@import url("https://cdn.jsdelivr.net/gh/fonts-archive/Paperlogy/Paperlogy.css");

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #100e0f;
  --bg-soft: #181416;
  --fg: #f7f3eb;
  --fg-muted: rgba(247, 243, 235, 0.62);
  --fg-faint: rgba(247, 243, 235, 0.45);
  --muted: #1c1719;
  --card: rgba(255, 255, 255, 0.04);
  --accent: #9e2b45;
  --accent-deep: #6b1a2e;
  --accent-soft: #d4a0ab;
  --ember: linear-gradient(115deg, #f0cfc8 0%, #c45a62 32%, #8b1e3a 68%, #3d1219 100%);
  --ember-soft: linear-gradient(120deg, rgba(212, 160, 171, 0.95), rgba(158, 43, 69, 0.92));
  --ember-btn: linear-gradient(115deg, #a83a4f 0%, #7a1f35 48%, #4a1424 100%);
  --ember-glow: rgba(158, 43, 69, 0.45);
  --ember-glow-hot: rgba(196, 90, 98, 0.35);
  --text-ember: linear-gradient(115deg, #f0cfc8 0%, #d4656e 22%, #9e2b45 48%, #c45a62 72%, #8b1e3a 100%);
  --text-ember-glow: rgba(158, 43, 69, 0.28);
  --text-ember-glow-hot: rgba(196, 90, 98, 0.48);
  --text-ember-edge: rgba(74, 20, 36, 0.12);
  --text-ember-edge-hot: rgba(74, 20, 36, 0.18);
  --glass: linear-gradient(155deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.03));
  --line: rgba(255, 255, 255, 0.12);
  --line-strong: rgba(255, 255, 255, 0.08);
  --shadow: rgba(0, 0, 0, 0.28);
  --shadow-deep: rgba(0, 0, 0, 0.4);
  --header-scrolled-bg: rgba(16, 14, 15, 0.84);
  --header-scrolled-shadow: 0 12px 40px rgba(0, 0, 0, 0.28);
  --logo-filter: brightness(0) invert(1);
  --logo-opacity: 0.95;
  --menu-hover-bg: rgba(255, 255, 255, 0.06);
  --body-bg:
    radial-gradient(ellipse 90% 55% at 50% -10%, rgba(158, 43, 69, 0.14), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 40%, rgba(122, 31, 53, 0.08), transparent 50%),
    linear-gradient(180deg, #141012 0%, #100e0f 40%, #161214 100%);
  --section-muted-bg:
    radial-gradient(ellipse 70% 50% at 20% 0%, rgba(158, 43, 69, 0.1), transparent 55%),
    linear-gradient(180deg, #171314 0%, #1b1618 100%);
  --mobile-nav-bg:
    radial-gradient(ellipse 80% 50% at 100% 0%, rgba(158, 43, 69, 0.2), transparent 55%),
    linear-gradient(165deg, #151214 0%, #0b090a 55%, #141012 100%);
  --science-bg-color: #0c0a0b;
  --science-bg-image:
    radial-gradient(ellipse 70% 45% at 85% 12%, rgba(158, 43, 69, 0.18), transparent 55%),
    radial-gradient(ellipse 55% 40% at 8% 78%, rgba(122, 31, 53, 0.1), transparent 50%),
    linear-gradient(180deg, #0e0c0d 0%, #151214 50%, #110e10 100%);
  --science-fg: #f5f0e8;
  --science-heading: #faf6f0;
  --science-copy: rgba(250, 246, 240, 0.88);
  --science-scan: rgba(255, 255, 255, 0.02);
  --science-media-bg: #0d0b0c;
  --reviews-bg:
    radial-gradient(ellipse 60% 40% at 80% 10%, rgba(158, 43, 69, 0.08), transparent 55%),
    linear-gradient(180deg, #110e10 0%, #151214 100%);
  --review-note: rgba(247, 243, 235, 0.55);
  --review-link: rgba(212, 160, 171, 0.95);
  --review-link-hover: #e8c4cb;
  --card-bg: linear-gradient(160deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  --card-hover-border: rgba(158, 43, 69, 0.35);
  --icon-bg: #2a2225;
  --caption: rgba(247, 243, 235, 0.82);
  --tab-track: rgba(255, 255, 255, 0.04);
  --tab-idle: rgba(247, 243, 235, 0.5);
  --pricing-bg:
    radial-gradient(ellipse 80% 70% at 50% 120%, rgba(158, 43, 69, 0.32), transparent 55%),
    linear-gradient(160deg, #1c1518 0%, #100d0f 55%, #191316 100%);
  --pricing-border: rgba(158, 43, 69, 0.28);
  --pricing-fg: #fff;
  --footer-bg: linear-gradient(180deg, #141012 0%, #0c0a0b 100%);
  --btn-dark-bg: linear-gradient(180deg, #2a2225, #171314);
  --btn-dark-fg: #fff;
  --btn-dark-border: rgba(255, 255, 255, 0.08);
  --display-title: linear-gradient(165deg, #fffef8 0%, #f5ebe0 38%, #e4d2c4 72%, #f0e4d6 100%);
  --strike: rgba(247, 243, 235, 0.4);
  --page-section-muted-bg:
    radial-gradient(ellipse 60% 40% at 10% 0%, rgba(158, 43, 69, 0.08), transparent 55%),
    linear-gradient(180deg, #151214 0%, #110e10 100%);
  --page-hero-title: #faf6f0;
  --media-slot: #1b1618;
}

:root,
html[data-theme="light"] {
  color-scheme: light;
  --bg: #faf7f2;
  --bg-soft: #fffcf7;
  --fg: #2a1c20;
  --fg-muted: rgba(42, 28, 32, 0.58);
  --fg-faint: rgba(42, 28, 32, 0.4);
  --muted: #f3eee6;
  --card: rgba(255, 252, 247, 0.78);
  --accent: #8b1e3a;
  --accent-deep: #6b1a2e;
  --accent-soft: #a84a5c;
  --ember: linear-gradient(115deg, #c45a62 0%, #9e2b45 34%, #6b1a2e 70%, #4a1424 100%);
  --ember-soft: linear-gradient(120deg, rgba(184, 90, 106, 0.95), rgba(139, 30, 58, 0.92));
  --ember-btn: linear-gradient(115deg, #9e2b45 0%, #7a1f35 48%, #5c1528 100%);
  --ember-glow: rgba(139, 30, 58, 0.28);
  --ember-glow-hot: rgba(196, 90, 98, 0.22);
  --text-ember: linear-gradient(115deg, #b84352 0%, #9e2b45 28%, #6b1a2e 52%, #a83a4f 76%, #8b1e3a 100%);
  --text-ember-glow: rgba(139, 30, 58, 0.18);
  --text-ember-glow-hot: rgba(158, 43, 69, 0.28);
  --text-ember-edge: rgba(74, 20, 36, 0.1);
  --text-ember-edge-hot: rgba(74, 20, 36, 0.14);
  --glass: linear-gradient(155deg, rgba(255, 252, 247, 0.96), rgba(250, 247, 242, 0.9));
  --line: rgba(42, 28, 32, 0.1);
  --line-strong: rgba(42, 28, 32, 0.08);
  --shadow: rgba(107, 26, 46, 0.07);
  --shadow-deep: rgba(74, 20, 36, 0.12);
  --header-scrolled-bg: rgba(250, 247, 242, 0.92);
  --header-scrolled-shadow: 0 10px 28px rgba(107, 26, 46, 0.06);
  --logo-filter: none;
  --logo-opacity: 1;
  --menu-hover-bg: rgba(139, 30, 58, 0.08);
  --body-bg:
    radial-gradient(ellipse 95% 60% at 50% -8%, rgba(158, 43, 69, 0.08), transparent 58%),
    radial-gradient(ellipse 50% 40% at 100% 30%, rgba(212, 160, 171, 0.1), transparent 52%),
    radial-gradient(ellipse 45% 35% at 0% 70%, rgba(243, 238, 230, 0.9), transparent 50%),
    linear-gradient(180deg, #fffcf7 0%, #faf7f2 42%, #f5f0e8 100%);
  --section-muted-bg:
    radial-gradient(ellipse 70% 50% at 15% 0%, rgba(158, 43, 69, 0.06), transparent 55%),
    linear-gradient(180deg, #f5f0e8 0%, #f0ebe2 100%);
  --mobile-nav-bg:
    radial-gradient(ellipse 80% 50% at 100% 0%, rgba(158, 43, 69, 0.1), transparent 55%),
    linear-gradient(165deg, #fffcf7 0%, #f5f0e8 55%, #faf7f2 100%);
  --science-bg-color: #fffcf7;
  --science-bg-image: none;
  --science-fg: #2a1c20;
  --science-heading: #2a1c20;
  --science-copy: rgba(42, 28, 32, 0.7);
  --science-scan: rgba(42, 28, 32, 0.035);
  --science-media-bg: #f0ebe4;
  --reviews-bg: #fffcf7;
  --review-note: rgba(42, 28, 32, 0.48);
  --review-link: #a84a5c;
  --review-link-hover: #8b1e3a;
  --card-bg: linear-gradient(160deg, #fffcf7, #faf7f2);
  --card-hover-border: rgba(139, 30, 58, 0.32);
  --icon-bg: #fffcf7;
  --caption: rgba(42, 28, 32, 0.76);
  --tab-track: rgba(139, 30, 58, 0.08);
  --tab-idle: rgba(42, 28, 32, 0.45);
  --pricing-bg:
    radial-gradient(ellipse 80% 70% at 50% 120%, rgba(158, 43, 69, 0.28), transparent 55%),
    linear-gradient(160deg, #2a1c20 0%, #1a1215 55%, #24181c 100%);
  --pricing-border: rgba(158, 43, 69, 0.32);
  --pricing-fg: #fff;
  --footer-bg: linear-gradient(180deg, #f5f0e8 0%, #f0ebe2 100%);
  --btn-dark-bg: linear-gradient(180deg, #2a2225, #171314);
  --btn-dark-fg: #fff;
  --btn-dark-border: rgba(42, 28, 32, 0.1);
  --display-title: linear-gradient(165deg, #3f282c 0%, #2a1c20 42%, #5c343c 78%, #3a2428 100%);
  --strike: rgba(42, 28, 32, 0.32);
  --page-section-muted-bg:
    radial-gradient(ellipse 60% 40% at 10% 0%, rgba(158, 43, 69, 0.04), transparent 55%),
    linear-gradient(180deg, #faf7f2 0%, #f5f0e8 100%);
  --page-hero-title: #faf6f0;
  --media-slot: #ebe4dc;
}

