/* ==============================================================================
   3N ADMIN DASHBOARD — STYLESHEET
   Visual Identity: Black, White, Minimalist Luxury
   Typography: Bricolage Grotesque (Headings), Open Sans (Body/UI)
   ============================================================================== */

:root {
  --font-heading: 'Bricolage Grotesque', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* 3N Approved Brand Colors */
  --color-black: #000000;
  --color-dark: #222222;
  --color-dark-alt: #1F1F1F;
  --color-border: #EEEEEE;
  --color-subtle-bg: #F5F5F5;
  --color-accent-red: #CA192C;

  --color-gray-900: #18181B;
  --color-gray-800: #27272A;
  --color-gray-700: #3F3F46;
  --color-gray-600: #52525B;
  --color-gray-500: #71717A;
  --color-gray-400: #A1A1AA;
  --color-gray-300: #D4D4D8;
  --color-gray-200: #EEEEEE;
  --color-gray-100: #F5F5F5;
  --color-gray-50: #FAFAFA;
  --color-white: #FFFFFF;

  --color-blue-500: #2563EB;
  --color-blue-50: #EFF6FF;
  --color-green-600: #16A34A;
  --color-green-50: #F0FDF4;
  --color-amber-600: #D97706;
  --color-amber-50: #FFFBEB;
  --color-red-600: #CA192C;
  --color-red-50: #FEF2F2;

  --border-radius-sm: 4px;
  --border-radius: 8px;
  --border-radius-lg: 14px;
  --border-radius-pill: 9999px;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.12), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

body {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-gray-900);
  background-color: var(--color-gray-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-black);
  letter-spacing: -0.02em;
  font-weight: 700;
}

/* Utilities */
.hidden { display: none !important; }
.text-center { text-align: center; }
.text-blue { color: var(--color-blue-500); }
.text-green { color: var(--color-green-600); }
.text-red { color: var(--color-red-600); }
.text-orange { color: var(--color-amber-600); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--border-radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease-in-out;
  text-decoration: none;
  line-height: 1.2;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--color-black);
  color: var(--color-white);
  border-color: var(--color-black);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-dark-alt);
  border-color: var(--color-dark-alt);
}

.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-gray-900);
  border-color: var(--color-gray-300);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-gray-100);
  border-color: var(--color-gray-400);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-black);
  border-color: var(--color-black);
}

.btn-outline:hover:not(:disabled) {
  background-color: var(--color-black);
  color: var(--color-white);
}

.btn-danger {
  background-color: var(--color-red-600);
  color: var(--color-white);
  border-color: var(--color-red-600);
}

.btn-danger:hover:not(:disabled) {
  background-color: #B91C1C;
}

.btn-sm {
  font-size: 12px;
  padding: 6px 12px;
}

.btn-block {
  width: 100%;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 8px;
  border-radius: var(--border-radius-pill);
}

.badge-admin {
  background-color: var(--color-black);
  color: var(--color-white);
}

.badge-draft {
  background-color: var(--color-gray-200);
  color: var(--color-gray-700);
}

.badge-scheduled {
  background-color: var(--color-blue-50);
  color: var(--color-blue-500);
  border: 1px solid rgba(37, 99, 235, 0.2);
}

.badge-sending {
  background-color: var(--color-amber-50);
  color: var(--color-amber-600);
  border: 1px solid rgba(217, 119, 6, 0.2);
}

.badge-sent {
  background-color: var(--color-green-50);
  color: var(--color-green-600);
  border: 1px solid rgba(22, 163, 74, 0.2);
}

.badge-failed {
  background-color: var(--color-red-50);
  color: var(--color-red-600);
  border: 1px solid rgba(220, 38, 38, 0.2);
}

.badge-cancelled {
  background-color: var(--color-gray-100);
  color: var(--color-gray-500);
  border: 1px solid var(--color-gray-300);
}

.badge-info {
  background-color: var(--color-gray-100);
  color: var(--color-gray-700);
  border: 1px solid var(--color-gray-300);
}

/* Alerts */
.alert {
  padding: 12px 16px;
  border-radius: var(--border-radius-sm);
  font-size: 13px;
  margin-bottom: 1rem;
}

