/* Ink-and-five-elements: dark ink ground, the five element colors used only as small signals.
   Layout: single centered column (max 1080px), sections separated by space, not boxes. */
:root {
  --ink: #111216;
  --ink-2: #1a1c22;
  --line: #2c2f38;
  --paper: #ecebe6;
  --muted: #a3a4ab;
  --wood: #6fcf97;
  --fire: #ff6f4a;
  --earth: #e2b260;
  --metal: #e6e8ee;
  --water: #6ea8ff;
  --accent: var(--earth);
  --f-display: "Fraunces", "Times New Roman", serif;
  --f-hanja: "Noto Serif KR", "Songti SC", serif;
  --f-body: "Manrope", "Helvetica Neue", Arial, sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.65;
}
a { color: inherit; }
img { max-width: 100%; }

.wrap { max-width: 1080px; margin: 0 auto; padding-inline: 20px; }
.narrow { max-width: 720px; }

/* five-element strip: the brand mark */
.elements { display: flex; height: 4px; }
.elements span { flex: 1; }
.elements .w { background: var(--wood); }
.elements .f { background: var(--fire); }
.elements .e { background: var(--earth); }
.elements .m { background: var(--metal); }
.elements .wa { background: var(--water); }

header.site {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding-block: 20px;
}
.brand { font-family: var(--f-display); font-size: 22px; font-weight: 600; text-decoration: none; letter-spacing: 0.01em; }
.brand small { font-family: var(--f-hanja); color: var(--muted); font-size: 15px; margin-left: 6px; }
nav.top { display: flex; gap: 20px; font-size: 14px; color: var(--muted); }
nav.top a { text-decoration: none; }
nav.top a:hover { color: var(--paper); }

h1, h2, h3 { text-wrap: balance; margin: 0; }
h1 { font-family: var(--f-display); font-weight: 500; font-size: clamp(40px, 7vw, 76px); line-height: 1.05; letter-spacing: -0.015em; }
h2 { font-family: var(--f-display); font-weight: 500; font-size: clamp(30px, 4.4vw, 44px); line-height: 1.12; }
h3 { font-size: 18px; font-weight: 700; }
.eyebrow { font-size: 13px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); font-weight: 700; }
.lede { color: var(--muted); font-size: 19px; max-width: 34em; }

section { padding-block: 72px; }
.section-head { display: grid; gap: 12px; margin-bottom: 36px; }

/* hero */
.hero { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 48px; align-items: center; padding-block: 56px 72px; }
.hero > * { min-width: 0; }
.hero .copy { display: grid; gap: 22px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.btn {
  display: inline-block; text-decoration: none; font-weight: 700; font-size: 16px;
  padding: 14px 24px; border-radius: 999px; background: var(--paper); color: var(--ink);
  border: 1px solid var(--paper);
}
.btn:hover { background: transparent; color: var(--paper); }
.btn.ghost { background: transparent; color: var(--paper); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--paper); }
.btn:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.note { font-size: 14px; color: var(--muted); }

/* example Four Pillars chart */
.chart { border: 1px solid var(--line); border-radius: 16px; background: var(--ink-2); padding: 22px; display: grid; gap: 14px; }
.chart .cap { display: flex; justify-content: space-between; font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; text-align: center; }
.pillar { display: grid; gap: 6px; }
.pillar .lbl { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.pillar .g { font-family: var(--f-hanja); font-size: clamp(30px, 5vw, 44px); font-weight: 700; line-height: 1.15; border-radius: 10px; padding-block: 6px; background: var(--ink); }
.pillar.day .g { outline: 1px solid var(--metal); }
.g.wood { color: var(--wood); } .g.fire { color: var(--fire); } .g.earth { color: var(--earth); }
.g.metal { color: var(--metal); } .g.water { color: var(--water); }
.balance { display: grid; gap: 6px; }
.bar { display: flex; height: 8px; border-radius: 4px; overflow: hidden; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 12px; color: var(--muted); }
.legend i { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; vertical-align: middle; }

/* steps */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; counter-reset: s; }
.steps li { display: grid; gap: 8px; align-content: start; border-top: 1px solid var(--line); padding-top: 18px; counter-increment: s; }
.steps li::before { content: counter(s); font-family: var(--f-display); font-size: 30px; color: var(--accent); line-height: 1; }
.steps p { margin: 0; color: var(--muted); font-size: 15px; }

