/* Belle Serve — shared design tokens & components (company site + X Decision page)
   Brand palette sampled from the Belle Serve logo:
   deep green #3E6F5C (wordmark) / mid green #4E8C74 (icon fill) / mint #C9E8D8 (ribbon) */
:root{
  color-scheme: light;
  --bg: #f5f9f6;
  --surface: #ffffff;
  --surface-raised: #ffffff;
  --ink: #16241e;
  --ink-2: #4b5d54;
  --muted: #7c8c83;
  --grid: #dde8e1;
  --border: rgba(22,36,30,0.10);
  --border-strong: rgba(22,36,30,0.18);
  --accent: #3e6f5c;
  --accent-ink: #ffffff;
  --accent-soft: #4e8c74;
  --mint: #c9e8d8;
  --placeholder: #9aab9f;
  --shadow: 0 1px 2px rgba(22,36,30,0.05), 0 24px 48px -24px rgba(22,36,30,0.22);
}
/* ダークモード自動切替は無効化(常にライトモード表示にする方針、2026-08-30)。
   端末のダークモード設定を検知して自動で切り替える機能は不要と判断し、
   下記の @media ブロックをコメントアウトしています。将来また自動切替を
   復活させたい場合は、このコメントを外すだけで元に戻ります。
   なお :root[data-theme="dark"] 側は元々「手動でdata-theme="dark"を
   指定した場合のみ効く」ブロックなので、今も生きたままです
   (現状どこにもdata-theme="dark"は指定していないため実害はありません)。
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme: dark;
    --bg: #0d1512;
    --surface: #16211c;
    --surface-raised: #1c2a23;
    --ink: #f1f7f4;
    --ink-2: #b9c9c1;
    --muted: #85988d;
    --grid: #24352c;
    --border: rgba(255,255,255,0.10);
    --border-strong: rgba(255,255,255,0.18);
    --accent: #5fa98c;
    --accent-ink: #08130f;
    --accent-soft: #4e8c74;
    --mint: #c9e8d8;
    --placeholder: #6f8378;
    --shadow: 0 1px 2px rgba(0,0,0,0.3), 0 24px 48px -24px rgba(0,0,0,0.6);
  }
}
*/
:root[data-theme="dark"]{
  color-scheme: dark;
  --bg: #0d1512;
  --surface: #16211c;
  --surface-raised: #1c2a23;
  --ink: #f1f7f4;
  --ink-2: #b9c9c1;
  --muted: #85988d;
  --grid: #24352c;
  --border: rgba(255,255,255,0.10);
  --border-strong: rgba(255,255,255,0.18);
  --accent: #5fa98c;
  --accent-ink: #08130f;
  --accent-soft: #4e8c74;
  --mint: #c9e8d8;
  --placeholder: #6f8378;
  --shadow: 0 1px 2px rgba(0,0,0,0.3), 0 24px 48px -24px rgba(0,0,0,0.6);
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0; color:var(--ink);
  background-color:var(--bg);
  background-image:
    radial-gradient(1200px 640px at 14% -8%, rgba(255,255,255,0.95), rgba(255,255,255,0) 55%),
    radial-gradient(1000px 760px at 88% 4%, rgba(201,232,216,0.5), rgba(201,232,216,0) 55%),
    radial-gradient(900px 620px at 50% 100%, rgba(201,232,216,0.4), rgba(201,232,216,0) 60%),
    linear-gradient(180deg, #ffffff 0%, #f5f9f6 40%, #ecf5f0 100%);
  font-family:"Noto Sans JP",system-ui,sans-serif;
  font-size:16px; line-height:1.8; -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}
h1,h2,h3{ font-family:"Shippori Mincho","Noto Sans JP",serif; font-weight:600; line-height:1.5; text-wrap:balance; margin:0; letter-spacing:.02em; }
.mono{ font-family:"JetBrains Mono","Noto Sans JP",monospace; font-variant-numeric:tabular-nums; }
a{ color:inherit; }
.wrap{ max-width:1160px; margin:0 auto; padding:0 28px; position:relative; }
@media (max-width:640px){ .wrap{ padding:0 20px; } }
.ph{ color:var(--placeholder); font-style:italic; }

