/* ============================================================
   EcoLite LED — Main Stylesheet
   ============================================================ */

/* CSS Custom Properties — ECO-46 AWWWARDS Design System */
:root {
  /* Brand tokens */
  --ink-black: #080C14;
  --space-blue: #0A1628;
  --electric: #1B6BFF;
  --photon: #00E676;

  /* System aliases */
  --primary: var(--ink-black);
  --secondary: var(--space-blue);
  --accent: var(--photon);
  --accent-blue: var(--electric);
  --accent-warm: var(--electric);
  --light: #EEF2F8;
  --white: #FFFFFF;
  --text-primary: #080C14;
  --text-secondary: #5A6E8C;
  --success: #00C853;

  /* Typography */
  --font-display: 'Clash Display', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  /* Shape */
  --radius-card: 12px;
  --radius-btn: 8px;

  /* Elevation */
  --shadow-card: 0 1px 3px rgba(8,12,20,0.06), 0 4px 24px rgba(8,12,20,0.08);
  --shadow-hover: 0 0 0 1px rgba(27,107,255,0.2), 0 8px 40px rgba(8,12,20,0.16);
}

/* ============================================================
   Reset & Base
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  background: var(--white);
}
body.nav-open { overflow: hidden; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ============================================================
   Utility
   ============================================================ */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.section-subtitle {
  font-family: var(--font-body);
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 48px;
}

.text-center { text-align: center; }
.text-white { color: var(--white); }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  gap: 8px;
}
.btn-primary {
  background: var(--electric);
  color: white;
}
.btn-primary:hover {
  background: #1558e0;
  transform: scale(1.03);
  box-shadow: 0 0 28px rgba(27, 107, 255, 0.55), 0 4px 20px rgba(27, 107, 255, 0.3);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: white;
}
.btn-outline-white {
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,0.5);
}
.btn-outline-white:hover {
  background: white;
  color: var(--primary);
}
.btn-full { width: 100%; }

/* ============================================================
   Navigation
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: white;
  transition: box-shadow 0.3s ease;
}
.site-header.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}
.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  height: 70px;
  gap: 32px;
}
.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  color: var(--primary);
  text-decoration: none;
  flex-shrink: 0;
}
.logo-text { color: var(--primary); }
.logo-accent { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1;
  justify-content: center;
}
.nav-links a {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
  position: relative;
  padding-bottom: 2px;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform 0.2s ease;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
}
.nav-links a:hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-left: auto;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* Mobile nav overlay */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(3,25,50,0.97);
  z-index: 2000;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
body.nav-open .nav-overlay {
  display: flex;
}
.nav-close {
  position: absolute;
  top: 24px;
  right: 24px;
  background: none;
  border: none;
  color: white;
  font-size: 32px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  transition: opacity 0.2s;
}
.nav-close:hover { opacity: 0.7; }

.nav-mobile-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  padding: 0;
  margin: 0;
}
.nav-mobile-links a {
  color: white;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 22px;
  text-decoration: none;
  transition: color 0.2s;
}
.nav-mobile-links a:hover { color: var(--accent); }
.nav-mobile-links a.active { color: var(--accent); }

@media (max-width: 767px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-container > .btn { display: none; }
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--primary);
  color: white;
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  color: white;
  margin-bottom: 16px;
}
.footer-logo .green { color: var(--accent); }
.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.6;
  margin-bottom: 8px;
}
.footer-brand .parent-link a {
  color: #90CAF9;
  text-decoration: underline;
}
.footer-brand .parent-link a:hover { color: white; }

.site-footer nav h3,
.site-footer nav h4,
.footer-contact h3,
.footer-contact h4 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: 20px;
}
.site-footer nav {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.site-footer nav a {
  font-size: 14px;
  color: rgba(255,255,255,0.8);
  transition: color 0.2s;
}
.site-footer nav a:hover { color: var(--accent); }

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-contact a {
  font-size: 14px;
  color: #90CAF9;
  transition: color 0.2s;
}
.footer-contact a:hover { color: white; }
.footer-contact p {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 24px 0;
  text-align: center;
}
.footer-bottom p {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}
.footer-bottom a {
  color: rgba(255,255,255,0.6);
  text-decoration: underline;
  transition: color 0.2s;
}
.footer-bottom a:hover { color: white; }

@media (max-width: 767px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}
@media (min-width: 768px) and (max-width: 1023px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-brand { grid-column: 1 / -1; }
}

