:root {
    --pm-font-sans: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
    --pm-nav-bg: rgba(0, 0, 0, 0.95);
    --pm-nav-hover: #ccc;
    --pm-dropdown-bg: #ffffff;
    --pm-dropdown-border: #dddddd;
    --pm-dropdown-text: #333333;
    --pm-dropdown-hover: #f5f5f5;
    --pm-accent: #667eea;
    --pm-footer-bg: #000000;
    --pm-footer-text: #bbbbbb;
    --pm-footer-muted: #999999;
}

nav,
nav button,
nav a,
footer,
footer a,
footer p,
footer li,
footer h3 {
    font-family: var(--pm-font-sans);
}

nav {
    background: var(--pm-nav-bg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    backdrop-filter: blur(10px);
}

nav .nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

nav .logo {
    font-size: 1.3em;
    font-weight: 600;
    color: white;
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

nav .logo:hover {
    text-decoration: none;
}

nav .logo img {
    height: 40px;
    width: 40px;
}

nav .nav-items {
    display: flex;
    gap: 30px;
    align-items: center;
}

nav .dropdown {
    position: relative;
}

nav .dropdown:hover .dropdown-menu {
    display: block;
}

nav .dropdown:hover .dropdown-menu.services-menu {
    display: grid;
}

nav .dropdown:hover .dropdown-toggle {
    color: var(--pm-nav-hover);
}

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

nav .dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1em;
    color: white;
    font-weight: 500;
    transition: color 0.2s;
    padding: 0;
    margin: 0;
    line-height: 1;
    height: auto;
}

nav .dropdown-toggle:hover {
    color: var(--pm-nav-hover);
}

nav .dropdown-toggle .chevron {
    font-size: 0.8em;
    transition: transform 0.3s;
}

nav .dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--pm-dropdown-bg);
    border: 1px solid var(--pm-dropdown-border);
    border-radius: 6px;
    min-width: 200px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    padding: 8px 0;
    z-index: 100;
}

nav .dropdown-menu.services-menu {
    display: none;
    grid-template-columns: 1fr 1fr;
    min-width: 350px;
    gap: 0;
}

nav .dropdown-menu.services-menu a {
    padding: 12px 20px;
}

nav .nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

nav .dropdown-menu a {
    display: block;
    padding: 12px 20px;
    color: var(--pm-dropdown-text);
    text-decoration: none;
    transition: background 0.2s;
}

nav .dropdown-menu a:hover {
    background: var(--pm-dropdown-hover);
    color: var(--pm-accent);
}

nav .hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: white;
    font-size: 1.5em;
    padding: 0;
    width: 40px;
    height: 40px;
    margin: 0;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
}

nav .hamburger span {
    width: 25px;
    height: 3px;
    background: white;
    border-radius: 2px;
    transition: all 0.3s;
    display: block;
}

nav .hamburger.open span:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
}

nav .hamburger.open span:nth-child(2) {
    opacity: 0;
}

nav .hamburger.open span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

footer {
    background: var(--pm-footer-bg);
    color: white;
    padding: 30px 0 20px 0;
}

footer .footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

footer .footer-section h3 {
    font-size: 1.1em;
    margin-bottom: 15px;
    color: white;
}

footer .footer-section ul {
    list-style: none;
}

footer .footer-section ul li {
    margin-bottom: 12px;
}

footer .footer-section a {
    color: var(--pm-footer-text);
    text-decoration: none;
    transition: color 0.2s;
}

footer .footer-section a:hover {
    color: white;
}

footer .footer-section p {
    color: var(--pm-footer-text);
    line-height: 1.8;
    margin: 0;
}

footer .footer-bottom {
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    margin-top: 40px;
    color: var(--pm-footer-muted);
    font-size: 0.9em;
}

@media (max-width: 768px) {
    nav .hamburger {
        display: flex;
    }

    nav .nav-items {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--pm-nav-bg);
        flex-direction: column;
        gap: 0;
        align-items: stretch;
        padding: 20px 0;
        z-index: 100;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    nav .nav-items.open {
        display: flex;
    }

    nav .dropdown,
    nav .nav-link {
        width: 100%;
        text-align: left;
    }

    nav .dropdown {
        padding: 0;
    }

    nav .dropdown-toggle {
        width: 100%;
        justify-content: space-between;
        padding: 15px 20px;
        background: none;
        border: none;
        color: white;
        margin: 0;
    }

    nav .dropdown-menu {
        position: static;
        display: none;
        background: rgba(255, 255, 255, 0.05);
        border: none;
        box-shadow: none;
        min-width: 100%;
        padding: 10px 0;
        margin-top: 0;
    }

    nav .dropdown-menu.open {
        display: block;
    }

    nav .dropdown-menu.services-menu {
        display: none;
        grid-template-columns: 1fr;
    }

    nav .dropdown-menu.services-menu.open {
        display: grid;
    }

    nav .dropdown-menu a {
        padding: 10px 20px;
        color: var(--pm-footer-text);
    }

    nav .dropdown-menu a:hover {
        background: rgba(102, 126, 234, 0.1);
        color: var(--pm-accent);
    }

    nav .nav-link {
        padding: 15px 20px;
    }

    nav .nav-link:hover {
        background: rgba(102, 126, 234, 0.1);
    }

    nav .nav-content {
        flex-wrap: wrap;
    }
}