/* ---- decorative flowing blobs ---- */
.blob{ position:absolute; border-radius:62% 38% 55% 45% / 45% 55% 45% 55%; filter:blur(2px); z-index:-1; pointer-events:none; opacity:.55; }
.blob-1{ width:520px; height:520px; top:-180px; right:-160px; background:radial-gradient(circle at 35% 30%, var(--mint), transparent 70%); }
.blob-2{ width:380px; height:380px; bottom:-140px; left:-140px; background:radial-gradient(circle at 60% 60%, color-mix(in srgb, var(--accent-soft) 35%, transparent), transparent 70%); }
@media (max-width:760px){ .blob{ opacity:.35; } .blob-1{ width:340px; height:340px; } .blob-2{ width:260px; height:260px; } }

/* ---- nav ---- */
.nav{ position:sticky; top:0; z-index:50; background:color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter:blur(10px); border-bottom:1px solid var(--border); }
.nav-inner{ display:flex; align-items:center; justify-content:space-between; height:72px; gap:16px; }
.brand{ display:flex; align-items:center; gap:12px; text-decoration:none; min-width:0; }
.brand-icon{ width:34px; height:34px; flex:none; display:block; }
.brand-text{ display:flex; flex-direction:column; justify-content:center; min-width:0; }
.brand-name{ font-family:"Shippori Mincho",serif; font-weight:600; font-size:19px; letter-spacing:.03em; color:var(--accent); white-space:nowrap; }
.brand-caption{ font-size:11px; color:var(--muted); letter-spacing:.04em; white-space:nowrap; }
.nav-links{ display:flex; align-items:center; gap:24px; font-size:14px; }
.nav-links a.navlink, .nav-links a.back{ text-decoration:none; color:var(--ink-2); display:flex; align-items:center; gap:6px; }
.nav-links a.navlink:hover, .nav-links a.back:hover{ color:var(--accent); }
@media (max-width:760px){ .nav-links a.navlink, .nav-links a.back .back-label{ display:none; } }
@media (max-width:480px){ .brand-caption{ display:none; } .nav-inner{ height:auto; padding:12px 0; } .brand-name{ font-size:17px; } }

.btn{ font-family:"Noto Sans JP",sans-serif; font-weight:700; font-size:14px; letter-spacing:.03em; border-radius:999px; padding:12px 22px; text-decoration:none; display:inline-flex; align-items:center; gap:8px; border:1px solid transparent; cursor:pointer; transition:transform .15s ease, border-color .15s ease, box-shadow .15s ease; }
.btn-primary{ background:var(--accent); color:var(--accent-ink); box-shadow:var(--shadow); }
.btn-primary:hover{ transform:translateY(-1px); }
.btn-primary:disabled{ opacity:.6; cursor:not-allowed; transform:none; }
.btn-ghost{ background:transparent; color:var(--ink); border-color:var(--border-strong); }
.btn-ghost:hover{ border-color:var(--accent); color:var(--accent); }

/* ---- hero ---- */
.hero{ padding:80px 0 68px; position:relative; overflow:hidden; }
.hero-grid{ display:grid; grid-template-columns:1.05fr 0.95fr; gap:56px; align-items:center; }
@media (max-width:960px){ .hero-grid{ grid-template-columns:1fr; gap:40px; } }
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-family:"Noto Sans JP",sans-serif; font-weight:700; font-size:12.5px; letter-spacing:.08em; color:var(--accent);
  border:1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  background:color-mix(in srgb, var(--accent) 8%, transparent);
  border-radius:100px; padding:7px 14px; margin-bottom:22px;
}
.eyebrow .dot{ width:6px; height:6px; border-radius:50%; background:var(--accent); animation:pulse 2s ease-in-out infinite; }
@keyframes pulse{ 0%,100%{ opacity:1; } 50%{ opacity:.35; } }
.hero h1{ font-size:clamp(30px,4.4vw,48px); }
.hero p.lead{ margin:24px 0 0; font-size:16.5px; color:var(--ink-2); max-width:48ch; }
.hero-ctas{ display:flex; gap:14px; margin-top:34px; flex-wrap:wrap; }
.hero-stats{ display:flex; gap:28px; margin-top:46px; padding-top:28px; border-top:1px solid var(--grid); flex-wrap:wrap; }
.stat .n{ font-family:"JetBrains Mono",monospace; font-weight:700; font-size:24px; font-variant-numeric:tabular-nums; color:var(--accent); }
.stat .l{ font-size:12.5px; color:var(--muted); margin-top:4px; }
.pillars-mini{ display:flex; gap:10px; margin-top:46px; flex-wrap:wrap; }
.pill{ font-family:"Noto Sans JP",sans-serif; font-size:12.5px; border:1px solid var(--border-strong); border-radius:100px; padding:7px 15px; color:var(--ink-2); }

