:root{color-scheme:light;font-family:system-ui,sans-serif;color:#243429;background:#f5f3ed}
*{box-sizing:border-box}body{margin:0;padding:24px}main{max-width:680px;margin:24px auto;background:#fffdf8;border:1px solid #deddd3;border-radius:18px;padding:clamp(20px,5vw,42px)}
h1{font-size:2rem;line-height:1.15}h2{font-size:1.1rem;margin:0 0 12px}p{line-height:1.6}
.eyebrow{font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;color:#61715c}
section{padding:22px 0;border-top:1px solid #e5e3db}label{display:block;line-height:1.5}
input{display:block;width:100%;font:1.25rem monospace;letter-spacing:.08em;margin:12px 0;padding:12px;border:1px solid #6d7b69;border-radius:6px}
button,a{font:inherit}button{background:#2e4e37;color:white;border:1px solid #2e4e37;border-radius:7px;padding:11px 14px;cursor:pointer;min-height:44px}
button:disabled{opacity:.45;cursor:default}button:focus-visible,input:focus-visible,a:focus-visible{outline:3px solid #b17c25;outline-offset:3px}
a{color:#264c31;margin-right:16px}.actions{display:flex;gap:10px;flex-wrap:wrap}.note{font-size:.9rem;color:#586253}
.comparison{font-family:monospace;font-size:clamp(1.1rem,4vw,1.8rem);font-weight:bold;letter-spacing:.05em;overflow-wrap:anywhere;background:#e9efe5;padding:16px;border-radius:6px}
#message{padding:14px;border-left:3px solid #8a9b80;background:#f0f3eb}