:root {
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: #e0e7ff;
  --primary-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  
  --secondary: #1e293b;
  
  --success: #10b981;
  --success-bg: #d1fae5;
  --success-text: #065f46;

  --warning: #f59e0b;
  --warning-bg: #fef3c7;
  --warning-text: #92400e;
  
  --error: #ef4444;
  --error-bg: #fee2e2;
  --error-text: #991b1b;
  
  --info: #3b82f6;
  --info-bg: #dbeafe;
  --info-text: #1e40af;

  --bg: #f4f7fb;
  --surface: #ffffff;
  
  --text: #0f172a;
  --text-secondary: #64748b;
  --muted: #cbd5e1;
  --border: #f1f5f9;
  --border-dark: #e2e8f0;

  --spacing-1: 8px;
  --spacing-2: 12px;
  --spacing-3: 16px;
  --spacing-4: 24px;

  --radius: 16px;
  --radius-sm: 10px;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.04);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

body.no-scroll {
  overflow: hidden;
}

h1, h2, h3, p {
  margin: 0;
}

h1 { font-size: 24px; font-weight: 700; color: var(--text); }
h2 { font-size: 18px; font-weight: 600; color: var(--text); }

label, input, button, select {
  font-family: inherit;
}

/* Base Buttons */
.btn {
  border: 0;
  border-radius: var(--radius-sm);
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--primary-gradient);
  color: #fff;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}
.btn-primary:hover {
  box-shadow: 0 6px 16px rgba(99, 102, 241, 0.35);
}

.btn-cta {
  padding: 12px 24px;
  font-size: 15px;
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border-dark);
  box-shadow: var(--shadow-sm);
}
.btn-secondary:hover {
  background: #f8fafc;
}

.btn-muted {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}
.btn-muted:hover {
  background: #cddbfe;
}

.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-dark);
}
.btn-outline:hover {
  background: var(--surface);
  color: var(--text);
}

.btn-block {
  width: 100%;
  font-size: 15px;
  padding: 12px;
}

.hidden {
  display: none !important;
}

/* Global Notice */
.global-notice {
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 14px;
  font-weight: 500;
  background: var(--info-bg);
  color: var(--info-text);
  border: 1px solid #bfdbfe;
}
.global-notice.error {
  border-color: #fca5a5;
  background: var(--error-bg);
  color: var(--error-text);
}
.global-notice.success {
  border-color: #6ee7b7;
  background: var(--success-bg);
  color: var(--success-text);
}

.error { color: var(--error); }

/* Login */
.container {
  max-width: 420px;
  margin: 6rem auto;
  padding: var(--spacing-4);
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}
.demo-login-hint {
  margin-top: var(--spacing-2);
  padding: 12px;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  background: var(--info-bg);
  color: var(--info-text);
  font-size: 14px;
  line-height: 1.5;
}
.container form { margin-top: var(--spacing-3); }
.container label {
  display: block;
  margin: 12px 0 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}
.container input {
  width: 100%;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  padding: 12px;
  font-size: 15px;
  transition: border-color 0.2s;
}
.container input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}
.container button {
  width: 100%;
  margin-top: var(--spacing-3);
  padding: 14px;
}

/* Admin Layout */
.admin-body {
  min-height: 100vh;
  background: radial-gradient(circle at 0% 0%, #eef4ff 0%, #f5f8fc 48%, #edf3f8 100%);
  overflow-x: hidden;
}
.admin-layout {
  display: grid;
  grid-template-columns: 1fr;
  min-height: 100vh;
  min-width: 0;
}

.sidebar-overlay {
  display: none;
}

.mobile-menu-toggle,
.mobile-menu-close {
  display: none;
  border: 1px solid #d5e2ff;
  background: #eff4ff;
  color: #334fd8;
  border-radius: 12px;
  font-weight: 700;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
}

.mobile-menu-toggle {
  padding: 8px 12px;
  margin-bottom: 10px;
}

.mobile-menu-close {
  width: 36px;
  height: 36px;
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 2;
}

