/**
 * AI Automation Customer Portal - Design System
 * Professional & Trustworthy Design
 */

/* ========================================
   GOOGLE FONTS
======================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ========================================
   CSS VARIABLES (Design Tokens)
======================================== */
:root {
  /* Colors - Professional Palette (simplified, more trustworthy) */
  --color-primary: #1d4ed8; /* blue-700 */
  --color-primary-dark: #1e3a8a; /* blue-800 */
  --color-primary-light: #3b82f6; /* blue-500 */

  --color-secondary: #0f766e; /* teal-700 */
  --color-secondary-dark: #115e59;
  --color-secondary-light: #14b8a6;

  --color-accent: #f97316; /* soft orange for highlights only */
  --color-accent-dark: #ea580c;

  --color-danger: #ef4444;
  --color-danger-dark: #dc2626;

  --color-warning: #f59e0b;
  --color-info: #3b82f6;
  --color-success: #10b981;

  /* Neutral Colors */
  --color-dark: #1e293b;
  --color-dark-2: #334155;
  --color-dark-3: #475569;

  --color-gray: #64748b;
  --color-gray-light: #94a3b8;
  --color-gray-lighter: #cbd5e1;

  --color-light: #f8fafc;
  --color-light-2: #f1f5f9;
  --color-light-3: #e2e8f0;

  --color-white: #ffffff;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #1d4ed8 0%, #1e3a8a 100%);
  --gradient-secondary: linear-gradient(135deg, #0f766e 0%, #115e59 100%);
  --gradient-sunset: linear-gradient(135deg, #1d4ed8 0%, #0f766e 100%);
  --gradient-ocean: linear-gradient(135deg, #1d4ed8 0%, #0f766e 100%);
  --gradient-danger: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --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, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   RESET & BASE STYLES
======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-dark);
  background-color: var(--color-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--color-primary-dark);
}

/* ========================================
   TYPOGRAPHY
======================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-dark);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.75rem;
}

h4 {
  font-size: 1.5rem;
}

h5 {
  font-size: 1.25rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-bottom: var(--spacing-md);
}

/* ========================================
   CONTAINER & LAYOUT
======================================== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-lg);
}

/* ========================================
   GRID SYSTEM
======================================== */
.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 calc(var(--spacing-md) * -0.5);
}

.col {
  flex: 1;
  padding: 0 calc(var(--spacing-md) * 0.5);
}

.col-1 {
  width: 8.333%;
}

.col-2 {
  width: 16.666%;
}

.col-3 {
  width: 25%;
}

.col-4 {
  width: 33.333%;
}

.col-6 {
  width: 50%;
}

.col-8 {
  width: 66.666%;
}

.col-12 {
  width: 100%;
}

/* ========================================
   CARDS
======================================== */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-header {
  padding-bottom: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-light-3);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
  color: var(--color-dark);
}

.card-subtitle {
  font-size: 0.875rem;
  color: var(--color-gray);
  margin-top: var(--spacing-xs);
}

.card-body {
  padding: 0;
}

.card-footer {
  padding-top: var(--spacing-lg);
  margin-top: var(--spacing-lg);
  border-top: 1px solid var(--color-light-3);
}

.card-header--between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-loading {
  padding: 2rem;
  color: var(--color-gray);
}

.card-loading--compact {
  padding: 1rem;
}

.card-loading .loading-spinner {
  margin: 0 auto;
}

.card-loading-text {
  margin-top: 1rem;
  color: var(--color-gray);
}

.card-body--scrollable {
  max-height: 400px;
  overflow-y: auto;
}

/* ========================================
   BUTTONS
======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  font-family: var(--font-family);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

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

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

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: var(--gradient-secondary);
  color: var(--color-white);
}

.btn-secondary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

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

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

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.btn-block {
  display: flex;
  width: 100%;
}

/* ========================================
   FORMS
======================================== */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  color: var(--color-dark-2);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: var(--font-family);
  border: 2px solid var(--color-light-3);
  border-radius: var(--radius-md);
  background: var(--color-white);
  color: var(--color-dark);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control::placeholder {
  color: var(--color-gray-light);
}

.form-error {
  color: var(--color-danger);
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

