/* ============================================
   CORE VALVE — Commercial Industrial Landing
   ============================================ */

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

:root {
  --orange:     #e65c1e;
  --orange-d:   #c44e15;
  --orange-l:   #ff7a42;
  --navy:       #1c2b3a;
  --navy-d:     #131f2b;
  --blue:       #3d7abf;
  --grey-1:     #f4f5f7;
  --grey-2:     #e8eaed;
  --grey-3:     #c4c9d1;
  --grey-4:     #8a919e;
  --text:       #2c3340;
  --text-light: #5a6373;
  --white:      #ffffff;
  --border:     #dde0e6;
  --font:       'Roboto', system-ui, sans-serif;
  --font-cond:  'Roboto Condensed', sans-serif;
  --shadow-sm:  0 1px 4px rgba(0,0,0,0.08);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.1);
  --shadow-lg:  0 8px 32px rgba(0,0,0,0.12);
  --radius:     4px;
  --radius-lg:  8px;
  --transition: 0.25s ease;
}

html { scroll-behavior: smooth; }

body {
  background: var(--white);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

.section { padding: 80px 0; }
.section--grey { background: var(--grey-1); }

/* ---------- TYPOGRAPHY ---------- */
.eyebrow {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
  display: block;
  margin-bottom: 10px;
}

.section-title {
  font-family: var(--font-cond);
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 15px;
  color: var(--text-light);
  max-width: 520px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius);
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--orange {
  background: var(--orange);
  color: #fff;
}
.btn--orange:hover { background: var(--orange-d); }

.btn--outline-white {
  background: transparent;
  border: 2px solid rgba(255,255,255,0.6);
  color: #fff;
}
.btn--outline-white:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
}

.btn--orange-outline {
  background: transparent;
  border: 1.5px solid var(--orange);
  color: var(--orange);
  font-size: 13px;
  padding: 8px 18px;
}
.btn--orange-outline:hover {
  background: var(--orange);
  color: #fff;
}

.btn--sm { padding: 8px 18px; font-size: 13px; }
.btn--full { width: 100%; }

/* ---------- TOP BAR ---------- */
.topbar {
  background: var(--navy-d);
  padding: 8px 0;
}
.topbar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.topbar span {
  font-size: 12px;
  color: rgba(255,255,255,0.65);
}

/* ---------- NAV ---------- */
.nav {
  background: var(--navy);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  transition: box-shadow var(--transition);
}
.nav--scrolled { box-shadow: 0 4px 20px rgba(0,0,0,0.25); }

.nav__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  margin-right: auto;
  flex-shrink: 0;
}

.nav__logo-icon { width: 36px; height: 36px; flex-shrink: 0; }
.nav__logo-icon svg { width: 100%; height: 100%; }

.nav__logo-name {
  display: block;
  font-family: var(--font-cond);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #fff;
  line-height: 1;
}
.nav__logo-sub {
  display: block;
  font-size: 10px;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.05em;
  margin-top: 2px;
}

.nav__links {
  display: flex;
  gap: 6px;
}
.nav__links a {
  font-size: 13px;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: var(--radius);
  transition: all var(--transition);
  white-space: nowrap;
}
.nav__links a:hover {
  color: #fff;
  background: rgba(255,255,255,0.08);
}

/* ---------- HERO ---------- */
.hero {
  background: linear-gradient(135deg, var(--navy-d) 0%, #243448 40%, #2a3f55 100%);
  min-height: 560px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 80% 50%, rgba(230, 92, 30, 0.12) 0%, transparent 60%);
}

.hero__content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding-top: 60px;
  padding-bottom: 60px;
}

.hero__cert-badge {
  display: inline-block;
  background: rgba(230, 92, 30, 0.2);
  border: 1px solid rgba(230, 92, 30, 0.4);
  color: #ff9060;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
}

.hero__title {
  font-family: var(--font-cond);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero__sub {
  font-size: 15px;
  color: rgba(255,255,255,0.65);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 440px;
}

.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero__image-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: end;
}

.hero__img {
  width: 100%;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.05);
  object-fit: contain;
  padding: 16px;
  border: 1px solid rgba(255,255,255,0.1);
}

