/* ============================================
   Superior Tree - Main Stylesheet
   Brand: #192F1D (deep forest green)
   ============================================ */

/* --- Design Tokens --- */
:root {
  --color-primary: #192F1D;
  --color-primary-light: #2A4A30;
  --color-primary-dark: #0F1D12;
  --color-accent: #D4A843;
  --color-accent-hover: #C49535;
  --color-bg: #FAFAF7;
  --color-bg-alt: #F0EDE6;
  --color-text: #2C2C2C;
  --color-text-light: #5A5A5A;
  --color-white: #FFFFFF;
  --color-border: #D6D3CC;
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --max-width: 1200px;
  --radius: 6px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.15);
  --transition: 0.25s ease;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-stack);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font: inherit; }

/* --- Skip Link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  z-index: 1000;
  font-weight: 600;
}
.skip-link:focus {
  top: 1rem;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-primary);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-white);
  font-weight: 700;
  font-size: 1.2rem;
}
.site-logo img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}
.site-logo span {
  letter-spacing: 0.02em;
}

/* --- Navigation --- */
.main-nav ul {
  display: flex;
  gap: 2rem;
  align-items: center;
}
.main-nav a {
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.25rem 0;
  position: relative;
  transition: color var(--transition);
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}
.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--color-white);
}
.main-nav a:hover::after,
.main-nav a:focus-visible::after {
  width: 100%;
}
.main-nav .nav-cta {
  background: var(--color-accent);
  color: var(--color-primary-dark);
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600;
  transition: background var(--transition);
}
.main-nav .nav-cta::after { display: none; }
.main-nav .nav-cta:hover,
.main-nav .nav-cta:focus-visible {
  background: var(--color-accent-hover);
}

/* --- Mobile Nav Toggle --- */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 32px;
  padding: 4px;
  z-index: 110;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: var(--color-primary-dark);
}
.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.45;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding: 3rem 1.5rem;
  color: var(--color-white);
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1rem;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.hero p {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  margin-bottom: 2rem;
  opacity: 0.92;
  text-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 0.85rem 2rem;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 1rem;
  text-align: center;
  transition: background var(--transition), transform 0.15s ease;
  cursor: pointer;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--color-accent);
  color: var(--color-primary-dark);
}
.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--color-accent-hover);
}
.btn-outline {
  border: 2px solid var(--color-accent);
  color: var(--color-accent);
  background: transparent;
}
.btn-outline:hover,
.btn-outline:focus-visible {
  background: var(--color-accent);
  color: var(--color-primary-dark);
}
.btn-white {
  background: var(--color-white);
  color: var(--color-primary);
}
.btn-white:hover,
.btn-white:focus-visible {
  background: var(--color-bg-alt);
}

/* --- Sections --- */
.section {
  padding: 4.5rem 1.5rem;
  border-bottom: 1px solid rgba(25,47,29,0.08);
}
.section-alt {
  background: var(--color-bg-alt);
}
.section-dark {
  background: var(--color-primary);
  color: var(--color-white);
  border-bottom: none;
}
.container {
  max-width: var(--max-width);
  margin: 0 auto;
}
.section-header {
  text-align: center;
  margin-bottom: 3rem;
}
.section-header h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.25rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}
.section-dark .section-header h2 {
  color: var(--color-white);
}
.section-header p {
  color: var(--color-text-light);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}
.section-dark .section-header p {
  color: rgba(255,255,255,0.8);
}
.accent-bar {
  width: 50px;
  height: 3px;
  background: var(--color-accent);
  margin: 0 auto 1rem;
  border-radius: 2px;
}

/* --- About Section --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}
.about-image {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.about-image img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.about-text h3 {
  font-size: 1.35rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
}
.about-text p {
  margin-bottom: 1rem;
  color: var(--color-text-light);
}
.about-text p:last-child { margin-bottom: 0; }

/* --- Services Grid --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}
.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: box-shadow var(--transition), transform var(--transition);
}
.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.service-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 1rem;
  color: var(--color-primary);
}
.service-icon svg {
  width: 100%;
  height: 100%;
}
.service-card h3 {
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}
.service-card p {
  font-size: 0.92rem;
  color: var(--color-text-light);
  line-height: 1.55;
}

/* --- Why Choose Us --- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 2rem;
}
.why-item {
  text-align: center;
  padding: 1.5rem;
}
.why-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1rem;
  background: rgba(255,255,255,0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}
.why-icon svg {
  width: 28px;
  height: 28px;
}
.why-item h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}
.why-item p {
  font-size: 0.92rem;
  opacity: 0.85;
  line-height: 1.55;
}

/* --- Gallery Preview --- */
.gallery-preview-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}
.gallery-preview-grid a {
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}
.gallery-preview-grid a:hover,
.gallery-preview-grid a:focus-visible {
  box-shadow: var(--shadow-md);
  transform: scale(1.02);
}
.gallery-preview-grid img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

