/* ============================================================
   POSTGRADO USIP — Custom UI Improvements
   Mejoras visuales sin tocar funcionalidad
   ============================================================ */

/* ── Variables de color ──────────────────────────────────── */
:root {
  --green-dark:    #0C3F0F;
  --green-primary: #1B6B3A;
  --green-mid:     #2E9E58;
  --green-light:   #e8f5ed;
  --green-hover:   #d4edda;
  --accent-blue:   #1a73e8;
  --text-main:     #212529;
  --text-muted:    #6c757d;
  --border-color:  #dee2e6;
  --shadow-sm:     0 1px 4px rgba(0,0,0,.08);
  --shadow-md:     0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:     0 8px 32px rgba(0,0,0,.12);
  --radius-sm:     6px;
  --radius-md:     10px;
  --radius-lg:     14px;
}

/* ── Reset / Base ────────────────────────────────────────── */
body {
  font-family: 'Ubuntu', 'Nunito', sans-serif;
  font-size: .925rem;
  color: var(--text-main);
  background-color: #f0f4f1;
}

a {
  color: var(--green-primary);
  text-decoration: none;
  transition: color .18s ease;
}
a:hover { color: var(--green-mid); }

/* ── Navbar ──────────────────────────────────────────────── */
.navbar {
  padding: .45rem 1rem !important;
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
  border-bottom: 2px solid rgba(255,255,255,.08);
}
.navbar .navbar-brand { padding: 0; }

.navbar .nav-link.disabled {
  color: rgba(255,255,255,.65) !important;
  font-size: .8rem;
  letter-spacing: .01em;
}
.navbar .nav-link.disabled .text-danger {
  color: #ff8a80 !important;
}
.navbar .badge.bg-light {
  background-color: rgba(255,255,255,.18) !important;
  color: #fff !important;
  border: 1px solid rgba(255,255,255,.3);
  font-weight: 600;
  font-size: .72rem;
  letter-spacing: .04em;
  padding: .35em .75em;
  border-radius: 20px;
}
.navbar .dropdown-toggle {
  color: rgba(255,255,255,.9) !important;
  font-weight: 500;
  font-size: .88rem;
}
.navbar .dropdown-menu {
  border: none;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: .4rem 0;
  min-width: 180px;
}
.navbar .dropdown-item {
  font-size: .875rem;
  padding: .55rem 1.1rem;
  color: var(--text-main);
  transition: background .15s ease;
}
.navbar .dropdown-item:hover {
  background-color: var(--green-light);
  color: var(--green-primary);
}
.navbar .dropdown-item i { font-size: .9rem; }

/* ── Sidebar ─────────────────────────────────────────────── */
.border-rt-e6 {
  background: linear-gradient(180deg, rgba(255,255,255,.97) 0%, rgba(240,248,242,.97) 100%) !important;
  border-right: 1px solid #c8dece !important;
  position: sticky;
  top: 56px;
  height: calc(100vh - 56px);
  overflow-y: auto;
  align-self: flex-start;
  box-shadow: 2px 0 8px rgba(27,107,58,.06);
}

/* Nav items */
.border-rt-e6 .nav-link {
  color: #145A28;
  font-size: .84rem;
  font-weight: 500;
  padding: .55rem .85rem;
  border-radius: var(--radius-sm);
  margin: 1px 6px;
  transition: all .18s ease;
  border: 1px solid transparent;
}
.border-rt-e6 .nav-link:hover {
  background-color: var(--green-hover);
  color: var(--green-primary);
  border-color: #b8d9c2;
}
.border-rt-e6 .nav-link.active {
  background: linear-gradient(135deg, #1B6B3A 0%, #2E9E58 100%) !important;
  color: #fff !important;
  border-color: transparent;
  box-shadow: 0 2px 8px rgba(27,107,58,.28);
  font-weight: 600;
}
.border-rt-e6 .nav-link i {
  font-size: .95rem;
  width: 18px;
  text-align: center;
}