:root {
  --max: 1600px;
  --page-gutter: 16px; /* mobile */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --font-display: "Paperlogy", system-ui, sans-serif;
  --font-body: "Paperlogy", system-ui, sans-serif;
}

@media (min-width: 768px) {
  :root {
    --page-gutter: 40px; /* tablet / PC */
  }
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
}

html[data-theme="dark"] {
  color-scheme: dark;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--fg);
  background: var(--body-bg);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  word-break: keep-all;
  overflow-wrap: break-word;
  line-break: strict;
  transition: color 0.25s ease, background 0.35s ease;
}

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

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

.container {
  width: min(100% - (var(--page-gutter) * 2), var(--max));
  margin: 0 auto;
}

.section {
  padding: clamp(72px, 9vw, 112px) 0;
}

.section-muted {
  background: var(--section-muted-bg);
}

.section-eyebrow {
  position: relative;
  margin: 0 0 16px;
  font-size: clamp(11px, 0.95vw, 12px);
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent-soft);
  background: linear-gradient(105deg, var(--accent-soft) 0%, var(--accent) 48%, var(--accent-soft) 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: eyebrow-sheen 7s ease-in-out infinite;
}

.section-eyebrow:not(.center) {
  display: block;
  text-align: left;
}

.section-eyebrow.center {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  text-align: center;
}

.section-eyebrow.center::before,
.section-eyebrow.center::after {
  content: "";
  flex: 0 0 auto;
  width: clamp(20px, 3vw, 36px);
  height: 1px;
  border-radius: 1px;
  background: var(--ember);
  box-shadow: 0 0 10px var(--ember-glow);
  opacity: 0.85;
}

.section-eyebrow.center::before {
  animation: ember-line-pulse 4.5s ease-in-out infinite;
}

.section-eyebrow.center::after {
  animation: ember-line-pulse 4.5s ease-in-out infinite 0.6s;
}

.section-kicker {
  color: var(--accent);
  font-size: clamp(11px, 0.99vw, 12px);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.text-ember {
  position: relative;
  display: inline;
  background: var(--text-ember);
  background-size: 260% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  filter:
    drop-shadow(0 0 8px var(--text-ember-glow-hot))
    drop-shadow(0 1px 0 var(--text-ember-edge-hot));
  animation: ember-shimmer 6s ease-in-out infinite;
}

.display-title .text-ember,
h2 .text-ember {
  -webkit-text-fill-color: transparent;
  color: transparent;
}

@keyframes ember-shimmer {
  0%,
  100% {
    background-position: 0% 50%;
    filter:
      drop-shadow(0 0 6px var(--text-ember-glow))
      drop-shadow(0 1px 0 var(--text-ember-edge));
  }
  50% {
    background-position: 100% 50%;
    filter:
      drop-shadow(0 0 12px var(--text-ember-glow-hot))
      drop-shadow(0 1px 0 var(--text-ember-edge-hot));
  }
}

@keyframes eyebrow-sheen {
  0%,
  100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

@keyframes ember-line-pulse {
  0%,
  100% {
    opacity: 0.55;
    transform: scaleX(1);
    box-shadow: 0 0 6px var(--ember-glow);
  }
  50% {
    opacity: 1;
    transform: scaleX(1.12);
    box-shadow: 0 0 14px var(--ember-glow-hot);
  }
}

@keyframes ivory-sheen {
  0%,
  100% {
    background-position: 0% 40%;
  }
  50% {
    background-position: 100% 60%;
  }
}

h1,
h2,
h3,
p {
  margin: 0;
}

h2 {
  margin-top: 10px;
  font-family: var(--font-display);
  font-size: clamp(29px, 3.78vw, 47px);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.03em;
}

.display-title {
  font-family: var(--font-display);
  font-size: clamp(31px, 4.14vw, 52px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.035em;
  background: var(--display-title);
  background-size: 180% 180%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: ivory-sheen 9s ease-in-out infinite;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  border-bottom: 1px solid transparent;
  background: transparent;
  backdrop-filter: none;
  color: #fff;
  transition: background-color 0.35s var(--ease-out), border-color 0.35s ease, color 0.35s ease,
    backdrop-filter 0.35s ease, box-shadow 0.35s ease;
  z-index: 40;
}

body.nav-open .site-header {
  background: transparent;
  border-bottom-color: transparent;
  backdrop-filter: none;
  box-shadow: none;
}

body.nav-open .site-header .brand img {
  filter: var(--logo-filter);
  opacity: var(--logo-opacity);
}

html[data-theme="light"] body.nav-open .site-header {
  color: var(--fg);
}

.site-header.scrolled {
  background: var(--header-scrolled-bg);
  border-bottom-color: var(--line);
  backdrop-filter: blur(16px) saturate(1.2);
  color: var(--fg);
  box-shadow: var(--header-scrolled-shadow);
}

.site-header.scrolled .brand img {
  filter: var(--logo-filter);
  opacity: var(--logo-opacity);
}

.header-inner {
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}

.brand img {
  width: auto;
  height: 24px;
  transition: filter 0.25s ease, opacity 0.25s ease;
  filter: brightness(0) invert(1);
  opacity: 0.95;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  height: 34px;
  gap: 0;
}

.theme-toggle-btn {
  appearance: none;
  border: 0;
  margin: 0;
  padding: 0 10px;
  background: transparent;
  color: inherit;
  font-family: var(--font-body);
  font-size: clamp(11px, 1.03vw, 13px);
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1;
  cursor: pointer;
  opacity: 0.42;
  transition: opacity 0.25s ease;
}

.theme-toggle-btn:first-child {
  padding-left: 0;
  padding-right: 10px;
  margin-right: 10px;
  border-right: 1px solid color-mix(in srgb, currentColor 22%, transparent);
}

.theme-toggle-btn:last-child {
  padding-left: 0;
  padding-right: 0;
}

.theme-toggle-btn:hover,
.theme-toggle-btn:focus-visible {
  opacity: 0.85;
  outline: none;
}

.theme-toggle-btn.is-active {
  opacity: 1;
}

.desktop-nav {
  display: flex;
  align-items: center;
  height: 34px;
  gap: 32px;
  font-size: clamp(11px, 1.03vw, 13px);
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1;
}

.desktop-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 100%;
  line-height: 1;
  opacity: 0.78;
  transition: opacity 0.25s ease, color 0.25s ease;
}

.desktop-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 6px;
  width: 100%;
  height: 1px;
  background: var(--ember);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease-out);
}

.desktop-nav a:hover {
  opacity: 1;
}

.desktop-nav a:hover::after {
  transform: scaleX(1);
}

.menu-button {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  margin-right: -10px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: inherit;
  cursor: pointer;
  z-index: 40;
  transition: background 0.25s ease;
}

