/* ==========================================================================
   3291design Master Navigation - 2026 Global Architecture
   ========================================================================== */

/* Force every page to respect the Navbar height */
body {
    padding-top: 60px;
}

/* Master Fixed Header Container */
.uber-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background-color: #244255; /* Your signature deep blue-grey */
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.2);
    z-index: 10000;
    font-family: 'Helvetica Neue', Arial, sans-serif;
}

/* Inside Layout Alignment */
.navbar-container {
    max-width: 1200px;
    height: 100%;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Brand Logo Styling */
.nav-logo {
    color: #ffffff;
    text-decoration: none;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
}
.nav-logo span {
    color: #6897bb; /* Accent color matching your index subheads */
    font-weight: 300;
}

/* Desktop Navigation Menu Links */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 25px;
}

.nav-link {
    color: #ffffff;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 20px 0;
    border-bottom: 2px solid transparent;
    transition: color 0.3s ease, border-color 0.3s ease;
}

/* Hover & Active States */
.nav-link:hover {
    color: #2897eb;
}
.nav-link.active {
    color: #2897eb;
    border-bottom: 2px solid #2897eb;
}

/* ==========================================================================
   Mobile Responsive Hamburger Button
   ========================================================================== */
.menu-toggle {
    display: none; /* Hidden on desktop screens */
    flex-direction: column;
    justify-content: space-between;
    width: 22px;
    height: 16px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 10001;
}

.menu-toggle .bar {
    width: 100%;
    height: 2px;
    background-color: #ffffff;
    transition: all 0.3s ease;
}

/* ==========================================================================
   Responsive Breakpoint (Tablet & Mobile Layouts)
   ========================================================================== */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex; /* Activate hamburger */
    }

    /* Transform the Link Tray into a Mobile Dropdown Panel */
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        height: calc(100vh - 60px);
        background-color: #1e3747; /* Darker tone for mobile panel depth */
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        gap: 0;
        padding-top: 20px;
        
        /* Interactive Animation Hooks */
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: transform 0.4s cubic-bezier(0.1, 1, 0.1, 1), opacity 0.3s ease;
    }

    /* Reveal Menu Panel when '.open' is appended by JS */
    .nav-menu.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    /* Full-width Stacked Mobile Links */
    .nav-link {
        padding: 20px;
        text-align: center;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .nav-link.active {
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        background-color: rgba(40, 151, 235, 0.1);
    }

    /* Hamburger Morphing Animations (Changes bars into an 'X') */
    .menu-toggle.open .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    .menu-toggle.open .bar:nth-child(2) {
        opacity: 0;
    }
    .menu-toggle.open .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
}