/* ============================================================
   Shield Pipe Website — Main Stylesheet
   Arab Company for Development & Plastic Industry
   ============================================================ */

/* ─── CSS VARIABLES ─── */
:root {
  --green-dark:   #1a6b3c;
  --green-mid:    #2d9156;
  --green-light:  #4caf7d;
  --green-pale:   #e8f5ee;
  --green-accent: #38b26b;
  --white:        #ffffff;
  --gray-50:      #f9fafb;
  --gray-100:     #f3f4f6;
  --gray-200:     #e5e7eb;
  --gray-400:     #9ca3af;
  --gray-600:     #4b5563;
  --gray-700:     #374151;
  --gray-800:     #1f2937;
}

/* ─── RESET & BASE ─── */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  color: var(--gray-800);
  background: var(--white);
}

/* ============================================================
   NAVBAR
   ============================================================ */
nav {
  position: sticky; top: 0; z-index: 1000;
  background: var(--white);
  border-bottom: 2px solid var(--green-pale);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.nav-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 32px; height: 72px;
}
.nav-logo img { height: 52px; object-fit: contain; }
.nav-links { display: flex; gap: 8px; align-items: center; }
.nav-links a {
  text-decoration: none;
  color: var(--gray-700);
  font-family: 'Montserrat', sans-serif;
  font-weight: 600; font-size: 13px; letter-spacing: 0.5px;
  padding: 8px 16px; border-radius: 6px;
  transition: all 0.2s;
  text-transform: uppercase;
}
.nav-links a:hover { background: var(--green-pale); color: var(--green-dark); }
.nav-cta {
  background: var(--green-mid) !important;
  color: var(--white) !important;
  border-radius: 8px !important;
}
.nav-cta:hover { background: var(--green-dark) !important; }

/* Hamburger (mobile) */
.nav-hamburger {
  display: none;
  flex-direction: column; gap: 5px; cursor: pointer; padding: 6px;
}
.nav-hamburger span {
  width: 24px; height: 2px; background: var(--gray-700);
  border-radius: 2px; transition: all 0.3s;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, #0d3d24 0%, #1a6b3c 50%, #2d9156 100%);
  min-height: 92vh;
  display: flex; align-items: center;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-inner {
  max-width: 1280px; margin: 0 auto; padding: 80px 32px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center;
  position: relative; z-index: 1;
}
.hero-text h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(36px, 5vw, 62px);
  font-weight: 900; color: var(--white);
  line-height: 1.1; margin-bottom: 20px;
}
.hero-text h1 span { color: #a8f0c6; }
.hero-text p {
  font-size: 17px; color: rgba(255,255,255,0.82);
  line-height: 1.7; margin-bottom: 36px; font-weight: 300;
}
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 40px; }
.badge {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  color: #e8f5ee; font-size: 12px; font-weight: 600;
  padding: 6px 14px; border-radius: 20px; letter-spacing: 0.5px;
  backdrop-filter: blur(8px);
  font-family: 'Montserrat', sans-serif;
  text-transform: uppercase;
}
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  background: var(--white); color: var(--green-dark);
  padding: 14px 28px; border-radius: 10px;
  font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 14px;
  text-decoration: none; letter-spacing: 0.5px;
  transition: all 0.25s; display: inline-block;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,0,0,0.3); }
.btn-outline {
  border: 2px solid rgba(255,255,255,0.5); color: var(--white);
  padding: 14px 28px; border-radius: 10px;
  font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 14px;
  text-decoration: none; letter-spacing: 0.5px;
  transition: all 0.25s; display: inline-block;
  backdrop-filter: blur(8px);
}
.btn-outline:hover { background: rgba(255,255,255,0.12); }
.hero-image {
  border-radius: 20px; overflow: hidden;
  box-shadow: 0 32px 80px rgba(0,0,0,0.4);
  position: relative;
}
.hero-image img { width: 100%; display: block; }
.hero-image::after {
  content: '';
  position: absolute; inset: 0;
  border: 2px solid rgba(255,255,255,0.1);
  border-radius: 20px;
}

/* ============================================================
   STATS STRIP
   ============================================================ */
.stats-strip {
  background: var(--gray-800);
  padding: 28px 32px;
}
.stats-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; justify-content: space-around; flex-wrap: wrap; gap: 24px;
}
.stat-item { text-align: center; }
.stat-num {
  font-family: 'Montserrat', sans-serif;
  font-size: 32px; font-weight: 900; color: var(--green-light);
}
.stat-label {
  font-size: 12px; color: var(--gray-400); text-transform: uppercase;
  letter-spacing: 1px; font-weight: 500; margin-top: 4px;
}

