/* =========================================================
   アロマの教科書 — botanical & elegant
   生成り × セージグリーン × テラコッタ / 明朝体見出し
   ========================================================= */

:root{
  --cream:#FBF8F1;
  --cream-2:#F4EEE2;
  --paper:#FFFFFF;
  --ink:#33362E;
  --ink-soft:#5E6258;
  --muted:#8A8D80;
  --sage:#6E7F63;
  --sage-deep:#56654C;
  --sage-soft:#9CAE8F;
  --sage-mist:#E7EDE1;
  --clay:#C07A55;
  --clay-deep:#A9633F;
  --gold:#C2A368;
  --line:#E3DCCB;
  --shadow:0 14px 40px -18px rgba(70,80,55,.35);
  --shadow-soft:0 6px 24px -14px rgba(70,80,55,.3);
  --radius:18px;
  --maxw:1120px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans JP",system-ui,-apple-system,"Hiragino Kaku Gothic ProN","Meiryo",sans-serif;
  color:var(--ink);
  background:var(--cream);
  line-height:1.9;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  letter-spacing:.02em;
}
img{max-width:100%;display:block;}
a{color:var(--clay-deep);text-decoration:none;transition:.2s;}
a:hover{color:var(--clay);}

h1,h2,h3,h4,.serif{
  font-family:"Shippori Mincho","Noto Serif JP",serif;
  font-weight:600;
  letter-spacing:.04em;
  line-height:1.5;
  color:var(--ink);
}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px;}
.narrow{max-width:760px;margin:0 auto;padding:0 22px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(251,248,241,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header .bar{display:flex;align-items:center;justify-content:space-between;padding:14px 22px;max-width:var(--maxw);margin:0 auto;gap:18px;}
.brand{display:flex;align-items:center;gap:11px;}
.brand .logo{width:34px;height:34px;flex:none;}
.brand .name{font-family:"Shippori Mincho",serif;font-size:1.18rem;font-weight:600;color:var(--sage-deep);letter-spacing:.06em;}
.brand .name small{display:block;font-family:"Noto Sans JP";font-size:.62rem;color:var(--muted);letter-spacing:.18em;font-weight:400;}
.nav{display:flex;align-items:center;gap:24px;}
.nav a{color:var(--ink-soft);font-size:.92rem;font-weight:500;}
.nav a:hover{color:var(--sage-deep);}
.nav .btn-cta{padding:9px 18px;font-size:.85rem;}
.nav-toggle{display:none;background:none;border:none;font-size:1.6rem;color:var(--sage-deep);cursor:pointer;}

/* ---------- buttons ---------- */
.btn-cta{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--clay);color:#fff;
  padding:14px 26px;border-radius:999px;font-weight:600;font-size:.95rem;
  box-shadow:0 10px 24px -10px rgba(170,99,63,.7);
  border:none;cursor:pointer;letter-spacing:.04em;
}
.btn-cta:hover{background:var(--clay-deep);color:#fff;transform:translateY(-1px);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;color:var(--sage-deep);
  padding:13px 25px;border-radius:999px;font-weight:600;font-size:.95rem;
  border:1.5px solid var(--sage-soft);
}
.btn-ghost:hover{background:var(--sage-mist);color:var(--sage-deep);}
.btn-line{background:#06C755;box-shadow:0 10px 24px -10px rgba(6,199,85,.6);}
.btn-line:hover{background:#05B84C;color:#fff;}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(110% 80% at 85% -10%, var(--sage-mist) 0%, transparent 55%),
    linear-gradient(180deg,var(--cream) 0%,var(--cream-2) 100%);
  padding:72px 0 64px;
}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.hero .eyebrow{display:inline-block;font-size:.78rem;letter-spacing:.3em;color:var(--clay-deep);font-weight:600;margin-bottom:18px;}
.hero h1{font-size:2.7rem;line-height:1.45;margin:0 0 22px;}
.hero h1 .accent{color:var(--sage-deep);}
.hero p.lead{font-size:1.05rem;color:var(--ink-soft);margin:0 0 30px;max-width:30em;}
.hero .actions{display:flex;gap:14px;flex-wrap:wrap;}
.hero-art{position:relative;aspect-ratio:1/1;}
.hero-art svg{width:100%;height:100%;filter:drop-shadow(0 20px 40px rgba(86,101,76,.25));}

