/* ===== UNIVERSAL NAVIGATION SYSTEM ===== */

/* ===== DESKTOP NAVIGATION ===== */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: #fff;
    border-bottom: 1px solid #ddd;
    z-index: 1000;
    padding: var(--space-sm) 0;
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: clamp(1200px, 90vw, 1600px);
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: clamp(0.5rem, 2vw, 2rem);
}

.nav-menu {
    display: flex;
    list-style: none;
    flex-wrap: wrap;
    gap: clamp(0.5rem, 1.5vw, 1.5rem);
    margin: 0;
    padding: 0;
    justify-content: center;
    flex: 1;
}

.nav-menu a {
    text-decoration: none;
    color: #222;
    font-size: clamp(1rem, 1.2vw, 1.25rem);
    letter-spacing: 0.02em;
    transition: all 0.3s ease;
    white-space: nowrap;
    cursor: pointer;
    font-weight: 500;
    padding: clamp(0.4rem, 0.8vw, 0.75rem) clamp(0.6rem, 1vw, 1rem);
    border-radius: 4px;
    position: relative;
}

.nav-menu a:hover {
    background: #f5f5f5;
}

.nav-menu a.active {
    font-weight: 600;
    background: #f0f0f0;
    color: #222;
    border: 1px solid #ddd;
}

/* ===== DESKTOP DROPDOWNS - FULL WIDTH ===== */
.nav-item-dropdown {
    position: static;
}

.nav-item-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: 100%;
    transform: translateY(-10px);
    background: #fff;
    border-top: 1px solid #ddd;
    border-bottom: 1px solid #ddd;
    border-left: none;
    border-right: none;
    border-radius: 0;
    padding: var(--space-lg) 0;
    min-width: auto;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1001;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.dropdown-content {
    max-width: clamp(1200px, 90vw, 1600px);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.dropdown-menu a {
    display: block;
    padding: var(--space-sm) var(--space-md);
    margin: 0;
    border-radius: 0;
    font-size: var(--text-md);
    color: #222;
    border-bottom: 1px solid #f0f0f0;
    text-align: left;
}

.dropdown-menu a:hover {
    background: #f5f5f5;
    color: #222;
}

.dropdown-menu a:last-child {
    border-bottom: none;
}

/* ===== MOBILE MENU TOGGLE ===== */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: clamp(28px, 3vw, 35px);
    height: clamp(28px, 3vw, 35px);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1002;
    position: relative;
}

.hamburger-line {
    width: clamp(22px, 2.5vw, 28px);
    height: clamp(2px, 0.2vw, 3px);
    background: #222;
    margin: clamp(2px, 0.3vw, 4px) 0;
    transition: all 0.3s ease;
    transform-origin: center;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(clamp(5px, 0.6vw, 7px), clamp(5px, 0.6vw, 7px));
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(clamp(5px, 0.6vw, 7px), clamp(-5px, -0.6vw, -7px));
}

/* ===== COMPACT MOBILE 2-STEP POPUP SYSTEM ===== */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #fff;
    backdrop-filter: blur(20px);
    z-index: 1001;
    display: none;
    flex-direction: column;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-menu-overlay.active {
    display: flex;
    opacity: 1;
}

.mobile-main-menu {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--space-lg) var(--space-md);
    padding-top: clamp(60px, 15vw, 100px);
}

.mobile-nav-menu {
    list-style: none;
    text-align: left;
    padding: 0;
    margin: 0;
    width: 100%;
}

.mobile-nav-menu li {
    margin: clamp(0.5rem, 1.5vw, 1rem) 0;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

.mobile-menu-overlay.active .mobile-nav-menu li {
    opacity: 1;
    transform: translateY(0);
}

