/* ============================================
   LINNEU - MODERN FINTECH UI
   Premium Glassmorphism Design System
   ============================================ */

/* ============================================
   1. CSS VARIABLES & CUSTOM PROPERTIES
   ============================================ */

:root {
  /* Primary Green Palette - Sophisticated/Muted */
  --primary-50: #f0fdf4;
  --primary-100: #dcfce7;
  --primary-200: #bbf7d0;
  --primary-300: #86efac;
  --primary-400: #4ade80;
  --primary-500: #22c55e;
  --primary-600: #16a34a;
  --primary-700: #15803d;
  --primary-800: #166534;
  --primary-900: #14532d;

  /* Neutral Palette */
  --neutral-50: #fafafa;
  --neutral-100: #f5f5f5;
  --neutral-200: #e5e5e5;
  --neutral-300: #d4d4d4;
  --neutral-400: #a3a3a3;
  --neutral-500: #737373;
  --neutral-600: #525252;
  --neutral-700: #404040;
  --neutral-800: #262626;
  --neutral-900: #171717;

  /* Semantic Colors */
  --success: #10b981;
  --success-light: #d1fae5;
  --error: #ef4444;
  --error-light: #fee2e2;
  --warning: #f59e0b;
  --warning-light: #fef3c7;

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-bg-light: rgba(255, 255, 255, 0.5);
  --glass-border: rgba(255, 255, 255, 0.4);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  --backdrop-blur: 20px;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
  --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --gradient-error: linear-gradient(135deg, #f43f5e 0%, #e11d48 100%);
  --gradient-blob-1: linear-gradient(135deg, #22c55e 0%, #4ade80 100%);
  --gradient-blob-2: linear-gradient(135deg, #10b981 0%, #34d399 100%);
  --gradient-blob-3: linear-gradient(135deg, #a3e635 0%, #84cc16 100%);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Animation Timings */
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

/* ============================================
   2. RESET & BASE STYLES
   ============================================ */

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

body {
  font-family: var(--font-sans);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  background: var(--neutral-50);
  color: var(--neutral-800);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ============================================
   3. ANIMATED BACKGROUND SYSTEM
   ============================================ */

.animated-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background: var(--neutral-50);
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  will-change: transform;
}

.blob-1 {
  width: 600px;
  height: 600px;
  background: var(--gradient-blob-1);
  top: -200px;
  right: -100px;
  animation: blob-float-1 20s ease-in-out infinite;
}

.blob-2 {
  width: 500px;
  height: 500px;
  background: var(--gradient-blob-2);
  bottom: -150px;
  left: -100px;
  animation: blob-float-2 25s ease-in-out infinite;
}

.blob-3 {
  width: 400px;
  height: 400px;
  background: var(--gradient-blob-3);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: blob-float-3 18s ease-in-out infinite;
}

@keyframes blob-float-1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -50px) scale(1.1); }
  66% { transform: translate(-20px, 20px) scale(0.9); }
}

@keyframes blob-float-2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-40px, 30px) scale(1.05); }
  66% { transform: translate(50px, -20px) scale(0.95); }
}

@keyframes blob-float-3 {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -50%) scale(1.15); }
}

/* Page-specific blob colors */
.success-page .blob-1 { background: var(--gradient-success); }
.success-page .blob-2 { background: linear-gradient(135deg, #34d399 0%, #6ee7b7 100%); }

.error-page .blob-1 { background: var(--gradient-error); }
.error-page .blob-2 { background: linear-gradient(135deg, #fb7185 0%, #fda4af 100%); }
.error-page .blob-3 { background: linear-gradient(135deg, #fecdd3 0%, #fda4af 100%); }

/* ============================================
   4. GLASSMORPHISM COMPONENTS
   ============================================ */

.container {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--backdrop-blur));
  -webkit-backdrop-filter: blur(var(--backdrop-blur));
  border-radius: var(--radius-2xl);
  border: 1px solid var(--glass-border);
  padding: var(--space-10);
  max-width: 480px;
  width: 100%;
  text-align: center;
  box-shadow: var(--glass-shadow);
  position: relative;
  z-index: 1;
  animation: fade-in-up var(--duration-slow) var(--ease-out);
}

.container::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.5), transparent 50%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.security-page .container {
  max-width: 600px;
}

/* ============================================
   5. SVG ICON SYSTEM
   ============================================ */

.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.icon svg {
  width: 100%;
  height: 100%;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

