/* x4u.ca: the same palette and type as the app. */
:root {
  --pile: #161113;
  --nap: #201819;
  --weave: #2b2123;
  --seam: #3d2f32;
  --linen: #f3ebe6;
  --dust: #a9989b;
  --pink: #ff2e7e;
  --pink-light: #ff86b2;
  --saffron: #e9bc62;
  --display: "Fraunces", ui-serif, Georgia, serif;
  --sans: "Figtree", ui-sans-serif, system-ui, sans-serif;
  --radius: 14px;
  --wide: 72rem;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }
body {
  margin: 0;
  background: var(--pile);
  color: var(--linen);
  font: 400 1.0625rem/1.65 var(--sans);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--pink-light); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--pink); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { font-family: var(--display); font-weight: 500; line-height: 1.15; margin: 0; letter-spacing: -0.01em; }
p { margin: 0; }
code { font: 0.9em ui-monospace, SFMono-Regular, Consolas, monospace; background: var(--weave); border: 1px solid var(--seam); border-radius: 6px; padding: 0.05em 0.35em; }

.wrap { width: min(var(--wide), 100% - 2rem); margin-inline: auto; }
.narrow { width: min(46rem, 100% - 2rem); margin-inline: auto; }
.eyebrow { font: 600 0.75rem/1 var(--sans); letter-spacing: 0.14em; text-transform: uppercase; color: var(--pink); }
.lede { color: var(--dust); font-size: 1.15rem; }
.muted { color: var(--dust); }

/* Header */
.top {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--pile) 82%, transparent);
  backdrop-filter: saturate(1.3) blur(14px);
  -webkit-backdrop-filter: saturate(1.3) blur(14px);
  border-bottom: 1px solid color-mix(in srgb, var(--seam) 60%, transparent);
}
.top .wrap { display: flex; align-items: center; gap: 1.25rem; height: 4rem; }
.brand img { height: 1.9rem; width: auto; }
.nav { display: flex; gap: 0.25rem; margin-left: 0.75rem; }
.nav a { color: var(--dust); padding: 0.4rem 0.75rem; border-radius: 999px; font-size: 0.95rem; }
.nav a:hover { color: var(--linen); background: var(--nap); text-decoration: none; }
.nav a[aria-current="page"] { color: var(--linen); background: var(--weave); }
.top .actions { margin-left: auto; display: flex; align-items: center; gap: 0.5rem; }
.menu-button { display: none; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.7rem 1.3rem; border-radius: 999px; border: 1px solid transparent;
  font: 600 0.98rem/1 var(--sans); cursor: pointer; white-space: nowrap;
  transition: background 0.15s, border-color 0.15s, transform 0.15s;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--pink); color: #fff; box-shadow: 0 8px 30px -10px color-mix(in srgb, var(--pink) 70%, transparent); }
.btn.primary:hover { background: #ff4a90; }
.btn.ghost { background: var(--nap); border-color: var(--seam); color: var(--linen); }
.btn.ghost:hover { background: var(--weave); }
.btn.small { padding: 0.5rem 0.95rem; font-size: 0.88rem; }
.btn svg { width: 1.05em; height: 1.05em; flex: none; }

/* The blur toggle */
.blur-toggle {
  display: inline-flex; align-items: center; gap: 0.55rem; cursor: pointer;
  padding: 0.4rem 0.75rem 0.4rem 0.5rem; border-radius: 999px; border: 1px solid var(--seam);
  background: var(--nap); color: var(--dust); font: 500 0.85rem/1 var(--sans);
}
.blur-toggle:hover { color: var(--linen); }
.blur-toggle .track { position: relative; width: 2rem; height: 1.15rem; border-radius: 999px; background: var(--seam); transition: background 0.2s; }
.blur-toggle .track::after { content: ""; position: absolute; top: 0.15rem; left: 0.15rem; width: 0.85rem; height: 0.85rem; border-radius: 50%; background: var(--linen); transition: transform 0.2s; }
html[data-blur="on"] .blur-toggle .track { background: var(--pink); }
html[data-blur="on"] .blur-toggle .track::after { transform: translateX(0.85rem); }

/* Screenshots: the clear and the softened copy stacked, the toggle choosing. */
.shot { position: relative; margin: 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--seam); background: var(--nap); box-shadow: 0 30px 80px -30px #000, 0 0 0 1px #0004; }
.shot img { width: 100%; }
.shot .soft { position: absolute; inset: 0; height: 100%; object-fit: cover; opacity: 0; transition: opacity 0.35s ease; }
html[data-blur="on"] .shot .soft { opacity: 1; }
.shot.phone { border-radius: 2rem; border: 6px solid #0b0809; box-shadow: 0 0 0 1px var(--seam), 0 30px 80px -30px #000; max-width: 19rem; }
figcaption { color: var(--dust); font-size: 0.9rem; margin-top: 0.75rem; }