.alert-error {
  background-color: var(--color-red-50);
  color: var(--color-red-600);
  border: 1px solid rgba(220, 38, 38, 0.3);
}

.alert-warning {
  background-color: var(--color-amber-50);
  color: var(--color-amber-600);
  border: 1px solid rgba(217, 119, 6, 0.3);
}

.alert-success {
  background-color: var(--color-green-50);
  color: var(--color-green-600);
  border: 1px solid rgba(22, 163, 74, 0.3);
}

/* Header */
.app-header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-monogram {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 20px;
  background-color: var(--color-black);
  color: var(--color-white);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  letter-spacing: -0.04em;
}

.brand-details {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  color: var(--color-black);
}

.brand-subtitle {
  font-size: 11px;
  color: var(--color-gray-500);
  font-family: monospace;
}

.auth-status {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-email {
  font-size: 13px;
  color: var(--color-gray-700);
  font-weight: 500;
}

/* Authentication Screen */
.auth-view {
  min-height: calc(100vh - 65px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius);
  padding: 36px;
  box-shadow: var(--shadow-md);
}

.auth-card-header {
  text-align: center;
  margin-bottom: 28px;
}

.auth-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background-color: var(--color-black);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 24px;
  border-radius: 6px;
  margin-bottom: 16px;
}

.auth-card-header h2 {
  font-size: 20px;
  margin-bottom: 8px;
}

.auth-card-header p {
  color: var(--color-gray-500);
  font-size: 13px;
}

.auth-form .form-group {
  margin-bottom: 18px;
}

.auth-footer {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--color-gray-100);
  text-align: center;
}

.auth-footer p {
  font-size: 11px;
  color: var(--color-gray-400);
  line-height: 1.4;
}

/* Forms */
.form-group {
  margin-bottom: 20px;
}

.label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-black);
  margin-bottom: 6px;
}

.char-counter {
  font-size: 11px;
  color: var(--color-gray-400);
  font-family: monospace;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="datetime-local"],
select,
textarea {
  width: 100%;
  padding: 10px 12px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--color-black);
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--border-radius-sm);
  outline: none;
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-black);
  box-shadow: 0 0 0 1px var(--color-black);
}

.form-hint {
  font-size: 11px;
  color: var(--color-gray-500);
  margin-top: 5px;
}

/* Radio Card Grid (Category selector) */
.radio-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.radio-card {
  position: relative;
  display: flex;
  align-items: flex-start;
  padding: 14px;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--border-radius-sm);
  background-color: var(--color-white);
  cursor: pointer;
  transition: all 0.15s ease;
}

.radio-card input {
  margin-right: 10px;
  margin-top: 2px;
  accent-color: var(--color-black);
}

.radio-card:has(input:checked) {
  border-color: var(--color-black);
  background-color: var(--color-gray-50);
  box-shadow: inset 0 0 0 1px var(--color-black);
}

.radio-card-title {
  display: block;
  font-weight: 600;
  font-size: 13px;
  color: var(--color-black);
  margin-bottom: 2px;
}

.radio-card-desc {
  display: block;
  font-size: 11px;
  color: var(--color-gray-500);
  line-height: 1.3;
}

/* Destination & Timing Selectors */
.destination-selector,
.timing-toggle {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.dest-radio {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  padding: 8px 14px;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--border-radius-sm);
  background-color: var(--color-white);
  cursor: pointer;
  transition: all 0.15s ease;
}

.dest-radio input {
  accent-color: var(--color-black);
}

.dest-radio:has(input:checked) {
  border-color: var(--color-black);
  background-color: var(--color-black);
  color: var(--color-white);
}

/* Audience Card */
.audience-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius);
  padding: 16px;
  margin-bottom: 20px;
}

.audience-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.audience-header h4 {
  font-size: 14px;
}

.form-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.form-group-inline {
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-group-inline label {
  margin-bottom: 0;
  white-space: nowrap;
}

.form-group-inline select {
  width: auto;
  padding: 6px 10px;
}

.audience-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  background-color: var(--color-gray-50);
  padding: 12px;
  border-radius: var(--border-radius-sm);
  margin-bottom: 10px;
}

.metric-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.metric-value {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-black);
}

