/* ==========================================================================
   Sietel Investments Ltd — Brand Stylesheet
   Deep Forest Green #0B5D3B | Gold #D4A017 | White #FFFFFF
   ========================================================================== */

:root {
  --sietel-green: #0B5D3B;
  --sietel-green-dark: #073d27;
  --sietel-green-light: #12804fdd;
  --sietel-gold: #D4A017;
  --sietel-gold-light: #f0c75e;
  --sietel-white: #FFFFFF;
  --sietel-beige: #FAF7F0;
  --sietel-gray: #6b7280;
  --sietel-gray-light: #f2f4f3;
  --sietel-charcoal: #1b1f1d;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --transition-base: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-soft: 0 10px 40px rgba(11, 93, 59, 0.08);
  --shadow-medium: 0 15px 50px rgba(11, 93, 59, 0.14);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--sietel-charcoal);
  background-color: var(--sietel-white);
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, .font-display {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
}

a { text-decoration: none; transition: var(--transition-base); }

.text-gold { color: var(--sietel-gold) !important; }
.text-green { color: var(--sietel-green) !important; }
.bg-green { background-color: var(--sietel-green) !important; }
.bg-gold { background-color: var(--sietel-gold) !important; }
.bg-beige { background-color: var(--sietel-beige) !important; }
.bg-charcoal { background-color: var(--sietel-charcoal) !important; }

.section-padding { padding: 6rem 0; }
@media (max-width: 768px) {
  .section-padding { padding: 3.5rem 0; }
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--sietel-gold);
  margin-bottom: 0.75rem;
  position: relative;
  padding-left: 2.2rem;
}
.section-label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 1.6rem;
  height: 2px;
  background: var(--sietel-gold);
  transform: translateY(-50%);
}

.section-title {
  font-size: clamp(1.9rem, 3.2vw, 2.75rem);
  color: var(--sietel-green);
  margin-bottom: 1rem;
}

.section-subtitle {
  color: var(--sietel-gray);
  max-width: 620px;
  font-size: 1.05rem;
}

/* Buttons */
.btn-sietel-primary {
  background-color: var(--sietel-gold);
  border: 2px solid var(--sietel-gold);
  color: var(--sietel-charcoal);
  font-weight: 600;
  padding: 0.85rem 2.1rem;
  border-radius: 2px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 0.85rem;
  transition: var(--transition-base);
}
.btn-sietel-primary:hover {
  background-color: transparent;
  color: var(--sietel-white);
  border-color: var(--sietel-white);
  transform: translateY(-2px);
}

.btn-sietel-outline {
  background-color: transparent;
  border: 2px solid rgba(255,255,255,0.6);
  color: var(--sietel-white);
  font-weight: 600;
  padding: 0.85rem 2.1rem;
  border-radius: 2px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 0.85rem;
  transition: var(--transition-base);
}
.btn-sietel-outline:hover {
  background-color: var(--sietel-white);
  color: var(--sietel-green);
  border-color: var(--sietel-white);
}

.btn-sietel-dark {
  background-color: var(--sietel-green);
  border: 2px solid var(--sietel-green);
  color: var(--sietel-white);
  font-weight: 600;
  padding: 0.85rem 2.1rem;
  border-radius: 2px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 0.85rem;
  transition: var(--transition-base);
}
.btn-sietel-dark:hover {
  background-color: var(--sietel-green-dark);
  color: var(--sietel-white);
  transform: translateY(-2px);
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.sietel-navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1050;
  padding: 1.4rem 0;
  background: transparent;
  transition: var(--transition-base);
}
.sietel-navbar.scrolled {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 25px rgba(0,0,0,0.06);
  padding: 0.75rem 0;
}
.sietel-navbar .brand-logo {
  height: 54px;
  width: auto;
  object-fit: contain;
  transition: var(--transition-base);
}
.sietel-navbar.scrolled .brand-logo { height: 44px; }
.footer-logo {
  max-width: 220px;
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}
.sietel-navbar .navbar-brand-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--sietel-white);
  transition: var(--transition-base);
}
.sietel-navbar.scrolled .navbar-brand-text { color: var(--sietel-green); }

