/**
 * =====================================================
 * NAVBAR - Gli Amici di Colombo Design System
 * =====================================================
 * 
 * Modern navbar with glass-morphism effect on scroll,
 * gold accent hovers, and premium CTA button.
 */

/* ===================================================
   NAVBAR BASE STYLES
   =================================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    background: transparent;
    transition: all var(--duration-normal) var(--ease-out);
    z-index: var(--z-navbar);
    display: flex;
    align-items: center;
    padding: 0 var(--space-8);
}

/* Glass-morphism effect on scroll */
.navbar.scrolled {
    background: var(--glass-bg-strong);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--shadow-md);
    height: calc(var(--navbar-height) - 10px);
}

/* Container */
.navbar .container {
    max-width: var(--container-max);
    width: 100%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* ===================================================
   LOGO / BRAND
   =================================================== */

.navbar-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: var(--space-3);
    transition: transform var(--duration-fast) var(--ease-out);
}

.navbar-brand:hover {
    transform: scale(1.02);
}

.navbar-brand img {
    height: 50px;
    width: auto;
    transition: var(--transition-normal);
}

.navbar.scrolled .navbar-brand img {
    height: 42px;
}

.brand-text {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    transition: color var(--duration-normal) var(--ease-out);
}

/* On hero section (transparent navbar) */
.navbar:not(.scrolled) .brand-text {
    color: var(--text-inverse);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* ===================================================
   NAVIGATION MENU
   =================================================== */

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

/* ===================================================
   NAV LINKS
   =================================================== */

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-3);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-default);
    transition: all var(--duration-normal) var(--ease-out);
    position: relative;
    white-space: nowrap;
}

/* On transparent navbar (hero section) */
.navbar:not(.scrolled) .nav-link {
    color: var(--text-inverse);
}

/* Underline animation */
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: var(--space-3);
    right: var(--space-3);
    height: 2px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--duration-normal) var(--ease-out);
    border-radius: var(--radius-full);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-accent);
}

.navbar:not(.scrolled) .nav-link:hover,
.navbar:not(.scrolled) .nav-link.active {
    color: var(--color-accent-light);
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* ===================================================
   CTA BUTTON (Dona Ora)
   =================================================== */

.navbar-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-5);
    background: var(--gradient-accent-warm);
    color: var(--color-primary-dark) !important;
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    text-decoration: none;
    border-radius: var(--radius-full);
    border: none;
    box-shadow: 0 4px 16px rgba(212, 168, 83, 0.3);
    transition: all var(--duration-normal) var(--ease-out);
    margin-left: var(--space-4);
    position: relative;
    overflow: hidden;
}

.navbar-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-out);
}

.navbar-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(212, 168, 83, 0.4);
    color: var(--color-primary-dark) !important;
}

.navbar-cta:hover::before {
    opacity: 1;
}

.navbar-cta:active {
    transform: translateY(0);
    box-shadow: 0 4px 12px rgba(212, 168, 83, 0.3);
}

/* CTA on transparent navbar */
.navbar:not(.scrolled) .navbar-cta {
    background: var(--gradient-accent-warm);
    color: var(--color-primary-dark) !important;
}

/* ===================================================
   DROPDOWN MENU
   =================================================== */

.nav-item.dropdown {
    position: relative;
}

.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    cursor: pointer;
}

.dropdown-toggle .fas,
.dropdown-toggle .fa-chevron-down {
    font-size: 0.7em;
    transition: transform var(--duration-normal) var(--ease-out);
}

.nav-item.dropdown.show .dropdown-toggle .fas,
.nav-item.dropdown.show .dropdown-toggle .fa-chevron-down {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + var(--space-2));
    left: 50%;
    transform: translateX(-50%);
    min-width: 220px;
    background: var(--surface-elevated);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--space-2) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(10px);
    transition: all var(--duration-normal) var(--ease-out);
    z-index: var(--z-dropdown);
    list-style: none;
}

.nav-item.dropdown.show .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    color: var(--text-primary);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: all var(--duration-fast) var(--ease-out);
}

.dropdown-item i {
    color: var(--color-accent);
    width: 16px;
    text-align: center;
}

.dropdown-item:hover {
    background: var(--bg-secondary);
    color: var(--color-primary);
    padding-left: calc(var(--space-4) + 4px);
}

.dropdown-item:hover i {
    color: var(--color-primary);
}

/* ===================================================
   HAMBURGER MENU
   =================================================== */

.hamburger {
    display: none;
    cursor: pointer;
    border: none;
    background: none;
    padding: var(--space-2);
    position: relative;
    z-index: calc(var(--z-navbar) + 1);
    color: var(--text-primary);
}

