/* ─────────────────────────────────────────────
   LifeShift 360 — Brand stylesheet
   Shared tokens, nav, footer, buttons, type
   ───────────────────────────────────────────── */
:root {
  --ember: #F25C1F;
  --ember-deep: #C9410F;
  --ember-glow: #FF8A3D;
  --sun: #FFC85C;
  --obsidian: #0E0E0F;
  --charcoal: #1A1A1C;
  --slate: #3A3A3D;
  --ash: #6B6B6F;
  --fog: #B8B6B0;
  --sand: #E9E2D6;
  --summit: #F7F4EE;
  --umber: #6B3A1F;
  --clay: #B6532E;
  --font-sans: 'Geist', system-ui, sans-serif;
  --font-serif: 'Instrument Serif', Georgia, serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --gut: clamp(20px, 4vw, 56px);
  --maxw: 1320px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--summit);
  color: var(--obsidian);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
  overflow-x: hidden;
}
::selection { background: var(--ember); color: var(--summit); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gut); }

.label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ember);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.label::before { content: ""; width: 24px; height: 1px; background: currentColor; }
.label.on-dark { color: var(--ember-glow); }

h1, h2, h3, h4 { font-weight: 500; letter-spacing: -0.02em; line-height: 1.05; }
em.serif { font-family: var(--font-serif); font-style: italic; font-weight: 400; letter-spacing: -0.01em; color: var(--ember); }
p { font-size: 17px; color: var(--slate); max-width: 62ch; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px;
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.15em; text-transform: uppercase;
  border: 1px solid currentColor;
  border-radius: 100px;
  background: transparent;
  cursor: pointer;
  transition: background 0.18s, color 0.18s, transform 0.18s, border-color 0.18s;
  white-space: nowrap;
}
.btn .arr { transition: transform 0.2s; }
.btn:hover .arr { transform: translateX(3px); }
.btn.primary { background: var(--ember); color: var(--summit); border-color: var(--ember); }
.btn.primary:hover { background: var(--ember-deep); border-color: var(--ember-deep); }
.btn.ghost { color: inherit; border-color: rgba(14,14,15,0.18); }
.btn.ghost:hover { background: var(--obsidian); color: var(--summit); border-color: var(--obsidian); }
.btn.ghost-light { color: var(--summit); border-color: rgba(255,255,255,0.25); }
.btn.ghost-light:hover { background: var(--summit); color: var(--obsidian); border-color: var(--summit); }

.meta-row {
  display: flex; gap: 20px; align-items: center; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--ash);
}
.meta-row .dot { width: 4px; height: 4px; border-radius: 50%; background: var(--ember); display: inline-block; }

/* ──────────── NAV ──────────── */
.nav-wrap {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background 0.25s, border-color 0.25s, color 0.25s;
  border-bottom: 1px solid transparent;
  color: var(--obsidian);
  background: rgba(247,244,238,0.86);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border-bottom-color: rgba(14,14,15,0.08);
}
.nav-wrap.on-dark {
  background: rgba(14,14,15,0.7);
  border-bottom-color: rgba(255,255,255,0.08);
  color: var(--summit);
}
.nav {
  max-width: var(--maxw); margin: 0 auto; padding: 16px var(--gut);
  display: flex; align-items: center; justify-content: space-between; gap: 32px;
}
.nav-brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 17px; letter-spacing: -0.01em; color: inherit; }
.nav-brand img { height: 56px; width: auto; }
.nav-wrap .mark-light { display: none; }
.nav-wrap .mark-dark  { display: block; }
.nav-wrap.on-dark .mark-light { display: block; }
.nav-wrap.on-dark .mark-dark  { display: none; }
.nav-links { display: flex; align-items: center; gap: 28px; font-size: 14px; }
.nav-links a { display: inline-flex; align-items: center; gap: 6px; color: var(--slate); padding: 8px 0; transition: color 0.2s; position: relative; }
.nav-links a:hover { color: var(--obsidian); }
.nav-links a.on { color: var(--obsidian); }
.nav-links a.on::after { content: ""; position: absolute; left: 0; right: 0; bottom: 2px; height: 1px; background: var(--ember); }
.nav-wrap.on-dark .nav-links a { color: rgba(255,255,255,0.78); }
.nav-wrap.on-dark .nav-links a:hover { color: var(--summit); }
.nav-wrap.on-dark .nav-links a.on { color: var(--summit); }
.nav-links .pill { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.15em; padding: 3px 6px; border-radius: 100px; background: var(--ember); color: var(--summit); text-transform: uppercase; }
.nav-cta { display: flex; gap: 10px; align-items: center; }
@media (max-width: 880px) { .nav-links { display: none; } }

