:root { --ink: #1d2720; --paper: #f4f1e8; --sage: #d8e0c5; --orange: #e6673e; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: Arial, "PingFang SC", "Microsoft YaHei", sans-serif; }
a { color: inherit; text-decoration: none; }
.hero { min-height: 100svh; position: relative; overflow: hidden; padding: 0 5vw 4vh; background: var(--paper); }
.hero::before { content: ""; position: absolute; inset: 0; opacity: .25; pointer-events: none; background-image: radial-gradient(#1d2720 0.55px, transparent 0.55px); background-size: 5px 5px; }
.nav { height: 108px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(29,39,32,.22); position: relative; z-index: 5; }
.brand { display: flex; align-items: center; gap: 12px; font-size: 20px; font-weight: 700; letter-spacing: .12em; }
.brand-mark { width: 21px; height: 21px; border: 2px solid var(--ink); border-radius: 50% 50% 46% 54%; position: relative; }
.brand-mark::after { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--orange); position: absolute; right: -3px; top: 1px; }
.nav-links { display: flex; align-items: center; gap: 36px; font-size: 14px; }
.nav-links a:not(.nav-cta) { opacity: .76; transition: opacity .2s; }
.nav-links a:hover { opacity: 1; }
.nav-cta { padding: 12px 22px; border: 1px solid var(--ink); border-radius: 999px; }
.hero-content { position: relative; z-index: 2; padding-top: clamp(90px, 15vh, 160px); max-width: 720px; }
.eyebrow { margin: 0 0 22px; font: 700 11px/1.3 monospace; letter-spacing: .25em; color: #66735e; }
h1 { margin: 0; font-family: Georgia, "Songti SC", serif; font-size: clamp(68px, 8.6vw, 132px); line-height: .91; letter-spacing: -.065em; font-weight: 400; }
h1 span { color: var(--orange); font-style: italic; margin-left: .4em; white-space: nowrap; }
.hero-copy { margin: 34px 0 30px; font-size: 16px; line-height: 1.9; color: #536057; }
.primary-button { display: inline-flex; align-items: center; gap: 46px; background: var(--ink); color: var(--paper); padding: 17px 20px 17px 24px; font-size: 14px; border-radius: 2px; transition: transform .2s, background .2s; }
.primary-button:hover { transform: translateY(-2px); background: #314136; }
.primary-button span { font-size: 18px; }
.orbit { position: absolute; width: min(43vw, 640px); aspect-ratio: 1; right: -3vw; top: 18vh; }
.orbit-ring { position: absolute; inset: 10%; border: 1px solid rgba(29,39,32,.18); border-radius: 50%; }
.orbit-ring-two { inset: 23%; border-style: dashed; animation: spin 30s linear infinite; }
.sun { position: absolute; width: 47%; aspect-ratio: 1; border-radius: 50%; top: 26%; left: 26%; background: var(--sage); box-shadow: inset -28px -24px 60px rgba(111,128,92,.16); animation: breathe 7s ease-in-out infinite; }
.sun::after { content: ""; position: absolute; width: 12px; height: 12px; background: var(--orange); border-radius: 50%; top: -18%; left: 48%; }
.orbit-note { position: absolute; right: 0; top: 44%; transform: rotate(90deg); font: 10px monospace; letter-spacing: .2em; }
.scroll-hint { position: absolute; bottom: 4vh; right: 5vw; margin: 0; display: flex; align-items: center; gap: 12px; font-size: 11px; letter-spacing: .12em; color: #66735e; }
.scroll-hint span { width: 44px; height: 1px; background: currentColor; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes breathe { 0%,100% { transform: scale(.94); } 50% { transform: scale(1.04); } }
.manifesto { min-height: 720px; padding: 120px 8vw; display: grid; grid-template-columns: 1fr 3fr 1fr; gap: 40px; align-items: center; position: relative; }
.section-number { align-self: start; font: 700 10px monospace; letter-spacing: .16em; color: #71806b; text-transform: uppercase; }
.manifesto-copy p { margin: 0 0 22px; font-size: 15px; color: #758074; }
.manifesto h2, .practice h2, .closing h2 { margin: 0; font-family: Georgia, "Songti SC", serif; font-size: clamp(48px, 6vw, 94px); line-height: 1.12; letter-spacing: -.045em; font-weight: 400; }
.manifesto h2 span { position: relative; color: var(--orange); font-style: italic; }
.manifesto h2 span::after { content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 2px; background: var(--orange); transform: rotate(-2deg); }
.tiny-orbit { width: 120px; aspect-ratio: 1; border: 1px solid rgba(29,39,32,.22); border-radius: 50%; position: relative; justify-self: end; }
.tiny-orbit i { width: 15px; aspect-ratio: 1; border-radius: 50%; background: var(--orange); position: absolute; left: 3px; top: 14px; }
.principles { margin: 0 5vw 130px; border-top: 1px solid rgba(29,39,32,.2); display: grid; grid-template-columns: repeat(3, 1fr); }
.principles article { padding: 38px 34px 50px; border-right: 1px solid rgba(29,39,32,.2); }
