/* ============================================================
   SHARE Factory — New Site Prototype  (v2)
   IT x Manufacturing — Dark, bold, sophisticated
   ============================================================ */

/* --- Tokens --- */
:root {
  --c-bg:       #08090d;
  --c-surface:  #10121a;
  --c-surface2: #171b26;
  --c-line:     rgba(255,255,255,.08);
  --c-line-h:   rgba(255,255,255,.14);
  --c-text:     #edf1f7;
  --c-muted:    #8793a8;
  --c-dim:      #5c6678;
  --c-accent:   #00d4ff;
  --c-accent2:  #6c5ce7;
  --c-hot:      #ff6b35;
  --font:       'Inter','Noto Sans JP',system-ui,sans-serif;
  --mono:       'JetBrains Mono','Fira Code',monospace;
  --w:          min(1320px, calc(100% - 48px));
  --r:          20px;
  --r-lg:       32px;
  --shadow:     0 32px 80px rgba(0,0,0,.55);
  --glass:      rgba(16,18,26,.72);
  --blur:       blur(24px);
}

/* --- Reset --- */
*,*::before,*::after{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--c-text);background:var(--c-bg);line-height:1.65;overflow-x:hidden}
img,video{max-width:100%;display:block}
a{color:var(--c-accent);text-decoration:none}
a:hover{text-decoration:underline}
ul,ol{padding:0;list-style:none}
h1,h2,h3,h4,h5{line-height:1.15;font-weight:800}
input,textarea,button{font:inherit;color:inherit}

/* --- Utility --- */
.wrap{width:var(--w);margin:0 auto}
.eyebrow{font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:var(--c-accent);font-weight:700}
.eyebrow--muted{color:var(--c-dim)}
.section-head{margin-bottom:48px}
.section-head h2{font-size:clamp(1.9rem,3.5vw,3.6rem);letter-spacing:-.04em;margin-top:8px}
.section-head p.sub{color:var(--c-muted);font-size:1.05rem;max-width:640px;margin-top:12px}
.accent{color:var(--c-accent)}

/* --- Grid Canvas (subtle BG) --- */
body::before{
  content:'';position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 20%,transparent 70%);
}

/* --- Header --- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--glass);backdrop-filter:var(--blur);-webkit-backdrop-filter:var(--blur);
  border-bottom:1px solid var(--c-line);
}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;gap:24px;
}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--c-text)}
.brand img{height:40px;width:auto}
.brand strong{font-size:1.15rem;letter-spacing:.04em}
nav.main-nav{display:flex;gap:4px;flex-wrap:wrap}
nav.main-nav a{
  padding:8px 16px;border-radius:999px;font-size:.88rem;font-weight:600;
  color:var(--c-muted);text-decoration:none;transition:.2s;
}
nav.main-nav a:hover,nav.main-nav a.is-current{color:var(--c-text);background:var(--c-surface2)}
.nav-cta{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 20px;border-radius:999px;font-size:.88rem;font-weight:700;
  color:var(--c-bg);background:var(--c-accent);text-decoration:none;transition:.18s;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(0,212,255,.3);text-decoration:none}
.menu-toggle{display:none;background:none;border:none;color:var(--c-text);cursor:pointer}

/* --- Hero (Top) --- */
.hero{
  position:relative;padding:100px 0 80px;overflow:hidden;
  min-height:min(90vh,900px);display:flex;align-items:center;
}
.hero::before{
  content:'';position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(ellipse 50% 70% at 70% 40%,rgba(0,212,255,.14),transparent),
    radial-gradient(ellipse 40% 50% at 20% 60%,rgba(108,92,231,.12),transparent);
}
.hero .wrap{position:relative;z-index:1;display:flex;flex-direction:column;gap:40px}

/* Hero brand plate (wide logo nameplate) */
.hero-brand{text-align:center;width:100%}
.hero-brand-plate{
  display:inline-block;
  background:linear-gradient(180deg,#ffffff 0%,#f0f0f0 100%);
  border-radius:16px;
  padding:28px 56px;
  box-shadow:
    0 16px 56px rgba(0,0,0,.4),
    0 0 0 1px rgba(255,255,255,.06),
    inset 0 1px 0 rgba(255,255,255,.8);
}
.hero-brand-plate img{max-width:580px;width:100%;height:auto}

