/* ═══════════════════════════════════════════
   tetlab main.css  v1.0
   ═══════════════════════════════════════════ */

/* ── Variables ── */
:root {
  --forest:        #152820;
  --forest2:       #1e3a2e;
  --sage:          #c2cfc6;
  --sage2:         #b0bfb6;
  --warm:          #ede6db;
  --warm2:         #e4dccf;
  --card:          #f5f1ea;
  --card2:         #faf7f2;
  --ink-d:         #e8e2d8;
  --muted-d:       rgba(232,226,216,0.55);
  --dim-d:         rgba(232,226,216,0.28);
  --ink-l:         #1a1814;
  --muted-l:       #5e5a52;
  --dim-l:         #a8a49c;
  --green:         #3a7d6a;
  --green2:        #4a9d88;
  --green-on-dark: #5abfa6;
  --coral:         #c04828;
  --coral2:        #d95a38;
  --bdr-d:         rgba(232,226,216,0.10);
  --bdr-l:         rgba(26,24,20,0.10);
  --bdr-l2:        rgba(26,24,20,0.16);
  --sh1: 0 2px 12px rgba(20,36,28,0.08);
  --sh2: 0 8px 36px rgba(20,36,28,0.10);
  --sh3: 0 24px 64px rgba(20,36,28,0.13);
  --r:  16px;
  --rl: 24px;
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }
body {
  font-family:'Noto Sans JP', sans-serif;
  font-weight:400;
  background:var(--warm);
  color:var(--ink-l);
  overflow-x:hidden;
  cursor:none;
  line-height:1.7;
}
a { color:inherit; text-decoration:none; }
img { display:block; max-width:100%; }
ul, ol { list-style:none; }

/* ── Custom Cursor ── */
#tetlab-cursor {
  position:fixed; width:7px; height:7px;
  background:var(--green2); border-radius:50%;
  pointer-events:none; z-index:9999;
  transform:translate(-50%,-50%);
  transition:width .16s, height .16s, background .18s;
}
#tetlab-cursor-ring {
  position:fixed; width:30px; height:30px;
  border:1px solid rgba(90,191,166,.4); border-radius:50%;
  pointer-events:none; z-index:9998;
  transform:translate(-50%,-50%);
  transition:all .1s ease;
}
body.tetlab-hov #tetlab-cursor { width:12px; height:12px; background:var(--coral2); }
body.tetlab-hov #tetlab-cursor-ring { width:44px; height:44px; border-color:rgba(217,90,56,.35); }

/* ── Navigation ── */
#tetlab-nav {
  position:fixed; top:0; left:0; right:0; z-index:100;
  padding:1rem 6%;
  display:flex; align-items:center; justify-content:space-between;
  transition:background .3s, box-shadow .3s;
}
#tetlab-nav.sc-dark {
  background:rgba(21,40,32,.92);
  backdrop-filter:blur(18px);
  box-shadow:0 1px 0 var(--bdr-d);
}
#tetlab-nav.sc-light {
  background:rgba(237,230,219,.92);
  backdrop-filter:blur(18px);
  box-shadow:0 1px 0 var(--bdr-l);
}

/* Logo */
.site-logo { display:flex; align-items:center; }
.site-logo img,
.custom-logo { height:30px !important; width:auto !important; display:block; filter:brightness(0) invert(1); transition:filter .3s; }
#tetlab-nav.sc-light .site-logo img,
#tetlab-nav.sc-light .custom-logo { filter:none; mix-blend-mode:multiply; }
.site-logo-text {
  font-family:'Outfit', sans-serif; font-size:1.25rem; font-weight:600;
  letter-spacing:.03em; color:var(--ink-d); transition:color .3s;
}
.site-logo-text em { font-style:normal; color:var(--green-on-dark); transition:color .3s; }
#tetlab-nav.sc-light .site-logo-text { color:var(--ink-l); }
#tetlab-nav.sc-light .site-logo-text em { color:var(--green); }

/* Nav Menu */
.nav-menu {
  display:flex; gap:1.8rem;
}
.nav-menu li a {
  font-family:'Outfit', sans-serif; font-size:.78rem;
  font-weight:400; letter-spacing:.05em;
  color:var(--muted-d); transition:color .2s;
}
#tetlab-nav.sc-light .nav-menu li a { color:var(--muted-l); }
.nav-menu li a:hover,
.nav-menu li.current-menu-item a,
.nav-menu li.current_page_item a { color:var(--ink-d) !important; }
#tetlab-nav.sc-light .nav-menu li a:hover,
#tetlab-nav.sc-light .nav-menu li.current-menu-item a { color:var(--ink-l) !important; }

/* Nav CTA */
.nav-cta-btn {
  font-family:'Outfit', sans-serif; font-size:.76rem; font-weight:500;
  letter-spacing:.03em; padding:.44rem 1.1rem;
  border-radius:100px;
  background:var(--green-on-dark); color:var(--forest);
  transition:all .2s;
}
#tetlab-nav.sc-light .nav-cta-btn { background:var(--green); color:#fff; }
.nav-cta-btn:hover { filter:brightness(1.1); }

