/* 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(74, 222, 128, 0.3);
    color: #f0fdf4;
}

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

::-webkit-scrollbar-track {
    background: #0a1628;
}

::-webkit-scrollbar-thumb {
    background: #1e3d63;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #22c55e;
}

/* Navbar */
#navbar {
    background: transparent;
    transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}

#navbar.scrolled {
    background: rgba(4, 10, 20, 0.9);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

/* Mobile Menu */
#mobile-menu.active {
    opacity: 1;
    pointer-events: all;
}

#mobile-menu .mobile-link {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

/* Service Cards */
.service-card {
    transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}

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

/* Gallery */
.gallery-item {
    transition: transform 0.4s ease;
}

.gallery-item:hover {
    transform: scale(1.02);
}

/* Testimonials */
.testimonial-card {
    transition: transform 0.4s ease, border-color 0.4s ease;
}

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

/* Form Inputs */
input:focus,
textarea:focus,
select:focus {
    box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.1);
}

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scroll Reveal (progressive enhancement) */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s ease, transform 0.8s ease;
    }

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

    .reveal-left {
        opacity: 0;
        transform: translateX(-30px);
        transition: opacity 0.8s ease, transform 0.8s ease;
    }

    .reveal-left.revealed {
        opacity: 1;
        transform: translateX(0);
    }

    .reveal-right {
        opacity: 0;
        transform: translateX(30px);
        transition: opacity 0.8s ease, transform 0.8s ease;
    }

    .reveal-right.revealed {
        opacity: 1;
        transform: translateX(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; }
}

/* 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, .reveal-left, .reveal-right {
        opacity: 1;
        transform: none;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .font-display {
        font-size: clamp(1.75rem, 5vw, 2.5rem);
    }
}