/* ARCADIA — Hybrid: flashy hero + classic sections */
:root{
  --bg:#070A12;
  --text:#EAF0FF;
  --muted: rgba(234,240,255,.72);
  --muted2: rgba(234,240,255,.56);
  --line: rgba(255,255,255,.12);
  --shadow: 0 28px 90px rgba(0,0,0,.42);
  --radius: 22px;
  --radius2: 30px;
  --max: 1180px;

  --a1:#7C5CFF;
  --a2:#00D5FF;
  --a3:#FFD36B;

  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Noto Sans JP", Arial, sans-serif;
}
*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font);
  background:
    radial-gradient(1100px 650px at 18% 10%, rgba(124,92,255,.18), transparent 60%),
    radial-gradient(980px 620px at 88% 15%, rgba(0,213,255,.14), transparent 60%),
    radial-gradient(900px 620px at 55% 88%, rgba(255,211,107,.11), transparent 55%),
    var(--bg);
  color:var(--text);
  line-height:1.55;
  overflow-x:hidden;
}
a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
.container{ width:min(var(--max), calc(100% - 40px)); margin-inline:auto; }

.skip{ position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden; }
.skip:focus{ left:18px; top:14px; width:auto; height:auto; padding:10px 12px; background:#11172a; border:1px solid var(--line); border-radius:12px; z-index:9999; }

.header{
  position:sticky; top:0; z-index:60;
  backdrop-filter: blur(14px);
  background: rgba(7,10,18,.52);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition: box-shadow .2s ease, background .2s ease;
}
.header.is-elevated{ box-shadow: 0 12px 36px rgba(0,0,0,.22); background: rgba(7,10,18,.76); }
.header__inner{ display:flex; align-items:center; justify-content:space-between; padding: 14px 0; gap:16px; }

.brand{ display:flex; align-items:center; gap:10px; }
.brand__text{ display:flex; flex-direction:column; line-height:1.1; }
.brand__text strong{ letter-spacing:.14em; font-size:13px; }
.brand__text em{ font-style:normal; color:var(--muted2); font-size:12px; letter-spacing:.04em; }

.nav{ display:flex; align-items:center; gap:18px; color:rgba(234,240,255,.70); }
.nav a{ padding:10px 10px; border-radius:12px; }
.nav a:hover{ background: rgba(255,255,255,.06); color: var(--text); }

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.14);
  background: linear-gradient(135deg, rgba(124,92,255,.98), rgba(0,213,255,.78));
  color:#081023;
  font-weight:900;
  box-shadow: 0 20px 70px rgba(0,213,255,.14);
  cursor:pointer;
  transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
}
.btn:hover{ transform: translateY(-1px); box-shadow: 0 26px 85px rgba(124,92,255,.20); filter:saturate(1.05); }
.btn:active{ transform: translateY(0px); }
.btn--ghost{ background: rgba(255,255,255,.04); color: var(--text); }
.btn--sm{ padding:10px 14px; font-weight:850; }
.btn--xl{ padding:14px 20px; font-size: 14px; }

.navToggle{ display:none; width:44px; height:44px; border-radius:14px; border:1px solid rgba(255,255,255,.14); background: rgba(255,255,255,.04); cursor:pointer; }
.navToggle span{ display:block; height:2px; width:18px; margin:4px auto; background: rgba(255,255,255,.75); border-radius: 999px; }

/* HERO */
.hero{ position:relative; overflow:hidden; padding: 92px 0 36px; }
.hero--max{ padding-top: 98px; }
.hero__bg{ position:absolute; inset:0; pointer-events:none; }
.hero__art{ position:absolute; right:-260px; top:-240px; width:min(1180px, 112vw); transform: rotate(-7deg); filter: drop-shadow(0 50px 140px rgba(0,0,0,.60)); }
.hero__grid{
  position:absolute; inset:0;
  background-image: linear-gradient(to right, rgba(255,255,255,.06) 1px, transparent 1px),
                    linear-gradient(to bottom, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 86px 86px;
  mask-image: radial-gradient(closest-side at 22% 38%, rgba(0,0,0,.92), transparent 75%);
  opacity: .55;
}
.hero__grain{ position:absolute; inset:0; background-image: url("assets/grain.svg"); opacity:.12; mix-blend-mode: overlay; }
.hero__scan{
  position:absolute; inset:-40% -20%;
  background: radial-gradient(circle at 25% 35%, rgba(0,213,255,.18), transparent 58%),
              radial-gradient(circle at 55% 30%, rgba(124,92,255,.20), transparent 60%),
              radial-gradient(circle at 78% 62%, rgba(255,211,107,.12), transparent 62%);
  opacity:.9;
}

