:root {
  color-scheme: dark;
  --bg-root: #07080d;
  --bg-surface: #0f111a;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent-primary: #7c3aed;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--bg-root);
  color: var(--text-primary);
  font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.5;
}

.login-card {
  width: 100%;
  max-width: 480px;
  padding: 32px;
  background: var(--bg-surface);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 16px;
}

h1 {
  margin: 0 0 12px;
  font-size: 24px;
  line-height: 1.3;
}

p {
  margin: 0 0 24px;
  color: var(--text-secondary);
}

.login-button {
  display: block;
  padding: 14px 16px;
  border-radius: 8px;
  background: var(--accent-primary);
  color: var(--text-primary);
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  width: 100%;
  border: 0;
  font: inherit;
  cursor: pointer;
}

label {
  display: block;
  margin: 16px 0 8px;
}

input {
  width: 100%;
  min-height: 48px;
  margin-bottom: 16px;
  padding: 12px;
  border: 1px solid #64748b;
  border-radius: 8px;
  background: var(--bg-root);
  color: var(--text-primary);
  font: inherit;
}

input:focus-visible {
  outline: 3px solid #c4b5fd;
  outline-offset: 2px;
}

button:disabled {
  opacity: 0.6;
  cursor: wait;
}

#login-error {
  color: #fda4af;
}

.login-button:hover {
  background: #6d28d9;
}

.login-button:focus-visible {
  outline: 3px solid #c4b5fd;
  outline-offset: 4px;
}