:root {
  color-scheme: light;
  --bg: #f6efe6;
  --bg-soft: rgba(255, 251, 247, 0.74);
  --surface: rgba(255, 255, 255, 0.7);
  --surface-strong: rgba(255, 255, 255, 0.9);
  --surface-line: rgba(27, 64, 82, 0.12);
  --text: #102431;
  --muted: #4d6777;
  --hot: #ef6b46;
  --cool: #0ca3c7;
  --mint: #1b8a72;
  --gold: #e6a63c;
  --shadow: 0 24px 90px rgba(42, 49, 56, 0.14);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --content-width: min(1180px, calc(100vw - 2rem));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 10%, rgba(12, 163, 199, 0.2), transparent 24%),
    radial-gradient(circle at 82% 12%, rgba(239, 107, 70, 0.2), transparent 22%),
    radial-gradient(circle at 68% 72%, rgba(27, 138, 114, 0.12), transparent 20%),
    radial-gradient(circle at 32% 88%, rgba(230, 166, 60, 0.12), transparent 18%),
    linear-gradient(135deg, #fcf5eb 0%, #f6efe6 40%, #efe4d8 72%, #e9ded1 100%);
  color: var(--text);
  font-family: "Space Grotesk", "Avenir Next", "Segoe UI", sans-serif;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

main p a {
  color: var(--cool);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

code,
pre {
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

.page-shell {
  position: relative;
  isolation: isolate;
  overflow: clip;
}

.ambient {
  position: absolute;
  inset: auto;
  opacity: 0.24;
  pointer-events: none;
  z-index: -2;
  border-radius: 999px;
}

.ambient-one {
  top: 8rem;
  left: -6rem;
  width: 24rem;
  height: 24rem;
  background:
    radial-gradient(circle at 35% 35%, rgba(255, 255, 255, 0.45), rgba(255, 255, 255, 0) 38%),
    radial-gradient(circle, rgba(12, 163, 199, 0.22), rgba(12, 163, 199, 0.08) 58%, transparent 72%);
}

.ambient-two {
  right: -5rem;
  top: 24rem;
  width: 28rem;
  height: 28rem;
  background:
    radial-gradient(circle at 40% 38%, rgba(255, 247, 242, 0.52), rgba(255, 247, 242, 0) 34%),
    radial-gradient(circle, rgba(239, 107, 70, 0.2), rgba(239, 107, 70, 0.07) 56%, transparent 72%);
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(16, 36, 49, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 36, 49, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.58;
  pointer-events: none;
  z-index: -1;
}

.hero,
main {
  width: var(--content-width);
  margin: 0 auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0 0;
  text-decoration: underline;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.brand img {
  width: 54px;
  height: 54px;
  padding: 0.65rem;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.6);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  text-decoration: underline;
}

.nav-links a:not(.button) {
  color: var(--muted);
}

.hero-content {
  padding: 4rem 0 2.5rem;
}

.hero-copy {
  max-width: 72rem;
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--mint);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.hero-copy h1,
.section-heading h2 {
  margin: 0;
  font-family: "Sora", "Avenir Next", sans-serif;
  font-size: clamp(2.8rem, 5vw, 5.7rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.hero-copy h1 {
  font-size: clamp(1.9rem, 3.3vw, 3.5rem);
}

.hero-copy .tablet-shell {
  margin: 1.35rem auto 1.6rem;
}

.lede,
.story-card p,
.install-card p,
.callout {
  color: var(--muted);
  line-height: 1.7;
  font-size: 1.02rem;
}

.lede {
  text-align: justify;
}

.hero-actions,
.feature-pills {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-actions {
  margin: 2rem 0 1.6rem;
  justify-content: center;
}

.feature-pills {
  padding: 0;
  margin: 0;
  list-style: none;
  justify-content: center;
}

.feature-pills li {
  padding: 0.8rem 1rem;
  border: 1px solid rgba(16, 36, 49, 0.08);
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(247, 241, 234, 0.92));
  box-shadow: 0 10px 24px rgba(16, 36, 49, 0.06);
  color: #1d3a4b;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.85rem 1.3rem;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

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

.button.primary {
  background: linear-gradient(135deg, var(--cool), var(--mint));
  color: #f8fffe;
  box-shadow: 0 12px 32px rgba(12, 163, 199, 0.22);
}

.button.secondary,
.button.ghost {
  background: rgba(255, 255, 255, 0.56);
  border: 1px solid rgba(16, 36, 49, 0.08);
}

.tablet-shell {
  position: relative;
  overflow: hidden;
  width: min(44rem, 100%);
  padding: 1.18rem 2rem 1.18rem 1.18rem;
  border-radius: 2.4rem;
  border: 1px solid rgba(255, 255, 255, 0.72);
  background:
    linear-gradient(155deg, rgba(247, 250, 252, 0.98), rgba(193, 205, 214, 0.9)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(186, 198, 206, 0.82));
  box-shadow:
    var(--shadow),
    0 1.2rem 2.4rem rgba(16, 36, 49, 0.08);
}

.tablet-shell::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0.28rem;
  width: 0.56rem;
  height: 0.56rem;
  transform: translateY(-50%);
  border-radius: 50%;
  background: #7b8790;
}