/* ============================================================
   Page Wrapper (offset fixed header)
   ============================================================ */
.page-content { padding-top: 70px; }

/* ============================================================
   Sections — Shared
   ============================================================ */
.section { padding: 80px 0; }
.section-sm { padding: 48px 0; }
.section-lg { padding: 100px 0; }

/* ============================================================
   Hero — Full-bleed Cinematic (Phase 2)
   ============================================================ */
.hero-home {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 0 100px;
  background: var(--ink-black);
  overflow: hidden;
}
.hero-home::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 130% 80% at 15% 55%, rgba(27,107,255,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 90% 110% at 85% 20%, rgba(0,230,118,0.05) 0%, transparent 55%);
  z-index: 0;
}
.hero-home .container {
  position: relative;
  z-index: 1;
  display: block;
}
.hero-content {
  max-width: 800px;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(0,230,118,0.08);
  border: 1px solid rgba(0,230,118,0.22);
  border-radius: 3px;
  padding: 6px 14px;
  margin-bottom: 28px;
  opacity: 0.9;
}
.hero-headline {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(72px, 8.5vw, 120px);
  line-height: 0.95;
  color: white;
  margin-bottom: 24px;
  letter-spacing: -0.04em;
  text-shadow: 0 0 100px rgba(0, 230, 118, 0.18), 0 2px 8px rgba(0,0,0,0.5);
}
.hero-headline-kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.28em;
  font-weight: 400;
  color: rgba(0,230,118,0.8);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-bottom: 0.25em;
  text-shadow: none;
}
.hero-subheadline {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 22px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 20px;
  letter-spacing: 0.01em;
}
.hero-body {
  font-size: 17px;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 520px;
}
.hero-phone {
  margin-bottom: 20px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
}
.hero-phone a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}
.hero-phone a:hover {
  color: #69F0AE;
}
.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 1024px) {
  .hero-headline { font-size: clamp(56px, 7vw, 96px); }
}
@media (max-width: 767px) {
  .hero-headline { font-size: 52px; }
  .hero-subheadline { font-size: 18px; }
  .hero-body { font-size: 16px; }
}

/* ============================================================
   Trust Strip
   ============================================================ */
.trust-strip {
  background: var(--primary);
  padding: 28px 0;
  border-top: 2px solid var(--accent);
}
.trust-strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  text-align: center;
}
.trust-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 16px;
  border-right: 1px solid rgba(255,255,255,0.12);
}
.trust-item:last-child { border-right: none; }
.trust-icon {
  font-size: 22px;
  flex-shrink: 0;
  color: var(--accent);
  line-height: 1;
}
.trust-label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  color: #ffffff;
  letter-spacing: 0.02em;
  text-align: left;
}
@media (max-width: 767px) {
  .trust-strip-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-item:nth-child(2) { border-right: none; }
  .trust-label { font-size: 12px; }
}

/* ============================================================
   Value Props Strip
   ============================================================ */
.value-props {
  background: var(--light);
  padding: 64px 0;
}
.value-props-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.value-prop {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.value-prop-icon {
  width: 52px;
  height: 52px;
  background: rgba(0,200,83,0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 26px;
  flex-shrink: 0;
}
.value-prop h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--text-primary);
}
.value-prop p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.65;
}

@media (max-width: 767px) {
  .value-props-grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (min-width: 768px) and (max-width: 1023px) {
  .value-props-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   Product Categories — Home
   ============================================================ */
.product-categories { padding: 80px 0; }
.product-categories-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.category-card {
  background: white;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  border-top: 4px solid var(--accent);
  padding: 32px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.category-card-icon {
  font-size: 32px;
  color: var(--accent);
}
.category-card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  color: var(--text-primary);
}
.category-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.65;
  flex: 1;
}
.category-card .card-link {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s;
  margin-top: 8px;
}
.category-card .card-link:hover { gap: 10px; }

@media (max-width: 767px) {
  .product-categories-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   Stats Row
   ============================================================ */
.stats-row {
  background: var(--primary);
  padding: 64px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  position: relative;
}
.stat-item {
  text-align: center;
  padding: 24px 16px;
  position: relative;
}
.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 20%;
  height: 60%;
  width: 1px;
  background: rgba(255,255,255,0.15);
}
.stat-number {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 42px;
  color: white;
  line-height: 1;
  margin-bottom: 8px;
  display: block;
}
.stat-label {
  font-family: var(--font-body);
  font-size: 14px;
  color: #90CAF9;
  line-height: 1.4;
}

