/* =============================================================
   kurumahub / crambee  ―  「アナログ × デジタル」 思想サイト
   Design system  v0.1
   コンセプト：紙の温かみ(アナログ) × ターコイズ/グリーンの精密さ(デジタル)
   その対比そのものをビジュアル言語にする
   ============================================================= */

/* ---------- 1. Tokens ---------- */
:root{
  /* analog = 紙の温かみ */
  --paper:    #FBF8F1;
  --paper-2:  #F4EEE1;
  --paper-edge:#ECE3D0;

  /* ink */
  --ink:      #23262B;
  --ink-soft: #585E66;
  --ink-faint:#8A8F97;
  --white:    #FFFFFF;

  /* digital = ターコイズ × コバルトグリーン */
  --tq:       #12AFC2;
  --tq-deep:  #0A8597;
  --tq-tint:  #E4F6F8;
  --gn:       #1E9E6A;
  --gn-deep:  #167C52;
  --gn-tint:  #E5F4EC;

  --grad:     linear-gradient(118deg, #12AFC2 0%, #1AA88C 55%, #1E9E6A 100%);
  --grad-soft:linear-gradient(118deg, #E4F6F8 0%, #E8F5EF 100%);

  /* lines */
  --line:      #EBE3D3;   /* warm hairline */
  --line-cool: #CFE9E8;   /* cool hairline */

  /* type */
  --f-display: "Zen Maru Gothic", "Hiragino Maru Gothic ProN", system-ui, sans-serif;
  --f-body:    "Noto Sans JP", "Hiragino Kaku Gothic ProN", system-ui, sans-serif;
  --f-hand:    "Klee One", "Yu Mincho", serif;

  /* layout */
  --wrap: 1140px;
  --gut: clamp(20px, 5vw, 56px);
  --radius: 18px;
  --radius-lg: 28px;

  /* depth */
  --shadow-sm: 0 2px 10px rgba(35,38,43,.05);
  --shadow:    0 14px 40px -18px rgba(20,80,90,.28);
  --shadow-lg: 0 30px 70px -30px rgba(15,70,80,.40);
}

/* ---------- 2. Reset / base ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--f-body);
  color:var(--ink);
  background:var(--paper);
  font-size:17px;
  line-height:1.95;
  font-feature-settings:"palt" 1;
  letter-spacing:.02em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg{ max-width:100%; height:auto; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; }
h1,h2,h3,h4{ font-family:var(--f-display); font-weight:700; line-height:1.4; letter-spacing:.01em; margin:0; }
p{ margin:0; }
ul{ margin:0; padding:0; list-style:none; }

/* ---------- 3. Layout helpers ---------- */
.wrap{ width:100%; max-width:var(--wrap); margin-inline:auto; padding-inline:var(--gut); }
.section{ padding-block:clamp(64px,9vw,118px); position:relative; }
.section--paper2{ background:var(--paper-2); }
.section--ink{ background:#1B2227; color:#EAF0F1; }
.section--grad{ background:var(--grad); color:#fff; }
.center{ text-align:center; }
.mw-680{ max-width:680px; }
.mw-760{ max-width:760px; }
.mx-auto{ margin-inline:auto; }

/* eyebrow / kicker */
.eyebrow{
  display:inline-flex; align-items:center; gap:.5em;
  font-family:var(--f-body); font-weight:700;
  font-size:.82rem; letter-spacing:.16em;
  color:var(--tq-deep); text-transform:none;
  margin-bottom:18px;
}
.eyebrow::before{
  content:""; width:26px; height:2px; border-radius:2px;
  background:var(--grad);
}
.section--ink .eyebrow,.section--grad .eyebrow{ color:#fff; }
.section--ink .eyebrow::before,.section--grad .eyebrow::before{ background:rgba(255,255,255,.7); }

/* section heading */
.s-title{
  font-size:clamp(1.7rem,4.4vw,2.7rem);
  line-height:1.5; letter-spacing:.005em;
}
.s-lead{
  margin-top:22px; color:var(--ink-soft);
  font-size:clamp(1rem,1.6vw,1.12rem); line-height:2.05;
}
.section--ink .s-lead,.section--grad .s-lead{ color:rgba(255,255,255,.85); }

/* hand-written accent */
.hand{ font-family:var(--f-hand); font-weight:600; }
.u-mark{
  background:linear-gradient(transparent 62%, rgba(18,175,194,.26) 0);
  padding:0 .06em;
}
.u-mark--gn{ background:linear-gradient(transparent 62%, rgba(30,158,106,.26) 0); }
.tq{ color:var(--tq-deep); }
.gn{ color:var(--gn-deep); }

