:root{color:#17202a;background:#f5f7fb;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5}*{box-sizing:border-box}body{margin:0}main{max-width:760px;margin:auto;padding:28px 18px 48px}header{margin-bottom:22px}.eyebrow{letter-spacing:.14em;color:#60708a;font-size:.75rem;font-weight:700}h1{margin:.2rem 0;font-size:2rem}h2{margin:0;font-size:1.1rem}header p,.muted,footer,.rule-hint{color:#65738a}.tool-list{gap:12px;display:grid}.tool-item{text-align:left;cursor:pointer;color:#17202a;background:#fff;border:0;border-radius:16px;align-items:center;gap:14px;width:100%;padding:18px;display:flex;box-shadow:0 4px 18px #1c4f8a0d}.tool-item strong,.tool-item small{display:block}.tool-item small{color:#65738a;margin-top:3px}.tool-icon{color:#1264d6;background:#eaf2ff;border-radius:12px;place-items:center;width:42px;height:42px;font-size:1.5rem;display:grid}.arrow{color:#8b98aa;margin-left:auto;font-size:1.8rem}.tool-item.disabled{opacity:.55;cursor:default}.home footer{text-align:left;margin-top:28px}.page-header{min-height:96px;position:relative}.page-header>div{max-width:100%;padding-left:46px}.home-button{color:#1264d6;cursor:pointer;background:#fff;border:1px solid #d8dfeb;border-radius:9px;place-items:center;width:32px;height:32px;padding:0;font-size:1.35rem;line-height:1;display:grid;position:absolute;top:20px;left:0}.home-button.current{color:#8b98aa;cursor:default;background:#eef2f7}.tabs{background:#e8edf5;border-radius:14px;margin-bottom:16px;padding:4px;display:flex}.tabs button{color:#60708a;cursor:pointer;background:0 0;border:0;border-radius:10px;flex:1;padding:12px;font-size:1rem}.tabs .active{color:#1264d6;background:#fff;font-weight:700;box-shadow:0 2px 8px #1c4f8a18}.card{background:#fff;border-radius:18px;margin-bottom:12px;padding:20px;box-shadow:0 4px 18px #1c4f8a0d}.section-title,.modal-header{justify-content:space-between;align-items:center;margin-bottom:18px;display:flex}.clear-button{color:#526078;cursor:pointer;background:#fff;border:1px solid #d8dfeb;border-radius:8px;padding:5px 10px;font-size:.8rem}.grid{gap:12px;display:grid}.grid.two{grid-template-columns:repeat(2,1fr)}.grid.three{grid-template-columns:repeat(3,1fr)}label{color:#526078;font-size:.9rem;display:block;position:relative}input{background:#fbfcfe;border:1px solid #d8dfeb;border-radius:10px;width:100%;margin-top:6px;padding:13px 34px 13px 12px;font-size:1.05rem}label small{color:#8995a8;position:absolute;bottom:13px;right:11px}.result{background:#eef5ff;border-radius:14px;margin-top:18px;padding:18px}.result.negative{background:#fff0f0}.result span,.result b{color:#526078;display:block}.result strong{margin:3px 0;font-size:2rem;display:block}.result.positive strong{color:#087443}.result.negative strong{color:#c43c3c}details{margin-top:14px}summary{cursor:pointer;color:#1264d6}.rule-hint{text-align:center;font-size:.85rem}.rule-hint button{color:#1264d6;cursor:pointer;background:0 0;border:0}.modal-backdrop{z-index:5;background:#17202a66;place-items:center;padding:18px;display:grid;position:fixed;inset:0}.modal{background:#fff;border-radius:16px;width:min(100%,460px);padding:20px;box-shadow:0 16px 50px #17202a40}.close-button{width:32px;height:32px;box-shadow:none;appearance:none;background:0 0;border:0;border-radius:50%;padding:0;font-size:1.7rem;line-height:1}.close-button:hover{background:#eef2f7}.close-button:focus-visible{outline-offset:2px;outline:2px solid #1264d6}.modal .grid{margin-top:8px}.modal-actions{gap:10px;margin-top:14px;display:flex}.modal-actions button{flex:1}.init-button{color:#526078;cursor:pointer;background:#fff;border:1px solid #d8dfeb;border-radius:10px;padding:12px;font-size:1rem}.confirm-button{color:#fff;cursor:pointer;background:#1264d6;border:0;border-radius:10px;width:100%;margin-top:0;padding:12px;font-size:1rem}footer{text-align:center;margin-top:20px;font-size:.85rem}@media (width<=560px){main{padding:22px 14px 38px}.grid.three{grid-template-columns:1fr}h1{font-size:1.7rem}.result strong{font-size:1.8rem}.modal-backdrop{align-items:end}.modal{border-radius:16px 16px 0 0}}