.sietel-navbar .nav-link {
  color: var(--sietel-white);
  font-weight: 500;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  margin: 0 0.6rem;
  position: relative;
  padding: 0.4rem 0 !important;
}
.sietel-navbar.scrolled .nav-link { color: var(--sietel-charcoal); }
.sietel-navbar .nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--sietel-gold);
  transition: var(--transition-base);
}
.sietel-navbar .nav-link:hover::after,
.sietel-navbar .nav-link.active::after { width: 100%; }
.sietel-navbar .nav-link:hover { color: var(--sietel-gold); }

.sietel-navbar.scrolled .navbar-toggler,
.sietel-navbar .navbar-toggler { border: none; }
.sietel-navbar .navbar-toggler .bi { font-size: 1.5rem; color: var(--sietel-white); }
.sietel-navbar.scrolled .navbar-toggler .bi { color: var(--sietel-green); }

@media (max-width: 991.98px) {
  .sietel-navbar .navbar-collapse {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--sietel-green) 0%, var(--sietel-green-dark) 100%);
    box-shadow: 0 12px 30px rgba(0,0,0,0.16);
    justify-content: flex-end;
  }

  .sietel-navbar .navbar-collapse .navbar-nav {
    align-items: flex-start;
    width: 100%;
  }

  .sietel-navbar .navbar-collapse .nav-item {
    width: 100%;
    margin: 0.15rem 0;
  }

  .sietel-navbar .navbar-collapse .nav-link {
    color: var(--sietel-white);
    padding: 0.7rem 0.8rem;
    margin: 0;
    border-radius: 8px;
  }

  .sietel-navbar .navbar-collapse .nav-link:hover,
  .sietel-navbar .navbar-collapse .nav-link.active {
    background: rgba(255,255,255,0.12);
    color: var(--sietel-white);
  }

  .sietel-navbar .navbar-collapse .nav-link::after {
    display: none;
  }

  .sietel-navbar .navbar-collapse .btn-sietel-primary {
    margin-top: 0.4rem;
    width: 100%;
    text-align: center;
  }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero-section {
  position: relative;
  height: 100vh;
  min-height: 640px;
  overflow: hidden;
}
.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1.08);
  transition: opacity 1.4s ease, transform 8s ease;
  z-index: 1;
}
.hero-slide.active { opacity: 1; transform: scale(1); z-index: 2; }
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7,30,20,0.75) 0%, rgba(7,30,20,0.55) 45%, rgba(7,30,20,0.9) 100%);
  z-index: 3;
}
.hero-content {
  position: relative;
  z-index: 4;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: var(--sietel-white);
}
.hero-content h1 {
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.15;
  max-width: 850px;
}
.hero-content p.lead {
  max-width: 620px;
  font-size: 1.15rem;
  color: rgba(255,255,255,0.88);
}
.hero-scroll-indicator {
  position: absolute;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  color: var(--sietel-white);
  opacity: 0.8;
  animation: bounce 2.2s infinite;
}
@keyframes bounce {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 10px); }
}
.hero-dots {
  position: absolute;
  bottom: 2rem; right: 3rem;
  z-index: 4;
  display: flex;
  gap: 0.5rem;
}
.hero-dots button {
  width: 10px; height: 10px;
  border-radius: 50%;
  border: 2px solid var(--sietel-white);
  background: transparent;
  padding: 0;
  cursor: pointer;
  transition: var(--transition-base);
}
.hero-dots button.active { background: var(--sietel-gold); border-color: var(--sietel-gold); }

