/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-color: #0b8457;
  --primary-dark: #0a6a45;
  --secondary-color: #2c3e50;
  --text-color: #333;
  --text-light: #6b7280;
  --background-light: #f8f9fa;
  --border-color: #e5e7eb;
  --white: #ffffff;
  --shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 10px 30px rgba(0, 0, 0, 0.12);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  font-size: 16px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Floating WhatsApp Button */
.floating-whatsapp {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 60px;
  height: 60px;
  background: #25D366;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  z-index: 1000;
  transition: all 0.3s ease;
  font-size: 1.8rem;
}

.floating-whatsapp:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 25px rgba(37, 211, 102, 0.6);
}

/* Header Styles */
.site-header {
  background: var(--white);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 999;
}

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

.brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--secondary-color);
  font-weight: 700;
  font-size: 1.3rem;
}

.brand img {
  margin-right: 0.75rem;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
}

.hamburger {
  display: block;
  height: 3px;
  width: 100%;
  background: var(--secondary-color);
  border-radius: 3px;
  transition: all 0.3s ease;
}

.nav-toggle[aria-expanded="true"] .hamburger:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.nav-toggle[aria-expanded="true"] .hamburger:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .hamburger:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

.nav ul {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

.nav a {
  text-decoration: none;
  color: var(--secondary-color);
  font-weight: 600;
  font-size: 1.05rem;
  transition: color 0.3s ease;
  position: relative;
}

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

.nav a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: width 0.3s ease;
}

.nav a:hover::after {
  width: 100%;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--white);
  padding: 5rem 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 2.8rem;
  margin-bottom: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
}

.hero-content p {
  font-size: 1.3rem;
  margin-bottom: 2.5rem;
  opacity: 0.95;
  line-height: 1.6;
}

.btn {
  display: inline-block;
  background: var(--white);
  color: var(--primary-color);
  padding: 1rem 2.5rem;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.hero-media img {
  width: 100%;
  height: auto;
  border-radius: 16px;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

/* Section Styles */
.section {
  padding: 5rem 0;
}

.section h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  color: var(--secondary-color);
  text-align: center;
  font-weight: 700;
}

.section > p {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 4rem;
  color: var(--text-light);
  font-size: 1.2rem;
  line-height: 1.7;
}

/* Three Columns Layout */
.three-columns {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 3rem;
  margin-top: 3rem;
}

.col {
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--white);
  border-radius: 16px;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
}

.col:hover {
  transform: translateY(-5px);
}

.col h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--secondary-color);
  font-weight: 600;
}

.col p {
  color: var(--text-light);
  line-height: 1.6;
}

/* Four Products Grid - NEW STYLES */
.four-products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.product-card-small {
  background: var(--white);
  padding: 2.5rem 1.5rem;
  border-radius: 16px;
  box-shadow: var(--shadow);
  text-align: center;
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
}

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

.product-icon-small {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.product-card-small h3 {
  color: var(--secondary-color);
  margin-bottom: 1rem;
  font-size: 1.3rem;
  font-weight: 600;
  line-height: 1.3;
}

.product-card-small p {
  color: var(--text-light);
  line-height: 1.6;
  font-size: 0.95rem;
}

/* Products Grid */
.strengths-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
  margin-top: 3rem;
}

.card {
  background: var(--white);
  padding: 2.5rem 2rem;
  border-radius: 16px;
  box-shadow: var(--shadow);
  text-align: center;
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
}

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

.card h3 {
  color: var(--secondary-color);
  margin-bottom: 1.2rem;
  font-size: 1.4rem;
  font-weight: 600;
}

.card p {
  color: var(--text-light);
  line-height: 1.6;
}

/* Products Grid - NEW STRUCTURE */
.products-grid {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  margin-top: 3rem;
}

.products-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.product-item {
  background: var(--white);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
}

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

.product-card {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.product-header {
  padding: 2rem 2rem 1rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.product-icon {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  width: 60px;
  height: 60px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.product-title h3 {
  color: var(--primary-color);
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.product-title h2 {
  color: var(--secondary-color);
  font-size: 1.6rem;
  margin: 0;
  font-weight: 700;
  line-height: 1.3;
}

.project-media {
  padding: 0 2rem;
}

.project-media img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 12px;
}

.product-content {
  padding: 1.5rem 2rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.product-description {
  color: var(--text-light);
  margin-bottom: 2rem;
  line-height: 1.6;
  font-size: 1.05rem;
}

.specs-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.specs-accordion {
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.specs-accordion.active {
  border-color: var(--primary-color);
}

.accordion-header {
  background: var(--background-light);
  padding: 1.2rem 1.5rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.3s ease;
}

.accordion-header:hover {
  background: #e9ecef;
}

.specs-title {
  font-size: 1.1rem;
  color: var(--secondary-color);
  margin: 0;
  font-weight: 600;
}

.accordion-icon {
  color: var(--primary-color);
  transition: transform 0.3s ease;
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  background: var(--white);
}

.accordion-content ul {
  list-style: none;
  padding: 1.5rem;
  margin: 0;
}

.accordion-content li {
  margin-bottom: 0.8rem;
  color: var(--text-light);
  line-height: 1.5;
  padding-left: 1rem;
  position: relative;
}

