/* Ryan Arche Server — Components v2.0 */
/* "Liquid Precision" aesthetic */

/* ===== NAVIGATION ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  padding: var(--space-md) var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
  transition:
    background var(--duration-normal) var(--ease-out),
    border-color var(--duration-normal) var(--ease-out),
    transform var(--duration-normal) var(--ease-out);
  border-bottom: 1px solid transparent;
}

.nav--solid {
  background: rgba(10, 10, 15, 0.97);
  border-bottom-color: var(--border);
}

.nav--hidden {
  transform: translateY(-100%);
}

.nav__logo img {
  height: 36px;
  width: auto;
  filter: invert(1) brightness(2);
  display: block;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  flex: 1;
  justify-content: center;
}

.nav__link {
  font-size: 14px;
  font-weight: var(--weight-semibold);
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  transition: color var(--duration-fast);
  position: relative;
  white-space: nowrap;
  padding: 6px 4px;
}

.nav__link:hover,
.nav__link--active {
  color: var(--text-primary);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--cyan);
  transition: width var(--duration-normal) var(--ease-out);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

/* Nav product dropdown */
.nav__dropdown {
  position: relative;
}

.nav__dropdown-menu {
  position: absolute;
  top: calc(100% + 16px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-sm);
  min-width: 160px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity var(--duration-fast),
    visibility var(--duration-fast),
    transform var(--duration-fast);
  transform: translateX(-50%) translateY(-6px);
}

.nav__dropdown:hover .nav__dropdown-menu,
.nav__dropdown:focus-within .nav__dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.nav__dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 8px 14px;
  border-radius: var(--radius-md);
  font-size: var(--text-small);
  color: var(--text-secondary);
  transition: background var(--duration-fast), color var(--duration-fast);
}

.nav__dropdown-item:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

.nav__dropdown-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Language toggle */
.nav__right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-shrink: 0;
}

.lang-toggle {
  display: flex;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  padding: 2px;
  border: 1px solid var(--border);
  gap: 1px;
}

.lang-toggle__btn {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: var(--weight-semibold);
  color: var(--text-tertiary);
  transition: all var(--duration-fast);
  letter-spacing: var(--tracking-wide);
}

.lang-toggle__btn--active {
  background: var(--accent);
  color: #fff;
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 6px;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.nav__hamburger span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--text-primary);
  transition:
    transform var(--duration-normal) var(--ease-out),
    opacity var(--duration-fast);
  border-radius: 1px;
}

.nav__hamburger--open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav__hamburger--open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav__hamburger--open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile fullscreen menu */
.nav__mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  top: 60px;
  background: rgba(10, 10, 15, 0.99);
  padding: var(--space-2xl) var(--container-padding);
  flex-direction: column;
  gap: var(--space-lg);
  z-index: calc(var(--z-nav) - 1);
  overflow-y: auto;
}

.nav__mobile-menu--open {
  display: flex;
}

.nav__mobile-link {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: var(--weight-bold);
  color: var(--text-secondary);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  transition: color var(--duration-fast);
}

.nav__mobile-link:hover {
  color: var(--cyan);
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__hamburger { display: flex; }
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 13px 28px;
  font-family: var(--font-primary);
  font-size: var(--text-small);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-out);
  white-space: nowrap;
  cursor: pointer;
  letter-spacing: var(--tracking-wide);
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--accent);
  color: #fff;
  border: 1px solid transparent;
}

.btn--primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 0 32px var(--accent-glow), 0 4px 16px rgba(0,0,0,0.3);
  transform: translateY(-1px);
}

.btn--outline {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
}

.btn--outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: var(--cyan-subtle);
}

.btn--ghost {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
}

.btn--ghost:hover {
  color: var(--text-primary);
  border-color: var(--border);
}

.btn--cyan {
  background: transparent;
  border: 1px solid var(--cyan);
  color: var(--cyan);
}

.btn--cyan:hover {
  background: var(--cyan-subtle);
  box-shadow: 0 0 24px var(--cyan-glow);
}

.btn--lg {
  padding: 20px 48px;
  font-size: 1.125rem;
}

.btn--sm {
  padding: 8px 18px;
  font-size: var(--text-xs);
}

.btn--full {
  width: 100%;
}

/* ===== HERO ===== */
.hero__eyebrow {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
}

.hero__eyebrow::before,
.hero__eyebrow::after {
  content: '';
  display: inline-block;
  width: 32px;
  height: 1px;
  background: var(--cyan);
  opacity: 0.5;
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: var(--weight-extrabold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tighter);
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: var(--space-xl);
}

.hero__subtitle {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: var(--weight-semibold);
  color: #ffffff;
  opacity: 1;
  margin-bottom: var(--space-lg);
  letter-spacing: var(--tracking-wide);
  text-shadow: 0 2px 12px rgba(0,0,0,0.6);
}

.hero__description {
  font-size: clamp(1rem, 1.8vw, 1.125rem);
  color: rgba(255, 255, 255, 0.85);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-3xl);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero__actions {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4xl);
}

