/* TOT Vietnam — Redesign */
:root {
  --navy: #1a1a4e;
  --navy-deep: #12123a;
  --navy-mid: #242260;
  --accent: #2aa7df;
  --accent-dark: #1e8fc4;
  --accent-glow: rgba(42, 167, 223, 0.25);
  --white: #ffffff;
  --gray-50: #f7f8fc;
  --gray-100: #eef0f6;
  --gray-200: #dde1ec;
  --gray-400: #8b95a8;
  --gray-600: #5a6478;
  --gray-800: #2d3344;
  --text: #1e2433;
  --text-muted: #5a6478;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(26, 26, 78, 0.08);
  --shadow-lg: 0 20px 60px rgba(26, 26, 78, 0.12);
  --header-h: 72px;
  --topbar-h: 40px;
  --font: 'Be Vietnam Pro', system-ui, sans-serif;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --container: min(1200px, 100% - 2.5rem);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--white);
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

.container { width: var(--container); margin-inline: auto; }

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

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  padding: 0.75rem 1.25rem;
  background: var(--accent);
  color: var(--white);
  border-radius: var(--radius);
  font-weight: 600;
}
.skip-link:focus { top: 1rem; }

/* Topbar */
.topbar {
  background: var(--navy-deep);
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.8125rem;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
}
.topbar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.topbar a:hover { color: var(--accent); }
.topbar__left, .topbar__right { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.topbar__sep {
  width: 1px;
  height: 12px;
  background: rgba(255, 255, 255, 0.2);
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.header.is-scrolled {
  box-shadow: var(--shadow);
  border-color: var(--gray-100);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 1.5rem;
}
.logo img { height: 44px; width: auto; }

.nav__list {
  display: flex;
  gap: 0.25rem;
}
.nav__list a {
  padding: 0.5rem 0.875rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--gray-800);
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}
.nav__list a:hover {
  color: var(--accent);
  background: var(--gray-50);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.header__catalog { display: inline-flex; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: 8px;
}
.nav-toggle__bar {
  display: block;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Buttons */
.btn,
a.btn,
button.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.6875rem 1.375rem;
  font-family: var(--font);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.01em;
  text-decoration: none;
  border: 1.5px solid transparent;
  border-radius: 10px;
  cursor: pointer;
  white-space: nowrap;
  vertical-align: middle;
  -webkit-tap-highlight-color: transparent;
  transition:
    transform 0.2s var(--ease),
    box-shadow 0.2s var(--ease),
    background 0.2s var(--ease),
    border-color 0.2s var(--ease),
    color 0.2s var(--ease);
}
.btn:focus { outline: none; }
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

.btn--xs {
  min-height: 36px;
  padding: 0.4375rem 0.875rem;
  font-size: 0.8125rem;
  border-radius: 8px;
}
.btn--sm {
  min-height: 40px;
  padding: 0.5625rem 1.125rem;
  font-size: 0.875rem;
}
.btn--md {
  min-height: 44px;
  padding: 0.6875rem 1.375rem;
  font-size: 0.9375rem;
}
.btn--lg {
  min-height: 52px;
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
  border-radius: 12px;
}
.btn--full { width: 100%; }

/* Arrow icon (optional) */
.btn--arrow::after {
  content: '';
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
  background: currentColor;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12h14M13 6l6 6-6 6'/%3E%3C/svg%3E") center / contain no-repeat;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12h14M13 6l6 6-6 6'/%3E%3C/svg%3E") center / contain no-repeat;
  transition: transform 0.2s var(--ease);
}
.btn--arrow:hover::after { transform: translateX(3px); }

.btn--primary {
  background: linear-gradient(180deg, #3bb5e8 0%, var(--accent) 45%, var(--accent-dark) 100%);
  color: var(--white) !important;
  border-color: transparent;
  box-shadow:
    0 1px 2px rgba(26, 26, 78, 0.06),
    0 4px 14px rgba(42, 167, 223, 0.35);
}
.btn--primary:hover {
  background: linear-gradient(180deg, #4fc0ef 0%, #35b3e6 45%, #1a85b8 100%);
  color: var(--white) !important;
  box-shadow:
    0 2px 4px rgba(26, 26, 78, 0.08),
    0 8px 22px rgba(42, 167, 223, 0.42);
  transform: translateY(-1px);
}
.btn--primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(42, 167, 223, 0.3);
}

.btn--navy {
  background: linear-gradient(180deg, var(--navy-mid) 0%, var(--navy) 100%);
  color: var(--white) !important;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(26, 26, 78, 0.25);
}
.btn--navy:hover {
  background: linear-gradient(180deg, #2e2d72 0%, var(--navy-deep) 100%);
  color: var(--white) !important;
  box-shadow: 0 8px 22px rgba(26, 26, 78, 0.32);
  transform: translateY(-1px);
}

