:root{--ink:#14213d;--muted:#68758c;--blue:#356dff;--cyan:#36c9e8;--line:#e5eaf3;--bg:#f5f8ff}*{box-sizing:border-box}body{margin:0;background:linear-gradient(180deg,#edf4ff 0,#f8faff 420px,#f7f9fc 100%);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink)}.topbar{height:76px;display:flex;align-items:center;justify-content:space-between;max-width:1100px;margin:auto;padding:0 24px}.brand{font-size:21px;font-weight:850;letter-spacing:-.7px;color:var(--ink);text-decoration:none}.brand span:last-child{color:var(--blue)}.logo{display:inline-grid;place-items:center;width:34px;height:34px;background:#e1eaff;border-radius:11px;margin-right:7px}.badge{font-size:10px;font-weight:800;letter-spacing:1px;color:#356dff;background:#e5edff;border-radius:30px;padding:9px 12px}.wrap{max-width:900px;margin:0 auto;padding:24px 20px 50px}.hero{text-align:center;padding:38px 0 30px}.eyebrow{font-size:11px;font-weight:800;letter-spacing:2px;color:var(--blue)}h1{font-size:clamp(34px,6vw,54px);line-height:1.08;letter-spacing:-2px;margin:16px 0}.hero h1 span{color:var(--blue)}.hero p{max-width:600px;margin:0 auto;color:var(--muted);font-size:15px;line-height:1.7}.mail-card,.inbox-card{background:white;border:1px solid #e8edf6;border-radius:22px;box-shadow:0 15px 45px #1d3b6810;padding:26px;margin:0 0 20px}.card-head,.inbox-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.label{font-size:10px;font-weight:850;letter-spacing:1.4px;color:#6c7b95}.status{font-size:12px;color:var(--muted);margin-top:7px}.inbox-icon{width:44px;height:44px;border-radius:14px;background:#edf3ff;display:grid;place-items:center;font-size:21px}.address-row{display:flex;gap:10px;margin:20px 0 14px}.address-row input{flex:1;min-width:0;background:#f7f9fd;border:1px solid var(--line);border-radius:12px;padding:15px;font-size:15px;color:var(--ink);outline:none}.actions{display:flex;gap:10px;flex-wrap:wrap}button{border:0;border-radius:11px;padding:13px 16px;font-size:13px;font-weight:750;cursor:pointer;transition:transform .15s,opacity .15s}button:hover:not(:disabled){transform:translateY(-1px)}button:disabled{opacity:.45;cursor:not-allowed}.primary{background:linear-gradient(100deg,var(--blue),#5c7bff);color:#fff;box-shadow:0 7px 18px #356dff30}.secondary{background:#eef3ff;color:#315dd0}.danger{background:#fff0f0;color:#c43d4c}.notice{font-size:11px;line-height:1.6;color:#77839a;background:#fafbfe;border-radius:9px;padding:11px 13px;margin-top:18px}.inbox-head h2,.how h2{font-size:20px;margin:0 0 5px;letter-spacing:-.5px}.inbox-head p{font-size:12px;color:var(--muted);margin:0}.count{font-size:11px;font-weight:750;background:#edf3ff;color:#356dff;padding:8px 10px;border-radius:20px;white-space:nowrap}.messages{margin-top:20px}.empty{text-align:center;border:1px dashed #dbe3f0;border-radius:15px;padding:34px 14px;display:flex;align-items:center;gap:8px;flex-direction:column;color:var(--muted);font-size:12px}.empty strong{color:var(--ink);font-size:14px}.empty-icon{font-size:28px;margin-bottom:4px}.message{border:1px solid var(--line);border-radius:12px;padding:14px;margin-bottom:10px;cursor:pointer}.message:hover{background:#fafcff}.message-top{display:flex;justify-content:space-between;gap:10px}.sender{font-size:13px;font-weight:800;overflow-wrap:anywhere}.date{font-size:10px;color:var(--muted);white-space:nowrap}.subject{font-size:12px;margin-top:7px}.body{font-size:12px;line-height:1.6;color:#56637a;white-space:pre-wrap;overflow-wrap:anywhere;margin-top:12px;border-top:1px solid var(--line);padding-top:12px}.provider{text-align:center;color:#8a95a8;font-size:10px;margin-top:20px}.provider a,footer a{color:#356dff;text-decoration:none}.how{padding:28px 0}.how h2{text-align:center;margin-bottom:18px}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.steps>div{background:#fff;border:1px solid var(--line);border-radius:15px;padding:18px}.steps b{font-size:11px;color:var(--blue);background:#edf3ff;padding:7px 9px;border-radius:8px}.steps h3{font-size:14px;margin:15px 0 6px}.steps p{font-size:12px;line-height:1.6;color:var(--muted);margin:0}footer{border-top:1px solid var(--line);padding-top:20px;text-align:center}footer a{font-size:12px;margin:0 10px}footer p{font-size:10px;color:#8a95a8;margin-top:15px}#toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:#14213d;color:white;padding:11px 16px;border-radius:10px;font-size:12px;opacity:0;pointer-events:none;transition:opacity .2s;max-width:90%;text-align:center}#toast.show{opacity:1}@media(max-width:600px){.topbar{height:66px;padding:0 16px}.badge{font-size:8px;letter-spacing:.5px;padding:8px}.wrap{padding:12px 13px 35px}.hero{padding:30px 0 24px}.hero p{font-size:13px}.mail-card,.inbox-card{padding:18px;border-radius:17px}.address-row{gap:7px}.address-row input{font-size:12px;padding:13px 10px}.address-row button{padding:12px}.actions button{flex:1}.steps{grid-template-columns:1fr}.steps>div{padding:15px}.message-top{flex-direction:column;gap:5px}.date{white-space:normal}}