/* ========================================
   Baycsa - Químicos Industriales Reiniger
   ======================================== */

:root {
  --color-primary: #00AEEF;
  --color-primary-dark: #0090C8;
  --color-primary-light: #E6F7FD;
  --color-accent: #0066A1;
  --color-dark: #0A1628;
  --color-dark-soft: #1A2942;
  --color-gray-900: #1E293B;
  --color-gray-700: #334155;
  --color-gray-500: #64748B;
  --color-gray-300: #CBD5E1;
  --color-gray-100: #F1F5F9;
  --color-white: #FFFFFF;
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #DC2626;

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Outfit', 'Inter', sans-serif;

  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -2px rgba(0,0,0,.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -4px rgba(0,0,0,.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,.1), 0 8px 10px -6px rgba(0,0,0,.1);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --header-height: 72px;
  --transition: 0.25s cubic-bezier(.4,0,.2,1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-gray-700);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-title span { color: var(--color-primary); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(0,174,239,.35);
}
.btn--primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0,174,239,.4);
}
.btn--outline {
  border: 2px solid rgba(255,255,255,.3);
  color: var(--color-white);
  backdrop-filter: blur(4px);
}
.btn--outline:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.5);
}
.btn:disabled {
  cursor: not-allowed;
  opacity: .7;
  transform: none;
}
.btn--full { width: 100%; }

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}
.header--scrolled {
  border-bottom-color: var(--color-gray-100);
  box-shadow: var(--shadow-sm);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.header__logo img { height: 36px; width: auto; }

.nav__list {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav__link {
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-gray-700);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.nav__link:hover { color: var(--color-primary); background: var(--color-primary-light); }
.nav__link--cta {
  background: var(--color-primary);
  color: var(--color-white) !important;
  margin-left: 8px;
}
.nav__link--cta:hover { background: var(--color-primary-dark); }
.nav__link--active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: all var(--transition);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + 48px) 0 80px;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-soft) 50%, #0D2847 100%);
  z-index: -2;
}
.hero__bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 80%, rgba(0,174,239,.15) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(0,102,161,.2) 0%, transparent 50%);
}
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: .5;
}
.hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}
.hero__badge {
  display: inline-block;
  padding: 8px 16px;
  background: rgba(0,174,239,.15);
  border: 1px solid rgba(0,174,239,.3);
  border-radius: 100px;
  font-size: 13px;
  color: var(--color-primary);
  margin-bottom: 24px;
  letter-spacing: 0.05em;
}
.hero__badge strong { font-weight: 700; }
.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5.5vw, 3.75rem);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.1;
  margin-bottom: 20px;
}
.hero__title span {
  background: linear-gradient(90deg, var(--color-primary), #4DD4FF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero__subtitle {
  font-size: 18px;
  color: rgba(255,255,255,.75);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 560px;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 56px;
}
.hero__stats {
  display: flex;
  gap: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,.1);
}
.stat__number {
  display: block;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}
.stat__label {
  font-size: 13px;
  color: rgba(255,255,255,.5);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 4px;
}

/* About */
.about { background: var(--color-gray-100); }
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.about__text {
  margin-bottom: 16px;
  color: var(--color-gray-700);
  line-height: 1.8;
}
.about__features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.feature-card {
  background: var(--color-white);
  padding: 28px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.feature-card__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  margin-bottom: 16px;
}
.feature-card__icon svg { width: 22px; height: 22px; }
.feature-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 14px;
  color: var(--color-gray-500);
  line-height: 1.6;
}

/* Certifications */
.certifications {
  padding: 48px 0;
  background: var(--color-dark);
}
.certifications__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.cert-badge {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-lg);
}
.cert-badge__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-size: 22px;
  flex-shrink: 0;
}
.cert-badge__icon--bio { background: rgba(16,185,129,.15); }
.cert-badge__icon--sag { background: rgba(16,185,129,.15); }
.cert-badge__icon--isp { background: rgba(0,174,239,.15); color: var(--color-primary); font-weight: 700; font-size: 20px; }
.cert-badge strong {
  display: block;
  color: var(--color-white);
  font-size: 15px;
  margin-bottom: 4px;
}
.cert-badge p {
  font-size: 13px;
  color: rgba(255,255,255,.55);
  line-height: 1.5;
}

