/*
  Nitfree's landing page, in the look of its store artwork: Discord's blurple fading to a lighter
  blue under a fine dot grid, heavy white headlines, and Discord's dark surfaces for the rest.
  The typeface is bundled, so the page asks nothing of other servers.
*/

@font-face {
  font-family: "Noto Sans";
  font-weight: 400;
  font-display: swap;
  src: url("fonts/noto-sans-400.woff2") format("woff2");
}

@font-face {
  font-family: "Noto Sans";
  font-weight: 600;
  font-display: swap;
  src: url("fonts/noto-sans-600.woff2") format("woff2");
}

@font-face {
  font-family: "Noto Sans";
  font-weight: 800;
  font-display: swap;
  src: url("fonts/noto-sans-800.woff2") format("woff2");
}

:root {
  --blurple: #5865f2;
  --sky: #86a8ff;
  --bg: #1e1f22;
  --surface: #2b2d31;
  --surface-high: #313338;
  --border: #3f4147;
  --text: #f2f3f5;
  --muted: #b5bac1;
  --radius: 16px;
  --gutter: clamp(16px, 5vw, 48px);
  --bar-height: 72px;
  --width: 1160px;

  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--bar-height);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Noto Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img,
video {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
}

code,
kbd {
  padding: 1px 6px;
  border-radius: 6px;
  background: rgb(255 255 255 / 14%);
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 0.88em;
}

kbd {
  border-bottom: 2px solid rgb(0 0 0 / 25%);
}

:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 3px;
}

/* The store artwork's backdrop: blurple to sky, with a dot grid over it. */
.hero {
  position: relative;
  overflow: hidden;
  /* Runs up behind the top bar, which stays in view as the page scrolls. */
  margin-top: calc(-1 * var(--bar-height));
  padding: var(--bar-height) var(--gutter) clamp(48px, 8vw, 96px);
  background:
    radial-gradient(rgb(255 255 255 / 14%) 1px, transparent 1.5px) 0 0 / 22px 22px,
    linear-gradient(115deg, #4c64ea 0%, var(--blurple) 35%, var(--sky) 100%);
}

/* The top bar: clear over the hero, then a dark blurred backdrop once the page has scrolled. */
.bar {
  position: sticky;
  top: 0;
  z-index: 10;
  height: var(--bar-height);
  padding: 0 var(--gutter);
  border-bottom: 1px solid transparent;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.bar.scrolled {
  border-bottom-color: var(--border);
  background: rgb(30 31 34 / 82%);
  backdrop-filter: blur(14px);
}

.bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--width);
  height: 100%;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  text-decoration: none;
}

.brand img {
  border-radius: 10px;
}

.bar-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.bar-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgb(255 255 255 / 16%);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.15s ease;
}

.bar-link:hover {
  background: rgb(255 255 255 / 26%);
}

.bar-link.icon {
  width: 40px;
  padding: 0;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
  max-width: var(--width);
  margin: clamp(16px, 4vw, 48px) auto 0;
}

h1 {
  margin: 0;
  font-size: clamp(36px, 5.2vw, 60px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.lead {
  max-width: 34em;
  margin: 20px 0 0;
  color: rgb(255 255 255 / 88%);
  font-size: clamp(17px, 1.6vw, 19px);
}

.meta {
  margin: 20px 0 0;
  color: rgb(255 255 255 / 80%);
  font-size: 14px;
}

.hero-shot {
  margin: 0;
}

.hero-shot img,
.feature-shot {
  border-radius: var(--radius);
  box-shadow: 0 30px 80px rgb(10 15 60 / 45%), 0 0 0 1px rgb(255 255 255 / 8%);
}

/* The download buttons: white on the gradient, the browser's name in bold. */
.stores {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.store {
  display: flex;
  flex-direction: column;
  min-width: 108px;
  padding: 10px 16px;
  border-radius: 12px;
  background: #fff;
  color: #1e1f22;
  line-height: 1.25;
  text-decoration: none;
  box-shadow: 0 8px 20px rgb(20 30 120 / 25%);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

a.store:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgb(20 30 120 / 35%);
}