/* Sidebar */
.sidebar {
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  padding: var(--spacing-3);
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
  gap: var(--spacing-4);
  box-shadow: inset -1px 0 0 rgba(226, 232, 240, 0.9);
}

.sidebar-top {
  display: grid;
  gap: var(--spacing-4);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}
.brand i {
  color: var(--primary);
  font-size: 28px;
}

.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav-item {
  text-decoration: none;
  color: var(--text-secondary);
  padding: 11px 14px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}
.nav-item i {
  font-size: 19px;
  opacity: 0.82;
}

.nav-item:hover {
  background: #eef2ff;
  border-color: #dbe4ff;
  color: #334155;
  transform: translateX(2px);
}

.nav-item.active {
  background: linear-gradient(135deg, #e6ebff 0%, #dbe7ff 100%);
  border-color: #cbd7ff;
  color: #334fd8;
  box-shadow: 0 6px 16px rgba(76, 96, 210, 0.14);
}
.nav-item.active i {
  color: #334fd8;
  opacity: 1;
}

/* Dashboard Header */
.dashboard-content {
  padding: var(--spacing-4);
  display: grid;
  gap: var(--spacing-4);
  align-content: start;
  min-width: 0;
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}
.header-title-area h1 { margin-bottom: 4px; }
.header-title-area p { color: var(--text-secondary); font-size: 14px; }

.header-profile {
  display: flex;
  align-items: center;
  gap: 16px;
  position: relative;
}
.header-bell {
  background: var(--surface);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--text-secondary);
  font-size: 20px;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  border: 1px solid var(--border);
  position: relative;
}
.header-bell.has-alert {
  color: var(--primary);
  border-color: #c7d2fe;
  background: #eef2ff;
}

.notification-count {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 18px;
  height: 18px;
  border-radius: 999px;
  padding: 0 5px;
  background: var(--error);
  color: #fff;
  font-size: 11px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.notifications-panel {
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  width: min(420px, 90vw);
  max-height: 360px;
  overflow: hidden;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-lg);
  z-index: 30;
}

.notifications-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  border-bottom: 1px solid var(--border);
}

.notifications-body {
  max-height: 300px;
  overflow: auto;
  padding: 8px;
  display: grid;
  gap: 8px;
}

.notifications-item {
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  padding: 10px;
  background: #fff;
  display: grid;
  gap: 4px;
}

.notifications-item small {
  color: var(--text-secondary);
}

.notifications-empty {
  color: var(--text-secondary);
  font-size: 14px;
  text-align: center;
  padding: 20px;
}

/* Layout Grid */
.dashboard-layout-main {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-3);
  align-items: start;
}

.dashboard-primary {
  display: grid;
  gap: var(--spacing-3);
}

/* Cards */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}

.stack-gap {
  display: grid;
  gap: var(--spacing-3);
}

/* Top Event Card (Hero) */
.hero-event-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero-event-left {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 15px;
}
.hero-event-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 20px;
}

/* Tag Pliis */
.tag-pill {
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.tag-green { background: var(--success-bg); color: var(--success-text); }
.tag-blue { background: var(--info-bg); color: var(--info-text); }

/* KPI Metrics */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-3);
}

.metric-card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.metric-header {
  display: flex;
  align-items: center;
  gap: 12px;
}
.metric-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 20px;
}
.icon-purple { background: var(--primary-light); color: var(--primary); }
.icon-green { background: var(--success-bg); color: var(--success); }
.icon-orange { background: var(--warning-bg); color: var(--warning); }
.icon-blue { background: var(--info-bg); color: var(--info); }

.metric-title {
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
}
.metric-value {
  font-size: 32px;
  font-weight: 700;
}
.metric-sub {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: -4px;
}

#aforoCard {
  border: 1px solid transparent;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

#aforoCard.aforo-ok {
  border-color: #bbf7d0;
  background: linear-gradient(180deg, #ffffff 0%, #f0fdf4 100%);
}

