/* 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;
}

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

::-webkit-scrollbar-track {
    background: #f5f3ee;
}

::-webkit-scrollbar-thumb {
    background: #1a5240;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0f3d2e;
}

/* Selection */
::selection {
    background: #1a5240;
    color: #faf9f6;
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

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

@keyframes float-delayed-2 {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.animate-float {
    animation: float 4s ease-in-out infinite;
}

.animate-float-delayed {
    animation: float-delayed 5s ease-in-out infinite;
    animation-delay: 1s;
}

.animate-float-delayed-2 {
    animation: float-delayed-2 4.5s ease-in-out infinite;
    animation-delay: 2s;
}

/* Fade In Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

.fade-in-up.delay-1 {
    animation-delay: 0.1s;
}

.fade-in-up.delay-2 {
    animation-delay: 0.2s;
}

.fade-in-up.delay-3 {
    animation-delay: 0.3s;
}

/* Intersection Observer Classes */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal.visible {
    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; }

/* Mobile Menu Transitions */
.mobile-link {
    opacity: 0;
    transform: translateX(20px);
    transition: opacity 0.3s ease, transform 0.3s ease, color 0.3s ease;
}

.mobile-menu.open .mobile-link {
    opacity: 1;
    transform: translateX(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 Button Active State */
#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;
}

/* Service Card Hover Effects */
.group:hover .group-hover\:rotate-12 {
    transform: rotate(12deg);
}

/* Image loading placeholder */
img {
    background: linear-gradient(135deg, #ebe8e0 0%, #e0dcd3 100%);
}

/* Focus visible for accessibility */
:focus-visible {
    outline: 2px solid #1a5240;
    outline-offset: 2px;
}

/* Smooth transitions for all interactive elements */
a, button {
    transition: all 0.3s ease;
}

/* Prevent layout shift on images */
img {
    content-visibility: auto;
}

/* Print styles */
@media print {
    nav, #mobile-menu-btn, .animate-float, .animate-float-delayed, .animate-float-delayed-2 {
        display: none !important;
    }
    
    body {
        color: #000;
        background: #fff;
    }
}