/* Ensure hamburger is always visible - override transparent navbar rules when menu is open */
.hamburger.active,
.nav-menu.active ~ .hamburger,
.hamburger.active .hamburger-inner,
.hamburger.active .hamburger-inner::before,
.hamburger.active .hamburger-inner::after {
    color: var(--text-primary);
}

.hamburger-box {
    width: 26px;
    height: 20px;
    position: relative;
    display: inline-block;
}

.hamburger-inner,
.hamburger-inner::before,
.hamburger-inner::after {
    width: 26px;
    height: 2px;
    background-color: var(--text-primary);
    position: absolute;
    transition: all var(--duration-normal) var(--ease-out);
    border-radius: var(--radius-full);
}

.navbar:not(.scrolled) .hamburger-inner,
.navbar:not(.scrolled) .hamburger-inner::before,
.navbar:not(.scrolled) .hamburger-inner::after {
    background-color: var(--text-inverse);
}

.hamburger-inner {
    top: 50%;
    transform: translateY(-50%);
}

.hamburger-inner::before {
    content: '';
    top: -8px;
}

.hamburger-inner::after {
    content: '';
    bottom: -8px;
}

/* Hamburger Active State */
.hamburger.active {
    z-index: calc(var(--z-navbar) + 2);
}

.hamburger.active .hamburger-inner {
    background-color: transparent;
}

.hamburger.active .hamburger-inner::before {
    top: 0;
    transform: rotate(45deg);
    background-color: var(--text-primary);
}

.hamburger.active .hamburger-inner::after {
    bottom: 0;
    transform: rotate(-45deg);
    background-color: var(--text-primary);
}

/* Ensure hamburger is always visible when menu is active */
@media (max-width: 900px) {
    .nav-menu.active ~ .hamburger .hamburger-inner,
    .nav-menu.active ~ .hamburger .hamburger-inner::before,
    .nav-menu.active ~ .hamburger .hamburger-inner::after {
        background-color: var(--text-primary);
    }
}

/* ===================================================
   RESPONSIVE - TABLET & MOBILE
   =================================================== */

@media (max-width: 1100px) {
    .nav-menu {
        gap: 0;
    }
    
    .nav-link {
        padding: var(--space-2);
        font-size: var(--text-xs);
    }
    
    .navbar-cta {
        padding: var(--space-2) var(--space-4);
        font-size: var(--text-xs);
        margin-left: var(--space-2);
    }
    
    .brand-text {
        font-size: var(--text-base);
    }
}

@media (max-width: 900px) {
    .navbar {
        height: var(--navbar-height-mobile);
        padding: 0 var(--space-4);
    }
    
    .navbar.scrolled {
        height: var(--navbar-height-mobile);
        background: var(--glass-bg-strong);
        backdrop-filter: var(--glass-blur);
        -webkit-backdrop-filter: var(--glass-blur);
        border-bottom: 1px solid var(--glass-border);
        box-shadow: var(--shadow-sm);
    }
    
    /* When mobile menu is open, ensure navbar is visible */
    .navbar.menu-open {
        background: var(--glass-bg-strong);
        backdrop-filter: var(--glass-blur);
        -webkit-backdrop-filter: var(--glass-blur);
        border-bottom: 1px solid var(--border-light);
        box-shadow: var(--shadow-md);
        z-index: calc(var(--z-navbar) + 5);
    }
    
    .navbar.menu-open .hamburger {
        z-index: calc(var(--z-navbar) + 10);
        position: relative;
    }
    
    .navbar.menu-open .navbar-brand {
        z-index: calc(var(--z-navbar) + 10);
        position: relative;
    }
    
    .navbar.menu-open .brand-text {
        color: var(--text-primary) !important;
        text-shadow: none;
    }
    
    /* Mobile menu should be behind navbar but above content */
    .navbar.menu-open .nav-menu {
        z-index: calc(var(--z-navbar) + 4);
    }
    
    .hamburger {
        display: block;
    }
    
    /* Ensure hamburger is visible on scrolled navbar */
    .navbar.scrolled .hamburger-inner,
    .navbar.scrolled .hamburger-inner::before,
    .navbar.scrolled .hamburger-inner::after {
        background-color: var(--text-primary);
    }
    
    /* Ensure hamburger is visible when menu is open */
    .hamburger.active .hamburger-inner::before,
    .hamburger.active .hamburger-inner::after {
        background-color: var(--text-primary);
    }
    