/* Hero grid (copy + images) */
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;width:100%}
.hero-copy h2{font-size:clamp(2.4rem,4.5vw,4.6rem);letter-spacing:-.05em}
.hero-copy .lead{color:var(--c-muted);font-size:1.1rem;margin:24px 0 36px;max-width:520px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}

.hero-img-stack{position:relative}
.hero-img-stack .img-main{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);
  border:1px solid var(--c-line);
}
.hero-img-stack .img-main img{width:100%;height:420px;object-fit:cover}
.hero-img-stack .img-float{
  position:absolute;bottom:-32px;left:-24px;width:200px;
  border-radius:var(--r);border:3px solid var(--c-bg);box-shadow:var(--shadow);overflow:hidden;
}
.hero-img-stack .img-float img{width:100%;height:140px;object-fit:cover}

/* --- Buttons --- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-weight:700;font-size:.95rem;
  text-decoration:none;border:1px solid transparent;cursor:pointer;transition:.2s;
}
.btn-primary{color:var(--c-bg);background:linear-gradient(135deg,var(--c-accent),#80ffea);border:none}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 36px rgba(0,212,255,.3);text-decoration:none}
.btn-outline{color:var(--c-text);border-color:var(--c-line-h);background:transparent}
.btn-outline:hover{border-color:var(--c-accent);color:var(--c-accent);text-decoration:none}

/* --- Stats Row --- */
.stats-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--c-line);border-radius:var(--r-lg);overflow:hidden;
  margin:0 auto;
}
.stat{
  padding:40px 28px;text-align:center;
  background:var(--c-surface);
}
.stat .num{font-size:2.8rem;font-weight:800;letter-spacing:-.04em;color:var(--c-accent)}
.stat .label{color:var(--c-muted);font-size:.85rem;margin-top:8px}

/* --- Cards --- */
.card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r);padding:32px;transition:.25s;position:relative;overflow:hidden;
}
.card:hover{border-color:var(--c-line-h);transform:translateY(-4px);box-shadow:var(--shadow)}
.card::after{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--c-accent),var(--c-accent2));
  opacity:0;transition:.3s;
}
.card:hover::after{opacity:1}
.card h4{font-size:1.2rem;margin-bottom:10px}
.card p{color:var(--c-muted);font-size:.95rem}
.card .icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  margin-bottom:18px;font-size:1.4rem;font-weight:800;
  background:linear-gradient(135deg,rgba(0,212,255,.15),rgba(108,92,231,.15));
  color:var(--c-accent);border:1px solid rgba(0,212,255,.15);
}

.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}

/* --- Image Card --- */
.img-card{
  border-radius:var(--r);overflow:hidden;border:1px solid var(--c-line);
  background:var(--c-surface);transition:.25s;
}
.img-card:hover{border-color:var(--c-line-h);transform:translateY(-4px);box-shadow:var(--shadow)}
.img-card .thumb{overflow:hidden;position:relative}
.img-card .thumb img{width:100%;height:260px;object-fit:cover;transition:.4s}
.img-card:hover .thumb img{transform:scale(1.04)}
.img-card .body{padding:24px}
.img-card .body h4{font-size:1.1rem;margin-bottom:8px}
.img-card .body p{color:var(--c-muted);font-size:.9rem}
.img-card .tag{
  position:absolute;top:14px;left:14px;
  padding:5px 12px;border-radius:999px;font-size:.72rem;font-weight:700;
  letter-spacing:.1em;text-transform:uppercase;
  background:rgba(0,0,0,.6);backdrop-filter:blur(8px);color:var(--c-accent);
  border:1px solid rgba(0,212,255,.2);
}

/* --- Spec Table --- */
.spec-table{width:100%;border-collapse:collapse}
.spec-table th,.spec-table td{
  padding:16px 20px;text-align:left;border-bottom:1px solid var(--c-line);font-size:.95rem;
}
.spec-table th{color:var(--c-muted);font-weight:600;width:180px;white-space:nowrap}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:none}
.spec-table td strong{color:var(--c-accent)}

/* --- Page Hero (sub pages) --- */
.page-hero{
  position:relative;padding:120px 0 60px;overflow:hidden;
}
.page-hero::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse 60% 80% at 30% 40%,rgba(0,212,255,.1),transparent);
}
.page-hero .wrap{position:relative;z-index:1}
.page-hero h1{font-size:clamp(2.4rem,4.5vw,4.4rem);letter-spacing:-.04em;margin-top:8px}
.page-hero .page-lead{color:var(--c-muted);font-size:1.1rem;max-width:600px;margin-top:16px}

