/* =========================================================
   Netvalue LED Lighting — Powering Innovations
   Main Stylesheet
   ========================================================= */

:root {
  --brand-blue: #004B7C;
  --brand-blue-dark: #003B63;
  --brand-blue-medium: #005B96;
  --brand-cyan: #63C7D4;
  --brand-cyan-light: #DFF7FA;
  --white: #FFFFFF;
  --off-white: #F8FBFD;
  --light-grey: #EEF3F7;
  --border-grey: #D9E3EA;
  --text-dark: #1F2933;
  --text-muted: #5F6B76;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 8px rgba(0, 43, 74, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 43, 74, 0.10);
  --shadow-lg: 0 18px 46px rgba(0, 43, 74, 0.14);
  --header-height: 84px;
}

/* ---------- Reset ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--white);
  color: var(--text-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, p { margin: 0; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }
:focus-visible {
  outline: 3px solid var(--brand-cyan);
  outline-offset: 2px;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: bold;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand-blue-medium);
  background: var(--brand-cyan-light);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section {
  padding: 72px 0;
}
.section--grey { background: var(--off-white); }
.section--tight { padding: 48px 0; }

.section-head {
  max-width: 720px;
  margin: 0 auto 44px auto;
  text-align: center;
}
.section-head h2 {
  font-size: 34px;
  color: var(--brand-blue-dark);
  font-weight: bold;
  margin-bottom: 12px;
}
.section-head p {
  color: var(--text-muted);
  font-size: 16px;
}
.section-head.align-left {
  margin: 0 0 40px 0;
  text-align: left;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: bold;
  border: 2px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: var(--brand-blue);
  color: var(--white);
  box-shadow: var(--shadow-md);
}
.btn-primary:hover { background: var(--brand-blue-dark); }
.btn-outline {
  background: transparent;
  color: var(--brand-blue);
  border-color: var(--brand-blue);
}
.btn-outline:hover { background: var(--brand-blue); color: var(--white); }
.btn-cyan {
  background: var(--brand-cyan);
  color: var(--brand-blue-dark);
}
.btn-cyan:hover { background: #4fb7c5; }
.btn-block { width: 100%; }
.btn-sm { padding: 10px 20px; font-size: 14px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border-grey);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 24px;
}
.site-logo {
  height: 56px;
  width: auto;
  object-fit: contain;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.main-nav > ul {
  display: flex;
  align-items: center;
  gap: 2px;
}
.main-nav a.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 10px 14px;
  font-size: 14.5px;
  font-weight: bold;
  color: var(--text-dark);
  border-radius: 8px;
  transition: color 0.2s ease, background 0.2s ease;
}
.main-nav a.nav-link:hover,
.main-nav a.nav-link.active {
  color: var(--brand-blue);
  background: var(--brand-cyan-light);
}
.nav-item { position: relative; }
.nav-caret { font-size: 10px; margin-left: 2px; }
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 240px;
  background: var(--white);
  border: 1px solid var(--border-grey);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 10px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.18s ease;
}
.nav-item:hover .dropdown-menu,
.nav-item:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(4px);
}
.dropdown-menu a {
  display: block;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: normal;
  color: var(--text-dark);
}
.dropdown-menu a:hover { background: var(--off-white); color: var(--brand-blue); }
.header-cta { display: flex; align-items: center; gap: 12px; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 34px;
  height: 34px;
  border: none;
  background: none;
  padding: 6px;
}
.hamburger span {
  display: block;
  height: 2.5px;
  width: 100%;
  background: var(--brand-blue-dark);
  border-radius: 2px;
  transition: all 0.25s ease;
}
.hamburger.is-active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.hamburger.is-active span:nth-child(2) { opacity: 0; }
.hamburger.is-active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- Breadcrumb / Page intro ---------- */
.page-intro {
  background: var(--off-white);
  border-bottom: 1px solid var(--border-grey);
  padding: 18px 0;
}
.breadcrumb {
  font-size: 13.5px;
  color: var(--text-muted);
  display: flex;
  gap: 8px;
  align-items: center;
}
.breadcrumb a { color: var(--brand-blue-medium); font-weight: bold; }
.breadcrumb span { color: var(--border-grey); }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(180deg, var(--off-white) 0%, var(--white) 100%);
  padding: 64px 0 76px;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 56px;
}
.hero-copy h1 {
  font-size: 44px;
  line-height: 1.15;
  color: var(--brand-blue-dark);
  font-weight: bold;
  margin-bottom: 18px;
}
.hero-copy .hero-sub {
  font-size: 19px;
  color: var(--brand-blue-medium);
  font-weight: bold;
  margin-bottom: 16px;
}
.hero-copy p.hero-body {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 30px;
  max-width: 560px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-grey);
}
.hero-visual img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3.4; }
.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(0,75,124,0.12), rgba(99,199,212,0.06));
  pointer-events: none;
}
.hero-badge {
  position: absolute;
  bottom: 18px;
  left: 18px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 12px 18px;
  font-size: 13px;
  font-weight: bold;
  color: var(--brand-blue-dark);
  display: flex;
  align-items: center;
  gap: 10px;
}
.hero-badge .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--brand-cyan);
}
.hero-small {
  padding: 40px 0 56px;
}
.hero-small h1 { font-size: 36px; }