.icon-sm { width: 16px; height: 16px; }
.icon-md { width: 20px; height: 20px; }
.icon-lg { width: 24px; height: 24px; }
.icon-xl { width: 32px; height: 32px; }
.icon-2xl { width: 48px; height: 48px; }
.icon-3xl { width: 64px; height: 64px; }

.icon-primary svg { stroke: var(--primary-500); }
.icon-success svg { stroke: var(--success); }
.icon-error svg { stroke: var(--error); }
.icon-muted svg { stroke: var(--neutral-400); }
.icon-white svg { stroke: white; }

/* ============================================
   6. TYPOGRAPHY
   ============================================ */

h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--neutral-900);
  margin-bottom: var(--space-2);
}

h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--neutral-800);
  margin-bottom: var(--space-4);
}

h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--neutral-700);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.subtitle, .message {
  color: var(--neutral-600);
  margin-bottom: var(--space-8);
  line-height: 1.6;
  font-size: 0.9375rem;
}

/* ============================================
   7. LOGO
   ============================================ */

.logo {
  width: 110px;
  height: 110px;
  margin-bottom: var(--space-5);
  border-radius: var(--radius-full);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* ============================================
   8. FEATURE LIST COMPONENT
   ============================================ */

.features {
  background: var(--glass-bg-light);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: var(--space-6);
  margin-bottom: var(--space-8);
  text-align: left;
}

.feature {
  display: flex;
  align-items: center;
  margin-bottom: var(--space-4);
  opacity: 0;
  animation: fade-in-up var(--duration-normal) var(--ease-out) forwards;
}

.feature:nth-child(1) { animation-delay: 100ms; }
.feature:nth-child(2) { animation-delay: 175ms; }
.feature:nth-child(3) { animation-delay: 250ms; }
.feature:nth-child(4) { animation-delay: 325ms; }
.feature:nth-child(5) { animation-delay: 400ms; }
.feature:nth-child(6) { animation-delay: 475ms; }

.feature:last-child { margin-bottom: 0; }

.feature-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: var(--space-3);
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.25);
}

.feature-icon svg {
  width: 20px;
  height: 20px;
  stroke: white;
  stroke-width: 2;
  fill: none;
}

.feature-text {
  color: var(--neutral-700);
  font-size: 0.9375rem;
  font-weight: 500;
}

/* ============================================
   9. BUTTON COMPONENTS
   ============================================ */

.btn-primary,
.connect-btn,
.pay-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  background: var(--gradient-primary);
  color: white;
  border: none;
  padding: var(--space-4) var(--space-8);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  width: 100%;
  transition:
    transform var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
  font-family: inherit;
}

.btn-primary::before,
.connect-btn::before,
.pay-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--duration-normal);
}

.btn-primary:hover,
.connect-btn:hover,
.pay-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(34, 197, 94, 0.35);
}

.btn-primary:hover::before,
.connect-btn:hover::before,
.pay-btn:hover::before {
  opacity: 1;
}

.btn-primary:active,
.connect-btn:active,
.pay-btn:active {
  transform: translateY(0);
}

.btn-primary:disabled,
.connect-btn:disabled,
.pay-btn:disabled {
  background: var(--neutral-300);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-primary:disabled::before,
.connect-btn:disabled::before,
.pay-btn:disabled::before {
  display: none;
}

/* Secondary Button (Outline) */
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  background: white;
  color: var(--primary-600);
  border: 2px solid var(--primary-500);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-full);
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  font-family: inherit;
  text-decoration: none;
  transition:
    transform var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out),
    background var(--duration-fast) var(--ease-out);
}

.btn-secondary:hover {
  background: var(--primary-50);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(34, 197, 94, 0.2);
}

.btn-secondary:active {
  transform: translateY(0);
}

/* Button Modifiers */
.btn-large {
  padding: var(--space-4) var(--space-8);
  font-size: 1rem;
}

.btn-full {
  width: 100%;
}

/* Secondary/Copy Button */
.copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  background: var(--primary-500);
  color: white;
  border: none;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.875rem;
  font-family: inherit;
  transition:
    transform var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out);
}

.copy-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(34, 197, 94, 0.3);
}

.copy-btn svg {
  width: 16px;
  height: 16px;
  stroke: white;
}

/* Back Button */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--gradient-primary);
  color: white;
  text-decoration: none;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-full);
  font-weight: 600;
  transition:
    transform var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out);
}

.back-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(34, 197, 94, 0.35);
}

.back-btn svg {
  width: 18px;
  height: 18px;
  stroke: white;
}

/* ============================================
   10. FORM COMPONENTS
   ============================================ */

