/* ============================================================
   TURNERO GIM — Global Stylesheet
   ============================================================ */

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --color-primary:     #3b82f6;
  --color-primary-dk:  #2563eb;
  --color-danger:      #ef4444;
  --color-success:     #22c55e;
  --color-warning:     #f59e0b;

  --bg-page:           #f1f5f9;
  --bg-card:           #ffffff;
  --bg-sidebar:        #1e293b;
  --bg-sidebar-hover:  #334155;

  --text-primary:      #1e293b;
  --text-secondary:    #64748b;
  --text-inverse:      #f8fafc;

  --border:            #e2e8f0;
  --border-radius:     8px;
  --sidebar-width:     240px;
  --topbar-height:     64px;
  --shadow:            0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
  --shadow-lg:         0 10px 25px rgba(0,0,0,.15);

  --font:  'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; }

body {
  font-family: var(--font);
  background: var(--bg-page);
  color: var(--text-primary);
  display: flex;
  min-height: 100vh;
}

body.api-loading {
  cursor: progress;
  overflow: hidden;
}

a { color: inherit; text-decoration: none; }

.global-api-loader {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  background: rgba(15, 23, 42, .35);
  backdrop-filter: blur(2px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease;
  z-index: 400;
  padding: 1rem;
}

.global-api-loader.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.global-api-loader-pill {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  background: rgba(15, 23, 42, .92);
  color: #f8fafc;
  border-radius: 999px;
  padding: .55rem .95rem;
  font-size: .82rem;
  font-weight: 600;
  box-shadow: 0 10px 25px rgba(2, 6, 23, .3);
}

.global-api-loader-spinner {
  width: .82rem;
  height: .82rem;
  border-radius: 999px;
  border: 2px solid rgba(248, 250, 252, .28);
  border-top-color: #f8fafc;
  animation: api-loader-spin .72s linear infinite;
}

.global-api-loader-progress {
  width: min(84vw, 320px);
  height: 3px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(148, 163, 184, .35);
}

.global-api-loader-progress::after {
  content: '';
  display: block;
  width: 45%;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #60a5fa 0%, #2563eb 100%);
  animation: api-loader-progress 1s ease-in-out infinite;
}

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

@keyframes api-loader-progress {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(250%); }
}

/* ── Auth page ──────────────────────────────────────────────── */
.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1e293b 0%, #3b82f6 100%);
}

.auth-card {
  background: var(--bg-card);
  padding: 2.5rem 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 420px;
}

.auth-logo {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-logo .logo-icon { font-size: 3rem; display: block; }
.auth-logo h1 { font-size: 1.6rem; font-weight: 700; margin: .4rem 0 .2rem; }
.auth-logo p  { color: var(--text-secondary); font-size: .9rem; }

/* ── Sidebar ────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  color: var(--text-inverse);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  z-index: 100;
  overflow: hidden;
}

.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, .45);
  backdrop-filter: blur(2px);
  z-index: 110;
  opacity: 0;
  pointer-events: none;
  transition: opacity .22s ease;
}

.mobile-nav-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  color: var(--text-primary);
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(15, 23, 42, .18);
  transition: transform .18s ease, background .18s ease, box-shadow .18s ease;
}

.mobile-nav-btn:hover {
  background: #f8fafc;
  transform: translateY(-1px);
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: 1.25rem 1rem;
  border-bottom: 1px solid #334155;
}

.logo-icon    { font-size: 1.8rem; }
.sidebar-title { font-weight: 700; font-size: 1.1rem; }

.nav-menu {
  list-style: none;
  padding: .75rem 0;
  flex: 1;
  min-height: 0;
  overflow-y: auto;
}

.nav-item a {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .7rem 1rem;
  border-radius: 6px;
  margin: 2px .5rem;
  font-size: .9rem;
  transition: background .15s;
  color: #cbd5e1;
}

.nav-item a:hover,
.nav-item.active a {
  background: var(--bg-sidebar-hover);
  color: #fff;
}

.sidebar-footer {
  padding: 1rem;
  border-top: 1px solid #334155;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: .85rem;
  color: #94a3b8;
  gap: .5rem;
  margin-top: auto;
}

#user-name {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Main content ───────────────────────────────────────────── */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: 1.5rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.topbar h2 { font-size: 1.4rem; font-weight: 700; }
.topbar-actions { display: flex; gap: .75rem; align-items: center; }

.pago-alumno-search {
  min-width: 0;
  width: 100%;
}

.modal .pago-alumno-search .alumno-search-results {
  max-height: min(44vh, 320px);
  z-index: 35;
}