@media (max-width: 767px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-item:nth-child(2)::after { display: none; }
  .stat-number { font-size: 36px; }
}

/* ============================================================
   Featured Projects — Home
   ============================================================ */
.featured-projects { padding: 80px 0; background: var(--light); }
.featured-projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-bottom: 40px;
}
.project-card-featured {
  background: white;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.project-card-featured:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.project-img-placeholder {
  height: 200px;
  background-color: #D8E4F0;
  background-size: cover;
  background-position: center;
}
.project-card-body {
  padding: 24px;
}
.project-card-body h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.project-detail {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}
.result-badge {
  display: inline-block;
  background: #E8F5E9;
  color: var(--success);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 12px;
  padding: 5px 12px;
  border-radius: 100px;
  letter-spacing: 0.04em;
}
.featured-projects-cta {
  text-align: center;
}
.section-cta-link {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 4px;
  transition: gap 0.2s, color 0.2s;
}
.section-cta-link:hover { color: var(--accent); gap: 10px; }

@media (max-width: 767px) {
  .featured-projects-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   Testimonials
   ============================================================ */
.testimonials-section {
  padding: 80px 0;
  background: var(--light);
}
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.testimonial-card {
  background: white;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 32px;
  border-top: 4px solid var(--accent);
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.testimonial-quote {
  font-size: 16px;
  color: var(--text-primary);
  line-height: 1.7;
  font-style: italic;
  flex: 1;
}
.testimonial-quote::before {
  content: '"';
  font-size: 40px;
  color: var(--accent);
  line-height: 1;
  display: block;
  margin-bottom: 8px;
  font-style: normal;
  font-family: var(--font-display);
}
.testimonial-author {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.testimonial-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--primary);
}
.testimonial-company {
  font-size: 13px;
  color: var(--text-secondary);
}
@media (max-width: 767px) {
  .testimonials-grid { grid-template-columns: 1fr; }
}
@media (min-width: 768px) and (max-width: 1023px) {
  .testimonials-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   Quote CTA Section
   ============================================================ */
.quote-cta {
  background: var(--primary);
  padding: 80px 0;
  text-align: center;
}
.quote-cta h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 40px;
  color: white;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}
.quote-cta p {
  font-size: 18px;
  color: #90CAF9;
  max-width: 640px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

@media (max-width: 767px) {
  .quote-cta h2 { font-size: 28px; }
  .quote-cta p { font-size: 16px; }
}

/* ============================================================
   Products Page Hero
   ============================================================ */
.page-hero {
  background: var(--light);
  padding: 120px 24px 64px;
  text-align: center;
}
.page-hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 48px;
  color: var(--primary);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}
.page-hero-sub {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.7;
}

@media (max-width: 767px) {
  .page-hero-title { font-size: 32px; }
  .page-hero-sub { font-size: 16px; }
}

/* ============================================================
   Filter Bar — Products
   ============================================================ */
.filter-section {
  background: white;
  padding: 32px 0;
  border-bottom: 1px solid #E8EDF2;
  position: sticky;
  top: 70px;
  z-index: 100;
}
.filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}
.filter-btn {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.04em;
  padding: 8px 20px;
  border-radius: 100px;
  border: 2px solid #E2E8F0;
  background: white;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}
.filter-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

/* ============================================================
   Product Grid
   ============================================================ */
.products-section { padding: 64px 0 80px; }
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.product-card {
  background: white;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.product-card.hidden { display: none; }
.product-img-placeholder {
  height: 180px;
  background: linear-gradient(135deg, #E3EAF0 0%, #D0DCE8 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #90A4B8;
  font-size: 64px;
}
.product-info { padding: 24px; }
.product-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(0,200,83,0.1);
  border-radius: 4px;
  padding: 3px 8px;
  margin-bottom: 10px;
}
.product-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.product-specs {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.5;
}

@media (max-width: 767px) {
  .product-grid { grid-template-columns: 1fr; }
}
@media (min-width: 768px) and (max-width: 1023px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   Products Footer CTA
   ============================================================ */
.product-footer-cta {
  background: var(--primary);
  padding: 64px 0;
  text-align: center;
}
.product-footer-cta p {
  font-size: 20px;
  color: #90CAF9;
  max-width: 600px;
  margin: 0 auto 28px;
  line-height: 1.6;
}
.product-footer-cta h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 32px;
  color: white;
  margin-bottom: 16px;
}