.hero__img--1 { max-height: 220px; }
.hero__img--2 { max-height: 180px; margin-bottom: 20px; }

/* ---------- STATS STRIP ---------- */
.stats-strip {
  background: var(--orange);
  padding: 20px 0;
}

.stats-strip__grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  flex: 1;
  border-right: 1px solid rgba(255,255,255,0.25);
  padding: 4px 16px;
}
.stat:last-child { border-right: none; }

.stat strong {
  font-family: var(--font-cond);
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
  margin-bottom: 4px;
}
.stat span {
  font-size: 11px;
  color: rgba(255,255,255,0.8);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ---------- ABOUT ---------- */
.about__inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 70px;
  align-items: center;
}

.about__text p {
  color: var(--text-light);
  margin-bottom: 16px;
  font-size: 15px;
}

.about__features {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.feature-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.feature-item__icon {
  width: 24px;
  height: 24px;
  background: var(--orange);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.feature-item strong {
  display: block;
  font-size: 14px;
  color: var(--navy);
  margin-bottom: 2px;
}
.feature-item span {
  font-size: 13px;
  color: var(--text-light);
}

/* About panel (replaces image) */
.about__panel {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--white);
  box-shadow: var(--shadow-md);
}

.about__panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--navy);
  padding: 14px 20px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
}
.about__panel-year {
  color: var(--orange);
  font-weight: 700;
}

.about__kpi-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  padding: 20px;
  gap: 16px;
}

.kpi {}
.kpi__value {
  font-family: var(--font-cond);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
  margin-bottom: 4px;
}
.kpi__label {
  font-size: 11px;
  color: var(--text-light);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.kpi__bar {
  height: 3px;
  background: var(--grey-2);
  border-radius: 2px;
  overflow: hidden;
}
.kpi__bar-fill {
  height: 100%;
  background: var(--orange);
  border-radius: 2px;
}

.about__cert-row {
  display: flex;
  gap: 0;
  border-top: 1px solid var(--border);
}
.about__cert-row .cert-box {
  flex: 1;
  border: none;
  border-right: 1px solid var(--border);
  border-radius: 0;
  padding: 10px 8px;
}
.about__cert-row .cert-box:last-child { border-right: none; }

.about__panel-footer {
  border-top: 1px solid var(--border);
  padding: 14px 16px 10px;
  background: var(--grey-1);
}

.about__cert {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.cert-box {
  flex: 1;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  text-align: center;
  background: var(--white);
}
.cert-box strong {
  display: block;
  font-family: var(--font-cond);
  font-size: 16px;
  color: var(--navy);
  font-weight: 700;
}
.cert-box span {
  font-size: 11px;
  color: var(--text-light);
}

/* ---------- CATALOG HEADER ---------- */
.catalog-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 32px;
}
.catalog-header .section-title { margin-bottom: 0; }

/* ---------- CATEGORY TABS ---------- */
.cat-tabs {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  overflow: hidden;
  background: var(--grey-2);
  margin-bottom: 0;
}

.cat-tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 20px;
  font-family: var(--font-cond);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-light);
  background: transparent;
  border: none;
  border-right: 1px solid var(--border);
  cursor: pointer;
  letter-spacing: 0.03em;
  transition: all var(--transition);
  white-space: nowrap;
}
.cat-tab:last-child { border-right: none; }
.cat-tab:hover { background: var(--white); color: var(--navy); }

.cat-tab.active {
  background: var(--navy);
  color: #fff;
}
.cat-tab.active .cat-tab__badge { opacity: 1; }

.cat-tab__badge {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 2px 7px;
  border-radius: 3px;
  opacity: 0.7;
}
.cat-tab__badge--din    { background: var(--orange); color: #fff; }
.cat-tab__badge--jis    { background: var(--blue); color: #fff; }
.cat-tab__badge--flanged { background: #0e7a6e; color: #fff; }
.cat-tab__badge--special { background: #6b46c1; color: #fff; }

/* ---------- CATEGORY PANELS ---------- */
.cat-panel {
  display: none;
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  overflow: hidden;
  margin-bottom: 0;
}
.cat-panel.active { display: block; }

.cat-panel__info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: #f0f4f8;
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
}

