:root{--ink:#19332b;--muted:#61736b;--green:#257a54;--green-dark:#145c3d;--mint:#eaf6ef;--wash:#f7faf7;--line:#dce7df;--red:#96343b;--white:#fff}
*{box-sizing:border-box}
html{font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--wash);font-size:16px}
body{margin:0;min-height:100vh;display:flex;flex-direction:column}
a{color:inherit}
button,input,textarea{font:inherit}
button{cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #5cae78;outline-offset:3px}
.topbar{height:76px;padding:0 max(24px,calc((100vw - 1280px)/2));display:flex;align-items:center;justify-content:space-between;gap:20px;background:var(--white);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-size:21px;font-weight:700;letter-spacing:-.6px;white-space:nowrap}
.brand b{color:var(--green)}
.brand-icon{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--green);color:#fff;font-size:25px;font-weight:400}
.header-link,.text-button{color:var(--green-dark);font-weight:700;font-size:14px;text-decoration:none}
.header-link:hover,.text-button:hover{text-decoration:underline}
.account{display:flex;align-items:center;gap:16px;color:var(--muted);font-size:13px;min-width:0}
.account span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.account form{margin:0}
.text-button{border:0;background:transparent;white-space:nowrap;padding:10px}
.page{width:min(1280px,100%);margin:0 auto;flex:1;padding:32px 24px 70px}
.login-card{max-width:460px;margin:5vh auto 0;background:#fff;padding:42px;border:1px solid var(--line);border-radius:24px;box-shadow:0 18px 65px rgba(18,57,36,.07)}
.eyebrow{font-size:11px;letter-spacing:2px;font-weight:800;color:var(--green);margin-bottom:12px}
h1,h2,p{margin-top:0}
h1{font-size:clamp(30px,4vw,40px);letter-spacing:-1.4px;line-height:1.15;margin-bottom:13px}
.login-card>p{color:var(--muted);line-height:1.6}
label{display:block;font-size:14px;font-weight:700;margin-top:22px}
input,textarea{display:block;width:100%;margin-top:9px;padding:14px 15px;border:1.5px solid #cad9cf;border-radius:11px;background:#fff;color:var(--ink);outline:none;min-height:50px}
textarea{min-height:230px;resize:vertical;line-height:1.6}
input:focus,textarea:focus{border-color:var(--green);box-shadow:0 0 0 3px #e2f3e7}
.primary,.compose-link{display:inline-flex;justify-content:center;align-items:center;gap:8px;min-height:48px;border:0;border-radius:11px;padding:13px 20px;background:var(--green);color:#fff;text-decoration:none;font-weight:700}
.primary:hover,.compose-link:hover{background:var(--green-dark)}
.login-card .primary{width:100%;margin-top:28px}
.small{font-size:13px;color:var(--muted);line-height:1.55}
.login-card .small{margin:24px 0 0;text-align:center}
.small a{color:var(--green-dark);font-weight:700}
.error,.flash,.notice{border-radius:11px;padding:13px 16px;line-height:1.5;font-size:14px;margin:18px 0}
.error{background:#fff0f0;color:var(--red);border:1px solid #f1cccc}
.flash{background:#e5f6e9;color:#135536;border:1px solid #c7e8ce}
.notice{background:#fff7e7;color:#755113;border:1px solid #efdfbd}
.app-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:24px;align-items:start}
.sidebar{min-height:calc(100vh - 170px);padding:18px;background:#fff;border:1px solid var(--line);border-radius:20px}
.compose-link{display:flex;margin-bottom:20px}
.nav-link{display:flex;gap:10px;align-items:center;min-height:48px;padding:0 15px;border-radius:11px;text-decoration:none;font-weight:700;color:var(--muted)}
.nav-link:hover,.nav-link.active{background:var(--mint);color:var(--green-dark)}
.sidebar-note{margin:26px 8px 0;padding-top:20px;border-top:1px solid var(--line);color:var(--muted);font-size:12px;line-height:1.6}
.content{min-width:0;min-height:500px;padding:30px;background:#fff;border:1px solid var(--line);border-radius:20px}
.content-head{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:24px}
.content-head h1{margin:0}
.back{flex:0 0 auto;color:var(--green-dark);text-decoration:none;font-size:14px;font-weight:700;min-height:44px;display:inline-flex;align-items:center;padding:0 8px}
.back:hover{text-decoration:underline}
.message-list{border-top:1px solid var(--line)}
.message-row{display:grid;grid-template-columns:minmax(150px,1fr) minmax(200px,2fr) minmax(160px,1fr);gap:18px;align-items:center;min-height:66px;padding:13px 14px;border-bottom:1px solid var(--line);text-decoration:none;color:var(--muted)}
.message-row:hover{background:var(--wash)}
.message-row.unread{background:#f0f8f2;color:var(--ink);font-weight:700}
