:root {
  --ink: #1c241c;
  --muted: #5c675c;
  --accent: #2f4f3e;
  --line: #d9d2c2;
  --card: #fffdf8;
  --panel: #f7f3ea;
  --bg: #ebe6da;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 0%, #e3dccb 0%, transparent 42%),
    radial-gradient(circle at 92% 12%, #d7e3d7 0%, transparent 36%),
    var(--bg);
  padding: 24px;
}
.login-card {
  width: min(420px, 100%);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 32px 28px 28px;
  box-shadow: 0 16px 40px rgba(28, 36, 28, 0.08);
}
h1 {
  margin: 0;
  font-size: 2.2rem;
  color: var(--accent);
}
.lead {
  margin: 8px 0 22px;
  color: var(--muted);
}
label {
  display: grid;
  gap: 6px;
  margin-bottom: 14px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--muted);
  font-family: system-ui, sans-serif;
}
input {
  font: inherit;
  font-family: system-ui, sans-serif;
  font-weight: 600;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  background: #fff;
}
button {
  width: 100%;
  margin-top: 8px;
  font: inherit;
  font-family: system-ui, sans-serif;
  font-weight: 700;
  border: 0;
  border-radius: 999px;
  padding: 12px 16px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}
button:hover { filter: brightness(1.05); }
.error {
  margin: 4px 0 10px;
  padding: 10px 12px;
  border-radius: 10px;
  background: #f8eaea;
  color: #8a3030;
  font-family: system-ui, sans-serif;
  font-size: 0.9rem;
}