/* ---- panel (mock dashboard / node graph) ---- */
.panel{ background:var(--surface); border:1px solid var(--border); border-radius:24px; box-shadow:var(--shadow); overflow:hidden; }
.panel-bar{ display:flex; align-items:center; justify-content:space-between; padding:14px 18px; border-bottom:1px solid var(--grid); }
.panel-bar .dots{ display:flex; gap:6px; }
.panel-bar .dots span{ width:8px; height:8px; border-radius:50%; background:var(--grid); }
.panel-bar .tag{ font-family:"JetBrains Mono",monospace; font-size:11px; color:var(--muted); }
.panel-bar .live{ display:flex; align-items:center; gap:6px; font-family:"JetBrains Mono",monospace; font-size:11px; color:var(--accent-soft); }
.panel-bar .live i{ width:6px; height:6px; border-radius:50%; background:var(--accent-soft); animation:pulse 1.6s ease-in-out infinite; }
.panel-body{ padding:20px; }
#node-canvas{ width:100%; height:280px; display:block; }
.kpi-row{ display:grid; grid-template-columns:repeat(3,1fr); gap:10px; margin-bottom:16px; }
.kpi{ background:var(--bg); border:1px solid var(--grid); border-radius:16px; padding:12px 14px; }
.kpi .l{ font-size:11px; color:var(--muted); }
.kpi .v{ font-family:"JetBrains Mono",monospace; font-weight:700; font-size:17px; margin-top:2px; font-variant-numeric:tabular-nums; }
.kpi .v.up::after{ content:"▲"; font-size:9px; color:var(--accent-soft); margin-left:5px; }
canvas#chart{ width:100%; height:150px; display:block; }
.legend{ display:flex; gap:16px; margin-top:12px; font-size:11.5px; color:var(--ink-2); flex-wrap:wrap; }
.legend span{ display:inline-flex; align-items:center; gap:6px; }
.legend i{ width:9px; height:9px; border-radius:2px; display:inline-block; }

/* ---- sections ---- */
section{ padding:92px 0; border-top:1px solid var(--grid); position:relative; }
section.no-border{ border-top:none; }
.section-head{ max-width:640px; margin-bottom:50px; }
.section-head .eyebrow{ margin-bottom:16px; color:var(--ink-2); border-color:var(--border); background:transparent; }
.section-head h2{ font-size:clamp(24px,3vw,32px); }
.section-head p{ color:var(--ink-2); margin-top:16px; font-size:15.5px; word-break:auto-phrase; }
/* Contact intro: this sentence is a touch long for the shared 640px measure and
   was wrapping at an awkward point on desktop. Give it a bit more room and keep
   it on one line once there's space for it; below that it wraps normally (fine
   on tablet/mobile, where the viewport is the limiting factor anyway). */
#contact .section-head{ max-width:760px; }
@media (min-width:861px){ #contact .section-head p{ white-space:nowrap; } }

/* ---- cards ---- */
.cards3{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
@media (max-width:860px){ .cards3{ grid-template-columns:1fr; } }
.card{ background:var(--surface); border:1px solid var(--border); border-radius:22px; padding:28px; transition:transform .18s ease, box-shadow .18s ease; }
.card:hover{ transform:translateY(-3px); box-shadow:var(--shadow); }
.card .num{ font-family:"JetBrains Mono",monospace; font-size:12px; color:var(--muted); }
.card .ico{ width:42px; height:42px; border-radius:14px; display:flex; align-items:center; justify-content:center; margin:16px 0 18px; font-size:19px; }
.card h3{ font-size:17px; margin-bottom:10px; }
.card p{ color:var(--ink-2); font-size:14.5px; margin:0; }
.card-link{ display:inline-flex; align-items:center; gap:6px; margin-top:16px; font-size:13.5px; font-weight:700; color:var(--accent); text-decoration:none; }
.c-dwh .ico{ background:color-mix(in srgb, var(--accent-soft) 14%, transparent); color:var(--accent-soft); }
.c-bi .ico{ background:color-mix(in srgb, var(--accent) 14%, transparent); color:var(--accent); }
.c-ai .ico{ background:color-mix(in srgb, var(--mint) 60%, transparent); color:var(--accent); }
.pain .ico{ background:color-mix(in srgb, var(--accent) 12%, transparent); color:var(--accent); }
.feat .ico{ background:color-mix(in srgb, var(--accent-soft) 14%, transparent); color:var(--accent-soft); }
.featgrid{ display:grid; grid-template-columns:repeat(2,1fr); gap:18px; }
@media (max-width:760px){ .featgrid{ grid-template-columns:1fr; } }

