@charset "utf-8";
/* =========================================================
   介護準備ナビ  —  提案用デモ  (依頼 5597919 / Kyoryoku2026)
   制作: 坂倉  /  依存ライブラリなし・静的 HTML/CSS/JS
   ========================================================= */

:root{
  --bg:#faf7f2;
  --surface:#ffffff;
  --surface-2:#f4efe6;
  --ink:#2f3a37;
  --ink-soft:#5c6b66;
  --ink-mute:#8a958f;
  --primary:#3f8f7c;
  --primary-dark:#2f6e60;
  --primary-soft:#e4f0ec;
  --accent:#e0885f;
  --accent-soft:#fbe9dd;
  --line:#e7ded2;
  --danger:#c1614b;
  --ok:#3f8f7c;
  --radius:14px;
  --radius-lg:22px;
  --shadow:0 2px 8px rgba(60,50,40,.06), 0 12px 32px rgba(60,50,40,.06);
  --wrap:1100px;
  --font: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, system-ui, sans-serif;
  --font-head: "Zen Kaku Gothic New", var(--font);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg);
  font-size:17px;
  line-height:1.85;
  font-feature-settings:"palt";
  letter-spacing:.02em;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary-dark);text-underline-offset:3px}
h1,h2,h3,h4{font-family:var(--font-head);line-height:1.45;font-weight:700;color:var(--ink)}
:focus-visible{outline:3px solid var(--primary);outline-offset:2px;border-radius:4px}

.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:20px}
.section{padding:64px 0}
.section--tint{background:var(--surface-2)}
.lead{font-size:1.05rem;color:var(--ink-soft)}
.eyebrow{
  display:inline-block;font-family:var(--font-head);font-weight:700;
  font-size:.82rem;letter-spacing:.14em;color:var(--primary-dark);
  background:var(--primary-soft);padding:5px 14px;border-radius:999px;margin-bottom:14px;
}
.section-head{max-width:680px;margin-bottom:36px}
.section-head h2{font-size:clamp(1.5rem,4vw,2rem);margin-bottom:12px}
.center{text-align:center;margin-inline:auto}

/* ---------- demo banner ---------- */
.demo-note{
  background:#3a3330;color:#f3ebe2;font-size:.8rem;line-height:1.7;
  text-align:center;padding:8px 16px;letter-spacing:.03em;
}
.demo-note strong{color:#ffd9a8}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(250,247,242,.92);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line);
}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-head);font-weight:700;font-size:1.12rem;color:var(--ink);text-decoration:none}
.brand .mark{
  width:34px;height:34px;border-radius:10px;flex:none;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  display:grid;place-items:center;color:#fff;font-size:1rem;
}
.nav{display:flex;align-items:center;gap:4px}
.nav a{
  font-size:.93rem;font-weight:500;color:var(--ink-soft);text-decoration:none;
  padding:8px 12px;border-radius:9px;white-space:nowrap;
}
.nav a:hover{background:var(--primary-soft);color:var(--primary-dark)}
.nav a[aria-current="page"]{color:var(--primary-dark);font-weight:700}
.nav .btn{margin-left:8px}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:9px;width:44px;height:40px;cursor:pointer}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  display:block;width:20px;height:2px;background:var(--ink);margin:0 auto;position:relative;transition:.2s;
}
.nav-toggle span::before{content:"";position:absolute;top:-6px}
.nav-toggle span::after{content:"";position:absolute;top:6px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;justify-content:center;
  font-family:var(--font-head);font-weight:700;font-size:1rem;
  padding:14px 26px;border-radius:999px;border:2px solid transparent;
  background:var(--primary);color:#fff;text-decoration:none;cursor:pointer;
  transition:transform .12s ease, background .15s ease, box-shadow .15s ease;
}
.btn:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 8px 20px rgba(47,110,96,.25)}
.btn--lg{font-size:1.08rem;padding:18px 36px}
.btn--ghost{background:transparent;color:var(--primary-dark);border-color:var(--primary)}
.btn--ghost:hover{background:var(--primary-soft);color:var(--primary-dark);box-shadow:none}
.btn--accent{background:var(--accent)}
.btn--accent:hover{background:#c9744c}
.btn--block{width:100%}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:
  radial-gradient(1200px 500px at 78% -10%, var(--accent-soft), transparent 60%),
  radial-gradient(900px 500px at 10% 110%, var(--primary-soft), transparent 55%),
  var(--bg);
  padding:72px 0 80px;
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(1.9rem,5.2vw,3rem);line-height:1.35;margin-bottom:20px;letter-spacing:.01em}
.hero h1 .u{background:linear-gradient(transparent 66%, var(--accent-soft) 66%)}
.hero p{font-size:1.08rem;color:var(--ink-soft);margin-bottom:28px;max-width:34em}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);padding:26px;
}
.hero-card h3{font-size:1.05rem;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.hero-steps{list-style:none;display:grid;gap:12px}
.hero-steps li{display:flex;gap:12px;align-items:flex-start;font-size:.95rem;color:var(--ink-soft)}
.hero-steps .n{
  flex:none;width:26px;height:26px;border-radius:8px;background:var(--primary-soft);
  color:var(--primary-dark);font-family:var(--font-head);font-weight:700;font-size:.85rem;
  display:grid;place-items:center;margin-top:2px;
}