/* Submenus */
.border-rt-e6 .nav.collapse,
.border-rt-e6 .nav.show {
  border: none !important;
  background-color: rgba(27,107,58,.04);
  border-radius: var(--radius-sm);
  margin: 2px 6px;
}
.border-rt-e6 .nav.collapse .nav-link,
.border-rt-e6 .nav.show .nav-link {
  font-size: .8rem;
  font-weight: 400;
  padding: .42rem .85rem .42rem 1.6rem;
  color: var(--text-muted);
  margin: 0;
  border-radius: 0;
}
.border-rt-e6 .nav.collapse .nav-link:hover,
.border-rt-e6 .nav.show .nav-link:hover {
  background-color: var(--green-hover);
  color: var(--green-primary);
  border-radius: var(--radius-sm);
}

/* Active submenu item */
.border-rt-e6 .nav-item[style*="font-weight:bold"] .nav-link,
.border-rt-e6 .nav.collapse .nav-link:focus {
  color: var(--green-primary) !important;
  font-weight: 600 !important;
}

/* ── Main content wrapper ────────────────────────────────── */
main .container > .row > [class*="col-lg-10"] {
  padding-left: 1.5rem;
  padding-right: 1rem;
}

/* ── Page titles ─────────────────────────────────────────── */
.display-6 {
  font-size: 1.5rem !important;
  font-weight: 700 !important;
  color: var(--green-dark);
  letter-spacing: -.01em;
  margin-bottom: .5rem !important;
}
.display-6 i {
  color: var(--green-primary);
  font-size: 1.3rem;
}
h1, h2, h3, h4, h5, h6 {
  color: var(--green-dark);
  font-weight: 700;
}
h6 { color: var(--text-muted); font-weight: 600; }

/* ── Breadcrumbs ─────────────────────────────────────────── */
.breadcrumb {
  background: transparent;
  padding: 0;
  margin-bottom: 1.1rem;
  font-size: .8rem;
}
.breadcrumb-item a { color: var(--green-primary); font-weight: 500; }
.breadcrumb-item.active { color: var(--text-muted); }
.breadcrumb-item + .breadcrumb-item::before { color: #adb5bd; }

/* ── Session messages / alerts ───────────────────────────── */
.text-success:has(i.bi-exclamation-diamond-fill),
p.text-success {
  background-color: #d4edda;
  border: 1px solid #b8dcc6;
  border-left: 4px solid #28a745;
  color: #155724 !important;
  padding: .65rem 1rem;
  border-radius: var(--radius-sm);
  font-size: .875rem;
  margin-bottom: .75rem;
}
p.text-danger {
  background-color: #f8d7da;
  border: 1px solid #f1b8bc;
  border-left: 4px solid #dc3545;
  color: #721c24 !important;
  padding: .65rem 1rem;
  border-radius: var(--radius-sm);
  font-size: .875rem;
  margin-bottom: .75rem;
}

/* ── Cards ───────────────────────────────────────────────── */
.card {
  border: 1px solid #dce8e1;
  border-radius: var(--radius-md) !important;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s ease;
}
.card:hover { box-shadow: var(--shadow-md); }

.card-header {
  background-color: #fff !important;
  border-bottom: 1px solid #dce8e1;
  font-weight: 600;
  font-size: .875rem;
  color: var(--green-dark);
  padding: .75rem 1rem;
  border-radius: var(--radius-md) var(--radius-md) 0 0 !important;
}
.card-header i { color: var(--green-primary); }

.card-body { padding: 1rem 1.1rem; }

/* Dashboard stat cards */
.dashboard .card {
  border: none;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-md);
  transition: transform .2s ease, box-shadow .2s ease;
}
.dashboard .card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.dashboard .card-body {
  padding: 1.1rem 1.3rem;
}
.dashboard .fw-bold {
  font-size: .9rem;
  font-weight: 600 !important;
  opacity: .92;
}
/* Stat cards with gradient background — text always white */
.dashboard .dashboard-stat-card .fw-bold,
.dashboard .dashboard-stat-card i {
  color: #fff;
  opacity: 1;
}

