/* ========================================
   Header Styles - Enhanced & Optimized
   ======================================== */

/* Top Bar */
.top-bar {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: 12px 0;
    font-size: 13px;
    border-bottom: 2px solid var(--color-secondary);
}

.top-info {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.top-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--color-white);
    text-decoration: none;
    transition: all var(--transition-base);
    font-weight: 500;
}

.top-link:hover {
    color: var(--color-secondary);
    transform: translateX(3px);
}

.top-link svg {
    flex-shrink: 0;
    opacity: 0.95;
    transition: var(--transition-base);
}

.top-link:hover svg {
    opacity: 1;
    transform: scale(1.15);
}

/* Main Navbar */
.navbar {
    background: rgba(255, 251, 247, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
    padding: 20px 0;
    transition: all var(--transition-base);
    z-index: var(--z-sticky);
    border-bottom: 1px solid rgba(123, 40, 105, 0.08);
}

.navbar.scrolled {
    padding: 14px 0;
    box-shadow: var(--shadow-lg);
    background: rgba(255, 251, 247, 1);
}

/* Navbar Container */
.navbar .container-fluid {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Brand Container */
.navbar-brand {
    padding: 0;
    margin-right: 50px;
    flex-shrink: 1;
    min-width: 0;
}

.brand-container {
    display: flex;
    align-items: center;
    gap: 18px;
    transition: var(--transition-base);
}

.brand-container:hover {
    transform: translateX(4px);
}

.brand-logos {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.logo-img {
    height: 56px;
    width: auto;
    transition: var(--transition-base);
    filter: drop-shadow(var(--shadow-sm));
}

.logo-img:hover {
    transform: scale(1.05);
}

.brand-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
    flex: 1;
}

.brand-title {
    font-family: var(--font-secondary);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
    margin: 0;
    line-height: 1.2;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.3px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.brand-subtitle {
    font-size: 11px;
    color: var(--color-gray-600);
    margin: 0;
    font-weight: 600;
    letter-spacing: 1.8px;
    text-transform: uppercase;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Hamburger Toggle */
.custom-toggler {
    border: none;
    padding: 10px;
    background: transparent;
    cursor: pointer;
    width: 44px;
    height: 44px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.custom-toggler:focus {
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

.custom-toggler:hover {
    background: rgba(123, 40, 105, 0.05);
}

.toggler-line {
    width: 30px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 3px;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.custom-toggler[aria-expanded="true"] .toggler-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
    background: var(--color-accent);
}

.custom-toggler[aria-expanded="true"] .toggler-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.custom-toggler[aria-expanded="true"] .toggler-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
    background: var(--color-accent);
}

/* Nav Links */
.navbar-nav {
    align-items: center;
    gap: 8px;
}

.nav-link {
    color: var(--color-primary) !important;
    font-weight: 600;
    font-size: 15px;
    padding: 12px 20px !important;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    position: relative;
    white-space: nowrap;
    letter-spacing: 0.2px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link:focus::after {
    width: 50%;
}

.nav-link.active::after {
    display: none;
}

/* Contact Button */
.btn-contact {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent)) !important;
    color: var(--color-white) !important;
    padding: 12px 28px !important;
    border-radius: var(--radius-full);
    font-weight: 700;
    box-shadow: var(--shadow-md);
    margin-left: 12px;
    border: none;
}

.btn-contact:hover {
    background: linear-gradient(135deg, var(--color-accent), var(--color-primary)) !important;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-contact::after {
    display: none;
}

/* Dropdown Menu */
.dropdown-menu {
    background: var(--color-white);
    border: none;
    box-shadow: var(--shadow-xl);
    border-radius: var(--radius-lg);
    padding: 14px;
    margin-top: 10px;
    min-width: 260px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-top: 3px solid var(--color-accent);
}

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

.dropdown-item {
    color: var(--color-primary);
    padding: 12px 18px;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    font-size: 15px;
    font-weight: 500;
    margin-bottom: 4px;
    position: relative;
}

.dropdown-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 60%;
    background: var(--color-accent);
    transition: width var(--transition-fast);
    border-radius: 0 4px 4px 0;
}

