:root{--bg:#fff;--ink:#1a1a1a;--ink-soft:#6e6e6e;--accent:#262626;--accent-2:#4a4a4a;--accent-soft:#f2f2f2;--tone-soft:#f6f6f6;--tone-border:#e2e2e2;--card:#fff;--line:#e6e6e6;--shadow:0 2px 4px rgba(0,0,0,.04),0 12px 32px rgba(0,0,0,.07)}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:IBM Plex Sans Thai,-apple-system,Segoe UI,sans-serif;font-size:18px;line-height:1.7;-webkit-font-smoothing:antialiased}.wrap{max-width:760px;margin:0 auto;padding:40px 20px 80px}.hero{text-align:center;margin-bottom:36px}.hero .mark{width:64px;height:64px;margin:0 auto 16px;border-radius:20px;display:grid;place-items:center;background:linear-gradient(150deg,var(--accent),var(--accent-2));box-shadow:var(--shadow)}.hero h1{font-size:2rem;font-weight:700;letter-spacing:-.01em;margin:0 0 8px}.hero p{font-size:1.05rem;color:var(--ink-soft);margin:0}.hands{display:grid;grid-template-columns:1fr 1fr;grid-gap:16px;gap:16px;margin-bottom:24px}@media (max-width:520px){.hands{grid-template-columns:1fr}}.zone{position:relative;border:2px dashed var(--line);border-radius:20px;background:#fbfbfb;padding:22px 18px;text-align:center;cursor:pointer;transition:border-color .2s,background .2s,transform .1s;overflow:hidden}.zone:hover{border-color:var(--accent);background:var(--accent-soft)}.zone:active{transform:scale(.99)}.zone.filled{border-style:solid;border-color:var(--accent);padding:0;background:#111;min-height:220px}.zone .label{font-weight:600;font-size:1.05rem;margin-bottom:4px}.zone .hint{font-size:.9rem;color:var(--ink-soft)}.zone .icon{font-size:2rem;display:block;margin-bottom:10px;filter:grayscale(1)}.zone img.preview{width:100%;height:100%;min-height:220px;object-fit:cover;display:block}.zone .retag{position:absolute;top:10px;left:10px;background:rgba(0,0,0,.7);color:#fff;font-size:.82rem;font-weight:500;padding:4px 12px;border-radius:999px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.zone input{display:none}.btn{display:block;width:100%;border:none;border-radius:16px;padding:17px 20px;font-family:inherit;font-size:1.12rem;font-weight:600;color:#fff;background:linear-gradient(150deg,var(--accent),var(--accent-2));cursor:pointer;box-shadow:var(--shadow);transition:transform .1s,opacity .2s}.btn:hover:not(:disabled){transform:translateY(-1px)}.btn:disabled{opacity:.45;cursor:not-allowed}.error{margin-top:16px;background:#f4f4f4;color:#b3261e;border:1px solid #e2e2e2;border-radius:12px;padding:14px 16px;font-size:.98rem}.loading{text-align:center;padding:48px 0;color:var(--ink-soft)}.spinner{width:44px;height:44px;margin:0 auto 18px;border:3px solid var(--accent-soft);border-top-color:var(--accent);border-radius:50%;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.results{margin-top:12px;animation:rise .5s ease both}@keyframes rise{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.result-card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:22px 24px;margin-bottom:16px;box-shadow:var(--shadow)}.result-card h3{display:flex;align-items:center;gap:10px;font-size:1.2rem;font-weight:600;margin:0 0 10px}.result-card h3 .em{font-size:1.35rem;filter:grayscale(1)}.result-card p{margin:0;color:var(--ink)}.result-card.overview{border-color:transparent;background:linear-gradient(160deg,var(--accent-soft),#fff)}.result-card.tips{background:var(--tone-soft);border-color:var(--tone-border)}.result-card.tips ul{margin:0;padding-left:22px}.result-card.tips li{margin-bottom:6px}.disclaimer{text-align:center;font-size:.85rem;color:var(--ink-soft);margin-top:28px}.reset{display:block;margin:20px auto 0;background:none;border:1px solid var(--line);color:var(--accent);border-radius:14px;padding:12px 24px;font-family:inherit;font-size:1rem;font-weight:500;cursor:pointer}.reset:hover{background:var(--accent-soft)}.login-card{max-width:380px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:24px;padding:36px 28px;text-align:center;box-shadow:var(--shadow)}.login-card .lock{font-size:2rem;filter:grayscale(1);margin-bottom:12px}.login-label{display:block;font-size:1rem;color:var(--ink-soft);margin-bottom:16px}.login-input{width:100%;border:1px solid var(--line);border-radius:14px;padding:15px 16px;font-family:inherit;font-size:1.05rem;color:var(--ink);background:#fbfbfb;margin-bottom:14px;outline:none;transition:border-color .2s,background .2s}.login-input:focus{border-color:var(--accent);background:#fff}.logout{display:block;margin:40px auto 0;background:none;border:none;color:var(--ink-soft);font-family:inherit;font-size:.9rem;text-decoration:underline;cursor:pointer}.logout:hover{color:var(--ink)}