#aforoCard.aforo-warning {
  border-color: #fde68a;
  background: linear-gradient(180deg, #ffffff 0%, #fffbeb 100%);
}

#aforoCard.aforo-critical {
  border-color: #fdba74;
  background: linear-gradient(180deg, #ffffff 0%, #fff7ed 100%);
}

#aforoCard.aforo-full {
  border-color: #fca5a5;
  background: linear-gradient(180deg, #ffffff 0%, #fef2f2 100%);
  box-shadow: 0 8px 20px rgba(239, 68, 68, 0.12);
}

#aforoCard.aforo-ok #aforoProgress {
  background: #22c55e;
}

#aforoCard.aforo-warning #aforoProgress {
  background: #f59e0b;
}

#aforoCard.aforo-critical #aforoProgress {
  background: #f97316;
}

#aforoCard.aforo-full #aforoProgress {
  background: #ef4444;
}

/* Progress Bar */
.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
  margin-top: auto;
}
.progress-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 999px;
}

/* Sync Card */
.sync-card {
  position: relative;
  overflow: hidden;
}
.sync-card .metric-title { margin-bottom: 4px; }
.sync-card .metric-value { font-size: 20px; margin-bottom: 12px; }
.sync-illlustration {
  position: absolute;
  top: 24px;
  right: -10px;
  font-size: 80px;
  opacity: 0.3;
}
.sync-illustration-check {
  position: absolute;
  right: 20px;
  top: 80px;
  background: var(--success);
  color: white;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  font-size: 14px;
}

/* Table styling */
.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.table-wrap {
  width: 100%;
  overflow-x: auto;
  max-width: 100%;
}
table {
  width: 100%;
  border-collapse: collapse;
  white-space: nowrap;
}
th {
  text-align: left;
  padding: 12px 16px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  border-bottom: 1px solid var(--border-dark);
}
td {
  padding: 16px;
  font-size: 14px;
  border-bottom: 1px dashed var(--border);
}
tbody tr:last-child td {
  border-bottom: 0;
}
tbody tr:hover td {
  background: #fdfdff;
}

.table-footer {
  text-align: center;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.table-footer a {
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
}

/* Forms & Filters */
.grid-form {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}
.grid-form.two-cols {
  grid-template-columns: 1fr 1fr;
}
.inline-form {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}
.inline-form > * {
  flex: 1 1 auto;
}
.inline-form > button {
  flex: 0 0 auto;
}
.grid-form input,
.grid-form select,
.inline-form input,
.inline-form select {
  height: 42px;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  padding: 0 12px;
  font-size: 14px;
  background: var(--surface);
  color: var(--text);
  outline: none;
}
.grid-form input:focus,
.grid-form select:focus,
.inline-form input:focus,
.inline-form select:focus {
  border-color: var(--primary);
}

/* Lectores */
.lectores-layout {
  max-width: 1120px;
  margin: 0 auto;
}

.content-narrow {
  max-width: 960px;
  margin: 0 auto;
  min-width: 0;
}

.section-head {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.section-head-icon {
  color: var(--primary);
  font-size: 20px;
  margin-top: 2px;
}

.section-subtitle {
  margin-top: 4px;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.4;
}

.lectores-portal-grid {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 20px;
  align-items: center;
}

.lector-access-qr {
  width: 220px;
  min-height: 220px;
  padding: 10px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--border-dark);
}

.lectores-portal-content {
  max-width: 760px;
}

.lectores-metrics-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.lectores-form,
.lectores-filter-form {
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

.lector-submit-btn {
  grid-column: 1 / -1;
  min-height: 44px;
}

.form-narrow {
  max-width: 760px;
  width: 100%;
}

.invitados-layout {
  max-width: 1120px;
  margin: 0 auto;
}

.invitados-filter-form,
.invitados-actions-row {
  max-width: 980px;
  margin: 0 auto;
  width: 100%;
}

