/* ============================================================
   PAYPAL AUTHENTIC CHECKOUT THEME - ENHANCED
   ============================================================ */

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

:root {
  /* PayPal Official Colors */
  --paypal-blue: #003087;
  --paypal-light-blue: #009cde;
  --paypal-gold: #ffc439;
  --paypal-dark: #1a1a1a;
  
  /* Neutrals */
  --white: #ffffff;
  --light-gray: #f5f5f5;
  --medium-gray: #e8e8e8;
  --dark-gray: #666666;
  --text-dark: #1a1a1a;
  --text-light: #666666;
  
  /* Status */
  --success: #0070ba;
  --error: #d32f2f;
  --warning: #ffc439;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  background: var(--light-gray);
  color: var(--text-dark);
  line-height: 1.5;
  min-height: 100vh;
}

/* ============================================================
   CONTAINER & LAYOUT
   ============================================================ */

.paypal-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--light-gray);
}

/* ============================================================
   HEADER
   ============================================================ */

.paypal-header {
  background: var(--white);
  border-bottom: 1px solid var(--medium-gray);
  padding: var(--spacing-lg) var(--spacing-md);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.paypal-logo {
  height: 32px;
  width: auto;
  object-fit: contain;
}

.sponsored-badge {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  background: rgba(0, 48, 135, 0.08);
  border: 1px solid rgba(0, 48, 135, 0.15);
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--paypal-blue);
}

.sponsored-badge svg {
  flex-shrink: 0;
  color: var(--success);
  width: 12px;
  height: 12px;
}

.badge-text {
  color: var(--text-light);
}

.badge-paypal {
  color: var(--paypal-blue);
  font-weight: 700;
}

.header-security {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 13px;
  color: var(--text-light);
  font-weight: 500;
}

.header-security svg {
  color: var(--success);
  flex-shrink: 0;
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */

.paypal-main {
  flex: 1;
  padding: var(--spacing-xl) var(--spacing-md);
}

.checkout-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: var(--spacing-xl);
}

/* ============================================================
   FORM SECTION
   ============================================================ */

.checkout-form-section {
  background: var(--white);
  border-radius: 8px;
  padding: var(--spacing-xl);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.form-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: var(--spacing-lg);
}

/* Progress Bar */
.progress-bar {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-2xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--medium-gray);
}

.progress-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  flex-shrink: 0;
}

.step-number {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--medium-gray);
  color: var(--text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  transition: all 0.3s ease;
  border: 2px solid var(--medium-gray);
}

.progress-step.active .step-number {
  background: var(--paypal-blue);
  color: var(--white);
  border-color: var(--paypal-blue);
  box-shadow: 0 0 0 4px rgba(0, 48, 135, 0.1);
}

.progress-step.completed .step-number {
  background: var(--success);
  color: var(--white);
  border-color: var(--success);
}

.step-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: color 0.3s ease;
}

.progress-step.active .step-label {
  color: var(--paypal-blue);
  font-weight: 700;
}

.progress-line {
  flex: 1;
  height: 2px;
  background: var(--medium-gray);
  margin: 0 var(--spacing-md) var(--spacing-lg);
  transition: background 0.3s ease;
}

.progress-line.active {
  background: var(--paypal-blue);
}

/* Form Steps */
.form-step {
  display: none;
}

.form-step.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Form Groups */
.paypal-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

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

.form-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dark);
  display: block;
}

.form-input {
  padding: 12px 14px;
  border: 1px solid var(--medium-gray);
  border-radius: 4px;
  font-size: 14px;
  font-family: inherit;
  color: var(--text-dark);
  background: var(--white);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

.form-input::placeholder {
  color: var(--text-light);
}

.form-input:focus {
  border-color: var(--paypal-blue);
  box-shadow: 0 0 0 3px rgba(0, 48, 135, 0.1);
}

.form-input.valid {
  border-color: var(--success);
}

.form-input.invalid {
  border-color: var(--error);
}

.field-error {
  font-size: 12px;
  color: var(--error);
  min-height: 16px;
  display: block;
}

/* Currency Selection */
.currency-buttons {
  display: flex;
  gap: var(--spacing-md);
}

.currency-btn {
  flex: 1;
  padding: 12px;
  border: 1px solid var(--medium-gray);
  border-radius: 4px;
  background: var(--white);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dark);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.currency-btn:hover {
  border-color: var(--paypal-blue);
  background: rgba(0, 48, 135, 0.02);
}

