:root{--bg:#f5f6f8;--panel:#ffffff;--line:#d8dde4;--line-strong:#b9c1cc;--text:#18202c;--muted:#687386;--accent:#0f766e;--accent-strong:#0b5e58;--danger:#b42318;--focus:#2563eb}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.login-panel{width:min(100%,380px);background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:24px;box-shadow:0 18px 50px rgb(24 32 44/10%)}.login-panel h1{margin:0;font-size:28px}.login-panel p{margin:6px 0 0;color:var(--muted)}.login-form{display:grid;grid-gap:14px;gap:14px;margin-top:24px}.login-form label{display:grid;grid-gap:6px;gap:6px;color:var(--muted);font-size:13px}.compose-dialog input,.compose-dialog textarea,.login-form input,.search-box input{width:100%;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--text);outline:none}.login-form input{height:40px;padding:0 10px}.compose-dialog input:focus,.compose-dialog textarea:focus,.login-form input:focus,.search-box input:focus{border-color:var(--focus)}.compose-button,.login-form button,.send-button{border:0;border-radius:6px;background:var(--accent);color:#fff;font-weight:650}.login-form button{height:40px}.compose-button:hover,.login-form button:hover,.send-button:hover{background:var(--accent-strong)}.form-error,.inline-error{color:var(--danger);font-size:13px}.form-success{color:var(--accent);font-size:13px}.mail-shell{grid-template-columns:228px minmax(320px,430px) minmax(360px,1fr)}.mail-shell,.people-shell{height:100vh;display:grid;overflow:hidden}.people-shell{grid-template-columns:300px minmax(320px,430px) minmax(420px,1fr)}.mail-sidebar,.message-list-pane,.people-sidebar,.reader-pane,.thread-sidebar{min-width:0;min-height:0;background:var(--panel)}.mail-sidebar,.people-sidebar{display:flex;flex-direction:column;border-right:1px solid var(--line);padding:12px}.thread-sidebar{display:grid;grid-template-rows:auto auto 1fr;border-right:1px solid var(--line)}.brand-row{display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:40px}.brand-row div{min-width:0;display:grid}.brand-row strong{font-size:17px}.brand-row span{overflow:hidden;color:var(--muted);font-size:12px;text-overflow:ellipsis;white-space:nowrap}.icon-button{width:32px;height:32px;display:inline-grid;place-items:center;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--text)}.icon-button:hover:not(:disabled){border-color:var(--line-strong);background:#f8fafc}.compose-button{height:36px;display:inline-flex;align-items:center;justify-content:center;gap:8px;margin:16px 0 10px}.people-tabs{display:grid;grid-template-columns:1fr 1fr;grid-gap:4px;gap:4px;margin-bottom:10px;padding:3px;border:1px solid var(--line);border-radius:6px;background:#f8fafc}.people-tabs button{height:30px;border:0;border-radius:5px;background:transparent;color:var(--muted);font-weight:650}.people-tabs button.selected{background:#fff;color:var(--text);box-shadow:0 1px 3px rgb(24 32 44/12%)}.people-search{margin-bottom:10px}.index-row{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px;color:var(--muted);font-size:12px}.index-row button{min-width:82px;height:26px;display:inline-flex;align-items:center;justify-content:center;gap:5px;border:1px solid var(--line);border-radius:5px;background:#fff;color:var(--text)}.contact-list,.thread-list{min-height:0;overflow:auto}.contact-list{display:grid;align-content:start;grid-gap:2px;gap:2px}.contact-row{width:100%;min-height:58px;display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;grid-gap:8px;gap:8px;border-radius:6px;background:transparent;padding:7px}.contact-row.selected,.contact-row:hover{background:#eef6f5}.contact-row-main{min-width:0;min-height:44px;display:grid;grid-template-columns:34px minmax(0,1fr) auto;align-items:center;grid-gap:8px;gap:8px;border:0;background:transparent;color:var(--text);padding:0;text-align:left}.contact-avatar{width:32px;height:32px;display:inline-grid;place-items:center;border-radius:50%;background:#dbeafe;color:#1d4ed8;font-weight:750}.contact-row-top{min-width:0;display:block}.contact-row-top strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.contact-row-meta{min-width:0;display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:baseline;grid-gap:8px;gap:8px}.contact-row-meta time{color:var(--muted);font-size:11px;white-space:nowrap}.contact-row-meta p,.thread-row p{margin:3px 0 0;overflow:hidden;color:var(--muted);font-size:12px;text-overflow:ellipsis;white-space:nowrap}.count-pill{min-width:22px;height:22px;display:inline-grid;place-items:center;border-radius:999px;background:var(--accent);color:#fff;font-size:11px;font-weight:750}.invitation-actions{display:flex;align-items:center;gap:4px}.accept-button,.ignore-button{width:26px;height:26px;display:inline-grid;place-items:center;border:1px solid var(--line);border-radius:5px;background:#fff;color:var(--accent)}.ignore-button{color:var(--danger)}.thread-row{width:100%;display:grid;grid-gap:4px;gap:4px;border:0;border-bottom:1px solid var(--line);background:#fff;padding:10px 12px;text-align:left}.thread-row.selected,.thread-row:hover{background:#eef6f5}.thread-meta{display:flex;gap:10px;color:var(--muted);font-size:11px}.conversation-stack{min-height:0;overflow:auto;display:flex;flex-direction:column;gap:12px;padding:14px;background:#f5f6f8}.message-card{flex:0 