/* ── Buttons ── */
.btn-fill {
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.8rem 1.9rem;
  background:var(--green-on-dark); color:var(--forest);
  font-family:'Outfit', sans-serif; font-weight:600; font-size:.88rem;
  border-radius:100px; letter-spacing:.02em;
  transition:all .22s; box-shadow:0 4px 20px rgba(90,191,166,.3);
}
.btn-fill:hover { transform:translateY(-2px); box-shadow:0 8px 28px rgba(90,191,166,.4); filter:brightness(1.08); }
.btn-fill.green { background:var(--green); color:#fff; box-shadow:0 4px 18px rgba(58,125,106,.22); }
.btn-fill.green:hover { background:#2d6055; box-shadow:0 10px 28px rgba(58,125,106,.3); }
.btn-outline-d {
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.78rem 1.9rem;
  border:1px solid rgba(232,226,216,.22);
  color:var(--muted-d);
  font-family:'Outfit', sans-serif; font-weight:400; font-size:.88rem;
  border-radius:100px; transition:all .22s;
}
.btn-outline-d:hover { border-color:rgba(90,191,166,.5); color:var(--green-on-dark); }
.btn-outline-l {
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.76rem 1.8rem;
  border:1.5px solid var(--bdr-l2);
  color:var(--muted-l);
  font-family:'Outfit', sans-serif; font-weight:500; font-size:.88rem;
  border-radius:100px; transition:all .22s; background:var(--card);
}
.btn-outline-l:hover { border-color:var(--green); color:var(--green); }

/* ── Section commons ── */
.sec-label {
  font-family:'Outfit', sans-serif; font-size:.67rem; font-weight:400;
  letter-spacing:.22em; text-transform:uppercase;
  color:var(--green); margin-bottom:.85rem;
  display:flex; align-items:center; gap:.6rem;
}
.sec-label::before { content:''; width:17px; height:1px; background:var(--green); }
.sec-label.lt { color:var(--green-on-dark); }
.sec-label.lt::before { background:var(--green-on-dark); }
.sec-label.center { justify-content:center; }
.sec-label.center::before { display:none; }

.sec-title {
  font-family:'Noto Serif JP', serif;
  font-size:clamp(1.7rem, 3vw, 2.5rem);
  font-weight:700; line-height:1.28; letter-spacing:.04em;
  color:var(--ink-l); margin-bottom:.9rem;
}
.sec-title.lt { color:var(--ink-d); }
.sec-lead {
  font-size:.88rem; line-height:2.1; color:var(--muted-l); max-width:560px;
}
.sec-lead.lt { color:var(--muted-d); }
.sec-lead.center { margin-left:auto; margin-right:auto; text-align:center; }

/* ── Page Hero (inner pages) ── */
.page-hero {
  background:var(--forest);
  padding:9rem 6% 6rem;
  position:relative; overflow:hidden;
}
.page-hero-grid {
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(90,191,166,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(90,191,166,.05) 1px, transparent 1px);
  background-size:48px 48px;
  pointer-events:none;
}
.page-hero-circle {
  position:absolute; right:-120px; bottom:-120px;
  width:480px; height:480px; border-radius:50%;
  border:1px solid rgba(90,191,166,.07); pointer-events:none;
}
.breadcrumb {
  position:relative; z-index:2;
  font-family:'Outfit', sans-serif; font-size:.67rem; letter-spacing:.1em;
  color:var(--dim-d); display:flex; align-items:center; gap:.5rem;
  margin-bottom:1.6rem;
}
.breadcrumb a { color:var(--dim-d); transition:color .2s; }
.breadcrumb a:hover { color:var(--green-on-dark); }
.breadcrumb .sep { opacity:.4; }
.breadcrumb .current { color:var(--green-on-dark); }
.page-hero-en {
  position:relative; z-index:2;
  font-family:'Outfit', sans-serif; font-size:.68rem; font-weight:300;
  letter-spacing:.26em; text-transform:uppercase;
  color:var(--green-on-dark); margin-bottom:.6rem;
}
.page-hero h1 {
  position:relative; z-index:2;
  font-family:'Noto Serif JP', serif;
  font-size:clamp(2rem, 5vw, 3.2rem);
  font-weight:700; letter-spacing:.04em; line-height:1.2;
  color:var(--ink-d); margin-bottom:1.1rem;
}
.page-hero-lead {
  position:relative; z-index:2;
  font-size:.9rem; line-height:2.1; color:var(--muted-d); max-width:560px;
}

/* ── Scroll reveal ── */
.rv { opacity:0; transform:translateY(18px); transition:opacity .65s ease, transform .65s ease; }
.rv.on { opacity:1; transform:none; }
.rv.d1 { transition-delay:.1s; }
.rv.d2 { transition-delay:.2s; }
.rv.d3 { transition-delay:.3s; }
.rv.d4 { transition-delay:.4s; }