.currency-btn.active {
  background: var(--paypal-blue);
  color: var(--white);
  border-color: var(--paypal-blue);
}

.currency-flag {
  font-size: 18px;
}

/* Amount Input */
.amount-input-wrapper {
  display: flex;
  align-items: center;
  border: 1px solid var(--medium-gray);
  border-radius: 4px;
  background: var(--white);
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.amount-input-wrapper:focus-within {
  border-color: var(--paypal-blue);
  box-shadow: 0 0 0 3px rgba(0, 48, 135, 0.1);
}

.currency-symbol {
  padding: 0 12px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-light);
  background: var(--light-gray);
  border-right: 1px solid var(--medium-gray);
  user-select: none;
}

.amount-input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 12px 14px;
  font-size: 18px;
  font-weight: 700;
}

.amount-input::placeholder {
  color: var(--text-light);
  font-weight: 400;
}

.amount-hint {
  font-size: 12px;
  color: var(--text-light);
  margin-top: var(--spacing-sm);
}

/* Preset Amounts */
.preset-amounts {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin-top: var(--spacing-md);
}

.preset-btn {
  padding: 8px 16px;
  border: 1px solid var(--medium-gray);
  border-radius: 4px;
  background: var(--white);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dark);
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

.preset-btn:hover {
  border-color: var(--paypal-blue);
  color: var(--paypal-blue);
}

.preset-btn.selected {
  background: var(--paypal-blue);
  color: var(--white);
  border-color: var(--paypal-blue);
}

/* Form Security Info */
.form-security-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: rgba(0, 112, 186, 0.05);
  border-radius: 4px;
  font-size: 12px;
  color: var(--success);
  margin-top: var(--spacing-lg);
}

.form-security-info svg {
  flex-shrink: 0;
  color: var(--success);
}

/* ============================================================
   BUTTONS
   ============================================================ */

.paypal-button {
  padding: 14px 24px;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  width: 100%;
  text-transform: none;
  letter-spacing: normal;
}

.paypal-button-primary {
  background: var(--paypal-blue);
  color: var(--white);
}

.paypal-button-primary:hover {
  background: #002366;
}

.paypal-button-primary:active {
  background: #001a4d;
}

.paypal-button-secondary {
  background: var(--light-gray);
  color: var(--text-dark);
  border: 1px solid var(--medium-gray);
}

.paypal-button-secondary:hover {
  background: var(--medium-gray);
}

/* ============================================================
   REVIEW CARD
   ============================================================ */

.review-card {
  background: var(--light-gray);
  border-radius: 4px;
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.review-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--medium-gray);
}

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

.review-row.review-amount {
  background: var(--white);
  padding: var(--spacing-md);
  margin: var(--spacing-md) -var(--spacing-lg) -var(--spacing-lg) -var(--spacing-lg);
  border-radius: 0 0 4px 4px;
  border-bottom: none;
}

.review-label {
  font-size: 14px;
  color: var(--text-light);
  font-weight: 500;
}

.review-value {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-dark);
}

.review-row.review-amount .review-value {
  color: var(--paypal-blue);
  font-size: 18px;
}

/* PayPal Info Box */
.paypal-info-box {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: rgba(0, 112, 186, 0.05);
  border-left: 3px solid var(--success);
  border-radius: 4px;
  font-size: 13px;
  color: var(--text-dark);
  margin-bottom: var(--spacing-lg);
}

.paypal-info-box svg {
  color: var(--success);
  flex-shrink: 0;
}

/* PayPal Buttons Container */
.paypal-buttons-container {
  margin: var(--spacing-lg) 0;
  min-height: 60px;
}

/* ============================================================
   SUCCESS & ERROR STATES
   ============================================================ */

.success-container,
.error-container {
  text-align: center;
  padding: var(--spacing-xl) 0;
}

.success-icon,
.error-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
}

.success-icon {
  background: #e8f5e9;
  color: var(--success);
}

.error-icon {
  background: #ffebee;
  color: var(--error);
}

.success-title,
.error-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.success-message,
.error-message {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: var(--spacing-lg);
}

.order-id-box {
  background: var(--light-gray);
  border-radius: 4px;
  padding: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  text-align: center;
}

.order-label {
  display: block;
  font-size: 12px;
  color: var(--text-light);
  margin-bottom: var(--spacing-xs);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.order-id {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--paypal-blue);
  font-family: 'Courier New', monospace;
  word-break: break-all;
}

