/* ==========================================================================
   DESKTOP & MOBILE HEADER STYLING
   ========================================================================== */
.header {
    background: var(--header-bg);
    box-shadow: 0 2px 12px var(--shadow-light);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--header-border);
}

.header-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    line-height: 0;
}

.logo img {
    height: 40px;
    width: auto;
    max-height: 48px;
    object-fit: contain;
    display: block;
}

.nav {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav>li {
    position: relative;
}

.nav>li>a {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--header-text);
    border-radius: 8px;
    transition: background 0.2s, color 0.2s;
    white-space: nowrap;
}

.nav>li>a:hover {
    background: var(--bg-hover);
    color: var(--header-text-hover);
}

.nav>li>a .fa-chevron-down {
    font-size: 11px;
    transition: transform 0.25s;
    color: var(--hamburger-color);
}

.nav>li:hover>a .fa-chevron-down {
    transform: rotate(180deg);
    color: var(--color-primary);
}

.dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 220px;
    background: var(--dropdown-bg);
    border-radius: 12px;
    box-shadow: 0 12px 40px var(--shadow-medium);
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(6px);
    transition: opacity 0.25s, transform 0.25s, visibility 0.25s;
    border: 1px solid var(--dropdown-border);
    z-index: 100;
}

.nav>li:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* --- Megamenu Styles (Desktop) --- */
.megamenu {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(6px);
    width: 860px;
    background: var(--dropdown-bg);
    border-radius: 20px;
    box-shadow: 0 15px 45px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--dropdown-border);
    padding: 28px 32px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s, transform 0.25s, visibility 0.25s;
    z-index: 100;
}   

.nav>li:hover .megamenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.megamenu-inner {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 30px;
}

.megamenu-col h4 {
    font-size: 0.85rem;
    font-weight: 750;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--color-primary);
    margin-bottom: 14px;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 8px;
}

.megamenu-col ul {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.megamenu-col ul li a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    font-size: 13.5px;
    font-weight: 500;
    color: var(--dropdown-text);
    border-radius: 8px;
    transition: background 0.15s, color 0.15s, padding-left 0.15s;
}

.megamenu-col ul li a:hover {
    background: var(--bg-hover);
    color: var(--color-primary);
    padding-left: 16px;
}

.megamenu-col ul li a i {
    font-size: 0.85rem;
    color: var(--dropdown-icon);
    transition: color 0.15s;
    width: 16px;
}

.megamenu-col ul li a:hover i {
    color: var(--color-primary);
}

/* Mobile Submenu Headers */
.mobile-group-title {
    font-size: 10px;
    font-weight: 750;
    text-transform: uppercase;
    color: var(--color-primary);
    padding: 12px 16px 4px 0px;
    letter-spacing: 0.8px;
    pointer-events: none;
    border-bottom: 1px solid rgba(231, 24, 27, 0.05);
    margin-top: 6px;
    list-style: none;
}

.dropdown a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 450;
    color: var(--dropdown-text);
    transition: background 0.15s, color 0.15s;
    border-left: 3px solid transparent;
}

.dropdown a:hover {
    background: var(--bg-hover);
    color: var(--dropdown-text-hover);
    border-left-color: var(--color-primary);
}

.dropdown a i {
    width: 18px;
    font-size: 14px;
    color: var(--dropdown-icon);
}

.dropdown a:hover i {
    color: var(--color-primary);
}

.nav .contact-btn a {
    background: var(--btn-primary-bg);
    color: var(--btn-primary-text);
    padding: 8px 22px;
    border-radius: 40px;
    font-weight: 600;
    font-size: 14px;
    transition: background 0.2s, transform 0.15s;
}

.nav .contact-btn a:hover {
    background: var(--btn-primary-hover);
    transform: scale(1.02);
    color: var(--color-white);
}

/* --- Sub-Section: Mobile Hamburger Button --- */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 6px;
    border: none;
    background: transparent;
    border-radius: 6px;
    transition: background 0.2s;
}

