/* ─────────────────────────────────────────
   VR Coatings — Global CSS
   Theme: Light Blue & White, Industrial-clean
   ───────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@400;600;700;800;900&family=Barlow:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  --blue-dark: #0a3566;
  --blue-mid: #1356a8;
  --blue-bright: #1a72d1;
  --blue-light: #daeaf8;
  --blue-pale: #f0f7ff;
  --sky: #e8f4fd;
  --yellow: #f5b800;
  --yellow-light: #fff8e0;
  --white: #ffffff;
  --gray-bg: #f5f8fc;
  --gray-border: #dde6f0;
  --gray-text: #5a6e84;
  --dark: #0d1f33;
  --success: #16a34a;
  --font-head: 'Barlow Condensed', sans-serif;
  --font-body: 'Barlow', sans-serif;
  --shadow-sm: 0 2px 8px rgba(10, 53, 102, .08);
  --shadow-md: 0 6px 24px rgba(10, 53, 102, .12);
  --shadow-lg: 0 16px 48px rgba(10, 53, 102, .16);
  --radius: 12px;
  --radius-lg: 20px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

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

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

ul,
ol {
  list-style: none;
}

input,
select,
textarea,
button {
  font-family: var(--font-body);
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--gray-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--blue-mid);
  border-radius: 3px;
}

/* ── TYPOGRAPHY ── */
h1,
h2,
h3,
h4,
h5 {
  font-family: var(--font-head);
  line-height: 1.1;
  color: var(--blue-dark);
}

h1 {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 800;
}

h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.8rem);
  font-weight: 800;
}

h3 {
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  font-weight: 700;
}

h4 {
  font-size: 1.1rem;
  font-weight: 700;
}

p {
  color: var(--gray-text);
  line-height: 1.7;
}

/* ── LAYOUT ── */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 5%;
}

.section {
  padding: 80px 0;
}

.section-sm {
  padding: 48px 0;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ── BADGES / LABELS ── */
.section-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--blue-bright);
  margin-bottom: 10px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.badge-blue {
  background: var(--blue-light);
  color: var(--blue-dark);
}

.badge-yellow {
  background: var(--yellow-light);
  color: #7a5800;
}

.badge-green {
  background: #dcfce7;
  color: #166534;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.3px;
  cursor: pointer;
  transition: all .25s;
  border: 2px solid transparent;
  font-family: var(--font-body);
}

.btn-primary {
  background: var(--blue-dark);
  color: var(--white);
  border-color: var(--blue-dark);
}

.btn-primary:hover {
  background: var(--blue-bright);
  border-color: var(--blue-bright);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--blue-dark);
  border-color: var(--blue-dark);
}

.btn-outline:hover {
  background: var(--blue-dark);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-yellow {
  background: var(--yellow);
  color: var(--blue-dark);
  border-color: var(--yellow);
}

.btn-yellow:hover {
  background: #e0a700;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 184, 0, .35);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
}

.btn svg {
  width: 16px;
  height: 16px;
  transition: transform .2s;
}

.btn:hover svg {
  transform: translateX(3px);
}

/* ── CARDS ── */
.card {
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: all .3s;
  overflow: hidden;
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.card-header {
  background: linear-gradient(135deg, var(--blue-dark), var(--blue-bright));
  padding: 28px;
  position: relative;
}

.card-body {
  padding: 24px;
}

/* ── PRODUCT VISUAL PLACEHOLDER ── */
.product-visual {
  background: linear-gradient(135deg, var(--sky) 0%, var(--blue-light) 100%);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.product-visual-icon {
  font-size: 80px;
  opacity: .85;
  user-select: none;
}

.product-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, .5) 0%, transparent 70%);
}

/* ── SPEC TABLE ── */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.spec-table tr:nth-child(even) {
  background: var(--gray-bg);
}

.spec-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--gray-border);
}

.spec-table td:first-child {
  font-weight: 600;
  color: var(--blue-dark);
  width: 45%;
}

.spec-table td:last-child {
  color: var(--gray-text);
}

/* ── VIDEO GRID ── */
.video-thumb {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--dark);
  aspect-ratio: 16/9;
  cursor: pointer;
}

.video-thumb::after {
  content: '▶';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: white;
  background: rgba(0, 0, 0, .35);
  transition: background .2s;
}

