/* --- LITECHAT LANDING PAGE STYLES --- */

/* --- Foundational Styles (from styles.css) --- */
@font-face {
    font-family: 'Helvetica Neue';
    src: url('/fonts/HelveticaNeue-Roman.woff2') format('woff2'),
         url('/fonts/HelveticaNeue-Roman.woff') format('woff');
    font-weight: 400;
    font-style: normal;
}

:root {
    /* Fonts */
    --primary-font: 'Fredoka', sans-serif;
    --secondary-font: 'Helvetica Neue', sans-serif;
    --body-font: 'Inter', sans-serif;

    /* Color Scheme */
    --blue: #0780B5;
    --dark: #061820;
    --dark-grey: #8C9FA7;
    --light-blue: #96D2ED;
    --light: #F4FBFE;
    --white: #fefefe;

    /* Dark Theme (Default) */
    --bg-color: var(--dark);
    --primary-color: var(--blue);
    --primary-color-hover: var(--light-blue);
    --text-color: var(--white);
    --text-color-light: var(--dark-grey);
    --text-color-accent: var(--light-blue);
    --border-color: rgba(115, 210, 237, 0.2);
    --card-bg: rgba(244, 251, 254, 0.05);

    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
}

html, body {
    margin: 0;
    padding: 0;
    font-family: var(--body-font);
    background-color: var(--bg-color);
    color: var(--text-color);
    scroll-behavior: smooth;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Typography --- */
h1, h2 {
    font-family: var(--primary-font);
    font-weight: 500;
    letter-spacing: -1px;
}

h1 { font-size: 56px; line-height: 1.1; }
h2 { font-size: 40px; }
h3 { font-family: var(--secondary-font); font-weight: 700; font-size: 22px; }
p { font-size: 18px; line-height: 1.6; color: var(--text-color-light); }
.subtitle { font-size: 20px; color: var(--text-color-accent); max-width: 650px; margin: 20px auto; }

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius-md);
    text-decoration: none;
    font-family: var(--secondary-font);
    font-weight: 400;
    font-size: 16px;
    letter-spacing: 1px;
    transition: all 0.2s ease-in-out;
    cursor: pointer;
    border: none;
}
.btn-primary { background-color: var(--primary-color); color: var(--white); }
.btn-primary:hover { background-color: var(--primary-color-hover); color: var(--dark); }
.btn-large { padding: 16px 32px; font-size: 18px; }

/* --- Header --- */
.main-header {
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
}
.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-color);
}
.logo img { height: 35px; }
.logo h1 { font-size: 24px; margin: 0; }
nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 30px; }
nav a { color: var(--text-color-light); text-decoration: none; font-size: 16px; }
nav a:hover { color: var(--text-color-accent); }

/* --- Hero Section --- */
.hero {
    padding: 100px 0;
    text-align: center;
}
.hero-content h1 {
    color: var(--text-color);
    max-width: 800px;
    margin: 0 auto;
}
.hero-content .btn { margin-top: 30px; }
.hero-image {
    margin-top: 60px;
}
.hero-image img {
    max-width: 80%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 0 60px -10px rgba(7, 128, 181, 0.2);
}

/* --- Features Section --- */
.features-section {
    padding: 80px 0;
    text-align: center;
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 60px;
    text-align: left;
}
.feature-card {
    background-color: var(--card-bg);
    padding: 30px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    transition: transform 0.2s, box-shadow 0.2s;
}
.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 20px rgba(7, 128, 181, 0.1);
}
.feature-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 20px;
}
.feature-card h3 { color: var(--text-color); margin: 0 0 10px; }
.feature-card p { font-size: 16px; margin: 0; }

/* --- Models Section --- */
.models-section {
    padding: 80px 0;
    text-align: center;
}
.model-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 60px;
    margin-top: 40px;
    flex-wrap: wrap;
}
.model-logos img {
    height: 40px;
    opacity: 0.7;
    transition: opacity 0.2s;
}
.model-logos img:hover {
    opacity: 1;
}

/* --- CTA Section --- */
.cta-section {
    padding: 80px 0;
    text-align: center;
    background-color: var(--card-bg);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}
.cta-section p { max-width: 500px; margin: 20px auto 30px auto; }

/* --- Footer --- */
.main-footer {
    padding: 40px 0;
    text-align: center;
}
.main-footer p { font-size: 14px; margin: 0; }


/* --- Responsive Styles --- */
@media (max-width: 768px) {
    h1 { font-size: 42px; }
    h2 { font-size: 32px; }
    p { font-size: 16px; }
    .subtitle { font-size: 18px; }

    .main-header .container { flex-direction: column; gap: 20px; }
    nav { order: 1; }
    .main-header .btn { order: 2; }

    .hero { padding: 60px 0; }
    .hero-image img { max-width: 100%; }

    .features-section, .models-section, .cta-section { padding: 60px 0; }
}