/* 2025 Dark Theme Premium Checkout — Secure & Modern */

:root {
  /* Brand Colors */
  --checkout-primary: #4db8ff;
  --checkout-primary-hover: #66c2ff;
  --checkout-primary-dark: #0077b6;
  --checkout-secondary: #1a1d29;
  --checkout-success: #10b981;
  --checkout-success-glow: rgba(16, 185, 129, 0.3);
  --checkout-error: #ef4444;
  --checkout-warning: #fbbf24;

  /* Dark Theme Palette */
  --dark-bg: #0f1117;
  --dark-surface: #1a1d29;
  --dark-surface-elevated: #252837;
  --dark-surface-hover: #2d3142;
  --dark-border: rgba(255, 255, 255, 0.1);
  --dark-border-subtle: rgba(255, 255, 255, 0.06);
  --dark-border-strong: rgba(77, 184, 255, 0.4);

  /* Light Theme Palette */
  --light-surface: #ffffff;
  --light-surface-subtle: #f8fafc;
  --light-surface-soft: #edf2ff;
  --light-border: #e2e8f0;
  --light-border-strong: #c7d2fe;
  --light-shadow: 0 24px 48px rgba(15, 23, 42, 0.08);
  --light-text-primary: #0f172a;
  --light-text-secondary: #1e293b;
  --light-text-tertiary: #475569;
  --light-text-muted: #64748b;
  --light-accent: #635bff;
  --light-accent-strong: #4338ca;

  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.85);
  --text-tertiary: rgba(255, 255, 255, 0.6);
  --text-muted: rgba(255, 255, 255, 0.45);

  /* Spacing */
  --space-2xs: 0.35rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 2.75rem;

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;
  --radius-2xl: 1.75rem;
  --radius-full: 9999px;

  /* Shadows - Enhanced for dark theme */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
  --shadow-xl: 0 24px 56px rgba(0, 0, 0, 0.7);
  --shadow-glow: 0 0 20px rgba(77, 184, 255, 0.3);
  --shadow-glow-strong: 0 0 30px rgba(77, 184, 255, 0.5);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-standard: 240ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Gradients */
  --checkout-hero-gradient: linear-gradient(135deg, #1a1d29 0%, #0f1117 50%, #1a1d29 100%);
  --checkout-accent-gradient: linear-gradient(135deg, #4db8ff 0%, #0096d9 100%);
  --checkout-surface-gradient: linear-gradient(155deg, #1a1d29 0%, #252837 100%);

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

  /* Checkout Complete Palette */
  --checkout-complete-max-width: 760px;
  --checkout-complete-border-radius: 18px;
  --checkout-complete-surface: #ffffff;
  --checkout-complete-surface-alt: #f8fafc;
  --checkout-complete-border: rgba(15, 23, 42, 0.08);
  --checkout-complete-success: #16a34a;
  --checkout-complete-pending: #2563eb;
  --checkout-complete-error: #dc2626;
}

/* -------------------------------------------------------------------------- */
/* Base Styles                                                                 */
/* -------------------------------------------------------------------------- */

.checkout-hero,
.checkout-body,
.checkout-section,
.checkout-summary,
.checkout-social-proof,
.checkout-testimonial-mini,
.checkout-trust-badges,
.checkout-support-card {
  font-family: var(--font-family-sans);
}

.checkout-page .site-header {
  display: none !important;
}

.checkout-page #page-shell,
.checkout-page #page-content,
body.checkout-page {
  padding-top: 0 !important;
}

body.checkout-page {
  background: var(--dark-bg, #0f172a);
}

.checkout-alert[hidden],
.checkout-success[hidden],
.checkout-complete__loading[hidden],
.checkout-complete__error[hidden],
.checkout-complete__content[hidden] {
  display: none !important;
}

/* -------------------------------------------------------------------------- */
/* Hero Section - Dark & Elegant                                               */
/* -------------------------------------------------------------------------- */

.checkout-hero {
  position: relative;
  overflow: hidden;
  color: var(--text-primary);
  background: var(--checkout-hero-gradient);
  padding: clamp(2.5rem, 6vw, 4rem) 0;
  isolation: isolate;
  border-bottom: 1px solid var(--dark-border);
}

.checkout-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(77, 184, 255, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(77, 184, 255, 0.08) 0%, transparent 55%);
  pointer-events: none;
  animation: hero-ambient 12s ease-in-out infinite alternate;
}

.checkout-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(15, 17, 23, 0.3) 100%);
  pointer-events: none;
}

@keyframes hero-ambient {
  0% {
    opacity: 0.6;
    transform: scale(1);
  }
  100% {
    opacity: 0.9;
    transform: scale(1.05);
  }
}

.checkout-hero__shell {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, 2rem);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.checkout-hero__back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-tertiary);
  text-decoration: none;
  transition: transform var(--transition-standard), color var(--transition-standard);
  width: fit-content;
  padding: 0.5rem 0;
}

.checkout-hero__back:hover,
.checkout-hero__back:focus-visible {
  color: var(--checkout-primary);
  transform: translateX(-4px);
}

.checkout-hero__headline {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1.5rem, 4vw, 3rem);
  justify-content: space-between;
  align-items: flex-start;
}

.checkout-hero__copy {
  display: grid;
  gap: var(--space-md);
  min-width: min(100%, 400px);
  max-width: 38rem;
}

.checkout-hero__eyebrow {
  display: inline-flex;
  gap: var(--space-sm);
  align-items: center;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0;
  color: var(--text-tertiary);
}