.video-thumb:hover::after {
  background: rgba(19, 86, 168, .6);
}

.video-thumb iframe {
  width: 100%;
  height: 100%;
  border: none;
  position: absolute;
  inset: 0;
  display: none;
}

.video-thumb.playing iframe {
  display: block;
}

.video-thumb.playing::after {
  display: none;
}

.video-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--blue-dark);
  margin-top: 10px;
  line-height: 1.4;
}

/* ── NAV ── */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--gray-border);
  height: 66px;
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 66px;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 5%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-logo-box {
  width: 40px;
  height: 40px;
  background: var(--blue-dark);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 16px;
  color: var(--yellow);
  letter-spacing: -1px;
}

.nav-logo-text strong {
  display: block;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  color: var(--blue-dark);
  letter-spacing: .5px;
  line-height: 1;
}

.nav-logo-text span {
  font-size: 10px;
  color: var(--gray-text);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 8px;
  color: var(--blue-dark);
  transition: all .2s;
}

.nav-links a:hover,
.nav-links a.active {
  background: var(--blue-pale);
  color: var(--blue-bright);
}

.nav-cta {
  background: var(--blue-dark) !important;
  color: var(--white) !important;
  padding: 8px 18px !important;
}

.nav-cta:hover {
  background: var(--blue-bright) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--blue-dark);
  border-radius: 2px;
  transition: all .3s;
}

/* ── BREADCRUMB ── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--gray-text);
  padding: 16px 0;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--blue-bright);
}

.breadcrumb span {
  color: var(--gray-text);
}

/* ── HERO ── */
.page-hero {
  --hero-bg-image: none;
  background-image:
    linear-gradient(135deg, rgba(10, 53, 102, .92) 0%, rgba(14, 48, 96, .9) 50%, rgba(26, 74, 140, .88) 100%),
    var(--hero-bg-image);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 130px 0 70px;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(3, 20, 43, .2) 0%, rgba(3, 20, 43, .45) 100%),
    radial-gradient(circle at 70% 50%, rgba(26, 114, 209, .24) 0%, transparent 60%),
    radial-gradient(circle at 20% 80%, rgba(245, 184, 0, .12) 0%, transparent 40%);
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  opacity: .04;
  pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, .8) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .8) 1px, transparent 1px);
  background-size: 50px 50px;
}

.page-hero .container {
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245, 184, 0, .15);
  border: 1px solid rgba(245, 184, 0, .35);
  color: var(--yellow);
  font-size: 11px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 18px;
}

.page-hero h1 {
  color: var(--white);
  margin-bottom: 16px;
}

.page-hero p.lead {
  color: rgba(255, 255, 255, .75);
  font-size: 1.1rem;
  max-width: 540px;
  margin-bottom: 32px;
}

.hero-cert-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.hero-cert {
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .2);
  color: rgba(255, 255, 255, .9);
  font-size: 11px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 6px;
  letter-spacing: 1px;
}

/* ── Dynamic hero background helper ── */
.headline-hero-bg {
  position: relative;
  overflow: hidden;
  background-size: cover !important;
  background-position: center !important;
  background-repeat: no-repeat !important;
}

/* ── PRODUCT LISTING CARD ── */
.product-listing-card {
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all .3s;
  display: flex;
  flex-direction: column;
}

.product-listing-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-5px);
  border-color: var(--blue-light);
}

.plc-visual {
  height: 200px;
  background: linear-gradient(135deg, var(--sky), var(--blue-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 72px;
  position: relative;
  overflow: hidden;
}

.plc-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, .6) 0%, transparent 70%);
}

.plc-visual span {
  position: relative;
  z-index: 1;
}

.plc-top-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  background: var(--blue-dark);
  color: var(--white);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 4px 10px;
  border-radius: 6px;
  text-transform: uppercase;
}

.plc-body {
  padding: 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.plc-category {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--blue-bright);
  margin-bottom: 6px;
}

.plc-name {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--blue-dark);
  margin-bottom: 4px;
}

.plc-subtitle {
  font-size: 12px;
  color: var(--gray-text);
  margin-bottom: 12px;
  font-style: italic;
}

.plc-desc {
  font-size: 13px;
  color: var(--gray-text);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
}

.plc-specs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.plc-spec-pill {
  background: var(--gray-bg);
  border: 1px solid var(--gray-border);
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  color: var(--blue-dark);
  padding: 3px 10px;
}