.invitados-table {
  table-layout: fixed;
  white-space: normal;
}

.invitados-table th,
.invitados-table td {
  vertical-align: middle;
}

.invitados-table th:nth-child(1),
.invitados-table td:nth-child(1) {
  width: 44px;
  text-align: center;
}

.invitados-table th:nth-child(2),
.invitados-table td:nth-child(2) {
  width: 104px;
  min-width: 104px;
  white-space: nowrap;
  word-break: normal;
  overflow-wrap: normal;
  font-variant-numeric: tabular-nums;
}

.invitados-table th:nth-child(3),
.invitados-table td:nth-child(3) {
  min-width: 160px;
}

.invitados-table th:nth-child(4),
.invitados-table td:nth-child(4) {
  min-width: 220px;
}

.invitados-table th:nth-child(5),
.invitados-table td:nth-child(5),
.invitados-table th:nth-child(6),
.invitados-table td:nth-child(6) {
  width: 72px;
}

.invitados-table th:nth-child(7),
.invitados-table td:nth-child(7) {
  width: 220px;
  padding-right: 18px;
}

.invitados-table th:nth-child(8),
.invitados-table td:nth-child(8) {
  width: 148px;
  text-align: right;
}

.invitation-cell {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  min-width: 180px;
}

.inline-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  width: max-content;
  margin-left: auto;
}

.btn-inline {
  height: 34px;
  padding: 0 12px;
  font-size: 12px;
  border-radius: 8px;
  white-space: nowrap;
}

.row-menu {
  position: relative;
  display: inline-block;
}

.row-menu > summary {
  list-style: none;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border-dark);
  border-radius: 8px;
  background: #fff;
  display: grid;
  place-items: center;
  cursor: pointer;
  font-size: 16px;
  color: var(--text-secondary);
}

.row-menu > summary::-webkit-details-marker {
  display: none;
}

.row-menu-items {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  display: grid;
  gap: 6px;
  min-width: 152px;
  padding: 8px;
  border-radius: 12px;
  border: 1px solid var(--border-dark);
  background: #fff;
  z-index: 12;
}

.popover-menu {
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.18);
}

@media (max-width: 1100px) {
  .invitados-table th:nth-child(3),
  .invitados-table td:nth-child(3) {
    width: 170px;
  }
  .invitados-table th:nth-child(4),
  .invitados-table td:nth-child(4) {
    width: 210px;
  }
  .invitados-table th:nth-child(7),
  .invitados-table td:nth-child(7) {
    width: 190px;
    padding-right: 12px;
  }
  .invitados-table th:nth-child(8),
  .invitados-table td:nth-child(8) {
    width: 130px;
  }
}

.lector-embed-wrap {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
}

.lector-embed-frame {
  width: 100%;
  min-height: min(82vh, 900px);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.14);
}

/* Eventos */
.eventos-layout {
  display: grid;
  grid-template-columns: minmax(280px, 420px) 1fr;
  gap: var(--spacing-3);
  align-items: start;
  max-width: 1120px;
  margin: 0 auto;
}

.eventos-main,
.eventos-side {
  display: grid;
  gap: var(--spacing-3);
}

.form-intro {
  margin-top: -4px;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.4;
}

.evento-config-form {
  gap: 14px;
}

.evento-config-form .form-field {
  display: grid;
  gap: 6px;
}

.evento-config-form .form-field label {
  font-size: 12px;
  font-weight: 700;
  color: #334155;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.evento-config-form .form-field small {
  color: var(--text-secondary);
  font-size: 12px;
}

.evento-config-form .form-field--full {
  grid-column: 1 / -1;
}

.evento-config-form .checkbox-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 10px 12px;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  background: #f8fafc;
}

.evento-config-form .checkbox-row input[type="checkbox"] {
  width: 16px;
  height: 16px;
  margin: 0;
}

.evento-config-toggles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.evento-config-submit {
  grid-column: 1 / -1;
  min-height: 46px;
}

/* Split Stats (Reader Status) */
.split-stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fafbfc;
}
.split-stat-header {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
}
.split-stat-val {
  font-size: 18px;
  font-weight: 700;
}