/* ── Cards ──────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: .75rem;
  align-items: center;
  flex-wrap: wrap;
}

/* ── Stats grid ─────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--bg-card);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.stat-icon  { font-size: 2rem; }
.stat-info h3 { font-size: 1.75rem; font-weight: 700; }
.stat-info p  { font-size: .8rem; color: var(--text-secondary); }

/* ── Table ──────────────────────────────────────────────────── */
.table-wrapper { overflow-x: auto; }

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}

.table thead th {
  background: #f8fafc;
  padding: .75rem 1rem;
  text-align: left;
  font-weight: 600;
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

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

.table tbody tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: #f8fafc; }

/* ── Badges / status ────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: .2em .65em;
  border-radius: 99px;
  font-size: .75rem;
  font-weight: 600;
  text-transform: capitalize;
}

.badge-success  { background: #dcfce7; color: #166534; }
.badge-danger   { background: #fee2e2; color: #991b1b; }
.badge-warning  { background: #fef9c3; color: #854d0e; }
.badge-info     { background: #dbeafe; color: #1e40af; }
.badge-gray     { background: #f1f5f9; color: #475569; }

.actividad-cell {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
}

.actividad-dot {
  width: .7rem;
  height: .7rem;
  border-radius: 999px;
  flex: 0 0 auto;
  box-shadow: 0 0 0 2px rgba(15, 23, 42, .08);
}

.actividad-label {
  font-weight: 600;
}

.actividad-color-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
  text-transform: none;
  letter-spacing: normal;
}

/* ── Forms ──────────────────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  margin-bottom: 1rem;
}

.form-group label {
  font-size: .85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.info-tooltip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  margin-left: .35rem;
  border-radius: 999px;
  background: #dbeafe;
  color: #1d4ed8;
  font-size: .68rem;
  font-weight: 700;
  line-height: 1;
  cursor: help;
  vertical-align: middle;
}

.password-field {
  position: relative;
  display: flex;
  align-items: center;
}

.password-field input {
  padding-right: 2.55rem;
}

.password-toggle-btn {
  position: absolute;
  right: .5rem;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  color: var(--text-secondary);
  padding: .2rem;
}

.password-toggle-btn:hover {
  color: var(--text-primary);
}

.alumno-search {
  position: relative;
}

.alumno-search-results {
  position: absolute;
  top: calc(100% + .35rem);
  left: 0;
  right: 0;
  max-height: 240px;
  overflow-y: auto;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 10px 25px rgba(15, 23, 42, .15);
  z-index: 15;
}

.alumno-search-item {
  width: 100%;
  border: none;
  background: #fff;
  text-align: left;
  padding: .55rem .7rem;
  display: flex;
  flex-direction: column;
  gap: .12rem;
  cursor: pointer;
}

.alumno-search-item:hover {
  background: #f8fafc;
}

.alumno-search-name {
  font-weight: 600;
  color: var(--text-primary);
}

.alumno-search-meta {
  font-size: .78rem;
  color: var(--text-secondary);
}

.alumno-search-empty {
  padding: .7rem;
  font-size: .85rem;
  color: var(--text-secondary);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
input[type="date"],
input[type="time"],
input[type="search"],
select,
textarea {
  width: 100%;
  padding: .55rem .75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: .9rem;
  font-family: var(--font);
  background: #fff;
  color: var(--text-primary);
  transition: border-color .15s, box-shadow .15s;
  outline: none;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59,130,246,.15);
}

.input-search { min-width: 240px; }
.input-date   { width: 160px; }
.input-year   { width: 100px; }
.select-sm    { width: 140px; }
.select-lg    { min-width: 240px; }

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .55rem 1.1rem;
  border: none;
  border-radius: 6px;
  font-size: .875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, opacity .15s;
  white-space: nowrap;
  outline: none;
}

.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary  { background: var(--color-primary); color: #fff; }
.btn-primary:hover:not(:disabled)  { background: var(--color-primary-dk); }
.btn-danger   { background: var(--color-danger);  color: #fff; }
.btn-danger:hover:not(:disabled)   { background: #dc2626; }
.btn-ghost    { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); }
.btn-ghost:hover:not(:disabled)    { background: var(--bg-page); }
.btn-sm       { padding: .3rem .7rem; font-size: .8rem; }
.btn-xs       { padding: .2rem .5rem; font-size: .75rem; }
.btn-full     { width: 100%; justify-content: center; margin-top: .5rem; }