/* ============================================================
   SUMMARY SIDEBAR
   ============================================================ */

.checkout-summary {
  background: var(--white);
  border-radius: 8px;
  padding: var(--spacing-lg);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  height: fit-content;
  position: sticky;
  top: 100px;
}

.summary-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--medium-gray);
}

.summary-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
  font-size: 14px;
}

.summary-label {
  color: var(--text-light);
}

.summary-value {
  font-weight: 600;
  color: var(--text-dark);
}

.summary-item.total {
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--medium-gray);
  font-size: 16px;
  font-weight: 700;
}

.summary-item.total .summary-value {
  color: var(--paypal-blue);
  font-size: 18px;
}

.summary-divider {
  height: 1px;
  background: var(--medium-gray);
  margin: var(--spacing-md) 0;
}

/* PayPal Security Info */
.paypal-security-info {
  background: rgba(0, 112, 186, 0.05);
  border-radius: 4px;
  padding: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  border-left: 3px solid var(--success);
}

.security-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 13px;
  font-weight: 600;
  color: var(--paypal-blue);
  margin-bottom: var(--spacing-xs);
}

.security-header svg {
  color: var(--success);
  flex-shrink: 0;
}

.security-text {
  font-size: 12px;
  color: var(--text-light);
  margin: 0;
}

/* Trust Badges */
.trust-badges {
  margin: var(--spacing-lg) 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.trust-badge-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--light-gray);
  border-radius: 4px;
  transition: all 0.2s;
}

.trust-badge-item:hover {
  background: rgba(0, 48, 135, 0.05);
}

.badge-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--success);
  flex-shrink: 0;
  border: 1px solid var(--medium-gray);
}

.badge-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.badge-content strong {
  font-size: 13px;
  color: var(--text-dark);
  font-weight: 700;
}

.badge-content small {
  font-size: 11px;
  color: var(--text-light);
  font-weight: 500;
}

/* PayPal Badge */
.paypal-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg) var(--spacing-md);
  background: rgba(0, 48, 135, 0.08);
  border: 1px solid rgba(0, 48, 135, 0.15);
  border-radius: 4px;
  margin-top: var(--spacing-lg);
}

.badge-seal {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--paypal-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
}

.badge-text-small {
  font-size: 12px;
  font-weight: 700;
  color: var(--paypal-blue);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ============================================================
   FOOTER
   ============================================================ */

.paypal-footer {
  background: var(--white);
  border-top: 1px solid var(--medium-gray);
  padding: var(--spacing-lg) var(--spacing-md);
  text-align: center;
  font-size: 12px;
  color: var(--text-light);
  margin-top: var(--spacing-xl);
}

.paypal-footer a {
  color: var(--paypal-blue);
  text-decoration: none;
}

.paypal-footer a:hover {
  text-decoration: underline;
}

/* ============================================================
   OVERLAY & PROCESSING
   ============================================================ */

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.overlay.hidden {
  display: none;
}

.overlay-content {
  background: var(--white);
  border-radius: 8px;
  padding: var(--spacing-2xl);
  text-align: center;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--medium-gray);
  border-top-color: var(--paypal-blue);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--spacing-lg);
}

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

.overlay-content p {
  font-size: 14px;
  color: var(--text-light);
}

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

@media (max-width: 768px) {
  .checkout-container {
    grid-template-columns: 1fr;
  }

  .checkout-summary {
    position: static;
    top: auto;
  }

  .paypal-main {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  .checkout-form-section {
    padding: var(--spacing-lg);
  }

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

  .progress-line {
    margin: 0 var(--spacing-sm) var(--spacing-lg);
  }

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

  .currency-btn {
    flex: 1;
  }

  .form-title {
    font-size: 18px;
  }

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

  .sponsored-badge {
    font-size: 10px;
    padding: 3px 6px;
  }
}

@media (max-width: 480px) {
  .header-content {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .paypal-logo {
    height: 28px;
  }

  .checkout-form-section {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .progress-bar {
    flex-wrap: wrap;
    gap: 0;
  }

  .progress-step {
    flex: 1;
    min-width: 80px;
  }

  .progress-line {
    width: 100%;
    height: 1px;
    margin: var(--spacing-md) 0;
    order: 4;
  }

  .form-title {
    font-size: 16px;
  }

  .paypal-button {
    padding: 12px 16px;
    font-size: 13px;
  }

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

  .trust-badge-item {
    padding: var(--spacing-sm);
  }
}