:root {
  --bg: #0b0f1a;
  --bg2: #111827;
  --card: #0f1626;
  --fg: #e5e7eb;
  --muted: #94a3b8;
  --border: rgba(148, 163, 184, 0.18);
  --accent: #6366f1;
  --accent2: #22d3ee;
  --danger: #ef4444;
  --ok: #22c55e;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--fg);
  background: radial-gradient(1200px 800px at 50% -10%, #1e293b 0%, var(--bg) 55%);
  min-height: 100svh;
}
a { color: var(--accent2); }
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 24px; max-width: 1100px; margin: 0 auto;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.15rem; text-decoration: none; color: var(--fg); }
.brand .logo {
  width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  display: grid; place-items: center;
}
.brand .logo svg { width: 18px; height: 18px; fill: #fff; }
.nav-links { display: flex; gap: 10px; align-items: center; }
.center { display: flex; align-items: center; justify-content: center; padding: 32px 16px; }
.card {
  width: 100%; max-width: 420px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 28px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}
.card h1 { margin: 0 0 4px; font-size: 1.5rem; }
.card .sub { color: var(--muted); margin: 0 0 20px; font-size: .95rem; }
label { display: block; font-size: .85rem; color: var(--muted); margin: 14px 0 6px; }
input[type=email], input[type=password], input[type=text] {
  width: 100%; padding: 12px 14px; border-radius: 10px;
  border: 1px solid var(--border); background: #0b1120; color: var(--fg); font-size: 1rem;
}
input:focus { outline: none; border-color: var(--accent); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  width: 100%; margin-top: 18px; padding: 12px 18px; border: none; cursor: pointer;
  border-radius: 10px; font-size: 1rem; font-weight: 600; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
}
.btn:disabled { opacity: .6; cursor: default; }
.btn.secondary { background: transparent; border: 1px solid var(--border); color: var(--fg); }
.btn.ghost { background: rgba(148,163,184,.1); border: 1px solid var(--border); color: var(--fg); width: auto; margin: 0; padding: 8px 14px; font-size: .9rem; }
.msg { margin-top: 14px; padding: 10px 12px; border-radius: 10px; font-size: .9rem; display: none; }
.msg.err { display: block; background: rgba(239,68,68,.12); border: 1px solid rgba(239,68,68,.35); color: #fca5a5; }
.msg.ok { display: block; background: rgba(34,197,94,.12); border: 1px solid rgba(34,197,94,.35); color: #86efac; }
.foot { margin-top: 18px; text-align: center; color: var(--muted); font-size: .9rem; }
.app-wrap { max-width: 1100px; margin: 0 auto; padding: 24px 16px; }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.tile { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 20px; }
.tile .big { font-size: 2rem; font-weight: 700; }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: 999px; background: rgba(148,163,184,.1); border: 1px solid var(--border); font-size: .85rem; }
@media (max-width: 480px) { .nav { padding: 14px 16px; } }