/* Welcome card */
.bg-dark.rounded-6 {
  background: linear-gradient(135deg, var(--green-dark) 0%, var(--green-primary) 100%) !important;
  border-radius: var(--radius-md) !important;
  padding: 1.1rem 1.4rem !important;
  box-shadow: var(--shadow-md);
}
.bg-dark.rounded-6 h3 {
  color: #fff;
  font-size: 1.15rem;
  margin: 0;
  font-weight: 600;
}

/* ── Progress bar ────────────────────────────────────────── */
.progress {
  height: 22px;
  border-radius: 20px;
  background-color: #e9ecef;
  box-shadow: inset 0 1px 3px rgba(0,0,0,.1);
  overflow: hidden;
}
.progress-bar {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .04em;
}

/* ── Tables ──────────────────────────────────────────────── */
.table {
  font-size: .855rem;
  color: var(--text-main);
  margin-bottom: 0;
}

/* ── Sticky actions column (.actions-col) ────────────────── */
/*
  Uso: añadir class="actions-col" al <th> y a cada <td> de la
  columna de acciones. Requiere que la tabla esté dentro de un
  <div class="table-responsive"> para que el sticky funcione.
*/
.usiptable .actions-col {
  position: sticky;
  right: 0;
  z-index: 1;
  white-space: nowrap;
  box-shadow: -3px 0 6px rgba(0, 0, 0, .07);
}
/* Header sticky — mantiene el gradiente verde */
.usiptable thead .actions-col {
  z-index: 2;
  background: linear-gradient(135deg, #1B6B3A 0%, #2E9E58 100%) !important;
}
/* Celdas de datos: hereda el color de fila correcto */
.usiptable tbody .actions-col {
  background-color: #fff;
}
.usiptable tbody tr:nth-child(even) .actions-col {
  background-color: #f7fbf8;
}
.usiptable tbody tr:hover .actions-col {
  background-color: var(--green-light) !important;
}
.usiptable tbody tr.selected .actions-col {
  background-color: #cce8ff !important;
}

/* Solo encabezados (thead) en verde — no afecta th[scope="row"] en tbody */
.table thead th,
table.dataTable thead th,
table.dataTable thead th.sorting,
table.dataTable thead th.sorting_asc,
table.dataTable thead th.sorting_desc,
table.dataTable thead th.sorting_asc_disabled,
table.dataTable thead th.sorting_desc_disabled {
  font-size: .78rem !important;
  font-weight: 700 !important;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: #fff !important;
  background: linear-gradient(135deg, #1B6B3A 0%, #2E9E58 100%) !important;
  border-color: #2E9E58 !important;
  padding: .65rem .85rem !important;
  white-space: nowrap;
}

/* Celdas th[scope="row"] en tbody — etiqueta sutil, sin verde */
.table tbody th[scope="row"] {
  background-color: #f2f8f4;
  color: #145A28;
  font-weight: 600;
  font-size: .845rem;
  text-transform: none;
  letter-spacing: 0;
  padding: .6rem .85rem;
  white-space: nowrap;
  border-color: #e4efe8;
}

