:root {
  color-scheme: light;
  --ink: #17201f;
  --muted: #68726e;
  --paper: #f4f1e9;
  --paper-deep: #ebe7dc;
  --white: #fbfaf6;
  --line: #d4d5cb;
  --teal: #0c6b63;
  --teal-dark: #07534e;
  --coral: #e56e53;
  --yellow: #f0c667;
  --serif: Georgia, 'Times New Roman', serif;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--paper); }
button, a { font: inherit; }
button { color: inherit; }
button:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid var(--coral); outline-offset: 4px; }
.reading-progress { position: fixed; inset: 0 0 auto; height: 4px; z-index: 20; background: transparent; }
.reading-progress span { display: block; width: 0; height: 100%; background: var(--coral); transform-origin: left; }
.section-wrap { width: min(1180px, calc(100% - 3rem)); margin-inline: auto; }
.site-header { position: absolute; inset: 0 0 auto; z-index: 10; }
.header-inner { width: min(1180px, calc(100% - 3rem)); margin: 0 auto; padding: 1.7rem 0; display: flex; justify-content: space-between; align-items: center; }
.brand { display: flex; gap: .65rem; align-items: center; font-size: .72rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.brand-mark { display: inline-grid; place-items: center; width: 2rem; height: 2rem; color: var(--white); background: var(--teal); font-size: .74rem; letter-spacing: -.08em; }
.brand-name { color: var(--teal-dark); }
.jump-button, .text-button, .back-top { border: 0; padding: .35rem 0; background: transparent; color: var(--teal-dark); font-size: .8rem; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; cursor: pointer; }
.jump-button span, .text-button span, .back-top span { margin-left: .4rem; color: var(--coral); font-size: 1.05rem; }
.hero { min-height: 790px; padding-top: clamp(8.5rem, 16vw, 12.5rem); padding-bottom: 7rem; display: grid; grid-template-columns: minmax(0, 1.04fr) minmax(320px, .96fr); gap: clamp(2rem, 7vw, 7rem); align-items: center; }
.hero-copy { position: relative; z-index: 1; }
.kicker, .section-tag, .section-index { margin: 0; color: var(--coral); font-size: .72rem; font-weight: 850; letter-spacing: .16em; text-transform: uppercase; }
.kicker { display: flex; align-items: center; gap: .7rem; margin-bottom: 1.3rem; }
.kicker-line { display: inline-block; width: 2.9rem; height: 2px; background: var(--coral); }
h1 { max-width: 800px; margin: 0; font-family: var(--serif); font-size: clamp(3.2rem, 7vw, 6.5rem); font-weight: 400; letter-spacing: -.065em; line-height: .94; }
h1 em { color: var(--teal); font-style: italic; }
.hero-intro { max-width: 620px; margin: 2rem 0 0; color: #4d5b56; font-size: clamp(1.1rem, 2vw, 1.34rem); line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1.3rem 1.7rem; align-items: center; margin-top: 2.1rem; }
.primary-link { display: inline-flex; align-items: center; gap: .8rem; padding: .95rem 1.1rem 1rem 1.25rem; color: var(--white); background: var(--teal); font-size: .86rem; font-weight: 800; letter-spacing: .025em; text-decoration: none; box-shadow: 5px 5px 0 var(--yellow); transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease; }
.primary-link span { font-size: 1.15rem; }
.primary-link:hover { background: var(--teal-dark); transform: translate(2px, 2px); box-shadow: 3px 3px 0 var(--yellow); }
.hero-note { display: flex; gap: .65rem; align-items: center; max-width: 480px; margin: 2.5rem 0 0; color: var(--muted); font-size: .79rem; line-height: 1.5; }
.note-dot { flex: 0 0 auto; width: .55rem; height: .55rem; border-radius: 50%; background: var(--coral); }
.hero-visual { position: relative; min-height: 430px; display: grid; place-items: center; }
.orbit { position: absolute; border: 1px solid var(--line); border-radius: 50%; transform: rotate(-22deg); }
.orbit-one { width: 430px; height: 265px; }
.orbit-two { width: 275px; height: 425px; border-color: #bac8c1; transform: rotate(30deg); }
.signal-card { position: relative; width: min(355px, 84%); padding: 1.35rem; background: var(--teal); color: var(--white); transform: rotate(4deg); box-shadow: 16px 17px 0 var(--yellow); }
.signal-top, .signal-footer { display: flex; justify-content: space-between; gap: .5rem; font-size: .62rem; font-weight: 800; letter-spacing: .1em; }
.signal-status { color: #a6ddd2; }
