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

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

body {
    overflow-x: hidden;
}

img {
    display: block;
    max-width: 100%;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

input, textarea {
    font-family: inherit;
}

::selection {
    background-color: rgba(255, 107, 53, 0.3);
    color: inherit;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: #09090e;
}
::-webkit-scrollbar-thumb {
    background: #30303e;
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: #ff6b35;
}

/* Preloader */
#preloader {
    position: fixed;
    inset: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #09090e;
    transition: opacity 0.7s ease;
}

#preloader.fade-out {
    opacity: 0;
    pointer-events: none;
}

/* Navbar */
#navbar {
    transition: background-color 0.5s ease, backdrop-filter 0.5s ease, padding 0.5s ease;
}

#navbar.scrolled {
    background-color: rgba(9, 9, 14, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

#navbar.scrolled .nav-line {
    background-color: #e3e3e6;
}

/* Mobile menu */
#mobileMenu {
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

#mobileMenu.open {
    opacity: 1;
    pointer-events: all;
}

#mobileMenu.closed {
    opacity: 0;
    pointer-events: none;
}

.mobile-link {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

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

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

/* Nav lines animation */
.nav-line {
    transition: transform 0.3s ease, opacity 0.3s ease;
}

#menuBtn.active .nav-line:first-child {
    transform: rotate(45deg) translate(3px, 3px);
}

#menuBtn.active .nav-line:last-child {
    transform: rotate(-45deg) translate(3px, -3px);
    opacity: 0;
}

/* Reveal animations */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.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);
    }
}

/* Hero scroll indicator */
@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(6px); opacity: 0.5; }
}

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

input:focus ~ label, textarea:focus ~ label {
    color: #ff6b35;
}

/* Button hover glow */
button[type="submit"]:hover {
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.2);
}

/* Image aspect ratios */
.aspect-\[4\/5\] {
    aspect-ratio: 4 / 5;
}

/* Smooth image loading */
img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}