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

:root {
  --bg-body: #FAFAFC;
  --bg-surface: #FFFFFF;
  --bg-surface-elevated: #FFFFFF;
  --bg-subtle: #F1F5F9;
  --bg-accent-light: #FFF8F0;
  --bg-accent-subtle: #FEF3C7;
  
  --primary: #D97706;       /* Warm Packaging Kraft Amber */
  --primary-hover: #B45309;
  --primary-light: #FBBF24;
  --primary-dark: #78350F;
  --accent-green: #059669;   /* Eco Recyclable Green */
  --accent-green-bg: #ECFDF5;
  --accent-blue: #0284C7;
  --accent-blue-bg: #F0F9FF;

  --text-main: #0F172A;
  --text-muted: #475569;
  --text-subtle: #64748B;
  --text-inverse: #FFFFFF;

  --border-color: #E2E8F0;
  --border-hover: #CBD5E1;
  --border-focus: #F59E0B;

  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.05), 0 1px 3px rgba(15, 23, 42, 0.03);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.08), 0 4px 8px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 40px -10px rgba(217, 119, 6, 0.15);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--primary-hover);
}

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

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-main);
  line-height: 1.25;
  font-weight: 700;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.4rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.2rem; }

.text-gradient {
  background: linear-gradient(135deg, var(--text-main) 30%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

/* Layout Containers */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.main-content {
  flex: 1 0 auto;
}

.section {
  padding: 4.5rem 0;
}
.section-sm {
  padding: 2.5rem 0;
}
.section-bg-subtle {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}
.section-bg-warm {
  background: linear-gradient(180deg, var(--bg-accent-light) 0%, var(--bg-body) 100%);
}

/* Header & Sticky Navigation */
.header-sticky {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
  transition: all var(--transition-normal);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
  text-decoration: none;
}
.brand-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary) 0%, #B45309 100%);
  color: white;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  box-shadow: 0 4px 12px rgba(217, 119, 6, 0.25);
}
.brand-text span {
  color: var(--primary);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
}

.nav-link {
  padding: 0.6rem 1.2rem;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-muted);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--primary);
  background-color: var(--bg-accent-light);
}

.nav-link.active {
  color: var(--primary-hover);
  background-color: var(--bg-accent-subtle);
}

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

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-main);
  cursor: pointer;
  padding: 0.5rem;
}

/* Mobile Nav Drawer */
.mobile-nav-drawer {
  display: none;
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding: 1.5rem;
  box-shadow: var(--shadow-lg);
  z-index: 999;
}
.mobile-nav-drawer.open {
  display: block;
  animation: slideDown 0.3s ease forwards;
}
.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.mobile-nav-link {
  display: block;
  padding: 0.8rem 1rem;
  font-weight: 600;
  color: var(--text-main);
  border-radius: var(--radius-sm);
}
.mobile-nav-link.active, .mobile-nav-link:hover {
  background-color: var(--bg-accent-light);
  color: var(--primary);
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Buttons System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.6rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
  color: white;
  box-shadow: 0 4px 14px rgba(217, 119, 6, 0.3);
}
.btn-primary:hover {
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(217, 119, 6, 0.4);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-main);
  border-color: var(--border-color);
  box-shadow: var(--shadow-sm);
}
.btn-secondary:hover {
  background-color: var(--bg-subtle);
  border-color: var(--border-hover);
  color: var(--text-main);
  transform: translateY(-2px);
}

.btn-accent {
  background-color: var(--accent-green);
  color: white;
  box-shadow: 0 4px 14px rgba(5, 150, 105, 0.25);
}
.btn-accent:hover {
  color: white;
  background-color: #047857;
  transform: translateY(-2px);
}

.btn-lg {
  padding: 0.95rem 2rem;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.btn-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

/* Badges & Chips */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.badge-primary {
  background-color: var(--bg-accent-subtle);
  color: var(--primary-dark);
  border: 1px solid rgba(245, 158, 11, 0.3);
}
.badge-eco {
  background-color: var(--accent-green-bg);
  color: var(--accent-green);
  border: 1px solid rgba(5, 150, 105, 0.2);
}
.badge-blue {
  background-color: var(--accent-blue-bg);
  color: var(--accent-blue);
  border: 1px solid rgba(2, 132, 199, 0.2);
}

