/* =====================================================
   VIEW TRANSITION API ANIMATIONS
   ===================================================== */

/* Smooth cross-fade transition */
::view-transition-old(root) {
  animation: fadeOutSlideLeft 0.4s ease-in-out;
}

::view-transition-new(root) {
  animation: fadeInSlideRight 0.4s ease-in-out;
}

@keyframes fadeOutSlideLeft {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(-40px);
  }
}

@keyframes fadeInSlideRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Smooth page background transition */
::view-transition-old(background) {
  animation: fadeOut 0.3s ease-in-out;
}

::view-transition-new(background) {
  animation: fadeIn 0.3s ease-in-out;
}

/* Smooth content transition */
::view-transition-old(content) {
  animation: slideOutUp 0.4s ease-in-out;
}

::view-transition-new(content) {
  animation: slideInDown 0.4s ease-in-out;
}

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

@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =====================================================
   REGISTRATION FLOW STYLING
   ===================================================== */

:root {
  /* Frontend Color Palette - Red & Orange */
  --color-base-primary: #e53e3e;
  --color-base-secondary: #c53030;
  --color-base-accent: #ff6b35;
  --color-base-success: #10b981;
  --color-base-danger: #ef4444;

  --color-primary-light: #fdf2f2;
  --color-primary: #e53e3e;
  --color-primary-dark: #c53030;

  --color-accent: #ff6b35;
  --color-accent-dark: #e55a24;

  --color-success: #10b981;
  --color-success-light: #d1fae5;

  --color-danger: #ef4444;
  --color-danger-light: #fee2e2;

  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;

  /* Font Families */
  --font-sans: 'Poppins', system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif;
  --font-serif: 'Georgia', serif;
  --font-mono: 'Courier New', monospace;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

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

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
}

/* =====================================================
   RESET & BASE STYLES
   ===================================================== */

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

html {
  scroll-behavior: smooth;
  overflow-y: scroll;
}

body {
  font-family: var(--font-sans);
  background: linear-gradient(135deg, rgba(229,62,62,0.08) 0%, rgba(255,107,53,0.06) 100%), #ffffff;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  color: var(--color-gray-900);
  width: 100%;
  box-sizing: border-box;
}

/* =====================================================
   REGISTRATION CONTAINER
   ===================================================== */

.registration-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  animation: slideInUp 0.6s ease-out;
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =====================================================
   LOGO SECTION
   ===================================================== */

.registration-logo {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  animation: fadeIn 0.5s ease-out;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.registration-logo a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.registration-logo .qrink-logo {
  width: 60px;
  height: 60px;
  object-fit: contain;
  border-radius: 12px;
  filter: drop-shadow(0 8px 24px rgba(229, 62, 62, 0.25));
  transition: transform 0.3s ease;
}

.registration-logo .qrink-logo:hover {
  transform: scale(1.05);
}

.registration-logo .qrink-text {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* =====================================================
   PROGRESS INDICATOR
   ===================================================== */

.registration-progress {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  perspective: 1000px;
}

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

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: white;
  color: var(--color-gray-400);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  border: 2px solid var(--color-gray-300);
  transition: all var(--transition-base);
}

.step-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-gray-700);
  text-align: center;
  opacity: 0.8;
  transition: opacity var(--transition-base);
}

.progress-step.active .step-number {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: white;
  border-color: white;
  box-shadow: 0 0 20px rgba(229, 62, 62, 0.4);
  transform: scale(1.1);
}

.progress-step.active .step-label {
  opacity: 1;
  color: var(--color-primary);
  font-weight: 700;
}

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

.progress-step.completed .step-label {
  color: var(--color-success);
}

.progress-line {
  height: 3px;
  flex: 1;
  background-color: var(--color-gray-200);
  margin: 0 var(--spacing-sm);
  border-radius: 2px;
  transition: background-color var(--transition-base);
}

.progress-line.completed {
  background-color: var(--color-success);
}

/* =====================================================
   REGISTRATION CARD
   ===================================================== */

