/* ── Base & Utilities ── */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
}

::selection {
  background: #7dd3c0;
  color: #0a1628;
}

/* ── Navbar ── */
#navbar {
  backdrop-filter: blur(0px);
  -webkit-backdrop-filter: blur(0px);
}

#navbar.scrolled {
  background: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(125, 211, 192, 0.1);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  width: 0;
  height: 1px;
  background: #7dd3c0;
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

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

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

#mobile-menu.closed {
  opacity: 0;
  pointer-events: none;
}

.menu-line:nth-child(3) {
  transition: all 0.3s ease;
}

#mobile-menu-btn.active .menu-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

#mobile-menu-btn.active .menu-line:nth-child(2) {
  opacity: 0;
}

#mobile-menu-btn.active .menu-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
  width: 1.5rem;
}

/* ── Hero Animations ── */
.hero-subtitle {
  animation: fadeUp 0.8s ease forwards;
  animation-delay: 0.3s;
}

.hero-title {
  animation: fadeUp 0.8s ease forwards;
  animation-delay: 0.5s;
}

.hero-body {
  animation: fadeUp 0.8s ease forwards;
  animation-delay: 0.7s;
}

.hero-ctas {
  animation: fadeUp 0.8s ease forwards;
  animation-delay: 0.9s;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Section Headers ── */
.section-label {
  display: block;
}

.section-title {
  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, #7dd3c0, #5fb8a4);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}

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

/* ── Gallery ── */
.gallery-item {
  position: relative;
  cursor: pointer;
}

.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 22, 40, 0.3) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.gallery-item:hover::after {
  opacity: 1;
}

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s 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; }

/* ── Form Styles ── */
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='%230a1628' 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 1rem center;
  padding-right: 2.5rem;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .font-serif {
    line-height: 1.15;
  }
}