/* ============================================================
   Kusumi Ecopark Hospital — All-on-4 Landing Page
   Tách từ file HTML gốc + tối ưu responsive mobile/desktop
   ============================================================ */

:root{
  --navy:#075487;
  --blue:#1d79a7;
  --teal:#009b7a;
  --green:#009b7a;
  --aqua:#9edbe7;
  --red:#d94a52;
  --ink:#173d5b;
  --muted:#647b8b;
  --bg:#f3fbfc;
  --white:#fff;
  --line:#d9edf0;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);line-height:1.55;background:#fff}
a{text-decoration:none;color:inherit}
img{max-width:100%}
.wrap{max-width:1180px;margin:auto;padding:0 24px}

/* ---------- Navigation ---------- */
.nav{height:72px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;background:#fff;z-index:20;border-bottom:1px solid #e8eef3;transition:box-shadow .25s}
.nav.scrolled{box-shadow:0 4px 18px rgba(7,84,135,.1)}
.nav-inner{width:100%;display:flex;justify-content:space-between;align-items:center;position:relative}
.brand-logo{height:58px;width:auto;max-width:245px;object-fit:contain;display:block}
.navlinks{display:flex;gap:20px;align-items:center;font-size:13px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;margin-left:auto}
.nav-toggle span{display:block;width:24px;height:3px;background:var(--navy);border-radius:2px;margin:5px 0;transition:transform .25s,opacity .25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

.topbar{background:#075487;color:#fff;text-align:center;padding:8px 18px;font-size:12px;font-weight:700;letter-spacing:.35px}

/* ---------- Buttons / badges ---------- */
.btn{display:inline-block;background:var(--teal);color:#fff;padding:13px 22px;border-radius:28px;font-weight:800}
.btn.alt{background:#fff;color:var(--navy);border:1px solid var(--navy)}
.jp-tag{display:inline-flex;align-items:center;gap:8px;color:var(--navy);font-weight:800;font-size:12px;letter-spacing:.5px;margin-bottom:8px}
.jp-dot{width:18px;height:18px;border-radius:50%;background:#d94a52;display:inline-block;box-shadow:0 0 0 6px #d94a5212}

/* ---------- Hero ---------- */
.hero{background:radial-gradient(circle at 12% 22%,#9edbe72b 0 34px,transparent 35px),radial-gradient(circle at 18% 31%,#009b7a18 0 24px,transparent 25px),linear-gradient(120deg,#edf9fb,#fff 62%);padding:64px 0 72px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:44px;align-items:center}
.kicker,.eyebrow{color:var(--green);font-weight:900;letter-spacing:1.3px;text-transform:uppercase;font-size:13px}
h1{font-size:clamp(36px,5vw,58px);line-height:1.02;margin:10px 0 18px;color:var(--navy)}
h2{font-size:clamp(28px,3.4vw,38px);line-height:1.15;color:var(--navy);margin:8px 0 14px}
.lead{font-size:19px;color:var(--muted)}
.hero-media{position:relative}
.hero-img{width:100%;height:440px;object-fit:cover;border-radius:24px;box-shadow:0 22px 55px #164a6c25}
.hero-media:after{content:"日本基準の医療環境";position:absolute;right:18px;top:18px;background:rgba(255,255,255,.94);color:var(--navy);padding:9px 13px;border-radius:999px;font-size:11px;font-weight:800;letter-spacing:.5px;box-shadow:0 6px 20px #0001}
.stamp{position:absolute;left:-18px;bottom:20px;background:#fff;padding:14px 18px;border-left:5px solid var(--red);box-shadow:0 8px 30px #0002;font-weight:800}
.proof{display:flex;gap:10px;flex-wrap:wrap;margin:26px 0}
.pill{background:#fff;border:1px solid var(--line);padding:9px 13px;border-radius:25px;font-size:13px;font-weight:700}

/* ---------- Sections ---------- */
section{padding:76px 0}
.soft{background:var(--bg)}
.dark{background:linear-gradient(120deg,#075487,#08779a);color:#fff}
.dark h2,.dark .eyebrow{color:#fff}
.center{text-align:center}
.sub{max-width:780px;margin:0 auto 34px;color:var(--muted)}
.note{font-size:12px;color:var(--muted)}
.note-spaced{margin-top:18px}

/* ---------- Video ---------- */
.video-hero{position:relative;padding-top:56.25%;border-radius:24px;overflow:hidden;background:#071d31;box-shadow:0 20px 50px #1234}
.video-hero video,.video-hero iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.caption{font-size:13px;color:var(--muted);margin-top:12px;text-align:center}