/* Icono de sorting usando pseudo-elemento */
table.dataTable thead th.sorting::after,
table.dataTable thead th.sorting_asc::after,
table.dataTable thead th.sorting_desc::after {
  font-family: "bootstrap-icons";
  font-size: .7rem;
  margin-left: .4rem;
  opacity: .75;
}
table.dataTable thead th.sorting::after        { content: "\F127"; /* bi-arrow-down-up */ }
table.dataTable thead th.sorting_asc::after    { content: "\F148"; /* bi-sort-up */ color: #b8f5d0; opacity: 1; }
table.dataTable thead th.sorting_desc::after   { content: "\F146"; /* bi-sort-down */ color: #b8f5d0; opacity: 1; }
.table td {
  padding: .6rem .85rem;
  vertical-align: middle;
  border-color: #e8f0ea;
}
.table tbody tr {
  transition: background-color .12s ease;
}
.table tbody tr:hover {
  background-color: var(--green-light) !important;
}
.table tbody tr:nth-child(even) {
  background-color: #f7fbf8;
}
/* Fix: no white stripes on hover */
.table tbody tr:nth-child(even):hover {
  background-color: var(--green-light) !important;
}

/* Table container */
.bg-white.border.shadow-sm.p-3 {
  border-radius: var(--radius-md) !important;
  border-color: #dce8e1 !important;
  box-shadow: var(--shadow-md) !important;
  padding: 1.25rem !important;
  overflow-x: auto;
}
.table-responsive {
  border-radius: var(--radius-sm);
}

/* Selected row (payment table) */
.selected {
  background-color: #cce8ff !important;
}
.selected:hover {
  background-color: #b8dfff !important;
}

/* ── DataTables override ─────────────────────────────────── */
.dataTables_wrapper {
  font-size: .855rem;
}
.dataTables_wrapper .dataTables_filter input {
  border: 1px solid #c8dece;
  border-radius: var(--radius-sm);
  padding: .35rem .7rem;
  font-size: .83rem;
  color: var(--text-main);
  background-color: #fff;
  transition: border-color .2s, box-shadow .2s;
  outline: none;
}
.dataTables_wrapper .dataTables_filter input:focus {
  border-color: var(--green-primary);
  box-shadow: 0 0 0 3px rgba(27,107,58,.12);
}
.dataTables_wrapper .dataTables_filter label {
  font-weight: 600;
  color: var(--text-muted);
  font-size: .8rem;
}
.dataTables_wrapper .dataTables_length select {
  border: 1px solid #c8dece;
  border-radius: var(--radius-sm);
  padding: .25rem .5rem;
  font-size: .83rem;
}
.dataTables_wrapper .dataTables_length label {
  font-weight: 600;
  color: var(--text-muted);
  font-size: .8rem;
}
.dataTables_wrapper .dataTables_info {
  font-size: .78rem;
  color: var(--text-muted);
  padding-top: .75rem !important;
}
.dataTables_wrapper .dataTables_paginate .paginate_button {
  border-radius: var(--radius-sm) !important;
  font-size: .8rem !important;
  padding: .3rem .7rem !important;
  margin: 0 1px;
  border: 1px solid transparent !important;
  color: var(--green-primary) !important;
  transition: all .15s ease;
}
.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
  background: var(--green-light) !important;
  border-color: #b8d9c2 !important;
  color: var(--green-primary) !important;
}
.dataTables_wrapper .dataTables_paginate .paginate_button.current,
.dataTables_wrapper .dataTables_paginate .paginate_button.current:hover {
  background: linear-gradient(135deg, #1B6B3A 0%, #2E9E58 100%) !important;
  border-color: #2E9E58 !important;
  color: #fff !important;
  font-weight: 700;
}
/* Export buttons */
.dt-buttons .dt-button {
  background: linear-gradient(135deg, #f8faf9 0%, #eef4f0 100%);
  border: 1px solid #c8dece !important;
  border-radius: var(--radius-sm) !important;
  color: var(--green-primary) !important;
  font-size: .78rem !important;
  font-weight: 600;
  padding: .35rem .85rem !important;
  margin-right: 4px;
  transition: all .18s ease;
  box-shadow: var(--shadow-sm);
}
.dt-buttons .dt-button:hover {
  background: linear-gradient(135deg, var(--green-primary) 0%, var(--green-mid) 100%) !important;
  color: #fff !important;
  border-color: var(--green-primary) !important;
  box-shadow: var(--shadow-md);
}

