:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0b0c10;
  color: #f4f4f5;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: radial-gradient(circle at top, #20212a 0, #0b0c10 56%); }
button, input { font: inherit; }
.shell { width: min(1040px, calc(100% - 32px)); margin: 0 auto; padding: 48px 0; }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-bottom: 42px; }
.eyebrow { margin: 0 0 8px; color: #a1a1aa; text-transform: uppercase; letter-spacing: .14em; font-size: 12px; }
h1 { margin: 0; font-size: clamp(32px, 6vw, 64px); line-height: .98; }
.logout { border: 1px solid #3f3f46; background: #18181b; color: #fff; border-radius: 12px; padding: 10px 16px; cursor: pointer; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.card { min-height: 240px; display: flex; flex-direction: column; justify-content: space-between; padding: 24px; border: 1px solid #30303a; border-radius: 22px; color: inherit; text-decoration: none; background: rgba(24,24,27,.86); transition: transform .16s ease, border-color .16s ease; }
.card:hover { transform: translateY(-3px); border-color: #71717a; }
.card strong { font-size: 26px; }
.card span { color: #a1a1aa; line-height: 1.5; }
.card b { font-size: 30px; font-weight: 500; }
.login-shell { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card { width: min(420px, 100%); padding: 30px; border: 1px solid #30303a; border-radius: 22px; background: #18181b; box-shadow: 0 24px 80px rgba(0,0,0,.35); }
.login-card h1 { font-size: 36px; margin-bottom: 10px; }
.login-card p { color: #a1a1aa; margin: 0 0 24px; }
.login-card label { display: grid; gap: 8px; margin: 16px 0; color: #d4d4d8; }
.login-card input { width: 100%; border: 1px solid #3f3f46; border-radius: 12px; background: #0f0f12; color: #fff; padding: 12px 14px; }
.login-card button { width: 100%; margin-top: 8px; border: 0; border-radius: 12px; padding: 13px; color: #0b0c10; background: #f4f4f5; font-weight: 700; cursor: pointer; }
.error { padding: 10px 12px; border-radius: 10px; background: #3f1218; color: #fecdd3; }
@media (max-width: 760px) { .grid { grid-template-columns: 1fr; } .card { min-height: 180px; } .topbar { align-items: flex-start; } }