/* ============================================================
   Projects Page
   ============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  padding: 64px 0 80px;
}
.project-card {
  background: white;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.project-card .project-img-placeholder {
  height: 220px;
  background: linear-gradient(135deg, #D8E4F0 0%, #C5D5E5 100%);
  font-size: 64px;
}
.project-card-content { padding: 28px; }
.project-card-content h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.project-meta {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.5;
}
.project-result {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #E8F5E9;
  color: var(--success);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
}
.project-result i { font-size: 14px; }

.projects-cta-banner {
  background: var(--light);
  padding: 56px 0;
  text-align: center;
  border-top: 1px solid #DDE5EE;
}
.projects-cta-banner h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 32px;
  color: var(--primary);
  margin-bottom: 12px;
}
.projects-cta-banner p {
  font-size: 17px;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

@media (max-width: 767px) {
  .projects-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   About Page
   ============================================================ */
.about-hero {
  padding: 120px 24px 64px;
  background: white;
  text-align: center;
}
.about-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 48px;
  color: var(--primary);
  max-width: 740px;
  margin: 0 auto 16px;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.about-hero .sub {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 22px;
  color: var(--secondary);
  margin-bottom: 0;
}

.brand-story {
  padding: 80px 0;
  background: white;
}
.brand-story-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 64px;
  align-items: start;
}
.brand-story-text h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 32px;
  color: var(--text-primary);
  margin-bottom: 24px;
}
.brand-story-text p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 20px;
}
.stat-callout-card {
  background: var(--primary);
  border-radius: var(--radius-card);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.stat-callout-item { border-bottom: 1px solid rgba(255,255,255,0.12); padding-bottom: 24px; }
.stat-callout-item:last-child { border-bottom: none; padding-bottom: 0; }
.stat-callout-number {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 36px;
  color: var(--accent);
  margin-bottom: 4px;
  display: block;
}
.stat-callout-label {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.4;
}

@media (max-width: 767px) {
  .brand-story-grid { grid-template-columns: 1fr; }
  .about-hero h1 { font-size: 32px; }
  .about-hero .sub { font-size: 18px; }
}

/* ============================================================
   Why EcoLite — 4 Pillars
   ============================================================ */
.why-section {
  background: var(--light);
  padding: 80px 0;
}
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.pillar-card {
  background: white;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  border-top: 4px solid var(--accent);
  padding: 32px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.pillar-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.pillar-icon {
  font-size: 32px;
  color: var(--accent);
  margin-bottom: 16px;
}
.pillar-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.pillar-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.65;
}

@media (max-width: 767px) {
  .pillars-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   Parent Company Section
   ============================================================ */
.parent-section {
  background: var(--primary);
  padding: 72px 0;
  text-align: center;
}
.parent-section h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 28px;
  color: white;
  max-width: 640px;
  margin: 0 auto 12px;
  line-height: 1.4;
}
.parent-section p {
  font-size: 16px;
  color: #90CAF9;
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.6;
}
.parent-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================
   Contact Page
   ============================================================ */
.contact-hero {
  background: var(--light);
  padding: 120px 24px 64px;
  text-align: center;
}
.contact-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 44px;
  color: var(--primary);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}
.contact-hero p {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

.contact-body {
  padding: 64px 0 80px;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: start;
}

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group label {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 14px;
  color: var(--text-primary);
}
.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px;
  border: 1px solid #CBD5E0;
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text-primary);
  transition: border-color 0.2s;
  outline: none;
  background: white;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,200,83,0.1);
}
.form-group textarea { resize: vertical; }
.form-group select { cursor: pointer; }

.form-success {
  text-align: center;
  padding: 48px 24px;
  background: #E8F5E9;
  border-radius: 8px;
}
.success-icon {
  font-size: 64px;
  color: var(--accent);
  margin-bottom: 16px;
  display: block;
}
.form-success h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.form-success p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Contact Info Panel */
.contact-info-panel {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.contact-info-section h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid #F0F4F8;
}
.contact-detail:last-child { border-bottom: none; }
.contact-detail-icon {
  width: 40px;
  height: 40px;
  background: rgba(0,200,83,0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 20px;
  flex-shrink: 0;
}
.contact-detail-text .label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 2px;
}
.contact-detail-text .value {
  font-size: 15px;
  color: var(--text-primary);
}
.contact-detail-text .value a {
  color: var(--secondary);
  text-decoration: underline;
}
.contact-detail-text .value a:hover { color: var(--primary); }