/* Catalog page */
.catalog-page {
  padding-top: var(--header-height);
  min-height: 100vh;
  background: var(--color-gray-100);
}

.catalog-page__hero {
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-soft) 100%);
  padding: 48px 0 40px;
}
.catalog-page__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: 8px;
}
.catalog-page__title span { color: var(--color-primary); }
.catalog-page__subtitle {
  color: rgba(255,255,255,.65);
  max-width: 520px;
}

.catalog-page__layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 32px;
  padding-top: 32px;
  padding-bottom: 64px;
  align-items: start;
}

.sidebar-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  margin-bottom: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-dark);
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-md);
  grid-column: 1 / -1;
}
.sidebar-toggle svg { width: 18px; height: 18px; }

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10,22,40,.5);
  z-index: 900;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.sidebar-overlay--visible {
  opacity: 1;
  pointer-events: all;
}

.catalog-sidebar {
  position: sticky;
  top: calc(var(--header-height) + 24px);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-100);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.catalog-sidebar__header {
  padding: 20px 20px 12px;
  border-bottom: 1px solid var(--color-gray-100);
}
.catalog-sidebar__header h2 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-dark);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.sidebar__nav {
  display: flex;
  flex-direction: column;
  padding: 8px;
  max-height: calc(100vh - var(--header-height) - 120px);
  overflow-y: auto;
}
.sidebar__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 12px 14px;
  text-align: left;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-gray-700);
  border-radius: var(--radius-md);
  transition: all var(--transition);
  border-left: 3px solid transparent;
}
.sidebar__item:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.sidebar__item--active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-left-color: var(--color-primary);
  font-weight: 600;
}
.sidebar__item-name {
  flex: 1;
  line-height: 1.4;
}
.sidebar__item-count {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-gray-500);
  background: var(--color-gray-100);
  padding: 2px 8px;
  border-radius: 100px;
  flex-shrink: 0;
}
.sidebar__item--active .sidebar__item-count {
  background: rgba(0,174,239,.2);
  color: var(--color-primary-dark);
}

.catalog-main {
  min-width: 0;
}
.catalog-main__toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}
.catalog-main__category {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 4px;
}
.search-box--compact {
  margin-bottom: 0;
  min-width: 280px;
  flex: 1;
  max-width: 400px;
}
.search-box--compact .search-box__input {
  padding: 11px 16px 11px 44px;
}

body.sidebar-open { overflow: hidden; }

/* Catalog (legacy section styles kept for product cards) */
.catalog__header { margin-bottom: 40px; }
.catalog__intro {
  color: var(--color-gray-500);
  max-width: 560px;
  margin-top: 8px;
}
.catalog__toolbar { margin-bottom: 24px; }

.search-box {
  position: relative;
  margin-bottom: 20px;
}
.search-box__icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: var(--color-gray-500);
  pointer-events: none;
}
.search-box__input {
  width: 100%;
  padding: 14px 16px 14px 48px;
  font-size: 15px;
  font-family: inherit;
  border: 2px solid var(--color-gray-100);
  border-radius: var(--radius-md);
  background: var(--color-white);
  transition: all var(--transition);
  outline: none;
}
.search-box__input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0,174,239,.15);
}
.search-box__input::placeholder { color: var(--color-gray-500); }

.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip {
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-gray-700);
  background: var(--color-gray-100);
  border-radius: 100px;
  transition: all var(--transition);
  white-space: nowrap;
}
.chip:hover { background: var(--color-primary-light); color: var(--color-primary); }
.chip--active {
  background: var(--color-primary);
  color: var(--color-white);
}
.chip--active:hover { background: var(--color-primary-dark); color: var(--color-white); }