.dropdown-item:hover {
    background: rgba(123, 40, 105, 0.04);
    color: var(--color-primary);
    transform: translateX(8px);
}

.dropdown-item:hover::before {
    width: 4px;
}

.dropdown-divider {
    margin: 12px 0;
    background: var(--color-gray-200);
    height: 1px;
    border: none;
    opacity: 0.6;
}

/* Submenu Arrow */
.has-submenu {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-right: 36px !important;
}

.submenu-indicator {
    font-weight: 700;
    font-size: 18px;
    color: var(--color-secondary);
    transition: transform var(--transition-base), color var(--transition-base);
    margin-left: 8px;
    position: absolute;
    right: 18px;
}

.dropdown-submenu.active .submenu-indicator {
    transform: rotate(90deg);
    color: var(--color-accent);
}

/* Submenu */
.dropdown-submenu {
    position: relative;
}

.dropdown-submenu .dropdown-menu.submenu {
    top: 0;
    left: 100%;
    margin-top: 0;
    margin-left: 10px;
}

/* Submenu right-aligned (prevents overflow) */
.dropdown-submenu .dropdown-menu.submenu.align-right {
    left: auto;
    right: 100%;
    margin-left: 0;
    margin-right: 10px;
}

.dropdown-submenu:hover > .dropdown-menu.submenu {
    display: block;
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

/* Scroll Progress Bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-secondary));
    width: 0%;
    z-index: calc(var(--z-sticky) + 10);
    transition: width 0.05s linear;
    box-shadow: 0 0 15px rgba(233, 30, 99, 0.5);
}

/* ========================================
   Mobile Responsive - Optimized
   ======================================== */

@media (max-width: 991px) {
    .top-bar { padding: 10px 0; }
    .top-info { gap: 16px; justify-content: center; }
    
    .navbar-nav {
        margin-top: 24px;
        gap: 0;
        width: 100%;
        max-height: calc(100vh - 200px);
        overflow-y: auto;
        overflow-x: hidden;
        padding-bottom: 24px;
        -webkit-overflow-scrolling: touch;
    }

    .nav-item { width: 100%; }
    .nav-link {
        padding: 16px 20px !important;
        font-size: 16px;
        border-radius: 0;
        font-weight: 600;
    }

    .nav-link::after { display: none; }
    .nav-link:hover, 
    .nav-link.active { 
        background: transparent; 
        color: var(--color-accent) !important; 
    }

    .btn-contact {
        margin: 16px 20px;
        border-radius: var(--radius-lg);
        text-align: center;
        width: calc(100% - 40px);
        padding: 16px 28px !important;
    }

    .dropdown-menu {
        border: none;
        box-shadow: none;
        background: var(--color-gray-50);
        border-radius: 0;
        padding: 0;
        margin: 0;
        border-top: none;
        opacity: 1;
        visibility: visible;
        transform: none;
        position: static !important;
    }

    .dropdown-item {
        padding: 14px 20px 14px 40px;
        border-radius: 0;
        font-size: 15px;
        font-weight: 500;
    }

    .dropdown-item::before { display: none; }
    .dropdown-item:hover {
        background: rgba(233, 30, 99, 0.06);
        transform: none;
        color: var(--color-accent);
    }

    .dropdown-submenu .dropdown-menu.submenu {
        left: 0;
        margin-left: 0;
        margin-top: 0;
        position: static;
        background: rgba(197, 165, 114, 0.05);
        box-shadow: none;
    }

    .dropdown-submenu .dropdown-item {
        padding-left: 60px;
    }

    .submenu-indicator {
        transform: rotate(0deg);
        right: 20px;
    }

    .dropdown-submenu.active .submenu-indicator {
        transform: rotate(90deg);
        color: var(--color-accent);
    }

    .dropdown-divider { margin: 8px 0; opacity: 0.4; }

    .navbar-collapse {
        background: var(--color-background);
        border-radius: var(--radius-lg);
        margin-top: 16px;
        box-shadow: var(--shadow-md);
    }

