/* ============================================================
   Design System – Seminarverwaltung
   ============================================================ */
:root {
  --sv-primary:        #2563eb;
  --sv-primary-dark:   #1d4ed8;
  --sv-primary-light:  #eff6ff;
  --sv-success:        #16a34a;
  --sv-danger:         #dc2626;
  --sv-warning:        #d97706;
  --sv-body-bg:        #f1f5f9;
  --sv-card-bg:        #ffffff;
  --sv-navbar-bg:      #0f172a;
  --sv-navbar-hover:   #1e293b;
  --sv-border:         #e2e8f0;
  --sv-text:           #1e293b;
  --sv-text-muted:     #64748b;
  --sv-shadow-sm:      0 1px 3px rgba(0,0,0,.10), 0 1px 2px rgba(0,0,0,.06);
  --sv-shadow:         0 4px 6px -1px rgba(0,0,0,.10), 0 2px 4px -1px rgba(0,0,0,.06);
  --sv-radius:         0.5rem;
  --sv-radius-lg:      0.75rem;
}

/* ── Base ─────────────────────────────────────────────────── */
body {
  background-color: var(--sv-body-bg);
  color: var(--sv-text);
  font-size: .9375rem;
}

/* ── Navbar ───────────────────────────────────────────────── */
.navbar-sv {
  background-color: var(--sv-navbar-bg) !important;
  box-shadow: 0 1px 4px rgba(0,0,0,.35);
  padding: .65rem 1rem;
}
.navbar-sv .navbar-brand {
  color: #f8fafc;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: .01em;
}
.navbar-sv .navbar-brand:hover { color: #94a3b8; }

.navbar-sv .nav-link,
.navbar-sv .dropdown-toggle {
  color: #cbd5e1 !important;
  font-size: .875rem;
  padding: .45rem .75rem !important;
  border-radius: .375rem;
  transition: background .15s, color .15s;
}
.navbar-sv .nav-link:hover,
.navbar-sv .dropdown-toggle:hover {
  color: #f8fafc !important;
  background-color: var(--sv-navbar-hover);
}
.navbar-sv .dropdown-menu {
  background-color: #1e293b;
  border: 1px solid #334155;
  border-radius: var(--sv-radius);
  box-shadow: var(--sv-shadow);
  min-width: 14rem;
  padding: .4rem;
}
.navbar-sv .dropdown-item {
  color: #cbd5e1;
  border-radius: .375rem;
  font-size: .875rem;
  padding: .45rem .75rem;
}
.navbar-sv .dropdown-item:hover {
  background-color: #334155;
  color: #f8fafc;
}
.navbar-sv .dropdown-divider {
  border-color: #334155;
  margin: .3rem 0;
}
.navbar-sv .form-control {
  background-color: #1e293b;
  border-color: #334155;
  color: #e2e8f0;
  font-size: .875rem;
}
.navbar-sv .form-control::placeholder { color: #64748b; }
.navbar-sv .form-control:focus {
  background-color: #1e293b;
  border-color: var(--sv-primary);
  color: #f8fafc;
  box-shadow: 0 0 0 .2rem rgba(37,99,235,.35);
}
.navbar-toggler { border-color: #334155; }
.navbar-toggler-icon { filter: invert(1) brightness(.6); }

/* ── Page layout ──────────────────────────────────────────── */
main.page-content {
  padding: 1.75rem 0 3rem;
}

/* ── Page header ──────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .75rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--sv-border);
}
.page-header h1,
.page-header h2,
.page-header h3 {
  margin: 0;
  font-weight: 700;
  color: var(--sv-text);
  font-size: 1.4rem;
  letter-spacing: -.01em;
}
.page-header-actions {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  align-items: center;
}

/* ── Cards ────────────────────────────────────────────────── */
.card {
  border: 1px solid var(--sv-border);
  border-radius: var(--sv-radius-lg) !important;
  box-shadow: var(--sv-shadow-sm);
  background: var(--sv-card-bg);
}
.card-header {
  background: #f8fafc !important;
  border-bottom: 1px solid var(--sv-border);
  font-weight: 600;
  padding: .85rem 1.25rem;
  font-size: .9375rem;
  border-radius: var(--sv-radius-lg) var(--sv-radius-lg) 0 0 !important;
}
.card-body { padding: 1.25rem; }

