:root {
  --admin-navy: #0d2d4d;
  --admin-gold: #d2a756;
  --admin-text: #21324b;
  --admin-muted: #687789;
  --admin-line: #e5ebf2;
  --admin-bg: #f5f7fb;
}

* { box-sizing: border-box; }
body.admin-body {
  margin: 0;
  min-height: 100vh;
  background: var(--admin-bg);
  color: var(--admin-text);
  font-family: Arial, Helvetica, sans-serif;
}
a { color: inherit; }

.admin-login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: linear-gradient(135deg, #f7f9fc, #e9eef6);
}
.admin-login-card {
  width: min(100%, 420px);
  padding: 30px;
  border-radius: 22px;
  background: #fff;
  border: 1px solid var(--admin-line);
  box-shadow: 0 24px 70px rgba(22, 48, 82, .14);
}
.admin-login-brand { text-align: center; }
.admin-login-brand img { width: 62px; height: 62px; object-fit: contain; }
.admin-login-brand span {
  display: block;
  margin-top: 12px;
  color: var(--admin-gold);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.admin-login-brand h1 { margin: 8px 0 6px; font-size: 28px; color: var(--admin-text); }
.admin-login-brand p { margin: 0 0 22px; color: var(--admin-muted); font-size: 13px; line-height: 1.55; }
.admin-login-form { display: grid; gap: 14px; }
.admin-login-form label,
.cec-admin-form label { display: grid; gap: 6px; }
.admin-login-form span,
.cec-admin-form span {
  color: #6f7e91;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.admin-login-form input,
.cec-admin-form input,
.cec-admin-form select,
.cec-admin-form textarea,
.cec-admin-inline-form input,
.cec-admin-inline-form select,
.cec-admin-inline-form textarea {
  width: 100%;
  border: 1px solid #dbe3ee;
  border-radius: 11px;
  background: #fbfcfe;
  color: var(--admin-text);
  font-size: 13px;
  outline: 0;
  padding: 11px 12px;
  transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
}
.admin-login-form input:focus,
.cec-admin-form input:focus,
.cec-admin-form select:focus,
.cec-admin-form textarea:focus,
.admin-searchbar input:focus,
.admin-searchbar select:focus {
  border-color: rgba(13, 45, 77, .42);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(13, 45, 77, .08);
}
.admin-login-form button,
.cec-action-button,
.admin-primary-link,
.admin-small-button,
.cec-admin-actions button,
.cec-admin-row-actions button,
.cec-admin-delete,
.cec-admin-inline-form button {
  border: 0;
  border-radius: 11px;
  background: var(--admin-navy);
  color: #fff !important;
  font-size: 13px;
  font-weight: 800;
  padding: 11px 14px;
  text-decoration: none !important;
  cursor: pointer;
}
.admin-alert,
.admin-toast {
  margin-bottom: 14px;
  padding: 11px 13px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 700;
}
.admin-alert { background: #fff1ee; color: #9b3424; }
.admin-toast { background: #effaf3; color: #1f593d; }

.admin-app {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 282px minmax(0, 1fr);
}
.admin-sidebar {
  background: #fff;
  border-right: 1px solid var(--admin-line);
  padding: 22px 18px;
  max-height: 100vh;
  overflow-y: auto;
}
.admin-sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--admin-line);
}
.admin-sidebar-brand img { width: 44px; height: 44px; object-fit: contain; }
.admin-sidebar-brand strong { display: block; color: var(--admin-text); font-size: 17px; line-height: 1.1; }
.admin-sidebar-brand span { color: var(--admin-muted); font-size: 12px; }
.admin-nav { display: grid; gap: 5px; margin-top: 18px; }
.admin-nav-group {
  border: 1px solid #edf1f6;
  border-radius: 14px;
  background: #fbfcfe;
  overflow: hidden;
}
.admin-nav-group summary {
  list-style: none;
  cursor: pointer;
  padding: 11px 12px;
  color: #6a778a;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.admin-nav-group summary::-webkit-details-marker { display: none; }
.admin-nav-group summary::after {
  content: "+";
  float: right;
  color: var(--admin-gold);
}
.admin-nav-group[open] summary::after { content: "-"; }
.admin-nav-group div {
  display: grid;
  gap: 4px;
  padding: 0 7px 8px;
}
.admin-nav a {
  display: flex;
  align-items: center;
  min-height: 34px;
  padding: 8px 10px;
  border-radius: 12px;
  color: #40516a;
  text-decoration: none;
  font-size: 12.5px;
  font-weight: 800;
}
.admin-nav a.active,
.admin-nav a:hover {
  background: #eef4fb;
  color: var(--admin-navy);
}
.admin-main { min-width: 0; }
.admin-topbar {
  position: relative;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 24px;
  background: #fff;
  border-bottom: 1px solid var(--admin-line);
}
.admin-topbar > div:first-child {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 42px;
}
.admin-topbar span { display: block; color: var(--admin-muted); font-size: 11px; text-transform: uppercase; letter-spacing: .1em; font-weight: 800; }
.admin-topbar strong { display: block; margin-top: 2px; font-size: 20px; line-height: 1.15; }
.admin-topbar nav {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  min-height: 42px;
}
.admin-topbar nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 6px 14px;
  border-radius: 999px;
  background: #f2f5f9;
  color: #334760;
  text-decoration: none;
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
  line-height: 1;
}
.admin-body .admin-user {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 6px 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, #195386, #2d7db3);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  line-height: 1.2;
  white-space: nowrap;
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
  box-shadow: 0 4px 12px rgba(13, 45, 77, .18);
}
.admin-content { display: grid; gap: 18px; padding: 24px; }
.admin-head,
.cec-admin-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.admin-head span,
.cec-section-kicker { color: var(--admin-gold); font-size: 11px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.admin-head h2,
.cec-admin-head h2 { margin: 4px 0 0; font-size: 28px; color: var(--admin-text); }
.admin-grid-two,
.cec-admin-grid-two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.admin-muted { color: var(--admin-muted); font-size: 13px; line-height: 1.55; }
.admin-table-wrap,
.cec-admin-table-wrap { overflow-x: auto; }
.cec-admin-inline-form { display: grid; gap: 8px; min-width: 280px; margin: 10px 0; padding: 12px; border-radius: 13px; background: #f4f7fb; }
.cec-admin-actions { display: flex; gap: 7px; flex-wrap: wrap; }
.danger,
.cec-admin-delete { background: #8d3329 !important; }
.cec-admin-row-actions summary { cursor: pointer; color: var(--admin-navy); font-size: 12px; font-weight: 900; }
.admin-check { display: flex !important; grid-template-columns: auto 1fr; align-items: center; gap: 8px; color: var(--admin-muted); font-size: 13px; }
.admin-check input { width: auto; }
.admin-list-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px;
}
.admin-list-head h2 { margin: 4px 0 0; font-size: 27px; color: var(--admin-text); }
.admin-searchbar {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) 150px auto auto;
  gap: 12px;
  align-items: end;
  padding: 16px;
  border: 1px solid #dfe7f0;
  border-radius: 20px;
  background: linear-gradient(180deg, #ffffff 0%, #f9fbfe 100%);
  box-shadow: 0 16px 36px rgba(22, 48, 82, .08);
}
.admin-searchbar label { display: grid; gap: 6px; }
.admin-search-field { position: relative; }
.admin-search-field i {
  position: absolute;
  left: 14px;
  bottom: 12px;
  width: 14px;
  height: 14px;
  border: 2px solid #8090a4;
  border-radius: 50%;
  pointer-events: none;
}
.admin-search-field i::after {
  content: "";
  position: absolute;
  right: -6px;
  bottom: -4px;
  width: 7px;
  height: 2px;
  border-radius: 2px;
  background: #8090a4;
  transform: rotate(45deg);
}
.admin-searchbar span {
  color: #6f7e91;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.admin-searchbar input,
.admin-searchbar select {
  width: 100%;
  border: 1px solid #d7e1ed;
  border-radius: 13px;
  background: #fff;
  color: var(--admin-text);
  font-size: 13px;
  outline: 0;
  min-height: 44px;
  padding: 11px 12px;
}
.admin-search-field input { padding-left: 40px; }
.admin-searchbar button {
  min-height: 44px;
  border: 0;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--admin-navy), #17466f);
  box-shadow: 0 10px 22px rgba(13, 45, 77, .18);
  color: #fff;
  font-size: 13px;
  font-weight: 900;
  padding: 11px 18px;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease;
}
.admin-searchbar button:hover,
.admin-primary-link:hover,
.admin-small-button:hover { transform: translateY(-1px); box-shadow: 0 14px 26px rgba(13, 45, 77, .2); }
.admin-clear-search,
.admin-secondary-link {
  border: 1px solid #dbe3ee;
  border-radius: 11px;
  background: #fff;
  color: var(--admin-navy) !important;
  font-size: 13px;
  font-weight: 900;
  padding: 11px 14px;
  text-decoration: none !important;
  cursor: pointer;
}
.admin-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 14px;
  padding: 13px 14px;
  border: 1px solid #e3eaf3;
  border-radius: 16px;
  background: #f8fafc;
  color: var(--admin-muted);
  font-size: 12.5px;
  font-weight: 800;
}
.admin-pagination div { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.admin-pagination a,
.admin-pagination strong {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 7px 11px;
  border: 1px solid #dde6f0;
  border-radius: 11px;
  background: #fff;
  color: #334760;
  text-decoration: none;
  transition: background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease;
}
.admin-pagination a:hover { border-color: rgba(13, 45, 77, .24); color: var(--admin-navy); transform: translateY(-1px); }
.admin-pagination a.disabled { opacity: .45; pointer-events: none; }
.admin-pagination a.active { background: var(--admin-navy); border-color: var(--admin-navy); color: #fff; }
.admin-inline-action { display: inline-flex; margin-left: 6px; }
.cec-admin-table td small {
  display: block;
  max-width: 520px;
  margin-top: 4px;
  color: var(--admin-muted);
  font-size: 12px;
  line-height: 1.45;
}.cec-form-card .cec-admin-form-grid { gap: 15px; }
.cec-form-card textarea { min-height: 110px; resize: vertical; }