.trust-badges {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.trust-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  background: white;
  border: 1px solid #E8EDF2;
  border-radius: var(--radius-card);
  padding: 14px 16px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.trust-badge i {
  color: var(--accent);
  font-size: 20px;
  flex-shrink: 0;
}
.trust-badge span {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  color: var(--text-primary);
}

@media (max-width: 767px) {
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .contact-hero h1 { font-size: 30px; }
  .contact-hero p { font-size: 16px; }
}

/* ============================================================
   Section Headings
   ============================================================ */
.section-header {
  margin-bottom: 48px;
}
.section-header.centered {
  text-align: center;
}
.section-header h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 36px;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.section-header p {
  font-size: 17px;
  color: var(--text-secondary);
  margin-top: 12px;
  line-height: 1.65;
  max-width: 640px;
}
.section-header.centered p {
  margin-left: auto;
  margin-right: auto;
}

/* ============================================================
   Utility animations
   ============================================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   Scroll Reveal
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.75s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.75s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.revealed { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-left {
  opacity: 0;
  transform: translateX(-36px);
  transition: opacity 0.75s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.75s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-left.revealed { opacity: 1; transform: translateX(0); }
.reveal-right {
  opacity: 0;
  transform: translateX(36px);
  transition: opacity 0.75s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.75s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-right.revealed { opacity: 1; transform: translateX(0); }

/* ============================================================
   ROI Calculator
   ============================================================ */
.roi-calculator {
  padding: 100px 0;
  background: var(--primary);
  position: relative;
  overflow: hidden;
}
.roi-calculator::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0,200,83,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.roi-calculator::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(13,71,161,0.3) 0%, transparent 70%);
  pointer-events: none;
}
.roi-calculator .section-header { margin-bottom: 48px; }
.roi-calculator .section-header h2 { color: white; }
.roi-calculator .section-subtitle { color: rgba(255,255,255,0.65); }

.calc-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  overflow: hidden;
  backdrop-filter: blur(12px);
}
.calc-inputs-panel {
  padding: 52px;
  border-right: 1px solid rgba(255,255,255,0.1);
  display: flex;
  flex-direction: column;
  gap: 36px;
}
.calc-input-group label {
  display: block;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: 14px;
}
.slider-row {
  display: flex;
  align-items: center;
  gap: 20px;
}
.calc-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 2px;
  background: rgba(255,255,255,0.15);
  outline: none;
  cursor: pointer;
}
.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 0 0 4px rgba(0,200,83,0.2);
  transition: box-shadow 0.2s;
}
.calc-slider::-webkit-slider-thumb:hover,
.calc-slider:focus::-webkit-slider-thumb {
  box-shadow: 0 0 0 8px rgba(0,200,83,0.25);
}
.calc-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  box-shadow: 0 0 0 4px rgba(0,200,83,0.2);
}
.slider-value {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 14px;
  color: var(--accent);
  min-width: 76px;
  text-align: right;
}
.calc-results-panel {
  padding: 52px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.calc-result-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: border-color 0.3s;
}
.calc-result-card.highlight {
  background: rgba(0,230,118,0.08);
  border-color: rgba(0,230,118,0.25);
}
.result-icon { font-size: 22px; flex-shrink: 0; }
.result-value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 26px;
  color: white;
  line-height: 1;
  flex: 1;
  transition: color 0.3s;
}
.calc-result-card.highlight .result-value {
  color: var(--accent);
  font-size: 34px;
}
.result-label {
  font-size: 12px;
  color: rgba(255,255,255,0.45);
  text-align: right;
  min-width: 80px;
  line-height: 1.4;
}
.calc-cta {
  margin-top: 8px;
  text-align: center;
}
.calc-disclaimer {
  font-size: 11px;
  color: rgba(255,255,255,0.35);
  margin-top: 12px;
  line-height: 1.5;
}
@media (max-width: 1023px) {
  .calc-card { grid-template-columns: 1fr; }
  .calc-inputs-panel {
    border-right: none;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding: 36px 28px;
  }
  .calc-results-panel { padding: 36px 28px; }
  .calc-result-card.highlight .result-value { font-size: 28px; }
}