.btn--outline {
  background: var(--white);
  color: var(--navy) !important;
  border-color: var(--gray-200);
  box-shadow: 0 1px 2px rgba(26, 26, 78, 0.04);
}
.btn--outline:hover {
  border-color: var(--accent);
  color: var(--accent-dark) !important;
  background: rgba(42, 167, 223, 0.06);
  box-shadow: 0 4px 12px rgba(42, 167, 223, 0.12);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--navy) !important;
  border-color: transparent;
  box-shadow: none;
}
.btn--ghost:hover {
  background: var(--gray-100);
  color: var(--navy) !important;
}

.btn--soft {
  background: rgba(42, 167, 223, 0.1);
  color: var(--accent-dark) !important;
  border-color: rgba(42, 167, 223, 0.2);
}
.btn--soft:hover {
  background: rgba(42, 167, 223, 0.16);
  border-color: rgba(42, 167, 223, 0.35);
  color: var(--navy) !important;
}

/* Text link styled as subtle button */
.btn--link {
  min-height: auto;
  padding: 0.375rem 0;
  background: transparent;
  border: none;
  border-radius: 0;
  color: var(--accent-dark) !important;
  box-shadow: none;
  font-weight: 600;
}
.btn--link:hover {
  color: var(--navy) !important;
  background: transparent;
  transform: none;
}
.btn--link::after {
  content: ' →';
  display: inline;
  transition: transform 0.2s var(--ease);
}
.btn--link:hover::after { transform: translateX(2px); }

/* Hero */
.hero {
  position: relative;
  padding: 4rem 0 5rem;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 90% 20%, rgba(42, 167, 223, 0.12) 0%, transparent 55%),
    radial-gradient(ellipse 60% 50% at 10% 80%, rgba(36, 34, 96, 0.06) 0%, transparent 50%),
    linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
  z-index: 0;
}
.hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.hero__content { max-width: 560px; }

.badge {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  background: rgba(42, 167, 223, 0.12);
  color: var(--accent-dark);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 100px;
  margin-bottom: 1.25rem;
}

.hero__title {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--navy);
  margin-bottom: 1.25rem;
}
.text-gradient {
  background: linear-gradient(135deg, var(--accent) 0%, var(--navy-mid) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero__desc {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.7;
}
.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}
.hero__stats {
  display: flex;
  gap: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--gray-200);
}
.hero__stats strong {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--navy);
  line-height: 1.2;
}
.hero__stats span {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.hero__visual { position: relative; }
.hero__card--main {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-100);
}
.hero__card--main img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.hero__card--float {
  position: absolute;
  bottom: -1rem;
  left: -1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-100);
  max-width: 260px;
}
.hero__float-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--navy-mid));
  color: var(--white);
  border-radius: 10px;
  flex-shrink: 0;
}
.hero__card--float strong { display: block; font-size: 0.9375rem; color: var(--navy); }
.hero__card--float p { font-size: 0.8125rem; color: var(--text-muted); margin: 0; }

/* Process strip */
.process-strip {
  background: var(--navy);
  color: var(--white);
  padding: 1.25rem 0;
}
.process-strip__list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
.process-strip__list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9375rem;
  font-weight: 500;
}
.process-strip__num {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--accent);
  opacity: 0.9;
}

/* Sections */
.section { padding: 5rem 0; }
.section__head { margin-bottom: 3rem; max-width: 640px; }
.section__head--row {
  max-width: none;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 2rem;
  flex-wrap: wrap;
}
.section__label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.section__title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  color: var(--navy);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

/* Solutions */
.solutions { background: var(--gray-50); }
.solutions__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.solution-card {
  position: relative;
  padding: 2rem;
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-100);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.solution-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.solution-card--featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), var(--shadow);
}
.solution-card__badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.25rem 0.625rem;
  background: var(--accent);
  color: var(--white);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  border-radius: 100px;
}
.solution-card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  margin-bottom: 1.25rem;
}
.solution-card__icon--food { background: rgba(42, 167, 223, 0.12); color: var(--accent); }
.solution-card__icon--retail { background: rgba(36, 34, 96, 0.1); color: var(--navy-mid); }
.solution-card__icon--factory { background: rgba(42, 167, 223, 0.08); color: var(--accent-dark); }
.solution-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 0.75rem;
}
.solution-card p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  line-height: 1.65;
}
.solution-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin-top: auto;
  padding-top: 0.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-dark) !important;
  transition: color 0.2s, gap 0.2s;
}
.solution-card__link span {
  display: inline-block;
  transition: transform 0.2s var(--ease);
}
.solution-card__link:hover {
  color: var(--navy) !important;
}
.solution-card__link:hover span { transform: translateX(4px); }
.solution-card {
  display: flex;
  flex-direction: column;
}

