:root {
  --bg: #f7f7f9;
  --card: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --accent: #24b47e;
  --border: #e5e7eb;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: white;
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 800;
  font-size: 1.1rem;
  text-decoration: none;
  color: var(--text);
}

.nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav a {
  text-decoration: none;
  color: var(--muted);
}

.nav a.active {
  color: var(--text);
  font-weight: 700;
}

.nav button {
  border: none;
  background: none;
  color: var(--muted);
  cursor: pointer;
}

.main {
  padding: 28px 16px;
}

.card {
  max-width: 720px;
  margin: 0 auto;
  background: var(--card);
  border-radius: 14px;
  padding: 24px;
  box-shadow: 0 10px 24px rgba(0,0,0,0.08);
}

h1 {
  margin: 0 0 6px;
}

.muted {
  color: var(--muted);
}

.back-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 12px;
  background: #fff;
}

.back-link:hover {
  color: var(--text);
  background: #f9fafb;
}

form {
  margin-top: 18px;
  display: grid;
  gap: 14px;
}

label,
legend {
  font-size: 0.92rem;
  font-weight: 600;
}

input,
select {
  width: 100%;
  margin-top: 6px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 1rem;
  background: #fff;
}

input:disabled {
  background: #f9fafb;
  color: #6b7280;
}

fieldset {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
}

.check-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
  font-weight: 500;
}

.check-row input {
  width: auto;
  margin: 0;
}

.actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.primary {
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 700;
  cursor: pointer;
}

.status {
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 0.92rem;
}

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

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

.hidden { display: none; }

/* Danger zone */

.danger-zone {
  margin-top: 16px;
  border: 1px solid #fca5a5;
}

.danger-zone h2 {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 6px;
  color: #dc2626;
}

button.danger {
  background: none;
  border: 1px solid #dc2626;
  color: #dc2626;
  cursor: pointer;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-top: 8px;
}

button.danger:hover {
  background: #dc2626;
  color: white;
}

/* Modal */

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal.hidden {
  display: none;
}

.modal-card {
  background: white;
  border-radius: 16px;
  padding: 28px;
  max-width: 400px;
  width: 90%;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.modal-card h3 {
  margin: 0 0 8px;
}

.modal-actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
  flex-wrap: wrap;
}

button.ghost {
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 0.9rem;
}

.footer {
  padding: 12px 24px;
  font-size: 0.875rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-links {
  display: flex;
  gap: 28px;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--text);
}