/* ============================================
   INFOCER - Header & Navigation
   Header, logo, navigation menu, mobile toggle
   ============================================ */

/* ============================================
   Header & Logo
   ============================================ */

header {
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
    background: var(--white);
}

.header-top {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    background: var(--white);
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 90px;
    width: auto;
}

/* ============================================
   Navigation
   ============================================ */

nav {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-dark) 100%);
    border-top: 1px solid rgba(0,0,0,0.05);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.nav-container > ul {
    list-style: none;
    display: flex;
    gap: 0;
    flex-wrap: wrap;
    padding: 0.5rem 0;
}

.nav-container > ul > li {
    position: relative;
    margin-right: 2rem;
}

.nav-container > ul > li:last-child {
    margin-right: 0;
}

nav a {
    color: var(--white);
    font-weight: 500;
    padding: 0.8rem 1rem;
    display: block;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.nav-container > ul > li > a:hover {
    opacity: 0.8;
    transform: translateY(-2px);
}

.nav-container > ul > li > a.nav-active {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    opacity: 1;
}

/* ============================================
   Dropdown Menus
   ============================================ */

/* Dropdown - primo livello */
.nav-container > ul > li > ul {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--primary-dark);
    min-width: 280px;
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 0.5rem 0;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    z-index: 100;
    list-style: none;
}

/* Dropdown - secondo livello (sottomenu dei sottomenu) */
.nav-container > ul > li > ul > li {
    position: relative;
}

.nav-container > ul > li > ul > li > ul {
    position: absolute;
    left: 100%;
    top: 0;
    background: var(--primary-dark);
    min-width: 280px;
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 0.5rem 0;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    z-index: 101;
    list-style: none;
}

/* Mostra dropdown al hover */
.nav-container > ul > li:hover > ul {
    display: flex;
}

.nav-container > ul > li > ul > li:hover > ul {
    display: flex;
}

/* Stile link nei dropdown */
.nav-container ul ul a {
    padding: 0.8rem 1.2rem;
    font-size: 0.95rem;
    white-space: normal;
}

.nav-container ul ul a:hover {
    background: rgba(255,255,255,0.1);
}

/* ============================================
   Mobile Menu Toggle
   ============================================ */

.mobile-toggle {
    display: none;
    background: transparent;
    border: 2px solid var(--primary-dark);
    color: var(--primary-dark);
    font-size: 1.5rem;
    padding: 0.5rem 1rem;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.mobile-toggle:hover {
    background: var(--primary-light);
    color: var(--white);
    border-color: var(--primary-light);
}