.tablet-shell::after {
  content: "";
  position: absolute;
  top: 50%;
  right: calc((2rem - 1.42rem) / 2);
  width: 1.42rem;
  height: 1.42rem;
  transform: translateY(-50%);
  border-radius: 50%;
  border: 0.12rem solid rgba(100, 117, 128, 0.58);
  background: linear-gradient(180deg, rgba(248, 250, 252, 0.46), rgba(194, 206, 214, 0.28));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.52),
    0 1px 0 rgba(255, 255, 255, 0.3);
}

.tablet-display {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 0;
  border: 1px solid rgba(15, 28, 37, 0.34);
  background: #0d1620;
  box-shadow:
    inset 0 0 0 0.12rem rgba(255, 255, 255, 0.08),
    inset 0 1.8rem 3rem rgba(255, 255, 255, 0.04);
}

.tablet-display img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
}

.panel {
  content-visibility: auto;
  contain-intrinsic-size: 1px 720px;
  margin: 2.5rem auto;
  padding: 2rem;
  border-radius: var(--radius-xl);
  border: 1px solid var(--surface-line);
  background:
    linear-gradient(180deg, rgba(255, 252, 248, 0.96), rgba(247, 241, 234, 0.94)),
    linear-gradient(135deg, rgba(12, 163, 199, 0.04), rgba(230, 166, 60, 0.03));
  box-shadow: var(--shadow);
}

.section-heading {
  max-width: 42rem;
  margin-bottom: 1.75rem;
}

.story-panel .section-heading {
  max-width: none;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.install-panel .section-heading {
  max-width: 56rem;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.history-panel {
  max-width: min(860px, calc(100vw - 2rem));
}

.history-panel .section-heading {
  max-width: none;
  margin-bottom: 1rem;
  text-align: center;
}

.history-panel > p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
  text-align: center;
}

.history-media {
  margin-top: 1.5rem;
}

.history-media img {
  display: block;
  width: 100%;
  height: auto;
  filter: drop-shadow(0 36px 72px rgba(16, 36, 49, 0.28))
    drop-shadow(0 16px 34px rgba(16, 36, 49, 0.16));
}

.history-callout {
  display: grid;
  justify-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(12, 163, 199, 0.18);
  background:
    linear-gradient(160deg, rgba(12, 163, 199, 0.12), rgba(27, 138, 114, 0.08)),
    rgba(255, 255, 255, 0.72);
}

.history-callout p {
  margin: 0;
  color: #1d3a4b;
  font-size: 1.08rem;
  font-weight: 600;
  line-height: 1.6;
  text-align: center;
}

.section-heading h2 {
  font-size: clamp(2.2rem, 4vw, 4rem);
}

.story-grid,
.install-grid,
.install-stack {
  display: grid;
  gap: 1.25rem;
}

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

.story-card,
.install-card {
  min-width: 0;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(16, 36, 49, 0.08);
  background: rgba(255, 255, 255, 0.58);
}

.story-card h3,
.install-card h3,
.install-card h4 {
  margin-top: 0;
}

.install-card h4 a {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.story-card.accent {
  background:
    linear-gradient(160deg, rgba(230, 166, 60, 0.22), rgba(239, 107, 70, 0.12)),
    rgba(255, 255, 255, 0.62);
}

.install-grid {
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  align-items: start;
}

.install-stack {
  min-width: 0;
  align-content: start;
}

.card-header {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fffdf8;
}

.ubuntu .badge {
  background: linear-gradient(135deg, #ffb066, var(--hot));
}

.arch .badge {
  background: linear-gradient(135deg, #8de8ff, var(--cool));
}

.others .badge {
  background: linear-gradient(135deg, #9adcb6, var(--mint));
}

.others {
  background:
    linear-gradient(160deg, rgba(27, 138, 114, 0.14), rgba(12, 163, 199, 0.08)),
    rgba(255, 255, 255, 0.62);
}

pre {
  overflow-x: auto;
  padding: 1rem 1.1rem;
  border-radius: var(--radius-md);
  background: rgba(16, 36, 49, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #ecf9ff;
}

.callout {
  margin-bottom: 0;
}

@media (max-width: 980px) {
  .topbar,
  .story-grid,
  .install-grid {
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .tablet-shell {
    width: min(100%, 44rem);
  }
}

@media (max-width: 720px) {
  .hero-content {
    padding-top: 2.5rem;
  }

  .hero-copy h1,
  .section-heading h2 {
    line-height: 1;
  }

  .panel {
    padding: 1.25rem;
  }

  .install-card {
    padding: 1.15rem;
  }

  .tablet-shell {
    padding: 0.95rem 1.6rem 0.95rem 0.95rem;
    border-radius: 1.8rem;
  }

  .tablet-shell::before {
    left: 0.22rem;
    width: 0.48rem;
    height: 0.48rem;
  }

  .tablet-shell::after {
    width: 1.1rem;
    height: 1.1rem;
    right: calc((1.6rem - 1.1rem) / 2);
  }

  .nav-links {
    gap: 0.7rem;
  }

  pre {
    max-width: 100%;
    padding: 0.9rem 0.95rem;
  }

  pre code {
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .install-card .button {
    width: 100%;
    max-width: 100%;
  }
}