* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: system-ui, sans-serif; background: #f5f5f5; }
header { background: white; padding: 1rem 2rem; box-shadow: 0 1px 4px rgba(0,0,0,0.1); display: flex; justify-content: space-between; align-items: center; }
header h1 { font-size: 1.125rem; color: #333; }
.btn { padding: 0.5rem 1rem; border-radius: 4px; cursor: pointer; font-size: 0.875rem; }
.btn-primary { background: #2563eb; color: white; border: none; }
.btn-primary:hover { background: #1d4ed8; }
.btn-outline { background: none; border: 1px solid #ddd; color: #555; }
.btn-outline:hover { background: #f0f0f0; }
main { max-width: 1200px; margin: 2rem auto; padding: 0 1rem; }
.section { background: white; border-radius: 8px; box-shadow: 0 1px 4px rgba(0,0,0,0.1); padding: 1.5rem; margin-bottom: 1.5rem; }
h2 { font-size: 1rem; margin-bottom: 1rem; color: #333; }
table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
th { text-align: left; padding: 0.5rem 0.75rem; color: #666; border-bottom: 1px solid #eee; font-weight: 500; }
td { padding: 0.5rem 0.75rem; border-bottom: 1px solid #f0f0f0; }
tr:last-child td { border-bottom: none; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; }
.field label { display: block; font-size: 0.8125rem; color: #555; margin-bottom: 0.375rem; }
.field input, .field select { width: 100%; padding: 0.5rem; border: 1px solid #ddd; border-radius: 4px; font-size: 0.875rem; }
.field input:focus, .field select:focus { outline: none; border-color: #2563eb; }
.form-actions { margin-top: 1rem; display: flex; gap: 0.75rem; align-items: center; }
.msg { font-size: 0.875rem; }
.msg-ok  { color: #065f46; }
.msg-err { color: #dc2626; }
.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card { background: white; padding: 2rem; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.1); width: 320px; }
.login-card h1 { margin-bottom: 1.5rem; font-size: 1.125rem; }
.login-card input { width: 100%; padding: 0.625rem; border: 1px solid #ddd; border-radius: 4px; font-size: 1rem; margin-bottom: 1rem; }
.login-card input:focus { outline: none; border-color: #2563eb; }
.login-card button { width: 100%; padding: 0.75rem; background: #2563eb; color: white; border: none; border-radius: 4px; font-size: 1rem; cursor: pointer; }
.login-card button:hover { background: #1d4ed8; }
.login-error { color: #dc2626; font-size: 0.875rem; margin-top: 0.5rem; display: none; }
code { font-family: monospace; background: #f3f4f6; padding: 0.125rem 0.375rem; border-radius: 3px; font-size: 0.8125rem; }
.btn-edit { padding: 0.3rem 0.75rem; font-size: 0.8125rem; background: none; border: 1px solid #2563eb; color: #2563eb; border-radius: 4px; cursor: pointer; }
.btn-edit:hover { background: #eff6ff; }
.btn-del { padding: 0.3rem 0.75rem; font-size: 0.8125rem; background: none; border: 1px solid #dc2626; color: #dc2626; border-radius: 4px; cursor: pointer; margin-left: 0.375rem; }
.btn-del:hover { background: #fef2f2; }
.field input:disabled { background: #f9fafb; color: #9ca3af; cursor: not-allowed; }
.field textarea { width: 100%; padding: 0.5rem; border: 1px solid #ddd; border-radius: 4px; font-size: 0.875rem; font-family: inherit; resize: vertical; }
.field textarea:focus { outline: none; border-color: #2563eb; }
.field-wide { grid-column: 1 / -1; }

@media (max-width: 640px) {
    header { padding: 0.75rem 1rem; }
    header h1 { font-size: 1rem; }
    main { padding: 0 0.5rem; margin: 1rem auto; }
    .section { padding: 1rem; }
    .form-grid { grid-template-columns: 1fr; }
    .form-actions { flex-wrap: wrap; }
    .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    table { min-width: 540px; }
    .btn-edit, .btn-del { padding: 0.4rem 0.6rem; }
}