/* Categories */
.categories__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
.cat-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 1.5rem;
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.cat-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.cat-card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-bottom: 1rem;
  background: linear-gradient(145deg, rgba(42, 167, 223, 0.14) 0%, rgba(36, 34, 96, 0.06) 100%);
  color: var(--accent-dark);
  border-radius: 14px;
  border: 1px solid rgba(42, 167, 223, 0.15);
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.cat-card__icon svg {
  width: 26px;
  height: 26px;
  display: block;
}
.cat-card:hover .cat-card__icon {
  background: linear-gradient(145deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: var(--white);
  border-color: transparent;
  transform: scale(1.05);
}
.cat-card h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.25rem;
  line-height: 1.35;
}
.cat-card__meta {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* Products */
.products { background: var(--gray-50); }
.tabs {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.tabs__btn {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: 100px;
  border: 1px solid var(--gray-200);
  background: var(--white);
  transition: all 0.2s;
}
.tabs__btn:hover { border-color: var(--accent); color: var(--accent); }
.tabs__btn.is-active {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
}

.products__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.product-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--gray-100);
  overflow: hidden;
  transition: box-shadow 0.3s, transform 0.3s;
}
.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}
.product-card.is-hidden { display: none; }
.product-card__img {
  position: relative;
  display: block;
  aspect-ratio: 1;
  background: var(--gray-50);
  overflow: hidden;
}
.product-card__img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 1rem;
  transition: transform 0.4s var(--ease);
}
.product-card:hover .product-card__img img { transform: scale(1.05); }
.product-card__tag {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.25rem 0.5rem;
  background: var(--navy);
  color: var(--white);
  font-size: 0.6875rem;
  font-weight: 600;
  border-radius: 4px;
}
.product-card__body { padding: 1.25rem; }
.product-card__brand {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.375rem;
}
.product-card__name {
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.375rem;
}
.product-card__name a {
  color: var(--navy);
  text-decoration: none;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s;
}
.product-card__name a:hover { color: var(--accent-dark); }
.product-card__model {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  line-height: 1.4;
}
.product-card__model strong {
  color: var(--navy);
  font-weight: 700;
  font-family: ui-monospace, 'SF Mono', Menlo, monospace;
  font-size: 0.8125rem;
}
.product-card__cta {
  display: flex;
  gap: 0.5rem;
}
.product-card__cta .btn {
  flex: 1;
  min-height: 38px;
  padding: 0.5rem 0.625rem;
  font-size: 0.8125rem;
  border-radius: 8px;
}
.product-card__cta .btn--primary:hover,
.product-card__cta .btn--outline:hover {
  transform: none;
}
.product-card__cta .btn--outline {
  background: var(--gray-50);
  border-color: var(--gray-200);
}
.product-card__cta .btn--outline:hover {
  background: var(--white);
}

.products__footer,
.section-cta {
  display: flex;
  justify-content: center;
  margin-top: 3rem;
}
.about .btn { margin-top: 0.25rem; }
.section__head--row .btn { flex-shrink: 0; }

/* About */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.about__text {
  color: var(--text-muted);
  margin: 1rem 0 2rem;
  font-size: 1.0625rem;
  line-height: 1.7;
}
.values-list { margin-bottom: 2rem; }
.values-list li {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.values-list__icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(42, 167, 223, 0.15);
  color: var(--accent-dark);
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 700;
}
.values-list strong { display: block; color: var(--navy); margin-bottom: 0.125rem; }
.values-list p { font-size: 0.875rem; color: var(--text-muted); }

.about__image-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.about__image-wrap img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.about__quote {
  margin-top: 1.5rem;
  padding: 1.5rem;
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius);
  border-left: 4px solid var(--accent);
}
.about__quote p { font-style: italic; margin-bottom: 0.5rem; }
.about__quote cite { font-size: 0.875rem; opacity: 0.8; font-style: normal; }

/* Partners */
.partners { padding-bottom: 4rem; }
.partners__marquee {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.partners__track {
  display: flex;
  gap: 1rem;
  width: max-content;
  animation: marquee 40s linear infinite;
}
.partners__track:hover { animation-play-state: paused; }
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.partner-pill {
  flex-shrink: 0;
  padding: 0.875rem 1.5rem;
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  border-radius: 100px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--gray-600);
  white-space: nowrap;
}