.sender,.subject{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.message-row time{font-size:12px;text-align:right;font-weight:400;color:var(--muted)}
.list-note{margin:16px 0 0}
.empty{text-align:center;padding:70px 20px;color:var(--muted)}
.empty span{font-size:55px;color:var(--green)}
.empty h2{font-size:22px;color:var(--ink);margin:16px 0 9px}
.compose-form{max-width:760px}
.compose-form label{margin-top:20px}
.compose-actions{display:flex;align-items:center;flex-wrap:wrap;gap:16px;margin-top:23px;color:var(--muted);font-size:13px}
.message{border-top:1px solid var(--line);padding-top:22px}
.message-meta{display:flex;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);padding-bottom:21px}
.message-meta strong,.message-meta small{display:block;overflow-wrap:anywhere}
.message-meta small{margin-top:7px;color:var(--muted);font-size:13px}
.message-meta time{color:var(--muted);font-size:12px;text-align:right}
.message-body{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.7;padding:28px 0;max-width:80ch}
footer{width:min(1280px,100%);margin:auto;padding:0 24px 24px;color:#71847a;font-size:12px}
@media(max-width:760px){.topbar{height:66px;padding:0 16px}.brand{font-size:18px}.brand-icon{width:36px;height:36px;font-size:23px}.account{gap:3px}.account span{max-width:130px}.page{padding:16px 12px 48px}.app-layout{grid-template-columns:1fr;gap:12px}.sidebar{min-height:0;display:flex;align-items:center;gap:8px;padding:10px;border-radius:15px}.compose-link{margin:0;min-width:130px}.nav-link{flex:1;justify-content:center}.sidebar-note{display:none}.content{padding:20px 16px;min-height:400px;border-radius:15px}.message-row{grid-template-columns:1fr auto;gap:6px 10px}.message-row .subject{grid-column:1/-1;grid-row:2}.message-row time{grid-column:2;grid-row:1}.content-head{margin-bottom:17px}.message-meta{display:block}.message-meta time{display:block;text-align:left;margin-top:14px}}
@media(max-width:480px){.login-card{margin:16px 0 0;padding:28px 22px}.account span{display:none}.content-head h1{font-size:30px}.back{font-size:12px}.compose-actions .primary{width:100%}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
/* Dense dark mailbox. The sign-in and registration surfaces keep their own light theme. */
.mail-app{--ink:#e7e9ed;--muted:#aab0b9;--green:#9ec8ff;--green-dark:#c2dbff;--mint:#28364b;--wash:#15171c;--line:#373c45;--red:#ffd0d4;--white:#202328;background:#15171c;color:#e7e9ed}
.mail-app .topbar{height:64px;padding:0 24px;background:#202328;border-color:#343840}
.mail-app .brand{font-size:19px;letter-spacing:-.2px}
.mail-app .brand-icon{background:#2e4b73;border-radius:50%;font-size:20px;width:34px;height:34px}
.mail-app .page{width:100%;max-width:none;padding:16px 20px 40px}
.mail-app .app-layout{grid-template-columns:228px minmax(0,1fr);gap:14px}
.mail-app .sidebar{background:transparent;border:0;border-radius:0;padding:0 8px 0 0;min-height:0}
.mail-app .compose-link{justify-content:flex-start;width:max-content;padding:15px 24px;min-height:54px;border-radius:16px;background:#c4e0fb;color:#18324b;font-weight:700;margin:0 0 20px 8px}
.mail-app .compose-link:hover{background:#d6ebff}
.mail-app .nav-link{min-height:39px;padding:0 18px;border-radius:0 20px 20px 0;font-size:14px;font-weight:500;color:#c1c5cd}
.mail-app .nav-link:hover{background:#292e37;color:#f4f6fa}
.mail-app .nav-link.active{background:#394858;color:#d8e9ff;font-weight:700}
.mail-app .nav-count{margin-left:auto;font-size:12px;font-weight:700}
.mail-app .sidebar-note{border-color:#343840}
.mail-app .content{background:#202328;border:0;border-radius:16px;padding:20px 24px;min-height:calc(100vh - 104px)}
.mail-app .content-head{margin-bottom:15px}
.mail-app .content-head h1{font-size:24px;letter-spacing:-.4px}
.mail-app .list-range{font-size:13px;color:#aab0b9}
.mail-app .search-form{display:flex;gap:8px;max-width:680px;margin:0 0 16px}
.mail-app .search-form input{margin:0;min-height:42px;background:#30343b;border:1px solid #414752;border-radius:22px;color:#f1f3f5;padding:8px 18px}
.mail-app .search-form input::placeholder{color:#aeb4bc}
.mail-app .search-form button,.mail-app .secondary,.mail-app .tool-link,.mail-app .inline-action button,.mail-app .pagination a{display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:6px 13px;border-radius:18px;background:#30343b;border:1px solid #424955;color:#e7e9ed;text-decoration:none;font-size:13px;font-weight:600}