.admin-publications-card {
  padding: 0;
  overflow: hidden;
}
.admin-publications-card .cec-admin-table-wrap {
  padding: 8px;
}
.admin-publications-table {
  border-collapse: separate;
  border-spacing: 0 8px;
}
.admin-publications-table thead th {
  border-bottom: 0;
  padding: 10px 12px;
}
.admin-publications-table tbody tr {
  background: #fff;
  box-shadow: 0 8px 22px rgba(22, 48, 82, .06);
}
.admin-publications-table tbody td {
  border-top: 1px solid #e7edf5;
  border-bottom: 1px solid #e7edf5;
  padding: 13px 12px;
  vertical-align: middle;
}
.admin-publications-table tbody td:first-child {
  border-left: 1px solid #e7edf5;
  border-radius: 14px 0 0 14px;
}
.admin-publications-table tbody td:last-child {
  border-right: 1px solid #e7edf5;
  border-radius: 0 14px 14px 0;
}
.admin-publication-thumb {
  width: 54px;
  height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  object-fit: cover;
  background: #eef4fa;
  color: var(--admin-navy);
  font-size: 12px;
  font-weight: 900;
}
.admin-publication-copy strong {
  display: block;
  max-width: 520px;
  color: #17283d;
  font-size: 14px;
  line-height: 1.35;
}
.admin-publication-copy small {
  max-width: 560px;
}
.admin-table-actions {
  min-width: 170px;
  white-space: nowrap;
}
.admin-grade-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.admin-grade-card {
  display: grid;
  gap: 8px;
  min-height: 145px;
  padding: 20px;
  border: 1px solid var(--admin-line);
  border-radius: 22px;
  background: linear-gradient(135deg, #fff, #f7fafc);
  color: var(--admin-text);
  text-decoration: none;
  box-shadow: 0 18px 42px rgba(22, 48, 82, .08);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.admin-grade-card:hover {
  border-color: rgba(13, 45, 77, .18);
  transform: translateY(-3px);
  box-shadow: 0 24px 50px rgba(22, 48, 82, .13);
}
.admin-grade-card span {
  color: var(--admin-navy);
  font-size: 15px;
  font-weight: 900;
}
.admin-grade-card strong {
  color: var(--admin-navy);
  font-size: 40px;
  line-height: 1;
}
.admin-grade-card small {
  color: var(--admin-muted);
  font-size: 12px;
  font-weight: 800;
}
.admin-student-summary,
.student-history-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}
.student-history-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.admin-student-summary article {
  padding: 18px;
  border: 1px solid var(--admin-line);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 14px 34px rgba(22,48,82,.07);
}
.admin-student-summary span {
  display: block;
  color: var(--admin-muted);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.admin-student-summary strong {
  display: block;
  margin-top: 7px;
  color: var(--admin-navy);
  font-size: 15px;
}
.loan-pendiente { background: #fff1ee; color: #a53a2a; border-color: #ffd4ca; }
.loan-proximo { background: #fff7df; color: #8a650e; border-color: #f7dea0; }
.loan-activo { background: #edf7ff; color: #14527c; border-color: #cfe8fb; }
.loan-sin_prestamos { background: #edf8f1; color: #26724a; border-color: #cfead8; }
.cec-admin-status.neutral {
  background: #f1f5f9;
  color: #40516a;
}
.cec-admin-status.status-activo {
  background: #e8f7ef;
  color: #1e6840;
}
.cec-admin-status.status-inactivo {
  background: #f3f4f6;
  color: #6b7280;
}
.admin-forgot-link {
  display: inline-flex;
  justify-content: center;
  color: var(--admin-navy);
  font-size: 12px;
  font-weight: 800;
  text-decoration: none;
}

/* Grade student table - premium redesign */
.grade-student-card {
  overflow: hidden;
}
.grade-student-table {
  border-collapse: separate;
  border-spacing: 0;
  width: 100%;
}
.grade-student-table thead th {
  padding: 16px 14px;
  border-bottom: 2px solid #d4e0ec;
  color: #4d6178;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .09em;
  text-transform: uppercase;
  background: #f8fafd;
  white-space: nowrap;
}
.grade-student-table thead th:first-child {
  border-radius: 14px 0 0 0;
  width: 52px;
}
.grade-student-table thead th:last-child {
  border-radius: 0 14px 0 0;
}
.grade-student-table tbody tr {
  transition: background .15s ease, box-shadow .15s ease;
}
.grade-student-table tbody tr:hover {
  background: #f5f9ff;
}
.grade-student-table tbody td {
  padding: 14px 14px;
  border-bottom: 1px solid #e8eef6;
  font-size: 13px;
  vertical-align: middle;
  color: #1e3249;
}
.grade-student-table tbody tr:last-child td {
  border-bottom: 0;
}
.grade-avatar-cell {
  width: 52px;
  padding-right: 0 !important;
}
.grade-avatar-cell .admin-student-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  border: 2px solid #fff;
  box-shadow: 0 4px 12px rgba(22, 48, 82, .12);
}
.grade-name-cell strong {
  display: block;
  color: #0d2d4d;
  font-size: 14px;
  font-weight: 900;
  line-height: 1.3;
}
.grade-id-cell .grade-badge-id {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: 999px;
  background: #eef4fa;
  color: #3f5772;
  font-size: 12px;
  font-weight: 800;
  font-family: monospace;
  letter-spacing: .03em;
}
.grade-email-cell {
  color: #4d6178;
  font-size: 13px;
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.grade-actions-cell {
  min-width: 200px;
  white-space: nowrap;
  text-align: right;
}
.grade-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-height: 34px;
  padding: 6px 16px;
  border: 0;
  border-radius: 10px;
  font-size: 12.5px;
  font-weight: 800;
  cursor: pointer;
  text-decoration: none !important;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
  line-height: 1;
}
.grade-btn-outline {
  background: linear-gradient(135deg, #0d2d4d, #1a4f76);
  color: #fff !important;
  box-shadow: 0 6px 14px rgba(13, 45, 77, .16);
}
.grade-btn-outline:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(13, 45, 77, .22);
}
.grade-btn-ghost {
  background: #eef4fa;
  color: #0d2d4d !important;
  border: 1px solid #d5e0ec;
}
.grade-btn-ghost:hover {
  background: #e2eaf4;
  border-color: rgba(13, 45, 77, .25);
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(22, 48, 82, .08);
}

/* Assign table - balanced columns */
.assign-avatar-cell {
  width: 40px;
  padding-right: 0 !important;
}
.assign-avatar-cell .admin-student-avatar {
  width: 32px;
  height: 32px;
}
.assign-name-cell {
  min-width: 180px;
}
.assign-name-cell strong {
  display: block;
  color: #0d2d4d;
  font-size: 14px;
  font-weight: 900;
}
.assign-id-cell {
  width: 110px;
}
.assign-email-cell {
  width: auto;
  color: #4d6178;
  font-size: 13px;
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.assign-action-cell {
  width: 1%;
  white-space: nowrap;
  text-align: right;
}
.assign-form {
  display: inline-flex;
  gap: 6px;
  align-items: center;
}
.assign-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-height: 36px;
  padding: 7px 18px;
  border: 0;
  border-radius: 10px;
  background: linear-gradient(135deg, #0d2d4d, #1a5780);
  color: #fff !important;
  font-size: 12.5px;
  font-weight: 900;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 0 6px 14px rgba(13, 45, 77, .16);
  transition: transform .15s ease, box-shadow .15s ease;
  line-height: 1;
}
.assign-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(13, 45, 77, .24);
}
.assign-btn:active {
  transform: translateY(0);
  box-shadow: 0 4px 10px rgba(13, 45, 77, .12);
}

/* Responsive */
@media (max-width: 900px) {
  .grade-email-cell {
    max-width: 120px;
  }
  .grade-student-table .admin-table-actions {
    min-width: 140px;
  }
  .grade-student-table tbody td {
    padding: 12px 10px;
  }
}

@media (max-width: 1120px) {
  .admin-app { grid-template-columns: 1fr; }
  .admin-sidebar { border-right: 0; border-bottom: 1px solid var(--admin-line); }
  .admin-nav { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .admin-stats, .cec-admin-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .admin-grid-two, .cec-admin-grid-two { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .admin-login-card { padding: 24px; }
  .admin-topbar { align-items: flex-start; flex-direction: column; }
  .admin-topbar nav { margin-left: 0; flex-wrap: wrap; }
  .admin-content { padding: 16px; }
  .admin-nav { grid-template-columns: 1fr; }
  .admin-stats, .cec-admin-stats { grid-template-columns: 1fr; }
  .admin-list-head,
  .admin-pagination { align-items: stretch; flex-direction: column; }
  .admin-searchbar { grid-template-columns: 1fr; }
  .cec-admin-form-grid,
  .cec-admin-form-grid.compact { grid-template-columns: 1fr; }
}

/* ============================================
   PREMIUM ADMIN UPGRADES
   ============================================ */

/* Premium table styling */
.cec-admin-card {
  background: #fff;
  border: 1px solid #e2eaf3;
  border-radius: 20px;
  box-shadow: 0 14px 38px rgba(22, 48, 82, .07);
  transition: box-shadow .2s ease;
}
.cec-admin-card:hover {
  box-shadow: 0 18px 44px rgba(22, 48, 82, .1);
}

.cec-admin-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}
.cec-admin-table thead th {
  padding: 14px 12px;
  border-bottom: 2px solid #d4e0ec;
  color: #4d6178;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .09em;
  text-transform: uppercase;
  background: #f8fafd;
}
.cec-admin-table thead th:first-child {
  border-radius: 14px 0 0 0;
}
.cec-admin-table thead th:last-child {
  border-radius: 0 14px 0 0;
}
.cec-admin-table tbody tr {
  transition: background .15s ease, box-shadow .15s ease;
}
.cec-admin-table tbody tr:hover {
  background: #f5f9ff;
}
.cec-admin-table tbody td {
  padding: 13px 12px;
  border-bottom: 1px solid #e8eef6;
  font-size: 13px;
  vertical-align: middle;
  color: #1e3249;
}
.cec-admin-table tbody tr:last-child td {
  border-bottom: 0;
}

/* Premium status badges */
.cec-admin-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 26px;
  padding: 4px 10px 4px 8px;
  border-radius: 999px;
  background: #edf3fa;
  color: #234467;
  font-size: 11px;
  font-weight: 900;
  text-transform: capitalize;
  letter-spacing: .02em;
}
.cec-admin-status::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  opacity: .5;
}
.status-activo { background: #e8f4ff; color: #145184; }
.status-entregado { background: #edf9f0; color: #21613c; }
.status-vencido { background: #fff1ee; color: #9b3424; }
.status-inactivo { background: #f3f4f6; color: #6b7280; }

