/* ============================================
   HUON VALLEY TREE CARE — Styles
   ============================================ */

/* ---------- Variables ---------- */
:root {
  --green: #1B4332;
  --green-light: #2D6A4F;
  --green-dark: #142E23;
  --green-pale: #E8F5E9;
  --black: #111111;
  --dark: #1a1a1a;
  --gray-900: #222222;
  --gray-700: #555555;
  --gray-400: #999999;
  --gray-200: #e5e5e5;
  --gray-100: #f5f5f5;
  --white: #ffffff;
  --text-primary: #ffffff;
  --text-secondary: rgba(255,255,255,0.85);
  --text-muted: rgba(255,255,255,0.65);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --transition: 0.25s ease;
  --container: 1140px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--green);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font);
  font-weight: 600;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  text-align: center;
  line-height: 1.2;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--white);
  color: var(--green);
}
.btn-primary:hover { background: rgba(255,255,255,0.88); }

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.6);
}
.btn-secondary:hover { background: rgba(255,255,255,0.1); border-color: var(--white); }

.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-lg { padding: 14px 32px; font-size: 17px; }
.btn-full { width: 100%; }

/* ---------- Section base ---------- */
.section { padding: 80px 0; background: var(--green); }
.section:nth-child(even) { background: var(--green-dark); }
.section h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}
.section-intro {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 640px;
  margin-bottom: 40px;
}

/* ========== HEADER ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--green-dark);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: 0 2px 12px rgba(0,0,0,0.3); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo img { border-radius: 50%; filter: brightness(0) invert(1); }
.main-nav {
  display: flex;
  gap: 28px;
}
.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  transition: color var(--transition);
  position: relative;
}
.main-nav a:hover { color: var(--white); }
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--white);
  transition: width var(--transition);
}
.main-nav a:hover::after { width: 100%; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}
.header-phone {
  font-weight: 600;
  font-size: 15px;
  color: var(--white);
}

/* Mobile menu button */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.mobile-menu-btn.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-menu-btn.active span:nth-child(2) { opacity: 0; }
.mobile-menu-btn.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav */
.mobile-nav {
  display: none;
  flex-direction: column;
  padding: 16px 20px 24px;
  background: var(--green-dark);
  border-top: 1px solid rgba(255,255,255,0.08);
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 12px 0;
  font-size: 16px;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.mobile-nav a:last-child { border-bottom: none; margin-top: 8px; }
.mobile-nav a.btn { color: var(--green); }

/* ========== HERO ========== */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: url('images/hero.webp') center center / cover no-repeat;
  margin-top: 72px;
}
.no-webp .hero {
  background: url('images/hero.jpg') center center / cover no-repeat;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.55), rgba(0,0,0,0.7));
}
.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--white);
  padding: 40px 20px;
}
.hero h1 {
  font-size: 3.2rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}
.hero-tagline {
  font-size: 1.3rem;
  font-weight: 400;
  opacity: 0.95;
  margin-bottom: 8px;
}
.hero-sub {
  font-size: 1rem;
  opacity: 0.8;
  margin-bottom: 20px;
}
.hero-badge {
  display: inline-block;
  background: var(--white);
  color: var(--green);
  font-weight: 700;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 8px 20px;
  border-radius: 50px;
  margin-bottom: 28px;
}
.hero-ctas {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========== ABOUT ========== */
.about-inner { max-width: 760px; }
.about-inner h2 { margin-bottom: 20px; }
.about-inner p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 16px;
}
.about-inner p:last-child { margin-bottom: 0; }

/* ========== SERVICES ========== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.service-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: background var(--transition), transform var(--transition);
}
.service-card:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-4px);
}
.service-card-img {
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: rgba(255,255,255,0.05);
}
.service-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.service-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  padding: 20px 24px 8px;
  color: var(--text-primary);
}
.service-card p {
  padding: 0 24px 24px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ========== GALLERY ========== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}
.gallery-item {
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  cursor: pointer;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}
.gallery-item:hover img { transform: scale(1.05); }

