/* ── Light Theme (default) ────────────────────── */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --accent: #f97316;
  --secondary: #64748b;
  --success: #16a34a;
  --danger: #dc2626;
  --warning: #f59e0b;
  --info: #0891b2;

  --bg-gradient: linear-gradient(135deg, #e0e7ff 0%, #f1f5f9 40%, #ede9fe 100%);
  --bg-body: #f1f5f9;
  --surface: rgba(255,255,255,.55);
  --surface-solid: #ffffff;
  --surface-hover: rgba(255,255,255,.75);
  --glass-border: rgba(255,255,255,.45);
  --glass-shadow: 0 8px 32px rgba(0,0,0,.06);

  --text: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  --navbar-bg: rgba(37,99,235,.92);
  --navbar-text: #ffffff;

  --card-bg: rgba(255,255,255,.5);
  --card-border: rgba(255,255,255,.5);
  --card-header-bg: rgba(37,99,235,.08);

  --tab-bg: rgba(255,255,255,.4);
  --tab-active-bg: rgba(37,99,235,.12);

  --input-bg: rgba(255,255,255,.6);
  --input-border: rgba(203,213,225,.6);
  --input-focus: rgba(37,99,235,.25);

  --table-bg: rgba(255,255,255,.45);
  --table-stripe: rgba(37,99,235,.03);
  --table-header-bg: rgba(30,41,59,.9);
  --table-header-text: #f8fafc;
  --table-border: rgba(203,213,225,.5);

  --modal-bg: rgba(255,255,255,.85);
  --modal-backdrop: rgba(15,23,42,.4);

  --list-bg: rgba(255,255,255,.35);
  --list-border: rgba(203,213,225,.4);
  --list-hover: rgba(37,99,235,.05);

  --badge-light-bg: rgba(37,99,235,.1);
  --badge-light-text: #2563eb;

  --scrollbar-track: rgba(0,0,0,.05);
  --scrollbar-thumb: rgba(0,0,0,.15);
}

/* ── Dark Theme ───────────────────────────────── */
[data-theme="dark"] {
  --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e1b4b 40%, #0f172a 100%);
  --bg-body: #0f172a;
  --surface: rgba(30,41,59,.55);
  --surface-solid: #1e293b;
  --surface-hover: rgba(30,41,59,.75);
  --glass-border: rgba(255,255,255,.08);
  --glass-shadow: 0 8px 32px rgba(0,0,0,.3);

  --text: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-inverse: #0f172a;

  --navbar-bg: rgba(15,23,42,.88);
  --navbar-text: #f1f5f9;

  --card-bg: rgba(30,41,59,.5);
  --card-border: rgba(255,255,255,.07);
  --card-header-bg: rgba(37,99,235,.15);

  --tab-bg: rgba(30,41,59,.4);
  --tab-active-bg: rgba(37,99,235,.2);

  --input-bg: rgba(30,41,59,.5);
  --input-border: rgba(71,85,105,.5);
  --input-focus: rgba(37,99,235,.35);

  --table-bg: rgba(30,41,59,.4);
  --table-stripe: rgba(37,99,235,.06);
  --table-header-bg: rgba(30,41,59,.9);
  --table-header-text: #f1f5f9;
  --table-border: rgba(71,85,105,.3);

  --modal-bg: rgba(30,41,59,.85);
  --modal-backdrop: rgba(0,0,0,.6);

  --list-bg: rgba(30,41,59,.35);
  --list-border: rgba(71,85,105,.3);
  --list-hover: rgba(37,99,235,.1);

  --badge-light-bg: rgba(37,99,235,.2);
  --badge-light-text: #93c5fd;

  --scrollbar-track: rgba(255,255,255,.05);
  --scrollbar-thumb: rgba(255,255,255,.15);
}

/* ── Base ─────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

body {
  background: var(--bg-gradient);
  background-attachment: fixed;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--text);
  min-height: 100vh;
  transition: background .4s, color .4s;
}

body::before {
  content: '';
  position: fixed;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37,99,235,.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(249,115,22,.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

/* ── Glass Mixin ──────────────────────────────── */
.glass {
  background: var(--surface);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/* ── Navbar ───────────────────────────────────── */
.vc-navbar {
  background: var(--navbar-bg) !important;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255,255,255,.1);
  padding: .6rem 0;
  z-index: 1030;
  position: sticky;
  top: 0;
}

.vc-navbar .navbar-brand {
  color: var(--navbar-text) !important;
  font-weight: 700;
  font-size: 1.1rem;
}

.vc-navbar .brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent), #ef4444);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
}

.vc-navbar .user-info {
  color: rgba(255,255,255,.85);
  font-size: .875rem;
}

.vc-navbar .user-badge {
  background: rgba(255,255,255,.2);
  color: white;
  padding: .2rem .6rem;
  border-radius: 6px;
  font-size: .75rem;
  font-weight: 600;
  margin-left: .5rem;
}

.vc-navbar .btn-logout {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  color: white;
  border-radius: 8px;
  padding: .4rem .9rem;
  font-size: .8rem;
  font-weight: 500;
  transition: all .2s;
}

