/* ============================================================
   Survival in a Box — "I am alive" demonstration
   Original palette: CicadaWorks violet + EchoHuman teal/amber
   ============================================================ */
:root {
  --deep:      #300950;
  --deep-2:    #24073d;
  --violet:    #7540F5;
  --lilac:     #b89bfa;
  --offwhite:  #faf5ec;
  --paper:     #fffdf8;
  --teal:      #0a5c56;
  --mint:      #86e3cd;
  --amber:     #f7b02c;
  --ink:       #1b0530;
  --ink-soft:  #4b3568;
  --line:      rgba(48, 9, 80, .14);
  --radius:    22px;
  --shadow:    0 18px 50px -18px rgba(27, 5, 48, .35);
  --font-body: "Avenir Next", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, "Cascadia Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--deep);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--amber); color: var(--ink); }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--amber); color: var(--ink);
  padding: .7rem 1.2rem; border-radius: 0 0 12px 0; font-weight: 700;
}
.skip-link:focus { left: 0; }

a { color: inherit; }
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- shared chrome ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem clamp(1.2rem, 4vw, 3rem);
  color: var(--offwhite);
}
.brand {
  display: flex; align-items: center; gap: .65rem;
  font-weight: 800; letter-spacing: .04em; text-decoration: none;
  font-size: .95rem; text-transform: uppercase;
}
.brand-dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 4px rgba(134, 227, 205, .22);
}
.nav { display: flex; gap: 1.4rem; font-size: .92rem; }
.nav a { color: var(--lilac); text-decoration: none; font-weight: 600; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--offwhite); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  color: var(--offwhite);
  padding: clamp(3.5rem, 10vh, 7rem) clamp(1.2rem, 4vw, 3rem) clamp(4rem, 9vh, 6rem);
  background:
    radial-gradient(1100px 500px at 82% -10%, rgba(117, 64, 245, .55), transparent 62%),
    radial-gradient(700px 420px at -8% 110%, rgba(10, 92, 86, .45), transparent 60%),
    linear-gradient(160deg, var(--deep) 0%, var(--deep-2) 100%);
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(rgba(250,245,236,.028) 1px, transparent 1px) 0 0/100% 56px,
    linear-gradient(90deg, rgba(250,245,236,.028) 1px, transparent 1px) 0 0/56px 100%;
  mask-image: radial-gradient(900px 500px at 60% 30%, #000 30%, transparent 75%);
}
.hero-inner { max-width: 1080px; margin: 0 auto; position: relative; }
.kicker {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--font-mono); font-size: .8rem; letter-spacing: .18em;
  text-transform: uppercase; color: var(--mint);
  border: 1px solid rgba(134, 227, 205, .35);
  border-radius: 999px; padding: .45rem 1rem;
  background: rgba(10, 92, 86, .18);
}
.kicker .pulse {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--mint);
}
.hero h1 {
  font-size: clamp(3rem, 9vw, 6.6rem);
  line-height: .98; letter-spacing: -.03em;
  margin: 1.4rem 0 .4rem; font-weight: 800;
}
.hero h1 .alive {
  display: block;
  background: linear-gradient(92deg, var(--amber) 5%, var(--lilac) 55%, var(--mint) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .sub {
  font-size: clamp(1.12rem, 2.6vw, 1.45rem);
  max-width: 34em; color: #e9e0f7; font-weight: 500;
  margin: 1.4rem 0 0;
}
.hero .note {
  margin-top: 2.2rem; font-size: .9rem; color: var(--lilac);
  font-family: var(--font-mono); letter-spacing: .02em;
}

/* ---------- journeys ---------- */
.journeys {
  max-width: 1080px; margin: -3rem auto 0; position: relative; z-index: 2;
  display: grid; gap: 1.2rem; grid-template-columns: 1fr;
  padding: 0 clamp(1.2rem, 4vw, 3rem);
}
@media (min-width: 720px) { .journeys { grid-template-columns: 1fr 1fr; } }
.journey {
  display: block; text-decoration: none;
  background: var(--paper); border-radius: var(--radius);
  padding: 1.8rem 1.7rem 1.5rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
  transition: transform .25s ease, box-shadow .25s ease;
}
.journey:hover { transform: translateY(-4px); box-shadow: 0 26px 60px -18px rgba(27,5,48,.45); }
.journey .tag {
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .16em;
  text-transform: uppercase; font-weight: 700;
}
.journey.guide .tag { color: var(--teal); }
.journey.explore .tag { color: var(--violet); }
.journey h2 { margin: .5rem 0 .4rem; font-size: 1.6rem; letter-spacing: -.02em; }
.journey p { margin: 0; color: var(--ink-soft); }
.journey .go { display: inline-block; margin-top: 1rem; font-weight: 700; }
.journey.guide .go { color: var(--teal); }
.journey.explore .go { color: var(--violet); }
.journey .go::after { content: " →"; }

/* ---------- sections ---------- */
.section { padding: clamp(3rem, 7vh, 5rem) clamp(1.2rem, 4vw, 3rem); }
.section-inner { max-width: 1080px; margin: 0 auto; }
.section.on-dark { color: var(--offwhite); background: var(--deep-2); }
.section.on-light { background: var(--offwhite); }

.eyebrow {
  font-family: var(--font-mono); font-size: .75rem; letter-spacing: .2em;
  text-transform: uppercase; font-weight: 700; color: var(--violet);
}
.on-dark .eyebrow { color: var(--amber); }
.section h2 {
  font-size: clamp(1.9rem, 4.5vw, 2.7rem); letter-spacing: -.02em;
  margin: .5rem 0 1.2rem; line-height: 1.1;
}
.section .lead { font-size: 1.12rem; max-width: 42em; color: inherit; opacity: .88; }

