@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --primary: #4CAF50; /* BuildPro Green */
  --primary-dark: #2E7D32; /* Darker Green */
  --secondary: #81C784; /* Lighter Green accent */
  --text-dark: #1E293B;
  --text-light: #64748B;
  --bg-main: #FFFFFF;
  --bg-alt: #F8FAFC;
  --border: #E2E8F0;
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 25px -5px rgba(76, 175, 80, 0.15); /* Slight green tint in shadow */
  --transition: all 0.3s ease;
  --radius: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  color: var(--text-dark);
  background: var(--bg-main);
  line-height: 1.6;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
h1, h2, h3, h4 { line-height: 1.2; letter-spacing: -0.02em; font-weight: 700; }
a { text-decoration: none; color: inherit; }

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 24px; border-radius: 8px; font-weight: 600;
  transition: var(--transition); cursor: pointer; border: none; font-size: 1rem;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: white; }
.btn-lg { padding: 14px 32px; font-size: 1.1rem; }
.btn-block { width: 100%; }

/* NAVBAR */
.navbar {
  position: fixed; top: 0; width: 100%; z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow-sm); }
.nav-inner { display: flex; justify-content: space-between; align-items: center; height: 80px; }
.logo { font-size: 1.5rem; font-weight: 800; display: flex; align-items: center; gap: 8px; color: var(--primary); }
.nav-links { display: flex; gap: 20px; list-style: none; }
.nav-links a { font-weight: 500; color: var(--text-light); transition: var(--transition); position: relative; }
.nav-links a:hover { color: var(--primary); }
.nav-links a.active { color: var(--primary); font-weight: 600; }
@media (min-width: 769px) {
  .nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
  }
}
.hamburger { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; }
.hamburger span { width: 25px; height: 2px; background: var(--text-dark); transition: var(--transition); }

/* HERO */
.hero { padding: 140px 0 80px; background: linear-gradient(135deg, #F8FAFC 0%, #F0FDF4 100%); }
.hero-container { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.badge { display: inline-block; padding: 6px 14px; background: #DCFCE7; color: var(--primary-dark); border-radius: 50px; font-size: 0.85rem; font-weight: 600; margin-bottom: 24px; }
.hero h1 { font-size: 3.5rem; margin-bottom: 24px; color: #111827; }
.hero p { font-size: 1.15rem; color: var(--text-light); margin-bottom: 40px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-image { position: relative; }
.rounded-image { width: 100%; border-radius: 24px; object-fit: cover; }
.shadow-lg { box-shadow: var(--shadow-lg); }
.floating-card { position: absolute; background: white; padding: 16px; border-radius: 16px; display: flex; gap: 12px; align-items: center; box-shadow: var(--shadow-lg); }
.floating-card .icon { font-size: 2rem; }
.floating-card h4 { font-size: 0.95rem; margin-bottom: 2px; }
.floating-card p { font-size: 0.8rem; color: var(--text-light); margin: 0; }
.expert-card { top: 40px; left: -40px; animation: float 6s ease-in-out infinite; }
.vastu-card { bottom: 40px; right: -40px; animation: float 6s ease-in-out infinite reverse; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-15px); } }

/* COMMONS */
.section { padding: 100px 0; }
.bg-light { background: var(--bg-alt); }
.page-section { display: none; }
.page-section.active { display: block; animation: fadeInUp 0.5s ease-out forwards; }
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}
.section-header { margin-bottom: 60px; max-width: 600px; }
.section-header.center { margin: 0 auto 60px; text-align: center; }
.subtitle { display: block; color: var(--primary); font-weight: 700; font-size: 0.9rem; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; }
.section-header h2 { font-size: 2.5rem; margin-bottom: 16px; }
.section-header p { font-size: 1.1rem; color: var(--text-light); }

/* SERVICES GRID */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; }
.service-card { background: white; padding: 40px 32px; border-radius: var(--radius); border: 1px solid var(--border); transition: var(--transition); }
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.service-icon { font-size: 2.5rem; margin-bottom: 24px; display: inline-block; padding: 16px; background: #F0FDF4; border-radius: 16px; }
.service-card h3 { font-size: 1.3rem; margin-bottom: 12px; }
.service-card p { color: var(--text-light); font-size: 0.95rem; }

