:root{
  --paper:#F4F6F3;      /* 白緑がかった白 */
  --paper-deep:#EAEEE9; /* 一段深い地 */
  --ink:#26302B;        /* 青みの墨 */
  --ink-soft:#5A6660;   /* やわらかい墨 */
  --rokusho:#3D6456;    /* 緑青 — 唯一のアクセント */
  --mist:#AFC6BB;       /* 通り道の線の色 */
  --hair:#D8DFDA;       /* 罫線 */
  --serif:"Shippori Mincho", serif;
  --sans:"Zen Kaku Gothic New", sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  font-weight:300;
  color:var(--ink);
  background:var(--paper);
  line-height:2;
  letter-spacing:.06em;
  font-size:15px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--rokusho);outline-offset:3px}

/* ---------- 通り道(シグネチャ) ---------- */
.michi{
  position:fixed;left:50%;top:0;width:1px;height:100%;
  background:linear-gradient(to bottom, transparent, var(--hair) 12%, var(--hair) 88%, transparent);
  transform:translateX(-.5px);
  z-index:0;pointer-events:none;
}
.michi-flow{
  position:absolute;left:0;top:0;width:1px;height:0%;
  background:var(--mist);
  transition:height .1s linear;
}
main{position:relative;z-index:1}

/* ---------- ヘッダー ---------- */
header{
  position:fixed;top:0;left:0;right:0;z-index:10;
  display:flex;justify-content:space-between;align-items:center;
  padding:1.1rem 5vw;
  background:color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--hair);
}
.brand{font-family:var(--serif);font-weight:600;font-size:1.05rem;letter-spacing:.14em}
.brand small{display:block;font-family:var(--sans);font-weight:300;font-size:.6rem;letter-spacing:.3em;color:var(--ink-soft)}
nav{display:flex;gap:1.8rem;font-size:.78rem;letter-spacing:.18em}
nav a{color:var(--ink-soft);transition:color .3s}
nav a:hover{color:var(--rokusho)}
.nav-cta{color:var(--rokusho);border:1px solid var(--rokusho);padding:.35rem 1rem;border-radius:999px}
.nav-cta:hover{background:var(--rokusho);color:var(--paper)}
@media(max-width:760px){nav a:not(.nav-cta){display:none}}

/* ---------- 共通セクション ---------- */
section{padding:7.5rem 5vw;max-width:900px;margin:0 auto}
.eyebrow{
  font-size:.68rem;letter-spacing:.42em;color:var(--rokusho);
  text-align:center;margin-bottom:2.4rem;font-weight:400;
}
h2{
  font-family:var(--serif);font-weight:500;font-size:1.55rem;
  letter-spacing:.12em;text-align:center;line-height:2;
  margin-bottom:2.6rem;
}
.lead{max-width:34em;margin:0 auto;text-align:center;color:var(--ink-soft)}
.reveal{opacity:0;transform:translateY(18px);transition:opacity 1.1s ease,transform 1.1s ease}
.reveal.on{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------- ヒーロー ---------- */
.hero{
  min-height:100svh;
  display:flex;flex-direction:column;justify-content:center;align-items:center;
  text-align:center;padding:8rem 5vw 5rem;position:relative;max-width:none;
}
.hero-rinen{
  font-family:var(--serif);font-weight:500;
  writing-mode:vertical-rl;
  font-size:clamp(1.35rem, 3.4vw, 2rem);
  letter-spacing:.42em;line-height:2.6;
  height:auto;
  margin:0 auto;
  color:var(--ink);
}
.hero-rinen em{font-style:normal;color:var(--rokusho)}
.hero-sub{
  margin-top:2.8rem;font-size:.8rem;letter-spacing:.3em;color:var(--ink-soft);
}
.hero-name{
  margin-top:1.1rem;font-family:var(--serif);font-size:1.3rem;letter-spacing:.3em;font-weight:600;
}
.hero-scroll{
  position:absolute;bottom:2.2rem;left:50%;transform:translateX(-50%);
  font-size:.62rem;letter-spacing:.4em;color:var(--ink-soft);
}

/* ---------- 理念 ---------- */
.rinen-box{
  border-top:1px solid var(--hair);border-bottom:1px solid var(--hair);
  padding:3.4rem 1rem;text-align:center;
}
.rinen-box p.big{
  font-family:var(--serif);font-size:1.15rem;letter-spacing:.14em;line-height:2.4;
}
.rinen-map{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  margin-top:3.2rem;text-align:center;
}
.rinen-map div{padding:1.4rem .6rem;border-left:1px solid var(--hair)}
.rinen-map div:first-child{border-left:none}
.rinen-map b{
  display:block;font-family:var(--serif);font-weight:500;font-size:1rem;
  letter-spacing:.2em;margin-bottom:.5rem;color:var(--rokusho);
}
.rinen-map span{font-size:.76rem;color:var(--ink-soft);letter-spacing:.1em}
@media(max-width:640px){
  .rinen-map{grid-template-columns:repeat(2,1fr)}
  .rinen-map div:nth-child(3){border-left:none;border-top:1px solid var(--hair)}
  .rinen-map div:nth-child(4){border-top:1px solid var(--hair)}
}

