/* Basic Reset & Body Styling */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif; /* Using Inter for Notion-like feel */
    line-height: 1.6;
    color: #333;
    background-color: #f8f8f8; /* Light background */
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 20px;
}

/* Header Navigation */
.header-nav {
    background-color: #fff;
    border-bottom: 1px solid #eee;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.brand-name {
    font-size: 1.5em;
    font-weight: 600;
    color: #222;
}

.header-nav nav ul {
    list-style: none;
}

.header-nav nav ul li {
    display: inline-block;
    margin-left: 25px;
}

.header-nav nav ul li a {
    text-decoration: none;
    color: #555;
    font-weight: 500;
    transition: color 0.3s ease;
}

.header-nav nav ul li a:hover {
    color: #000;
}

/* Hero Section */
.hero-section {
    background-color: #fdfdfd;
    padding: 80px 0;
    text-align: center;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    text-align: left;
}

.hero-text {
    flex: 1;
}

.hero-text h2 {
    font-size: 3em;
    margin-bottom: 20px;
    line-height: 1.1;
    color: #222;
}

.hero-text p {
    font-size: 1.1em;
    margin-bottom: 30px;
    color: #555;
}

.newsletter-form {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.newsletter-form input[type="email"] {
    flex: 1;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1em;
    outline: none;
}

.newsletter-form button {
    padding: 12px 25px;
    background-color: #000; /* Dark button for contrast */
    color: #fff;
    border: none;
    border-radius: 5px;
    font-size: 1em;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.newsletter-form button:hover {
    background-color: #333;
}

.small-text {
    font-size: 0.9em;
    color: #777;
}

.hero-illustration {
    flex: 0 0 400px; /* Fixed width for illustration */
    text-align: center;
}

.hero-illustration img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    /* Basic Notion-style placeholder - you'd replace this with your actual SVG */
    border: 1px solid #ccc;
    border-radius: 8px;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

/* Philosophy Section & Product Section Common Styling */
.philosophy-section, .products-section {
    padding: 60px 0;
    text-align: center;
    background-color: #fdfdfd;
    border-top: 1px solid #eee;
}

.philosophy-section h3, .products-section h3 {
    font-size: 2em;
    margin-bottom: 20px;
    color: #222;
}

.philosophy-section p, .products-section p {
    font-size: 1.05em;
    margin-bottom: 40px;
    color: #555;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Features Grid (Philosophy Section) */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.feature-item {
    text-align: center;
    padding: 20px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.feature-item img {
    width: 60px; /* Size for icon placeholders */
    height: 60px;
    margin-bottom: 15px;
    filter: grayscale(100%); /* Make icons black and white */
    opacity: 0.7;
}

.feature-item h4 {
    font-size: 1.2em;
    margin-bottom: 10px;
    color: #222;
}

.feature-item p {
    font-size: 0.95em;
    color: #666;
    margin-bottom: 0; /* Override default margin */
}

/* Product Showcase */
.product-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.product-item {
    text-align: center;
    padding: 20px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.product-item img {
    max-width: 120px; /* Size for product illustrations */
    height: auto;
    margin-bottom: 15px;
    filter: grayscale(100%); /* Make product illustrations black and white */
    opacity: 0.7;
}

.product-item-img {
    font-size: xx-large;
}

.product-item h4 {
    font-size: 1.2em;
    margin-bottom: 8px;
    color: #222;
}

.product-item p {
    font-size: 0.95em;
    color: #666;
    margin-bottom: 0; /* Override default margin */
}

.final-note {
    margin-top: 40px;
    font-style: italic;
    color: #777;
    font-size: 1.1em;
}

/* Footer */
.footer {
    background-color: #222;
    color: #ccc;
    padding: 30px 0;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.footer .brand-name {
    color: #fff;
    font-size: 1.2em;
}

.footer .copyright {
    font-size: 0.9em;
}

.social-links a {
    color: #ccc;
    font-size: 1.5em;
    margin: 0 10px;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: #fff;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-nav .container {
        flex-direction: column;
    }
    .header-nav nav ul {
        margin-top: 15px;
        padding: 0;
    }
    .header-nav nav ul li {
        margin: 0 10px;
    }

    .hero-content {
        flex-direction: column-reverse; /* Text above illustration on mobile */
        text-align: center;
    }

    .hero-illustration {
        margin-bottom: 40px;
        flex: none; /* Remove fixed width */
    }

    .hero-text h2 {
        font-size: 2.2em;
    }

    .newsletter-form {
        flex-direction: column;
    }

    .newsletter-form button {
        width: 100%;
    }

    .features-grid, .product-showcase {
        grid-template-columns: 1fr; /* Stack items vertically */
    }
}