:root {
  --bg: #121416;
  --bg-deep: #0c0e10;
  --surface: rgba(28, 31, 34, 0.88);
  --surface-strong: #1d2023;
  --surface-soft: #26292d;
  --text: #e6e6e9;
  --muted: #bcae9f;
  --line: rgba(255, 255, 255, 0.08);
  --warm: #ffb86a;
  --warm-deep: #de8a14;
  --cool: #9accf3;
  --cool-deep: #5b9fcb;
  --danger: #ffb4ab;
  --success: #d7f4ff;
  --radius: 1.5rem;
  --split: 48%;
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: #fbf5ed;
  --bg-deep: #efe3d3;
  --surface: rgba(255, 251, 246, 0.9);
  --surface-strong: #fffaf3;
  --surface-soft: #f3e7d9;
  --text: #171210;
  --muted: #715e52;
  --line: rgba(96, 68, 43, 0.14);
  --warm: #c76d18;
  --warm-deep: #9e4c08;
  --cool: #2c84b9;
  --cool-deep: #1c648e;
  --danger: #b44a36;
  --success: #ecf8ff;
  color-scheme: light;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "Manrope", sans-serif;
  background:
    radial-gradient(circle at top, rgba(222, 138, 20, 0.12), transparent 28%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  color: var(--text);
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

[hidden] {
  display: none !important;
}

.page-shell {
  position: relative;
  overflow: clip;
}

.section {
  position: relative;
  width: min(1200px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 6rem 0;
}

.specification,
.comparison,
.checkout-section,
.standards,
.newsletter {
  content-visibility: auto;
  contain-intrinsic-size: 1000px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(22px);
  background: rgba(12, 14, 16, 0.72);
  border-bottom: 1px solid var(--line);
  transition: background 300ms ease;
}

.nav {
  width: min(1320px, calc(100% - 2rem));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  min-height: 5.75rem;
  transition: min-height 300ms ease;
}

.nav-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  position: relative;
}

.nav-group-right {
  justify-content: flex-end;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links a,
.mobile-dock a,
.text-link,
.cart-chip span:first-child {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.nav-links a,
.footer-links a,
.text-link {
  transition: color 180ms ease, opacity 180ms ease;
}

.nav-links a:hover,
.footer-links a:hover,
.text-link:hover {
  color: var(--warm);
}

.brand {
  justify-self: center;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(2rem, 3vw, 2.6rem);
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

.brand-frost {
  display: inline-block;
  margin-right: 0.02em;
  background: linear-gradient(180deg, #f7fdff 0%, #cfeeff 42%, #89cbee 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow:
    0 0 14px rgba(154, 204, 243, 0.3),
    0 0 28px rgba(154, 204, 243, 0.14);
  -webkit-text-stroke: 0.015em rgba(94, 144, 176, 0.28);
}

.brand-compact {
  display: none;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.8rem, 2.6vw, 2.2rem);
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

.icon-button {
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 184, 106, 0.14);
  border-radius: 999px;
  background: rgba(255, 184, 106, 0.04);
  color: var(--warm);
}

.menu-icon,
.menu-icon::before,
.menu-icon::after {
  display: block;
  width: 1rem;
  height: 2px;
  background: currentColor;
  border-radius: 999px;
}

.menu-icon::before,
.menu-icon::after {
  content: "";
}

.menu-icon::before {
  transform: translateY(-0.34rem);
}

.menu-icon::after {
  transform: translateY(0.22rem);
}

.nav-drawer {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  overflow: hidden;
  max-width: 0;
  opacity: 0;
  pointer-events: none;
  transform: translateX(-0.4rem);
  transition: max-width 220ms ease, opacity 180ms ease, transform 180ms ease;
}

.nav-drawer a {
  flex: 0 0 auto;
  padding: 0;
  color: inherit;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  white-space: nowrap;
}

body.is-menu-open .nav-drawer {
  max-width: 18rem;
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}

body.is-menu-open .menu-icon {
  background: transparent;
}

body.is-menu-open .menu-icon::before {
  transform: translateY(0) rotate(45deg);
}

body.is-menu-open .menu-icon::after {
  transform: translateY(-0.12rem) rotate(-45deg);
}

.cart-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.75rem 1rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
}

.cart-count {
  display: inline-grid;
  place-items: center;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 999px;
  background: rgba(255, 184, 106, 0.18);
  color: var(--warm);
  font-size: 0.72rem;
  font-weight: 800;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.75rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: inherit;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.theme-toggle:hover {
  transform: translateY(-1px);
}

.theme-toggle-dot {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--warm) 0%, var(--cool) 100%);
  box-shadow: 0 0 0 0.22rem rgba(255, 255, 255, 0.06);
}

.hero {
  min-height: calc(100svh - 5.75rem);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: center;
  gap: 4rem;
  padding-top: 4rem;
}

.hero-backdrop {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-orb {
  position: absolute;
  filter: blur(80px);
  opacity: 0.7;
}

.hero-orb-warm {
  width: 34rem;
  height: 34rem;
  left: -6rem;
  top: 4rem;
  background: radial-gradient(circle, rgba(255, 184, 106, 0.28), transparent 70%);
}

.hero-orb-cool {
  width: 28rem;
  height: 28rem;
  right: 4rem;
  bottom: 8rem;
  background: radial-gradient(circle, rgba(154, 204, 243, 0.24), transparent 68%);
}

.hero-grid {
  position: absolute;
  inset: 10% 0 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 3.8rem 3.8rem;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.65), transparent 70%);
}

.hero-copy,
.hero-visual {
  position: relative;
  z-index: 1;
}

.eyebrow {
  margin: 0 0 1.25rem;
  color: var(--warm);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.34em;
  text-transform: uppercase;
}

.eyebrow-cool {
  color: var(--cool);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: -0.04em;
}

h1 {
  max-width: 10ch;
  font-size: clamp(3.9rem, 7vw, 7rem);
  line-height: 0.92;
  text-transform: uppercase;
}

h2 {
  max-width: 14ch;
  font-size: clamp(2.4rem, 4vw, 4.75rem);
  line-height: 0.95;
  text-transform: uppercase;
}

.hero-text,
.section-text,
.feature-card p,
.comparison-copy p:last-child,
.site-footer p {
  color: rgba(230, 230, 233, 0.76);
  line-height: 1.7;
}

.hero-text {
  max-width: 35rem;
  margin: 1.5rem 0 0;
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.6rem;
  padding: 0 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  transition: transform 220ms ease, background 220ms ease, color 220ms ease, border-color 220ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: linear-gradient(135deg, #ffcf96 0%, var(--warm-deep) 100%);
  color: #261200;
  box-shadow: 0 0 45px rgba(255, 184, 106, 0.24);
}

.button-secondary {
  border-color: rgba(154, 204, 243, 0.22);
  background: rgba(154, 204, 243, 0.08);
  color: var(--cool);
}

.hero-visual {
  display: grid;
  justify-items: center;
  gap: 1.5rem;
  min-height: 38rem;
  align-content: center;
  isolation: isolate;
}

.hero-sauna-aura,
.hero-frost-field {
  position: absolute;
  pointer-events: none;
}