.menu-button:hover,
.menu-button:focus-visible {
  background: var(--menu-hover-bg);
}

.menu-button-bars {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 20px;
  height: 14px;
}

.menu-button-bars span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.5px;
  border-radius: 1px;
  background: currentColor;
  transition: transform 0.35s var(--ease-out), opacity 0.25s ease, top 0.35s var(--ease-out);
}

.menu-button-bars span:nth-child(1) {
  top: 0;
}

.menu-button-bars span:nth-child(2) {
  top: 6px;
}

.menu-button-bars span:nth-child(3) {
  top: 12px;
}

.menu-button[aria-expanded="true"] .menu-button-bars span:nth-child(1) {
  top: 6px;
  transform: rotate(45deg);
}

.menu-button[aria-expanded="true"] .menu-button-bars span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0.4);
}

.menu-button[aria-expanded="true"] .menu-button-bars span:nth-child(3) {
  top: 6px;
  transform: rotate(-45deg);
}

body.nav-open {
  overflow: hidden;
}

.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 35;
  display: flex;
  flex-direction: column;
  padding: calc(68px + 12px) var(--page-gutter) calc(28px + env(safe-area-inset-bottom, 0px));
  background: var(--mobile-nav-bg);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity 0.35s var(--ease-out), visibility 0.35s ease, transform 0.4s var(--ease-out);
}

@media (min-width: 901px) {
  .mobile-nav {
    display: none;
  }

  .hero-glow {
    display: none;
  }
}

.mobile-nav.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.mobile-nav-list {
  list-style: none;
  margin: 0;
  padding: 24px 0 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.mobile-nav-list a {
  display: flex;
  align-items: baseline;
  padding: 18px 4px;
  border-bottom: 1px solid var(--line-strong);
  font-family: var(--font-display);
  font-size: clamp(25px, 7.2vw, 32px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  opacity: 0;
  transform: translateY(12px);
  transition: color 0.25s ease, opacity 0.4s var(--ease-out), transform 0.4s var(--ease-out);
}

.mobile-nav.is-open .mobile-nav-list a {
  opacity: 1;
  transform: translateY(0);
}

.mobile-nav.is-open .mobile-nav-list li:nth-child(1) a {
  transition-delay: 0.05s;
}

.mobile-nav.is-open .mobile-nav-list li:nth-child(2) a {
  transition-delay: 0.1s;
}

.mobile-nav.is-open .mobile-nav-list li:nth-child(3) a {
  transition-delay: 0.15s;
}

.mobile-nav.is-open .mobile-nav-list li:nth-child(4) a {
  transition-delay: 0.2s;
}

.mobile-nav.is-open .mobile-nav-list li:nth-child(5) a {
  transition-delay: 0.25s;
}

.mobile-nav-list a:hover,
.mobile-nav-list a:focus-visible {
  color: var(--accent-soft);
}

.mobile-nav-foot {
  padding-top: 28px;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s var(--ease-out) 0.22s, transform 0.4s var(--ease-out) 0.22s;
}

.mobile-nav.is-open .mobile-nav-foot {
  opacity: 1;
  transform: translateY(0);
}

.mobile-nav-foot .btn {
  margin-top: 0;
  width: 100%;
}

.mobile-nav-note {
  margin-top: 14px;
  font-size: 11px;
  color: var(--fg-faint);
  text-align: center;
}

.desktop-nav a.is-active {
  opacity: 1;
}

.desktop-nav a.is-active::after {
  transform: scaleX(1);
}

#hero-section,
.hero {
  position: relative;
  height: 100svh;
  min-height: 100svh;
  z-index: 0;
  pointer-events: none;
}

.hero-fixed {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: stretch;
  z-index: 1;
  padding-top: 68px;
  overflow: hidden;
  pointer-events: auto;
  background: url("../media/hero.jpg") center/cover no-repeat;
}

.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  transform: scale(1.02);
}

/* Safari/iOS: 자동재생 실패 시 뜨는 기본 재생 버튼 숨김 (JS play 재시도로 대체) */
video::-webkit-media-controls {
  display: none !important;
  -webkit-appearance: none;
}

video::-webkit-media-controls-start-playback-button {
  display: none !important;
  -webkit-appearance: none;
}

video::-webkit-media-controls-enclosure {
  display: none !important;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg, rgba(8, 7, 6, 0.62) 0%, rgba(8, 7, 6, 0.32) 48%, rgba(8, 7, 6, 0.16) 100%),
    linear-gradient(to top, rgba(8, 7, 6, 0.72) 0%, rgba(8, 7, 6, 0.22) 42%, rgba(8, 7, 6, 0.1) 100%);
  z-index: 1;
}

.hero-glow {
  position: absolute;
  inset: auto -8% -18% 12%;
  height: 68%;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
  transform-origin: 50% 90%;
  animation: ember-pulse 8s ease-in-out infinite;
}

.hero-ember {
  position: absolute;
  display: block;
  border-radius: 50%;
  pointer-events: none;
}

.hero-ember--bed {
  inset: 8% -5% -15% -5%;
  background:
    radial-gradient(ellipse 70% 55% at 48% 78%, rgba(74, 20, 36, 0.7), transparent 70%),
    radial-gradient(ellipse 55% 45% at 62% 82%, rgba(107, 26, 46, 0.55), transparent 68%),
    radial-gradient(ellipse 40% 40% at 32% 85%, rgba(58, 16, 28, 0.6), transparent 65%);
  filter: blur(36px);
  animation: ember-bed 9s ease-in-out infinite;
}

.hero-ember--coal {
  width: 38%;
  height: 42%;
  filter: blur(22px);
  mix-blend-mode: screen;
}

.hero-ember--coal-a {
  left: 22%;
  bottom: 6%;
  background: radial-gradient(circle, rgba(158, 43, 69, 0.85), rgba(107, 26, 46, 0.35) 48%, transparent 72%);
  animation: ember-coal 4.2s ease-in-out infinite;
}

.hero-ember--coal-b {
  left: 44%;
  bottom: 2%;
  width: 46%;
  height: 48%;
  background: radial-gradient(circle, rgba(196, 74, 86, 0.75), rgba(139, 30, 58, 0.4) 45%, transparent 70%);
  animation: ember-coal 5.1s ease-in-out infinite 0.6s;
}

.hero-ember--coal-c {
  left: 58%;
  bottom: 10%;
  width: 32%;
  height: 36%;
  background: radial-gradient(circle, rgba(139, 30, 58, 0.8), rgba(74, 20, 36, 0.35) 50%, transparent 72%);
  animation: ember-coal 3.6s ease-in-out infinite 1.1s;
}

.hero-ember--core {
  left: 34%;
  bottom: 8%;
  width: 36%;
  height: 40%;
  background: radial-gradient(circle, rgba(212, 96, 102, 0.7), rgba(158, 43, 69, 0.35) 42%, transparent 68%);
  filter: blur(18px);
  mix-blend-mode: screen;
  animation: ember-core 3.2s ease-in-out infinite;
}

.hero-ember--hot {
  left: 42%;
  bottom: 14%;
  width: 18%;
  height: 22%;
  background: radial-gradient(circle, rgba(255, 196, 170, 0.55), rgba(212, 110, 100, 0.35) 40%, transparent 70%);
  filter: blur(10px);
  mix-blend-mode: soft-light;
  animation: ember-flicker 1.8s ease-in-out infinite;
}

.hero-ember-sparks {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-ember-sparks i {
  position: absolute;
  bottom: 12%;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #f0c4b8;
  box-shadow:
    0 0 6px 1px rgba(212, 96, 102, 0.9),
    0 0 14px 2px rgba(158, 43, 69, 0.55);
  opacity: 0;
  animation: ember-spark 4.8s ease-in-out infinite;
}

.hero-ember-sparks i:nth-child(1) { left: 28%; animation-delay: 0s; animation-duration: 4.2s; }
.hero-ember-sparks i:nth-child(2) { left: 36%; width: 2px; height: 2px; animation-delay: 0.7s; animation-duration: 5.1s; }
.hero-ember-sparks i:nth-child(3) { left: 44%; animation-delay: 1.4s; animation-duration: 4.6s; }
.hero-ember-sparks i:nth-child(4) { left: 52%; width: 2px; height: 2px; animation-delay: 0.3s; animation-duration: 5.4s; }
.hero-ember-sparks i:nth-child(5) { left: 58%; animation-delay: 1.9s; animation-duration: 4s; }
.hero-ember-sparks i:nth-child(6) { left: 64%; width: 2px; height: 2px; animation-delay: 2.4s; animation-duration: 5.8s; }
.hero-ember-sparks i:nth-child(7) { left: 40%; animation-delay: 3.1s; animation-duration: 4.4s; }
.hero-ember-sparks i:nth-child(8) { left: 70%; width: 2px; height: 2px; animation-delay: 1.1s; animation-duration: 5.2s; }