.results-count {
  font-size: 14px;
  color: var(--color-gray-500);
  margin-bottom: 20px;
  display: block;
}

.active-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  margin-bottom: 24px;
  background: var(--color-white);
  border: 1px solid rgba(0,174,239,.2);
  border-radius: var(--radius-md);
  color: var(--color-gray-700);
  box-shadow: var(--shadow-sm);
}
.active-filter[hidden] { display: none; }
.active-filter strong { color: var(--color-dark); }
.active-filter__clear {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
}
.active-filter__clear:hover { color: var(--color-primary-dark); }

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-lg);
  padding: 0 28px 28px;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.product-card__image {
  display: block;
  width: calc(100% + 56px);
  max-width: none;
  height: 160px;
  margin: 0 -28px 16px;
  padding: 16px 24px;
  object-fit: contain;
  background: linear-gradient(180deg, var(--color-gray-50) 0%, var(--color-white) 100%);
  border-bottom: 1px solid var(--color-gray-100);
}
.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.product-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.product-card:hover::before { transform: scaleX(1); }

.product-card__top {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.product-card__code {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.04em;
  flex-shrink: 0;
}
.product-card__cert {
  font-size: 10px;
  font-weight: 600;
  color: var(--color-success);
  background: rgba(16,185,129,.1);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(16,185,129,.2);
  flex-shrink: 0;
  margin-left: auto;
  white-space: nowrap;
}
.product-card__name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
  line-height: 1.3;
}
.product-card__desc {
  font-size: 14px;
  color: var(--color-gray-500);
  line-height: 1.6;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.product-card__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 1px solid var(--color-gray-100);
}
.product-card__category {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-gray-500);
}
.product-card__formats {
  font-size: 12px;
  color: var(--color-gray-500);
}

.empty-state {
  text-align: center;
  padding: 64px 24px;
  color: var(--color-gray-500);
}
.empty-state svg {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  opacity: .4;
}
.empty-state h3 {
  font-size: 18px;
  color: var(--color-dark);
  margin-bottom: 8px;
}

/* Industries */
.industries {
  background: var(--color-gray-100);
}
.industries__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 40px;
}
.industry-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  cursor: pointer;
}
.industry-card:hover,
.industry-card:focus-visible {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.industry-card:focus-visible {
  outline: 3px solid rgba(0,174,239,.25);
  outline-offset: 3px;
}
.industry-card__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  color: var(--color-accent);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}
.industry-card__svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}
.industry-card__name {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-dark);
}
.industry-card__count {
  font-size: 12px;
  color: var(--color-gray-500);
}

/* Contact */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.contact__info p {
  color: var(--color-gray-500);
  margin-bottom: 32px;
  line-height: 1.7;
}
.contact__details { display: flex; flex-direction: column; gap: 20px; }
.contact__item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.contact__item svg {
  width: 22px;
  height: 22px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}
.contact__item strong {
  display: block;
  font-size: 13px;
  color: var(--color-gray-500);
  margin-bottom: 2px;
}
.contact__item a,
.contact__item span {
  color: var(--color-dark);
  font-weight: 500;
}
.contact__item a:hover { color: var(--color-primary); }

.contact__form {
  background: var(--color-gray-100);
  padding: 36px;
  border-radius: var(--radius-xl);
}
.form-group { margin-bottom: 20px; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 6px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  font-size: 15px;
  font-family: inherit;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  background: var(--color-white);
  outline: none;
  transition: all var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0,174,239,.15);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-note {
  font-size: 12px;
  color: var(--color-gray-500);
  text-align: center;
  margin-top: 12px;
}
.form-status {
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  margin-top: 10px;
}
.form-status:empty { display: none; }
.form-status--info { color: var(--color-gray-700); }
.form-status--success { color: var(--color-success); }
.form-status--error { color: var(--color-error); }