.hero__inner{ position:relative; display:grid; grid-template-columns: 1.05fr .95fr; gap: 20px; align-items: start; }
.pill{ display:inline-flex; align-items:center; gap:10px; padding: 8px 12px; border-radius:999px; border:1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.04); color: var(--muted); margin: 0 0 14px; }
.pill--pulse{ box-shadow: 0 0 0 0 rgba(0,213,255,.20); animation: pulse 2.6s ease-in-out infinite; }
@keyframes pulse{ 0%{ box-shadow: 0 0 0 0 rgba(0,213,255,.00); } 45%{ box-shadow: 0 0 0 12px rgba(0,213,255,.08); } 100%{ box-shadow: 0 0 0 0 rgba(0,213,255,.00); } }
.dot{ width:9px; height:9px; border-radius:50%; background: radial-gradient(circle at 30% 30%, #fff, rgba(255,255,255,.2)); box-shadow: 0 0 22px rgba(0,213,255,.40); }

h1{ margin: 0 0 12px; font-size: clamp(44px, 5.6vw, 78px); line-height: 1.01; letter-spacing: -0.03em; }
.grad{ background: linear-gradient(90deg, var(--a2), var(--a1), var(--a3)); -webkit-background-clip:text; background-clip:text; color: transparent; }
.lead{ margin: 0 0 18px; color: var(--muted); font-size: 16px; max-width: 56ch; }
.hero__cta{ display:flex; gap:12px; flex-wrap:wrap; margin: 12px 0 16px; }

.hero__stats{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.stat{ border-radius: 18px; border:1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.03); padding: 12px 12px 10px; }
.stat__k{ color: rgba(234,240,255,.55); font-size: 12px; letter-spacing:.10em; text-transform:uppercase; }
.stat__v{ display:flex; align-items:baseline; gap:6px; margin-top: 6px; font-size: 32px; letter-spacing:-.02em; }
.stat__v small{ font-size: 12px; color: rgba(234,240,255,.55); }

.hero__show{ position:relative; min-height: 520px; }
.showcard{ border-radius: var(--radius2); border:1px solid rgba(255,255,255,.14); background: linear-gradient(180deg, rgba(255,255,255,.09), rgba(255,255,255,.03)); box-shadow: var(--shadow); overflow:hidden; }
.showcard__top{ display:flex; justify-content:space-between; align-items:center; padding: 14px 14px 10px; }
.badge{ display:inline-flex; align-items:center; padding: 6px 10px; border-radius: 999px; border:1px solid rgba(255,255,255,.14); background: rgba(0,0,0,.20); color: rgba(234,240,255,.75); font-size: 12px; letter-spacing:.10em; }
.muted{ color: rgba(234,240,255,.55); }
.showcard__bottom{ padding: 12px 12px 14px; display:grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.chip{ display:flex; justify-content:space-between; align-items:center; padding: 10px 12px; border-radius: 16px; border: 1px solid rgba(255,255,255,.10); background: rgba(0,0,0,.16); }
.chip .k{ color: rgba(234,240,255,.55); font-size: 12px; letter-spacing:.08em; text-transform:uppercase; }
.chip .v{ color: var(--text); font-size: 13px; }

.float{ position:absolute; border-radius: 22px; border:1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.03); box-shadow: 0 16px 55px rgba(0,0,0,.30); overflow:hidden; }
.float--a{ width: 220px; right: -10px; top: 90px; transform: rotate(6deg); }
.float--b{ width: 240px; left: -12px; bottom: 26px; transform: rotate(-7deg); }

.hero__foot{ padding: 22px 0 10px; }
.marquee{ overflow:hidden; border-radius: 999px; border:1px solid rgba(255,255,255,.10); background: rgba(255,255,255,.03); }
.marquee__track{ display:flex; gap:18px; padding: 10px 14px; width:max-content; animation: scroll 20s linear infinite; color: rgba(234,240,255,.62); font-size: 12px; letter-spacing:.10em; text-transform:uppercase; }
.marquee__track span{ white-space:nowrap; opacity:.95; }
@keyframes scroll{ from{ transform: translateX(0);} to{ transform: translateX(-50%);} }