.mobile-menu-overlay.active .mobile-nav-menu li:nth-child(1) { transition-delay: 0.05s; }
.mobile-menu-overlay.active .mobile-nav-menu li:nth-child(2) { transition-delay: 0.1s; }
.mobile-menu-overlay.active .mobile-nav-menu li:nth-child(3) { transition-delay: 0.15s; }
.mobile-menu-overlay.active .mobile-nav-menu li:nth-child(4) { transition-delay: 0.2s; }
.mobile-menu-overlay.active .mobile-nav-menu li:nth-child(5) { transition-delay: 0.25s; }
.mobile-menu-overlay.active .mobile-nav-menu li:nth-child(6) { transition-delay: 0.3s; }
.mobile-menu-overlay.active .mobile-nav-menu li:nth-child(7) { transition-delay: 0.35s; }
.mobile-menu-overlay.active .mobile-nav-menu li:nth-child(8) { transition-delay: 0.4s; }

.mobile-nav-menu a {
    text-decoration: none;
    color: #222;
    font-size: clamp(1.1rem, 3.5vw, 1.5rem);
    font-weight: 400;
    padding: clamp(0.4rem, 1.2vw, 0.8rem) 0;
    display: block;
    transition: all 0.3s ease;
    border-bottom: 1px solid #f0f0f0;
    text-align: left;
}

.mobile-nav-menu a:hover,
.mobile-nav-menu a.active {
    background: #f5f5f5;
    color: #222;
}

.mobile-nav-menu a.has-submenu::after {
    content: "";
}

.mobile-submenu {
    width: 100%;
    height: 100%;
    display: none;
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--space-lg) var(--space-md);
    padding-top: clamp(60px, 15vw, 100px);
}

.mobile-submenu.active {
    display: flex;
}

.submenu-header {
    margin-bottom: var(--space-md);
}

.submenu-back {
    background: none;
    border: none;
    color: #222;
    font-size: clamp(1rem, 3vw, 1.4rem);
    padding: var(--space-xs) 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    transition: all 0.3s ease;
}

.submenu-back:hover {
    color: #666;
}

.submenu-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.submenu-title {
    font-size: clamp(1.3rem, 4vw, 1.8rem);
    font-weight: 400;
    color: #222;
    margin-bottom: var(--space-lg);
    text-align: left;
    line-height: 1.2;
}

.submenu-items {
    list-style: none;
    padding: 0;
    margin: 0;
}

.submenu-items li {
    margin: clamp(0.8rem, 2vw, 1.2rem) 0;
}

.submenu-items a {
    text-decoration: none;
    color: #222;
    font-size: clamp(1rem, 3vw, 1.4rem);
    font-weight: 400;
    padding: clamp(0.4rem, 1.2vw, 0.8rem) 0;
    display: block;
    transition: all 0.3s ease;
    border-bottom: 1px solid #f0f0f0;
    text-align: left;
    line-height: 1.3;
}

.submenu-items a:hover {
    background: #f5f5f5;
    color: #222;
}

.mobile-nav-menu a:last-child,
.submenu-items a:last-child {
    border-bottom: none;
}

/* ===== MOBILE RESPONSIVE ===== */
@media (max-width: 768px) {
    .nav-menu {
        display: none !important;
    }
    
    .mobile-menu-toggle {
        display: flex !important;
    }
    
    .nav-container {
        flex-direction: row;
        gap: 1rem;
        padding: 0.5rem var(--space-sm);
    }
}

@media (max-width: 480px) {
    .mobile-main-menu,
    .mobile-submenu {
        padding: var(--space-md);
        padding-top: clamp(50px, 12vw, 80px);
    }
    
    .mobile-nav-menu a {
        font-size: clamp(1rem, 4vw, 1.3rem);
    }
    
    .submenu-title {
        font-size: clamp(1.2rem, 5vw, 1.6rem);
    }
    
    .submenu-items a {
        font-size: clamp(0.9rem, 4vw, 1.2rem);
    }
}

@media (max-width: 360px) {
    .mobile-main-menu,
    .mobile-submenu {
        padding: var(--space-sm);
        padding-top: clamp(40px, 10vw, 60px);
    }
}