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

:root {
  --primary: #1E3A8A;
  --secondary: #4338CA;
  --accent: #059669;
  --bg-gradient-start: #F8FAFC;
  --bg-gradient-end: #EEF2FF;
  --sidebar-start: #0F172A;
  --sidebar-end: #1E293B;
  --text-primary: #0F172A;
  --text-secondary: #64748B;
  --error: #DC2626;
  --success: #16A34A;
  --border-light: #E2E8F0;
  --white: #FFFFFF;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
}

html, body {
  height: 100%;
  width: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Layout Container */
.layout-container {
  width: 100%;
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  display: none;
  width: 22%;
  background: linear-gradient(180deg, var(--sidebar-start) 0%, var(--sidebar-end) 100%);
  padding: var(--spacing-xl);
  flex-direction: column;
  position: fixed;
  height: 100vh;
  left: 0;
  top: 0;
  z-index: 100;
  overflow-y: auto;
}

.sidebar-logo {
  display: none;
  width: 100%;
  height: 80px;
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-2xl);
  object-fit: contain;
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: linear-gradient(180deg, var(--sidebar-start) 0%, var(--sidebar-end) 100%);
  padding: var(--spacing-md) var(--spacing-lg);
  z-index: 100;
  justify-content: space-between;
  align-items: center;
}

.mobile-nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex: 1;
}

.mobile-nav-logo {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  object-fit: contain;
}

.mobile-nav-title {
  color: var(--white);
  font-size: 16px;
  font-weight: 600;
}

.mobile-menu-btn {
  background: none;
  border: none;
  color: var(--white);
  font-size: 24px;
  cursor: pointer;
  padding: var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-drawer {
  display: none;
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.5);
  z-index: 99;
}

.mobile-drawer.active {
  display: block;
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 60px;
  left: 0;
  width: 100%;
  background: var(--white);
  flex-direction: column;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg);
  z-index: 101;
  max-height: calc(100vh - 60px);
  overflow-y: auto;
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu .nav-item {
  padding: var(--spacing-md) var(--spacing-lg);
  background: transparent;
  color: var(--text-primary);
}

.mobile-menu .nav-item:hover {
  background: var(--bg-gradient-start);
  color: var(--primary);
}

.mobile-menu .nav-item.active {
  background: transparent;
  color: var(--primary);
  font-weight: 600;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  flex: 1;
}

.nav-item {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-size: 14px;
  transition: all 0.3s ease;
  cursor: pointer;
}

.nav-item:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
}

.nav-item.active {
  color: var(--white);
  background: rgba(var(--secondary), 0.2);
}

/* Main Content */
.main-content {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-xl);
  overflow-y: auto;
  padding-top: var(--spacing-xl);
}

.mobile-nav ~ .main-content {
  padding-top: 80px;
}

.content-wrapper {
  width: 100%;
  max-width: 480px;
  display: flex;
  flex-direction: column;
}

.logo-placeholder {
  width: 100%;
  height: 80px;
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-2xl);
  object-fit: contain;
}

/* Typography */
h1 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

h2 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

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

/* Cards */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07), 0 1px 3px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
}

.card:hover {
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
}

.card-highlight {
  background: linear-gradient(135deg, #F0F9FF 0%, #F5F3FF 100%);
  border: 1px solid var(--border-light);
}

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

.form-group-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
  position: relative;
}

.label-required::after {
  content: " *";
  color: var(--error);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
input[type="password"],
textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-family: inherit;
  transition: all 0.2s ease;
  color: var(--text-primary);
}

input[type="text"]::placeholder,
input[type="email"]::placeholder,
input[type="tel"]::placeholder,
input[type="number"]::placeholder,
input[type="password"]::placeholder,
textarea::placeholder {
  color: var(--text-secondary);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="number"]:focus,
input[type="password"]:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

input:disabled {
  background: #F1F5F9;
  color: var(--text-secondary);
  cursor: not-allowed;
}

/* Floating Label Input */
.floating-input-wrapper {
  position: relative;
  margin-bottom: var(--spacing-lg);
}

.floating-input {
  width: 100%;
  padding: var(--spacing-md);
  padding-top: 20px;
  padding-bottom: 8px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  font-size: 14px;
  transition: all 0.2s ease;
  background: var(--white);
  color: var(--text-primary);
}

.floating-input::placeholder {
  color: transparent;
}

.floating-label {
  position: absolute;
  left: var(--spacing-md);
  top: var(--spacing-md);
  font-size: 13px;
  color: var(--text-secondary);
  transition: all 0.2s ease;
  pointer-events: none;
}

.floating-input:focus ~ .floating-label,
.floating-input:not(:placeholder-shown) ~ .floating-label {
  top: 8px;
  font-size: 11px;
  color: var(--primary);
  font-weight: 500;
}

.floating-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

/* Checkboxes */
.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.checkbox-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  cursor: pointer;
}

.checkbox-item input[type="checkbox"] {
  width: 20px;
  height: 20px;
  min-width: 20px;
  margin-top: 2px;
  cursor: pointer;
  accent-color: var(--primary);
  border-radius: var(--radius-sm);
}