.checkout-hero__brand {
  font-weight: 700;
  color: var(--checkout-primary);
}

.checkout-hero__separator {
  opacity: 0.5;
  font-weight: 700;
}

.checkout-hero__title {
  margin: 0;
  font-size: clamp(2.25rem, 3vw + 1rem, 3.5rem);
  font-weight: 800;
  line-height: 1.12;
  background: linear-gradient(135deg, #ffffff 0%, var(--checkout-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.checkout-hero__features {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.checkout-hero__feature {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
  transition: transform var(--transition-fast);
}

.checkout-hero__feature:hover {
  transform: translateX(2px);
}

.checkout-hero__feature svg {
  flex-shrink: 0;
  color: var(--checkout-success);
  filter: drop-shadow(0 0 4px var(--checkout-success-glow));
}

.checkout-hero__trust-bar {
  display: grid;
  gap: var(--space-md);
  padding: clamp(1.25rem, 3vw, 1.75rem);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--dark-border);
  width: 100%;
  box-shadow: var(--shadow-md);
}

.checkout-hero__trust-item {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  text-align: center;
  padding: 0.75rem;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.03);
  transition: background var(--transition-standard), transform var(--transition-standard);
}

.checkout-hero__trust-item:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}

.checkout-hero__trust-value {
  font-size: clamp(1.75rem, 1.5rem + 1vw, 2.25rem);
  font-weight: 800;
  color: var(--checkout-primary);
  text-shadow: 0 0 20px rgba(77, 184, 255, 0.4);
}

.checkout-hero__trust-label {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  letter-spacing: 0.02em;
}

/* -------------------------------------------------------------------------- */
/* Main Layout - Dark Theme                                                     */
/* -------------------------------------------------------------------------- */

.checkout-body {
  background: var(--dark-bg);
  padding: clamp(2.5rem, 6vw, 4.25rem) 0 clamp(3rem, 6vw, 5rem);
  min-height: 100vh;
}

.checkout-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, 2rem);
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
  grid-template-columns: 1fr minmax(320px, 400px);
  align-items: flex-start;
}

.checkout-main {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  min-width: 0; /* Prevent overflow */
}

.checkout-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.checkout-sidebar {
  position: sticky;
  top: calc(90px + 1.25rem);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  min-width: 0; /* Prevent overflow */
}

/* -------------------------------------------------------------------------- */
/* Progress Indicator - Modern Dark                                             */
/* -------------------------------------------------------------------------- */

.checkout-progress {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border-radius: var(--radius-2xl);
  background: var(--light-surface);
  box-shadow: var(--light-shadow);
  border: 1px solid var(--light-border);
  max-width: 100%;
}

.checkout-progress__step {
  position: relative;
  flex: 1 1 0;
  display: grid;
  justify-items: center;
  gap: var(--space-xs);
  color: var(--light-text-muted);
  text-align: center;
  padding: 0 var(--space-xs);
  min-width: 0; /* Prevent overflow */
}

.checkout-progress__step::after {
  content: "";
  position: absolute;
  top: 24px;
  left: calc(50% + 28px);
  width: calc(100% - 56px);
  height: 2px;
  background: var(--light-border);
  opacity: 0.8;
  z-index: 0;
}

.checkout-progress__step:last-of-type::after {
  display: none;
}

.checkout-progress__number {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-primary);
  background: var(--dark-surface);
  border: 2px solid rgba(148, 163, 184, 0.35);
  box-shadow: 0 6px 14px rgba(15, 23, 42, 0.32);
  transition: all var(--transition-standard);
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

.checkout-progress__label {
  font-size: 0.85rem;
  font-weight: 600;
  transition: color var(--transition-standard);
  word-break: break-word;
}

.checkout-progress__step.is-active .checkout-progress__number {
  background: #0f172a;
  color: #f8fafc;
  border-color: rgba(99, 91, 255, 0.8);
  box-shadow: 0 0 0 4px rgba(99, 91, 255, 0.22);
  transform: translateY(-2px);
}

.checkout-progress__step.is-active .checkout-progress__label {
  color: var(--light-text-primary);
}

.checkout-progress__step.is-complete .checkout-progress__number {
  background: #0f172a;
  color: #bbf7d0;
  border-color: rgba(16, 185, 129, 0.65);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.28);
}

.checkout-progress__step.is-complete .checkout-progress__label {
  color: var(--checkout-success);
}

.checkout-progress__step.is-complete::after {
  background: rgba(16, 185, 129, 0.4);
  opacity: 1;
}

/* -------------------------------------------------------------------------- */
/* Sections - Elevated Light Modules                                           */
/* -------------------------------------------------------------------------- */

.checkout-section {
  --text-primary: var(--light-text-primary);
  --text-secondary: var(--light-text-secondary);
  --text-tertiary: var(--light-text-tertiary);
  --text-muted: var(--light-text-muted);
  --section-padding: clamp(1.75rem, 3vw, 2.5rem);
  background: var(--light-surface);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--light-border);
  box-shadow: var(--light-shadow);
  padding: var(--section-padding);
  display: grid;
  gap: var(--space-lg);
  transition: all var(--transition-standard);
  position: relative;
  overflow: hidden;
  max-width: 100%;
  width: 100%;
  color: var(--text-secondary);
}

.checkout-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, rgba(99, 91, 255, 0.4), transparent);
  opacity: 0;
  transition: opacity var(--transition-standard);
}

.checkout-section:hover {
  border-color: var(--light-border-strong);
  box-shadow: 0 28px 50px rgba(15, 23, 42, 0.12);
  transform: translateY(-2px);
}

.checkout-section:hover::before {
  opacity: 0.35;
}

.checkout-section__header {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}