.metric-label {
  font-size: 11px;
  color: var(--color-gray-500);
}

.audience-disclaimer {
  font-size: 11px;
  color: var(--color-gray-500);
  line-height: 1.4;
}

/* Dashboard Container & Tabs */
.dashboard-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

.dashboard-tabs {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--color-gray-200);
  margin-bottom: 24px;
}

.tab-btn {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 18px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--color-gray-500);
  cursor: pointer;
  transition: all 0.15s ease;
}

.tab-btn:hover {
  color: var(--color-black);
}

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

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Section Header */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.section-desc {
  font-size: 13px;
  color: var(--color-gray-500);
  margin-top: 2px;
}

.header-actions {
  display: flex;
  gap: 8px;
}

/* Filter Bar */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.filter-bar label {
  margin-bottom: 0;
  color: var(--color-gray-600);
}

.filter-pills {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.pill-btn {
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--border-radius-pill);
  border: 1px solid var(--color-gray-200);
  background-color: var(--color-white);
  color: var(--color-gray-600);
  cursor: pointer;
  transition: all 0.15s ease;
}

.pill-btn:hover {
  border-color: var(--color-gray-400);
}

.pill-btn.active {
  background-color: var(--color-black);
  color: var(--color-white);
  border-color: var(--color-black);
}

/* Data Table */
.table-container {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius);
  overflow-x: auto;
  box-shadow: var(--shadow-sm);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.data-table th {
  background-color: var(--color-gray-50);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-500);
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-gray-200);
}

.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-gray-100);
  vertical-align: middle;
}

.data-table tbody tr:hover {
  background-color: var(--color-gray-50);
}

.campaign-title-cell strong {
  display: block;
  font-size: 14px;
  color: var(--color-black);
}

.campaign-body-snippet {
  font-size: 12px;
  color: var(--color-gray-500);
  max-width: 340px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.campaign-dest-tag {
  font-size: 11px;
  font-family: monospace;
  background-color: var(--color-gray-100);
  padding: 2px 6px;
  border-radius: 3px;
}

.table-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

/* Composer Layout */
.composer-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 32px;
  align-items: start;
}

.composer-form-col {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.composer-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--color-gray-100);
}

.primary-actions {
  display: flex;
  gap: 10px;
}

/* Smartphone Lock Screen Preview */
.preview-sticky {
  position: sticky;
  top: 85px;
}

.preview-heading {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-500);
  margin-bottom: 12px;
}

.phone-frame {
  width: 340px;
  height: 600px;
  background-color: #0F0F10;
  border: 8px solid #27272A;
  border-radius: 44px;
  position: relative;
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.phone-speaker {
  width: 80px;
  height: 5px;
  background-color: #3F3F46;
  border-radius: 3px;
  margin: 12px auto 0;
  z-index: 10;
}

.phone-lockscreen {
  flex: 1;
  padding: 40px 16px 20px;
  background: radial-gradient(circle at 50% 20%, #27272A 0%, #09090B 100%);
  color: var(--color-white);
  display: flex;
  flex-direction: column;
}

.lockscreen-header {
  text-align: center;
  margin-bottom: 30px;
}

.lockscreen-time {
  display: block;
  font-family: -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 52px;
  font-weight: 200;
  line-height: 1;
  letter-spacing: -0.03em;
}

.lockscreen-date {
  font-size: 13px;
  font-weight: 500;
  opacity: 0.8;
  margin-top: 4px;
  display: block;
}

/* Push Notification Card inside Lockscreen */
.lockscreen-notification {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 18px;
  padding: 14px;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.notif-header {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}

.notif-app-icon {
  width: 20px;
  height: 20px;
  background-color: var(--color-white);
  color: var(--color-black);
  font-family: var(--font-heading);
  font-size: 10px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 5px;
}

.notif-app-name {
  font-size: 12px;
  font-weight: 600;
  opacity: 0.9;
}

.notif-dot {
  font-size: 10px;
  opacity: 0.5;
}

.notif-time {
  font-size: 11px;
  opacity: 0.6;
}

.notif-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 3px;
  line-height: 1.3;
  word-break: break-word;
}

.notif-body {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.35;
  word-break: break-word;
}

.notif-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 10px;
  opacity: 0.75;
}