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.92);
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.lightbox.open { display: flex; }
.lightbox-img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius);
  object-fit: contain;
}
.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  background: none;
  border: none;
  color: var(--white);
  cursor: pointer;
  font-size: 2rem;
  padding: 12px;
  opacity: 0.8;
  transition: opacity var(--transition);
}
.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover { opacity: 1; }
.lightbox-close { top: 16px; right: 20px; font-size: 2.5rem; }
.lightbox-prev { left: 16px; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 16px; top: 50%; transform: translateY(-50%); }

/* ========== AREAS ========== */
.areas-group { margin-bottom: 32px; }
.areas-group:last-child { margin-bottom: 0; }
.areas-group h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--white);
}
.areas-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.areas-tags span {
  display: inline-block;
  background: rgba(255,255,255,0.08);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 50px;
  border: 1px solid rgba(255,255,255,0.15);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.areas-tags span:hover {
  background: var(--white);
  color: var(--green);
  border-color: var(--white);
}

/* ========== CONTACT ========== */
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}
.contact-info h2 { margin-bottom: 12px; }
.contact-info p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 1.05rem;
}
.contact-phone,
.contact-email {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 12px;
  transition: opacity var(--transition);
}
.contact-phone:hover,
.contact-email:hover { opacity: 0.8; }

/* Form */
.contact-form-wrap {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 32px;
  border-radius: var(--radius-lg);
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 6px;
  color: var(--text-primary);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font);
  font-size: 15px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.08);
  color: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
  -webkit-appearance: none;
}
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23ffffff' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: rgba(255,255,255,0.4);
  box-shadow: 0 0 0 3px rgba(255,255,255,0.08);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,0.4); }
.form-group select option { background: var(--green-dark); color: var(--white); }

.form-status {
  margin-top: 16px;
  font-weight: 500;
  font-size: 15px;
  text-align: center;
}
.form-status.success { color: var(--green-pale); }
.form-status.error { color: #ff6b6b; }

/* ========== FOOTER ========== */
.site-footer {
  background: var(--dark);
  color: var(--gray-400);
  padding: 48px 0 32px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.footer-brand img {
  border-radius: 50%;
  margin-bottom: 12px;
  filter: brightness(0) invert(1);
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
}
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-contact a {
  color: var(--gray-400);
  font-size: 15px;
  transition: color var(--transition);
}
.footer-contact a:hover { color: var(--white); }

.footer-social {
  display: flex;
  gap: 16px;
}
.footer-social a {
  color: var(--gray-400);
  transition: color var(--transition);
}
.footer-social a:hover { color: var(--white); }

.footer-copy {
  grid-column: 1 / -1;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  font-size: 13px;
  text-align: center;
}

/* ========== RESPONSIVE ========== */

/* Tablet */
@media (max-width: 900px) {
  .main-nav { display: none; }
  .header-phone { display: none; }
  .mobile-menu-btn { display: flex; }
  .header-actions .btn-sm { display: none; }

  .hero h1 { font-size: 2.4rem; }
  .hero-tagline { font-size: 1.1rem; }

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

  .contact-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    text-align: center;
  }
  .footer-social { justify-content: center; }
}

/* Mobile */
@media (max-width: 600px) {
  .section { padding: 56px 0; }
  .section h2 { font-size: 1.6rem; }

  .hero { min-height: 80vh; }
  .hero h1 { font-size: 1.9rem; }
  .hero-tagline { font-size: 1rem; }
  .hero-ctas { flex-direction: column; align-items: center; }
  .hero-ctas .btn-lg { width: 100%; max-width: 320px; }

  .services-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; gap: 8px; }

  .contact-form-wrap { padding: 20px; }

  .lightbox-prev { left: 4px; }
  .lightbox-next { right: 4px; }
}