:root {
  --bg: #0b1020;
  --panel: rgba(15, 23, 42, 0.94);
  --panel-border: rgba(148, 163, 184, 0.18);
  --text: #e5eefb;
  --muted: #94a3b8;
  --accent: #60a5fa;
  --danger: #f87171;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, system-ui, sans-serif;
  background: radial-gradient(circle at top, rgba(37,99,235,0.18), transparent 30%), linear-gradient(180deg, #020617 0%, var(--bg) 100%);
  color: var(--text);
}
.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-card {
  width: min(460px, 100%);
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 28px;
  box-shadow: 0 30px 80px rgba(2, 6, 23, 0.5);
  padding: 32px;
}
.eyebrow {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
}
h1 {
  margin: 0;
  font-family: Manrope, Inter, sans-serif;
  font-size: 34px;
}
.subtitle {
  margin: 10px 0 24px;
  color: var(--muted);
  line-height: 1.5;
}
.login-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-weight: 600;
}
input {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--panel-border);
  background: rgba(15, 23, 42, 0.9);
  color: var(--text);
  padding: 12px 14px;
}
button {
  border: 0;
  border-radius: 14px;
  padding: 12px 16px;
  font-weight: 800;
  background: linear-gradient(135deg, #60a5fa, #2563eb);
  color: white;
  cursor: pointer;
}
.error {
  margin: 0;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.28);
  color: #fecaca;
}
.hidden { display: none; }
.login-help {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--panel-border);
  color: var(--muted);
}
.login-help strong {
  color: var(--text);
}
.login-help ul {
  margin: 8px 0 0;
  padding-left: 18px;
}