.plc-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--gray-border);
}

.plc-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--blue-bright);
  font-weight: 700;
  font-size: 13px;
  transition: gap .2s;
}

.plc-link:hover {
  gap: 9px;
}

.plc-link svg {
  width: 14px;
  height: 14px;
}

/* ── PRODUCT DETAIL PAGE ── */
.product-detail-hero {
  background: var(--sky);
  border-bottom: 1px solid var(--gray-border);
  padding: 100px 0 60px;
}

.pdh-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.pdh-visual {
  background: linear-gradient(135deg, var(--white), var(--blue-light));
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-border);
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 110px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.pdh-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, .8) 0%, transparent 70%);
}

.pdh-visual span {
  position: relative;
  z-index: 1;
}

.pdh-info {}

.pdh-brand-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 8px;
}

.pdh-brand {
  font-family: var(--font-head);
  font-size: 3rem;
  font-weight: 900;
  color: var(--blue-dark);
  line-height: 1;
}

.pdh-technical {
  font-size: 14px;
  color: var(--gray-text);
  font-style: italic;
}

.pdh-desc {
  font-size: 1rem;
  color: var(--gray-text);
  line-height: 1.7;
  margin: 16px 0 24px;
}

.pdh-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ── TABS ── */
.tab-nav {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid var(--gray-border);
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 10px 22px;
  font-size: 13px;
  font-weight: 700;
  color: var(--gray-text);
  border: none;
  background: none;
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: all .2s;
  font-family: var(--font-body);
  border-radius: 8px 8px 0 0;
}

.tab-btn.active {
  color: var(--blue-bright);
  border-bottom-color: var(--blue-bright);
  background: var(--blue-pale);
}

.tab-btn:hover {
  color: var(--blue-dark);
  background: var(--gray-bg);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

/* ── FEATURES LIST ── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--blue-pale);
  border-radius: var(--radius);
  padding: 16px;
  border-left: 3px solid var(--blue-bright);
}

.feature-icon {
  width: 32px;
  height: 32px;
  background: var(--blue-light);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feature-icon svg {
  width: 16px;
  height: 16px;
  fill: var(--blue-dark);
}

.feature-text strong {
  display: block;
  font-size: 14px;
  color: var(--blue-dark);
  margin-bottom: 2px;
}

.feature-text span {
  font-size: 12px;
  color: var(--gray-text);
}

/* ── APPLICATIONS LIST ── */
.app-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.app-tag {
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--blue-dark);
  display: flex;
  align-items: center;
  gap: 8px;
}

.app-tag-icon {
  font-size: 18px;
}

/* ── DOWNLOAD SECTION ── */
.download-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--blue-pale);
  border: 1px solid var(--blue-light);
  border-radius: var(--radius);
  padding: 18px 24px;
}

.download-card .dl-info strong {
  display: block;
  font-size: 14px;
  color: var(--blue-dark);
}

.download-card .dl-info span {
  font-size: 12px;
  color: var(--gray-text);
}

/* ── CTA BANNER ── */
.cta-banner {
  background: linear-gradient(135deg, var(--blue-dark), var(--blue-bright));
  padding: 56px 0;
  text-align: center;
}

.cta-banner h2 {
  color: var(--white);
  margin-bottom: 10px;
}

.cta-banner p {
  color: rgba(255, 255, 255, .75);
  margin-bottom: 28px;
}

.cta-btns {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── FOOTER ── */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, .7);
  padding: 60px 0 28px;
}


.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 48px;
}


.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.footer-logo-box {
  width: 38px;
  height: 38px;
  background: var(--yellow);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 14px;
  color: var(--blue-dark);
}

.footer-logo-name {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  color: var(--white);
}

.footer-about {
  font-size: 13px;
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer-cert-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.footer-cert {
  background: rgba(245, 184, 0, .12);
  border: 1px solid rgba(245, 184, 0, .25);
  color: var(--yellow);
  font-size: 10px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 5px;
  letter-spacing: 1px;
}

.footer-col h4 {
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 9px;
}

.footer-col ul a {
  font-size: 13px;
  color: rgba(255, 255, 255, .6);
  transition: color .2s;
}

.footer-col ul a:hover {
  color: var(--yellow);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-bottom a {
  color: var(--yellow);
}

.social-row {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

.social-icon {
  width: 34px;
  height: 34px;
  background: rgba(255, 255, 255, .07);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .2s;
}

