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

:root {
  --green: #03c41d;
  --green-dark: #029e17;
  --orange: #ff5d00;
  --orange-light: #ff8600;
  --text: #363636;
  --text-light: #666;
  --bg: #fff;
  --bg-gray: #f5f7f5;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --radius: 8px;
  --max-width: 1200px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Open Sans', 'Trebuchet MS', Arial, sans-serif;
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--orange);
  text-decoration: none;
  transition: color 0.2s;
}

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.logo a {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: Quicksand, sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--green);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.logo img {
  height: 40px;
  width: auto;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text);
  cursor: pointer;
  padding: 8px;
}

.main-nav ul {
  display: flex;
  gap: 4px;
}

.main-nav a {
  display: block;
  padding: 8px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  border-radius: 6px;
  transition: all 0.2s;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--green);
  background: rgba(3,196,29,0.08);
}

/* Hero */
.hero {
  padding: 120px 0 60px;
  background: linear-gradient(135deg, #f5f7f5 0%, #e8f5e9 50%, #fef3e8 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero h1 {
  font-family: Quicksand, sans-serif;
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: var(--green);
  margin-bottom: 16px;
  line-height: 1.2;
}

.hero .subtitle {
  font-family: Quicksand, sans-serif;
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  color: var(--orange);
  font-weight: 600;
}

/* Sections */
section {
  padding: 60px 0;
}

section:nth-child(even) {
  background: var(--bg-gray);
}

.section-title {
  font-family: Quicksand, sans-serif;
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--green);
  margin-bottom: 24px;
  line-height: 1.3;
}

.section-text {
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 16px;
}

h3 {
  font-family: Quicksand, sans-serif;
  font-size: 1.15rem;
  color: var(--green-dark);
  margin: 24px 0 12px;
}

/* Services Grid */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
  transition: transform 0.2s;
}

.card:hover {
  transform: translateY(-4px);
}

.card h3 {
  font-family: Quicksand, sans-serif;
  font-size: 1.2rem;
  color: var(--green);
  margin-bottom: 12px;
}

.card ul {
  padding-left: 0;
}

.card li {
  padding: 4px 0;
  padding-left: 20px;
  position: relative;
  font-size: 0.95rem;
}

.card li::before {
  content: "›";
  position: absolute;
  left: 4px;
  color: var(--orange);
  font-weight: 700;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 50px;
  font-family: Quicksand, sans-serif;
  font-weight: 700;
  font-size: 1rem;
  text-align: center;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--orange);
  color: #fff;
}

.btn-primary:hover {
  background: var(--green);
  color: #fff;
}

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

.btn-outline:hover {
  background: var(--orange);
  color: #fff;
}

/* Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.gallery-grid img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
  transition: transform 0.3s;
}

.gallery-grid img:hover {
  transform: scale(1.03);
}

/* Contact */
.contact-info {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
}

.contact-info p {
  margin-bottom: 8px;
}

.contact-info .phone {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--green);
}

/* Footer */
.site-footer {
  background: #1a1a1a;
  color: #aaa;
  padding: 40px 0 24px;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.footer-grid h4 {
  font-family: Quicksand, sans-serif;
  color: #fff;
  margin-bottom: 16px;
  font-size: 1rem;
}

.footer-grid a {
  color: #aaa;
  display: block;
  margin-bottom: 6px;
}

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

.footer-bottom {
  border-top: 1px solid #333;
  padding-top: 20px;
  text-align: center;
  font-size: 0.8rem;
}

/* Utilities */
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-40 { margin-top: 40px; }
.text-center { text-align: center; }
.text-muted { font-size: 0.85rem; color: var(--text-light); }
.container-narrow { max-width: 800px; margin-inline: auto; }
.text-lead { font-family: Quicksand, sans-serif; font-weight: 700; }
.text-lead--orange { color: var(--orange); font-size: 1.2rem; }
.text-lead--green { color: var(--green); font-size: 1.3rem; text-align: center; margin-top: 20px; }
.fw-700 { font-weight: 700; }
.img-rounded { border-radius: var(--radius); }

/* Back to Top */
#back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background: var(--orange);
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s, background 0.2s;
  z-index: 99;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 12px rgba(255,93,0,0.4);
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

#back-to-top:hover {
  background: var(--green);
}

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

  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    box-shadow: var(--shadow);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .main-nav.open {
    max-height: 400px;
  }

  .main-nav ul {
    flex-direction: column;
    padding: 8px 16px;
  }

  .main-nav a {
    padding: 12px 16px;
    border-radius: 6px;
  }

  .grid-2 {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  #back-to-top {
    bottom: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
    font-size: 1.3rem;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  section {
    padding: 40px 0;
  }

  .hero {
    padding: 100px 0 40px;
  }
}