```css
/* =========================================
   HAD TECH STORE
   GLOBAL NAVBAR
========================================= */

.site-navbar {
    width: 100%;
    background: #181C22;
    border-bottom: 1px solid #334155;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-container {
    width: 100%;
    max-width: 1400px;
    min-height: 76px;
    margin: 0 auto;
    padding: 0 30px;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

/* =========================================
   LOGO
========================================= */

.navbar-logo {
    display: flex;
    align-items: baseline;
    gap: 5px;

    text-decoration: none;
    white-space: nowrap;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo-had {
    color: #F8FAFC;
    font-size: 23px;
}

.logo-tech {
    color: #38BDF8;
    font-size: 23px;
}

.logo-store {
    color: #A7B0BE;
    font-size: 12px;
    letter-spacing: 1.5px;
}

/* =========================================
   NAVIGATION
========================================= */

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

.navbar-links > a,
.dropdown-button {
    color: #A7B0BE;
    background: transparent;
    border: none;

    padding: 10px 13px;

    font-family: inherit;
    font-size: 14px;
    font-weight: 600;

    text-decoration: none;
    cursor: pointer;

    border-radius: 7px;

    transition:
        color 0.2s ease,
        background 0.2s ease;
}

.navbar-links > a:hover,
.dropdown-button:hover {
    color: #F8FAFC;
    background: #222831;
}

.navbar-links > a.active {
    color: #38BDF8;
}

/* =========================================
   DROPDOWN
========================================= */

.nav-dropdown {
    position: relative;
}

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

.dropdown-arrow {
    font-size: 15px;
    color: #38BDF8;
}

.dropdown-menu {
    position: absolute;

    top: calc(100% + 10px);
    left: 0;

    min-width: 220px;
    padding: 8px;

    background: #181C22;
    border: 1px solid #334155;
    border-radius: 10px;

    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);

    opacity: 0;
    visibility: hidden;
    transform: translateY(-5px);

    transition:
        opacity 0.2s ease,
        visibility 0.2s ease,
        transform 0.2s ease;
}

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

.dropdown-menu a {
    display: block;

    padding: 11px 13px;

    color: #A7B0BE;
    text-decoration: none;

    font-size: 14px;
    border-radius: 7px;

    transition:
        background 0.2s ease,
        color 0.2s ease;
}

.dropdown-menu a:hover {
    color: #F8FAFC;
    background: #222831;
}

/* =========================================
   ACTIONS
========================================= */

.navbar-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-icon,
.cart-button,
.mobile-menu-button {
    position: relative;

    width: 40px;
    height: 40px;

    display: flex;
    align-items: center;
    justify-content: center;

    color: #A7B0BE;
    background: transparent;

    border: none;
    border-radius: 8px;

    text-decoration: none;
    cursor: pointer;

    font-size: 17px;

    transition:
        color 0.2s ease,
        background 0.2s ease;
}

.nav-icon:hover,
.cart-button:hover,
.mobile-menu-button:hover {
    color: #38BDF8;
    background: #222831;
}

/* =========================================
   CART COUNT
========================================= */

.cart-count {
    position: absolute;

    top: -2px;
    right: -2px;

    min-width: 18px;
    height: 18px;

    padding: 0 5px;

    display: flex;
    align-items: center;
    justify-content: center;

    background: #38BDF8;
    color: #0F1115;

    border-radius: 50px;

    font-size: 10px;
    font-weight: 800;
}

/* =========================================
   SEARCH
========================================= */

.navbar-search {
    display: none;

    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px 15px;
}

.navbar-search.active {
    display: block;
}

.search-wrapper {
    display: flex;
    width: 100%;

    background: #0F1115;
    border: 1px solid #334155;
    border-radius: 9px;

    overflow: hidden;
}

.search-wrapper input {
    flex: 1;

    padding: 13px 15px;

    background: transparent;
    border: none;
    outline: none;

    color: #F8FAFC;
    font-family: inherit;
    font-size: 14px;
}

.search-wrapper input::placeholder {
    color: #64748B;
}

.search-wrapper button {
    padding: 0 20px;

    background: #38BDF8;
    color: #0F1115;

    border: none;

    font-weight: 700;
    cursor: pointer;

    transition: background 0.2s ease;
}

.search-wrapper button:hover {
    background: #60A5FA;
}

/* =========================================
   MOBILE MENU
========================================= */

.mobile-menu-button {
    display: none;
}

/* =========================================
   RESPONSIVE
========================================= */

@media (max-width: 1050px) {

    .navbar-links {
        display: none;
    }

    .mobile-menu-button {
        display: flex;
    }
}

@media (max-width: 600px) {

    .navbar-container {
        min-height: 68px;
        padding: 0 15px;
        gap: 10px;
    }

    .logo-had,
    .logo-tech {
        font-size: 19px;
    }

    .logo-store {
        display: none;
    }

    .navbar-actions {
        gap: 2px;
    }

    .nav-icon,
    .cart-button,
    .mobile-menu-button {
        width: 36px;
        height: 36px;
    }

    .navbar-search {
        padding: 0 15px 12px;
    }
}
```