/* ---------- 4. Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.55em;
  font-family:var(--f-display); font-weight:700;
  font-size:1.02rem; line-height:1;
  padding:18px 30px; border-radius:999px; border:2px solid transparent;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
  white-space:nowrap;
}
.btn svg{ width:1.05em; height:1.05em; }
.btn--primary{ background:var(--grad); color:#fff; box-shadow:var(--shadow); }
.btn--primary:hover{ transform:translateY(-2px); box-shadow:var(--shadow-lg); }
.btn--ghost{ background:#fff; color:var(--ink); border-color:var(--line); box-shadow:var(--shadow-sm); }
.btn--ghost:hover{ border-color:var(--tq); color:var(--tq-deep); transform:translateY(-2px); }
.btn--line{ background:#06C755; color:#fff; }
.btn--line:hover{ transform:translateY(-2px); box-shadow:0 14px 30px -14px rgba(6,199,85,.6); }
.btn--white{ background:#fff; color:var(--tq-deep); }
.btn--white:hover{ transform:translateY(-2px); box-shadow:var(--shadow-lg); }
.btn--lg{ padding:21px 38px; font-size:1.1rem; }
.btn-row{ display:flex; flex-wrap:wrap; gap:14px; }

/* ---------- 5. Header ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(251,248,241,.82);
  backdrop-filter:saturate(150%) blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header__in{
  display:flex; align-items:center; justify-content:space-between;
  height:70px; gap:24px;
}
.brand{ display:flex; align-items:center; gap:11px; flex-shrink:0; }
.brand__mark{ height:34px; width:auto; }
.nav{ display:flex; align-items:center; gap:30px; margin-left:auto; }
.nav a{
  font-family:var(--f-display); font-weight:500; font-size:.97rem;
  color:var(--ink-soft); position:relative; padding:6px 0;
  transition:color .15s ease;
}
.nav a:hover,.nav a[aria-current="page"]{ color:var(--ink); }
.nav a[aria-current="page"]::after{
  content:""; position:absolute; left:0; right:0; bottom:-2px; height:2px;
  border-radius:2px; background:var(--grad);
}
.header-cta{ flex-shrink:0; }
.header-cta .btn{ padding:12px 22px; font-size:.95rem; }
.nav-toggle{ display:none; }

/* mobile nav */
@media (max-width:880px){
  .nav,.header-cta{ display:none; }
  .nav-toggle{
    display:inline-flex; flex-direction:column; gap:5px;
    background:none; border:0; padding:8px; margin-left:auto;
  }
  .nav-toggle span{ width:26px; height:2.5px; border-radius:3px; background:var(--ink); transition:.25s; }
  body.nav-open .nav-toggle span:nth-child(1){ transform:translateY(7.5px) rotate(45deg); }
  body.nav-open .nav-toggle span:nth-child(2){ opacity:0; }
  body.nav-open .nav-toggle span:nth-child(3){ transform:translateY(-7.5px) rotate(-45deg); }
  .mobile-nav{
    position:fixed; inset:70px 0 0; z-index:49;
    background:var(--paper);
    padding:34px var(--gut);
    transform:translateY(-12px); opacity:0; pointer-events:none;
    transition:.28s ease;
    display:flex; flex-direction:column; gap:6px;
  }
  body.nav-open .mobile-nav{ transform:none; opacity:1; pointer-events:auto; }
  .mobile-nav a{
    font-family:var(--f-display); font-weight:700; font-size:1.3rem;
    padding:16px 4px; border-bottom:1px solid var(--line);
  }
  .mobile-nav .btn{ margin-top:22px; }
}
@media (min-width:881px){ .mobile-nav{ display:none; } }

/* ---------- 6. Hero ---------- */
.hero{ position:relative; overflow:hidden; padding-block:clamp(56px,8vw,96px); }
.hero__grid{
  display:grid; grid-template-columns:1.05fr .95fr; gap:clamp(28px,5vw,64px);
  align-items:center;
}
.hero__kicker{
  display:inline-flex; align-items:center; gap:.6em;
  background:#fff; border:1px solid var(--line-cool);
  color:var(--tq-deep); font-weight:700; font-size:.86rem; letter-spacing:.04em;
  padding:8px 16px; border-radius:999px; box-shadow:var(--shadow-sm);
  margin-bottom:24px;
}
.hero__kicker .dot{ width:8px; height:8px; border-radius:50%; background:var(--grad); }
.hero h1{
  font-size:clamp(2.3rem,6vw,3.7rem); line-height:1.32; letter-spacing:.005em;
}
.hero h1 .ln{ display:block; }
.hero__sub{
  margin-top:26px; font-size:clamp(1.02rem,1.7vw,1.18rem);
  color:var(--ink-soft); line-height:2.1; max-width:30em;
}
.hero .btn-row{ margin-top:36px; }
.hero__note{ margin-top:18px; font-size:.86rem; color:var(--ink-faint); }