/* Contact */
.contact__card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-100);
}
.contact__info {
  padding: 3rem;
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-mid) 100%);
  color: var(--white);
}
.contact__info .section__label { color: var(--accent); }
.contact__title {
  font-size: 1.75rem;
  font-weight: 800;
  margin: 0.5rem 0 1rem;
  line-height: 1.25;
}
.contact__info > p { opacity: 0.85; margin-bottom: 2rem; }
.contact__details li {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.contact__details svg { flex-shrink: 0; color: var(--accent); margin-top: 2px; }
.contact__details strong { display: block; font-size: 0.8125rem; opacity: 0.7; margin-bottom: 0.125rem; }
.contact__details a, .contact__details span { font-size: 0.9375rem; }
.contact__details a:hover { color: var(--accent); }

.contact__form {
  padding: 3rem;
}
.contact__form-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 1.5rem;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.form-field {
  display: block;
  margin-bottom: 1rem;
}
.form-field span {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 0.375rem;
}
.form-field input,
.form-field textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  font: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-field textarea { resize: vertical; min-height: 100px; }
.form-note {
  margin-top: 1rem;
  font-size: 0.875rem;
  min-height: 1.25rem;
}
.form-note.is-success { color: #0d9488; }
.form-note.is-error { color: #dc2626; }

/* Footer */
.footer {
  background: var(--navy-deep);
  color: rgba(255, 255, 255, 0.75);
  padding-top: 4rem;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
}
.footer__brand img { margin-bottom: 1rem; opacity: 0.95; }
.footer__brand p { font-size: 0.875rem; line-height: 1.65; max-width: 280px; }
.footer h4 {
  color: var(--white);
  font-size: 0.9375rem;
  margin-bottom: 1rem;
}
.footer__nav ul li { margin-bottom: 0.5rem; }
.footer__nav a {
  font-size: 0.875rem;
  transition: color 0.2s;
}
.footer__nav a:hover { color: var(--accent); }
.footer__contact p { font-size: 0.875rem; margin-bottom: 0.375rem; }
.footer__contact a:hover { color: var(--accent); }
.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.25rem 0;
}
.footer__bottom-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.8125rem;
}
.footer__staging { opacity: 0.5; }

/* Subpages — catalog & PDP */
.page-hero {
  padding: 2rem 0 1.5rem;
  background: linear-gradient(180deg, var(--navy-50) 0%, var(--white) 100%);
  border-bottom: 1px solid var(--border);
}
.page-hero__title {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 800;
  color: var(--navy);
  margin: 0.75rem 0 0.5rem;
}
.page-hero__desc {
  max-width: 640px;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.65;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.5rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.breadcrumb a {
  color: var(--navy);
  text-decoration: none;
}
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb [aria-current="page"] { color: var(--text-muted); }

.nav__list a.is-active {
  color: var(--accent);
  font-weight: 600;
}

.catalog { padding-top: 2rem; }
.catalog__layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 2.5rem;
  align-items: start;
}
.catalog__sidebar-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.catalog-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.catalog-nav__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.625rem 0.875rem;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  color: var(--navy);
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}
.catalog-nav__item:hover {
  background: var(--navy-50);
  color: var(--accent);
}
.catalog-nav__item.is-active {
  background: var(--navy);
  color: var(--white);
  font-weight: 600;
}
.catalog-nav__item.is-active .catalog-nav__count {
  background: rgba(255, 255, 255, 0.2);
  color: var(--white);
}
.catalog-nav__count {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.125rem 0.5rem;
  border-radius: 999px;
  background: var(--navy-50);
  color: var(--text-muted);
}

.catalog__toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.catalog__count {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--navy);
  margin: 0;
}
.catalog__toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}
.catalog__search {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.catalog__search input {
  min-width: 220px;
  padding: 0.5rem 0.875rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 0.875rem;
}
.catalog__search input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}
.catalog__sort select {
  padding: 0.5rem 2rem 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 0.875rem;
  background: var(--white);
  cursor: pointer;
}

.catalog__empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}
.catalog__empty p { margin-bottom: 1rem; }

.pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  margin-top: 2.5rem;
}
.pagination__btn {
  min-width: 40px;
  height: 40px;
  padding: 0 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--white);
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--navy);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, color 0.2s;
}
.pagination__btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.pagination__btn.is-active {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
}
.pagination__dots {
  padding: 0 0.25rem;
  color: var(--text-muted);
}