/* ── Hero (front page) ── */
#hero {
  min-height:100vh; background:var(--forest);
  display:flex; align-items:center;
  position:relative; overflow:hidden; padding:0 6%;
}
.hero-bg-grid {
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(90,191,166,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(90,191,166,.05) 1px, transparent 1px);
  background-size:48px 48px;
}
.hero-bg-circle  { position:absolute; right:-160px; top:50%; transform:translateY(-52%); width:620px; height:620px; border-radius:50%; border:1px solid rgba(90,191,166,.12); pointer-events:none; }
.hero-bg-circle2 { position:absolute; right:-60px;  top:50%; transform:translateY(-50%); width:420px; height:420px; border-radius:50%; border:1px solid rgba(90,191,166,.07); background:radial-gradient(circle, rgba(90,191,166,.04) 0%, transparent 70%); pointer-events:none; }
.hero-dot-grid   { position:absolute; right:10%; top:50%; transform:translateY(-50%); width:260px; height:260px; background-image:radial-gradient(circle, rgba(90,191,166,.22) 1.2px, transparent 1.2px); background-size:20px 20px; pointer-events:none; mask-image:radial-gradient(ellipse 60% 60% at 50% 50%, black 40%, transparent 100%); -webkit-mask-image:radial-gradient(ellipse 60% 60% at 50% 50%, black 40%, transparent 100%); }
.hero-content { position:relative; z-index:2; max-width:660px; }
.hero-eyebrow { font-family:'Outfit', sans-serif; font-size:.68rem; font-weight:300; letter-spacing:.24em; text-transform:uppercase; color:var(--green-on-dark); margin-bottom:2rem; display:flex; align-items:center; gap:.7rem; }
.hero-eyebrow::before { content:''; width:26px; height:1px; background:var(--green-on-dark); }
.hero-title { font-family:'Noto Serif JP', serif; font-size:clamp(2.8rem, 6.5vw, 5.2rem); font-weight:700; line-height:1.18; letter-spacing:.04em; color:var(--ink-d); margin-bottom:1.2rem; }
.hero-title em { font-style:normal; color:var(--green-on-dark); }
.hero-subtitle { font-family:'Noto Serif JP', serif; font-size:clamp(.95rem, 1.6vw, 1.15rem); font-style:italic; color:var(--muted-d); margin-bottom:1.8rem; line-height:1.95; }
.hero-desc { font-size:.88rem; line-height:2.2; color:var(--muted-d); max-width:460px; margin-bottom:3rem; }
.hero-desc strong { color:var(--ink-d); font-weight:500; }
.hero-btns { display:flex; gap:1rem; flex-wrap:wrap; }
.scroll-hint { position:absolute; bottom:2.5rem; left:6%; display:flex; flex-direction:column; align-items:center; gap:.45rem; font-family:'Outfit', sans-serif; font-size:.6rem; letter-spacing:.16em; text-transform:uppercase; color:var(--dim-d); }
.scroll-hint-line { width:1px; height:34px; background:rgba(232,226,216,.2); position:relative; overflow:hidden; }
.scroll-hint-line::after { content:''; position:absolute; top:-100%; left:0; width:100%; height:100%; background:var(--green-on-dark); animation:scrollLine 2.2s 1.4s infinite; }
@keyframes scrollLine { to { top:100%; } }

/* ── About strip ── */
#about {
  background:var(--forest2);
  padding:6rem 6%;
  display:grid; grid-template-columns:1fr 1fr; gap:5rem; align-items:center;
}
.about-values { display:grid; grid-template-columns:1fr 1fr; gap:1.3rem; }
.av { background:rgba(90,191,166,.06); border:1px solid rgba(90,191,166,.1); border-radius:var(--r); padding:1.3rem 1.2rem; transition:background .2s; }
.av:hover { background:rgba(90,191,166,.1); }
.av-icon { width:28px; height:28px; margin-bottom:.7rem; color:var(--green-on-dark); }
.av h4 { font-size:.82rem; font-weight:500; color:var(--ink-d); margin-bottom:.3rem; }
.av p  { font-size:.74rem; color:var(--muted-d); line-height:1.7; }

/* ── Services Grid ── */
#services { background:var(--warm); padding:8rem 6%; }
.services-head { display:flex; align-items:flex-end; justify-content:space-between; margin-bottom:3.5rem; flex-wrap:wrap; gap:1rem; }
.services-more { font-family:'Outfit', sans-serif; font-size:.78rem; color:var(--green); display:flex; align-items:center; gap:.4rem; border-bottom:1px solid rgba(58,125,106,.25); padding-bottom:.15rem; transition:gap .2s, border-color .2s; }
.services-more:hover { gap:.7rem; border-color:var(--green); }
.services-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(260px,1fr)); gap:1.2rem; }
.service-card { background:var(--card); border:1px solid var(--bdr-l); border-radius:var(--rl); padding:2.2rem 2rem; position:relative; overflow:hidden; transition:all .3s ease; transform-style:preserve-3d; }
.service-card::after { content:''; position:absolute; bottom:0; left:0; width:0; height:2.5px; background:var(--green); transition:width .35s ease; border-radius:0 0 2px 2px; }
.service-card:hover { background:var(--card2); box-shadow:var(--sh3); border-color:rgba(58,125,106,.2); transform:translateY(-4px); }
.service-card:hover::after { width:100%; }
.service-card.new-service::after { background:var(--coral); }
.service-card-badge { position:absolute; top:1.3rem; right:1.3rem; font-family:'Outfit', sans-serif; font-size:.58rem; letter-spacing:.14em; color:var(--coral); background:rgba(192,72,40,.07); border:1px solid rgba(192,72,40,.18); padding:.18rem .55rem; border-radius:100px; }
.service-card-num  { font-family:'Outfit', sans-serif; font-size:.6rem; font-weight:300; color:var(--dim-l); letter-spacing:.1em; margin-bottom:1.3rem; }
.service-card-icon { width:46px; height:46px; border-radius:12px; display:flex; align-items:center; justify-content:center; background:rgba(58,125,106,.07); border:1px solid rgba(58,125,106,.14); margin-bottom:1.2rem; }
.service-card-icon.coral { background:rgba(192,72,40,.07); border-color:rgba(192,72,40,.14); }
.service-card-icon svg { width:21px; height:21px; }
.service-card-name { font-family:'Noto Serif JP', serif; font-size:1.1rem; font-weight:700; color:var(--ink-l); margin-bottom:.7rem; letter-spacing:.02em; }
.service-card-desc { font-size:.83rem; line-height:1.95; color:var(--muted-l); }
.service-card-tags { display:flex; flex-wrap:wrap; gap:.35rem; margin-top:1.1rem; }
.sc-tag { font-family:'Outfit', sans-serif; font-size:.59rem; letter-spacing:.05em; padding:.18rem .58rem; border-radius:100px; border:1px solid var(--bdr-l2); color:var(--dim-l); }

