:root {
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: #818cf8;
  --primary-50: #eef2ff;
  --primary-100: #e0e7ff;
  --accent: #f59e0b;
  --accent-light: #fbbf24;
  --bg: #f8fafc;
  --bg-card: #ffffff;
  --text: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --success: #10b981;
  --success-light: #d1fae5;
  --danger: #ef4444;
  --danger-light: #fee2e2;
  --warning: #f59e0b;
  --warning-light: #fef3c7;
  --radius: 14px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 15px; }

body {
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  -webkit-tap-highlight-color: transparent;
  color: var(--text);
  line-height: 1.5;
  font-size: 0.9rem;
  -webkit-font-smoothing: antialiased;
}

/* ─── Navbar ─────────────────────────────── */
.navbar {
  background: linear-gradient(135deg, #4f46e5 0%, #6366f1 50%, #7c3aed 100%) !important;
  padding: 0;
  min-height: 52px;
  box-shadow: 0 2px 12px rgba(99,102,241,0.25);
}

.navbar-brand {
  font-size: 1.1rem;
  font-weight:400;
  letter-spacing: -0.5px;
  color: #fff !important;
  padding: 0.6rem 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
}

.nav-link-item {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 400;
  padding: 0.55rem 0.85rem;
  border-radius: 8px;
  transition: all var(--transition);
  white-space: nowrap;
  position: relative;
}

.nav-link-item:hover,
.nav-link-item:focus {
  color: #fff;
  background: rgba(255,255,255,0.12);
  text-decoration: none;
}

.nav-link-item.active {
  color: #fff;
  background: rgba(255,255,255,0.18);
  font-weight:400;
}

.nav-divider {
  width: 1px;
  height: 20px;
  background: rgba(255,255,255,0.2);
  margin: 0 0.15rem;
}

.nav-link-logout {
  color: #fff;
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 400;
  padding: 0.4rem 0.85rem;
  border-radius: 8px;
  border: none;
  background: #ef4444;
  white-space: nowrap;
  cursor: pointer;
}

/* ─── Cards ──────────────────────────────── */
.card, .alumno-item, .actividad-card, .obs-item {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border: 1px solid var(--border-light);
}

.card { border: none; }

.alumno-item {
  padding: 0.65rem 0.75rem;
  margin-bottom: 0.5rem;
}

.alumno-item:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-100);
}

.alumno-top {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}

.alumno-top .alumno-nombre {
  flex: 1;
  min-width: 0;
}

.alumno-check {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  accent-color: var(--primary);
}

.alumno-nombre {
  font-weight:400;
  font-size: 0.88rem;
  color: var(--primary) !important;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
  line-height: 1.3;
  text-decoration: none !important;
}

.alumno-nombre:hover {
  color: var(--primary-hover) !important;
}

.alumno-bottom {
  display: flex;
  gap: 0.35rem;
  align-items: center;
}

.alumno-bottom .dropdown { min-width: 0; }

.alumno-bottom .dropdown-toggle {
  font-size: 0.76rem;
  padding: 0.25rem 0.5rem;
  min-height: 30px;
  text-align: left;
  overflow: hidden;
}

.alumno-bottom .dropdown-menu {
  min-width: 180px;
  max-width: min(90vw, 350px);
  font-size: 0.82rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
}

.alumno-bottom .dropdown-menu .dropdown-item {
  padding: 0.4rem 0.75rem;
  font-size: 0.82rem;
}

.alumno-bottom .btn-save {
  flex-shrink: 0;
  min-height: 30px;
  padding: 0.2rem 0.5rem;
  font-size: 0.78rem;
  min-width: 36px;
}

/* ─── Buttons ────────────────────────────── */
.btn {
  border-radius: var(--radius-sm);
  font-weight:400;
  transition: all var(--transition);
  padding: 0.45rem 0.9rem;
  font-size: 0.88rem;
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-sm {
  border-radius: var(--radius-xs);
  font-size: 0.78rem;
  padding: 0.25rem 0.55rem;
  min-height: 30px;
}