/* ---------- feature cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow);
}
.card .ico{
  width:46px;height:46px;border-radius:12px;background:var(--primary-soft);
  display:grid;place-items:center;font-size:1.3rem;margin-bottom:14px;
}
.card h3{font-size:1.08rem;margin-bottom:8px}
.card p{font-size:.92rem;color:var(--ink-soft)}

/* ---------- steps big ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:flow}
.flow li{
  list-style:none;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:22px 18px;position:relative;
}
.flow li::before{
  counter-increment:flow;content:"STEP " counter(flow);
  font-family:var(--font-head);font-weight:700;font-size:.72rem;letter-spacing:.1em;
  color:var(--accent);
}
.flow h3{font-size:1rem;margin:6px 0}
.flow p{font-size:.88rem;color:var(--ink-soft)}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;
  border-radius:var(--radius-lg);padding:44px;text-align:center;
}
.cta-band h2{color:#fff;font-size:clamp(1.4rem,3.6vw,1.9rem);margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.9);margin-bottom:24px}
.cta-band .btn{background:#fff;color:var(--primary-dark)}
.cta-band .btn:hover{background:var(--accent-soft)}

/* ---------- diagnosis ---------- */
.shindan{max-width:760px;margin-inline:auto}
.progress{height:8px;background:var(--surface-2);border-radius:999px;overflow:hidden;margin-bottom:8px}
.progress > i{display:block;height:100%;background:var(--primary);border-radius:999px;transition:width .35s ease}
.progress-label{font-size:.82rem;color:var(--ink-mute);margin-bottom:28px;text-align:right}
.q-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);padding:34px;
}
.q-card h2{font-size:1.25rem;margin-bottom:6px}
.q-num{font-family:var(--font-head);color:var(--accent);font-weight:700;font-size:.85rem;letter-spacing:.08em}
.opts{display:grid;gap:12px;margin:22px 0 26px}
.opt{
  display:flex;gap:12px;align-items:flex-start;padding:16px 18px;
  border:2px solid var(--line);border-radius:var(--radius);background:var(--bg);
  cursor:pointer;font-size:1rem;transition:border-color .15s, background .15s;
}
.opt:hover{border-color:var(--primary)}
.opt input{margin-top:5px;accent-color:var(--primary);width:18px;height:18px;flex:none}
.opt.is-selected{border-color:var(--primary);background:var(--primary-soft)}
.q-nav{display:flex;justify-content:space-between;gap:12px}

.result{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:34px;margin-bottom:26px}
.result .badge{
  display:inline-block;font-family:var(--font-head);font-weight:700;
  padding:6px 16px;border-radius:999px;font-size:.9rem;margin-bottom:14px;
}
.badge--a{background:var(--primary-soft);color:var(--primary-dark)}
.badge--b{background:#fdf0d9;color:#a9772a}
.badge--c{background:var(--accent-soft);color:#b25733}
.result h2{font-size:1.5rem;margin-bottom:12px}
.result .score{font-size:.85rem;color:var(--ink-mute);margin-top:18px}

.checklist{list-style:none;display:grid;gap:10px;margin-top:8px}
.checklist li{
  display:flex;gap:12px;align-items:flex-start;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;
}
.checklist input{width:20px;height:20px;margin-top:3px;accent-color:var(--primary);flex:none}
.checklist label{font-size:.96rem;cursor:pointer}
.checklist li.is-done label{color:var(--ink-mute);text-decoration:line-through}
.checklist .cat{
  font-size:.72rem;font-family:var(--font-head);font-weight:700;letter-spacing:.06em;
  color:var(--primary-dark);background:var(--primary-soft);border-radius:6px;
  padding:2px 8px;margin-left:auto;white-space:nowrap;align-self:flex-start;
}
.save-hint{font-size:.82rem;color:var(--ink-mute);margin-top:14px;display:flex;gap:8px;align-items:center}