/* ---- BI teaser band (company site) ---- */
.bi-band{ background:var(--surface); border:1px solid var(--border); border-radius:28px; padding:0; overflow:hidden; display:grid; grid-template-columns:1.1fr 0.9fr; }
@media (max-width:860px){ .bi-band{ grid-template-columns:1fr; } }
.bi-band-text{ padding:50px; }
.bi-band-visual{ background:var(--bg); border-left:1px solid var(--grid); padding:34px; display:flex; flex-direction:column; justify-content:center; gap:12px; }
@media (max-width:860px){ .bi-band-visual{ border-left:none; border-top:1px solid var(--grid); } }
.bi-band .eyebrow{ margin-bottom:16px; }
.bi-band h2{ font-size:clamp(22px,3vw,28px); margin-bottom:14px; }
.bi-band p{ color:var(--ink-2); font-size:15px; margin:0 0 24px; max-width:52ch; }
.mini-bar{ display:flex; align-items:center; gap:10px; font-size:12.5px; }
.mini-bar .track{ flex:1; height:8px; border-radius:4px; background:var(--grid); overflow:hidden; }
.mini-bar .fill{ height:100%; border-radius:4px; }
.mini-bar .l{ width:88px; color:var(--ink-2); flex:none; }
.mini-bar .v{ width:38px; text-align:right; font-family:"JetBrains Mono",monospace; color:var(--ink-2); flex:none; }

/* ---- company info table ---- */
.info-table{ border:1px solid var(--border); border-radius:20px; overflow:hidden; background:var(--surface); }
.info-row{ display:grid; grid-template-columns:180px 1fr; border-top:1px solid var(--grid); }
.info-row:first-child{ border-top:none; }
@media (max-width:600px){ .info-row{ grid-template-columns:120px 1fr; } }
.info-row .k{ padding:18px 22px; font-family:"Noto Sans JP",sans-serif; font-size:12.5px; color:var(--muted); background:var(--bg); }
.info-row .v{ padding:18px 22px; font-size:14.5px; }
.info-row .v ul{ margin:0; padding-left:18px; }
.info-row .v li{ margin:4px 0; }
.contact-info .info-row .k{ background:transparent; }

.msg-grid{ display:grid; grid-template-columns:220px 1fr; gap:40px; align-items:start; }
@media (max-width:760px){ .msg-grid{ grid-template-columns:1fr; gap:20px; } }
.msg-name{ font-family:"Shippori Mincho",serif; font-weight:600; font-size:17px; }
.msg-role{ font-size:12.5px; color:var(--muted); margin-top:4px; }
.msg-quote{ font-size:17.5px; line-height:2; word-break:auto-phrase; }
.msg-quote::before{ content:"\201C"; color:var(--accent); font-family:Georgia,serif; font-size:28px; }