.cpf-input-container {
  margin: var(--space-5) 0;
}

.cpf-label {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--neutral-600);
  font-size: 0.875rem;
  font-weight: 500;
}

.cpf-input {
  width: 100%;
  padding: var(--space-4);
  font-size: 1rem;
  border: 2px solid var(--neutral-200);
  border-radius: var(--radius-xl);
  text-align: center;
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
  background: rgba(255, 255, 255, 0.8);
  font-family: inherit;
}

.cpf-input:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.1);
}

.cpf-input.error {
  border-color: var(--error);
  box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.1);
}

.cpf-hint {
  font-size: 0.75rem;
  color: var(--neutral-500);
  margin-top: var(--space-2);
}

/* ============================================
   11. PAYMENT COMPONENTS
   ============================================ */

.price-tag {
  background: var(--gradient-primary);
  color: white;
  padding: var(--space-6) var(--space-10);
  border-radius: var(--radius-xl);
  margin: var(--space-6) 0;
  text-align: center;
  box-shadow: 0 10px 40px rgba(34, 197, 94, 0.25);
}

.price-tag .amount {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.price-tag .period {
  font-size: 1rem;
  opacity: 0.9;
  margin-top: var(--space-1);
}

.payment-methods {
  display: flex;
  gap: var(--space-4);
  margin: var(--space-6) 0;
}

.payment-method {
  flex: 1;
  padding: var(--space-5) var(--space-4);
  border: 2px solid var(--neutral-200);
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition:
    border-color var(--duration-fast),
    transform var(--duration-fast) var(--ease-out),
    background var(--duration-fast);
  background: rgba(255, 255, 255, 0.6);
  text-align: center;
}

.payment-method:hover {
  border-color: var(--primary-400);
  transform: translateY(-2px);
}

.payment-method.selected {
  border-color: var(--primary-500);
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.08) 0%, rgba(22, 163, 74, 0.08) 100%);
}

.payment-method .method-icon {
  width: 40px;
  height: 40px;
  margin: 0 auto var(--space-2);
  display: flex;
  align-items: center;
  justify-content: center;
}

.payment-method .method-icon svg {
  width: 32px;
  height: 32px;
  stroke: var(--primary-600);
}

.payment-method.selected .method-icon svg {
  stroke: var(--primary-500);
}

.payment-method .label {
  font-weight: 600;
  color: var(--neutral-800);
  font-size: 0.9375rem;
}

.payment-method .desc {
  font-size: 0.75rem;
  color: var(--neutral-500);
  margin-top: var(--space-1);
}

/* QR Code Container */
.qr-container {
  background: var(--glass-bg-light);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.3);
  margin: var(--space-6) 0;
}

.qr-container h3 {
  justify-content: center;
  margin-bottom: var(--space-4);
}

.qr-container img {
  max-width: 200px;
  margin: var(--space-4) auto;
  display: block;
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.pix-copy {
  background: white;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  word-break: break-all;
  font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
  font-size: 0.6875rem;
  margin: var(--space-4) 0;
  border: 1px solid var(--neutral-200);
  max-height: 60px;
  overflow-y: auto;
  color: var(--neutral-700);
}

/* Credit Card Redirect */
.redirect-info {
  background: var(--warning-light);
  border: 1px solid var(--warning);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  margin: var(--space-6) 0;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  text-align: left;
}

.redirect-info .redirect-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
}

.redirect-info .redirect-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--warning);
}

.redirect-info p {
  color: #92400e;
  font-size: 0.875rem;
  line-height: 1.5;
  margin: 0;
}

.redirect-info strong {
  font-weight: 600;
}

/* ============================================
   12. SUCCESS COMPONENTS
   ============================================ */

.success-section {
  padding: var(--space-6) 0;
}

.success-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-4);
  background: var(--success-light);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: success-pop var(--duration-slow) var(--ease-out);
}

.success-icon svg {
  width: 40px;
  height: 40px;
  stroke: var(--success);
  stroke-width: 2.5;
}

.success-section h2 {
  color: var(--success);
  margin-bottom: var(--space-3);
}

.success-section p {
  color: var(--neutral-600);
  line-height: 1.6;
}

/* ============================================
   13. ERROR COMPONENTS
   ============================================ */

.error-box {
  background: var(--error-light);
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  margin-bottom: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-align: left;
  margin-top: var(--space-4);
}

.error-box .error-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
}

.error-box .error-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--error);
}

.error-box p {
  color: var(--error);
  font-size: 0.875rem;
  margin: 0;
}

.error-page .error-icon-large {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-4);
  background: var(--error-light);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