/* ── Flow section ── */
#flow { background:var(--sage); padding:8rem 6%; }
.flow-wrap { display:grid; grid-template-columns:1fr 1fr; gap:5rem; align-items:start; }
.flow-steps { display:flex; flex-direction:column; }
.flow-step { display:flex; gap:1.4rem; padding:1.6rem 0; border-bottom:1px solid rgba(26,24,20,.1); }
.flow-step:first-child { border-top:1px solid rgba(26,24,20,.1); }
.flow-step-num { width:36px; height:36px; border-radius:50%; flex-shrink:0; background:rgba(26,24,20,.06); border:1px solid rgba(26,24,20,.12); display:flex; align-items:center; justify-content:center; font-family:'Outfit', sans-serif; font-size:.7rem; font-weight:500; color:var(--green); transition:all .25s; }
.flow-step:hover .flow-step-num { background:var(--green); color:#fff; border-color:var(--green); }
.flow-step h4 { font-size:.9rem; font-weight:500; color:var(--ink-l); margin-bottom:.4rem; }
.flow-step p  { font-size:.8rem; line-height:1.88; color:var(--muted-l); }

/* ── Teaching section ── */
#teaching { background:var(--warm2); padding:8rem 6%; }
.teaching-inner { display:grid; grid-template-columns:1fr 1fr; gap:6rem; align-items:center; }
.teaching-visual { position:relative; padding-bottom:3rem; }
.code-window { background:#18202e; border-radius:var(--r); overflow:hidden; font-family:'Outfit', monospace; font-size:.76rem; box-shadow:var(--sh3); border:1px solid rgba(255,255,255,.06); }
.code-bar { background:#1e2840; padding:.65rem 1rem; display:flex; align-items:center; gap:.4rem; border-bottom:1px solid rgba(255,255,255,.05); }
.code-dot { width:8px; height:8px; border-radius:50%; }
.code-dot:nth-child(1){background:#ff5f57;} .code-dot:nth-child(2){background:#febc2e;} .code-dot:nth-child(3){background:#28c840;}
.code-fname { font-size:.64rem; color:rgba(255,255,255,.22); margin-left:.5rem; letter-spacing:.04em; }
.code-body  { padding:1.3rem 1.5rem; line-height:2.1; background:#18202e; }
.code-comment{color:#4a5280;}.code-tag{color:#c792ea;}.code-attr{color:#80cbc4;}
.code-val{color:#f78c6c;}.code-str{color:#c3e88d;}.code-text{color:#d8d4e8;}
.code-float { position:absolute; bottom:0; right:0; background:var(--card); border:1px solid var(--bdr-l); border-radius:var(--r); padding:1.1rem 1.4rem; width:196px; box-shadow:var(--sh2); animation:floatY 4s ease-in-out infinite; }
@keyframes floatY { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-6px)} }
.code-float-tag   { font-family:'Outfit', sans-serif; font-size:.56rem; letter-spacing:.14em; text-transform:uppercase; color:var(--coral); margin-bottom:.35rem; }
.code-float-title { font-family:'Noto Serif JP', serif; font-weight:700; font-size:.92rem; color:var(--ink-l); }
.code-float-sub   { font-size:.7rem; color:var(--muted-l); margin-top:.25rem; }
.teaching-list { list-style:none; display:flex; flex-direction:column; gap:.8rem; margin-bottom:2rem; }
.teaching-list li { display:flex; align-items:flex-start; gap:.65rem; font-size:.84rem; color:var(--muted-l); line-height:1.88; }
.teaching-list li::before { content:''; width:5px; height:5px; border-radius:50%; background:var(--green); margin-top:.62rem; flex-shrink:0; }

/* ── Why section ── */
#why { background:var(--forest2); padding:8rem 6%; }
.why-grid { display:grid; grid-template-columns:1fr 1fr; gap:1px; background:rgba(90,191,166,.1); border:1px solid rgba(90,191,166,.1); border-radius:var(--rl); overflow:hidden; margin-top:3rem; }
.why-item { background:var(--forest2); padding:2.2rem 2rem; transition:background .22s; }
.why-item:hover { background:rgba(90,191,166,.06); }
.why-item-num   { font-family:'Outfit', sans-serif; font-size:.6rem; font-weight:300; color:var(--green-on-dark); letter-spacing:.1em; margin-bottom:.8rem; }
.why-item-title { font-family:'Noto Serif JP', serif; font-weight:700; font-size:1rem; color:var(--ink-d); margin-bottom:.5rem; letter-spacing:.02em; }
.why-item-desc  { font-size:.81rem; line-height:1.88; color:var(--muted-d); }

