:root {
  --light-green: #A5D6A7;   /* lighter green */
  --medium-green: #4CAF50;  /* medium green */
  --dark-green: #2E7D32;    /* dark green */
  --accent: #00695C;        /* gold CTA */
  --text-light: #ffffff;    /* white text */
  --muted: #d5ead6;         /* soft light for secondary text on dark bg */
}

/* Reset & base */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial;
  color: var(--text-light);
  background: var(--dark-green);
  line-height: 1.6;
}
a { text-decoration: none; transition: color 0.3s ease; color: var(--text-light); }
img { max-width: 100%; height: auto; display: block; border-radius: 8px; }
.container { width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 16px; }

/* Logo text fallback */
.logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-light);
  font-weight: 700;
  font-size: 18px;
}

.logo img {
  height: 50px;
  width: auto;
}

.logo-type {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-light);
  white-space: nowrap;
}

@media (max-width: 768px) {
  .logo img {
    height: 40px;
  }
  .logo-type {
    font-size: 16px;
  }
}


/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 6px;
  font-weight: 700;
  background: var(--accent);
  color: var(--text-light);
  transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.btn:hover { background: #00695C; transform: translateY(-2px); box-shadow: 0 8px 16px rgba(0,0,0,0.2); }
.btn.outline {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
}
.btn.outline:hover { background: var(--accent); color: var(--text-light); }

/* Sections */
.section { padding: 64px 0; }
.section-title { font-size: 28px; margin-bottom: 12px; color: var(--text-light); }
.section-sub { color: var(--light-green); margin-bottom: 24px; }
.section.alt { background: var(--medium-green); }

/* Grid */
.grid { display: grid; gap: 24px; }
@media (min-width: 768px) {
  .grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
  .grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
  .grid.cols-1 { grid-template-columns: 1fr; }
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  background: var(--dark-green);
  z-index: 10;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-list { list-style: none; display: flex; gap: 16px; align-items: center; }
.nav-list li { display: flex; align-items: center; }
.nav-list a { padding: 8px 10px; color: var(--text-light); font-weight: 500; display: flex; align-items: center; }

/* Hamburger icon */
.nav-toggle {
  display: none;
  font-size: 28px;
  cursor: pointer;
  margin-left: auto;
  color: var(--text-light);
}

/* Mobile nav */
@media (max-width: 768px) {
  .nav-list {
    flex-direction: column;
    background: var(--dark-green);
    position: absolute;
    top: 64px;
    right: 0;
    width: 240px;
    padding: 16px;
    display: none;
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 12px;
    box-shadow: 0 12px 20px rgba(0,0,0,0.35);
  }
  .nav-list.active { display: flex; }
  .nav-toggle { display: block; }
}

/* Hero */
.hero { background: linear-gradient(135deg, var(--medium-green), var(--dark-green)); color: var(--text-light); }
.hero-inner {
  display: grid;
  gap: 24px;
  align-items: center;
  padding: 48px 0;
  text-align: center;
}
@media (min-width: 900px) {
  .hero-inner { grid-template-columns: 1.2fr 0.8fr; text-align: left; }
}
.hero h1 { font-size: 34px; margin-bottom: 12px; }
.hero p {margin-bottom: 16px; color: var(--muted); }
.cta-row { display: flex; gap: 12px; justify-content: center; }
@media (min-width: 900px) {
  .cta-row { justify-content: flex-start; }
}

/* Cards */
.card {
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 12px;
  padding: 16px;
  background: rgba(27,94,32,0.75);
  color: var(--text-light);
  backdrop-filter: blur(3px);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 12px rgba(0,0,0,0.25);
}
.card h3 { margin-bottom: 8px; color: #FFC107; }

/* Comparison table */
.table-wrap { overflow-x: auto; }
.compare {
  width: 100%;
  border-collapse: collapse;
  border-radius: 12px;
  overflow: hidden;
}
.compare thead th {
  background: var(--dark-green);
  color: var(--text-light);
  padding: 12px;
  text-align: left;
  border-bottom: 2px solid rgba(255,255,255,0.15);
}
.compare tbody td {
  padding: 12px;
  background: rgba(27,94,32,0.6);
  color: var(--text-light);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.compare tbody tr:nth-child(even) td { background: rgba(67,160,71,0.55); }

@media (max-width: 768px) {
  .compare thead { display: none; }
  .compare tbody tr {
    display: block;
    margin-bottom: 16px;
    border-radius: 8px;
    overflow: hidden;
  }
  .compare tbody td {
    display: block;
    text-align: left;
    padding: 8px 12px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }
  .compare tbody td:first-child {
    background: var(--dark-green);
    font-weight: 600;
    text-align: center;
  }
  .compare tbody td:nth-child(2):before {
    content: "Traditional: ";
    font-weight: 600;
    color: var(--light-green);
  }
  .compare tbody td:nth-child(3):before {
    content: "Trenchless: ";
    font-weight: 600;
    color: var(--light-green);
  }
}