/* Premium forms */
.cec-admin-form {
  display: grid;
  gap: 16px;
}
.cec-admin-form input,
.cec-admin-form select,
.cec-admin-form textarea {
  width: 100%;
  border: 1px solid #d7e1ed;
  border-radius: 12px;
  background: #fbfdff;
  color: #1e3249;
  font-size: 13px;
  outline: 0;
  padding: 11px 13px;
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.cec-admin-form input:focus,
.cec-admin-form select:focus,
.cec-admin-form textarea:focus {
  border-color: rgba(13, 45, 77, .4);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(13, 45, 77, .07), inset 0 1px 2px rgba(0,0,0,.02);
}
.cec-admin-form label span {
  color: #53657c;
  font-size: 10.5px;
  font-weight: 900;
  letter-spacing: .09em;
  text-transform: uppercase;
  margin-bottom: 2px;
}

/* Premium grade section - collapsible */
.grade-assign-section {
  margin-top: 24px;
  border-top: 2px dashed #dce6f1;
  padding-top: 8px;
}
.admin-collapsible {
  border: 0;
  background: transparent;
}
.admin-collapsible-header {
  display: flex !important;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 52px;
  padding: 14px 18px;
  border: 1px solid #dde7f1;
  border-radius: 16px;
  background: linear-gradient(135deg, #f8fafd, #f2f6fc);
  cursor: pointer;
  list-style: none;
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
  user-select: none;
}
.admin-collapsible-header::-webkit-details-marker {
  display: none;
}
.admin-collapsible-header:hover {
  border-color: rgba(13, 45, 77, .25);
  background: linear-gradient(135deg, #f2f6fc, #eef4fa);
  box-shadow: 0 6px 16px rgba(22, 48, 82, .06);
}
.admin-collapsible-header strong {
  display: block;
  margin-top: 2px;
  color: #0d2d4d;
  font-size: 16px;
  font-weight: 900;
}
.admin-collapsible .cec-section-kicker {
  font-size: 10px;
}
.admin-chevron {
  display: inline-flex;
  width: 10px;
  height: 10px;
  border-right: 2.5px solid #4d6178;
  border-bottom: 2.5px solid #4d6178;
  transform: rotate(45deg);
  transition: transform .2s ease;
  flex-shrink: 0;
}
.admin-collapsible[open] .admin-chevron {
  transform: rotate(-135deg);
}
.admin-collapsible-body {
  padding-top: 14px;
  animation: adminFadeIn .2s ease;
}
@keyframes adminFadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}
.admin-badge-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  min-height: 24px;
  padding: 0 8px;
  border-radius: 999px;
  background: #0d2d4d;
  color: #fff;
  font-size: 12px;
  font-weight: 900;
  line-height: 1;
  margin-left: 8px;
}

.cec-admin-search-inline {
  display: flex;
  gap: 10px;
  align-items: end;
  padding: 16px;
  border: 1px solid #dde7f1;
  border-radius: 16px;
  background: linear-gradient(135deg, #f8fafd, #f2f6fc);
  margin-bottom: 16px;
}
.cec-admin-search-inline label {
  flex: 1;
}
.cec-admin-search-inline label span {
  display: block;
  margin-bottom: 6px;
  color: #53657c;
  font-size: 10.5px;
  font-weight: 900;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.cec-admin-search-inline input {
  width: 100%;
  min-height: 44px;
  padding: 10px 14px;
  border: 1px solid #d0dbe9;
  border-radius: 12px;
  background: #fff;
  font-size: 13px;
  outline: 0;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.cec-admin-search-inline input:focus {
  border-color: rgba(13,45,77,.35);
  box-shadow: 0 0 0 4px rgba(13,45,77,.06);
}
.cec-admin-search-inline button {
  min-height: 44px;
  padding: 10px 20px;
  border: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, #0d2d4d, #1a5780);
  color: #fff;
  font-size: 13px;
  font-weight: 900;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 0 10px 22px rgba(13,45,77,.15);
  transition: transform .15s ease, box-shadow .15s ease;
}
.cec-admin-search-inline button:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 26px rgba(13,45,77,.2);
}
.cec-admin-search-inline a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid #d0dbe9;
  border-radius: 12px;
  background: #fff;
  color: #40516a;
  font-size: 12px;
  font-weight: 900;
  text-decoration: none;
  white-space: nowrap;
}

/* Premium assign table */
.assign-table {
  border-collapse: separate;
  border-spacing: 0 6px;
}
.assign-table thead th {
  padding: 10px 14px;
  border: 0;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #5f7187;
}
.assign-table tbody tr {
  background: #fff;
  box-shadow: 0 4px 12px rgba(22,48,82,.05);
  border-radius: 14px;
  transition: box-shadow .15s ease, transform .15s ease;
}
.assign-table tbody tr:hover {
  box-shadow: 0 8px 20px rgba(22,48,82,.09);
  transform: translateY(-1px);
}
.assign-table tbody td {
  padding: 13px 14px;
  border-top: 1px solid #e5ecf4;
  border-bottom: 1px solid #e5ecf4;
  font-size: 13px;
  vertical-align: middle;
}
.assign-table tbody td:first-child {
  border-left: 1px solid #e5ecf4;
  border-radius: 14px 0 0 14px;
}
.assign-table tbody td:last-child {
  border-right: 1px solid #e5ecf4;
  border-radius: 0 14px 14px 0;
}
.assign-section-input {
  padding: 7px 10px;
  border: 1px solid #d0dbe9;
  border-radius: 10px;
  font-size: 12px;
  width: 80px;
  outline: 0;
  transition: border-color .15s ease;
}
.assign-section-input:focus {
  border-color: rgba(13,45,77,.35);
}

/* File upload styling */
.admin-file-upload {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border: 2px dashed #cdd9e7;
  border-radius: 14px;
  background: #f8fafd;
  cursor: pointer;
  transition: border-color .2s ease, background .2s ease;
}
.admin-file-upload:hover {
  border-color: var(--admin-navy);
  background: #f2f6fc;
}
.admin-file-upload input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}
.admin-file-upload .upload-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: #eef4fa;
  color: var(--admin-navy);
  font-size: 18px;
  font-weight: 900;
}
.admin-file-upload .upload-text strong {
  display: block;
  color: #1e3249;
  font-size: 12.5px;
}
.admin-file-upload .upload-text small {
  color: #6b7c92;
  font-size: 11px;
}
.admin-file-preview {
  width: 60px;
  height: 60px;
  border-radius: 12px;
  object-fit: cover;
  border: 1px solid #dde6f0;
}

/* Responsive */
@media (max-width: 900px) {
  .cec-admin-search-inline {
    flex-direction: column;
  }
  .assign-section-input {
    width: 100%;
  }
}

/* Dashboard stats grid */
.admin-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 18px;
}
.admin-stats article {
  padding: 20px;
  border: 1px solid #e2eaf3;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 14px 38px rgba(22, 48, 82, .07);
  transition: box-shadow .2s ease, transform .2s ease;
}
.admin-stats article:hover {
  box-shadow: 0 18px 44px rgba(22, 48, 82, .1);
  transform: translateY(-2px);
}
.admin-stats span {
  display: block;
  color: #6f7e91;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.admin-stats strong {
  display: block;
  margin-top: 8px;
  color: #0d2d4d;
  font-size: 32px;
  line-height: 1;
}

/* Form grid - base definition */
.cec-admin-form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.cec-admin-form-grid.compact {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.cec-admin-form-grid label.wide {
  grid-column: 1 / -1;
}

/* Form card with extra padding */
.cec-form-card {
  padding: 24px;
  border-radius: 20px;
}

/* Premium form section styling */
.cec-admin-card .cec-admin-form {
  padding: 24px;
}

.cec-admin-form-grid label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 0;
}

.cec-admin-form-grid label > span {
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: #4d6178;
  padding-left: 2px;
}

.cec-admin-form-grid input,
.cec-admin-form-grid select,
.cec-admin-form-grid textarea {
  width: 100%;
  min-height: 44px;
  padding: 10px 14px;
  border: 1.5px solid #d5e0ec;
  border-radius: 12px;
  background: #fafcff;
  color: #1e3249;
  font-size: 14px;
  outline: 0;
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}

.cec-admin-form-grid input:focus,
.cec-admin-form-grid select:focus,
.cec-admin-form-grid textarea:focus {
  border-color: rgba(13, 45, 77, .5);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(13, 45, 77, .08);
}

.cec-admin-form-grid select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23334' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 38px;
  cursor: pointer;
}

.cec-action-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  min-width: 200px;
  padding: 12px 28px;
  border: 0;
  border-radius: 14px;
  background: linear-gradient(135deg, #0d2d4d, #174f7a);
  color: #fff !important;
  font-size: 14px;
  font-weight: 900;
  letter-spacing: .02em;
  cursor: pointer;
  box-shadow: 0 14px 30px rgba(13, 45, 77, .22);
  transition: transform .15s ease, box-shadow .15s ease;
}

.cec-action-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 38px rgba(13, 45, 77, .28);
}

.cec-action-button:active {
  transform: translateY(0);
  box-shadow: 0 10px 20px rgba(13, 45, 77, .18);
}

/* Toggle for advanced form fields */
.admin-toggle-advanced {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 42px;
  padding: 10px 20px;
  margin: 4px 0 10px;
  border: 1.5px dashed #cbd7e6;
  border-radius: 12px;
  background: #f7fafd;
  color: #3f5772;
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
  transition: border-color .2s ease, background .2s ease, color .2s ease;
  width: 100%;
}
.admin-toggle-advanced:hover {
  border-color: var(--admin-navy);
  background: #eef4fa;
  color: var(--admin-navy);
}
.admin-toggle-advanced.is-open {
  border-style: solid;
  background: #eaf1f9;
  color: var(--admin-navy);
}
.admin-advanced-fields {
  display: none;
  margin-bottom: 8px;
}
.admin-advanced-fields.is-visible {
  display: block;
}
.admin-advanced-fields .cec-admin-form-grid {
  padding: 18px;
  margin-bottom: 8px;
  border: 1px solid #e2eaf3;
  border-radius: 16px;
  background: #f9fbfe;
}