.notif-category-tag {
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.preview-note {
  font-size: 11px;
  color: var(--color-gray-500);
  margin-top: 12px;
  text-align: center;
}

/* Diagnostics View */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
}

.stat-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-500);
  margin-bottom: 6px;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 800;
  color: var(--color-black);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-sub {
  font-size: 11px;
  color: var(--color-gray-400);
}

.diag-breakdown-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius);
  padding: 20px;
}

.diag-breakdown-card h4 {
  font-size: 14px;
  margin-bottom: 14px;
}

.diag-note {
  margin-top: 18px;
  padding: 12px 16px;
  background-color: var(--color-gray-50);
  border-left: 3px solid var(--color-black);
  font-size: 12px;
  color: var(--color-gray-700);
  line-height: 1.4;
}

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 16px;
}

.modal-card {
  background-color: var(--color-white);
  border-radius: var(--border-radius);
  width: 100%;
  max-width: 520px;
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  animation: modalScale 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-lg {
  max-width: 800px;
}

@keyframes modalScale {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h4 {
  font-size: 16px;
}

.close-modal-btn {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--color-gray-400);
  cursor: pointer;
  line-height: 1;
}

.close-modal-btn:hover {
  color: var(--color-black);
}

.modal-body {
  padding: 24px;
  max-height: 70vh;
  overflow-y: auto;
}

.modal-desc {
  font-size: 13px;
  color: var(--color-gray-600);
  margin-bottom: 18px;
}

.modal-footer {
  padding: 16px 24px;
  background-color: var(--color-gray-50);
  border-top: 1px solid var(--color-gray-200);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* Confirm Send Modal Special Styling */
.confirm-summary {
  background-color: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius-sm);
  padding: 14px;
  margin-top: 14px;
}

.confirm-item {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 13px;
  border-bottom: 1px solid var(--color-gray-200);
}

.confirm-item:last-child {
  border-bottom: none;
}

.confirm-label {
  color: var(--color-gray-600);
}

/* ==============================================================================
   PHASE 5A: OVERVIEW, DEVICES, ANALYTICS & MODALS
   ============================================================================== */

/* Overview Metrics Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.metric-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 144px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.metric-card:hover {
  border-color: var(--color-dark);
  box-shadow: var(--shadow-md);
}

.metric-card-muted {
  background: var(--color-subtle-bg);
  border-style: dashed;
  opacity: 0.85;
}

.metric-card-muted:hover {
  border-color: var(--color-gray-400);
}

.metric-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 8px;
}

.metric-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-gray-600);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.metric-tag {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-gray-500);
  background: var(--color-subtle-bg);
  padding: 2px 7px;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--color-border);
  white-space: nowrap;
}

.metric-main-value {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 700;
  color: var(--color-black);
  line-height: 1.1;
  margin: 4px 0 8px;
}

.metric-subtext {
  font-size: 11px;
  color: var(--color-gray-500);
  line-height: 1.35;
}

.metric-subtext code {
  font-size: 10px;
  background: var(--color-subtle-bg);
  padding: 1px 4px;
  border-radius: 3px;
  font-family: monospace;
  border: 1px solid var(--color-border);
  color: var(--color-gray-800);
}

/* Platform Bar */
.platform-bar-container {
  margin: 6px 0 8px;
}

.platform-bar {
  height: 8px;
  border-radius: 4px;
  overflow: hidden;
  display: flex;
  background: var(--color-gray-200);
  margin-bottom: 6px;
}

.bar-fill-ios {
  background-color: var(--color-black);
  height: 100%;
  transition: width 0.3s ease;
}

.bar-fill-android {
  background-color: var(--color-green-600);
  height: 100%;
  transition: width 0.3s ease;
}

.platform-legend {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--color-gray-700);
}

/* Token Health Row */
.token-health-row {
  display: flex;
  align-items: center;
  justify-content: space-around;
  margin: 6px 0 8px;
}

.health-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.health-val {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.1;
}

.health-label {
  font-size: 11px;
  color: var(--color-gray-500);
  margin-top: 2px;
}

.health-divider {
  width: 1px;
  height: 28px;
  background: var(--color-border);
}

