/* Side Panel Styles */
.side-panel {
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100vh;
    background: #fff;
    box-shadow: -2px 0 10px rgba(0,0,0,0.1);
    transition: right 0.3s ease;
    z-index: 1200;
    padding: 2rem;
}

.side-panel.active,
.side-panel.open {
    right: 0;
}

.close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #333;
    z-index: 1300;
}

.side-nav {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

.side-nav a {
    color: #333;
    text-decoration: none;
    font-size: 1.1rem;
    padding: 0.5rem 0;
    transition: color 0.3s;
}

.side-nav a:hover {
    color: #666;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
    z-index: 1100;
    cursor: pointer;
}

.overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Portfolio Navigation Item */
.portfolio-nav-item {
    position: relative;
}

.side-nav-toggle {
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    font-size: 1.1rem;
    padding: 0.5rem 0;
    cursor: pointer;
    color: #333;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.side-nav-toggle:hover {
    color: #666;
}

.side-nav-sublinks {
    display: none;
    flex-direction: column;
    padding-left: 1rem;
    margin-top: 0.5rem;
}

.side-nav-sublinks a {
    font-size: 1rem;
    padding: 0.4rem 0;
}

.side-nav-sublinks a:hover {
    color: #666;
}

/* Dark Mode Styles */
body.dark-mode .side-panel {
    background: #333;
}

body.dark-mode .side-nav a,
body.dark-mode .side-nav-toggle,
body.dark-mode .close-btn {
    color: #fff;
}

body.dark-mode .side-nav a:hover,
body.dark-mode .side-nav-toggle:hover {
    color: #ccc;
}

/* Mobile Styles */
@media (max-width: 768px) {
    .side-panel {
        width: 280px;
    }
}