:root {
  --primary: #0f5fa8;
  --secondary: #3fa9f5;
  --accent: #18b7b0;
  --gold: #f5b642;
  --bg: #f7fafd;
  --surface: #ffffff;
  --surface-2: #eef6fd;
  --text: #16324f;
  --muted: #64748b;
  --border: #d7e4f1;
  --danger: #d64545;
  --warning: #f0a327;
  --success: #1f9d63;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 12px 32px rgba(15, 95, 168, 0.08);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { font-family: 'Sarabun', sans-serif; background: var(--bg); color: var(--text); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.narrow { width: min(860px, 100%); }
.site-main { min-height: 60vh; }

.top-strip { background: #0d3258; color: #fff; font-size: .95rem; }
.top-strip-inner { display: flex; justify-content: space-between; gap: 16px; align-items: center; padding: 10px 0; }
.top-strip-links { display: flex; gap: 16px; align-items: center; }

.public-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); }
.nav-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 14px 0; }
.brand-link { display: flex; gap: 14px; align-items: center; }
.brand-mark { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 14px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; font-weight: 800; box-shadow: var(--shadow); }
.brand-mark.large { width: 64px; height: 64px; border-radius: 18px; font-size: 1.3rem; }
.brand-link strong { display: block; font-size: 1.1rem; }
.brand-link small, .muted-text { color: var(--muted); }
.public-nav, .portal-nav { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.public-nav a, .portal-nav a { font-weight: 600; color: var(--text); }
.public-nav a.is-active { color: var(--primary); }

.hero-section { padding: 72px 0; background: radial-gradient(circle at top left, #e6f4ff 0%, #f7fafd 50%, #ecfffc 100%); }
.hero-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 28px; align-items: center; }
.hero-content h1 { font-size: clamp(2rem, 3.6vw, 3.5rem); line-height: 1.14; margin: 0 0 16px; }
.hero-content p { color: var(--muted); font-size: 1.05rem; line-height: 1.7; margin: 0 0 24px; }
.hero-badge, .chip { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px; background: #e4f2fc; color: var(--primary); font-weight: 700; font-size: .9rem; }
.hero-actions, .flex-gap { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.hero-panel .panel-card { background: var(--surface); padding: 24px; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); }
.quick-access-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 16px; }
.quick-card { display: block; padding: 18px; border-radius: var(--radius-sm); background: var(--surface-2); border: 1px solid var(--border); font-weight: 700; }

.section-block { padding: 54px 0; }
.tinted-block { background: linear-gradient(180deg, rgba(63,169,245,.07), rgba(24,183,176,.05)); }
.section-heading { margin-bottom: 22px; }
.section-heading h2 { margin: 0 0 8px; font-size: 1.8rem; }
.section-heading p { margin: 0; color: var(--muted); }
.with-action { display: flex; justify-content: space-between; gap: 16px; align-items: end; }

.page-banner { padding: 56px 0; background: linear-gradient(135deg, #edf6fd, #f7fafd); border-bottom: 1px solid var(--border); }
.page-banner h1 { margin: 0 0 8px; font-size: clamp(2rem, 3vw, 3rem); }
.page-banner p { margin: 0; color: var(--muted); max-width: 800px; }

.news-grid, .announcement-grid, .people-grid, .stats-grid, .footer-grid, .contact-grid, .two-col-grid { display: grid; gap: 20px; }
.news-grid { grid-template-columns: repeat(3, 1fr); }
.announcement-grid { grid-template-columns: repeat(3, 1fr); }
.people-grid { grid-template-columns: repeat(4, 1fr); }
.stats-grid { grid-template-columns: repeat(4, 1fr); }
.footer-grid, .contact-grid, .two-col-grid { grid-template-columns: repeat(2, 1fr); }

.news-card, .person-card, .info-card, .list-card, .stat-card, .panel-card, .alert-card, .login-card {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.news-card-body, .person-card, .info-card, .list-card, .stat-card, .panel-card { padding: 22px; }
.news-card h3, .person-card h3, .panel-card h2, .list-card h3 { margin-top: 12px; margin-bottom: 8px; }
.news-card p, .person-card p, .list-card p, .info-card p { color: var(--muted); line-height: 1.65; }
.avatar-circle { width: 58px; height: 58px; border-radius: 50%; display: grid; place-items: center; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; font-size: 1.4rem; font-weight: 800; margin-bottom: 14px; }
.stat-card { text-align: center; padding: 22px; }
.stat-card strong { display: block; font-size: 2rem; margin-bottom: 6px; }
.stat-card span { color: var(--muted); }

.event-list { display: grid; gap: 16px; }
.event-row {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}
.event-date { background: var(--surface-2); border-radius: 14px; display: grid; place-items: center; align-content: center; padding: 12px; text-align: center; }
.event-date strong { font-size: 1.9rem; line-height: 1; }
.event-date span { color: var(--muted); }
.event-body h3 { margin: 0 0 8px; }
.event-body p { margin: 0 0 8px; color: var(--muted); }

.card-list, .stack-list { display: grid; gap: 16px; }
.list-card { display: flex; justify-content: space-between; gap: 16px; align-items: start; }
.mini-row { padding: 12px 0; border-bottom: 1px dashed var(--border); }
.mini-row:last-child { border-bottom: none; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 999px; padding: 12px 18px; font-weight: 700; cursor: pointer;
  border: 1px solid transparent; font-family: inherit;
}
.btn-sm { padding: 8px 14px; font-size: .92rem; }
.btn-block { width: 100%; }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; }
.btn-outline { border-color: var(--primary); color: var(--primary); background: transparent; }
.btn-soft { background: #eaf4fd; color: var(--primary); }
.btn-danger { background: #fdeaea; color: var(--danger); border-color: #f8c9c9; }