/* soft background marks */
.hero__bg{ position:absolute; inset:0; z-index:-1; pointer-events:none; opacity:.6; }

/* ---------- 7. Diagram primitives ---------- */
.fig{
  background:#fff; border:1px solid var(--line);
  border-radius:var(--radius-lg); padding:clamp(20px,3vw,30px);
  box-shadow:var(--shadow);
}
.fig svg{ width:100%; height:auto; }

/* paper card (analog) */
.paper-card{
  position:relative; background:#fff;
  border:1px solid var(--paper-edge); border-radius:14px;
  padding:20px 22px;
  box-shadow:var(--shadow-sm);
  background-image:repeating-linear-gradient(transparent,transparent 31px,rgba(35,38,43,.06) 31px,rgba(35,38,43,.06) 32px);
}
.paper-card::before{
  content:""; position:absolute; left:46px; top:0; bottom:0; width:1px;
  background:rgba(214,90,90,.35);
}
.paper-card__pin{
  position:absolute; top:-10px; left:50%; transform:translateX(-50%);
  width:18px; height:18px; border-radius:50%; background:var(--gn);
  box-shadow:0 3px 8px rgba(0,0,0,.2);
}

/* digital card */
.digi-card{
  background:#fff; border:1px solid var(--line-cool); border-radius:14px;
  padding:20px 22px; box-shadow:var(--shadow-sm);
  background-image:radial-gradient(rgba(18,175,194,.14) 1px, transparent 1px);
  background-size:14px 14px;
}

/* ---------- 8. Generic card grid ---------- */
.grid{ display:grid; gap:24px; }
.grid--2{ grid-template-columns:repeat(2,1fr); }
.grid--3{ grid-template-columns:repeat(3,1fr); }
.card{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  padding:30px 28px; box-shadow:var(--shadow-sm);
  transition:transform .2s ease, box-shadow .2s ease;
}
.card--lift:hover{ transform:translateY(-4px); box-shadow:var(--shadow); }
.card__ic{
  width:54px; height:54px; border-radius:14px;
  display:grid; place-items:center; margin-bottom:18px;
  background:var(--grad-soft); color:var(--tq-deep);
}
.card__ic svg{ width:28px; height:28px; }
.card h3{ font-size:1.18rem; margin-bottom:10px; }
.card p{ color:var(--ink-soft); font-size:.98rem; line-height:1.95; }

/* numbered steps */
.steps{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; counter-reset:step; }
.step{ position:relative; background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:34px 26px 28px; box-shadow:var(--shadow-sm); }
.step__no{
  font-family:var(--f-display); font-weight:700; font-size:1rem;
  width:46px; height:46px; border-radius:50%;
  background:var(--grad); color:#fff; display:grid; place-items:center;
  margin-bottom:18px;
}
.step h3{ font-size:1.22rem; margin-bottom:8px; }
.step p{ color:var(--ink-soft); font-size:.97rem; }
.step__visual{ margin-top:18px; }

/* ---------- 9. "vs / 共感" split ---------- */
.split{
  display:grid; grid-template-columns:1fr auto 1fr; align-items:center; gap:clamp(14px,3vw,34px);
}
.split__side h3{ font-size:1.3rem; margin-bottom:6px; }
.split__side p{ color:var(--ink-soft); font-size:.97rem; }
.split__vs{
  width:64px; height:64px; flex:none; border-radius:50%;
  display:grid; place-items:center; background:#fff;
  border:1px solid var(--line); box-shadow:var(--shadow-sm);
  font-family:var(--f-display); font-weight:700; color:var(--ink-faint);
}

