:root{--black:#090909;--muted:#707070;--line:#dedede;--soft:#f6f6f6;--white:#fff}*{box-sizing:border-box}html{font-family:Inter,Arial,sans-serif;color:var(--black);background:#fff}body{margin:0;min-height:100vh}.topbar{height:72px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 1120px)/2));background:#fff;position:sticky;top:0;z-index:10}.brand{font-weight:800;letter-spacing:-1px;font-size:20px;color:#000;text-decoration:none}.brand span{font-weight:400}.live{font-size:11px;font-weight:700;letter-spacing:.08em;display:flex;align-items:center;gap:8px}.live i{display:block;width:8px;height:8px;background:#111;border-radius:50%;box-shadow:0 0 0 4px #e9e9e9}.shell{width:min(1120px,calc(100% - 40px));margin:0 auto;padding:72px 0 90px}.hero{max-width:820px;margin:0 auto 76px;text-align:center}.eyebrow{font-size:11px;font-weight:700;letter-spacing:.16em;margin:0 0 12px;color:#555}.hero h1{font-size:clamp(36px,7vw,68px);line-height:1;letter-spacing:-.055em;margin:0}.subtitle{font-size:16px;color:var(--muted);margin:22px auto 34px;max-width:620px;line-height:1.6}.address-card{border:2px solid #111;text-align:left;background:#fff;box-shadow:8px 8px 0 #111}.address-line{min-height:82px;display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid #bdbdbd;gap:18px}.address-line span{font-size:clamp(17px,3vw,27px);font-weight:600;letter-spacing:-.03em;overflow-wrap:anywhere}.icon-button,.refresh-button,.text-button,.dark-button,.danger-button{font:inherit;cursor:pointer;border:0;background:transparent;font-size:11px;font-weight:800;letter-spacing:.08em}.icon-button{border:1px solid #111;padding:11px 15px;white-space:nowrap}.address-footer{display:flex;align-items:center;justify-content:space-between;padding:16px 22px;font-size:13px}.actions{display:flex;gap:10px}.text-button{padding:12px 14px;border:1px solid #111}.dark-button{padding:12px 16px;background:#111;color:#fff;border:1px solid #111}.section-heading{display:flex;align-items:end;justify-content:space-between;margin-bottom:18px}.section-heading h2{margin:0;font-size:28px;letter-spacing:-.035em}.refresh-button{border-bottom:1px solid #111;padding:8px 0}.inbox-panel{border-top:2px solid #111;min-height:310px}.empty-state{text-align:center;padding:72px 20px;color:var(--muted)}.empty-state h3{margin:18px 0 8px;color:#111}.empty-state p{margin:0}.mail-icon{margin:auto;width:54px;height:54px;border:2px solid #111;display:grid;place-items:center;color:#111;font-size:24px;font-weight:700}.message-list{display:none}.message-item{width:100%;border:0;border-bottom:1px solid var(--line);background:#fff;padding:20px 8px;text-align:left;display:grid;grid-template-columns:minmax(170px,240px) 1fr auto;gap:24px;align-items:center;cursor:pointer;font:inherit}.message-item:hover{background:var(--soft)}.message-item.unread .msg-subject{font-weight:800}.msg-from{font-size:13px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.msg-subject{font-size:14px;margin-bottom:5px}.msg-preview{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.msg-date{font-size:11px;color:var(--muted);white-space:nowrap}dialog{width:min(780px,calc(100% - 28px));max-height:88vh;border:2px solid #111;padding:0;box-shadow:10px 10px 0 #111}dialog::backdrop{background:rgba(0,0,0,.48)}.dialog-head{padding:25px 28px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:20px}.dialog-head h2{margin:6px 0;font-size:25px;letter-spacing:-.03em}.dialog-from,.dialog-date{margin:0;font-size:12px;color:var(--muted)}.close-button{border:0;background:#fff;font-size:32px;line-height:1;cursor:pointer}.message-body{font:14px/1.65 Inter,Arial,sans-serif;white-space:pre-wrap;overflow-wrap:anywhere;padding:26px 28px;margin:0;max-height:48vh;overflow:auto;background:#fff}.attachments{padding:0 28px 20px;display:flex;flex-wrap:wrap;gap:8px}.attachment-button{border:1px solid #111;background:#fff;padding:10px 12px;font:600 11px Inter,Arial,sans-serif;cursor:pointer}.dialog-actions{padding:18px 28px;border-top:1px solid var(--line);display:flex;justify-content:flex-end}.danger-button{border:1px solid #111;padding:11px 14px}.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:#111;color:#fff;padding:12px 18px;font-size:12px;opacity:0;pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:translate(-50%,0)}button:disabled{opacity:.45;cursor:not-allowed}@media(max-width:700px){.topbar{padding:0 20px}.live{font-size:9px}.shell{width:min(100% - 28px,1120px);padding-top:44px}.hero{margin-bottom:56px}.address-line{align-items:flex-start;flex-direction:column}.icon-button{width:100%}.address-footer{align-items:flex-start;flex-direction:column;gap:16px}.actions{width:100%}.actions button{flex:1}.message-item{grid-template-columns:1fr;gap:6px;padding:18px 4px}.msg-date{grid-row:1;justify-self:end}.msg-from{grid-row:1}.msg-content{grid-column:1/-1}.section-heading{align-items:flex-start}.section-heading h2{font-size:23px}}