/* Brand book page — extends brand.css with book-specific layout */

.nav {
  position: absolute;
  z-index: 2;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 82px;
  color: var(--cloud);
}
.nav__brand {
  display: flex;
  align-items: center;
  padding: 7px 10px;
  border-radius: 10px;
  background: var(--ivory);
}
.nav__brand img,
.nav__brand svg { width: 118px; height: auto; }
.nav__meta {
  color: rgba(255, 255, 255, .62);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.nav__back {
  color: rgba(255, 255, 255, .72);
  font-size: .84rem;
  font-weight: 600;
}
.nav__back:hover { color: var(--cloud); }

.hero { min-height: 720px; display: grid; place-items: center; overflow: hidden; position: relative; }
.hero::before {
  content: "";
  position: absolute;
  width: 700px;
  height: 700px;
  top: -350px;
  right: -210px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .12);
  box-shadow: 0 0 0 72px rgba(255, 255, 255, .035), 0 0 0 144px rgba(255, 255, 255, .018);
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  align-items: end;
  gap: 64px;
  padding-top: 108px;
  padding-bottom: 90px;
  position: relative;
}
.hero__mark {
  display: grid;
  place-items: center;
  width: min(100%, 270px);
  aspect-ratio: 1;
  justify-self: end;
  border-radius: 38%;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .13);
  box-shadow: inset 0 1px rgba(255, 255, 255, .12);
}
.hero__mark img,
.hero__mark svg { width: 70%; }
.hero__tagline {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 48px;
  color: var(--amber);
  font-size: .86rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.hero__tagline::before { content: ""; width: 36px; height: 1px; background: var(--coral); }

.beliefs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 58px; }
.belief {
  padding: 24px 22px;
  min-height: 180px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, .62);
}
.belief__number { color: var(--coral); font-size: .75rem; font-weight: 800; letter-spacing: .1em; }
.belief p { margin: 8px 0 0; color: var(--slate); font-size: .92rem; }

.manifesto { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.quote { margin: 0; font-size: clamp(2.3rem, 4vw, 3.8rem); line-height: 1.03; letter-spacing: -.055em; }
.quote em { color: var(--amber); font-style: normal; }
.principles { display: grid; gap: 18px; }
.principle {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, .13);
}
.principle__glyph {
  color: var(--coral);
  font-family: "DM Serif Display", Georgia, serif;
  font-size: 1.9rem;
  line-height: .8;
}
.principle p { margin: 4px 0 0; color: rgba(255, 255, 255, .62); font-size: .91rem; }

.route-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 24px; margin-top: 54px; }
.route { overflow: hidden; border: 1px solid var(--line); border-radius: 24px; background: var(--cloud); }
.route__visual { display: grid; min-height: 320px; place-items: center; overflow: hidden; background: var(--ivory); }
.route__visual img,
.route__visual svg { width: 100%; height: 100%; object-fit: cover; }
.route__copy { padding: 28px; }
.route__badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  margin-bottom: 14px;
  border-radius: 99px;
  color: var(--indigo);
  background: var(--mist);
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.route__copy p { margin: 0; color: var(--slate); font-size: .94rem; }
.route__list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 20px; }
.route__list span {
  padding: 8px;
  color: var(--slate);
  border-radius: 10px;
  background: #faf9fe;
  font-size: .72rem;
  font-weight: 700;
  text-align: center;
}
.decision {
  margin-top: 24px;
  padding: 20px 22px;
  border-radius: 16px;
  color: #584a6c;
  background: #fff4ec;
  font-size: .92rem;
}
.decision strong { color: var(--indigo); }

.palette { display: grid; grid-template-columns: 1.35fr repeat(5, 1fr); gap: 12px; margin-top: 52px; }
.swatch {
  overflow: hidden;
  min-height: 235px;
  border-radius: 18px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 18px;
}
.swatch small { display: block; margin-top: 2px; font-size: .72rem; letter-spacing: .03em; opacity: .78; }
.swatch--indigo { color: white; background: var(--indigo); }
.swatch--ink { color: white; background: var(--ink); }
.swatch--coral { color: var(--ink); background: var(--coral); }
.swatch--amber { color: var(--ink); background: var(--amber); }
.swatch--mist { color: var(--indigo); background: var(--mist); border: 1px solid #e4e0ed; }
.swatch--cloud { color: var(--indigo); background: var(--cloud); border: 1px solid #e4e0ed; }
.palette-note { margin-top: 24px; color: var(--slate); font-size: .9rem; }
.palette-note b { color: var(--indigo); }

.type-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 50px; }
.type-card { padding: 32px; border-radius: 20px; background: rgba(255, 255, 255, .7); border: 1px solid var(--line); }
.type-card h3 { color: var(--coral); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; }
.type-specimen--display {
  margin: 28px 0 10px;
  font-family: "DM Serif Display", Georgia, serif;
  font-size: clamp(2.9rem, 5vw, 5.3rem);
  line-height: .94;
  letter-spacing: -.06em;
}
.type-specimen--body { margin: 28px 0 10px; max-width: 460px; font-size: 1.05rem; line-height: 1.6; }
.type-card p { margin: 0; color: var(--slate); font-size: .88rem; }

.voice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 50px; }
.voice-card { padding: 30px; border-radius: 20px; background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .12); }
.voice-card p { margin: 12px 0 0; color: rgba(255, 255, 255, .62); font-size: .92rem; }
.voice-card strong { color: var(--amber); }
.voice-example {
  margin-top: 16px;
  padding: 14px;
  color: #e9e3fa;
  border-radius: 10px;
  background: rgba(0, 0, 0, .2);
  font-size: .89rem;
}

.favicon-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: center; }
.favicon-stage { display: grid; min-height: 320px; place-items: center; border-radius: 26px; background: var(--ivory); }
.favicon-stage img,
.favicon-stage svg { width: 170px; height: 170px; }
.favicon-copy p { color: rgba(255, 255, 255, .66); }
.favicon-sizes { display: flex; align-items: end; gap: 20px; margin-top: 28px; }
.favicon-size { display: grid; place-items: center; gap: 9px; color: rgba(255, 255, 255, .54); font-size: .7rem; }
.favicon-size img,
.favicon-size svg { border-radius: 30%; }

.usage-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 48px; }
.usage { padding: 25px; border-radius: 18px; background: #fff; border: 1px solid var(--line); }
.usage__symbol {
  display: grid;
  place-items: center;
  height: 70px;
  margin-bottom: 20px;
  border-radius: 10px;
  color: var(--indigo);
  background: var(--mist);
  font-size: 1.5rem;
}
.usage p { margin: 8px 0 0; color: var(--slate); font-size: .86rem; }

@media (max-width: 820px) {
  .hero { min-height: 650px; }
  .hero__grid, .manifesto, .system, .favicon-layout { grid-template-columns: 1fr; gap: 36px; }
  .hero__mark { justify-self: start; width: 150px; }
  .beliefs { grid-template-columns: 1fr 1fr; }
  .route-grid, .type-grid, .voice-grid { grid-template-columns: 1fr; }
  .palette { grid-template-columns: repeat(3, 1fr); }
  .swatch:first-child { grid-column: span 3; }
  .usage-grid { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .nav__meta { display: none; }
  .beliefs { grid-template-columns: 1fr; }
  .route__list { grid-template-columns: 1fr; }
  .palette { grid-template-columns: 1fr 1fr; }
  .swatch:first-child { grid-column: span 2; }
}