/* ---------- 10. "しないこと" / list ---------- */
.dont-list{ display:grid; gap:14px; }
.dont-list li{
  display:flex; gap:16px; align-items:flex-start;
  background:#fff; border:1px solid var(--line); border-radius:14px;
  padding:20px 24px; box-shadow:var(--shadow-sm);
}
.dont-list .mk{
  flex:none; width:30px; height:30px; border-radius:9px; display:grid; place-items:center;
  background:var(--gn-tint); color:var(--gn-deep); margin-top:2px;
}
.dont-list b{ font-family:var(--f-display); font-size:1.05rem; }
.dont-list span{ display:block; color:var(--ink-soft); font-size:.95rem; margin-top:3px; }

/* ---------- 11. Credo block ---------- */
.credo{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius-lg);
  padding:clamp(30px,5vw,56px); box-shadow:var(--shadow); position:relative; overflow:hidden;
}
.credo::before{
  content:"”"; position:absolute; right:24px; top:-18px;
  font-family:var(--f-display); font-size:160px; color:var(--tq-tint); line-height:1;
}
.credo__label{ color:var(--tq-deep); font-weight:700; letter-spacing:.1em; font-size:.85rem; margin-bottom:16px; }
.credo__text{
  font-family:var(--f-display); font-weight:700;
  font-size:clamp(1.3rem,3vw,1.9rem); line-height:1.85; position:relative;
}

/* ---------- 12. FAQ ---------- */
.faq{ display:grid; gap:14px; }
.faq details{
  background:#fff; border:1px solid var(--line); border-radius:14px;
  padding:4px 26px; box-shadow:var(--shadow-sm);
}
.faq summary{
  list-style:none; cursor:pointer; padding:22px 38px 22px 0; position:relative;
  font-family:var(--f-display); font-weight:700; font-size:1.07rem; line-height:1.7;
}
.faq summary::-webkit-details-marker{ display:none; }
.faq summary::after{
  content:""; position:absolute; right:2px; top:28px;
  width:13px; height:13px; border-right:2.5px solid var(--tq); border-bottom:2.5px solid var(--tq);
  transform:rotate(45deg); transition:transform .25s ease;
}
.faq details[open] summary::after{ transform:rotate(-135deg); top:32px; }
.faq__a{ padding:0 0 24px; color:var(--ink-soft); line-height:2; }

/* ---------- 13. CTA band (4 channels) ---------- */
.cta-channels{ display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-top:38px; }
.channel{
  background:rgba(255,255,255,.12); border:1px solid rgba(255,255,255,.25);
  border-radius:var(--radius); padding:26px 20px; text-align:center;
  transition:transform .2s ease, background .2s ease;
}
.channel:hover{ transform:translateY(-4px); background:rgba(255,255,255,.2); }
.channel__ic{ width:50px; height:50px; margin:0 auto 14px; border-radius:14px; background:rgba(255,255,255,.18); display:grid; place-items:center; }
.channel__ic svg{ width:26px; height:26px; }
.channel b{ font-family:var(--f-display); display:block; font-size:1.05rem; }
.channel span{ font-size:.86rem; opacity:.85; }

/* ---------- 14. Footer ---------- */
.site-footer{ background:#171D22; color:#C4CCD1; padding-block:64px 30px; }
.footer-grid{ display:grid; grid-template-columns:1.3fr 1fr 1fr; gap:40px; }
.site-footer h4{ font-size:1rem; color:#fff; margin-bottom:16px; }
.site-footer a{ color:#AEB7BD; font-size:.93rem; line-height:2.3; }
.site-footer a:hover{ color:#fff; }
.footer-brand p{ color:#8C959B; font-size:.9rem; margin-top:14px; line-height:1.9; }
.footer-credo{ font-family:var(--f-display); color:#E6EBEE; font-size:.96rem; line-height:1.9; margin-top:8px; }
.footer-bottom{
  margin-top:48px; padding-top:22px; border-top:1px solid rgba(255,255,255,.1);
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
  font-size:.82rem; color:#7E878D;
}

/* ---------- 15. Misc blocks ---------- */
.note-band{
  background:var(--grad-soft); border:1px solid var(--line-cool);
  border-radius:var(--radius); padding:28px 30px; display:flex; gap:18px; align-items:flex-start;
}
.note-band .mk{ flex:none; width:42px; height:42px; border-radius:12px; background:#fff; display:grid; place-items:center; color:var(--tq-deep); box-shadow:var(--shadow-sm); }
.note-band p{ color:var(--ink-soft); font-size:.97rem; }
.note-band b{ font-family:var(--f-display); color:var(--ink); }

.lede{ font-size:clamp(1.1rem,2vw,1.35rem); line-height:2; font-family:var(--f-display); font-weight:500; }

