:root {
  --bg: #0b1220;
  --panel: #121a2b;
  --panel-border: #1e2a44;
  --text: #e8eef9;
  --muted: #93a0b8;
  --accent: #14b8a6;
  --accent-dim: #0f766e;
  --danger: #f87171;
  --input: #0a101c;
  --radius: 12px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; min-height: 100%; }
body {
  font-family: var(--font);
  background:
    radial-gradient(1200px 600px at 10% -10%, #134e4a55, transparent 60%),
    radial-gradient(900px 500px at 100% 0%, #1e3a8a33, transparent 55%),
    var(--bg);
  color: var(--text);
  line-height: 1.5;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap {
  max-width: 420px;
  margin: 0 auto;
  padding: 3.5rem 1.25rem 2rem;
}
.brand {
  display: flex; align-items: center; gap: .75rem;
  margin-bottom: 1.75rem;
}
.brand-mark {
  width: 40px; height: 40px; border-radius: 10px;
  background: linear-gradient(145deg, var(--accent), var(--accent-dim));
  display: grid; place-items: center; font-weight: 700; color: #042f2e;
  box-shadow: 0 8px 24px #14b8a633;
}
.brand h1 { font-size: 1.25rem; margin: 0; font-weight: 650; letter-spacing: .01em; }
.brand p { margin: 0; color: var(--muted); font-size: .85rem; }
.card {
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 1.5rem 1.35rem 1.35rem;
  backdrop-filter: blur(8px);
  box-shadow: 0 16px 40px #00000055;
}
.card h2 { margin: 0 0 .35rem; font-size: 1.15rem; }
.card .sub { margin: 0 0 1.25rem; color: var(--muted); font-size: .9rem; }
label { display: block; font-size: .8rem; color: var(--muted); margin: 0 0 .35rem; }
input[type=email], input[type=password] {
  width: 100%; padding: .7rem .85rem; margin-bottom: .9rem;
  border-radius: 8px; border: 1px solid var(--panel-border);
  background: var(--input); color: var(--text); font: inherit;
}
input:focus { outline: 2px solid #14b8a688; border-color: var(--accent); }
.row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin: .2rem 0 1.1rem; }
.row label.chk { display: flex; align-items: center; gap: .45rem; margin: 0; color: var(--muted); font-size: .85rem; }
button[type=submit] {
  width: 100%; padding: .75rem 1rem; border: 0; border-radius: 8px;
  background: linear-gradient(180deg, var(--accent), var(--accent-dim));
  color: #042f2e; font-weight: 650; font: inherit; cursor: pointer;
}
button[type=submit]:hover { filter: brightness(1.05); }
.foot { margin-top: 1.25rem; text-align: center; color: var(--muted); font-size: .8rem; }
.alert {
  background: #7f1d1d44; border: 1px solid #f8717166; color: #fecaca;
  padding: .75rem .9rem; border-radius: 8px; margin-bottom: 1rem; font-size: .9rem;
}
.page-narrow { max-width: 560px; margin: 4rem auto; padding: 0 1.25rem; }
.page-narrow h1 { font-size: 1.6rem; margin: 0 0 .5rem; }
.page-narrow p { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .85rem; }