/* --- Section --- */
.section{padding:80px 0}
.section--alt{background:var(--c-surface)}
.section--band{
  background:linear-gradient(135deg,rgba(0,212,255,.06),rgba(108,92,231,.06));
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
}

/* --- Process Strip --- */
.process-strip{display:flex;gap:2px;border-radius:var(--r);overflow:hidden}
.process-strip .step{
  flex:1;padding:28px 16px;text-align:center;
  background:var(--c-surface);position:relative;
}
.process-strip .step .num{
  font-size:.7rem;letter-spacing:.18em;color:var(--c-accent);font-weight:700;
  margin-bottom:8px;display:block;
}
.process-strip .step strong{font-size:.95rem}

/* --- Two Column Content --- */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.two-col--flip{direction:rtl}
.two-col--flip>*{direction:ltr}
.prose{max-width:560px}
.prose p{color:var(--c-muted);margin-bottom:16px}
.prose p:last-child{margin-bottom:0}
.img-frame{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);
  box-shadow:var(--shadow);
}
.img-frame img{width:100%;display:block}

/* --- Timeline --- */
.timeline{position:relative;padding-left:48px}
.timeline::before{
  content:'';position:absolute;left:18px;top:0;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--c-accent),var(--c-accent2),transparent);
}
.timeline-item{position:relative;padding-bottom:40px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:'';position:absolute;left:-35px;top:6px;
  width:12px;height:12px;border-radius:50%;
  background:var(--c-accent);border:3px solid var(--c-bg);
  box-shadow:0 0 0 2px var(--c-accent);
}
.timeline-item .year{font-size:.82rem;color:var(--c-accent);font-weight:700;letter-spacing:.1em;margin-bottom:4px}
.timeline-item h4{font-size:1.15rem;margin-bottom:6px}
.timeline-item p{color:var(--c-muted);font-size:.95rem}

/* --- SHARE Meaning --- */
.share-letters{display:grid;gap:12px}
.share-letter{
  display:flex;align-items:center;gap:20px;
  padding:20px 24px;border-radius:var(--r);
  background:var(--c-surface);border:1px solid var(--c-line);
  transition:.2s;
}
.share-letter:hover{border-color:var(--c-line-h);background:var(--c-surface2)}
.share-letter .char{
  width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
  font-size:1.5rem;font-weight:900;flex-shrink:0;
  background:linear-gradient(135deg,var(--c-accent),var(--c-accent2));
  color:#fff;
}
.share-letter .word{font-weight:700;font-size:1.05rem}
.share-letter .meaning{color:var(--c-muted);font-size:.9rem;margin-top:2px}

/* --- Contact Form --- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
.contact-info dl{display:grid;gap:20px;margin-top:24px}
.contact-info dt{font-size:.82rem;color:var(--c-dim);letter-spacing:.08em;text-transform:uppercase}
.contact-info dd{font-size:1.05rem;font-weight:600}
.contact-form-panel{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:40px;
}
.form-field{margin-bottom:20px}
.form-field label{display:block;font-size:.88rem;color:var(--c-muted);margin-bottom:8px;font-weight:600}
.form-field input,.form-field textarea{
  width:100%;padding:14px 18px;border-radius:14px;
  border:1px solid var(--c-line);background:rgba(255,255,255,.03);
  color:var(--c-text);transition:.2s;
}
.form-field input:focus,.form-field textarea:focus{
  outline:none;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(0,212,255,.12);
}
.form-field input::placeholder,.form-field textarea::placeholder{color:var(--c-dim)}

/* --- Footer --- */
.site-footer{
  border-top:1px solid var(--c-line);padding:64px 0 32px;
  background:var(--c-surface);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
.footer-brand{max-width:300px}
.footer-brand img{height:36px;margin-bottom:16px}
.footer-brand p{color:var(--c-muted);font-size:.9rem}
.footer-col h5{font-size:.82rem;letter-spacing:.15em;text-transform:uppercase;color:var(--c-dim);margin-bottom:16px}
.footer-col a{display:block;color:var(--c-muted);font-size:.92rem;padding:4px 0;text-decoration:none;transition:.15s}
.footer-col a:hover{color:var(--c-text)}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;
  padding-top:24px;border-top:1px solid var(--c-line);
  font-size:.82rem;color:var(--c-dim);
}