.hero__scroll-indicator {
  position: absolute;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  opacity: 0.4;
  transition: opacity var(--duration-fast);
}

.hero__scroll-indicator:hover {
  opacity: 0.8;
}

.hero__scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--cyan), transparent);
  position: relative;
  overflow: hidden;
}

.hero__scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, transparent, var(--cyan));
  animation: scrollDrop 2s ease-in-out infinite;
}

@keyframes scrollDrop {
  0%   { top: -100%; opacity: 1; }
  100% { top: 100%;  opacity: 0; }
}

.hero__scroll-label {
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

/* ===== PRODUCT CARDS (Lineup Section) ===== */
.product-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}
@media (max-width: 768px) {
  .product-cards {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }
}

.product-card {
  background: linear-gradient(160deg, var(--bg-card) 0%, var(--bg-primary) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  /* Isolate layout/paint for cheaper recomposite during stagger reveals */
  contain: layout paint;
  transition:
    transform var(--duration-normal) var(--ease-out),
    border-color var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out);
  display: flex;
  flex-direction: column;
  position: relative;
}

.product-card:hover {
  transform: translateY(-4px);
}

/* Full-card click overlay */
.product-card__link-overlay {
  position: absolute;
  inset: 0;
  z-index: 5;
  cursor: pointer;
}

/* Title row: title + inquiry CTA inline */
.product-detail__title-row {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.product-card--aero:hover {
  border-color: var(--color-aero);
  box-shadow: 0 20px 60px var(--color-aero-glow);
}

.product-card--aqua:hover {
  border-color: var(--color-aqua);
  box-shadow: 0 20px 60px var(--color-aqua-glow);
}

.product-card--cryo:hover {
  border-color: var(--color-cryo);
  box-shadow: 0 20px 60px var(--color-cryo-glow);
}

.product-card__supertitle {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  padding: var(--space-lg) var(--space-2xl) 0;
}

.product-card--aero .product-card__supertitle { color: var(--color-aero); }
.product-card--aqua .product-card__supertitle { color: var(--color-aqua); }
.product-card--cryo .product-card__supertitle { color: var(--color-cryo); }

/* Product card thumbnails: light background so products read clearly (client feedback) */
.product-card__img-wrap {
  aspect-ratio: 4 / 3;
  background: #ffffff;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.product-card__img-wrap img {
  width: 85%;
  height: 85%;
  object-fit: contain;
  transition: transform var(--duration-slow) var(--ease-out);
}

.product-card:hover .product-card__img-wrap img {
  transform: scale(1.04);
}

/* Ambient glow behind product image on hover */
.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 55%;
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-out);
  pointer-events: none;
  z-index: 1;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.product-card--aero::before {
  background: radial-gradient(ellipse at 50% 0%, rgba(59,130,246,0.12) 0%, transparent 70%);
}

.product-card--aqua::before {
  background: radial-gradient(ellipse at 50% 0%, rgba(6,182,212,0.12) 0%, transparent 70%);
}

.product-card--cryo::before {
  background: radial-gradient(ellipse at 50% 0%, rgba(139,92,246,0.12) 0%, transparent 70%);
}

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

.product-card__body {
  padding: var(--space-xl) var(--space-2xl) var(--space-2xl);
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: var(--space-md);
}

.product-card__name {
  font-family: var(--font-display);
  font-size: var(--text-h2);
  font-weight: var(--weight-extrabold);
  letter-spacing: var(--tracking-tight);
  line-height: 1;
}

.product-card--aero .product-card__name { color: var(--color-aero); }
.product-card--aqua .product-card__name { color: var(--color-aqua); }
.product-card--cryo .product-card__name { color: var(--color-cryo); }

.product-card__tagline {
  font-size: var(--text-small);
  color: var(--text-secondary);
  margin: 0;
  line-height: var(--leading-snug);
}

.product-card__specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  margin: var(--space-sm) 0;
}

.product-card__spec {
  text-align: center;
  padding: var(--space-sm);
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast);
}

.product-card:hover .product-card__spec {
  border-color: var(--border-hover);
}

.product-card__spec-value {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: var(--weight-bold);
  line-height: 1.2;
  color: var(--text-primary);
}

.product-card__spec-label {
  font-size: 10px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  margin-top: 2px;
}

.product-card__cta {
  margin-top: auto;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
}

.product-card__cta a {
  font-size: var(--text-small);
  font-weight: var(--weight-semibold);
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  transition: color var(--duration-fast), gap var(--duration-fast);
}

.product-card--aero .product-card__cta a:hover { color: var(--color-aero); }
.product-card--aqua .product-card__cta a:hover { color: var(--color-aqua); }
.product-card--cryo .product-card__cta a:hover { color: var(--color-cryo); }

.product-card__cta a:hover {
  gap: var(--space-sm);
}

@media (max-width: 900px) {
  .product-cards { grid-template-columns: 1fr; }
}

@media (min-width: 601px) and (max-width: 900px) {
  .product-cards { grid-template-columns: repeat(2, 1fr); }
}

