere;
}

.q-prose code {
  padding: 0.1em 0.35em;
  border-radius: 6px;
  background: var(--q-surface-muted);
  font-size: 0.92em;
}

/* "How to play": the worked example from the Outpost-generated page, set apart as a callout. */
.q-howto .example {
  margin: 0 0 1.1rem;
  padding: 0.9rem 1.15rem 0.1rem;
  border-left: 4px solid var(--q-brand);
  border-radius: 0 14px 14px 0;
  background: var(--q-surface-muted);
}

.q-puzzle p.q-puzzle-more {
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

.q-puzzle-more a {
  color: var(--q-brand-fg);
  font-weight: 700;
  text-underline-offset: 3px;
}

.q-contact {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  padding: clamp(1.75rem, 4vw, 3rem);
  border: 1px solid var(--q-border);
  border-radius: 28px;
  background:
    radial-gradient(90% 120% at 0% 0%, var(--q-brand-tint), transparent 55%),
    var(--q-surface);
  box-shadow: var(--q-shadow-raised);
}

.q-contact-mark {
  width: 76px;
}

.q-contact-copy .q-title {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  margin-bottom: 0.6rem;
}

.q-contact-copy p:last-child {
  max-width: 34rem;
  color: var(--q-text-2);
}

.q-contact-actions {
  display: grid;
  gap: 0.7rem;
}

.q-contact-actions .q-button span {
  overflow-wrap: anywhere;
}

/* 404 */

.q-missing-inner {
  display: grid;
  justify-items: center;
  text-align: center;
}

.q-missing-mark {
  width: 96px;
  margin-bottom: 2rem;
}

.q-missing .q-lead {
  margin-inline: auto;
}

/* Responsive */

@media (max-width: 1023px) {
  .q-hero-grid,
  .q-split,
  .q-faq-wrap {
    grid-template-columns: minmax(0, 1fr);
  }

  .q-split--reverse .q-split-visual {
    order: 0;
  }

  .q-hero-stage {
    min-height: 540px;
    max-width: 560px;
    width: 100%;
    margin: 0 auto;
  }

  .q-bento {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .q-doc {
    grid-template-columns: minmax(0, 1fr);
  }

  .q-toc {
    position: static;
    max-height: none;
    padding: 1.25rem;
    border: 1px solid var(--q-border);
    border-radius: 18px;
    background: var(--q-canvas);
  }

  .q-toc ol {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  }

  .q-contact {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 719px) {
  /* On phones the two-row header scrolls away; only the group chips stay at the top. */
  :root {
    --q-header-h: 0px;
  }

  .q-move-steps {
    grid-template-columns: minmax(0, 1fr);
  }

  .q-move-steps li {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: center;
  }

  .q-move-steps img {
    border-radius: 14px;
  }

  .q-header {
    position: relative;
  }

  .q-header-bar {
    display: grid;
    grid-template-columns: auto auto;
    justify-content: space-between;
    gap: 0.35rem 1rem;
    padding-top: 0.6rem;
    padding-bottom: 0.5rem;
  }

  .q-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    margin: 0 -0.6rem;
  }

  .q-nav a {
    padding: 0.4rem 0.6rem;
  }

  .q-hero-stage {
    min-height: 430px;
  }

  .q-phone {
    padding: 5px;
    border-radius: 28px;
  }

  .q-phone img {
    border-radius: 23px;
  }

  .q-phone--front {
    width: 54%;
    right: 4%;
  }

  .q-phone--back {
    width: 46%;
  }

  .q-float {
    width: 52px;
    border-radius: 14px;
  }

  .q-float--2,
  .q-float--4 {
    width: 46px;
  }

  .q-hero-mark {
    width: 56px;
    padding: 9px;
    border-radius: 16px;
  }

  .q-stores {
    flex-direction: column;
  }

  .q-store {
    justify-content: center;
  }

  .q-bento {
    grid-template-columns: minmax(0, 1fr);
  }

  .q-card--feature {
    grid-column: auto;
    grid-template-columns: minmax(0, 1fr);
    min-height: 0;
  }

  .q-phone--peek {
    width: 62%;
    margin-bottom: -48%;
  }

  .q-sticker {
    left: 0;
    bottom: 8%;
    font-size: 0.92rem;
  }

  .q-catalog-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .q-footer-nav {
    grid-template-columns: minmax(0, 1fr);
  }

  .q-gallery li:nth-child(even) {
    transform: none;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .q-ribbon {
    overflow-x: auto;
  }

  .q-ribbon-list[aria-hidden="true"] {
    display: none;
  }
}

@media (forced-colors: active) {
  .q-tile,
  .q-card,
  .q-group,
  .q-puzzle,
  .q-button,
  .q-store {
    border: 1px solid CanvasText;
  }
}

@media print {
  .q-header,
  .q-footer,
  .q-final,
  .q-toc,
  .q-chips,
  .q-search {
    display: none !important;
  }

  .q-section--paper {
    border: 0;
  }
}