:root {
  --bg: #f8fbff;
  --paper: #eaf4ff;
  --navy: #102a55;
  --ink: #172638;
  --electric: #0866ff;
  --sunshine: #ffd332;
  --muted: rgba(16, 42, 85, 0.72);
  --card: #fff;
  --radius: 18px;
  --font: "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  --mono: "SF Mono", "Menlo", monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
}

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

.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 100;
  background: var(--sunshine);
  padding: 0.5rem 1rem;
}

.grid-paper {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(16, 42, 85, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 42, 85, 0.06) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}

.margin-dots {
  position: fixed;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  z-index: 50;
}

.margin-dots a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.margin-dots a::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--electric);
  background: transparent;
  transition: background 0.2s, transform 0.2s;
}

.margin-dots a.is-active::before,
.margin-dots a:hover::before {
  background: var(--sunshine);
  transform: scale(1.15);
}

.margin-dots span {
  opacity: 0;
  transform: translateX(6px);
  transition: opacity 0.2s, transform 0.2s;
}

.margin-dots a:hover span,
.margin-dots a:focus span {
  opacity: 1;
  transform: translateX(0);
}

@media (max-width: 720px) {
  .margin-dots {
    right: 0.65rem;
    gap: 0.55rem;
  }
  .margin-dots span {
    display: none;
  }
}

.wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.intro-left h2 {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  color: var(--navy);
  margin: 0 0 0.5rem;
}

.intro-left .lede {
  max-width: 42rem;
  color: var(--muted);
  margin: 0 0 2rem;
}

.hero {
  position: relative;
  padding: 4rem 1.5rem 3rem;
  min-height: 88vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-inner {
  position: relative;
  max-width: 720px;
  text-align: center;
  z-index: 1;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--electric);
  margin: 0 0 0.75rem;
}

.hero h1 {
  font-size: clamp(2.8rem, 9vw, 4.2rem);
  line-height: 1.05;
  color: var(--navy);
  margin: 0 0 1rem;
}

.tagline {
  font-size: 1.12rem;
  color: var(--muted);
  margin: 0 auto 2rem;
  max-width: 34rem;
}

.hero-art {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(16, 42, 85, 0.14);
  border: 3px solid var(--sunshine);
}

.hero-art img {
  display: block;
  width: 100%;
  height: auto;
}

.band {
  padding: 4rem 1.5rem;
}

.features {
  background: linear-gradient(180deg, var(--bg) 0%, var(--paper) 100%);
}

.bento {
  max-width: 980px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.tile {
  background: var(--card);
  border-radius: var(--radius);
  padding: 1.35rem 1.25rem;
  border: 1px solid rgba(8, 102, 255, 0.12);
  box-shadow: 0 8px 24px rgba(16, 42, 85, 0.06);
}

.tile h3 {
  margin: 0 0 0.5rem;
  color: var(--navy);
  font-size: 1.05rem;
}

.tile p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
}

.tile-wide {
  grid-column: span 2;
}

.tile-tall {
  grid-row: span 2;
}

.tile-accent {
  background: linear-gradient(135deg, var(--electric), #38a8ff);
  color: #fff;
  border-color: transparent;
}

.tile-accent h3,
.tile-accent p {
  color: #fff;
}

.gallery-row {
  max-width: 980px;
  margin: 2rem auto 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.gallery-row img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 2px solid rgba(16, 42, 85, 0.08);
}

.device-pair {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: end;
}

.device-pair figure {
  margin: 0;
  text-align: center;
}

.device-pair img {
  width: min(100%, 280px);
  height: auto;
  border-radius: 28px;
  box-shadow: 0 20px 50px rgba(16, 42, 85, 0.18);
  border: 4px solid var(--navy);
}

.device-pair figcaption {
  margin-top: 0.75rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--electric);
}

.about {
  background: var(--navy);
  color: var(--paper);
}

.about h2 {
  color: #fff;
}

.about p {
  max-width: 40rem;
  color: rgba(234, 244, 255, 0.88);
}

.footer-sheet {
  background: #081225;
  color: #eaf4ff;
  padding: 3rem 1.5rem 2rem;
}

.sheet-block {
  max-width: 720px;
  margin: 0 auto 2.5rem;
  padding: 1.75rem;
  background: rgba(18, 37, 68, 0.85);
  border-radius: var(--radius);
  border: 1px solid rgba(56, 168, 255, 0.2);
}

.sheet-block h2 {
  margin-top: 0;
  color: var(--sunshine);
}

.sheet-block h3 {
  color: #fff;
  font-size: 1rem;
  margin-top: 1.25rem;
}

.sheet-block a {
  color: #7dd3fc;
}

.copy {
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.65;
  margin: 2rem 0 0;
}

@media (max-width: 800px) {
  .bento {
    grid-template-columns: 1fr;
  }
  .tile-wide,
  .tile-tall {
    grid-column: span 1;
    grid-row: span 1;
  }
  .gallery-row,
  .device-pair {
    grid-template-columns: 1fr;
  }
}