    .navbar-brand img {
        height: 38px;
    }
    
    .brand-text {
        font-size: var(--text-sm);
    }
    
    /* Mobile Menu - Fixed visibility issues */
    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(250, 248, 245, 0.98) 100%);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-left: 1px solid var(--border-light);
        box-shadow: -4px 0 24px rgba(30, 58, 95, 0.15);
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        gap: 0;
        padding-top: calc(var(--navbar-height-mobile) + var(--space-4));
        padding-bottom: var(--space-8);
        padding-left: var(--space-4);
        padding-right: var(--space-4);
        transform: translateX(100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--duration-slow) var(--ease-out);
        z-index: calc(var(--z-navbar) - 1);
        overflow-y: auto;
        overflow-x: hidden;
        -webkit-overflow-scrolling: touch;
        /* Ensure all items are visible */
        min-height: 100vh;
        max-height: 100vh;
    }
    
    .nav-menu.active {
        transform: translateX(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-item {
        width: 100%;
        text-align: left;
        border-bottom: 1px solid var(--border-light);
        display: block !important;
        opacity: 1 !important;
        visibility: visible !important;
        height: auto;
        min-height: auto;
    }
    
    .nav-item:last-child {
        border-bottom: none;
    }
    
    /* Ensure dropdown items are visible */
    .nav-item.dropdown {
        display: block !important;
        width: 100%;
    }
    
    /* Ensure CTA is visible */
    .nav-item .navbar-cta {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .nav-link {
        justify-content: center !important;
        text-align: center !important;
        font-size: var(--text-sm, 0.875rem) !important;
        font-weight: var(--font-medium) !important;
        padding: var(--space-4) var(--space-3) !important;
        color: var(--text-primary) !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        border-radius: var(--radius-lg) !important;
        margin-bottom: var(--space-1) !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        transition: all var(--duration-fast) var(--ease-out) !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        white-space: normal !important;
        overflow: visible !important;
        text-overflow: clip !important;
        word-wrap: break-word !important;
        word-break: break-word !important;
        position: relative !important;
        left: auto !important;
        right: auto !important;
        transform: none !important;
        hyphens: auto !important;
    }
    
    .nav-link:hover,
    .nav-link.active {
        background: var(--bg-secondary) !important;
        color: var(--color-primary) !important;
        transform: none !important;
        left: auto !important;
        right: auto !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
    }
    
    .nav-link::after {
        display: none !important; /* Hide underline on mobile */
    }
    
    /* Ensure nav-link icons don't cause overflow */
    .nav-link i {
        margin-right: var(--space-2);
        flex-shrink: 0;
        display: inline-block;
    }
    
    /* Ensure all nav items are consistent in size */
    .nav-item {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        margin: 0 !important;
        padding: 0 !important;
        overflow: visible !important;
    }
    
    /* Prevent nav menu from overflowing */
    .nav-menu {
        max-width: 100vw !important;
        overflow-x: hidden !important;
        overflow-y: auto !important;
        box-sizing: border-box !important;
    }
    
    /* Ensure all nav items are visible */
    .nav-item.dropdown {
        display: block !important;
        width: 100%;
        position: relative;
    }
    
    .nav-item.dropdown {
        width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
        position: relative !important;
        display: block !important;
    }
    
    .dropdown-toggle {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: var(--space-4) var(--space-5) !important;
        padding-right: calc(var(--space-5) + 24px) !important; /* Space for icon */
        color: var(--text-primary) !important;
        font-weight: var(--font-medium) !important;
        font-size: var(--text-base) !important;
        display: block !important;
        background: transparent !important;
        border: none !important;
        border-radius: var(--radius-lg) !important;
        cursor: pointer !important;
        transition: all var(--duration-fast) var(--ease-out) !important;
        text-align: center !important;
        position: relative !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        left: auto !important;
        right: auto !important;
        transform: none !important;
        line-height: 1.5 !important;
    }
    
    /* Position icon absolutely on the right so it doesn't affect text centering */
    .dropdown-toggle .fa-chevron-down {
        position: absolute !important;
        right: var(--space-5) !important;
        top: 50% !important;
        transform: translateY(-50%) !important;
        font-size: 0.7em !important;
        transition: transform var(--duration-normal) var(--ease-out) !important;
        margin-left: 0 !important;
        flex-shrink: 0 !important;
        width: auto !important;
        pointer-events: none !important;
        opacity: 1 !important;
        display: inline-block !important;
    }
    
    /* Rotate icon when dropdown is open */
    .nav-item.dropdown.show .dropdown-toggle .fa-chevron-down {
        transform: translateY(-50%) rotate(180deg) !important;
    }
    
