:root{
  --bg0:#0b1220;
  --bg1:#0f1a2e;
  --card:#121c30cc;
  --stroke:#1f2a44;
  --text:#e8eefc;
  --muted:#a6b3d2;
  --accent:#2f8cff;
  --accent2:#00d1ff;
  --shadow: 0 18px 60px rgba(0,0,0,.55);
  --radius: 22px;
}

[data-theme="light"]{
  --bg0:#eef3ff;
  --bg1:#f8fbff;
  --card:#ffffffcc;
  --stroke:#d6deef;
  --text:#0c1426;
  --muted:#44506a;
  --accent:#1f6fff;
  --accent2:#2fb6ff;
  --shadow: 0 18px 60px rgba(6,18,42,.18);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color:var(--text);
  background: radial-gradient(1200px 900px at 15% 20%, rgba(47,140,255,.22), transparent 55%),
              radial-gradient(900px 700px at 85% 20%, rgba(0,209,255,.16), transparent 55%),
              linear-gradient(180deg, var(--bg0), var(--bg1));
  overflow-x:hidden;
}

.bg{
  position:fixed; inset:0;
  background:
    linear-gradient(180deg, rgba(0,0,0,.25), rgba(0,0,0,.55)),
    url('/bg.ppm') center/cover no-repeat;
  opacity:.35;
  filter:saturate(.95) contrast(1.05);
  pointer-events:none;
}

.shell{
  position:relative;
  min-height:100dvh;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:flex-start;
  padding:24px 16px 36px;
  gap:18px;
}

.topbar{
  width:min(1040px, 100%);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:10px 12px;
  border:1px solid color-mix(in oklab, var(--stroke) 80%, transparent);
  border-radius:999px;
  background: color-mix(in oklab, var(--card) 70%, transparent);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(0,0,0,.18);
}

.brand{display:flex; align-items:center; gap:10px; color:inherit; text-decoration:none; font-weight:650; letter-spacing:.2px}
.dot{width:12px;height:12px;border-radius:999px;background: radial-gradient(circle at 30% 30%, #fff, var(--accent)); box-shadow:0 0 0 4px rgba(47,140,255,.18)}
.nav{display:flex; gap:14px}
.nav__link{color:var(--muted); text-decoration:none; font-size:14px}
.nav__link:hover{color:var(--text)}

.iconbtn{
  width:42px;height:42px;border-radius:999px;
  border:1px solid var(--stroke);
  background: color-mix(in oklab, var(--card) 75%, transparent);
  color:inherit;
  display:grid; place-items:center;
  cursor:pointer;
}
.iconbtn__dot{width:14px;height:14px;border-radius:999px;background:linear-gradient(135deg,var(--accent),var(--accent2))}

.card{
  width:min(1040px, 100%);
  border-radius: var(--radius);
  border:1px solid color-mix(in oklab, var(--stroke) 85%, transparent);
  background: color-mix(in oklab, var(--card) 85%, transparent);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
  overflow:hidden;
}

.card__inner{
  padding:28px;
  display:grid;
  grid-template-columns: 1fr;
  gap:14px;
}

.kicker{font-size:12px; letter-spacing:.22em; color:var(--muted)}
.title{font-size: clamp(28px, 4vw, 44px); margin:0; line-height:1.05}
.accent{color:var(--accent)}
.sub{margin:0; color:var(--muted); max-width:60ch}

.form{margin-top:8px; display:grid; gap:12px; max-width:520px}
.field{display:grid; gap:8px}
.field__label{font-size:13px; color:var(--muted)}
.field__input{
  width:100%;
  padding:12px 14px;
  border-radius: 14px;
  border:1px solid var(--stroke);
  background: color-mix(in oklab, var(--card) 90%, transparent);
  color:var(--text);
  outline:none;
}
.field__input:focus{border-color: color-mix(in oklab, var(--accent) 70%, var(--stroke)); box-shadow:0 0 0 4px rgba(47,140,255,.16)}

.row{display:flex; gap:10px; flex-wrap:wrap}
.btn{
  padding:11px 14px;
  border-radius: 999px;
  border:1px solid var(--stroke);
  background: transparent;
  color:var(--text);
  cursor:pointer;
  font-weight:600;
}
.btn:hover{border-color: color-mix(in oklab, var(--accent) 55%, var(--stroke));}
.btn--ghost{color:var(--muted)}
.btn--primary{
  border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color:white;
}

.hint{margin:6px 0 0; font-size:13px; color:var(--muted)}
.status{margin:0; font-size:13px}
.status--ok{color: color-mix(in oklab, #3cffb1 65%, var(--text))}
.status--err{color: color-mix(in oklab, #ff4d7d 70%, var(--text))}

.footer{margin-top:8px; display:flex; align-items:center; justify-content:space-between; gap:10px; flex-wrap:wrap}
.social{display:flex; gap:10px; align-items:center; flex-wrap:wrap; color:var(--muted); font-size:13px}
.social a{color:inherit}
.social a:hover{color:var(--text)}
.sep{opacity:.6}
.fineprint{font-size:12px; color:var(--muted)}

@media (min-width: 900px){
  .card__inner{padding:44px}
}

@media (prefers-reduced-motion: reduce){
  *{scroll-behavior:auto}
}