.principles article:first-child { border-left: 1px solid rgba(29,39,32,.2); }
.principles article span { font: 10px monospace; color: var(--orange); }
.principles h3 { margin: 48px 0 14px; font: 400 26px Georgia, "Songti SC", serif; }
.principles p { margin: 0; max-width: 250px; color: #697268; font-size: 14px; line-height: 1.8; }
.practice { min-height: 820px; padding: 110px 8vw; background: var(--ink); color: var(--paper); display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 8vw; position: relative; overflow: hidden; }
.practice::before { content: ""; position: absolute; width: 520px; height: 520px; border: 1px solid rgba(244,241,232,.07); border-radius: 50%; left: -300px; bottom: -280px; }
.section-number.light { color: #92a08e; margin-bottom: 70px; }
.practice h2 { font-size: clamp(62px, 7vw, 104px); }
.practice-copy > p { margin: 35px 0 50px; color: #adb7ac; font-size: 14px; line-height: 1.9; }
.duration-options { display: flex; gap: 8px; }
.duration-options button { border: 1px solid rgba(244,241,232,.25); background: transparent; color: #cdd3ca; border-radius: 99px; padding: 11px 20px; cursor: pointer; font: inherit; transition: .2s; }
.duration-options button:hover, .duration-options button.active { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.breath-stage { text-align: center; position: relative; z-index: 2; }
.breath-ring { width: min(32vw, 410px); aspect-ratio: 1; margin: 0 auto 38px; border: 1px solid rgba(244,241,232,.16); border-radius: 50%; display: grid; place-items: center; position: relative; }
.breath-ring::before, .breath-ring::after { content: ""; position: absolute; border: 1px solid rgba(244,241,232,.08); border-radius: 50%; }
.breath-ring::before { inset: -9%; } .breath-ring::after { inset: 12%; }
.breath-core { width: 58%; aspect-ratio: 1; background: var(--sage); color: var(--ink); border-radius: 50%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; transition: transform 4s ease-in-out; box-shadow: 0 0 60px rgba(216,224,197,.1); }
.breath-core span { font-size: 12px; letter-spacing: .08em; }
.breath-core strong { font: 400 32px Georgia, serif; }
.breath-stage.inhale .breath-core { transform: scale(1.28); }
.breath-stage.exhale .breath-core { transform: scale(.9); }
.start-button { min-width: 190px; display: inline-flex; align-items: center; justify-content: space-between; gap: 38px; border: 0; background: var(--orange); color: white; padding: 16px 20px 16px 23px; cursor: pointer; font: 14px inherit; }
.start-button:hover { background: #f07851; }
.breath-stage > p { color: #7f8e80; font-size: 11px; letter-spacing: .08em; }
.closing { padding: 150px 5vw; text-align: center; min-height: 650px; display: flex; flex-direction: column; justify-content: center; align-items: center; }
.closing h2 em { color: var(--orange); font-weight: 400; }
.closing > a { margin-top: 55px; border-bottom: 1px solid var(--ink); padding: 0 6px 8px; font-size: 13px; }
.closing > a span { margin-left: 30px; }
footer { min-height: 130px; border-top: 1px solid rgba(29,39,32,.2); padding: 35px 5vw; display: flex; align-items: center; justify-content: space-between; font-size: 11px; color: #697268; }
footer .brand { font-size: 18px; color: var(--ink); }
@media (max-width: 760px) {
  .hero { padding: 0 24px 32px; } .nav { height: 82px; } .nav-links { gap: 18px; } .nav-links > a:not(.nav-cta) { display: none; }
  .hero-content { padding-top: 58px; } h1 { font-size: clamp(58px, 19vw, 88px); line-height: .98; } h1 span { margin-left: .15em; }
  .hero-copy { font-size: 14px; max-width: 310px; } .desktop-only { display: none; } .orbit { width: 76vw; right: -28vw; top: auto; bottom: -3vh; opacity: .72; } .scroll-hint { display: none; }
  .manifesto { min-height: 620px; padding: 90px 24px; display: block; }
  .section-number { margin-bottom: 65px; } .manifesto h2 { font-size: 48px; } .tiny-orbit { width: 74px; margin: 70px 0 0 auto; }
  .principles { margin: 0 24px 90px; grid-template-columns: 1fr; }
  .principles article, .principles article:first-child { border-left: 1px solid rgba(29,39,32,.2); border-right: 1px solid rgba(29,39,32,.2); border-bottom: 1px solid rgba(29,39,32,.2); }
  .principles h3 { margin-top: 26px; }
  .practice { padding: 90px 24px 80px; grid-template-columns: 1fr; gap: 80px; }
  .section-number.light { margin-bottom: 55px; } .practice h2 { font-size: 64px; } .duration-options { flex-wrap: wrap; }
  .breath-ring { width: min(78vw, 360px); } .closing { padding: 110px 24px; min-height: 540px; } .closing h2 { font-size: 47px; }
  footer { padding: 38px 24px; align-items: flex-start; gap: 26px; flex-direction: column; } footer p { margin: 0; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; } }