/* 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;
}

/* Smooth scroll offset for fixed nav */
section[id] {
    scroll-margin-top: 80px;
}

/* Navbar transitions */
.nav-scrolled {
    background: rgba(250, 248, 246, 0.95) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

.nav-scrolled .menu-line {
    background: #292524 !important;
}

/* Mobile menu animation */
.mobile-menu-open #mobileMenu {
    opacity: 1 !important;
    pointer-events: all !important;
}

.mobile-menu-open .menu-line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.mobile-menu-open .menu-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.mobile-menu-open .menu-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
    width: 1.4rem;
}

.mobile-link {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

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

.mobile-menu-open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
.mobile-menu-open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
.mobile-menu-open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
.mobile-menu-open .mobile-link:nth-child(4) { transition-delay: 0.2s; }
.mobile-menu-open .mobile-link:nth-child(5) { transition-delay: 0.25s; }

/* Scroll reveal animations (progressive enhancement) */
.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(32px);
    }
    
    .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; }
}

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

::-webkit-scrollbar-track {
    background: #faf8f6;
}

::-webkit-scrollbar-thumb {
    background: #d6d3d1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a29e;
}

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

/* Selection color */
::selection {
    background: #f9e4e4;
    color: #7f1d30;
}

/* Image lazy-load placeholder */
img {
    opacity: 1;
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    .reveal {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
    
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}