/* ========================================
   STATS CARDS
======================================== */
.stat-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  transition: var(--transition);
}

.stat-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.stat-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--color-white);
  flex-shrink: 0;
}

.stat-icon.primary {
  background: var(--gradient-primary);
}

.stat-icon.secondary {
  background: var(--gradient-secondary);
}

.stat-icon.warning {
  background: var(--gradient-sunset);
}

.stat-icon.info {
  background: var(--gradient-ocean);
}

.stat-content {
  flex: 1;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-gray);
  margin-bottom: var(--spacing-xs);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1;
}

.stat-change {
  font-size: 0.875rem;
  margin-top: var(--spacing-sm);
}

.stat-change.positive {
  color: var(--color-success);
}

.stat-change.negative {
  color: var(--color-danger);
}

.stat-card--success {
  border-left: 4px solid var(--color-success);
}

.stat-card--danger {
  border-left: 4px solid var(--color-danger);
}

.stat-card--warning {
  border-left: 4px solid var(--color-warning);
}

/* ========================================
   TABLES
======================================== */
.table-container {
  overflow-x: auto;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead {
  background: var(--color-light-2);
}

thead th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--color-dark-2);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

tbody tr {
  border-bottom: 1px solid var(--color-light-3);
  transition: var(--transition);
}

tbody tr:hover {
  background: var(--color-light);
}

tbody td {
  padding: 1rem;
  color: var(--color-dark-3);
}

.table-loading {
  text-align: center;
  padding: 2rem;
}

/* ========================================
   BADGES
======================================== */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-success {
  background: rgba(16, 185, 129, 0.1);
  color: var (--color-success);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.1);
  color: var(--color-warning);
}

.badge-danger {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-danger);
}

.badge-info {
  background: rgba(59, 130, 246, 0.1);
  color: var(--color-info);
}

.badge-primary {
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary);
}

/* ========================================
   NAVIGATION
======================================== */
.navbar {
  background: var(--color-white);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  list-style: none;
}

.navbar-link {
  color: var(--color-dark-2);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.navbar-link:hover,
.navbar-link.active {
  background: var(--color-light-2);
  color: var(--color-primary);
}

/* ========================================
   SIDEBAR
======================================== */
.sidebar {
  width: 260px;
  height: 100vh;
  position: fixed;
  left: 0;
  top: 0;
  background: var(--color-white);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-xl);
  overflow-y: auto;
}

.sidebar-header {
  padding-bottom: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-light-3);
}

.sidebar-logo {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: var(--spacing-sm);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: rgba(15, 23, 42, 0.85);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--spacing-lg);
}

.sidebar-user-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-weight: 600;
}

.sidebar-user-avatar--danger {
  background: var(--gradient-danger);
}

.sidebar-user-info {
  flex: 1;
}

.sidebar-user-name {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-white);
}

.sidebar-user-email {
  font-size: 0.75rem;
  color: var(--color-white);
}

.sidebar-nav {
  list-style: none;
}

.sidebar-nav-item {
  margin-bottom: var(--spacing-sm);
}

.sidebar-nav-item--spacer {
  margin-top: auto;
  padding-top: 2rem;
}

.sidebar-nav-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  color: var(--color-dark-2);
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.sidebar-nav-link:hover,
.sidebar-nav-link.active {
  background: var(--gradient-primary);
  color: var(--color-white);
  transform: translateX(4px);
}

.sidebar-nav-link--primary {
  color: var(--color-primary);
}

.sidebar-nav-link--danger {
  color: var(--color-danger);
}

.sidebar-nav-icon {
  font-size: 1.25rem;
}

.sidebar-tagline {
  font-size: 0.75rem;
  color: var(--color-gray);
}

.sidebar-subtitle {
  font-size: 0.75rem;
  color: var(--color-gray);
}

.sidebar-nav-item--logout {
  margin-top: auto;
  padding-top: 2rem;
}

.sidebar-nav-link--logout {
  color: var(--color-danger);
}

/* ========================================
   MAIN CONTENT
======================================== */
.main-content {
  margin-left: 260px;
  padding: var(--spacing-2xl);
  min-height: 100vh;
}