/* ---------- Highlights / Icon Cards ---------- */
.grid-6 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.icon-card {
  background: var(--white);
  border: 1px solid var(--border-grey);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.icon-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.icon-badge {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--brand-cyan-light);
  color: var(--brand-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.icon-badge svg { width: 26px; height: 26px; }
.icon-card h3 { font-size: 16.5px; color: var(--brand-blue-dark); margin-bottom: 8px; }
.icon-card p { font-size: 14.5px; color: var(--text-muted); }

/* ---------- Category / Product Cards ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }

.category-card {
  background: var(--white);
  border: 1px solid var(--border-grey);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.category-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.category-card .card-media {
  aspect-ratio: 4/3;
  background: var(--off-white);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.category-card .card-media img { width: 100%; height: 100%; object-fit: contain; }
.category-card .card-body { padding: 26px; display: flex; flex-direction: column; flex: 1; }
.category-card h3 { font-size: 19px; color: var(--brand-blue-dark); margin-bottom: 10px; }
.category-card p { font-size: 14.5px; color: var(--text-muted); flex: 1; margin-bottom: 20px; }

.placeholder-media {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, var(--brand-cyan-light), #ffffff);
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
}
.placeholder-media svg { width: 46px; height: 46px; color: var(--brand-blue-medium); opacity: 0.7; }

/* Product spec cards (indoor/outdoor detail pages) */
.product-card {
  background: var(--white);
  border: 1px solid var(--border-grey);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 0;
  margin-bottom: 28px;
}
.product-card .product-media {
  background: var(--off-white);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 26px;
  border-right: 1px solid var(--border-grey);
}
.product-card .product-media img { width: 100%; object-fit: contain; max-height: 220px; }
.product-card .product-info { padding: 30px 32px; display: flex; flex-direction: column; }
.product-card h3 { font-size: 21px; color: var(--brand-blue-dark); margin-bottom: 12px; }
.product-card p.desc { font-size: 15px; color: var(--text-muted); margin-bottom: 16px; }
.product-card .applications {
  font-size: 13.5px;
  color: var(--brand-blue-medium);
  background: var(--brand-cyan-light);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}
.product-card .applications b { color: var(--brand-blue-dark); }
.product-card .card-actions { margin-top: auto; }