.checkout-section__title {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin: 0;
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 700;
  color: var(--text-primary);
  flex-wrap: wrap;
}

.checkout-section__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--light-accent) 0%, var(--light-accent-strong) 100%);
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
  box-shadow: 0 14px 26px rgba(67, 56, 202, 0.25);
  flex-shrink: 0;
}

.checkout-section__subtitle {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-tertiary);
  line-height: 1.5;
}

.checkout-section[data-section="payment"] {
  --payment-horizontal-offset: var(--section-padding);
}

.checkout-section[data-section="payment"] .checkout-payment-wrapper {
  align-items: stretch;
}

.checkout-section[data-section="payment"] .checkout-payment-element {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  margin-inline: calc(-1 * var(--payment-horizontal-offset));
  width: calc(100% + var(--payment-horizontal-offset) * 2);
  padding: 0;
}

.checkout-section[data-section="payment"] .checkout-payment-element > * {
  flex: 1 1 auto;
}

/* -------------------------------------------------------------------------- */
/* Product Selector - Premium Dark Cards                                        */
/* -------------------------------------------------------------------------- */

.checkout-product-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  width: 100%;
}

.checkout-product-card {
  position: relative;
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  width: 100%;
  max-width: 100%;
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--light-border);
  background: var(--light-surface);
  box-shadow: 0 16px 42px rgba(15, 23, 42, 0.08);
  color: var(--text-primary);
  cursor: pointer;
  text-align: left;
  appearance: none;
  transition: all var(--transition-standard);
  overflow: hidden;
  box-sizing: border-box;
}

.checkout-product-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(15, 23, 42, 0.08), transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-standard);
  pointer-events: none;
}

.checkout-product-card:focus-visible {
  outline: none;
  border-color: var(--checkout-primary);
  box-shadow: var(--shadow-glow-strong);
}

.checkout-product-card:hover {
  transform: translateY(-3px);
  border-color: var(--light-border-strong);
  box-shadow: 0 26px 56px rgba(15, 23, 42, 0.12);
}

.checkout-product-card:hover::before {
  opacity: 1;
}

.checkout-product-card.is-selected {
  border-color: var(--dark-surface);
  background: var(--dark-surface);
  box-shadow: 0 32px 68px rgba(15, 23, 42, 0.24);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.92);
  --text-tertiary: rgba(255, 255, 255, 0.75);
  --text-muted: rgba(255, 255, 255, 0.6);
}

.checkout-product-card.is-selected::before {
  opacity: 1;
}

.checkout-product-card__check {
  display: inline-flex;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  border: 2px solid var(--light-border);
  background: var(--light-surface-subtle);
  align-items: center;
  justify-content: center;
  color: var(--light-text-muted);
  transition: all var(--transition-standard);
  flex-shrink: 0;
}

.checkout-product-card__check circle {
  stroke: currentColor;
}

.checkout-product-card__checkmark {
  opacity: 0;
  transform: scale(0.7);
  transform-origin: center;
  transition: all var(--transition-standard);
}

.checkout-product-card.is-selected .checkout-product-card__check {
  background: var(--dark-surface);
  border-color: var(--dark-surface);
  color: #fff;
  box-shadow: 0 0 0 4px rgba(15, 17, 23, 0.1);
}

.checkout-product-card.is-selected .checkout-product-card__checkmark {
  opacity: 1;
  transform: scale(1);
}

.checkout-product-card--gold {
  background: var(--light-surface);
  border: 2px solid rgba(234, 179, 8, 0.55);
  box-shadow: 0 0 0 3px rgba(253, 224, 71, 0.2), 0 24px 48px rgba(161, 98, 7, 0.12);
  color: var(--text-primary);
}

.checkout-product-card--gold::before {
  background: radial-gradient(circle at top right, rgba(253, 224, 71, 0.25), transparent 70%);
}

.checkout-product-card--gold:hover {
  border-color: rgba(252, 211, 77, 0.8);
  box-shadow: 0 0 0 3px rgba(253, 224, 71, 0.35), 0 30px 60px rgba(161, 98, 7, 0.18);
}

.checkout-product-card--gold.is-selected {
  border-color: rgba(202, 138, 4, 0.9);
  background: var(--dark-surface);
  box-shadow: 0 0 0 4px rgba(202, 138, 4, 0.28), 0 36px 74px rgba(202, 138, 4, 0.24);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.92);
  --text-tertiary: rgba(255, 255, 255, 0.75);
  --text-muted: rgba(255, 255, 255, 0.6);
}

.checkout-product-card--gold .checkout-product-card__check {
  border-color: rgba(202, 138, 4, 0.5);
  background: var(--light-surface);
  color: rgba(202, 138, 4, 0.8);
  box-shadow: inset 0 0 0 1px rgba(202, 138, 4, 0.2);
}

.checkout-product-card--gold.is-selected .checkout-product-card__check {
  border-color: rgba(202, 138, 4, 0.9);
  color: #fff;
  background: #1f2937;
  box-shadow: 0 0 0 4px rgba(202, 138, 4, 0.2);
}

.checkout-product-card--gold .checkout-product-card__checkmark {
  stroke: currentColor;
}

.checkout-product-card__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  min-width: 0; /* Prevent overflow */
}

.checkout-product-card__header {
  display: flex;
  justify-content: space-between;
  gap: var(--space-md);
  align-items: flex-start;
  flex-wrap: wrap;
}

.checkout-product-card__title-group {
  display: grid;
  gap: var(--space-xs);
  flex: 1;
  min-width: 0;
}

.checkout-product-card__title {
  margin: 0;
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  font-weight: 700;
  color: var(--text-primary);
  word-break: break-word;
}

