/* Base & Animations */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

/* Fade-in animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.animate-fade-in {
    animation: fadeInUp 0.8s ease-out forwards;
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Navbar scroll state */
.nav-scrolled {
    background: rgba(8, 14, 26, 0.95) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

.nav-scrolled .nav-link {
    color: rgba(255, 255, 255, 0.8);
}

.nav-scrolled .nav-link:hover {
    color: #2dd4bf;
}

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

#mobile-menu.open .mobile-link {
    animation: fadeInUp 0.5s ease-out forwards;
}

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

/* Hamburger animation */
#menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

#menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

#menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
    width: 1.5rem;
}

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

::-webkit-scrollbar-track {
    background: #080e1a;
}

::-webkit-scrollbar-thumb {
    background: #14b8a6;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #2dd4bf;
}

/* Selection */
::selection {
    background: rgba(20, 184, 166, 0.3);
    color: #fff;
}

/* Image hover effects */
img {
    transition: transform 0.7s ease;
}

/* Smooth focus */
a:focus-visible, button:focus-visible {
    outline: 2px solid #2dd4bf;
    outline-offset: 4px;
    border-radius: 4px;
}

/* Reduce 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;
    }
    
    .reveal {
        opacity: 1;
        transform: none;
    }
}