/* Footer */
.footer {
  background: var(--color-dark);
  color: rgba(255,255,255,.6);
  padding-top: 64px;
}
.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer__brand p {
  font-size: 14px;
  margin-top: 16px;
  line-height: 1.7;
}
.footer__links h4 {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-white);
  margin-bottom: 16px;
}
.footer__links li { margin-bottom: 10px; }
.footer__links a {
  font-size: 14px;
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--color-primary); }
.reiniger-badge {
  display: inline-block;
  font-weight: 800;
  font-size: 16px;
  color: var(--color-primary) !important;
  letter-spacing: 0.08em;
}
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 0;
}
.footer__bottom p {
  font-size: 13px;
  text-align: center;
}

/* Modal */
.modal {
  border: none;
  padding: 0;
  max-width: 560px;
  width: calc(100% - 32px);
  margin: auto;
  position: fixed;
  inset: 0;
  height: fit-content;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  background: var(--color-white);
}
.modal::backdrop {
  background: rgba(10,22,40,.6);
  backdrop-filter: blur(4px);
}
.modal__content { padding: 36px; position: relative; }
.modal__hero {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 4px;
}
.modal__image {
  width: 96px;
  height: 120px;
  object-fit: contain;
  flex-shrink: 0;
  padding: 8px;
  background: var(--color-gray-50);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-100);
}
.modal__image[hidden] { display: none; }
.modal__intro { min-width: 0; }
.modal__close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--color-gray-500);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.modal__close:hover { background: var(--color-gray-100); color: var(--color-dark); }
.modal__code {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.06em;
}
.modal__title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-dark);
  margin: 8px 0;
}
.modal__category {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-gray-500);
  background: var(--color-gray-100);
  padding: 4px 12px;
  border-radius: 100px;
}
.modal__description {
  font-size: 15px;
  color: var(--color-gray-700);
  line-height: 1.7;
  margin: 20px 0;
}
.modal__section { margin-bottom: 20px; }
.modal__section h3 {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-gray-500);
  margin-bottom: 8px;
}
.modal__section p {
  font-size: 14px;
  color: var(--color-gray-700);
  line-height: 1.7;
}
.modal__formats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.modal__formats span {
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  background: var(--color-primary-light);
  color: var(--color-accent);
  border-radius: var(--radius-sm);
}
.modal__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.modal__tags span {
  font-size: 12px;
  padding: 4px 10px;
  background: var(--color-gray-100);
  color: var(--color-gray-700);
  border-radius: 100px;
}
.modal__cert {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: rgba(16,185,129,.08);
  border: 1px solid rgba(16,185,129,.2);
  border-radius: var(--radius-md);
  font-size: 13px;
  color: var(--color-gray-700);
  margin-bottom: 20px;
}
.modal__cert[hidden] {
  display: none !important;
}
.modal__cert svg { width: 18px; height: 18px; color: var(--color-success); flex-shrink: 0; }
.modal__footer { padding-top: 8px; }

/* Animations */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
.product-card {
  animation: fadeInUp 0.4s ease both;
}

/* Responsive */
@media (max-width: 1024px) {
  .about__grid,
  .contact__grid { grid-template-columns: 1fr; gap: 40px; }
  .certifications__grid { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr 1fr; }

  .catalog-page__layout {
    grid-template-columns: 1fr;
  }
  .sidebar-toggle { display: flex; }
  .catalog-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(320px, 88vw);
    z-index: 950;
    border-radius: 0;
    transform: translateX(-100%);
    transition: transform var(--transition);
    top: var(--header-height);
  }
  .catalog-sidebar--open { transform: translateX(0); }
  .sidebar-overlay { display: block; }
  .sidebar__nav { max-height: none; flex: 1; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-100);
    padding: 16px;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
  }
  .nav--open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  .nav__list {
    flex-direction: column;
    align-items: stretch;
  }
  .nav__link { padding: 12px 16px; }
  .nav__link--cta { margin-left: 0; text-align: center; }
  .menu-toggle { display: flex; }
  .menu-toggle--active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .menu-toggle--active span:nth-child(2) { opacity: 0; }
  .menu-toggle--active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

  .hero__stats { gap: 32px; }
  .about__features { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; gap: 32px; }
  .contact__form { padding: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}