/* PROCESS TIMELINE */
.process-timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.process-step { position: relative; }
.step-number { width: 48px; height: 48px; background: var(--primary); color: white; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; font-weight: 700; margin-bottom: 24px; z-index: 2; position: relative; box-shadow: 0 0 0 8px rgba(76, 175, 80, 0.1); }
.process-step::after { content: ''; position: absolute; top: 24px; left: 48px; right: -24px; height: 2px; background: var(--border); z-index: 1; }
.process-step:last-child::after { display: none; }
.step-content h3 { font-size: 1.1rem; margin-bottom: 12px; }
.step-content p { font-size: 0.95rem; color: var(--text-light); }

/* FAQ ACCORDION */
.faq-container { max-width: 800px; margin: 0 auto; }
.faq-item { background: white; border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 16px; overflow: hidden; }
.faq-question { width: 100%; text-align: left; padding: 24px; background: none; border: none; font-size: 1.1rem; font-weight: 600; color: var(--text-dark); cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-family: inherit; }
.toggle-icon { color: var(--primary); font-size: 1.5rem; transition: transform 0.3s ease; }
.faq-item.active .toggle-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; background: #FAFAFA; }
.answer-content { padding: 0 24px 24px; color: var(--text-light); font-size: 0.95rem; }

/* REVIEWS */
.reviews-container { display: grid; grid-template-columns: 1.5fr 1fr; gap: 40px; }
.reviews-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; align-items: start; }
.review-card { background: white; padding: 24px; border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow-sm); }
.stars { color: #F59E0B; font-size: 1.25rem; margin-bottom: 12px; letter-spacing: 2px; }
.review-text { font-style: italic; color: var(--text-dark); margin-bottom: 24px; font-size: 1.05rem; }
.reviewer { display: flex; align-items: center; gap: 16px; }
.avatar { width: 48px; height: 48px; background: var(--primary); color: white; display: flex; align-items: center; justify-content: center; border-radius: 50%; font-weight: 700; font-size: 1.2rem; }
.reviewer strong { display: block; font-size: 1rem; }
.reviewer span { font-size: 0.85rem; color: var(--text-light); }

.review-form-card { background: var(--bg-alt); padding: 40px; border-radius: 24px; border: 1px solid var(--border); }
.review-form-card h3 { margin-bottom: 8px; font-size: 1.5rem; }
.star-rating-select { font-size: 2rem; color: #D1D5DB; margin-bottom: 24px; cursor: pointer; display: flex; gap: 8px; }
.star-select { transition: color 0.2s; }
.star-select.active, .star-select:hover, .star-select:hover ~ .star-select { color: #F59E0B; }
.star-rating-select:hover .star-select { color: #F59E0B; }
.star-rating-select:hover .star-select:hover ~ .star-select { color: #D1D5DB; }

/* CONTACT */
.contact-container { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-info h2 { font-size: 2.5rem; margin-bottom: 16px; }
.contact-info p { color: var(--text-light); margin-bottom: 40px; font-size: 1.1rem; }
.contact-methods { display: flex; flex-direction: column; gap: 24px; }
.method { display: flex; gap: 16px; align-items: flex-start; }
.method .icon { font-size: 1.5rem; padding: 12px; background: #F0FDF4; border-radius: 12px; }
.method strong { display: block; font-size: 1.1rem; margin-bottom: 4px; }
.method p { color: var(--text-light); margin: 0; font-size: 0.95rem; }

.contact-form-card { background: white; padding: 40px; border-radius: 24px; box-shadow: var(--shadow-lg); border: 1px solid var(--border); }
.contact-form-card h3 { margin-bottom: 24px; font-size: 1.5rem; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 500; margin-bottom: 8px; font-size: 0.9rem; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px 16px; border: 1px solid var(--border); border-radius: 8px; font-family: inherit; font-size: 0.95rem; transition: var(--transition); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1); }

