/* ========== BASE ========== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  min-height: 100vh;
}

/* ========== NAVBAR ========== */
#navbar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

#navbar.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #0d9488;
  border-radius: 1px;
  transition: width 0.25s ease;
}

.nav-link:hover::after {
  width: 100%;
}

/* Mobile menu */
#mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-link {
  position: relative;
}

/* ========== 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, #0d9488, #2dd4bf);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
  border-radius: 3px 3px 0 0;
}

.service-card:hover::before {
  transform: scaleX(1);
}

/* ========== TESTIMONIAL CARDS ========== */
.testimonial-card {
  position: relative;
}

.testimonial-card::before {
  content: '\201C';
  position: absolute;
  top: 16px;
  right: 24px;
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 80px;
  color: #f0fdfa;
  line-height: 1;
  pointer-events: none;
}

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

/* Reduced motion: always visible */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
  }
}