:root {
  --ink: #111827;
  --muted: #6b7280;
  --accent: #0f766e;
  --accent-strong: #0b5f58;
  --paper: #f8f5f0;
  --card: #ffffff;
  --border: #e6dfd5;
  --title-font: "Playfair Display", "Times New Roman", serif;
  --body-font: "IBM Plex Sans", "Helvetica", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--body-font);
  color: var(--ink);
  background: radial-gradient(circle at top, #f4ede2 0%, var(--paper) 50%, #efe6d8 100%);
  min-height: 100vh;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  width: min(420px, 100%);
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.1);
}

.brand {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 24px;
}

.logo {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: var(--accent);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  letter-spacing: 1px;
}

h1 {
  font-family: var(--title-font);
  margin: 0 0 4px;
}

p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

form {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

input {
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  font-size: 14px;
}

button {
  border: none;
  background: var(--accent);
  color: #fff;
  padding: 12px 16px;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 600;
}

button:hover {
  background: var(--accent-strong);
}

.message {
  font-size: 13px;
  color: #b91c1c;
  min-height: 18px;
}