.btn-icon {
  width: 30px;
  height: 30px;
  min-height: 30px;
  padding: 0;
  border-radius: 50%;
}

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  box-shadow: 0 4px 12px rgba(99,102,241,0.35);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(99,102,241,0.25);
}

.btn-success {
  background: var(--success);
  border-color: var(--success);
}

.btn-success:hover {
  background: #059669;
  border-color: #059669;
  box-shadow: 0 4px 12px rgba(16,185,129,0.3);
  transform: translateY(-1px);
}

.btn-outline-primary {
  color: var(--primary);
  border-color: var(--primary);
}

.btn-outline-primary:hover {
  background: var(--primary);
  color: #fff;
}

.btn-outline-secondary {
  color: var(--text-secondary);
  border-color: var(--border);
}

.btn-outline-secondary:hover {
  background: var(--bg);
  border-color: var(--border);
}

.btn-record {
  width: 42px;
  height: 42px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  flex-shrink: 0;
  font-size: 1.2rem;
}

.btn-record.recording {
  background: var(--danger) !important;
  border-color: var(--danger) !important;
  animation: pulse 1.2s infinite;
  box-shadow: 0 0 0 6px rgba(239,68,68,0.15);
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 6px rgba(239,68,68,0.15); }
  50% { opacity: 0.7; box-shadow: 0 0 0 10px rgba(239,68,68,0.08); }
}

/* ─── Forms ──────────────────────────────── */
.form-control, .form-select {
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
  font-size: 0.88rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  padding: 0.5rem 0.7rem;
  min-height: 40px;
  color: var(--text);
}

.form-control-sm {
  min-height: 30px;
  padding: 0.2rem 0.45rem;
  font-size: 0.78rem;
}

.form-select-sm {
  min-height: 30px;
  padding: 0.2rem 0.45rem;
  font-size: 0.78rem;
}

.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.12);
}

.form-control::placeholder {
  color: var(--text-muted);
}

.form-label {
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--text-secondary);
  margin-bottom: 0.3rem;
}

.form-select {
  background-color: var(--bg-card);
}

/* ─── Observations ───────────────────────── */
.obs-item {
  padding: 0.7rem 0.85rem;
  margin-bottom: 0.45rem;
  border-left: 3px solid var(--primary);
  font-size: 0.88rem;
  line-height: 1.45;
}

.obs-item.audio {
  border-left-color: var(--success);
}

.obs-item .badge {
  font-size: 0.68rem;
  padding: 0.2rem 0.55rem;
  border-radius: 20px;
}

/* ─── Activity cards ─────────────────────── */
.actividad-card {
  padding: 0.7rem 0.85rem;
  margin-bottom: 0.45rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
}

/* ─── Toast ──────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 1rem;
  left: 0.75rem;
  right: 0.75rem;
  z-index: 9999;
}

.toast {
  border-radius: var(--radius-sm) !important;
  font-weight:400;
  font-size: 0.85rem;
  box-shadow: var(--shadow-lg);
}

/* ─── Informe ────────────────────────────── */
.informe-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  font-size: 0.88rem;
  line-height: 1.75;
  white-space: pre-wrap;
  border: 1px solid var(--border-light);
}

.informe-card .titulo {
  text-align: center;
  font-weight:400;
  font-size: 1.1rem;
  letter-spacing: 1.5px;
  color: var(--primary);
  margin-bottom: 0.2rem;
}

.informe-card .subtitulo {
  text-align: center;
  font-weight:400;
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 0.85rem;
}

.informe-card .area {
  font-weight:400;
  color: var(--primary);
  margin-top: 0.85rem;
  font-size: 0.88rem;
}

.informe-card .faltas {
  font-weight:400;
  margin-top: 0.85rem;
  color: var(--text);
}