.checkbox-item label {
  margin-bottom: 0;
  font-size: 13px;
  line-height: 1.5;
  cursor: pointer;
}

/* OTP Input */
.otp-container {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin: var(--spacing-xl) 0;
}

.otp-input {
  width: 50px;
  height: 50px;
  border: 2px solid var(--border-light);
  border-radius: var(--radius-md);
  font-size: 24px;
  font-weight: 600;
  text-align: center;
  transition: all 0.2s ease;
}

.otp-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

.otp-input.filled {
  border-color: var(--primary);
  color: var(--text-primary);
}

/* Buttons */
.btn {
  padding: var(--spacing-md) var(--spacing-lg);
  border: none;
  border-radius: var(--radius-lg);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  font-family: inherit;
  width: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: var(--white);
  box-shadow: 0 4px 12px rgba(30, 58, 138, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(30, 58, 138, 0.3);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(30, 58, 138, 0.2);
}

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

.btn-secondary:hover {
  background: #F8FAFC;
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--border-light);
}

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

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

.btn-success:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

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

.btn-small {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 12px;
  width: auto;
}

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

.btn-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.btn-group-horizontal {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

/* Alerts */
.alert {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  font-size: 13px;
  line-height: 1.5;
}

.alert-success {
  background: #DCFCE7;
  color: #166534;
  border: 1px solid #BBF7D0;
}

.alert-error {
  background: #FEE2E2;
  color: #991B1B;
  border: 1px solid #FECACA;
}

.alert-info {
  background: #DBEAFE;
  color: #1E40AF;
  border: 1px solid #BFDBFE;
}

/* Summary Cards */
.summary-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--spacing-md);
}

.summary-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  border-right: 1px solid var(--border-light);
  padding-right: var(--spacing-md);
}

.summary-item:last-child {
  border-right: none;
  padding-right: 0;
}

.summary-label {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.summary-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
}

/* Transaction List */
.transaction-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.transaction-item {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all 0.2s ease;
}

.transaction-item:hover {
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.transaction-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  flex: 1;
}

.transaction-date {
  font-size: 13px;
  color: var(--text-secondary);
}

.transaction-description {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.transaction-amount {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--spacing-xs);
}

.amount {
  font-size: 16px;
  font-weight: 600;
  color: var(--accent);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-success {
  background: #DCFCE7;
  color: #166534;
}

.badge-error {
  background: #FEE2E2;
  color: #991B1B;
}

.badge-pending {
  background: #FEF3C7;
  color: #92400E;
}

/* List Items */
.list-item {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  border: 1px solid var(--border-light);
}

.list-item-content {
  flex: 1;
}

.list-item-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: #F1F5F9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.list-item-amount {
  font-size: 16px;
  font-weight: 600;
  color: var(--accent);
}

/* Progress Text */
.progress-text {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

/* Balance Display */
.balance-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  color: var(--white);
  margin-bottom: var(--spacing-lg);
  box-shadow: 0 8px 16px rgba(30, 58, 138, 0.2);
}

.balance-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-sm);
}

.balance-amount {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.balance-info {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.7);
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.5);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  max-width: 480px;
  width: 100%;
  box-shadow: 0 20px 25px rgba(0, 0, 0, 0.15);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
}

.modal-title {
  font-size: 20px;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.modal-close:hover {
  color: var(--text-primary);
}

/* Loading State */
.loading-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(30, 58, 138, 0.2);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Loader styles */
.loader {
  display: flex;
  justify-content: center;
  align-items: center;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.9);
  z-index: 9999;
}

/* Spinner styles */
.spinner {
  border: 8px solid #f3f3f3;
  border-top: 8px solid #3498db;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (min-width: 1024px) {
  .sidebar {
    display: flex !important;
  }

  .auth-layout .sidebar {
    display: none !important;
  }

  .sidebar-logo {
    display: block !important;
  }

  .mobile-nav {
    display: none !important;
  }

  .mobile-menu {
    display: none !important;
  }

  .mobile-drawer {
    display: none !important;
  }

  .main-content {
    margin-left: 22%;
    width: calc(100% - 22%);
    padding: var(--spacing-2xl) var(--spacing-xl);
    padding-top: var(--spacing-2xl);
  }

  .auth-layout .main-content {
    margin-left: 0;
    width: 100%;
  }

  .layout-container {
    align-items: stretch;
  }

  .logo-placeholder {
    display: block;
  }
}

@media (max-width: 1023px) {
  .sidebar {
    display: none !important;
  }

  .mobile-nav {
    display: flex !important;
  }

  .main-content {
    margin-left: 0;
    width: 100%;
    padding-top: 80px;
  }
}

@media (max-width: 640px) {
  :root {
    --spacing-lg: 16px;
    --spacing-xl: 20px;
  }

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

  h1 {
    font-size: 24px;
  }

  h2 {
    font-size: 20px;
  }

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

  .summary-item {
    border-right: none;
    padding-right: 0;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: var(--spacing-md);
  }

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

  .btn-group-horizontal {
    grid-template-columns: 1fr;
  }

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