/* ── Forms ───────────────────────────────────────────────── */
.form-control,
.form-select {
  font-size: .875rem;
  border: 1px solid #c8d8ce;
  border-radius: var(--radius-sm);
  padding: .45rem .8rem;
  color: var(--text-main);
  background-color: #fff;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.form-control:focus,
.form-select:focus {
  border-color: var(--green-primary);
  box-shadow: 0 0 0 3px rgba(27,107,58,.13);
  outline: none;
}
.form-control::placeholder { color: #adb5bd; font-size: .83rem; }
.form-label {
  font-size: .8rem;
  font-weight: 600;
  color: #495057;
  margin-bottom: .3rem;
}
.form-label sup { color: #e74c3c; font-size: .7rem; }

/* Inline form sections (enrollment bar) */
[style*="background-color: #a0aec0"] {
  background: linear-gradient(135deg, #e8f0ea 0%, #d4e8db 100%) !important;
  border: 1px solid #b8d9c2;
  border-radius: var(--radius-md);
  padding: .9rem 1rem !important;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  font-size: .845rem;
  font-weight: 600;
  padding: .42rem .95rem;
  border-radius: var(--radius-sm);
  transition: all .18s ease;
  letter-spacing: .01em;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: linear-gradient(135deg, #1565c0 0%, #1976d2 100%);
  border-color: #1565c0;
  box-shadow: 0 2px 6px rgba(21,101,192,.28);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #0d47a1 0%, #1565c0 100%);
  border-color: #0d47a1;
  box-shadow: 0 4px 12px rgba(21,101,192,.35);
  transform: translateY(-1px);
}
.btn-success {
  background: linear-gradient(135deg, var(--green-primary) 0%, var(--green-mid) 100%);
  border-color: var(--green-primary);
  box-shadow: 0 2px 6px rgba(27,107,58,.28);
}
.btn-success:hover {
  background: linear-gradient(135deg, var(--green-dark) 0%, var(--green-primary) 100%);
  border-color: var(--green-dark);
  box-shadow: 0 4px 12px rgba(27,107,58,.35);
  transform: translateY(-1px);
}
.btn-outline-primary {
  color: #1565c0;
  border-color: #1976d2;
  font-weight: 600;
}
.btn-outline-primary:hover {
  background-color: #1565c0;
  border-color: #1565c0;
}
.btn-outline-success {
  color: var(--green-primary);
  border-color: var(--green-primary);
  font-weight: 600;
}
.btn-outline-success:hover {
  background-color: var(--green-primary);
  border-color: var(--green-primary);
}
.btn-sm {
  font-size: .775rem;
  padding: .28rem .7rem;
  border-radius: 4px;
}

/* Button groups */
.btn-group .btn { margin-right: 0; }
.btn-group .btn + .btn { border-left: 1px solid rgba(255,255,255,.2); }

/* ── Badges ──────────────────────────────────────────────── */
.badge {
  font-size: .73rem;
  font-weight: 600;
  padding: .35em .65em;
  border-radius: 6px;
  letter-spacing: .02em;
}
.badge.bg-dark { background: #145A28 !important; }
.badge.rounded-pill { border-radius: 20px !important; }

/* Payment status inline badges */
tr[style*="color: green"] td:first-child::before,
tr[style*="color: rgb(0, 128, 0)"] td:first-child::before { content: ''; }

