/* ─── BASE ─── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { overflow-x: hidden; }

/* ─── NAV SCROLL STATE ─── */
#nav.scrolled {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
}

.nav-link { position: relative; }
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: #7B2434;
  transition: width 0.25s ease;
}
.nav-link:hover::after { width: 100%; }

/* ─── SCROLL INDICATOR ─── */
.scroll-line {
  width: 2px;
  height: 100%;
  background: white;
  position: absolute;
  top: 0;
  left: 0;
  animation: scrollDown 1.5s ease-in-out infinite;
}
@keyframes scrollDown {
  0% { transform: translateY(-100%); opacity: 0; }
  50% { opacity: 1; }
  100% { transform: translateY(100%); opacity: 0; }
}

/* ─── FLOATING CARD ANIMATIONS ─── */
.floating-card-1 { animation: float1 4s ease-in-out infinite; }
.floating-card-2 { animation: float2 4.5s ease-in-out infinite; }
.floating-card-3 { animation: float3 5s ease-in-out infinite; }
.floating-card-4 { animation: float4 3.5s ease-in-out infinite; }

@keyframes float1 {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}
@keyframes float2 {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-8px) rotate(1deg); }
}
@keyframes float3 {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
}
@keyframes float4 {
  0%, 100% { transform: translateY(0px) rotate(-2deg); }
  50% { transform: translateY(-10px) rotate(0deg); }
}

/* ─── SERVICE CARDS ─── */
.service-card {
  will-change: transform;
}

/* ─── TESTIMONIAL CARDS ─── */
.testimonial-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

/* ─── SCROLL REVEAL (progressive enhancement) ─── */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s 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; }
}

/* ─── MOBILE MENU ─── */
#mobile-menu {
  animation: slideDown 0.25s ease;
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ─── FORM SELECT ARROW ─── */
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239ca3af' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  appearance: none;
}

/* ─── UTILITIES ─── */
.no-underline { text-decoration: none; }
</style>