/* ========== BASE & RESET ========== */
*, *::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-color: rgba(126, 212, 183, 0.3);
  color: #0A2342;
}

/* ========== NAVIGATION ========== */
#nav {
  transition: background-color 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
}

#nav[data-scrolled="true"] {
  background-color: rgba(252, 251, 248, 0.97);
  box-shadow: 0 1px 20px rgba(10, 35, 66, 0.06);
  backdrop-filter: blur(12px);
}

.nav-logo-color {
  transition: color 0.4s ease;
}

#nav[data-scrolled="true"] .nav-logo-color {
  color: #0A2342;
}

/* ========== HERO ANIMATIONS ========== */
.hero-subtitle {
  animation: fadeSlideUp 0.8s ease forwards;
  opacity: 0;
  transform: translateY(20px);
}

.hero-headline {
  opacity: 0;
  animation: fadeSlideUp 0.8s ease 0.2s forwards;
  transform: translateY(30px);
}

.hero-headline span:nth-child(2) {
  animation-delay: 0.35s;
}

.hero-headline span:nth-child(3) {
  animation-delay: 0.5s;
}

.hero-body {
  opacity: 0;
  animation: fadeSlideUp 0.8s ease 0.6s forwards;
  transform: translateY(20px);
}

.hero-cta {
  opacity: 0;
  animation: fadeSlideUp 0.8s ease 0.75s forwards;
  transform: translateY(20px);
}

.hero-stats {
  opacity: 0;
  animation: fadeSlideUp 0.8s ease 0.9s forwards;
  transform: translateY(20px);
}

.hero-image-wrapper {
  opacity: 0;
  animation: fadeIn 1s ease 0.4s forwards;
}

.hero-accent-card {
  opacity: 0;
  animation: fadeSlideUp 0.8s ease 1s forwards;
  transform: translateY(20px);
}

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

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

/* ========== SCROLL REVEAL ========== */
.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal[data-revealed="true"] {
  opacity: 0;
  transform: translateY(40px);
}

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(40px);
  }

  .reveal[data-revealed="true"] {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========== SERVICE CARDS ========== */
.service-card {
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(10, 35, 66, 0.15);
}

/* ========== TESTIMONIAL CARDS ========== */
.testimonial-card {
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(10, 35, 66, 0.08);
}

/* ========== MOBILE MENU ========== */
#mobile-menu {
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

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

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

.menu-line {
  transition: transform 0.4s ease, opacity 0.3s ease, width 0.3s ease;
}

#menu-btn.active .menu-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

#menu-btn.active .menu-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
  width: 1.5rem;
}

/* ========== MOBILE LINKS ========== */
.mobile-link {
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
}

#mobile-menu.open .mobile-link {
  opacity: 1;
  transform: translateY(0);
}

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.25s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.3s; }
#mobile-menu.open .mobile-link:nth-child(6) { transition-delay: 0.35s; }

/* ========== CUSTOM SCROLLBAR ========== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #F7F4EE;
}

::-webkit-scrollbar-thumb {
  background: #7ED4B7;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #5BC4A3;
}

/* ========== FOCUS STYLES ========== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid #7ED4B7;
  outline-offset: 2px;
  border-radius: 4px;
}

/* ========== REDUCED MOTION ========== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}