:root {
  --primary: #2D6A4F;
  --primary-light: #40916C;
  --primary-dark: #1B4332;
  --secondary: #52B788;
  --accent: #F4A261;
  --accent-hover: #E76F51;
  --bg-canvas: #F8F9FA;
  --bg-surface: #FFFFFF;
  --text-main: #1D2D24;
  --text-muted: #5A6E62;
  --border-color: #E2E8F0;
  --shadow-sm: 0 2px 4px rgba(27, 67, 50, 0.05);
  --shadow-md: 0 10px 25px -5px rgba(27, 67, 50, 0.1), 0 8px 10px -6px rgba(27, 67, 50, 0.05);
  --shadow-lg: 0 20px 35px -10px rgba(27, 67, 50, 0.15);
  --radius: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-canvas);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4 {
  color: var(--primary-dark);
  font-weight: 800;
  line-height: 1.25;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(82, 183, 136, 0.15);
  border: 1px solid rgba(45, 106, 79, 0.2);
  border-radius: 999px;
  color: var(--primary-dark);
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 20px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 12px;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(45, 106, 79, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(45, 106, 79, 0.4);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(244, 162, 97, 0.35);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(244, 162, 97, 0.5);
}

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

.btn-outline:hover {
  background: var(--primary);
  color: #FFFFFF;
}

/* Header / Navbar */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

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

.logo-brand img {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-main);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--primary);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.75rem;
  color: var(--primary-dark);
  cursor: pointer;
}

/* Hero Section */
.hero-section {
  padding: 80px 0 100px;
  background: radial-gradient(circle at 80% 20%, rgba(82, 183, 136, 0.12) 0%, transparent 50%),
              radial-gradient(circle at 10% 80%, rgba(244, 162, 97, 0.1) 0%, transparent 50%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.25rem;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero-content p {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-image-wrapper {
  position: relative;
}

.hero-img-card {
  width: 100%;
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
  object-fit: cover;
  border: 6px solid #FFFFFF;
  transition: var(--transition);
}

.hero-img-card:hover {
  transform: scale(1.02);
}

.floating-badge {
  position: absolute;
  bottom: -25px;
  left: -25px;
  background: #FFFFFF;
  padding: 20px 24px;
  border-radius: 20px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 16px;
  border: 1px solid var(--border-color);
}

.floating-icon-svg {
  width: 48px;
  height: 48px;
  background: rgba(82, 183, 136, 0.2);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-dark);
}

/* Stats Bar */
.stats-section {
  background: var(--primary-dark);
  color: #FFFFFF;
  padding: 40px 0;
  margin-top: -30px;
  border-radius: 24px;
  box-shadow: var(--shadow-md);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item h3 {
  color: var(--secondary);
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.stat-item p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  font-weight: 500;
}

/* Features Section */
.section-padding {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 60px;
}

.section-header h2 {
  font-size: 2.35rem;
  margin-bottom: 16px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--bg-surface);
  padding: 36px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.feature-icon-svg {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(45, 106, 79, 0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.feature-card h3 {
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Products Showcase */
.products-section {
  background: #FFFFFF;
}

.filter-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 10px 24px;
  border-radius: 999px;
  background: var(--bg-canvas);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn.active, .tab-btn:hover {
  background: var(--primary-dark);
  color: #FFFFFF;
  border-color: var(--primary-dark);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.product-card {
  background: var(--bg-canvas);
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}

.product-img-box {
  width: 100%;
  height: 220px;
  position: relative;
  overflow: hidden;
  background: #E2E8F0;
}

.product-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.product-card:hover .product-img-box img {
  transform: scale(1.06);
}

.product-tag {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--accent);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 999px;
  text-transform: uppercase;
}

.product-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-title {
  font-size: 1.3rem;
  margin-bottom: 8px;
}

.product-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
}

.product-price {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--primary-dark);
}

.product-price span {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* Calculator Section */
.calculator-card {
  background: linear-gradient(135deg, var(--primary-dark) 0%, #112A1F 100%);
  color: #FFFFFF;
  border-radius: 28px;
  padding: 60px;
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.calc-info h2 {
  color: #FFFFFF;
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.calc-info p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 24px;
}

.calc-list {
  list-style: none;
  padding: 0;
}

.calc-list li {
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
}

.calc-list svg {
  width: 20px;
  height: 20px;
  color: var(--secondary);
  flex-shrink: 0;
}

.calc-box {
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(10px);
  padding: 32px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.9);
}

.form-control {
  width: 100%;
  padding: 14px 18px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(0, 0, 0, 0.2);
  color: #FFFFFF;
  font-size: 1rem;
  outline: none;
}

.form-control option {
  background: var(--primary-dark);
  color: #FFFFFF;
}

.calc-result {
  background: rgba(82, 183, 136, 0.2);
  border: 1px solid var(--secondary);
  padding: 20px;
  border-radius: 14px;
  margin-top: 24px;
  text-align: center;
}

.calc-result h4 {
  color: var(--secondary);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.calc-val {
  font-size: 1.85rem;
  font-weight: 800;
  color: #FFFFFF;
}

/* Testimonials */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.testimonial-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.rating-stars {
  display: flex;
  gap: 4px;
  color: #FFB703;
  margin-bottom: 16px;
}

.rating-stars svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.testimonial-text {
  font-style: italic;
  color: var(--text-muted);
  margin-bottom: 24px;
  font-size: 0.95rem;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 14px;
}

.user-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--secondary);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}

.user-name {
  font-weight: 700;
  color: var(--primary-dark);
}

.user-role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Footer */
footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 80px 0 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-logo {
  height: 52px;
  width: auto;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.95rem;
  line-height: 1.7;
}

.footer-col h4 {
  color: #FFFFFF;
  font-size: 1.1rem;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--secondary);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
}

.footer-contact-item svg {
  width: 20px;
  height: 20px;
  color: var(--secondary);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 30px;
  text-align: center;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
}

/* Responsive */
@media (max-width: 992px) {
  .hero-grid, .calculator-card {
    grid-template-columns: 1fr;
  }
  .features-grid, .products-grid, .testimonial-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .features-grid, .products-grid, .testimonial-grid {
    grid-template-columns: 1fr;
  }
  .hero-content h1 {
    font-size: 2.25rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .calculator-card {
    padding: 32px 20px;
  }
}