.cat-panel__info-text strong {
  display: block;
  font-family: var(--font-cond);
  font-size: 14px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 3px;
}
.cat-panel__info-text span {
  font-size: 12px;
  color: var(--text-light);
}

.cat-panel__info-stats {
  display: flex;
  gap: 24px;
  flex-shrink: 0;
}
.cat-panel__info-stats span {
  font-size: 12px;
  color: var(--text-light);
  white-space: nowrap;
}
.cat-panel__info-stats b {
  color: var(--navy);
  font-weight: 700;
}

/* ---------- PRODUCTS ---------- */
.std-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 4px 12px;
  border-radius: 3px;
  text-transform: uppercase;
  flex-shrink: 0;
}
.std-tag--din { background: var(--orange); color: #fff; }
.std-tag--jis { background: var(--blue); color: #fff; }
.std-tag--spec { background: #6b46c1; color: #fff; }

.products__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  overflow: hidden;
}

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

/* Fade-in animation */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

.product-card {
  background: var(--white);
  transition: background var(--transition), box-shadow var(--transition);
}
.product-card:hover { background: #fafbff; }

.product-card__img-wrap {
  width: 100%;
  height: 160px;
  background: var(--grey-1);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 12px;
}
.product-card__img-wrap img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
}

.product-card__img-wrap.img-placeholder svg {
  width: 100%;
  height: 100%;
  max-height: 120px;
}

.product-card__body { padding: 20px 22px 22px; }

.product-card__std {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 2px 9px;
  border-radius: 2px;
  background: rgba(230,92,30,0.1);
  color: var(--orange);
  margin-bottom: 8px;
}
.product-card__std--jis {
  background: rgba(61,122,191,0.1);
  color: var(--blue);
}

.product-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.product-card__code {
  font-family: monospace;
  font-size: 10px;
  color: var(--text-light);
  letter-spacing: 0.05em;
  background: var(--grey-1);
  padding: 2px 7px;
  border-radius: 2px;
  border: 1px solid var(--grey-2);
}

.product-card__body h4 {
  font-family: var(--font-cond);
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
  line-height: 1.3;
}

.product-card__body p {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 12px;
}

/* Spec Table */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 16px;
  font-size: 12px;
}
.spec-table tr {
  border-top: 1px solid var(--grey-2);
}
.spec-table tr:first-child { border-top: none; }
.spec-table td {
  padding: 5px 0;
  vertical-align: top;
  line-height: 1.4;
}
.spec-table td:first-child {
  color: var(--text-light);
  width: 46%;
  padding-right: 8px;
}
.spec-table td:last-child {
  color: var(--navy);
  font-weight: 500;
}

/* Compact card (no image) */
.product-card--compact .product-card__body {
  padding: 22px;
}
.product-card__icon-lg {
  width: 60px;
  height: 60px;
  background: #fff5f0;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  border: 1px solid rgba(230,92,30,0.15);
  padding: 10px;
}
.product-card__icon-lg svg { width: 100%; height: 100%; }

.product-card--compact h4 {
  font-family: var(--font-cond);
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}
.product-card--compact p {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 12px;
}

.product-card__link {
  font-size: 13px;
  font-weight: 500;
  color: var(--orange);
  text-decoration: none;
  transition: gap var(--transition);
  display: inline-flex;
  gap: 4px;
}
.product-card__link:hover { gap: 8px; }

/* ---------- STANDARDS & APPLICATIONS ---------- */
.standards__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.app-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.app-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--orange);
}

.app-card__icon {
  font-size: 28px;
  margin-bottom: 14px;
  display: block;
}

.app-card h4 {
  font-family: var(--font-cond);
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}
.app-card p {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.7;
}

.cert-strip {
  background: var(--navy);
  border-radius: var(--radius-lg);
  padding: 28px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.cert-item {
  text-align: center;
  flex: 1;
}
.cert-item strong {
  display: block;
  font-family: var(--font-cond);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--orange);
  margin-bottom: 4px;
}
.cert-item span {
  font-size: 12px;
  color: rgba(255,255,255,0.55);
}