/* ── Contact section (front page) ── */
#contact-section { background:var(--sage2); padding:9rem 6%; text-align:center; position:relative; overflow:hidden; }
#contact-section::before { content:''; position:absolute; top:-100px; right:-100px; width:380px; height:380px; border-radius:50%; border:1px solid rgba(26,24,20,.08); pointer-events:none; }
#contact-section::after  { content:''; position:absolute; bottom:-70px; left:-70px; width:260px; height:260px; border-radius:50%; border:1px solid rgba(26,24,20,.06); pointer-events:none; }
.contact-inner { position:relative; z-index:1; }
.contact-sub { color:var(--muted-l); font-size:.88rem; line-height:2.2; margin-bottom:3.5rem; }
.contact-form-box { max-width:560px; margin:0 auto; display:flex; flex-direction:column; gap:.9rem; text-align:left; }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:.9rem; }
.form-field { display:flex; flex-direction:column; gap:.35rem; }
.form-field label { font-family:'Outfit', sans-serif; font-size:.62rem; font-weight:400; color:var(--muted-l); letter-spacing:.1em; text-transform:uppercase; }
.form-field .req { color:var(--coral); margin-left:.3rem; font-size:.58rem; }
.form-field input,
.form-field textarea,
.form-field select {
  background:var(--card); border:1px solid var(--bdr-l2); border-radius:9px;
  padding:.72rem 1rem; color:var(--ink-l);
  font-family:'Noto Sans JP', sans-serif; font-size:.87rem;
  outline:none; transition:border-color .2s, box-shadow .2s;
  width:100%; appearance:none;
}
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus { border-color:var(--green); box-shadow:0 0 0 3px rgba(58,125,106,.1); }
.form-field textarea { resize:vertical; min-height:115px; }
.form-privacy { display:flex; align-items:flex-start; gap:.7rem; font-size:.78rem; color:var(--muted-l); line-height:1.7; }
.form-privacy input[type=checkbox] { width:16px; height:16px; flex-shrink:0; margin-top:.18rem; accent-color:var(--green); cursor:none; }
.form-privacy a { color:var(--green); border-bottom:1px solid rgba(58,125,106,.3); }
.form-submit-btn {
  display:flex; align-items:center; justify-content:center; gap:.55rem;
  padding:.9rem 2rem; background:var(--green); color:#fff;
  font-family:'Outfit', sans-serif; font-weight:500; font-size:.9rem;
  border:none; border-radius:100px; cursor:none;
  transition:all .22s; width:100%; letter-spacing:.03em;
  box-shadow:0 4px 18px rgba(58,125,106,.22);
}
.form-submit-btn:hover { background:#2d6055; transform:translateY(-2px); box-shadow:0 10px 28px rgba(58,125,106,.3); }
.form-note { font-size:.74rem; color:var(--dim-l); text-align:center; margin-top:.5rem; line-height:1.7; }
.form-thanks { display:none; text-align:center; padding:2rem 0; }
.form-thanks.show { display:block; }
.form-wrap.hide { display:none; }
.thanks-icon { width:56px; height:56px; border-radius:50%; background:rgba(58,125,106,.1); border:1px solid rgba(58,125,106,.2); display:flex; align-items:center; justify-content:center; margin:0 auto 1.2rem; }
.thanks-icon svg { width:26px; height:26px; }
.thanks-title { font-family:'Noto Serif JP', serif; font-weight:700; font-size:1.1rem; color:var(--ink-l); margin-bottom:.6rem; }
.thanks-text  { font-size:.84rem; color:var(--muted-l); line-height:1.95; }

/* ── CTA section (subpages) ── */
.cta-section { background:var(--forest); padding:7rem 6%; text-align:center; position:relative; overflow:hidden; }
.cta-section::before { content:''; position:absolute; top:-80px; right:-80px; width:360px; height:360px; border-radius:50%; border:1px solid rgba(90,191,166,.07); pointer-events:none; }
.cta-section-inner { position:relative; z-index:1; }
.cta-title { font-family:'Noto Serif JP', serif; font-size:clamp(1.5rem, 2.5vw, 2.2rem); font-weight:700; letter-spacing:.04em; color:var(--ink-d); margin-bottom:.9rem; }
.cta-lead  { font-size:.88rem; line-height:2.1; color:var(--muted-d); margin-bottom:2.8rem; }
.cta-btns  { display:flex; justify-content:center; gap:1rem; flex-wrap:wrap; }

/* ── Service page specific ── */
.service-block { display:grid; grid-template-columns:1fr 1fr; gap:5rem; align-items:start; padding:5rem 0; border-bottom:1px solid var(--bdr-l); max-width:1080px; margin:0 auto; }
.service-block:first-of-type { padding-top:0; }
.service-block:last-of-type  { border-bottom:none; padding-bottom:0; }
.service-block.reverse { direction:rtl; }
.service-block.reverse > * { direction:ltr; }
.service-block-num  { font-family:'Outfit', sans-serif; font-size:.62rem; font-weight:300; color:var(--dim-l); letter-spacing:.12em; margin-bottom:1rem; }
.service-block-icon { width:56px; height:56px; border-radius:16px; display:flex; align-items:center; justify-content:center; background:rgba(58,125,106,.07); border:1px solid rgba(58,125,106,.14); margin-bottom:1.4rem; }
.service-block-icon.coral { background:rgba(192,72,40,.07); border-color:rgba(192,72,40,.14); }
.service-block-icon svg { width:26px; height:26px; }
.service-block-name { font-family:'Noto Serif JP', serif; font-size:1.4rem; font-weight:700; color:var(--ink-l); margin-bottom:.8rem; letter-spacing:.02em; }
.service-block-desc { font-size:.87rem; line-height:2; color:var(--muted-l); margin-bottom:1.5rem; }
.service-block-list { list-style:none; display:flex; flex-direction:column; gap:.55rem; margin-bottom:1.5rem; }
.service-block-list li { display:flex; align-items:flex-start; gap:.65rem; font-size:.84rem; color:var(--muted-l); line-height:1.75; }
.service-block-list li::before { content:''; width:5px; height:5px; border-radius:50%; background:var(--green); margin-top:.58rem; flex-shrink:0; }
.trouble-box { background:rgba(58,125,106,.06); border:1px solid rgba(58,125,106,.14); border-radius:var(--r); padding:1.8rem 2rem; }
.trouble-box h4 { font-family:'Noto Serif JP', serif; font-weight:700; font-size:.95rem; color:var(--ink-l); margin-bottom:1rem; }
.trouble-list { list-style:none; display:flex; flex-direction:column; gap:.55rem; }
.trouble-list li { font-size:.82rem; color:var(--muted-l); line-height:1.7; display:flex; align-items:flex-start; gap:.6rem; }
.trouble-list li::before { content:'Q.'; font-family:'Outfit', sans-serif; font-size:.62rem; color:var(--green); font-weight:500; margin-top:.05rem; flex-shrink:0; }
.new-badge-pill { font-family:'Outfit', sans-serif; font-size:.62rem; letter-spacing:.14em; color:var(--coral); background:rgba(192,72,40,.07); border:1px solid rgba(192,72,40,.2); padding:.25rem .7rem; border-radius:100px; display:inline-block; margin-bottom:.7rem; }