/* ============================================================
   Lighting Visualization
   ============================================================ */
.light-viz {
  padding: 100px 0;
  background: #06091a;
  position: relative;
}
.light-viz .section-header h2 { color: white; }
.light-viz .section-subtitle { color: rgba(255,255,255,0.55); }

.viz-canvas-wrap {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.08);
  background: #090c20;
}
#lightVizCanvas {
  display: block;
  width: 100%;
  height: auto;
}
.viz-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 32px;
}
.viz-toggle {
  display: flex;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 100px;
  overflow: hidden;
}
.viz-btn {
  padding: 11px 32px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  cursor: pointer;
  border: none;
  background: transparent;
  transition: all 0.3s ease;
}
.viz-btn.active {
  background: var(--accent);
  color: white;
  box-shadow: 0 0 24px rgba(0,200,83,0.35);
}
.viz-stats {
  display: flex;
  gap: 32px;
}
.viz-stat { text-align: center; }
.viz-stat-val {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 20px;
  color: white;
  display: block;
  transition: color 0.4s;
}
.viz-stat-val.positive { color: var(--accent); }
.viz-stat-label {
  font-size: 11px;
  color: rgba(255,255,255,0.4);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 4px;
}

/* ============================================================
   FAQ Section
   ============================================================ */
.faq-section {
  padding: 100px 0;
  background: var(--light);
}
.faq-section .section-header { margin-bottom: 56px; }

.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.faq-item {
  background: white;
  border-radius: var(--radius-card);
  border: 1px solid rgba(0,0,0,0.06);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.faq-question {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 26px 28px;
  cursor: pointer;
  gap: 16px;
  user-select: none;
  transition: background 0.2s;
}
.faq-question:hover { background: rgba(0,200,83,0.03); }
.faq-question h3 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  flex: 1;
}
.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 18px;
  transition: all 0.3s ease;
  margin-top: 2px;
}
.faq-item.open .faq-icon {
  background: var(--accent);
  color: white;
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.22, 1, 0.36, 1),
              padding 0.4s ease;
  padding: 0 28px;
}
.faq-item.open .faq-answer {
  max-height: 400px;
  padding: 0 28px 28px;
}
.faq-answer p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.75;
}
@media (max-width: 767px) {
  .faq-grid { grid-template-columns: 1fr; }
}

/* ---------------------------------------------------------
   Performance
   --------------------------------------------------------- */
.trust-strip,
.value-props,
.product-categories,
.stats-row,
.featured-projects,
.testimonials-section,
.quote-cta {
  content-visibility: auto;
  contain-intrinsic-size: 0 500px;
}

/* ---------------------------------------------------------
   Photon Canvas — hero background
   --------------------------------------------------------- */
.hero-home {
  position: relative;
  overflow: hidden;
}

#photon-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  display: block;
  opacity: 0.8;
}

.hero-home .container {
  position: relative;
  z-index: 1;
}

/* ---------------------------------------------------------
   Scroll Reveal
   --------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ---------------------------------------------------------
   Hero image entrance
   --------------------------------------------------------- */
.hero-img-wrap {
  animation: heroImgIn 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
  animation-delay: 0.2s;
}

@keyframes heroImgIn {
  from { opacity: 0; transform: translateX(32px) scale(0.97); }
  to   { opacity: 1; transform: translateX(0) scale(1); }
}

.hero-content {
  animation: heroTextIn 0.8s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes heroTextIn {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------------------------------------------------------
   CTA button shimmer
   --------------------------------------------------------- */
.btn-primary {
  position: relative;
  overflow: hidden;
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.18), transparent);
  transition: left 0.5s ease;
}

.btn-primary:hover::after {
  left: 140%;
}

/* ---------------------------------------------------------
   Product Spec Drawer
   --------------------------------------------------------- */
.spec-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(8, 12, 20, 0.72);
  backdrop-filter: blur(4px);
  z-index: 900;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.spec-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.spec-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(480px, 100vw);
  background: var(--secondary);
  border-left: 1px solid rgba(27, 107, 255, 0.18);
  z-index: 910;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.38s cubic-bezier(0.22, 1, 0.36, 1);
  overflow: hidden;
}
.spec-drawer.open {
  transform: translateX(0);
}