.hamburger:hover {
    background: var(--hamburger-hover);
}

.hamburger span {
    display: block;
    width: 26px;
    height: 2.5px;
    background: var(--hamburger-color);
    border-radius: 4px;
    transition: all 0.3s ease;
    transform-origin: center;
}

.hamburger.active span:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
}

/* --- Sub-Section: Mobile Navigation Drawer --- */
.mobile-menu {
    display: none;
    background: var(--mobile-bg);
    padding: 8px 24px 24px;
    border-top: 1px solid var(--mobile-border);
    box-shadow: 0 8px 24px var(--shadow-heavy);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
}

.mobile-menu.open {
    display: block;
    max-height: 800px;
    padding: 8px 24px 24px;
}

.mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.mobile-menu ul li a {
    /* display: flex; */
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    font-size: 16px;
    font-weight: 500;
    color: var(--mobile-text);
    border-radius: 10px;
    transition: background 0.15s;
}

.mobile-menu ul li a:hover {
    background: var(--bg-hover);
    color: var(--mobile-text-hover);
}

.mobile-menu ul li a .fa-chevron-down {
    font-size: 12px;
    color: var(--hamburger-color);
    transition: transform 0.25s;
}

.mobile-menu ul li a.active .fa-chevron-down {
    transform: rotate(180deg);
    color: var(--color-primary);
}

.mobile-sub {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.25s ease;
    padding-left: 12px;
}

.mobile-sub.open {
    max-height: 700px;
}

.mobile-sub li a {
    padding: 10px 16px 10px 28px;
    font-size: 14px;
    font-weight: 400;
    color: var(--text-primary);
    border-left: 2px solid transparent;
}

.mobile-sub li a:hover {
    border-left-color: var(--color-primary);
    background: var(--bg-hover);
    color: var(--color-primary);
}

.mobile-sub li a i {
    width: 20px;
    font-size: 13px;
    color: var(--hamburger-color);
}

.mobile-sub li a:hover i {
    color: var(--color-primary);
}

.mobile-contact {
    margin-top: 12px;
}

.mobile-contact a {
    display: block;
    text-align: center;
    background: var(--btn-primary-bg);
    color: var(--color-white) !important;
    padding: 14px;
    border-radius: 40px;
    font-weight: 600;
    font-size: 16px;
}

.mobile-contact a:hover {
    background: var(--btn-primary-hover) !important;
}

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES (HEADER ONLY)
   ========================================================================== */

/* --- media: max-width: 991px (Tablets & Mobile Landscape) --- */
/* ========================================================================== */
/* RESPONSIVE MEDIA QUERIES (HEADER ONLY) */
/* ========================================================================== */

@media (max-width: 991px) {

    .header-inner {
        height: 64px;
        padding: 0 16px;
    }

    .logo img {
        height: 32px;
        max-height: 38px;
    }

    .nav {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .mobile-menu {
        display: block;
        background: var(--mobile-bg);
        border-top: 1px solid var(--mobile-border);
        box-shadow: 0 8px 24px var(--shadow-heavy);
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        z-index: 999;

        max-height: 0;
        overflow: hidden;

        padding: 0 16px;
        transition: max-height 0.4s ease, padding 0.3s ease;
    }

    .mobile-menu.open {
        max-height: calc(100vh - 64px); /* Screen height - header */
        padding: 4px 16px 20px;

        overflow-y: auto;
        overflow-x: hidden;

        -webkit-overflow-scrolling: touch;
    }
}

/* Smartphones */
@media (max-width: 480px) {

    .header-inner {
        height: 58px;
        padding: 0 12px;
    }

    .logo img {
        height: 28px;
        max-height: 34px;
    }

    .mobile-menu.open {
        max-height: calc(100vh - 58px);
        padding: 4px 12px 20px;
    }

    .mobile-menu ul li a {
        font-size: 15px;
        padding: 12px;
    }
}

/* --- media: max-width: 480px (Smartphones Portrait) --- */
@media (max-width: 480px) {
    .header-inner {
        height: 58px;
        padding: 0 12px;
    }

    .logo img {
        height: 28px;
        max-height: 34px;
    }

    .mobile-menu ul li a {
        font-size: 15px;
        padding: 12px 12px;
    }
}