/* Modern Dark Theme for DV8 AI */

/* -- Root Variables for Colors -- */
:root {
    --primary-bg-color: #121212; /* Very dark grey, almost black */
    --secondary-bg-color: #1E1E1E; /* Slightly lighter grey for cards/sections */
    --primary-accent-color: #00A8E8; /* A vibrant, modern blue */
    --secondary-accent-color: #007EA7; /* A darker shade of blue for hover effects */
    --primary-text-color: #EAEAEA; /* Light grey for readability */
    --secondary-text-color: #B3B3B3; /* Dimmer text for secondary info */
    --header-font-family: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --body-font-family: 'Roboto', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* -- General Body Styles -- */
body {
    font-family: var(--body-font-family);
    line-height: 1.8;
    margin: 0;
    padding: 0;
    background-color: var(--primary-bg-color);
    color: var(--primary-text-color);
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px 0;
}

/* -- Header and Navigation -- */
header {
    background-color: var(--secondary-bg-color);
    padding: 1rem 0;
    border-bottom: 2px solid var(--primary-accent-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    font-family: var(--header-font-family);
    font-weight: 700;
    font-size: 1.8rem;
    color: var(--primary-accent-color);
    text-decoration: none;
}

nav ul {
    padding: 0;
    margin: 0;
    list-style: none;
    display: flex;
}

nav ul li {
    margin-left: 30px;
}

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

nav a:hover, nav a.active {
    color: var(--primary-accent-color);
}

/* -- Main Content -- */
main {
    padding: 40px 0;
    min-height: calc(100vh - 200px); /* Adjust based on header/footer height */
}

h1, h2, h3 {
    font-family: var(--header-font-family);
    color: var(--primary-accent-color);
    margin-bottom: 1rem;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.2rem; }

/* -- Hero Section for Homepage -- */
.hero {
    text-align: center;
    padding: 80px 20px;
    background: linear-gradient(rgba(18, 18, 18, 0.8), rgba(18, 18, 18, 0.8)), url('https://www.gstatic.com/webp/gallery/1.jpg'); /* Placeholder BG */
    background-size: cover;
    background-position: center;
    border-radius: 8px;
}

.hero h1 {
    font-size: 3.5rem;
    color: #FFF;
    margin-bottom: 0.5rem;
}

.hero p {
    font-size: 1.5rem;
    color: var(--secondary-text-color);
    margin-bottom: 2rem;
}

.cta-button {
    background-color: var(--primary-accent-color);
    color: #FFF;
    padding: 15px 30px;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 700;
    transition: background-color 0.3s ease;
}

.cta-button:hover {
    background-color: var(--secondary-accent-color);
}


/* -- Services Page -- */
.service-card {
    background-color: var(--secondary-bg-color);
    padding: 30px;
    margin-bottom: 20px;
    border-radius: 8px;
    border-left: 5px solid var(--primary-accent-color);
}

/* -- Contact Form -- */
.contact-form {
    background-color: var(--secondary-bg-color);
    padding: 40px;
    border-radius: 8px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid #333;
    border-radius: 5px;
    background-color: #2a2a2a;
    color: var(--primary-text-color);
    font-size: 1rem;
}

.contact-form button {
    width: 100%;
    padding: 15px;
    border: none;
    background-color: var(--primary-accent-color);
    color: white;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: 700;
    transition: background-color 0.3s ease;
}

.contact-form button:hover {
    background-color: var(--secondary-accent-color);
}

/* -- Footer -- */
footer {
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
    background-color: var(--secondary-bg-color);
    border-top: 1px solid #333;
}

/* -- Responsive Design -- */
@media (max-width: 768px) {
    .logo { font-size: 1.5rem; }
    nav ul { display: none; } /* Basic responsive menu, would need JS for toggle */
    h1 { font-size: 2.5rem; }
    .hero h1 { font-size: 2.8rem; }
    .hero p { font-size: 1.2rem; }
}