*{box-sizing:border-box}
:root{--green:#4d7023;--green2:#6e9635;--bg:#f3f5f1;--line:#e5e9e1;--text:#1f2a1f;--muted:#6b746b}
body{margin:0;font-family:Arial,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}
button,input,textarea{font:inherit}.app{min-height:100vh;display:flex}
.sidebar{width:245px;background:#fff;border-right:1px solid var(--line);padding:20px 14px;flex:none}
.brand{display:flex;gap:11px;align-items:center;padding:2px 8px 22px}.brand-icon{width:42px;height:42px;border-radius:12px;background:var(--green);color:#fff;display:grid;place-items:center;font-size:21px}.brand strong,.brand small{display:block}.brand small{color:var(--muted);font-size:11px;margin-top:4px;max-width:150px;overflow:hidden;text-overflow:ellipsis}
.compose-btn{width:100%;border:0;border-radius:11px;padding:12px;background:var(--green);color:#fff;font-weight:700;cursor:pointer;margin-bottom:18px}
nav a{display:flex;align-items:center;gap:12px;padding:11px 12px;color:#394339;text-decoration:none;border-radius:9px;margin:3px 0}nav a:hover,nav a.active{background:#edf4e8;color:var(--green);font-weight:700}
.main{min-width:0;flex:1}.topbar{height:72px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:12px;padding:12px 24px;position:sticky;top:0;z-index:3}
.search{display:flex;max-width:680px;flex:1;margin:auto}.search input{width:100%;border:1px solid var(--line);border-right:0;padding:12px 14px;border-radius:10px 0 0 10px;outline:none}.search button{border:0;background:var(--green);color:#fff;padding:0 18px;border-radius:0 10px 10px 0}.refresh-btn,.menu-btn{border:1px solid var(--line);background:#fff;border-radius:9px;padding:10px 13px;cursor:pointer}.menu-btn{display:none}
.mail-panel{margin:22px;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}.panel-title{padding:18px 20px;border-bottom:1px solid var(--line)}.panel-title h1{font-size:20px;margin:0 0 4px}.panel-title small{color:var(--muted)}
.message-row{display:grid;grid-template-columns:35px minmax(180px,260px) minmax(180px,1fr) 165px;gap:10px;align-items:center;padding:13px 17px;border-bottom:1px solid var(--line);color:inherit;text-decoration:none}.message-row:hover{background:#f8faf7}.message-row.unread{background:#f3f8ef;font-weight:700}.sender,.subject{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.star{color:#9a7a16}.message-row time{font-size:12px;color:var(--muted);text-align:right}.empty,.error{margin:18px;padding:20px;border-radius:10px}.empty{text-align:center;color:var(--muted)}.error{background:#fff1f0;color:#9f1e18;border:1px solid #ffd4d1}
.pagination{display:flex;justify-content:center;gap:20px;padding:15px}.pagination a{color:var(--green);text-decoration:none;font-weight:700}
.modal{display:none;position:fixed;inset:0;background:#0007;z-index:20;align-items:flex-end;justify-content:flex-end;padding:22px}.modal.show{display:flex}.modal-card{width:min(620px,100%);background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 20px 70px #0005}.modal-head{background:var(--green);color:#fff;padding:14px 16px;display:flex;justify-content:space-between}.modal-head button{border:0;background:transparent;color:#fff;font-size:25px;cursor:pointer}.modal-card input,.modal-card textarea{width:100%;border:0;border-bottom:1px solid var(--line);padding:13px;outline:none}.modal-card textarea{height:260px;resize:vertical}.compose-footer{display:flex;align-items:center;justify-content:space-between;padding:12px}.compose-footer input{border:0;padding:0;width:auto}.send-btn{border:0;border-radius:8px;padding:10px 22px;background:var(--green);color:#fff;font-weight:700}
.reader-page{padding:20px}.reader{max-width:1050px;margin:auto}.reader-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.reader-toolbar a{text-decoration:none;color:var(--green);font-weight:700}.reader-toolbar form{margin:0}.danger-btn{border:1px solid #e8b8b8;background:#fff;color:#a72323;border-radius:8px;padding:9px 12px;cursor:pointer}.message-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px}.message-card h1{margin:0 0 18px;font-size:23px}.meta{font-size:13px;color:var(--muted);margin:6px 0}.attachments{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.attachments a{padding:8px 11px;background:#edf4e8;border-radius:8px;color:var(--green);text-decoration:none;font-size:13px}.message-body{border-top:1px solid var(--line);margin-top:20px;padding-top:22px;line-height:1.65;overflow-wrap:anywhere}.message-body img{max-width:100%;height:auto}.message-body pre{white-space:pre-wrap;font-family:inherit}
@media(max-width:780px){.sidebar{position:fixed;left:-260px;top:0;bottom:0;z-index:10;transition:.2s;box-shadow:10px 0 30px #0002}.sidebar.show{left:0}.menu-btn{display:block}.topbar{padding:10px}.mail-panel{margin:10px}.message-row{grid-template-columns:26px 1fr 95px}.message-row .sender{grid-column:2}.message-row .subject{grid-column:2;grid-row:2;font-weight:400;color:var(--muted)}.message-row time{grid-column:3;grid-row:1}.modal{padding:0}.modal-card{border-radius:14px 14px 0 0}.reader-page{padding:10px}.message-card{padding:17px}}