/* FOOTER */
.footer { background: #111827; color: white; padding-top: 80px; }
.footer-content { display: flex; justify-content: space-between; align-items: center; margin-bottom: 40px; flex-wrap: wrap; gap: 32px; }
.footer-brand .logo { color: white; margin-bottom: 12px; display: inline-flex; }
.footer-brand p { color: #9CA3AF; max-width: 300px; font-size: 0.95rem; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: #D1D5DB; font-weight: 500; transition: var(--transition); }
.footer-links a:hover { color: white; }
.footer-bottom { border-top: 1px solid #374151; padding: 24px 0; display: flex; justify-content: space-between; align-items: center; color: #9CA3AF; font-size: 0.85rem; }
.footer-bottom .credit { color: #6B7280; }

/* ABOUT US */
.about-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 60px; align-items: center; }
.about-image { position: relative; }
.about-image img { width: 100%; height: 480px; object-fit: cover; border-radius: 24px; }
.experience-badge {
  position: absolute; bottom: 30px; right: -20px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white; padding: 24px; border-radius: 20px;
  box-shadow: var(--shadow-lg); text-align: center;
  min-width: 160px; animation: float 6s ease-in-out infinite;
}
.experience-badge .num { display: block; font-size: 2.25rem; font-weight: 800; line-height: 1; margin-bottom: 4px; }
.experience-badge .lbl { display: block; font-size: 0.85rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; opacity: 0.9; }
.about-content h2 { font-size: 2.5rem; margin-bottom: 24px; color: #111827; }
.about-content p { font-size: 1.1rem; color: var(--text-light); margin-bottom: 20px; }
.stats-row { display: flex; gap: 20px; margin-top: 32px; }
.stat-card { flex: 1; background: var(--bg-alt); border: 1px solid var(--border); padding: 20px; border-radius: var(--radius); text-align: center; transition: var(--transition); }
.stat-card:hover { border-color: var(--primary); transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.stat-card h3 { font-size: 2rem; color: var(--primary); margin-bottom: 6px; font-weight: 800; }
.stat-card p { font-size: 0.9rem; color: var(--text-dark); font-weight: 600; margin: 0; }

/* ABOUT US BACKGROUND ANIMATION & EXTENSION */
#about {
  position: relative;
}
.about-bg-animations {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}
.anim-circle {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.06;
  mix-blend-mode: multiply;
}
.circle-1 {
  width: 400px;
  height: 400px;
  background: var(--primary);
  top: -100px;
  left: -100px;
  animation: floatCircle1 20s infinite alternate ease-in-out;
}
.circle-2 {
  width: 500px;
  height: 500px;
  background: var(--primary-dark);
  bottom: -100px;
  right: -100px;
  animation: floatCircle2 25s infinite alternate ease-in-out;
}
.anim-grid-dots {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(var(--border) 1.5px, transparent 1.5px);
  background-size: 30px 30px;
  opacity: 0.12;
}
@keyframes floatCircle1 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(150px, 100px) scale(1.2); }
}
@keyframes floatCircle2 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-100px, -150px) scale(1.15); }
}

/* Vision & Mission */
.about-vision-mission {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 80px;
  position: relative;
  z-index: 1;
}
.vision-card, .mission-card {
  background: white;
  padding: 40px;
  border-radius: 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.vision-card:hover, .mission-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}
.vision-card .icon, .mission-card .icon {
  font-size: 2.5rem;
  margin-bottom: 20px;
  background: #E8F5E9;
  width: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 18px;
  color: var(--primary);
}
.vision-card h3, .mission-card h3 {
  font-size: 1.5rem;
  margin-bottom: 16px;
  color: #111827;
}
.vision-card p, .mission-card p {
  color: var(--text-light);
  font-size: 1.05rem;
  line-height: 1.6;
  margin: 0;
}