/* ---------- sections ---------- */
section.block{padding:64px 0;}
section.block.alt{background:var(--cream-2);}
.section-head{text-align:center;max-width:640px;margin:0 auto 46px;}
.section-head .kicker{font-size:.74rem;letter-spacing:.32em;color:var(--clay-deep);font-weight:600;display:block;margin-bottom:14px;}
.section-head h2{font-size:1.9rem;margin:0 0 14px;}
.section-head p{color:var(--ink-soft);margin:0;}
.leaf-divider{display:flex;align-items:center;justify-content:center;gap:14px;margin:8px 0 0;color:var(--sage-soft);}
.leaf-divider::before,.leaf-divider::after{content:"";height:1px;width:60px;background:var(--line);}

/* ---------- cards grid ---------- */
.grid{display:grid;gap:22px;}
.grid.cols-3{grid-template-columns:repeat(3,1fr);}
.grid.cols-4{grid-template-columns:repeat(4,1fr);}
.grid.cols-2{grid-template-columns:repeat(2,1fr);}

.card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow-soft);transition:.25s;position:relative;overflow:hidden;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--sage-soft);}
.card .cat{font-size:.72rem;letter-spacing:.16em;color:var(--clay-deep);font-weight:600;}
.card h3{font-size:1.18rem;margin:8px 0 10px;}
.card p{font-size:.9rem;color:var(--ink-soft);margin:0;}
.card .more{display:inline-block;margin-top:16px;font-size:.85rem;font-weight:600;color:var(--sage-deep);}
.card .more::after{content:" →";}

/* oil card */
.oil-card{display:flex;flex-direction:column;}
.oil-card .badge-note{display:inline-block;font-size:.68rem;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:2px 10px;margin-top:12px;width:fit-content;}
.oil-card .en{font-family:"Shippori Mincho",serif;font-style:italic;color:var(--sage-soft);font-size:.82rem;}

.tagrow{display:flex;flex-wrap:wrap;gap:7px;margin-top:14px;}
.tag{font-size:.72rem;background:var(--sage-mist);color:var(--sage-deep);padding:4px 11px;border-radius:999px;font-weight:500;}

/* ---------- detail pages ---------- */
.page-hero{
  background:linear-gradient(180deg,var(--sage-mist) 0%,var(--cream) 100%);
  padding:54px 0 40px;border-bottom:1px solid var(--line);
}
.breadcrumb{font-size:.78rem;color:var(--muted);margin-bottom:18px;}
.breadcrumb a{color:var(--ink-soft);}
.breadcrumb span{margin:0 7px;color:var(--sage-soft);}
.page-hero h1{font-size:2.2rem;margin:0 0 12px;}
.page-hero .en{font-family:"Shippori Mincho",serif;font-style:italic;color:var(--sage);font-size:1rem;letter-spacing:.06em;}
.page-hero .lead{font-size:1.02rem;color:var(--ink-soft);margin:16px 0 0;max-width:42em;}

.content{padding:48px 0 30px;}
.content h2{font-size:1.5rem;margin:42px 0 16px;padding-left:16px;border-left:4px solid var(--clay);}
.content h3{font-size:1.18rem;margin:28px 0 12px;color:var(--sage-deep);}
.content p{margin:0 0 16px;}
.content ul{padding-left:0;list-style:none;margin:0 0 18px;}
.content ul li{position:relative;padding-left:26px;margin-bottom:10px;}
.content ul li::before{content:"";position:absolute;left:4px;top:.7em;width:9px;height:9px;border-radius:50%;background:var(--sage-soft);}

.spec-table{width:100%;border-collapse:collapse;margin:8px 0 24px;background:var(--paper);border-radius:14px;overflow:hidden;box-shadow:var(--shadow-soft);}
.spec-table th,.spec-table td{text-align:left;padding:13px 18px;border-bottom:1px solid var(--line);font-size:.92rem;}
.spec-table th{background:var(--sage-mist);color:var(--sage-deep);width:38%;font-weight:600;}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:none;}

.note-box{
  background:var(--cream-2);border:1px solid var(--line);border-left:4px solid var(--gold);
  border-radius:12px;padding:20px 22px;margin:24px 0;font-size:.9rem;color:var(--ink-soft);
}
.note-box strong{color:var(--ink);}

.blend-recipe{
  background:var(--paper);border:1px dashed var(--sage-soft);border-radius:14px;padding:22px 24px;margin:18px 0;
}
.blend-recipe .drops{display:flex;flex-wrap:wrap;gap:14px;margin-top:12px;}
.blend-recipe .drop{background:var(--sage-mist);border-radius:12px;padding:10px 16px;font-size:.9rem;}
.blend-recipe .drop b{color:var(--sage-deep);}