.checkout-product-card__subtitle {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-tertiary);
}

.checkout-product-card__badge {
  align-self: flex-start;
  padding: 0.4rem 0.95rem;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
  background: linear-gradient(135deg, var(--checkout-warning) 0%, #f97316 100%);
  box-shadow: 0 4px 12px rgba(251, 191, 36, 0.3);
  flex-shrink: 0;
  white-space: nowrap;
}

.checkout-product-card__pricing {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: baseline;
}

.checkout-product-card__price-main {
  display: inline-flex;
  flex-direction: column;
  gap: var(--space-2xs);
}

.checkout-product-card__price {
  margin: 0;
  font-size: clamp(1.75rem, 2.2vw, 2.5rem);
  font-weight: 800;
  color: var(--text-primary);
  text-shadow: 0 12px 24px rgba(99, 91, 255, 0.16);
  line-height: 1;
}

.checkout-product-card__unit {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

.checkout-product-card__savings {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--checkout-success);
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  white-space: nowrap;
}

.checkout-product-card__savings svg {
  filter: drop-shadow(0 0 4px var(--checkout-success-glow));
  flex-shrink: 0;
}

.checkout-product-card--gold .checkout-product-card__price {
  color: var(--text-primary);
  text-shadow: none;
}

.checkout-product-card--gold .checkout-product-card__badge {
  color: #fff;
  background: linear-gradient(135deg, var(--checkout-warning) 0%, #f97316 100%);
  border: none;
  box-shadow: 0 4px 12px rgba(251, 191, 36, 0.3);
}

/* -------------------------------------------------------------------------- */
/* Trust Badges - Subtle Dark Theme                                             */
/* -------------------------------------------------------------------------- */

.checkout-trust-micro {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  padding: var(--space-lg);
  border-radius: var(--radius-xl);
  border: 1px solid var(--dark-border-subtle);
  background: var(--dark-surface-elevated);
  color: rgba(255, 255, 255, 0.78);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.88);
  --text-tertiary: rgba(255, 255, 255, 0.72);
  --text-muted: rgba(255, 255, 255, 0.6);
}

.checkout-trust-micro__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.8rem;
  color: var(--text-tertiary);
}

.checkout-trust-micro__item svg {
  color: var(--checkout-primary);
  opacity: 0.8;
}

/* -------------------------------------------------------------------------- */
/* Form Fields - Modern Dark Inputs                                             */
/* -------------------------------------------------------------------------- */

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr));
  gap: var(--space-lg);
  width: 100%;
}

.form-grid--contact {
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
}

.form-field {
  display: grid;
  gap: var(--space-xs);
  min-width: 0; /* Prevent overflow */
}

.form-field--full {
  grid-column: 1 / -1;
}

.form-field__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  flex-wrap: wrap;
}

.form-field__label-text {
  display: inline-flex;
}

.form-field__required {
  color: var(--checkout-error);
  font-weight: 700;
}

.form-field__optional {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 500;
}

.form-field__input-wrapper {
  position: relative;
  width: 100%;
}

.form-field__icon {
  position: absolute;
  inset-block: 0;
  left: 1rem;
  display: inline-flex;
  align-items: center;
  color: var(--text-muted);
  pointer-events: none;
  transition: color var(--transition-standard);
  z-index: 1;
}

.form-field input:focus-visible + .form-field__icon,
.form-field__input-wrapper:has(input:focus-visible) .form-field__icon {
  color: var(--checkout-primary);
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  max-width: 100%;
  padding: 0.95rem 1.1rem;
  border-radius: var(--radius-lg);
  border: 2px solid var(--dark-border);
  background: var(--dark-surface-elevated);
  font: 500 1rem / 1.2 var(--font-family-sans);
  color: var(--text-primary);
  transition: all var(--transition-standard);
  box-sizing: border-box;
}

.form-field__input-wrapper input,
.form-field__input-wrapper select {
  padding-left: 2.85rem;
}

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

.form-field input:focus-visible,
.form-field select:focus-visible,
.form-field textarea:focus-visible {
  outline: none;
  border-color: var(--checkout-primary);
  box-shadow: 0 0 0 4px rgba(77, 184, 255, 0.2);
  background: var(--dark-surface-hover);
}

.form-field input:valid:not(:placeholder-shown) {
  border-color: var(--checkout-success);
}

.form-field input:invalid:not(:placeholder-shown) {
  border-color: var(--checkout-error);
}

.form-field__hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.form-field__error {
  display: none;
  font-size: 0.75rem;
  color: var(--checkout-error);
  font-weight: 600;
}

.checkout-payment-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  width: 100%;
}

.checkout-payment-element {
  display: block;
  min-height: 72px;
  padding: 0;
  border-radius: var(--radius-lg);
  border: none;
  background: transparent;
  box-shadow: none;
  transition: all var(--transition-standard);
  width: 100%;
  box-sizing: border-box;
}

.checkout-payment-element > * {
  width: 100% !important;
  max-width: none !important;
  margin: 0 !important;
}

.checkout-payment-element .EmbeddedCheckout,
.checkout-payment-element [data-testid="embedded-checkout-frame"] {
  width: 100% !important;
  max-width: none !important;
  margin: 0 !important;
}

.checkout-payment-element .StripeElement,
.checkout-payment-element .StripeElement--focus,
.checkout-payment-element .StripeElement--invalid,
.checkout-payment-element .StripeElement--complete {
  display: block;
  width: 100%;
  min-width: 0;
  padding: 0;
  min-height: 48px;
  font-size: 1rem;
  line-height: 1.3;
  background: transparent;
  color: var(--text-primary);
}

