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

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

body {
    overflow-x: hidden;
}

/* Preloader */
#preloader {
    animation: fadeOut 0.6s ease-out forwards;
    animation-delay: 0.8s;
    pointer-events: none;
}

@keyframes fadeOut {
    to {
        opacity: 0;
        visibility: hidden;
    }
}

#preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

/* Navbar scroll state */
header.scrolled {
    background: rgba(6, 78, 59, 0.97) !important;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
}

header.scrolled .nav-link {
    color: rgba(255, 255, 255, 0.85) !important;
}

header.scrolled .nav-link:hover {
    color: #34d399 !important;
}

/* Mobile menu */
#mobile-menu.open {
    transform: translateX(0);
}

.mobile-nav-link {
    position: relative;
}

.mobile-nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: #34d399;
    transition: width 0.3s ease;
}

.mobile-nav-link:hover::after {
    width: 80%;
}

/* Stat cards */
.stat-card {
    animation: floatCard 6s ease-in-out infinite;
}

.stat-card:nth-child(2) {
    animation-delay: -1.5s;
}

.stat-card:nth-child(3) {
    animation-delay: -3s;
}

.stat-card:nth-child(4) {
    animation-delay: -4.5s;
}

@keyframes floatCard {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

/* 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, #059669, #34d399);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

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

/* Testimonial cards */
.testimonial-card {
    transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}

.testimonial-card:hover {
    transform: translateY(-4px);
}

/* Scroll reveal animations */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal[data-reveal] {
    opacity: 0;
    transform: translateY(30px);
}

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

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

::-webkit-scrollbar-track {
    background: #064e3b;
}

::-webkit-scrollbar-thumb {
    background: #059669;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #34d399;
}

/* Selection */
::selection {
    background: #059669;
    color: white;
}

/* Form focus states */
input:focus, select:focus, textarea:focus {
    outline: none;
}

/* Smooth image loading */
img {
    transition: opacity 0.3s ease;
}

img[loading="lazy"] {
    opacity: 0;
}

img[loading="lazy"].loaded {
    opacity: 1;
}

/* 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;
    }
    
    .stat-card {
        animation: none;
    }
}