    /* Style dropdown toggle when hovered or open - ensure no shifting */
    .dropdown-toggle:hover,
    .dropdown-toggle:focus,
    .nav-item.dropdown.show .dropdown-toggle {
        background: var(--bg-secondary) !important;
        color: var(--color-primary) !important;
        transform: none !important;
        left: auto !important;
        right: auto !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding-left: var(--space-5) !important;
        padding-right: calc(var(--space-5) + 24px) !important;
        text-align: center !important;
    }
    
    .nav-item.dropdown.show .dropdown-toggle .fa-chevron-down {
        transform: rotate(180deg);
    }
    
    .navbar-cta {
        margin: var(--space-4) auto 0;
        width: calc(100% - var(--space-8));
        max-width: 320px;
        padding: var(--space-4) var(--space-6);
        font-size: var(--text-base);
        font-weight: var(--font-semibold);
        justify-content: center;
        display: flex;
    }
    
    /* Mobile Dropdown - Fixed visibility and centering */
    .dropdown-menu {
        position: static !important;
        transform: none !important;
        box-shadow: none;
        border: none;
        background: var(--bg-secondary);
        border-radius: var(--radius-lg);
        max-height: 0;
        overflow: hidden;
        opacity: 1;
        visibility: visible;
        padding: 0;
        margin: var(--space-2) 0 var(--space-4) 0;
        transition: max-height var(--duration-normal) var(--ease-out);
        width: 100%;
        max-width: 100%;
        left: auto !important;
        right: auto !important;
        top: auto !important;
        bottom: auto !important;
        display: block;
        list-style: none;
    }
    
    .nav-item.dropdown.show .dropdown-menu {
        max-height: 400px;
        padding: var(--space-3);
        border: 1px solid var(--border-light);
        margin-left: 0;
        margin-right: 0;
        transform: none !important;
    }
    
    .dropdown-menu li {
        width: 100%;
        margin: 0;
        padding: 0;
        list-style: none;
    }
    
    .dropdown-item {
        justify-content: center !important;
        text-align: center !important;
        padding: var(--space-3) var(--space-4);
        border-radius: var(--radius-default);
        color: var(--text-secondary);
        font-size: var(--text-sm);
        display: flex !important;
        align-items: center;
        justify-content: center !important;
        gap: var(--space-3);
        margin: 0;
        width: 100%;
        box-sizing: border-box;
        position: relative;
        left: auto !important;
        right: auto !important;
    }
    
    .dropdown-item:hover {
        background: rgba(30, 58, 95, 0.05);
        color: var(--color-primary);
        transform: none !important;
    }
    
    .dropdown-item i {
        color: var(--color-accent);
        width: 18px;
        text-align: center;
        font-size: var(--text-sm);
        flex-shrink: 0;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 0 var(--space-3);
    }
    
    .navbar-brand img {
        height: 32px;
    }
    
    .brand-text {
        font-size: var(--text-xs);
    }
    
    .nav-link {
        font-size: var(--text-xs, 0.75rem) !important;
        padding: var(--space-3) var(--space-2) !important;
        line-height: 1.4 !important;
    }
    
    .dropdown-toggle {
        font-size: var(--text-xs, 0.75rem) !important;
        padding: var(--space-3) var(--space-3) !important;
        padding-right: calc(var(--space-3) + 20px) !important;
    }
    
    .dropdown-menu {
        width: 100% !important;
        max-width: 100% !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
    }
    
    .dropdown-item {
        font-size: var(--text-xs, 0.75rem) !important;
        padding: var(--space-2) var(--space-3) !important;
    }
    
    .navbar-cta {
        font-size: var(--text-sm, 0.875rem) !important;
        padding: var(--space-3) var(--space-5) !important;
    }
}

/* ===================================================
   MAIN CONTENT SPACING
   =================================================== */

#main-content {
    padding-top: var(--navbar-height);
    min-height: calc(100vh - var(--navbar-height));
}

@media (max-width: 900px) {
    #main-content {
        padding-top: var(--navbar-height-mobile);
        min-height: calc(100vh - var(--navbar-height-mobile));
    }
}

/* ===================================================
   ACCESSIBILITY
   =================================================== */

.nav-link:focus-visible,
.navbar-cta:focus-visible,
.hamburger:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    .navbar,
    .nav-link,
    .navbar-cta,
    .dropdown-menu,
    .hamburger-inner,
    .hamburger-inner::before,
    .hamburger-inner::after,
    .nav-menu {
        transition: none;
    }
}