/* Hero Section */
.hero-section {
  padding: 5rem 0 4rem;
  background: radial-gradient(circle at 80% 20%, rgba(254, 243, 199, 0.5) 0%, rgba(250, 250, 252, 0) 60%),
              radial-gradient(circle at 10% 90%, rgba(241, 245, 249, 0.8) 0%, rgba(250, 250, 252, 0) 50%);
  position: relative;
}

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

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hero-lead {
  font-size: 1.2rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

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

.stat-item h3 {
  font-size: 2rem;
  color: var(--primary);
  font-weight: 800;
}
.stat-item p {
  font-size: 0.88rem;
  color: var(--text-subtle);
  font-weight: 500;
}

/* Hero Graphic / Card Stack */
.hero-visual {
  position: relative;
}
.hero-card-main {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.hero-card-main::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--primary) 0%, #F59E0B 100%);
}

.feature-pill-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}
.feature-pill-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  background-color: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
}
.feature-pill-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--bg-accent-subtle);
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

/* Cards & Grid Systems */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-hover);
}

.card-icon {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: var(--bg-accent-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 1.25rem;
  border: 1px solid var(--bg-accent-subtle);
}

.card-title {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
}

.card-body {
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.6;
}

/* Methodology Grid Cards */
.methodology-card {
  position: relative;
  overflow: hidden;
}
.methodology-num {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  color: rgba(226, 232, 240, 0.6);
  line-height: 1;
  user-select: none;
}

/* Product Showcase Grid */
.product-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.product-image-container {
  height: 220px;
  background-color: #F8FAFC;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border-color);
}
.product-image-container img {
  max-height: 100%;
  object-fit: contain;
  transition: transform var(--transition-normal);
}
.product-card:hover .product-image-container img {
  transform: scale(1.06);
}

.product-badge-overlay {
  position: absolute;
  top: 1rem;
  left: 1rem;
}

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

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

.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.8rem 0 1.2rem;
}

.product-gallery-thumbs {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
  overflow-x: auto;
  padding-bottom: 0.3rem;
}
.thumb-img {
  width: 50px;
  height: 50px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 2px solid var(--border-color);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.thumb-img:hover, .thumb-img.active {
  border-color: var(--primary);
  transform: scale(1.05);
}

/* Category Filter Tabs */
.filter-tabs {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.filter-tab {
  padding: 0.6rem 1.4rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.filter-tab:hover {
  border-color: var(--primary-light);
  color: var(--primary);
}
.filter-tab.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(217, 119, 6, 0.3);
}

/* Contact Page Layout */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
}

.contact-info-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-info-item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}
.contact-info-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background-color: var(--bg-accent-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
  border: 1px solid var(--bg-accent-subtle);
}

.contact-form-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}

/* Form Control Styling */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  padding: 0.85rem 1.1rem;
  font-family: var(--font-body);
  font-size: 0.98rem;
  color: var(--text-main);
  background-color: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  outline: none;
}
.form-control:focus {
  background-color: var(--bg-surface);
  border-color: var(--border-focus);
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.15);
}

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

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.alert-box {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.95rem;
}
.alert-success {
  background-color: #ECFDF5;
  color: #065F46;
  border: 1px solid #A7F3D0;
}
.alert-error {
  background-color: #FEF2F2;
  color: #991B1B;
  border: 1px solid #FCA5A5;
}

/* Map Wrapper */
.map-container {
  width: 100%;
  height: 400px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}
.map-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* Footer Section */
.footer {
  background-color: var(--text-main);
  color: #94A3B8;
  padding: 4rem 0 2rem;
  margin-top: auto;
  border-top: 1fr solid #1E293B;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-brand-name {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: white;
}

.footer-title {
  font-size: 1.1rem;
  color: white;
  margin-bottom: 1.25rem;
}

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

.footer-link {
  color: #94A3B8;
  transition: color var(--transition-fast);
}
.footer-link:hover {
  color: var(--primary-light);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid #1E293B;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.9rem;
}

/* Modal / Lightbox */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(4px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.modal-overlay.open {
  display: flex;
  animation: fadeIn 0.2s ease forwards;
}

.modal-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  max-width: 700px;
  width: 100%;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  position: relative;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(241, 245, 249, 0.8);
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}
.modal-close:hover {
  background: var(--primary);
  color: white;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu, .nav-actions {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  .hero-stats-row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}