/* ---------- region lookup ---------- */
.region-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:30px;max-width:760px;margin-inline:auto}
.field{display:grid;gap:8px;margin-bottom:22px}
.field label{font-family:var(--font-head);font-weight:700;font-size:.95rem}
.field select{
  font:inherit;font-size:1rem;padding:14px 16px;border:2px solid var(--line);
  border-radius:var(--radius);background:var(--bg);color:var(--ink);
}
.field select:focus{border-color:var(--primary);outline:none}
.region-result{display:grid;gap:14px}
.region-card{border:1px solid var(--line);border-radius:var(--radius);padding:20px;background:var(--bg)}
.region-card h3{font-size:1.05rem;margin-bottom:6px}
.region-card dl{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;font-size:.92rem;margin-top:8px}
.region-card dt{color:var(--ink-mute);font-weight:500}

/* ---------- articles / QA ---------- */
.art-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.art{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.art .thumb{aspect-ratio:16/10;background:linear-gradient(135deg,var(--primary-soft),var(--accent-soft));display:grid;place-items:center;font-size:2rem;color:var(--primary-dark)}
.art .body{padding:20px}
.art .tag{font-size:.75rem;color:var(--accent);font-family:var(--font-head);font-weight:700;letter-spacing:.06em}
.art h3{font-size:1rem;margin:6px 0 8px}
.art p{font-size:.88rem;color:var(--ink-soft)}

.qa{max-width:820px;margin-inline:auto;display:grid;gap:12px}
.qa details{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.qa summary{
  list-style:none;cursor:pointer;padding:18px 22px;font-family:var(--font-head);
  font-weight:700;font-size:1rem;display:flex;gap:12px;align-items:flex-start;
}
.qa summary::-webkit-details-marker{display:none}
.qa summary::before{content:"Q";flex:none;width:24px;height:24px;border-radius:7px;background:var(--primary-soft);color:var(--primary-dark);display:grid;place-items:center;font-size:.85rem}
.qa details[open] summary{border-bottom:1px solid var(--line)}
.qa .a{padding:16px 22px 20px;font-size:.95rem;color:var(--ink-soft)}

/* ---------- callout ---------- */
.callout{
  background:var(--accent-soft);border:1px solid #f0cbb0;border-radius:var(--radius);
  padding:18px 20px;font-size:.9rem;color:#8a5136;display:flex;gap:12px;
}
.callout .ico{flex:none;font-size:1.1rem}

/* ---------- footer ---------- */
.site-footer{background:#33403c;color:#cdd8d3;padding:52px 0 30px;font-size:.9rem}
.site-footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;margin-bottom:32px}
.site-footer h4{color:#fff;font-size:.95rem;margin-bottom:12px}
.site-footer a{color:#cdd8d3;text-decoration:none;display:block;padding:3px 0}
.site-footer a:hover{color:#fff}
.site-footer .fine{border-top:1px solid rgba(255,255,255,.14);padding-top:20px;color:#9fb0aa;font-size:.8rem;line-height:1.8}

/* ---------- utilities ---------- */
.stack-lg > * + *{margin-top:20px}
.mt-24{margin-top:24px}
.hidden{display:none !important}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .cards,.art-grid{grid-template-columns:1fr 1fr}
  .flow{grid-template-columns:1fr 1fr}
  .site-footer .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  body{font-size:16px}
  .section{padding:48px 0}
  .nav{
    position:fixed;inset:66px 0 auto 0;background:var(--surface);flex-direction:column;
    align-items:stretch;gap:2px;padding:14px 18px 20px;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow);transform:translateY(-140%);transition:transform .25s ease;
  }
  .nav.is-open{transform:translateY(0)}
  .nav a{padding:12px 10px}
  .nav .btn{margin:8px 0 0}
  .nav-toggle{display:block}
  .cards,.art-grid,.flow,.site-footer .cols{grid-template-columns:1fr}
  .cta-band{padding:32px 22px}
  .q-card,.result,.region-box{padding:24px 18px}
  .region-card dl{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;scroll-behavior:auto !important}
}