:root {
    --primary: #0071e3;        /* Xanh Apple Blue */
    --primary-dark: #0056b3;
    --bg-base: #f5f5f7;        /* Nền tảng Apple Gray */
    --bg-card: rgba(255, 255, 255, 0.7);
    --text-primary: #1d1d1f;
    --text-secondary: #86868b;
    --border-color: rgba(0, 0, 0, 0.08);
    --max-width: 1200px;
    --transition-smooth: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: radial-gradient(circle at 50% -20%, #ffffff 0%, #f5f5f7 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.1;
    overflow-x: hidden;
}

section {
    width: 100%;
}