/* ===== PRODUCT DETAIL SECTION ===== */
.product-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
}

.product-section--alt {
  background: var(--bg-secondary);
}

.product-detail__eyebrow {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.product-detail__title {
  font-family: var(--font-display);
  font-weight: var(--weight-extrabold);
  letter-spacing: var(--tracking-tighter);
  margin-bottom: var(--space-sm);
  line-height: 1;
}

.product-detail__tagline {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  line-height: var(--leading-snug);
}

/* Product gallery */
.product-gallery {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* Gallery main: light background for all photo areas (per client feedback) */
.product-gallery__main {
  aspect-ratio: 4 / 3;
  background: #ffffff;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.08);
  position: relative;
}

/* Explicit white-bg modifier (kept for backward compatibility) */
.product-gallery__main--white-bg {
  background: #ffffff;
}

.product-gallery__main img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform var(--duration-slow) var(--ease-out);
}

.product-gallery__main:hover img {
  transform: scale(1.03);
}

.product-gallery__thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
}

.product-gallery__thumb {
  aspect-ratio: 1;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--duration-fast), opacity var(--duration-fast);
  padding: 0;
}

.product-gallery__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-normal) var(--ease-out);
}

.product-gallery__thumb:hover {
  opacity: 0.9;
}

.product-gallery__thumb:hover img {
  transform: scale(1.05);
}

.product-gallery__thumb--active {
  border-color: var(--cyan);
  opacity: 1;
}

/* Product stat grid */
.product-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-2xl);
}

.product-stat {
  background: var(--bg-secondary);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  transition: background var(--duration-fast);
}

.product-stat:hover {
  background: var(--bg-tertiary);
}

.product-stat__value {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: var(--weight-bold);
  line-height: 1;
  color: var(--cyan);
  margin-bottom: var(--space-xs);
  /* Isolate text-update reflow during count-up animation */
  contain: layout;
}

.product-stat__label {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  line-height: var(--leading-snug);
}

/* Product feature list */
.product-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.product-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: border-color var(--duration-fast), background var(--duration-fast);
}

.product-feature:hover {
  background: var(--glass-bg);
  border-color: var(--border);
}

.product-feature__icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--cyan-subtle);
  color: var(--cyan);
}

.product-feature__icon svg {
  width: 18px;
  height: 18px;
}

.product-feature__text {
  font-size: var(--text-small);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

.product-feature__text strong {
  color: var(--text-primary);
  font-weight: var(--weight-semibold);
  display: block;
  margin-bottom: 2px;
}

/* Expandable spec table */
.spec-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-xl);
  color: var(--text-secondary);
  font-size: var(--text-small);
  font-weight: var(--weight-semibold);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  transition: all var(--duration-fast);
  width: 100%;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.spec-toggle:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.spec-toggle__icon {
  transition: transform var(--duration-normal) var(--ease-out);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.spec-toggle--open .spec-toggle__icon {
  transform: rotate(180deg);
}

.spec-table-wrap {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--duration-slow) var(--ease-out);
}

.spec-table-wrap--open {
  grid-template-rows: 1fr;
}

.spec-table-inner {
  overflow: hidden;
}

/* Spec table */
.spec-table {
  width: 100%;
  font-size: var(--text-small);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-lg);
}

.spec-table__group {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--cyan);
  background: var(--cyan-subtle);
  padding: var(--space-sm) var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.spec-table tr {
  border-bottom: 1px solid var(--border);
  transition: background var(--duration-fast);
}

.spec-table tr:last-child {
  border-bottom: none;
}

.spec-table tr:hover {
  background: rgba(255,255,255,0.02);
}

.spec-table tbody tr:nth-child(even) {
  background: rgba(255,255,255,0.015);
}

.spec-table td {
  padding: 10px var(--space-lg);
  vertical-align: top;
}

.spec-table td:first-child {
  color: var(--text-tertiary);
  width: 38%;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.spec-table td:last-child {
  font-weight: var(--weight-medium);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: var(--text-small);
}

.spec-table .spec-highlight {
  color: var(--cyan);
  font-weight: var(--weight-bold);
}

/* ===== STAT BLOCK (large number + label) ===== */
.stat-block {
  padding: var(--space-xl) var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
}

.stat-block__value {
  font-family: var(--font-mono);
  font-size: var(--text-stat);
  font-weight: var(--weight-bold);
  line-height: 1;
  margin-bottom: var(--space-xs);
  color: var(--cyan);
}

.stat-block__label {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-top: var(--space-xs);
  line-height: var(--leading-normal);
}

/* Company stats row */
.company-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin: var(--space-3xl) 0;
}

/* ===== FEATURE CARDS (Brand Section) ===== */
.feature-card {
  padding: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  transition:
    border-color var(--duration-normal) var(--ease-out),
    background var(--duration-normal) var(--ease-out),
    transform var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.feature-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--cyan));
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.feature-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-elevated);
  transform: translateY(-4px);
}

.feature-card:hover::after {
  opacity: 1;
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  background: var(--accent-subtle);
  border: 1px solid var(--accent-glow);
  color: var(--cyan);
}

