/* ═══════════════════════════════════════════
   BILLAS PROPERTIES – Master Stylesheet
   Cross-browser: Chrome, Safari, Firefox, Edge
   Responsive: Mobile, iPad, Desktop
═══════════════════════════════════════════ */
:root {
  --blue:      #1e5fc4;
  --blue-dk:   #1a3a6b;
  --navy:      #0d1f3c;
  --blue-lt:   #2d7ae0;
  --blue-pale: #e8f0fb;
  --gold:      #c8a96e;
  --text:      #3a4a5c;
  --muted:     #7a8fa6;
  --border:    #d8e4f0;
  --white:     #ffffff;
  --bg:        #f4f7fc;
  --shadow:    0 4px 24px rgba(30,95,196,.12);
  --r:         12px;
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: 'DM Sans', Arial, sans-serif; color: var(--text); background: var(--white); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; -webkit-transition: .2s; transition: .2s; }
img { max-width: 100%; display: block; height: auto; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; }

/* ── HEADER ── */
header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: 70px;
  background: rgba(255,255,255,.97);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: -webkit-flex; display: flex;
  -webkit-align-items: center; align-items: center;
  padding: 0 5%; gap: 28px;
  overflow: visible;
}
.nav-logo {
  display: -webkit-flex; display: flex;
  -webkit-align-items: center; align-items: center;
  gap: 11px;
  -webkit-flex-shrink: 0; flex-shrink: 0;
  position: relative; z-index: 1100;
}
.nav-logo .logo-icon {
  height: 54px;
  width: auto;
  display: block;
  -webkit-flex-shrink: 0; flex-shrink: 0;
  /* removes dark background on light navbar */
  mix-blend-mode: multiply;
  -webkit-mix-blend-mode: multiply;
}
.brand-name {
  display: -webkit-flex; display: flex;
  -webkit-flex-direction: column; flex-direction: column;
  line-height: 1.2;
}
.brand-main {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: 2px;
}
.brand-sub {
  font-size: .58rem;
  color: var(--muted);
  letter-spacing: 1.8px;
  font-weight: 500;
  text-transform: uppercase;
}
.nav-links {
  display: -webkit-flex; display: flex;
  gap: 28px; -webkit-align-items: center; align-items: center;
  -webkit-flex: 1; flex: 1;
}
.nav-links a { font-weight: 500; font-size: .93rem; color: var(--navy); }
.nav-links a:hover { color: var(--blue); }
.nav-btn {
  background: var(--blue); color: #fff;
  padding: 9px 22px; border-radius: 7px;
  font-weight: 600; font-size: .88rem;
  white-space: nowrap; -webkit-flex-shrink: 0; flex-shrink: 0;
  display: inline-block;
}
.nav-btn:hover { background: var(--blue-lt); color: #fff; }
.hamburger {
  display: none; background: none; border: none;
  -webkit-flex-direction: column; flex-direction: column;
  gap: 5px; padding: 4px; z-index: 1100;
  -webkit-flex-shrink: 0; flex-shrink: 0;
}
.hamburger span { display: block; width: 26px; height: 2px; background: var(--blue); border-radius: 2px; -webkit-transition: .3s; transition: .3s; }

/* ── MOBILE OVERLAY ── */
.mob-overlay {
  display: none; position: fixed; inset: 0;
  background: #0a1628; z-index: 2000;
  -webkit-flex-direction: column; flex-direction: column;
  -webkit-align-items: center; align-items: center;
  -webkit-justify-content: center; justify-content: center;
  gap: 32px;
}
.mob-overlay.open { display: -webkit-flex; display: flex; }
.mob-overlay a { color: #fff; font-size: 1.7rem; font-family: Georgia, serif; }
.mob-close {
  position: absolute; top: 20px; right: 24px;
  background: none; border: none; color: #fff; font-size: 2rem;
}
.mob-cta {
  background: #fff !important; color: var(--blue) !important;
  padding: 14px 44px; border-radius: 50px;
  font-weight: 700; font-size: 1rem; margin-top: 8px;
}