/* Gender radio group */
.admin-gender-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding-top: 4px;
}
.admin-gender-option {
  display: inline-flex !important;
  align-items: center;
  gap: 6px;
  min-height: 40px;
  padding: 8px 14px 8px 10px;
  border: 1.5px solid #d5e0ec;
  border-radius: 12px;
  background: #fafcff;
  cursor: pointer;
  transition: border-color .2s ease, background .2s ease, box-shadow .2s ease;
  font-size: 13px;
  font-weight: 800;
  color: #1e3249;
  flex-direction: row !important;
}
.admin-gender-option:hover {
  border-color: rgba(13, 45, 77, .35);
  background: #f2f6fc;
}
.admin-gender-option:has(input:checked) {
  border-color: var(--admin-navy);
  background: #eef4fa;
  box-shadow: 0 0 0 3px rgba(13, 45, 77, .1);
}
.admin-gender-option input[type="radio"] {
  width: auto;
  min-height: 0;
  margin: 0;
  accent-color: var(--admin-navy);
}
.admin-gender-field > span {
  display: block;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: #4d6178;
  padding-left: 2px;
  margin-bottom: 6px;
}
.admin-gender-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  object-fit: cover;
}

/* Student avatar in table */
.admin-student-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  box-shadow: 0 4px 10px rgba(22, 48, 82, .12);
}
.admin-student-avatar.empty {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #eef4fa;
  color: #4d6178;
  font-size: 14px;
  font-weight: 900;
}

/* User avatar in admin users table */
.admin-user-avatar-table {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  border: 2px solid #eef4fa;
  box-shadow: 0 4px 10px rgba(22, 48, 82, .1);
}
.admin-user-avatar-table.initial {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0d2d4d, #1b5a83);
  color: #fff;
  font-size: 12px;
  font-weight: 900;
  border: 0;
}

/* User status badge colors */
.cec-admin-status.neutral {
  background: #f1f5f9;
  color: #40516a;
}

/* Responsive form grid */
@media (max-width: 1100px) {
  .cec-admin-form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 720px) {
  .cec-admin-form-grid,
  .cec-admin-form-grid.compact {
    grid-template-columns: 1fr;
  }
}

/* Media queries for responsive */
@media (max-width: 1100px) {
  .admin-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* Strong admin controls refresh */
.admin-body .admin-module-toolbar {
  display: grid;
  gap: 16px;
  padding: 20px;
  border: 1px solid #dde7f1;
  border-radius: 22px;
  background:
    linear-gradient(135deg, rgba(13, 45, 77, .055), rgba(210, 167, 86, .07)),
    #fff;
  box-shadow: 0 18px 45px rgba(22, 48, 82, .10);
}

.admin-body .admin-module-toolbar .admin-list-head {
  padding-bottom: 14px;
  border-bottom: 1px solid #e7edf5;
}

.admin-body .admin-module-toolbar .admin-list-head h2 {
  font-size: 24px;
  line-height: 1.1;
}

.admin-body .admin-searchbar {
  display: grid !important;
  grid-template-columns: minmax(320px, 1fr) 170px 118px auto;
  align-items: end;
  gap: 12px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.admin-body .admin-searchbar label {
  display: grid;
  gap: 7px;
}

.admin-body .admin-searchbar label > span {
  color: #53657c;
  font-size: 10.5px;
  font-weight: 900;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.admin-body .admin-search-field {
  position: relative;
}

.admin-body .admin-search-field input {
  height: 50px;
  padding-left: 46px !important;
  border: 1px solid #cfdbe8 !important;
  border-radius: 15px !important;
  background: #fff !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.9), 0 10px 24px rgba(28, 52, 82, .07);
  color: #17283d;
  font-size: 14px;
}

.admin-body .admin-search-field i {
  left: 16px;
  bottom: 15px;
  border-color: var(--admin-navy);
  opacity: .72;
}

.admin-body .admin-search-field i::after {
  background: var(--admin-navy);
}

.admin-body .admin-per-page select {
  height: 50px;
  border: 1px solid #cfdbe8 !important;
  border-radius: 15px !important;
  background: #fff !important;
  box-shadow: 0 10px 24px rgba(28, 52, 82, .06);
  font-weight: 800;
}

.admin-body .admin-searchbar button {
  height: 50px;
  border: 0 !important;
  border-radius: 15px !important;
  background: linear-gradient(135deg, #0d2d4d 0%, #15527d 100%) !important;
  color: #fff !important;
  box-shadow: 0 14px 28px rgba(13, 45, 77, .24);
}

.admin-body .admin-searchbar button span::before {
  content: "";
  display: inline-block;
  width: 11px;
  height: 11px;
  margin-right: 8px;
  border: 2px solid currentColor;
  border-radius: 50%;
  box-shadow: 5px 5px 0 -3px currentColor;
}

.admin-body .admin-clear-search {
  display: inline-flex;
  height: 50px;
  align-items: center;
  justify-content: center;
  border-radius: 15px;
  border: 1px solid #d9e2ec;
  background: #f8fafc;
  color: #40516a !important;
  box-shadow: 0 8px 18px rgba(28, 52, 82, .05);
}

.admin-body .admin-pagination {
  margin-top: 18px;
  padding: 14px;
  border: 1px solid #dbe5ef;
  border-radius: 18px;
  background:
    linear-gradient(180deg, #fff, #f7fafc);
  box-shadow: 0 14px 30px rgba(22, 48, 82, .08);
}

.admin-body .admin-page-summary {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 8px 12px;
  border-radius: 13px;
  background: #eef4fa;
  color: #4d6178;
  gap: 4px;
}

.admin-body .admin-page-summary strong {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--admin-navy);
}

.admin-body .admin-page-buttons {
  display: flex;
  gap: 7px;
  align-items: center;
  flex-wrap: wrap;
}

.admin-body .admin-pagination .admin-page-buttons a,
.admin-body .admin-pagination .admin-page-current {
  min-width: 38px;
  min-height: 38px;
  justify-content: center;
  padding: 8px 12px;
  border: 1px solid #d8e3ee;
  border-radius: 13px;
  background: #fff;
  color: #344962;
  box-shadow: 0 7px 16px rgba(22, 48, 82, .06);
  font-size: 12.5px;
  font-weight: 900;
}

.admin-body .admin-pagination .admin-page-number.active {
  border-color: var(--admin-navy);
  background: var(--admin-navy);
  color: #fff;
  box-shadow: 0 12px 24px rgba(13, 45, 77, .26);
}

.admin-body .admin-pagination .admin-page-prev,
.admin-body .admin-pagination .admin-page-next {
  min-width: 92px;
}

.admin-body .admin-pagination .admin-page-buttons a:hover {
  border-color: var(--admin-gold);
  color: var(--admin-navy);
  transform: translateY(-1px);
}

@media (max-width: 900px) {
  .admin-body .admin-searchbar {
    grid-template-columns: 1fr 150px;
  }
}

/* Sidebar compact polish */
.admin-body .admin-sidebar {
  gap: 9px;
  padding: 14px 12px;
}

.admin-body .admin-sidebar-brand {
  min-height: 52px;
  gap: 10px;
  padding: 8px 8px 10px;
}

.admin-body .admin-sidebar-brand img {
  width: 48px;
  height: 48px;
  padding: 7px;
  border: 1px solid rgba(210, 167, 86, .38);
  border-radius: 16px;
  background:
    radial-gradient(circle at 30% 20%, rgba(255,255,255,.16), transparent 35%),
    linear-gradient(135deg, #0d2d4d, #174b73);
  box-shadow: 0 14px 26px rgba(13, 45, 77, .22);
  filter: drop-shadow(0 2px 2px rgba(255,255,255,.45)) contrast(1.08);
}

.admin-body .admin-sidebar-brand strong {
  font-size: 15.5px;
}

.admin-body .admin-sidebar-brand span {
  font-size: 11px;
}

.admin-body .admin-sidebar-user-card {
  padding: 9px 10px;
  border-radius: 15px;
  box-shadow: 0 8px 18px rgba(22, 48, 82, .055);
}

.admin-body .admin-user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 12px;
}

.admin-body .admin-nav {
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding: 2px 3px 2px 0;
}

.admin-body .admin-nav-group + .admin-nav-group {
  margin-top: 1px;
}

.admin-body .admin-nav-group summary {
  min-height: 30px;
  padding: 6px 9px;
  border-radius: 11px;
  font-size: 10px;
  letter-spacing: .09em;
}

.admin-body .admin-nav-group summary i {
  width: 7px;
  height: 7px;
}

.admin-body .admin-nav-group div {
  gap: 3px;
  padding: 1px 0 4px;
}

.admin-body .admin-nav a {
  min-height: 34px;
  gap: 8px;
  padding: 6px 9px 6px 10px;
  border-radius: 12px;
  font-size: 12px;
}

.admin-body .admin-nav-icon {
  width: 24px;
  height: 24px;
  flex-basis: 24px;
  border-radius: 9px;
}

.admin-body .admin-nav a::before {
  top: 8px;
  bottom: 8px;
}

.admin-body .admin-sidebar-footer {
  gap: 8px;
  padding-top: 8px;
}

.admin-body .admin-sidebar-mini-stats {
  gap: 6px;
}

.admin-body .admin-sidebar-mini-stats article {
  padding: 8px 9px;
  border-radius: 13px;
}

.admin-body .admin-sidebar-mini-stats strong {
  font-size: 18px;
}

.admin-body .admin-sidebar-footer > a {
  min-height: 36px;
  border-radius: 12px;
  font-size: 12px;
}

@media (max-height: 760px) {
  .admin-body .admin-sidebar-user-card {
    display: none;
  }
  .admin-body .admin-sidebar-mini-stats {
    display: none;
  }
}

/* Logo contrast system */
.admin-body .admin-logo-badge {
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  flex: 0 0 50px;
  padding: 7px;
  border: 1px solid rgba(210, 167, 86, .45);
  border-radius: 17px;
  background:
    radial-gradient(circle at 28% 18%, rgba(255,255,255,.18), transparent 34%),
    linear-gradient(135deg, #071d33 0%, #0d2d4d 48%, #1d5b83 100%);
  box-shadow:
    0 16px 30px rgba(13, 45, 77, .26),
    inset 0 1px 0 rgba(255,255,255,.16);
}