.page-header {
  margin-bottom: var(--spacing-2xl);
}

.page-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.page-subtitle {
  color: var(--color-gray);
  font-size: 1rem;
}

/* ========================================
   LOGIN PAGE
======================================== */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-ocean);
  padding: var(--spacing-xl);
}

.login-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: var(--spacing-2xl);
  width: 100%;
  max-width: 450px;
}

.login-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.login-logo {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-sm);
}

.login-tagline {
  color: var(--color-gray);
  font-size: 0.875rem;
}

/* ========================================
   AUTH PAGES (Login / Register / Admin Login)
======================================== */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-light-2);
  padding: var(--spacing-xl) var(--spacing-lg);
}

.auth-page--admin {
  background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.18) 0, rgba(15, 23, 42, 0.95) 45%, #020617 100%);
}

.auth-container {
  width: 100%;
  max-width: 420px;
}

.auth-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: var(--spacing-xl);
  border: 1px solid rgba(148, 163, 184, 0.25);
}

.auth-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.auth-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-dark);
}

.auth-subtitle {
  font-size: 0.95rem;
  color: var(--color-gray);
}

/* Form groups & inputs */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-dark-2);
}

.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="text"],
.form-group input[type="number"] {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-light-3);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
  background-color: var(--color-white);
}

.form-group input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.25);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1rem;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

.btn-block {
  width: 100%;
}

/* Alerts */
.alert {
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  margin-bottom: var(--spacing-md);
}

.alert-danger {
  background-color: rgba(248, 113, 113, 0.12);
  color: var(--color-danger-dark);
  border: 1px solid rgba(239, 68, 68, 0.5);
}

/* ========================================
   UTILITIES
======================================== */
.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.text-left {
  text-align: left;
}

.text-muted {
  color: var(--color-gray);
}

.text-success {
  color: var(--color-success);
}

.text-danger {
  color: var(--color-danger);
}

.text-warning {
  color: var(--color-warning);
}

.mt-1 {
  margin-top: var(--spacing-sm);
}

.mt-2 {
  margin-top: 2rem;
}

.mt-3 {
  margin-top: var(--spacing-lg);
}

.mt-4 {
  margin-top: var(--spacing-xl);
}

.mb-1 {
  margin-bottom: 1rem;
}

.mb-2 {
  margin-bottom: 2rem;
}

.mb-3 {
  margin-bottom: var(--spacing-lg);
}

.mb-4 {
  margin-bottom: var(--spacing-xl);
}

.p-1 {
  padding: var(--spacing-sm);
}

.p-2 {
  padding: var(--spacing-md);
}

.p-3 {
  padding: var(--spacing-lg);
}

.p-4 {
  padding: var(--spacing-xl);
}

.py-2 {
  padding: 2rem 0;
}

.flex {
  display: flex;
}

.flex-column {
  flex-direction: column;
}

.align-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-1 {
  gap: var(--spacing-sm);
}

.gap-2 {
  gap: var(--spacing-md);
}

.gap-3 {
  gap: var(--spacing-lg);
}

.hidden {
  display: none !important;
}

.divider {
  margin: 2rem 0;
  border: 0;
  border-top: 1px solid var(--color-border-soft);
}

.section-subtitle {
  margin-bottom: 1rem;
  color: var(--color-gray);
}

/* ========================================
   MODAL SYSTEM
======================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 1;
  transition: opacity 0.3s ease;
  padding: 2rem;
}

.modal-backdrop.hidden {
  opacity: 0;
  pointer-events: none;
}

.modal-content {
  position: relative;
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(1);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal--wide .modal-content {
  max-width: 800px;
}

.modal-backdrop.hidden .modal-content {
  transform: scale(0.95);
}

.modal-close-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-light-2);
  border: none;
  border-radius: var(--radius-md);
  color: var(--color-gray);
  font-size: 1.25rem;
  cursor: pointer;
  transition: var(--transition);
  z-index: 10;
}

.modal-close-btn:hover {
  background: var(--color-danger);
  color: var(--color-white);
  transform: rotate(90deg);
}