/* ── Flow page specific ── */
.flow-phase { margin-bottom:5rem; }
.flow-phase:last-child { margin-bottom:0; }
.phase-badge { display:inline-flex; align-items:center; gap:.7rem; background:var(--green); color:#fff; font-family:'Outfit', sans-serif; font-size:.7rem; font-weight:500; letter-spacing:.1em; padding:.45rem 1.1rem; border-radius:100px; margin-bottom:2.5rem; }
.phase-badge.free { background:rgba(58,125,106,.12); color:var(--green); border:1px solid rgba(58,125,106,.2); }
.timeline-step { display:grid; grid-template-columns:80px 1fr; }
.timeline-step-left { display:flex; flex-direction:column; align-items:center; padding-top:.15rem; }
.timeline-num { width:44px; height:44px; border-radius:50%; background:var(--green); color:#fff; display:flex; align-items:center; justify-content:center; font-family:'Outfit', sans-serif; font-size:.75rem; font-weight:500; position:relative; z-index:1; box-shadow:0 2px 12px rgba(58,125,106,.25); }
.timeline-num.free { background:rgba(58,125,106,.1); color:var(--green); border:1.5px solid rgba(58,125,106,.3); box-shadow:none; }
.timeline-line { width:1px; flex:1; background:rgba(58,125,106,.2); margin:4px 0; }
.timeline-step:last-child .timeline-line { display:none; }
.timeline-body { padding:0 0 3rem; }
.timeline-body h3 { font-family:'Noto Serif JP', serif; font-weight:700; font-size:1.1rem; color:var(--ink-l); margin-bottom:.3rem; letter-spacing:.02em; }
.timeline-note { font-family:'Outfit', sans-serif; font-size:.68rem; color:var(--green); letter-spacing:.06em; margin-bottom:.75rem; }
.timeline-body p  { font-size:.86rem; line-height:1.95; color:var(--muted-l); margin-bottom:.9rem; }
.timeline-detail  { background:var(--card); border:1px solid var(--bdr-l); border-radius:var(--r); padding:1.4rem 1.6rem; margin-top:1rem; }
.timeline-detail h4  { font-size:.82rem; font-weight:500; color:var(--ink-l); margin-bottom:.7rem; }
.timeline-detail ul  { list-style:none; display:flex; flex-direction:column; gap:.42rem; }
.timeline-detail ul li { font-size:.8rem; color:var(--muted-l); display:flex; align-items:flex-start; gap:.6rem; }
.timeline-detail ul li::before { content:''; width:4px; height:4px; border-radius:50%; background:var(--green2); margin-top:.58rem; flex-shrink:0; }
.points-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(220px,1fr)); gap:1.2rem; margin-top:3rem; }
.point-card { background:rgba(90,191,166,.06); border:1px solid rgba(90,191,166,.14); border-radius:var(--r); padding:1.6rem 1.4rem; }
.point-card h4 { font-family:'Noto Serif JP', serif; font-weight:700; font-size:.95rem; color:var(--ink-d); margin-bottom:.5rem; }
.point-card p  { font-size:.8rem; color:var(--muted-d); line-height:1.82; }