    .navbar-collapse.collapsing {
        transition: height 0.35s ease;
    }
}

/* Tablet (768px - 991px) */
@media (min-width: 768px) and (max-width: 991px) {
    .brand-title { font-size: 20px; }
    .brand-subtitle { font-size: 10px; }
    .logo-img { height: 48px; }
}

/* Mobile Large (426px - 767px) */
@media (min-width: 426px) and (max-width: 767px) {
    .brand-container { gap: 14px; }
    .brand-title { font-size: 18px; }
    .brand-subtitle { font-size: 10px; }
    .logo-img { height: 44px; }
}

/* Mobile Medium (376px - 425px) */
@media (min-width: 376px) and (max-width: 425px) {
    .navbar .container-fluid {
        padding-left: 12px;
        padding-right: 12px;
    }
    
    .navbar-brand { margin-right: 8px; }
    .brand-container { gap: 10px; }
    .brand-logos { gap: 6px; }
    .logo-img { height: 40px; }
    
    .brand-title {
        font-size: 16px;
        letter-spacing: -0.5px;
    }
    
    .brand-subtitle {
        font-size: 9px;
        letter-spacing: 1px;
    }
    
    .custom-toggler {
        width: 40px;
        height: 40px;
        padding: 8px;
    }
    
    .toggler-line { width: 26px; }
}

/* Mobile Small (321px - 375px) */
@media (min-width: 321px) and (max-width: 375px) {
    .navbar .container-fluid {
        padding-left: 10px;
        padding-right: 10px;
    }
    
    .navbar-brand { margin-right: 6px; }
    .brand-container { gap: 8px; }
    .brand-logos { gap: 5px; }
    .logo-img { height: 36px; }
    
    .brand-title {
        font-size: 14px;
        letter-spacing: -0.6px;
    }
    
    .brand-subtitle {
        font-size: 8px;
        letter-spacing: 0.8px;
    }
    
    .custom-toggler {
        width: 38px;
        height: 38px;
        padding: 7px;
    }
    
    .toggler-line {
        width: 24px;
        height: 2.5px;
    }
}

/* Mobile Extra Small (Below 320px) - Stack Layout */
@media (max-width: 320px) {
    .navbar .container-fluid {
        flex-wrap: wrap;
        padding: 8px 10px;
        gap: 10px;
    }
    
    .navbar-brand {
        width: 100%;
        justify-content: center;
        margin: 0;
        order: 1;
    }
    
    .brand-container {
        justify-content: center;
        gap: 8px;
    }
    
    .logo-img { height: 32px; }
    
    .brand-title {
        font-size: 12px;
        text-align: center;
        white-space: normal !important;
        line-height: 1.1;
    }
    
    .brand-subtitle {
        font-size: 7px;
        text-align: center;
        letter-spacing: 0.5px;
    }
    
    .custom-toggler {
        order: 2;
        margin: 0 auto;
    }
}

/* Phone Small (max-width: 576px) */
@media (max-width: 576px) {
    .top-bar { font-size: 12px; padding: 8px 0; }
    .top-info { 
        flex-direction: column; 
        gap: 8px; 
        align-items: center; 
        text-align: center; 
    }
    .top-link { font-size: 12px; }
    
    .nav-link { padding: 14px 18px !important; font-size: 15px; }
    .dropdown-item { padding: 12px 18px 12px 36px; font-size: 14px; }
    .dropdown-submenu .dropdown-item { padding-left: 52px; }
}

/* Desktop Hover Effects (992px and up) */
@media (min-width: 992px) {
    .dropdown:hover > .dropdown-menu {
        display: block;
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .dropdown-submenu:hover > .dropdown-menu.submenu {
        display: block;
        opacity: 1;
        visibility: visible;
    }
}

/* Accessibility - Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .scroll-progress {
        transition: none;
    }
}

/* Print Styles */
@media print {
    .top-bar,
    .navbar-toggler,
    .scroll-progress,
    .btn-contact {
        display: none;
    }
    
    .navbar {
        position: static;
        box-shadow: none;
    }
}