/* SmartWeb corporate site renewal — demo stylesheet */
:root{
  --navy:#0c1f45;
  --blue:#1d5fe0;
  --blue-deep:#1443a8;
  --blue-light:#eaf1ff;
  --blue-pale:#f4f8ff;
  --text:#192033;
  --muted:#5c6679;
  --border:#e2e8f4;
  --white:#ffffff;
  --radius:14px;
  --maxw:1180px;
  --ease:cubic-bezier(.22,.8,.32,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP","Yu Gothic",sans-serif;
  color:var(--text);
  background:var(--white);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
section{position:relative;}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 32px;
  --header-fg:#ffffff;
  transition:background .35s var(--ease),box-shadow .35s var(--ease),padding .35s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.92);
  box-shadow:0 6px 24px rgba(12,31,69,.08);
  padding:10px 32px;
  --header-fg:var(--navy);
}
.logo{font-size:20px;font-weight:700;letter-spacing:.04em;color:var(--header-fg);display:flex;align-items:center;gap:8px;transition:color .35s var(--ease);}
.logo .dot{width:9px;height:9px;border-radius:50%;background:var(--blue);display:inline-block;}
.nav-desktop{display:flex;gap:34px;}
.nav-desktop a{
  font-size:14px;font-weight:600;color:var(--header-fg);position:relative;padding:4px 0;
  letter-spacing:.03em;transition:color .35s var(--ease);
}
.nav-desktop a::after{
  content:"";position:absolute;left:0;bottom:-4px;width:0;height:2px;background:currentColor;
  transition:width .3s var(--ease);
}
.nav-desktop a:hover::after,.nav-desktop a.active::after{width:100%;}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;background:var(--blue);color:#fff;
  padding:10px 20px;border-radius:999px;font-size:13px;font-weight:700;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s;
  box-shadow:0 8px 20px rgba(29,95,224,.28);
}
.nav-cta:hover{transform:translateY(-2px);background:var(--blue-deep);}
.hamburger{display:none;width:40px;height:40px;border:none;background:none;cursor:pointer;position:relative;z-index:260;}
.hamburger span{
  display:block;width:24px;height:2px;background:var(--header-fg);margin:6px auto;
  transition:transform .3s var(--ease),opacity .3s var(--ease),background .35s var(--ease);
}
.hamburger.is-open span{background:#fff;}
.hamburger.is-open span:nth-child(1){transform:translateY(8px) rotate(45deg);}
.hamburger.is-open span:nth-child(2){opacity:0;}
.hamburger.is-open span:nth-child(3){transform:translateY(-8px) rotate(-45deg);}

.mobile-nav{
  position:fixed;inset:0;z-index:250;
  background:var(--navy);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .3s var(--ease),visibility .3s,transform .3s var(--ease);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:28px;
  will-change:transform;
}
.mobile-nav.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mobile-nav a{color:#fff;font-size:22px;font-weight:700;letter-spacing:.04em;}
.mobile-nav .nav-cta{margin-top:10px;}