/* Hero */
.hero { position: relative; padding: 5.5rem 0 3rem; text-align: center; isolation: isolate; }
.hero::before {
  content: ""; position: absolute; inset: -10rem 0 auto; height: 40rem; z-index: -1;
  background: radial-gradient(40rem 22rem at 50% 30%, color-mix(in srgb, var(--pink) 22%, transparent), transparent 70%),
              radial-gradient(60rem 30rem at 50% 0%, var(--weave), transparent 70%);
}
.hero h1 { font-size: clamp(2.5rem, 6.5vw, 4.6rem); max-width: 16ch; margin: 1rem auto 0; }
.hero h1 em { font-style: italic; color: var(--pink-light); }
.hero .lede { max-width: 38rem; margin: 1.25rem auto 0; }
.hero .cta { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; margin-top: 2rem; }
.hero .meta { margin-top: 1rem; font-size: 0.88rem; color: var(--dust); }
.hero-shot { margin-top: 3.5rem; }

/* Sections */
section.block { padding: 5rem 0; }
section.block + section.block { border-top: 1px solid color-mix(in srgb, var(--seam) 50%, transparent); }
.head { max-width: 40rem; margin-bottom: 2.5rem; }
.head h2 { font-size: clamp(1.9rem, 4vw, 2.7rem); margin-top: 0.75rem; }
.head p { margin-top: 1rem; color: var(--dust); font-size: 1.08rem; }
.head.center { margin-inline: auto; text-align: center; }

.split { display: grid; grid-template-columns: 1fr 1.35fr; gap: 3.5rem; align-items: center; }
.split.flip { grid-template-columns: 1.35fr 1fr; }
.split.flip > :first-child { order: 2; }
.split h2 { font-size: clamp(1.7rem, 3.4vw, 2.3rem); margin-top: 0.75rem; }
.split p { margin-top: 1rem; color: var(--dust); }
.ticks { list-style: none; padding: 0; margin: 1.5rem 0 0; display: grid; gap: 0.7rem; }
.ticks li { position: relative; padding-left: 1.75rem; color: var(--linen); }
.ticks li::before { content: ""; position: absolute; left: 0; top: 0.5em; width: 0.95rem; height: 0.55rem; border-left: 2px solid var(--pink); border-bottom: 2px solid var(--pink); transform: rotate(-45deg) translateY(-0.2rem); }

.grid { display: grid; gap: 1rem; grid-template-columns: repeat(3, 1fr); }
.card { background: var(--nap); border: 1px solid var(--seam); border-radius: var(--radius); padding: 1.5rem; }
.card h3 { font-size: 1.25rem; margin-top: 1rem; }
.card p { color: var(--dust); margin-top: 0.5rem; font-size: 0.98rem; }
.icon { width: 2.6rem; height: 2.6rem; border-radius: 0.8rem; display: grid; place-items: center; background: color-mix(in srgb, var(--pink) 14%, var(--weave)); color: var(--pink-light); }
.icon svg { width: 1.3rem; height: 1.3rem; }

.gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem; }
.phones { display: flex; gap: 1.5rem; justify-content: center; flex-wrap: wrap; }

.band {
  border-radius: calc(var(--radius) * 1.6); padding: clamp(2rem, 5vw, 3.5rem);
  background: radial-gradient(30rem 16rem at 85% 0%, color-mix(in srgb, var(--pink) 25%, transparent), transparent 70%), var(--nap);
  border: 1px solid var(--seam);
}
.band h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.band p { color: var(--dust); margin-top: 0.9rem; max-width: 36rem; }
.band .cta { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 1.75rem; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-top: 3rem; }
.stat { padding: 1.25rem; border-radius: var(--radius); background: var(--nap); border: 1px solid var(--seam); }
.stat b { display: block; font: 500 1.9rem/1.1 var(--display); color: var(--linen); }
.stat span { color: var(--dust); font-size: 0.92rem; }

