/* Base & Animations */
@keyframes fade-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-up {
    animation: fade-up 0.8s ease-out;
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

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

::-webkit-scrollbar-track {
    background: #2C2C2C;
}

::-webkit-scrollbar-thumb {
    background: #FF6B4A;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #FF8F75;
}

/* Navbar Scroll State */
nav.scrolled {
    background: rgba(249, 247, 244, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
}

nav.scrolled .menu-line {
    background: #2C2C2C;
}

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

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

/* Hamburger Animation */
#mobile-menu.open ~ .flex .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

#mobile-menu.open ~ .flex .menu-line:nth-child(2) {
    opacity: 0;
}

#mobile-menu.open ~ .flex .menu-line:nth-child(3) {
    width: 100%;
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Intersection Observer Animations */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Stagger children */
.reveal-stagger > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0.1s; }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 0.2s; }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 0.3s; }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 0.4s; }
.reveal-stagger.visible > *:nth-child(5) { transition-delay: 0.5s; }
.reveal-stagger.visible > *:nth-child(6) { transition-delay: 0.6s; }

.reveal-stagger.visible > * {
    opacity: 1;
    transform: translateY(0);
}

/* Selection Color */
::selection {
    background: #FF6B4A;
    color: #fff;
}