/* ── Alerts ─────────────────────────────────────────────────── */
.alert {
  padding: .65rem 1rem;
  border-radius: 6px;
  font-size: .875rem;
  margin-bottom: .75rem;
}

.alert-error   { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }
.alert-success { background: #dcfce7; color: #166534; border: 1px solid #86efac; }

/* ── Modal ──────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 1rem;
}

.modal {
  background: var(--bg-card);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-lg {
  max-width: 860px;
}

.desktop-only {
  display: block;
}

.mobile-only {
  display: none;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.modal-header h3 { font-size: 1.1rem; font-weight: 700; }

.modal-close {
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--text-secondary);
  line-height: 1;
}

.modal form { padding: 1.25rem 1.5rem; }

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: .75rem;
  padding-top: .5rem;
}

/* ── Tabs ───────────────────────────────────────────────────── */
.tabs {
  display: flex;
  gap: .25rem;
  margin-bottom: 1rem;
  border-bottom: 2px solid var(--border);
}

.tab {
  background: none;
  border: none;
  padding: .7rem 1.2rem;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color .15s, border-color .15s;
}

.tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.tab-content { display: none; }
.tab-content.active { display: block; }

.reservation-card-list {
  display: grid;
  gap: 1rem;
  padding: 1rem;
}

.reservation-card-list.mobile-only {
  display: none;
}

.reservation-card {
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 1rem;
}

.reservation-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: .9rem;
}

.reservation-card-title {
  font-size: 1.05rem;
  font-weight: 700;
}

.reservation-card-subtitle {
  color: var(--text-secondary);
  font-size: .85rem;
  margin-top: .2rem;
}

.reservation-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
  margin-bottom: 1rem;
}

.reservation-meta-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: .7rem .8rem;
}

.reservation-meta-label {
  color: var(--text-secondary);
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: .25rem;
}

.reservation-meta-value {
  font-size: .95rem;
  font-weight: 600;
}

.reservation-card-actions {
  display: flex;
  gap: .75rem;
  justify-content: flex-end;
}

.reservation-card-actions-wrap {
  flex-wrap: wrap;
  justify-content: flex-start;
}

.reservation-actions-inline {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
}

.modal-body {
  padding: 1rem 1.25rem 1.25rem;
}

.reservas-clase-modal-body {
  display: grid;
  gap: .8rem;
}

.reservas-clase-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .8rem;
  flex-wrap: wrap;
}

.reservas-clase-filters {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  flex-wrap: wrap;
}

.reservas-clase-filters .btn.active {
  background: #dbeafe;
  color: #1e40af;
  border-color: #93c5fd;
}

.booking-policy-indicator {
  margin-top: .25rem;
}

.reserva-pagos-modal-body {
  display: grid;
  gap: .95rem;
}

.reserva-pagos-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .6rem;
}

.reserva-pagos-chip {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #f8fafc;
  padding: .65rem .75rem;
  display: grid;
  gap: .2rem;
}

.reserva-pagos-chip span {
  color: var(--text-secondary);
  font-size: .76rem;
  text-transform: uppercase;
  letter-spacing: .03em;
}

.reserva-pagos-chip strong {
  font-size: .95rem;
}

.reserva-pago-form {
  border-top: 1px solid var(--border);
  padding-top: .9rem;
}

.reservation-empty {
  padding: 1.2rem;
  color: var(--text-secondary);
  text-align: center;
}

.alumno-detalle-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
}

.modal-alumno-detalle {
  width: min(92vw, 920px);
}

.alumno-detalle-body {
  overflow-x: hidden;
}

.alumno-detalle-item {
  border: 1px solid var(--border);
  background: #f8fafc;
  border-radius: 10px;
  padding: .65rem .75rem;
  display: flex;
  flex-direction: column;
  gap: .2rem;
  min-width: 0;
}

.alumno-detalle-item span {
  color: var(--text-secondary);
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.alumno-detalle-item strong {
  font-size: .95rem;
  line-height: 1.35;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.alumno-detalle-item-full {
  grid-column: 1 / -1;
}

.alumnos-filters-row {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

.alumnos-filter-item {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  min-width: 200px;
  flex: 1 1 200px;
}

.alumnos-filter-item label {
  font-size: .78rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.alumnos-filter-select {
  width: 100%;
  min-width: 200px;
}

.pagination-bar {
  border-top: 1px solid var(--border);
  padding: .85rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: .8rem;
}