/* Untracked Badge */
.badge-untracked {
  background: var(--color-subtle-bg);
  color: var(--color-gray-500);
  border: 1px solid var(--color-border);
  font-size: 10px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: var(--border-radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Filter Pills */
.filter-pills {
  display: flex;
  gap: 4px;
  background: var(--color-subtle-bg);
  padding: 3px;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--color-border);
}

.pill-btn {
  background: transparent;
  border: none;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-gray-600);
  padding: 5px 12px;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.pill-btn:hover {
  color: var(--color-black);
}

.pill-btn.active {
  background: var(--color-white);
  color: var(--color-black);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

/* Quick Navigation Cards */
.quick-nav-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 14px;
  margin-bottom: 24px;
}

.quick-nav-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.quick-nav-card:hover {
  border-color: var(--color-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.quick-nav-icon {
  font-size: 24px;
  width: 44px;
  height: 44px;
  background: var(--color-subtle-bg);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.quick-nav-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.quick-nav-content strong {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-black);
}

.quick-nav-content span {
  font-size: 12px;
  color: var(--color-gray-500);
  line-height: 1.35;
}

/* Device Metrics Grid (3N Visual Language) */
.device-metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

@media (max-width: 900px) {
  .device-metrics-grid {
    grid-template-columns: 1fr;
  }
}

/* Device Sub-navigation Pills (3N Visual Language) */
.device-subnav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.device-view-pills {
  display: inline-flex;
  gap: 6px;
  background: var(--color-subtle-bg);
  padding: 4px;
  border-radius: var(--border-radius-pill);
  border: 1px solid var(--color-border);
}

.device-view-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: none;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-gray-600);
  padding: 6px 14px;
  border-radius: var(--border-radius-pill);
  cursor: pointer;
  transition: all 0.15s ease-in-out;
  white-space: nowrap;
}

.device-view-pill:hover {
  color: var(--color-black);
}

.device-view-pill.active {
  background: var(--color-black);
  color: var(--color-white);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.pill-count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  padding: 1px 7px;
  border-radius: var(--border-radius-pill);
  background: rgba(0, 0, 0, 0.08);
  color: inherit;
  transition: all 0.15s ease-in-out;
}

.device-view-pill.active .pill-count-badge {
  background: rgba(255, 255, 255, 0.2);
  color: var(--color-white);
}

/* Device Inventory & Filter Bar */
.device-filter-bar {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 14px 18px;
  margin-bottom: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}

.search-box {
  flex: 1;
  min-width: 280px;
}

.search-box input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  font-size: 13px;
  font-family: var(--font-body);
  background: var(--color-subtle-bg);
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.search-box input:focus {
  outline: none;
  background: var(--color-white);
  border-color: var(--color-black);
}

.filter-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--color-gray-600);
}

.filter-group label {
  font-weight: 600;
}

.filter-group select {
  padding: 6px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  font-size: 12px;
  background: var(--color-white);
  cursor: pointer;
}

.inventory-summary-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--color-gray-600);
  padding: 4px 2px 10px;
}

/* Pagination Bar */
.pagination-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 18px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.pagination-info {
  font-size: 12px;
  color: var(--color-gray-500);
}

.pagination-buttons {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-indicator {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-gray-700);
  min-width: 80px;
  text-align: center;
}

/* Device Table Cell Badges & Elements */
.masked-id {
  font-family: monospace;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-black);
}

.device-label-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  background: #FEF3C7;
  color: #92400E;
  padding: 2px 6px;
  border-radius: var(--border-radius-sm);
  margin-top: 3px;
}

.masked-token {
  font-family: monospace;
  font-size: 11px;
  color: var(--color-gray-500);
}

.copy-btn {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  padding: 2px 6px;
  font-size: 11px;
  cursor: pointer;
  margin-left: 6px;
  color: var(--color-gray-600);
  transition: all 0.15s ease;
}

.copy-btn:hover {
  background: var(--color-subtle-bg);
  color: var(--color-black);
  border-color: var(--color-dark);
}

.badge-customer {
  background: #ECFDF5;
  color: #047857;
  border: 1px solid #A7F3D0;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: var(--border-radius-sm);
}

.badge-guest {
  background: var(--color-subtle-bg);
  color: var(--color-gray-600);
  border: 1px solid var(--color-border);
  font-size: 11px;
  font-weight: 500;
  padding: 2px 6px;
  border-radius: var(--border-radius-sm);
}

