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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #111218;
}
::-webkit-scrollbar-thumb {
    background: #353745;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #606275;
}

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

/* Fade-in animation */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children */
.stagger-children > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.stagger-children.visible > *:nth-child(1) { transition-delay: 0.1s; }
.stagger-children.visible > *:nth-child(2) { transition-delay: 0.2s; }
.stagger-children.visible > *:nth-child(3) { transition-delay: 0.3s; }
.stagger-children.visible > *:nth-child(4) { transition-delay: 0.4s; }
.stagger-children.visible > *:nth-child(5) { transition-delay: 0.5s; }
.stagger-children.visible > * {
    opacity: 1;
    transform: translateY(0);
}

/* Navbar scrolled state */
.nav-scrolled {
    background: rgba(17, 18, 24, 0.95) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Gradient text utility */
.gradient-text {
    background: linear-gradient(135deg, #ff8a6c, #ff6b4a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Image hover zoom container */
.img-zoom {
    overflow: hidden;
    border-radius: 1rem;
}
.img-zoom img {
    transition: transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.img-zoom:hover img {
    transform: scale(1.05);
}

/* Smooth focus outlines */
input:focus, textarea:focus, button:focus {
    outline: none;
}

/* Mobile menu transition */
#mobile-menu {
    transition: max-height 0.4s ease, opacity 0.3s ease;
}