.informe-card .alumno-nombre {
  display: block;
  text-align: center;
  color: var(--danger);
  font-weight:400;
  font-size: 1rem;
  margin-bottom: 0.5rem;
  letter-spacing: 0.5px;
}

/* ─── Informe editor ─────────────────────── */
.informe-edit {
  width: 100%;
  min-height: 400px;
  height: 70vh;
  max-height: 700px;
  border: 2px solid var(--primary);
  border-radius: var(--radius);
  padding: 1.2rem;
  font-family: 'Georgia', 'Times New Roman', serif;
  font-size: 0.92rem;
  line-height: 1.85;
  resize: vertical;
  background: #fffef7;
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.04);
  box-sizing: border-box;
}

.informe-edit:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(99,102,241,0.1), inset 0 2px 8px rgba(0,0,0,0.04);
}

/* ─── Audio player ───────────────────────── */
audio {
  border-radius: var(--radius-sm);
  background: var(--border-light);
  height: 36px;
  width: 100%;
  max-width: 100%;
}

audio::-webkit-media-controls-panel {
  background: var(--border-light);
}

/* ─── Section headers ────────────────────── */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.6rem;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.section-header h6 {
  font-weight:400;
  font-size: 0.88rem;
  color: var(--text);
  margin: 0;
}

.area-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.1rem;
  margin-bottom: 0.4rem;
}

.area-header h6 {
  color: var(--primary);
  font-weight:400;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 0;
}

/* ─── Loading ────────────────────────────── */
.spinner-border-sm {
  width: 0.9rem;
  height: 0.9rem;
  border-width: 0.15em;
}

/* ─── Today's obs ────────────────────────── */
#obsHoyContainer .obs-item {
  padding: 0.55rem 0.8rem;
}

/* ─── Modals ─────────────────────────────── */
.modal-content {
  border-radius: var(--radius);
  border: none;
  box-shadow: var(--shadow-xl);
}

.modal-header {
  border-bottom: 1px solid var(--border-light);
  padding: 1rem 1.25rem;
}

.modal-header .modal-title {
  font-size: 1rem;
}

.modal-footer {
  border-top: 1px solid var(--border-light);
  padding: 0.85rem 1.25rem;
}

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

/* ─── Headings ───────────────────────────── */
h5 { font-size: 1.08rem; font-weight:400; }
h6 { font-size: 0.92rem; }

hr { margin: 1rem 0; opacity: 0.4; }

/* ─── Checkbox ───────────────────────────── */
.obs-checkbox {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--danger);
}

/* ─── Auth pages (login, register, etc.) ─── */
.auth-page {
  background: linear-gradient(135deg, #eef2ff 0%, #e0e7ff 30%, #f8fafc 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.auth-card {
  background: var(--bg-card);
  border-radius: 20px;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-light);
  overflow: hidden;
}

.auth-card .card-body {
  padding: 2rem 1.5rem;
}

.auth-logo {
  width: 80px;
  height: 80px;
  border-radius: 18px;
  object-fit: cover;
  box-shadow: 0 4px 16px rgba(99,102,241,0.25);
}

.auth-brand {
  font-size: 2rem;
  font-weight:400;
  letter-spacing: -1px;
  background: linear-gradient(135deg, var(--primary), #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.auth-subtitle {
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* ─── Stats ──────────────────────────────── */
.stats-row .card {
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.5rem;
  text-align: center;
}

.stats-row .card .fs-5 {
  font-size: 1.1rem !important;
  font-weight:400;
}

.stats-row .card .small {
  font-size: 0.68rem !important;
  color: var(--text-muted);
}

/* ─── Install banner ─────────────────────── */
.install-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-card);
  border-top: 2px solid var(--primary);
  padding: 0.6rem 0.85rem;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  z-index: 9998;
  box-shadow: 0 -4px 16px rgba(0,0,0,0.08);
}

