/* KNPM 共用設計變數與基礎樣式（index.php / menu.php 共用） */
:root {
    --bg: #f6f8fc;
    --surface: #ffffff;
    --ink: #0f172a;
    --ink-soft: #475569;
    --muted: #8a94a6;
    --line: #e8edf6;
    --line-strong: #d8e0ee;
    --brand: #2563eb;
    --brand-dark: #1d4ed8;
    --radius: 18px;
    --shadow-1: 0 1px 2px rgba(15, 23, 42, .05);
    --shadow-2: 0 12px 28px rgba(15, 23, 42, .10);
    --ease: .22s cubic-bezier(.4, 0, .2, 1);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang HK', 'Noto Sans TC', Roboto, sans-serif;
    color: var(--ink);
    background:
        radial-gradient(1200px 600px at 100% -10%, #eaf1ff 0%, rgba(234, 241, 255, 0) 60%),
        radial-gradient(900px 500px at -10% 110%, #eef7ff 0%, rgba(238, 247, 255, 0) 55%),
        var(--bg);
}