/* ============================================================
   SHARED SECTION STYLES
   ============================================================ */
.section { padding: 96px 32px; }
.section-inner { max-width: 1280px; margin: 0 auto; }
.section-title {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(28px, 4vw, 44px); font-weight: 800;
  color: var(--gray-800); margin-bottom: 12px;
}
.section-subtitle {
  font-size: 16px; color: var(--gray-600); line-height: 1.6;
  margin-bottom: 56px; max-width: 680px;
}
.green-accent-line {
  width: 56px; height: 4px;
  background: var(--green-mid);
  border-radius: 2px; margin-bottom: 20px;
}

/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about-section { background: var(--white); }
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start;
}
.about-images {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.about-images img {
  width: 100%; border-radius: 12px; object-fit: cover;
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}
.about-images img:first-child { grid-column: 1/-1; height: 260px; }
.about-images img:not(:first-child) { height: 180px; }
.vmg-cards { display: flex; flex-direction: column; gap: 20px; margin-top: 32px; }
.vmg-card {
  background: var(--green-pale);
  border-left: 4px solid var(--green-mid);
  padding: 20px 24px; border-radius: 0 12px 12px 0;
}
.vmg-card h4 {
  font-family: 'Montserrat', sans-serif;
  font-size: 14px; font-weight: 800; color: var(--green-dark);
  text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px;
}
.vmg-card p { font-size: 14px; color: var(--gray-600); line-height: 1.6; }

/* ============================================================
   PRODUCTS SECTION
   ============================================================ */
.products-section { background: var(--gray-50); }

/* Tabs */
.product-tabs { display: flex; gap: 4px; margin-bottom: 48px; flex-wrap: wrap; }
.tab-btn {
  font-family: 'Montserrat', sans-serif;
  font-size: 14px; font-weight: 700; letter-spacing: 0.5px;
  padding: 12px 28px; border-radius: 10px;
  border: 2px solid var(--gray-200);
  background: var(--white); color: var(--gray-600);
  cursor: pointer; transition: all 0.2s;
  text-transform: uppercase;
}
.tab-btn:hover { border-color: var(--green-mid); color: var(--green-mid); }
.tab-btn.active {
  background: var(--green-mid); color: var(--white);
  border-color: var(--green-mid);
  box-shadow: 0 4px 16px rgba(45,145,86,0.3);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Category Header */
.product-category-header {
  background: linear-gradient(135deg, var(--green-dark), var(--green-mid));
  padding: 32px 36px; border-radius: 16px; margin-bottom: 36px;
  display: flex; align-items: center; gap: 24px;
}
.category-icon {
  width: 56px; height: 56px; border-radius: 50%;
  background: rgba(255,255,255,0.2);
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; flex-shrink: 0;
}
.product-category-header h2 {
  font-family: 'Montserrat', sans-serif;
  font-size: 26px; font-weight: 800; color: var(--white); margin-bottom: 4px;
}
.product-category-header p { font-size: 14px; color: rgba(255,255,255,0.8); }

/* Product Cards Grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
.product-card {
  background: var(--white); border-radius: 14px;
  overflow: hidden; border: 1px solid var(--gray-200);
  transition: all 0.3s; display: flex; flex-direction: column;
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(0,0,0,0.1);
  border-color: var(--green-light);
}
.product-card-img {
  height: 190px; overflow: hidden;
  background: var(--gray-100);
  display: flex; align-items: center; justify-content: center;
}
.product-card-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.4s;
}
.product-card:hover .product-card-img img { transform: scale(1.06); }
.product-card-body { padding: 18px 20px; flex: 1; }
.product-card-body h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 15px; font-weight: 700; color: var(--gray-800); margin-bottom: 6px;
}
.product-card-body p { font-size: 13px; color: var(--gray-600); line-height: 1.5; }
.product-card-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--gray-100);
  background: var(--gray-50);
}
.product-size {
  font-size: 12px; color: var(--green-dark); font-weight: 600;
  font-family: 'Montserrat', sans-serif;
}

/* UPVC specs grid */
.specs-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px;
}
.spec-box {
  background: white; padding: 16px; border-radius: 10px; border: 1px solid var(--gray-200);
}
.spec-box .spec-label {
  font-size: 12px; color: var(--gray-400); text-transform: uppercase;
  letter-spacing: 0.5px; margin-bottom: 4px;
}
.spec-box .spec-value {
  font-size: 20px; font-weight: 800; color: var(--green-dark);
  font-family: 'Montserrat', sans-serif;
}