/* ── HERO ── */
.hero {
  min-height: 100vh;
  /* NOTE: CSS url() is relative to CSS file (css/style.css), so use ../images/ */
  background: linear-gradient(135deg, rgba(5,14,31,.88) 0%, rgba(13,33,71,.80) 55%, rgba(30,95,196,.65) 100%),
              url('../images/site-photo-4.jpg') center/cover no-repeat;
  display: -webkit-flex; display: flex;
  -webkit-align-items: center; align-items: center;
  padding: 140px 5% 80px;
  position: relative;
}
.hero-inner { max-width: 680px; position: relative; z-index: 1; }
.hero-tag {
  display: inline-block; background: var(--blue); color: #fff;
  font-size: .72rem; font-weight: 700; letter-spacing: 1px; text-transform: uppercase;
  padding: 5px 14px; border-radius: 20px; margin-bottom: 18px;
}
.hero h1 {
  font-family: Georgia, 'Playfair Display', serif;
  font-size: 3.4rem; color: #fff; line-height: 1.2; margin-bottom: 16px;
}
.hero p { color: rgba(255,255,255,.8); font-size: 1.1rem; margin-bottom: 36px; max-width: 520px; }
.hero-btns { display: -webkit-flex; display: flex; gap: 14px; -webkit-flex-wrap: wrap; flex-wrap: wrap; }
.btn-white { background: #fff; color: var(--navy); padding: 14px 28px; border-radius: 8px; font-weight: 700; font-size: .95rem; display: inline-block; }
.btn-ghost { border: 2px solid rgba(255,255,255,.5); color: #fff; padding: 12px 26px; border-radius: 8px; font-weight: 600; font-size: .95rem; display: inline-block; }
.btn-ghost:hover { background: rgba(255,255,255,.12); }

/* ── STATS ── */
.stats { border-bottom: 1px solid var(--border); background: #fff; }
.stats-row {
  max-width: 1200px; margin: 0 auto; padding: 36px 5%;
  display: -webkit-flex; display: flex; -webkit-flex-wrap: wrap; flex-wrap: wrap;
}
.stat { -webkit-flex: 1; flex: 1; min-width: 120px; text-align: center; padding: 16px; border-right: 1px solid var(--border); }
.stat:last-child { border-right: none; }
.stat-n { font-family: Georgia, serif; font-size: 2rem; color: var(--blue); font-weight: 700; }
.stat-l { font-size: .8rem; color: var(--muted); margin-top: 4px; }

/* ── BANNER ── */
.banner { background: linear-gradient(135deg, #050e1f, #0d2147 60%, var(--blue)); }
.banner-inner {
  max-width: 1200px; margin: 0 auto; padding: 64px 5%;
  display: -webkit-flex; display: flex; gap: 50px;
  -webkit-align-items: center; align-items: center; -webkit-flex-wrap: wrap; flex-wrap: wrap;
}
.banner-text { -webkit-flex: 1; flex: 1; min-width: 280px; }
.tag-orange {
  display: inline-block; background: #f59e0b; color: #fff;
  font-size: .72rem; font-weight: 700; letter-spacing: 1px; text-transform: uppercase;
  padding: 5px 14px; border-radius: 20px; margin-bottom: 14px;
}
.banner-text h2 {
  font-family: Georgia, serif; font-size: 2rem; color: #fff;
  line-height: 1.3; margin-bottom: 14px;
}
.banner-text p { color: rgba(255,255,255,.75); font-size: .92rem; line-height: 1.9; margin-bottom: 24px; }
.banner-text strong { color: #f59e0b; }
.banner-btns { display: -webkit-flex; display: flex; gap: 14px; -webkit-flex-wrap: wrap; flex-wrap: wrap; }
.btn-solid-w { background: #fff; color: var(--navy); padding: 13px 28px; border-radius: 8px; font-weight: 700; font-size: .9rem; display: inline-block; }
.btn-ghost-w { border: 2px solid rgba(255,255,255,.45); color: #fff; padding: 11px 26px; border-radius: 8px; font-weight: 600; font-size: .9rem; display: inline-block; }
.banner-img { -webkit-flex: 1; flex: 1; min-width: 280px; border-radius: 16px; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,.4); }
.banner-img img { width: 100%; height: 320px; -o-object-fit: cover; object-fit: cover; display: block; }

/* ── SECTIONS ── */
.sec { padding: 80px 5%; max-width: 1200px; margin: 0 auto; }
.sec-bg { background: var(--bg); }
.sec-label { font-size: .72rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--blue); display: block; margin-bottom: 8px; }
.sec-title { font-family: Georgia, serif; font-size: 2.1rem; color: var(--navy); margin-bottom: 12px; }
.sec-sub { color: var(--muted); font-size: .95rem; max-width: 560px; margin-bottom: 36px; }