.feature-card__icon svg {
  width: 24px;
  height: 24px;
}

.feature-card__title {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-md);
  letter-spacing: var(--tracking-tight);
}

.feature-card__body {
  font-size: var(--text-small);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* ===== PARTNER LOGOS ===== */
.partner-badge {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: var(--text-small);
  font-weight: var(--weight-semibold);
  color: var(--text-secondary);
  letter-spacing: var(--tracking-wide);
  transition: border-color var(--duration-fast), color var(--duration-fast);
}

.partner-badge:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.cert-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 6px 14px;
  background: var(--accent-subtle);
  border: 1px solid var(--accent-glow);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--text-secondary);
}

/* ===== COMPARISON SECTION ===== */
.comparison-cols {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.comparison-col-head {
  padding: var(--space-xl);
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.comparison-col-head:not(:last-child) {
  border-right: 1px solid var(--border);
}

.comparison-col-head--primary {
  background: linear-gradient(160deg, var(--accent-subtle), transparent);
  border-top: 2px solid var(--accent);
}

.comparison-col-head__icon {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.comparison-col-head__title {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-xs);
}

.comparison-col-head__sub {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

.comparison-row {
  display: contents;
}

.comparison-cell {
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid var(--border);
  font-size: var(--text-small);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.comparison-cell:not(:last-child) {
  border-right: 1px solid var(--border);
}

.comparison-cell--label {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-weight: var(--weight-medium);
}

.comparison-cell--primary {
  background: rgba(23,95,163,0.04);
}

.comparison-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-small);
  font-weight: var(--weight-medium);
}

.comparison-indicator--good { color: var(--color-good); }
.comparison-indicator--warn { color: var(--color-warn); }
.comparison-indicator--bad  { color: var(--color-bad); }

.comparison-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.comparison-dot--good { background: var(--color-good); }
.comparison-dot--warn { background: var(--color-warn); }
.comparison-dot--bad  { background: var(--color-bad); }

/* Temperature bar visualization */
.temp-bar-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.temp-bar-label {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

.temp-bar-track {
  height: 6px;
  background: var(--bg-elevated);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.temp-bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 1s var(--ease-expo);
}

.temp-bar-fill--good { background: linear-gradient(90deg, var(--color-good), #16a34a); }
.temp-bar-fill--warn { background: linear-gradient(90deg, var(--color-warn), #d97706); }
.temp-bar-fill--bad  { background: linear-gradient(90deg, var(--color-bad), #dc2626); }

/* Key message banner */
.key-message {
  margin-top: var(--space-3xl);
  padding: var(--space-xl) var(--space-2xl);
  background: var(--accent-subtle);
  border: 1px solid var(--accent-glow);
  border-radius: var(--radius-xl);
  text-align: center;
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
  letter-spacing: var(--tracking-wide);
}

.key-message span {
  color: var(--cyan);
}

/* Comparison: horizontal scroll on tablet/mobile */
.comparison-scroll-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-xl);
  /* Show subtle scroll hint shadow on right */
  background:
    linear-gradient(to right, var(--bg-secondary) 30%, transparent) left / 40px 100% no-repeat,
    linear-gradient(to left,  var(--bg-secondary) 30%, transparent) right / 40px 100% no-repeat;
}

@media (max-width: 900px) {
  .comparison-cols {
    min-width: 640px;
  }
}

/* ===== FAQ ACCORDION ===== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding: var(--space-xl) var(--space-2xl);
  text-align: left;
  background: none;
  cursor: pointer;
  font-size: var(--text-small);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  transition: background var(--duration-fast), color var(--duration-fast);
  line-height: var(--leading-snug);
}

.faq-question:hover {
  background: var(--glass-bg);
  color: var(--cyan);
}

.faq-item--open .faq-question {
  color: var(--cyan);
}

.faq-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--duration-normal) var(--ease-spring), border-color var(--duration-fast), background var(--duration-fast);
}

.faq-icon svg {
  width: 12px;
  height: 12px;
  transition: transform var(--duration-normal) var(--ease-spring);
}

.faq-item--open .faq-icon {
  background: var(--cyan);
  border-color: var(--cyan);
}

.faq-item--open .faq-icon svg {
  transform: rotate(45deg);
}

.faq-answer-wrap {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--duration-slow) var(--ease-out);
}

.faq-item--open .faq-answer-wrap {
  grid-template-rows: 1fr;
}

.faq-answer-inner {
  overflow: hidden;
}

.faq-answer {
  padding: 0 var(--space-2xl) var(--space-xl);
  font-size: var(--text-small);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  border-top: 1px solid var(--border);
  padding-top: var(--space-lg);
}

/* ===== CONTACT FORM ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-3xl);
  align-items: start;
}

.contact-info {
  position: sticky;
  top: calc(80px + var(--space-xl));
}

.section--alt .contact-info {
  position: static;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-lg);
}

.contact-info__title {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-md);
}

.contact-info__desc {
  font-size: var(--text-small);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-2xl);
}