.checkout-payment-element iframe {
  width: 100% !important;
  min-width: 100% !important;
  display: block;
  margin: 0 !important;
}

.checkout-payment-element .StripeElement--focus {
  color: var(--text-primary);
}

.checkout-payment-element:focus-within {
  box-shadow: 0 0 0 4px rgba(99, 91, 255, 0.12), 0 18px 36px rgba(99, 91, 255, 0.16);
}

.checkout-payment-security {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--dark-surface-elevated);
  border: 1px solid var(--dark-border-subtle);
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.78);
  flex-wrap: wrap;
}

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

.checkout-payment-logos {
  display: grid;
  gap: var(--space-sm);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--dark-border-subtle);
  background: var(--dark-surface-elevated);
  width: 100%;
  box-sizing: border-box;
}

.checkout-payment-logos__label {
  font-size: 0.75rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.68);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.checkout-payment-logos__items {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  justify-content: flex-start;
}

.checkout-payment-logos svg {
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.4));
  border-radius: 6px;
  opacity: 0.9;
  transition: all var(--transition-standard);
}

.checkout-payment-logos svg:hover {
  opacity: 1;
  transform: translateY(-2px);
}

.checkout-guarantee {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
  padding: clamp(1.5rem, 4vw, 2.25rem);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--dark-border);
  background: var(--dark-surface);
  color: rgba(226, 232, 240, 0.9);
  box-shadow: var(--shadow-md);
}

.checkout-guarantee--standalone {
  width: 100%;
}

.checkout-guarantee svg {
  flex-shrink: 0;
  filter: drop-shadow(0 0 10px rgba(16, 185, 129, 0.3));
}


.checkout-guarantee__content {
  display: grid;
  gap: var(--space-xs);
}

.checkout-guarantee__title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  color: #f8fafc;
}

.checkout-guarantee__text {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(226, 232, 240, 0.75);
  line-height: 1.6;
}

.checkout-alert,
.checkout-success {
  margin: 0;
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  border: 1px solid;
}

.checkout-alert {
  color: #991b1b;
  background: #fef2f2;
  border-color: #fecaca;
}

.checkout-success {
  color: #166534;
  background: #f0fdf4;
  border-color: #bbf7d0;
}

/* -------------------------------------------------------------------------- */
/* Sidebar - Order Summary & Trust Elements                                     */
/* -------------------------------------------------------------------------- */

.checkout-summary {
  display: grid;
  gap: var(--space-lg);
  padding: clamp(1.75rem, 4vw, 2.25rem);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--dark-border);
  background: var(--dark-surface);
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
  width: 100%;
  box-sizing: border-box;
}

.checkout-summary::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--checkout-accent-gradient);
  opacity: 0.8;
}

.checkout-summary__title {
  margin: 0;
  padding-bottom: var(--space-md);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  border-bottom: 1px solid var(--dark-border);
}

.checkout-summary__product {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  background: var(--dark-surface-elevated);
  border: 1px solid var(--dark-border-subtle);
}

.checkout-summary__product-image {
  width: 90px;
  height: 90px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(77, 184, 255, 0.1) 0%, var(--dark-bg) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 1px solid var(--dark-border);
  flex-shrink: 0;
  overflow: hidden;
  box-sizing: border-box;
}

.checkout-summary__product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: drop-shadow(0 4px 12px rgba(77, 184, 255, 0.25));
}

.checkout-summary__product-details {
  display: grid;
  gap: var(--space-2xs);
  flex: 1;
  min-width: 0;
}

.checkout-summary__product-name {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.checkout-summary__product-desc {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-tertiary);
}

.checkout-summary__breakdown {
  display: grid;
  gap: var(--space-md);
  margin: 0;
  padding: var(--space-lg) 0;
  border-block: 1px solid var(--dark-border);
}

.checkout-summary__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.95rem;
  color: var(--text-tertiary);
  transition: color var(--transition-fast);
  gap: var(--space-md);
}

.checkout-summary__row:hover {
  color: var(--text-secondary);
}

.checkout-summary__row dt {
  font-weight: 500;
}

.checkout-summary__row dd {
  font-weight: 700;
  margin: 0;
}

.checkout-summary__row--total {
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.35rem;
  padding-top: var(--space-md);
  border-top: 1px solid var(--dark-border);
  margin-top: var(--space-xs);
}

.checkout-summary__row--total dd {
  color: var(--checkout-primary);
  text-shadow: 0 0 20px rgba(77, 184, 255, 0.3);
  font-size: 1.5rem;
}

.checkout-summary__shipping {
  font-weight: 700;
  color: var(--checkout-success) !important;
}

.checkout-summary__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  background: var(--dark-surface-elevated);
}

.checkout-summary__feature {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.8rem;
  color: var(--text-tertiary);
  transition: transform var(--transition-fast);
}

.checkout-summary__feature:hover {
  transform: translateX(2px);
}

.checkout-summary__feature svg {
  color: var(--checkout-success);
  flex-shrink: 0;
}

.checkout-social-proof {
  position: relative;
  display: flex;
  gap: var(--space-md);
  align-items: center;
  padding: var(--space-lg);
  border-radius: var(--radius-2xl);
  border: 1px solid rgba(251, 191, 36, 0.3);
  background: linear-gradient(140deg, rgba(251, 191, 36, 0.1) 0%, rgba(245, 158, 11, 0.08) 100%);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  width: 100%;
  box-sizing: border-box;
}