@keyframes ember-pulse {
  0%,
  100% {
    opacity: 0.72;
    transform: translateY(0) scale(1);
  }
  35% {
    opacity: 0.92;
    transform: translateY(-8px) scale(1.04);
  }
  55% {
    opacity: 0.78;
    transform: translateY(-4px) scale(1.01);
  }
  75% {
    opacity: 1;
    transform: translateY(-12px) scale(1.06);
  }
}

@keyframes ember-bed {
  0%,
  100% {
    opacity: 0.7;
    transform: scaleX(1) scaleY(1);
  }
  50% {
    opacity: 1;
    transform: scaleX(1.06) scaleY(1.08);
  }
}

@keyframes ember-coal {
  0%,
  100% {
    opacity: 0.45;
    transform: scale(0.9) translateY(0);
  }
  25% {
    opacity: 0.9;
    transform: scale(1.08) translateY(-4%);
  }
  50% {
    opacity: 0.55;
    transform: scale(0.96) translateY(-1%);
  }
  75% {
    opacity: 1;
    transform: scale(1.12) translateY(-6%);
  }
}

@keyframes ember-core {
  0%,
  100% {
    opacity: 0.5;
    transform: scale(0.92);
  }
  30% {
    opacity: 0.95;
    transform: scale(1.1);
  }
  55% {
    opacity: 0.6;
    transform: scale(0.98);
  }
  80% {
    opacity: 1;
    transform: scale(1.14);
  }
}

@keyframes ember-flicker {
  0%,
  100% {
    opacity: 0.3;
    transform: translate(0, 0) scale(1);
  }
  15% {
    opacity: 0.85;
    transform: translate(3%, -4%) scale(1.25);
  }
  35% {
    opacity: 0.25;
    transform: translate(-2%, 2%) scale(0.85);
  }
  55% {
    opacity: 0.95;
    transform: translate(1%, -6%) scale(1.3);
  }
  75% {
    opacity: 0.4;
    transform: translate(-1%, -1%) scale(1.05);
  }
}

@keyframes ember-spark {
  0% {
    opacity: 0;
    transform: translate3d(0, 8px, 0) scale(0.6);
  }
  12% {
    opacity: 1;
  }
  55% {
    opacity: 0.7;
  }
  100% {
    opacity: 0;
    transform: translate3d(6px, -120px, 0) scale(0.2);
  }
}

.hero-content {
  position: relative;
  color: #fff;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 400px);
  align-items: stretch;
  gap: 28px 40px;
  height: calc(100svh - 68px);
  padding: 4vh 0 28px;
  z-index: 2;
}

.hero-copy {
  width: 100%;
  text-align: left;
  max-width: min(720px, 100%);
  align-self: center;
  animation: hero-rise 0.9s var(--ease-out) both;
}

@keyframes hero-rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero h1 {
  margin-top: 0;
  font-size: clamp(27px, 3.78vw, 47px);
  line-height: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-family: var(--font-display);
}

.hero-title-main {
  display: block;
  font-style: normal;
  font-size: clamp(32px, 4.68vw, 58px);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.04em;
  background: linear-gradient(165deg, #fffef9 0%, #faf3ea 35%, #e8d5c4 68%, #f7ebe0 100%);
  background-size: 180% 180%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  filter:
    drop-shadow(0 1px 1px rgba(0, 0, 0, 0.22))
    drop-shadow(0 12px 28px rgba(0, 0, 0, 0.38));
  animation: ivory-sheen 8s ease-in-out infinite;
}

.hero-title-sub {
  display: block;
  margin-top: 0;
  font-size: clamp(16px, 1.89vw, 23px);
  color: rgba(250, 246, 240, 0.88);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: -0.02em;
  font-family: var(--font-display);
  text-shadow: 0 4px 18px rgba(0, 0, 0, 0.4);
}

.hero-title-em {
  font-weight: 700;
  background: linear-gradient(115deg, #f2b4a8 0%, #d14d5c 24%, #9e2b45 55%, #c45a62 78%, #8b1e3a 100%);
  background-size: 240% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  filter:
    drop-shadow(0 0 12px rgba(158, 43, 69, 0.7))
    drop-shadow(0 2px 10px rgba(74, 20, 36, 0.5));
  animation: ember-shimmer 4.5s ease-in-out infinite;
}

.hero-lead,
.hero-copy > .hero-lead {
  margin-top: 20px;
  color: rgba(250, 246, 240, 0.72);
  max-width: 28rem;
  margin-inline: 0;
  text-align: left;
  font-size: clamp(14px, 1.22vw, 16px);
  font-weight: 400;
  line-height: 1.55;
  letter-spacing: 0.01em;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.28);
}

/* ── Hero strengths: --stack (변경 후, 기본) / --cards (변경 전) ── */
.hero-strengths.hidden {
  display: none !important;
}

.hero-strengths--stack {
  display: grid;
  grid-template-rows: repeat(3, 1fr);
  gap: 6px;
  width: 100%;
  max-width: 400px;
  height: min(100%, calc(100svh - 68px - 8vh));
  max-height: 720px;
  justify-self: end;
  align-self: center;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 24px 56px rgba(0, 0, 0, 0.42);
  animation: hero-rise 1s var(--ease-out) 0.12s both;
}

.hero-strengths--stack .hero-strength {
  position: relative;
  display: block;
  min-height: 0;
  overflow: hidden;
  background: #141210;
  text-align: left;
  isolation: isolate;
}

.hero-strengths--stack .hero-strength.hover-ready {
  cursor: default;
}

.hero-strengths--stack .hero-strength-media {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.hero-strengths--stack .hero-strength-gif {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1.01);
  transition: transform 0.55s var(--ease-out), filter 0.4s ease;
  filter: brightness(0.92) contrast(1.04);
}

video.hero-strength-gif {
  pointer-events: none;
}

.hero-strengths--stack .hero-strength.hover-ready:hover .hero-strength-gif,
.hero-strengths--stack .hero-strength.hover-ready:focus-within .hero-strength-gif {
  transform: scale(1.06);
  filter: brightness(1.02) contrast(1.06);
}

.hero-strengths--stack .hero-strength-meta {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: 28px 16px 14px;
  background: linear-gradient(180deg, transparent 0%, rgba(8, 7, 6, 0.55) 42%, rgba(8, 7, 6, 0.88) 100%);
  pointer-events: none;
}

.hero-strengths--stack .hero-strength h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(16px, 1.53vw, 20px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.45);
}

.hero-strengths--stack .hero-strength p {
  margin: 4px 0 0;
  font-size: clamp(11px, 0.99vw, 12px);
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.35;
  max-width: 18em;
}

.hero-strengths--cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  width: min(100%, 360px);
  justify-self: end;
  align-self: center;
  animation: hero-rise 1s var(--ease-out) 0.15s both;
}

.hero-strengths--cards .hero-strength {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: var(--glass);
  backdrop-filter: blur(14px) saturate(1.15);
  border-radius: clamp(14px, 1.6vw, 18px);
  padding: clamp(10px, 1.1vw, 12px);
  display: flex;
  flex-direction: column;
  min-height: 0;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.12);
  text-align: left;
  transition: box-shadow 0.38s var(--ease-out), border-color 0.38s ease, background 0.38s ease;
  transform: translateY(0);
}

.hero-strengths--cards .hero-strength.hover-ready {
  transition: transform 0.38s var(--ease-out), box-shadow 0.38s var(--ease-out), border-color 0.38s ease,
    background 0.38s ease;
}

.hero-strengths--cards .hero-strength.hover-ready:hover,
.hero-strengths--cards .hero-strength.hover-ready:focus-within {
  transform: translateY(-6px);
  border-color: rgba(196, 90, 98, 0.45);
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.2), rgba(139, 30, 58, 0.12));
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(158, 43, 69, 0.16);
}

.hero-strengths--cards .hero-strength-media {
  position: relative;
  overflow: hidden;
  border-radius: clamp(8px, 0.9vw, 10px);
  height: clamp(108px, 13vw, 148px);
}

.hero-strengths--cards .hero-strength-gif {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0.92;
  transition: opacity 0.38s ease, transform 0.38s var(--ease-out);
}

.hero-strengths--cards .hero-strength.hover-ready:hover .hero-strength-gif,
.hero-strengths--cards .hero-strength.hover-ready:focus-within .hero-strength-gif {
  opacity: 1;
  transform: scale(1.03);
}