/* PPR pipe grades */
.ppr-grade {
  background: var(--green-pale);
  border-left: 4px solid var(--green-mid);
  padding: 20px; border-radius: 0 12px 12px 0;
}
.ppr-grade.uv { border-left-color: var(--green-light); }
.ppr-grade h4 {
  font-family: 'Montserrat', sans-serif; font-weight: 800;
  color: var(--green-dark); font-size: 15px; margin-bottom: 4px;
}
.ppr-grade p { font-size: 13px; color: var(--gray-600); }

/* ============================================================
   WHY CHOOSE US
   ============================================================ */
.why-section { background: var(--white); }
.features-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px;
}
.feature-card {
  padding: 32px; border-radius: 16px;
  background: var(--green-pale);
  border: 1px solid #c8e6d6;
  transition: all 0.25s;
}
.feature-card:hover {
  background: var(--green-mid); transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(45,145,86,0.2);
}
.feature-card:hover h3,
.feature-card:hover p { color: var(--white); }
.feature-icon { font-size: 36px; margin-bottom: 16px; }
.feature-card h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 16px; font-weight: 700; color: var(--green-dark);
  margin-bottom: 10px; transition: color 0.25s;
}
.feature-card p { font-size: 13px; color: var(--gray-600); line-height: 1.6; transition: color 0.25s; }

/* ============================================================
   GALLERY
   ============================================================ */
.gallery-section { background: var(--gray-50); }
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: auto auto;
  gap: 16px;
}
.gallery-item {
  border-radius: 12px; overflow: hidden;
  position: relative; cursor: zoom-in;
}
.gallery-item img {
  width: 100%; height: 220px; object-fit: cover;
  transition: transform 0.4s;
  display: block;
}
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item.large { grid-column: span 2; grid-row: span 2; }
.gallery-item.large img { height: 100%; min-height: 456px; }

/* ============================================================
   STANDARDS
   ============================================================ */
.standards-section { background: var(--gray-800); padding: 80px 32px; }
.standards-inner { max-width: 1280px; margin: 0 auto; text-align: center; }
.standards-inner .section-title { color: var(--white); }
.standards-inner .section-subtitle { color: var(--gray-400); margin: 0 auto 48px; }
.standards-grid {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 16px;
}
.std-badge {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  color: #a8f0c6;
  padding: 12px 22px; border-radius: 8px;
  font-family: 'Montserrat', sans-serif;
  font-size: 13px; font-weight: 700; letter-spacing: 0.5px;
}

/* ============================================================
   INSTALLATION
   ============================================================ */
.install-section { background: var(--white); }
.install-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.install-steps { display: flex; flex-direction: column; gap: 0; }
.install-step {
  display: flex; gap: 20px; padding: 24px 0;
  border-bottom: 1px solid var(--gray-200);
  align-items: flex-start;
}
.install-step:last-child { border-bottom: none; }
.step-num {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--green-mid); color: var(--white);
  font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 16px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.step-content h4 {
  font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 15px;
  color: var(--gray-800); margin-bottom: 6px;
}
.step-content p { font-size: 13px; color: var(--gray-600); line-height: 1.6; }
.install-note {
  background: var(--green-pale); border-radius: 12px;
  padding: 20px; margin-top: 20px;
}
.install-note h4 {
  font-family: 'Montserrat', sans-serif; font-weight: 800;
  color: var(--green-dark); margin-bottom: 8px;
}
.install-note p { font-size: 13px; color: var(--gray-700); line-height: 1.6; }
.install-image img {
  width: 100%; border-radius: 16px;
  box-shadow: 0 16px 48px rgba(0,0,0,0.12);
}

