/* Base from your file:
   - dark background
   - centered fixed logo image
*/
body {
  background-color: #111111;
  margin: 0;
  color: #e8e8ea;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  line-height: 1.5;
}

/* Link styling matching logo branding */
a {
  color: #dc2626;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #ef4444;
  text-decoration: underline;
}

/* Readability overlay above the logo, below the content */
.overlay {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(900px 420px at 50% 25%, rgba(0, 0, 0, .25), rgba(0, 0, 0, .72) 70%),
    linear-gradient(180deg, rgba(0, 0, 0, .55), rgba(0, 0, 0, .80));
  pointer-events: none;
  z-index: 0;
}

/* Layout */
.wrap {
  position: relative;
  z-index: 1;
  max-width: 1060px;
  margin: 0 auto;
  padding: 22px 16px 0;
}

.card {
  border: 1px solid rgba(255, 255, 255, .10);
  border-radius: 18px;
  background: rgba(0, 0, 0, .40);
  padding: 18px;
  backdrop-filter: blur(2px);
}

.hero {
  margin-top: 8px;
  padding-top: 12px;
}

.logo {
  max-width: 400px;
  width: 100%;
  height: auto;
  margin: 0 auto 10px;
  display: block;
}

@media (max-width: 600px) {
  .logo {
    max-width: 280px;
  }
}

.kicker {
  letter-spacing: .12em;
  text-transform: uppercase;
  font-size: 12px;
  opacity: .75;
  margin: 0 0 10px;
}

h1 {
  margin: 0 0 10px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.1;
}

h2 {
  margin: 0 0 10px;
  font-size: 18px;
  border-left: 4px solid #0891b2;
  padding-left: 12px;
}

.no-accent h2 {
  border-left: none;
  padding-left: 0;
}

.sub {
  margin: 0 0 14px;
  max-width: 75ch;
  opacity: .92;
}

.note {
  font-size: 13px;
  opacity: .78;
}

.disclosure {
  margin-top: 14px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, .10);
  background: rgba(0, 0, 0, .35);
  font-size: 13px;
  opacity: .95;
}

/* Package Slider */
.package-slider {
  margin-top: 24px;
  border: 1px solid rgba(255, 255, 255, .10);
  border-radius: 18px;
  background: rgba(0, 0, 0, .40);
  padding: 24px;
  backdrop-filter: blur(2px);
}

.slider-title {
  text-align: center;
  margin: 0 0 20px;
  font-size: 24px;
  color: #dc2626;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  border-left: none;
  padding-left: 0;
}

.slider-arrow {
  font-size: 20px;
  color: #dc2626;
  cursor: pointer;
  user-select: none;
  opacity: 0.7;
  transition: all 0.2s ease;
}

.slider-arrow:hover {
  opacity: 1;
  transform: scale(1.15);
}

.slider-container {
  max-width: 500px;
  margin: 0 auto 24px;
}

.slider {
  -webkit-appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 5px;
  background: rgba(255, 255, 255, .15);
  outline: none;
  margin: 12px 0;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #dc2626;
  cursor: pointer;
  transition: all 0.2s ease;
}

.slider::-webkit-slider-thumb:hover {
  background: #ef4444;
  transform: scale(1.1);
}

.slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #dc2626;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}

.slider::-moz-range-thumb:hover {
  background: #ef4444;
  transform: scale(1.1);
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  font-weight: 600;
  padding: 0 4px;
}

.slider-labels span {
  opacity: .85;
  transition: all 0.2s ease;
}

.package-display {
  max-width: 600px;
  margin: 0 auto;
}

.package-card {
  background: rgba(0, 0, 0, .30);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
}

.package-card h3 {
  margin: 0 0 10px;
  font-size: 28px;
  color: #dc2626;
}

.package-card p {
  margin: 0 0 16px;
  opacity: .85;
  font-style: italic;
}

.package-items ul {
  list-style: none;
  padding: 0;
  margin: 0;
  text-align: left;
  display: inline-block;
}