.split-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* Null State */
.null-state {
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 32px 24px;
  text-align: center;
  color: var(--text-secondary);
}
.null-state i {
  font-size: 48px;
  color: var(--primary-light);
  margin-bottom: 12px;
}
.null-state h3 {
  font-size: 16px;
  color: var(--text);
  margin-bottom: 4px;
}
.null-state p {
  font-size: 13px;
}

/* Specific Modifiers */
.empty-row { text-align: center; color: var(--text-secondary); padding: 32px !important; }

/* Responsive adjustments */
@media (min-width: 1024px) {
  .admin-layout {
    grid-template-columns: 280px 1fr;
  }
  .sidebar {
    position: sticky;
    top: 0;
    min-height: 100vh;
    max-height: 100vh;
    overflow-y: auto;
  }
}

@media (max-width: 1200px) {
  .dashboard-layout-main {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 800px) {
  .metrics-grid {
    grid-template-columns: 1fr 1fr;
  }
  .lectores-metrics-grid {
    grid-template-columns: 1fr;
  }
  .lectores-portal-grid {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }
  .lectores-portal-content {
    max-width: 100%;
    width: 100%;
  }
  .split-stats-grid {
    grid-template-columns: 1fr;
  }
  .eventos-layout {
    grid-template-columns: 1fr;
  }
  .content-narrow,
  .form-narrow {
    max-width: 100%;
  }
  .lector-embed-wrap {
    max-width: 100%;
  }
  .lector-embed-frame {
    min-height: 72vh;
  }
  .grid-form.two-cols {
    grid-template-columns: 1fr;
  }
  .evento-config-toggles {
    grid-template-columns: 1fr;
  }
  .invitados-table {
    table-layout: auto;
  }
  .invitados-table th:nth-child(7),
  .invitados-table td:nth-child(7),
  .invitados-table th:nth-child(8),
  .invitados-table td:nth-child(8) {
    min-width: 170px;
  }
  .inline-actions {
    min-width: 110px;
  }
}

@media (max-width: 1023px) {
  .admin-layout {
    position: relative;
  }
  .sidebar-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 40;
  }
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: min(320px, 86vw);
    height: 100dvh;
    transform: translateX(-104%);
    transition: transform 0.22s ease;
    z-index: 50;
    border-right: 1px solid var(--border);
    border-bottom: 0;
    padding: 14px 12px 12px;
    gap: 12px;
    box-shadow: 0 18px 42px rgba(15, 23, 42, 0.26);
  }
  .admin-layout.mobile-nav-open .sidebar {
    transform: translateX(0);
  }
  .admin-layout.mobile-nav-open .sidebar-overlay {
    opacity: 1;
    pointer-events: auto;
  }
  .mobile-menu-toggle,
  .mobile-menu-close {
    display: inline-flex;
  }
  .sidebar-top {
    gap: 12px;
    padding-top: 6px;
  }
  .brand {
    font-size: 16px;
    padding-right: 44px;
  }
  .brand i {
    font-size: 24px;
  }
  .nav-menu {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: calc(100dvh - 110px);
    overflow-y: auto;
    padding: 2px 4px 8px 0;
  }
  .nav-item {
    min-height: 44px;
    padding: 10px 12px;
    font-size: 14px;
    line-height: 1.2;
    gap: 10px;
    justify-content: flex-start;
  }
  .nav-item i {
    font-size: 18px;
  }
  .dashboard-content {
    padding: 14px;
  }
  .dashboard-header {
    display: grid;
    gap: 10px;
    align-items: start;
  }
  .header-profile {
    width: 100%;
    justify-content: flex-end;
    gap: 10px !important;
  }
  #openInviteModal {
    flex: 0 1 auto;
    min-width: 0;
    font-size: 13px;
    padding: 10px 12px;
    margin-right: auto;
  }
  .header-bell {
    margin-left: auto;
  }
  .notifications-panel {
    right: 0;
    left: auto;
    width: min(420px, calc(100vw - 24px));
    max-width: calc(100vw - 24px);
    top: calc(100% + 8px);
    max-height: min(62vh, 420px);
  }
  .view-section,
  .card {
    min-width: 0;
  }
  table {
    white-space: normal;
    table-layout: fixed;
  }
  th,
  td {
    padding: 10px 8px;
    font-size: 12px;
    word-break: break-word;
  }
  .invitados-table th:nth-child(2),
  .invitados-table td:nth-child(2) {
    width: 96px;
    min-width: 96px;
    white-space: nowrap;
    word-break: normal;
    overflow-wrap: normal;
  }
}