.store-label {
  color: #4e5058;
  font-size: 12px;
  font-weight: 600;
}

.store-name {
  font-size: 19px;
  font-weight: 800;
}

/* A browser with no store yet: Discord's disabled button, a dimmed gray that does not respond. */
.store.soon {
  background: #4e5058;
  color: #b5bac1;
  box-shadow: none;
  opacity: 0.5;
  cursor: not-allowed;
  user-select: none;
}

.store.soon .store-label {
  color: #b5bac1;
}

main > section {
  max-width: var(--width);
  margin: 0 auto;
  padding: clamp(56px, 9vw, 112px) var(--gutter) 0;
}

.section-title {
  max-width: 20em;
  margin: 0 auto clamp(32px, 6vw, 64px);
  font-size: clamp(28px, 3.6vw, 42px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.015em;
  text-align: center;
}

/* Each feature: what it does beside a screenshot, sides swapping from one to the next. */
.feature {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
}

.feature + .feature {
  margin-top: clamp(56px, 9vw, 112px);
}

.feature:nth-of-type(even) {
  grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
}

.feature:nth-of-type(even) .feature-copy {
  order: 2;
}

.feature h3 {
  margin: 0 0 12px;
  font-size: clamp(24px, 2.6vw, 32px);
  font-weight: 800;
  line-height: 1.2;
}

.feature p {
  margin: 0;
  color: var(--muted);
}

.feature .eyebrow {
  margin-bottom: 8px;
  color: var(--sky);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.card {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.card h3 {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 800;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

/* The trailer: its thumbnail and a play button, swapped for YouTube's player once played. */
.video {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  background: #000;
  box-shadow: 0 30px 80px rgb(0 0 0 / 40%);
}

.video img,
.video iframe {
  width: 100%;
  height: 100%;
  border: 0;
  object-fit: cover;
}

.play {
  position: absolute;
  top: 50%;
  left: 50%;
  display: grid;
  place-items: center;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: #fff;
  color: var(--blurple);
  box-shadow: 0 12px 32px rgb(0 0 0 / 35%);
  transform: translate(-50%, -50%);
  transition: transform 0.15s ease;
}

.video:hover .play {
  transform: translate(-50%, -50%) scale(1.08);
}

.video-note {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* Scroll reveal: only once the script runs, so the page shows in full without it. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.js [data-reveal].shown {
  opacity: 1;
  transform: none;
}

.privacy {
  text-align: center;
}

.privacy h2,
.cta h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 3.6vw, 42px);
  font-weight: 800;
}

.privacy p {
  max-width: 36em;
  margin: 0 auto 16px;
  color: var(--muted);
}

.text-link {
  color: var(--sky);
  font-weight: 600;
}

/* The closing call, on the hero's gradient again. */
main > .cta {
  max-width: calc(var(--width) - 2 * var(--gutter));
  margin-top: clamp(56px, 9vw, 112px);
  padding: clamp(40px, 6vw, 64px) var(--gutter);
  border-radius: 24px;
  background:
    radial-gradient(rgb(255 255 255 / 14%) 1px, transparent 1.5px) 0 0 / 22px 22px,
    linear-gradient(115deg, #4c64ea 0%, var(--blurple) 35%, var(--sky) 100%);
  text-align: center;
}

.cta .stores {
  justify-content: center;
  margin-top: 24px;
}

.footer {
  max-width: var(--width);
  margin: 0 auto;
  padding: 48px var(--gutter);
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.footer p {
  margin: 4px 0;
}

.footer a {
  color: var(--text);
}

@media (width <= 860px) {
  .hero-inner,
  .feature,
  .feature:nth-of-type(even) {
    grid-template-columns: minmax(0, 1fr);
  }

  .feature:nth-of-type(even) .feature-copy {
    order: 0;
  }

  main > .cta {
    margin-inline: var(--gutter);
  }
}

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

  .store,
  .bar,
  .bar-link,
  .play {
    transition: none;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  a.store:hover {
    transform: none;
  }
}