.hero-sauna-aura {
  inset: -10% -18% -8% 4%;
  background:
    linear-gradient(125deg, rgba(255, 166, 76, 0.06), rgba(12, 8, 6, 0.02) 48%, rgba(12, 14, 16, 0.18) 100%),
    url("sauna-image-optimized.jpg") center 46% / cover no-repeat;
  border-radius: 0;
  filter: blur(26px) saturate(1.05) brightness(0.46);
  opacity: 0.28;
  transform: none;
  z-index: 0;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, rgba(0, 0, 0, 0.82) 22%, rgba(0, 0, 0, 0.9) 74%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, rgba(0, 0, 0, 0.82) 22%, rgba(0, 0, 0, 0.9) 74%, transparent 100%);
}

.hero-sauna-aura::after {
  content: none;
}

.hero-image-frame {
  position: relative;
  width: min(42rem, 100%);
  z-index: 2;
  background: transparent;
  overflow: visible;
}

.hero-image-frame::after {
  content: none;
}

.hero-image-frame img {
  width: 100%;
  display: block;
  filter:
    contrast(1.06)
    saturate(1.02)
    drop-shadow(0 34px 80px rgba(0, 0, 0, 0.52))
    drop-shadow(0 0 36px rgba(255, 172, 88, 0.14))
    drop-shadow(0 0 26px rgba(154, 204, 243, 0.18));
}

.hero-image-glow {
  position: absolute;
  inset: 14% 22% 18%;
  border-radius: 50%;
  background: radial-gradient(circle at 54% 56%, rgba(154, 204, 243, 0.28), rgba(154, 204, 243, 0.1) 32%, transparent 68%);
  filter: blur(52px);
  z-index: 0;
}

.hero-frost-field {
  inset: 18% 8% 18% 20%;
  z-index: 1;
  background:
    radial-gradient(circle at 32% 38%, rgba(214, 240, 255, 0.82) 0 0.18rem, transparent 0.24rem),
    radial-gradient(circle at 37% 58%, rgba(214, 240, 255, 0.8) 0 0.12rem, transparent 0.2rem),
    radial-gradient(circle at 56% 34%, rgba(214, 240, 255, 0.62) 0 0.14rem, transparent 0.24rem),
    radial-gradient(circle at 68% 52%, rgba(214, 240, 255, 0.74) 0 0.18rem, transparent 0.28rem),
    radial-gradient(circle at 74% 32%, rgba(214, 240, 255, 0.56) 0 0.12rem, transparent 0.2rem),
    radial-gradient(circle at 82% 62%, rgba(214, 240, 255, 0.52) 0 0.16rem, transparent 0.24rem),
    linear-gradient(90deg, transparent 0%, rgba(154, 204, 243, 0.18) 28%, rgba(214, 240, 255, 0.14) 46%, transparent 72%);
  filter: blur(0.2px);
  opacity: 0.86;
  mix-blend-mode: screen;
  -webkit-mask-image: radial-gradient(circle at 52% 52%, rgba(0, 0, 0, 1) 24%, rgba(0, 0, 0, 0.82) 58%, transparent 94%);
  mask-image: radial-gradient(circle at 52% 52%, rgba(0, 0, 0, 1) 24%, rgba(0, 0, 0, 0.82) 58%, transparent 94%);
  animation: frostPulse 6.2s ease-in-out infinite;
}

.hero-frost-field::before,
.hero-frost-field::after {
  content: "";
  position: absolute;
  inset: 0;
  background-repeat: no-repeat;
}

.hero-frost-field::before {
  background:
    radial-gradient(circle at 22% 46%, rgba(220, 245, 255, 0.32), transparent 18%),
    radial-gradient(circle at 38% 54%, rgba(214, 240, 255, 0.24), transparent 22%),
    radial-gradient(circle at 58% 44%, rgba(214, 240, 255, 0.18), transparent 18%),
    radial-gradient(circle at 76% 48%, rgba(214, 240, 255, 0.16), transparent 22%);
  filter: blur(24px);
  animation: frostDrift 7.8s ease-in-out infinite;
}

.hero-frost-field::after {
  inset: 8% 10% 10% 0;
  background:
    linear-gradient(112deg, transparent 0 38%, rgba(219, 243, 255, 0.24) 40%, transparent 42%) 18% 36% / 4.4rem 4.4rem,
    linear-gradient(22deg, transparent 0 38%, rgba(219, 243, 255, 0.18) 40%, transparent 42%) 18% 36% / 4.4rem 4.4rem,
    linear-gradient(90deg, transparent 0 43%, rgba(219, 243, 255, 0.14) 45%, transparent 47%) 18% 36% / 4.4rem 4.4rem,
    linear-gradient(112deg, transparent 0 38%, rgba(219, 243, 255, 0.18) 40%, transparent 42%) 52% 58% / 3.6rem 3.6rem,
    linear-gradient(22deg, transparent 0 38%, rgba(219, 243, 255, 0.16) 40%, transparent 42%) 52% 58% / 3.6rem 3.6rem,
    linear-gradient(90deg, transparent 0 43%, rgba(219, 243, 255, 0.12) 45%, transparent 47%) 52% 58% / 3.6rem 3.6rem,
    linear-gradient(112deg, transparent 0 38%, rgba(219, 243, 255, 0.14) 40%, transparent 42%) 78% 28% / 3.2rem 3.2rem,
    linear-gradient(22deg, transparent 0 38%, rgba(219, 243, 255, 0.12) 40%, transparent 42%) 78% 28% / 3.2rem 3.2rem,
    linear-gradient(90deg, transparent 0 43%, rgba(219, 243, 255, 0.1) 45%, transparent 47%) 78% 28% / 3.2rem 3.2rem;
  filter: blur(0.3px);
  opacity: 0.88;
  animation: frostSpark 5.4s ease-in-out infinite;
}


.feature-index,
.comparison-label,
.footer-meta {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.26em;
  text-transform: uppercase;
}

.feature-index {
  color: rgba(230, 230, 233, 0.45);
}

.feature-card h3,
.product-meta h3,
.checkout-product-head h3,
.checkout-panel-header h3,
.checkout-success h3,
.table-card h3,
.comparison-copy h3 {
  display: block;
  margin-top: 0.45rem;
  font-size: 1.08rem;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  align-items: end;
  margin-bottom: 2.4rem;
}

.section-heading.centered {
  justify-content: center;
  text-align: center;
}

.section-text {
  max-width: 32rem;
}

.sauna-feature {
  display: grid;
  gap: 1.5rem;
}

.sauna-image-panel {
  position: relative;
  min-height: 26rem;
  border-radius: 2rem;
  overflow: hidden;
  border: 1px solid var(--line);
}

.sauna-image-panel img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.84) contrast(1.08) saturate(0.9);
}

.hero-image-frame img,
.product-image-shell img,
.checkout-product-image-shell img,
.standard-shot img,
.sauna-image-panel img {
  height: auto;
}

.sauna-image-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(12, 14, 16, 0.08), rgba(12, 14, 16, 0.55)),
    radial-gradient(circle at center, rgba(255, 184, 106, 0.12), transparent 58%);
}

.feature-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 1rem;
}

.feature-card {
  min-height: 19rem;
  padding: 1.5rem;
  border-radius: 1.8rem;
  background: linear-gradient(180deg, rgba(31, 34, 37, 0.95), rgba(18, 20, 22, 0.95));
  border: 1px solid var(--line);
}