/* ---------- 三つの入口 ---------- */
.iriguchi{max-width:1020px}
.doors{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem;margin-top:1rem}
@media(max-width:820px){.doors{grid-template-columns:1fr;max-width:26rem;margin-inline:auto}}
.door{
  background:#fff;
  border:1px solid var(--hair);
  padding:2.6rem 1.8rem 2.2rem;
  display:flex;flex-direction:column;gap:1rem;
  transition:border-color .4s, transform .4s;
}
.door:hover{border-color:var(--mist);transform:translateY(-4px)}
.door .to{font-size:.66rem;letter-spacing:.34em;color:var(--rokusho)}
.door h3{font-family:var(--serif);font-weight:500;font-size:1.18rem;letter-spacing:.12em;line-height:1.9}
.door p{font-size:.82rem;color:var(--ink-soft);flex:1}
.door .go{
  font-size:.74rem;letter-spacing:.24em;color:var(--rokusho);
  border-top:1px solid var(--hair);padding-top:1rem;
}
.door .go::after{content:" →"}

/* ---------- 教育観 ---------- */
.kyoiku{background:var(--paper-deep);max-width:none;padding-inline:0}
.kyoiku-inner{max-width:760px;margin:0 auto;padding:0 5vw}
.kyoiku blockquote{
  font-family:var(--serif);font-size:1.08rem;line-height:2.5;letter-spacing:.1em;
  text-align:center;max-width:32em;margin:0 auto 2.4rem;
}
.kyoiku blockquote strong{font-weight:600;color:var(--rokusho)}
.kyoiku .lead{text-align:left}
.kyoiku .note-link{display:block;text-align:center;margin-top:2.6rem}

/* ---------- プロフィール ---------- */
.profile-grid{
  display:grid;grid-template-columns:190px 1fr;gap:3rem;align-items:start;
  max-width:760px;margin:0 auto;
}
@media(max-width:640px){.profile-grid{grid-template-columns:1fr;gap:1.6rem;text-align:center}}
.face{object-fit:cover;
  width:190px;height:190px;border-radius:50%;
  background:radial-gradient(circle at 35% 30%, #fff, var(--paper-deep));
  border:1px solid var(--hair);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);color:var(--ink-soft);font-size:.72rem;letter-spacing:.2em;
  margin-inline:auto;
}
.profile h3{font-family:var(--serif);font-weight:600;font-size:1.2rem;letter-spacing:.16em;margin-bottom:.2rem}
.profile .yomi{font-size:.68rem;letter-spacing:.3em;color:var(--ink-soft);margin-bottom:1.4rem}
.profile p{font-size:.85rem;color:var(--ink-soft);margin-bottom:1rem}
.profile .since{
  display:inline-block;font-family:var(--serif);color:var(--rokusho);
  border:1px solid var(--mist);padding:.3rem 1.1rem;border-radius:999px;
  font-size:.78rem;letter-spacing:.18em;margin-bottom:1.4rem;
}
.creds{list-style:none;font-size:.76rem;color:var(--ink-soft);letter-spacing:.08em}
.creds li{padding:.45rem 0;border-top:1px solid var(--hair)}
.creds li:last-child{border-bottom:1px solid var(--hair)}

/* ---------- はじめての方へ ---------- */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:0;max-width:820px;margin:0 auto;counter-reset:step}
@media(max-width:640px){.flow{grid-template-columns:1fr}}
.step{padding:1.8rem 1.4rem;border-left:1px solid var(--hair);position:relative}
.step:first-child{border-left:none}
@media(max-width:640px){
  .step{border-left:none;border-top:1px solid var(--hair)}
  .step:first-child{border-top:none}
}
.step::before{
  counter-increment:step;content:counter(step);
  font-family:var(--serif);font-size:1.6rem;color:var(--mist);display:block;margin-bottom:.4rem;
}
.step b{display:block;font-weight:500;font-size:.9rem;letter-spacing:.14em;margin-bottom:.4rem}
.step p{font-size:.78rem;color:var(--ink-soft)}

/* ---------- 発信・CONTACT ---------- */
.hasshin{text-align:center}
.links{display:flex;gap:1.2rem;justify-content:center;flex-wrap:wrap;margin-top:2.2rem}
.pill{
  border:1px solid var(--hair);padding:.6rem 1.6rem;border-radius:999px;
  font-size:.78rem;letter-spacing:.18em;transition:border-color .3s,color .3s;
}
.pill:hover{border-color:var(--rokusho);color:var(--rokusho)}
.contact{background:var(--ink);color:var(--paper);max-width:none;text-align:center}
.contact .eyebrow{color:var(--mist)}
.contact h2{color:var(--paper)}
.contact p{color:#B9C4BE;font-size:.85rem;max-width:30em;margin:0 auto}
.cta{
  display:inline-block;margin-top:2.4rem;
  background:var(--paper);color:var(--ink);
  padding:1rem 3.2rem;border-radius:999px;
  font-size:.85rem;letter-spacing:.22em;
  transition:opacity .3s;
}
.cta:hover{opacity:.85}
.contact .sub-cta{display:block;margin-top:1.4rem;font-size:.74rem;letter-spacing:.2em;color:var(--mist)}
footer{
  text-align:center;padding:2.6rem 5vw;font-size:.68rem;letter-spacing:.2em;color:var(--ink-soft);
  border-top:1px solid var(--hair);
}