/* ==========================================================================
   Help Plastic - Modern Industrial & Engineering Design System
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  /* Colors */
  --primary: #1d4ed8;
  --primary-hover: #1e40af;
  --primary-light: #eff6ff;
  --primary-glow: rgba(37, 99, 235, 0.35);
  
  --secondary: #0ea5e9;
  --secondary-glow: rgba(14, 165, 233, 0.35);
  
  --accent: #10b981;
  --accent-amber: #f59e0b;
  
  --dark: #0f172a;
  --dark-surface: #1e293b;
  --dark-border: #334155;
  
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --text-white: #ffffff;
  
  --border-light: #e2e8f0;
  --border-subtle: rgba(226, 232, 240, 0.8);
  
  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Radii & Shadows */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px -2px rgba(0,0,0,0.08), 0 2px 6px -1px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 28px -4px rgba(0,0,0,0.12), 0 4px 12px -2px rgba(0,0,0,0.06);
  --shadow-glow: 0 0 25px var(--primary-glow);
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body);
  color: var(--text-main);
  background-color: var(--bg-light);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--dark);
  font-weight: 700;
  line-height: 1.25;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

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

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.top-bar {
  background: var(--dark);
  color: var(--text-light);
  font-size: 0.875rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--dark-border);
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.top-info {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.top-info-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.top-info-item a:hover {
  color: var(--secondary);
}

.header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-badge {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.4rem;
  box-shadow: 0 4px 10px rgba(29, 78, 216, 0.3);
}

.brand-text h1, .brand-text span.brand-name {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--dark);
  line-height: 1;
}

.brand-text span.brand-name span {
  color: var(--primary);
}

.brand-text p {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-weight: 600;
  color: var(--text-main);
  font-size: 0.95rem;
  position: relative;
  padding: 0.4rem 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
  border-radius: var(--radius-full);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--dark);
  cursor: pointer;
}

/* ==========================================================================
   Buttons & Badges
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #2563eb);
  color: white;
  box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-hover), var(--primary));
  box-shadow: 0 6px 20px var(--primary-glow);
  transform: translateY(-2px);
  color: white;
}

.btn-outline {
  background: transparent;
  color: var(--dark);
  border: 2px solid var(--border-light);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
  transform: translateY(-2px);
}

.btn-accent {
  background: linear-gradient(135deg, #10b981, #059669);
  color: white;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.45);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-primary {
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid rgba(29, 78, 216, 0.2);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  position: relative;
  background: linear-gradient(145deg, #0b132b 0%, #1c2541 60%, #1e3a8a 100%);
  color: white;
  padding: 5.5rem 0 6.5rem;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 80% 20%, rgba(14, 165, 233, 0.25) 0%, transparent 50%),
              radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.2) 0%, transparent 40%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 3.5rem;
  position: relative;
  z-index: 2;
}

.hero-content h1 {
  font-size: 3.2rem;
  color: white;
  margin: 1.25rem 0 1rem;
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.15;
}

.hero-content h1 span {
  background: linear-gradient(135deg, #60a5fa, #38bdf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: 1.15rem;
  color: #cbd5e1;
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.stat-item h3 {
  font-size: 2rem;
  color: #38bdf8;
  font-weight: 800;
}

.stat-item p {
  color: #94a3b8;
  font-size: 0.85rem;
  font-weight: 500;
}

.hero-visual {
  position: relative;
}

.hero-card-stack {
  position: relative;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.hero-image-wrap {
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
}

.hero-image-wrap img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.hero-card-stack:hover img {
  transform: scale(1.03);
}

.floating-pill {
  position: absolute;
  bottom: -15px;
  left: 20px;
  background: #ffffff;
  color: var(--dark);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 0.9rem;
}

.floating-pill i {
  color: var(--accent);
  font-size: 1.3rem;
}

/* ==========================================================================
   Section Headers
   ========================================================================== */
.section {
  padding: 5.5rem 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3.5rem;
}

.section-header h2 {
  font-size: 2.35rem;
  margin: 0.75rem 0 1rem;
  letter-spacing: -0.5px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* ==========================================================================
   Product Cards & Grid
   ========================================================================== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
}

.product-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--secondary);
}

.product-img-box {
  position: relative;
  height: 220px;
  background: #f1f5f9;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.product-card:hover .product-img-box img {
  transform: scale(1.08);
}

.product-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(15, 23, 42, 0.85);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(4px);
}