.cards { display: grid; gap: 1rem; grid-template-columns: 1fr; margin-top: 2rem; }
@media (min-width: 640px) { .cards { grid-template-columns: 1fr 1fr; } }
@media (min-width: 960px) { .cards.three { grid-template-columns: repeat(3, 1fr); } }
.card {
  background: var(--paper); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.5rem 1.4rem;
  box-shadow: 0 10px 34px -20px rgba(27,5,48,.3);
}
.on-dark .card { background: rgba(250,245,236,.06); border-color: rgba(250,245,236,.14); box-shadow: none; }
.card .chip {
  display: inline-block; font-family: var(--font-mono);
  font-size: .68rem; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; border-radius: 999px;
  padding: .3rem .75rem; margin-bottom: .8rem;
}
.chip.t { background: rgba(10,92,86,.12); color: var(--teal); }
.chip.v { background: rgba(117,64,245,.13); color: var(--violet); }
.chip.a { background: rgba(247,176,44,.18); color: #8a5d00; }
.on-dark .chip.t { background: rgba(134,227,205,.16); color: var(--mint); }
.on-dark .chip.v { background: rgba(184,155,250,.18); color: var(--lilac); }
.on-dark .chip.a { background: rgba(247,176,44,.16); color: var(--amber); }
.card h3 { margin: 0 0 .4rem; font-size: 1.15rem; letter-spacing: -.01em; }
.card p { margin: 0; font-size: .96rem; color: inherit; opacity: .8; }

/* ---------- spectrum ---------- */
.spectrum { display: grid; gap: .8rem; margin-top: 2rem; }
.spec-row {
  display: grid; grid-template-columns: auto 1fr; gap: 1rem; align-items: start;
  background: rgba(250,245,236,.05); border: 1px solid rgba(250,245,236,.12);
  border-left: 5px solid var(--violet);
  border-radius: 14px; padding: 1.1rem 1.2rem;
}
.spec-row.tier-a { border-left-color: var(--amber); }
.spec-row.tier-b { border-left-color: var(--lilac); }
.spec-row.tier-c { border-left-color: var(--mint); }
.spec-row.tier-d { border-left-color: rgba(250,245,236,.35); }
.spec-row .lvl {
  font-family: var(--font-mono); font-weight: 700; font-size: .8rem;
  color: var(--lilac); padding-top: .2rem; min-width: 2rem;
}
.spec-row h3 { margin: 0 0 .2rem; font-size: 1.02rem; color: var(--offwhite); }
.spec-row p { margin: 0; font-size: .92rem; color: #cfc2e6; }

/* ---------- principle / footer ---------- */
.principle {
  background: linear-gradient(135deg, var(--teal) 0%, #0d4a58 100%);
  color: var(--offwhite); border-radius: var(--radius);
  padding: clamp(2rem, 5vw, 3.2rem);
  box-shadow: var(--shadow);
  font-size: clamp(1.15rem, 2.6vw, 1.5rem); font-weight: 600;
  line-height: 1.5; letter-spacing: -.01em;
}
.principle small {
  display: block; margin-top: 1.2rem; font-size: .8rem;
  font-family: var(--font-mono); letter-spacing: .16em;
  text-transform: uppercase; opacity: .8; font-weight: 700;
}
.honest {
  margin-top: 1.4rem; font-size: .92rem; color: var(--ink-soft);
  border: 1px dashed var(--line); border-radius: 14px;
  padding: 1rem 1.2rem; background: var(--paper);
}
.footer {
  background: var(--deep-2); color: var(--lilac);
  padding: 2.2rem clamp(1.2rem, 4vw, 3rem) 2.6rem;
  font-size: .85rem;
}
.footer-inner { max-width: 1080px; margin: 0 auto; display: flex; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between; }
.footer a { color: var(--mint); }

/* ---------- guide-me steps ---------- */
.steps { counter-reset: step; display: grid; gap: 1rem; margin-top: 2rem; }
.step {
  counter-increment: step;
  background: var(--paper); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.6rem 1.5rem 1.6rem 4.4rem;
  position: relative; box-shadow: 0 10px 34px -22px rgba(27,5,48,.3);
}
.step::before {
  content: counter(step, decimal-leading-zero);
  position: absolute; left: 1.3rem; top: 1.45rem;
  font-family: var(--font-mono); font-weight: 800; font-size: 1.15rem;
  color: var(--violet);
}
.step h3 { margin: 0 0 .35rem; font-size: 1.2rem; letter-spacing: -.01em; }
.step p { margin: 0; color: var(--ink-soft); }
.step ul { margin: .5rem 0 0; padding-left: 1.1rem; color: var(--ink-soft); }
.step li { margin: .25rem 0; }

.next-bar {
  display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 2.5rem;
}
.btn {
  display: inline-block; text-decoration: none; font-weight: 700;
  border-radius: 999px; padding: .85rem 1.7rem;
  transition: transform .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn.solid { background: var(--violet); color: #fff; }
.btn.ghost { border: 2px solid var(--violet); color: var(--violet); }
.on-dark .btn.ghost { border-color: var(--lilac); color: var(--lilac); }

/* ---------- alive indicator ---------- */
@keyframes alive-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.7); opacity: .55; }
}
.pulse.js { animation: alive-pulse 2.6s ease-in-out infinite; }

/* reveals start fully visible; JS only adds motion */
.reveal { opacity: 1; }

/* ---------- small screens ---------- */
@media (max-width: 560px) {
  .nav { gap: .9rem; font-size: .82rem; }
  .journey { padding: 1.4rem 1.2rem; }
  .step { padding-left: 3.7rem; }
}