.feature-card-large {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.85rem;
  overflow: hidden;
  background:
    radial-gradient(circle at 92% 100%, rgba(91, 159, 203, 0.16), transparent 36%),
    linear-gradient(180deg, rgba(31, 34, 37, 0.98), rgba(18, 20, 22, 0.98));
}

.feature-card-copy {
  max-width: 28rem;
}

.feature-card h3 {
  margin-top: 0.6rem;
  margin-bottom: 0.9rem;
  font-size: clamp(1.7rem, 3vw, 2.5rem);
}

.feature-meter {
  display: grid;
  gap: 0.75rem;
}

.feature-meter span {
  color: var(--cool);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.meter-track {
  height: 0.6rem;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.08);
}

.meter-fill {
  width: 92%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--cool) 0%, var(--warm) 100%);
}

.feature-meter strong {
  color: var(--text);
  font-size: 1.8rem;
}

.comparison {
  width: min(1320px, calc(100% - 2rem));
}

.comparison-slider {
  position: relative;
  min-height: 42rem;
  border-radius: 2.2rem;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: #0b0d0f;
  box-shadow: 0 26px 90px rgba(0, 0, 0, 0.4);
}

.comparison-panel {
  position: absolute;
  inset: 0;
}

.comparison-panel-cold {
  background:
    radial-gradient(circle at 62% 48%, rgba(154, 204, 243, 0.18), transparent 30%),
    linear-gradient(135deg, #032f49 0%, #0d1d27 54%, #0f1317 100%);
  clip-path: inset(0 0 0 var(--split));
}

.comparison-panel-hot {
  width: 100%;
  background:
    radial-gradient(circle at 45% 42%, rgba(255, 184, 106, 0.18), transparent 34%),
    linear-gradient(135deg, #9f1d17 0%, #582407 52%, #130c0b 100%);
  clip-path: inset(0 calc(100% - var(--split)) 0 0);
  box-shadow: inset -10px 0 30px rgba(0, 0, 0, 0.22);
}

.comparison-panel-hot::after {
  content: "";
  position: absolute;
  top: 0;
  left: calc(var(--split) - 1px);
  bottom: 0;
  width: 0.45rem;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0));
  pointer-events: none;
}

.comparison-layer {
  position: absolute;
  inset: 0;
}

.comparison-content::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 26%, rgba(0, 0, 0, 0.2)),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 9rem,
      rgba(255, 255, 255, 0.02) 9rem,
      rgba(255, 255, 255, 0.02) calc(9rem + 1px)
    );
  pointer-events: none;
}

.comparison-copy {
  position: absolute;
  top: 2rem;
  z-index: 2;
  max-width: 25rem;
  padding: 1.35rem 1.5rem;
  border-radius: 1.25rem;
  background: rgba(10, 12, 14, 0.28);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.comparison-copy-left {
  left: 2rem;
}

.comparison-copy-right {
  right: 2rem;
}

.comparison-label {
  margin-bottom: 0.5rem;
}

.comparison-copy-left .comparison-label {
  color: var(--danger);
}

.comparison-copy-right .comparison-label {
  color: var(--cool);
}

.comparison-copy h3 {
  margin-bottom: 0.5rem;
  font-size: clamp(1.35rem, 2.3vw, 2.2rem);
}

.sperm-field {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.sperm-field-cold {
  clip-path: inset(0 0 0 var(--split));
}

.sperm-field-hot {
  clip-path: inset(0 calc(100% - var(--split)) 0 0);
}

.sperm-field::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.sperm-field-hot::before {
  background:
    radial-gradient(circle at 50% 50%, rgba(255, 180, 171, 0.2), transparent 46%),
    linear-gradient(180deg, transparent, rgba(255, 62, 29, 0.15));
}

.sperm-field-cold::before {
  background:
    radial-gradient(circle at 50% 50%, rgba(215, 244, 255, 0.1), transparent 48%),
    linear-gradient(180deg, transparent, rgba(154, 204, 243, 0.08));
}

.sperm {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: calc(var(--size) * 4.15rem);
  height: calc(var(--size) * 1.55rem);
  transform-origin: center;
  will-change: transform, opacity, filter;
}

.sperm-body {
  position: absolute;
  right: 0;
  top: 50%;
  width: calc(var(--size) * 0.98rem);
  height: calc(var(--size) * 0.78rem);
  border-radius: 58% 48% 56% 46%;
  transform: translateY(-50%);
}

.sperm-body::before,
.sperm-body::after {
  content: "";
  position: absolute;
  border-radius: 999px;
}

.sperm-body::before {
  inset: 10% 15% 18% 38%;
  background: rgba(255, 255, 255, 0.34);
  filter: blur(0.5px);
}

.sperm-body::after {
  inset: 28% 48% 26% 18%;
  background: rgba(255, 255, 255, 0.16);
}

.sperm-tail {
  position: absolute;
  top: 50%;
  height: calc(var(--size) * 0.12rem);
  transform: translateY(-50%);
  transform-origin: right center;
  border-radius: 999px;
}

.sperm-tail-1 {
  right: calc(var(--size) * 0.6rem);
  width: calc(var(--size) * 0.95rem);
}

.sperm-tail-2 {
  right: calc(var(--size) * 1.38rem);
  width: calc(var(--size) * 1.1rem);
}

.sperm-tail-3 {
  right: calc(var(--size) * 2.32rem);
  width: calc(var(--size) * 1.2rem);
}

.sperm-eye,
.sperm-xeye {
  position: absolute;
  top: 43%;
  width: calc(var(--size) * 0.08rem);
  height: calc(var(--size) * 0.08rem);
  border-radius: 999px;
  pointer-events: none;
}

.sperm-eye-left,
.sperm-xeye-left {
  left: 37%;
}

.sperm-eye-right,
.sperm-xeye-right {
  left: 56%;
}

.sperm-eye {
  opacity: 0.88;
}

.sperm-xeye {
  opacity: 0;
}

.sperm-xeye::before,
.sperm-xeye::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: calc(var(--size) * 0.22rem);
  height: 1.5px;
  border-radius: 999px;
  transform-origin: center;
}

.sperm-xeye::before {
  transform: translate(-50%, -50%) rotate(45deg);
}

.sperm-xeye::after {
  transform: translate(-50%, -50%) rotate(-45deg);
}

.sperm-cold {
  animation-name: sperm-swim-cold, sperm-drift-cold;
  animation-duration: calc(var(--travel) * 1s), calc((var(--travel) + 2.4) * 1s);
  animation-timing-function: ease-in-out, linear;
  animation-iteration-count: infinite, infinite;
  animation-direction: alternate, alternate;
  animation-delay: calc(var(--delay) * -1s), calc(var(--delay) * -1s);
}

.sperm-cold .sperm-body {
  background: linear-gradient(135deg, #ffffff 0%, #c3f0ff 100%);
  box-shadow:
    0 0 16px rgba(255, 255, 255, 0.5),
    0 0 30px rgba(154, 204, 243, 0.24);
}

.sperm-cold .sperm-tail {
  background: linear-gradient(90deg, rgba(195, 240, 255, 0.18), rgba(255, 255, 255, 0.9));
  filter: drop-shadow(0 0 6px rgba(195, 240, 255, 0.22));
}

