/* ===== Base & Typography ===== */
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

::selection {
    background-color: rgba(255, 107, 74, 0.3);
    color: #fff;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #1a1a1a;
}
::-webkit-scrollbar-thumb {
    background: #3d3d3d;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #FF6B4A;
}

/* ===== Scroll Line Animation ===== */
@keyframes scrollLine {
    0% {
        opacity: 0;
        transform: scaleY(0);
        transform-origin: top;
    }
    50% {
        opacity: 1;
        transform: scaleY(1);
        transform-origin: top;
    }
    51% {
        transform-origin: bottom;
    }
    100% {
        opacity: 0;
        transform: scaleY(0);
        transform-origin: bottom;
    }
}

.animate-scroll-line {
    animation: scrollLine 2s ease-in-out infinite;
}

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

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

/* ===== Stagger Children ===== */
.reveal-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94), 
                transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-stagger.revealed > *:nth-child(1) { transition-delay: 0.0s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(2) { transition-delay: 0.1s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(3) { transition-delay: 0.2s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(4) { transition-delay: 0.3s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(5) { transition-delay: 0.4s; opacity: 1; transform: translateY(0); }
.reveal-stagger.revealed > *:nth-child(6) { transition-delay: 0.5s; opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: no-preference) {
    .reveal-stagger > * {
        opacity: 0;
        transform: translateY(20px);
    }
}

/* ===== Navbar Scrolled State ===== */
.nav-scrolled {
    background: rgba(26, 26, 26, 0.95) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

/* ===== Mobile Menu ===== */
.mobile-menu-open {
    opacity: 1 !important;
    pointer-events: all !important;
}

/* ===== Button Focus ===== */
button:focus-visible,
a:focus-visible {
    outline: 2px solid #FF6B4A;
    outline-offset: 2px;
}

/* ===== Input Focus ===== */
input:focus,
select:focus,
textarea:focus {
    outline: none;
}

/* ===== Image Loading ===== */
img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

/* ===== Selection ===== */
::selection {
    background: rgba(255, 107, 74, 0.3);
}

/* ===== Smooth Image Transitions ===== */
img {
    transition: filter 0.3s ease;
}

/* ===== Card Hover Effects ===== */
.group:hover .group-hover\:scale-110 {
    will-change: transform;
}

/* ===== 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;
    }
}

/* ===== Print Styles ===== */
@media print {
    nav, footer, .animate-scroll-line {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
}