*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    font-family: 'Inter', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

::selection {
    background: #0d9488;
    color: white;
}

/* Preloader */
.fade-out {
    opacity: 0 !important;
    pointer-events: none;
}

/* Navbar */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #2dd4bf;
    transition: width 0.3s ease;
}

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

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

/* Hero animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.fade-in:nth-child(1) { animation-delay: 0.1s; }
.fade-in:nth-child(2) { animation-delay: 0.3s; }
.fade-in:nth-child(3) { animation-delay: 0.5s; }
.fade-in:nth-child(4) { animation-delay: 0.7s; }

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

/* Service cards */
.service-card {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.service-card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Review cards */
.review-card {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.review-card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Scroll animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.scroll-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Smooth hover for images */
img {
    max-width: 100%;
    height: auto;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #0f172a;
}

::-webkit-scrollbar-thumb {
    background: #0d9488;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #14b8a6;
}

/* Focus styles */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid #2dd4bf;
    outline-offset: 2px;
}

/* Mobile navigation link animation */
.mobile-nav-link {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

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

.mobile-menu-open .mobile-nav-link:nth-child(1) { transition-delay: 0.05s; }
.mobile-menu-open .mobile-nav-link:nth-child(2) { transition-delay: 0.1s; }
.mobile-menu-open .mobile-nav-link:nth-child(3) { transition-delay: 0.15s; }
.mobile-menu-open .mobile-nav-link:nth-child(4) { transition-delay: 0.2s; }
.mobile-menu-open .mobile-nav-link:nth-child(5) { transition-delay: 0.25s; }
.mobile-menu-open .mobile-nav-link:nth-child(6) { transition-delay: 0.3s; }