.hero-strengths--cards .hero-strength h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(16px, 1.71vw, 20px);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-align: left;
  background: var(--ember-soft);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

.hero-strengths--cards .hero-strength p {
  margin-top: 4px;
  margin-bottom: 0;
  font-size: clamp(11px, 1.13vw, 13px);
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.4;
  text-align: left;
}

.hero-strengths--cards .hero-strength-line {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, rgba(158, 43, 69, 0.55), rgba(255, 255, 255, 0.08));
  margin-top: 8px;
  margin-bottom: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: clamp(24px, 4vw, 40px);
  border-radius: 999px;
  font-weight: 700;
  font-size: clamp(13px, 1.22vw, 14px);
  letter-spacing: -0.01em;
  padding: clamp(13px, 1.5vw, 16px) clamp(22px, 2.6vw, 28px);
}

.cta-arrow {
  display: inline-block;
  transition: transform 0.3s var(--ease-out);
}

.btn:hover .cta-arrow,
.btn:focus-visible .cta-arrow {
  transform: translateX(4px);
}

.btn-dark {
  background: var(--btn-dark-bg);
  color: var(--btn-dark-fg);
  border: 1px solid var(--btn-dark-border);
}

.hero-cta {
  position: relative;
  margin-top: clamp(28px, 4.5vw, 44px);
  border: 0;
  background: #fff;
  color: #161310;
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.28);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s ease, background 0.3s ease, color 0.3s ease;
}

.hero-cta:hover,
.hero-cta:focus-visible {
  transform: translateY(-2px);
  background: #faf6f0;
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.34);
}

.btn-accent {
  position: relative;
  overflow: hidden;
  background: var(--ember-btn);
  color: #fff;
  border: 0;
  box-shadow: 0 16px 40px rgba(107, 26, 46, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.16);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s ease, filter 0.3s ease;
}

.btn-accent::after {
  content: "";
  position: absolute;
  inset: -40% -20%;
  background: radial-gradient(ellipse at 50% 120%, rgba(212, 120, 118, 0.35), transparent 55%);
  opacity: 0.55;
  pointer-events: none;
  animation: ember-btn-glow 4.5s ease-in-out infinite;
}

.btn-accent > * {
  position: relative;
  z-index: 1;
}

.btn-accent:hover,
.btn-accent:focus-visible {
  transform: translateY(-3px);
  filter: brightness(1.06);
  box-shadow: 0 22px 48px rgba(107, 26, 46, 0.5), 0 0 36px rgba(158, 43, 69, 0.28);
}

@keyframes ember-btn-glow {
  0%,
  100% {
    opacity: 0.35;
    transform: translateY(8%);
  }
  50% {
    opacity: 0.75;
    transform: translateY(-4%);
  }
}

.grid-4,
.grid-3 {
  display: grid;
  gap: 18px;
  margin-top: 36px;
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

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

.card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: clamp(16px, 1.8vw, 20px);
  overflow: hidden;
  box-shadow: 0 16px 40px var(--shadow);
  transition: transform 0.35s var(--ease-out), border-color 0.35s ease, box-shadow 0.35s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--card-hover-border);
  box-shadow: 0 24px 48px var(--shadow-deep);
}

.card.center {
  text-align: center;
  padding: clamp(20px, 3.2vw, 30px) clamp(14px, 2vw, 18px);
}

.icon {
  width: clamp(42px, 5.3vw, 52px);
  height: clamp(42px, 5.3vw, 52px);
  border-radius: 50%;
  background: var(--icon-bg);
  display: grid;
  place-items: center;
  margin: 0 auto;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.35) inset, 0 8px 18px var(--shadow);
}

.icon.accent {
  color: var(--accent);
}

.card h3 {
  margin-top: 12px;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.25vw, 23px);
  letter-spacing: -0.02em;
}

.card p {
  margin-top: 8px;
  font-size: clamp(12px, 1.17vw, 14px);
  color: var(--fg-muted);
  line-height: 1.55;
}

.science,
#usage,
#reviews,
.site-footer {
  position: relative;
  z-index: 2;
  isolation: isolate;
}

/* ── Horizontal scroll (sticky + GSAP xPercent) ── */
.horizontal-container {
  --panel-count: 3;
  --scroll-per-panel: 0.9;
  position: relative;
  height: calc(100dvh * (1 + (var(--panel-count) - 1) * var(--scroll-per-panel)));
}

#science.sticky-wrapper,
.sticky-wrapper.science {
  position: sticky;
  top: 0;
  height: 100dvh;
  max-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  z-index: 1;
  background-color: var(--science-bg-color);
  background-image: var(--science-bg-image);
  color: var(--science-fg);
}

#science.sticky-wrapper::before,
.sticky-wrapper.science::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--science-scan) 1px, transparent 1px);
  background-size: 100% 5px;
  opacity: 0.28;
  pointer-events: none;
  z-index: 0;
  mask-image: linear-gradient(180deg, transparent, #000 20%, #000 80%, transparent);
}

.science-stage {
  position: relative;
  z-index: 1;
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: clamp(36px, 5vh, 56px);
  padding-top: 68px;
  padding-bottom: clamp(24px, 4vh, 40px);
  width: 100%;
}

.science-intro {
  position: relative;
  max-width: 40rem;
  flex-shrink: 0;
}

.science-intro h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(31px, 4.32vw, 54px);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -0.035em;
  color: var(--science-heading);
  text-wrap: balance;
}

html[data-theme="dark"] .science-intro h2 {
  background: linear-gradient(165deg, #fffef8 0%, #f5ebe0 40%, #dcc8b8 100%);
  background-size: 180% 180%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: ivory-sheen 9s ease-in-out infinite;
}

html[data-theme="dark"] .science-intro h2 .text-ember {
  -webkit-text-fill-color: transparent;
}

.horizontal-viewport {
  flex: 0 0 auto;
  overflow: hidden;
  width: 100%;
  height: auto;
  container-type: inline-size;
  container-name: science-viewport;
}

.horizontal-track {
  --panel-count: 3;
  --panel-gap: clamp(24px, 3vw, 48px);
  --panel-space: clamp(64px, 8vw, 120px);
  --edge: max(var(--page-gutter), calc((100cqi - var(--max)) / 2));
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: var(--panel-space);
  height: auto;
  width: max-content;
  padding-inline: var(--edge);
  box-sizing: content-box;
  will-change: transform;
  backface-visibility: hidden;
  transform: translateZ(0);
}

.horizontal-track .panel {
  flex: 0 0 auto;
  width: max-content;
  max-width: min(100cqi - (var(--page-gutter) * 2), var(--max));
  min-width: 0;
  height: auto;
  display: flex;
  align-items: center;
}

.panel-inner {
  --panel-gap: clamp(24px, 3vw, 48px);
  width: max-content;
  max-width: 100%;
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--panel-gap);
}

.science-copy {
  position: relative;
  flex: 0 1 auto;
  width: max-content;
  max-width: 22rem;
  padding-left: 16px;
}

.science-copy::before {
  content: "";
  position: absolute;
  top: 0.2em;
  left: 0;
  width: 2px;
  height: calc(100% - 0.2em);
  background: var(--ember);
  border-radius: 1px;
  box-shadow: 0 0 12px var(--ember-glow);
  animation: ember-line-pulse 5s ease-in-out infinite;
  transform-origin: center top;
}

.science-heading {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.science-heading h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 2.52vw, 32px);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.025em;
  color: var(--science-heading);
  background: linear-gradient(
    115deg,
    var(--science-heading) 0%,
    var(--accent-soft) 42%,
    var(--science-heading) 78%
  );
  background-size: 220% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: eyebrow-sheen 8s ease-in-out infinite;
}

.science-copy p {
  margin: 12px 0 0;
  font-size: clamp(14px, 1.4vw, 18px);
  line-height: 1.45;
  font-weight: 400;
  color: var(--science-copy);
}

.science-br {
  display: none;
}

.science-media {
  flex: 0 1 auto;
  margin: 0;
  position: relative;
  overflow: hidden;
  width: clamp(280px, 58vw, 920px);
  max-width: min(68cqi, calc(100cqi - 22rem - var(--panel-gap) - (var(--page-gutter) * 2)));
  height: auto;
  aspect-ratio: 16 / 10;
  background: var(--science-media-bg);
  border-radius: clamp(4px, 0.6vw, 8px);
  box-shadow: 0 28px 70px var(--shadow-deep), 0 0 0 1px var(--line);
}

.science-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(18, 16, 14, 0.22), transparent 30%),
    linear-gradient(180deg, transparent 50%, rgba(18, 16, 14, 0.35)),
    radial-gradient(ellipse at 70% 80%, rgba(158, 43, 69, 0.16), transparent 45%);
  pointer-events: none;
}