.mail-app .search-form button:hover,.mail-app .secondary:hover,.mail-app .tool-link:hover,.mail-app .inline-action button:hover,.mail-app .pagination a:hover{background:#3c434d}
.mail-app .message-list{border-top:1px solid #343840}
.mail-app .message-row{display:grid;grid-template-columns:48px minmax(0,1fr);min-height:48px;padding:0;border-color:#343840;gap:0;background:#202328}
.mail-app .message-row:hover{background:#30343b}
.mail-app .message-row.unread{background:#2b313a;color:#fff}
.mail-app .message-main{display:grid;grid-template-columns:minmax(150px,220px) minmax(0,1fr) minmax(100px,180px);gap:14px;align-items:center;min-height:48px;text-decoration:none;color:inherit;padding:0 12px 0 0;font-size:14px;min-width:0}
.mail-app .message-main:hover{text-decoration:none}
.mail-app .row-actions{display:grid;place-items:center}
.mail-app .star-action button{padding:0;border:0;background:transparent;color:#aeb4bc;font-size:21px;width:35px;height:35px}
.mail-app .star-action button:hover{background:#38404a;color:#ffd36b}
.mail-app .message-main time{font-size:12px;color:#b2b8c2;text-align:right;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mail-app .empty{padding:70px 20px}
.mail-app .empty h2{color:#e7e9ed}
.mail-app .pagination{display:flex;justify-content:flex-end;gap:8px;padding:18px 0}
.mail-app .message-toolbar{display:flex;gap:8px;flex-wrap:wrap;padding:12px 0;border-bottom:1px solid #3a3f48}
.mail-app .inline-action{display:inline-flex;margin:0}
.mail-app .message-toolbar label{margin:0;font-size:12px}
.mail-app .message-toolbar label input{margin:4px 0;min-height:36px}
.mail-app .message{border:0;padding:22px 0}
.mail-app .message-meta{border-color:#3a3f48}
.mail-app .message-body{max-width:90ch;line-height:1.6;color:#e7e9ed}
.mail-app .attachment-list{display:flex;flex-wrap:wrap;gap:8px;border:1px solid #424955;border-radius:12px;padding:15px;margin:20px 0;max-width:840px}
.mail-app .attachment-list h2{width:100%;font-size:16px;margin:0 0 6px}
.mail-app .attachment{display:inline-flex;gap:8px;align-items:center;text-decoration:none;background:#30343b;border:1px solid #4c5663;border-radius:10px;padding:12px;color:#e7e9ed;overflow-wrap:anywhere}
.mail-app .attachment:hover{background:#39434e}
.mail-app .attachment small{color:#aab0b9}
.mail-app .compose-form{max-width:780px}
.mail-app .compose-form label{margin-top:12px;font-size:13px;color:#c8ced6}
.mail-app .compose-form input,.mail-app .compose-form textarea,.mail-app .message-toolbar input{background:#2b3037;color:#f3f5f7;border:1px solid #464c56;border-radius:8px;margin-top:5px;min-height:41px;padding:9px 12px}
.mail-app .compose-form textarea{min-height:290px;resize:vertical}
.mail-app .compose-form input:focus,.mail-app .compose-form textarea:focus{border-color:#9ec8ff;box-shadow:0 0 0 2px #284367}
.mail-app .file-label input{padding:9px;cursor:pointer}
.mail-app .check-row{display:flex;align-items:center;gap:8px;margin:0!important}
.mail-app .check-row input{width:auto;min-height:0;margin:0}
.mail-app .compose-actions{gap:10px}
.mail-app .primary{background:#9ec8ff;color:#152f49;min-height:40px;border-radius:20px;padding:9px 22px}
.mail-app .primary:hover{background:#c6e0ff}
.mail-app .error{background:#4a2529;color:#ffe1e3;border-color:#774248}
.mail-app .flash{background:#1e4934;color:#d8ffe7;border-color:#3c7253}
.mail-app .notice{background:#544329;color:#fff0c2;border-color:#816642}
.mail-app footer{width:100%;max-width:none;text-align:center;color:#888f99;padding:0 20px 20px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:800px){.mail-app .page{padding:10px}.mail-app .app-layout{grid-template-columns:1fr}.mail-app .sidebar{display:flex;overflow-x:auto;align-items:center;gap:4px;padding:0 0 10px;white-space:nowrap}.mail-app .sidebar nav{display:flex}.mail-app .compose-link{margin:0 8px 0 0;min-width:0;min-height:40px;padding:10px 16px}.mail-app .nav-link{border-radius:18px;min-height:38px;padding:0 12px}.mail-app .content{min-height:calc(100vh - 180px);padding:16px}.mail-app .message-main{grid-template-columns:minmax(90px,1fr) minmax(0,2fr) 90px}}
@media(max-width:560px){.mail-app .topbar{padding:0 12px}.mail-app .account span{display:none}.mail-app .message-main{grid-template-columns:minmax(100px,1fr) 80px;gap:4px}.mail-app .message-main .subject{grid-column:1/-1;grid-row:2;padding-bottom:6px}.mail-app .message-row{min-height:65px}.mail-app .message-main time{grid-column:2;grid-row:1}.mail-app .content-head h1{font-size:21px}.mail-app .message-toolbar{gap:5px}}