/* info table (company) */
.info-table{ width:100%; border-collapse:collapse; background:#fff; border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; }
.info-table th,.info-table td{ text-align:left; padding:20px 26px; border-bottom:1px solid var(--line); vertical-align:top; font-size:.98rem; }
.info-table tr:last-child th,.info-table tr:last-child td{ border-bottom:0; }
.info-table th{ width:200px; font-family:var(--f-display); font-weight:700; background:var(--paper-2); color:var(--ink); }
.info-table td{ color:var(--ink-soft); }

/* locations */
.loc-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.loc{ background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:28px 26px; box-shadow:var(--shadow-sm); }
.loc__tag{ display:inline-block; font-family:var(--f-display); font-weight:700; font-size:.8rem; color:#fff; background:var(--grad); padding:5px 13px; border-radius:999px; margin-bottom:14px; }
.loc h3{ font-size:1.15rem; margin-bottom:6px; }
.loc p{ color:var(--ink-soft); font-size:.94rem; }

/* timeline */
.timeline{ position:relative; margin-top:10px; padding-left:30px; }
.timeline::before{ content:""; position:absolute; left:7px; top:6px; bottom:6px; width:2px; background:var(--line-cool); }
.timeline li{ position:relative; padding:0 0 26px 16px; }
.timeline li::before{ content:""; position:absolute; left:-30px; top:7px; width:16px; height:16px; border-radius:50%; background:#fff; border:3px solid var(--tq); }
.timeline .yr{ font-family:var(--f-display); font-weight:700; color:var(--tq-deep); }
.timeline p{ color:var(--ink-soft); font-size:.96rem; }

/* form */
.form-card{ background:#fff; border:1px solid var(--line); border-radius:var(--radius-lg); padding:clamp(26px,4vw,42px); box-shadow:var(--shadow); }
.field{ margin-bottom:22px; }
.field label{ display:block; font-family:var(--f-display); font-weight:700; font-size:.96rem; margin-bottom:9px; }
.field .req{ color:#D8593F; font-size:.8rem; margin-left:6px; }
.field input,.field textarea,.field select{
  width:100%; padding:15px 17px; font:inherit; font-size:1rem; color:var(--ink);
  background:var(--paper); border:1.5px solid var(--line); border-radius:12px;
  transition:border-color .15s ease, box-shadow .15s ease;
}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none; border-color:var(--tq); box-shadow:0 0 0 4px var(--tq-tint); background:#fff;
}
.field textarea{ min-height:150px; resize:vertical; }
.form-note{ font-size:.85rem; color:var(--ink-faint); margin-top:6px; }

/* contact methods */
.contact-methods{ display:grid; gap:16px; }
.contact-method{
  display:flex; gap:18px; align-items:center;
  background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:22px 24px; box-shadow:var(--shadow-sm);
}
.contact-method__ic{ flex:none; width:54px; height:54px; border-radius:14px; display:grid; place-items:center; background:var(--grad-soft); color:var(--tq-deep); }
.contact-method__ic svg{ width:28px; height:28px; }
.contact-method b{ font-family:var(--f-display); font-size:1.08rem; display:block; }
.contact-method p{ color:var(--ink-soft); font-size:.92rem; }
.contact-method .go{ margin-left:auto; color:var(--tq-deep); font-weight:700; }

/* ---------- 16. Motion (reveal) ---------- */
.reveal{ opacity:0; transform:translateY(22px); transition:opacity .7s ease, transform .7s ease; }
.reveal.in{ opacity:1; transform:none; }
@media (prefers-reduced-motion:reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
  html{ scroll-behavior:auto; }
}

/* ---------- 17. Responsive ---------- */
@media (max-width:900px){
  .hero__grid{ grid-template-columns:1fr; }
  .hero__fig{ order:-1; }
  .grid--3,.steps,.loc-grid{ grid-template-columns:1fr; }
  .grid--2{ grid-template-columns:1fr; }
  .cta-channels{ grid-template-columns:repeat(2,1fr); }
  .footer-grid{ grid-template-columns:1fr; gap:30px; }
  .split{ grid-template-columns:1fr; text-align:center; }
  .split__vs{ margin-inline:auto; }
  .info-table th{ width:130px; }
}
@media (max-width:520px){
  body{ font-size:16px; }
  .cta-channels{ grid-template-columns:1fr; }
  .btn{ width:100%; }
  .btn-row{ flex-direction:column; }
  .header-cta .btn,.faq summary{ width:auto; }
}