/* ============================================================
   site.css — shared styles for the LPS marketing site
   Used by: index.html (home) and contact.html
   Docs pages have their own stylesheet (docs/css/docs.css).
   Edit the theme here once to update the whole site.
   ============================================================ */

:root {
    --primary: #50d199;
    --primary-dark: #3bb47d;
    --accent: #22d3ee;
    --gradient: linear-gradient(135deg, #50d199 0%, #22d3ee 100%);
    --secondary: #2d3748;
    /* Charcoal dark theme — neutral, hue-matched to --darker (was navy #1b2334 / #141b29) */
    --dark: #27282b;
    --darker: #202123;
    --light: #e2e8f0;
    --gray: #a0aec0;
    --dark-gray: #4a5568;
    --card-bg: #303236;
    --success: #50d199;
    --warning: #f59e0b;
    --danger: #ef4444;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    color: var(--light);
    background-color: var(--dark);
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Navigation */
header {
    background-color: var(--darker);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--light);
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo svg {
    width: 32px;
    height: 32px;
}

.logo span {
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--light);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-cta {
    color: var(--primary) !important;
    font-weight: 600 !important;
}

.cta-button {
    background: var(--gradient);
    color: var(--darker);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
    text-decoration: none;
    display: inline-block;
}

.cta-button:hover {
    transform: translateY(-2px);
    filter: brightness(1.06);
    box-shadow: 0 8px 24px rgba(34, 211, 238, 0.25);
}

.mobile-menu {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--light);
}

/* Footer */
footer {
    background-color: var(--darker);
    color: var(--light);
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-column h3 {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: var(--light);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--gray);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 2rem;
    text-align: center;
    color: var(--gray);
    font-size: 0.9rem;
}

/* Responsive navigation (shared by all site pages) */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--darker);
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.3);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu {
        display: block;
    }

    .cta-button.desktop-only {
        display: none;
    }
}