:root {
  --bg: #050609;
  --bg2: #07090d;
  --panel: rgba(13, 19, 30, 0.5);
  --line: rgba(140, 170, 215, 0.10);
  --line2: rgba(150, 190, 240, 0.3);
  --text: #dfe6f0;
  --bright: #f4f7fb;
  --dim: #8b98ab;
  --faint: #566275;
  --accent: #a9c6f2;
  --cyan: #6fc6e8;
  --serif: "Shippori Mincho", "Noto Serif JP", "Yu Mincho", serif;
  --sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;
  --en: "Outfit", "Avenir Next", "Helvetica Neue", sans-serif;
  --mono: "IBM Plex Mono", "Consolas", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--text);
  background: var(--bg);
  line-height: 2.1;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
::selection { background: rgba(150, 190, 240, 0.25); }
a { color: var(--accent); }
strong { font-weight: 600; color: var(--text); }
i { font-style: italic; }
.notice { font-size: 0.84rem; color: var(--dim); }

/* ---------- cursor glow ---------- */
.cursor-glow {
  position: fixed; top: 0; left: 0; width: 640px; height: 640px; border-radius: 50%;
  background: radial-gradient(circle, rgba(120, 170, 255, 0.055), transparent 62%);
  pointer-events: none; z-index: 1; mix-blend-mode: screen;
  transition: transform 0.22s ease-out;
  will-change: transform;
}

/* ---------- intro overlay (replayable via .play) ---------- */
.intro {
  position: fixed; inset: 0; z-index: 100; background: #030407;
  display: flex; align-items: center; justify-content: center;
  pointer-events: none; opacity: 0; visibility: hidden;
}
.intro.play { opacity: 1; visibility: visible; animation: introOut 0.9s ease 2.5s forwards; }
.intro span {
  font-family: var(--en); font-weight: 200; font-size: 1.05rem;
  letter-spacing: 0.62em; padding-left: 0.62em; color: #cfd9e8;
  opacity: 0;
}
.intro.play span { animation: introIn 1.7s ease 0.35s forwards; }
@keyframes introIn { from { opacity: 0; letter-spacing: 0.8em; } to { opacity: 1; letter-spacing: 0.62em; } }
@keyframes introOut { to { opacity: 0; visibility: hidden; } }

/* ---------- nav ---------- */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 50; background: linear-gradient(180deg, rgba(5,6,9,0.85), rgba(5,6,9,0)); }
.nav-inner {
  max-width: 1240px; margin: 0 auto; padding: 26px 36px;
  display: flex; align-items: baseline; justify-content: space-between; gap: 16px;
}
.nav-name {
  font-family: var(--serif); font-size: 0.95rem; font-weight: 600;
  color: var(--text); text-decoration: none; letter-spacing: 0.32em;
}
.nav-links { display: flex; gap: 34px; }
.nav-links a {
  font-family: var(--en); font-weight: 300; color: var(--dim); text-decoration: none;
  font-size: 0.74rem; letter-spacing: 0.28em; transition: color .3s;
}
.nav-links a:hover, .nav-links a.current { color: var(--bright); }

/* ---------- hero ---------- */
.hero4 {
  position: relative; min-height: 100vh; overflow: hidden;
  display: flex; align-items: center; justify-content: center; text-align: center;
}
.hero4 canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero4::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; z-index: 1;
  background: radial-gradient(ellipse 62% 52% at 50% 46%, rgba(5, 6, 9, 0.62), transparent 100%);
}
.hero4-inner { position: relative; z-index: 2; padding: 0 24px; }
.h4-name {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(2.3rem, 5.4vw, 3.7rem);
  letter-spacing: 0.34em; padding-left: 0.34em;
  opacity: 0; filter: blur(10px);
  animation: nameIn 2.4s ease 3.1s forwards;
}
.h4-en {
  margin-top: 22px;
  font-family: var(--en); font-weight: 200; font-size: 0.78rem;
  letter-spacing: 0.58em; padding-left: 0.58em; color: var(--dim);
  opacity: 0; animation: softIn 1.8s ease 4.2s forwards;
}
.h4-rotator {
  position: relative; margin-top: 72px; height: 3.4em;
  opacity: 0; animation: softIn 1.8s ease 5.0s forwards;
}
.h4-rotator span {
  position: absolute; left: 0; right: 0; top: 0;
  font-family: var(--serif); font-weight: 500; font-size: clamp(0.98rem, 1.9vw, 1.18rem);
  letter-spacing: 0.3em; padding-left: 0.3em; color: #b9c5d6;
  opacity: 0; filter: blur(6px);
  transition: opacity 1.6s ease, filter 1.6s ease;
}
.h4-rotator span.on { opacity: 1; filter: blur(0); }
.scroll-line {
  position: absolute; bottom: 0; left: 50%; z-index: 2;
  width: 1px; height: 72px; overflow: hidden;
}
.scroll-line::after {
  content: ""; position: absolute; left: 0; top: -100%; width: 1px; height: 100%;
  background: linear-gradient(180deg, transparent, rgba(190, 210, 240, 0.7));
  animation: scrollDrop 2.6s ease-in-out infinite;
}
@keyframes scrollDrop { 0% { top: -100%; } 60% { top: 100%; } 100% { top: 100%; } }
@keyframes nameIn { to { opacity: 1; filter: blur(0); } }
@keyframes softIn { to { opacity: 1; } }

