/* Common Styles - Minimal Design System Base */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    line-height: 1.7;
    color: #1d1d1f;
    background: #ffffff;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography Base */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: #1d1d1f;
    line-height: 1.2;
}

h1 {
    font-size: 3em;
    letter-spacing: -1px;
}

h2 {
    font-size: 2em;
}

h3 {
    font-size: 1.4em;
}

p {
    line-height: 1.8;
    margin-bottom: 16px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    background: #000;
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    transition: background 0.3s;
    font-size: 1em;
}

.btn:hover {
    background: #333;
}

/* Section Spacing */
.section {
    margin-bottom: 50px;
}

.section-title {
    font-size: 2em;
    font-weight: 700;
    margin-bottom: 20px;
    color: #000;
    text-align: center;
}

/* Responsive Typography */
@media (max-width: 768px) {
    h1 {
        font-size: 2em;
    }

    h2 {
        font-size: 1.5em;
    }

    h3 {
        font-size: 1.2em;
    }

    .section-title {
        font-size: 1.5em;
    }
}