/* =========================================
   AYUCOM | Global Stylesheet
   ========================================= */

:root{
  --c-primary: #0a4d9c;        /* corporate blue */
  --c-primary-dark: #053569;
  --c-accent:  #ff7a1a;         /* warm accent */
  --c-accent-2:#00b896;         /* teal/green */
  --c-text:    #1a2230;
  --c-muted:   #5b6675;
  --c-bg:      #ffffff;
  --c-bg-soft: #f5f8fc;
  --c-bg-dark: #0a1a33;
  --c-border:  #e3e8ef;
  --radius:    14px;
  --shadow-sm: 0 2px 6px rgba(10,30,60,.06);
  --shadow-md: 0 8px 24px rgba(10,30,60,.10);
  --shadow-lg: 0 18px 48px rgba(10,30,60,.16);
  --max-w: 1200px;
  --grad-1: linear-gradient(135deg,#0a4d9c 0%,#1565c0 60%,#00b896 100%);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans JP","Hiragino Sans","Yu Gothic UI",sans-serif;
  color:var(--c-text);
  line-height:1.7;
  background:var(--c-bg);
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-accent)}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}

.container{max-width:var(--max-w);margin:0 auto;padding:0 22px}

/* skip link */
.skip-link{
  position:absolute;left:-9999px;top:0;background:#000;color:#fff;
  padding:8px 14px;z-index:1000;
}
.skip-link:focus{left:10px;top:10px}

/* =========================================
   TOPBAR
   ========================================= */
.topbar{
  background:var(--c-bg-dark);color:#cfe1ff;
  font-size:.82rem;padding:.45rem 0;
}
.topbar a{color:#fff}
.topbar a:hover{color:var(--c-accent)}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap}
.topbar-left span,.topbar-right span{margin-right:1.2rem;display:inline-flex;align-items:center;gap:.4rem}
.topbar .badges{color:#ffd089}

/* =========================================
   HEADER
   ========================================= */
.header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .25s ease;
}
.header.scrolled{box-shadow:var(--shadow-sm)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:.85rem 0;gap:1rem}
.logo{display:flex;align-items:center;gap:.7rem;color:var(--c-text)}
.logo img{border-radius:50%;border:2px solid var(--c-primary);background:#fff}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-title{font-family:"Montserrat",sans-serif;font-weight:800;font-size:1.25rem;letter-spacing:.06em;color:var(--c-primary)}
.logo-sub{font-size:.78rem;color:var(--c-muted)}

.nav ul{display:flex;gap:1.4rem;align-items:center}
.nav a{
  font-weight:500;color:var(--c-text);font-size:.95rem;
  padding:.35rem 0;position:relative;
}
.nav a:not(.nav-cta)::after{
  content:"";position:absolute;left:0;bottom:-3px;height:2px;width:0;
  background:var(--c-accent);transition:width .25s ease;
}
.nav a:not(.nav-cta):hover::after{width:100%}
.nav-cta{
  background:var(--c-primary);color:#fff !important;
  padding:.55rem 1rem;border-radius:30px;font-weight:600;
}
.nav-cta:hover{background:var(--c-accent);color:#fff !important}

.nav-toggle{
  display:none;background:transparent;border:0;
  width:42px;height:42px;flex-direction:column;justify-content:center;gap:5px;align-items:center;
}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--c-text);transition:.3s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* =========================================
   HERO
   ========================================= */
.hero{
  position:relative;color:#fff;overflow:hidden;
  padding:6rem 0 5rem;
}
.hero-bg{
  position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(circle at 20% 20%, rgba(255,122,26,.25), transparent 60%),
    radial-gradient(circle at 80% 70%, rgba(0,184,150,.25), transparent 55%),
    var(--grad-1);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size:40px 40px;
  mask-image:radial-gradient(circle at 50% 40%, #000 30%, transparent 75%);
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:.5rem;
  background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.25);
  padding:.35rem .9rem;border-radius:99px;font-size:.85rem;letter-spacing:.05em;
}
.hero h1{
  font-size:clamp(2rem, 5vw, 3.6rem);font-weight:900;line-height:1.2;
  margin:1rem 0 1.2rem;letter-spacing:.02em;
}
.hero h1 .grad{
  background:linear-gradient(90deg,#ffd089,#ffffff 60%,#9be7d6);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:1.05rem;max-width:640px;opacity:.95}
.hero-actions{display:flex;gap:.8rem;margin-top:1.8rem;flex-wrap:wrap}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1rem;margin-top:3rem;max-width:780px;
}
.hero-stats li{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius);padding:1rem;text-align:center;
}
.hero-stats strong{display:block;font-size:1.5rem;font-weight:800;color:#ffd089}
.hero-stats em{font-size:.85rem;font-style:normal;opacity:.85;margin-left:.15rem}
.hero-stats span{font-size:.78rem;opacity:.85}