/* ---------- shared section ---------- */
.section { max-width: 1240px; margin: 0 auto; padding: 150px 36px; position: relative; z-index: 2; }
.section.tight { padding-top: 70px; padding-bottom: 70px; }
.band { background: var(--bg2); }
.band-line { border-top: 1px solid var(--line); }
.sec-en {
  font-family: var(--en); font-weight: 300; font-size: 0.72rem;
  letter-spacing: 0.5em; color: var(--faint); text-transform: uppercase;
  margin-bottom: 60px;
}
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.7; }
h2 { font-size: clamp(1.4rem, 2.8vw, 1.9rem); margin-bottom: 28px; letter-spacing: 0.08em; }
h3 { font-size: 1.05rem; margin: 30px 0 14px; }
p { margin-bottom: 1.1em; }

/* reveal */
.reveal { opacity: 0; transform: translateY(22px); filter: blur(3px); transition: opacity 1.3s ease, transform 1.3s ease, filter 1.3s ease; }
.reveal.on { opacity: 1; transform: none; filter: none; }

/* ---------- statement ---------- */
.statement { max-width: 780px; margin: 0 auto; }
.st-text {
  font-family: var(--serif); font-size: clamp(1.02rem, 1.7vw, 1.16rem);
  line-height: 2.75; letter-spacing: 0.1em; color: #c6d0de;
}
.st-text p { margin-bottom: 2.6em; }
.st-text .open { color: var(--bright); font-size: 1.14em; }
.st-text .turn { color: var(--bright); }
.st-close {
  font-family: var(--serif); font-size: clamp(1.2rem, 2.4vw, 1.6rem);
  line-height: 2.4; letter-spacing: 0.14em; color: var(--bright); font-weight: 600;
  margin-top: 20px;
}
.st-close .last { display: block; font-size: clamp(1.02rem, 1.7vw, 1.16rem); color: #c6d0de; font-weight: 500; letter-spacing: 0.1em; margin-top: 18px; }

/* ---------- practice (3 pillars) ---------- */
.practice-list { max-width: 980px; margin: 0 auto; }
.pr-row {
  position: relative; display: grid; overflow: hidden;
  grid-template-columns: 150px 1fr auto; gap: 40px; align-items: center;
  padding: 64px 20px; text-decoration: none;
  border-top: 1px solid var(--line);
  transition: background 0.5s, opacity 1.1s ease, transform 1.1s ease, filter 1.1s ease;
}
.practice-list .pr-row.reveal:nth-of-type(2) { transition-delay: 0s, .18s, .18s, .18s; }
.practice-list .pr-row.reveal:nth-of-type(3) { transition-delay: 0s, .36s, .36s, .36s; }
.pr-ghost {
  position: absolute; right: 1%; top: 50%;
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(9rem, 17vw, 14rem); line-height: 1;
  color: rgba(150, 190, 250, 0.038);
  pointer-events: none; user-select: none;
  transform: translateY(-50%);
  transition: color 0.7s;
  will-change: transform;
}
.pr-row:hover .pr-ghost { color: rgba(150, 190, 250, 0.1); }
.pr-row:last-of-type { border-bottom: 1px solid var(--line); }
.pr-kanji {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(2.6rem, 5vw, 3.8rem); line-height: 1; color: var(--text);
  letter-spacing: 0; transition: color 0.5s, text-shadow 0.5s;
}
.pr-kanji .yomi { display: block; font-family: var(--en); font-weight: 300; font-size: 0.64rem; letter-spacing: 0.44em; color: var(--faint); margin-top: 16px; transition: color .5s; }
.pr-body { color: var(--dim); font-size: 0.96rem; line-height: 2.2; max-width: 36em; transition: color .5s; }
.pr-body b { color: var(--text); font-weight: 500; }
.pr-arrow { font-family: var(--en); font-weight: 300; color: var(--faint); font-size: 0.9rem; transition: color .4s, transform .4s; }
.pr-row:hover { background: rgba(140, 175, 230, 0.025); }
.pr-row:hover .pr-kanji { color: var(--bright); text-shadow: 0 0 34px rgba(160, 195, 250, 0.35); }
.pr-row:hover .pr-kanji .yomi { color: var(--dim); }
.pr-row:hover .pr-body { color: #aeb9c9; }
.pr-row:hover .pr-arrow { color: var(--bright); transform: translateX(6px); }

