/* ========================================
   TAPNGO APP PAGES - CONSISTENT DESIGN SYSTEM
   Professional Internal Pages Styling
   ======================================== */

/* ========================================
   APP LAYOUT VARIABLES
   ======================================== */
:root {
  /* Extend landing page variables */
  --app-max-width: 1200px;
  --app-content-width: 900px;
  --app-narrow-width: 600px;

  /* Page backgrounds */
  --page-bg: #f8fafc;
  --content-bg: #ffffff;

  /* Consistent shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px 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);
}

/* ========================================
   APP NAVIGATION
   ======================================== */
.app-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: white;
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 1.5rem;
}

.app-nav-container {
  max-width: var(--app-max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.app-nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-dark);
}

.app-nav-logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 1rem;
}

.app-nav-logo span {
  color: var(--primary-green);
}

.app-nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.app-nav-link {
  padding: 0.5rem 1rem;
  text-decoration: none;
  color: var(--neutral-grey);
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: 8px;
  transition: all 0.2s;
}

.app-nav-link:hover {
  color: var(--primary-green);
  background: var(--bg-light);
}

.app-nav-link.active {
  color: var(--primary-green);
  background: var(--secondary-green);
}

.app-nav-cta {
  padding: 0.5rem 1rem;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: white;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 8px;
  transition: all 0.2s;
}

.app-nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Mobile nav */
.app-nav-mobile {
  display: none;
}

@media (max-width: 768px) {
  .app-nav-links {
    display: none;
  }

  .app-nav-mobile {
    display: flex;
    gap: 0.5rem;
  }

  .app-nav-menu-btn {
    padding: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-dark);
    font-size: 1.25rem;
  }
}

/* ========================================
   PAGE HEADER
   ======================================== */
.page-header {
  background: linear-gradient(135deg, #059669 0%, #10b981 50%, #34d399 100%);
  padding: 3rem 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.page-header-content {
  position: relative;
  z-index: 1;
  max-width: var(--app-content-width);
  margin: 0 auto;
}

.page-header-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  color: white;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.page-header-title {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 800;
  color: white;
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

.page-header-subtitle {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.9);
  max-width: 500px;
  margin: 0 auto;
}

/* Compact header variant */
.page-header-compact {
  padding: 2rem 1.5rem;
}

.page-header-compact .page-header-title {
  font-size: clamp(1.5rem, 4vw, 2rem);
  margin-bottom: 0.5rem;
}

/* ========================================
   PAGE CONTAINER
   ======================================== */
.page-container {
  min-height: calc(100vh - 200px);
  background: var(--page-bg);
  padding: 2rem 1rem;
}

.page-content {
  max-width: var(--app-content-width);
  margin: 0 auto;
}

.page-content-wide {
  max-width: var(--app-max-width);
}

.page-content-narrow {
  max-width: var(--app-narrow-width);
}

/* ========================================
   MODERN CARDS
   ======================================== */
.app-card {
  background: white;
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all 0.3s ease;
}

.app-card:hover {
  box-shadow: var(--shadow-md);
}

.app-card-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-light);
}

.app-card-header-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-dark);
  margin: 0;
}

.app-card-header-icon {
  width: 36px;
  height: 36px;
  background: var(--secondary-green);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
}

.app-card-body {
  padding: 1.5rem;
}

.app-card-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-light);
}

/* Card variants */
.app-card-elevated {
  box-shadow: var(--shadow-lg);
}

.app-card-bordered {
  border: 2px solid var(--border-color);
  box-shadow: none;
}

.app-card-accent {
  border-top: 4px solid var(--primary-green);
}

/* ========================================
   MODERN FORM STYLES
   ======================================== */
.app-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.app-form-section {
  padding: 1.5rem;
  background: var(--bg-light);
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.app-form-section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--primary-green);
}

.app-form-section-icon {
  font-size: 1.25rem;
}

.app-form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.app-form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.app-form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-dark);
}