/* Sections */
.section{ padding: 76px 0; position:relative; }
.section--alt{ background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.00)); border-top: 1px solid rgba(255,255,255,.06); border-bottom: 1px solid rgba(255,255,255,.06); }
.section--glow:before{
  content:""; position:absolute; inset:-1px 0;
  background: radial-gradient(500px 200px at 18% 10%, rgba(0,213,255,.16), transparent 60%),
              radial-gradient(520px 220px at 80% 20%, rgba(124,92,255,.14), transparent 60%);
  pointer-events:none; opacity:.9;
}
.section--glow2:before{
  content:""; position:absolute; inset:-1px 0;
  background: radial-gradient(520px 220px at 20% 20%, rgba(255,211,107,.10), transparent 60%),
              radial-gradient(520px 220px at 78% 30%, rgba(0,213,255,.12), transparent 60%);
  pointer-events:none; opacity:.9;
}

.section__head{ position:relative; display:flex; align-items:flex-end; justify-content:space-between; gap: 18px; margin-bottom: 24px; }
.section__head h2{ margin:0; font-size: 28px; letter-spacing:-.02em; }
.section__head p{ margin:0; color: var(--muted); max-width: 64ch; }

.cards{ position:relative; display:grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card{ border-radius: var(--radius); border:1px solid rgba(255,255,255,.14); background: rgba(255,255,255,.04); padding: 18px 18px 16px; box-shadow: 0 16px 55px rgba(0,0,0,.22); position:relative; overflow:hidden; transition: transform .15s ease, background .15s ease; }
.card--shine:before{
  content:""; position:absolute; inset:-40% -20%;
  background: radial-gradient(circle at 30% 30%, rgba(0,213,255,.16), transparent 55%),
              radial-gradient(circle at 70% 55%, rgba(124,92,255,.14), transparent 60%),
              radial-gradient(circle at 60% 80%, rgba(255,211,107,.10), transparent 60%);
  opacity:.8;
}
.card > *{ position:relative; }
.card:hover{ background: rgba(255,255,255,.055); transform: translateY(-1px); }
.card h3{ margin: 8px 0 8px; font-size: 18px; }
.card p{ margin: 0 0 10px; color: var(--muted); }
.card ul{ margin: 0; padding-left: 18px; color: var(--muted); }
.card li{ margin: 6px 0; }
.icon{ width: 38px; height: 38px; }

.banner{ margin-top: 18px; border-radius: var(--radius2); border: 1px solid rgba(255,255,255,.14); background: linear-gradient(90deg, rgba(0,213,255,.10), rgba(124,92,255,.10), rgba(255,211,107,.08)); padding: 18px; display:flex; justify-content:space-between; align-items:center; gap: 14px; box-shadow: 0 18px 65px rgba(0,0,0,.22); }
.banner h3{ margin:0 0 6px; }
.banner p{ margin:0; color: rgba(234,240,255,.70); }

.work{ display:grid; gap: 14px; position:relative; }
.work__item{ display:grid; grid-template-columns: 340px 1fr; gap: 16px; align-items:center; border-radius: var(--radius2); border:1px solid rgba(255,255,255,.14); background: rgba(255,255,255,.03); padding: 14px; box-shadow: 0 16px 55px rgba(0,0,0,.20); }
.work__media{ border-radius: 22px; overflow:hidden; border:1px solid rgba(255,255,255,.10); background: rgba(0,0,0,.20); }
.work__text h3{ margin: 0 0 6px; font-size: 18px; }
.work__text p{ margin: 0 0 10px; color: var(--muted); }
.work__meta{ display:flex; gap:8px; flex-wrap:wrap; }
.tag{ display:inline-flex; align-items:center; padding: 6px 10px; border-radius: 999px; border:1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.04); color: rgba(234,240,255,.72); font-size: 12px; }

.steps{ display:grid; grid-template-columns: repeat(4, 1fr); gap: 12px; position:relative; }
.step{ border-radius: var(--radius); border:1px solid rgba(255,255,255,.14); background: rgba(255,255,255,.035); padding: 18px; box-shadow: 0 14px 45px rgba(0,0,0,.18); position:relative; overflow:hidden; }
.step--neon:before{
  content:""; position:absolute; inset:-40% -30%;
  background: radial-gradient(circle at 30% 30%, rgba(0,213,255,.14), transparent 60%),
              radial-gradient(circle at 70% 60%, rgba(124,92,255,.12), transparent 62%);
  opacity:.9;
}
.step > *{ position:relative; }
.step__num{ display:inline-flex; padding: 6px 10px; border-radius: 999px; border:1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.04); color: rgba(234,240,255,.70); font-size: 12px; letter-spacing:.08em; }
.step h3{ margin: 10px 0 6px; }
.step p{ margin:0; color: var(--muted); }