/* Pages of text: Support, Changelog, Get x4u */
.page-head { padding: 4.5rem 0 2rem; }
.page-head h1 { font-size: clamp(2.3rem, 5vw, 3.4rem); margin-top: 0.75rem; }
.page-head p { margin-top: 1rem; }
.prose { padding-bottom: 5rem; }
.prose h2 { font-size: 1.7rem; margin: 3rem 0 1rem; scroll-margin-top: 5rem; }
.prose h3 { font-size: 1.25rem; margin: 2rem 0 0.75rem; }
.prose p, .prose ol, .prose ul { color: color-mix(in srgb, var(--linen) 88%, var(--dust)); margin: 0.9rem 0 0; }
.prose ol, .prose ul { padding-left: 1.3rem; display: grid; gap: 0.4rem; }
.prose li::marker { color: var(--dust); }
.prose .in-app { color: var(--linen); font-weight: 500; }
.prose details { border: 1px solid var(--seam); background: var(--nap); border-radius: 12px; margin-top: 0.75rem; }
.prose summary { cursor: pointer; padding: 1rem 1.25rem; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
.prose summary::-webkit-details-marker { display: none; }
.prose summary::after { content: "+"; color: var(--pink); font-weight: 400; font-size: 1.3rem; line-height: 1; }
.prose details[open] summary::after { content: "–"; }
.prose details > div { padding: 0 1.25rem 1.1rem; color: color-mix(in srgb, var(--linen) 85%, var(--dust)); }
.prose details > div p:first-child { margin-top: 0; }
.toc { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.75rem; }
.toc a { padding: 0.4rem 0.85rem; border-radius: 999px; background: var(--nap); border: 1px solid var(--seam); color: var(--linen); font-size: 0.88rem; }
.toc a:hover { background: var(--weave); text-decoration: none; }
.release { border-left: 2px solid var(--seam); padding-left: 1.5rem; margin-top: 3rem; }
.release h2 { margin-top: 0; }
.release .tag { display: inline-block; font: 600 0.72rem/1 var(--sans); letter-spacing: 0.1em; text-transform: uppercase; color: var(--saffron); margin-bottom: 0.6rem; }
.release ul { gap: 0.75rem; }

.steps { counter-reset: step; list-style: none; padding: 0; display: grid; gap: 1rem; margin-top: 1.5rem; }
.steps li { counter-increment: step; position: relative; padding: 1.25rem 1.25rem 1.25rem 4rem; background: var(--nap); border: 1px solid var(--seam); border-radius: var(--radius); }
.steps li::before { content: counter(step); position: absolute; left: 1.25rem; top: 1.15rem; width: 1.8rem; height: 1.8rem; border-radius: 50%; display: grid; place-items: center; background: var(--pink); color: #fff; font: 600 0.9rem/1 var(--sans); }
.steps b { display: block; color: var(--linen); }
.steps span { color: var(--dust); }
.os { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 1.5rem; }
.os .card h3 { margin-top: 0; }

/* Footer */
.foot { border-top: 1px solid var(--seam); padding: 3rem 0; margin-top: 2rem; color: var(--dust); font-size: 0.9rem; }
.foot .wrap { display: flex; gap: 2rem; justify-content: space-between; flex-wrap: wrap; align-items: flex-start; }
.foot img { height: 1.6rem; width: auto; margin-bottom: 0.75rem; }
.foot nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.foot nav a { color: var(--dust); }
.foot nav a:hover { color: var(--linen); }
.adult { display: inline-flex; align-items: center; gap: 0.4rem; margin-top: 0.5rem; }
.adult b { border: 1px solid var(--seam); border-radius: 6px; padding: 0.05rem 0.35rem; color: var(--linen); font-size: 0.78rem; }

/* Phones and small tablets */
@media (max-width: 900px) {
  .split, .split.flip { grid-template-columns: 1fr; gap: 2rem; }
  .split.flip > :first-child { order: 0; }
  .grid, .os { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .nav { display: none; position: absolute; top: 4rem; left: 0; right: 0; flex-direction: column; margin: 0; padding: 0.75rem 1rem 1rem; background: var(--pile); border-bottom: 1px solid var(--seam); }
  .nav a { padding: 0.75rem 1rem; }
  .top[data-open] .nav { display: flex; }
  .menu-button { display: inline-flex; padding: 0.5rem; border-radius: 10px; border: 1px solid var(--seam); background: var(--nap); color: var(--linen); cursor: pointer; }
  .menu-button svg { width: 1.2rem; height: 1.2rem; }
  .top .actions .get { display: none; }
  .blur-toggle .label { display: none; }
  .grid, .os, .gallery { grid-template-columns: 1fr; }
  .hero { padding-top: 3.5rem; }
  section.block { padding: 3.5rem 0; }
  .wrap, .narrow { width: calc(100% - 2rem); }
}