/*
 * Web Summit Vancouver - Header Styles
 * Separate stylesheet for header/navigation components
 */

/* ========== Header & Navigation Styles ========== */
.header-area {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--white, #ffffff);
    transition: all 0.3s ease-in-out;
}

/* Top Bar Styles */
.top-bar {
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    background-color: #f8f9fa;
}

.top-bar a {
    color: var(--brand-primary, #0c1439);
    font-size: 0.875rem;
    transition: all 0.2s ease-in-out;
}

.top-bar a:hover {
    color: var(--brand-accent, #d43c05);
}

/* Main Navigation */
.navbar {
    padding: 1rem 0;
    transition: all 0.3s ease-in-out;
    background-color: #ffffff !important;
}

.navbar-brand {
    transition: all 0.3s ease-in-out;
}

.navbar-brand img {
    height: 40px;
    transition: all 0.3s ease-in-out;
}

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

/* Navigation Links */
.navbar-light .navbar-nav .nav-link {
    color: var(--brand-primary, #0c1439);
    font-weight: 600;
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    transition: all 0.2s ease-in-out;
    position: relative;
}

.navbar-light .navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--brand-accent, #d43c05);
    transition: all 0.3s ease-in-out;
    transform: translateX(-50%);
}

.navbar-light .navbar-nav .nav-link:hover::after,
.navbar-light .navbar-nav .nav-link.active::after {
    width: 80%;
}

.navbar-light .navbar-nav .nav-link:hover {
    color: var(--brand-accent, #d43c05);
}

.navbar-light .navbar-nav .nav-link.active {
    color: var(--brand-accent, #d43c05);
    font-weight: 700;
}

/* Dropdown Menus */
.dropdown-menu {
    border: none;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    border-radius: 0.5rem;
    padding: 0.5rem 0;
    margin-top: 0.5rem;
    animation: dropdownFadeIn 0.3s ease-in-out;
}

@keyframes dropdownFadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dropdown-item {
    padding: 0.625rem 1.5rem;
    font-size: 0.875rem;
    color: var(--dark-gray, #333333);
    transition: all 0.2s ease-in-out;
    position: relative;
}

.dropdown-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 60%;
    background-color: var(--brand-accent, #d43c05);
    transition: all 0.3s ease-in-out;
}

.dropdown-item:hover::before {
    width: 3px;
}

.dropdown-item:hover {
    background-color: #f6f6f7;
    color: var(--brand-accent, #d43c05);
    padding-left: 2rem;
}

.dropdown-item:focus {
    background-color: #f6f6f7;
    color: var(--brand-accent, #d43c05);
}

/* Navigation CTA Buttons */
.navbar .btn {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    border-radius: 0.25rem;
    transition: all 0.3s ease-in-out;
    font-weight: 600;
}

.navbar .btn-danger {
    background-color: var(--brand-accent, #d43c05);
    border: none;
    color: #ffffff;
}

.navbar .btn-danger:hover {
    background-color: #b93305;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(212, 60, 5, 0.4);
}

.navbar .btn-primary {
    background-color: var(--brand-primary, #0c1439);
    border: none;
    color: #ffffff;
}

.navbar .btn-primary:hover {
    background-color: #030617;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(12, 20, 57, 0.4);
}

/* Mobile Toggler */
.navbar-toggler {
    border: none;
    padding: 0.5rem;
}

.navbar-toggler:focus {
    box-shadow: none;
    outline: none;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(12, 20, 57, 0.75)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Sticky Header Effect */
.header-area.scrolled {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-area.scrolled .navbar {
    padding: 0.5rem 0;
}

.header-area.scrolled .navbar-brand img {
    height: 35px;
}

/* ========== Responsive Design ========== */

/* Tablet */
@media (max-width: 991px) {
    .navbar-collapse {
        background-color: #ffffff;
        padding: 1rem;
        margin-top: 1rem;
        border-radius: 0.5rem;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .navbar-nav {
        align-items: flex-start !important;
    }

    .navbar-light .navbar-nav .nav-link {
        padding: 0.75rem 1rem;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }

    .navbar-light .navbar-nav .nav-link::after {
        display: none;
    }

    .dropdown-menu {
        border: none;
        box-shadow: none;
        padding-left: 1rem;
    }

    .navbar .btn {
        width: 100%;
        margin-top: 0.5rem;
    }

    .nav-item.ms-lg-3,
    .nav-item.ms-lg-2 {
        margin-left: 0 !important;
    }
}

/* Mobile */
@media (max-width: 575px) {
    .top-bar {
        font-size: 0.75rem;
        padding: 0.5rem 0;
    }

    .navbar-brand img {
        height: 32px;
    }

    .navbar-light .navbar-nav .nav-link {
        font-size: 0.8125rem;
    }
}

/* Desktop - Enhanced Hover Effects */
@media (min-width: 992px) {
    .navbar-nav {
         gap: 0px;
    }

    .dropdown:hover .dropdown-menu {
        display: block;
    }

    .dropdown-menu {
        margin-top: 0;
    }
}