.install-banner.show { display: flex; }

.install-banner span {
  font-size: 0.82rem;
  font-weight:400;
  flex: 1;
}

/* ─── Soporte / Chat ───────────────────── */
.soporte-btn {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 9997;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  text-decoration: none;
  box-shadow: 0 6px 18px rgba(99,102,241,0.4);
  transition: transform 0.15s ease;
}
.soporte-btn:active { transform: scale(0.92); }
.soporte-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background: #ef4444;
  color: #fff;
  font-size: 0.68rem;
  min-width: 20px;
  height: 20px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
}

.chat-card { display: flex; flex-direction: column; overflow: hidden; padding: 0; }
.chat-msgs {
  height: 60vh;
  min-height: 320px;
  max-height: 60vh;
  overflow-y: auto;
  padding: 1rem;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.chat-burbuja {
  max-width: 80%;
  padding: 0.55rem 0.8rem;
  border-radius: 14px;
  font-size: 0.88rem;
  white-space: pre-wrap;
  word-break: break-word;
}
.chat-burbuja.propia {
  align-self: flex-end;
  background: var(--primary);
  color: #fff;
  border-bottom-right-radius: 4px;
}
.chat-burbuja.ajena {
  align-self: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}
.chat-hora { font-size: 0.68rem; opacity: 0.7; margin-top: 0.2rem; }
.chat-vacio { color: var(--text-muted); text-align: center; margin: auto; font-size: 0.85rem; }
.chat-aviso {
  align-self: center;
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--primary-50);
  border-radius: 12px;
  padding: 0.3rem 0.8rem;
  text-align: center;
}
.chat-input-wrap {
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem;
  border-top: 1px solid var(--border);
  background: var(--bg-card);
  align-items: flex-end;
}
.chat-input-wrap textarea { resize: none; }
.btn-icon-send { white-space: nowrap; min-height: 44px; }

/* ─── Panel admin ──────────────────────── */
.admin-layout { display: flex; gap: 1rem; align-items: flex-start; }
.admin-sidebar { width: 200px; flex-shrink: 0; display: flex; flex-direction: column; gap: 0.25rem; }
.admin-sidebar .btn { text-align: left; justify-content: flex-start; }
.admin-main { flex: 1; min-width: 0; }
.admin-seccion { display: none; }
.admin-seccion.activa { display: block; }

.thread-item {
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  margin-bottom: 0.4rem;
  background: var(--bg-card);
  transition: border-color 0.15s ease, background 0.15s ease;
}
.thread-item:hover { border-color: var(--primary-light); }
.thread-item.activo { border-color: var(--primary); background: var(--primary-50); }
.thread-item .thread-nombre { font-size: 0.88rem; }
.thread-item .thread-ultimo {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.soporte-layout { display: flex; gap: 1rem; align-items: stretch; }
.soporte-lista { width: 280px; flex-shrink: 0; overflow-y: auto; max-height: 60vh; }
.soporte-chat { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.soporte-chat .chat-msgs { height: 48vh; min-height: 260px; max-height: 48vh; }
.soporte-vacio { color: var(--text-muted); text-align: center; margin: auto; font-size: 0.85rem; padding: 2rem; }

/* ─── Responsive ─────────────────────────── */
@media (max-width: 576px) {
  html { font-size: 16px; }

  /* Navbar — scrollable horizontal, no wrap cramming */
  .navbar { min-height: 56px; }
  .navbar-brand { font-size: 1.1rem; }

  .navbar .container-fluid {
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 0;
  }
  .navbar .container-fluid::-webkit-scrollbar { display: none; }

  .nav-links {
    gap: 0.15rem;
    flex-wrap: nowrap;
    padding-bottom: 0;
  }

  .nav-link-item {
    font-size: 0.78rem;
    padding: 0.5rem 0.55rem;
  }

  .nav-divider { display: none; }

  .nav-link-logout {
    font-size: 0.78rem;
    padding: 0.45rem 0.7rem;
    background: #ef4444;
    margin-left: 0.2rem;
  }