.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.contact-info__icon {
  width: 36px;
  height: 36px;
  background: var(--accent-subtle);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--cyan);
}

.contact-info__icon svg {
  width: 16px;
  height: 16px;
}

.contact-info__label {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  margin-bottom: 2px;
}

.contact-info__value {
  font-size: var(--text-small);
  color: var(--text-primary);
  font-weight: var(--weight-medium);
}

/* Form styles */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  padding: var(--space-3xl);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

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

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

.form-label {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.form-label .required {
  color: var(--cyan);
  margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--text-small);
  transition:
    border-color var(--duration-fast),
    box-shadow var(--duration-fast),
    background var(--duration-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--cyan);
  background: var(--bg-elevated);
  box-shadow: 0 0 0 3px var(--cyan-subtle), -3px 0 0 var(--cyan);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-tertiary);
}

.form-select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
  appearance: none;
  -webkit-appearance: none;
}

.form-select option {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.form-textarea {
  min-height: 130px;
  resize: vertical;
  line-height: var(--leading-relaxed);
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-top: 2px;
}

/* Attachment list */
.form-attachments-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: flex; flex-direction: column; gap: 6px;
}
.form-attachments-list li {
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 8px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-secondary);
}
.form-attachments-list__name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.form-attachments-list__size { color: var(--text-tertiary); font-size: 12px; }
.form-attachments-list__remove {
  background: none; border: 0; cursor: pointer;
  color: var(--text-tertiary); font-size: 16px; padding: 0 4px;
}
.form-attachments-list__remove:hover { color: #ff5c5c; }

/* Contact success modal */
.form-confirm-modal {
  position: fixed; inset: 0; z-index: 550;
  background: rgba(0,0,0,0.78); backdrop-filter: blur(6px);
  display: none; align-items: center; justify-content: center;
  padding: 4vh 4vw;
}
.form-confirm-modal[aria-hidden="false"] { display: flex; }
.form-confirm-modal__card {
  max-width: 420px; width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 32px 28px;
  text-align: center;
}
.form-confirm-modal__icon {
  width: 60px; height: 60px;
  border-radius: 999px;
  background: rgba(0,212,255,0.15);
  color: var(--cyan, #00d4ff);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 32px;
  margin-bottom: 16px;
}
.form-confirm-modal__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  color: var(--text-primary);
  margin: 0 0 8px;
}
.form-confirm-modal__body {
  color: var(--text-secondary); font-size: 14.5px; line-height: 1.6; margin-bottom: 22px;
}
.form-confirm-modal__ok {
  padding: 10px 28px;
  border-radius: 999px;
  background: var(--cyan, #00d4ff);
  color: #001018;
  border: 0; font-weight: 700; font-size: 13.5px;
  cursor: pointer;
}

/* Form success state */
.form-success {
  display: none;
  text-align: center;
  padding: var(--space-3xl);
}

.form-success--visible {
  display: block;
}

.form-success__icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(34,197,94,0.12);
  border: 2px solid #22c55e;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-xl);
  color: #22c55e;
}

.form-success__title {
  font-family: var(--font-display);
  font-size: var(--text-h2);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-md);
}

.form-success__body {
  color: var(--text-secondary);
  font-size: var(--text-small);
  line-height: var(--leading-relaxed);
}

@media (max-width: 1024px) {
  .contact-layout { grid-template-columns: 1fr; }
  .contact-info { position: static; }
}

@media (max-width: 640px) {
  .form-grid { grid-template-columns: 1fr; }
  .contact-form { padding: var(--space-xl); }
}

/* ===== CTA SECTION (Webflow style) ===== */
.cta-section {
  background: var(--bg-secondary);
  padding: var(--space-4xl) var(--container-padding);
  overflow: hidden;
}

.cta-logos {
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  flex-wrap: wrap;
  padding-bottom: var(--space-4xl);
  border-bottom: 1px solid #e5e7eb;
  margin-bottom: var(--space-4xl);
}

.cta-logos span {
  font-size: var(--text-small);
  font-weight: var(--weight-semibold);
  color: #9ca3af;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
}

.cta-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-4xl);
  align-items: start;
}

.cta-heading {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: var(--weight-extrabold);
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: #ffffff;
}

.cta-buttons {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-2xl);
  flex-wrap: wrap;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: var(--weight-semibold);
  transition: all var(--duration-fast);
  white-space: nowrap;
}

.cta-btn--primary {
  background: #2563eb;
  color: #ffffff;
}
.cta-btn--primary:hover {
  background: #1d4ed8;
}

.cta-btn--secondary {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}
.cta-btn--secondary:hover {
  background: rgba(255, 255, 255, 0.15);
}

.cta-right {
  padding-top: var(--space-md);
}

.cta-desc {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.7;
}

@media (max-width: 768px) {
  .cta-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
  .cta-logos {
    gap: var(--space-lg);
  }
}

/* ===== FOOTER ===== */
.footer {
  padding: var(--space-3xl) var(--container-padding);
  border-top: 1px solid var(--border);
  background: var(--bg-primary);
}