.admin-body .admin-logo-badge img {
  width: 100% !important;
  height: 100% !important;
  padding: 0 !important;
  object-fit: contain;
  border: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  filter: drop-shadow(0 2px 3px rgba(0,0,0,.28)) contrast(1.08);
}

.admin-body .admin-logo-badge-large {
  width: 82px;
  height: 82px;
  margin: 0 auto 14px;
  padding: 11px;
  border-radius: 24px;
  box-shadow:
    0 22px 48px rgba(13, 45, 77, .25),
    inset 0 1px 0 rgba(255,255,255,.18);
}

.admin-body .admin-login-brand img {
  width: 100%;
  height: 100%;
}

.admin-body .admin-sidebar-brand > img {
  display: none;
}

@media (max-width: 640px) {
  .admin-body .admin-logo-badge-large {
    width: 74px;
    height: 74px;
    border-radius: 22px;
  }
}

@media (max-width: 640px) {
  .admin-body .admin-module-toolbar {
    padding: 16px;
  }
  .admin-body .admin-searchbar {
    grid-template-columns: 1fr;
  }
  .admin-body .admin-pagination,
  .admin-body .admin-page-buttons {
    align-items: stretch;
    flex-direction: column;
  }
  .admin-body .admin-pagination .admin-page-buttons a,
  .admin-body .admin-pagination .admin-page-current {
    width: 100%;
  }
}

/* Sidebar redesign */
.admin-body .admin-sidebar-toggle {
  position: fixed;
  opacity: 0;
  pointer-events: none;
}

.admin-body .admin-app {
  grid-template-columns: 292px minmax(0, 1fr);
  background: var(--admin-bg);
}

.admin-body .admin-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  max-height: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 18px 14px;
  overflow: hidden;
  border-right: 1px solid #dbe5ef;
  background:
    linear-gradient(180deg, #ffffff 0%, #f7fafc 62%, #eef4fa 100%);
  box-shadow: 18px 0 45px rgba(22, 48, 82, .06);
}

.admin-body .admin-sidebar-brand {
  min-height: 58px;
  padding: 10px 10px 16px;
  border-bottom: 1px solid #e2eaf3;
}

.admin-body .admin-sidebar-brand img {
  width: 42px;
  height: 42px;
  padding: 6px;
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 10px 22px rgba(22, 48, 82, .08);
}

.admin-body .admin-sidebar-brand strong {
  font-size: 16px;
}

.admin-body .admin-sidebar-brand span {
  display: block;
  max-width: 170px;
  margin-top: 2px;
  color: #6c7b90;
  font-size: 11.5px;
  line-height: 1.25;
}

.admin-body .admin-sidebar-close {
  display: none;
  margin-left: auto;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 12px;
  background: #f0f4f8;
  color: var(--admin-navy);
  font-size: 22px;
  font-weight: 800;
  cursor: pointer;
}

.admin-body .admin-sidebar-user-card {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 12px;
  border: 1px solid #dfe8f2;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 12px 26px rgba(22, 48, 82, .07);
}

.admin-body .admin-user-avatar {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--admin-navy), #1b5a83);
  color: #fff;
  font-size: 14px;
  font-weight: 900;
}

.admin-body .admin-sidebar-user-card strong {
  display: block;
  color: #1f3047;
  font-size: 13px;
  line-height: 1.2;
}

.admin-body .admin-sidebar-user-card span {
  color: #7a8798;
  font-size: 11.5px;
  font-weight: 700;
}

.admin-body .admin-nav {
  flex: 1;
  min-height: 0;
  margin-top: 0;
  padding-right: 4px;
  overflow-y: auto;
  scrollbar-width: thin;
}

.admin-body .admin-nav-group {
  border: 0;
  border-radius: 16px;
  background: transparent;
  overflow: visible;
}

.admin-body .admin-nav-group + .admin-nav-group {
  margin-top: 4px;
}

.admin-body .admin-nav-group summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 38px;
  padding: 9px 10px;
  border-radius: 14px;
  color: #6e7e91;
  transition: background .18s ease, color .18s ease;
}

.admin-body .admin-nav-group summary:hover {
  background: #eef4fa;
  color: var(--admin-navy);
}

.admin-body .admin-nav-group summary::after {
  display: none;
}

.admin-body .admin-nav-group summary i {
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(-45deg);
  transition: transform .18s ease;
}

.admin-body .admin-nav-group[open] summary i {
  transform: rotate(45deg);
}

.admin-body .admin-nav-group div {
  display: grid;
  gap: 5px;
  padding: 3px 0 8px;
  animation: adminNavDrop .18s ease;
}

@keyframes adminNavDrop {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.admin-body .admin-nav a {
  position: relative;
  min-height: 39px;
  gap: 10px;
  padding: 8px 10px 8px 12px;
  border: 1px solid transparent;
  border-radius: 14px;
  color: #40516a;
  font-size: 12.5px;
  transition: background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}

.admin-body .admin-nav a::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 9px;
  bottom: 9px;
  width: 3px;
  border-radius: 999px;
  background: transparent;
}

.admin-body .admin-nav a:hover {
  border-color: #dbe5ef;
  background: #fff;
  color: var(--admin-navy);
  transform: translateX(2px);
  box-shadow: 0 9px 20px rgba(22, 48, 82, .06);
}

.admin-body .admin-nav a.active {
  border-color: rgba(13, 45, 77, .12);
  background: linear-gradient(135deg, #eef6fd, #fff);
  color: var(--admin-navy);
  box-shadow: 0 10px 24px rgba(22, 48, 82, .09);
}

.admin-body .admin-nav a.active::before {
  background: var(--admin-gold);
}

.admin-body .admin-nav-icon {
  width: 27px;
  height: 27px;
  display: inline-grid;
  place-items: center;
  flex: 0 0 27px;
  border-radius: 10px;
  background: #eef4fa;
  color: var(--admin-navy);
  font-size: 12px;
  font-weight: 900;
}

.admin-body .admin-nav a.active .admin-nav-icon {
  background: var(--admin-navy);
  color: #fff;
}

.admin-body .admin-sidebar-footer {
  display: grid;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid #e2eaf3;
}

.admin-body .admin-sidebar-mini-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.admin-body .admin-sidebar-mini-stats article {
  padding: 10px;
  border: 1px solid #dfe8f2;
  border-radius: 15px;
  background: #fff;
}

.admin-body .admin-sidebar-mini-stats span {
  display: block;
  color: #7a8798;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.admin-body .admin-sidebar-mini-stats strong {
  display: block;
  margin-top: 4px;
  color: var(--admin-navy);
  font-size: 20px;
}

.admin-body .admin-sidebar-footer > a {
  display: flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--admin-navy), #1b5a83);
  color: #fff;
  font-size: 12.5px;
  font-weight: 900;
  text-decoration: none;
  box-shadow: 0 12px 24px rgba(13, 45, 77, .2);
}

/* Sidebar mobile nav - hidden on desktop, shown on mobile */
.admin-body .admin-sidebar-mobile-nav {
  display: none;
}
.admin-body .admin-mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 10px 12px;
  border-radius: 12px;
  background: #f0f4fa;
  color: #40516a;
  text-decoration: none;
  font-size: 12.5px;
  font-weight: 800;
  transition: background .15s ease;
}
.admin-body .admin-mobile-nav-link:hover {
  background: #e2eaf4;
}

.admin-body .admin-mobile-menu-button {
  display: none;
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex-direction: column;
  border-radius: 14px;
  border: 1px solid #dbe5ef;
  background: #fff;
  cursor: pointer;
}

.admin-body .admin-mobile-menu-button span {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--admin-navy);
}

.admin-body .admin-sidebar-backdrop {
  display: none;
}

.admin-student-picker,
.admin-combo-picker {
  position: relative;
}

.admin-student-combo,
.admin-combo {
  position: relative;
}

.admin-student-picker .admin-student-select,
.admin-combo-picker .admin-combo-source {
  display: none;
}

.admin-enhanced-source {
  display: none !important;
}

.admin-student-picker .admin-student-search,
.admin-combo-picker .admin-combo-search {
  padding-right: 46px;
}

.admin-student-toggle,
.admin-combo-toggle {
  position: absolute;
  right: 6px;
  top: 6px;
  width: 32px;
  height: 30px;
  border: 0;
  border-radius: 9px;
  background: #eef4f9;
  color: var(--admin-navy);
  font-size: 14px;
  font-weight: 900;
  cursor: pointer;
}

.admin-student-options,
.admin-combo-options {
  position: absolute;
  z-index: 30;
  top: calc(100% + 7px);
  left: 0;
  right: 0;
  max-height: 245px;
  overflow-y: auto;
  padding: 6px;
  border: 1px solid #dbe3ee;
  border-radius: 13px;
  background: #fff;
  box-shadow: 0 18px 42px rgba(13, 34, 56, .18);
}

.admin-student-option,
.admin-combo-option {
  display: block;
  width: 100%;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--admin-text);
  cursor: pointer;
  font-size: 12.5px;
  font-weight: 750;
  padding: 10px 11px;
  text-align: left;
}

.admin-student-option:hover,
.admin-student-option:focus,
.admin-combo-option:hover,
.admin-combo-option:focus {
  background: #eef4f9;
  outline: 0;
}

.admin-student-empty,
.admin-combo-empty {
  color: #7b8796;
  font-size: 12px;
  padding: 11px;
}

.admin-student-picker.is-open .admin-student-search,
.admin-combo-picker.is-open .admin-combo-search {
  border-color: rgba(13, 45, 77, .42);
  box-shadow: 0 0 0 4px rgba(13, 45, 77, .08);
}

.admin-public-back-link {
  display: block;
  margin-top: 12px;
  color: var(--admin-navy);
  font-size: 12px;
  font-weight: 900;
  text-align: center;
  text-decoration: none;
}

.admin-report-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
}

.admin-report-card {
  display: grid;
  gap: 16px;
  align-content: space-between;
  min-height: 190px;
  border: 1px solid #dfe8f2;
  border-radius: 18px;
  background: linear-gradient(180deg, #fff, #f7fafc);
  box-shadow: 0 14px 30px rgba(15, 40, 64, .08);
  padding: 18px;
}

.admin-report-card h3 {
  margin: 6px 0 8px;
  color: var(--admin-navy);
  font-size: 18px;
}

.admin-report-card p {
  margin: 0;
  color: #68788c;
  font-size: 12.5px;
  line-height: 1.45;
}

