:root {
  --bg: #0B0E1E;
  --navy: #12172D;
  --slate: #1E233C;
  --slate-raised: #282E4B;
  --coral: #FF6B6B;
  --sky: #5EABF9;
  --lavender: #B388F5;
  --gold: #FFD166;
  --mint: #4ECDC4;
  --snow: #F8FAFF;
  --mist: #D1D8E8;
  --fog: #949EB5;
  --ash: #6B758C;
  --spine-width: 11rem;
  --content-max: 68rem;
  --radius: 1.25rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "DM Sans", system-ui, sans-serif;
  background: var(--bg);
  color: var(--snow);
  line-height: 1.6;
}

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

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

a:hover { color: var(--mint); }

.page-shell {
  min-height: 100vh;
}

.spine-nav {
  position: fixed;
  left: 0;
  bottom: 0;
  width: var(--spine-width);
  height: 100vh;
  padding: 2rem 1.25rem;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, var(--navy) 0%, var(--bg) 100%);
  display: flex;
  flex-direction: column;
  gap: 2rem;
  z-index: 10;
}

.content-rail {
  min-width: 0;
  margin-left: var(--spine-width);
}

.spine-brand {
  font-family: "Instrument Serif", Georgia, serif;
  font-size: 1.5rem;
  color: var(--snow);
  letter-spacing: 0.02em;
}

.spine-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.spine-links a {
  color: var(--fog);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.2s ease, transform 0.2s ease;
  display: inline-block;
}

.spine-links a:hover,
.spine-links a:focus-visible {
  color: var(--coral);
  transform: translateX(4px);
}

.spine-accent {
  margin-top: auto;
  width: 3px;
  height: 5rem;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--coral), var(--sky));
}

.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
}

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

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(11, 14, 30, 0.92) 0%, rgba(11, 14, 30, 0.55) 45%, rgba(11, 14, 30, 0.25) 100%),
    linear-gradient(0deg, rgba(11, 14, 30, 0.95) 0%, transparent 55%);
}

.hero-copy {
  position: relative;
  z-index: 1;
  padding: 4rem clamp(1.5rem, 4vw, 4rem) 4.5rem;
  max-width: 42rem;
}

.hero-eyebrow {
  margin: 0 0 0.75rem;
  color: var(--coral);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.hero-line1 {
  font-family: "Instrument Serif", Georgia, serif;
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  line-height: 1.05;
}

.hero-line2 {
  font-size: clamp(1.35rem, 3vw, 2rem);
  font-weight: 500;
  color: var(--mist);
}

.hero-tagline {
  margin: 0;
  max-width: 34rem;
  color: var(--fog);
  font-size: 1.05rem;
}

.section {
  padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 4vw, 4rem);
}

.section-intro {
  max-width: var(--content-max);
  margin-bottom: 2.5rem;
}

.section-intro h2 {
  margin: 0 0 0.5rem;
  font-family: "Instrument Serif", Georgia, serif;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
}

.section-intro p {
  margin: 0;
  color: var(--fog);
  max-width: 38rem;
}

.zigzag {
  background: linear-gradient(180deg, var(--bg) 0%, var(--navy) 50%, var(--bg) 100%);
}

.zigzag-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
  max-width: var(--content-max);
  margin: 0 auto 2.5rem;
}

.zigzag-row.reverse .zigzag-media { order: 2; }
.zigzag-row.reverse .zigzag-text { order: 1; }

.zigzag-media img {
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

.zigzag-text h3 {
  margin: 0 0 0.75rem;
  font-size: 1.45rem;
  color: var(--snow);
}

.zigzag-text p {
  margin: 0;
  color: var(--fog);
}

.zigzag-text.solo {
  grid-column: 1 / -1;
  padding: 1.5rem 1.75rem;
  border-left: 3px solid var(--lavender);
  background: rgba(40, 46, 75, 0.55);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.mosaic-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-auto-rows: minmax(140px, auto);
  gap: 1rem;
  max-width: var(--content-max);
}

.mosaic-tile {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.mosaic-tile.large {
  grid-column: span 4;
  grid-row: span 2;
}

.mosaic-tile.wide {
  grid-column: span 6;
}

.mosaic-tile figcaption {
  font-size: 0.88rem;
  color: var(--fog);
}

.device-frame {
  border-radius: calc(var(--radius) + 4px);
  padding: 0.65rem;
  background: var(--slate-raised);
  border: 1px solid rgba(255, 255, 255, 0.08);
  min-height: 220px;
}

.device-frame.small { min-height: 180px; }
.device-frame.wide-frame { min-height: 200px; }

.screen-placeholder {
  width: 100%;
  height: 100%;
  min-height: inherit;
  border-radius: calc(var(--radius) - 4px);
  background: var(--slate);
}

.screen-tower {
  background:
    linear-gradient(135deg, rgba(255, 107, 107, 0.35), transparent 55%),
    linear-gradient(180deg, var(--navy), var(--bg));
}

.screen-buzz {
  background:
    linear-gradient(160deg, rgba(94, 171, 249, 0.45), transparent 60%),
    linear-gradient(180deg, var(--slate), var(--bg));
}

.screen-keys {
  background:
    linear-gradient(140deg, rgba(179, 136, 245, 0.45), transparent 55%),
    linear-gradient(180deg, var(--slate), var(--bg));
}

.screen-chronicle {
  background:
    linear-gradient(90deg, rgba(255, 209, 102, 0.3), rgba(78, 205, 196, 0.25)),
    linear-gradient(180deg, var(--navy), var(--bg));
  min-height: 160px;
}

.legal-band {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  padding: clamp(2.5rem, 5vw, 4rem) clamp(1.5rem, 4vw, 4rem);
  background: var(--navy);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.legal-panel {
  padding: 1.75rem;
  background: rgba(11, 14, 30, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
}

.legal-panel h2 {
  margin: 0 0 0.75rem;
  font-size: 1.35rem;
}

.legal-panel p {
  margin: 0 0 0.85rem;
  color: var(--fog);
  font-size: 0.95rem;
}

.legal-effective {
  color: var(--mist) !important;
  font-size: 0.82rem !important;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.mailto-link {
  font-weight: 600;
  word-break: break-word;
}

.legal-foot {
  margin-top: 1.25rem !important;
  font-size: 0.85rem !important;
}

.site-footer {
  padding: 1.5rem clamp(1.5rem, 4vw, 4rem) 2.5rem;
  color: var(--ash);
  font-size: 0.85rem;
}

@media (max-width: 960px) {
  .spine-nav {
    position: relative;
    width: 100%;
    height: auto;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .content-rail {
    margin-left: 0;
  }

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

  .spine-accent { display: none; }

  .zigzag-row,
  .zigzag-row.reverse {
    grid-template-columns: 1fr;
  }

  .zigzag-row.reverse .zigzag-media,
  .zigzag-row.reverse .zigzag-text {
    order: unset;
  }

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

  .mosaic-tile.large,
  .mosaic-tile.wide {
    grid-column: span 1;
    grid-row: span 1;
  }

  .legal-band {
    grid-template-columns: 1fr;
  }
}