.social-icon:hover {
  background: var(--blue-bright);
}

.social-icon svg {
  width: 16px;
  height: 16px;
  fill: rgba(255, 255, 255, .7);
}

/* ── MARQUEE ── */
.marquee-wrap {
  background: var(--blue-dark);
  padding: 11px 0;
  overflow: hidden;
  white-space: nowrap;
}

.marquee-track {
  display: inline-flex;
  animation: marquee 35s linear infinite;
}

.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 28px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 13px;
  color: rgba(255, 255, 255, .75);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.marquee-sep {
  width: 4px;
  height: 4px;
  background: var(--yellow);
  border-radius: 50%;
  opacity: .6;
}

@keyframes marquee {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-50%);
  }
}

/* ── HIGHLIGHT STAT ── */
.stat-box {
  text-align: center;
  padding: 28px 20px;
}

.stat-num {
  font-family: var(--font-head);
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--blue-dark);
  line-height: 1;
}

.stat-label {
  font-size: 12px;
  color: var(--gray-text);
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ── STICKY SIDEBAR ── */
.product-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
}

.sticky-sidebar {
  position: sticky;
  top: 84px;
}

.sidebar-box {
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
}

.sidebar-box h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--blue-dark);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--gray-border);
}

.sidebar-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--blue-dark);
  transition: all .2s;
  border: 1px solid var(--gray-border);
}

.sidebar-link:hover {
  background: var(--blue-pale);
  border-color: var(--blue-light);
}

.sidebar-link svg {
  width: 14px;
  height: 14px;
  fill: var(--blue-bright);
  flex-shrink: 0;
}

/* ════════════════════════════════════════
   RESPONSIVE — TABLET (max 1024px)
════════════════════════════════════════ */
@media (max-width: 1024px) {
  .grid-4 {
    .footer-grid { grid-template-columns: 1fr 1fr 1fr; gap: 24px; }
    
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .product-layout {
    grid-template-columns: 1fr;
  }

  .sticky-sidebar {
    position: static;
  }

  .pdh-inner {
    grid-template-columns: 1fr;
  }

  /* Product detail hero grid — inline style override */
  [style*="grid-template-columns:1fr 1fr"],
  [style*="grid-template-columns: 1fr 1fr"] {
    grid-template-columns: 1fr !important;
  }

  .section {
    padding: 60px 0;
  }

  .btn-lg {
    padding: 14px 28px;
    font-size: 15px;
  }
}

/* ════════════════════════════════════════
   RESPONSIVE — MOBILE (max 768px)
════════════════════════════════════════ */
@media (max-width: 768px) {

  /* ── NAV ── */
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 66px;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--gray-border);
    padding: 12px 5%;
    box-shadow: var(--shadow-md);
    z-index: 999;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links a {
    padding: 10px 14px;
    font-size: 14px;
    border-radius: 8px;
  }

  /* ── GRIDS ── */
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  /* ── Product detail hero — inline grid override ── */
  [style*="grid-template-columns:1fr 1fr"],
  [style*="grid-template-columns: 1fr 1fr"] {
    grid-template-columns: 1fr !important;
    gap: 32px !important;
  }

  /* gap override for hero sections */
  [style*="gap:60px"] {
    gap: 32px !important;
  }

  /* ── HERO ── */
  .page-hero {
    padding: 90px 0 48px;
  }

  .page-hero h1 {
    font-size: 2.2rem;
  }

  .page-hero p.lead {
    font-size: 1rem;
  }

  /* ── SECTION ── */
  .section {
    padding: 48px 0;
  }

  .section-sm {
    padding: 32px 0;
  }

  /* ── BUTTONS ── */
  .btn-lg {
    padding: 13px 24px;
    font-size: 14px;
  }

  .btn {
    padding: 11px 22px;
  }

  .pdh-actions {
    flex-direction: column;
  }

  .pdh-actions .btn {
    width: 100%;
    justify-content: center;
  }

  /* ── CTA BANNER ── */
  .cta-banner {
    padding: 40px 0;
  }

  .cta-btns {
    flex-direction: column;
    align-items: center;
  }

  .cta-btns .btn {
    width: 100%;
    max-width: 320px;
    justify-content: center;
  }

  /* ── TABS ── */
  .tab-btn {
    padding: 8px 14px;
    font-size: 12px;
  }

  /* ── PRODUCT LISTING CARDS ── */
  .products-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* ── SPEC TABLE ── */
  .spec-table td {
    padding: 8px 10px;
    font-size: 13px;
  }