.auth-body { background: linear-gradient(135deg, #edf6fd, #f7fafd, #effffc); }
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 28px; }
.login-card { width: min(100%, 520px); padding: 32px; }
.brand-lockup { display: flex; gap: 18px; align-items: center; margin-bottom: 18px; }
.demo-credentials { margin-top: 18px; color: var(--muted); }
.demo-credentials ul { margin: 8px 0 0 18px; padding: 0; }

.form-group { display: grid; gap: 8px; margin-bottom: 16px; }
.form-group label { font-weight: 700; }
.form-group input, .form-group textarea, .form-group select, .search-form input {
  width: 100%; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--border);
  background: #fff; font: inherit; color: var(--text);
}
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.checkbox-wrap { display: flex; gap: 10px; align-items: center; margin-bottom: 16px; font-weight: 600; }
.stack-form { display: grid; gap: 8px; }
.search-form { display: grid; grid-template-columns: 1fr auto; gap: 12px; margin-bottom: 24px; }

.alert { padding: 14px 16px; border-radius: 14px; margin-bottom: 18px; border: 1px solid transparent; }
.alert-info { background: #eaf4fd; color: var(--primary); border-color: #d4e9fb; }
.alert-success { background: #e8f8f0; color: var(--success); border-color: #ccefdc; }
.alert-warning { background: #fff5e8; color: #ac6b06; border-color: #f8dfb2; }
.alert-danger { background: #fdeaea; color: var(--danger); border-color: #f8c9c9; }

.admin-shell { min-height: 100vh; display: grid; grid-template-columns: 280px 1fr; }
.admin-sidebar { background: linear-gradient(180deg, #0d3258, #143f6f); color: #fff; padding: 24px; }
.brand-block { margin-bottom: 24px; display: grid; gap: 4px; }
.admin-nav { display: grid; gap: 8px; }
.admin-nav a { padding: 12px 14px; border-radius: 12px; background: rgba(255,255,255,.08); color: #fff; font-weight: 600; }
.admin-content { padding: 28px; }
.top-actions, .page-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 20px; }
.page-header { margin-bottom: 20px; }
.page-header h1 { margin: 0 0 8px; }
.page-header p { margin: 0; color: var(--muted); }
.table-wrap { overflow-x: auto; background: var(--surface); border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); }
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th, .admin-table td { padding: 14px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.admin-table th { background: #f1f7fc; }
.actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.admin-form { background: var(--surface); border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); padding: 24px; }

.portal-header { background: #0d3258; color: #fff; }
.portal-header-inner { display: flex; justify-content: space-between; gap: 16px; align-items: center; padding: 16px 0; }

.public-footer { margin-top: 40px; padding: 40px 0; background: #0d3258; color: #fff; }
.public-footer h3, .public-footer h4 { margin-top: 0; }
.footer-links { margin: 0; padding-left: 18px; display: grid; gap: 8px; }

.filter-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 20px; }
.lead-text { font-size: 1.15rem; color: var(--primary); margin-bottom: 18px; }
.rich-content { line-height: 1.8; color: var(--text); }
.info-card h3 { margin-top: 0; }

@media (max-width: 1080px) {
  .hero-grid, .news-grid, .announcement-grid, .people-grid, .stats-grid, .footer-grid, .contact-grid, .two-col-grid {
    grid-template-columns: 1fr 1fr;
  }
  .admin-shell { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav-row, .top-strip-inner, .portal-header-inner, .page-toolbar, .with-action, .list-card {
    flex-direction: column; align-items: flex-start;
  }
  .public-nav, .portal-nav { gap: 12px; }
  .hero-grid, .news-grid, .announcement-grid, .people-grid, .stats-grid, .footer-grid, .contact-grid, .two-col-grid, .form-grid {
    grid-template-columns: 1fr;
  }
  .event-row { grid-template-columns: 1fr; }
  .search-form { grid-template-columns: 1fr; }
}


.field-error { color: var(--danger); font-size: 0.92rem; margin-top: 6px; }
.wrap-anywhere { overflow-wrap: anywhere; }
.auth-links-row { margin-top: 16px; display: flex; justify-content: space-between; gap: 16px; }
.card-surface { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.info-grid { display: grid; gap: 16px; margin: 20px 0; }
.info-grid.two-col { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.info-grid.compact { margin-top: 0; }
.info-card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 16px; display: grid; gap: 6px; }
.note-block { margin-top: 20px; padding: 16px; border-radius: 14px; background: #eef7ff; border: 1px solid #cfe5f8; color: var(--text); }
.check-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-bottom: 20px; }
.checkbox-card { display: flex; gap: 12px; align-items: flex-start; padding: 14px; border: 1px solid var(--border); background: var(--surface); border-radius: 14px; }
.checkbox-card span { display: grid; }
.checkbox-card small { color: var(--muted); }
.permission-table td, .permission-table th { text-align: center; }
.permission-table td:first-child, .permission-table th:first-child { text-align: left; }
.module-row td { background: #f2f8fd; font-weight: 700; }
@media (max-width: 991px) { .check-grid, .info-grid.two-col { grid-template-columns: 1fr; } }