/* ==========================================================
   HEADER
========================================================== */

.header {
    position: fixed;
    top: 40px;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: #ffffff;
    transition: 0.35s ease;
    box-shadow: 0 8px 30px rgba(15, 23, 42, 0.08);
}

.header.nav-hidden {
    transform: translateY(-100%);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.45);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    box-shadow: 0 12px 35px rgba(15, 23, 42, 0.08);
}

/* NAVBAR */

.navbar {
    min-height: 86px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* LOGO - white box removed */

.logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    background: transparent;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
}

.logo img {
    width: 220px;
    height: auto;
    object-fit: contain;
    transition: 0.35s ease;
}

.header.scrolled .logo {
    background: transparent;
    box-shadow: none;
}

.header.scrolled .logo img {
    width: 205px;
}

/* NAVIGATION */

.nav-menu {
    margin-left: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 38px;
}

.nav-links a {
    position: relative;
    color: #0F172A;
    font-weight: 700;
    transition: 0.3s ease;
}

.header.scrolled .nav-links a {
    color: #0F172A;
}

.nav-links a:hover,
.nav-links a.active,
.header.scrolled .nav-links a:hover,
.header.scrolled .nav-links a.active {
    color: #2563EB;
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 0;
    height: 2px;
    background: #2563EB;
    transition: 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

/* BUTTON */

.navbar-btn {
    margin-left: 40px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 24px;
    background: #2563EB;
    color: #fff;
    border-radius: 8px;
    font-weight: 700;
    transition: 0.35s ease;
}

.navbar-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(37, 99, 235, 0.3);
}

.navbar-btn i {
    transition: 0.35s ease;
}

.navbar-btn:hover i {
    transform: translateX(5px);
}

/* MOBILE */

.mobile-toggle {
    display: none;
}
/* Topbar hidden on tablet/mobile, so header comes back to top */

@media (max-width: 992px) {
    .header {
        top: 0;
    }
}

/* ==========================================================
   SERVICES DROPDOWN - PREMIUM NAV FIX
========================================================== */

.nav-links,
.nav-menu {
    display: flex;
    align-items: center;
    gap: 34px;
}

.nav-links li,
.nav-menu li {
    list-style: none;
}

.nav-item {
    position: relative;
}

.nav-link,
.nav-dropdown-toggle {
    position: relative;
    border: none;
    outline: none;
    background: transparent;
    color: #0F172A;
    font-family: inherit;
    font-size: 15px;
    font-weight: 800;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 32px 0;
    line-height: 1;
}

.nav-dropdown-toggle i {
    font-size: 11px;
    transition: transform 0.25s ease;
}

.has-dropdown:hover .nav-dropdown-toggle i {
    transform: rotate(180deg);
}

/* Dropdown Box */

.nav-dropdown {
    position: absolute;
    top: calc(100% - 8px);
    left: 50%;
    transform: translateX(-50%) translateY(12px);
    width: 330px;
    padding: 12px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(203, 213, 225, 0.86);
    box-shadow: 0 26px 70px rgba(15, 23, 42, 0.16);
    backdrop-filter: blur(18px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: 0.25s ease;
    z-index: 9999;
}

.has-dropdown:hover .nav-dropdown,
.has-dropdown:focus-within .nav-dropdown {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown::before {
    content: "";
    position: absolute;
    top: -7px;
    left: 50%;
    width: 14px;
    height: 14px;
    background: rgba(255, 255, 255, 0.96);
    border-left: 1px solid rgba(203, 213, 225, 0.86);
    border-top: 1px solid rgba(203, 213, 225, 0.86);
    transform: translateX(-50%) rotate(45deg);
}

/* Dropdown Links */

.nav-dropdown a {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 13px;
    padding: 13px 14px;
    border-radius: 14px;
    color: #0F172A;
    font-size: 14px;
    font-weight: 800;
    line-height: 1.35;
    transition: 0.25s ease;
}

.nav-dropdown a i {
    width: 34px;
    height: 34px;
    border-radius: 11px;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    background: #EFF6FF;
    color: #2563EB;
    font-size: 14px;
    transition: 0.25s ease;
}

.nav-dropdown a span {
    display: block;
}

.nav-dropdown a:hover {
    background: #F8FBFF;
    color: #2563EB;
    transform: translateX(3px);
}

.nav-dropdown a:hover i {
    background: #2563EB;
    color: #FFFFFF;
}

/* Active Services State */

.nav-dropdown-toggle.active,
.has-dropdown:hover .nav-dropdown-toggle {
    color: #2563EB;
}
.nav-dropdown-toggle.active::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 24px;
    width: 0;
    height: 2px;
    background: #2563EB;
    transition: 0.3s ease;
}

.nav-dropdown-toggle.active::after {
    width: 100%;
}
/* Header scrolled compatibility */

.header.scrolled .nav-dropdown {
    background: rgba(255, 255, 255, 0.94);
}

.header.scrolled .nav-dropdown-toggle {
    color: #0F172A;
}

/* Mobile dropdown */

@media (max-width: 992px) {
    .nav-links,
    .nav-menu {
        align-items: stretch;
        gap: 0;
    }

    .nav-item {
        width: 100%;
    }

    .nav-link,
    .nav-dropdown-toggle {
        width: 100%;
        padding: 15px 0;
        justify-content: space-between;
    }

    .nav-dropdown {
        position: static;
        width: 100%;
        transform: none;
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        box-shadow: none;
        border-radius: 16px;
        margin: 6px 0 12px;
        background: #F8FBFF;
        display: none;
    }

    .nav-dropdown::before {
        display: none;
    }

    .has-dropdown.open .nav-dropdown {
        display: grid;
        gap: 4px;
    }

    .has-dropdown.open .nav-dropdown-toggle i {
        transform: rotate(180deg);
    }
}