:root {
  color-scheme: light dark;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  --bg: #edf3f8;
  --surface: #fff;
  --surface-soft: #f4f8fc;
  --text: #0d2340;
  --muted: #526782;
  --line: #d6e2ef;
  --accent: #0965e8;
  --glow: #d9eaff;
  --focus: #0965e8;
  color: var(--text);
  background: var(--bg);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #071421;
    --surface: #0c1d2e;
    --surface-soft: #11283e;
    --text: #f1f7ff;
    --muted: #b4c7dc;
    --line: #29445d;
    --accent: #5aaaff;
    --glow: #123a66;
    --focus: #8bc4ff;
  }
}
* { box-sizing: border-box; }
html { scroll-padding-top: 1.5rem; }
body { margin: 0; min-width: 0; line-height: 1.65; }
img { display: block; max-width: 100%; height: auto; }
a { color: var(--accent); text-decoration-thickness: .08em; text-underline-offset: .22em; }
a:hover { text-decoration-thickness: .14em; }
a:focus-visible { outline: 3px solid var(--focus); outline-offset: 5px; border-radius: 3px; }
.page-width { width: min(1180px, calc(100% - 3.5rem)); margin-inline: auto; }
.skip-link { position: absolute; z-index: 5; top: .6rem; left: 1rem; padding: .65rem 1rem; background: var(--surface); transform: translateY(-200%); }
.skip-link:focus { transform: translateY(0); }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 2rem; min-height: 112px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 1rem; min-height: 44px; text-decoration: none; }
.brand img { width: 132px; }
.brand-owner { color: var(--muted); font-size: .88rem; border-left: 1px solid var(--line); padding-left: 1rem; }
.site-header nav { display: flex; flex-wrap: wrap; gap: .5rem 1.6rem; }
.site-header nav a { display: inline-flex; align-items: center; min-height: 44px; font-size: .9rem; color: var(--text); text-decoration: none; }
.site-header nav a:hover { color: var(--accent); text-decoration: underline; }
.hero { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .85fr); align-items: center; gap: clamp(2rem, 5vw, 4.5rem); padding: clamp(3rem, 7vw, 6rem) 0; }
.stage-label { display: inline-flex; align-items: center; gap: .55rem; margin: 0 0 1.5rem; padding: .3rem .75rem; color: var(--text); border: 1px solid var(--line); border-radius: 99px; background: var(--surface-soft); font-size: .8rem; letter-spacing: .02em; }
.stage-label span { width: .4rem; height: .4rem; border-radius: 50%; background: var(--accent); }
h1, h2, h3, p { overflow-wrap: break-word; }
h1 { margin: 0; max-width: 12ch; font-size: clamp(2.4rem, 4.8vw, 4.25rem); line-height: 1.1; letter-spacing: -.052em; font-weight: 730; }
h1 span { display: block; margin-top: .55em; max-width: 24ch; font-size: .54em; line-height: 1.3; letter-spacing: -.026em; font-weight: 480; color: var(--muted); }
p { margin: 0 0 1rem; }
.lead { max-width: 35rem; margin-top: 1.8rem; font-size: clamp(1.05rem, 1.55vw, 1.22rem); line-height: 1.65; }
.hero-detail { max-width: 36rem; color: var(--muted); }
.availability { font-size: .9rem; font-weight: 650; margin: 1.4rem 0 0; }
.brand-surface { position: relative; margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 24px; background: radial-gradient(ellipse at 50% 90%, var(--glow), transparent 72%), var(--surface); }
.brand-surface picture { display: block; padding: 1.5rem 2.5rem; }
.brand-surface img { width: 100%; }
.founder-image { aspect-ratio: 4 / 3; }
.purpose-section { border-top: 1px solid var(--line); padding: 4rem 0; }
.section-introduction { max-width: 43rem; }
.eyebrow { color: var(--accent); font-size: .73rem; line-height: 1.5; font-weight: 720; letter-spacing: .13em; text-transform: uppercase; margin-bottom: .8rem; }
h2 { font-size: clamp(1.65rem, 2.5vw, 2.35rem); line-height: 1.23; letter-spacing: -.035em; margin: 0 0 1.2rem; font-weight: 650; }
.section-introduction > p:last-child, .stage-copy > p, .business-identity > p:not(.eyebrow) { color: var(--muted); }
