/* The landing page is deliberately dependency-free: no framework, no CDN, no
   build step. It is a static page on GitHub Pages, and it should load in one
   request. The palette is the application's own, so the page and the product
   look like the same thing. */

:root {
  color-scheme: dark;

  --bg: #0f1115;
  --surface: #161920;
  --surface-2: #1b1f27;
  --inset: #0c0e12;
  --line: #262b35;
  --line-strong: #363d4b;
  --text: #e7e9ee;
  --muted: #9aa3b2;
  --subtle: #949cab;
  --accent: #2f6fed;
  --accent-hover: #2a63d6;
  --ok: #3fb950;
  --warn: #d29922;
  --radius: 12px;
  --radius-sm: 8px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto,
    Ubuntu, "Helvetica Neue", sans-serif;
}

* {
  min-width: 0;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    animation: none !important;
    transition: none !important;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}

/* A soft glow behind the first screen, so the page does not read as a wall. */
body::before {
  content: "";
  position: fixed;
  inset: -20% 0 auto 0;
  height: 70vh;
  background:
    radial-gradient(60% 60% at 50% 0%, rgba(59, 130, 246, 0.16), transparent 70%),
    radial-gradient(40% 40% at 85% 10%, rgba(139, 92, 246, 0.1), transparent 70%);
  pointer-events: none;
  z-index: -1;
}

a {
  color: inherit;
}

code {
  font-family: var(--mono);
  font-size: 0.9em;
}

kbd {
  font-family: var(--mono);
  font-size: 0.8em;
  padding: 0.1em 0.35em;
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: var(--surface-2);
  color: var(--text);
  white-space: nowrap;
}

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

.wrap {
  width: min(1120px, calc(100% - 3rem));
  margin-inline: auto;
}

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 10;
  padding: 0.5rem 0.75rem;
  background: var(--surface);
  border-radius: var(--radius-sm);
}

/* ------------------------------------------------------------------ topbar */

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(12px);
  background: rgba(15, 17, 21, 0.72);
  border-bottom: 1px solid var(--line);
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 3.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: -0.01em;
}

.brand img {
  border-radius: 6px;
}

.nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.9rem;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s;
}

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

@media (max-width: 640px) {
  .nav {
    display: none;
  }
}

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

.hero {
  padding: 5rem 0 3rem;
  text-align: center;
}

.eyebrow {
  margin: 0 0 1rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--subtle);
}

h1 {
  margin: 0;
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  font-weight: 700;
}

.lede {
  max-width: 42rem;
  margin: 1.25rem auto 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 2.75rem;
  padding: 0 1.25rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  transition:
    background 0.15s,
    border-color 0.15s;
}

.button:hover {
  background: #232833;
  border-color: #4a5262;
}

.button__icon {
  flex: none;
  width: 1.05rem;
  height: 1.05rem;
}

.button__icon--apple {
  width: 1.2rem;
  height: 1.2rem;
  margin-top: -0.1rem;
}

.button--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.button--primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.meta {
  margin: 1rem 0 0;
  font-size: 0.85rem;
  color: var(--subtle);
}

.meta a {
  color: var(--muted);
}

/* The download is the one thing someone who lands from a link sees, and the
   install section is far below it. The quarantine step lives next to the
   button, so it is read before the disk image is opened, not after. */
.hero-note {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  max-width: 40rem;
  margin: 1.75rem auto 0;
  padding: 0.9rem 1.1rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--warn);
  border-radius: var(--radius-sm);
  background: var(--surface);
  text-align: left;
  color: var(--muted);
  font-size: 0.9rem;
}

.hero-note p {
  margin: 0;
}

.hero-note__title {
  margin-bottom: 0.15rem;
  color: var(--text);
  font-weight: 600;
}

.hero-note strong {
  color: var(--text);
  font-weight: 600;
}

.hero-note__icon {
  flex: none;
  width: 1.15rem;
  height: 1.15rem;
  margin-top: 0.2rem;
  color: var(--warn);
}

.hero-note a {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--line-strong);
  text-underline-offset: 3px;
  white-space: nowrap;
}

.hero-note a:hover {
  text-decoration-color: var(--accent);
}

.shot {
  margin: 3rem 0 0;
}

.shot img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow:
    0 40px 80px -30px rgba(0, 0, 0, 0.85),
    0 0 0 1px rgba(255, 255, 255, 0.02);
}

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

.band {
  padding: 4.5rem 0;
  border-top: 1px solid var(--line);
}

.band--split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 900px) {
  .band--split {
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
  }
}

h2 {
  margin: 0;
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  letter-spacing: -0.02em;
  font-weight: 650;
}

.section-lede {
  margin: 0.6rem 0 2.25rem;
  color: var(--muted);
  max-width: 40rem;
}

/* -------------------------------------------------------------------- grid */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.card {
  padding: 1.25rem 1.25rem 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
}

.card__icon {
  display: block;
  margin-bottom: 0.85rem;
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 600;
}

.card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

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

.steps {
  margin: 1.5rem 0 1.5rem;
  padding-left: 1.2rem;
  color: var(--muted);
}

.steps li {
  margin: 0.5rem 0;
}

.steps strong {
  color: var(--text);
  font-weight: 600;
}

.muted {
  color: var(--muted);
  font-size: 0.9rem;
}

/* ------------------------------------------------------------------- notice */

.notice {
  align-self: start;
  padding: 1.25rem;
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--warn);
  border-radius: var(--radius);
  background: var(--surface);
}

.notice h3 {
  margin: 0 0 0.6rem;
  font-size: 0.95rem;
  font-weight: 600;
}

.notice p {
  margin: 0.6rem 0;
  font-size: 0.88rem;
  color: var(--muted);
}

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

.notice__small {
  font-size: 0.8rem;
  color: var(--subtle);
}

.command {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin: 0.5rem 0;
  padding: 0.55rem 0.6rem 0.55rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--inset);
}

/* The command wraps rather than scrolling out of view: a truncated command is
   useless to copy by eye. */
.command code {
  font-size: 0.78rem;
  line-height: 1.5;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  color: #a5d6ff;
}

.copy {
  flex: none;
  margin-left: auto;
  margin-top: 1px;
  padding: 0.25rem 0.55rem;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--muted);
  font: inherit;
  font-size: 0.75rem;
  cursor: pointer;
}

.copy:hover {
  color: var(--text);
  background: #232833;
}

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

.ticks {
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.ticks li {
  position: relative;
  margin: 0.55rem 0;
  padding-left: 1.5rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.ticks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 999px;
  background: var(--ok);
  opacity: 0.75;
}

/* ------------------------------------------------------------------ finale */

.finale {
  text-align: center;
  padding-bottom: 5rem;
}

.finale .section-lede {
  margin-inline: auto;
}

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

.footer {
  border-top: 1px solid var(--line);
  padding: 1.75rem 0;
  font-size: 0.85rem;
  color: var(--subtle);
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
}

.footer nav {
  display: flex;
  gap: 1.25rem;
}

.footer a {
  color: var(--muted);
  text-decoration: none;
}

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