/* ==========================================================================
   UNIFIED NAVIGATION & HEADER SYSTEM FOR ABCOODERS
   ========================================================================== */

:root {
    --primary-blue: #4F46E5;
    --primary-purple: #7C3AED;
    --accent-orange: #F97316;
    --white: #FFFFFF;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-900: #111827;
    --font-display: 'Poppins', sans-serif;
    --gradient-primary: linear-gradient(135deg, #4F46E5 0%, #7C3AED 100%);
}

/* ─── PROMOTIONAL BANNER ─── */
#promoBanner {
    background: linear-gradient(90deg, #4F46E5 0%, #7C3AED 100%);
    color: white;
    padding: 10px 0;
    text-align: center;
    position: relative;
    z-index: 10000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    font-family: 'Inter', sans-serif;
}
#promoBanner a {
    text-decoration: none;
}

/* ─── HEADER TOP BAR ─── */
.header-top {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 0.4rem 0;
    font-size: 0.85rem;
    font-family: 'Inter', sans-serif;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}
.header-top .contact-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.header-top .contact-info .icon {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

/* ─── NAVBAR MAIN ─── */
.navbar {
    background: var(--white);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    padding: 0.55rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    height: 72px; /* Set fixed height to prevent shape changes */
    display: flex;
    align-items: center;
}
.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap;
    width: 100%;
}
.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--primary-blue);
    text-decoration: none;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}
.navbar-brand:hover {
    transform: scale(1.03);
}
.logo-image {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    object-fit: contain;
}

/* ─── NAVBAR NAV & LINKS ─── */
.navbar-nav {
    display: flex !important;
    flex-direction: row !important;
    list-style: none;
    gap: 1rem;
    align-items: center;
    margin: 0;
    padding: 0;
    flex-wrap: nowrap;
    white-space: nowrap;
}
.navbar-nav li {
    list-style: none;
}
.nav-link {
    color: var(--gray-700) !important;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 0.8rem !important;
    border-radius: 12px;
    transition: all 0.25s ease;
    position: relative;
    font-size: 0.95rem;
    display: inline-block;
}
.nav-link:hover {
    color: var(--primary-blue) !important;
    background: var(--gray-50);
}
.nav-link.active {
    color: var(--primary-blue) !important;
    background: var(--gray-100);
    font-weight: 600;
}

/* ─── BUTTONS IN NAVBAR ─── */
.navbar-nav .btn {
    padding: 0.55rem 1.1rem !important;
    font-size: 0.9rem !important;
    border-radius: 10px !important;
    font-weight: 600 !important;
    text-decoration: none;
    transition: all 0.25s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}
.navbar-nav .btn-secondary {
    border: 2px solid var(--primary-blue) !important;
    color: var(--primary-blue) !important;
    background: transparent !important;
}
.navbar-nav .btn-secondary:hover {
    background: var(--primary-blue) !important;
    color: var(--white) !important;
}
.navbar-nav .btn-primary {
    background: var(--primary-blue) !important;
    color: var(--white) !important;
    border: 2px solid var(--primary-blue) !important;
}
.navbar-nav .btn-primary:hover {
    background: var(--primary-purple) !important;
    border-color: var(--primary-purple) !important;
    transform: translateY(-1px);
}

/* ─── DROPDOWN MENU ─── */
.navbar .dropdown-menu {
    border: none !important;
    box-shadow: 0 10px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1) !important;
    border-radius: 12px !important;
    padding: 0.5rem 0 !important;
    animation: fadeIn 0.2s ease-out;
}
.navbar .dropdown-item {
    font-size: 0.9rem !important;
    padding: 0.6rem 1.2rem !important;
    color: var(--gray-700) !important;
    transition: all 0.2s ease;
}
.navbar .dropdown-item:hover {
    background: var(--gray-50) !important;
    color: var(--primary-blue) !important;
}

/* ─── MOBILE HAMBURGER BUTTON ─── */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}
.mobile-menu-btn span {
    width: 100%;
    height: 2px;
    background-color: var(--gray-700);
    border-radius: 2px;
    transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
}
.mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}
.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}
.mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* ─── MEDIA QUERIES FOR RESPONSIVENESS ─── */
@media (max-width: 1250px) {
    .navbar-nav {
        gap: 0.5rem;
    }
    .nav-link {
        padding: 0.4rem 0.6rem !important;
        font-size: 0.9rem;
    }
    .navbar-brand {
        font-size: 1.4rem;
    }
}

/* Trigger Mobile Menu at 1120px to prevent links overflow */
@media (max-width: 1120px) {
    .header-top {
        display: none; /* Hide top bar on mobile/tablet */
    }
    .mobile-menu-btn {
        display: flex;
    }
    .navbar-nav {
        display: none !important;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        flex-direction: column !important;
        align-items: stretch;
        gap: 0.5rem;
        padding: 1.5rem;
        border-radius: 0 0 16px 16px;
        z-index: 1000;
        width: 100%;
        border-top: 1px solid var(--gray-100);
        max-height: calc(100vh - 80px);
        overflow-y: auto;
    }
    .navbar-nav.active {
        display: flex !important;
    }
    .navbar-nav li {
        width: 100%;
    }
    .nav-link {
        width: 100%;
        text-align: center;
        padding: 0.8rem !important;
        border-radius: 8px;
        display: block;
        background: var(--gray-50);
        font-size: 1rem;
    }
    .nav-link:hover, .nav-link.active {
        background: var(--primary-blue) !important;
        color: var(--white) !important;
    }
    .navbar-nav .btn {
        width: 100%;
        justify-content: center;
        padding: 0.8rem !important;
        border-radius: 8px !important;
        font-size: 1rem !important;
        margin-top: 0.25rem;
    }
}

/* Desktop Dropdown Hover Interactions */
@media (min-width: 1121px) {
    .navbar .nav-item.dropdown:hover .dropdown-menu {
        display: block;
        margin-top: 0;
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
    }
    
    .navbar .dropdown-menu {
        display: none;
        position: absolute;
        transition: all 0.2s ease;
    }
}