.spec-drawer-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 28px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}
.spec-drawer-cat {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}
.spec-drawer-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin: 0;
  line-height: 1.25;
}
.spec-drawer-close {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.05);
  color: rgba(255,255,255,0.7);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: background 0.2s, color 0.2s;
}
.spec-drawer-close:hover {
  background: rgba(255,255,255,0.12);
  color: #fff;
}

.spec-drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: 24px 28px;
  scrollbar-width: thin;
  scrollbar-color: rgba(27,107,255,0.3) transparent;
}

.sd-efficacy-wrap {
  background: rgba(0, 230, 118, 0.06);
  border: 1px solid rgba(0, 230, 118, 0.18);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 24px;
}
.sd-efficacy-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 10px;
}
.sd-efficacy-val {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}
.sd-efficacy-lab {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  font-family: var(--font-mono);
}
.sd-efficacy-track {
  position: relative;
  height: 6px;
  background: rgba(255,255,255,0.08);
  border-radius: 3px;
  overflow: hidden;
}
.sd-efficacy-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, #00E676, #1B6BFF);
  transition: width 0.6s cubic-bezier(0.22, 1, 0.36, 1);
  width: 0;
}
.sd-eff-max {
  position: absolute;
  right: 0;
  top: -18px;
  font-size: 10px;
  color: rgba(255,255,255,0.3);
  font-family: var(--font-mono);
}

.sd-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
  font-size: 13.5px;
}
.sd-table tr {
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.sd-table tr:last-child { border-bottom: none; }
.sd-table td {
  padding: 10px 0;
  vertical-align: top;
  line-height: 1.5;
}
.sd-table td:first-child {
  color: rgba(255,255,255,0.45);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  width: 40%;
  padding-right: 12px;
}
.sd-table td:last-child {
  color: rgba(255,255,255,0.9);
  font-weight: 500;
}

.sd-certs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.sd-cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  background: rgba(27, 107, 255, 0.12);
  border: 1px solid rgba(27, 107, 255, 0.25);
  border-radius: 6px;
  font-size: 12px;
  font-family: var(--font-mono);
  color: #90CAF9;
}
.sd-cert-badge i { font-size: 13px; color: var(--accent); }

.spec-drawer-foot {
  padding: 20px 28px 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(8, 12, 20, 0.4);
}
.sd-cta {
  width: 100%;
  text-align: center;
  padding: 13px;
  font-size: 15px;
  margin-bottom: 10px;
}
.sd-foot-note {
  font-size: 12px;
  color: rgba(255,255,255,0.35);
  text-align: center;
  margin: 0;
  font-family: var(--font-mono);
}

.product-card { cursor: pointer; }
.product-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------------------------------------------------------
   Energy Savings Visualization (projects page)
   --------------------------------------------------------- */
.energy-viz-section {
  background: var(--primary);
  padding: 80px 0;
  border-top: 1px solid rgba(255,255,255,0.05);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.eviz-header { margin-bottom: 52px; }
.eviz-header h2 { color: #fff; }
.eviz-sub {
  font-size: 15px; color: rgba(255,255,255,0.45);
  max-width: 520px; margin: 12px auto 0;
  line-height: 1.65;
}

.eviz-grid { display: flex; flex-direction: column; gap: 36px; }

.eviz-row {
  display: grid;
  grid-template-columns: 220px 1fr 100px;
  gap: 24px;
  align-items: center;
  padding: 28px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  transition: border-color 0.3s;
}
.eviz-row:hover { border-color: rgba(0,230,118,0.2); }

.eviz-meta-col { display: flex; flex-direction: column; gap: 4px; }
.eviz-project-name {
  font-family: var(--font-display); font-size: 16px;
  font-weight: 700; color: #fff; line-height: 1.25;
}
.eviz-detail { font-family: var(--font-mono); font-size: 11px; color: rgba(255,255,255,0.35); }

.eviz-bars-col { display: flex; flex-direction: column; gap: 10px; }
.eviz-bar-wrap { display: flex; flex-direction: column; gap: 4px; }
.eviz-bar-label { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase; color: rgba(255,255,255,0.35); }

.eviz-track {
  position: relative; height: 8px;
  background: rgba(255,255,255,0.06);
  border-radius: 4px; overflow: visible;
}
.eviz-fill {
  height: 100%; border-radius: 4px; width: 0;
  transition: width 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}
.eviz-fill-before { background: rgba(255, 107, 53, 0.55); }
.eviz-fill-after  { background: linear-gradient(90deg, #00E676, #1B6BFF); }