.app-form-label-required::after {
  content: ' *';
  color: var(--danger-red);
}

.app-form-input,
.app-form-select,
.app-form-textarea {
  padding: 0.75rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: 10px;
  font-size: 1rem;
  background: white;
  transition: all 0.2s;
  outline: none;
}

.app-form-input:hover,
.app-form-select:hover,
.app-form-textarea:hover {
  border-color: var(--neutral-grey);
}

.app-form-input:focus,
.app-form-select:focus,
.app-form-textarea:focus {
  border-color: var(--primary-green);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

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

.app-form-hint {
  font-size: 0.8rem;
  color: var(--neutral-grey);
}

.app-form-file {
  padding: 0.75rem 1rem;
  border: 2px dashed var(--border-color);
  border-radius: 10px;
  background: var(--bg-light);
  cursor: pointer;
  transition: all 0.2s;
}

.app-form-file:hover {
  border-color: var(--primary-green);
  background: white;
}

/* ========================================
   MODERN BUTTONS
   ======================================== */
.app-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  outline: none;
}

.app-btn:focus {
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.3);
}

.app-btn-primary {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: white;
}

.app-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

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

.app-btn-secondary:hover {
  background: var(--primary-green);
  color: white;
}

.app-btn-ghost {
  background: transparent;
  color: var(--neutral-grey);
}

.app-btn-ghost:hover {
  background: var(--bg-light);
  color: var(--text-dark);
}

.app-btn-danger {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  color: white;
}

.app-btn-danger:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
}

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

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

.app-btn-full {
  width: 100%;
}

.app-btn-icon {
  padding: 0.75rem;
}

/* ========================================
   MODERN TABS
   ======================================== */
.app-tabs {
  background: white;
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.app-tabs-nav {
  display: flex;
  background: var(--bg-light);
  border-bottom: 1px solid var(--border-color);
  overflow-x: auto;
}

.app-tab-btn {
  flex: 1;
  min-width: 150px;
  padding: 1rem 1.5rem;
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--neutral-grey);
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.app-tab-btn:hover {
  color: var(--text-dark);
  background: white;
}

.app-tab-btn.active {
  color: var(--primary-green);
  background: white;
  border-bottom-color: var(--primary-green);
}

.app-tab-badge {
  background: var(--primary-green);
  color: white;
  padding: 0.15rem 0.5rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
}

.app-tab-content {
  display: none;
  padding: 1.5rem;
}

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

/* ========================================
   MODERN TABLE
   ======================================== */
.app-table-container {
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.app-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.app-table th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--text-dark);
  background: var(--bg-light);
  border-bottom: 2px solid var(--border-color);
  white-space: nowrap;
}

.app-table td {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--neutral-grey);
}

.app-table tbody tr {
  transition: background 0.2s;
}

.app-table tbody tr:hover {
  background: var(--bg-light);
}

.app-table tbody tr:last-child td {
  border-bottom: none;
}

/* ========================================
   STATUS BADGES
   ======================================== */
.app-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.35rem 0.75rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: capitalize;
}

.app-badge-success {
  background: var(--secondary-green);
  color: #065f46;
}

.app-badge-warning {
  background: #fef3c7;
  color: #92400e;
}

.app-badge-danger {
  background: #fee2e2;
  color: #991b1b;
}

.app-badge-info {
  background: #e0e7ff;
  color: #3730a3;
}

.app-badge-neutral {
  background: var(--bg-light);
  color: var(--neutral-grey);
}

/* ========================================
   STATS CARDS
   ======================================== */
.app-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.app-stat-card {
  background: white;
  border-radius: 16px;
  padding: 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s;
  border: 1px solid var(--border-color);
}

.app-stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--secondary-green);
}

.app-stat-icon {
  width: 50px;
  height: 50px;
  background: var(--secondary-green);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 1rem;
}