/* ── Table wrapper card ───────────────────────────────────── */
.table-card {
  background: var(--sv-card-bg);
  border: 1px solid var(--sv-border);
  border-radius: var(--sv-radius-lg);
  box-shadow: var(--sv-shadow-sm);
  overflow: hidden;
  margin-bottom: 1.25rem;
}
.table-card .table { margin-bottom: 0; }
.table-card .table thead th {
  background-color: #f8fafc;
  border-bottom: 2px solid var(--sv-border);
  color: var(--sv-text-muted);
  font-size: .78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: .75rem 1rem;
  white-space: nowrap;
}
.table-card .table tbody td {
  padding: .75rem 1rem;
  vertical-align: middle;
  border-color: #f1f5f9;
  font-size: .9rem;
}
.table-card .table tbody tr:hover { background-color: #f8fafc; }
.table-card .table-footer {
  background-color: #f8fafc;
  border-top: 1px solid var(--sv-border);
  padding: .85rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ── Detail table (show pages) ────────────────────────────── */
.detail-table th {
  width: 35%;
  background-color: #f8fafc;
  color: var(--sv-text-muted);
  font-weight: 600;
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  padding: .7rem 1rem;
  border-color: var(--sv-border);
  white-space: nowrap;
  vertical-align: middle;
}
.detail-table td {
  padding: .7rem 1rem;
  border-color: var(--sv-border);
  font-size: .9375rem;
  vertical-align: middle;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  border-radius: .4rem;
  font-size: .875rem;
  font-weight: 500;
  padding: .425rem .9rem;
  transition: background .15s, box-shadow .15s, transform .08s;
}
.btn:active { transform: scale(.97); }
.btn-primary {
  background-color: var(--sv-primary);
  border-color: var(--sv-primary);
}
.btn-primary:hover {
  background-color: var(--sv-primary-dark);
  border-color: var(--sv-primary-dark);
}
.btn-icon { padding: .375rem .6rem; font-size: .85rem; }

/* ── Status badges ────────────────────────────────────────── */
.badge-status {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  font-size: .78rem;
  font-weight: 600;
  padding: .28rem .65rem;
  border-radius: 99px;
  line-height: 1.2;
}
.badge-paid   { background-color: #dcfce7; color: #15803d; }
.badge-unpaid { background-color: #fef9c3; color: #854d0e; }
.badge-sent   { background-color: #dcfce7; color: #15803d; }
.badge-unsent { background-color: #f1f5f9; color: #64748b; }

/* ── Flash messages ───────────────────────────────────────── */
.flash-success {
  background-color: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #15803d;
  border-radius: var(--sv-radius);
  padding: .85rem 1.1rem;
  margin: 0 0 1rem;
  font-size: .9rem;
  display: flex;
  align-items: center;
  gap: .6rem;
}

/* ── Forms ────────────────────────────────────────────────── */
.form-card {
  background: var(--sv-card-bg);
  border: 1px solid var(--sv-border);
  border-radius: var(--sv-radius-lg);
  box-shadow: var(--sv-shadow-sm);
  padding: 1.75rem;
  margin-bottom: 1.5rem;
}
.form-label {
  font-size: .85rem;
  font-weight: 600;
  color: var(--sv-text);
  margin-bottom: .3rem;
}
.form-control, .form-select {
  border-color: var(--sv-border);
  border-radius: .4rem;
  font-size: .9rem;
  transition: border-color .15s, box-shadow .15s;
}
.form-control:focus, .form-select:focus {
  border-color: var(--sv-primary);
  box-shadow: 0 0 0 .2rem rgba(37,99,235,.18);
}

/* ── Section title ────────────────────────────────────────── */
.section-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--sv-text);
  margin: 1.5rem 0 .75rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.section-title i { color: var(--sv-primary); }
.section-title::after {
  content: "";
  flex: 1;
  border-top: 1px solid var(--sv-border);
  margin-left: .5rem;
}

/* ── Print section ────────────────────────────────────────── */
.print-section {
  background: var(--sv-primary-light);
  border: 1px solid #bfdbfe;
  border-radius: var(--sv-radius-lg);
  padding: 1.25rem 1.5rem;
  margin: 1.25rem 0;
}
.print-section .print-section-title {
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--sv-primary);
  margin-bottom: .85rem;
  display: flex;
  align-items: center;
  gap: .4rem;
}

/* ── Notification banner ──────────────────────────────────── */
.notification-banner {
  border-radius: var(--sv-radius);
  padding: .65rem 1rem;
  font-size: .875rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.notification-banner.warning {
  background-color: #fffbeb;
  border: 1px solid #fde68a;
  color: #92400e;
}
.notification-banner.success {
  background-color: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #15803d;
}
.notification-banner.danger {
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
}

/* ── Pagination ───────────────────────────────────────────── */
.pagination .page-link {
  color: var(--sv-primary);
  border-color: var(--sv-border);
  border-radius: .375rem !important;
  margin: 0 .15rem;
  font-size: .875rem;
  padding: .375rem .7rem;
}
.pagination .page-item.active .page-link {
  background-color: var(--sv-primary);
  border-color: var(--sv-primary);
}
.pagination .page-link:hover {
  background-color: var(--sv-primary-light);
  border-color: var(--sv-primary);
  color: var(--sv-primary-dark);
}

/* ── Login page ───────────────────────────────────────────── */
.login-wrapper {
  min-height: calc(100vh - 56px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}
.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--sv-card-bg);
  border: 1px solid var(--sv-border);
  border-radius: var(--sv-radius-lg);
  box-shadow: var(--sv-shadow);
  padding: 2.5rem 2rem;
}
.login-logo {
  width: 3rem;
  height: 3rem;
  background-color: var(--sv-primary);
  border-radius: .75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.4rem;
  margin: 0 auto 1.25rem;
}

/* ── KNP filter / sort ────────────────────────────────────── */
.knp-filter-row {
  display: flex;
  gap: .5rem;
  align-items: center;
  margin-bottom: 1rem;
}
.knp-filter-row .form-control { max-width: 220px; }
a.sorted, th.sorted a { color: var(--sv-primary); font-weight: 700; }