:root {
  --bg: #212f54;
  --lift: #2d3f66;
  --accent: #b8ff3d;
  --text: #ffffff;
  --muted: #b8c4e0;
  --cork: #c9a66b;
  --note: #f4e9c8;
  --spine-w: 11rem;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
}

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

body {
  margin: 0;
  min-height: 100vh;
}

a {
  color: var(--accent);
}

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

.layout-spine-left {
  display: grid;
  grid-template-columns: var(--spine-w) 1fr;
}

.spine {
  position: sticky;
  top: 0;
  align-self: start;
  min-height: 100vh;
  padding: 1.5rem 1rem 2rem;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(180deg, #1a2644 0%, var(--bg) 100%);
}

.spine-mark {
  display: block;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--text);
  text-decoration: none;
  margin-bottom: 2rem;
}

.spine-nav {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.spine-nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.92rem;
}

.spine-nav a:hover,
.spine-nav a:focus-visible {
  color: var(--accent);
}

.scroll-hint {
  margin-top: auto;
  padding-top: 3rem;
  font-size: 0.8rem;
  color: var(--muted);
  opacity: 0.7;
}

.canvas {
  padding: 2rem clamp(1.25rem, 4vw, 3.5rem) 4rem;
  max-width: 72rem;
}

.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem 2.5rem;
  align-items: center;
  margin-bottom: 4rem;
}

.hero-copy h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.1;
  margin: 0.4rem 0 0.75rem;
}

.hero-copy h1 span {
  color: var(--accent);
}

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

.tagline {
  color: var(--muted);
  max-width: 28ch;
}

.hero-window {
  position: relative;
  padding: 0.75rem;
  border-radius: 1.25rem;
  background: var(--lift);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35), inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.window-chrome {
  position: absolute;
  inset: 0.5rem 0.5rem auto;
  height: 0.35rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.15);
  width: 40%;
  margin: 0 auto;
}

.hero-window img {
  border-radius: 0.85rem;
  width: 100%;
}

.hero-art {
  grid-column: 1 / -1;
  margin: 0;
  border-radius: 1rem;
  overflow: hidden;
  max-height: 22rem;
}

.hero-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.band {
  margin-bottom: 4.5rem;
}

.intro h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0 0 0.5rem;
}

.intro-center {
  text-align: center;
  margin-bottom: 2rem;
}

.intro-right {
  text-align: right;
  margin-bottom: 1.5rem;
}

.intro-left {
  margin-bottom: 1.5rem;
}

.cork-board {
  list-style: none;
  margin: 0;
  padding: 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  background:
    radial-gradient(circle at 20% 30%, rgba(0, 0, 0, 0.08), transparent 40%),
    linear-gradient(145deg, #a67c3d, var(--cork));
  border-radius: 1rem;
  box-shadow: inset 0 0 0 2px rgba(0, 0, 0, 0.15);
}

.note {
  background: var(--note);
  color: #2a2418;
  padding: 1.25rem 1.1rem;
  border-radius: 4px;
  box-shadow: 2px 4px 12px rgba(0, 0, 0, 0.25);
  transform: rotate(var(--tilt, 0deg));
}

.note h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.note p {
  margin: 0;
  font-size: 0.95rem;
}

.note-tilt-a { --tilt: -2.5deg; }
.note-tilt-b { --tilt: 1.8deg; }
.note-tilt-c { --tilt: -1.2deg; }

.device-pair {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
}

.device-pair figure {
  margin: 0;
  max-width: 280px;
  text-align: center;
}

.device-pair img {
  border-radius: 1rem;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}

.device-pair figcaption {
  margin-top: 0.75rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.steps-plain {
  margin: 0 0 2rem;
  padding-left: 1.25rem;
  color: var(--muted);
  max-width: 40rem;
}

.gallery-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.gallery-strip img {
  border-radius: 0.75rem;
  aspect-ratio: 1;
  object-fit: cover;
}

.legal-summary {
  font-size: 1.05rem;
  max-width: 42rem;
}

.legal-inline details {
  margin-top: 1rem;
  background: var(--lift);
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
}

.legal-inline summary {
  cursor: pointer;
  color: var(--accent);
  font-weight: 600;
}

.legal-body {
  margin-top: 0.75rem;
  color: var(--muted);
}

.support-prose {
  max-width: 36rem;
}

.support-prose p {
  color: var(--muted);
}

.site-foot {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
  font-size: 0.85rem;
}

@media (max-width: 860px) {
  .layout-spine-left {
    grid-template-columns: 1fr;
  }

  .spine {
    position: relative;
    min-height: auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .spine-nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
  }

  .scroll-hint {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .intro-right {
    text-align: left;
  }

  .gallery-strip {
    grid-template-columns: 1fr;
  }
}