/* ---------- Hero ---------- */
.hero{
  min-height:92vh;display:flex;flex-direction:column;justify-content:center;gap:56px;
  padding:140px 0 80px;
  background:linear-gradient(160deg,var(--navy) 0%,#123a8f 55%,var(--blue) 100%);
  color:#fff;overflow:hidden;position:relative;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 80% 20%,rgba(255,255,255,.12),transparent 55%);
}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;position:relative;z-index:2;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  letter-spacing:.12em;color:#bcd4ff;margin-bottom:18px;text-transform:uppercase;
}
.hero h1{font-size:44px;line-height:1.5;font-weight:800;margin:0 0 22px;}
.hero h1 span{color:#9fc4ff;}
.hero p{font-size:16px;color:#d6e3ff;max-width:46ch;margin:0 0 34px;}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;gap:10px;padding:15px 30px;border-radius:999px;
  font-weight:700;font-size:14px;transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s,color .25s;
}
.btn-primary{background:#fff;color:var(--navy);box-shadow:0 10px 26px rgba(0,0,0,.18);}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 32px rgba(0,0,0,.24);}
.btn-outline{border:1.5px solid rgba(255,255,255,.55);color:#fff;}
.btn-outline:hover{background:rgba(255,255,255,.12);}
.hero-visual{position:relative;border-radius:20px;overflow:hidden;box-shadow:0 30px 60px rgba(4,14,38,.45);
  transform:perspective(1200px) rotateY(-6deg) rotateX(2deg);transition:transform .6s var(--ease);
}
.hero-visual:hover{transform:perspective(1200px) rotateY(0) rotateX(0);}
.hero-visual img{height:100%;object-fit:cover;}
.hero-stats{
  display:flex;gap:36px;margin-top:0;position:relative;z-index:2;
  border-top:1px solid rgba(255,255,255,.2);padding-top:28px;
}
.hero-stats div{flex:1;min-width:0;border-left:1px solid rgba(255,255,255,.18);padding-left:24px;}
.hero-stats div:first-child{border-left:none;padding-left:0;}
.stat-num{font-size:30px;font-weight:800;display:flex;align-items:baseline;gap:5px;white-space:nowrap;}
.stat-num small{font-size:15px;font-weight:600;color:#bcd4ff;white-space:nowrap;}
.stat-label{font-size:12px;color:#bcd4ff;letter-spacing:.05em;margin-top:6px;white-space:nowrap;}

/* ---------- Section generic ---------- */
.section{padding:108px 0;}
.section-alt{background:var(--blue-pale);}
.section-head{max-width:640px;margin:0 auto 56px;text-align:center;}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:.14em;color:var(--blue);
  text-transform:uppercase;margin-bottom:14px;
}
.section-head h2{font-size:32px;font-weight:800;color:var(--navy);margin:0 0 16px;line-height:1.5;}
.section-head p{color:var(--muted);font-size:15px;margin:0;}
.section-head.left{text-align:left;margin:0 0 48px;}

/* reveal animation */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease);}
.reveal.is-visible{opacity:1;transform:translateY(0);}
.reveal-stagger > *{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
.reveal-stagger.is-visible > *{opacity:1;transform:translateY(0);}
.reveal-stagger.is-visible > *:nth-child(1){transition-delay:.05s;}
.reveal-stagger.is-visible > *:nth-child(2){transition-delay:.15s;}
.reveal-stagger.is-visible > *:nth-child(3){transition-delay:.25s;}
.reveal-stagger.is-visible > *:nth-child(4){transition-delay:.35s;}

/* ---------- Mission ---------- */
.mission{display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;align-items:center;}
.mission-visual{border-radius:var(--radius);overflow:hidden;position:relative;}
.mission-visual img{transition:transform 1s var(--ease);}
.mission-visual:hover img{transform:scale(1.06);}
.mission-copy .eyebrow{color:var(--blue);}
.mission-copy h2{font-size:30px;font-weight:800;color:var(--navy);margin:0 0 20px;line-height:1.6;}
.mission-copy p{color:var(--muted);font-size:15px;margin:0 0 16px;}
.mission-quote{
  margin-top:26px;padding:22px 26px;background:var(--blue-light);border-left:4px solid var(--blue);
  border-radius:0 10px 10px 0;font-weight:700;color:var(--navy);font-size:15px;
}

/* ---------- Service cards ---------- */
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;}
.service-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease);
}
.service-card:hover{transform:translateY(-8px);box-shadow:0 24px 40px rgba(12,31,69,.12);}
.service-card .thumb{height:150px;overflow:hidden;}
.service-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.service-card:hover .thumb img{transform:scale(1.08);}
.service-card .body{padding:22px;}
.service-card .num{font-size:12px;font-weight:800;color:var(--blue);letter-spacing:.08em;}
.service-card h3{font-size:16px;font-weight:800;color:var(--navy);margin:10px 0 10px;}
.service-card p{font-size:13.5px;color:var(--muted);margin:0;}
.service-card .more{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;color:var(--blue);margin-top:14px;}
.service-card .more svg{transition:transform .25s var(--ease);}
.service-card:hover .more svg{transform:translateX(4px);}

