:root {
  --bg: #f7f6f1;
  --paper: #fffefa;
  --ink: #18211f;
  --muted: #5c6964;
  --line: #d9d6ca;
  --accent: #1f6f64;
  --accent-strong: #15564d;
  --danger: #8d2626;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(31, 111, 100, 0.07) 0 1px, transparent 1px 100%),
    linear-gradient(180deg, rgba(31, 111, 100, 0.05) 0 1px, transparent 1px 100%),
    var(--bg);
  background-size: 34px 34px;
}

.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}

.auth-panel {
  width: min(100%, 28rem);
  padding: 2rem;
  border: 1px solid var(--line);
  background: rgba(255, 254, 250, 0.96);
  box-shadow: 0 18px 45px rgba(26, 34, 32, 0.08);
}

.eyebrow {
  margin: 0 0 0.6rem;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.auth-panel h1 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2rem, 7vw, 3rem);
  line-height: 0.95;
}

.auth-copy {
  margin: 1rem 0 1.4rem;
  color: var(--muted);
  line-height: 1.55;
}

.auth-form {
  display: grid;
  gap: 0.75rem;
}

.auth-form label {
  font-weight: 800;
}

.auth-form input {
  width: 100%;
  padding: 0.82rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 0;
  background: #fff;
  color: var(--ink);
  font: inherit;
}

.auth-form input:focus {
  outline: 2px solid rgba(31, 111, 100, 0.28);
  border-color: var(--accent);
}

.auth-form input[type="submit"] {
  margin-top: 0.35rem;
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-weight: 800;
}

.auth-form input[type="submit"]:hover {
  background: var(--accent-strong);
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1.2rem 0;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.auth-divider::before,
.auth-divider::after {
  content: "";
  flex: 1;
  border-top: 1px solid var(--line);
}

.alert,
.notice {
  padding: 0.75rem 0.9rem;
  border-left: 4px solid var(--accent);
  background: rgba(219, 238, 233, 0.8);
  line-height: 1.45;
}

.alert {
  border-left-color: var(--danger);
  background: rgba(241, 221, 221, 0.9);
}

.secondary-link {
  margin: 1.1rem 0 0;
}

.secondary-link a {
  color: var(--accent-strong);
}