.modal-spinner {
  font-size: 2rem;
  color: var(--color-primary);
}

/* ========================================
   RESPONSIVE DESIGN
======================================== */

/* Tablet & Below (1024px) */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
    z-index: 9999;
  }

  .sidebar.active {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
    padding: var(--spacing-lg);
  }

  .col-3,
  .col-4 {
    width: 50%;
  }

  .col-8 {
    width: 100%;
  }

  .stat-card {
    flex-direction: column;
    text-align: center;
  }

  .stat-icon {
    width: 56px;
    height: 56px;
    font-size: 1.75rem;
  }

  .navbar-menu {
    gap: var(--spacing-md);
  }
}

/* Mobile (768px) */

@media (max-width: 768px) {

  /* Typography */
  html {
    font-size: 14px;
  }

  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  h3 {
    font-size: 1.25rem;
  }

  h4 {
    font-size: 1.125rem;
  }

  .page-title {
    font-size: 1.5rem;
  }

  /* Grid */
  .row {
    margin: 0;
  }

  .col,
  .col-1,
  .col-2,
  .col-3,
  .col-4,
  .col-6,
  .col-8,
  .col-12 {
    width: 100%;
    padding: 0;
    margin-bottom: var(--spacing-md);
  }

  /* Stats */
  .stat-value {
    font-size: 1.5rem;
  }

  .stat-icon {
    width: 48px;
    height: 48px;
    font-size: 1.5rem;
  }

  /* Cards */
  .card {
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
  }

  .card-header {
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
  }

  /* Content */
  .main-content {
    padding: var(--spacing-md);
  }

  .page-header {
    margin-bottom: var(--spacing-lg);
  }

  /* Tables */
  .table-container {
    font-size: 0.875rem;
  }

  thead th,
  tbody td {
    padding: 0.75rem 0.5rem;
  }

  /* Buttons */
  .btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
  }

  .btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
  }

  /* Forms */
  .form-control {
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
  }

  /* Login */
  .login-container {
    padding: var(--spacing-md);
  }

  .login-card {
    padding: var(--spacing-xl);
  }

  .login-logo {
    font-size: 2rem;
  }

  /* Utilities */
  .container,
  .container-fluid {
    padding: 0 var(--spacing-md);
  }
}

/* Small Mobile (480px) */
@media (max-width: 480px) {
  html {
    font-size: 13px;
  }

  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.25rem;
  }

  .stat-card {
    padding: var(--spacing-md);
  }

  .card {
    padding: var(--spacing-md);
  }

  .main-content {
    padding: var(--spacing-sm) var(--spacing-md);
  }

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

  .btn:not(.btn-block) {
    width: auto;
  }

  thead th,
  tbody td {
    padding: 0.5rem 0.25rem;
    font-size: 0.75rem;
  }

  /* Hide less important columns on very small screens */
  .hide-mobile {
    display: none;
  }
}

/* ========================================
   ANIMATIONS
======================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.5s ease-in-out;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in {
  animation: slideIn 0.5s ease-in-out;
}

/* ========================================
   LOADING SPINNER
======================================== */
.spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--color-white);
  animation: spin 0.8s linear infinite;
}

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

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.loading-spinner {
  width: 60px;
  height: 60px;
  border: 5px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--color-white);
  animation: spin 1s linear infinite;
}

/* PAYMENT PAGE: Trust & Modal Styles */
/* Sidebar refinements for payment/dashboard */
.sidebar {
  background: #0b1020;
  border-right: 1px solid rgba(255, 255, 255, 0.04);
}

.sidebar-logo {
  font-weight: 700;
  letter-spacing: 0.03em;
}

.sidebar-nav-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-md);
  color: var(--color-muted-text, #a0aec0);
  font-size: 0.9rem;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.sidebar-nav-link:hover {
  background: rgba(255, 255, 255, 0.04);
  color: #ffffff;
  transform: translateX(1px);
}

.sidebar-nav-link.active {
  background: var(--gradient-primary);
  color: #ffffff;
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.45);
}

.sidebar-nav-icon {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.9);
  font-size: 0.9rem;
}

.sidebar-nav-link.active .sidebar-nav-icon {
  background: rgba(15, 23, 42, 0.85);
}

