/* Navbar verticale */
 .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 280px;
    height: 100vh;
    background: var(--dark);
    border-right: 1px solid var(--dark-gray);
    z-index: 1000;
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    box-shadow: 5px 0 15px rgba(0, 0, 0, 0.3);
}

.light-mode .sidebar {
    background: var(--card-light);
    border-right: 1px solid var(--border-light);
    box-shadow: 5px 0 15px rgba(0, 0, 0, 0.1);
}

.sidebar-header {
    padding: 25px;
    border-bottom: 1px solid var(--dark-gray);
    text-align: center;
    background: rgba(0, 217, 255, 0.05);
}

.light-mode .sidebar-header {
    border-bottom: 1px solid var(--border-light);
    background: rgba(0, 217, 255, 0.03);
}

.sidebar-header h1 {
    color: var(--primary);
    font-size: 1.5rem;
    margin: 0;
    font-weight: 600;
    letter-spacing: 1px;
}

.sidebar-nav {
    padding: 20px 0;
    flex: 1;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 15px 25px;
    color: var(--light);
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
    margin: 5px 15px;
    border-radius: 8px;
    font-weight: 500;
}

.light-mode .nav-item {
    color: var(--text-dark);
}

.nav-item:hover {
    background: rgba(0, 217, 255, 0.1);
    color: var(--primary);
    transform: translateX(5px);
}

.light-mode .nav-item:hover {
    background: rgba(0, 217, 255, 0.05);
}

.nav-item.active {
    background: rgba(0, 217, 255, 0.2);
    color: var(--primary);
    border-left-color: var(--primary);
    font-weight: 600;
}

.light-mode .nav-item.active {
    background: rgba(0, 217, 255, 0.1);
}

.nav-item i {
    margin-right: 15px;
    width: 20px;
    text-align: center;
    font-size: 1.1rem;
}

.contact-section {
    border-top: 1px solid var(--dark-gray);
    padding: 20px;
    background: rgba(0, 0, 0, 0.2);
}

.light-mode .contact-section {
    border-top: 1px solid var(--border-light);
    background: rgba(0, 0, 0, 0.03);
}

.contact-info {
    color: var(--gray);
    font-size: 0.9rem;
}

.light-mode .contact-info {
    color: #64748b;
}

.contact-info h4 {
    color: var(--primary);
    margin-bottom: 15px;
    font-size: 1rem;
}

.contact-info p {
    margin: 10px 0;
    display: flex;
    align-items: center;
    gap: 12px;
}

.contact-info i {
    color: var(--primary);
    width: 20px;
    font-size: 0.9rem;
}

/* Header mobile */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: var(--dark);
    border-bottom: 1px solid var(--dark-gray);
    z-index: 1001;
    padding: 0 20px;
    align-items: center;
    justify-content: flex-start;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.light-mode .mobile-header {
    background: var(--card-light);
    border-bottom: 1px solid var(--border-light);
}

.hamburger {
    background: none;
    border: none;
    color: var(--primary);
    font-size: 1.5rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
    margin-right: 15px;
}

.hamburger:hover {
    background: rgba(0, 217, 255, 0.1);
}

.mobile-title {
    color: var(--primary);
    font-size: 1.2rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}


.disp {
    visibility: hidden;
    display:none;
}