/* ===========================
   HABS - Shared Navbar Styles
   Source of truth: index.html
   =========================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(11, 14, 19, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid var(--color-border-subtle, #1A1F2A);
    transition: background-color var(--transition-medium, 0.3s cubic-bezier(0.4, 0, 0.2, 1)),
                box-shadow var(--transition-medium, 0.3s cubic-bezier(0.4, 0, 0.2, 1));
}

.navbar.scrolled {
    background-color: rgba(11, 14, 19, 0.95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem 2rem;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: all var(--transition-fast, 0.15s cubic-bezier(0.4, 0, 0.2, 1));
    cursor: pointer;
    font-size: inherit;
    font-weight: inherit;
    letter-spacing: inherit;
    color: inherit;
}

.logo img {
    height: 32px;
    transition: all var(--transition-fast, 0.15s cubic-bezier(0.4, 0, 0.2, 1));
}

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

.logo:hover img {
    filter: brightness(0) invert(1) drop-shadow(0 0 10px rgba(74, 158, 255, 0.6));
}

/* Desktop nav-menu */
@media (min-width: 769px) {
    .nav-menu {
        display: flex;
        list-style: none;
        gap: 1.5rem;
        align-items: center;
    }
}

.nav-menu a {
    color: var(--color-secondary, #9BA3B4);
    text-decoration: none;
    font-weight: 500;
    font-size: 13px;
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    transition: all var(--transition-fast, 0.15s cubic-bezier(0.4, 0, 0.2, 1));
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent, #4A9EFF), transparent);
    transition: width var(--transition-fast, 0.15s cubic-bezier(0.4, 0, 0.2, 1));
}

.nav-menu a:hover {
    color: var(--color-primary, #FFFFFF);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-menu a.active {
    color: var(--color-primary, #FFFFFF);
}

.nav-menu a.active::after {
    width: 100%;
}