/* ---------- Compare ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.compare>div{border-radius:22px;padding:30px}
.clinic{background:#f6f7f8;color:#6d7882}
.hospital{background:#eaf7ed;border:2px solid #bfe5c5}
.hospital h3{color:#237b32}
.check{padding:8px 0;border-bottom:1px solid #dce7e1}
.check:last-child{border:0}

/* ---------- Cards ---------- */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:19px;padding:25px;box-shadow:0 8px 28px #13466b0b}
.num{font-size:28px;font-weight:900;color:var(--green)}
.card h3{margin:8px 0;color:var(--navy)}

/* ---------- Feature ---------- */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:center}
.feature img{width:100%;height:390px;object-fit:cover;border-radius:22px}
.bigline{font-size:30px;font-weight:900;color:var(--navy);line-height:1.2}

/* ---------- Reels ---------- */
.reels{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.reel{position:relative;padding-top:177%;border-radius:20px;overflow:hidden;background:#071d31}
.reel iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* ---------- Journey ---------- */
.journey{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
.step{padding:22px;border-top:4px solid var(--green);background:#fff;border-radius:12px;box-shadow:0 5px 20px #0000000d}
.step b{color:var(--navy)}

/* ---------- Food / recovery ---------- */
.food{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:center}
.foodbox{background:#fff;border-radius:22px;padding:30px;border:1px solid var(--line)}
.recovery-img{width:100%;height:430px;object-fit:cover;border-radius:22px;display:block}

/* ---------- FAQ ---------- */
.faq{max-width:850px;margin:auto}
.faq details{border-bottom:1px solid var(--line);padding:18px 0}
.faq summary{font-weight:800;color:var(--navy);cursor:pointer}

/* ---------- CTA / form ---------- */
.cta{background:linear-gradient(120deg,#075487,#009b7a);color:#fff;border-radius:28px;padding:44px}
.cta h2{color:#fff}
.form{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form input,.form select,.form textarea{width:100%;padding:14px;border:0;border-radius:10px;font:inherit}
.form textarea{grid-column:1/-1;min-height:90px}
.form button{border:0;cursor:pointer}

/* ---------- Media coverage ---------- */
.media-section{background:#f5fbfb}
.media-card{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:center;background:#fff;border:1px solid #dcecec;border-radius:24px;padding:32px;box-shadow:0 14px 38px rgba(16,66,74,.08)}
.media-card h2{margin-top:0}
.media-quote{font-size:20px;font-weight:700;line-height:1.4}
.media-badge{border-radius:18px;padding:30px;background:linear-gradient(145deg,#087d82,#0d5966);color:#fff;text-align:center}
.media-badge-label{font-size:14px;letter-spacing:.15em;font-weight:800;opacity:.8}
.media-badge-name{font-size:34px;font-weight:900;margin:14px 0}
.media-badge-sub{font-size:15px;line-height:1.6}

/* ---------- Footer ---------- */
.footer{padding:32px 0;color:#738493;font-size:13px}

/* ============================================================
   Responsive
   ============================================================ */
@media(max-width:850px){
  .brand-logo{height:48px;max-width:205px}
  .nav-toggle{display:block}
  .navlinks{position:absolute;top:100%;left:-24px;right:-24px;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 18px;border-bottom:1px solid #e8eef3;box-shadow:0 14px 30px rgba(7,84,135,.12);display:none}
  .navlinks.open{display:flex}
  .navlinks a{padding:13px 4px;border-bottom:1px solid #eef4f7;font-size:15px}
  .navlinks a.btn{margin-top:12px;text-align:center;border-bottom:0}
  .hero-grid,.feature,.compare,.food,.media-card{grid-template-columns:1fr}
  .cards,.journey{grid-template-columns:1fr 1fr}
  .reels{grid-template-columns:1fr 1fr}
  .hero-img{height:330px}
  .feature img{height:300px}
  .recovery-img{height:320px}
  section{padding:56px 0}
}
@media(max-width:560px){
  .cards,.journey,.reels,.form{grid-template-columns:1fr}
  .hero{padding-top:42px}
  .stamp{left:10px}
  .form textarea{grid-column:auto}
  .cta{padding:30px 22px}
  .media-card{padding:22px}
  .lead{font-size:17px}
  .bigline{font-size:24px}
  .hero-img{height:260px}
  .recovery-img{height:250px}
  section{padding:46px 0}
}