:root {
  --bg: #f5f7f9;
  --surface: #ffffff;
  --ink: #111827;
  --muted: #64717f;
  --line: #d8e0e6;
  --accent: #0f766e;
  --danger: #9f1d1d;
  --shadow: 0 24px 70px rgba(17, 24, 39, 0.12);
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.10), transparent 32%),
    linear-gradient(315deg, rgba(37, 99, 235, 0.07), transparent 34%),
    var(--bg);
  letter-spacing: 0;
}

button,
input {
  font: inherit;
}

.auth-page {
  display: grid;
  min-height: 100vh;
  place-items: center;
}

.auth-shell {
  width: min(100% - 32px, 430px);
}

.login-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 36px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.login-panel h1 {
  margin: 0 0 24px;
  font-size: 28px;
  line-height: 1.1;
  font-weight: 750;
}

.login-form {
  display: grid;
  gap: 18px;
}

.login-form label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.login-form input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 13px 14px;
  color: var(--ink);
  background: #fff;
  outline: none;
}

.login-form input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.13);
}

.login-form button {
  min-height: 46px;
  border: 0;
  border-radius: 6px;
  color: #fff;
  background: var(--ink);
  font-weight: 850;
  cursor: pointer;
}

.alert {
  margin: 0 0 18px;
  border: 1px solid rgba(159, 29, 29, 0.25);
  border-radius: 6px;
  padding: 11px 12px;
  color: var(--danger);
  background: rgba(159, 29, 29, 0.06);
  font-weight: 750;
}