.footer__top {
  padding: var(--space-3xl) 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: var(--space-2xl);
  align-items: start;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer__logo img {
  height: 38px;
  width: auto;
  filter: invert(1) brightness(2);
  opacity: 0.7;
  transition: opacity var(--duration-fast);
}

.footer__logo:hover img {
  opacity: 1;
}

.footer__company {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__col-title {
  font-size: 1rem;
  font-weight: var(--weight-bold);
  color: #ffffff;
  margin-bottom: var(--space-sm);
}

.footer__col-link {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.65);
  transition: color var(--duration-fast);
  line-height: var(--leading-relaxed);
}

.footer__col-link:hover {
  color: #ffffff;
}

.footer__brand-text {
  font-family: var(--font-display);
  font-weight: var(--weight-extrabold);
  font-size: clamp(6rem, 15vw, 16rem);
  color: rgba(255, 255, 255, 0.04);
  text-align: center;
  line-height: 0.85;
  padding: var(--space-xl) 0;
  overflow: hidden;
  white-space: nowrap;
  user-select: none;
}

.footer__bottom {
  padding: var(--space-lg) var(--container-padding);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__copyright {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.35);
}

@media (max-width: 768px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }
  .footer__brand {
    grid-column: 1 / -1;
  }
  .footer__brand-text {
    font-size: clamp(3rem, 15vw, 5rem);
  }
  .footer__bottom .container {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
}

/* ===== SCROLL INDICATOR (section-level) ===== */
.section-divider-line {
  display: block;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
}

/* ===== AMBIENT GLOW OVERLAYS ===== */
/* Use radial-gradient instead of filter:blur() for GPU-cheap soft glow
   (perf: filter:blur(100px) on 60vw surfaces was the top jank source on low-end GPUs) */
.ambient-glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0.4;
  z-index: 0;
}

.ambient-glow--blue {
  background: radial-gradient(circle, var(--accent) 0%, transparent 65%);
  width: 60vw;
  height: 60vw;
}

.ambient-glow--cyan {
  background: radial-gradient(circle, var(--cyan) 0%, transparent 65%);
  width: 40vw;
  height: 40vw;
}

/* ===== COMPANY SECTION ===== */
.company-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

@media (max-width: 768px) {
  .company-grid { grid-template-columns: 1fr; }
  .product-stats { grid-template-columns: repeat(2, 1fr); }
}

/* ===== MISC UTILITIES ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.badge--accent {
  background: var(--accent-subtle);
  color: var(--cyan);
  border: 1px solid var(--accent-glow);
}

.badge--aero {
  background: var(--color-aero-subtle);
  color: var(--color-aero);
  border: 1px solid var(--color-aero-glow);
}

.badge--aqua {
  background: var(--color-aqua-subtle);
  color: var(--color-aqua);
  border: 1px solid var(--color-aqua-glow);
}

.badge--cryo {
  background: var(--color-cryo-subtle);
  color: var(--color-cryo);
  border: 1px solid var(--color-cryo-glow);
}

/* ===== 3D PRODUCT VIEWER ===== */
.product-3d-wrap {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: #ffffff;
}

.product-3d-viewer {
  position: absolute;
  inset: 0;
  z-index: 2;
  cursor: grab;
}
.product-3d-viewer:active { cursor: grabbing; }

.product-3d-viewer canvas {
  display: none;
  width: 100% !important;
  height: 100% !important;
}
.product-3d-viewer.model-loaded canvas {
  display: block;
}

/* Fallback image (shown on mobile / before 3D load) */
.product-3d-fallback {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  transition: opacity 0.8s var(--ease-out);
}
.product-3d-fallback img {
  width: 85%;
  height: 85%;
  object-fit: contain;
}

/* Loading progress bar */
.model-progress {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  width: 160px;
  height: 3px;
  background: var(--border);
  border-radius: var(--radius-full);
  overflow: hidden;
  z-index: 10;
  transition: opacity 0.5s var(--ease-out);
}
.model-progress__fill {
  height: 100%;
  width: 0;
  background: var(--cyan);
  border-radius: var(--radius-full);
  transition: width 0.3s var(--ease-out);
  box-shadow: 0 0 8px var(--cyan-glow);
}

/* Mobile: hide 3D viewer, show fallback */
@media (pointer: coarse), (max-width: 768px) {
  .product-3d-viewer { display: none; }
  .product-3d-fallback { opacity: 1; pointer-events: auto; position: relative; }
  .product-3d-wrap { aspect-ratio: auto; }
}

/* ===== PARTNERS GRID ===== */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-xl);
  max-width: 1100px;
  margin: 0 auto;
}
@media (max-width: 1024px) {
  .partners-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 600px) {
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
}

.partner-logo-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-2xl) var(--space-lg);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
}
.partner-logo-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.partner-logo-card__icon {
  width: 100%;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.08);
}
.partner-logo-card__icon img {
  width: min(150px, 100%);
  max-height: 32px;
  object-fit: contain;
  filter: brightness(0);
  opacity: 0.85;
}

