:root {
    --primary-bg: #0a0c10;
    --secondary-bg: #161b22;
    --accent-color: #64ffda;
    --accent-color-2: #ff64d6;
    --text-primary: #e6f1ff;
    --text-secondary: #8892b0;
    --hover-color: rgba(100, 255, 218, 0.1);
    --sidebar-width: 250px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Fira Code', monospace;
}

body {
    background-color: var(--primary-bg);
    color: var(--text-primary);
    display: flex;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Sidebar Styles */
.sidebar {
    width: var(--sidebar-width);
    background: var(--secondary-bg);
    padding: 30px;
    position: fixed;
    height: 100vh;
    border-right: 1px solid rgba(100, 255, 218, 0.1);
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-logo {
    width: 150px;
    margin-bottom: 30px;
    filter: drop-shadow(0 0 10px var(--accent-color));
}

.nav-links {
    list-style: none;
}

.nav-links li {
    margin: 20px 0;
    opacity: 0;
    animation: slideIn 0.5s forwards;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9em;
    transition: all 0.3s;
    display: flex;
    align-items: center;
}

.nav-links a i {
    margin-right: 10px;
    color: var(--accent-color);
}

.nav-links a:hover {
    color: var(--accent-color);
    transform: translateX(10px);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.hamburger {
    width: 25px;
    height: 3px;
    background: var(--accent-color);
    position: relative;
    transition: all 0.3s;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 25px;
    height: 3px;
    background: var(--accent-color);
    transition: all 0.3s;
}

.hamburger::before { top: -8px; }
.hamburger::after { top: 8px; }

/* Overlay */
.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 90;
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: 40px;
    background: linear-gradient(45deg, var(--primary-bg) 0%, #1a1f29 100%);
    position: relative;
    z-index: 1;
}

/* Animations */
@keyframes slideIn {
    from {
        transform: translateX(-20px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .menu-toggle {
        display: block;
    }

    .menu-toggle.active .hamburger {
        background: transparent;
    }

    .menu-toggle.active .hamburger::before {
        transform: rotate(45deg);
        top: 0;
    }

    .menu-toggle.active .hamburger::after {
        transform: rotate(-45deg);
        top: 0;
    }

    .overlay.active {
        display: block;
    }

    .main-content {
        margin-left: 0;
        padding: 20px;
    }
}