:root{--bg:#f4f6fa;--panel:#fff;--line:#e5e9f0;--ink:#152033;--muted:#6b7688;--accent:#1769e0;--accent2:#0e4fae;--dark:#101827;--danger:#c93636;--shadow:0 16px 50px rgba(18,31,53,.12)}*{box-sizing:border-box}html,body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg)}button,input,textarea,select{font:inherit}button{cursor:pointer}a{color:var(--accent)}.brand{display:flex;align-items:center;gap:10px}.brand.big{justify-content:center;font-size:22px;margin-bottom:24px}.brand-mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(145deg,#2e80f7,#0c4ea8);display:grid;place-items:center;color:white;font-weight:800;box-shadow:0 8px 20px rgba(23,105,224,.22)}.login-page,.setup{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 20% 0,#dceaff 0,transparent 34%),linear-gradient(#f8faff,#eef3f9)}.login-card,.setup-card{background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);padding:34px;width:min(460px,100%)}.setup-card{width:min(780px,100%)}h1{font-size:28px;margin:10px 0}.muted{color:var(--muted)}label{display:flex;flex-direction:column;gap:7px;font-size:13px;font-weight:600;color:#475468;margin:14px 0}input,textarea,select{width:100%;border:1px solid #ccd4df;border-radius:10px;padding:11px 12px;background:#fff;color:var(--ink);outline:none}input:focus,textarea:focus,select:focus{border-color:#77a9ee;box-shadow:0 0 0 3px rgba(23,105,224,.10)}.primary,.compose{border:0;background:var(--accent);color:#fff;border-radius:11px;padding:11px 16px;font-weight:700}.primary:hover,.compose:hover{background:var(--accent2)}.full{width:100%}.ghost,.icon-btn{border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 12px;color:#42516a}.icon-btn{width:38px;height:38px;display:grid;place-items:center;padding:0}.notice{border-radius:10px;padding:11px 12px;margin:12px 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1fr;min-width:0;overflow:hidden}.message-list-pane{background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;min-width:0}.pane-head{height:68px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--line)}.pane-head h2{font-size:18px;margin:0}.pane-head small{color:var(--muted)}.message-list{overflow:auto}.message-row{padding:13px 16px;border-bottom:1px solid #edf0f4;cursor:pointer;display:grid;gap:4px}.message-row:hover{background:#f7f9fc}.message-row.unread{background:#f0f6ff}.message-row.unread .sender,.message-row.unread .subject{font-weight:750}.row-top{display:flex;justify-content:space-between;gap:10px}.sender,.subject{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sender{font-size:13px}.date{font-size:11px;color:var(--muted);white-space:nowrap}.subject{font-size:13px;color:#38465a}.account-chip{font-size:10px;color:#5c6c83}.reader-pane{overflow:auto;background:#fff}.empty-state,.empty-reader{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:var(--muted);text-align:center;padding:30px}.empty-state{height:300px}.empty-icon{font-size:44px}.reader-head{padding:24px 28px 18px;border-bottom:1px solid var(--line)}.reader-head h2{margin:0 0 12px;font-size:23px}.mail-meta{display:flex;flex-direction:column;gap:4px;color:#536176;font-size:13px}.reader-body{padding:26px 28px;line-height:1.55;overflow-wrap:anywhere}.reader-body iframe{width:100%;border:0;min-height:500px}.attachments{padding:0 28px 20px}.attachment{display:inline-block;border:1px solid var(--line);border-radius:9px;padding:8px 10px;margin:4px;font-size:12px}.modal{position:fixed;inset:0;background:rgba(10,20,35,.42);display:grid;place-items:center;padding:20px;z-index:20}.modal[hidden]{display:none}.modal-card{background:#fff;border-radius:18px;box-shadow:var(--shadow);width:min(640px,100%);max-height:92vh;overflow:auto;padding:20px}.modal-card.wide{width:min(760px,100%)}.modal-head,.modal-actions{display:flex;align-items:center;justify-content:space-between;gap:10px}.modal-head