/* Trust / security card */
.card-trust-header {
  padding: 0.65rem 0.85rem;
  background: var(--gradient-primary);
  color: #ffffff;
}

.card-trust-title {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-trust-header .card-trust-title {
  color: var(--color-white);
}

.card-trust-list {
  margin-bottom: 1rem;
}

.card-trust-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.card-trust-icon {
  color: var(--color-success);
  font-size: 1.2rem;
}

.card-trust-text-title {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
}

.card-trust-text-subtitle {
  font-size: 0.75rem;
  color: var(--color-gray);
}

/* Supported card brands block */
.supported-cards {
  padding: 0.85rem 1rem;
  background: var(--color-light);
  border-radius: var(--radius-md);
  text-align: center;
}

.supported-cards-label {
  margin: 0 0 0.75rem 0;
  font-size: 0.75rem;
  color: var(--color-gray);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.supported-cards-row {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.card-brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  background: var(--color-light-2);
  overflow: hidden;
}

.card-brand img {
  display: block;
  height: 18px;
  width: auto;
}

.card-brand--amex {
  background: #006fcf;
  border-color: #006fcf;
}

.card-brand__visa {
  font-weight: 800;
  font-size: 1.05rem;
  color: #1a1f71;
  letter-spacing: -1px;
}

.card-brand__jcb {
  font-weight: 800;
  font-size: 0.85rem;
  color: #0e4c96;
}

.card-brand__amex {
  background: #e5e7eb; /* light gray */
  color: #4b5563;      /* gray-700 text */
  font-weight: 600;
  letter-spacing: 0.03em;
  border: 1px solid #d1d5db;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.card-brand__amex img {
  height: 26px;
  width: auto;
}

.card-brand--mc {
  position: relative;
  overflow: visible;
}

.card-brand--mc img {
  height: 22px;
}

.card-brand--mc-circle {
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 999px;
}

.card-brand--mc-circle.red {
  background: #eb001b;
  left: 14px;
}

.card-brand--mc-circle.orange {
  background: #ff5f00;
  left: 20px;
}

/* Modal: payment add card */
.payment-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.78);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 900;
  backdrop-filter: blur(4px);
  padding: 1rem;
}

.payment-modal {
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  margin: 0;
  box-shadow: 0 25px 50px rgba(15, 23, 42, 0.75);
  display: flex;
  flex-direction: column;
}

.payment-modal-header {
  background-image: var(--gradient-primary);
  color: #ffffff;
  padding: 1rem;
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: none;
  flex-shrink: 0;
}

.payment-modal-header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.payment-modal-header-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.payment-modal-title {
  margin: 0;
  color: #ffffff;
  font-size: clamp(0.95rem, 3vw, 1.125rem);
  margin-bottom: var(--spacing-xs);
}

.payment-modal-subtitle {
  margin: 0.25rem 0 0 0;
  font-size: clamp(0.7rem, 2.5vw, 0.8rem);
  color: rgba(255, 255, 255, 0.92);
}

.payment-modal-close {
  background: transparent;
  border: none;
  color: #ffffff;
  cursor: pointer;
  padding: var(--spacing-xs);
  display: flex;
  align-items: center;
  justify-content: center;
}

.payment-modal-close i {
  font-size: 1rem;
}

.payment-modal-body {
  padding: clamp(1rem, 3vw, 1.5rem);
  overflow-y: auto;
  flex: 1;
}

.payment-modal-accepted {
  margin-bottom: 1rem;
  padding: 0.75rem;
  background: var(--color-light);
  border-radius: var(--radius-md);
  text-align: center;
}

.payment-modal-accepted-label {
  font-size: 0.65rem;
  color: var(--color-gray);
  margin: 0 0 0.5rem 0;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.payment-modal-accepted-row {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.payment-modal-default-checkbox {
  margin-top: 1rem;
  padding: 0.875rem;
  background: rgba(16, 185, 129, 0.06);
  border-radius: var(--radius-md);
  border: 1px solid rgba(16, 185, 129, 0.7);
}

.payment-modal-default-checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  cursor: pointer;
  margin: 0;
  font-size: 0.875rem;
}