  /* More breathing room in main container */
  .container-fluid { padding-left: 1rem !important; padding-right: 1rem !important; }

  /* Stats row — bigger touch targets */
  .stats-row .col-3 { padding: 0 0.35rem; }
  .stats-row .card { padding: 0.65rem 0.4rem !important; }
  .stats-row .card .fs-5 { font-size: 1.1rem !important; }
  .stats-row .card .small { font-size: 0.7rem !important; }

  /* Alumno items */
  .alumno-item {
    padding: 0.75rem 0.85rem;
    margin-bottom: 0.5rem;
  }
  .alumno-top { margin-bottom: 0.7rem; gap: 0.65rem; }
  .alumno-nombre { font-size: 1rem; }
  .alumno-bottom { gap: 0.5rem; }
  .alumno-bottom .dropdown-toggle { font-size: 0.85rem; padding: 0.35rem 0.55rem; min-height: 36px; }
  .alumno-bottom .dropdown-menu { min-width: 200px; font-size: 0.88rem; }
  .alumno-bottom .btn-save { font-size: 0.85rem; min-height: 36px; padding: 0.25rem 0.55rem; min-width: 40px; }

  /* Buttons */
  .btn-record { width: 44px; height: 44px; font-size: 1.3rem; }
  .btn-icon { width: 34px; height: 34px; }
  .btn-sm { font-size: 0.85rem; padding: 0.3rem 0.6rem; min-height: 34px; }
  .btn { padding: 0.5rem 1rem; min-height: 42px; font-size: 0.92rem; }

  /* Forms */
  .form-control, .form-select { font-size: 0.95rem; min-height: 44px; padding: 0.55rem 0.75rem; }
  .form-control-sm { min-height: 36px; padding: 0.3rem 0.5rem; font-size: 0.85rem; }
  .form-select-sm { min-height: 36px; padding: 0.3rem 0.5rem; font-size: 0.85rem; }

  /* Activity/indicator cards */
  .actividad-card {
    padding: 0.85rem 0.9rem;
    margin-bottom: 0.5rem;
    font-size: 0.92rem;
  }

  /* Observation items */
  .obs-item { padding: 0.85rem 0.9rem; margin-bottom: 0.5rem; font-size: 0.92rem; }

  /* Section headers */
  .section-header { margin-bottom: 0.8rem; gap: 0.5rem; }

  /* Area headers */
  .area-header { margin-top: 1.3rem; margin-bottom: 0.5rem; gap: 0.6rem; }

  /* Modals */
  .modal-header { padding: 1rem 1rem; }
  .modal-body { padding: 1rem; }
  .modal-footer { padding: 0.85rem 1rem; }

  /* Tabs */
  .nav-tabs .nav-link { padding: 0.55rem 1rem; font-size: 0.9rem; }

  /* Cards */
  .card, .alumno-item, .actividad-card, .obs-item { border-radius: var(--radius); }
  .card { padding: 1rem; }

  /* Bulk bar */
  #bulkBar, #bulkBarArea, #bulkBarUni { margin-bottom: 0.6rem; }

  /* Admin layout */
  .admin-layout { flex-direction: column; }
  .admin-sidebar {
    width: 100%;
    flex-direction: row;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 0.4rem;
  }
  .admin-sidebar::-webkit-scrollbar { display: none; }
  .admin-sidebar .btn { white-space: nowrap; text-align: center; }

  /* Soporte */
  .soporte-layout { flex-direction: column; }
  .soporte-lista { width: 100%; max-height: 40vh; }
  .soporte-chat .chat-msgs { height: 42vh; min-height: 220px; max-height: 42vh; }
  .chat-msgs { height: 52vh; min-height: 280px; max-height: 52vh; }
}