/* =========================================
   BUTTONS
   ========================================= */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;
  padding:.85rem 1.6rem;border-radius:99px;font-weight:600;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
  border:2px solid transparent;font-size:.95rem;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px rgba(255,122,26,.35)}
.btn-primary:hover{background:#ff8f3d;color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,122,26,.45)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{background:#fff;color:var(--c-primary)}
.btn-outline{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary);color:#fff}
.btn-lg{padding:1rem 2rem;font-size:1rem}

/* =========================================
   SECTIONS
   ========================================= */
.section{padding:5rem 0;position:relative}
.section-head{text-align:center;margin-bottom:3rem}
.section-head .kicker{
  color:var(--c-accent);font-weight:700;letter-spacing:.2em;font-size:.85rem;
  text-transform:uppercase;
}
.section-head h2{
  font-size:clamp(1.6rem,3.2vw,2.4rem);font-weight:800;margin:.4rem 0 .6rem;
  position:relative;display:inline-block;color:var(--c-text);
}
.section-head h2::after{
  content:"";display:block;width:60px;height:3px;background:var(--c-accent);
  margin:.8rem auto 0;border-radius:3px;
}
.section-head.light h2{color:#fff}
.section-head.light .kicker{color:#ffd089}
.section-lead{color:var(--c-muted);max-width:680px;margin:0 auto}
.section-head.light .section-lead{color:#dde7f4}

/* ABOUT */
.section-about{background:var(--c-bg-soft)}
.about-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.5rem}
.about-card{
  background:#fff;border-radius:var(--radius);padding:2rem;
  box-shadow:var(--shadow-sm);border:1px solid var(--c-border);
}
.about-card h3{
  display:flex;align-items:center;gap:.6rem;margin:0 0 1rem;
  font-size:1.15rem;color:var(--c-primary);
}
.info-list{display:grid;grid-template-columns:auto 1fr;gap:.55rem 1.2rem}
.info-list dt{font-weight:700;color:var(--c-text)}
.info-list dd{margin:0;color:var(--c-muted)}
.check-list li{display:flex;gap:.55rem;align-items:flex-start;padding:.35rem 0}
.check-list .fa-circle-check{color:var(--c-accent-2);margin-top:.3rem}
.muted{color:var(--c-muted)}

/* SERVICES */
.section-services{
  background:linear-gradient(180deg,#0a1a33 0%,#0a4d9c 100%);color:#fff;
}
.services-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1.2rem;
}
.service-card{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);
  border-radius:var(--radius);padding:1.8rem 1.4rem;text-align:center;
  transition:transform .25s ease,background .25s ease;backdrop-filter:blur(6px);
}
.service-card:hover{transform:translateY(-6px);background:rgba(255,255,255,.14)}
.service-icon{
  width:64px;height:64px;border-radius:50%;background:var(--c-accent);
  display:grid;place-items:center;margin:0 auto 1rem;color:#fff;font-size:1.5rem;
  box-shadow:0 10px 24px rgba(255,122,26,.4);
}
.service-card h3{font-size:1.05rem;margin:0 0 .5rem;color:#fff}
.service-card p{margin:0;font-size:.92rem;opacity:.9;color:#e7eef8}

/* BUSINESS */
.biz-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.1rem;
}
.biz-card{
  display:flex;flex-direction:column;gap:.4rem;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--radius);
  padding:1.5rem;color:var(--c-text);position:relative;overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
a.biz-card:hover{
  transform:translateY(-4px);box-shadow:var(--shadow-md);
  border-color:var(--c-primary);color:var(--c-text);
}
.biz-icon{
  width:50px;height:50px;border-radius:12px;
  background:linear-gradient(135deg,#0a4d9c,#1976d2);color:#fff;
  display:grid;place-items:center;font-size:1.2rem;margin-bottom:.3rem;
}
.biz-card h3{font-size:1.05rem;margin:.2rem 0 .3rem;color:var(--c-primary)}
.biz-card p{margin:0;color:var(--c-muted);font-size:.92rem;flex:1}
.biz-link{
  margin-top:.6rem;display:inline-flex;align-items:center;gap:.4rem;
  color:var(--c-accent);font-weight:600;font-size:.85rem;
}
.biz-link.muted{color:var(--c-muted)}

.cta-row{
  display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;margin-top:2.5rem;
}

