:root {
  --green: #00703d;
  --green-light: #00904d;
  --dark: #1a1a1a;
  --dark-card: #222222;
  --dark-lighter: #2a2a2a;
  --grey-text: #b0b0b0;
  --white: #ffffff;
}

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

body {
  font-family: 'Inter', 'Segoe UI', sans-serif;
  background-color: var(--white);
  color: #333;
  line-height: 1.6;
}

/* HEADER */
header {
  background: var(--dark);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 70px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
  text-decoration: none;
  letter-spacing: -0.5px;
}

.logo span {
  color: var(--green);
}

nav {
  display: flex;
  gap: 8px;
}

nav a {
  color: var(--white);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background 0.2s, color 0.2s;
}

nav a:hover,
nav a.active {
  background: var(--green);
  color: var(--white);
}

/* MOBILE MENU */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.5rem;
  cursor: pointer;
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: block;
  }
  nav {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--dark);
    flex-direction: column;
    padding: 16px;
    gap: 4px;
  }
  nav.open {
    display: flex;
  }
  nav a {
    padding: 12px 16px;
  }
}

/* HERO */
.hero {
  background: linear-gradient(135deg, var(--dark) 0%, #0a2e1a 100%);
  color: var(--white);
  padding: 100px 24px 80px;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.hero h1 span {
  color: var(--green);
}

.hero p {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.8);
  max-width: 700px;
  margin: 0 auto 32px;
}

.hero .cta-btn {
  display: inline-block;
  background: var(--green);
  color: var(--white);
  padding: 14px 32px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: background 0.2s, transform 0.15s;
}

.hero .cta-btn:hover {
  background: var(--green-light);
  transform: translateY(-2px);
}

/* SECTIONS */
.section {
  padding: 80px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-dark {
  background: #f5f5f5;
  padding: 80px 24px;
}

.section-dark .section-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: #666;
  margin-bottom: 48px;
}

.green-accent {
  width: 60px;
  height: 4px;
  background: var(--green);
  margin-bottom: 24px;
  border-radius: 2px;
}

/* CARDS GRID */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.card {
  background: var(--white);
  border: 1px solid #e8e8e8;
  border-radius: 12px;
  padding: 32px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}

.card-green-border {
  border-left: 4px solid var(--green);
}

.card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.card p {
  color: #555;
  font-size: 0.95rem;
  line-height: 1.6;
}

.card .tag {
  display: inline-block;
  background: rgba(0,112,61,0.1);
  color: var(--green);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 12px;
}

/* STATS */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  margin: 40px 0;
}

.stat-card {
  text-align: center;
  padding: 32px 16px;
  background: var(--white);
  border-radius: 12px;
  border: 1px solid #e8e8e8;
}

.stat-card .number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--green);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-card .label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 4px;
}

.stat-card .desc {
  font-size: 0.85rem;
  color: #888;
}

/* TABLE */
.specs-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

.specs-table thead {
  background: var(--green);
  color: var(--white);
}

.specs-table th {
  padding: 14px 20px;
  text-align: left;
  font-weight: 600;
  font-size: 0.9rem;
}

.specs-table td {
  padding: 14px 20px;
  border-bottom: 1px solid #eee;
  font-size: 0.9rem;
}

.specs-table tbody tr:nth-child(even) {
  background: #f9f9f9;
}

.specs-table tbody tr:hover {
  background: rgba(0,112,61,0.04);
}

/* PROJECT CARDS */
.project-card {
  background: var(--white);
  border: 1px solid #e8e8e8;
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}

.project-card .project-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.project-card .project-info {
  padding: 24px;
}

.project-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.project-card p {
  color: #555;
  font-size: 0.9rem;
  margin-bottom: 6px;
}

.project-card .badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0,112,61,0.1);
  color: var(--green);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 12px;
}

/* PARTNER LOGOS */
.partners-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  padding: 40px 0;
}

.partners-row img {
  height: 50px;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.partners-row img:hover {
  opacity: 1;
}

/* FOOTER */
footer {
  background: var(--dark);
  color: var(--white);
  padding: 60px 24px 30px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--green);
}

.footer-col p,
.footer-col a {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  line-height: 2;
  text-decoration: none;
}

.footer-col a:hover {
  color: var(--green);
}

.footer-bottom {
  max-width: 1200px;
  margin: 40px auto 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  color: rgba(255,255,255,0.4);
  font-size: 0.85rem;
}

/* CONTACT FORM */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 2rem;
  }
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-info-item .icon {
  width: 48px;
  height: 48px;
  background: rgba(0,112,61,0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-info-item h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
}

.contact-info-item p {
  font-size: 0.9rem;
  color: #555;
}

/* ADVANTAGES LIST */
.advantages-list {
  list-style: none;
  padding: 0;
}

.advantages-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.95rem;
  color: #444;
}

.advantages-list li::before {
  content: "✓";
  color: var(--green);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* PAGE HEADER */
.page-header {
  background: linear-gradient(135deg, var(--dark) 0%, #0a2e1a 100%);
  color: var(--white);
  padding: 60px 24px;
  text-align: center;
}

.page-header h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.page-header p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.7);
  max-width: 600px;
  margin: 0 auto;
}