.sperm-cold .sperm-tail-1 {
  animation: tail-wave-1 calc(var(--tail-speed) * 1s) ease-in-out infinite;
}

.sperm-cold .sperm-tail-2 {
  animation: tail-wave-2 calc(var(--tail-speed) * 1s) ease-in-out infinite;
}

.sperm-cold .sperm-tail-3 {
  animation: tail-wave-3 calc(var(--tail-speed) * 1s) ease-in-out infinite;
}

.sperm-cold .sperm-eye {
  background: #0c405c;
}

.sperm-hot {
  animation-name: sperm-swim-hot, sperm-hot-life;
  animation-duration: calc(var(--travel) * 1s), calc(var(--life) * 1s);
  animation-timing-function: ease-in-out, linear;
  animation-iteration-count: infinite, 1;
  animation-direction: alternate, normal;
  animation-delay: calc(var(--delay) * -1s), var(--death-delay);
  animation-fill-mode: none, forwards;
}

.sperm-hot .sperm-body {
  background: linear-gradient(135deg, #ffffff 0%, #d7ecf7 100%);
  box-shadow:
    0 0 12px rgba(255, 255, 255, 0.28),
    0 0 18px rgba(255, 126, 102, 0.1);
  animation: hot-body-life calc(var(--life) * 1s) linear 1 forwards;
  animation-delay: var(--death-delay);
}

.sperm-hot .sperm-tail {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.92));
}

.sperm-hot .sperm-tail-1 {
  animation:
    tail-wave-1 calc(var(--tail-speed) * 1.2s) ease-in-out infinite,
    hot-tail-life calc(var(--life) * 1s) linear 1 forwards;
  animation-delay: calc(var(--delay) * -0.5s), var(--death-delay);
}

.sperm-hot .sperm-tail-2 {
  animation:
    tail-wave-2 calc(var(--tail-speed) * 1.2s) ease-in-out infinite,
    hot-tail-life calc(var(--life) * 1s) linear 1 forwards;
  animation-delay: calc(var(--delay) * -0.45s), var(--death-delay);
}

.sperm-hot .sperm-tail-3 {
  animation:
    tail-wave-3 calc(var(--tail-speed) * 1.2s) ease-in-out infinite,
    hot-tail-life calc(var(--life) * 1s) linear 1 forwards;
  animation-delay: calc(var(--delay) * -0.4s), var(--death-delay);
}

.sperm-hot .sperm-eye {
  background: #244455;
  animation: hot-eyes-life calc(var(--life) * 1s) linear 1 forwards;
  animation-delay: var(--death-delay);
}

.sperm-hot .sperm-xeye::before,
.sperm-hot .sperm-xeye::after {
  background: #31100a;
}

.sperm-hot .sperm-xeye {
  animation: hot-xeyes-life calc(var(--life) * 1s) linear 1 forwards;
  animation-delay: var(--death-delay);
}

.comparison-divider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--split);
  width: 2.75rem;
  transform: translateX(-50%);
  z-index: 3;
  pointer-events: auto;
  cursor: ew-resize;
}

.divider-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.78));
  box-shadow:
    0 0 0 1px rgba(0, 0, 0, 0.18),
    0 0 22px rgba(255, 255, 255, 0.28),
    0 0 60px rgba(154, 204, 243, 0.14);
}

.product-grid,
.standards-grid,
.table-grid {
  display: grid;
  gap: 1.2rem;
}

.checkout-shell {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  gap: 1.2rem;
  align-items: start;
}

.checkout-product-card,
.checkout-panel,
.checkout-card,
.checkout-success {
  border: 1px solid var(--line);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
}

.checkout-product-card,
.checkout-panel {
  border-radius: 2rem;
  background: linear-gradient(180deg, rgba(28, 31, 34, 0.94), rgba(16, 18, 20, 0.98));
}

.checkout-product-card {
  position: sticky;
  top: 6.8rem;
  overflow: hidden;
}

.checkout-product-media {
  position: relative;
  padding: 1.25rem 1.25rem 0;
}

.checkout-product-image-shell {
  border-radius: 1.6rem;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 30%, rgba(154, 204, 243, 0.18), transparent 36%),
    #171a1d;
}

.checkout-product-image-shell img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.checkout-product-badge {
  position: absolute;
  top: 2rem;
  left: 2rem;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  background: rgba(12, 14, 16, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--cool);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.checkout-product-copy {
  display: grid;
  gap: 1.25rem;
  padding: 1.4rem;
}

.checkout-product-head,
.checkout-panel-header,
.quantity-field {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.checkout-product-head {
  align-items: end;
}

.checkout-product-note,
.quantity-meta span,
.checkout-step-label,
.checkout-status,
.summary-row span,
.checkout-field span {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.checkout-product-note,
.quantity-meta span,
.checkout-status,
.summary-row span {
  color: rgba(230, 230, 233, 0.56);
}

.checkout-product-text,
.checkout-panel-text,
.checkout-success p {
  margin: 0;
  color: rgba(230, 230, 233, 0.76);
  line-height: 1.7;
}

.checkout-panel {
  padding: 1.4rem;
}

.checkout-panel-header {
  align-items: end;
  margin-bottom: 1.1rem;
}

.checkout-panel-text {
  max-width: 26rem;
}

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

body.is-checkout-success .checkout-form {
  display: none !important;
}

body.is-checkout-success .checkout-success {
  display: grid !important;
}

.checkout-card {
  padding: 1.25rem;
  border-radius: 1.7rem;
  background: linear-gradient(180deg, rgba(31, 34, 37, 0.95), rgba(18, 20, 22, 0.95));
}

.checkout-card-summary {
  background:
    radial-gradient(circle at 100% 0, rgba(255, 184, 106, 0.08), transparent 26%),
    radial-gradient(circle at 0 100%, rgba(154, 204, 243, 0.08), transparent 26%),
    linear-gradient(180deg, rgba(31, 34, 37, 0.95), rgba(18, 20, 22, 0.95));
}

.checkout-card-head {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.checkout-card-head strong,
.checkout-success strong {
  display: block;
  margin-top: 0.35rem;
  font-size: 1.02rem;
}

.checkout-step-number {
  width: 2.7rem;
  height: 2.7rem;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  background: rgba(255, 184, 106, 0.12);
  color: var(--warm);
  border: 1px solid rgba(255, 184, 106, 0.18);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.checkout-step-label,
.checkout-field span {
  color: rgba(230, 230, 233, 0.58);
}

.quantity-field {
  align-items: center;
  flex-wrap: wrap;
}

.quantity-stepper {
  display: grid;
  grid-template-columns: 3rem minmax(4.5rem, 5.6rem) 3rem;
  align-items: center;
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(9, 10, 12, 0.5);
}

.quantity-button,
.quantity-input {
  min-height: 3.25rem;
  border: 0;
  background: transparent;
  color: var(--text);
}

.quantity-button {
  display: inline-grid;
  place-items: center;
  font-size: 1.4rem;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease;
}

.quantity-button:hover {
  background: rgba(255, 184, 106, 0.1);
  color: var(--warm);
}

.quantity-input {
  width: 100%;
  padding: 0 0.5rem;
  text-align: center;
  font-size: 1.1rem;
  font-weight: 800;
  appearance: textfield;
}

.quantity-input::-webkit-outer-spin-button,
.quantity-input::-webkit-inner-spin-button {
  margin: 0;
  appearance: none;
}

