:root {
    --primary-color: #1a1a1a;
    --background-color: #fff;
    --hover-color: #0066cc;
    --transition-speed: 0.3s;
    --text-light: #666;
    --border-color: rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--background-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 48px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: color var(--transition-speed);
}

.nav-link:hover {
    color: var(--hover-color);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--primary-color);
    position: relative;
    transition: all var(--transition-speed);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary-color);
    transition: all var(--transition-speed);
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    bottom: -8px;
}

.nav-menu li:last-child .nav-link {
    background-color: transparent;
    color: var(--primary-color);
    padding: 8px 20px;
    border-radius: 24px;
    transition: all var(--transition-speed);
    border: 2px solid var(--primary-color);
}

.nav-menu li:last-child .nav-link:hover {
    background-color: var(--primary-color);
    color: var(--background-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        width: 100%;
        background-color: var(--background-color);
        flex-direction: column;
        gap: 0;
        transform: translateX(100%);
        transition: transform var(--transition-speed);
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        overflow-y: auto;
        max-height: calc(100vh - 64px);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-link {
        display: block;
        padding: 16px 20px;
        border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    }

    .mobile-menu-btn.active .hamburger {
        background: transparent;
    }

    .mobile-menu-btn.active .hamburger::before {
        transform: rotate(45deg);
        top: 0;
    }

    .mobile-menu-btn.active .hamburger::after {
        transform: rotate(-45deg);
        bottom: 0;
    }

    .nav-menu li:last-child .nav-link {
        background-color: transparent;
        color: var(--primary-color);
        padding: 16px 20px;
        border-radius: 0;
        border: none;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu li:last-child .nav-link:hover {
        background-color: transparent;
        color: var(--hover-color);
        transform: none;
        box-shadow: none;
    }
}

/* Updated Dropdown styles */
.dropdown-toggle svg {
    margin-top: 2px;
}

.dropdown-arrow {
    transition: transform var(--transition-speed);
    margin-left: 4px;
}

.dropdown.active .dropdown-arrow {
    transform: rotate(-180deg);
}

.dropdown {
    position: relative;
    display: flex;
    justify-content: center;
}

.dropdown-toggle {
    white-space: nowrap;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 35px);
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: var(--background-color);
    min-width: 480px;
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed);
    border: 1px solid var(--border-color);
}

.dropdown-menu::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%) rotate(45deg);
    width: 12px;
    height: 12px;
    background: var(--background-color);
    border-radius: 2px;
    box-shadow: -2px -2px 5px rgba(0, 0, 0, 0.05);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.dropdown-item {
    display: flex;
    flex-direction: column;
    padding: 16px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--primary-color);
    transition: all var(--transition-speed);
    border: 1px solid transparent;
}

.dropdown-item:hover {
    background: rgba(0, 0, 0, 0.04);
    transform: translateY(-2px);
    border-color: var(--border-color);
}

.dropdown-icon {
    width: 24px;
    height: 24px;
    margin-bottom: 12px;
    color: var(--hover-color);
}

.dropdown-title {
    font-weight: 600;
    font-size: 15px;
    margin-bottom: 4px;
    color: var(--primary-color);
}

.dropdown-desc {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.4;
}

/* Mobile dropdown styles */
@media (max-width: 768px) {
    .nav-menu.active {
        min-height: 100vh;
    }
    .dropdown {
        display: block !important;
    }
    .dropdown-menu {
        position: static;
        min-width: 100%;
        transform: none;
        opacity: 1;
        visibility: hidden;
        max-height: 0;
        overflow: hidden;
        padding: 0;
        box-shadow: none;
        border-radius: 0;
        background-color: rgba(0, 0, 0, 0.03);
        left: 0;
        right: 0;
        width: 100%;
        transform: none !important;
        border: none;
    }

    .dropdown-grid {
        display: block;
        width: 100%;
        margin: 0;
        padding: 0;
    }

    .dropdown-item {
        display: block;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border-color);
        width: 100%;
        margin: 0;
    }

    .dropdown-title {
        display: block;
        font-size: 16px;
        font-weight: 600;
        margin-bottom: 4px;
    }

    .dropdown-desc {
        display: block;
        font-size: 14px;
    }

    .dropdown.active .dropdown-menu {
        visibility: visible;
        max-height: none;
    }
}

/* Update contact button styles */
.contact-btn {
    background-color: var(--primary-color) !important;
    color: var(--background-color) !important;
    padding: 12px 24px !important;
    border-radius: 32px !important;
    font-weight: 500 !important;
    transition: all 0.3s ease !important;
    border: none !important;
    position: relative;
    overflow: hidden;
}

.contact-btn:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15) !important;
    background-color: #000 !important;
    color: var(--background-color) !important;
}

/* Mobile contact button styles */
@media (max-width: 768px) {
    .contact-btn {
        background-color: transparent !important;
        color: var(--primary-color) !important;
        padding: 16px 20px !important;
        border-radius: 0 !important;
        border-bottom: 1px solid var(--border-color) !important;
        box-shadow: none !important;
    }

    .contact-btn:hover {
        transform: none !important;
        background-color: transparent !important;
        color: var(--hover-color) !important;
        box-shadow: none !important;
    }
}

/* Add this to your existing dropdown styles */
.dropdown-menu.references {
    min-width: 400px; /* Slightly smaller than services dropdown */
}

@media (max-width: 768px) {
    /* Existing mobile styles remain the same */
    .dropdown-menu.references {
        min-width: 100%;
    }
}