.signal-wave { display: flex; align-items: center; gap: .38rem; height: 105px; margin: 1.7rem 0 1.3rem; padding: 0 .45rem; border-top: 1px solid #4d958e; border-bottom: 1px solid #4d958e; }
.signal-wave i { display: block; width: 2px; background: #a6ddd2; transform-origin: center; }
.signal-wave i:nth-child(1) { height: 22%; } .signal-wave i:nth-child(2) { height: 55%; } .signal-wave i:nth-child(3) { height: 35%; } .signal-wave i:nth-child(4) { height: 82%; } .signal-wave i:nth-child(5) { height: 45%; } .signal-wave i:nth-child(6) { height: 68%; } .signal-wave i:nth-child(7) { height: 27%; } .signal-wave i:nth-child(8) { height: 90%; } .signal-wave i:nth-child(9) { height: 46%; } .signal-wave i:nth-child(10) { height: 63%; } .signal-wave i:nth-child(11) { height: 30%; }
.signal-card p { margin: 0 0 2.5rem; font-family: var(--serif); font-size: 1.8rem; line-height: 1.05; letter-spacing: -.04em; }
.signal-card strong { color: var(--yellow); font-weight: 400; }
.signal-footer { color: #b7dcd5; font-size: .54rem; }
.floating-label { position: absolute; padding: .45rem .6rem; color: var(--teal-dark); background: var(--white); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .64rem; box-shadow: 3px 3px 0 var(--coral); }
.label-top { top: 12%; right: 2%; transform: rotate(7deg); } .label-bottom { bottom: 12%; left: 1%; transform: rotate(-7deg); }
.path-intro { display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(2rem, 8vw, 9rem); padding: 6rem 0 7.4rem; }
.section-heading h2, .faq-heading h2 { margin: .9rem 0 0; font-family: var(--serif); font-size: clamp(2.5rem, 5vw, 4.4rem); font-weight: 400; letter-spacing: -.055em; line-height: .98; }
.large-copy { max-width: 735px; margin: 0; color: #44524e; font-size: clamp(1.2rem, 2.2vw, 1.55rem); line-height: 1.58; }
.path-switcher { display: flex; gap: .5rem; margin-top: 2.1rem; padding-bottom: .8rem; border-bottom: 1px solid var(--line); }
.path-tab { border: 0; padding: .7rem .8rem; background: transparent; color: var(--muted); text-align: left; font-size: .78rem; font-weight: 800; cursor: pointer; }
.path-tab span { display: block; margin-top: .35rem; color: var(--coral); font-family: ui-monospace, monospace; font-size: .66rem; }
.path-tab.is-active { color: var(--teal-dark); background: var(--paper-deep); }
.path-panel { margin-top: 1.5rem; padding: 1.5rem 1.6rem; border-left: 4px solid var(--coral); background: var(--white); }
.panel-label { margin: 0; color: var(--coral); font-size: .65rem; font-weight: 850; letter-spacing: .14em; text-transform: uppercase; }
.path-panel h3 { margin: .65rem 0 .5rem; font-family: var(--serif); font-size: 1.85rem; font-weight: 400; letter-spacing: -.035em; }
.path-panel p:last-child { max-width: 590px; margin: 0; color: var(--muted); line-height: 1.6; }
.section-rule { border-top: 1px solid var(--line); }
.content-section { display: grid; grid-template-columns: 5.2rem 1fr; gap: 2rem; padding-top: 7rem; padding-bottom: 7rem; }
.section-number { color: var(--coral); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .86rem; font-weight: 800; letter-spacing: .08em; }
.section-body { max-width: 850px; }
.section-body h2 { max-width: 790px; margin: .8rem 0 1.8rem; font-family: var(--serif); font-size: clamp(2.5rem, 5.2vw, 4.8rem); font-weight: 400; letter-spacing: -.06em; line-height: .98; }
.section-body p { margin: 0 0 1.45rem; color: #4f5b57; font-size: 1.06rem; line-height: 1.78; }
.section-body .lead-paragraph { max-width: 780px; color: var(--ink); font-size: clamp(1.2rem, 2vw, 1.43rem); line-height: 1.55; }
.section-grid { display: grid; grid-template-columns: minmax(0, 1fr) 220px; gap: 2.5rem; align-items: start; }
.aside-note { padding: 1.1rem; border-top: 2px solid var(--teal); background: var(--paper-deep); }
.aside-note p { margin: 0; font-size: .86rem; line-height: 1.55; } .aside-icon { color: var(--coral); font-size: 1.4rem; }
.numbered-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: .75rem; margin: 2.3rem 0 2rem; }
.numbered-list div { min-height: 150px; padding: 1rem; border-top: 2px solid var(--teal); background: var(--white); }
.numbered-list span, .check-item span { color: var(--coral); font-family: ui-monospace, monospace; font-size: .7rem; font-weight: 800; }
.numbered-list p { margin: 2.3rem 0 0; font-size: .9rem; line-height: 1.45; }