/* ---------- biography ---------- */
.bio4 { max-width: 760px; margin: 0 auto; }
.bio-timeline { position: relative; }
.bio-track { position: absolute; left: 132px; top: 14px; bottom: 14px; width: 1px; background: var(--line); }
.bio-progress {
  position: absolute; left: 132px; top: 14px; width: 1px; height: 0;
  background: linear-gradient(180deg, rgba(169, 198, 242, 0.15), rgba(169, 198, 242, 0.85));
  box-shadow: 0 0 10px rgba(169, 198, 242, 0.35);
}
.bio-row { display: grid; grid-template-columns: 100px 1fr; gap: 66px; padding: 26px 0; align-items: baseline; position: relative; }
.bio-year { font-family: var(--en); font-weight: 200; font-size: 1.55rem; letter-spacing: 0.12em; color: var(--faint); text-align: right; transition: color 1s; }
.bio-row.on .bio-year { color: #b9c9e2; }
.bio-row::before {
  content: ""; position: absolute; left: 129.5px; top: 50%; width: 6px; height: 6px; border-radius: 50%;
  background: var(--faint); transform: translateY(-50%) scale(0.6);
  transition: background 0.8s, box-shadow 0.8s, transform 0.8s;
}
.bio-row.on::before { background: var(--accent); box-shadow: 0 0 14px rgba(169, 198, 242, 0.7); transform: translateY(-50%) scale(1); }
.bio-what { color: var(--dim); font-size: 0.95rem; }
.bio-what b { color: var(--text); font-weight: 500; }
.bio-more { margin-top: 52px; font-size: 0.85rem; color: var(--faint); }
.bio-more a { color: var(--dim); text-decoration-color: var(--faint); }
.bio-more a:hover { color: var(--accent); }

/* ---------- contact (top) ---------- */
.contact4 { text-align: center; position: relative; overflow: hidden; }
.contact4 .flow-bg { position: absolute; inset: 0; width: 100%; height: 100%; }
.contact4 .c4-veil {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse 60% 55% at 50% 50%, rgba(5, 6, 9, 0.55), transparent 100%);
}
.contact4 .c4-inner { position: relative; z-index: 2; }
.contact4 .c4-line {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(1.5rem, 3.2vw, 2.2rem); letter-spacing: 0.16em; margin-bottom: 40px;
}
.contact4 p { color: var(--dim); max-width: 560px; margin-left: auto; margin-right: auto; }
.c4-link {
  display: inline-block; margin-top: 34px;
  font-family: var(--serif); font-size: 1.12rem; letter-spacing: 0.22em;
  color: var(--text); text-decoration: none;
  border-bottom: 1px solid var(--line2); padding-bottom: 8px;
  transition: color .4s, border-color .4s;
}
.c4-link:hover { color: var(--bright); border-color: var(--bright); }

/* ---------- buttons (subpages) ---------- */
.btn {
  display: inline-block; text-decoration: none; font-size: 0.86rem;
  padding: 13px 28px; letter-spacing: 0.12em;
  transition: all .3s;
}
.btn-primary { color: #0a1018; font-weight: 600; background: var(--accent); }
.btn-primary:hover { background: #c4d9f7; }
.btn-secondary { color: var(--text); border: 1px solid var(--line2); background: transparent; }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.btn-green { color: var(--text); border: 1px solid var(--line2); }
.btn-green:hover { border-color: var(--accent); color: var(--accent); }
.btn-small { font-size: 0.8rem; padding: 10px 20px; }

