*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
:root {
  --green: #2e7d32; --green-dark: #1b5e20; --green-light: #e8f5e9;
  --orange: #f57c00; --orange-dark: #e65100; --orange-light: #fff3e0;
  --yellow: #ffc107; --yellow-light: #fff8e1;
  --white: #ffffff; --gray-50: #fafafa; --gray-100: #f5f5f5;
  --gray-200: #eeeeee; --gray-300: #e0e0e0; --gray-400: #bdbdbd;
  --gray-500: #9e9e9e; --gray-600: #757575; --gray-700: #616161;
  --gray-800: #424242; --gray-900: #212121;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08); --shadow-md: 0 4px 20px rgba(0,0,0,.1);
  --shadow-lg: 0 10px 40px rgba(0,0,0,.12);
  --radius: 16px; --radius-lg: 24px;
  --transition: 0.3s cubic-bezier(.4,0,.2,1);
}
body {
  font-family: 'Inter', sans-serif; color: var(--gray-800);
  background: var(--gray-50); line-height: 1.6;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--green); border-radius: 4px; }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,.97); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  transition: var(--transition); height: 72px;
}
.navbar.scrolled { box-shadow: var(--shadow-md); }
.navbar .container {
  display: flex; align-items: center; justify-content: space-between; height: 72px;
}
.logo {
  display: flex; align-items: center; gap: 10px; font-size: 1.5rem; font-weight: 800;
  color: var(--green-dark);
}
.logo i { font-size: 1.8rem; color: var(--orange); }
.logo span { color: var(--orange); }
.nav-links { list-style: none; display: flex; align-items: center; gap: 6px; }
.nav-links a {
  font-size: .88rem; font-weight: 500; color: var(--gray-600);
  padding: 8px 16px; border-radius: 8px; transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--green); background: var(--green-light); }
.hamburger {
  display: none; flex-direction: column; gap: 5px; cursor: pointer;
  background: none; border: none; padding: 4px;
}
.hamburger span { width: 26px; height: 2.5px; background: var(--gray-800); border-radius: 2px; transition: var(--transition); }

/* ===== PAGE HERO ===== */
.page-hero {
  padding: 120px 0 60px; position: relative; overflow: hidden;
}
.page-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; color: var(--gray-900);
  margin-bottom: 12px;
}
.page-hero p {
  font-size: 1.05rem; color: var(--gray-500); max-width: 560px;
}

/* ===== SECTION ===== */
section { padding: 80px 0; }
.section-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--green-light); color: var(--green-dark);
  padding: 6px 16px; border-radius: 50px; font-size: .85rem; font-weight: 600;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.6rem, 2.8vw, 2.5rem); font-weight: 800; color: var(--gray-900);
  margin-bottom: 12px;
}
.section-sub {
  font-size: 1.05rem; color: var(--gray-500); max-width: 600px;
  margin-bottom: 40px;
}
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; gap: 10px; padding: 13px 30px;
  border-radius: 50px; font-weight: 600; font-size: .95rem;
  transition: var(--transition); cursor: pointer; border: none; font-family: inherit;
}
.btn-primary { background: var(--green); color: var(--white); box-shadow: 0 4px 15px rgba(46,125,50,.35); }
.btn-primary:hover { background: var(--green-dark); transform: translateY(-2px); box-shadow: 0 8px 25px rgba(46,125,50,.4); }
.btn-outline { background: transparent; color: var(--green); border: 2px solid var(--green); }
.btn-outline:hover { background: var(--green); color: var(--white); transform: translateY(-2px); }
.btn-orange { background: var(--orange); color: var(--white); box-shadow: 0 4px 15px rgba(245,124,0,.35); }
.btn-orange:hover { background: var(--orange-dark); transform: translateY(-2px); }

/* ===== CARDS ===== */
.card {
  background: var(--white); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); border: 1px solid var(--gray-200);
  overflow: hidden; transition: var(--transition);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

/* ===== IMAGE FALLBACK ===== */
.img-wrap {
  position: relative; overflow: hidden; background: var(--gray-100);
}
.img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.img-wrap:hover img { transform: scale(1.05); }

/* ===== ANIMATIONS ===== */
.fade-up { opacity: 0; transform: translateY(40px); transition: all .7s cubic-bezier(.4,0,.2,1); }
.fade-up.show { opacity: 1; transform: translateY(0); }

/* ===== FOOTER ===== */
.footer {
  background: var(--gray-900); color: rgba(255,255,255,.7); padding: 50px 0 24px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 32px;
}
.footer h4 { color: var(--white); font-weight: 700; margin-bottom: 16px; }
.footer p { font-size: .9rem; line-height: 1.7; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: .9rem; transition: var(--transition); }
.footer-links a:hover { color: var(--green); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); padding-top: 20px;
  display: flex; justify-content: space-between; align-items: center; font-size: .85rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav-links {
    position: fixed; top: 72px; left: 0; right: 0; flex-direction: column;
    background: var(--white); padding: 20px; gap: 4px;
    box-shadow: var(--shadow-lg); transform: translateY(-120%);
    transition: var(--transition); opacity: 0;
  }
  .nav-links.open { transform: translateY(0); opacity: 1; }
  .hamburger { display: flex; }
  section { padding: 60px 0; }
  .page-hero { padding: 100px 0 40px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}
@media (max-width: 480px) {
  .btn { padding: 11px 24px; font-size: .88rem; }
}