:root {
  --color-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-border: #d8dce2;
  --color-text: #1f2937;
  --color-muted: #6b7280;
  --color-primary: #1e3a5f;
  --color-primary-dark: #16293f;
  --color-accent: #2f7a5f;
  --color-danger: #b3261e;
  --color-danger-bg: #fdecea;
  --color-notice-bg: #eaf3ee;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-heading: Georgia, "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
}

h1, h2, h3 {
  font-family: var(--font-heading);
  color: var(--color-primary-dark);
  line-height: 1.2;
}

a {
  color: var(--color-primary);
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-primary);
  color: #fff;
  padding: 0.9rem 1.5rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.site-header .brand {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: bold;
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-header nav a {
  color: #fff;
  text-decoration: none;
  font-size: 0.95rem;
  opacity: 0.9;
}

.site-header nav a:hover {
  opacity: 1;
  text-decoration: underline;
}

.user-name {
  font-weight: 600;
  margin-right: 0.5rem;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.5rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
}

.auth-card {
  max-width: 380px;
  margin: 3rem auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 2rem;
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-muted);
  margin: 0.75rem 0 0.25rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
input[type="time"],
select {
  width: 100%;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 0.95rem;
  font-family: inherit;
  background: #fff;
  color: var(--color-text);
}

input:focus,
select:focus,
button:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.5rem 1rem;
}

button {
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 0.55rem 1.1rem;
  font-size: 0.95rem;
  cursor: pointer;
  margin-top: 1rem;
}

button:hover {
  background: var(--color-primary-dark);
}

button.danger {
  background: var(--color-danger);
}

button.danger:hover {
  background: #8f1e18;
}

.inline-form {
  display: inline-block;
  margin: 0 0.25rem 0 0;
}

.inline-form button {
  margin-top: 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

th, td {
  text-align: left;
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
  vertical-align: middle;
}

th {
  color: var(--color-muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.03em;
}

.row-form-wrapper {
  padding: 0.4rem 0;
}

.row-form {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.row-cell {
  flex: 1 1 120px;
  min-width: 100px;
}

.row-actions {
  display: flex;
  gap: 0.5rem;
  flex: 0 0 auto;
}

.row-actions button {
  margin-top: 0;
}

.error {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid #f2c6c2;
  padding: 0.6rem 0.9rem;
  border-radius: 4px;
}

.notice {
  background: var(--color-notice-bg);
  color: var(--color-accent);
  border: 1px solid #cfe6da;
  padding: 0.6rem 0.9rem;
  border-radius: 4px;
}

.admin-links {
  list-style: none;
  padding: 0;
}

.admin-links li {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
}

.admin-links a {
  font-weight: 600;
  text-decoration: none;
}

.site-footer {
  text-align: center;
  color: var(--color-muted);
  font-size: 0.8rem;
  padding: 1.5rem;
}

.print-header {
  display: none;
}

.report-block {
  margin-bottom: 2rem;
}

@media (max-width: 640px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .row-form {
    flex-direction: column;
    align-items: stretch;
  }
}