/* ============================================================
   CATALOG SECTION
   ============================================================ */
.catalog-section {
  background: linear-gradient(135deg, var(--green-pale), #d0ead9);
  padding: 96px 32px;
}
.catalog-inner { max-width: 1280px; margin: 0 auto; }
.catalog-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.catalog-card {
  background: var(--white); border-radius: 20px; overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  display: flex; flex-direction: column;
}
.catalog-preview { height: 300px; overflow: hidden; position: relative; }
.catalog-preview img { width: 100%; height: 100%; object-fit: cover; }
.catalog-preview-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
  display: flex; align-items: flex-end; padding: 24px;
}
.catalog-preview-overlay span {
  color: var(--white); font-family: 'Montserrat', sans-serif;
  font-size: 18px; font-weight: 800;
}
.catalog-card-body { padding: 28px; flex: 1; }
.catalog-card-body p {
  font-size: 14px; color: var(--gray-600); line-height: 1.7; margin-bottom: 24px;
}
.btn-download {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--green-mid); color: var(--white);
  padding: 13px 24px; border-radius: 10px;
  font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 13px;
  text-decoration: none; transition: all 0.2s; letter-spacing: 0.5px;
}
.btn-download:hover {
  background: var(--green-dark); transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(45,145,86,0.3);
}
.btn-download svg { width: 18px; height: 18px; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-section { background: var(--gray-800); padding: 96px 32px; }
.contact-inner { max-width: 1280px; margin: 0 auto; }
.contact-inner .section-title { color: var(--white); }
.contact-inner .section-subtitle { color: var(--gray-400); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.contact-info h3 {
  font-family: 'Montserrat', sans-serif; font-size: 18px; font-weight: 700;
  color: var(--green-light); margin-bottom: 20px;
}
.contact-item {
  display: flex; gap: 14px; align-items: flex-start; margin-bottom: 20px;
}
.contact-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: rgba(76,175,125,0.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; flex-shrink: 0;
}
.contact-item-text p {
  font-size: 13px; color: var(--gray-400); margin-bottom: 2px;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.contact-item-text a,
.contact-item-text span {
  font-size: 15px; color: var(--white); font-weight: 500; text-decoration: none;
}
.contact-item-text a:hover { color: var(--green-light); }
.map-container {
  background: rgba(255,255,255,0.05);
  border-radius: 16px; overflow: hidden;
  border: 1px solid rgba(255,255,255,0.1);
}
.map-container iframe {
  width: 100%; height: 320px; border: none; display: block;
}
.hours-box {
  background: rgba(255,255,255,0.05);
  border-radius: 12px; padding: 24px; margin-top: 20px;
  border: 1px solid rgba(255,255,255,0.08);
}
.hours-box h4 {
  font-family: 'Montserrat', sans-serif; font-weight: 700;
  color: #a8f0c6; margin-bottom: 12px;
}
.hours-box p { font-size: 14px; color: var(--gray-400); line-height: 1.8; }

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: #0a2318; padding: 40px 32px;
  border-top: 1px solid rgba(255,255,255,0.05);
}
.footer-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 24px;
}
.footer-inner p { font-size: 13px; color: var(--gray-400); }
.footer-logo img { height: 44px; opacity: 0.8; }
.footer-links { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; }
.footer-links a { color: var(--green-light); font-size: 13px; text-decoration: none; }
.footer-links a:hover { color: var(--white); }

/* ============================================================
   SCROLL ANIMATIONS
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-images { max-width: 600px; }
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-image { display: none; }
  .install-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .catalog-cards { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr 1fr; }
  .gallery-item.large { grid-column: span 2; grid-row: span 1; }
  .gallery-item.large img { min-height: 220px; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 72px; left: 0; right: 0;
    background: var(--white); padding: 16px 24px;
    border-bottom: 2px solid var(--green-pale);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    gap: 4px;
  }
  .nav-hamburger { display: flex; }
  .hero-inner { padding: 60px 20px; }
  .section { padding: 64px 20px; }
  .stats-strip { padding: 24px 20px; }
  .products-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .gallery-grid { grid-template-columns: 1fr; }
  .gallery-item.large { grid-column: span 1; }
  .products-grid { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
  .product-tabs { flex-direction: column; }
  .tab-btn { width: 100%; text-align: center; }
}

/* ============================================================
   ADDITIONS — New renders, pipe showcase, hero tag
   ============================================================ */

.hero-tag {
  display: inline-block;
  font-family: 'Montserrat', sans-serif;
  font-size: 11px; font-weight: 700; letter-spacing: 2px;
  text-transform: uppercase;
  color: #a8f0c6;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 6px 16px; border-radius: 20px;
  margin-bottom: 20px;
}

/* Pipe showcase row inside product tab */
.pipe-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 40px;
}
.pipe-showcase-info h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 17px; font-weight: 800;
  color: var(--gray-800); margin-bottom: 16px;
}
.spec-grid-small {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
}
.spec-mini {
  background: var(--green-pale);
  padding: 12px 14px; border-radius: 8px;
  font-size: 13px; color: var(--gray-600); line-height: 1.5;
}
.spec-mini span {
  display: block;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700; font-size: 11px;
  color: var(--green-dark); text-transform: uppercase;
  letter-spacing: 0.5px; margin-bottom: 3px;
}

@media (max-width: 700px) {
  .pipe-showcase { grid-template-columns: 1fr; }
  .spec-grid-small { grid-template-columns: 1fr; }
}