.planned-steps { list-style: none; padding: 0; margin: 2.5rem 0 2rem; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; }
.planned-steps li { border-top: 2px solid var(--line); padding-top: 1.2rem; }
.step-number { color: var(--accent); font-size: .8rem; font-variant-numeric: tabular-nums; }
h3 { font-size: 1.1rem; letter-spacing: -.02em; line-height: 1.4; margin: .8rem 0; font-weight: 680; }
.planned-steps p { color: var(--muted); font-size: .96rem; }
.human-authority { max-width: 53rem; padding: 1rem 0 0 1.2rem; border-left: 3px solid var(--accent); }
.human-authority p { color: var(--muted); margin: 0; }
.human-authority strong { color: var(--text); }
.collaboration-section { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); align-items: center; gap: clamp(1.5rem, 5vw, 4rem); margin-top: 3rem; }
.collaboration-image { margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 20px; }
.collaboration-image img { width: 100%; aspect-ratio: 4 / 3; }
.stage-section { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, .8fr); gap: clamp(2rem, 6vw, 5rem); border-top: 1px solid var(--line); padding: 4rem 0 4.5rem; }
.stage-copy { max-width: 43rem; }
.business-identity { align-self: start; padding: 1.7rem; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); }
.business-identity h3 { font-size: 1.6rem; margin-top: 0; }
.business-identity .identity-note { margin-bottom: 0; font-size: .86rem; }
.site-footer { display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; min-height: 90px; border-top: 1px solid var(--line); font-size: .82rem; color: var(--muted); }
.site-footer p { margin: 0; }
.site-footer a { display: inline-flex; align-items: center; gap: .5rem; min-height: 44px; }
@media (max-width: 780px) {
  .page-width { width: calc(100% - 2.5rem); }
  .hero { grid-template-columns: 1fr; gap: 2.3rem; padding-top: 3rem; }
  h1 { font-size: clamp(2.6rem, 7.5vw, 3.7rem); max-width: 15ch; }
  h1 span { max-width: 27ch; }
  .brand-surface { max-width: 560px; width: 100%; justify-self: center; }
  .collaboration-section { grid-template-columns: 1fr; gap: 1.5rem; }
  .planned-steps { gap: 1.3rem; }
  .stage-section { grid-template-columns: 1fr; gap: 1.5rem; }
  .business-identity { max-width: 43rem; }
}
@media (max-width: 520px) {
  .page-width { width: calc(100% - 2rem); }
  .site-header { min-height: 100px; gap: .75rem; align-items: center; }
  .brand { gap: .4rem; flex-direction: column; align-items: start; }
  .brand img { width: 105px; }
  .brand-owner { font-size: .7rem; border: 0; padding: 0 0 0 .25rem; }
  .site-header nav { flex-direction: column; gap: 0; }
  .site-header nav a { font-size: .8rem; min-height: 44px; }
  .hero { padding-block: 2.5rem 3rem; }
  h1 { font-size: clamp(2.15rem, 9vw, 2.9rem); }
  h1 span { font-size: .57em; line-height: 1.35; }
  .brand-surface { border-radius: 16px; }
  .brand-surface picture { padding: 1.1rem 1.75rem; }
  .collaboration-section { margin-top: 2rem; }
  .collaboration-image { border-radius: 16px; }
  .purpose-section { padding: 2.8rem 0; }
  .planned-steps { display: block; margin-top: 1.8rem; }
  .planned-steps li { display: grid; grid-template-columns: 1.5rem minmax(0, 1fr); align-items: start; gap: .75rem; padding-top: 1.3rem; margin-top: 1.3rem; }
  .step-number { padding-top: .16rem; }
  .planned-steps h3 { margin-top: 0; }
  .human-authority { padding-left: 1rem; }
  .stage-section { padding-block: 2.8rem; }
  .business-identity { padding: 1.3rem; }
  .site-footer { align-items: start; padding-block: 1.3rem; min-height: 0; flex-wrap: wrap; gap: .4rem 1.5rem; }
  .site-footer p { padding-block: .6rem; }
}
@media print {
  :root { --bg: #fff; --text: #000; --muted: #333; --line: #aaa; --surface: #fff; --surface-soft: #fff; --accent: #0349ed; }
  .skip-link, .site-header nav, .site-footer a { display: none; }
  .hero, .stage-section, .planned-steps { break-inside: avoid; }
}