/* ---------- Brand banner ---------- */
.brand-banner{
  background:linear-gradient(120deg,var(--navy),var(--blue-deep));
  border-radius:24px;padding:60px;color:#fff;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
  overflow:hidden;position:relative;
}
.brand-banner::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.08);}
.brand-banner h2{font-size:26px;font-weight:800;margin:0 0 14px;}
.brand-banner p{color:#cfe0ff;font-size:14.5px;margin:0 0 22px;}
.brand-banner img{border-radius:16px;box-shadow:0 24px 48px rgba(0,0,0,.35);}

/* ---------- Topics ---------- */
.topics-list{border-top:1px solid var(--border);}
.topic-row{
  display:grid;grid-template-columns:120px 140px 1fr auto;gap:24px;align-items:center;
  padding:22px 4px;border-bottom:1px solid var(--border);transition:background .25s;
}
.topic-row:hover{background:var(--blue-pale);}
.topic-row time{font-size:13px;color:var(--muted);font-weight:600;}
.tag{
  display:inline-block;font-size:11px;font-weight:800;color:var(--blue);background:var(--blue-light);
  padding:5px 12px;border-radius:999px;letter-spacing:.04em;text-align:center;
}
.topic-row h4{margin:0;font-size:14.5px;font-weight:700;color:var(--text);}
.topic-row .arrow{color:var(--blue);transition:transform .25s var(--ease);}
.topic-row:hover .arrow{transform:translateX(4px);}

/* ---------- CTA ---------- */
.cta{
  background:var(--blue-pale);border-radius:28px;padding:72px 40px;text-align:center;
}
.cta h2{font-size:28px;font-weight:800;color:var(--navy);margin:0 0 16px;}
.cta p{color:var(--muted);margin:0 0 30px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy);color:#cfe0ff;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px;}
.footer-grid h5{color:#fff;font-size:13px;letter-spacing:.06em;margin:0 0 18px;}
.footer-grid a{display:block;font-size:13.5px;color:#aec3ea;margin-bottom:10px;transition:color .2s;}
.footer-grid a:hover{color:#fff;}
.footer-logo{font-size:20px;font-weight:800;color:#fff;margin-bottom:14px;}
.footer-addr{font-size:12.5px;color:#92a9d6;line-height:1.9;margin-bottom:14px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding-top:22px;
  display:flex;justify-content:space-between;font-size:12px;color:#7f98c9;flex-wrap:wrap;gap:10px;
}

/* ---------- Inner page header ---------- */
.page-hero{
  padding:170px 0 70px;background:linear-gradient(160deg,var(--navy),var(--blue-deep));color:#fff;
}
.breadcrumb{font-size:12.5px;color:#bcd4ff;margin-bottom:16px;letter-spacing:.04em;}
.page-hero h1{font-size:34px;font-weight:800;margin:0 0 14px;}
.page-hero p{color:#d6e3ff;max-width:54ch;margin:0;font-size:14.5px;}