/* ---------- subpage head ---------- */
.page-head { padding: 170px 36px 30px; max-width: 1240px; margin: 0 auto; }
.page-head h1 { font-size: clamp(1.7rem, 3.6vw, 2.4rem); letter-spacing: .1em; }
.sec-label {
  font-family: var(--en); font-weight: 300; font-size: 0.7rem;
  letter-spacing: 0.46em; color: var(--faint); text-transform: uppercase; margin-bottom: 14px;
}
.sec-no { font-family: var(--en); font-weight: 300; font-size: 0.72rem; letter-spacing: 0.3em; color: var(--faint); }
.sec-head { margin-bottom: 50px; }

/* ---------- subpage lists ---------- */
.role-note { font-size: 0.86rem; color: var(--dim); background: var(--panel); border: 1px solid var(--line); padding: 18px 24px; }
.tag {
  display: inline-block; font-family: var(--en); font-weight: 300; font-size: 0.62rem; letter-spacing: 0.3em;
  color: var(--accent); border: 1px solid var(--line2); padding: 3px 10px 2px 13px; text-transform: uppercase; vertical-align: middle;
}
.tag.alt { color: var(--cyan); }
.timeline-list { list-style: none; }
.timeline-list li { padding: 11px 0; border-bottom: 1px solid var(--line); font-size: 0.92rem; color: var(--dim); }
.timeline-list .year { display: inline-block; width: 60px; font-family: var(--en); font-weight: 300; color: var(--faint); font-size: 0.84rem; letter-spacing: .1em; }
.plain-list { list-style: none; }
.plain-list li { padding: 7px 0 7px 20px; position: relative; font-size: 0.92rem; color: var(--dim); }
.plain-list li::before { content: "—"; position: absolute; left: 0; color: var(--faint); font-size: .8em; top: .95em; }
.paper-list { list-style: none; font-size: 0.86rem; }
.paper-list li { padding: 11px 0; border-bottom: 1px solid var(--line); color: var(--faint); }
.paper-list li b { color: var(--dim); font-weight: 500; }
.mark { color: var(--accent); font-weight: 500; margin-right: 6px; font-size: .85em; }
.more-link { display: inline-block; margin-top: 16px; font-size: 0.85rem; }

/* ---------- contact page blocks ---------- */
.contact-block { border: 1px solid var(--line); padding: 34px 36px; margin-bottom: 26px; background: var(--panel); transition: border-color .3s; }
.contact-block:hover { border-color: var(--line2); }
.contact-block h2 { font-size: 1.2rem; margin-bottom: 6px; }
.contact-block .blk-sub { display: block; font-family: var(--en); font-weight: 300; font-size: 0.66rem; letter-spacing: 0.32em; color: var(--faint); text-transform: uppercase; margin-bottom: 18px; }
.contact-block p, .contact-block li { color: var(--dim); }
.theme-list li { margin-bottom: 12px; }
.jump-nav { display: flex; gap: 10px; flex-wrap: wrap; margin: 22px 0 6px; }
.jump-nav a { font-size: 0.8rem; letter-spacing: .08em; text-decoration: none; color: var(--dim); border: 1px solid var(--line); padding: 6px 16px; transition: all .3s; }
.jump-nav a:hover { color: var(--bright); border-color: var(--line2); }
.mail-fallback { font-size: 0.76rem; color: var(--faint); margin-top: 12px; }
.profile-kit { background: var(--bg2); border: 1px solid var(--line); padding: 28px 32px; margin-top: 10px; }
.profile-kit dt { font-weight: 600; margin-top: 18px; font-size: 0.88rem; color: var(--text); }
.profile-kit dd { font-size: 0.86rem; color: var(--dim); margin-top: 4px; }
.kit-flex { display: flex; gap: 28px; align-items: flex-start; flex-wrap: wrap; }
.photo-placeholder { border: 1px solid var(--line); background: #080c13; text-align: center; overflow: hidden; }
.photo-placeholder svg { display: block; width: 100%; height: auto; }
.photo-placeholder .cap { font-size: 0.66rem; color: var(--faint); padding: 10px; line-height: 1.7; border-top: 1px solid var(--line); letter-spacing: 0.08em; }
.photo-placeholder.small { width: 160px; }
.bio-flex { display: flex; gap: 48px; align-items: flex-start; }
.bio-text { flex: 1; color: var(--dim); }
.bio-text .lead { color: var(--text); }
.bio-flex .photo-placeholder { flex: 0 0 250px; }
.cta-strip { text-align: left; }
.cta-strip .cta-title { font-family: var(--serif); font-size: clamp(1.3rem, 2.8vw, 1.8rem); margin-bottom: 20px; letter-spacing: .08em; }
.cta-strip p { max-width: 640px; color: var(--dim); }

