:root {
  --paper-white: #fcfaf5;
  --paper-cream: #f5f1e8;
  --paper-beige: #ebe5da;
  --paper-tan: #dcd5c8;
  --paper-broadsheet: #f8d6b6;
  --paper-canvas: #e1d4c7;

  --ink-deep: #191612;
  --ink-dark: #2d2823;
  --ink-medium: #463f37;

  --pencil-dark: #5a554e;
  --pencil-medium: #827c73;
  --pencil-light: #aaa399;
  --pencil-faint: #c3bcb2;

  --dot-light: #cdc6ba;
  --dot-medium: #b4aca0;

  --biro-bold: #0a32b2;
  --biro-medium: #2848b9;
  --biro-light: #506ec8;
  --biro-faint: #8ca0dc;

  --surface-primary: var(--paper-cream);
  --surface-panel: var(--paper-white);
  --surface-subtle: var(--paper-beige);
  --surface-elevated: var(--paper-tan);
  --text-primary: var(--ink-deep);
  --text-secondary: var(--pencil-dark);
  --text-subtle: var(--pencil-medium);
  --border-default: var(--pencil-light);
  --border-emphasis: var(--ink-medium);
  --border-subtle: color-mix(in srgb, var(--ink-deep) 10%, transparent);
  --accent: var(--biro-bold);
  --accent-hover: var(--biro-medium);
  --text-on-accent: var(--paper-white);

  --shadow-soft: 0 1px 0 color-mix(in srgb, var(--ink-deep) 6%, transparent),
    0 8px 24px color-mix(in srgb, var(--ink-deep) 8%, transparent);

  --space-xl: 2rem;
  --space-l: 1.5rem;
  --space-m: 1rem;
  --space-s: 0.5rem;
  --space-xs: 0.25rem;

  --font-display: 'Fraunces', 'Iowan Old Style', 'Palatino Linotype', Palatino, serif;
  --font-mono: 'Space Mono', ui-monospace, Menlo, Consolas, monospace;
  --font-size-body: 1rem;
  --font-size-s: 0.875rem;
  --font-size-lead: 1.125rem;
  --font-size-h1: clamp(2.75rem, 9vw, 4.5rem);
  --font-size-h2: clamp(1.5rem, 3.5vw, 2rem);
  --line-height: 1.55;
  --max-width: 40rem;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

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

html {
  color-scheme: light;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-mono);
  font-size: var(--font-size-body);
  font-weight: 400;
  line-height: var(--line-height);
  letter-spacing: 0.02em;
  color: var(--text-primary);
  background-color: var(--surface-primary);
  background-image: radial-gradient(
    var(--dot-light) 1.1px,
    transparent 1.1px
  );
  background-size: 20px 20px;
  background-position: 10px 10px;
}

a {
  color: var(--accent);
  text-underline-offset: 0.18em;

  &:hover {
    color: var(--accent-hover);
  }

  &:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
  }
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.shell {
  width: min(100% - 2rem, 52rem);
  margin-inline: auto;
  padding-block: var(--space-xl);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-m);
  flex-wrap: wrap;

  & a {
    text-decoration: none;
    color: var(--text-primary);
  }

  & .navLinks {
    display: flex;
    gap: var(--space-m);
    flex-wrap: wrap;
  }

  & .navLinks a {
    text-decoration: underline;
    text-decoration-color: color-mix(in srgb, var(--accent) 35%, transparent);
    color: var(--text-secondary);

    &:hover {
      color: var(--accent);
      text-decoration-color: var(--accent);
    }
  }
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-s);
  color: var(--text-primary);
  text-decoration: none;

  &:hover {
    text-decoration: none;
    color: var(--text-primary);
  }
}

.brandIcon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-soft);
  background: var(--paper-white);
}

.brandName {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  line-height: 1;
}

.panel {
  background: var(--surface-panel);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: clamp(1.25rem, 4vw, 2.25rem);
}

.hero {
  display: grid;
  gap: var(--space-l);

  & h1 {
    margin: 0;
    font-family: var(--font-display);
    font-size: var(--font-size-h1);
    font-weight: 700;
    line-height: 0.95;
    letter-spacing: -0.03em;
    color: var(--text-primary);
  }

  & .lede {
    margin: 0;
    max-width: var(--max-width);
    font-size: var(--font-size-lead);
    color: var(--text-secondary);
  }
}

.ctaRow {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-s);
  margin-top: var(--space-s);

  &.spaced {
    margin-bottom: var(--space-xl);
  }
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  min-height: 2.75rem;
  padding: 0.55rem 1.15rem;
  border: 1.5px solid var(--border-emphasis);
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--text-on-accent);
  font: inherit;
  font-size: var(--font-size-s);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: translate 120ms ease, box-shadow 120ms ease, background 120ms ease;

  &:hover {
    text-decoration: none;
    color: var(--text-on-accent);
    background: var(--accent-hover);
    translate: 0 -1px;
  }

  &:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
  }

  &.secondary {
    background: var(--surface-panel);
    color: var(--text-primary);

    &:hover {
      color: var(--accent);
      background: var(--paper-cream);
    }
  }

  &[aria-disabled='true'] {
    opacity: 0.55;
    pointer-events: none;
    cursor: default;
  }
}