.quantity-meta {
  display: grid;
  gap: 0.35rem;
}

.quantity-meta p {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
}

.checkout-contact-grid,
.checkout-fallback-grid,
.checkout-hosted-grid,
.checkout-success-meta {
  display: grid;
  gap: 0.9rem;
}

.checkout-success-meta {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.checkout-hosted-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.checkout-hosted-card,
.checkout-success-meta > div {
  padding: 1rem;
  border-radius: 1.25rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.checkout-hosted-card {
  display: grid;
  gap: 0.45rem;
}

.checkout-hosted-card p {
  margin: 0;
  color: rgba(230, 230, 233, 0.72);
  line-height: 1.65;
}

.checkout-contact-grid,
.checkout-fallback-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.checkout-fallback-grid {
  margin-top: 1rem;
}

.checkout-field {
  display: grid;
  gap: 0.45rem;
}

.checkout-field-span-2 {
  grid-column: span 2;
}

.checkout-field input {
  width: 100%;
  min-height: 3.5rem;
  padding: 0 1rem;
  border-radius: 1rem;
  border: 1px solid var(--line);
  background: rgba(9, 10, 12, 0.62);
  color: var(--text);
}

.checkout-field input::placeholder {
  color: rgba(230, 230, 233, 0.3);
}

.checkout-field input:focus-visible,
.quantity-button:focus-visible,
.quantity-input:focus-visible,
.checkout-submit:focus-visible {
  outline: 2px solid rgba(154, 204, 243, 0.52);
  outline-offset: 2px;
}

.stripe-element-shell {
  margin-top: 1rem;
  padding: 1rem;
  min-height: 6rem;
  border-radius: 1.25rem;
  border: 1px solid var(--line);
  background: rgba(9, 10, 12, 0.5);
}

.checkout-payment-fallback {
  margin-top: 0;
}

.checkout-summary {
  display: grid;
  gap: 0.8rem;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.summary-row strong {
  font-size: 0.98rem;
}

.summary-row-total {
  padding-top: 0.15rem;
  border-bottom: 0;
}

.summary-row-total strong {
  font-size: 1.2rem;
  color: var(--warm);
}

.checkout-status {
  margin: 0.25rem 0 0;
  line-height: 1.6;
}

.checkout-submit {
  width: 100%;
}

.checkout-success {
  display: grid;
  gap: 1rem;
  padding: 1.4rem;
  margin-top: 0;
  border-radius: 1.7rem;
  background:
    radial-gradient(circle at 0 0, rgba(154, 204, 243, 0.14), transparent 30%),
    radial-gradient(circle at 100% 100%, rgba(255, 184, 106, 0.14), transparent 36%),
    linear-gradient(180deg, rgba(28, 31, 34, 0.98), rgba(16, 18, 20, 0.98));
}

.checkout-success .button {
  justify-self: start;
}

.product-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
}

.product-card {
  padding: 1.25rem;
  border-radius: 2rem;
  background: linear-gradient(180deg, rgba(28, 31, 34, 0.94), rgba(16, 18, 20, 0.98));
  border: 1px solid var(--line);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
}

.product-card-alt {
  transform: translateY(4rem);
}

.product-image-shell {
  border-radius: 1.6rem;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 30%, rgba(154, 204, 243, 0.18), transparent 36%),
    #171a1d;
}

.product-image-shell img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.product-card-alt img {
  filter: grayscale(0.2) brightness(1.1) saturate(0.75) hue-rotate(170deg);
}

.product-meta {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 0 0.3rem;
}

.text-link {
  color: var(--warm);
}

.standards-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 1.2rem;
}

.standard-shot {
  position: relative;
  overflow: hidden;
  min-height: 20rem;
  border-radius: 1.9rem;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(24, 27, 30, 0.96), rgba(15, 17, 19, 0.98));
}

.standard-shot::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.standard-shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.standard-shot-hot img {
  opacity: 0.38;
  filter: grayscale(1) saturate(0.3) brightness(0.52) contrast(0.82);
  transform: scale(1.03);
}

.standard-shot-hot::after {
  background:
    linear-gradient(180deg, rgba(10, 11, 13, 0.2), rgba(10, 11, 13, 0.52)),
    radial-gradient(circle at 50% 50%, rgba(255, 180, 171, 0.08), transparent 60%);
}

.standard-shot-cold img {
  filter: contrast(1.02) saturate(1.04);
}

.standard-shot-cold::after {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(10, 11, 13, 0.14)),
    radial-gradient(circle at 50% 20%, rgba(154, 204, 243, 0.08), transparent 50%);
}

.standard-shot span {
  position: absolute;
  top: 1.25rem;
  left: 1.25rem;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.standard-shot-hot span {
  color: var(--danger);
  background: rgba(147, 0, 10, 0.42);
}

.standard-shot-cold span {
  color: #291500;
  background: rgba(255, 184, 106, 0.92);
}

.comparison-facts {
  display: grid;
  border: 1px solid var(--line);
  border-radius: 1.8rem;
  background:
    linear-gradient(180deg, rgba(25, 28, 31, 0.9), rgba(16, 18, 20, 0.96));
  overflow: hidden;
}

.comparison-facts-head,
.comparison-fact {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1fr) minmax(0, 1fr);
  column-gap: 1.2rem;
  align-items: start;
}

.comparison-facts-head {
  padding: 1rem 1.4rem 0.95rem;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.comparison-facts-head span {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.comparison-facts-head span:nth-child(2) {
  color: var(--danger);
}

.comparison-facts-head span:nth-child(3) {
  color: var(--cool);
}

.comparison-fact {
  padding: 1.25rem 1.4rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.comparison-fact:last-child {
  border-bottom: 0;
}

.comparison-fact-topic {
  padding-right: 0.4rem;
}

.comparison-fact-topic h3 {
  margin: 0.45rem 0 0;
  font-size: clamp(1rem, 1.8vw, 1.3rem);
}

.comparison-fact-cell {
  min-height: 100%;
  padding: 0.15rem 0;
  line-height: 1.6;
  font-weight: 700;
}

.fail {
  color: var(--danger);
}

.pass {
  color: var(--cool);
}

.newsletter-shell {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 2rem;
  align-items: center;
  padding: 2rem;
  border-radius: 2rem;
  background:
    linear-gradient(180deg, rgba(31, 34, 37, 0.98), rgba(15, 17, 19, 0.98));
  border: 1px solid var(--line);
  overflow: hidden;
}

.newsletter-glow {
  position: absolute;
  width: 22rem;
  height: 22rem;
  border-radius: 999px;
  filter: blur(100px);
  opacity: 0.4;
}

.newsletter-glow-left {
  left: -8rem;
  bottom: -10rem;
  background: rgba(255, 184, 106, 0.28);
}

.newsletter-glow-right {
  right: -8rem;
  top: -10rem;
  background: rgba(154, 204, 243, 0.24);
}

.newsletter-copy,
.newsletter-form {
  position: relative;
  z-index: 1;
}

.newsletter-form {
  display: flex;
  gap: 0.8rem;
}

.newsletter-form input {
  width: 100%;
  min-height: 3.7rem;
  padding: 0 1.2rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(9, 10, 12, 0.62);
  color: var(--text);
}