/* --- Gallery Page Grid --- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}
.gallery-item {
  width: 100%;
  padding: 0;
  background: var(--color-white);
  border: 0;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}
.gallery-item:hover,
.gallery-item:focus-visible {
  box-shadow: var(--shadow-md);
  transform: scale(1.02);
}
.gallery-item img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.gallery-item:hover img,
.gallery-item:focus-visible img {
  transform: scale(1.05);
}

/* --- Lightbox --- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 500;
  background: rgba(0,0,0,0.92);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.lightbox.active {
  display: flex;
}
.lightbox-img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}
.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  background: rgba(255,255,255,0.15);
  color: var(--color-white);
  border: none;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  transition: background var(--transition);
  z-index: 510;
}
.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover,
.lightbox-close:focus-visible,
.lightbox-prev:focus-visible,
.lightbox-next:focus-visible {
  background: rgba(255,255,255,0.3);
}
.lightbox-close { top: 1.5rem; right: 1.5rem; }
.lightbox-prev { left: 1.5rem; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 1.5rem; top: 50%; transform: translateY(-50%); }
.lightbox-counter {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
}

/* --- Contact Section --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}
.contact-info h3 {
  font-size: 1.35rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
}
.contact-info p {
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
}
.contact-detail {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-size: 1.05rem;
}
.contact-detail svg {
  width: 22px;
  height: 22px;
  color: var(--color-primary);
  flex-shrink: 0;
}
.contact-detail a {
  color: var(--color-primary);
  font-weight: 600;
  transition: color var(--transition);
}
.contact-detail a:hover { color: var(--color-accent); }

/* --- Contact Form --- */
.contact-form {
  background: var(--color-white);
  padding: 2.5rem 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}
.form-group {
  margin-bottom: 1.25rem;
}
.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: 0.35rem;
  color: var(--color-text);
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(25,47,29,0.12);
}
.form-group textarea {
  min-height: 130px;
  resize: vertical;
}
.form-submit {
  width: 100%;
  padding: 0.85rem;
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: background var(--transition);
}
.form-submit:hover,
.form-submit:focus-visible {
  background: var(--color-primary-light);
}

/* --- CTA Banner --- */
.cta-banner {
  text-align: center;
  padding: 4rem 1.5rem;
  background: var(--color-primary);
  color: var(--color-white);
}
.cta-banner h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  margin-bottom: 1rem;
}
.cta-banner p {
  opacity: 0.85;
  margin-bottom: 2rem;
  font-size: 1.05rem;
}

/* --- Footer --- */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.75);
  padding: 2.5rem 1.5rem 1.5rem;
  font-size: 0.9rem;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 1.5rem;
}
.footer-brand {
  max-width: 320px;
}
.footer-brand .site-logo {
  margin-bottom: 0.75rem;
  font-size: 1.1rem;
}
.footer-brand p {
  font-size: 0.85rem;
  line-height: 1.6;
}
.footer-links h4,
.footer-contact h4 {
  color: var(--color-white);
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}
.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.footer-links a {
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--color-accent); }
.footer-contact p {
  margin-bottom: 0.3rem;
}
.footer-insurance {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius);
  border-left: 3px solid var(--color-accent);
  font-size: 0.85rem;
}
.footer-insurance strong {
  color: var(--color-accent);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.82rem;
  opacity: 0.7;
}
.footer-bottom a {
  color: var(--color-accent);
  transition: opacity var(--transition);
}
.footer-bottom a:hover { opacity: 0.8; }

/* --- Focus Visible --- */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}
button:focus:not(:focus-visible),
a:focus:not(:focus-visible) {
  outline: none;
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* --- Tablet (>=640px) --- */
@media (min-width: 640px) {
  .about-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr 1fr; }
  .gallery-preview-grid { grid-template-columns: repeat(4, 1fr); }
}

/* --- Desktop (>=900px) --- */
@media (min-width: 900px) {
  .section { padding: 5.5rem 2rem; }
  .hero { min-height: 580px; }
}

/* --- Mobile Nav (<=768px) --- */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: var(--color-primary);
    padding: 5rem 2rem 2rem;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    box-shadow: var(--shadow-lg);
    z-index: 105;
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav ul {
    flex-direction: column;
    gap: 1.25rem;
  }
  .main-nav a {
    font-size: 1.1rem;
  }
  .nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }
  .nav-overlay.active {
    opacity: 1;
    pointer-events: auto;
  }
}

/* --- Gallery page header --- */
.page-header {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 3rem 1.5rem;
  text-align: center;
}
.page-header h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
}
.page-header p {
  opacity: 0.85;
  max-width: 520px;
  margin: 0 auto;
}