/* CSS Variables for Theming */
:root {
    /* Light Mode (Default) */
    --background: #ffffff;
    --foreground: #080808;
    --card: #f5f5f5;
    --card-foreground: #080808;
    --primary: #080808;
    --primary-foreground: #ffffff;
    --secondary: #f0f0f0;
    --secondary-foreground: #080808;
    --muted: #f5f5f5;
    --muted-foreground: #666666;
    --accent: #FF6B35;
    --accent-foreground: #ffffff;
    --border: #e5e5e5;
}

.dark {
    /* Dark Mode */
    --background: #080808;
    --foreground: #f2f2f2;
    --card: #121212;
    --card-foreground: #f2f2f2;
    --primary: #ffffff;
    --primary-foreground: #080808;
    --secondary: #1f1f1f;
    --secondary-foreground: #ffffff;
    --muted: #1f1f1f;
    --muted-foreground: #999999;
    --accent: #FF6B35;
    --accent-foreground: #ffffff;
    --border: #262626;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--background);
}
::-webkit-scrollbar-thumb {
    background: var(--muted-foreground);
    border-radius: 4px;
    opacity: 0.5;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

/* Animation Utilities */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-up {
    animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Staggered Animation Delays */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }

/* Navbar Blur */
.nav-scrolled {
    background-color: rgba(var(--background), 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding-top: 1rem !important;
    padding-bottom: 1rem !important;
}

/* Subtle Hover Animations */
.hover-lift {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px -10px rgba(0,0,0,0.1);
}
.dark .hover-lift:hover {
    box-shadow: 0 10px 30px -10px rgba(0,0,0,0.5);
}

/* Hamburger Menu Animation */
.hamburger {
    width: 24px;
    height: 24px;
    position: relative;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    z-index: 60;
}

.hamburger-line {
    width: 100%;
    height: 2px;
    background-color: var(--foreground);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    transform-origin: center;
}

.hamburger.active .hamburger-line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
}

.hamburger.active .hamburger-line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Theme Toggle Animation */
.theme-toggle-wrapper {
    position: relative;
    width: 20px;
    height: 20px;
    overflow: hidden;
}

.theme-icon {
    position: absolute;
    top: 0;
    left: 0;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.theme-icon.sun {
    transform: translateY(0) rotate(0);
    opacity: 1;
}
.dark .theme-icon.sun {
    transform: translateY(30px) rotate(90deg);
    opacity: 0;
}

.theme-icon.moon {
    transform: translateY(-30px) rotate(-90deg);
    opacity: 0;
}
.dark .theme-icon.moon {
    transform: translateY(0) rotate(0);
    opacity: 1;
}

/* Card Grid for Services */
.service-card {
    border: 1px solid var(--border);
    background-color: var(--card);
    border-radius: 1rem;
    padding: 2rem;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: 0 10px 30px -10px rgba(0,0,0,0.1);
}