:root {
  --bg: #f0f4f8;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --border: #e5e7eb;
  --danger: #dc2626;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.site-header {
  margin-bottom: 4px;
}

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

.brand-logo {
  flex-shrink: 0;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  background: #fff;
  box-shadow: 0 4px 14px rgba(34, 197, 94, 0.25);
}

.brand-text h1 {
  margin: 0 0 6px;
  font-size: 1.5rem;
}

.brand-text p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 480px) {
  .brand {
    flex-direction: column;
    text-align: center;
  }

  .brand-text h1 {
    font-size: 1.25rem;
  }
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-top: 16px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.card h2 {
  margin: 0 0 16px;
  font-size: 1.1rem;
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
}

input,
select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  margin-bottom: 14px;
}

button {
  font-size: 1rem;
  padding: 10px 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

button.primary {
  background: var(--primary);
  color: #fff;
}

button.primary:hover:not(:disabled) {
  background: var(--primary-hover);
}

button.secondary {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--border);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.row button {
  flex: 1;
  min-width: 140px;
}

.status {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.9rem;
}

.status.info {
  background: #eef2ff;
  color: #3730a3;
}

.status.error {
  background: #fef2f2;
  color: var(--danger);
}

.status.success {
  background: #ecfdf5;
  color: #047857;
}

.hidden {
  display: none !important;
}

.user-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 8px;
  font-size: 0.9rem;
}

.user-bar span {
  color: var(--muted);
}

.hint {
  font-size: 0.8rem;
  color: var(--muted);
  margin: -8px 0 14px;
}