/* pricing */
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: stretch; }
.plan { border: 1px solid var(--line); border-radius: 18px; padding: 28px; display: grid; gap: 18px; align-content: start; }
.plan.featured { border-color: var(--earth); background: var(--ink-2); }
.plan .name { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.price { font-family: var(--f-display); font-size: 46px; line-height: 1; font-variant-numeric: tabular-nums; }
.price s { font-size: 22px; color: var(--muted); margin-left: 8px; }
.tag { font-size: 12px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink); background: var(--earth); padding: 4px 10px; border-radius: 999px; }
.plan ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.plan li { padding-left: 20px; position: relative; font-size: 15.5px; }
.plan li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 8px; height: 8px; border-radius: 50%; background: var(--line); }
.plan.featured li::before { background: var(--earth); }
.plan .btn { text-align: center; }

/* about saju */
.about { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.about > * { min-width: 0; }
.about p { margin: 0 0 14px; color: var(--muted); }
.facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.fact { border-top: 1px solid var(--line); padding-top: 14px; }
.fact b { display: block; font-family: var(--f-display); font-size: 34px; font-weight: 500; font-variant-numeric: tabular-nums; }
.fact span { font-size: 14px; color: var(--muted); }

/* faq */
.faq { display: grid; gap: 0; }
.faq details { border-top: 1px solid var(--line); padding-block: 18px; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 700; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::after { content: "+"; color: var(--muted); }
.faq details[open] summary::after { content: "–"; }
.faq p { margin: 10px 0 0; color: var(--muted); }

/* footer */
footer.site { border-top: 1px solid var(--line); padding-block: 36px 48px; display: grid; gap: 18px; font-size: 14px; color: var(--muted); }
footer.site .links { display: flex; flex-wrap: wrap; gap: 18px; }
footer.site .links a { text-decoration: none; }
footer.site .links a:hover { color: var(--paper); }

/* legal pages */
.legal { padding-block: 40px 72px; }
.legal h1 { font-size: clamp(34px, 5vw, 52px); margin-bottom: 8px; }
.legal .updated { color: var(--muted); font-size: 14px; margin-bottom: 36px; }
.legal h2 { font-size: 24px; margin: 36px 0 10px; }
.legal p, .legal li { color: #cfd0d4; }
.legal ul { padding-left: 20px; }

@media (max-width: 820px) {
  .hero, .about, .plans { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  nav.top { display: none; }
  section { padding-block: 56px; }
}
@media (max-width: 460px) {
  .steps, .facts { grid-template-columns: 1fr; }
  .plan { padding: 22px; }
}
@media (prefers-reduced-motion: no-preference) {
  .pillar .g { animation: rise 0.8s ease-out both; }
  .pillar:nth-child(2) .g { animation-delay: 0.08s; }
  .pillar:nth-child(3) .g { animation-delay: 0.16s; }
  .pillar:nth-child(4) .g { animation-delay: 0.24s; }
  @keyframes rise { from { transform: translateY(8px); opacity: 0.4; } to { transform: none; opacity: 1; } }
}

/* language picker */
.lang { display: flex; align-items: center; }
.lang select {
  font: inherit; font-size: 14px; color: var(--paper); background: var(--ink-2);
  border: 1px solid var(--line); border-radius: 999px; padding: 8px 32px 8px 14px;
  appearance: none; -webkit-appearance: none; cursor: pointer;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 17px) 55%, calc(100% - 12px) 55%;
  background-size: 5px 5px; background-repeat: no-repeat;
}
.lang select:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.legend b { font-weight: 400; }
:lang(ja) h1, :lang(zh) h1, :lang(ko) h1, :lang(th) h1,
:lang(ja) h2, :lang(zh) h2, :lang(ko) h2, :lang(th) h2 { font-weight: 700; letter-spacing: 0; line-height: 1.3; }
:lang(ko) h1, :lang(ko) h2 { font-family: var(--f-hanja); }
:lang(ja) h1, :lang(ja) h2 { font-family: "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", serif; }
:lang(zh) h1, :lang(zh) h2 { font-family: "Songti SC", "STSong", "Noto Serif SC", serif; }
:lang(th) h1, :lang(th) h2 { font-family: "Thonburi", "Leelawadee UI", "Noto Sans Thai", sans-serif; }