.catalog-cta {
  padding-top: 0;
  padding-bottom: 4rem;
}
.catalog-cta__inner {
  text-align: center;
  padding: 2.5rem 2rem;
  background: linear-gradient(135deg, var(--navy) 0%, #1a1a4a 100%);
  border-radius: var(--radius-lg);
  color: var(--white);
}
.catalog-cta__inner h2 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}
.catalog-cta__inner p {
  max-width: 520px;
  margin: 0 auto 1.25rem;
  opacity: 0.9;
  font-size: 0.9375rem;
}

/* Product detail */
.pdp-page { padding-top: 2rem; }
.pdp-loading,
.product-not-found {
  text-align: center;
  padding: 4rem 1rem;
}
.product-not-found h1 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--navy);
}
.product-not-found p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.pdp {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
  margin-bottom: 3rem;
}
.pdp__image-main {
  background: var(--navy-50);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border);
}
.pdp__image-main img {
  width: 100%;
  height: auto;
  object-fit: contain;
  max-height: 480px;
}
.pdp__category {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  margin-bottom: 0.5rem;
}
.pdp__category:hover { text-decoration: underline; }
.pdp__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--navy);
  line-height: 1.25;
  margin-bottom: 0.75rem;
}
.pdp__model,
.pdp__brand {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.pdp__stock {
  font-size: 0.875rem;
  font-weight: 600;
  margin: 1rem 0;
  color: var(--text-muted);
}
.pdp__stock--in { color: #0d7a4a; }
.pdp__desc {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 1.5rem;
}
.pdp__features {
  margin-bottom: 1.5rem;
}
.pdp__features h2 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--navy);
}
.pdp__features ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.pdp__features li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.5rem;
  font-size: 0.9375rem;
  color: var(--text-muted);
}
.pdp__features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.pdp__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.pdp__note {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.pdp__legacy {
  font-size: 0.875rem;
  color: var(--accent);
}
.pdp-related .section__title {
  font-size: 1.375rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 1024px) {
  .catalog__layout { grid-template-columns: 1fr; }
  .catalog__sidebar { margin-bottom: 0.5rem; }
  .catalog-nav {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .pdp { grid-template-columns: 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
  .catalog__search input { min-width: 0; flex: 1; }
  .catalog__toolbar-actions { width: 100%; }
  .catalog__search { flex: 1; min-width: 0; }
  .pdp__actions .btn { flex: 1; min-width: 140px; }
}

/* FAB */
.fab {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 900;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: var(--white);
  border-radius: 50%;
  box-shadow: 0 8px 24px var(--accent-glow);
  transition: transform 0.2s, box-shadow 0.2s;
}
.fab:hover {
  transform: scale(1.08);
  box-shadow: 0 12px 32px var(--accent-glow);
}

/* Reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal--delay { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }

/* Responsive */
@media (max-width: 1024px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__visual { order: -1; max-width: 520px; margin: 0 auto; }
  .hero__content { max-width: none; text-align: center; }
  .hero__cta, .hero__stats { justify-content: center; }
  .hero__card--float { left: auto; right: 1rem; bottom: 1rem; }
  .solutions__grid { grid-template-columns: 1fr; }
  .categories__grid { grid-template-columns: repeat(2, 1fr); }
  .products__grid { grid-template-columns: repeat(2, 1fr); }
  .about__grid { grid-template-columns: 1fr; }
  .contact__card { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .process-strip__list { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --topbar-h: auto; }
  .topbar { padding: 0.5rem 0; height: auto; }
  .topbar__right { display: none; }
  .nav {
    position: fixed;
    inset: calc(var(--header-h) + var(--topbar-h)) 0 0 0;
    background: var(--white);
    padding: 1.5rem;
    transform: translateX(100%);
    transition: transform 0.35s var(--ease);
    overflow-y: auto;
    z-index: 999;
  }
  .nav.is-open { transform: translateX(0); }
  .nav__list { flex-direction: column; gap: 0.25rem; }
  .nav__list a { display: block; padding: 0.875rem 1rem; font-size: 1rem; }
  .nav-toggle { display: flex; }
  .header__catalog { display: none; }
  .section { padding: 3.5rem 0; }
  .section__head--row { flex-direction: column; align-items: flex-start; }
  .categories__grid { grid-template-columns: 1fr; }
  .products__grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .process-strip__list { grid-template-columns: 1fr; }
  .hero { padding: 2.5rem 0 3rem; }
  .hero__stats { gap: 1.5rem; flex-wrap: wrap; }
  .contact__info, .contact__form { padding: 2rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .partners__track { animation: none; flex-wrap: wrap; width: 100%; justify-content: center; }
}