.checkout-social-proof__indicator {
  position: relative;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background: rgba(251, 191, 36, 0.2);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.checkout-social-proof__pulse {
  position: absolute;
  inset: -8px;
  border-radius: var(--radius-full);
  background: rgba(251, 191, 36, 0.4);
  animation: checkout-pulse 2.4s infinite;
}

.checkout-social-proof__icon {
  position: relative;
  font-size: 1.3rem;
  filter: drop-shadow(0 2px 4px rgba(251, 191, 36, 0.4));
}

.checkout-social-proof__content {
  display: grid;
  gap: var(--space-2xs);
  flex: 1;
  min-width: 0;
}

.checkout-social-proof__text {
  margin: 0;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.4;
}

.checkout-social-proof__text strong {
  color: var(--checkout-warning);
}

.checkout-social-proof__subtext {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-tertiary);
}

.checkout-social-proof__subtext strong {
  color: var(--checkout-warning);
  font-weight: 700;
}

.checkout-testimonial-mini {
  display: grid;
  gap: var(--space-md);
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--dark-border);
  background: var(--dark-surface);
  box-shadow: var(--shadow-md);
  width: 100%;
  box-sizing: border-box;
}

.checkout-testimonial-mini__stars {
  color: var(--checkout-warning);
  letter-spacing: 0.2em;
  font-size: 1rem;
  filter: drop-shadow(0 0 8px rgba(251, 191, 36, 0.3));
}

.checkout-testimonial-mini__quote {
  margin: 0;
  font-size: 0.9rem;
  font-style: italic;
  color: var(--text-secondary);
  line-height: 1.6;
}

.checkout-testimonial-mini__author {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  font-style: normal;
}

.checkout-testimonial-mini__author strong {
  color: var(--text-primary);
  font-weight: 600;
}

.checkout-trust-badges {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--dark-surface-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid var(--dark-border);
  display: grid;
  gap: var(--space-md);
  width: 100%;
  box-sizing: border-box;
}

.checkout-trust-badges__title {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  text-align: center;
}

.checkout-trust-badges__grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.checkout-trust-badge {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  background: var(--dark-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--dark-border-subtle);
  transition: all var(--transition-fast);
}

.checkout-trust-badge:hover {
  background: var(--dark-surface-hover);
  border-color: var(--dark-border);
}

.checkout-trust-badge__icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(77, 184, 255, 0.12);
  color: var(--checkout-primary);
}

.checkout-trust-badge__content {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  min-width: 0;
}

.checkout-trust-badge__title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.checkout-trust-badge__subtitle {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.checkout-support-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-md);
  padding: var(--space-lg);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--dark-border-strong);
  background: linear-gradient(140deg, rgba(77, 184, 255, 0.08) 0%, var(--dark-surface) 100%);
  box-shadow: var(--shadow-md);
  width: 100%;
  box-sizing: border-box;
}

.checkout-support-card__icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  display: grid;
  place-items: center;
  background: rgba(77, 184, 255, 0.15);
  color: var(--checkout-primary);
  flex-shrink: 0;
  box-shadow: 0 0 20px rgba(77, 184, 255, 0.3);
}

.checkout-support-card__content {
  display: grid;
  gap: var(--space-xs);
  min-width: 0;
}

.checkout-support-card__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.checkout-support-card__text {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-tertiary);
  line-height: 1.5;
}

.checkout-support-card__link {
  color: var(--checkout-primary);
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  word-break: break-word;
}

.checkout-support-card__link:hover,
.checkout-support-card__link:focus-visible {
  color: var(--checkout-primary-hover);
  text-decoration: underline;
}

/* -------------------------------------------------------------------------- */
/* Checkout Complete                                                           */
/* -------------------------------------------------------------------------- */

.checkout-complete {
  padding: 3.5rem 1.5rem 5rem;
  background: linear-gradient(180deg, #f1f5f9 0%, #ffffff 100%);
}

.checkout-complete__shell {
  margin: 0 auto;
  max-width: var(--checkout-complete-max-width);
  display: grid;
  gap: 2rem;
}

.checkout-complete__header {
  background: var(--checkout-complete-surface);
  border-radius: var(--checkout-complete-border-radius);
  padding: 2.5rem 2.25rem;
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.08);
  border: 1px solid var(--checkout-complete-border);
  display: grid;
  gap: 1.25rem;
}

.checkout-complete__status {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.checkout-complete__status-icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: var(--radius-full);
  display: grid;
  place-items: center;
  color: #ffffff;
  flex-shrink: 0;
  font-size: 1.5rem;
}

.checkout-complete__status-icon--success {
  background: var(--checkout-complete-success);
}

.checkout-complete__status-icon--pending {
  background: var(--checkout-complete-pending);
}

.checkout-complete__status-icon--error {
  background: var(--checkout-complete-error);
}

.checkout-complete__title {
  margin: 0;
  font-size: clamp(1.75rem, 2vw + 1rem, 2.5rem);
  font-weight: 700;
  color: var(--light-text-primary);
}

.checkout-complete__subtitle {
  margin: 0;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--light-text-muted);
}

.checkout-complete__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.checkout-complete__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.35rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  cursor: pointer;
}

.checkout-complete__btn--primary {
  background: #0f172a;
  color: #ffffff;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.12);
}

.checkout-complete__btn--secondary {
  background: transparent;
  color: #0f172a;
  border-color: rgba(15, 23, 42, 0.2);
}

.checkout-complete__btn:hover,
.checkout-complete__btn:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 14px 32px rgba(15, 23, 42, 0.12);
}

.checkout-complete__grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.checkout-complete__card {
  background: var(--checkout-complete-surface);
  border-radius: var(--checkout-complete-border-radius);
  border: 1px solid var(--checkout-complete-border);
  padding: 2rem;
  display: grid;
  gap: 1.5rem;
  box-shadow: 0 18px 36px rgba(15, 23, 42, 0.06);
}