.badge-test-active {
  background: #EEF2FF;
  color: #4338CA;
  border: 1px solid #C7D2FE;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: var(--border-radius-sm);
}

.badge-standard {
  background: var(--color-subtle-bg);
  color: var(--color-gray-600);
  border: 1px solid var(--color-border);
  font-size: 11px;
  font-weight: 500;
  padding: 2px 6px;
  border-radius: var(--border-radius-sm);
}

.badge-secondary {
  background: var(--color-subtle-bg);
  color: var(--color-gray-600);
  border: 1px solid var(--color-border);
}

.badge-no-token {
  background: var(--color-gray-100);
  color: var(--color-gray-600);
  border: 1px solid var(--color-gray-300);
  font-size: 11px;
  font-weight: 600;
}

.badge-inactive {
  background: #FEF2F2;
  color: #991B1B;
  border: 1px solid #FECACA;
  font-size: 11px;
  font-weight: 600;
}

.badge-pending {
  background: var(--color-amber-50);
  color: var(--color-amber-600);
  border: 1px solid rgba(217, 119, 6, 0.2);
  font-size: 11px;
  font-weight: 600;
}

.cell-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Analytics Delivery Funnels */
.funnel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 24px;
}

.funnel-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.funnel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.funnel-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--border-radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-campaign {
  background: #EEF2FF;
  color: #4338CA;
}

.badge-transactional {
  background: #ECFDF5;
  color: #047857;
}

.badge-test {
  background: #FEF3C7;
  color: #B45309;
}

.funnel-title {
  font-size: 12px;
  color: var(--color-gray-500);
}

.funnel-stats {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.funnel-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--color-gray-700);
}

.funnel-row strong {
  font-size: 15px;
  font-family: var(--font-heading);
}

.funnel-sub {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--color-border);
  font-size: 11px;
  color: var(--color-gray-500);
}

/* Analytics Two-Column & Error Distribution */
.sub-heading {
  font-size: 16px;
  margin: 24px 0 14px;
  font-family: var(--font-heading);
  color: var(--color-black);
}

.analytics-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 24px;
}

.analytics-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.analytics-card h4 {
  font-size: 15px;
  margin-bottom: 4px;
}

.analytics-card .card-desc {
  font-size: 12px;
  color: var(--color-gray-500);
  margin-bottom: 16px;
}

.category-dist-rows {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 14px 0 20px;
}

.category-dist-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: var(--color-subtle-bg);
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--color-border);
  font-size: 13px;
}

.category-name {
  font-weight: 600;
  color: var(--color-black);
}

.category-count {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-gray-700);
}

.phase5b-preview-box {
  background: var(--color-subtle-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 16px;
  margin-top: 16px;
}

.preview-badge-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.phase5b-preview-box p {
  font-size: 12px;
  color: var(--color-gray-600);
  line-height: 1.4;
  margin-bottom: 12px;
}

.phase5b-stats-row {
  display: flex;
  justify-content: space-between;
  padding-top: 10px;
  border-top: 1px solid var(--color-border);
}

.p5b-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.p5b-label {
  font-size: 11px;
  color: var(--color-gray-500);
}

.p5b-val {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-gray-900);
}

/* Engagement Analytics Enhancements (Phase 5B.3) */
.analytics-controls-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 12px 16px;
  margin-bottom: 24px;
}

.analytics-filter-group {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.analytics-select-wrapper {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-gray-700);
}

.analytics-select-wrapper select {
  padding: 6px 10px;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--color-gray-300);
  background: var(--color-white);
  font-size: 12px;
  font-family: var(--font-body);
  color: var(--color-gray-900);
  outline: none;
  cursor: pointer;
}

.analytics-select-wrapper select:focus {
  border-color: var(--color-black);
}

.metric-split-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin: 8px 0;
  font-size: 12px;
  color: var(--color-gray-700);
  background: var(--color-subtle-bg);
  padding: 6px 10px;
  border-radius: var(--border-radius-sm);
}

.metric-split-row strong {
  color: var(--color-black);
  font-family: var(--font-heading);
}

.funnel-engagement-box {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--color-border);
}