.accordion-content li::before {
  content: '•';
  color: var(--primary-color);
  font-weight: bold;
  position: absolute;
  left: 0;
}

.accordion-content li strong {
  color: var(--secondary-color);
}

.close-accordion-btn {
  display: block;
  margin: 0 1.5rem 1.5rem;
  padding: 0.7rem 1.5rem;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  width: calc(100% - 3rem);
}

.close-accordion-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.contact-text {
  color: var(--primary-color);
  font-weight: 600;
  margin-top: auto;
  text-align: center;
  font-size: 1.05rem;
  padding: 1rem 0;
}

.product-footer {
  padding: 1.5rem 2rem;
  background: var(--background-light);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.meta {
  color: var(--text-light);
  font-size: 0.95rem;
  margin: 0;
  font-weight: 500;
}

.inquiry-btn {
  background: var(--primary-color);
  color: white;
  padding: 0.8rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.inquiry-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(11, 132, 87, 0.3);
}

/* Contact Section */
.contact-section {
  background: linear-gradient(135deg, var(--background-light) 0%, #e9ecef 100%);
  border-radius: 24px;
  padding: 4rem 2rem;
  margin: 3rem auto;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.contact-header {
  text-align: center;
  margin-bottom: 4rem;
}

.contact-header h2 {
  color: var(--secondary-color);
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  font-weight: 700;
}

.contact-header p {
  color: var(--text-light);
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.7;
}

.contact-form {
  max-width: 850px;
  margin: 0 auto;
  background: var(--white);
  padding: 3rem;
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 2rem;
}

.contact-form label {
  display: block;
  margin-bottom: 0.8rem;
  font-weight: 600;
  color: var(--secondary-color);
  font-size: 1.05rem;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 1rem 1.2rem;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  font-size: 1.05rem;
  transition: all 0.3s ease;
  background: #fafafa;
  font-family: inherit;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(11, 132, 87, 0.1);
}

.contact-form textarea {
  resize: vertical;
  min-height: 140px;
}

.form-submit {
  text-align: center;
  margin-top: 2.5rem;
}

.submit-btn {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--white);
  padding: 1.2rem 3rem;
  border: none;
  border-radius: 14px;
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(11, 132, 87, 0.3);
}

.submit-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(11, 132, 87, 0.4);
}

.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
  margin-top: 4rem;
  padding-top: 4rem;
  border-top: 1px solid var(--border-color);
}

.info-item {
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--white);
  border-radius: 16px;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
}

.info-item:hover {
  transform: translateY(-5px);
}

.info-item h4 {
  color: var(--secondary-color);
  margin-bottom: 1rem;
  font-size: 1.3rem;
  font-weight: 600;
}

.info-item p {
  color: var(--text-light);
  margin: 0;
  font-size: 1.1rem;
}

/* Footer Styles */
.site-footer {
  background: var(--secondary-color);
  color: var(--white);
  padding: 3rem 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-info p {
  margin-bottom: 0.8rem;
  font-size: 1.05rem;
}

.footer-contact {
  opacity: 0.9;
}

.footer-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-nav span {
  font-weight: 600;
  font-size: 1.1rem;
}

.whatsapp-btn {
  display: inline-block;
  transition: transform 0.3s ease;
}

.whatsapp-btn:hover {
  transform: scale(1.1);
}

/* Responsive Design */
@media (max-width: 1200px) {
  .four-products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
}

@media (max-width: 1024px) {
  .hero-content h1 {
    font-size: 2.4rem;
  }
  
  .section h2 {
    font-size: 2.2rem;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }
  
  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    display: none;
    padding: 1rem 0;
  }
  
  .nav.open {
    display: block;
  }
  
  .nav ul {
    flex-direction: column;
    padding: 0 1rem;
    gap: 0;
  }
  
  .nav li {
    border-bottom: 1px solid var(--border-color);
  }
  
  .nav a {
    display: block;
    padding: 1rem 0;
    font-size: 1.1rem;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }
  
  .hero-content h1 {
    font-size: 2.2rem;
  }
  
  .hero-content p {
    font-size: 1.2rem;
  }
  
  .three-columns {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .four-products-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .products-row {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .form-row {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .contact-form {
    padding: 2rem;
  }
  
  .contact-section {
    padding: 3rem 1.5rem;
    margin: 2rem auto;
  }
  
  .footer-inner {
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
  }
  
  .product-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  
  .floating-whatsapp {
    bottom: 1.5rem;
    right: 1.5rem;
    width: 55px;
    height: 55px;
    font-size: 1.6rem;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 3rem 0;
  }
  
  .section {
    padding: 3rem 0;
  }
  
  .section h2 {
    font-size: 2rem;
  }
  
  .hero-content h1 {
    font-size: 1.8rem;
  }
  
  .product-header {
    padding: 1.5rem 1.5rem 1rem;
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }
  
  .product-title h2 {
    font-size: 1.4rem;
  }
  
  .project-media,
  .product-content {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
  
  .floating-whatsapp {
    bottom: 1rem;
    right: 1rem;
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
  }
  
  .product-icon-small {
    width: 70px;
    height: 70px;
    font-size: 1.8rem;
  }
  
  .product-card-small {
    padding: 2rem 1.5rem;
  }
}