.admin-report-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.admin-report-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 13px;
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 900;
  line-height: 1;
  padding: 12px 16px;
  text-decoration: none !important;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
}

.admin-report-button.pdf {
  background: #0d2d4d;
  color: #fff !important;
  box-shadow: 0 12px 22px rgba(13, 45, 77, .18);
}

.admin-report-button.excel {
  background: #eef8f2;
  color: #17633a !important;
  border-color: #bfe6cc;
}

.admin-report-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 26px rgba(13, 45, 77, .16);
}

.admin-report-button.excel:hover {
  background: #dff3e7;
  border-color: #8bd3a5;
  color: #0c4f2b !important;
}

.admin-form-error {
  border: 1px solid #ffd3ca;
  border-radius: 13px;
  background: #fff2ef;
  color: #9f3526;
  font-size: 12.5px;
  font-weight: 800;
  padding: 12px 14px;
}

.admin-confirm-open {
  overflow: hidden;
}

.admin-confirm-modal[hidden] {
  display: none;
}

.admin-confirm-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  padding: 20px;
}

.admin-confirm-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(13, 28, 45, .46);
  backdrop-filter: blur(6px);
}

.admin-confirm-card {
  position: relative;
  width: min(100%, 430px);
  border: 1px solid rgba(219, 227, 238, .95);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 24px 60px rgba(13, 28, 45, .25);
  padding: 24px;
  text-align: center;
}

.admin-confirm-icon {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  margin-bottom: 12px;
  background: #fff3d9;
  color: #8a5b00;
  font-weight: 950;
}

.admin-confirm-card h2 {
  margin: 0 0 8px;
  color: var(--admin-navy);
  font-size: 21px;
}

.admin-confirm-card p {
  margin: 0;
  color: #64748b;
  font-size: 13px;
  line-height: 1.55;
}

.admin-confirm-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 20px;
}

.admin-confirm-actions button {
  min-height: 42px;
  border: 0;
  border-radius: 12px;
  padding: 0 16px;
  font-size: 12px;
  font-weight: 900;
  cursor: pointer;
}

.admin-confirm-cancel {
  background: #eef3f8;
  color: #41516a;
}

.admin-confirm-accept {
  background: linear-gradient(135deg, var(--admin-navy), #1f5f87);
  color: #fff;
  box-shadow: 0 12px 24px rgba(13, 45, 77, .18);
}

@media (max-width: 1120px) {
  .admin-grade-grid,
  .admin-student-summary,
  .student-history-grid,
  .admin-report-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .admin-body .admin-app {
    grid-template-columns: 1fr;
  }
  .admin-body .admin-mobile-menu-button,
  .admin-body .admin-sidebar-close {
    display: grid;
  }
  .admin-body .admin-sidebar {
    position: fixed;
    z-index: 50;
    left: 0;
    top: 0;
    width: min(88vw, 320px);
    transform: translateX(-105%);
    transition: transform .24s ease;
  }
  .admin-body .admin-sidebar .admin-nav {
    grid-template-columns: 1fr;
  }
  .admin-body .admin-sidebar-toggle:checked ~ .admin-app .admin-sidebar {
    transform: translateX(0);
  }
  .admin-body .admin-sidebar-toggle:checked ~ .admin-app .admin-sidebar-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 40;
    background: rgba(14, 30, 48, .42);
    backdrop-filter: blur(3px);
  }
}

@media (max-width: 640px) {
  .admin-grade-grid,
  .admin-student-summary,
  .student-history-grid,
  .admin-report-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   NOTIFICATION BELL & DROPDOWN
   ============================================ */
.admin-notif-bell {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  padding: 0 !important;
  border-radius: 999px !important;
  background: #f5f8fb !important;
  border: 1px solid #dce6f0 !important;
  text-decoration: none;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.admin-notif-bell:hover {
  transform: translateY(-1px);
  background: #eef4fa !important;
  box-shadow: 0 6px 14px rgba(13,45,77,.08);
}
.admin-bell-icon {
  font-size: 18px;
  line-height: 1;
}
.admin-bell-badge {
  position: absolute;
  top: -3px;
  right: -3px;
  min-width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
  border-radius: 999px;
  background: #d13b2a;
  color: #fff;
  font-size: 10px;
  font-weight: 900;
  line-height: 1;
  box-shadow: 0 3px 8px rgba(209,59,42,.35);
  animation: admin-bell-pop .3s ease;
}
@keyframes admin-bell-pop {
  0% { transform: scale(0); }
  60% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

/* Notification dropdown */
.admin-notif-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 100;
  width: min(420px, calc(100vw - 40px));
  border: 1px solid #d4e0ec;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 28px 60px rgba(13,28,45,.18);
  overflow: hidden;
  animation: admin-dropdown-in .2s ease;
}
@keyframes admin-dropdown-in {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
.admin-notif-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid #e2eaf3;
  background: #f8fafc;
}
.admin-notif-header strong {
  color: var(--admin-navy);
  font-size: 14px;
  font-weight: 900;
}
.admin-notif-mark-btn {
  border: 0;
  border-radius: 10px;
  background: #eef4fa;
  color: var(--admin-navy);
  font-size: 11px;
  font-weight: 800;
  padding: 7px 11px;
  cursor: pointer;
  transition: background .15s ease;
}
.admin-notif-mark-btn:hover {
  background: #dde7f1;
}
.admin-notif-list {
  max-height: 380px;
  overflow-y: auto;
}
.admin-notif-item {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding: 13px 16px;
  border-bottom: 1px solid #edf2f8;
  transition: background .15s ease;
}
.admin-notif-item:last-child {
  border-bottom: 0;
}
.admin-notif-item:hover {
  background: #f8fafd;
}
.admin-notif-item.unread {
  background: #eef6fd;
}
.admin-notif-icon {
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  font-size: 16px;
  background: #eef4fa;
  color: var(--admin-navy);
}
.admin-notif-icon.vencido {
  background: #fff1ee;
  color: #9b3424;
}
.admin-notif-icon.proximo {
  background: #fff7df;
  color: #8a650e;
}
.admin-notif-body {
  flex: 1;
  min-width: 0;
}
.admin-notif-body p {
  margin: 0;
  color: #1e3249;
  font-size: 12.5px;
  line-height: 1.4;
}
.admin-notif-body small {
  display: block;
  margin-top: 4px;
  color: #798899;
  font-size: 11px;
}
.admin-notif-link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 10px;
  border-radius: 8px;
  background: var(--admin-navy);
  color: #fff !important;
  font-size: 11px;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}
.admin-notif-empty {
  padding: 32px 16px;
  text-align: center;
  color: var(--admin-muted);
  font-size: 13px;
}

/* ============================================
   DASHBOARD ENHANCED
   ============================================ */

/* Enhanced stat cards with labels */
.admin-stats article {
  position: relative;
  overflow: hidden;
}
.admin-stats article small {
  display: block;
  margin-top: 3px;
  color: #8090a4;
  font-size: 11px;
  font-weight: 700;
}
.admin-stats .stat-available { border-left: 4px solid #1f8b4c; }
.admin-stats .stat-borrowed { border-left: 4px solid #14527c; }
.admin-stats .stat-overdue { border-left: 4px solid #c0392b; }
.admin-stats .stat-debtors { border-left: 4px solid #e67e22; }
.admin-stats .stat-today { border-left: 4px solid #2e86c1; }
.admin-stats .stat-returns { border-left: 4px solid #27ae60; }

/* Dashboard grid layout */
.admin-dash-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
  margin-bottom: 18px;
}
.admin-dash-right {
  display: grid;
  gap: 18px;
}
.admin-dash-card {
  border: 1px solid #e2eaf3;
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 14px 38px rgba(22,48,82,.07);
  overflow: hidden;
}
.admin-dash-card-head {
  padding: 16px 18px 0;
}
.admin-dash-card-head h3 {
  margin: 4px 0 0;
  font-size: 18px;
  color: var(--admin-text);
}

/* Activity feed */
.admin-activity-feed {
  padding: 12px 18px 18px;
}
.admin-activity-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid #edf2f8;
}
.admin-activity-item:last-child {
  border-bottom: 0;
}
.admin-activity-icon {
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  font-size: 14px;
  background: #eef4fa;
}
.admin-activity-icon.loan { background: #e1f0fa; }
.admin-activity-icon.return { background: #def1e6; }
.admin-activity-icon.book { background: #f0eef9; }
.admin-activity-text {
  flex: 1;
  min-width: 0;
}
.admin-activity-text span {
  display: block;
  color: #1e3249;
  font-size: 12.5px;
  line-height: 1.38;
}
.admin-activity-text small {
  display: block;
  margin-top: 2px;
  color: #8898ab;
  font-size: 11px;
}
.admin-activity-empty {
  padding: 20px;
  text-align: center;
  color: var(--admin-muted);
  font-size: 13px;
}

/* Quick actions */
.admin-quick-actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 14px 18px 18px;
}
.admin-qa-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-height: 80px;
  padding: 12px 8px;
  border: 1px solid #e2eaf3;
  border-radius: 14px;
  background: #f9fbfe;
  color: var(--admin-text) !important;
  text-decoration: none !important;
  font-size: 11px;
  font-weight: 800;
  text-align: center;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
  line-height: 1.25;
}
.admin-qa-btn:hover {
  border-color: rgba(13,45,77,.22);
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(13,45,77,.08);
}
.admin-qa-icon {
  font-size: 22px;
  line-height: 1;
}

/* Top borrowed books */
.admin-top-books {
  padding: 10px 18px 18px;
  display: grid;
  gap: 8px;
}
.admin-top-book-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.admin-top-rank {
  width: 24px;
  flex: 0 0 24px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: #eef4fa;
  color: var(--admin-navy);
  font-size: 11px;
  font-weight: 900;
}
.admin-top-book-info {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}
.admin-top-book-info strong {
  display: block;
  color: #1e3249;
  font-size: 12px;
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.admin-top-book-info small {
  display: block;
  color: #798899;
  font-size: 11px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.admin-top-bar-wrap {
  width: 50px;
  flex: 0 0 50px;
  height: 8px;
  border-radius: 999px;
  background: #eaf0f6;
  overflow: hidden;
}
.admin-top-bar {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--admin-gold), #c9973a);
  transition: width .4s ease;
}
.admin-top-count {
  flex: 0 0 auto;
  color: var(--admin-muted);
  font-size: 12px;
  font-weight: 800;
  min-width: 20px;
  text-align: right;
}