/* ==========================================================================
   Reveal animations (vanilla JS + IntersectionObserver)
   ========================================================================== */
.reveal { opacity: 0; transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.2,0.8,0.2,1); }
.reveal-fade { transform: translateY(0); }
.reveal-up { transform: translateY(40px); }
.reveal-left { transform: translateX(-50px); }
.reveal-right { transform: translateX(50px); }
.reveal-zoom { transform: scale(0.9); }
.reveal.in-view { opacity: 1; transform: translate(0,0) scale(1); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ==========================================================================
   Cards
   ========================================================================== */
.sietel-card {
  background: var(--sietel-white);
  border-radius: 10px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(11,93,59,0.06);
  transition: var(--transition-base);
  overflow: hidden;
  height: 100%;
}
.sietel-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-medium);
}

.icon-card {
  padding: 2.5rem 2rem;
  text-align: center;
}
.icon-card .icon-wrap {
  width: 72px; height: 72px;
  margin: 0 auto 1.5rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sietel-green), var(--sietel-green-dark));
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition-base);
}
.icon-card .icon-wrap i { font-size: 1.8rem; color: var(--sietel-gold); }
.icon-card:hover .icon-wrap { transform: rotate(-8deg) scale(1.08); }
.icon-card h4 { font-size: 1.2rem; color: var(--sietel-green); margin-bottom: 0.75rem; }

/* Property / Project cards */
.property-card .card-img-wrap { position: relative; overflow: hidden; height: 240px; }
.property-card .card-img-wrap img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s ease;
}
.property-card:hover .card-img-wrap img { transform: scale(1.1); }
.property-badge {
  position: absolute; top: 1rem; left: 1rem;
  background: var(--sietel-gold);
  color: var(--sietel-charcoal);
  font-size: 0.7rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.05em;
  padding: 0.35rem 0.85rem; border-radius: 2px;
}
.property-price {
  position: absolute; bottom: 1rem; left: 1rem;
  background: rgba(7,30,20,0.85);
  color: var(--sietel-white);
  font-weight: 700; font-size: 1.05rem;
  padding: 0.4rem 1rem; border-radius: 4px;
}
.property-card .card-body { padding: 1.5rem; }
.property-card .location { color: var(--sietel-gray); font-size: 0.9rem; }

/* Progress bars */
.progress-sietel {
  height: 8px; border-radius: 10px; background: var(--sietel-gray-light); overflow: hidden;
}
.progress-sietel .progress-bar-fill {
  height: 100%; background: linear-gradient(90deg, var(--sietel-green), var(--sietel-gold));
  width: 0%; border-radius: 10px; transition: width 1.6s cubic-bezier(0.2,0.8,0.2,1);
}

/* Statistics */
.stat-item { text-align: center; }
.stat-number {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 700;
  color: var(--sietel-gold);
  line-height: 1;
}
.stat-label { color: rgba(255,255,255,0.85); font-size: 0.95rem; margin-top: 0.5rem; letter-spacing: 0.02em; }

/* Testimonials */
.testimonial-card {
  background: var(--sietel-beige);
  border-radius: 12px;
  padding: 2.5rem;
  position: relative;
}
.testimonial-card .bi-quote { font-size: 2.5rem; color: var(--sietel-gold); opacity: 0.5; }
.testimonial-card .stars i { color: var(--sietel-gold); font-size: 0.9rem; }

/* CTA */
.cta-section {
  background: linear-gradient(120deg, var(--sietel-green-dark), var(--sietel-green));
  color: var(--sietel-white);
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(212,160,23,0.18), transparent 55%);
}

/* Blog cards */
.blog-card img { height: 220px; width: 100%; object-fit: cover; }
.blog-card .meta { color: var(--sietel-gray); font-size: 0.82rem; }
.blog-card .category-tag {
  display: inline-block; background: var(--sietel-green); color: var(--sietel-white);
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.04em;
  padding: 0.3rem 0.75rem; border-radius: 2px; margin-bottom: 0.75rem;
}

