/* ===== DESKTOP NAVIGATION - DEFAULT ===== */

/* Main navigation container */
.main-nav {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Search bar styling */
.main-nav .tool-search-bar {
    margin: 0;
}

.main-nav form.tool-search-bar {
    margin: 0;
}

/* Navigation links container */
.nav-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 20px;
    align-items: center;
}

/* Navigation link styling */
.nav-links a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    padding: 8px 12px;
    position: relative;
    transition: color 0.2s;
    white-space: nowrap;
}

.nav-links a:hover {
    color: #e0f2fe;
}

/* Dropdown container */
.dropdown {
    position: relative;
}

/* Dropdown menu */
.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background-color: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 8px 0;
    margin-top: 8px;
    min-width: 260px;
    z-index: 1000;
    list-style: none;
    animation: fadeIn 0.2s ease-out;
}

/* Dropdown links */
.dropdown-menu a {
    color: #333;
    padding: 10px 16px;
    display: block;
    white-space: nowrap;
    transition: all 0.2s ease;
    font-size: 0.95rem;
}

.dropdown-menu a:hover {
    background-color: #f1f5f9;
    color: #209CEE;
}

/* Dropdown divider */
.dropdown-divider {
    height: 1px;
    background-color: #e2e8f0;
    margin: 8px 0;
}

/* Theme toggle button */
.theme-toggle {
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #fff;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 1.1rem;
    margin-left: 10px;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

/* Fade in animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== HAMBURGER BUTTON ===== */

.hamburger-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 38px;
    height: 38px;
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 6px;
    cursor: pointer;
    padding: 6px;
    flex-shrink: 0;
}

.hamburger-btn span {
    display: block;
    width: 20px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: all 0.25s ease;
    transform-origin: center;
}

/* Animate to X when open */
.hamburger-btn.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.hamburger-btn.open span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
.hamburger-btn.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ===== MOBILE NAVIGATION - SCOPED ===== */

@media (max-width: 900px) {

    /* Site branding row: title left, hamburger right */
    .site-branding {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        padding: 0 16px;
        box-sizing: border-box;
    }

    .hamburger-btn {
        display: flex;
    }

    /* Hide nav by default on mobile */
    .main-nav {
        display: none;
        flex-direction: column;
        gap: 0;
        width: 100%;
        padding: 8px 0 12px;
        border-top: 1px solid rgba(255,255,255,0.2);
    }

    /* Show nav when hamburger is toggled */
    .main-nav.open {
        display: flex;
    }

    /* Search bar - full width */
    .main-nav .tool-search-bar {
        order: 1;
        width: 100%;
        max-width: 100%;
        padding: 8px 16px;
        box-sizing: border-box;
    }

    /* Navigation links - full width, stacked */
    .main-nav .nav-links {
        order: 2;
        flex-direction: column;
        width: 100%;
        gap: 0;
    }

    .nav-links li {
        width: 100%;
        text-align: center;
    }

    .nav-links a {
        display: block;
        padding: 12px 16px;
        width: 100%;
        box-sizing: border-box;
    }

    /* Dropdown - full width, static positioning */
    .dropdown {
        width: 100%;
    }

    .dropdown-menu {
        position: static;
        width: 100%;
        max-width: 100%;
        min-width: auto;
        margin-top: 4px;
        box-shadow: none;
        border-radius: 4px;
        animation: none;
    }

    .dropdown-menu a {
        padding: 12px 20px;
        text-align: center;
        white-space: normal;
    }

    /* Theme toggle - centered */
    .main-nav .theme-toggle {
        order: 3;
        margin-left: 0;
        padding: 10px 20px;
    }
}