/* ── FAQ page specific ── */
.cat-tabs { display:flex; gap:.6rem; flex-wrap:wrap; margin-bottom:3.5rem; }
.cat-tab { font-family:'Outfit', sans-serif; font-size:.76rem; font-weight:400; letter-spacing:.04em; padding:.46rem 1.1rem; border-radius:100px; border:1px solid var(--bdr-l2); color:var(--muted-l); background:var(--card); cursor:none; transition:all .22s; }
.cat-tab:hover { border-color:var(--green); color:var(--green); }
.cat-tab.active { background:var(--green); color:#fff; border-color:var(--green); }
.faq-group { margin-bottom:4rem; }
.faq-group:last-child { margin-bottom:0; }
.faq-group.hidden { display:none; }
.faq-group-title { font-family:'Noto Serif JP', serif; font-size:1.1rem; font-weight:700; color:var(--ink-l); margin-bottom:1.2rem; padding-bottom:.8rem; border-bottom:2px solid var(--green); display:flex; align-items:center; gap:.7rem; }
.faq-group-title::before { content:''; width:4px; height:1.1em; background:var(--green); border-radius:2px; display:inline-block; }
.faq-list { display:flex; flex-direction:column; }
.faq-item { border-bottom:1px solid var(--bdr-l); }
.faq-item:first-child { border-top:1px solid var(--bdr-l); }
.faq-q { width:100%; background:none; border:none; display:flex; align-items:flex-start; justify-content:space-between; gap:1.2rem; padding:1.3rem 0; cursor:none; text-align:left; }
.faq-q-text { display:flex; align-items:flex-start; gap:.75rem; font-size:.9rem; font-weight:500; color:var(--ink-l); line-height:1.7; font-family:'Noto Sans JP', sans-serif; }
.faq-q-label { font-family:'Outfit', sans-serif; font-size:.78rem; font-weight:600; color:var(--green); flex-shrink:0; margin-top:.06rem; letter-spacing:.02em; }
.faq-icon { width:22px; height:22px; border-radius:50%; border:1px solid var(--bdr-l2); display:flex; align-items:center; justify-content:center; flex-shrink:0; margin-top:.14rem; transition:all .25s; color:var(--green); }
.faq-icon svg { width:10px; height:10px; transition:transform .3s; }
.faq-item.open .faq-icon { background:var(--green); border-color:var(--green); color:#fff; }
.faq-item.open .faq-icon svg { transform:rotate(45deg); }
.faq-answer { max-height:0; overflow:hidden; transition:max-height .38s ease; }
.faq-answer-inner { padding:0 0 1.3rem 1.6rem; display:flex; align-items:flex-start; gap:.75rem; }
.faq-a-label { font-family:'Outfit', sans-serif; font-size:.78rem; font-weight:600; color:var(--coral); flex-shrink:0; margin-top:.06rem; }
.faq-a-text  { font-size:.86rem; line-height:1.95; color:var(--muted-l); }
.faq-item.open .faq-answer { max-height:400px; }

/* ── Contact page specific ── */
.contact-page-wrap { padding:7rem 6%; display:grid; grid-template-columns:1fr 1.6fr; gap:6rem; align-items:start; max-width:1080px; margin:0 auto; }
.contact-info-title { font-family:'Noto Serif JP', serif; font-size:1.6rem; font-weight:700; line-height:1.3; letter-spacing:.04em; color:var(--ink-l); margin-bottom:1.1rem; }
.contact-info-lead { font-size:.87rem; line-height:2.1; color:var(--muted-l); margin-bottom:2.5rem; }
.contact-info-items { display:flex; flex-direction:column; gap:1.2rem; }
.contact-info-item { display:flex; align-items:flex-start; gap:.9rem; padding:1.3rem 1.4rem; background:var(--card); border:1px solid var(--bdr-l); border-radius:var(--r); transition:box-shadow .2s; }
.contact-info-item:hover { box-shadow:var(--sh2); }
.contact-info-item-icon { width:36px; height:36px; border-radius:10px; background:rgba(58,125,106,.08); border:1px solid rgba(58,125,106,.15); display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.contact-info-item-icon svg { width:16px; height:16px; }
.contact-info-item-title { font-size:.8rem; font-weight:500; color:var(--ink-l); margin-bottom:.2rem; }
.contact-info-item-desc  { font-size:.76rem; color:var(--muted-l); line-height:1.7; }
.contact-form-card { background:var(--card); border:1px solid var(--bdr-l); border-radius:var(--rl); padding:2.8rem; box-shadow:var(--sh2); }
.contact-form-title { font-family:'Noto Serif JP', serif; font-weight:700; font-size:1.1rem; color:var(--ink-l); margin-bottom:.4rem; }
.contact-form-sub   { font-size:.8rem; color:var(--muted-l); margin-bottom:2rem; line-height:1.7; }