/* Footer */
.sietel-footer { background: var(--sietel-charcoal); color: rgba(255,255,255,0.75); }
.sietel-footer h5 { color: var(--sietel-white); font-size: 1.05rem; margin-bottom: 1.25rem; }
.sietel-footer a { color: rgba(255,255,255,0.7); }
.sietel-footer a:hover { color: var(--sietel-gold); }
.sietel-footer .social-icons a {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2);
  display: inline-flex; align-items: center; justify-content: center;
  margin-right: 0.5rem;
}
.sietel-footer .social-icons a:hover { background: var(--sietel-gold); border-color: var(--sietel-gold); color: var(--sietel-charcoal); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); font-size: 0.85rem; }

/* Scroll to top */
#scrollTopBtn {
  position: fixed; bottom: 2rem; right: 2rem; z-index: 1040;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--sietel-green); color: var(--sietel-white);
  display: flex; align-items: center; justify-content: center;
  border: none; opacity: 0; visibility: hidden;
  transform: translateY(15px);
  transition: var(--transition-base);
  box-shadow: var(--shadow-medium);
}
#scrollTopBtn.show { opacity: 1; visibility: visible; transform: translateY(0); }
#scrollTopBtn:hover { background: var(--sietel-gold); color: var(--sietel-charcoal); }

/* Page loader */
#pageLoader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--sietel-green);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
#pageLoader.loaded { opacity: 0; visibility: hidden; }
#pageLoader .loader-ring {
  width: 56px; height: 56px;
  border: 3px solid rgba(255,255,255,0.25);
  border-top-color: var(--sietel-gold);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Page header banner (interior pages) */
.page-header {
  background: linear-gradient(rgba(7,30,20,0.82), rgba(7,30,20,0.82)), var(--hero-bg, linear-gradient(120deg, var(--sietel-green-dark), var(--sietel-green)));
  background-size: cover;
  background-position: center;
  padding: 9rem 0 4.5rem;
  color: var(--sietel-white);
}
.page-header .breadcrumb-item, .page-header .breadcrumb-item a { color: rgba(255,255,255,0.7); }
.page-header .breadcrumb-item.active { color: var(--sietel-gold); }

/* Partner logos */
.partner-logo-track { display: flex; align-items: center; gap: 4rem; overflow: hidden; }
.partner-logo-track img { height: 48px; filter: grayscale(100%); opacity: 0.6; transition: var(--transition-base); }
.partner-logo-track img:hover { filter: grayscale(0%); opacity: 1; }

/* Filters */
.filter-pill {
  border: 1px solid var(--sietel-green);
  color: var(--sietel-green);
  background: transparent;
  padding: 0.5rem 1.3rem;
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition-base);
}
.filter-pill.active, .filter-pill:hover { background: var(--sietel-green); color: var(--sietel-white); }

/* Timeline (about page) */
.timeline { position: relative; padding-left: 2rem; border-left: 2px solid rgba(11,93,59,0.15); }
.timeline-item { position: relative; padding-bottom: 2.5rem; }
.timeline-item::before {
  content: '';
  position: absolute; left: -2.45rem; top: 0.2rem;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--sietel-gold);
  border: 3px solid var(--sietel-white);
  box-shadow: 0 0 0 2px var(--sietel-green);
}
.timeline-item .year { color: var(--sietel-gold); font-weight: 700; font-family: var(--font-display); font-size: 1.3rem; }

/* Team */
.team-card img { height: 300px; object-fit: cover; width: 100%; }
.team-card .overlay-social {
  position: absolute; inset: auto 0 0 0;
  background: rgba(11,93,59,0.92);
  padding: 0.75rem; display: flex; justify-content: center; gap: 0.75rem;
  transform: translateY(100%); transition: var(--transition-base);
}
.team-card:hover .overlay-social { transform: translateY(0); }
.team-card .img-wrap { position: relative; overflow: hidden; border-radius: 10px; }

/* Utility */
.divider-gold { width: 60px; height: 3px; background: var(--sietel-gold); margin: 1rem 0 1.5rem; }
.rounded-xl { border-radius: 14px; }