h3{margin:0}.modal-actions{justify-content:flex-end;margin-top:16px}.two-cols{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}.checkline{flex-direction:row;align-items:center}.checkline input{width:auto}.toast{position:fixed;right:20px;bottom:20px;background:#182235;color:#fff;padding:12px 16px;border-radius:11px;box-shadow:var(--shadow);z-index:30;max-width:420px}.toast.error{background:#8d2525}.mobile-only{display:none}@media(max-width:900px){.app-shell{grid-template-columns:1fr;grid-template-rows:60px 1fr}.topbar{grid-template-columns:auto 1fr auto;padding:0 10px}.topbar .brand strong,.user-name{display:none}.mobile-only{display:grid}.sidebar{position:fixed;left:-270px;top:60px;bottom:0;width:260px;z-index:15;box-shadow:var(--shadow);transition:.2s}.sidebar.open{left:0}.content{grid-template-columns:1fr}.reader-pane{position:fixed;inset:60px 0 0 0;z-index:10;display:none}.reader-pane.open{display:block}.search-wrap input{padding:9px}.message-list-pane{border-right:0}.top-actions #installBtn{display:none!important}}@media(max-width:620px){.form-grid,.two-cols{grid-template-columns:1fr}.login-card,.setup-card{padding:24px;border-radius:18px}.topbar{grid-template-columns:auto 1fr auto}.brand-mark{width:32px;height:32px}}

.account-onboarding{margin:28px;padding:34px 26px;border:1px dashed #b8cceb;border-radius:18px;background:linear-gradient(180deg,#f8fbff,#f2f7ff);display:flex;flex-direction:column;align-items:center;text-align:center;gap:11px;color:#51617a}.account-onboarding-icon{width:64px;height:64px;border-radius:20px;background:#e3efff;color:#1769e0;display:grid;place-items:center;font-size:31px}.account-onboarding h3{margin:5px 0 0;color:#152033;font-size:20px}.account-onboarding p{max-width:430px;margin:0;line-height:1.5}.account-onboarding small{max-width:480px;line-height:1.45}.account-dialog{width:min(720px,100%)}.account-dialog .modal-head small{display:block;color:var(--muted);margin-top:4px}.detect-button{margin:4px 0 14px;border-color:#b9cdea;background:#f4f8ff;color:#175fbf;font-weight:700}.advanced-box{border:1px solid var(--line);border-radius:12px;padding:0 14px 10px;background:#fbfcfe}.advanced-box summary{cursor:pointer;padding:13px 0;font-weight:750;color:#34445d}.accounts-manager{display:grid;gap:10px;margin:18px 0}.account-card{display:grid;grid-template-columns:44px 1fr auto;gap:12px;align-items:center;border:1px solid var(--line);border-radius:13px;padding:12px;background:#fff}.account-card-icon{width:44px;height:44px;border-radius:13px;background:#eaf2ff;color:#165fc8;display:grid;place-items:center;font-weight:850;font-size:18px}.account-card-main{display:flex;flex-direction:column;gap:3px;min-width:0}.account-card-main strong,.account-card-main span,.account-card-main small{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.account-card-main span{font-size:13px;color:#536176}.account-card-main small{font-size:11px;color:#7c899e}.account-card-actions{display:flex;gap:7px}.danger-link,.danger-btn{border:1px solid #efc4c4;background:#fff4f4;color:#a32626;border-radius:9px;padding:8px 11px;font-weight:700}.danger-btn{background:#b92f2f;color:#fff;border-color:#b92f2f}.manager-empty{padding:28px;border:1px dashed #cbd6e4;border-radius:13px;display:flex;flex-direction:column;align-items:center;gap:7px;color:var(--muted);text-align:center}.manage-intro{margin-bottom:6px}.confirm-card{width:min(480px,100%)}.account-error-row{background:#fff7f7;color:#8d2525}@media(max-width:700px){.account-onboarding{margin:16px;padding:28px 18px}.account-card{grid-template-columns:40px 1fr}.account-card-actions{grid-column:1/-1;justify-content:flex-end}.account-card-icon{width:40px;height:40px}.account-dialog{max-height:96vh}}