/* Footer */
.site-footer {
  background: var(--dark-green);
  color: var(--text-light);
  padding: 48px 0;
}
.site-footer a { color: var(--text-light); }
.site-footer h4 { margin-top: 0; color: var(--text-light); }
.legal {
  border-top: 1px solid rgba(255,255,255,0.3);
  margin-top: 24px;
  padding-top: 16px;
  text-align: center;
  font-size: 14px;
  color: var(--text-light);
}

/* Forms */
form input, form textarea {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.08);
  color: var(--text-light);
  outline: none;
}
form input::placeholder, form textarea::placeholder { color: rgba(255,255,255,0.75); }
form button { justify-self: start; }
#status, .status { margin-top: 12px; color: var(--muted); }

/* Video slider */
.video-slider {
  position: relative;
  overflow: hidden;
  max-width: 600px;
  margin: 0 auto;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 12px;
  padding: 16px;
  background: rgba(82,183,136,0.75);
  color: var(--text-light);
  backdrop-filter: blur(3px);
  box-shadow: 0 8px 18px rgba(0,0,0,0.25);
}
.video-slider .video-slides {
  display: flex;
  transition: transform 0.6s ease-in-out;
}
.video-slider video {
  min-width: 100%;
  height: 300px;
  object-fit: cover;
  display: block;
  border-radius: 8px;
}
.video-slider .prev,
.video-slider .next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(82,183,136,0.7);
  color: #fff;
  border: none;
  padding: 12px;
  cursor: pointer;
  border-radius: 50%;
  font-size: 20px;
  transition: background 0.3s;
}
.video-slider .prev:hover,
.video-slider .next:hover {
  background: rgba(82,183,136,0.9);
}
.video-slider .prev { left: 10px; }
.video-slider .next { right: 10px; }

@media (max-width: 768px) {
  .video-slider {
    max-width: 100%;
  }
  .video-slider video {
    height: 250px;
  }
}

/* Gallery slider */
.gallery-slider {
  position: relative;
  overflow: hidden;
  max-width: 600px;
  margin: 0 auto;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 12px;
  padding: 16px;
  background: rgba(82,183,136,0.75);
  color: var(--text-light);
  backdrop-filter: blur(3px);
  box-shadow: 0 8px 18px rgba(0,0,0,0.25);
}
.gallery-slider .slides {
  display: flex;
  transition: transform 0.6s ease-in-out;
}
.gallery-slider img {
  min-width: 100%;
  object-fit: cover;
  height: 300px;
  border-radius: 8px;
}
.gallery-slider .prev,
.gallery-slider .next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(82,183,136,0.7);
  color: #fff;
  border: none;
  padding: 12px;
  cursor: pointer;
  border-radius: 50%;
  font-size: 20px;
  transition: background 0.3s;
}
.gallery-slider .prev:hover,
.gallery-slider .next:hover {
  background: rgba(82,183,136,0.9);
}
.gallery-slider .prev { left: 10px; }
.gallery-slider .next { right: 10px; }

@media (max-width: 768px) {
  .gallery-slider {
    max-width: 100%;
  }
  .gallery-slider img {
    height: 250px;
  }
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0; top: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.6);
  justify-content: center;
  align-items: center;
  padding: 20px;
}
.modal-content {
  background: var(--medium-green);
  color: var(--text-light);
  border-radius: 12px;
  max-width: 520px;
  width: 100%;
  padding: 24px;
  position: relative;
  animation: slideDown 0.4s ease;
}
.modal .close {
  position: absolute;
  right: 16px;
  top: 12px;
  font-size: 28px;
  cursor: pointer;
  color: var(--accent);
}
@keyframes slideDown {
  from { transform: translateY(-30px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
@media (max-width: 600px) {
  .modal-content { max-width: 95%; padding: 16px; }
}

/* Fade-in animation */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Floating Contact Icons */
.floating-icons {
  position: fixed;
  bottom: 80px;
  width: 100%;
  z-index: 1000;
  pointer-events: none;
}
.float-icon {
  position: absolute;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  pointer-events: auto;
}
.float-icon:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 16px rgba(0,0,0,0.4);
}
.call-icon {
  left: 20px;
  background: #007bff;
}
.whatsapp-icon {
  right: 20px;
  background: #25d366;
}
@media (max-width: 768px) {
  .float-icon {
    width: 50px;
    height: 50px;
  }
  .call-icon { left: 16px; }
  .whatsapp-icon { right: 16px; }
}

/* Social links */
.social-links {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  justify-content: center;
}
.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  transition: background 0.3s ease;
}
.social-links a:hover {
  background: rgba(255,255,255,0.2);
}