:root{--blue: #1877d1;--blue-dark: #135ea8;--ink: #172431;--muted: #6b7a89;--bg: #f4f7fb;--card: #fff;--border: #e2e8f0;--green: #128a56;--danger: #c0392b}*{box-sizing:border-box}html,body,#root{margin:0;height:100%}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);-webkit-tap-highlight-color:transparent}h2{font-size:15px;margin:6px 0 8px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}.muted{color:var(--muted)}.small{font-size:13px}.tiny{font-size:12px}.center{text-align:center}.btn{border:1px solid var(--border);background:#fff;color:var(--ink);border-radius:12px;padding:12px 14px;font-size:15px;font-weight:700;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:6px}.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}.btn.primary:disabled{opacity:.55}.btn.ghost{background:#fff}.btn.sm{padding:8px 12px;font-size:14px;border-radius:10px}.btn.block{width:100%;margin-top:8px}.btn.link{background:none;border:none;color:var(--blue);font-weight:700}.login-wrap{min-height:100%;display:grid;place-items:center;padding:20px}.login-card{background:#fff;border:1px solid var(--border);border-radius:18px;padding:26px 22px;width:100%;max-width:360px;box-shadow:0 10px 40px #143c7814}.brand-lg{font-size:26px;font-weight:900}.brand-lg span{color:var(--blue)}.brand-lg em{font-style:normal;color:var(--muted);font-weight:800;font-size:20px}.login-card label{display:block;font-size:13px;color:var(--muted);margin:14px 0 6px}.mobile-row{display:flex;align-items:center;border:1px solid var(--border);border-radius:12px;overflow:hidden}.mobile-row span{padding:12px;background:#f1f5f9;color:var(--muted);font-weight:700}.mobile-row input,.code-input,.inp{border:none;outline:none;padding:12px;font-size:16px;width:100%}.code-input{border:1px solid var(--border);border-radius:12px;letter-spacing:8px;text-align:center;font-size:22px}.login-card .btn.primary{width:100%;margin-top:16px}.err{color:var(--danger);font-size:14px;margin-top:12px}.app{min-height:100%;display:flex;flex-direction:column}.hdr{position:sticky;top:0;z-index:5;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:calc(env(safe-area-inset-top) + 12px) 16px 12px}.hdr .brand{font-weight:900;font-size:18px}.hdr .brand span{color:#bfe0ff}.hdr .tiny{opacity:.9}.hdr .btn.ghost{background:#ffffff29;border-color:transparent;color:#fff}.main{padding:14px 14px calc(env(safe-area-inset-bottom) + 24px);flex:1}.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:14px;margin-bottom:12px}.card.mine{border-color:var(--blue);box-shadow:0 2px #1877d11f}.card-top{display:flex;align-items:center;justify-content:space-between}.card-top b{font-size:17px}.pill{font-size:12px;font-weight:800;padding:3px 10px;border-radius:999px}.pill.open{background:#eef3f8;color:var(--muted)}.pill.mine{background:#e3f0fb;color:var(--blue-dark)}.card .sub{color:var(--muted);font-size:13px;margin-top:4px}.items{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}.items span{background:#f1f5f9;border-radius:8px;padding:3px 8px;font-size:13px}.row2{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:8px}.sheet-back{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f1e3266;display:flex;align-items:flex-end;z-index:20}.sheet{background:#fff;width:100%;max-height:82vh;border-radius:18px 18px 0 0;display:flex;flex-direction:column;padding:14px 14px calc(env(safe-area-inset-bottom) + 14px)}.sheet-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.sheet-head .x,.x{background:none;border:none;font-size:18px;cursor:pointer;color:var(--muted)}.chat-box{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:8px;padding:4px;min-height:120px}.chat-msg{max-width:80%;padding:8px 11px;border-radius:14px;font-size:14px}.chat-msg .who{font-size:11px;opacity:.7;margin-bottom:2px}.chat-msg.mine{align-self:flex-end;background:var(--blue);color:#fff}.chat-msg.theirs{align-self:flex-start;background:#eef2f6}.chat-msg img{max-width:100%;border-radius:10px;margin-top:6px;display:block}.chat-row{display:flex;gap:8px;align-items:center;margin-top:8px}.chat-row .inp{flex:1;border:1px solid var(--border);border-radius:12px}.toast{position:fixed;left:50%;transform:translate(-50%);bottom:calc(env(safe-area-inset-bottom) + 18px);background:var(--ink);color:#fff;padding:12px 18px;border-radius:12px;font-size:14px;font-weight:600;z-index:30;max-width:90%;text-align:center}.cod-bar{background:#fff7e6;border:1px solid #f2c66d;border-radius:10px;padding:8px 10px;margin:8px 0 0;font-size:14px;color:#8a5a00}.cod-check{display:flex;align-items:center;gap:8px;font-size:14px;margin:8px 2px 0;cursor:pointer}.cod-check input{width:18px;height:18px;accent-color:var(--blue)}.btn.block{width:100%;margin-top:6px}.fail-box{border:1px solid var(--border, #e3e8ee);border-radius:10px;padding:8px;margin-top:6px;display:flex;flex-direction:column;gap:2px}