.features {
  display: grid;
  gap: var(--space-m);
  margin: 0;
  padding: 0;
  list-style: none;

  & li {
    display: grid;
    grid-template-columns: 1.5rem 1fr;
    gap: var(--space-s);
    align-items: start;
  }

  & .tick {
    font-size: 1.1rem;
    line-height: 1.4;
    color: var(--accent);
  }

  & strong {
    font-weight: 700;
    color: var(--text-primary);
  }

  & span {
    color: var(--text-secondary);
  }
}

.prose {
  max-width: var(--max-width);

  & h1 {
    margin: 0 0 var(--space-m);
    font-family: var(--font-display);
    font-size: var(--font-size-h2);
    font-weight: 700;
    letter-spacing: -0.02em;
  }

  & h2 {
    margin: var(--space-xl) 0 var(--space-s);
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.01em;
  }

  & p,
  & ul {
    margin: 0 0 var(--space-m);
    color: var(--text-secondary);
  }

  & ul {
    padding-left: 1.25rem;
  }

  & li + li {
    margin-top: var(--space-xs);
  }

  & .meta {
    color: var(--text-subtle);
    font-size: var(--font-size-s);
  }
}

.footer {
  margin-top: auto;
  padding-top: var(--space-l);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-m);
  justify-content: space-between;
  color: var(--text-subtle);
  font-size: var(--font-size-s);

  & a {
    color: var(--text-secondary);
  }

  & .footerLinks {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-m);
  }
}

/* ── Gallery ─────────────────────────────────────────────────────── */

.gallery {
  --gallery-inset: max(1rem, calc((100vw - 52rem) / 2));
  --gallery-gap: 1.5rem;

  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--space-l);
  padding-block: var(--space-s) var(--space-xl);
}

.galleryHeader {
  width: min(100% - 2rem, 52rem);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-m);
}

.galleryTitle {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--font-size-h2);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.galleryNav {
  display: flex;
  gap: var(--space-xs);
}

.galleryBtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1.5px solid var(--border-emphasis);
  border-radius: var(--radius-sm);
  background: var(--surface-panel);
  color: var(--text-primary);
  font: inherit;
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;

  &:hover {
    color: var(--accent);
    background: var(--paper-cream);
  }

  &:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
  }
}

.galleryTrack {
  display: flex;
  gap: var(--gallery-gap);
  margin: 0;
  padding: 0 var(--gallery-inset) var(--space-s);
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: var(--gallery-inset);
  scrollbar-width: none;

  &::-webkit-scrollbar {
    display: none;
  }
}

.gallerySlide {
  flex: 0 0 min(78vw, 20rem);
  scroll-snap-align: start;
  min-width: 0;
}

.galleryCard {
  display: grid;
  place-items: center;
  height: clamp(28rem, 70vh, 36rem);
  padding: var(--space-l);
  background: var(--card, var(--paper-broadsheet));
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.device {
  position: relative;
  margin: 0;

  & .bezel {
    position: relative;
    background: #1c1916;
    overflow: hidden;
    border-radius: 1.75rem;
    padding: 0.45rem;
    box-shadow: var(--shadow-soft);
  }

  & .screen {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 1.35rem;
    background: var(--paper-cream);
  }
}

.device.phone {
  width: min(100%, 14.5rem);

  & .island {
    position: absolute;
    z-index: 2;
    top: 0.7rem;
    left: 50%;
    translate: -50% 0;
    width: 34%;
    height: 0.7rem;
    background: #000;
    border-radius: 999px;
  }

  & .sideBtn {
    position: absolute;
    background: #1c1916;
    z-index: 0;
    border-radius: 2px;
  }

  & .sideBtn.power {
    right: -0.18rem;
    top: 18%;
    width: 0.18rem;
    height: 12%;
  }

  & .sideBtn.volUp {
    left: -0.18rem;
    top: 22%;
    width: 0.18rem;
    height: 8%;
  }

  & .sideBtn.volDown {
    left: -0.18rem;
    top: 32%;
    width: 0.18rem;
    height: 8%;
  }
}

.galleryEmpty {
  width: min(100% - 2rem, 52rem);
  margin-inline: auto;
  padding: var(--space-xl);
  text-align: center;
  color: var(--text-subtle);
  font-size: var(--font-size-s);
  border: 1px dashed var(--border-default);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--paper-white) 70%, transparent);
}

@media (prefers-color-scheme: dark) {
  :root {
    --surface-primary: #1a1714;
    --surface-panel: #24201c;
    --surface-subtle: #2e2924;
    --surface-elevated: #3a342e;
    --text-primary: #f5f1e8;
    --text-secondary: #c3bcb2;
    --text-subtle: #827c73;
    --border-default: #5a554e;
    --border-emphasis: #c3bcb2;
    --border-subtle: rgb(255 255 255 / 0.1);
    --accent: #8ca0dc;
    --accent-hover: #b4c2eb;
    --text-on-accent: #191612;
    --dot-light: #3a342e;
    --paper-cream: #1a1714;
    --paper-white: #24201c;
    --paper-broadsheet: #3d2f24;
  }

  html {
    color-scheme: dark;
  }
}