:root {
  --primary: #A855F7;
  --primary-hover: #9333EA;
  --primary-light: rgba(168, 85, 247, 0.1);
  --primary-gradient: linear-gradient(135deg, #A855F7 0%, #7C3AED 100%);
  
  --bg-color: #F8FAFC;
  --text-main: #0F172A;
  --text-muted: #64748B;
  --border-color: #E2E8F0;
  --card-bg: #FFFFFF;
  
  --status-pending: #F59E0B; /* Amber */
  --status-accepted: #3B82F6; /* Blue */
  --status-payment: #F97316; /* Orange */
  --status-completed: #10B981; /* Green */
  --status-rejected: #EF4444; /* Red */
  --status-expired: #94A3B8; /* Gray */
  
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
}

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

html, body {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

/* App Header */
.app-header {
  background-color: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 0.875rem 1rem;
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
}

.header-container {
  max-width: 480px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.brand-highlight {
  color: var(--primary);
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-icon {
  color: var(--primary);
  flex-shrink: 0;
}

/* Main Layout */
.app-main {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding: 1.25rem 1rem;
  min-height: calc(100vh - 65px);
  display: flex;
  flex-direction: column;
}

/* Typography */
h1 {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
  color: var(--text-main);
  line-height: 1.3;
}

h2 {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.35rem;
}

p {
  color: var(--text-muted);
  font-size: 0.925rem;
  margin-bottom: 1.25rem;
}

/* Cards */
.card {
  background-color: var(--card-bg);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  padding: 1.5rem 1.25rem;
  margin-bottom: 1rem;
  width: 100%;
}

.card-centered {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Forms */
.form-group {
  margin-bottom: 1.25rem;
  width: 100%;
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.4rem;
  font-size: 0.875rem;
  color: var(--text-main);
}

.form-control {
  width: 100%;
  min-height: 48px;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 1rem; /* 16px prevents mobile browser auto-zoom */
  font-family: inherit;
  color: var(--text-main);
  background-color: #FFFFFF;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  -webkit-appearance: none;
  appearance: none;
}

select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748B'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.875rem center;
  background-size: 1.25rem;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.2);
}

.text-danger {
  color: var(--status-rejected);
  font-size: 0.8rem;
  font-weight: 500;
  margin-top: 0.35rem;
  display: block;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.875rem 1.5rem;
  font-size: 1rem;
  font-weight: 700;
  font-family: inherit;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  width: 100%;
  transition: transform 0.1s ease, background-color 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
  text-align: center;
  user-select: none;
}

.btn:active:not(:disabled) {
  transform: scale(0.98);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary-gradient);
  color: #FFFFFF;
  box-shadow: 0 4px 10px rgba(168, 85, 247, 0.3);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #9333EA 0%, #6D28D9 100%);
  box-shadow: 0 6px 14px rgba(168, 85, 247, 0.4);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-main);
  border: 1.5px solid var(--border-color);
}

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

/* Status Badges */
.status-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1.25rem;
  border-radius: 9999px;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  margin: 1rem 0;
  text-transform: uppercase;
  text-align: center;
}

/* Status variants matching all backend/web states */
.status-PendingReview, .status-PENDING_APPROVAL, .status-PENDING, .status-UNDER_REVIEW, .status-pending_approval, .status-under_review {
  background-color: rgba(245, 158, 11, 0.12);
  color: var(--status-pending);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.status-Accepted, .status-ACCEPTED, .status-accepted {
  background-color: rgba(59, 130, 246, 0.12);
  color: var(--status-accepted);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.status-PaymentPending, .status-PAYMENT_PENDING, .status-PAYMENT_IN_PROGRESS, .status-payment_in_progress, .status-payment_pending {
  background-color: rgba(249, 115, 22, 0.12);
  color: var(--status-payment);
  border: 1px solid rgba(249, 115, 22, 0.3);
}

.status-Completed, .status-COMPLETED, .status-completed {
  background-color: rgba(16, 185, 129, 0.12);
  color: var(--status-completed);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-Rejected, .status-REJECTED, .status-rejected {
  background-color: rgba(239, 68, 68, 0.12);
  color: var(--status-rejected);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.status-Expired, .status-EXPIRED, .status-expired {
  background-color: rgba(148, 163, 184, 0.12);
  color: var(--status-expired);
  border: 1px solid rgba(148, 163, 184, 0.3);
}

/* Icons */
.icon-xl {
  width: 56px;
  height: 56px;
  margin-bottom: 0.875rem;
  flex-shrink: 0;
}

.icon-success { color: var(--status-completed); }
.icon-error { color: var(--status-rejected); }
.icon-warning { color: var(--status-pending); }

/* Details list */
.details-list {
  width: 100%;
  text-align: left;
  border-top: 1px solid var(--border-color);
  padding-top: 0.875rem;
  margin-top: 0.875rem;
}

.details-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.45rem 0;
  border-bottom: 1px dashed rgba(226, 232, 240, 0.6);
}

.details-row:last-child {
  border-bottom: none;
}

.details-label {
  color: var(--text-muted);
  font-size: 0.875rem;
  flex-shrink: 0;
}

.details-value {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-main);
  text-align: right;
  word-break: break-word;
}

/* Spinner */
.spinner {
  border: 2.5px solid rgba(255, 255, 255, 0.3);
  border-top: 2.5px solid #FFFFFF;
  border-radius: 50%;
  width: 18px;
  height: 18px;
  animation: spin 0.8s linear infinite;
  margin-right: 8px;
  display: none;
}

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

/* Responsive Overrides */
@media (max-width: 480px) {
  .app-main {
    padding: 0.875rem 0.75rem;
  }
  
  .card {
    padding: 1.25rem 1rem;
    border-radius: var(--radius-lg);
  }
  
  h1 {
    font-size: 1.25rem;
  }
}