/* social links (Instagram / LINE) */
.socials{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px;}
.soc{display:inline-flex;align-items:center;gap:7px;padding:8px 15px;border-radius:999px;font-size:.83rem;font-weight:600;border:1px solid transparent;}
.soc svg{width:18px;height:18px;}
.socials.profile .soc-ig{color:#fff;background:linear-gradient(45deg,#F58529,#DD2A7B,#8134AF);}
.socials.profile .soc-line{color:#fff;background:#06C755;}
.socials.footer .soc{color:rgba(255,255,255,.9);border-color:rgba(255,255,255,.3);background:rgba(255,255,255,.06);}
.socials.footer .soc:hover{background:rgba(255,255,255,.16);color:#fff;}

/* collection (特集) card accent */
.collection-card{background:linear-gradient(180deg,#fff 0%,var(--sage-mist) 220%);}
.collection-card .cat{letter-spacing:.18em;}

/* audience (pro/business) icon */
.aud-icon{width:60px;height:60px;border-radius:16px;background:var(--sage-mist);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;}
.aud-icon svg{width:38px;height:38px;}

/* monitored-by byline (E-E-A-T) */
.byline{display:inline-flex;align-items:center;gap:13px;background:var(--paper);border:1px solid var(--line);
  border-radius:999px;padding:8px 20px 8px 8px;margin:0 0 8px;box-shadow:var(--shadow-soft);}
.byline:hover{border-color:var(--sage-soft);}
.byline-ava{width:42px;height:42px;flex:none;border-radius:50%;background:var(--sage-mist);
  display:flex;align-items:center;justify-content:center;overflow:hidden;}
.byline-ava svg{width:30px;height:30px;}
.byline-txt b{display:block;font-size:.9rem;color:var(--ink);font-weight:600;}
.byline-txt small{display:block;font-size:.74rem;color:var(--muted);margin-top:1px;}

/* chips of related oils / concerns */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:6px 0 26px;}
.chip{display:inline-flex;align-items:center;gap:6px;background:var(--paper);border:1px solid var(--line);
  border-radius:999px;padding:8px 16px;font-size:.86rem;color:var(--ink-soft);font-weight:500;}
.chip:hover{border-color:var(--clay);color:var(--clay-deep);}

/* ---------- faq ---------- */
.faq details{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:4px 20px;margin-bottom:12px;}
.faq summary{cursor:pointer;font-weight:600;padding:14px 0;list-style:none;font-size:.98rem;color:var(--ink);}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::before{content:"Q ";color:var(--clay);font-family:"Shippori Mincho",serif;}
.faq details[open] summary{border-bottom:1px solid var(--line);}
.faq .ans{padding:14px 0 16px;color:var(--ink-soft);font-size:.92rem;}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--sage-deep) 0%,var(--sage) 100%);
  color:#fff;border-radius:24px;padding:52px 44px;margin:8px auto;text-align:center;
  box-shadow:var(--shadow);
}
.cta-band h2{color:#fff;font-size:1.8rem;margin:0 0 14px;}
.cta-band p{color:rgba(255,255,255,.9);max-width:34em;margin:0 auto 26px;}
.cta-band .actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}
.cta-band .btn-cta{background:#fff;color:var(--clay-deep);}
.cta-band .btn-cta:hover{background:var(--cream);}
.cta-band .btn-line{background:#06C755;color:#fff;}
.cta-band .micro{font-size:.78rem;color:rgba(255,255,255,.75);margin-top:18px;}
.cta-band .deco{position:absolute;opacity:.16;}
.cta-band .deco.l{left:-30px;bottom:-40px;width:200px;}
.cta-band .deco.r{right:-30px;top:-40px;width:200px;transform:rotate(180deg);}

/* advisor card */
.advisor{display:grid;grid-template-columns:auto 1fr;gap:28px;align-items:center;background:var(--paper);
  border:1px solid var(--line);border-radius:20px;padding:32px;box-shadow:var(--shadow-soft);}
.advisor .ava{width:110px;height:110px;border-radius:50%;background:var(--sage-mist);display:flex;align-items:center;justify-content:center;}
.advisor .ava svg{width:64px;height:64px;}
.advisor h3{margin:0 0 4px;font-size:1.3rem;}
.advisor .role{color:var(--clay-deep);font-size:.85rem;font-weight:600;margin-bottom:12px;}
.advisor p{margin:0;color:var(--ink-soft);font-size:.93rem;}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.step{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:26px 22px;text-align:center;}
.step .n{width:42px;height:42px;border-radius:50%;background:var(--sage-mist);color:var(--sage-deep);
  font-family:"Shippori Mincho",serif;font-size:1.2rem;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;}
.step h3{font-size:1.05rem;margin:0 0 8px;}
.step p{font-size:.86rem;color:var(--ink-soft);margin:0;}

