/* Base Variables matching Ludo-Professional Utility aesthetic */
:root {
    --bg-color: #F8F9FA; /* WarmOffWhite */
    --primary-color: #0066FF; /* ElectricBlue */
    --secondary-color: #FFD166; /* SunnyYellow */
    --text-color: #1A1A1A;
    --text-light: #666666;
    --card-bg: #FFFFFF;
    --spacing-unit: 8px;
    --border-radius: 16px;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: #004Cbf;
}

/* Layout */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 calc(var(--spacing-unit) * 3);
}

header {
    background-color: var(--card-bg);
    padding: calc(var(--spacing-unit) * 2) 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

nav ul {
    list-style: none;
    display: flex;
    gap: calc(var(--spacing-unit) * 3);
}

main {
    flex-grow: 1;
    padding: calc(var(--spacing-unit) * 6) 0;
}

/* Sections & Components */
.hero {
    text-align: center;
    padding: calc(var(--spacing-unit) * 8) 0;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: calc(var(--spacing-unit) * 4);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 3);
    border-radius: calc(var(--border-radius) / 2);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.2);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--text-color);
}

.btn-secondary:hover {
    color: var(--text-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 209, 102, 0.3);
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: calc(var(--spacing-unit) * 4);
    margin-top: calc(var(--spacing-unit) * 6);
}

.feature-card {
    background: var(--card-bg);
    padding: calc(var(--spacing-unit) * 3);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
    text-align: center;
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.content-section {
    background: var(--card-bg);
    padding: calc(var(--spacing-unit) * 4);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
}

.content-section p {
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.content-section ul {
    margin-left: calc(var(--spacing-unit) * 3);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

/* Footer */
footer {
    background-color: var(--text-color);
    color: white;
    padding: calc(var(--spacing-unit) * 4) 0;
    margin-top: auto;
}

footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: calc(var(--spacing-unit) * 2);
}

.footer-links {
    display: flex;
    gap: calc(var(--spacing-unit) * 2);
}

.footer-links a {
    color: #cccccc;
    font-size: 0.9rem;
}

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

/* Responsive */
@media (max-width: 600px) {
    h1 {
        font-size: 2rem;
    }
    nav ul {
        flex-direction: column;
        gap: calc(var(--spacing-unit));
        display: none; /* simple mobile view */
    }
    footer .container {
        flex-direction: column;
        text-align: center;
    }
}