.error-page .error-icon-large svg {
  width: 40px;
  height: 40px;
  stroke: var(--error);
  stroke-width: 2.5;
}

/* ============================================
   14. LOADING COMPONENTS
   ============================================ */

.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-6) 0;
}

.spinner {
  width: 44px;
  height: 44px;
  border: 3px solid rgba(34, 197, 94, 0.15);
  border-top-color: var(--primary-500);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.status-message {
  color: var(--neutral-600);
  font-size: 0.9375rem;
}

/* Button Loading State */
.btn-loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* ============================================
   15. TIP/INFO BOX
   ============================================ */

.tip {
  margin-top: var(--space-6);
  padding: var(--space-5);
  background: var(--glass-bg-light);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.3);
  font-size: 0.875rem;
  color: var(--neutral-700);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  text-align: left;
}

.tip .tip-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.tip .tip-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--primary-500);
}

.tip strong {
  font-weight: 600;
  color: var(--neutral-800);
}

/* ============================================
   16. SECURITY PAGE COMPONENTS
   ============================================ */

.security-section {
  background: var(--glass-bg-light);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: var(--space-6);
  margin: var(--space-6) 0;
  text-align: left;
}

.security-section h3 {
  color: var(--primary-700);
  margin-bottom: var(--space-4);
}

.security-section h3 svg {
  width: 22px;
  height: 22px;
  stroke: var(--primary-600);
}

.security-section p {
  color: var(--neutral-600);
  line-height: 1.6;
  margin-bottom: var(--space-3);
  font-size: 0.9375rem;
}

.security-section p:last-child {
  margin-bottom: 0;
}

.security-list {
  list-style: none;
}

.security-list li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
  font-size: 0.9375rem;
}

.security-list li svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.security-list li.positive svg {
  stroke: var(--success);
}

.security-list li.negative {
  margin-top: var(--space-4);
  color: var(--error);
}

.security-list li.negative svg {
  stroke: var(--error);
}

.highlight-box {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.08) 0%, rgba(22, 163, 74, 0.12) 100%);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 2px solid var(--primary-500);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  margin: var(--space-6) 0;
}

.highlight-box p {
  color: var(--primary-700);
  font-weight: 600;
  margin: 0;
  text-align: center;
  font-size: 0.9375rem;
}

/* Partners Grid */
.partners {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  margin: var(--space-6) 0;
  flex-wrap: wrap;
}

.partner {
  text-align: center;
}

.partner-logo {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-2);
  background: var(--primary-100);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

.partner-logo svg {
  width: 24px;
  height: 24px;
  stroke: var(--primary-600);
}

.partner-name {
  font-size: 0.8125rem;
  color: var(--neutral-600);
  font-weight: 500;
}

.partner-name small {
  display: block;
  font-weight: 400;
  color: var(--neutral-500);
  margin-top: 2px;
}

/* FAQ */
.faq-item {
  border-bottom: 1px solid var(--neutral-200);
  padding: var(--space-5) 0;
}

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

.faq-question {
  font-weight: 600;
  color: var(--neutral-800);
  margin-bottom: var(--space-2);
  font-size: 0.9375rem;
}

.faq-answer {
  color: var(--neutral-600);
  font-size: 0.875rem;
  line-height: 1.6;
}

/* ============================================
   17. FOOTER/SECURITY BADGE
   ============================================ */

.security {
  margin-top: var(--space-6);
  font-size: 0.75rem;
  color: var(--neutral-500);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.security-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.security-badge svg {
  width: 14px;
  height: 14px;
  stroke: var(--neutral-400);
}

.security a {
  color: var(--primary-600);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.security a:hover {
  color: var(--primary-700);
  text-decoration: underline;
}

/* ============================================
   18. TOAST NOTIFICATION
   ============================================ */

.copied-toast {
  position: fixed;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--neutral-800);
  color: white;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  opacity: 0;
  transition:
    opacity var(--duration-normal),
    transform var(--duration-normal) var(--ease-out);
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.copied-toast svg {
  width: 16px;
  height: 16px;
  stroke: var(--success);
}

.copied-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ============================================
   19. ANIMATIONS
   ============================================ */

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes success-pop {
  0% {
    opacity: 0;
    transform: scale(0.3);
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes draw-check {
  to {
    stroke-dashoffset: 0;
  }
}

.checkmark-animate {
  stroke-dasharray: 50;
  stroke-dashoffset: 50;
  animation: draw-check 0.5s var(--ease-out) forwards;
  animation-delay: 0.2s;
}