@media (max-width: 500px) {
  .metrics-grid {
    grid-template-columns: 1fr;
  }
  .hero-event-card {
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }
}

/* Overlays / Modals */
.modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(15, 23, 42, 0.4);
  padding: var(--spacing-3);
  z-index: 100;
  backdrop-filter: blur(4px);
}
.modal-card {
  width: min(500px, 100%);
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 32px;
}
.modal-form {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}
.modal-form label { font-size: 13px; font-weight: 600; color: var(--text-secondary); margin-bottom: -4px;}
.modal-form input, .modal-form select {
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  padding: 12px;
}
.modal-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 16px;
}

.action-row {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.upload-zone {
  border: 2px dashed var(--border-dark);
  border-radius: var(--radius-sm);
  padding: 18px;
  background: #fafbfc;
  display: grid;
  gap: 10px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}

.upload-zone p {
  margin: 0;
}

.upload-zone-hint {
  font-size: 13px;
  color: var(--text-secondary);
}

.upload-zone.is-dragover {
  border-color: var(--primary);
  background: #eef4ff;
  transform: translateY(-1px);
}

.upload-zone.is-uploading {
  opacity: 0.75;
  pointer-events: none;
}

/* ==========================================================
   Lector QR Styles (Restored & Modernized)
   ========================================================== */

.lector-body {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  padding: 0;
  background: linear-gradient(160deg, #eef2ff 0%, #f8fbff 52%, #edf3f8 100%);
}

.lector-app {
  width: min(560px, 100vw);
  height: 100vh;
  height: 100dvh;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 46px rgba(15, 23, 42, 0.18);
  overflow: hidden;
}

.lector-header {
  flex-shrink: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-3);
  border-bottom: 1px solid #dfe8ff;
  background: linear-gradient(180deg, #ffffff 0%, #f4f8ff 100%);
}

.mini-brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2px;
}

#eventoMeta, #lectorMeta {
  display: block;
  color: #5b6f8f;
  font-size: 12px;
}

.header-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  background: #f4f7ff;
  padding: 8px 12px;
  border-radius: 12px;
  border: 1px solid #dae4ff;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-dot.online { background: var(--success); box-shadow: 0 0 8px rgba(16, 185, 129, 0.4); }
.status-dot.local { background: var(--warning); box-shadow: 0 0 8px rgba(245, 158, 11, 0.4); }
.status-dot.offline { background: var(--error); box-shadow: 0 0 8px rgba(239, 68, 68, 0.4); }

.camera-stage {
  flex: 1 1 auto;
  flex-shrink: 1;
  position: relative;
  overflow: hidden;
  background: #070b16;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  aspect-ratio: auto;
  min-height: clamp(250px, 42vh, 420px);
  max-height: 58vh;
}

#video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
}

#video::-webkit-media-controls {
  display: none !important;
}

#video::-webkit-media-controls-start-playback-button {
  display: none !important;
  -webkit-appearance: none;
}

.camera-frozen {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.camera-mask {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  width: clamp(170px, 55%, 260px);
  aspect-ratio: 1;
  border-radius: 18px;
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.6);
  pointer-events: none;
  z-index: 2;
}

.scan-frame {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  width: clamp(170px, 55%, 260px);
  aspect-ratio: 1;
  border: 3px dashed #6f78ff;
  border-radius: 18px;
  z-index: 2;
  box-shadow: inset 0 0 20px rgba(111, 120, 255, 0.22);
}

