/* Login and 404 pages — charcoal, like the deck's title slide */
:root { color-scheme: dark; }
* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh; display: grid; place-items: center; padding: 24px 16px;
  background: #1B1D20;
  color: #ECE8DF; font-family: 'Inter Tight', 'Inter', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
.login {
  width: 100%; max-width: 420px; padding: 40px 32px;
  background: #23262A; border: 1px solid #34373B; border-radius: 8px;
}
.logo { width: 168px; height: auto; display: block; margin-bottom: 32px; }
.eyebrow { margin: 0 0 12px; font-family: 'IBM Plex Mono', monospace; font-size: 12px; letter-spacing: .18em; text-transform: uppercase; color: #8E918B; }
h1 { margin: 0 0 12px; font-weight: 300; font-size: 42px; line-height: 1.05; letter-spacing: -0.03em; color: #C9BE96; }
.lead { margin: 0 0 28px; color: #A7AAA3; line-height: 1.55; }
label { display: block; margin-bottom: 8px; font-family: 'IBM Plex Mono', monospace; font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: #C9BE96; }
input[type=password] {
  width: 100%; padding: 12px 14px; font: inherit; font-size: 16px; color: #ECE8DF;
  background: #1B1D20; border: 1px solid #34373B; border-radius: 6px;
}
input[type=password]:focus { outline: none; border-color: #C9BE96; box-shadow: 0 0 0 3px rgba(201, 190, 150, .25); }
.error { margin: 10px 0 0; color: #E08B6B; font-size: 14px; }
button {
  margin-top: 20px; width: 100%; min-height: 46px; cursor: pointer;
  background: #C9BE96; color: #16181B; border: 0; border-radius: 4px;
  font-family: inherit; font-weight: 500; font-size: 16px;
}
button:hover { background: #D8CFA9; }
button:focus-visible { outline: 2px solid #C9BE96; outline-offset: 3px; }
.login a { color: #C9BE96; }