.newsletter-form input::placeholder {
  color: rgba(230, 230, 233, 0.38);
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.site-footer {
  width: min(1200px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 0 0 8rem;
  display: grid;
  gap: 1rem;
}

.footer-brand {
  justify-self: start;
  margin-bottom: 0.7rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
}

.footer-meta {
  color: rgba(230, 230, 233, 0.38);
}

.mobile-dock {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 60;
  display: none;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.7rem;
  border-radius: 999px;
  background: rgba(12, 14, 16, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(18px);
}

.mobile-dock a {
  flex: 1;
  text-align: center;
  padding: 0.8rem 0.4rem;
  border-radius: 999px;
  color: rgba(230, 230, 233, 0.78);
}

.mobile-dock a:hover {
  background: rgba(255, 184, 106, 0.1);
  color: var(--warm);
}

:root[data-theme="light"] body {
  background:
    radial-gradient(circle at top, rgba(224, 143, 59, 0.18), transparent 24%),
    linear-gradient(180deg, #fbf5ed 0%, #efe3d3 100%);
}

:root[data-theme="light"] .site-header {
  background: rgba(251, 245, 237, 0.82);
  border-bottom-color: rgba(96, 68, 43, 0.1);
}

:root[data-theme="light"] .nav-links a,
:root[data-theme="light"] .footer-links a,
:root[data-theme="light"] .mobile-dock a,
:root[data-theme="light"] .cart-chip span:first-child {
  color: rgba(23, 18, 16, 0.82);
}

:root[data-theme="light"] .brand-frost {
  background: linear-gradient(180deg, #8ed4f4 0%, #5bbbe8 42%, #3aa6da 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-stroke: 0;
  text-shadow:
    0 0 12px rgba(70, 175, 230, 0.4),
    0 0 30px rgba(70, 175, 230, 0.2),
    0 0 50px rgba(70, 175, 230, 0.1);
}

:root[data-theme="light"] .icon-button,
:root[data-theme="light"] .theme-toggle,
:root[data-theme="light"] .cart-chip {
  background: rgba(255, 251, 246, 0.76);
  border-color: rgba(96, 68, 43, 0.12);
  box-shadow: 0 12px 24px rgba(138, 102, 68, 0.08);
}

:root[data-theme="light"] .theme-toggle-dot {
  box-shadow: 0 0 0 0.22rem rgba(199, 109, 24, 0.12);
}

:root[data-theme="light"] .hero-orb-warm {
  background: radial-gradient(circle, rgba(224, 143, 59, 0.16), transparent 70%);
}

:root[data-theme="light"] .hero-orb-cool {
  background: radial-gradient(circle, rgba(44, 132, 185, 0.14), transparent 68%);
}

:root[data-theme="light"] .hero-grid {
  background-image:
    linear-gradient(rgba(54, 39, 28, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(54, 39, 28, 0.05) 1px, transparent 1px);
}

:root[data-theme="light"] .hero-text,
:root[data-theme="light"] .section-text,
:root[data-theme="light"] .feature-card p,
:root[data-theme="light"] .comparison-copy p:last-child,
:root[data-theme="light"] .site-footer p {
  color: rgba(32, 24, 20, 0.74);
}

:root[data-theme="light"] .feature-index,
:root[data-theme="light"] .footer-meta {
  color: rgba(69, 52, 40, 0.52);
}

:root[data-theme="light"] .button-primary {
  background: linear-gradient(135deg, #e8850a 0%, #c46a0e 100%);
  color: #fff;
  box-shadow: 0 10px 28px rgba(180, 90, 10, 0.22);
}

:root[data-theme="light"] .button-secondary {
  border-color: rgba(44, 132, 185, 0.18);
  background: rgba(44, 132, 185, 0.08);
  color: var(--cool-deep);
}

:root[data-theme="light"] .hero-sauna-aura {
  opacity: 0.18;
  filter: blur(24px) saturate(0.98) brightness(0.9);
}

:root[data-theme="light"] .hero-image-glow {
  background: radial-gradient(circle at 54% 56%, rgba(44, 132, 185, 0.18), rgba(44, 132, 185, 0.05) 32%, transparent 68%);
}



:root[data-theme="light"] .sauna-image-panel,
:root[data-theme="light"] .feature-card,
:root[data-theme="light"] .checkout-product-card,
:root[data-theme="light"] .checkout-panel,
:root[data-theme="light"] .checkout-card,
:root[data-theme="light"] .checkout-success,
:root[data-theme="light"] .product-card,
:root[data-theme="light"] .standard-shot,
:root[data-theme="light"] .comparison-facts,
:root[data-theme="light"] .newsletter-shell {
  border-color: rgba(96, 68, 43, 0.12);
  box-shadow: 0 18px 45px rgba(138, 102, 68, 0.1);
}

:root[data-theme="light"] .sauna-image-panel img {
  filter: brightness(0.98) contrast(1.02) saturate(0.88);
}

:root[data-theme="light"] .sauna-image-overlay {
  background:
    linear-gradient(180deg, rgba(255, 248, 240, 0.06), rgba(112, 75, 42, 0.18)),
    radial-gradient(circle at center, rgba(224, 143, 59, 0.14), transparent 58%);
}

:root[data-theme="light"] .feature-card {
  background: linear-gradient(180deg, rgba(255, 251, 246, 0.94), rgba(244, 232, 219, 0.96));
}

:root[data-theme="light"] .feature-card-large {
  background:
    radial-gradient(circle at 92% 100%, rgba(44, 132, 185, 0.12), transparent 36%),
    linear-gradient(180deg, rgba(255, 251, 246, 0.98), rgba(244, 232, 219, 0.98));
}

:root[data-theme="light"] .meter-track {
  background: rgba(96, 68, 43, 0.12);
}

:root[data-theme="light"] .comparison-slider {
  border-color: rgba(96, 68, 43, 0.12);
  background: #f2e7da;
  box-shadow: 0 22px 60px rgba(138, 102, 68, 0.14);
}

:root[data-theme="light"] .comparison-panel-cold {
  background:
    radial-gradient(circle at 62% 48%, rgba(44, 132, 185, 0.16), transparent 30%),
    linear-gradient(135deg, #d7eef9 0%, #ebf5fa 54%, #f7fbfd 100%);
}

:root[data-theme="light"] .comparison-panel-hot {
  background:
    radial-gradient(circle at 45% 42%, rgba(224, 143, 59, 0.18), transparent 34%),
    linear-gradient(135deg, #f7d0b9 0%, #f3e0d4 52%, #f8f0e8 100%);
  box-shadow: inset -10px 0 30px rgba(120, 81, 52, 0.08);
}

:root[data-theme="light"] .comparison-content::before {
  background:
    linear-gradient(180deg, rgba(73, 54, 40, 0.03), transparent 26%, rgba(73, 54, 40, 0.08)),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 9rem,
      rgba(73, 54, 40, 0.03) 9rem,
      rgba(73, 54, 40, 0.03) calc(9rem + 1px)
    );
}

:root[data-theme="light"] .comparison-copy {
  background: rgba(255, 251, 246, 0.72);
  border-color: rgba(96, 68, 43, 0.12);
  box-shadow: 0 16px 30px rgba(138, 102, 68, 0.08);
}

