:root {
  --primary: #1a56a8;
  --primary-dark: #123c78;
  --bg: #f5f7fa;
  --card-bg: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e2e8f0;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  background: var(--primary-dark);
  color: #fff;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: 16px 20px;
  gap: 12px;
}

.brand {
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  letter-spacing: 0.5px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.main-nav a {
  color: #dce7f7;
  text-decoration: none;
  font-weight: 500;
}

.main-nav a:hover,
.main-nav a.active {
  color: #fff;
}

.btn-portal {
  background: var(--primary);
  color: #fff !important;
  padding: 9px 16px;
  border-radius: 8px;
  font-weight: 600;
}

.btn-portal:hover {
  background: #16457f;
}

main.container {
  padding-top: 36px;
  padding-bottom: 56px;
  min-height: 60vh;
}

.hero {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border-radius: var(--radius);
  padding: 48px 36px;
  margin-bottom: 40px;
}

.hero h1 {
  margin: 0 0 12px;
  font-size: 2.1rem;
}

.hero p {
  margin: 0 0 20px;
  color: #dce7f7;
  max-width: 640px;
}

.hero .btn-primary {
  display: inline-block;
  background: #fff;
  color: var(--primary-dark);
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: 700;
  text-decoration: none;
}

.section-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 18px;
}

.section-title h2 {
  margin: 0;
  font-size: 1.4rem;
}

.section-title a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
  margin-bottom: 44px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.card h3 a {
  color: var(--text);
  text-decoration: none;
}

.card h3 a:hover {
  color: var(--primary);
}

.card .meta {
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 10px;
}

.card p {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0;
}

.doc-list {
  list-style: none;
  padding: 0;
  margin: 0 0 44px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.doc-list li {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.doc-list .doc-info strong {
  display: block;
}

.doc-list .doc-info span {
  font-size: 0.82rem;
  color: var(--muted);
}

.doc-list a.download-btn {
  background: var(--primary);
  color: #fff;
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  white-space: nowrap;
}

.empty-state {
  color: var(--muted);
  font-style: italic;
  padding: 20px 0;
}

article.news-detail h1 {
  margin-top: 0;
}

article.news-detail .meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

article.news-detail .body {
  font-size: 1.02rem;
}

.site-footer {
  background: #fff;
  border-top: 1px solid var(--border);
  padding: 20px 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.site-footer a {
  color: var(--primary);
}

/* --- Admin --- */
.admin-body {
  background: var(--bg);
}

.admin-shell {
  max-width: 960px;
  margin: 0 auto;
  padding: 30px 20px 60px;
}

.admin-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 10px;
}

.admin-topbar h1 {
  margin: 0;
  font-size: 1.4rem;
}

.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.tabs a {
  padding: 8px 16px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--border);
  font-size: 0.9rem;
  font-weight: 600;
}

.tabs a.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.panel {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
}

.form-row {
  margin-bottom: 16px;
}

.form-row label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 0.9rem;
}

.form-row input[type=text],
.form-row input[type=password],
.form-row input[type=file],
.form-row textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
}

.form-row textarea {
  min-height: 160px;
  resize: vertical;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  font-size: 0.92rem;
}

.btn:hover { background: var(--primary-dark); }

.btn-danger {
  background: #b91c1c;
}

.btn-danger:hover { background: #8f1616; }

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

table.admin-table {
  width: 100%;
  border-collapse: collapse;
}

table.admin-table th,
table.admin-table td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  vertical-align: middle;
}

table.admin-table .row-actions {
  display: flex;
  gap: 8px;
}

.alert {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 0.92rem;
}

.alert-success {
  background: #dcfce7;
  color: #166534;
}

.alert-error {
  background: #fee2e2;
  color: #991b1b;
}

.login-box {
  max-width: 380px;
  margin: 80px auto;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.login-box h1 {
  font-size: 1.3rem;
  margin-top: 0;
}