/* ---- contact ---- */
.contact-grid{ display:grid; grid-template-columns:0.9fr 1.1fr; gap:48px; }
@media (max-width:860px){ .contact-grid{ grid-template-columns:1fr; } }
.contact-sub{ font-weight:700; font-size:13px; color:var(--accent); letter-spacing:.04em; margin-bottom:12px; }
form.contact-form{ background:var(--surface); border:1px solid var(--border); border-radius:22px; padding:30px; display:grid; gap:16px; }
.field label{ display:block; font-size:12.5px; color:var(--ink-2); margin-bottom:6px; }
.field input, .field textarea, .field select{
  width:100%; border:1px solid var(--border-strong); border-radius:14px; padding:12px 14px;
  background:var(--bg); color:var(--ink); font-family:inherit; font-size:14.5px;
}
.field textarea{ resize:vertical; min-height:110px; }
.field input:focus, .field textarea:focus, .field select:focus{ outline:2px solid var(--accent-soft); outline-offset:1px; }
.form-note{ font-size:12px; color:var(--muted); margin:0; }
.field select{ appearance:none; -webkit-appearance:none; cursor:pointer;
  background-image:linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position:calc(100% - 20px) 50%, calc(100% - 15px) 50%; background-size:5px 5px; background-repeat:no-repeat; padding-right:38px; }
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
@media (max-width:560px){ .field-row{ grid-template-columns:1fr; } }
.field .req{ font-size:10.5px; font-weight:700; color:var(--accent); background:color-mix(in srgb, var(--accent) 10%, transparent); border-radius:6px; padding:1px 6px; margin-left:6px; }
.form-foot{ display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap; }
.hp-field{ position:absolute; left:-9999px; width:1px; height:1px; overflow:hidden; }
form.contact-form{ position:relative; }
form.contact-form[hidden], .form-success[hidden]{ display:none; }
.form-success{ background:var(--surface); border:1px solid var(--border); border-radius:22px; padding:44px 30px; text-align:center; box-shadow:var(--shadow); }
.form-success .mark{ width:48px; height:48px; border-radius:50%; background:color-mix(in srgb, var(--accent) 12%, transparent); color:var(--accent); display:flex; align-items:center; justify-content:center; margin:0 auto 16px; font-size:20px; font-weight:700; }
.form-success h3{ font-size:19px; margin-bottom:10px; }
.form-success p{ color:var(--ink-2); font-size:14px; margin:0 0 20px; }
.turnstile-field{ justify-self:start; }
.form-status{ font-size:13.5px; margin-top:-4px; min-height:1.4em; }
.form-status[data-state="ok"]{ color:var(--accent-soft); }
.form-status[data-state="error"]{ color:var(--accent); }

/* ---- flow (X Decision: how it works) ---- */
.flow{ display:grid; grid-template-columns:repeat(3,1fr); gap:0; position:relative; }
@media (max-width:820px){ .flow{ grid-template-columns:1fr; } }
.flow-step{ position:relative; padding:0 18px; text-align:center; }
.flow-step .num{ font-family:"JetBrains Mono",monospace; font-size:12px; color:var(--muted); }
.flow-node{
  width:66px; height:66px; margin:14px auto 18px; border-radius:22px;
  background:var(--surface); border:1px solid var(--border-strong); display:flex; align-items:center; justify-content:center;
  box-shadow:var(--shadow);
}
.flow-step h3{ font-size:15.5px; margin-bottom:8px; }
.flow-step p{ color:var(--ink-2); font-size:13.5px; margin:0; }
.flow-line{ display:none; }
@media (min-width:821px){
  .flow-line{ display:block; position:absolute; top:47px; left:calc(50% + 46px); right:calc(-50% + 46px); height:2px; background:repeating-linear-gradient(90deg, var(--border-strong) 0 6px, transparent 6px 12px); }
  .flow-step:last-child .flow-line{ display:none; }
}

/* ---- roadmap (X Decision) ---- */
.roadmap{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
@media (max-width:820px){ .roadmap{ grid-template-columns:1fr; } }
.rm{ border:1px solid var(--border); border-radius:20px; padding:24px; background:var(--surface); position:relative; }
.rm.now{ border-color:var(--accent); box-shadow:0 0 0 1px var(--accent) inset; }
.rm .tag{ font-family:"JetBrains Mono",monospace; font-size:11px; letter-spacing:.06em; color:var(--muted); }
.rm.now .tag{ color:var(--accent); }
.rm h3{ font-size:16px; margin:8px 0 8px; }
.rm p{ color:var(--ink-2); font-size:13.5px; margin:0; }

/* ---- closing cta band (X Decision) ---- */
.cta-band{ background:var(--surface); border:1px solid var(--border); border-radius:32px; padding:58px 46px; text-align:center; position:relative; overflow:hidden; }
@media (max-width:640px){ .cta-band{ padding:42px 26px; } }
.cta-band h2{ font-size:clamp(22px,3vw,28px); margin-bottom:14px; }
.cta-band p{ color:var(--ink-2); margin:0 0 26px; }

/* ---- footer ---- */
footer{ border-top:1px solid var(--grid); padding:40px 0; }
.foot-row{ display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:16px; font-size:13px; color:var(--muted); }
.foot-brand{ display:flex; align-items:center; gap:10px; }
.foot-brand img{ width:24px; height:24px; }
.foot-brand span{ font-family:"Shippori Mincho",serif; color:var(--ink-2); font-size:14px; }
.foot-row a{ text-decoration:none; color:var(--ink-2); }
.foot-row a:hover{ color:var(--accent); }
.foot-links{ display:flex; gap:18px; flex-wrap:wrap; }