.app-stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary-green);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.app-stat-label {
  font-size: 0.875rem;
  color: var(--neutral-grey);
  font-weight: 500;
}

/* ========================================
   CAMPAIGN CARDS (GRID)
   ======================================== */
.app-campaigns-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.app-campaign-card {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: all 0.3s;
}

.app-campaign-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--secondary-green);
}

.app-campaign-header {
  padding: 1.25rem;
  background: var(--bg-light);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.app-campaign-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin: 0;
  line-height: 1.3;
}

.app-campaign-body {
  padding: 1.25rem;
}

.app-campaign-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--neutral-grey);
}

.app-campaign-meta-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.app-campaign-meta-icon {
  flex-shrink: 0;
  width: 20px;
}

.app-campaign-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-light);
  display: flex;
  gap: 0.75rem;
}

/* ========================================
   PROGRESS BAR
   ======================================== */
.app-progress {
  margin: 1rem 0;
}

.app-progress-bar {
  height: 10px;
  background: var(--border-color);
  border-radius: 50px;
  overflow: hidden;
}

.app-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #10b981 0%, #34d399 100%);
  border-radius: 50px;
  transition: width 0.6s ease;
  position: relative;
}

.app-progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.app-progress-stats {
  display: flex;
  justify-content: space-between;
  margin-top: 0.5rem;
  font-size: 0.85rem;
}

.app-progress-raised {
  font-weight: 600;
  color: var(--text-dark);
}

.app-progress-goal {
  color: var(--neutral-grey);
}

/* ========================================
   MODALS
   ======================================== */
.app-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}

.app-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.app-modal {
  background: white;
  border-radius: 20px;
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  transform: translateY(20px);
  transition: transform 0.3s;
}

.app-modal-overlay.active .app-modal {
  transform: translateY(0);
}

.app-modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.app-modal-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-dark);
  margin: 0;
}

.app-modal-close {
  width: 36px;
  height: 36px;
  background: var(--bg-light);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.25rem;
  color: var(--neutral-grey);
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.app-modal-close:hover {
  background: var(--danger-red);
  color: white;
}

.app-modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  max-height: calc(90vh - 140px);
}

.app-modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  background: var(--bg-light);
}

/* ========================================
   LOADING STATES
   ======================================== */
.app-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  gap: 1rem;
}

.app-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border-color);
  border-top-color: var(--primary-green);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.app-loading-text {
  color: var(--neutral-grey);
  font-size: 0.95rem;
}

/* ========================================
   EMPTY STATES
   ======================================== */
.app-empty {
  text-align: center;
  padding: 3rem 1.5rem;
}

.app-empty-icon {
  width: 80px;
  height: 80px;
  background: var(--bg-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 1.5rem;
}

.app-empty-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

.app-empty-text {
  color: var(--neutral-grey);
  margin-bottom: 1.5rem;
}

/* ========================================
   ALERT / MESSAGE BOXES
   ======================================== */
.app-alert {
  padding: 1rem 1.25rem;
  border-radius: 12px;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.app-alert-icon {
  flex-shrink: 0;
  font-size: 1.25rem;
}

.app-alert-content {
  flex: 1;
}

.app-alert-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.app-alert-text {
  font-size: 0.9rem;
  margin: 0;
}

.app-alert-success {
  background: var(--secondary-green);
  color: #065f46;
}

.app-alert-warning {
  background: #fef3c7;
  color: #92400e;
}

.app-alert-danger {
  background: #fee2e2;
  color: #991b1b;
}

.app-alert-info {
  background: #e0e7ff;
  color: #3730a3;
}

/* ========================================
   DONATION HERO (CAMPAIGN PAGE)
   ======================================== */
.app-donation-hero {
  background: white;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  max-width: 480px;
  margin: 0 auto;
  text-align: center;
}

.app-donation-hero-header {
  background: linear-gradient(135deg, #059669 0%, #10b981 100%);
  padding: 1.5rem;
  color: white;
}

