:root{
  --bg0:#05060b;
  --bg1:#070b18;
  --neon:#7cffd7;
  --ice:#78b4ff;
  --line:rgba(124,255,215,.22);
  --line2:rgba(120,180,255,.16);
  --panel:rgba(0,0,0,.35);
  --panel2:rgba(0,0,0,.22);
  --text:rgba(255,255,255,.92);
  --muted:rgba(255,255,255,.62);
  --radius:16px;
  --max:1100px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  color:var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono","Courier New", monospace;
  background:
    radial-gradient(1200px 800px at 20% 10%, rgba(124,255,215,.10), transparent 60%),
    radial-gradient(900px 600px at 80% 30%, rgba(120,180,255,.08), transparent 60%),
    linear-gradient(180deg, var(--bg1), var(--bg0));
  overflow-x:hidden;
}

/* background layers injected by matrix.js:
   canvas#sairen-matrix-canvas (z=0)
   #sairen-geometry-overlay (z=1)
*/
main, header, footer{position:relative; z-index:2;}

a{color:inherit; text-decoration:none}
a:focus-visible, button:focus-visible, select:focus-visible{outline:2px solid rgba(124,255,215,.5); outline-offset:3px}

.site-header{
  position:sticky; top:0;
  display:flex; align-items:center; justify-content:space-between;
  gap:12px;
  padding:14px 16px;
  backdrop-filter: blur(10px);
  background: linear-gradient(180deg, rgba(0,0,0,.55), rgba(0,0,0,.18));
  border-bottom:1px solid rgba(124,255,215,.12);
}

.brand{
  display:inline-flex; align-items:center; gap:10px;
  cursor:pointer;
  user-select:none;
}
.brand .brand-text{
  font-weight:700;
  letter-spacing: 2px;
  text-shadow: 0 0 18px rgba(124,255,215,.18), 0 0 26px rgba(120,180,255,.10);
}

.header-right{
  display:flex; align-items:center; gap:10px;
}

.lang-select{
  background: rgba(0,0,0,.28);
  border:1px solid rgba(124,255,215,.18);
  color: var(--text);
  border-radius: 12px;
  padding:8px 10px;
}

.hamburger{
  width:44px; height:44px;
  border-radius: 12px;
  border:1px solid rgba(124,255,215,.18);
  background: rgba(0,0,0,.28);
  color: var(--text);
  display:inline-flex; align-items:center; justify-content:center;
  cursor:pointer;
}

.hamburger .bars{
  width:18px; height:12px; position:relative;
}
.hamburger .bars span{
  position:absolute; left:0; right:0;
  height:2px; border-radius:2px;
  background: linear-gradient(90deg, rgba(124,255,215,.95), rgba(120,180,255,.75));
}
.hamburger .bars span:nth-child(1){top:0}
.hamburger .bars span:nth-child(2){top:5px; opacity:.85}
.hamburger .bars span:nth-child(3){bottom:0; opacity:.70}

.page{
  max-width: var(--max);
  margin: 0 auto;
  padding: 22px 16px 48px;
}

.hero{
  padding: 18px 0 10px;
}
.hero h1{
  margin:0;
  font-size: clamp(26px, 4vw, 44px);
  line-height:1.15;
  letter-spacing: 1px;
}
.hero p{
  margin:12px 0 0;
  color: var(--muted);
  line-height:1.7;
  max-width: 58ch;
}

.tiles{
  margin-top:18px;
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap:14px;
}
@media (max-width: 900px){
  .tiles{grid-template-columns: repeat(2, minmax(0,1fr));}
}
@media (max-width: 560px){
  .tiles{grid-template-columns: 1fr;}
}