.vc-navbar .btn-logout:hover {
  background: rgba(255,255,255,.22);
  color: white;
}

/* ── Theme Toggle ─────────────────────────────── */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.2);
  background: rgba(255,255,255,.12);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1rem;
  transition: all .3s;
  margin-right: .75rem;
}

.theme-toggle:hover {
  background: rgba(255,255,255,.22);
  transform: rotate(20deg);
}

/* ── Main Container ───────────────────────────── */
.vc-main {
  position: relative;
  z-index: 1;
  padding: 1.5rem;
  max-width: 1400px;
  margin: 0 auto;
}

/* ── Tabs ─────────────────────────────────────── */
.vc-tabs {
  display: flex;
  gap: .5rem;
  padding: .35rem;
  background: var(--tab-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  margin-bottom: 1.5rem;
  width: fit-content;
}

.vc-tab {
  padding: .6rem 1.25rem;
  border-radius: 10px;
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: all .2s;
  border: none;
  background: transparent;
  display: flex;
  align-items: center;
  gap: .5rem;
}

.vc-tab:hover {
  color: var(--primary);
  background: var(--list-hover);
}

.vc-tab.active {
  background: var(--tab-active-bg);
  color: var(--primary);
  font-weight: 600;
}

/* ── Section Header ───────────────────────────── */
.vc-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}

.vc-section-header h4 {
  font-weight: 700;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  gap: .5rem;
  margin: 0;
}

/* ── Grupo Cards ──────────────────────────────── */
.vc-grupo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
}

.vc-grupo-card {
  background: var(--surface);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 1.25rem;
  cursor: pointer;
  transition: all .3s ease;
  position: relative;
  overflow: hidden;
}

.vc-grupo-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity .3s;
}

.vc-grupo-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(37,99,235,.12);
  border-color: rgba(37,99,235,.3);
}

.vc-grupo-card:hover::before { opacity: 1; }

.vc-grupo-logo {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), #7c3aed);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.1rem;
  font-weight: 700;
  flex-shrink: 0;
}

.vc-grupo-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 14px;
}

.vc-grupo-card h5 {
  font-weight: 600;
  font-size: 1rem;
  margin: 0 0 .15rem;
}

.vc-grupo-card .vc-admin-name {
  font-size: .8rem;
  color: var(--text-muted);
}

/* ── Detail Panel ─────────────────────────────── */
.vc-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 768px) {
  .vc-detail-grid { grid-template-columns: 1fr; }
}

.vc-panel-card {
  background: var(--surface);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  overflow: hidden;
}

.vc-panel-card-header {
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: .5rem;
  font-weight: 600;
  font-size: .9rem;
  border-bottom: 1px solid var(--list-border);
}

.vc-panel-card-body {
  padding: 1rem 1.25rem;
}

/* ── List Items ───────────────────────────────── */
.vc-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .7rem .85rem;
  border-radius: 10px;
  margin-bottom: .4rem;
  background: var(--list-bg);
  border: 1px solid var(--list-border);
  transition: all .2s;
}

.vc-list-item:hover {
  background: var(--list-hover);
  border-color: var(--primary);
}

.vc-list-item-info { flex: 1; }

.vc-list-item-info strong {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: .9rem;
}

.vc-list-item-info .vc-sub {
  font-size: .8rem;
  color: var(--text-muted);
  margin-top: .15rem;
}

.vc-nivel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.vc-list-actions {
  display: flex;
  gap: .35rem;
}

/* ── Horario Item ─────────────────────────────── */
.vc-horario-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .65rem .85rem;
  border-radius: 10px;
  margin-bottom: .4rem;
  background: var(--list-bg);
  border: 1px solid var(--list-border);
  font-size: .875rem;
  transition: all .2s;
}

.vc-horario-item:hover {
  background: var(--list-hover);
}

.vc-horario-item .vc-dia {
  min-width: 85px;
}

.vc-horario-item .vc-time {
  font-weight: 600;
}

.vc-horario-item .vc-campo-label {
  margin-left: auto;
  font-size: .8rem;
  color: var(--text-muted);
}

/* ── Buttons ──────────────────────────────────── */
.btn {
  font-weight: 500;
  border-radius: 10px;
  transition: all .2s;
}

.btn-glass {
  background: var(--surface);
  backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  color: var(--text);
  padding: .5rem 1rem;
  font-size: .875rem;
  border-radius: 10px;
  transition: all .2s;
}

.btn-glass:hover {
  background: var(--surface-hover);
  border-color: var(--primary);
  color: var(--primary);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
  border: none !important;
  box-shadow: 0 4px 12px rgba(37,99,235,.25);
}

.btn-primary:hover {
  box-shadow: 0 6px 20px rgba(37,99,235,.35);
  transform: translateY(-1px);
}

.btn-success {
  background: linear-gradient(135deg, var(--success), #15803d) !important;
  border: none !important;
}

.btn-warning {
  background: linear-gradient(135deg, var(--warning), #d97706) !important;
  border: none !important;
  color: white !important;
}