/* ---------- Solutions cards ---------- */
.solution-card {
  background: var(--white);
  border: 1px solid var(--border-grey);
  border-left: 5px solid var(--brand-cyan);
  border-radius: var(--radius-md);
  padding: 26px 28px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.solution-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.solution-card h3 { font-size: 18px; color: var(--brand-blue-dark); margin-bottom: 10px; }
.solution-card p { font-size: 14.5px; color: var(--text-muted); margin-bottom: 14px; }
.solution-card .rec { font-size: 13.5px; color: var(--brand-blue); font-weight: bold; }
.solution-card .rec span { color: var(--text-muted); font-weight: normal; }

/* ---------- Case studies / Blog ---------- */
.case-card, .blog-card {
  background: var(--white);
  border: 1px solid var(--border-grey);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
  display: flex;
  flex-direction: column;
}
.case-card:hover, .blog-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.case-card .tag-strip, .blog-card .tag-strip {
  height: 130px;
  background: linear-gradient(135deg, var(--brand-blue), var(--brand-blue-medium));
  display: flex; align-items: center; justify-content: center;
}
.case-card .tag-strip svg, .blog-card .tag-strip svg { width: 44px; height: 44px; color: var(--brand-cyan-light); }
.case-card .card-body, .blog-card .card-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.case-card h3, .blog-card h3 { font-size: 17.5px; color: var(--brand-blue-dark); margin-bottom: 10px; }
.case-card .structure { font-size: 13px; color: var(--brand-blue-medium); margin-bottom: 14px; font-weight: bold; }
.blog-card .category-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: bold;
  color: var(--brand-blue-medium);
  background: var(--brand-cyan-light);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
  width: fit-content;
}
.blog-card p.excerpt { font-size: 14.5px; color: var(--text-muted); margin-bottom: 18px; flex: 1; }
.card-link {
  font-size: 14px;
  font-weight: bold;
  color: var(--brand-blue);
  margin-top: auto;
}
.card-link::after { content: " →"; }

/* ---------- Why choose / About ---------- */
.split-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.split-panel h2 { font-size: 30px; color: var(--brand-blue-dark); margin-bottom: 18px; }
.split-panel p { color: var(--text-muted); font-size: 15.5px; margin-bottom: 14px; }
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 10px;
}
.stat-box {
  background: var(--white);
  border: 1px solid var(--border-grey);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.stat-box .num { font-size: 26px; font-weight: bold; color: var(--brand-blue); }
.stat-box .label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

.brand-statement {
  text-align: center;
  background: var(--brand-blue-dark);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 56px 32px;
}
.brand-statement h2 { font-size: 28px; margin-bottom: 14px; color: var(--white); }
.brand-statement p { color: #cfe7f2; font-size: 16px; max-width: 620px; margin: 0 auto; }

/* ---------- CTA Section ---------- */
.cta-section {
  background: linear-gradient(120deg, var(--brand-blue) 0%, var(--brand-blue-medium) 100%);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  color: var(--white);
  flex-wrap: wrap;
}
.cta-section h2 { font-size: 28px; color: var(--white); margin-bottom: 10px; }
.cta-section p { color: #d9f0f5; font-size: 15.5px; max-width: 520px; }
.cta-section .btn-primary { background: var(--white); color: var(--brand-blue-dark); }
.cta-section .btn-primary:hover { background: var(--brand-cyan-light); }

/* ---------- Forms ---------- */
.form-card {
  background: var(--white);
  border: 1px solid var(--border-grey);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 36px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 18px; }
.form-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }
.form-group label { font-size: 13.5px; font-weight: bold; color: var(--brand-blue-dark); }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 13px 14px;
  border: 1.5px solid var(--border-grey);
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  color: var(--text-dark);
  background: var(--off-white);
  transition: border 0.2s ease, background 0.2s ease;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--brand-blue-medium);
  background: var(--white);
  outline: none;
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 13px; color: var(--text-muted); margin-top: 14px; text-align: center; }