.funnel-engagement-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-500);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.platform-comparison-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 20px;
  margin-bottom: 24px;
}

.platform-comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 14px;
}

.platform-col {
  background: var(--color-subtle-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  padding: 16px;
}

.platform-col-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

.platform-col-title {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
}

.platform-stats-table {
  width: 100%;
  border-collapse: collapse;
}

.platform-stats-table tr {
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.platform-stats-table td {
  padding: 6px 0;
  font-size: 12px;
}

.platform-stats-table td:last-child {
  text-align: right;
  font-weight: 600;
  font-family: var(--font-heading);
}

.campaign-engagement-section {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 20px;
  margin-bottom: 24px;
}

.table-badge-ctr {
  background: var(--color-blue-50);
  color: var(--color-blue-500);
  border: 1px solid rgba(37, 99, 235, 0.2);
  padding: 2px 6px;
  border-radius: var(--border-radius-pill);
  font-size: 11px;
  font-weight: 600;
}

.table-badge-open {
  background: var(--color-green-50);
  color: var(--color-green-600);
  border: 1px solid rgba(22, 163, 74, 0.2);
  padding: 2px 6px;
  border-radius: var(--border-radius-pill);
  font-size: 11px;
  font-weight: 600;
}

.metric-definitions-card {
  background: var(--color-subtle-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 16px 20px;
  margin-top: 24px;
  font-size: 12px;
  color: var(--color-gray-600);
}

.metric-definitions-card h5 {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 8px;
}

.metric-definitions-card ul {
  padding-left: 18px;
  margin-top: 6px;
  line-height: 1.6;
}

.metric-definitions-card li {
  margin-bottom: 4px;
}

/* Modals Enhancements */
.code-box {
  font-family: monospace;
  background: var(--color-subtle-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  padding: 8px 12px;
  font-size: 12px;
  color: var(--color-gray-800);
  word-break: break-all;
}

.modal-divider {
  border: 0;
  border-top: 1px solid var(--color-border);
  margin: 16px 0;
}

.remove-mapping-section {
  margin-top: 16px;
}

.danger-zone {
  background: #FEF2F2;
  border: 1px solid #FECACA;
  border-radius: var(--border-radius-sm);
  padding: 14px;
}

.danger-zone label {
  font-weight: 700;
  color: var(--color-accent-red);
  display: block;
  margin-bottom: 4px;
  font-size: 13px;
}

.danger-desc {
  font-size: 12px;
  color: #7F1D1D;
  margin-bottom: 12px;
  line-height: 1.4;
}

.btn-outline-danger {
  background: transparent;
  border: 1px solid var(--color-accent-red);
  color: var(--color-accent-red);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-outline-danger:hover {
  background: var(--color-accent-red);
  color: var(--color-white);
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 18px;
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.detail-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.detail-value {
  font-size: 13px;
  color: var(--color-gray-900);
}

.preferences-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 8px;
}

.preferences-table th,
.preferences-table td {
  padding: 8px 12px;
  font-size: 12px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
}

.preferences-table th {
  background: var(--color-subtle-bg);
  font-weight: 600;
  color: var(--color-gray-700);
}

/* ==============================================================================
   RESPONSIVE ADJUSTMENTS
   ============================================================================== */
@media (max-width: 1200px) {
  .metrics-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .funnel-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1024px) {
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .quick-nav-grid {
    grid-template-columns: 1fr;
  }
  .analytics-two-col {
    grid-template-columns: 1fr;
  }
  .composer-grid {
    grid-template-columns: 1fr;
  }
  .preview-sticky {
    position: static;
    margin-top: 24px;
  }
  .phone-frame {
    margin: 0 auto;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .header-container {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .dashboard-tabs {
    overflow-x: auto;
    white-space: nowrap;
    padding-bottom: 4px;
  }
  .metrics-grid {
    grid-template-columns: 1fr;
  }
  .device-filter-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .filter-controls {
    flex-direction: column;
    align-items: stretch;
  }
  .filter-group {
    justify-content: space-between;
  }
  .radio-card-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .audience-metrics {
    grid-template-columns: 1fr;
  }
  .detail-grid {
    grid-template-columns: 1fr;
  }
  .platform-comparison-grid {
    grid-template-columns: 1fr;
  }
}