.science-media img,
.science-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(0.9) contrast(1.06);
  transition: filter 0.5s ease, transform 0.7s var(--ease-out);
  pointer-events: none;
}

.panel:hover .science-media img,
.panel:hover .science-media video {
  filter: saturate(1) contrast(1.08);
  transform: scale(1.03);
}

@media (max-width: 900px) {
  .horizontal-container {
    height: auto;
  }

  .science-br {
    display: inline;
  }

  #science.sticky-wrapper,
  .sticky-wrapper.science {
    position: relative;
    height: auto;
    max-height: none;
    overflow: visible;
  }

  .science-stage {
    padding-top: clamp(72px, 10vw, 96px);
    padding-bottom: clamp(56px, 12vw, 88px);
    gap: clamp(28px, 5vw, 40px);
  }

  .horizontal-viewport {
    overflow: visible;
  }

  .horizontal-track {
    display: grid;
    gap: clamp(40px, 8vw, 56px);
    width: 100%;
    height: auto;
    padding-inline: 0;
    box-sizing: border-box;
    transform: none !important;
  }

  .horizontal-track .panel {
    width: 100%;
    max-width: none;
    flex: none;
    height: auto;
  }

  .panel-inner {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    max-width: none;
    gap: var(--panel-gap, clamp(24px, 3vw, 48px));
  }

  .science-copy {
    max-width: none;
    width: auto;
  }

  .science-media {
    width: 100%;
    max-width: none;
    height: auto;
    aspect-ratio: 16 / 10;
    border-radius: 0;
  }
}

.center-title {
  text-align: center;
}

.page-lead.center {
  text-align: center;
  margin-inline: auto;
}

#reviews {
  background: var(--reviews-bg);
  overflow: hidden;
}

.review-marquee-note {
  margin: 10px auto 0;
  text-align: center;
  font-size: clamp(12px, 1.08vw, 14px);
  letter-spacing: 0.02em;
  color: var(--review-note);
}

.review-store-link {
  margin: 28px 0 0;
  text-align: center;
}

.review-store-link a {
  display: inline-block;
  color: var(--review-link);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(158, 43, 69, 0.35);
  padding-bottom: 8px;
  transform: scale(1);
  transform-origin: center bottom;
  transition:
    color 0.3s ease,
    border-color 0.3s ease,
    transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.review-store-link a:hover {
  color: var(--review-link-hover);
  border-color: rgba(212, 160, 171, 0.7);
  transform: scale(1.06);
}

/* ── Review capture marquee / horizontal drag ── */
.review-marquee {
  margin-top: 24px;
  overflow: hidden;
  cursor: grab;
  touch-action: pan-y;
  padding-block: 32px;
  mask-image: linear-gradient(90deg, transparent, #000 4%, #000 96%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 4%, #000 96%, transparent);
}

.review-marquee.is-dragging {
  cursor: grabbing;
  touch-action: none;
}

.review-marquee-track {
  display: flex;
  width: max-content;
  gap: 0;
  will-change: transform;
  animation: review-marquee-scroll 55s linear infinite;
}

.review-marquee.is-js .review-marquee-track {
  animation: none;
}

.review-marquee:hover .review-marquee-track,
.review-marquee:focus-within .review-marquee-track {
  animation-play-state: paused;
}

@media (hover: none) {
  .review-marquee:hover .review-marquee-track,
  .review-marquee:focus-within .review-marquee-track {
    animation-play-state: running;
  }
}

.review-marquee-set {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding-inline: 8px;
}

.review-capture {
  position: relative;
  z-index: 0;
  margin: 0;
  flex: 0 0 auto;
  width: min(320px, 42vw);
  border-radius: 14px;
  overflow: visible;
  background: transparent;
  border: 0;
  box-shadow: none;
  transform: scale(1);
  transform-origin: center top;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.review-capture img {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: top;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #fff;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
  transition:
    box-shadow 0.4s ease,
    border-color 0.3s ease;
}

@media (hover: hover) and (pointer: fine) {
  .review-capture:hover {
    z-index: 5;
    transform: scale(1.06);
  }

  .review-capture:hover img {
    border-color: rgba(196, 90, 98, 0.4);
    box-shadow: 0 28px 56px rgba(0, 0, 0, 0.5);
  }
}

@keyframes review-marquee-scroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

@media (max-width: 720px) {
  .review-marquee {
    padding-block: 16px;
    mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
  }

  .review-marquee-track {
    animation-duration: 45s;
  }

  .review-marquee-set {
    gap: 12px;
    padding-inline: 6px;
  }

  .review-capture {
    width: min(72vw, 280px);
  }

  .review-capture img {
    border-radius: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .review-marquee-track {
    animation: none;
  }

  .review-capture {
    transition: none;
  }
}

/* ── YouTube Shorts (9:16 coverflow) ── */
.shorts-block {
  margin-top: clamp(40px, 6vw, 64px);
  padding-bottom: 8px;
}

.shorts-rail {
  position: relative;
  width: 100%;
  max-width: 1180px;
  margin: 28px auto 0;
}

.shorts-rail-viewport {
  position: relative;
  z-index: 1;
  overflow: hidden;
  padding: 12px 8px 44px;
  touch-action: pan-y;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
}

.shorts-rail-viewport.is-dragging {
  cursor: grabbing;
}

.shorts-rail-track {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: clamp(10px, 1.6vw, 16px);
  width: max-content;
  will-change: transform;
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.shorts-rail-viewport.is-dragging .shorts-rail-track {
  transition: none;
}

.short-card {
  margin: 0;
  flex: 0 0 auto;
  width: clamp(168px, 34vw, 250px);
  opacity: 0.72;
  transform: scale(0.9);
  transform-origin: center center;
  transition:
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.35s ease;
}

.short-card.is-active {
  width: clamp(230px, 52vw, 340px);
  opacity: 1;
  transform: scale(1);
  z-index: 2;
}

.short-frame {
  position: relative;
  aspect-ratio: 9 / 16;
  border-radius: clamp(14px, 1.6vw, 18px);
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 55% at 50% 28%, rgba(158, 43, 69, 0.28), transparent 62%),
    linear-gradient(165deg, #2a1c20 0%, #161214 48%, #1c1416 100%);
  border: 0;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
  transition: box-shadow 0.35s ease;
}

.short-card.is-active .short-frame {
  box-shadow: 0 26px 56px rgba(0, 0, 0, 0.4);
}

.short-thumb {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
}

.short-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, transparent 48%, rgba(0, 0, 0, 0.42) 100%);
  pointer-events: none;
}

.short-play {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  place-items: center;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  color: inherit;
}

.short-play:disabled {
  cursor: default;
}

.short-play-icon {
  display: grid;
  place-items: center;
  width: clamp(48px, 6vw, 58px);
  height: clamp(48px, 6vw, 58px);
  border-radius: 50%;
  background: rgba(16, 14, 15, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(8px);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
  transition:
    transform 0.3s cubic-bezier(0.22, 1, 0.36, 1),
    background 0.25s ease,
    border-color 0.25s ease;
}

.short-card.is-active .short-play-icon {
  width: clamp(54px, 7vw, 64px);
  height: clamp(54px, 7vw, 64px);
}

.short-play-icon::before {
  content: "";
  width: 0;
  height: 0;
  margin-left: 3px;
  border-style: solid;
  border-width: 7px 0 7px 12px;
  border-color: transparent transparent transparent #f7f3eb;
}

.short-card:not(.is-ready) .short-play-icon {
  opacity: 0.72;
}

.short-card.is-playing .short-play,
.short-card.is-playing .short-thumb,
.short-card.is-playing .short-frame::before {
  display: none;
}

.short-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.short-label {
  margin: 12px 0 0;
  font-size: clamp(12px, 1.1vw, 14px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.35;
  color: var(--fg-muted);
  text-align: center;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (hover: hover) and (pointer: fine) {
  .short-card.is-ready.is-active:hover .short-play-icon {
    transform: scale(1.08);
    background: rgba(158, 43, 69, 0.72);
    border-color: rgba(240, 207, 200, 0.45);
  }
}

@media (max-width: 720px) {
  .shorts-rail {
    width: calc(100% + 32px);
    max-width: none;
    margin-inline: -16px;
  }