/* ── Select2 override ────────────────────────────────────── */
.select2-container--default .select2-selection--single {
  height: calc(1.5em + .9rem + 2px) !important;
  border: 1px solid #c8d8ce !important;
  border-radius: var(--radius-sm) !important;
  background-color: #fff;
  transition: border-color .2s, box-shadow .2s;
}
.select2-container--default.select2-container--focus .select2-selection--single,
.select2-container--default.select2-container--open .select2-selection--single {
  border-color: var(--green-primary) !important;
  box-shadow: 0 0 0 3px rgba(27,107,58,.13) !important;
  outline: none;
}
.select2-container--default .select2-selection--single .select2-selection__rendered {
  line-height: calc(1.5em + .9rem) !important;
  padding-left: .8rem !important;
  font-size: .875rem;
  color: var(--text-main);
}
.select2-container--default .select2-selection--single .select2-selection__arrow {
  height: calc(1.5em + .9rem) !important;
  right: 8px;
}
.select2-dropdown {
  border: 1px solid #c8d8ce !important;
  border-radius: var(--radius-sm) !important;
  box-shadow: var(--shadow-md) !important;
}
.select2-container--default .select2-results__option--highlighted[aria-selected] {
  background-color: var(--green-primary) !important;
}
.select2-container--default .select2-search--dropdown .select2-search__field {
  border: 1px solid #c8d8ce;
  border-radius: 4px;
  padding: .35rem .6rem;
  font-size: .83rem;
}

/* ── Accordion (notices) ─────────────────────────────────── */
.accordion-button {
  font-size: .845rem;
  font-weight: 600;
  color: var(--green-dark);
  background-color: #f7fbf8;
  padding: .7rem 1rem;
}
.accordion-button:not(.collapsed) {
  color: #fff;
  background: linear-gradient(135deg, var(--green-primary) 0%, var(--green-mid) 100%);
  box-shadow: none;
}
.accordion-button:focus { box-shadow: none; }
.accordion-button::after {
  filter: brightness(0.3);
}
.accordion-button:not(.collapsed)::after {
  filter: brightness(10);
}
.accordion-body {
  font-size: .845rem;
  padding: .85rem 1rem;
  color: var(--text-main);
  line-height: 1.6;
}
.accordion-item {
  border-color: #dce8e1;
}

/* ── Footer ──────────────────────────────────────────────── */
footer, .border-top-e6:last-child {
  margin-top: 2rem;
  padding-top: .75rem !important;
  font-size: .78rem;
  color: #adb5bd;
}

/* ── HR divider ──────────────────────────────────────────── */
hr {
  border-color: #dce8e1;
  opacity: .6;
  margin: 1rem 0;
}

/* ── Utility: section filter bar ────────────────────────── */
.mb-4.mt-4 > form.row {
  background-color: #fff;
  border: 1px solid #dce8e1;
  border-radius: var(--radius-md);
  padding: .75rem .85rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.25rem !important;
  align-items: center;
}
.mb-4.mt-4 > form.row .btn { align-self: center; }

/* ── Watermark ───────────────────────────────────────────── */
#watermark {
  opacity: .10;
}

/* ── Scrollbar (WebKit) ──────────────────────────────────── */
::-webkit-scrollbar { width: 7px; height: 7px; }
::-webkit-scrollbar-track { background: #f0f4f1; }
::-webkit-scrollbar-thumb {
  background: #b8d9c2;
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover { background: var(--green-primary); }

/* ── Cell truncation (nombres de programa largos) ───────── */
.cell-truncate {
  max-width: 280px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: default;
}

/* ── container-xxl / container-fluid sidebar fix ────────── */
.container-xxl > .row > [class*="col-lg-10"],
.container-fluid > .row > [class*="col-lg-10"] {
  padding-left: 1.5rem;
  padding-right: 1rem;
}

/* ── Responsive adjustments ──────────────────────────────── */
@media (max-width: 991.98px) {
  .border-rt-e6 {
    min-height: unset;
    background: linear-gradient(180deg, rgba(255,255,255,.98) 0%, rgba(240,248,242,.98) 100%) !important;
  }
  .display-6 { font-size: 1.25rem !important; }
}
@media (max-width: 767.98px) {
  .dataTables_wrapper .dataTables_filter,
  .dataTables_wrapper .dataTables_length {
    text-align: left;
  }
  .dt-buttons { margin-bottom: .5rem; }
}