0 auto;border:1px solid var(--line);border-radius:8px;background:#fff;overflow:hidden}.message-card-header{display:flex;align-items:baseline;justify-content:space-between;gap:10px;padding:8px 12px;border-bottom:1px solid var(--line);color:var(--muted);font-size:11px}.message-card-header span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:700}.message-card-header time{flex:0 0 auto;white-space:nowrap}.message-text-body{margin:0;padding:12px;white-space:pre-wrap;overflow-wrap:anywhere;font-family:inherit;font-size:14px;line-height:1.5}.quoted-text-body{color:var(--muted)}.quoted-toggle-row{padding:0 12px 12px}.quoted-toggle-button{height:28px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--muted);padding:0 10px;font-size:12px;font-weight:650}.quoted-toggle-button:hover{border-color:var(--line-strong);color:var(--text)}.message-html-body{width:100%;min-height:180px;border:0;background:#fff}.mailbox-list{display:grid;grid-gap:2px;gap:2px;overflow:auto}.account-action-button,.logout-button,.mailbox-list button{min-height:32px;display:flex;align-items:center;justify-content:space-between;gap:8px;border:0;border-radius:6px;background:transparent;color:var(--text);padding:0 8px;text-align:left}.mailbox-list button span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mailbox-list button span:last-child{color:var(--muted);font-size:12px}.account-action-button:hover,.logout-button:hover,.mailbox-list button.selected,.mailbox-list button:hover{background:#e9eef5}.account-actions,.logout-button{margin-top:auto}.logout-button{width:100%;color:var(--muted)}.account-actions{display:grid;grid-gap:4px;gap:4px}.account-action-button{width:100%;justify-content:flex-start;color:var(--muted)}.message-list-pane{display:grid;grid-template-rows:auto auto 1fr;border-right:1px solid var(--line)}.pane-header{display:grid;grid-gap:10px;gap:10px;padding:14px;border-bottom:1px solid var(--line)}.pane-header h1{margin:0;font-size:20px}.pane-header span{color:var(--muted);font-size:12px}.search-box{height:34px;display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:6px;padding:0 9px}.search-box input{height:30px;border:0;padding:0}.search-clear{width:24px;height:24px;display:inline-grid;flex:0 0 auto;place-items:center;border:0;border-radius:5px;background:transparent;color:var(--muted)}.search-clear:hover{background:#eef2f7;color:var(--text)}.inline-error{padding:10px 14px;border-bottom:1px solid var(--line);background:#fff5f5}.message-list{overflow:auto}.message-row{width:100%;display:grid;grid-gap:4px;gap:4px;border:0;border-bottom:1px solid var(--line);background:#fff;padding:10px 12px;text-align:left}.message-row.selected,.message-row:hover{background:#eef6f5}.message-row.unread{background:#fbfdff}.message-row-top,.message-subject{min-width:0;display:flex;align-items:center;gap:6px}.message-row-top span,.message-subject span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.message-row-top span,.message-row.unread .message-subject{font-weight:700}.message-row-top time{margin-left:auto;font-size:11px}.message-row p,.message-row-top time{color:var(--muted);white-space:nowrap}.message-row p{margin:0;overflow:hidden;font-size:13px;line-height:1.35;text-overflow:ellipsis}.load-more-row{display:grid;place-items:center;padding:12px}.load-more-button,.load-more-row button{min-width:180px;height:34px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--text);font-weight:650}.load-more-button:hover:not(:disabled),.load-more-row button:hover:not(:disabled){border-color:var(--line-strong);background:#f8fafc}.load-more-button{justify-self:center}.empty-state,.reader-empty,.reader-loading{color:var(--muted);padding:20px}.reader-pane{display:grid;grid-template-rows:auto 1fr}.reader-toolbar{height:49px;display:flex;align-items:center;gap:8px;border-bottom:1px solid var(--line);padding:8px 12px}.reader-content{min-height:0;overflow:auto}.reader-content header{padding:18px 22px 14px;border-bottom:1px solid var(--line)}.reader-content h2{margin:0 0 10px;font-size:22px}.message-meta{display:flex;flex-wrap:wrap;gap:8px 16px;color:var(--muted);font-size:13px}.compose-backdrop{position:fixed;inset:0;display:flex;align-items:flex-end;justify-content:flex-end;background:rgb(24 32 44/18%);padding:24px}.compose-dialog{width:min(100%,560px);display:grid;grid-gap:10px;gap:10px;border:1px solid var(--line-strong);border-radius:8px;background:#fff;box-shadow:0 22px 70px rgb(24 32 44/24%);padding:12px}.compose-dialog footer,.compose-dialog header{display:flex;align-items:center;justify-content:space-between;gap:12px}.compose-dialog input{height:36px;padding:0 9px}.compose-dialog textarea{min-height:230px;resize:vertical;padding:9px}.send-button{height:34px;display:inline-flex;align-items:center;gap:8px;padding:0 13px}@media (max-width:900px){.mail-shell{grid-template-columns:180px minmax(280px,1fr)}.reader-pane{display:none}}@media (max-width:620px){.mail-shell{grid-template-columns:1fr}.mail-sidebar{display:none}}