.btn-danger {
  background: linear-gradient(135deg, var(--danger), #b91c1c) !important;
  border: none !important;
}

.btn-outline-secondary {
  border: 1px solid var(--input-border) !important;
  color: var(--text-secondary) !important;
  background: transparent !important;
}

.btn-outline-secondary:hover {
  background: var(--list-hover) !important;
  border-color: var(--primary) !important;
  color: var(--primary) !important;
}

.btn-sm {
  padding: .35rem .7rem;
  font-size: .8rem;
  border-radius: 8px;
}

/* ── Table ────────────────────────────────────── */
.vc-table-wrap {
  background: var(--surface);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  overflow: hidden;
}

.vc-table {
  margin: 0;
  color: var(--text);
  --bs-table-bg: transparent;
  --bs-table-color: var(--text);
  --bs-table-striped-bg: transparent;
  --bs-table-hover-bg: var(--table-stripe);
}

.vc-table thead th {
  background: var(--table-header-bg);
  color: var(--table-header-text);
  font-weight: 600;
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  border: none;
  padding: .85rem 1rem;
}

.vc-table tbody td {
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--table-border);
  vertical-align: middle;
}

.vc-table tbody tr {
  background: transparent;
  transition: background .15s;
}

.vc-table tbody tr:hover {
  background: var(--table-stripe);
}

.vc-table code {
  background: var(--badge-light-bg);
  color: var(--badge-light-text);
  padding: .15rem .45rem;
  border-radius: 6px;
  font-size: .82rem;
}

.vc-ubicacion-link {
  color: var(--primary);
  font-size: .8rem;
  text-decoration: none;
  margin-left: .5rem;
  opacity: .8;
  transition: opacity .2s;
}
.vc-ubicacion-link:hover { opacity: 1; text-decoration: underline; }

/* ── Modals ───────────────────────────────────── */
.modal-content {
  background: var(--modal-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  box-shadow: 0 24px 80px rgba(0,0,0,.15);
}

.modal-header {
  border-radius: 16px 16px 0 0;
  border-bottom: 1px solid var(--list-border);
}

.modal-footer {
  border-top: 1px solid var(--list-border);
}

.form-control, .form-select {
  background: var(--input-bg);
  backdrop-filter: blur(8px);
  border: 1px solid var(--input-border);
  border-radius: 10px;
  color: var(--text);
  transition: all .2s;
}

.form-control:focus, .form-select:focus {
  background: var(--input-bg);
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--input-focus);
  color: var(--text);
}

.form-label {
  font-weight: 500;
  font-size: .875rem;
  color: var(--text-secondary);
}

.form-check-input:checked {
  background-color: var(--primary);
  border-color: var(--primary);
}

/* ── Badges ───────────────────────────────────── */
.badge {
  font-weight: 500;
  font-size: .75rem;
  padding: .3rem .55rem;
  border-radius: 6px;
}

.bg-primary { background: var(--primary) !important; }
.bg-success { background: var(--success) !important; }
.bg-danger { background: var(--danger) !important; }
.bg-warning { background: var(--warning) !important; color: #000 !important; }
.bg-info { background: var(--info) !important; }
.bg-secondary { background: var(--secondary) !important; }

.text-primary { color: var(--primary) !important; }
.text-muted { color: var(--text-muted) !important; }

/* ── Toast ────────────────────────────────────── */
.toast-container { z-index: 1090; }

.toast {
  background: var(--surface-solid) !important;
  color: var(--text) !important;
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,.12);
}

.toast .toast-body { font-size: .875rem; }

/* ── Empty State ──────────────────────────────── */
.vc-empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}

.vc-empty i {
  font-size: 3rem;
  opacity: .3;
  margin-bottom: 1rem;
  display: block;
}

/* ── Spinner ──────────────────────────────────── */
.vc-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--input-border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  margin: 0 auto .75rem;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Scrollbar ────────────────────────────────── */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--scrollbar-track); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0,0,0,.25); }

/* ── Animations ───────────────────────────────── */
.vc-fade-in {
  animation: fadeUp .4s ease both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Login Page ───────────────────────────────── */
.login-page {
  background: var(--bg-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-container {
  width: 100%;
  max-width: 420px;
  padding: 1rem;
}

.login-card {
  background: var(--surface);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: 0 25px 60px rgba(0,0,0,.1);
}

.login-brand { text-align: center; margin-bottom: 2rem; }

.login-brand .brand-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--primary), #7c3aed);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  color: white;
  font-size: 2rem;
  box-shadow: 0 8px 24px rgba(37,99,235,.3);
}

.login-brand h1 { font-size: 1.5rem; font-weight: 700; margin-bottom: .25rem; }
.login-brand p { color: var(--text-muted); margin-bottom: 0; font-size: .9rem; }

/* ── Responsive ───────────────────────────────── */
@media (max-width: 768px) {
  .vc-main { padding: 1rem; }
  .vc-tabs { width: 100%; overflow-x: auto; }
  .vc-grupo-grid { grid-template-columns: 1fr; }
  .vc-section-header { flex-direction: column; gap: .75rem; align-items: flex-start; }
}