.pagination-info {
  color: var(--text-secondary);
  font-size: .84rem;
}

.pagination-actions {
  display: flex;
  align-items: center;
  gap: .6rem;
}

.pagination-size-control {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  color: var(--text-secondary);
  font-size: .82rem;
}

.pagination-size-control .select-sm {
  width: 84px;
}

.pagination-page {
  color: var(--text-secondary);
  font-size: .84rem;
  min-width: 7.6rem;
  text-align: center;
}

.alumnos-card-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .55rem;
}

.metricas-trend-list {
  display: grid;
  gap: .8rem;
}

.metricas-trend-row {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: .7rem .75rem;
  background: #fff;
}

.metricas-trend-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: .6rem;
  margin-bottom: .5rem;
}

.metricas-trend-head strong {
  font-size: .88rem;
}

.metricas-trend-head .text-muted {
  font-size: .78rem;
}

.metricas-trend-bars {
  display: grid;
  gap: .32rem;
}

.metricas-trend-bar {
  height: 8px;
  border-radius: 999px;
  transition: width .22s ease;
}

.metricas-trend-bar-esperado {
  background: #cbd5e1;
}

.metricas-trend-bar-cobrado {
  background: linear-gradient(90deg, #60a5fa 0%, #2563eb 100%);
}

.recordatorio-email-preview {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  overflow: auto;
  max-height: 360px;
}

.reminder-template-grid {
  display: grid;
  gap: .8rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.reminder-template-card .card-header {
  padding: .65rem .8rem;
}

.reminder-template-card .card-header h4 {
  font-size: .9rem;
}

.reminder-template-card input[readonly] {
  margin-bottom: .55rem;
}

.reminder-rules-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .75rem;
}

.reminder-rule-item {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  padding: .75rem .8rem;
  cursor: pointer;
}

.reminder-rule-item input {
  margin-top: .2rem;
}

.reminder-rule-copy {
  display: grid;
  gap: .15rem;
}

.reminder-rule-copy small {
  color: var(--text-secondary);
  font-size: .78rem;
}

.reminder-summary-chips {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin-top: .85rem;
}

.reminder-diagnostics {
  margin-top: .7rem;
  padding: .6rem .7rem;
  border: 1px dashed var(--border);
  border-radius: 10px;
  background: #f8fafc;
}

.reminder-diagnostics p {
  margin: 0;
  font-size: .84rem;
  color: #334155;
}

.reminder-diagnostics p + p {
  margin-top: .28rem;
}

#reminder-preview-body tr[data-alumno-id],
#reminder-preview-cards article[data-alumno-id] {
  cursor: pointer;
}

.row-selected {
  outline: 2px solid rgba(37, 99, 235, .35);
  outline-offset: -2px;
}

.turno-highlight-row {
  background: linear-gradient(90deg, rgba(219, 234, 254, .95) 0%, rgba(239, 246, 255, .92) 100%);
}

.turno-highlight-row:hover {
  background: linear-gradient(90deg, rgba(219, 234, 254, 1) 0%, rgba(239, 246, 255, .98) 100%);
}

.reservation-card-highlight {
  border-color: rgba(37, 99, 235, .45);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, .12), 0 12px 28px rgba(37, 99, 235, .14);
  background: linear-gradient(180deg, #ffffff 0%, #eff6ff 100%);
}

/* ── Utilities ──────────────────────────────────────────────── */
.hidden        { display: none !important; }
.text-center   { text-align: center; }
.text-muted    { color: var(--text-secondary); }
.mt-4          { margin-top: 1.5rem; }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  body {
    display: block;
  }

  body.mobile-nav-lock {
    overflow: hidden;
    height: 100vh;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: min(82vw, 320px);
    height: 100dvh;
    max-height: 100dvh;
    z-index: 120;
    transform: translateX(-100%);
    transition: transform .28s cubic-bezier(.22, .61, .36, 1), box-shadow .28s ease;
    border-right: 1px solid #334155;
    box-shadow: none;
    padding-bottom: env(safe-area-inset-bottom, 0);
  }

  .sidebar.mobile-open {
    transform: translateX(0);
    box-shadow: 0 18px 40px rgba(2, 6, 23, .45);
  }

  .sidebar-header {
    padding: 1rem;
  }

  .nav-item a {
    margin: 2px .5rem;
    padding: .7rem 1rem;
    font-size: .9rem;
  }