/* Directors */
.about-directors-section {
  margin-top: 100px;
  position: relative;
  z-index: 1;
}
.directors-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 48px;
}
.director-card {
  background: white;
  padding: 30px;
  border-radius: 24px;
  border: 1px solid var(--border);
  display: flex;
  gap: 24px;
  align-items: center;
  transition: var(--transition);
}
.director-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}
.director-img-container {
  width: 130px;
  height: 130px;
  flex-shrink: 0;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid #E8F5E9;
}
.director-img-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.director-card:hover .director-img-container img {
  transform: scale(1.08);
}
.director-info h3 {
  font-size: 1.35rem;
  color: #111827;
  margin-bottom: 6px;
}
.director-info .role {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.director-info p {
  color: var(--text-light);
  font-size: 0.95rem;
  margin: 0;
  line-height: 1.5;
}

/* Staff */
.about-staff-section {
  margin-top: 100px;
  position: relative;
  z-index: 1;
}
.staff-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-top: 48px;
}
.staff-card {
  background: white;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  text-align: center;
}
.staff-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}
.staff-img-container {
  width: 100%;
  height: 260px;
  overflow: hidden;
}
.staff-img-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.staff-card:hover .staff-img-container img {
  transform: scale(1.08);
}
.staff-info {
  padding: 20px;
}
.staff-info h4 {
  font-size: 1.1rem;
  color: #111827;
  margin-bottom: 4px;
  font-weight: 700;
}
.staff-info span {
  font-size: 0.85rem;
  color: var(--text-light);
  font-weight: 600;
}

/* PORTFOLIO */
.portfolio-filters { display: flex; justify-content: center; gap: 12px; margin-bottom: 48px; flex-wrap: wrap; }
.filter-btn {
  background: white; border: 1px solid var(--border);
  padding: 10px 24px; border-radius: 50px; font-weight: 600;
  color: var(--text-light); cursor: pointer; transition: var(--transition); font-family: inherit; font-size: 0.95rem;
}
.filter-btn:hover, .filter-btn.active { background: var(--primary); border-color: var(--primary); color: white; box-shadow: var(--shadow-sm); }
.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.portfolio-item { position: relative; border-radius: var(--radius); overflow: hidden; height: 350px; transition: opacity 0.3s ease, transform 0.3s ease; }
.portfolio-img-container { width: 100%; height: 100%; position: relative; overflow: hidden; }
.portfolio-img-container img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1); }
.portfolio-item:hover .portfolio-img-container img { transform: scale(1.08); }
.portfolio-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(17, 24, 39, 0.9) 0%, rgba(17, 24, 39, 0.3) 70%, rgba(17, 24, 39, 0) 100%);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 30px; opacity: 0; transition: opacity 0.4s ease;
}
.portfolio-item:hover .portfolio-overlay { opacity: 1; }
.project-tag {
  align-self: flex-start; background: var(--primary); color: white;
  font-size: 0.75rem; font-weight: 700; text-transform: uppercase;
  padding: 4px 10px; border-radius: 50px; margin-bottom: 12px; letter-spacing: 0.5px;
}
.portfolio-overlay h3 { color: white; font-size: 1.35rem; margin-bottom: 4px; font-weight: 700; }
.portfolio-overlay p { color: #D1D5DB; font-size: 0.9rem; margin: 0; }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .hero h1 { font-size: 3rem; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-image img { height: 380px; }
  .experience-badge { right: 20px; bottom: -20px; }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .process-timeline { grid-template-columns: 1fr 1fr; gap: 40px; }
  .process-step::after { display: none; }
  .contact-container { grid-template-columns: 1fr; gap: 40px; }
  .floating-card { display: none; }
  
  /* Extended About sections responsive */
  .about-vision-mission { grid-template-columns: 1fr; gap: 30px; }
  .directors-grid { grid-template-columns: 1fr; gap: 30px; }
  .staff-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .hero-container { grid-template-columns: 1fr; text-align: center; }
  .hero-actions { justify-content: center; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .process-timeline { grid-template-columns: 1fr; }
  .footer-content { flex-direction: column; text-align: center; }
  
  /* Mobile stack for director cards */
  .director-card { flex-direction: column; text-align: center; padding: 24px; }
  .director-img-container { margin: 0 auto; }
  .staff-grid { grid-template-columns: 1fr; }
}