.checkout-complete__card-title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--light-text-primary);
}

.checkout-complete__details {
  display: grid;
  gap: 0.75rem;
}

.checkout-complete__detail {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.95rem;
  color: rgba(15, 23, 42, 0.85);
}

.checkout-complete__detail-label {
  font-weight: 500;
}

.checkout-complete__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  background: rgba(37, 99, 235, 0.08);
  color: #1d4ed8;
}

.checkout-complete__support {
  background: var(--checkout-complete-surface-alt);
  border-radius: var(--checkout-complete-border-radius);
  padding: 1.5rem;
  border: 1px dashed rgba(37, 99, 235, 0.3);
  display: grid;
  gap: 0.75rem;
}

.checkout-complete__support h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--light-text-primary);
}

.checkout-complete__support p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--light-text-muted);
}

.checkout-complete__support a {
  color: #1d4ed8;
  font-weight: 600;
  text-decoration: none;
}

.checkout-complete__support a:hover,
.checkout-complete__support a:focus-visible {
  text-decoration: underline;
}

.checkout-complete__loading {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: rgba(15, 23, 42, 0.7);
  font-size: 0.95rem;
}

.checkout-complete__spinner {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: var(--radius-full);
  border: 3px solid rgba(15, 23, 42, 0.16);
  border-top-color: var(--checkout-complete-pending);
  animation: checkout-complete-spin 1s linear infinite;
}

.checkout-complete__error {
  background: rgba(220, 38, 38, 0.08);
  color: #991b1b;
  border: 1px solid rgba(220, 38, 38, 0.15);
  padding: 1rem 1.25rem;
  border-radius: 14px;
  font-size: 0.95rem;
}

.checkout-complete__status-note {
  margin: 0;
  font-size: 0.95rem;
  color: rgba(15, 23, 42, 0.65);
}

.checkout-complete__detail-value {
  font-weight: 600;
  color: var(--light-text-secondary);
}

.checkout-complete__badge--success {
  background: rgba(22, 163, 74, 0.12);
  color: var(--checkout-complete-success);
}

.checkout-complete__badge--pending {
  background: rgba(37, 99, 235, 0.12);
  color: var(--checkout-complete-pending);
}

.checkout-complete__badge--error {
  background: rgba(220, 38, 38, 0.12);
  color: var(--checkout-complete-error);
}

.checkout-complete__actions .checkout-complete__btn:first-child {
  box-shadow: 0 14px 32px rgba(15, 23, 42, 0.18);
}

.checkout-complete__actions .checkout-complete__btn:first-child:hover,
.checkout-complete__actions .checkout-complete__btn:first-child:focus-visible {
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.2);
}

.checkout-complete__body {
  display: grid;
  gap: 1.75rem;
}

.checkout-complete__section {
  display: grid;
  gap: 1rem;
}

.checkout-complete__section-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--light-text-secondary);
  letter-spacing: 0.01em;
}

.checkout-complete__divider {
  height: 1px;
  background: rgba(15, 23, 42, 0.08);
  margin: 0.5rem 0;
}

.checkout-complete__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.checkout-complete__list-item {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.95rem;
  color: rgba(15, 23, 42, 0.75);
}

.checkout-complete__list-label {
  font-weight: 500;
}

.checkout-complete__list-value {
  font-weight: 600;
  color: var(--light-text-primary);
}

.checkout-complete__footnote {
  font-size: 0.85rem;
  color: rgba(15, 23, 42, 0.6);
  margin: 0;
}

.checkout-complete__footnote a {
  color: #1d4ed8;
  font-weight: 600;
}

.checkout-complete__footnote a:hover,
.checkout-complete__footnote a:focus-visible {
  text-decoration: underline;
}

.checkout-complete__status--success .checkout-complete__status-icon {
  background: var(--checkout-complete-success);
}

.checkout-complete__status--pending .checkout-complete__status-icon {
  background: var(--checkout-complete-pending);
}

.checkout-complete__status--error .checkout-complete__status-icon {
  background: var(--checkout-complete-error);
}

.checkout-complete__status--success .checkout-complete__badge,
.checkout-complete__status--success .checkout-complete__detail-value,
.checkout-complete__status--success .checkout-complete__footnote {
  color: rgba(22, 163, 74, 0.9);
}

.checkout-complete__status--pending .checkout-complete__badge,
.checkout-complete__status--pending .checkout-complete__detail-value,
.checkout-complete__status--pending .checkout-complete__footnote {
  color: rgba(37, 99, 235, 0.9);
}

.checkout-complete__status--error .checkout-complete__badge,
.checkout-complete__status--error .checkout-complete__detail-value,
.checkout-complete__status--error .checkout-complete__footnote {
  color: rgba(220, 38, 38, 0.9);
}

.checkout-complete__status--error .checkout-complete__badge {
  background: rgba(220, 38, 38, 0.12);
}

.checkout-complete__status--success .checkout-complete__badge {
  background: rgba(22, 163, 74, 0.12);
}

.checkout-complete__status--pending .checkout-complete__badge {
  background: rgba(37, 99, 235, 0.12);
}

.checkout-complete__card--highlight {
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: 0 18px 40px rgba(37, 99, 235, 0.08);
}

.checkout-complete__card--highlight .checkout-complete__card-title {
  color: #1d4ed8;
}

.checkout-complete__card--highlight .checkout-complete__list-value {
  color: #1d4ed8;
}

