/* Base & Custom Properties */
:root {
    --color-charcoal-900: #1C1C1E;
    --color-charcoal-800: #2C2C2E;
    --color-coral-500: #F06529;
    --color-coral-400: #FF8A52;
    --color-coral-100: #FFE8DD;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    overflow-x: hidden;
}

/* Scroll Reveal Animations */
.reveal-up,
.reveal-left,
.reveal-right {
    opacity: 1;
    transform: none;
    transition: opacity 0.7s ease, transform 0.7s ease;
}

@media (prefers-reduced-motion: no-preference) {
    .reveal-up {
        opacity: 0;
        transform: translateY(30px);
    }
    
    .reveal-left {
        opacity: 0;
        transform: translateX(-40px);
    }
    
    .reveal-right {
        opacity: 0;
        transform: translateX(40px);
    }
    
    .reveal-up.revealed,
    .reveal-left.revealed,
    .reveal-right.revealed {
        opacity: 1;
        transform: none;
    }
}

/* Hero Animations */
@media (prefers-reduced-motion: no-preference) {
    .hero-subtitle {
        opacity: 0;
        transform: translateY(20px);
        animation: heroFadeUp 0.8s ease forwards;
        animation-delay: 0.2s;
    }
    
    .hero-title {
        opacity: 0;
        transform: translateY(30px);
        animation: heroFadeUp 0.8s ease forwards;
        animation-delay: 0.4s;
    }
    
    .hero-desc {
        opacity: 0;
        transform: translateY(20px);
        animation: heroFadeUp 0.8s ease forwards;
        animation-delay: 0.6s;
    }
    
    .hero-cta {
        opacity: 0;
        transform: translateY(20px);
        animation: heroFadeUp 0.8s ease forwards;
        animation-delay: 0.8s;
    }
    
    .hero-scroll {
        opacity: 0;
        animation: heroFadeUp 0.8s ease forwards;
        animation-delay: 1.2s;
    }
}

@keyframes heroFadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Navbar scroll state */
nav.scrolled {
    background: rgba(28, 28, 30, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

nav.scrolled #nav-brand {
    color: #fff;
}

/* Mobile menu */
.mobile-menu-open {
    overflow: hidden;
}

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

#mobile-menu.open .mobile-link {
    animation: menuLinkIn 0.4s ease forwards;
    opacity: 0;
}

#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; }

@keyframes menuLinkIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
    from {
        opacity: 0;
        transform: translateY(15px);
    }
}

.mobile-link {
    transform: translateY(15px);
}

/* Hamburger animation */
.menu-line {
    transition: transform 0.3s ease, opacity 0.3s ease;
}

#menu-toggle.active .menu-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

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

#menu-toggle.active .menu-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* Subtle hover lift for cards */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Selection color */
::selection {
    background: #F06529;
    color: #fff;
}

/* Smooth image loading */
img {
    background-color: #f0f0f0;
}

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

::-webkit-scrollbar-track {
    background: #1C1C1E;
}

::-webkit-scrollbar-thumb {
    background: #3D3D3F;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #F06529;
}