.eviz-pct {
  position: absolute; right: 0; top: -20px;
  font-family: var(--font-mono); font-size: 10px;
  color: rgba(255,255,255,0.3);
}
.eviz-pct-after { color: var(--accent); }

.eviz-badge-col { display: flex; justify-content: center; }
.eviz-badge {
  display: flex; flex-direction: column; align-items: center;
  gap: 2px; padding: 12px 16px;
  background: rgba(0,230,118,0.08);
  border: 1px solid rgba(0,230,118,0.2);
  border-radius: 10px;
}
.eviz-badge-num {
  font-family: var(--font-display); font-size: 28px;
  font-weight: 700; color: var(--accent); line-height: 1;
}
.eviz-badge-lab {
  font-family: var(--font-mono); font-size: 10px;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: rgba(255,255,255,0.4);
}

@media (max-width: 768px) {
  .eviz-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .eviz-badge-col { justify-content: flex-start; }
}

/* =============================================================
   ECO-48: Card hover shimmer — CSS @property animated gradient
   ============================================================= */
@property --shimmer-x {
  syntax: '<percentage>';
  inherits: false;
  initial-value: -60%;
}

.product-card,
.category-card,
.project-card-featured {
  position: relative;
  overflow: hidden;
}

.product-card::after,
.category-card::after,
.project-card-featured::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    108deg,
    transparent calc(var(--shimmer-x) - 20%),
    rgba(0, 230, 118, 0.07) var(--shimmer-x),
    rgba(255, 255, 255, 0.06) calc(var(--shimmer-x) + 5%),
    transparent calc(var(--shimmer-x) + 22%)
  );
  pointer-events: none;
  z-index: 1;
  --shimmer-x: -60%;
}

.product-card:hover::after,
.category-card:hover::after,
.project-card-featured:hover::after {
  animation: led-shimmer-sweep 0.65s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes led-shimmer-sweep {
  to { --shimmer-x: 160%; }
}

@media (prefers-reduced-motion: reduce) {
  .product-card::after,
  .category-card::after,
  .project-card-featured::after { display: none; }
}

/* ── Live Energy ROI Visualizer (ECO-49) ────────────────── */
.energy-roi-viz {
  padding: 80px 0;
  background: var(--space-blue);
}
.energy-roi-viz .section-label { color: var(--accent); }
.energy-roi-viz .section-header h2 { color: var(--white); }
.energy-roi-viz .section-subtitle { color: rgba(255,255,255,0.55); }

.roi-viz-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-card);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.roi-viz-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.roi-viz-field {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.roi-viz-field label {
  color: rgba(255,255,255,0.55);
  font-size: 13px;
  letter-spacing: 0.05em;
  font-family: var(--font-display);
  font-weight: 600;
}
.roi-viz-input-wrap {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 6px;
  overflow: hidden;
  transition: border-color 0.2s;
}
.roi-viz-input-wrap:focus-within {
  border-color: rgba(0,230,118,0.4);
  background: rgba(0,230,118,0.04);
}
.roi-viz-input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--white);
  font-size: 22px;
  font-family: var(--font-display);
  font-weight: 700;
  padding: 12px 16px;
  outline: none;
  width: 0;
  min-width: 0;
}
.roi-viz-unit {
  color: rgba(255,255,255,0.3);
  font-size: 12px;
  padding: 0 16px 0 4px;
  white-space: nowrap;
}
.roi-viz-canvas-wrap {
  width: 100%;
  background: rgba(0,0,0,0.25);
  border-radius: 8px;
  overflow: hidden;
  min-height: 300px;
}
#roiVizCanvas { display: block; width: 100%; }
.roi-viz-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.roi-metric-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 8px;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: center;
}
.roi-metric-card.highlight {
  border-color: rgba(0,230,118,0.22);
  background: rgba(0,230,118,0.05);
}
.roi-metric-val {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.1;
}
.roi-metric-card.highlight .roi-metric-val { color: var(--accent); }
.roi-metric-label {
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.04em;
}
@media (max-width: 768px) {
  .roi-viz-inputs  { grid-template-columns: 1fr; }
  .roi-viz-metrics { grid-template-columns: 1fr 1fr; }
  .roi-viz-card    { padding: 24px; }
}