.guest-panel {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: 12px 14px 10px;
  background: transparent;
  gap: 10px;
  overflow-y: visible;
}

.guest-info {
  text-align: left;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 4px;
  padding: 12px;
  border: 1px solid #dbe5ff;
  border-radius: 14px;
  background: #ffffff;
}

.guest-info h3 {
  color: var(--success);
  margin-bottom: 4px;
  font-size: 18px;
}

.guest-info p {
  margin: 0;
  font-size: 14px;
  color: var(--text);
}

.guest-info small {
  color: var(--text-secondary);
  font-size: 12px;
  margin-top: 4px;
}

.guest-info .placeholder-text {
  color: #6b7b98;
  font-size: 16px;
  font-style: normal;
  margin: 0;
  text-align: center;
  padding: 12px 8px;
}

.guest-actions-row {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.guest-actions-row .btn {
  flex: 1 1 0;
  min-height: 46px;
  padding: 10px 12px;
  font-size: 22px;
  font-weight: 700;
  border-radius: 14px;
}

.overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(4px);
  display: grid;
  place-items: center;
  z-index: 20;
}

.overlay-card {
  background: var(--surface);
  width: 85%;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  text-align: center;
  padding: 32px 24px;
}

.login-card {
  max-width: 360px;
}
.login-card h3 {
  margin: 0 0 16px;
  color: var(--text);
}
.login-card input {
  width: 100%;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  padding: 12px;
  background: var(--surface);
  font-size: 15px;
}
.login-card input:focus {
  border-color: var(--primary);
  outline: none;
}

.pin-help {
  margin: 0;
  color: var(--text-secondary);
  font-size: 13px;
}

.pin-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
}

.pin-digit {
  text-align: center;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0;
  padding: 12px 0;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  margin: 0 auto 16px;
  animation: spin 0.8s linear infinite;
}

.result-modal {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 88%;
  max-width: 350px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  background: var(--surface);
  padding: 24px;
  z-index: 30;
  text-align: center;
}
.result-modal.success { border-top: 6px solid var(--success); }
.result-modal.error { border-top: 6px solid var(--error); }
.result-modal.warn { border-top: 6px solid var(--warning); }

.lector-footer {
  flex-shrink: 0;
  padding: 12px 14px 14px;
  background: linear-gradient(180deg, #f8fbff 0%, #f0f5ff 100%);
  border-top: 1px solid #dbe5ff;
}

.footer-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

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

.demo-tour-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.72);
  backdrop-filter: blur(3px);
  z-index: 200;
}

.demo-tour-highlight {
  position: fixed;
  border: 2px solid #f59e0b;
  border-radius: 16px;
  box-shadow: 0 0 0 9999px rgba(15, 23, 42, 0), 0 14px 36px rgba(15, 23, 42, 0.3);
  pointer-events: none;
  z-index: 210;
  transition: all 0.22s ease;
}

.demo-tour-dialog {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  width: min(440px, calc(100vw - 24px));
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 24px 48px rgba(15, 23, 42, 0.36);
  padding: 18px 18px 16px;
  z-index: 220;
  display: grid;
  gap: 12px;
}

.demo-tour-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #92400e;
}

.demo-tour-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
}

.demo-tour-copy {
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-secondary);
}

.demo-tour-progress {
  font-size: 12px;
  color: var(--text-secondary);
}

.demo-tour-actions {
  display: flex;
  gap: 10px;
  justify-content: space-between;
  flex-wrap: wrap;
}

.demo-tour-actions-main {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.demo-tour-hidden-target {
  visibility: hidden;
}

@media (max-width: 640px) {
  .demo-tour-dialog {
    bottom: 14px;
    border-radius: 16px;
    padding: 16px;
  }

  .demo-tour-actions {
    flex-direction: column;
  }

  .demo-tour-actions-main {
    width: 100%;
  }

  .demo-tour-actions .btn,
  .demo-tour-actions-main .btn {
    width: 100%;
  }
}