:root {
  --background: #e8e5ff;
  --background-card: #f5f4ff;
  --primary: #7c3aed;
  --primary-dark: #6d28d9;
  --text: #1f2937;
  --text-secondary: #6b7280;
  --border: #c4b5fd;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, var(--background) 0%, #f0eeff 100%);
  min-height: 100vh;
  line-height: 1.6;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

.site-header {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 24px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

.brand:hover {
  color: var(--primary);
  text-decoration: none;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 24px 64px;
}

.card {
  background: var(--background-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.08);
}

h1 {
  margin: 0 0 8px;
  font-size: 2rem;
  line-height: 1.2;
}

.updated {
  margin: 0 0 24px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

h2 {
  margin: 28px 0 10px;
  font-size: 1.2rem;
}

p,
li {
  color: var(--text-secondary);
  font-size: 1rem;
}

ul {
  margin: 0 0 16px;
  padding-left: 1.25rem;
}

.site-footer {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px 32px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 12px;
}

.delete-form {
  margin-top: 24px;
}

.field-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--text);
}

.field-input {
  width: 100%;
  max-width: 420px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 1rem;
  margin-bottom: 16px;
}

.field-input:focus {
  outline: 2px solid var(--primary);
  border-color: var(--primary);
}

.submit-btn {
  display: inline-block;
  padding: 12px 20px;
  border: none;
  border-radius: 10px;
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.submit-btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.form-message {
  margin-top: 20px;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 0.95rem;
}

.form-message-success {
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.form-message-error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

@media (max-width: 640px) {
  .card {
    padding: 24px 20px;
  }

  h1 {
    font-size: 1.65rem;
  }
}