/* ---------- contact form ---------- */
.cform { max-width: 680px; }
.cform label {
  display: block; font-family: var(--sans); font-weight: 600; font-size: 0.95rem;
  letter-spacing: 0.06em; color: var(--text); margin: 34px 0 10px;
}
.cform .req { color: var(--cyan); margin-left: 5px; }
.cform input, .cform select, .cform textarea {
  width: 100%; background: rgba(22, 31, 48, 0.7); border: 1px solid rgba(150, 190, 240, 0.28);
  color: var(--bright); font-family: var(--sans); font-size: 1rem;
  padding: 14px 16px; outline: none; transition: border-color .3s, background .3s; border-radius: 3px;
  color-scheme: dark;
}
.cform input:focus, .cform select:focus, .cform textarea:focus { border-color: var(--cyan); background: rgba(26, 37, 57, 0.8); }
.cform ::placeholder { color: var(--faint); }
.cform textarea { min-height: 190px; resize: vertical; line-height: 1.9; }
.cform button { margin-top: 38px; cursor: pointer; border: none; }

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--line); position: relative; z-index: 2; }
.footer-inner { max-width: 1240px; margin: 0 auto; padding: 54px 36px 62px; font-size: 0.82rem; color: var(--dim); }
.footer-links { margin-bottom: 24px; display: flex; gap: 28px; flex-wrap: wrap; }
.footer-links a { font-family: var(--en); font-weight: 300; font-size: 0.72rem; letter-spacing: .18em; color: var(--dim); text-decoration: none; transition: color .3s; }
.footer-links a:hover { color: var(--bright); }
.footer-legal { color: var(--faint); line-height: 1.9; font-size: 0.76rem; }
.footer-copy { margin-top: 22px; font-family: var(--en); font-weight: 300; font-size: 0.66rem; color: var(--faint); letter-spacing: .34em; }

/* ---------- static mode ---------- */
.static-mode *, .static-mode *::before, .static-mode *::after { animation: none !important; transition: none !important; }
.static-mode .reveal { opacity: 1 !important; transform: none !important; filter: none !important; }
.static-mode .intro, .static-mode .cursor-glow { display: none !important; }
.static-mode .h4-name, .static-mode .h4-en, .static-mode .h4-rotator { opacity: 1 !important; filter: none !important; }
.static-mode .h4-rotator span:first-child { opacity: 1 !important; filter: none !important; }

/* ---------- responsive ---------- */
@media (max-width: 820px) {
  .nav-inner { padding: 18px 20px; }
  .nav-name { font-size: 0.82rem; letter-spacing: 0.14em; white-space: nowrap; }
  .nav-links a { font-size: 0.68rem; letter-spacing: 0.16em; }
  .hero4-inner { padding: 130px 24px 90px; }
  .h4-name { font-size: clamp(1.6rem, 7.5vw, 2.3rem); }
  .h4-rotator { margin-top: 48px; height: 5em; }
  .pr-row { grid-template-columns: 92px 1fr; gap: 24px; padding: 46px 8px; }
  .pr-arrow { display: none; }
  .pr-ghost { font-size: 8rem; right: -4%; }
  .bio-row { grid-template-columns: 64px 1fr; gap: 34px; }
  .bio-year { font-size: 1.1rem; }
  .bio-track, .bio-progress { left: 80px; }
  .bio-row::before { left: 77.5px; }
  .bio-flex, .kit-flex { flex-direction: column; }
  .nav-links { gap: 18px; }
  .section { padding: 100px 24px; }
}

/* ---------- artifact-parity additions ---------- */
@media (max-width: 820px) {
  .page-head { padding: 140px 24px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  .intro, .cursor-glow, .scroll-line { display: none !important; }
  .h4-name, .h4-en, .h4-rotator { opacity: 1 !important; filter: none !important; animation: none !important; }
  .h4-rotator span:first-child { opacity: 1 !important; filter: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; filter: none !important; transition: none !important; }
}