.checkout-complete__card--stacked {
  gap: 1rem;
}

.checkout-complete__card--stacked .checkout-complete__list-item {
  align-items: center;
}

.checkout-complete__card--stacked .checkout-complete__badge {
  margin-left: auto;
}

.checkout-complete__support strong {
  color: var(--light-text-secondary);
}

.checkout-complete__icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-full);
  display: grid;
  place-items: center;
  background: rgba(37, 99, 235, 0.1);
  color: #1d4ed8;
}

.checkout-complete__progress {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: rgba(37, 99, 235, 0.9);
}

.checkout-complete__progress-bar {
  position: relative;
  width: 120px;
  height: 6px;
  border-radius: var(--radius-full);
  background: rgba(37, 99, 235, 0.2);
  overflow: hidden;
}

.checkout-complete__progress-bar::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(37, 99, 235, 0.2) 0%, rgba(37, 99, 235, 0.8) 100%);
  animation: checkout-complete-progress 2s ease-in-out infinite;
}

.checkout-complete__badge svg {
  width: 1rem;
  height: 1rem;
}

@keyframes checkout-complete-progress {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

@keyframes checkout-complete-spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 768px) {
  .checkout-complete {
    padding: 2.5rem 1rem 4rem;
  }

  .checkout-complete__header {
    padding: 2rem 1.75rem;
  }

  .checkout-complete__grid {
    gap: 1.5rem;
  }
}

/* -------------------------------------------------------------------------- */
/* Animation                                                                   */
/* -------------------------------------------------------------------------- */

@keyframes checkout-pulse {
  0% {
    opacity: 0.9;
    transform: scale(0.92);
  }
  50% {
    opacity: 0.2;
    transform: scale(1.25);
  }
  100% {
    opacity: 0;
    transform: scale(1.35);
  }
}

/* -------------------------------------------------------------------------- */
/* Responsive Design - Mobile-First Approach                                    */
/* -------------------------------------------------------------------------- */

@media (min-width: 768px) {
  .checkout-hero__trust-bar {
    width: fit-content;
    min-width: 320px;
  }
}

@media (max-width: 1200px) {
  .checkout-progress__step::after {
    left: calc(50% + 22px);
  }

  .checkout-hero__trust-bar {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 1024px) {
  .checkout-container {
    grid-template-columns: 1fr;
    display: flex;
    flex-direction: column;
  }

  .checkout-main {
    order: 1;
  }

  .checkout-sidebar {
    position: static;
    order: 2;
  }

  .checkout-hero__headline {
    flex-direction: column;
  }
}

@media (max-width: 860px) {
  .checkout-progress {
    flex-direction: column;
    gap: var(--space-md);
  }

  .checkout-progress__step {
    grid-template-columns: auto 1fr;
    align-items: center;
    justify-items: start;
    text-align: left;
    padding: 0;
  }

  .checkout-progress__step::after {
    display: none;
  }

  .checkout-progress__number {
    width: 44px;
    height: 44px;
    font-size: 1rem;
  }

  .checkout-section__title {
    font-size: 1.3rem;
  }

  .checkout-section__number {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }
}

@media (max-width: 768px) {
  .checkout-hero {
    padding-bottom: clamp(2rem, 7vw, 3rem);
  }

  .checkout-product-card {
    flex-direction: row;
    gap: var(--space-md);
  }

  .checkout-product-card__check {
    align-self: flex-start;
  }

  .checkout-summary__product {
    align-items: flex-start;
  }

  .checkout-social-proof,
  .checkout-support-card {
    grid-template-columns: 1fr;
    text-align: center;
    justify-items: center;
  }

  .checkout-support-card__icon {
    margin: 0 auto;
  }

  .checkout-support-card__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .checkout-support-card__link {
    justify-content: center;
  }

  .checkout-trust-badge {
    padding: 0.625rem;
  }

  .checkout-trust-badge__icon {
    width: 32px;
    height: 32px;
  }

  .checkout-trust-badge__title {
    font-size: 0.8125rem;
  }

  .checkout-trust-badge__subtitle {
    font-size: 0.7rem;
  }
}

@media (max-width: 640px) {
  .checkout-hero__trust-bar {
    grid-template-columns: 1fr;
  }

  .checkout-hero__shell {
    padding-inline: clamp(0.75rem, 5vw, 1.5rem);
  }

  .checkout-container {
    padding-inline: clamp(0.75rem, 5vw, 1.5rem);
  }

  .form-grid,
  .form-grid--contact {
    grid-template-columns: 1fr;
  }

  .checkout-section {
    padding: clamp(1.25rem, 4vw, 1.75rem);
  }

  .checkout-product-card {
    padding: 1.25rem;
  }

  .checkout-product-card__price {
    font-size: 1.75rem;
  }
}

@media (max-width: 480px) {
  .checkout-progress {
    padding: var(--space-lg);
  }

  .checkout-hero__title {
    font-size: 2rem;
  }

  .checkout-summary {
    padding: 1.5rem;
  }

  .checkout-payment-element .StripeElement {
    min-height: 44px;
    width: 100%;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .checkout-section,
  .checkout-product-card,
  .checkout-summary {
    border-width: 2px;
  }
}

/* Dark mode - already applied but ensure browser preferences work */
@media (prefers-color-scheme: light) {
  /* Keep dark theme even if user prefers light - it's our design choice */
}

/* Print styles */
@media print {
  .checkout-hero,
  .checkout-social-proof,
  .checkout-testimonial-mini {
    display: none;
  }

  .checkout-container {
    grid-template-columns: 1fr;
  }

  .checkout-summary {
    page-break-inside: avoid;
  }
}