@media (min-width: 600px) {
  .package-items ul {
    column-count: 2;
    column-gap: 20px;
  }
}

.package-items li {
  padding: 6px 0;
  opacity: .9;
}

.package-items li:before {
  content: "✓ ";
  color: #dc2626;
  font-weight: bold;
  margin-right: 8px;
}

.kit-instructions {
  text-align: center;
  margin: 20px 0 0;
  font-size: 14px;
  opacity: 0.85;
  font-style: italic;
}

.grid {
  margin-top: 18px;
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr 1fr;
}

@media (max-width: 920px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

/* Light section for contrast */
.light-section {
  background: #f8f9fa;
  position: relative;
  z-index: 1;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  padding: 48px 0;
}

.light-section .section-content {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 16px;
}

.selected-kit-banner {
  text-align: center;
  padding: 16px 20px;
  margin-bottom: 24px;
  background: #0891b2;
  border-radius: 12px;
  color: #ffffff;
  font-size: 18px;
  font-weight: 600;
}

.banner-label {
  opacity: 0.9;
  font-weight: 500;
  margin-right: 8px;
}

.banner-kit-name {
  font-weight: 700;
}

.light-section .grid {
  margin-top: 18px;
}

.light-section .card {
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, .08);
  color: #1a1a1a;
  backdrop-filter: none;
}

.light-section h2 {
  color: #1a1a1a;
  font-size: 22px;
  font-weight: 700;
  border-left: 4px solid #0891b2;
  padding-left: 12px;
}

.light-section .item {
  border-top-color: rgba(0, 0, 0, .08);
}

.light-section .meta {
  color: #666;
  opacity: 1;
}

.light-section .btn {
  background: #0891b2;
  border: 1px solid #0e7490;
  color: #ffffff;
}

.light-section .btn:hover {
  background: #0e7490;
  border-color: #065f73;
}

.light-section a {
  color: #0891b2;
}

.light-section a:hover {
  color: #0e7490;
}

/* Checkout button in light section */
.light-section .checkout-btn {
  background: #f59e0b;
  border: 1px solid #d97706;
  color: #ffffff;
  font-weight: 600;
}

.light-section .checkout-btn:hover {
  background: #d97706;
  border-color: #b45309;
}

/* Dark full-width section */
.dark-section {
  position: relative;
  z-index: 1;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  padding: 48px 0;
}

.dark-section .section-content {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 16px;
}

.dark-section .grid {
  margin-top: 18px;
}

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

.group-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
}

.group-grid .item {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 14px;
  height: 100%;
}

.optional-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
}

.optional-grid .item {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 14px;
  height: 100%;
}

.item {
  padding: 12px 0;
  border-top: 1px solid rgba(255, 255, 255, .08);
}

.item:first-child {
  border-top: 0;
}

.item label {
  display: inline-flex;
  gap: 10px;
  align-items: center;
}

.item input {
  transform: translateY(1px);
}

.meta {
  margin-top: 6px;
  font-size: 13px;
  opacity: .78;
}

.btn {
  display: inline-flex;
  margin-top: 10px;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid #0891b2;
  background: rgba(14, 116, 144, 0.15);
  text-decoration: none;
  font-size: 13px;
  color: #e8e8ea;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s ease;
}

.btn:hover {
  background: rgba(14, 116, 144, 0.25);
  border-color: #06b6d4;
}

/* Checkout button styling */
.checkout-btn {
  background: rgba(255, 255, 255, .10);
  border: 1px solid rgba(255, 255, 255, .25);
  font-weight: 600;
}

.checkout-btn:hover {
  background: rgba(255, 255, 255, .15);
  border-color: rgba(255, 255, 255, .40);
}

footer {
  padding-bottom: 26px;
}

.foot {
  margin: 18px 0 26px;
}

.small {
  font-size: 12.5px;
  opacity: .78;
  margin: 6px 0;
}