/* ── Base ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; -webkit-font-smoothing: antialiased; }

/* ── Navigation ── */
#nav {
  background: rgba(28, 31, 38, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: box-shadow 0.3s ease;
}
#nav.nav-scrolled {
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}
.nav-link { position: relative; }
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #FF6B5A;
  transition: width 0.25s ease;
}
.nav-link:hover::after { width: 100%; }

/* Mobile menu */
.nav-menu {
  background: rgba(28, 31, 38, 0.97);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  animation: slideDown 0.25s ease;
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
.mobile-nav-link { border-bottom: 1px solid rgba(255, 255, 255, 0.05); }

/* ── Buttons ── */
.btn-coral {
  background: #FF6B5A;
  transition: background 0.2s ease, box-shadow 0.2s ease;
}
.btn-coral:hover {
  background: #E85A4A;
  box-shadow: 0 8px 30px rgba(255, 107, 90, 0.35);
}
.btn-outline-light {
  border: 1.5px solid rgba(255, 255, 255, 0.35);
  transition: border-color 0.2s ease, background 0.2s ease;
}
.btn-outline-light:hover {
  border-color: rgba(255, 255, 255, 0.7);
}
.btn-white {
  background: #ffffff;
  transition: background 0.2s ease, box-shadow 0.2s ease;
}
.btn-white:hover {
  background: #f8f8f8;
  box-shadow: 0 8px 30px rgba(255, 255, 255, 0.25);
}

/* ── Service Cards ── */
.service-card {
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #FF6B5A, #FF8C7A);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}
.service-card:hover::before {
  transform: scaleX(1);
}

/* ── Floating geometric shapes ── */
.floating-shape {
  position: fixed;
  pointer-events: none;
  z-index: 0;
  opacity: 0.04;
}
.shape-circle-1 {
  width: 400px;
  height: 400px;
  border: 2px solid #FF6B5A;
  border-radius: 50%;
  top: 20%;
  right: -100px;
  animation: floatSlow 20s ease-in-out infinite;
}
.shape-square-1 {
  width: 120px;
  height: 120px;
  background: #FF6B5A;
  bottom: 30%;
  left: -40px;
  transform: rotate(45deg);
  animation: floatSlow 15s ease-in-out infinite reverse;
}
.shape-triangle-1 {
  width: 0;
  height: 0;
  border-left: 60px solid transparent;
  border-right: 60px solid transparent;
  border-bottom: 100px solid #FF6B5A;
  top: 60%;
  right: 5%;
  animation: floatSlow 18s ease-in-out infinite;
  opacity: 0.03;
}
.shape-circle-2 {
  width: 200px;
  height: 200px;
  border: 2px solid #FF6B5A;
  border-radius: 50%;
  bottom: 10%;
  left: 15%;
  animation: floatSlow 22s ease-in-out infinite reverse;
}
@keyframes floatSlow {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-30px) rotate(5deg); }
}

/* ── Scroll reveal (progressive enhancement) ── */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
  .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; }
  .reveal-delay-5 { transition-delay: 0.5s; }
  .reveal-delay-6 { transition-delay: 0.6s; }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  .floating-shape { animation: none; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}