  .sidebar-footer {
    padding: .9rem .9rem calc(.9rem + env(safe-area-inset-bottom, 0));
    border-top: 1px solid #334155;
    background: rgba(30, 41, 59, .98);
    backdrop-filter: blur(2px);
    display: grid;
    grid-template-columns: 1fr;
    align-items: stretch;
    gap: .6rem;
  }

  .sidebar-footer #user-name {
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
    line-height: 1.25;
    font-size: .82rem;
  }

  .sidebar-footer #logout-btn {
    width: 100%;
    justify-content: center;
  }

  .main-content {
    margin-left: 0;
    min-height: auto;
    padding: 1rem;
    padding-top: .85rem;
  }

  .topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    gap: .75rem;
    padding-left: 3.1rem;
  }

  .mobile-nav-btn {
    display: inline-flex;
    position: fixed;
    top: .75rem;
    left: .75rem;
    z-index: 130;
  }

  .topbar h2 {
    font-size: 1.2rem;
    margin: 0;
  }

  .topbar .btn,
  .topbar .select-sm {
    width: auto;
    justify-content: center;
  }

  .topbar-actions {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  #metricas-months {
    min-width: 170px;
  }

  .topbar .pago-alumno-search {
    width: 100%;
    min-width: 100%;
  }

  .card-header {
    padding: .85rem 1rem;
  }

  .card-header .input-search,
  .card-header .input-date,
  .card-header .input-year,
  .card-header .select-sm,
  .card-header .select-lg {
    width: 100%;
    min-width: 100%;
  }

  .alumnos-filters-row {
    width: 100%;
    gap: .45rem;
  }

  .alumnos-filter-item {
    min-width: 100%;
    flex: 1 1 100%;
    gap: .2rem;
  }

  .alumnos-filter-item label {
    font-size: .7rem;
    letter-spacing: .02em;
  }

  .alumnos-filter-select {
    min-width: 100%;
    padding: .45rem .65rem;
    font-size: .86rem;
  }

  .table {
    font-size: .82rem;
  }

  .table thead th,
  .table tbody td {
    padding: .6rem .7rem;
  }

  .tabs {
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
  }

  .tab {
    flex: 0 0 auto;
    padding: .65rem .9rem;
    font-size: .84rem;
  }

  .modal {
    max-width: 100%;
    border-radius: 10px;
  }

  .modal-header,
  .modal form {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .modal-footer {
    flex-direction: column-reverse;
    gap: .5rem;
  }

  .modal-footer .btn {
    width: 100%;
    justify-content: center;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: .7rem;
  }

  #modal-anotados .form-row[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }

  #modal-anotados #btn-anotado-agregar {
    width: 100%;
    justify-content: center;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: .75rem;
  }

  .stat-card {
    padding: .95rem;
  }

  .stat-info h3 {
    font-size: 1.35rem;
  }

  .reservation-meta {
    grid-template-columns: 1fr 1fr;
  }

  .reserva-pagos-summary {
    grid-template-columns: 1fr;
  }

  .reservas-clase-toolbar {
    align-items: flex-start;
  }

  .reservas-clase-filters {
    width: 100%;
  }

  .reservas-clase-filters .btn {
    flex: 1 1 auto;
    justify-content: center;
  }

  .alumno-detalle-grid {
    grid-template-columns: 1fr;
  }

  .pagination-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .pagination-actions {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
  }

  .pagination-page {
    min-width: 0;
    flex: 1;
  }

  .pagination-size-control {
    width: 100%;
    justify-content: space-between;
  }

  .pagination-size-control .select-sm {
    width: 120px;
    min-width: 120px;
  }

  #pagos-cards,
  #deuda-cards {
    padding: .85rem;
    gap: .75rem;
  }

  #pagos-pagination,
  #deuda-pagination {
    padding: .7rem .85rem;
  }

  .alumnos-card-actions {
    grid-template-columns: 1fr;
  }

  .alumnos-card-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .metricas-trend-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .reminder-rules-grid {
    grid-template-columns: 1fr;
  }

  .reminder-template-grid {
    grid-template-columns: 1fr;
  }

  .desktop-only {
    display: none;
  }

  .mobile-only {
    display: grid;
  }

  .reservation-card-list.mobile-only {
    display: grid;
  }

  #anotados-cards {
    padding: .9rem;
    gap: .75rem;
  }
}

@media (max-width: 480px) {
  .main-content {
    padding: .8rem;
  }

  .topbar {
    padding-left: 3rem;
  }

  .sidebar-title {
    font-size: 1rem;
  }

  .nav-item a {
    padding: .62rem .85rem;
  }

  .stats-grid { grid-template-columns: 1fr; }
  .auth-card { padding: 1.75rem 1.25rem; }
  .auth-page {
    padding: .8rem;
  }
  .auth-logo {
    margin-bottom: 1.25rem;
  }
  .auth-logo .logo-icon {
    font-size: 2.3rem;
  }
  .auth-logo h1 {
    font-size: 1.4rem;
  }
  .topbar .btn {
    width: auto;
  }
  .reservation-meta { grid-template-columns: 1fr; }
  .reservation-card-actions {
    justify-content: stretch;
  }
  .reservation-card-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