.registration-card {
  margin: 0 auto;
  background: white;
  border-radius: var(--radius-2xl);
  padding: 0;
  box-shadow: var(--shadow-xl);
  animation: fadeIn 0.5s ease-out 0.2s both;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  width: 100%;
  max-width: 1200px;
}

.registration-card.plan-selection {
  grid-template-columns: 1fr;
  padding: var(--spacing-xl);
}

.registration-content {
  padding: var(--spacing-xl);
  display: flex;
  flex-direction: column;
}

.registration-features {
  background: linear-gradient(135deg, rgba(229,62,62,0.05) 0%, rgba(255,107,53,0.08) 100%);
  padding: var(--spacing-xl);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.feature-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

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

.feature-icon {
  width: 60px;
  height: 60px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2rem;
}

.feature-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-gray-900);
}

.feature-description {
  font-size: 0.9rem;
  color: var(--color-gray-600);
  line-height: 1.5;
}

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.registration-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.registration-header h1 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-sm);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.registration-header p {
  font-size: 0.9rem;
  color: var(--color-gray-500);
  font-weight: 500;
}

/* =====================================================
   FORMS & INPUTS
   ===================================================== */

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

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

.form-group.checkbox-group {
  flex-direction: row;
  align-items: center;
}

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

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-700);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.required {
  color: var(--color-danger);
  font-weight: 700;
}

.form-input {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: all var(--transition-base);
  background-color: white;
  color: var(--color-gray-900);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(229, 62, 62, 0.1);
  background-color: var(--color-primary-light);
}

.form-input::placeholder {
  color: var(--color-gray-400);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
  font-family: var(--font-sans);
}

.form-hint {
  font-size: 0.8rem;
  color: var(--color-gray-500);
  font-weight: 500;
}

/* Checkboxes */
.checkbox-group {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--spacing-sm);
  margin: var(--spacing-md) 0;
  flex-wrap: nowrap;
}

.form-checkbox {
  width: 20px;
  height: 20px;
  min-width: 20px;
  flex-shrink: 0;
  margin: 0;
  cursor: pointer;
  accent-color: var(--color-primary);
  border-radius: var(--radius-sm);
}

.checkbox-label {
  font-size: 0.9rem;
  color: var(--color-gray-700);
  cursor: pointer;
  line-height: 1.5;
  white-space: normal;
  flex: 1;
}

.link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.link:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* Info Box */
.info-box {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background-color: var(--color-primary-light);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  margin: var(--spacing-md) 0;
}

.info-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.info-box strong {
  color: var(--color-primary-dark);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--radius-lg);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn-secondary {
  background-color: var(--color-gray-200);
  color: var(--color-gray-700);
  border: 2px solid var(--color-gray-300);
}

.btn-secondary:hover {
  background-color: var(--color-gray-300);
  border-color: var(--color-gray-400);
}

.btn-large {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
}

.btn-icon {
  font-size: 1.2em;
}

.btn-success {
  background: linear-gradient(135deg, var(--color-success), #059669);
}

.btn-success:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.button-group {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.button-group.full-width {
  margin-top: var(--spacing-xl);
}

.button-group .btn {
  flex: 1;
}

/* =====================================================
   PLAN SELECTION
   ===================================================== */

.plan-selection {
  max-width: 750px;
}

.plans-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}

.plan-card {
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg);
  position: relative;
  transition: all var(--transition-base);
  background: white;
  display: flex;
  flex-direction: column;
}

.plan-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.plan-badge {
  position: absolute;
  top: -12px;
  left: 20px;
  background-color: var(--color-primary);
  color: white;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.plan-badge.pro {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
}

.plan-header {
  margin-bottom: var(--spacing-md);
}

.plan-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--spacing-sm);
}

.plan-price {
  display: flex;
  align-items: baseline;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.currency {
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

.amount {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.plan-description {
  margin-bottom: var(--spacing-md);
}