/* TELECOM */
.section-telecom{
  background:linear-gradient(135deg,#053569,#0a4d9c 50%,#00b896);
  color:#fff;
}
.telecom-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.3rem}
.tele-card{
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius);padding:2rem;color:#fff;
  transition:transform .25s ease,background .25s ease;
  display:flex;flex-direction:column;gap:.6rem;
}
a.tele-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.16);color:#fff}
.tele-card.highlight{
  background:linear-gradient(135deg,rgba(255,122,26,.85),rgba(255,170,80,.85));
  border-color:rgba(255,255,255,.4);
}
.tele-icon{
  width:60px;height:60px;border-radius:14px;background:rgba(255,255,255,.2);
  display:grid;place-items:center;color:#fff;font-size:1.4rem;
}
.tele-card h3{margin:.4rem 0 .2rem;font-size:1.3rem}
.tele-card p{margin:0;opacity:.95;font-size:.95rem}
.tele-link{
  margin-top:.5rem;color:#ffd089;font-weight:600;font-size:.9rem;
  display:inline-flex;align-items:center;gap:.4rem;
}
.tele-card.highlight .tele-link{color:#fff}

/* LICENSE */
.section-license{background:var(--c-bg-soft)}
.license-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.9rem;
}
.lic-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--radius);
  padding:1.1rem 1.2rem;display:flex;flex-direction:column;gap:.25rem;
  box-shadow:var(--shadow-sm);
}
.lic-label{
  color:var(--c-muted);font-size:.8rem;letter-spacing:.05em;
}
.lic-no{
  color:var(--c-primary);font-weight:700;font-size:1.05rem;
  font-family:"Montserrat",sans-serif;
}

/* CONTACT */
.section-contact{
  background:linear-gradient(180deg,#0a1a33 0%,#0a4d9c 100%);color:#fff;
}
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:2rem;align-items:start}
.contact-info ul{display:grid;gap:1rem;margin-bottom:1.5rem}
.contact-info li{
  display:flex;gap:.9rem;align-items:flex-start;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  padding:1rem 1.1rem;border-radius:var(--radius);
}
.contact-info i{
  width:38px;height:38px;border-radius:10px;background:var(--c-accent);
  display:grid;place-items:center;color:#fff;flex-shrink:0;
}
.contact-info a{color:#ffd089}
.contact-info a:hover{color:#fff}
.contact-info strong{color:#fff}
.contact-map iframe{border-radius:var(--radius);box-shadow:var(--shadow-md)}

/* FOOTER */
.footer{background:#06122a;color:#cfdaee;padding:3.5rem 0 0;font-size:.92rem}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1.3fr 1.2fr;gap:2rem;
  padding-bottom:2.5rem;
}
.footer a{color:#cfdaee}
.footer a:hover{color:#ffd089}
.foot-col h4{
  color:#fff;font-size:1rem;margin:0 0 .9rem;
  padding-bottom:.5rem;border-bottom:1px solid rgba(255,255,255,.1);
}
.foot-col ul li{margin:.4rem 0}
.logo-foot{color:#fff;align-items:center;margin-bottom:.6rem}
.logo-foot strong{color:#fff;font-family:"Montserrat",sans-serif;letter-spacing:.05em}
.foot-text{color:#9fb1cd}
.foot-address{font-style:normal;line-height:1.8;color:#9fb1cd}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:1.2rem 0;
  background:#040c1c;
}
.footer-bottom .container{
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;color:#7d8eaa;
}

/* To top */
.to-top{
  position:fixed;right:20px;bottom:20px;width:44px;height:44px;
  background:var(--c-accent);color:#fff;border-radius:50%;
  display:grid;place-items:center;
  box-shadow:var(--shadow-md);opacity:0;pointer-events:none;
  transition:opacity .25s ease,transform .25s ease;z-index:90;
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-3px);color:#fff;background:#ff8f3d}

/* =========================================
   RESPONSIVE
   ========================================= */
@media (max-width: 1024px){
  .services-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .biz-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .license-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width: 820px){
  .topbar-right{display:none}
  .nav-toggle{display:flex}
  .nav{
    position:absolute;top:100%;left:0;right:0;background:#fff;
    border-bottom:1px solid var(--c-border);
    max-height:0;overflow:hidden;transition:max-height .35s ease;
  }
  .nav.open{max-height:480px;box-shadow:var(--shadow-md)}
  .nav ul{flex-direction:column;align-items:stretch;padding:1rem 1.2rem;gap:.2rem}
  .nav a{padding:.8rem 0;display:block;border-bottom:1px solid var(--c-border)}
  .nav a:last-child{border-bottom:none}
  .nav-cta{text-align:center;margin-top:.5rem}
  .about-grid,.contact-grid,.telecom-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .hero{padding:4rem 0 3.5rem}
}
@media (max-width: 540px){
  .services-grid,.biz-grid,.license-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero h1{font-size:2rem}
  .section{padding:3.5rem 0}
  .topbar-left span{margin-right:.6rem;font-size:.78rem}
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}