.contact-info-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.contact-info-card {
  background: var(--white);
  border: 1px solid var(--border-grey);
  border-radius: var(--radius-md);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  text-align: center;
}
.contact-info-card .icon-badge { margin: 0 auto 14px auto; }
.contact-info-card h4 { font-size: 14px; color: var(--brand-blue-dark); margin-bottom: 6px; }
.contact-info-card p { font-size: 13.5px; color: var(--text-muted); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--brand-blue-dark);
  color: #cfe1ec;
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-logo { height: 46px; margin-bottom: 16px; filter: brightness(0) invert(1); }
.footer-brand p { font-size: 14px; color: #a9c4d6; margin-bottom: 18px; max-width: 300px; }
.footer-tagline { font-size: 13.5px; font-weight: bold; color: var(--brand-cyan); letter-spacing: 0.03em; }
.footer-col h4 {
  color: var(--white);
  font-size: 15px;
  margin-bottom: 18px;
  font-weight: bold;
}
.footer-col ul li { margin-bottom: 11px; }
.footer-col ul li a { font-size: 14px; color: #a9c4d6; transition: color 0.2s ease; }
.footer-col ul li a:hover { color: var(--brand-cyan); }
.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}
.footer-social a {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s ease;
}
.footer-social a:hover { background: var(--brand-cyan); }
.footer-social svg { width: 17px; height: 17px; color: var(--white); }
.footer-bottom {
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: #8fadc2;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom a { color: #a9c4d6; }

/* ---------- Misc / Utility ---------- */
.mt-0 { margin-top: 0; }
.text-center { text-align: center; }
.chip-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.chip {
  font-size: 13px;
  font-weight: bold;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--off-white);
  border: 1px solid var(--border-grey);
  color: var(--brand-blue-dark);
}
.divider { height: 1px; background: var(--border-grey); margin: 56px 0; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}
.feature-tile {
  background: var(--white);
  border: 1px solid var(--border-grey);
  border-radius: var(--radius-md);
  padding: 22px 18px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.feature-tile .icon-badge { margin: 0 auto 14px auto; }
.feature-tile p { font-size: 13.5px; color: var(--brand-blue-dark); font-weight: bold; }

.customise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.customise-card {
  background: var(--white);
  border: 1px solid var(--border-grey);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.customise-card h4 { font-size: 15.5px; color: var(--brand-blue-dark); margin-bottom: 8px; }
.customise-card p { font-size: 13.5px; color: var(--text-muted); }

.strengths-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .grid-6, .grid-3, .grid-2, .feature-grid, .customise-grid, .strengths-grid { grid-template-columns: repeat(2, 1fr); }
  .split-panel { grid-template-columns: 1fr; }
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
  .contact-info-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .product-card { grid-template-columns: 1fr; }
  .product-card .product-media { border-right: none; border-bottom: 1px solid var(--border-grey); }
}

@media (max-width: 860px) {
  .main-nav { display: none; }
  .hamburger { display: flex; }
  .main-nav.mobile-open {
    display: flex;
    position: absolute;
    top: var(--header-height);
    left: 0; right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border-grey);
    box-shadow: var(--shadow-md);
    flex-direction: column;
    padding: 12px;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
  }
  .main-nav.mobile-open > ul { flex-direction: column; align-items: stretch; width: 100%; gap: 2px; }
  .dropdown-menu {
    position: static;
    opacity: 1; visibility: visible; transform: none;
    display: none;
    box-shadow: none; border: none;
    padding-left: 14px;
  }
  .nav-item.is-open .dropdown-menu { display: block; }
  .site-logo { height: 44px; }
  .header-cta .btn { display: none; }
}

@media (max-width: 720px) {
  .hero-copy h1 { font-size: 32px; }
  .section { padding: 52px 0; }
  .section-head h2 { font-size: 26px; }
  .grid-6, .grid-3, .grid-2, .feature-grid, .customise-grid, .strengths-grid, .contact-info-grid { grid-template-columns: 1fr; }
  .cta-section { flex-direction: column; text-align: center; padding: 40px 26px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
}