/* ── PROP GRID ── */
.prop-grid { display: -ms-grid; display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.prop-card {
  border-radius: var(--r); overflow: hidden;
  box-shadow: var(--shadow); background: #fff;
  -webkit-transition: -webkit-transform .3s, box-shadow .3s; transition: transform .3s, box-shadow .3s;
  display: block;
}
.prop-card:hover { -webkit-transform: translateY(-5px); transform: translateY(-5px); box-shadow: 0 16px 48px rgba(30,95,196,.18); }
.prop-card-img { position: relative; height: 230px; overflow: hidden; background: var(--blue-pale); }
.prop-card-img img { width: 100%; height: 100%; -o-object-fit: cover; object-fit: cover; display: block; -webkit-transition: -webkit-transform .4s; transition: transform .4s; }
.prop-card:hover .prop-card-img img { -webkit-transform: scale(1.06); transform: scale(1.06); }
.prop-badge { position: absolute; top: 12px; left: 12px; background: var(--blue); color: #fff; font-size: .7rem; font-weight: 700; padding: 4px 10px; border-radius: 20px; }
.prop-body { padding: 20px; }
.prop-price { font-family: Georgia, serif; font-size: 1.25rem; color: var(--blue); font-weight: 700; margin-bottom: 6px; }
.prop-name { font-size: 1rem; font-weight: 600; color: var(--navy); margin-bottom: 5px; line-height: 1.4; }
.prop-loc { font-size: .82rem; color: var(--muted); }

/* ── BLOG GRID ── */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.blog-card { border-radius: var(--r); overflow: hidden; background: #fff; box-shadow: var(--shadow); -webkit-transition: -webkit-transform .3s; transition: transform .3s; display: block; }
.blog-card:hover { -webkit-transform: translateY(-4px); transform: translateY(-4px); }
.blog-card-img { height: 200px; overflow: hidden; background: var(--blue-pale); }
.blog-card-img img { width: 100%; height: 100%; -o-object-fit: cover; object-fit: cover; display: block; }
.blog-body { padding: 20px; }
.blog-tag { font-size: .7rem; font-weight: 700; color: var(--blue); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; display: block; }
.blog-title { font-size: 1rem; font-weight: 600; color: var(--navy); line-height: 1.4; margin-bottom: 8px; }
.blog-meta { font-size: .8rem; color: var(--muted); }

/* ── FLEX 2COL ── */
.flex-2col { display: -webkit-flex; display: flex; gap: 56px; -webkit-align-items: center; align-items: center; -webkit-flex-wrap: wrap; flex-wrap: wrap; }
.flex-2col > * { -webkit-flex: 1; flex: 1; min-width: 280px; }
.rounded-img { border-radius: 16px; overflow: hidden; box-shadow: var(--shadow); }
.rounded-img img { width: 100%; height: 360px; -o-object-fit: cover; object-fit: cover; display: block; }

/* ── BUTTONS ── */
.btn-blue { background: var(--blue); color: #fff; padding: 12px 28px; border-radius: 8px; font-weight: 600; display: inline-block; }
.btn-blue:hover { background: var(--blue-lt); color: #fff; }
.btn-outline-blue { border: 2px solid var(--blue); color: var(--blue); padding: 10px 26px; border-radius: 8px; font-weight: 600; display: inline-block; }
.btn-outline-blue:hover { background: var(--blue); color: #fff; }

/* ── FORM ── */
.form-card { background: #fff; border-radius: var(--r); padding: 36px; box-shadow: var(--shadow); }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 600; font-size: .88rem; color: var(--navy); }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; padding: 12px 14px;
  border: 1.5px solid var(--border); border-radius: 8px;
  font-family: 'DM Sans', Arial, sans-serif; font-size: .95rem; color: var(--navy);
  outline: none; -webkit-appearance: none; appearance: none;
  -webkit-transition: border .2s; transition: border .2s;
  background: #fff;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(30,95,196,.1); }
.btn-submit {
  width: 100%; padding: 15px; border: none; border-radius: 8px;
  background: var(--blue); color: #fff;
  font-size: 1rem; font-weight: 700;
  font-family: 'DM Sans', Arial, sans-serif;
  -webkit-transition: background .2s; transition: background .2s;
}
.btn-submit:hover { background: var(--blue-lt); }