  .short-card {
    width: 48vw;
  }

  .short-card.is-active {
    width: 66vw;
  }
}

@media (prefers-reduced-motion: reduce) {
  .shorts-rail-track,
  .short-card {
    transition: none;
    animation: none;
  }
}

html[data-theme="light"] .short-frame {
  background:
    radial-gradient(ellipse 80% 55% at 50% 28%, rgba(158, 43, 69, 0.18), transparent 62%),
    linear-gradient(165deg, #3a282c 0%, #24181c 48%, #2c1e22 100%);
  box-shadow: 0 16px 36px rgba(42, 28, 32, 0.12);
}

html[data-theme="light"] .short-card.is-active .short-frame {
  box-shadow: 0 22px 44px rgba(42, 28, 32, 0.16);
}

html[data-theme="light"] .short-label {
  color: rgba(42, 28, 32, 0.62);
}

.tabs {
  width: min(100%, 400px);
  margin: 32px auto 0;
  background: var(--tab-track);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px;
  display: flex;
  backdrop-filter: blur(8px);
}

.tab {
  flex: 1;
  border: 0;
  border-radius: 999px;
  background: transparent;
  padding: 13px 12px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--tab-idle);
  cursor: pointer;
  transition: color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
}

.tab.active {
  background: var(--ember-btn);
  color: #fff;
  box-shadow: 0 8px 22px rgba(107, 26, 46, 0.32);
}

.video-embed {
  position: relative;
  width: min(100%, 960px);
  margin: 36px auto 0;
  aspect-ratio: 16 / 9;
  border-radius: clamp(16px, 1.8vw, 22px);
  overflow: hidden;
  background: #000;
  border: 1px solid var(--line);
  box-shadow: 0 28px 60px rgba(0, 0, 0, 0.4);
}

.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.card-body {
  padding: clamp(14px, 2.1vw, 20px);
}

.step {
  color: var(--accent);
  font-size: clamp(10px, 0.99vw, 12px);
  font-weight: 700;
}

.caption {
  padding: clamp(12px, 1.7vw, 16px);
  font-size: clamp(12px, 1.13vw, 14px);
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: -0.015em;
  color: var(--caption);
}

#recipePanel .caption {
  margin-top: 0;
  padding: 0;
  color: var(--fg);
}

#recipePanel .card-note {
  margin-top: 6px;
  font-size: clamp(11px, 0.99vw, 12px);
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--fg-muted);
}

.pricing-cta {
  position: relative;
  overflow: hidden;
  margin-top: 72px;
  background: var(--pricing-bg);
  color: var(--pricing-fg);
  border: 1px solid var(--pricing-border);
  border-radius: clamp(20px, 2.6vw, 28px);
  text-align: center;
  padding: clamp(44px, 6.5vw, 72px) clamp(20px, 3vw, 32px) clamp(56px, 7vw, 84px);
  box-shadow: 0 32px 80px var(--shadow-deep), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.pricing-cta > :not(.pricing-glow) {
  position: relative;
  z-index: 2;
}

.pricing-cta::before {
  content: "";
  position: absolute;
  inset: -40% 20% auto;
  height: 60%;
  background: radial-gradient(ellipse at center, var(--ember-glow-hot), transparent 70%);
  pointer-events: none;
  animation: ember-pulse 8s ease-in-out infinite;
  z-index: 0;
}

/* Pricing 하단: hero-glow와 같은 숯불 재 + 위로 타오르는 불티 */
.pricing-glow {
  position: absolute;
  inset: auto -4% -28% -4%;
  height: 72%;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
  transform-origin: 50% 95%;
  animation: ember-pulse 8s ease-in-out infinite;
}

.pricing-ember {
  position: absolute;
  display: block;
  border-radius: 50%;
  pointer-events: none;
}

.pricing-ember--bed {
  inset: 18% -8% -20% -8%;
  background:
    radial-gradient(ellipse 72% 55% at 50% 82%, rgba(74, 20, 36, 0.78), transparent 70%),
    radial-gradient(ellipse 48% 42% at 28% 88%, rgba(107, 26, 46, 0.55), transparent 68%),
    radial-gradient(ellipse 44% 40% at 72% 86%, rgba(58, 16, 28, 0.6), transparent 65%);
  filter: blur(28px);
  animation: ember-bed 9s ease-in-out infinite;
}

.pricing-ember--coal {
  width: 34%;
  height: 38%;
  filter: blur(18px);
  mix-blend-mode: screen;
}

.pricing-ember--coal-a {
  left: 18%;
  bottom: 4%;
  background: radial-gradient(circle, rgba(158, 43, 69, 0.9), rgba(107, 26, 46, 0.38) 48%, transparent 72%);
  animation: ember-coal 4.2s ease-in-out infinite;
}

.pricing-ember--coal-b {
  left: 38%;
  bottom: 0;
  width: 42%;
  height: 44%;
  background: radial-gradient(circle, rgba(196, 74, 86, 0.8), rgba(139, 30, 58, 0.42) 45%, transparent 70%);
  animation: ember-coal 5.1s ease-in-out infinite 0.6s;
}

.pricing-ember--coal-c {
  left: 58%;
  bottom: 6%;
  width: 30%;
  height: 34%;
  background: radial-gradient(circle, rgba(139, 30, 58, 0.85), rgba(74, 20, 36, 0.38) 50%, transparent 72%);
  animation: ember-coal 3.6s ease-in-out infinite 1.1s;
}

.pricing-ember--core {
  left: 32%;
  bottom: 4%;
  width: 36%;
  height: 38%;
  background: radial-gradient(circle, rgba(212, 96, 102, 0.72), rgba(158, 43, 69, 0.36) 42%, transparent 68%);
  filter: blur(16px);
  mix-blend-mode: screen;
  animation: ember-core 3.2s ease-in-out infinite;
}

.pricing-ember--hot {
  left: 44%;
  bottom: 10%;
  width: 16%;
  height: 20%;
  background: radial-gradient(circle, rgba(255, 196, 170, 0.58), rgba(212, 110, 100, 0.36) 40%, transparent 70%);
  filter: blur(9px);
  mix-blend-mode: soft-light;
  animation: ember-flicker 1.8s ease-in-out infinite;
}

.pricing-ember-sparks {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.pricing-ember-sparks i {
  position: absolute;
  bottom: 10%;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #f0c4b8;
  box-shadow:
    0 0 6px 1px rgba(212, 96, 102, 0.95),
    0 0 14px 2px rgba(158, 43, 69, 0.55),
    0 0 22px 4px rgba(196, 90, 98, 0.28);
  opacity: 0;
  animation: pricing-ember-spark 4.6s ease-in-out infinite;
  will-change: transform, opacity;
}

.pricing-ember-sparks i:nth-child(1)  { left: 18%; animation-delay: 0s;    animation-duration: 4.1s; }
.pricing-ember-sparks i:nth-child(2)  { left: 26%; width: 2px; height: 2px; animation-delay: 0.55s; animation-duration: 5s; }
.pricing-ember-sparks i:nth-child(3)  { left: 34%; animation-delay: 1.1s;  animation-duration: 4.4s; }
.pricing-ember-sparks i:nth-child(4)  { left: 42%; width: 2px; height: 2px; animation-delay: 0.25s; animation-duration: 5.3s; }
.pricing-ember-sparks i:nth-child(5)  { left: 48%; animation-delay: 1.7s;  animation-duration: 3.9s; }
.pricing-ember-sparks i:nth-child(6)  { left: 54%; width: 2px; height: 2px; animation-delay: 0.85s; animation-duration: 5.6s; }
.pricing-ember-sparks i:nth-child(7)  { left: 60%; animation-delay: 2.2s;  animation-duration: 4.3s; }
.pricing-ember-sparks i:nth-child(8)  { left: 66%; width: 2px; height: 2px; animation-delay: 1.35s; animation-duration: 5.1s; }
.pricing-ember-sparks i:nth-child(9)  { left: 72%; animation-delay: 0.4s;  animation-duration: 4.7s; }
.pricing-ember-sparks i:nth-child(10) { left: 78%; width: 2px; height: 2px; animation-delay: 2.6s; animation-duration: 5.4s; }
.pricing-ember-sparks i:nth-child(11) { left: 38%; animation-delay: 3s;    animation-duration: 4.2s; }
.pricing-ember-sparks i:nth-child(12) { left: 70%; width: 2px; height: 2px; animation-delay: 1.9s;  animation-duration: 4.9s; }

@keyframes pricing-ember-spark {
  0% {
    opacity: 0;
    transform: translate3d(0, 10px, 0) scale(0.55);
  }
  10% {
    opacity: 1;
  }
  45% {
    opacity: 0.85;
  }
  75% {
    opacity: 0.35;
  }
  100% {
    opacity: 0;
    transform: translate3d(8px, -150px, 0) scale(0.15);
  }
}