.cert-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.12);
}

/* ---------- WHY CHOOSE US ---------- */
.why__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.why-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-top: 3px solid var(--orange);
  border-radius: 0 0 var(--radius) var(--radius);
  padding: 28px 24px;
  transition: box-shadow var(--transition);
}
.why-card:hover { box-shadow: var(--shadow-md); }

.why-card__num {
  font-family: var(--font-cond);
  font-size: 2rem;
  font-weight: 700;
  color: rgba(230,92,30,0.15);
  line-height: 1;
  margin-bottom: 10px;
}
.why-card h4 {
  font-family: var(--font-cond);
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
}
.why-card p {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.7;
}

/* ---------- CONTACT ---------- */
.contact { background: var(--grey-1); }

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 70px;
  align-items: start;
}

.contact__info p {
  color: var(--text-light);
  margin-bottom: 28px;
  font-size: 15px;
}

.contact__details {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact__details li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.contact__icon {
  font-size: 18px;
  margin-top: 2px;
  flex-shrink: 0;
}
.contact__details strong {
  display: block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 2px;
}
.contact__details span {
  font-size: 14px;
  color: var(--text);
}

/* Form */
.contact__form {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.form-group input,
.form-group textarea,
.form-group select {
  background: var(--grey-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 11px 14px;
  font-family: var(--font);
  font-size: 14px;
  color: var(--text);
  outline: none;
  transition: border-color var(--transition), background var(--transition);
  resize: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--orange);
  background: var(--white);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--grey-3); }

.form-error-message {
  margin: 2px 0 0;
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1px solid #f2a2a2;
  background: #fff2f2;
  color: #a22020;
  font-size: 13px;
  line-height: 1.5;
}

.form-success-message {
  margin: 2px 0 0;
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1px solid #86cfa2;
  background: #eaf8f0;
  color: #0f6a37;
  font-size: 13px;
  line-height: 1.5;
}

/* ---------- FOOTER ---------- */
.footer {
  background: var(--navy-d);
  padding-top: 60px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 50px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.footer__logo span {
  font-family: var(--font-cond);
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.08em;
}

.footer__brand p {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 280px;
}

.footer__certs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.footer__certs span {
  font-size: 11px;
  font-weight: 500;
  color: rgba(255,255,255,0.5);
  border: 1px solid rgba(255,255,255,0.15);
  padding: 3px 10px;
  border-radius: 20px;
  letter-spacing: 0.05em;
}

.footer__links h5 {
  font-family: var(--font-cond);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: 14px;
}

.footer__links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer__links ul a,
.footer__links ul li {
  font-size: 13px;
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  transition: color var(--transition);
  display: block;
}
.footer__links ul a:hover { color: #fff; }

.footer__bottom { padding: 16px 0; }
.footer__bottom__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer__bottom span {
  font-size: 12px;
  color: rgba(255,255,255,0.3);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {
  .hero__content { grid-template-columns: 1fr; }
  .hero__image-block { display: none; }
  .about__inner { grid-template-columns: 1fr; }
  .products__grid { grid-template-columns: repeat(2, 1fr); }
  .products__grid--4 { grid-template-columns: repeat(2, 1fr); }
  .why__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .standards__grid { grid-template-columns: repeat(2, 1fr); }
  .cert-strip { flex-wrap: wrap; gap: 16px; }
  .cert-divider { display: none; }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .section { padding: 56px 0; }
  .topbar { display: none; }
  .nav__links { display: none; }
  .nav__inner { gap: 16px; }
  .stats-strip__grid { flex-wrap: wrap; }
  .stat { min-width: calc(50% - 20px); border-right: none; border-bottom: 1px solid rgba(255,255,255,0.25); }
  .stat:nth-last-child(-n+2) { border-bottom: none; }
  .products__grid { grid-template-columns: 1fr; }
  .products__grid--4 { grid-template-columns: 1fr 1fr; }
  .standards__grid { grid-template-columns: 1fr; }
  .why__grid { grid-template-columns: 1fr; }
  .contact__inner { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; }
  .footer__bottom__inner { flex-direction: column; gap: 6px; text-align: center; }
  .product-category__header { flex-direction: column; align-items: flex-start; gap: 8px; }
  .product-category__header p { margin-left: 0; }
}