/* ── Public Agenda Calendar ─────────────────────────────────── */
.agenda-cal-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.agenda-cal-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .6rem 1rem;
  background: #f8fafc;
  border-bottom: 1px solid var(--border);
}

.agenda-cal-nav-label {
  font-weight: 600;
  font-size: .95rem;
  text-transform: capitalize;
  color: var(--text-primary);
}

.agenda-cal-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  padding: .4rem .3rem .15rem;
  background: #f8fafc;
  border-bottom: 1px solid var(--border);
}

.agenda-cal-weekdays span {
  text-align: center;
  font-size: .7rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: .04em;
  padding: .2rem 0;
}

.agenda-cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 3px;
  padding: .4rem .3rem .5rem;
}

.agenda-cal-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-size: .85rem;
  cursor: default;
  position: relative;
  font-weight: 400;
  color: #cbd5e1;
  min-height: 34px;
  transition: background .12s, color .12s;
}

.agenda-cal-day.in-month {
  color: var(--text-secondary);
}

.agenda-cal-day.past {
  color: #cbd5e1;
}

.agenda-cal-day.available {
  color: var(--text-primary);
  cursor: pointer;
  font-weight: 600;
}

.agenda-cal-day.available:hover {
  background: #eff6ff;
  color: var(--color-primary-dk);
}

.agenda-cal-day.available::after {
  content: '';
  position: absolute;
  bottom: 3px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-primary);
}

.agenda-cal-day.today {
  border: 2px solid var(--color-primary);
  font-weight: 700;
}

.agenda-cal-day.selected {
  background: var(--color-primary-dk) !important;
  color: #fff !important;
  font-weight: 700;
}

.agenda-cal-day.selected::after {
  background: rgba(255,255,255,.7);
}

.agenda-cal-day.selected.today {
  border-color: transparent;
}

.agenda-slots-label {
  font-weight: 600;
  font-size: .9rem;
  color: var(--text-primary);
  padding: .5rem 0 .35rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: .75rem;
}

.agenda-slots-hint {
  color: var(--text-secondary);
  font-size: .88rem;
  padding: .75rem 0;
  text-align: center;
}

.agenda-public-link-card {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border: 1px solid #bfdbfe;
  border-radius: 12px;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.agenda-public-link-card .link-info {
  display: flex;
  flex-direction: column;
  gap: .25rem;
}

.agenda-public-link-card .link-title {
  font-weight: 600;
  color: #1e40af;
}

.agenda-public-link-card .link-url {
  font-size: .82rem;
  color: #3b82f6;
  word-break: break-all;
}

.agenda-public-link-card .link-actions {
  display: flex;
  gap: .5rem;
  flex-shrink: 0;
}

/* Mobile-first focus for public agenda */
@media (max-width: 768px) {
  .agenda-cal-day {
    min-height: 40px;
    font-size: .95rem;
  }

  .agenda-cal-weekdays span {
    font-size: .68rem;
  }

  .agenda-public-link-card {
    padding: .9rem 1rem;
  }

  .agenda-public-link-card .link-actions {
    width: 100%;
  }

  .agenda-public-link-card .link-actions .btn,
  .agenda-public-link-card .link-actions a {
    flex: 1;
    text-align: center;
    justify-content: center;
  }

  body.auth-page main {
    padding: .75rem !important;
  }

  #agenda-form .form-row {
    grid-template-columns: 1fr;
  }

  #agenda-form .btn {
    width: 100%;
    justify-content: center;
  }

  #agenda-turnos .reservation-card {
    border-radius: 10px;
  }

  #agenda-turnos .reservation-card-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 420px) {
  .agenda-cal-day {
    min-height: 36px;
    font-size: .88rem;
  }

  .agenda-cal-nav {
    padding: .5rem .7rem;
  }

  .agenda-cal-nav .btn {
    padding: .15rem .45rem !important;
  }

  .agenda-cal-nav-label {
    font-size: .88rem;
  }
}