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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width 0.3s ease;
}

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

/* Mobile menu */
#mobile-menu.active .menu-line:first-child {
    transform: rotate(45deg) translate(3px, 3px);
}

#mobile-menu.active .menu-line:last-child {
    transform: rotate(-45deg) translate(3px, -3px);
}

/* Hero */
.hero-bg {
    will-change: transform;
}

/* Scroll reveal */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 0;
        transform: translateY(24px);
    }

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

/* Service cards */
.service-card {
    transition: background-color 0.5s ease;
}

.service-card:hover .service-icon {
    transform: scale(1.1);
}

.service-icon {
    transition: transform 0.3s ease;
}

/* Gallery */
.gallery-item {
    height: 250px;
}

@media (min-width: 768px) {
    .gallery-item {
        height: 300px;
    }
}

.gallery-item:nth-child(1),
.gallery-item:nth-child(3),
.gallery-item:nth-child(5) {
    height: 300px;
}

@media (min-width: 768px) {
    .gallery-item:nth-child(1),
    .gallery-item:nth-child(3),
    .gallery-item:nth-child(5) {
        height: 360px;
    }
}

/* Buttons */
.btn-primary,
.btn-secondary {
    position: relative;
    overflow: hidden;
}

.btn-primary::before,
.btn-secondary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-primary:hover::before,
.btn-secondary:hover::before {
    opacity: 1;
}

/* Form */
input:focus,
textarea:focus {
    border-color: #0d9488 !important;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Selection */
::selection {
    background: #ccfbf1;
    color: #134e4a;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: #f8fafc;
}

::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}