.pricing-eyebrow {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin: 0 0 16px;
  font-size: clamp(10px, 0.95vw, 12px);
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  background: linear-gradient(105deg, #e8c4cb 0%, #d14d5c 50%, #e8c4cb 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: eyebrow-sheen 7s ease-in-out infinite;
}

.pricing-eyebrow::before,
.pricing-eyebrow::after {
  content: "";
  flex: 0 0 auto;
  width: clamp(18px, 2.5vw, 28px);
  height: 1px;
  border-radius: 1px;
  background: linear-gradient(90deg, transparent, #d14d5c, transparent);
  box-shadow: 0 0 10px rgba(196, 90, 98, 0.45);
  animation: ember-line-pulse 4.5s ease-in-out infinite;
}

.pricing-eyebrow::after {
  animation-delay: 0.6s;
}

.pricing-cta h2 {
  position: relative;
  margin: 0;
  text-align: center;
  font-size: clamp(25px, 3.6vw, 43px);
  line-height: 1.2;
  background: linear-gradient(165deg, #fffef8 0%, #f5ebe0 45%, #e0cfc0 100%);
  background-size: 180% 180%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  animation: ivory-sheen 9s ease-in-out infinite;
}

.pricing-cta h2 .text-ember {
  -webkit-text-fill-color: transparent;
}

.pricing-cta .btn {
  position: relative;
  margin-top: 28px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--footer-bg);
  padding: clamp(48px, 6vw, 72px) 0;
}

.site-footer .brand img {
  filter: var(--logo-filter);
  opacity: 0.9;
  height: 22px;
}

.site-footer p {
  margin-top: 12px;
  color: var(--fg-muted);
  font-size: clamp(12px, 1.13vw, 14px);
  line-height: 1.55;
  max-width: 36rem;
}

.copyright {
  font-size: clamp(10px, 0.95vw, 12px);
  letter-spacing: 0.04em;
  opacity: 0.75;
}

.hidden {
  display: none;
}

.feature-single {
  margin-top: 28px;
  max-width: 360px;
}

@media (max-width: 900px) {
  .desktop-nav {
    display: none;
  }
  .menu-button {
    display: block;
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: 1fr;
  }
  #hero-section,
  .hero {
    height: auto;
    min-height: 100svh;
    pointer-events: auto;
  }

  .hero-fixed {
    position: relative;
    inset: auto;
    width: 100%;
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
  }

  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(8, 7, 6, 0.35) 0%, rgba(8, 7, 6, 0.18) 38%, rgba(8, 7, 6, 0.78) 100%),
      linear-gradient(105deg, rgba(8, 7, 6, 0.45) 0%, rgba(8, 7, 6, 0.12) 100%);
  }

  .hero-glow {
    inset: auto -5% -8% 0;
    height: 42%;
    opacity: 0.75;
  }

  .hero-ember-sparks i:nth-child(n + 5) {
    display: none;
  }

  .pricing-glow {
    inset: auto -6% -18% -6%;
    height: 58%;
  }

  .pricing-ember-sparks i:nth-child(n + 7) {
    display: none;
  }

  .hero-content {
    height: auto;
    grid-template-columns: 1fr;
    align-items: stretch;
    gap: 22px;
    width: min(100% - (var(--page-gutter) * 2), var(--max));
    margin-inline: auto;
    padding: 20px 0 calc(28px + env(safe-area-inset-bottom, 0px));
  }

  .hero-copy {
    max-width: none;
    width: 100%;
    align-self: end;
  }

  .hero h1 {
    gap: 12px;
  }

  .hero-title-main {
    font-size: clamp(27px, 7.02vw, 36px);
    letter-spacing: -0.035em;
  }

  .hero-title-sub {
    font-size: clamp(14px, 3.6vw, 15px);
    font-weight: 500;
    line-height: 1.4;
    color: rgba(255, 255, 255, 0.85);
  }

  .hero-copy > .hero-lead {
    display: block;
    margin-top: 12px;
    font-size: 12px;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.58);
    max-width: 22rem;
  }

  .hero-cta {
    display: none;
  }

  .hero-strengths--stack {
    margin-top: 0;
    display: grid;
    grid-template-columns: 1.15fr 1fr 1fr;
    grid-template-rows: auto;
    align-content: start;
    align-self: stretch;
    gap: 6px;
    width: 100%;
    max-width: none;
    height: auto;
    max-height: none;
    justify-self: stretch;
    border-radius: 0;
    overflow: visible;
    box-shadow: none;
  }

  .hero-strengths--stack .hero-strength {
    min-height: 0;
    aspect-ratio: auto;
    height: clamp(112px, 30vw, 128px);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.28);
  }

  .hero-strengths--stack .hero-strength:first-child {
    grid-column: auto;
    height: clamp(112px, 30vw, 128px);
  }

  .hero-strengths--stack .hero-strength-meta {
    padding: 18px 8px 8px;
  }

  .hero-strengths--stack .hero-strength:first-child .hero-strength-meta {
    padding: 18px 8px 8px;
  }

  .hero-strengths--stack .hero-strength h3,
  .hero-strengths--stack .hero-strength:first-child h3 {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: -0.01em;
  }

  .hero-strengths--stack .hero-strength p,
  .hero-strengths--stack .hero-strength:first-child p {
    display: none;
  }

  .hero-strengths--cards {
    margin-top: 4px;
    grid-template-columns: 1fr;
    width: 100%;
    justify-self: stretch;
  }

  .hero-strengths--cards .hero-strength-media {
    height: 120px;
  }
}

@media (max-height: 820px) and (min-width: 901px) {
  .hero-content {
    padding: 2.5vh 0 20px;
  }

  .hero-strengths--stack {
    max-height: calc(100svh - 68px - 5vh);
  }

  .hero-title-main {
    font-size: clamp(29px, 4.14vw, 47px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-glow,
  .hero-ember,
  .hero-ember-sparks i,
  .pricing-glow,
  .pricing-ember,
  .pricing-ember-sparks i,
  .hero-copy,
  .hero-strengths,
  .hero-title-main,
  .hero-title-em,
  .text-ember,
  .display-title,
  .section-eyebrow,
  .section-eyebrow.center::before,
  .section-eyebrow.center::after,
  .science-heading h3,
  .science-copy::before,
  .pricing-eyebrow,
  .pricing-eyebrow::before,
  .pricing-eyebrow::after,
  .pricing-cta h2,
  .btn-accent::after,
  .pricing-cta::before,
  html[data-theme="dark"] .science-intro h2 {
    animation: none;
  }

  .hero-ember-sparks,
  .pricing-ember-sparks {
    display: none;
  }

  .hero-strength-gif {
    transition: none;
  }
}

/* ── Light mode: ivory ↔ white section rhythm ── */
html[data-theme="light"] #science.sticky-wrapper,
html[data-theme="light"] .sticky-wrapper.science {
  background-color: #fffcf7;
  background-image: none;
  box-shadow:
    inset 0 1px 0 rgba(42, 28, 32, 0.06),
    inset 0 -1px 0 rgba(42, 28, 32, 0.06);
}

html[data-theme="light"] #science.sticky-wrapper::before,
html[data-theme="light"] .sticky-wrapper.science::before {
  opacity: 0.18;
}

html[data-theme="light"] #usage.section-muted {
  background:
    radial-gradient(ellipse 70% 50% at 20% 0%, rgba(158, 43, 69, 0.07), transparent 55%),
    linear-gradient(180deg, #f5f0e8 0%, #efe9df 100%);
}

html[data-theme="light"] #reviews {
  background: #fffcf7;
  box-shadow:
    inset 0 1px 0 rgba(42, 28, 32, 0.06),
    inset 0 -1px 0 rgba(42, 28, 32, 0.04);
}

html[data-theme="light"] #reviews .card,
html[data-theme="light"] #usage .card {
  background: #fffcf7;
  border-color: rgba(42, 28, 32, 0.08);
  box-shadow: 0 12px 32px rgba(74, 20, 36, 0.07);
}

html[data-theme="light"] #usage .tabs {
  background: rgba(255, 252, 247, 0.7);
  border-color: rgba(42, 28, 32, 0.1);
}

html[data-theme="light"] .site-footer {
  background: linear-gradient(180deg, #f5f0e8 0%, #efe9df 100%);
  border-top-color: rgba(139, 30, 58, 0.12);
}

html[data-theme="light"] .science-media {
  background: #f0ebe4;
  box-shadow: 0 24px 56px rgba(42, 28, 32, 0.1), 0 0 0 1px rgba(42, 28, 32, 0.06);
}

html[data-theme="light"] .review-capture img {
  box-shadow: 0 16px 36px rgba(42, 28, 32, 0.1);
  border-color: rgba(42, 28, 32, 0.08);
}