.plan-description p {
  font-size: 0.9rem;
  color: var(--color-gray-600);
}

.plan-features {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  max-height: 300px;
  overflow-y: auto;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  background-color: var(--color-gray-50);
}

.plan-features::-webkit-scrollbar {
  width: 6px;
}

.plan-features::-webkit-scrollbar-track {
  background: var(--color-gray-100);
  border-radius: 10px;
}

.plan-features::-webkit-scrollbar-thumb {
  background: var(--color-gray-300);
  border-radius: 10px;
}

.plan-features::-webkit-scrollbar-thumb:hover {
  background: var(--color-gray-400);
}

.feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.9rem;
  color: var(--color-gray-700);
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.feature-item:hover {
  background-color: var(--color-gray-100);
}

.feature-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
}

.feature-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.feature-label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-gray-700);
  display: block;
}

.feature-value {
  font-size: 0.85rem;
  color: var(--color-primary);
  font-weight: 700;
  display: block;
}

.feature-check {
  color: var(--color-success);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.feature-icon-check {
  color: var(--color-success);
  font-weight: 700;
  font-size: 1.1rem;
}

.plan-select-btn {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid var(--color-primary);
  background-color: white;
  color: var(--color-primary);
  border-radius: var(--radius-lg);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.plan-select-btn:hover {
  background-color: var(--color-primary-light);
}

.plan-select-btn.selected {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: white;
  border-color: transparent;
}

.plan-radio {
  display: none;
}

.plan-info {
  text-align: center;
  padding: var(--spacing-lg);
  background-color: #fffbeb;
  border-radius: var(--radius-lg);
  font-size: 0.9rem;
  color: var(--color-gray-700);
  margin-top: var(--spacing-lg);
}

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

.registration-footer {
  text-align: center;
  margin-top: var(--spacing-xl);

  /* keeps footer content from causing overflow on small screens */
  max-width: 100%;
}

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

/* Prevent accidental horizontal scrolling on small screens */
html,
body {
  max-width: 100%;
  overflow-x: hidden;
}

@media (max-width: 900px) {
  body {
    padding: var(--spacing-sm);
  }

  /* Card becomes single-column (content + features stack) */
  .registration-card {
    grid-template-columns: 1fr;
  }

  /* Plans grid becomes single-column */
  .plans-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  /* Plan selection card adjustments */
  .registration-card.plan-selection {
    max-width: 100%;
    padding: var(--spacing-lg);
  }

  /* Two-column rows become single-column */
  .form-row {
    grid-template-columns: 1fr;
  }

  /* Buttons stack */
  .button-group {
    flex-direction: column;
  }

  .button-group .btn {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .registration-content,
  .registration-features {
    padding: var(--spacing-lg);
  }

  /* Plan card adjustments for small screens */
  .plan-card {
    padding: var(--spacing-md);
  }

  .plan-name {
    font-size: 1.1rem;
  }

  .amount {
    font-size: 1.5rem;
  }

  .plan-features {
    max-height: 250px;
    padding: var(--spacing-sm);
  }

  .feature-item {
    padding: var(--spacing-xs);
    gap: var(--spacing-xs);
  }

  .feature-icon {
    font-size: 1.2rem;
    width: 28px;
    height: 28px;
  }

  .feature-label,
  .feature-value {
    font-size: 0.85rem;
  }

  .plan-select-btn {
    padding: var(--spacing-sm);
    font-size: 0.9rem;
  }

  .plan-info {
    padding: var(--spacing-md);
    font-size: 0.85rem;
  }
  }

  /* Progress indicator should wrap instead of overflowing */
  .registration-progress {
    flex-wrap: wrap;
    gap: var(--spacing-xs);
  }

  .progress-line {
    display: none;
  }

  .step-label {
    max-width: 90px;
    word-break: break-word;
  }

  /* Long inputs/selects should not force overflow */
  .form-input {
    width: 100%;
    max-width: 100%;
  }
}