/* ── Blog ── */
.blog-wrap { padding:8rem 6%; display:grid; grid-template-columns:2fr 1fr; gap:4rem; align-items:start; max-width:1080px; margin:0 auto; }
.post-list { display:flex; flex-direction:column; gap:2rem; }
.post-card { background:var(--card); border:1px solid var(--bdr-l); border-radius:var(--rl); overflow:hidden; transition:all .3s ease; }
.post-card:hover { transform:translateY(-3px); box-shadow:var(--sh3); }
.post-card-thumb { aspect-ratio:16/9; overflow:hidden; background:var(--warm2); }
.post-card-thumb img { width:100%; height:100%; object-fit:cover; transition:transform .4s ease; }
.post-card:hover .post-card-thumb img { transform:scale(1.04); }
.post-card-body { padding:1.8rem 1.8rem 2rem; }
.post-card-meta { font-family:'Outfit', sans-serif; font-size:.65rem; color:var(--dim-l); letter-spacing:.08em; margin-bottom:.7rem; display:flex; align-items:center; gap:.8rem; }
.post-card-cat  { color:var(--green); background:rgba(58,125,106,.07); padding:.15rem .55rem; border-radius:100px; border:1px solid rgba(58,125,106,.15); }
.post-card-title { font-family:'Noto Serif JP', serif; font-weight:700; font-size:1.1rem; color:var(--ink-l); margin-bottom:.7rem; line-height:1.5; letter-spacing:.02em; }
.post-card-title a:hover { color:var(--green); }
.post-card-excerpt { font-size:.84rem; color:var(--muted-l); line-height:1.88; }
.post-card-more { display:inline-flex; align-items:center; gap:.4rem; margin-top:1rem; font-family:'Outfit', sans-serif; font-size:.76rem; color:var(--green); border-bottom:1px solid rgba(58,125,106,.25); padding-bottom:.1rem; transition:gap .2s; }
.post-card-more:hover { gap:.7rem; }
.sidebar { display:flex; flex-direction:column; gap:2rem; }
.sidebar-widget { background:var(--card); border:1px solid var(--bdr-l); border-radius:var(--r); padding:1.6rem 1.8rem; }
.sidebar-widget-title { font-family:'Noto Serif JP', serif; font-weight:700; font-size:.95rem; color:var(--ink-l); margin-bottom:1.2rem; padding-bottom:.7rem; border-bottom:1px solid var(--bdr-l); }
.sidebar-widget ul li { padding:.5rem 0; border-bottom:1px solid var(--bdr-l); font-size:.84rem; }
.sidebar-widget ul li:last-child { border-bottom:none; }
.sidebar-widget ul li a { color:var(--muted-l); transition:color .2s; }
.sidebar-widget ul li a:hover { color:var(--green); }
.pagination { display:flex; justify-content:center; gap:.5rem; margin-top:3rem; }
.pagination a, .pagination span { font-family:'Outfit', sans-serif; font-size:.8rem; width:38px; height:38px; display:flex; align-items:center; justify-content:center; border-radius:50%; border:1px solid var(--bdr-l2); color:var(--muted-l); transition:all .2s; }
.pagination a:hover, .pagination .current { background:var(--green); border-color:var(--green); color:#fff; }
.single-post { max-width:780px; margin:0 auto; padding:8rem 6%; }
.single-post-header { margin-bottom:3rem; }
.single-post-meta { font-family:'Outfit', sans-serif; font-size:.68rem; color:var(--dim-l); letter-spacing:.08em; display:flex; align-items:center; gap:.8rem; margin-bottom:1rem; }
.single-post-title { font-family:'Noto Serif JP', serif; font-size:clamp(1.6rem, 3vw, 2.4rem); font-weight:700; line-height:1.35; letter-spacing:.04em; color:var(--ink-l); }
.single-post-thumb { aspect-ratio:16/9; overflow:hidden; border-radius:var(--rl); margin-bottom:3rem; }
.single-post-thumb img { width:100%; height:100%; object-fit:cover; }
.post-content { font-size:.92rem; line-height:2.1; color:var(--muted-l); }
.post-content h2 { font-family:'Noto Serif JP', serif; font-weight:700; font-size:1.4rem; color:var(--ink-l); margin:2.5rem 0 1rem; letter-spacing:.02em; }
.post-content h3 { font-family:'Noto Serif JP', serif; font-weight:700; font-size:1.1rem; color:var(--ink-l); margin:2rem 0 .8rem; }
.post-content p  { margin-bottom:1.4rem; }
.post-content img { border-radius:var(--r); margin:1.5rem 0; }
.post-content a  { color:var(--green); border-bottom:1px solid rgba(58,125,106,.3); }
.post-content blockquote { border-left:3px solid var(--green); padding:.8rem 1.5rem; background:rgba(58,125,106,.04); border-radius:0 var(--r) var(--r) 0; margin:1.5rem 0; font-style:italic; color:var(--muted-l); }

/* ── Footer ── */
#tetlab-footer { background:var(--forest); padding:3rem 6%; border-top:1px solid var(--bdr-d); display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:1.5rem; }
.footer-logo img,
.footer-logo .custom-logo { height:26px !important; width:auto !important; filter:brightness(0) invert(1); opacity:.7; }
.footer-logo-text { font-family:'Outfit', sans-serif; font-weight:600; font-size:1.1rem; color:rgba(232,226,216,.7); letter-spacing:.03em; }
.footer-logo-text em { font-style:normal; color:var(--green-on-dark); }
.footer-nav { display:flex; gap:1.5rem; flex-wrap:wrap; }
.footer-nav a { font-family:'Outfit', sans-serif; font-size:.7rem; font-weight:300; color:rgba(232,226,216,.36); letter-spacing:.06em; transition:color .2s; }
.footer-nav a:hover { color:rgba(232,226,216,.75); }
.footer-copy { font-family:'Outfit', sans-serif; font-size:.62rem; font-weight:300; color:rgba(232,226,216,.28); letter-spacing:.06em; }

/* ── 404 ── */
.not-found-wrap { min-height:60vh; display:flex; align-items:center; justify-content:center; padding:8rem 6%; text-align:center; }
.not-found-num  { font-family:'Outfit', sans-serif; font-size:8rem; font-weight:300; color:var(--dim-l); line-height:1; margin-bottom:1.5rem; letter-spacing:-.04em; }
.not-found-title { font-family:'Noto Serif JP', serif; font-size:1.4rem; font-weight:700; color:var(--ink-l); margin-bottom:1rem; }
.not-found-desc { font-size:.88rem; color:var(--muted-l); line-height:2; margin-bottom:2.5rem; }

/* ── Responsive ── */
@media (max-width:820px) {
  body { cursor:auto; }
  #tetlab-cursor, #tetlab-cursor-ring { display:none; }
  .nav-menu { display:none; }
  #about { grid-template-columns:1fr; gap:3rem; }
  .flow-wrap, .teaching-inner { grid-template-columns:1fr; }
  .code-float { display:none; }
  #why .why-grid { grid-template-columns:1fr; }
  .service-block, .service-block.reverse { grid-template-columns:1fr; gap:2.5rem; direction:ltr; }
  .contact-page-wrap { grid-template-columns:1fr; gap:3rem; }
  .contact-form-card { padding:1.8rem 1.4rem; }
  .blog-wrap { grid-template-columns:1fr; }
  .form-row { grid-template-columns:1fr; }
  #tetlab-footer { flex-direction:column; }
  .single-post { padding:6rem 5%; }
}