:root {
    --industrial-dark: #121212;
    --industrial-grey: #242424;
    --steel: #4a5568;
    --concrete: #e2e8f0;
    --industry-orange: #c53008;
    /* Deepened for WCAG AA Contrast compliance */
    --text-main: #1a202c;
    --text-muted: #4a5568;
    --bg-site: #ffffff;
    --accent: var(--industry-orange);
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.7;
    color: var(--text-main);
    margin: 0;
    background-color: var(--bg-site);
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
    font-family: 'Roboto Slab', serif;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    font-weight: 900;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

header {
    background: var(--industrial-dark);
    color: white;
    padding: 2rem 0;
    border-bottom: 8px solid var(--accent);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.branding {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}


.branding img {
    height: 42px;
    width: auto;
    transition: transform 0.3s;
}

.branding img:hover {
    transform: scale(1.02);
}

/* Changed to silver for contrast */
nav {
    display: flex;
    gap: 2rem;
}

nav a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    transition: color 0.2s;
}

nav a:hover,
nav a.active {
    color: white;
}

.hero-section {
    background: var(--industrial-dark);
    color: white;
    padding: 4rem 0;
    border-bottom: 2px solid var(--industrial-grey);
}

h1 {
    font-size: 3rem;
    margin: 0;
    line-height: 1.1;
}

.technical-label {
    display: inline-block;
    background: var(--accent);
    color: white;
    padding: 2px 10px;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: 1rem;
    border-left: 3px solid var(--industrial-dark);
}

.technical-block {
    border: 2px solid black;
    padding: 3rem;
    margin: 3rem 0;
    position: relative;
    background: #fcfcfc;
}

.technical-block::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    width: 50px;
    height: 50px;
    border-top: 5px solid var(--accent);
    border-left: 5px solid var(--accent);
}

.btn-industrial {
    display: inline-flex;
    align-items: center;
    background: var(--industrial-dark);
    color: white;
    padding: 1rem 2rem;
    text-decoration: none;
    font-weight: 800;
    text-transform: uppercase;
    font-size: 0.8rem;
    border: 2px solid var(--industrial-dark);
    transition: all 0.3s;
}

.btn-industrial:hover {
    background: transparent;
    color: var(--industrial-dark);
}

.btn-industrial.accent {
    background: var(--accent);
    border-color: var(--accent);
}

.btn-industrial.accent:hover {
    background: var(--industrial-dark);
    border-color: var(--industrial-dark);
    color: white;
}

.city-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.city-link {
    background: #f7fafc;
    border: 1px solid var(--concrete);
    padding: 1rem;
    text-decoration: none;
    color: var(--text-main);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s;
    text-align: center;
}

.city-link:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: white;
}

.geological-info {
    background: var(--industrial-grey);
    color: white;
    padding: 2.5rem;
    margin: 2rem 0;
    border-left: 10px solid var(--accent);
}

.geological-info h2,
.geological-info h3 {
    color: var(--accent);
    margin-top: 0;
}

footer {
    background: var(--industrial-dark);
    color: white;
    padding: 5rem 0 3rem;
    margin-top: 5rem;
    border-top: 15px solid var(--industrial-grey);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
}

.footer-logo {
    font-family: 'Roboto Slab', serif;
    font-size: 1.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
}

.footer-heading {
    color: white;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
    display: block;
    border-bottom: 2px solid var(--accent);
    padding-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    display: block;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
}

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

.contact-info {
    font-weight: 600;
    color: white;
    margin-top: 1rem;
    display: block;
    text-decoration: none;
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    h1 {
        font-size: 2rem !important;
        word-wrap: break-word;
    }

    h2 {
        font-size: 1.6rem;
        word-wrap: break-word;
    }

    h3 {
        font-size: 1.4rem;
    }

    .header-content {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }

    nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }

    nav a {
        font-size: 0.75rem;
    }

    .hero-section {
        padding: 3rem 0 !important;
    }

    .technical-block {
        padding: 1.5rem;
        margin: 2rem 0;
    }

    .technical-block::before {
        display: none;
    }

    .city-grid {
        grid-template-columns: 1fr !important;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .branding img {
        height: 35px;
    }

    .responsive-grid {
        grid-template-columns: 1fr !important;
        gap: 2rem !important;
    }

    .responsive-flex {
        flex-direction: column !important;
        gap: 1.5rem !important;
        align-items: flex-start !important;
    }

    .mobile-hide {
        display: none !important;
    }

    .geological-info {
        padding: 1.5rem;
    }

    /* Consent Banner Responsiveness */
    .cookie-banner-content {
        grid-template-columns: 1fr !important;
        gap: 1.5rem !important;
        padding: 1.5rem !important;
        bottom: 10px !important;
        left: 10px !important;
        right: 10px !important;
    }

    .cookie-banner-actions {
        width: 100%;
        display: flex !important;
        flex-direction: column !important;
        gap: 0.75rem !important;
    }

    .cookie-banner-actions button {
        width: 100% !important;
        margin: 0 !important;
        padding: 1rem !important;
    }
}