.app-donation-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(251, 191, 36, 0.9);
  color: #1f2937;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.app-donation-hero-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.app-donation-hero-org {
  font-size: 0.9rem;
  opacity: 0.9;
}

.app-donation-hero-body {
  padding: 1.5rem;
}

.app-donation-amount {
  background: var(--secondary-green);
  padding: 1rem 1.5rem;
  border-radius: 12px;
  display: inline-block;
  margin-bottom: 1.5rem;
}

.app-donation-amount-value {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary-green-dark);
}

.app-donation-hero-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border-color);
  background: var(--bg-light);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* ========================================
   QR CODE SECTION
   ======================================== */
.app-qr-container {
  background: white;
  border: 2px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  text-align: center;
}

.app-qr-code {
  margin: 1rem auto;
  padding: 1rem;
  background: white;
  border-radius: 12px;
  display: inline-block;
}

.app-qr-instructions {
  background: var(--bg-light);
  border-radius: 12px;
  padding: 1rem;
  margin-top: 1rem;
  text-align: left;
}

.app-qr-instructions ol {
  margin: 0.5rem 0 0 1.25rem;
  padding: 0;
  font-size: 0.9rem;
  color: var(--neutral-grey);
}

.app-qr-instructions li {
  margin-bottom: 0.5rem;
}

/* ========================================
   AMOUNT SELECTION
   ======================================== */
.app-amount-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin: 1rem 0;
}

.app-amount-btn {
  padding: 0.75rem;
  border: 2px solid var(--border-color);
  background: white;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
  cursor: pointer;
  transition: all 0.2s;
}

.app-amount-btn:hover {
  border-color: var(--primary-green);
  background: var(--bg-light);
}

.app-amount-btn.active {
  border-color: var(--primary-green);
  background: var(--secondary-green);
  color: var(--primary-green-dark);
}

/* ========================================
   FOOTER (APP PAGES)
   ======================================== */
.app-footer {
  background: #0f172a;
  color: white;
  padding: 2rem 1.5rem;
  text-align: center;
}

.app-footer-content {
  max-width: var(--app-max-width);
  margin: 0 auto;
}

.app-footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.app-footer-link {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.app-footer-link:hover {
  color: var(--primary-green);
}

.app-footer-copyright {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
  margin: 0;
}

/* ========================================
   RESPONSIVE ADJUSTMENTS
   ======================================== */
@media (max-width: 768px) {
  .page-header {
    padding: 2rem 1rem;
  }

  .page-container {
    padding: 1.5rem 1rem;
  }

  .app-card-body {
    padding: 1.25rem;
  }

  .app-form-section {
    padding: 1.25rem;
  }

  .app-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .app-campaigns-grid {
    grid-template-columns: 1fr;
  }

  .app-amount-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .app-table th,
  .app-table td {
    padding: 0.75rem;
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .app-stats-grid {
    grid-template-columns: 1fr;
  }

  .app-stat-card {
    padding: 1rem;
  }

  .app-stat-value {
    font-size: 1.5rem;
  }

  .app-tabs-nav {
    flex-direction: column;
  }

  .app-tab-btn {
    min-width: auto;
    padding: 0.75rem 1rem;
  }

  .app-modal {
    border-radius: 16px 16px 0 0;
    max-height: 95vh;
  }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-5 { margin-top: 1.5rem; }
.mt-6 { margin-top: 2rem; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-5 { margin-bottom: 1.5rem; }
.mb-6 { margin-bottom: 2rem; }

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

.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-primary { color: var(--primary-green); }
.text-muted { color: var(--neutral-grey); }
.text-dark { color: var(--text-dark); }
.text-danger { color: var(--danger-red); }
.text-success { color: #065f46; }

.hidden { display: none !important; }
.block { display: block; }
.flex { display: flex; }
.grid { display: grid; }