:root[data-theme="light"] .sperm-field-hot::before {
  background:
    radial-gradient(circle at 50% 50%, rgba(180, 74, 54, 0.12), transparent 46%),
    linear-gradient(180deg, transparent, rgba(180, 74, 54, 0.08));
}

:root[data-theme="light"] .sperm-field-cold::before {
  background:
    radial-gradient(circle at 50% 50%, rgba(44, 132, 185, 0.08), transparent 48%),
    linear-gradient(180deg, transparent, rgba(44, 132, 185, 0.06));
}

:root[data-theme="light"] .product-card {
  background: linear-gradient(180deg, rgba(255, 251, 246, 0.96), rgba(244, 232, 219, 0.98));
}

:root[data-theme="light"] .checkout-product-card,
:root[data-theme="light"] .checkout-panel,
:root[data-theme="light"] .checkout-card,
:root[data-theme="light"] .checkout-success {
  background: linear-gradient(180deg, rgba(255, 251, 246, 0.96), rgba(244, 232, 219, 0.98));
}

:root[data-theme="light"] .checkout-card-summary,
:root[data-theme="light"] .checkout-success {
  background:
    radial-gradient(circle at 100% 0, rgba(199, 109, 24, 0.08), transparent 26%),
    radial-gradient(circle at 0 100%, rgba(44, 132, 185, 0.08), transparent 26%),
    linear-gradient(180deg, rgba(255, 251, 246, 0.98), rgba(244, 232, 219, 0.98));
}

:root[data-theme="light"] .checkout-product-image-shell {
  background:
    radial-gradient(circle at 50% 30%, rgba(44, 132, 185, 0.12), transparent 36%),
    #f7efe5;
}

:root[data-theme="light"] .checkout-product-badge {
  background: rgba(255, 251, 246, 0.82);
  border-color: rgba(96, 68, 43, 0.12);
  box-shadow: 0 10px 24px rgba(138, 102, 68, 0.08);
}

:root[data-theme="light"] .checkout-product-note,
:root[data-theme="light"] .quantity-meta span,
:root[data-theme="light"] .checkout-step-label,
:root[data-theme="light"] .checkout-status,
:root[data-theme="light"] .summary-row span,
:root[data-theme="light"] .checkout-field span {
  color: rgba(69, 52, 40, 0.56);
}

:root[data-theme="light"] .checkout-product-text,
:root[data-theme="light"] .checkout-panel-text,
:root[data-theme="light"] .checkout-success p {
  color: rgba(32, 24, 20, 0.74);
}

:root[data-theme="light"] .checkout-hosted-card,
:root[data-theme="light"] .checkout-success-meta > div {
  background: rgba(255, 255, 255, 0.45);
  border-color: rgba(96, 68, 43, 0.1);
}

:root[data-theme="light"] .checkout-hosted-card p {
  color: rgba(32, 24, 20, 0.74);
}

:root[data-theme="light"] .quantity-stepper,
:root[data-theme="light"] .stripe-element-shell,
:root[data-theme="light"] .checkout-field input {
  background: rgba(255, 255, 255, 0.72);
  border-color: rgba(96, 68, 43, 0.12);
}

:root[data-theme="light"] .summary-row {
  border-bottom-color: rgba(96, 68, 43, 0.08);
}

:root[data-theme="light"] .product-image-shell {
  background:
    radial-gradient(circle at 50% 30%, rgba(44, 132, 185, 0.12), transparent 36%),
    #f7efe5;
}

:root[data-theme="light"] .standard-shot {
  background: linear-gradient(180deg, rgba(255, 251, 246, 0.96), rgba(244, 232, 219, 0.98));
}

:root[data-theme="light"] .standard-shot-hot::after {
  background:
    linear-gradient(180deg, rgba(255, 251, 246, 0.06), rgba(115, 76, 49, 0.18)),
    radial-gradient(circle at 50% 50%, rgba(180, 74, 54, 0.08), transparent 60%);
}

:root[data-theme="light"] .standard-shot-cold::after {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(80, 114, 136, 0.08)),
    radial-gradient(circle at 50% 20%, rgba(44, 132, 185, 0.08), transparent 50%);
}

:root[data-theme="light"] .standard-shot-hot span {
  background: rgba(180, 74, 54, 0.12);
}

:root[data-theme="light"] .standard-shot-cold span {
  color: #5b2b03;
  background: rgba(199, 109, 24, 0.18);
}

:root[data-theme="light"] .comparison-facts {
  background: linear-gradient(180deg, rgba(255, 251, 246, 0.96), rgba(244, 232, 219, 0.98));
}

:root[data-theme="light"] .comparison-facts-head {
  background: rgba(96, 68, 43, 0.04);
  border-bottom-color: rgba(96, 68, 43, 0.1);
}

:root[data-theme="light"] .comparison-fact {
  border-bottom-color: rgba(96, 68, 43, 0.08);
}

:root[data-theme="light"] .newsletter-shell {
  background: linear-gradient(180deg, rgba(255, 251, 246, 0.98), rgba(244, 232, 219, 0.98));
}

:root[data-theme="light"] .newsletter-form input {
  background: rgba(255, 255, 255, 0.74);
}

:root[data-theme="light"] .newsletter-form input::placeholder {
  color: rgba(69, 52, 40, 0.42);
}

:root[data-theme="light"] .footer-meta {
  color: rgba(69, 52, 40, 0.42);
}

:root[data-theme="light"] .mobile-dock {
  background: rgba(251, 245, 237, 0.88);
  border-color: rgba(96, 68, 43, 0.12);
}

body.is-scrolled .site-header {
  background: rgba(12, 14, 16, 0.52);
}

body.is-scrolled .brand-compact {
  display: block;
}

body.is-scrolled .brand-compact .brand-frost {
  display: inline-block;
  transform: rotate(90deg);
}

body.is-scrolled .icon-button,
body.is-scrolled .nav-drawer,
body.is-scrolled .brand {
  display: none;
}

body.is-scrolled .nav {
  grid-template-columns: auto 1fr;
  min-height: 3.75rem;
}

body.is-scrolled .nav-links {
  display: flex;
}

body.is-scrolled .desktop-only {
  display: flex;
}

body.is-scrolled .theme-toggle-label {
  display: none;
}

body.is-scrolled .theme-toggle {
  padding: 0.8rem;
}

:root[data-theme="light"] body.is-scrolled .site-header {
  background: rgba(251, 245, 237, 0.52);
}

@keyframes sperm-swim-cold {
  0% {
    transform: translate3d(-6%, -8%, 0) rotate(calc(var(--base-rotate) - 10deg)) scale(1);
  }
  100% {
    transform: translate3d(22%, 12%, 0) rotate(calc(var(--base-rotate) + 8deg)) scale(1.02);
  }
}

@keyframes sperm-drift-cold {
  0% {
    margin-left: -0.2rem;
  }
  100% {
    margin-left: 1rem;
  }
}

@keyframes sperm-swim-hot {
  0% {
    transform: translate3d(-2%, -6%, 0) rotate(calc(var(--base-rotate) - 10deg)) scale(1);
  }
  100% {
    transform: translate3d(12%, 14%, 0) rotate(calc(var(--base-rotate) + 11deg)) scale(0.96);
  }
}

