/* ── reset & base ── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #f5f3f0;
    color: #1e1c1a;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 28px 20px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.app {
    max-width: 820px;
    width: 100%;
    background: #ffffff;
    border-radius: 24px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.06), 0 2px 8px rgba(0, 0, 0, 0.02);
    padding: 44px 40px 48px;
    transition: box-shadow 0.2s;
    border: 1px solid #eeeae6;
}