.partner-logo-card__name {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: var(--weight-bold);
  color: var(--text-primary);
  letter-spacing: var(--tracking-wide);
  text-align: center;
}

.partner-logo-card__tier {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  text-align: center;
}

/* ===== PARTNERS GRID — COMPACT VARIANT (used under Company Intro) ===== */
.partners-section--compact {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}
.partners-section--compact .section__header--compact {
  margin-bottom: var(--space-xl);
}
.partners-grid--compact {
  gap: var(--space-md);
  max-width: 960px;
}
.partner-logo-card--compact {
  padding: var(--space-md) var(--space-sm);
  gap: var(--space-xs);
}
.partner-logo-card--compact .partner-logo-card__icon {
  min-height: 48px;
  padding: var(--space-sm);
}
.partner-logo-card--compact .partner-logo-card__icon img {
  max-height: 22px;
  width: min(110px, 100%);
}
.partner-logo-card--compact .partner-logo-card__name {
  font-size: 0.875rem;
}
.partner-logo-card--compact .partner-logo-card__tier {
  font-size: 0.6875rem;
}

/* ============================================================
   SIDEBAR NAV
   ============================================================ */
.sidebar {
  display: none;
}

@media (min-width: 1025px) {
  .sidebar {
    display: none;
  }
}

.sidebar__logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 8px;
  flex-shrink: 0;
}

.sidebar__logo img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  filter: invert(1) brightness(2);
}

.sidebar__divider {
  width: 32px;
  height: 1px;
  background: var(--border);
  margin: 12px 0;
  flex-shrink: 0;
}

.sidebar__nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex: 1;
  padding: 4px 0;
}

.sidebar__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  cursor: pointer;
  background: none;
  border: none;
  position: relative;
  transition:
    background var(--duration-fast),
    color var(--duration-fast);
  color: var(--text-tertiary);
  text-decoration: none;
}

.sidebar__item:hover {
  color: var(--cyan);
  background: var(--cyan-subtle);
}

.sidebar__item:hover .sidebar__icon svg {
  filter: drop-shadow(0 0 6px var(--cyan));
}

.sidebar__item--active {
  color: var(--cyan);
}

.sidebar__item--active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 28px;
  background: var(--cyan);
  border-radius: 0 2px 2px 0;
}

.sidebar__icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sidebar__icon svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  transition: opacity var(--duration-fast);
}

.sidebar__label {
  font-size: 8px;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  line-height: 1;
  color: inherit;
  white-space: nowrap;
}

.sidebar__quote {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  cursor: pointer;
  background: var(--accent);
  border: none;
  color: #fff;
  font-size: 9px;
  font-weight: var(--weight-bold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: 8px;
  flex-shrink: 0;
  transition:
    background var(--duration-fast),
    box-shadow var(--duration-fast),
    transform var(--duration-fast);
  text-decoration: none;
  line-height: 1;
}

.sidebar__quote svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}

.sidebar__quote:hover {
  background: var(--accent-hover);
  box-shadow: 0 0 24px var(--accent-glow);
  transform: translateY(-1px);
}

/* ============================================================
   PRODUCT DETAIL TABS
   ============================================================ */
.product-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-3xl);
}

.product-tab {
  padding: 14px 32px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-tertiary);
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  transition:
    color var(--duration-fast),
    border-color var(--duration-fast);
  position: relative;
  bottom: -1px;
}

.product-tab:hover {
  color: var(--text-secondary);
}

.product-tab.active {
  color: var(--text-primary);
  border-bottom-color: var(--tab-color, var(--cyan));
}

.product-tab-content {
  display: none;
}

.product-tab-content.active {
  display: block;
}

/* ============================================================
   SLIDE-OVER PANELS
   ============================================================ */
.slide-over {
  position: fixed;
  inset: 0;
  z-index: 200;
  pointer-events: none;
}

.slide-over.open {
  pointer-events: auto;
}

.slide-over__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  opacity: 0;
  transition: opacity 0.4s var(--ease-out);
}

.slide-over.open .slide-over__backdrop {
  opacity: 1;
}

.slide-over__content {
  position: absolute;
  left: 0;
  top: 0;
  width: 480px;
  max-width: 90vw;
  height: 100vh;
  background: var(--bg-primary);
  border-right: 1px solid var(--border);
  transform: translateX(-100%);
  transition: transform 0.4s var(--ease-out);
  overflow-y: auto;
  padding: var(--space-3xl);
  display: flex;
  flex-direction: column;
}

@media (min-width: 1025px) {
  .slide-over__content {
    left: 80px;
  }
}

.slide-over.open .slide-over__content {
  transform: translateX(0);
}

.slide-over__close {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 1.5rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition:
    background var(--duration-fast),
    color var(--duration-fast);
  line-height: 1;
}

.slide-over__close:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

.slide-over__body {
  margin-top: var(--space-2xl);
  flex: 1;
}

.slide-over__eyebrow {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: var(--space-lg);
}

.slide-over__title {
  font-family: var(--font-display);
  font-size: var(--text-h2);
  font-weight: var(--weight-extrabold);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-xl);
  line-height: var(--leading-snug);
}

