:root {
  /* Logo Colors: Red (S), Green (E), Blue (Text) */
  --primary-color: #E63946;
  /* Red - Main Brand Color (from 'S') */
  --secondary-color: #4CAF50;
  /* Green - Secondary Brand Color (from 'E' / Eco) */
  --accent-color: #1A237E;
  /* Deep Blue - Text Accent (Professional) */
  --text-dark: #2c3e50;
  --text-light: #525f7f;
  --bg-light: #f8f9fa;
  --white: #FFFFFF;
  --glass-bg: rgba(255, 255, 255, 0.95);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --font-main: 'Inter', sans-serif;
}

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

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

a {
  text-decoration: none;
  color: inherit;
  transition: 0.3s;
}

ul {
  list-style: none;
}

/* Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.btn {
  display: inline-block;
  padding: 12px 30px;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-primary {
  background: var(--primary-color);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(0, 78, 137, 0.3);
}

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

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

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

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.section-title p {
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* Header */
header {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-links {
  display: flex;
  gap: 30px;
}

.nav-links a {
  font-weight: 500;
  color: var(--text-dark);
}

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

/* Hero Section */
.hero {
  height: 100vh;
  background: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), url('/hero_bg_v2.png');
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  text-align: center;
  color: var(--white);
  padding-top: 80px;
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

/* Why Choose Us */
.features {
  padding: 5rem 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.feature-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 15px;
  box-shadow: var(--shadow);
  text-align: center;
  transition: transform 0.3s;
  display: flex;
  flex-direction: column;
  align-items: center;
}

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

.feature-icon {
  width: 50px;
  height: 50px;
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

.feature-icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

/* About Section */
.about {
  padding: 5rem 0;
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.about-img img {
  width: 100%;
  border-radius: 20px;
  box-shadow: var(--shadow);
}

/* Products Section */
.products {
  padding: 5rem 0;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.product-card {
  background: var(--white);
  border-radius: 15px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.product-img {
  height: 250px;
  background: #eee;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-info {
  padding: 1.5rem;
}

/* Services Section */
.services {
  padding: 5rem 0;
  background: var(--secondary-color);
  color: var(--white);
}

.services .section-title h2 {
  color: var(--white);
}

.services .section-title p {
  color: rgba(255, 255, 255, 0.8);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(480px, 1fr));
  gap: 30px;
}

.service-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(5px);
  padding: 2rem;
  border-radius: 15px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Contact Section */
.contact {
  padding: 5rem 0;
  background: var(--white);
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}

.contact-card {
  background: var(--bg-light);
  padding: 3rem;
  border-radius: 15px;
  box-shadow: var(--shadow);
}

.map-container {
  height: 100%;
  min-height: 400px;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 15px;
  margin-bottom: 20px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-family: inherit;
}

.contact-card {
  background: var(--bg-light);
  padding: 2rem;
  border-radius: 15px;
}

footer {
  background: #1a1a1a;
  color: var(--white);
  padding: 2rem 0;
  text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hero-content h1 {
    font-size: 2.2rem;
  }

  .hero-btns {
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
  }

  .hero-btns .btn {
    width: 100%;
    max-width: 280px;
    margin: 0 !important;
    /* Override inline margin */
  }

  .about-grid,
  .contact-container {
    grid-template-columns: 1fr;
  }
}