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

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

body {
    min-height: 100vh;
}

::selection {
    background: rgba(212, 168, 83, 0.3);
    color: #fff;
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #091321;
}

::-webkit-scrollbar-thumb {
    background: rgba(212, 168, 83, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(212, 168, 83, 0.5);
}

/* Hero animations */
.hero-title {
    animation: slideUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    transform: translateY(40px);
    opacity: 0;
}

.hero-subtitle {
    animation: slideUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.15s forwards;
    transform: translateY(30px);
    opacity: 0;
}

.hero-desc {
    animation: slideUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.3s forwards;
    transform: translateY(30px);
    opacity: 0;
}

@keyframes slideUp {
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Scroll reveal */
.reveal {
    opacity: 1;
    transform: translateY(0);
    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);
}

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Service cards */
.service-card {
    transition: border-color 0.5s ease, transform 0.5s ease, box-shadow 0.5s ease;
}

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

/* Gallery hover */
.gallery-item {
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Mobile menu */
.mobile-menu-overlay {
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.mobile-menu-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.mobile-menu-link {
    transform: translateY(20px);
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease, color 0.3s ease;
}

.mobile-menu-overlay.active .mobile-menu-link {
    transform: translateY(0);
    opacity: 1;
}

.mobile-menu-overlay.active .mobile-menu-link:nth-child(1) { transition-delay: 0.1s; }
.mobile-menu-overlay.active .mobile-menu-link:nth-child(2) { transition-delay: 0.15s; }
.mobile-menu-overlay.active .mobile-menu-link:nth-child(3) { transition-delay: 0.2s; }
.mobile-menu-overlay.active .mobile-menu-link:nth-child(4) { transition-delay: 0.25s; }
.mobile-menu-overlay.active .mobile-menu-link:nth-child(5) { transition-delay: 0.3s; }
.mobile-menu-overlay.active .mobile-menu-link:nth-child(6) { transition-delay: 0.35s; }

/* Hamburger */
.hamburger-line {
    transition: transform 0.3s ease, opacity 0.3s ease, top 0.3s ease;
}

#menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: translateX(-50%) rotate(45deg);
    top: 15px;
}

#menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
}

#menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: translateX(-50%) rotate(-45deg);
    top: 15px;
}

/* Header scroll state */
#header.scrolled {
    background: rgba(9, 19, 33, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Back to top */
#back-to-top.visible {
    opacity: 1;
    pointer-events: all;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: #D4A853;
    transition: width 0.3s ease;
}

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

/* Select dropdown */
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='%23D4A853' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
}

/* Gallery grid responsive */
@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .gallery-grid .col-span-2 {
        col-span: 2;
    }
}

/* Print styles */
@media print {
    header, #back-to-top, .mobile-menu-overlay {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
}