/* Warning card for overdue */
.admin-dash-warning {
  border-color: #fadbd8;
  background: linear-gradient(135deg, #fff, #fff8f7);
}
.admin-dash-warning .admin-dash-card-head .cec-section-kicker {
  color: #c0392b;
}
.admin-dash-warning .admin-dash-card-head h3 {
  color: #8a2a1e;
}
.admin-dash-more-link {
  display: block;
  padding: 12px 18px;
  text-align: center;
  color: var(--admin-navy) !important;
  font-size: 12px;
  font-weight: 800;
  text-decoration: none;
  border-top: 1px solid #edf2f8;
  transition: background .15s ease;
}
.admin-dash-more-link:hover {
  background: #f8fafc;
}

/* Dashboard responsive */
@media (max-width: 1200px) {
  .admin-dash-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 640px) {
  .admin-quick-actions {
    grid-template-columns: repeat(2, 1fr);
  }
  .admin-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .admin-top-bar-wrap {
    width: 30px;
    flex-basis: 30px;
  }
}

/* ============================================
   AUTHOR CARDS GRID
   ============================================ */
.admin-authors-grid {
  display: grid;
  gap: 12px;
  padding: 0;
}
.admin-author-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  border: 1px solid #e2eaf3;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 8px 24px rgba(22, 48, 82, .06);
  transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
}
.admin-author-card:hover {
  border-color: rgba(13, 45, 77, .16);
  box-shadow: 0 14px 34px rgba(22, 48, 82, .1);
  transform: translateY(-2px);
}
.admin-author-avatar {
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, #0d2d4d, #1b5d87);
  color: #fff;
  font-size: 18px;
  font-weight: 900;
  box-shadow: 0 8px 18px rgba(13, 45, 77, .18);
}
.admin-author-body {
  flex: 1;
  min-width: 0;
}
.admin-author-name {
  display: block;
  color: #0d2d4d;
  font-size: 15px;
  font-weight: 900;
  line-height: 1.3;
}
.admin-author-meta {
  display: flex;
  gap: 14px;
  margin-top: 4px;
  flex-wrap: wrap;
}
.admin-author-meta span {
  color: #5f7187;
  font-size: 12px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.admin-author-actions {
  flex: 0 0 auto;
}
.admin-author-actions .admin-small-button {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-height: 36px;
  padding: 8px 16px;
  border-radius: 12px;
  background: #eef4fa;
  color: #0d2d4d !important;
  font-size: 12px;
  font-weight: 900;
  text-decoration: none;
  box-shadow: none;
  transition: background .15s ease, transform .15s ease;
}
.admin-author-actions .admin-small-button:hover {
  background: #dde7f1;
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(22, 48, 82, .1);
}
.admin-authors-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 48px 20px;
  text-align: center;
  border: 2px dashed #dde7f1;
  border-radius: 20px;
  background: #f9fbfe;
}
.admin-authors-empty span {
  font-size: 42px;
}
.admin-authors-empty strong {
  color: #0d2d4d;
  font-size: 17px;
}
.admin-authors-empty p {
  color: #6b7c92;
  font-size: 13px;
  max-width: 360px;
  margin: 0;
  line-height: 1.5;
}

/* Author card responsive */
@media (max-width: 640px) {
  .admin-author-card {
    flex-wrap: wrap;
    gap: 12px;
    padding: 14px 16px;
  }
  .admin-author-body {
    min-width: calc(100% - 60px);
  }
  .admin-author-actions {
    margin-left: auto;
  }
  .admin-author-meta {
    gap: 8px;
  }
}

/* Better mobile topbar */
@media (max-width: 1120px) {
  .admin-topbar {
    position: sticky;
    top: 0;
    z-index: 30;
    background: #fff;
    border-bottom: 1px solid var(--admin-line);
  }
}
@media (max-width: 640px) {
  .admin-topbar nav {
    gap: 6px;
  }
  .admin-topbar nav a {
    font-size: 11px;
    padding: 7px 9px;
  }
  .admin-notif-bell {
    width: 36px;
    height: 36px;
  }
  .admin-bell-icon {
    font-size: 15px;
  }
  .admin-bell-badge {
    min-width: 16px;
    height: 16px;
    font-size: 9px;
    padding: 0 4px;
    top: -2px;
    right: -2px;
  }
}

/* ============================================
   === MOBILE-NATIVE DESIGN (< 768px) =========
   ============================================
   Complete redesign for phones — clean, táctil,
   cards instead of tables, full-screen drawer nav.
   ============================================ */

/* ============================================
   PREMIUM MOBILE EXPERIENCE (< 768px)
   Clean, spacious, touch-friendly, elegant.
   ============================================ */

@media (max-width: 768px) {

  /* ---- HIDE SECONDARY TOPBAR ITEMS ---- */
  .admin-body .admin-topbar-links,
  .admin-body .admin-user {
    display: none !important;
  }

  /* ---- SHOW SIDEBAR MOBILE NAV (logout + public site) ---- */
  .admin-body .admin-sidebar-mobile-nav {
    display: grid !important;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .admin-body .admin-mobile-nav-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 12px;
    border-radius: 14px;
    background: #f0f4fa;
    color: #40516a;
    text-decoration: none;
    font-size: 13px;
    font-weight: 800;
    transition: background .15s ease;
  }
  .admin-body .admin-mobile-nav-link:hover {
    background: #e2eaf4;
  }

  /* ---- LAYOUT ---- */
  .admin-body .admin-content {
    padding: 20px 16px;
    gap: 18px;
  }
  .admin-body .cec-admin-card {
    border-radius: 20px;
    box-shadow: 0 8px 28px rgba(22, 48, 82, .06);
  }

  /* ---- TOPBAR: minimal & clean ---- */
  .admin-body .admin-topbar {
    min-height: 60px;
    padding: 10px 16px;
    gap: 10px;
    flex-direction: row;
    position: sticky;
    top: 0;
    z-index: 30;
    background: rgba(255,255,255,.88);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid #eef3f9;
  }
  .admin-body .admin-topbar > div:first-child span {
    font-size: 10px;
    letter-spacing: .1em;
    color: #8899ac;
  }
  .admin-body .admin-topbar > div:first-child strong {
    font-size: 18px;
    margin-top: 1px;
  }
  .admin-body .admin-topbar nav {
    margin-left: auto;
    gap: 4px;
  }
  /* Notification bell only */
  .admin-body .admin-notif-bell {
    width: 42px;
    height: 42px;
  }
  .admin-body .admin-bell-icon {
    font-size: 18px;
  }
  .admin-body .admin-bell-badge {
    min-width: 20px;
    height: 20px;
    font-size: 10px;
    padding: 0 6px;
  }
  
  /* Hamburger menu button */
  .admin-body .admin-mobile-menu-button {
    width: 42px;
    height: 42px;
    flex-basis: 42px;
    border-radius: 14px;
    display: inline-flex;
  }

  /* ---- SIDEBAR: elegant full-screen drawer ---- */
  .admin-body .admin-sidebar {
    width: 100vw !important;
    max-width: 100vw !important;
    height: 100dvh;
    border-radius: 0;
    transform: translateX(-110%);
    transition: transform .35s cubic-bezier(.22, 1, .36, 1);
    padding: 24px 20px;
    background: #fff;
    z-index: 60;
    overflow-y: auto;
  }
  .admin-body .admin-sidebar-brand {
    padding-bottom: 18px;
  }
  .admin-body .admin-sidebar-brand strong {
    font-size: 17px;
  }
  .admin-body .admin-sidebar-toggle:checked ~ .admin-app .admin-sidebar {
    transform: translateX(0);
  }
  .admin-body .admin-sidebar-toggle:checked ~ .admin-app .admin-sidebar-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 55;
    background: rgba(6, 18, 32, .48);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
  }
  .admin-body .admin-sidebar-close {
    display: grid;
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: #f2f6fc;
    font-size: 20px;
  }
  .admin-body .admin-sidebar-user-card {
    display: flex !important;
    padding: 14px;
    border-radius: 18px;
    background: linear-gradient(135deg, #f8fafd, #f0f5fb);
    border: 1px solid #e6edf6;
  }
  .admin-body .admin-sidebar-mini-stats {
    display: grid !important;
    gap: 10px;
  }
  .admin-body .admin-sidebar-mini-stats article {
    padding: 12px;
    border-radius: 16px;
  }
  .admin-body .admin-sidebar-mini-stats strong {
    font-size: 22px;
  }
  .admin-body .admin-nav a {
    min-height: 48px;
    padding: 12px 14px;
    font-size: 15px;
    border-radius: 14px;
  }
  .admin-body .admin-nav-group summary {
    min-height: 44px;
    padding: 12px 14px;
    font-size: 11px;
    border-radius: 12px;
  }
  .admin-body .admin-nav-icon {
    width: 32px;
    height: 32px;
    flex-basis: 32px;
    font-size: 14px;
    border-radius: 11px;
  }

  /* ---- HEADER / TITLE ---- */
  .admin-body .admin-head {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .admin-body .admin-head h2 {
    font-size: 26px;
    margin-top: 2px;
  }
  .admin-body .cec-admin-head {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .admin-body .cec-admin-head h2 {
    font-size: 24px;
  }

  /* ---- TOOLBAR (search + actions) ---- */
  .admin-body .admin-module-toolbar {
    padding: 18px;
    gap: 14px;
    border-radius: 20px;
  }
  .admin-body .admin-module-toolbar .admin-list-head {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding-bottom: 14px;
  }
  .admin-body .admin-module-toolbar .admin-list-head h2 {
    font-size: 22px;
  }
  .admin-body .admin-primary-link,
  .admin-body .admin-secondary-link {
    width: 100%;
    text-align: center;
    padding: 13px;
    font-size: 13px;
  }
  .admin-body .admin-searchbar {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 0;
  }
  .admin-body .admin-search-field input {
    height: 50px;
    font-size: 15px;
    padding-left: 48px !important;
    border-radius: 16px !important;
  }
  .admin-body .admin-search-field i {
    bottom: 16px;
    left: 17px;
    width: 16px;
    height: 16px;
  }
  .admin-body .admin-per-page select {
    height: 50px;
    font-size: 14px;
  }
  .admin-body .admin-searchbar button {
    height: 50px;
    font-size: 14px;
  }

