/* Base & Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    min-height: 100vh;
    overflow-x: hidden;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: #FAFBF9;
}
::-webkit-scrollbar-thumb {
    background: #B7E4C7;
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: #52B788;
}

/* Selection */
::selection {
    background: #D8F3DC;
    color: #1B4332;
}

/* Animation Keyframes */
@keyframes scrollLine {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100%); }
}

.animate-scroll-line {
    animation: scrollLine 1.8s ease-in-out infinite;
}

/* Scroll Reveal (progressive enhancement) */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }
    .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; }
}

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

.service-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: #1B4332;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

/* Gallery Item */
.gallery-item {
    position: relative;
}

.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(27, 67, 50, 0);
    transition: background 0.5s ease;
    pointer-events: none;
}

.gallery-item:hover::after {
    background: rgba(27, 67, 50, 0.1);
}

/* Navbar Glass Effect */
.navbar-scrolled {
    background: rgba(250, 251, 249, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(27, 67, 50, 0.08);
}

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

.mobile-menu-open .line1 {
    transform: rotate(45deg) translate(3px, 3px);
}

.mobile-menu-open .line2 {
    opacity: 0;
}

.mobile-menu-open .line3 {
    transform: rotate(-45deg) translate(3px, -3px);
    width: 5rem;
}

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

select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2352B788' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0 center;
    padding-right: 2rem;
}

/* Print */
@media print {
    header, footer, #contact-form, .reveal { display: none; }
    body { color: #000; background: #fff; }
}