:root {
  --ink: #111216;
  --muted: rgba(17, 18, 22, 0.68);
  --navy: #111216;
  --blue: #1769ff;
  --teal: #00a6a6;
  --leaf: #36885a;
  --gold: #ffd84d;
  --coral: #f04444;
  --paper: #f3f0e8;
  --cream: #fcfbf7;
  --sky: #e7efff;
}

body { background: linear-gradient(180deg, #fcfbf7 0%, #eef3ff 52%, #fcfbf7 100%); }
.guide-header { background: rgba(252, 251, 247, 0.88); }
.hero { grid-template-columns: minmax(0, 1fr) minmax(320px, .58fr); }
.hero h1 { font-size: clamp(4rem, 10vw, 8.8rem); line-height: .78; }
.hero h1 span { color: var(--blue); }
.hero .eyebrow, .panel-heading .eyebrow { color: var(--coral); }
.button.primary { background: var(--blue); border-color: var(--blue); }
.button.secondary { background: var(--gold); }

.zero-visual {
  position: relative;
  display: grid;
  min-height: 480px;
  align-content: center;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 8px;
  padding: clamp(24px, 4vw, 40px);
  background: #111216;
  color: white;
  box-shadow: var(--shadow);
}
.zero-visual::before { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px); background-size: 36px 36px; content: ""; }
.axis-label { position: relative; color: rgba(255,255,255,.55); font-size: .76rem; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
.zero-path { position: relative; display: grid; grid-template-columns: auto 1fr auto; gap: 18px; align-items: center; margin: 46px 0; font-size: clamp(4.5rem, 10vw, 8rem); font-weight: 950; line-height: 1; }
.zero-path .destination { color: var(--gold); }
.pulse { height: 4px; background: linear-gradient(90deg, var(--coral), var(--blue), var(--gold)); box-shadow: 0 0 26px var(--blue); }
.many-path { position: relative; display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; color: rgba(255,255,255,.54); font-size: 1.2rem; font-weight: 900; }
.many-path i { height: 1px; background: rgba(255,255,255,.28); }
.zero-visual > p { position: relative; margin: 42px 0 0; color: rgba(255,255,255,.68); line-height: 1.55; }
.zero-visual strong { color: white; }

.snap-strip article:nth-child(1) { border-top: 5px solid var(--blue); }
.snap-strip article:nth-child(2) { border-top: 5px solid var(--coral); }
.snap-strip article:nth-child(3) { border-top: 5px solid var(--gold); }
.snap-strip article:nth-child(4) { border-top: 5px solid var(--teal); }
.idea-card { border-top: 4px solid var(--blue); }
.question-stack { display: grid; gap: 10px; margin-top: 36px; counter-reset: questions; }
.question-stack article { display: grid; grid-template-columns: 52px minmax(0,1fr) 74px; gap: 18px; align-items: center; border: 1px solid var(--soft-line); border-radius: 8px; padding: 18px 22px; background: white; box-shadow: 0 12px 32px rgba(17,18,22,.05); }
.question-stack b { color: var(--coral); font-size: .8rem; }
.question-stack h3 { font-size: 1.15rem; }
.question-stack p { margin: 5px 0 0; color: var(--muted); line-height: 1.45; }
.question-stack article > span { display: grid; min-height: 48px; place-items: center; border-radius: 6px; background: var(--ink); color: var(--gold); font-size: .76rem; font-weight: 950; }
.workout-section { background: linear-gradient(135deg, #111216, #162d62); }

@media (max-width: 680px) {
  .hero { grid-template-columns: 1fr; }
  .hero h1 { font-size: clamp(4rem, 22vw, 6.4rem); }
  .zero-visual { min-height: 380px; }
  .question-stack article { grid-template-columns: 38px minmax(0,1fr); padding: 16px; }
  .question-stack article > span { grid-column: 2; width: 64px; min-height: 34px; }
}