.emphasis-section { padding-top: 8rem; padding-bottom: 8rem; background: var(--teal); color: var(--white); }
.emphasis-section.section-wrap { width: 100%; padding-left: max(1.5rem, calc((100vw - 1180px) / 2)); padding-right: max(1.5rem, calc((100vw - 1180px) / 2)); }
.emphasis-section .section-tag, .emphasis-section .section-number { color: var(--yellow); }
.emphasis-section .section-body p { color: #d4e4df; } .emphasis-section .section-body .lead-paragraph { color: var(--white); }
.quote-block { display: flex; gap: 1rem; align-items: flex-start; max-width: 700px; margin: 2rem 0 2.3rem; padding: 1.2rem 0; border-top: 1px solid #5a9991; border-bottom: 1px solid #5a9991; }
.quote-mark { color: var(--yellow); font-family: var(--serif); font-size: 4rem; line-height: .7; }
.quote-block p { margin: 0 !important; color: var(--yellow) !important; font-family: var(--serif); font-size: clamp(1.7rem, 3.5vw, 2.7rem) !important; line-height: 1.05 !important; letter-spacing: -.04em; }
.checklist-section { padding-bottom: 8rem; }
.check-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: .65rem; margin-top: 2.2rem; }
.check-item { min-height: 188px; padding: 1rem; border-top: 3px solid var(--coral); background: var(--white); }
.check-item h3 { margin: 2.4rem 0 .45rem; font-size: .9rem; }
.check-item p { margin: 0; font-size: .82rem; line-height: 1.5; }
.final-section { padding-bottom: 8rem; }
.final-callout { display: flex; gap: .8rem; align-items: center; margin-top: 2.4rem; padding-top: 1.4rem; border-top: 1px solid var(--line); }
.final-callout p { margin: 0; font-size: .9rem; } .callout-line { width: 2.8rem; height: 2px; flex: 0 0 auto; background: var(--coral); }
.faq-section { padding: 7.5rem 0 7rem; border-top: 1px solid var(--line); display: grid; grid-template-columns: .75fr 1.25fr; gap: clamp(2rem, 8vw, 8rem); }
.faq-list details { padding: 1.35rem 0; border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; justify-content: space-between; gap: 1.5rem; color: var(--teal-dark); font-family: var(--serif); font-size: 1.33rem; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; } .faq-list summary::after { content: '+'; color: var(--coral); font-family: system-ui; font-size: 1.5rem; line-height: 1; } .faq-list details[open] summary::after { content: '−'; }
.faq-list details p { max-width: 720px; margin: 1rem 2.2rem 0 0; color: var(--muted); font-size: .96rem; line-height: 1.7; }
.site-footer { display: flex; justify-content: space-between; gap: 1rem; align-items: center; padding-top: 1.5rem; padding-bottom: 2rem; border-top: 1px solid var(--line); }
.site-footer p { display: flex; gap: .65rem; align-items: center; margin: 0; color: var(--muted); font-size: .73rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.site-footer .brand-mark { width: 1.55rem; height: 1.55rem; font-size: .6rem; }
@media (max-width: 860px) {
  .hero { min-height: auto; grid-template-columns: 1fr; padding-top: 9rem; padding-bottom: 5rem; }
  .hero-visual { min-height: 370px; margin-top: 1rem; }
  .path-intro, .faq-section { grid-template-columns: 1fr; gap: 2rem; }
  .check-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 620px) {
  .section-wrap, .header-inner { width: min(100% - 2rem, 1180px); }
  .brand-name { display: none; }
  .jump-button { font-size: .67rem; }
  .hero { padding-top: 7.5rem; }
  .hero-visual { min-height: 315px; }
  .orbit-one { width: 320px; height: 205px; } .orbit-two { width: 210px; height: 320px; }
  .signal-card { width: min(310px, 88%); }
  .floating-label { font-size: .56rem; }
  .path-intro, .content-section, .faq-section { padding-top: 5rem; padding-bottom: 5rem; }
  .content-section { grid-template-columns: 1fr; gap: 1rem; }
  .section-number { order: -1; }
  .section-grid, .numbered-list { grid-template-columns: 1fr; }
  .numbered-list div { min-height: auto; display: grid; grid-template-columns: 2rem 1fr; gap: .5rem; align-items: start; }
  .numbered-list p { margin: 0; }
  .check-grid { grid-template-columns: repeat(2, 1fr); }
  .emphasis-section.section-wrap { padding-left: 1rem; padding-right: 1rem; }
  .site-footer { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 400px) { .check-grid { grid-template-columns: 1fr; } .hero-actions { align-items: flex-start; flex-direction: column; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; } }