@keyframes sperm-hot-life {
  0%,
  22% {
    opacity: 1;
    filter: blur(0);
  }
  48% {
    opacity: 0.84;
  }
  68% {
    opacity: 0.38;
    filter: blur(0.7px);
  }
  82% {
    opacity: 0.12;
  }
  90%,
  100% {
    opacity: 0;
    filter: blur(1.6px);
  }
}

@keyframes hot-body-life {
  0%,
  16% {
    background: linear-gradient(135deg, #ffffff 0%, #d7ecf7 100%);
    box-shadow:
      0 0 12px rgba(255, 255, 255, 0.3),
      0 0 18px rgba(255, 126, 102, 0.1);
    filter: grayscale(0);
  }
  42% {
    background: linear-gradient(135deg, #ffd9d0 0%, #ff8e77 100%);
    box-shadow:
      0 0 10px rgba(255, 206, 196, 0.18),
      0 0 18px rgba(255, 126, 102, 0.22);
  }
  68% {
    background: linear-gradient(135deg, #ffb1a1 0%, #d93e25 100%);
    filter: grayscale(0.22);
  }
  84%,
  100% {
    background: linear-gradient(135deg, #a33726 0%, #4f140d 100%);
    box-shadow: none;
    filter: grayscale(0.8);
  }
}

@keyframes hot-tail-life {
  0%,
  18% {
    opacity: 1;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.92));
  }
  42% {
    background: linear-gradient(90deg, rgba(255, 206, 196, 0.12), rgba(255, 136, 110, 0.86));
  }
  62% {
    opacity: 0.38;
  }
  82%,
  100% {
    background: linear-gradient(90deg, rgba(163, 55, 38, 0.1), rgba(79, 20, 13, 0.6));
    opacity: 0;
  }
}

@keyframes hot-eyes-life {
  0%,
  26% {
    opacity: 0.84;
    background: #244455;
  }
  58% {
    background: #4b190d;
  }
  74%,
  100% {
    opacity: 0;
  }
}

@keyframes hot-xeyes-life {
  0%,
  58% {
    opacity: 0;
  }
  70%,
  88% {
    opacity: 1;
  }
  96%,
  100% {
    opacity: 0;
  }
}

@keyframes tail-wave-1 {
  0%,
  100% {
    transform: translateY(-50%) rotate(-17deg);
  }
  50% {
    transform: translateY(-50%) rotate(12deg);
  }
}

@keyframes tail-wave-2 {
  0%,
  100% {
    transform: translateY(-50%) rotate(12deg);
  }
  50% {
    transform: translateY(-50%) rotate(-16deg);
  }
}

@keyframes tail-wave-3 {
  0%,
  100% {
    transform: translateY(-50%) rotate(-10deg);
  }
  50% {
    transform: translateY(-50%) rotate(18deg);
  }
}

@keyframes frostPulse {
  0%,
  100% {
    opacity: 0.48;
    transform: scale(0.96);
  }
  45% {
    opacity: 0.92;
    transform: scale(1);
  }
  70% {
    opacity: 0.62;
    transform: scale(1.02);
  }
}

@keyframes frostDrift {
  0%,
  100% {
    opacity: 0.42;
    transform: translate3d(-0.2rem, 0.3rem, 0);
  }
  50% {
    opacity: 0.8;
    transform: translate3d(0.35rem, -0.45rem, 0);
  }
}

@keyframes frostSpark {
  0%,
  100% {
    opacity: 0.22;
    transform: scale(0.94);
  }
  40% {
    opacity: 0.72;
    transform: scale(1);
  }
  76% {
    opacity: 0.34;
    transform: scale(1.04);
  }
}


@media (max-width: 1080px) {
  .hero,
  .newsletter-shell,
  .feature-grid,
  .product-grid,
  .checkout-shell {
    grid-template-columns: 1fr;
  }

  .product-card-alt {
    transform: none;
  }

  .checkout-product-card {
    position: static;
  }

  .checkout-success-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .comparison-slider {
    min-height: 36rem;
  }
}

@media (max-width: 760px) {
  .sperm {
    will-change: auto;
  }

  .sperm-cold .sperm-body {
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
  }

  .sperm-cold .sperm-tail {
    filter: none;
  }

  .sperm-hot .sperm-body {
    animation: none;
  }

  @keyframes sperm-hot-life {
    0%, 22% { opacity: 1; }
    48% { opacity: 0.84; }
    68% { opacity: 0.38; }
    82% { opacity: 0.12; }
    90%, 100% { opacity: 0; }
  }

  .desktop-only,
  body.is-scrolled .desktop-only {
    display: none;
  }

  .nav {
    grid-template-columns: auto 1fr auto;
  }

  body.is-menu-open .nav-drawer {
    max-width: 12.5rem;
  }

  .brand {
    justify-self: start;
    margin-left: 0.5rem;
    font-size: 1.6rem;
  }

  .section {
    width: min(100% - 1rem, 100%);
    padding: 4rem 0;
  }

  .hero {
    gap: 2rem;
    padding-top: 2rem;
  }

  .hero-copy {
    padding-bottom: 2rem;
  }

  .theme-toggle {
    padding: 0.8rem;
  }

  .theme-toggle-label {
    display: none;
  }

  .hero-visual {
    min-height: 28rem;
  }

  .hero-sauna-aura {
    inset: -8% -14% -8% 2%;
    opacity: 0.22;
  }

  .hero-frost-field {
    inset: 20% 6% 20% 14%;
  }

  h1 {
    font-size: clamp(3rem, 16vw, 4.8rem);
  }

  h2 {
    font-size: clamp(2rem, 10vw, 3.2rem);
  }

  .section-heading,
  .product-meta,
  .newsletter-form,
  .checkout-product-head,
  .checkout-panel-header,
  .quantity-field {
    flex-direction: column;
    align-items: start;
  }


  .comparison-slider {
    min-height: 34rem;
    cursor: pointer;
  }

  .comparison-divider {
    display: none;
  }

  .standards-grid {
    gap: 0.8rem;
  }

  .standard-shot {
    min-height: 14rem;
  }

  .standard-shot span {
    top: 0.85rem;
    left: 0.85rem;
    padding: 0.55rem 0.75rem;
    font-size: 0.62rem;
    letter-spacing: 0.16em;
  }

  .comparison-fact {
    padding: 1rem;
  }

  .comparison-facts-head,
  .comparison-fact {
    column-gap: 0.8rem;
  }

  .comparison-facts-head {
    padding: 0.9rem 1rem 0.8rem;
  }

  .comparison-fact-topic h3 {
    font-size: 0.98rem;
  }

  .comparison-fact-cell {
    padding: 0;
    font-size: 0.92rem;
    line-height: 1.45;
  }

  .comparison-copy {
    top: 1rem;
    left: 1rem;
    right: 1rem;
    max-width: none;
  }

  .checkout-contact-grid,
  .checkout-fallback-grid,
  .checkout-hosted-grid,
  .checkout-success-meta {
    grid-template-columns: 1fr;
  }

  .checkout-field-span-2 {
    grid-column: auto;
  }

  .comparison-copy-right {
    left: auto;
  }

  .comparison-panel-cold,
  .comparison-panel-hot,
  .sperm-field-cold,
  .sperm-field-hot {
    transition: clip-path 220ms ease;
  }

  .site-footer {
    padding-bottom: 7rem;
  }

  .mobile-dock {
    display: flex;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}