.product-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-body h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.product-body p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.product-features {
  list-style: none;
  margin-bottom: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.product-features li {
  font-size: 0.825rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.product-features li i {
  color: var(--primary);
  font-size: 0.9rem;
}

.product-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
}

/* ==========================================================================
   Category Filter Tabs
   ========================================================================== */
.filter-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2.5rem;
}

.filter-btn {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-main);
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 4px 12px var(--primary-glow);
}

/* ==========================================================================
   Features / Value Props
   ========================================================================== */
.features-section {
  background: var(--bg-white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.feature-box {
  padding: 2.25rem 1.75rem;
  border-radius: var(--radius-md);
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.feature-box:hover {
  transform: translateY(-4px);
  background: #ffffff;
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 1.25rem;
  transition: var(--transition);
}

.feature-box:hover .feature-icon {
  background: var(--primary);
  color: white;
}

.feature-box h3 {
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
}

.feature-box p {
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* ==========================================================================
   Industrial Catalog Strip
   ========================================================================== */
.catalog-strip {
  background: linear-gradient(135deg, var(--dark) 0%, #1e293b 100%);
  color: white;
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  position: relative;
  overflow: hidden;
}

.catalog-strip-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 2.5rem;
}

.catalog-strip h2 {
  color: white;
  font-size: 2.2rem;
  margin-bottom: 1rem;
}

.catalog-strip p {
  color: #94a3b8;
  font-size: 1.05rem;
  margin-bottom: 1.75rem;
}

.catalog-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.catalog-tag {
  background: rgba(255, 255, 255, 0.1);
  color: #e2e8f0;
  font-size: 0.825rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ==========================================================================
   Detailed Product Specs Table
   ========================================================================== */
.specs-table-wrap {
  background: white;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  overflow-x: auto;
  box-shadow: var(--shadow-sm);
  margin: 2rem 0;
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

.specs-table th {
  background: #f1f5f9;
  color: var(--dark);
  padding: 1rem 1.25rem;
  font-weight: 700;
  border-bottom: 2px solid var(--border-light);
}

.specs-table td {
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-main);
}

.specs-table tr:last-child td {
  border-bottom: none;
}

.specs-table tr:hover td {
  background: #f8fafc;
}

/* ==========================================================================
   Contact & Quote Modal
   ========================================================================== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 3rem;
  align-items: start;
}

.contact-card {
  background: var(--bg-white);
  padding: 2.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin: 2rem 0;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-text h4 {
  font-size: 1rem;
  margin-bottom: 0.2rem;
}

.contact-text p, .contact-text a {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.contact-form {
  background: var(--bg-white);
  padding: 2.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 0.4rem;
  color: var(--dark);
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: #f8fafc;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: 1.5rem;
}

.modal-overlay.active {
  display: flex;
}

.modal-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  width: 100%;
  max-width: 520px;
  padding: 2.25rem;
  position: relative;
  box-shadow: var(--shadow-lg);
  animation: modalPop 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalPop {
  from { opacity: 0; transform: scale(0.92) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: #f1f5f9;
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.2rem;
  color: var(--text-muted);
  transition: var(--transition);
}

.modal-close:hover {
  background: #e2e8f0;
  color: var(--dark);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background: var(--dark);
  color: var(--text-light);
  padding: 4.5rem 0 2rem;
  border-top: 1px solid var(--dark-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand h3 {
  color: white;
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.footer-brand p {
  color: var(--text-light);
  font-size: 0.92rem;
  line-height: 1.7;
}

.footer-col h4 {
  color: white;
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--primary);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: var(--text-light);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: white;
  padding-left: 4px;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--dark-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
}

/* Floating Action Button */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  background: #25d366;
  color: white;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: var(--transition);
}

.whatsapp-float:hover {
  transform: scale(1.1) rotate(6deg);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.5);
  color: white;
}

/* Responsive */
@media (max-width: 992px) {
  .hero-grid, .catalog-strip-grid, .contact-layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .mobile-toggle {
    display: block;
  }
  .nav-menu {
    position: fixed;
    top: 73px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 73px);
    background: #ffffff;
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem;
    gap: 1.5rem;
    box-shadow: var(--shadow-lg);
    transition: left 0.3s ease;
  }
  .nav-menu.open {
    left: 0;
  }
  .hero-content h1 {
    font-size: 2.5rem;
  }
}

@media (max-width: 640px) {
  .top-bar {
    display: none;
  }
  .hero-content h1 {
    font-size: 2.1rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}