/* ── FOOTER ── */
footer { background: var(--navy); color: rgba(255,255,255,.6); padding: 64px 5% 28px; }
.footer-grid {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1.3fr; gap: 40px;
}
.footer-logo-wrap {
  display: -webkit-flex; display: flex;
  -webkit-align-items: center; align-items: center;
  gap: 11px; margin-bottom: 20px;
}
.footer-logo-wrap .logo-icon {
  height: 60px; width: auto; display: block;
  -webkit-flex-shrink: 0; flex-shrink: 0;
  /* screen blend: dark background becomes invisible on dark footer */
  mix-blend-mode: screen;
  -webkit-mix-blend-mode: screen;
}
.footer-logo-wrap .brand-main { color: #fff; font-size: 1.15rem; }
.footer-logo-wrap .brand-sub { color: rgba(255,255,255,.55); }
.footer-brand p { font-size: .84rem; line-height: 1.75; margin-top: 4px; }
footer h4 { color: #fff; font-size: .93rem; font-weight: 600; margin-bottom: 18px; }
footer ul { display: -webkit-flex; display: flex; -webkit-flex-direction: column; flex-direction: column; gap: 11px; }
footer ul li a { font-size: .84rem; color: rgba(255,255,255,.5); }
footer ul li a:hover { color: #7eb3ff; }
footer ul li { font-size: .84rem; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  margin-top: 48px; padding-top: 22px;
  display: -webkit-flex; display: flex;
  -webkit-justify-content: space-between; justify-content: space-between;
  -webkit-flex-wrap: wrap; flex-wrap: wrap; gap: 10px;
  font-size: .82rem; max-width: 1200px; margin-left: auto; margin-right: auto;
}

/* ── PROPERTY DETAIL ── */
.detail-layout {
  display: grid; grid-template-columns: 1fr 320px;
  gap: 40px; max-width: 1200px; margin: 90px auto 60px; padding: 0 5%;
}
.gallery-main { border-radius: 16px; overflow: hidden; height: 420px; background: var(--blue-pale); margin-bottom: 14px; }
.gallery-main img { width: 100%; height: 100%; -o-object-fit: cover; object-fit: cover; display: block; }
.gallery-thumbs { display: -webkit-flex; display: flex; gap: 10px; -webkit-flex-wrap: wrap; flex-wrap: wrap; }
.thumb { width: 90px; height: 65px; border-radius: 8px; overflow: hidden; cursor: pointer; border: 2px solid transparent; -webkit-transition: border .2s; transition: border .2s; background: var(--blue-pale); -webkit-flex-shrink: 0; flex-shrink: 0; }
.thumb img { width: 100%; height: 100%; -o-object-fit: cover; object-fit: cover; display: block; }
.thumb:hover, .thumb.active { border-color: var(--blue); }
.detail-sidebar { display: -webkit-flex; display: flex; -webkit-flex-direction: column; flex-direction: column; gap: 16px; }
.sidebar-card { background: #fff; border-radius: var(--r); padding: 22px; box-shadow: var(--shadow); }
.sidebar-price { font-family: Georgia, serif; font-size: 1.5rem; color: var(--blue); font-weight: 700; margin-bottom: 4px; }
.sidebar-name { font-size: 1rem; font-weight: 600; color: var(--navy); margin-bottom: 14px; line-height: 1.4; }
.sidebar-spec { display: -webkit-flex; display: flex; -webkit-flex-direction: column; flex-direction: column; gap: 10px; }
.spec-row { display: -webkit-flex; display: flex; -webkit-justify-content: space-between; justify-content: space-between; font-size: .87rem; border-bottom: 1px solid var(--border); padding-bottom: 8px; }
.spec-key { color: var(--muted); }
.spec-val { font-weight: 600; color: var(--navy); }
.cta-call { display: block; text-align: center; padding: 13px; border-radius: 8px; background: var(--blue); color: #fff; font-weight: 700; margin-bottom: 10px; }
.cta-wa { display: block; text-align: center; padding: 13px; border-radius: 8px; background: #25D366; color: #fff; font-weight: 700; margin-bottom: 10px; }
.cta-enq { display: block; text-align: center; padding: 11px; border-radius: 8px; border: 2px solid var(--blue); color: var(--blue); font-weight: 600; }
.amenity-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 14px; }
.amenity-item { background: var(--blue-pale); border-radius: 8px; padding: 12px 8px; text-align: center; font-size: .82rem; color: var(--navy); font-weight: 500; }
.landmark-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-top: 14px; }
.landmark-item { background: var(--bg); border-radius: 8px; padding: 10px 14px; font-size: .82rem; color: var(--navy); }
.plot-table { width: 100%; border-collapse: collapse; font-size: .84rem; margin-top: 14px; }
.plot-table th { background: var(--blue); color: #fff; padding: 10px 10px; text-align: left; }
.plot-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); }
.plot-table tr:nth-child(even) td { background: var(--blue-pale); }
.avail { color: #16a34a; font-weight: 600; }