  /* ---- STATS: premium card grid ---- */
  .admin-body .admin-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 6px;
  }
  .admin-body .admin-stats article {
    padding: 18px 16px;
    border-radius: 18px;
    border-left: 4px solid var(--admin-navy);
  }
  .admin-body .admin-stats span {
    font-size: 11px;
    letter-spacing: .08em;
  }
  .admin-body .admin-stats strong {
    font-size: 30px;
    margin-top: 6px;
  }
  .admin-body .admin-stats article small {
    font-size: 11px;
    margin-top: 3px;
    color: #8899ac;
  }
  .admin-body .admin-stats .stat-available,
  .admin-body .admin-stats .stat-borrowed,
  .admin-body .admin-stats .stat-overdue,
  .admin-body .admin-stats .stat-debtors,
  .admin-body .admin-stats .stat-today,
  .admin-body .admin-stats .stat-returns {
    border-left-width: 4px;
  }

  /* ---- TABLE CARDS: spacious & premium ---- */
  .admin-body .cec-admin-table thead {
    display: none;
  }
  .admin-body .cec-admin-table,
  .admin-body .cec-admin-table tbody,
  .admin-body .cec-admin-table tr,
  .admin-body .cec-admin-table td {
    display: block;
    width: 100% !important;
    box-sizing: border-box;
  }
  .admin-body .cec-admin-table tbody tr {
    background: #fff;
    border: 1px solid #e8eff6;
    border-radius: 18px;
    padding: 18px 16px;
    margin-bottom: 14px;
    box-shadow: 0 6px 20px rgba(22, 48, 82, .05);
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
    position: relative;
    transition: box-shadow .2s ease;
  }
  .admin-body .cec-admin-table tbody tr:active {
    box-shadow: 0 2px 10px rgba(22, 48, 82, .08);
  }
  .admin-body .cec-admin-table tbody td {
    border: none;
    padding: 4px 0;
    font-size: 14px;
    display: flex;
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
    line-height: 1.4;
  }
  .admin-body .cec-admin-table tbody td strong {
    font-size: 15px;
  }
  /* Label above the value */
  .admin-body .cec-admin-table tbody td::before {
    content: attr(data-label);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: #8899ac;
    display: block;
  }
  .admin-body .cec-admin-table tbody td[data-label=""]::before {
    display: none;
  }
  /* Avatar/initial badges */
  .admin-body .cec-admin-table tbody td[data-label=""]:first-child {
    flex-direction: row;
    justify-content: center;
    align-self: center;
    margin-bottom: 4px;
  }
  .admin-student-avatar,
  .admin-user-avatar-table {
    width: 44px;
    height: 44px;
  }
  .admin-user-avatar-table.initial {
    font-size: 15px;
  }
  .admin-body .cec-admin-table tbody td.status-cell,
  .admin-body .cec-admin-table tbody td[data-label="Estado"] {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  /* Actions row */
  .admin-body .cec-admin-table tbody td.admin-table-actions {
    margin-top: 8px;
    padding-top: 12px;
    border-top: 1px solid #eef3f9;
    flex-direction: row;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
  }
  .admin-body .admin-table-actions {
    min-width: 0;
    white-space: normal;
  }
  .admin-body .admin-small-button {
    font-size: 13px;
    padding: 11px 20px;
    min-height: 42px;
    border-radius: 12px;
    font-weight: 800;
  }
  .admin-body .admin-inline-action {
    margin-left: 0;
  }
  .admin-body .cec-admin-status {
    font-size: 12px;
    min-height: 28px;
    padding: 5px 12px 5px 10px;
    border-radius: 999px;
  }
  .admin-body .cec-admin-status::before {
    width: 6px;
    height: 6px;
  }

  /* ---- PAGINATION ---- */
  .admin-body .admin-pagination {
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    padding: 16px;
    border-radius: 18px;
    margin-top: 6px;
  }
  .admin-body .admin-page-buttons {
    justify-content: center;
    gap: 8px;
  }
  .admin-body .admin-pagination .admin-page-buttons a,
  .admin-body .admin-pagination .admin-page-current {
    min-width: 40px;
    min-height: 40px;
    padding: 9px 14px;
    font-size: 13px;
    border-radius: 12px;
  }
  .admin-body .admin-pagination .admin-page-summary {
    font-size: 13px;
    min-height: 38px;
    padding: 9px 14px;
  }

  /* ---- DASHBOARD ---- */
  .admin-body .admin-dash-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .admin-body .admin-quick-actions {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    padding: 16px;
  }
  .admin-body .admin-qa-btn {
    min-height: 80px;
    padding: 14px 8px;
    font-size: 12px;
    border-radius: 16px;
  }
  .admin-body .admin-qa-icon {
    font-size: 24px;
  }
  .admin-body .admin-dash-card {
    border-radius: 20px;
  }
  .admin-body .admin-dash-card-head h3 {
    font-size: 18px;
  }
  .admin-body .admin-dash-card-head {
    padding: 18px 18px 0;
  }
  .admin-body .admin-top-book-info strong {
    font-size: 13px;
  }
  .admin-body .admin-top-book-info small {
    font-size: 11px;
  }

  /* ---- GRADE GRID ---- */
  .admin-body .admin-grade-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .admin-body .admin-grade-card {
    min-height: 120px;
    padding: 20px;
    border-radius: 20px;
  }
  .admin-body .admin-grade-card strong {
    font-size: 34px;
  }
  .admin-body .admin-grade-card span {
    font-size: 15px;
  }

  /* ---- STUDENT SUMMARY ---- */
  .admin-body .admin-student-summary {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .admin-body .admin-student-summary article {
    padding: 16px;
    border-radius: 18px;
  }
  .admin-body .admin-student-summary strong {
    font-size: 15px;
  }

  /* ---- FORMS ---- */
  .admin-body .cec-admin-form-grid,
  .admin-body .cec-admin-form-grid.compact {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .cec-admin-card .cec-admin-form {
    padding: 20px;
  }
  .admin-body .cec-action-button {
    min-height: 50px;
    font-size: 15px;
    border-radius: 16px;
  }
  .admin-body .cec-admin-form-grid input,
  .admin-body .cec-admin-form-grid select,
  .admin-body .cec-admin-form-grid textarea {
    min-height: 50px;
    font-size: 16px;
    padding: 14px 16px;
    border-radius: 14px;
  }
  .admin-gender-group {
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 10px;
    padding-bottom: 4px;
  }
  .admin-gender-option {
    padding: 12px 16px;
    font-size: 14px;
    min-height: 44px;
  }
  .admin-file-upload {
    flex-wrap: wrap;
    gap: 12px;
    padding: 16px;
  }
  .admin-file-preview {
    width: 56px;
    height: 56px;
  }

  /* ---- AUTHOR CARDS ---- */
  .admin-body .admin-author-card {
    padding: 16px 18px;
    gap: 14px;
    border-radius: 18px;
  }
  .admin-body .admin-author-name {
    font-size: 15px;
  }
  .admin-body .admin-author-meta span {
    font-size: 13px;
  }
  .admin-body .admin-author-avatar {
    width: 44px;
    height: 44px;
    flex-basis: 44px;
    font-size: 18px;
  }

  /* ---- STUDENT HISTORY ---- */
  .student-history-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  /* ---- NOTIFICATIONS DROPDOWN ---- */
  .admin-body .admin-notif-dropdown {
    width: calc(100vw - 28px);
    right: 14px;
    top: calc(100% + 8px);
    border-radius: 20px;
  }
  .admin-body .admin-notif-header {
    padding: 16px;
  }
  .admin-body .admin-notif-item {
    padding: 14px 16px;
  }

  /* ---- CONFIRM MODAL ---- */
  .admin-body .admin-confirm-card {
    padding: 28px 24px;
    border-radius: 22px;
    width: min(100%, 380px);
  }
  .admin-body .admin-confirm-card h2 {
    font-size: 22px;
  }
  .admin-body .admin-confirm-actions button {
    min-height: 46px;
    font-size: 14px;
    padding: 0 22px;
    border-radius: 14px;
  }

  /* ---- COMBOBOX ---- */
  .admin-combo-options,
  .admin-student-options {
    max-height: 240px;
    font-size: 15px;
  }
  .admin-combo-option,
  .admin-student-option {
    padding: 14px 16px;
    font-size: 15px;
  }
  .admin-combo-search {
    height: 50px;
    font-size: 16px;
  }
  .admin-combo-toggle {
    width: 36px;
    height: 36px;
    top: 7px;
    right: 7px;
  }
}

/* ========== SMALL PHONES (<= 480px) ========= */
@media (max-width: 480px) {
  .admin-body .admin-content {
    padding: 16px 12px;
    gap: 14px;
  }
  .admin-body .admin-module-toolbar {
    padding: 14px;
    gap: 12px;
  }
  .admin-body .admin-module-toolbar .admin-list-head h2 {
    font-size: 19px;
  }
  .admin-body .admin-stats {
    gap: 10px;
  }
  .admin-body .admin-stats strong {
    font-size: 26px;
  }
  .admin-body .admin-stats article {
    padding: 14px 12px;
  }
  .admin-body .cec-admin-table tbody tr {
    padding: 16px 14px;
    gap: 6px;
  }
  .admin-body .admin-grade-grid {
    gap: 10px;
  }
  .admin-body .admin-grade-card {
    min-height: 100px;
    padding: 16px;
  }
  .admin-body .admin-grade-card strong {
    font-size: 28px;
  }
  .admin-body .admin-quick-actions {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
  .admin-body .admin-qa-btn {
    min-height: 72px;
  }
  .admin-body .admin-mobile-menu-button {
    width: 40px;
    height: 40px;
    flex-basis: 40px;
  }
  .admin-body .admin-pagination {
    padding: 14px;
    gap: 10px;
  }
  .admin-body .admin-small-button {
    font-size: 12px;
    padding: 10px 16px;
    min-height: 38px;
  }
}

/* ========== VERY SMALL (<= 360px) ========= */
@media (max-width: 360px) {
  .admin-body .admin-stats {
    grid-template-columns: 1fr;
  }
  .admin-body .admin-grade-grid {
    grid-template-columns: 1fr;
  }
  .admin-body .admin-quick-actions {
    grid-template-columns: 1fr 1fr;
  }
  .admin-body .admin-student-summary {
    grid-template-columns: 1fr;
  }
  .admin-body .admin-topbar > div:first-child strong {
    font-size: 16px;
  }
}