/* ──────────── FOOTER ──────────── */
.footer { background: #000000; color: var(--summit); padding: 80px var(--gut) 32px; border-top: 1px solid rgba(255,255,255,0.06); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; max-width: var(--maxw); margin: 0 auto; border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 60px; margin-bottom: 32px; }
.footer h4 { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--fog); margin-bottom: 20px; }
.footer ul { list-style: none; }
.footer-mark { margin-top: 24px; }
.footer-mark img { width: 88px; height: auto; opacity: 0.9; }
.footer li { padding: 6px 0; }
.footer a { color: var(--fog); font-size: 14px; }
.footer a:hover { color: var(--ember); }
.footer-tag { font-family: var(--font-serif); font-style: italic; font-size: clamp(36px, 5vw, 64px); line-height: 1; letter-spacing: -0.02em; margin-bottom: 24px; max-width: 14ch; color: #ffffff; margin-top: 24px; }
.footer-tag em { color: var(--ember); font-style: italic; }
.footer-bottom { max-width: var(--maxw); margin: 0 auto; display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.15em; color: var(--ash); text-transform: uppercase; flex-wrap: wrap; gap: 16px; }
.footer-stamp { max-width: var(--maxw); margin: 16px auto 32px; padding: 16px 0 40px; border-bottom: 1px solid rgba(255,255,255,0.06); display: flex; justify-content: center; }
.footer-stamp img { width: 100%; max-width: 1200px; height: auto; opacity: 0.95; }
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 500px) { .footer-grid { grid-template-columns: 1fr; } }

/* ──────────── PAGE HEADER (sub-page hero) ──────────── */
.page-hero {
  background: var(--obsidian);
  color: var(--summit);
  position: relative;
  overflow: hidden;
  padding: 180px var(--gut) 100px;
}
.page-hero .hero-grid-bg { position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 80px 80px; pointer-events: none; }
.page-hero .hero-glow { position: absolute; width: 900px; height: 900px; border-radius: 50%;
  background: radial-gradient(circle, rgba(242,92,31,0.35), transparent 60%);
  top: -300px; right: -300px; filter: blur(60px); pointer-events: none; }
.page-hero .wrap { position: relative; z-index: 2; }
.page-hero .crumb { display: flex; align-items: center; gap: 12px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--fog); margin-bottom: 28px; }
.page-hero .crumb a { color: var(--fog); transition: color 0.2s; }
.page-hero .crumb a:hover { color: var(--ember-glow); }
.page-hero .crumb .sep { width: 14px; height: 1px; background: var(--ash); }
.page-hero .crumb .here { color: var(--ember-glow); }
.page-hero .label { color: var(--ember-glow); margin-bottom: 24px; }
.page-hero h1 {
  font-size: clamp(56px, 10vw, 144px);
  font-weight: 300;
  line-height: 0.95;
  letter-spacing: -0.045em;
  max-width: 14ch;
}
.page-hero h1 em { font-family: var(--font-serif); font-style: italic; color: var(--ember); font-weight: 400; }
.page-hero .deck { font-size: clamp(17px, 1.5vw, 21px); color: var(--fog); max-width: 56ch; line-height: 1.5; margin-top: 28px; }
.page-hero .stamps {
  display: flex; gap: 32px; flex-wrap: wrap;
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 56px; padding-top: 32px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.15em; text-transform: uppercase; color: var(--fog);
}
.page-hero .stamps .stamp .k { color: var(--ember-glow); display: block; margin-bottom: 6px; }
.page-hero .stamps .stamp .v { color: var(--summit); font-size: 13px; letter-spacing: 0.08em; }

/* Reveal */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s cubic-bezier(.22,.61,.36,1), transform 0.7s cubic-bezier(.22,.61,.36,1); }
.reveal.in { opacity: 1; transform: none; }