/* ============================================================
   West Coast Innovation Flooring — Custom CSS
   Tailwind handles the heavy lifting; this file covers:
   - Scroll-based fade-in animation
   - Mobile nav open/close state
   - Hero background image
   - Hover bar reveal on "Why Choose" cards
   - Gallery grid mosaic layout
   - Smooth scroll offset for sticky nav
   ============================================================ */

/* ---------- Scroll font smoothing ---------- */
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body  { font-family: 'Inter', 'Segoe UI', system-ui, sans-serif; }

/* ---------- Fade-in on scroll ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: none;
}

/* ---------- Hero background ---------- */
.hero-bg {
  background-image: url('https://images.unsplash.com/photo-1586023492125-27b2c045efd7?w=1600&q=85');
  background-size: cover;
  background-position: center 40%;
}

/* ---------- Nav active link ---------- */
.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}
.nav-link::after {
  content: '';
  display: block;
  height: 2px;
  background: #C8943A;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

/* ---------- Service card image zoom ---------- */
.service-card:hover .service-img {
  transform: scale(1.045);
}
.service-img {
  transition: transform 0.5s ease;
}

/* ---------- Why card top-border reveal ---------- */
.why-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: #C8943A;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}
.why-card:hover::before {
  transform: scaleX(1);
}

/* ---------- Gallery mosaic ---------- */
.gallery-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
@media (min-width: 640px) {
  .gallery-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: 220px;
    gap: 10px;
  }
  .gallery-grid .g1 { grid-column: span 2; }
}
@media (min-width: 768px) {
  .gallery-grid {
    grid-template-columns: repeat(12, 1fr);
    grid-auto-rows: 200px;
  }
  .gallery-grid .g1 { grid-column: span 8; grid-row: span 2; }
  .gallery-grid .g2 { grid-column: span 4; }
  .gallery-grid .g3 { grid-column: span 4; }
  .gallery-grid .g4 { grid-column: span 4; }
  .gallery-grid .g5 { grid-column: span 4; }
  .gallery-grid .g6 { grid-column: span 4; }
  .gallery-grid .g7 { grid-column: span 6; }
  .gallery-grid .g8 { grid-column: span 6; }
}

/* ---------- Gallery overlay reveal ---------- */
.g-item .g-overlay {
  opacity: 0;
  transition: opacity 0.3s ease;
}
.g-item:hover .g-overlay {
  opacity: 1;
}

/* ---------- Stagger helper ---------- */
.stagger-1 { transition-delay: 0.07s; }
.stagger-2 { transition-delay: 0.14s; }
.stagger-3 { transition-delay: 0.21s; }
.stagger-4 { transition-delay: 0.28s; }
.stagger-5 { transition-delay: 0.35s; }
.stagger-6 { transition-delay: 0.42s; }

/* ---------- Upload box drag highlight ---------- */
.upload-box:focus-within,
.upload-box:hover {
  border-color: #C8943A;
  background: rgba(200,148,58,0.04);
}

/* ---------- Form focus ring gold ---------- */
.form-input:focus {
  outline: none;
  border-color: #C8943A;
  box-shadow: 0 0 0 3px rgba(200,148,58,0.15);
}

/* ---------- Counter number ---------- */
.count-num {
  font-variant-numeric: tabular-nums;
}

/* ---------- Mobile nav overlay ---------- */
#mobileNav {
  display: none;
}
#mobileNav.open {
  display: flex;
}

/* ---------- Mobile: prevent horizontal overflow ---------- */
body, html {
  overflow-x: hidden;
  max-width: 100%;
}

/* ---------- Mobile: body bottom clearance for sticky bar ---------- */
@media (max-width: 767px) {
  body {
    padding-bottom: 68px;
  }
}

/* ---------- Mobile: trust bar wraps to 2-col grid ---------- */
@media (max-width: 479px) {
  .trust-bar-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 20px;
    justify-items: start;
  }
}

/* ---------- Signs grid: 2-col on small mobile ---------- */
@media (max-width: 639px) {
  .signs-grid-2 {
    grid-template-columns: 1fr 1fr;
  }
}

/* ---------- Tap target minimum on mobile ---------- */
@media (max-width: 767px) {
  .btn-tap {
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
}