:root{--shell:#f2faf6;--ink:#12312b;--ink-soft:#4a6a62;--mint:#c4ebdc;--leaf:#1f8a66;--leaf-deep:#14684c;--husk:#e7f3ed;--alert:#b3462e;--card:#fff}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--shell);color:var(--ink);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}main.wrap{min-height:100dvh;display:grid;place-items:center;padding:24px}.card{width:100%;max-width:460px;background:var(--card);border:1px solid var(--husk);border-radius:16px;padding:32px;box-shadow:0 20px 50px -30px rgba(18,49,43,.35)}.brand{display:flex;align-items:center;gap:10px;margin-bottom:22px}.brand-dot{width:34px;height:34px;border-radius:50%;background:radial-gradient(circle at 32% 30%,#fff 0 18%,var(--mint) 19% 100%);border:2px solid var(--leaf);flex:none}.brand h1{font-size:17px;margin:0;letter-spacing:-.01em}.brand small{display:block;font-size:12.5px;font-weight:400}.brand small,.who{color:var(--ink-soft)}.who{font-size:13px;margin:0 0 16px}.who b{color:var(--ink);font-weight:600}.drop{border:2px dashed #9fd2bd;background:#f7fcfa;border-radius:12px;padding:34px 18px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s}.drop.dragging,.drop:hover{border-color:var(--leaf);background:#eef9f3}.drop p{margin:0;font-size:14.5px}.drop .hint{margin-top:6px;font-size:12.5px;color:var(--ink-soft)}.filename{margin-top:14px;font-size:13.5px;background:var(--mint);color:var(--ink);border-radius:8px;padding:8px 12px;display:flex;justify-content:space-between;gap:8px;align-items:center}.filename button{border:0;background:transparent;color:var(--ink-soft);cursor:pointer;font-size:13px;padding:0}button.go{margin-top:16px;width:100%;border:0;border-radius:10px;background:var(--leaf);color:#fff;font-size:15px;font-weight:600;padding:13px;cursor:pointer;transition:background .15s}button.go:hover:enabled{background:var(--leaf-deep)}button.go:disabled{opacity:.5;cursor:default}button.signin,button.signout{border:0;background:transparent;color:var(--leaf-deep);font-size:13px;cursor:pointer;padding:0;text-decoration:underline;text-underline-offset:3px}button.signin{width:100%;background:var(--leaf);color:#fff;text-decoration:none;border-radius:10px;padding:13px;font-size:15px;font-weight:600}button.signin:hover{background:var(--leaf-deep)}.report{margin-top:18px;border-top:1px solid var(--husk);padding-top:16px;font-size:14px}.report .big{font-size:28px;font-weight:700;letter-spacing:-.02em;color:var(--leaf-deep)}.report .big small{font-size:14px;font-weight:500;color:var(--ink-soft);margin-left:6px}.report ul{margin:10px 0 0;padding:0;list-style:none;color:var(--ink-soft);font-size:13.5px}.report li{padding:2px 0}.report a{color:var(--leaf-deep);font-weight:600}.error{margin-top:14px;color:var(--alert);font-size:13.5px;background:#fdf1ee;border:1px solid #f3d5cc;border-radius:8px;padding:10px 12px}.foot{margin-top:20px;display:flex;justify-content:space-between;align-items:center}.foot span{font-size:12px;color:var(--ink-soft)}@media (prefers-reduced-motion:reduce){*{transition:none!important}}.target{display:flex;align-items:center;gap:10px;font-size:14px;margin-bottom:14px;color:var(--ink-soft)}.target select{flex:1 1;font:inherit;color:var(--ink);background:#f7fcfa;border:1px solid #9fd2bd;border-radius:8px;padding:9px 10px;cursor:pointer}.target select:focus{outline:2px solid var(--leaf);outline-offset:1px}.howto{margin:0 0 14px;border:1px solid var(--husk);border-radius:10px;padding:10px 14px;background:#fbfefc}.howto ol{margin:10px 0 6px;padding-left:18px}.howto li{padding:2px 0}.howto p{margin:8px 0 2px}.howto{margin:-4px 0 16px;font-size:13px;color:var(--ink-soft)}.howto summary{cursor:pointer;color:var(--leaf-deep);font-weight:600;font-size:13px;list-style-position:inside}.howto ol{margin:8px 0 6px;padding-left:20px}.howto li{padding:1px 0}.howto p{margin:6px 0 0}