/* Basic CSS Reset */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: sans-serif; line-height: 1.6; color: #333; }
/* --- DMS Navigation & Sticky Header --- */

:root {
    --dms-dark: #333;
    --dms-white: #ffffff;
    --dms-accent: #d32f2f; /* Professional Red for CTA */
    --header-height: 70px;
}

header {
    background-color: var(--dms-white);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 5%;
}

.logo {
    font-weight: bold;
    font-size: 1.5rem;
    color: var(--dms-dark);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
}

nav {
    display: flex;
    gap: 20px;
    align-items: center;
}

nav a {
    text-decoration: none;
    color: var(--dms-dark);
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

nav a:hover {
    color: var(--dms-accent);
}

/* Persistent CTA Button */
.nav-cta {
    background-color: var(--dms-accent);
    color: white !important;
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: bold;
    transition: transform 0.2s ease, background-color 0.3s ease;
}

.nav-cta:hover {
    background-color: #b71c1c;
    transform: scale(1.05);
}

/* Mobile Responsiveness: Basic Stack */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        height: auto;
        padding: 15px;
    }
    nav {
        margin-top: 10px;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }
}