.insights{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 12px; position:relative; }
.post{ border-radius: var(--radius); border:1px solid rgba(255,255,255,.14); background: rgba(255,255,255,.03); padding: 16px; box-shadow: 0 14px 45px rgba(0,0,0,.18); position:relative; overflow:hidden; transition: transform .15s ease, background .15s ease; }
.post--shine:before{
  content:""; position:absolute; inset:-40% -20%;
  background: radial-gradient(circle at 25% 30%, rgba(124,92,255,.14), transparent 60%),
              radial-gradient(circle at 80% 55%, rgba(0,213,255,.12), transparent 62%);
  opacity:.9;
}
.post > *{ position:relative; }
.post:hover{ background: rgba(255,255,255,.05); transform: translateY(-1px); }
.post__top{ display:flex; justify-content:space-between; align-items:center; margin-bottom: 10px; }
.date{ color: rgba(234,240,255,.55); font-size: 12px; }
.post h3{ margin: 0 0 8px; }
.post p{ margin:0; color: var(--muted); }

.contact{ display:grid; grid-template-columns: 1.05fr .95fr; gap: 18px; align-items:start; }
.dl{ margin: 18px 0 0; display:grid; gap: 10px; }
.dl div{ display:grid; grid-template-columns: 110px 1fr; gap: 12px; padding: 10px 12px; border-radius: 16px; border:1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.03); }
.dl dt{ color: rgba(234,240,255,.55); font-size: 12px; letter-spacing:.08em; text-transform:uppercase; }
.dl dd{ margin:0; }

.revealEmail{ border-radius: 999px; border: 1px solid rgba(255,255,255,.14); background: rgba(255,255,255,.04); color: rgba(234,240,255,.80); padding: 8px 12px; cursor:pointer; font-weight:800; }
.revealEmail:hover{ background: rgba(255,255,255,.07); }
.emailOut{ margin-left: 10px; color: rgba(234,240,255,.72); font-size: 13px; }

.note{ margin-top: 14px; padding: 12px 14px; border-radius: 18px; border:1px dashed rgba(255,255,255,.22); color: var(--muted); background: rgba(0,0,0,.18); }
.note strong{ color: var(--text); }

.form{ border-radius: var(--radius2); border:1px solid rgba(255,255,255,.14); background: rgba(255,255,255,.03); padding: 16px; box-shadow: 0 18px 65px rgba(0,0,0,.20); }
label{ display:block; font-size: 13px; color: rgba(234,240,255,.55); margin-bottom: 12px; }
input, textarea{ width:100%; margin-top: 8px; border-radius: 14px; border:1px solid rgba(255,255,255,.12); background: rgba(0,0,0,.22); color: var(--text); padding: 12px 12px; outline:none; }
input:focus, textarea:focus{ border-color: rgba(0,213,255,.40); box-shadow: 0 0 0 4px rgba(0,213,255,.10); }
.form__help{ margin: 10px 0 0; color: rgba(234,240,255,.55); font-size: 12px; }

.footer{ padding: 28px 0 44px; border-top: 1px solid rgba(255,255,255,.06); background: rgba(0,0,0,.18); }
.footer__inner{ display:flex; align-items:center; justify-content:space-between; gap: 12px; }
.brand--mini strong{ font-size: 12px; }
.small{ margin:10px 0 0; color: rgba(234,240,255,.55); font-size: 12px; }
.footer__right{ display:flex; gap: 14px; color: rgba(234,240,255,.68); font-size: 13px; }
.footer__right a:hover{ color: var(--text); }

@media (max-width: 1060px){
  .hero__inner{ grid-template-columns: 1fr; }
  .hero__show{ min-height: unset; }
  .hero__stats{ grid-template-columns: 1fr; }
  .cards{ grid-template-columns: 1fr; }
  .work__item{ grid-template-columns: 1fr; }
  .steps{ grid-template-columns: 1fr 1fr; }
  .insights{ grid-template-columns: 1fr; }
  .contact{ grid-template-columns: 1fr; }
}
@media (max-width: 820px){
  .nav{ display:none; position:absolute; right:20px; top:66px; flex-direction:column; gap:10px; background: rgba(7,10,18,.92); border:1px solid rgba(255,255,255,.12); border-radius: 18px; padding: 12px; width: min(320px, calc(100% - 40px)); box-shadow: var(--shadow); }
  .nav.is-open{ display:flex; }
  .navToggle{ display:inline-block; }
  .section__head{ flex-direction:column; align-items:flex-start; }
  .banner{ flex-direction:column; align-items:flex-start; }
}
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  .marquee__track{ animation:none; }
  .btn:hover, .card:hover, .post:hover{ transform:none; }
  .pill--pulse{ animation:none; }
}