/* 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: rgba(45, 212, 191, 0.3);
    color: #fff;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: #0A1628;
}
::-webkit-scrollbar-thumb {
    background: #1D3557;
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: #2DD4BF;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: #2DD4BF;
    transition: width 0.3s ease;
}

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

.nav-link:hover {
    color: #2DD4BF !important;
}

/* Mobile Menu */
.mobile-link {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
}

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

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

/* Mobile menu button animations */
.menu-line {
    display: block;
    transition: all 0.3s ease;
}

#menuBtn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(3px, 3px);
}

#menuBtn.active .menu-line:nth-child(2) {
    opacity: 0;
    transform: translateX(10px);
}

#menuBtn.active .menu-line:nth-child(3) {
    width: 24px;
    transform: rotate(-45deg) translate(3px, -3px);
}

/* Navbar scroll state */
#navbar.scrolled {
    background: rgba(4, 13, 26, 0.95);
    backdrop-blur-xl;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

#navbar.scrolled .nav-link {
    color: rgba(255, 255, 255, 0.8);
}

/* Service Cards */
.service-card {
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #2DD4BF, transparent);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.service-card:hover::before {
    opacity: 1;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* Scroll Reveal Animations */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.revealed {
    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; }

/* Staggered service cards */
.service-card {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 0.6s cubic-bezier(0.16, 1, 0.3, 1),
                border-color 0.5s ease,
                box-shadow 0.5s ease;
}

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

.service-card:nth-child(1).revealed { transition-delay: 0.05s; }
.service-card:nth-child(2).revealed { transition-delay: 0.1s; }
.service-card:nth-child(3).revealed { transition-delay: 0.15s; }
.service-card:nth-child(4).revealed { transition-delay: 0.2s; }
.service-card:nth-child(5).revealed { transition-delay: 0.25s; }
.service-card:nth-child(6).revealed { transition-delay: 0.3s; }

/* Image hover zoom */
.overflow-hidden img {
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Pulse animation for map pin */
@keyframes pulse-ring {
    0% {
        box-shadow: 0 0 0 0 rgba(45, 212, 191, 0.4);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(45, 212, 191, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(45, 212, 191, 0);
    }
}

.w-10.rounded-full.bg-mint-400 {
    animation: pulse-ring 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Form focus styles */
input:focus,
select:focus,
textarea:focus {
    border-color: #2DD4BF !important;
    box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.1);
}

/* Button hover lift */
button[type="submit"] {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

button[type="submit"]::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent, rgba(255,255,255,0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}

button[type="submit"]:hover::after {
    transform: translateX(100%);
}

/* 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;
    }
    
    .reveal,
    .service-card {
        opacity: 1;
        transform: none;
    }
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .font-serif {
        line-height: 1.1;
    }
}

@media (min-width: 1024px) {
    /* Subtle parallax-like effect on hero */
    #hero {
        perspective: 1000px;
    }
}