/* --- Map placeholder --- */
.map-embed{
  border-radius:var(--r);overflow:hidden;border:1px solid var(--c-line);
  height:340px;background:var(--c-surface2);
}
.map-embed iframe{width:100%;height:100%;border:none;filter:grayscale(.7) invert(.92) contrast(1.1);opacity:.7}

/* --- Gallery Mosaic --- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.gallery .gal-item{
  border-radius:12px;overflow:hidden;position:relative;cursor:pointer;
}
.gallery .gal-item img{width:100%;height:220px;object-fit:cover;transition:.4s}
.gallery .gal-item:hover img{transform:scale(1.06)}
.gallery .gal-item.wide{grid-column:span 2}
.gallery .gal-item.tall{grid-row:span 2}
.gallery .gal-item.tall img{height:100%}

/* --- X / Twitter Feed --- */
.x-feed-section{background:var(--c-surface)}
.x-icon{
  width:22px;height:22px;background:var(--c-text);border-radius:4px;
  display:inline-flex;align-items:center;justify-content:center;font-size:.9rem;font-weight:900;color:var(--c-bg);
  vertical-align:middle;
}
.x-handle{
  display:inline-flex;align-items:center;gap:8px;margin-top:8px;
  padding:12px 24px;border-radius:999px;
  border:1px solid var(--c-line-h);color:var(--c-text);text-decoration:none;font-weight:700;transition:.2s;
}
.x-handle:hover{border-color:var(--c-accent);color:var(--c-accent);text-decoration:none}

/* Tweet grid */
.tweet-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.tweet-card{
  padding:24px;border-radius:var(--r);
  background:var(--c-surface2);border:1px solid var(--c-line);
  transition:.25s;text-decoration:none;display:flex;flex-direction:column;color:var(--c-text);
}
.tweet-card:hover{border-color:var(--c-accent);transform:translateY(-4px);box-shadow:0 16px 48px rgba(0,0,0,.4);text-decoration:none}
.tweet-card .tc-header{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.tweet-card .tc-avatar{
  width:42px;height:42px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--c-accent),var(--c-accent2));
  display:grid;place-items:center;font-weight:800;font-size:1rem;color:#fff;
}
.tweet-card .tc-name{font-weight:700;font-size:.92rem}
.tweet-card .tc-handle{font-size:.78rem;color:var(--c-dim)}
.tweet-card .tc-text{font-size:.95rem;line-height:1.75;flex:1}
.tweet-card .tc-date{font-size:.75rem;color:var(--c-dim);margin-top:14px;padding-top:12px;border-top:1px solid var(--c-line)}
.tweet-card .tc-xmark{margin-left:auto;font-size:.85rem;color:var(--c-dim)}

@media(max-width:900px){.tweet-grid{grid-template-columns:1fr}}
@media(max-width:640px){.tweet-grid{grid-template-columns:1fr}}

/* --- Anim --- */
.fade-up{opacity:0;transform:translateY(24px);transition:.6s cubic-bezier(.22,1,.36,1)}
.fade-up.is-visible{opacity:1;transform:none}

/* --- Responsive --- */
@media(max-width:1024px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .hero-grid,.two-col,.two-col--flip,.contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .process-strip{flex-wrap:wrap}
  .process-strip .step{flex-basis:calc(33% - 2px)}
  .hero-brand-plate{padding:20px 32px}
}
@media(max-width:640px){
  :root{--w:min(100% - 24px,1320px)}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .stats-row{grid-template-columns:1fr}
  .hero{padding:80px 0 48px}
  .hero .wrap{gap:28px}
  .hero-copy h2{font-size:2.2rem}
  .hero-brand-plate{padding:14px 20px;border-radius:12px}
  .page-hero{padding:96px 0 40px}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .gallery .gal-item.wide{grid-column:span 1}
  .footer-grid{grid-template-columns:1fr}
  .process-strip .step{flex-basis:calc(50% - 2px)}
  .site-header .wrap{height:auto;padding:14px 0;flex-wrap:wrap}
  nav.main-nav{display:none}
  nav.main-nav.open{display:flex;flex-basis:100%;flex-direction:column;gap:4px;padding-top:12px}
  .menu-toggle{display:block}
}