/* ── LIGHTBOX ── */
.lb-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.92); z-index: 9999;
  -webkit-align-items: center; align-items: center;
  -webkit-justify-content: center; justify-content: center;
}
.lb-overlay.open { display: -webkit-flex; display: flex; }
.lb-overlay img { max-width: 90vw; max-height: 88vh; border-radius: 8px; -o-object-fit: contain; object-fit: contain; }
.lb-close { position: absolute; top: 16px; right: 24px; color: #fff; font-size: 2.2rem; cursor: pointer; line-height: 1; background: none; border: none; }

/* ── FLOATING WA BUTTON ── */
.wa-float {
  position: fixed; bottom: 24px; right: 24px; z-index: 8000;
  background: #25D366; color: #fff; width: 58px; height: 58px;
  border-radius: 50%; display: -webkit-flex; display: flex;
  -webkit-align-items: center; align-items: center;
  -webkit-justify-content: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,.5);
  -webkit-animation: waPulse 2.5s infinite; animation: waPulse 2.5s infinite;
}
.wa-float:hover { -webkit-transform: scale(1.1); transform: scale(1.1); }
@-webkit-keyframes waPulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(37,211,102,.5); }
  50% { box-shadow: 0 4px 32px rgba(37,211,102,.8); }
}
@keyframes waPulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(37,211,102,.5); }
  50% { box-shadow: 0 4px 32px rgba(37,211,102,.8); }
}

/* ══════════════════════════════════════
   RESPONSIVE BREAKPOINTS
══════════════════════════════════════ */

/* ── Tablet (≤1024px) ── */
@media (max-width: 1024px) {
  .prop-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .detail-layout { grid-template-columns: 1fr; }
  .detail-sidebar { -webkit-flex-direction: row; flex-direction: row; -webkit-flex-wrap: wrap; flex-wrap: wrap; }
  .detail-sidebar > * { -webkit-flex: 1; flex: 1; min-width: 240px; }
  .hero h1 { font-size: 2.8rem; }
}

/* ── Mobile landscape (≤768px) ── */
@media (max-width: 768px) {
  .nav-links, .nav-btn { display: none !important; }
  .hamburger { display: -webkit-flex; display: flex; }

  header { height: 64px; padding: 0 4%; }
  .nav-logo img { height: 76px; margin-top: 22px; }

  .hero { min-height: auto; padding: 120px 4% 60px; }
  .hero h1 { font-size: 2.2rem; }
  .hero p { font-size: 1rem; }

  .stats-row { gap: 0; }
  .stat { min-width: 50%; border-right: none; border-bottom: 1px solid var(--border); padding: 12px; }
  .stat:nth-child(odd) { border-right: 1px solid var(--border); }
  .stat:nth-child(3), .stat:nth-child(4) { border-bottom: none; }

  .banner-inner { padding: 40px 4%; gap: 28px; }
  .banner-text h2 { font-size: 1.6rem; }
  .banner-img { min-width: 100%; }
  .banner-img img { height: 240px; }

  .sec { padding: 52px 4%; }
  .sec-title { font-size: 1.75rem; }

  .prop-grid { grid-template-columns: 1fr; gap: 20px; }
  .blog-grid { grid-template-columns: 1fr; gap: 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }

  .flex-2col { gap: 28px; }
  .rounded-img img { height: 260px; }

  .detail-layout { margin: 80px auto 40px; padding: 0 4%; }
  .gallery-main { height: 280px; }
  .amenity-grid { grid-template-columns: repeat(2, 1fr); }
  .landmark-grid { grid-template-columns: 1fr; }

  .form-card { padding: 22px; }
  .footer-bottom { -webkit-flex-direction: column; flex-direction: column; gap: 6px; text-align: center; }
}

/* ── Mobile portrait (≤480px) ── */
@media (max-width: 480px) {
  .hero h1 { font-size: 1.85rem; }
  .hero-btns { -webkit-flex-direction: column; flex-direction: column; }
  .hero-btns a { text-align: center; }

  .banner-btns { -webkit-flex-direction: column; flex-direction: column; }
  .banner-btns a { text-align: center; }

  .stat-n { font-size: 1.6rem; }
  .prop-card-img { height: 200px; }
  .gallery-main { height: 220px; }
  .thumb { width: 70px; height: 52px; }

  .amenity-grid { grid-template-columns: 1fr 1fr; }
  .wa-float { bottom: 16px; right: 16px; width: 50px; height: 50px; }

  .detail-sidebar { -webkit-flex-direction: column; flex-direction: column; }

  .plot-table { font-size: .75rem; }
  .plot-table th, .plot-table td { padding: 6px 6px; }
}