/* ============================================
   20. RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 640px) {
  :root {
    --backdrop-blur: 15px;
  }

  body {
    padding: var(--space-4);
  }

  .container {
    padding: var(--space-6);
    border-radius: var(--radius-xl);
  }

  h1 {
    font-size: 1.5rem;
  }

  .logo {
    width: 90px;
    height: 90px;
  }

  .payment-methods {
    flex-direction: column;
    gap: var(--space-3);
  }

  .partners {
    flex-direction: column;
    gap: var(--space-6);
  }

  .blob {
    filter: blur(60px);
    opacity: 0.4;
  }

  .blob-1 {
    width: 300px;
    height: 300px;
  }

  .blob-2 {
    width: 250px;
    height: 250px;
  }

  .blob-3 {
    display: none;
  }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
  .btn-primary:hover,
  .connect-btn:hover,
  .pay-btn:hover,
  .payment-method:hover,
  .copy-btn:hover,
  .back-btn:hover {
    transform: none;
  }

  .btn-primary:hover,
  .connect-btn:hover,
  .pay-btn:hover {
    box-shadow: 0 4px 15px rgba(34, 197, 94, 0.25);
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .blob {
    animation: none;
  }

  .feature {
    animation: none;
    opacity: 1;
  }
}

/* ============================================
   21. PLAN CARDS
   ============================================ */

.plan-cards {
  display: flex;
  gap: var(--space-4);
  margin: var(--space-6) 0;
}

.plan-card {
  flex: 1;
  padding: var(--space-5);
  border: 2px solid var(--neutral-200);
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  background: rgba(255, 255, 255, 0.6);
  text-align: left;
  position: relative;
}

.plan-card:hover {
  border-color: var(--primary-400);
  transform: translateY(-2px);
}

.plan-card.selected {
  border-color: var(--primary-500);
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.08) 0%, rgba(22, 163, 74, 0.08) 100%);
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: white;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}

.plan-header {
  margin-bottom: var(--space-4);
}

.plan-name {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--neutral-800);
}

.plan-price {
  margin-top: var(--space-2);
}

.plan-price .amount {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-600);
}

.plan-price .period {
  font-size: 0.875rem;
  color: var(--neutral-500);
}

.plan-features {
  list-style: none;
  padding: 0;
  margin: 0;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  font-size: 0.875rem;
  color: var(--neutral-600);
}

.plan-features li svg {
  width: 16px;
  height: 16px;
  stroke: var(--primary-500);
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .plan-cards {
    flex-direction: column;
  }

  .plan-card.popular {
    order: -1;
  }
}

/* ============================================
   22. PRICING SECTION (index.html)
   ============================================ */

.pricing-section {
  padding: var(--space-20) 0;
  background: linear-gradient(180deg, var(--neutral-50) 0%, white 100%);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  max-width: 1000px;
  margin: 0 auto;
  align-items: stretch;
}

.pricing-card {
  background: white;
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  border: 1px solid var(--neutral-200);
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  position: relative;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}


.pricing-header {
  text-align: center;
  margin-bottom: var(--space-6);
  position: relative;
}

.pricing-badge {
  display: inline-block;
  background: var(--primary-500);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: absolute;
  white-space: nowrap;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
}

.pricing-plan-name {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--neutral-800);
  margin: 0 0 var(--space-2) 0;
  text-align: center;
  display: block;
}

.pricing-amount {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
  margin-bottom: var(--space-2);
}

.pricing-currency {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--neutral-600);
}

.pricing-value {
  font-size: 3rem;
  font-weight: 700;
  color: var(--neutral-900);
  line-height: 1;
}

.pricing-decimal {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--neutral-700);
}

.pricing-period {
  font-size: 1rem;
  color: var(--neutral-500);
  margin-left: 4px;
}

.pricing-description {
  font-size: 0.875rem;
  color: var(--neutral-500);
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-6) 0;
  flex: 1;
  text-align: left;
}

.pricing-features li {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  font-size: 0.9375rem;
  color: var(--neutral-600);
  border-bottom: 1px solid var(--neutral-100);
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-features li svg {
  stroke: var(--primary-500);
  flex-shrink: 0;
}

.pricing-guarantee {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: 0.875rem;
  color: var(--neutral-500);
  margin-top: var(--space-4);
}

.pricing-guarantee svg {
  stroke: var(--primary-500);
}

@media (max-width: 900px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
  }
}

/* ============================================
   23. UTILITY CLASSES
   ============================================ */

.text-center { text-align: center; }
.text-left { text-align: left; }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-4 { margin-bottom: var(--space-4); }
.hidden { display: none; }