  .spec-table td:first-child {
    width: 40%;
  }

  /* ── FEATURES GRID ── */
  .features-grid {
    grid-template-columns: 1fr;
  }

  /* ── SIDEBAR ── */
  .sticky-sidebar {
    position: static;
  }

  .sidebar-box {
    padding: 18px;
  }

  /* ── DOWNLOAD CARD ── */
  .download-card {
    flex-direction: column;
    align-items: flex-start;
  }

  /* ── FOOTER ── */
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .site-footer {
    padding: 40px 0 20px;
  }

  /* ── STAT BOXES ── */
  .stat-num {
    font-size: 2.2rem;
  }

  /* ── FILTER BAR ── */
  .filter-inner {
    gap: 8px;
  }

  .filter-btn {
    padding: 7px 14px;
    font-size: 12px;
  }

  /* ── PRODUCT COUNT ── */
  .product-count {
    width: 100%;
    margin-left: 0;
  }
}

/* ════════════════════════════════════════
   RESPONSIVE — SMALL MOBILE (max 480px)
════════════════════════════════════════ */
@media (max-width: 480px) {
  html {
    font-size: 15px;
  }

  .container {
    padding: 0 4%;
  }

  /* ── NAV LOGO ── */
  .nav-logo-text span {
    display: none;
  }

  /* ── HERO ── */
  .page-hero {
    padding: 80px 0 40px;
  }

  .page-hero h1 {
    font-size: 1.9rem;
  }

  .hero-eyebrow {
    font-size: 10px;
    padding: 4px 10px;
  }

  /* ── PRODUCT HERO (inline style) ── */
  [style*="padding:96px 0 60px"] {
    padding: 80px 0 40px !important;
  }

  /* ── HEADINGS ── */
  .pdh-brand {
    font-size: 2.2rem;
  }

  .stat-num {
    font-size: 2rem;
  }

  h1 {
    font-size: 1.8rem;
  }

  /* ── BUTTONS ── */
  .btn-lg {
    padding: 12px 20px;
    font-size: 13px;
  }

  .btn {
    font-size: 13px;
    padding: 10px 18px;
  }

  /* ── TABS ── */
  .tab-nav {
    gap: 2px;
  }

  .tab-btn {
    padding: 7px 10px;
    font-size: 11px;
  }

  /* ── PRODUCT CARD ── */
  .plc-name {
    font-size: 1.3rem;
  }

  .plc-body {
    padding: 16px;
  }

  .plc-visual {
    height: 160px;
  }

  /* ── SPEC TABLE ── */
  .spec-table {
    font-size: 12px;
  }

  .spec-table td {
    padding: 8px;
  }

  .spec-table td:first-child {
    width: 38%;
  }

  /* ── FILTER BAR ── */
  .filter-btn {
    padding: 6px 10px;
    font-size: 11px;
  }

  /* ── SECTION PADDING ── */
  .section {
    padding: 36px 0;
  }

  .cta-banner {
    padding: 32px 0;
  }

  /* ── MODAL ── */
  .modal-box {
    padding: 20px !important;
  }

  .form-row {
    grid-template-columns: 1fr !important;
  }

  /* ── FOOTER ── */
  .footer-grid {
    gap: 24px;
  }

  .footer-col h4 {
    margin-bottom: 10px;
  }
}

/* ── UTILS ── */
.text-center {
  text-align: center;
}

.mt-8 {
  margin-top: 8px;
}

.mt-16 {
  margin-top: 16px;
}

.mt-24 {
  margin-top: 24px;
}

.mt-32 {
  margin-top: 32px;
}

.mt-48 {
  margin-top: 48px;
}

.mb-8 {
  margin-bottom: 8px;
}

.mb-16 {
  margin-bottom: 16px;
}

.mb-24 {
  margin-bottom: 24px;
}

.mb-32 {
  margin-bottom: 32px;
}

.mb-48 {
  margin-bottom: 48px;
}

.gap-8 {
  gap: 8px;
}

.gap-16 {
  gap: 16px;
}

.bg-sky {
  background: var(--sky);
}

.bg-gray {
  background: var(--gray-bg);
}

.divider {
  border: none;
  border-top: 1px solid var(--gray-border);
  margin: 40px 0;
}