.tile{
  border-radius: var(--radius);
  padding:18px 16px;
  background: linear-gradient(180deg, rgba(0,0,0,.28), rgba(0,0,0,.12));
  border:1px solid rgba(124,255,215,.18);
  position:relative;
  overflow:hidden;
  min-height: 120px;
}
.tile:before{
  content:"";
  position:absolute; inset:-2px;
  border-radius: var(--radius);
  background:
    radial-gradient(600px 180px at 10% 10%, rgba(124,255,215,.12), transparent 55%),
    radial-gradient(520px 240px at 90% 40%, rgba(120,180,255,.10), transparent 60%);
  opacity:.9;
  pointer-events:none;
}
.tile-inner{position:relative; z-index:1}
.tile-title{
  font-size: 22px;
  font-weight:800;
  letter-spacing: 2px;
  margin:0;
}
.tile-hint{
  margin:10px 0 0;
  color: var(--muted);
  letter-spacing: .5px;
}

.card{
  border-radius: var(--radius);
  padding: 18px 16px;
  background: linear-gradient(180deg, rgba(0,0,0,.30), rgba(0,0,0,.14));
  border:1px solid rgba(124,255,215,.18);
}

.page-title{
  margin:0 0 8px;
  font-size: 26px;
  letter-spacing: 2px;
}
.page-sub{margin:0; color:var(--muted); line-height:1.7}

.works-grid{
  margin-top: 14px;
  display:grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
@media (max-width: 900px){
  .works-grid{grid-template-columns: repeat(3, minmax(0,1fr));}
}
@media (max-width: 650px){
  .works-grid{grid-template-columns: repeat(2, minmax(0,1fr));}
}

.work-card{
  border-radius: 14px;
  border:1px solid rgba(124,255,215,.16);
  background: rgba(0,0,0,.20);
  overflow:hidden;
  position:relative;
  cursor:pointer;
}
.work-card img{
  width:100%;
  height: 220px;
  object-fit: cover;
  display:block;
}
.work-card .label{
  position:absolute; left:10px; bottom:10px;
  font-size:12px;
  color: rgba(255,255,255,.75);
  background: rgba(0,0,0,.35);
  border:1px solid rgba(124,255,215,.14);
  border-radius: 999px;
  padding:6px 10px;
}

.modal{
  position: fixed; inset:0;
  display:none;
  align-items:center; justify-content:center;
  background: rgba(0,0,0,.55);
  z-index: 999;
}
.modal.is-open{display:flex;}
.modal img{
  max-width: min(92vw, 980px);
  max-height: 88vh;
  object-fit: contain;
  border-radius: 16px;
  border:1px solid rgba(124,255,215,.18);
  background: rgba(0,0,0,.35);
}

.sns-grid{
  margin-top:14px;
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  align-items:center;
}

.sns-item{
  width:88px;
  height:88px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:16px;
  border:1px solid rgba(124,255,215,.18);
  background:rgba(0,0,0,.24);
}

.sns-item img{
  width:56px;
  height:56px;
  object-fit:contain;
  display:block;
}

.footer{
  padding: 18px 16px 30px;
  color: rgba(255,255,255,.55);
  text-align:center;
  border-top:1px solid rgba(124,255,215,.10);
  background: rgba(0,0,0,.18);
}

/* hamburger drawer */
.drawer-backdrop{
  position:fixed; inset:0;
  display:none;
  background: rgba(0,0,0,.45);
  z-index: 998;
}
.drawer-backdrop.is-open{display:block;}
.drawer{
  position:fixed;
  top: 12px;
  right: 12px;
  width: min(86vw, 360px);
  border-radius: 18px;
  border:1px solid rgba(124,255,215,.18);
  background: linear-gradient(180deg, rgba(0,0,0,.65), rgba(0,0,0,.30));
  backdrop-filter: blur(12px);
  z-index: 999;
  padding: 12px;
  display:none;
}
.drawer.is-open{display:block;}
.drawer a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 12px 12px;
  border-radius: 14px;
  border:1px solid rgba(124,255,215,.10);
  background: rgba(0,0,0,.18);
  margin-top: 10px;
}
.drawer a .chev{opacity:.65}