/* ============================================================
   MOBILE BOTTOM TAB BAR
   ============================================================ */
.bottom-bar {
  display: none;
}

@media (max-width: 1024px) {
  .bottom-bar {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid var(--border);
    z-index: 100;
    align-items: stretch;
  }

  body {
    padding-bottom: 64px;
  }
}

.bottom-bar__item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-tertiary);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.bottom-bar__item:hover,
.bottom-bar__item--active {
  color: var(--cyan);
}

.bottom-bar__icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.bottom-bar__icon svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
}

.bottom-bar__label {
  font-size: 10px;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1;
}

.bottom-bar__item--quote {
  color: var(--cyan);
  background: var(--accent-subtle);
  border-left: 1px solid var(--border);
}

.bottom-bar__item--quote:hover {
  background: var(--accent);
  color: #fff;
}

/* ===== MOBILE COMPARISON CARDS ===== */
.comparison-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-top: var(--space-sm);
}

.comp-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.comp-card__icon {
  font-size: 20px;
}

.comp-card__title {
  font-size: 11px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  font-weight: var(--weight-semibold);
}

.comp-card__value {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: var(--weight-bold);
  color: var(--color-good);
}

.comp-card__vs {
  font-size: 11px;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 4px;
}

.comp-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}
.comp-dot--bad { background: var(--color-bad); }
.comp-dot--warn { background: var(--color-warn); }

/* ============================================================
   EN LANGUAGE — NEUTRALIZE "BAD" RED IN COMPARISON SECTION
   Client request: remove red "air-cooled = BAD" contrast on EN page.
   KO view is intentionally left unchanged.
   ============================================================ */
html[lang="en"] .comparison-indicator--bad  { color: #6b7280; }
html[lang="en"] .comparison-dot--bad        { background: #6b7280; }
html[lang="en"] .temp-bar-fill--bad         { background: linear-gradient(90deg, #9ca3af, #6b7280); }
html[lang="en"] .comp-dot--bad             { background: #6b7280; }

/* ============================================================
   RESPONSIVE VISIBILITY UTILITIES
   ============================================================ */
@media (max-width: 1024px) {
  .desktop-only { display: none !important; }
}
@media (min-width: 1025px) {
  .mobile-only { display: none !important; }
  .nav__logo img { height: 42px; }
  .nav__link { font-size: 16px; padding: 8px 6px; }
  .lang-toggle__btn { padding: 8px 16px; font-size: 0.875rem; }
}

/* ===== ANNOUNCEMENT POPUP ===== */
.announce-popup {
  position: fixed; inset: 0; z-index: 500;
  display: none;
  align-items: center; justify-content: center;
  padding: 4vh 4vw;
}
.announce-popup[aria-hidden="false"] { display: flex; }
.announce-popup__backdrop {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.78);
  backdrop-filter: blur(6px);
  cursor: pointer;
}
.announce-popup__inner {
  position: relative;
  width: 100%;
  max-width: 560px;
  max-height: 92vh;
  overflow-y: auto;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  animation: announceIn 0.28s var(--ease-out);
  display: flex; flex-direction: column;
}
@keyframes announceIn {
  from { opacity: 0; transform: translateY(12px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.announce-popup__close {
  position: absolute; top: 12px; right: 12px;
  width: 34px; height: 34px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  color: #fff; border: 0; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  z-index: 2;
}
.announce-popup__close:hover { background: rgba(255,255,255,0.18); }
.announce-popup__gallery {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 60vh;
  overflow-y: auto;
  scrollbar-width: thin;
}
.announce-popup__gallery img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
}
.announce-popup__body { padding: 22px 26px 12px; }
.announce-popup__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  line-height: 1.3;
  color: var(--text-primary);
  margin: 0 0 10px;
}
.announce-popup__text {
  color: var(--text-secondary);
  font-size: 14.5px;
  line-height: 1.65;
  white-space: pre-wrap;
}
.announce-popup__cta {
  display: inline-block;
  margin-top: 14px;
  padding: 9px 18px;
  border-radius: 999px;
  background: var(--cyan, #00d4ff);
  color: #001018;
  font-size: 13px; font-weight: 700;
  text-decoration: none;
}
.announce-popup__footer {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 26px 18px;
  border-top: 1px solid var(--border);
  gap: 12px;
}
.announce-popup__hide {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--text-tertiary);
  font-size: 13px;
  cursor: pointer;
}
.announce-popup__hide input { accent-color: var(--cyan, #00d4ff); }
.announce-popup__close-btn {
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  color: var(--text-primary);
  border: 1px solid var(--border);
  font-size: 13px; font-weight: 600;
  cursor: pointer;
}
.announce-popup__close-btn:hover { background: rgba(255,255,255,0.16); }
@media (max-width: 540px) {
  .announce-popup { padding: 2vh 2vw; }
  .announce-popup__body { padding: 18px 18px 8px; }
  .announce-popup__title { font-size: 18px; }
  .announce-popup__footer { padding: 10px 18px 14px; }
}