/* ============================================
   PREMIUM MEGA DROPDOWN MENU SYSTEM
   ============================================ */

/* --- Nav Item with Dropdown --- */
.nav-item {
    position: static; /* Use navbar as positioning parent */
}

.nav-item.has-mega {
    position: static;
}

/* Trigger link */
.nav-trigger {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    cursor: pointer;
    user-select: none;
}

.nav-trigger .nav-chevron {
    width: 16px;
    height: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}

.nav-trigger .nav-chevron svg {
    width: 12px;
    height: 12px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: inherit;
}

.nav-item.is-open .nav-trigger .nav-chevron {
    transform: rotate(180deg);
}

.nav-item.is-open .nav-trigger {
    color: var(--primary-color);
}

/* ---- Mega Dropdown Panel ---- */
.mega-menu {
    position: fixed;
    top: var(--navbar-height, 70px);
    left: 0;
    right: 0;
    width: 100%;
    background: var(--card-bg);
    border-top: 3px solid var(--primary-color);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 0, 0, 0.06);
    z-index: 999;

    /* Hidden state */
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition:
        opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.25s cubic-bezier(0.4, 0, 0.2, 1),
        visibility 0.25s;
    pointer-events: none;
}

[data-theme="dark"] .mega-menu {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 8px 20px rgba(229, 9, 20, 0.08);
    background: #111111;
}

/* Visible state */
.mega-menu.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.mega-menu-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* ---- Mega Menu Header ---- */
.mega-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.75rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.mega-menu-header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mega-menu-cat-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.mega-menu-cat-title {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-color);
    margin-bottom: 0.2rem;
    letter-spacing: -0.3px;
}

.mega-menu-cat-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.mega-menu-view-all {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    background: var(--primary-color);
    color: #fff !important;
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 700;
    transition: all 0.2s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

.mega-menu-view-all:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(229, 9, 20, 0.3);
}

.mega-menu-view-all svg {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ---- Group Layout ---- */
.mega-menu-groups {
    display: grid;
    gap: 2rem;
}

/* Group heading */
.mega-group-title {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary-color);
    margin-bottom: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mega-group-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

/* ---- Tool Links Grid ---- */
.mega-links {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.4rem;
}

.mega-link {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.6rem 0.85rem;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-color);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.18s ease;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.mega-link::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--primary-color);
    opacity: 0;
    transition: opacity 0.18s ease;
    border-radius: 8px;
}

.mega-link:hover {
    background: var(--primary-light);
    border-color: rgba(229, 9, 20, 0.15);
    color: var(--primary-color);
    transform: translateX(3px);
}

.mega-link-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-alt);
    border-radius: 6px;
    transition: background 0.18s ease;
}

.mega-link:hover .mega-link-icon {
    background: rgba(229, 9, 20, 0.15);
}

.mega-link-text {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ---- Featured Highlight Card ---- */
.mega-featured {
    background: linear-gradient(135deg, var(--primary-color) 0%, #b9090b 100%);
    border-radius: 12px;
    padding: 1.5rem;
    color: white;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    min-height: 120px;
    position: relative;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.mega-featured::before {
    content: '';
    position: absolute;
    top: -30px;
    right: -30px;
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.mega-featured:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(229, 9, 20, 0.4);
}

.mega-featured-badge {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    background: rgba(255,255,255,0.2);
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    margin-bottom: 0.75rem;
    width: fit-content;
}

.mega-featured-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.mega-featured-desc {
    font-size: 0.78rem;
    opacity: 0.85;
}

/* ---- Overlay backdrop ---- */
.mega-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s;
    backdrop-filter: blur(2px);
}

.mega-overlay.is-open {
    opacity: 1;
    visibility: visible;
}

/* ---- Mobile --- */
@media (max-width: 768px) {
    .mega-menu {
        position: static;
        transform: none !important;
        opacity: 1 !important;
        visibility: visible !important;
        pointer-events: auto !important;
        border-top: none;
        border-bottom: none;
        border-left: 3px solid var(--primary-color);
        box-shadow: none;
        display: none;
        border-radius: 0;
    }

    .mega-menu.is-open {
        display: block;
    }

    .mega-menu-inner {
        padding: 1rem 1.5rem;
    }

    .mega-menu-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .mega-links {
        grid-template-columns: 1fr 1fr;
    }

    .mega-menu-groups {
        gap: 1.25rem;
    }

    .mega-overlay { display: none; }
}

@media (max-width: 480px) {
    .mega-links {
        grid-template-columns: 1fr;
    }
}

/* ---- Tools mega — specific grid layouts per category ---- */
.mega-menu[data-cols="2"] .mega-links { grid-template-columns: repeat(2, 1fr); }
.mega-menu[data-cols="3"] .mega-links { grid-template-columns: repeat(3, 1fr); }
.mega-menu[data-cols="4"] .mega-links { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 900px) {
    .mega-menu[data-cols="4"] .mega-links { grid-template-columns: repeat(3, 1fr); }
    .mega-menu[data-cols="3"] .mega-links { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .mega-menu[data-cols="2"] .mega-links,
    .mega-menu[data-cols="3"] .mega-links,
    .mega-menu[data-cols="4"] .mega-links { grid-template-columns: 1fr 1fr; }
}

/* "New" badge on tool links */
.mega-link-badge {
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    background: var(--primary-color);
    color: #fff;
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
    letter-spacing: 0.5px;
    flex-shrink: 0;
}

/* Active link state (current page) */
.mega-link.active {
    background: var(--primary-light);
    border-color: rgba(229, 9, 20, 0.2);
    color: var(--primary-color);
    font-weight: 600;
}