/* ---------- Service detail rows ---------- */
.service-detail{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;padding:70px 0;border-bottom:1px solid var(--border);}
.service-detail:last-child{border-bottom:none;}
.service-detail.rev{grid-template-columns:1fr 1fr;}
.service-detail.rev .sd-visual{order:2;}
.sd-visual{border-radius:var(--radius);overflow:hidden;}
.sd-visual img{transition:transform .8s var(--ease);}
.sd-visual:hover img{transform:scale(1.05);}
.sd-copy .num{font-size:13px;font-weight:800;color:var(--blue);letter-spacing:.1em;margin-bottom:12px;display:block;}
.sd-copy h3{font-size:24px;font-weight:800;color:var(--navy);margin:0 0 16px;}
.sd-copy p{color:var(--muted);font-size:14.5px;margin:0 0 18px;}
.sd-points{display:flex;flex-direction:column;gap:10px;}
.sd-points li{display:flex;gap:10px;font-size:13.5px;color:var(--text);align-items:flex-start;}
.sd-points li::before{content:"✓";color:var(--blue);font-weight:800;}

/* ---------- Company table ---------- */
.company-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:60px;}
.info-table{width:100%;border-collapse:collapse;}
.info-table tr{border-bottom:1px solid var(--border);}
.info-table th{
  text-align:left;padding:18px 20px 18px 0;font-size:13px;color:var(--muted);font-weight:700;width:160px;vertical-align:top;
}
.info-table td{padding:18px 0;font-size:14px;color:var(--text);vertical-align:top;}
.offices{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:40px;}
.office-card{background:var(--blue-pale);border-radius:var(--radius);padding:24px;}
.office-card h4{margin:0 0 10px;color:var(--navy);font-size:14.5px;}
.office-card p{margin:0;font-size:13px;color:var(--muted);}

.timeline{position:relative;margin-top:16px;padding-left:28px;}
.timeline::before{content:"";position:absolute;left:5px;top:6px;bottom:6px;width:2px;background:var(--border);}
.timeline-item{position:relative;padding-bottom:30px;}
.timeline-item::before{content:"";position:absolute;left:-28px;top:4px;width:12px;height:12px;border-radius:50%;background:var(--blue);border:3px solid var(--blue-light);}
.timeline-item .yr{font-weight:800;color:var(--navy);font-size:14px;}
.timeline-item p{margin:6px 0 0;color:var(--muted);font-size:13.5px;}

/* ---------- Contact form ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:60px;}
.contact-side .office-card{margin-bottom:16px;}
.form-group{margin-bottom:22px;}
.form-group label{display:block;font-size:13px;font-weight:700;color:var(--navy);margin-bottom:8px;}
.req{color:#e0433c;font-size:11px;margin-left:6px;}
.form-group input,.form-group select,.form-group textarea{
  width:100%;padding:13px 16px;border:1.5px solid var(--border);border-radius:10px;font-size:14px;font-family:inherit;
  transition:border-color .25s,box-shadow .25s;
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(29,95,224,.12);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.btn-submit{
  width:100%;padding:16px;border:none;border-radius:10px;background:var(--blue);color:#fff;font-weight:800;font-size:15px;
  cursor:pointer;transition:background .25s,transform .25s;
}
.btn-submit:hover{background:var(--blue-deep);transform:translateY(-2px);}
.form-note{font-size:12px;color:var(--muted);margin-top:14px;}

@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;}
  .hero-visual{order:-1;height:260px;}
  .hero-stats{flex-wrap:wrap;gap:20px;}
  .hero-stats div{flex:1 1 40%;border-left:none;padding-left:0;}
  .mission{grid-template-columns:1fr;}
  .service-grid{grid-template-columns:repeat(2,1fr);}
  .brand-banner{grid-template-columns:1fr;padding:40px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .service-detail,.service-detail.rev{grid-template-columns:1fr;}
  .service-detail.rev .sd-visual{order:0;}
  .company-grid,.contact-grid{grid-template-columns:1fr;}
  .topic-row{grid-template-columns:90px 1fr;row-gap:8px;}
  .topic-row .arrow{display:none;}
}
@media (max-width:640px){
  .nav-desktop,.nav-cta{display:none;}
  .hamburger{display:block;}
  .hero{padding:120px 0 60px;}
  .hero h1{font-size:30px;}
  .section{padding:72px 0;}
  .service-grid{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .offices{grid-template-columns:1fr;}
}