/* form */
.form-card{background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:34px;box-shadow:var(--shadow-soft);}
.form-card label{display:block;font-size:.86rem;font-weight:600;color:var(--ink);margin:16px 0 6px;}
.form-card input,.form-card textarea,.form-card select{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-family:inherit;font-size:.95rem;background:var(--cream);color:var(--ink);
}
.form-card input:focus,.form-card textarea:focus,.form-card select:focus{outline:none;border-color:var(--sage-soft);background:#fff;}
.form-card textarea{min-height:120px;resize:vertical;}
.form-card .submit{margin-top:24px;width:100%;justify-content:center;}
.form-or{text-align:center;color:var(--muted);font-size:.85rem;margin:24px 0;position:relative;}
.form-result{margin-top:14px;font-size:.9rem;text-align:center;}
.form-result.err{color:var(--clay-deep);background:#fbece4;border:1px solid #e8c4ad;border-radius:10px;padding:12px 14px;}
.form-thanks{margin-top:8px;background:var(--sage-mist);border:1px solid var(--sage-soft);border-radius:14px;padding:28px 24px;text-align:center;}
.form-thanks h3{margin:0 0 8px;color:var(--sage-deep);}
.form-thanks p{margin:0;color:var(--ink-soft);font-size:.92rem;}

/* ---------- floating CTA (mobile) ---------- */
.float-cta{position:fixed;right:18px;bottom:18px;z-index:60;display:none;}
.float-cta a{box-shadow:0 12px 30px -8px rgba(170,99,63,.7);}

/* ---------- footer ---------- */
.site-footer{background:var(--sage-deep);color:rgba(255,255,255,.82);padding:54px 0 28px;margin-top:60px;}
.site-footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px;}
.site-footer h4{color:#fff;font-size:1rem;margin:0 0 14px;}
.site-footer a{color:rgba(255,255,255,.8);font-size:.88rem;display:block;margin-bottom:9px;}
.site-footer a:hover{color:#fff;}
.site-footer .brand .name{color:#fff;}
.site-footer .brand .name small{color:rgba(255,255,255,.6);}
.site-footer .desc{font-size:.86rem;color:rgba(255,255,255,.7);margin:14px 0 0;max-width:28em;}
.disclaimer{border-top:1px solid rgba(255,255,255,.18);margin-top:36px;padding-top:22px;font-size:.74rem;color:rgba(255,255,255,.62);line-height:1.8;}
.copyright{text-align:center;font-size:.76rem;color:rgba(255,255,255,.55);margin-top:18px;}

/* index lists */
.letter-index{columns:3;column-gap:30px;}
.letter-index a{display:block;padding:8px 0;border-bottom:1px solid var(--line);font-size:.92rem;break-inside:avoid;}
.cat-pill{display:inline-block;background:var(--sage-mist);color:var(--sage-deep);font-size:.78rem;font-weight:600;padding:5px 14px;border-radius:999px;margin:0 8px 8px 0;}

/* ---------- responsive ---------- */
@media(max-width:880px){
  .hero .wrap{grid-template-columns:1fr;}
  .hero-art{max-width:340px;margin:0 auto;order:-1;}
  .hero h1{font-size:2.1rem;}
  .grid.cols-3,.grid.cols-4{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr;}
  .site-footer .cols{grid-template-columns:1fr;}
  .advisor{grid-template-columns:1fr;text-align:center;}
  .advisor .ava{margin:0 auto;}
  .letter-index{columns:2;}
  .nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:var(--cream);border-bottom:1px solid var(--line);padding:16px 22px;gap:14px;align-items:flex-start;}
  .nav.open{display:flex;}
  .nav-toggle{display:block;}
  .float-cta{display:block;}
}
@media(max-width:540px){
  .grid.cols-3,.grid.cols-4,.grid.cols-2{grid-template-columns:1fr;}
  .hero h1{font-size:1.8rem;}
  .cta-band{padding:40px 24px;}
  .letter-index{columns:1;}
}