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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  color: #1a1a1a;
  background: #f8f9f5;
  line-height: 1.65;
  font-size: 18px;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
}

section {
  scroll-margin-top: 90px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 18px 42px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.15rem;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: #2d6a4f;
  color: white;
}

.btn-primary:hover {
  background: #062116;
  transform: translateY(-2px);
}

/* ===== Navbar ===== */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  height: 90px;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 60px;
  z-index: 1000;
  box-shadow: 0 2px 25px rgba(0,0,0,0.07);
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: #1b4332;
  font-weight: 800;
  font-size: 1.7rem;
}

.logo img {
  height: 52px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 48px;
  margin-left: auto;
}

.nav-links a {
  text-decoration: none;
  color: #333;
  font-weight: 600;
  font-size: 1.2rem;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: #4caf77;               /* much brighter green */
  text-shadow: 0 0 8px rgba(76, 175, 119, 0.4);
}

.menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.9rem;
  color: #1b4332;
  cursor: pointer;
}

/* ===== Hero ===== */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  color: white;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 950px;
  padding: 0 20px;
}

.hero-content h1 {
  font-size: 4.8rem;
  font-weight: 800;
  margin-bottom: 28px;
  line-height: 1.1;
}

.hero-content p {
  font-size: 1.55rem;
  font-weight: 500;
  opacity: 0.95;
}

/* ===== About ===== */
.about {
  padding: 180px 0;          /* much taller */
  background: white;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-image img {
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 30px 60px rgba(0,0,0,0.13);
}

.about-text h2 {
  font-size: 3.1rem;
  font-weight: 800;
  color: #1b4332;
  margin-bottom: 28px;
}

.about-text p {
  color: #555;
  margin-bottom: 20px;
  font-size: 1.25rem;
  font-weight: 500;
}

/* ===== Services ===== */
.services {
  padding: 180px 0;          /* much taller */
  background: #f0f4ef;
}

.section-title {
  text-align: center;
  font-size: 3.1rem;
  font-weight: 800;
  color: #1b4332;
  margin-bottom: 16px;
}

.section-subtitle {
  text-align: center;
  color: #666;
  font-size: 1.3rem;
  font-weight: 500;
  margin-bottom: 60px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 36px;
}

.service-card {
  background: white;
  padding: 55px 36px;
  border-radius: 20px;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 10px 30px rgba(0,0,0,0.06);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 25px 50px rgba(0,0,0,0.12);
}

.service-card i {
  font-size: 3rem;
  color: #2d6a4f;
  margin-bottom: 26px;
}

.service-card h3 {
  margin-bottom: 16px;
  color: #1b4332;
  font-size: 1.55rem;
  font-weight: 700;
}

.service-card p {
  color: #666;
  font-size: 1.12rem;
  font-weight: 500;
}

/* ===== Before & After ===== */
.before-after {
  padding: 180px 0;          /* much taller */
  background: #f8f9f5;
}

.gallery-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  max-width: 1300px;
  margin: 0 auto;
}

.gallery-side {
  text-align: center;
}

.gallery-label {
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: 3px;
  color: #2d6a4f;
  margin-bottom: 22px;
}

.gallery-container {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.14);
  background: #e8efe9;
}

.gallery-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.8s ease;
}

.gallery-img.active {
  opacity: 1;
  z-index: 1;
}

/* ===== Contact ===== */
.contact {
  padding: 180px 0;          /* much taller */
  background: white;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 80px;
  margin-top: 60px;
}

.info-item {
  display: flex;
  gap: 22px;
  margin-bottom: 36px;
}

.info-item i {
  font-size: 1.8rem;
  color: #2d6a4f;
  margin-top: 5px;
}

.info-item h4 {
  color: #1b4332;
  margin-bottom: 8px;
  font-size: 1.3rem;
  font-weight: 700;
}

.info-item a {
  color: #555;
  text-decoration: none;
  font-size: 1.18rem;
  font-weight: 500;
  transition: color 0.3s;
}

.info-item a:hover {
  color: #2d6a4f;
}

.socials {
  display: flex;
  gap: 18px;
  margin-top: 14px;
}

.socials a {
  width: 54px;
  height: 54px;
  background: #e8f5e9;
  color: #2d6a4f;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  transition: all 0.3s;
}

.socials a:hover {
  background: #2d6a4f;
  color: white;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-form input,
.contact-form textarea {
  padding: 19px 22px;
  border: 1px solid #ddd;
  border-radius: 14px;
  font-size: 1.15rem;
  font-family: inherit;
  font-weight: 500;
  transition: border-color 0.3s;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: #2d6a4f;
}

.contact-form button {
  align-self: flex-start;
  margin-top: 12px;
}

/* ===== Footer ===== */
footer {
  background: #1b4332;
  color: white;
  text-align: center;
  padding: 50px 0;
  font-size: 1.1rem;
  font-weight: 500;
}

/* ===== Responsive ===== */
@media (max-width: 1100px) {
  .container {
    max-width: 100%;
    padding: 0 30px;
  }

  .hero-content h1 {
    font-size: 3.8rem;
  }
}

@media (max-width: 900px) {
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-content h1 {
    font-size: 3.2rem;
  }

  .section-title {
    font-size: 2.6rem;
  }
}

@media (max-width: 768px) {
  .menu-btn {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: white;
    flex-direction: column;
    align-items: center;
    padding: 40px 0;
    gap: 26px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    transform: translateY(-150%);
    transition: 0.3s ease;
  }

  .nav-links.active {
    transform: translateY(0);
  }

  .navbar {
    padding: 0 24px;
    height: 75px;
  }

  .logo img {
    height: 42px;
  }

  .gallery-pair {
    grid-template-columns: 1fr;
    gap: 60px;
  }

  .hero-content h1 {
    font-size: 2.7rem;
  }

  .section-title {
    font-size: 2.4rem;
  }

  .container {
    padding: 0 20px;
  }

  .about,
  .services,
  .before-after,
  .contact {
    padding: 110px 0;
  }
}

/* Navbar hide/show on scroll */
.navbar {
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.navbar.hidden {
  transform: translateY(-100%);
}