.payment-modal-actions {
  display: flex;
  gap: 0.875rem;
  margin-top: 1.25rem;
}

.payment-modal-actions .btn-primary {
  flex: 1;
  padding: 0.75rem;
  font-size: 0.9375rem;
  font-weight: 600;
}

.payment-modal-actions .btn-outline {
  padding: 0.75rem;
}

/* Support card tweaks */
.support-card {
  text-align: center;
}

.support-card-icon {
  font-size: 2.5rem;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.support-card-title {
  display: block;
  margin-bottom: 0.5rem;
}

.support-card-text {
  font-size: 0.875rem;
  color: var(--color-gray);
  margin-bottom: 1rem;
}

/* Card number field brand icon tweaks */
.card-form-number-wrapper {
  position: relative;
  display: inline-flex;
  align-items: center;
  width: 100%;
}

.card-form-number-input {
  flex: 1 1 auto;
  padding-right: 3rem; /* space for brand icon */
}

.card-form-brand-icon {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray);
}

.card-form-brand-icon i {
  font-size: 1.1rem;
}

.card-form-brand-icon .card-brand {
  margin: 0;
}

/* Payment modal form error spacing utility (replaces inline style) */
#cardError {
  margin-top: 0.875rem;
}

/* Saved payment methods list */
.saved-card-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem 1.5rem;
  margin-bottom: 0.75rem;
  border-radius: var(--radius-lg);
  background: var(--color-white);
  border: 1px solid var(--color-light-3);
  box-shadow: var(--shadow-sm);
}

.saved-card-main {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex: 1;
}

.saved-card-icon {
  font-size: 2rem;
}

.saved-card-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.saved-card-title-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.saved-card-label {
  font-weight: 600;
  color: var(--color-dark);
}

.saved-card-meta {
  font-size: 0.85rem;
  color: var(--color-gray);
}

.saved-card-meta i {
  margin-right: 0.25rem;
}

.saved-card-badge {
  font-size: 0.75rem;
}

.saved-card-actions {
  display: flex;
  flex-direction: row;
  gap: 0.5rem;
}

.saved-card-btn {
  background: var(--color-light-2);
  color: var(--color-primary);
  border: 1px solid var(--color-primary-light);
}

.saved-card-btn:hover {
  background: var(--color-primary-light);
  color: var(--color-white);
}

.saved-card-btn--danger {
  color: var(--color-danger);
  border-color: var(--color-danger);
}

.saved-card-btn--danger:hover {
  background: var(--color-danger);
  color: var(--color-white);
}

@media (max-width: 768px) {
  .saved-card-item {
    flex-direction: column;
    align-items: flex-start;
  }

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

/* Saved payment methods list */
.saved-card-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem 1.5rem;
  margin-bottom: 0.75rem;
  border-radius: var(--radius-lg);
  background: var(--color-white);
  border: 1px solid var(--color-light-3);
  box-shadow: var(--shadow-sm);
}

.saved-card-main {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex: 1;
}

.saved-card-icon {
  font-size: 2rem;
}

.saved-card-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.saved-card-title-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.saved-card-label {
  font-weight: 600;
  color: var(--color-dark);
}

.saved-card-meta {
  font-size: 0.85rem;
  color: var(--color-gray);
}

.saved-card-meta i {
  margin-right: 0.25rem;
}

.saved-card-badge {
  font-size: 0.75rem;
}

.saved-card-actions {
  display: flex;
  flex-direction: row;
  gap: 0.5rem;
}

.saved-card-btn {
  background: var(--color-light-2);
  color: var(--color-primary);
  border: 1px solid var(--color-primary-light);
}

.saved-card-btn:hover {
  background: var(--color-primary-light);
  color: var(--color-white);
}

.saved-card-btn--danger {
  color: var(--color-danger);
  border-color: var(--color-danger);
}

.saved-card-btn--danger:hover {
  background: var(--color-danger);
  color: var(--color-white);
}

@media (max-width: 768px) {
  .saved-card-item {
    flex-direction: column;
    align-items: flex-start;
  }

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

/* Emoji alignment helper for headings */
.emoji {
  margin-right: 0.25rem;
}