:root{color-scheme:dark;--bg:#080c11;--surface:#131a23;--raised:#1b2530;--line:#354352;--text:#f4f6f8;--muted:#b0bac8;--accent:#77ddff;--teal:#8bddff;--danger:#f2a0a8;--shadow:0 24px 70px #0006;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-size:15px;line-height:1.6}button,input,textarea,select{font:inherit}button,a,input,textarea,select{outline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--teal)}button{border:1px solid var(--line);background:var(--raised);color:var(--text);border-radius:10px;min-height:44px;padding:9px 14px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px}button:hover{border-color:var(--teal)}button:disabled{opacity:.45;cursor:default}button.primary{background:linear-gradient(135deg,#d4f5ff 0%,#77ddff 46%,#54c9f4 100%);color:#071c2d;font-weight:650;border-color:var(--accent);box-shadow:inset 0 1px 0 #fff7,0 5px 18px #34c9ff16;transition:box-shadow .16s ease,border-color .16s ease}button.primary:hover:not(:disabled){box-shadow:inset 0 1px 0 #fff9,0 6px 24px #34c9ff30}button.quiet{background:transparent}button.icon{width:44px;padding:9px}a{color:var(--teal);text-decoration:none}input,select,textarea{width:100%;min-height:46px;background:var(--bg);color:var(--text);border:1px solid var(--line);border-radius:10px;padding:11px 13px;font-size:16px}input[type=checkbox]{width:18px;height:18px;min-height:18px;accent-color:var(--teal)}textarea{resize:vertical;line-height:1.75}label{display:block;font-size:13px;color:var(--muted)}label>input,label>textarea,label>select{margin-top:5px}h1,h2,h3,p{margin:0}h1{font-size:25px;letter-spacing:-.5px}h2{font-size:21px}h3{font-size:16px}.muted{color:var(--muted)}.small{font-size:12px}.ltr{direction:ltr;unicode-bidi:isolate;overflow-wrap:anywhere}.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.spaced{justify-content:space-between}.grow{flex:1;min-width:0}.stack{display:grid;gap:14px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip-link{position:fixed;top:-100px;right:12px;z-index:100;background:var(--raised);padding:12px}.skip-link:focus{top:8px}.initial{min-height:100vh;display:grid;place-content:center;text-align:center;gap:14px}.initial img{width:140px;margin:auto}.topbar{height:80px;border-bottom:1px solid var(--line);background:var(--surface);display:flex;align-items:center;justify-content:space-between;padding:12px 24px;gap:20px}.brand{display:flex;align-items:center;gap:14px}.brand img{width:44px;height:54px;object-fit:contain}.brand h1{font-size:23px}.brand small{display:block;color:var(--muted);font-size:11px;letter-spacing:.08em}.identity{text-align:left}.identity p{font-size:13px;color:var(--muted)}.layout{height:calc(100dvh - 80px);display:grid;grid-template-columns:244px minmax(320px,380px) minmax(0,1fr)}.sidebar{padding:24px 16px;background:var(--surface);border-left:1px solid var(--line);display:flex;flex-direction:column;gap:22px;overflow:auto}.sidebar .primary{width:100%}.section-label{font-size:11px;letter-spacing:.04em;color:var(--muted);padding:0 12px;margin-bottom:8px}.folder{width:100%;justify-content:flex-start;border-color:transparent;background:transparent;padding:11px 12px;border-radius:9px;text-align:right}.folder[aria-current=page]{background:#8bddff12;border-color:#8bddff30;color:var(--teal);font-weight:600}.count{margin-right:auto;color:var(--muted);font-size:12px}.sidebar-footer{margin-top:auto;border-top:1px solid var(--line);padding-top:16px}.mail-list{display:flex;flex-direction:column;min-width:0;border-left:1px solid var(--line);background:#0e141c;overflow:hidden}.list-heading{padding:24px 20px 16px;display:grid;gap:16px}.search{position:relative}.search input{padding-left:48px}.search button{position:absolute;left:4px;top:4px;width:38px;min-height:38px;border:0;background:transparent}.filters{display:flex;gap:6px}.filters button{min-height:34px;padding:5px 10px;font-size:12px;border-color:transparent;background:transparent}.filters button[aria-pressed=true]{background:var(--raised);border-color:var(--line)}.messages{overflow:auto;min-height:0;flex:1}.message-row{display:grid;grid-template-columns:22px minmax(0,1fr);gap:12px;border-bottom:1px solid #35435275;padding:18px 20px;position:relative}.message-row.selected{background:#8bddff10}.message-open{text-align:right;display:block;padding:0;border:0;background:none;border-radius:0;min-height:0;min-width:0;width:100%;line-height:1.6}.message-open:hover{border:0}.message-row.unread .sender,.message-row.unread .subject{font-weight:650}.sender-line{display:flex;gap:8px;justify-content:space-between}.sender{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.time{font-size:10px;white-space:nowrap;color:var(--muted)}.subject{font-size:14px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:5px}.preview{color:var(--muted);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:4px}.bulkbar{padding:12px 20px;border-block:1px solid var(--line);display:flex;gap:8px;align-items:center;font-size:12px}.bulkbar button{min-height:34px;padding:5px 10px;font-size:12px}.reader{overflow:auto;min-width:0;padding:28px 32px;background:var(--bg)}.reading-toolbar{padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:28px}.reading-header{display:grid;gap:18px;margin-bottom:32px}.reading-header h2{font-size:26px;line-height:1.4;overflow-wrap:anywhere}.avatar{width:44px;height:44px;border-radius:13px;background:#77ddff15;color:var(--accent);display:grid;place-content:center;font-weight:650;flex-shrink:0}.message-body{white-space:pre-wrap;line-height:1.9;font-size:16px;overflow-wrap:anywhere;max-width:780px}.attachments{display:flex;flex-wrap:wrap;gap:10px;padding:20px 0}.attachment{display:flex;align-items:center;gap:10px;padding:12px 14px;border:1px solid var(--line);border-radius:10px;max-width:100%;overflow-wrap:anywhere;background:var(--surface)}.attachment small{display:block;color:var(--muted)}.empty{min-height:300px;display:grid;place-content:center;text-align:center;gap:12px;padding:32px;max-width:470px;margin:auto}.empty .empty-icon{margin:auto;color:var(--teal);width:54px;height:54px;background:#8bddff12;border:1px solid #8bddff30;display:grid;place-content:center;border-radius:16px}.empty h2{font-size:20px}.empty p{color:var(--muted);font-size:14px;line-height:1.8}.notice{border:1px solid var(--line);border-radius:12px;background:var(--surface);padding:16px;display:grid;gap:5px}.notice.error{border-color:#f2a0a84d;color:var(--danger)}.badge{border:1px solid var(--line);background:var(--surface);padding:4px 9px;font-size:11px;border-radius:6px;display:inline-flex;gap:6px;align-items:center}.badge.warning{border-color:#77ddff50;color:var(--accent)}.badge.success{border-color:#8bddff50;color:var(--teal)}.gate{min-height:100dvh;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));background:var(--bg)}.gate-brand{padding:60px;display:flex;flex-direction:column;justify-content:center;border-left:1px solid var(--line);background:radial-gradient(ellipse at 90% 15%,#77ddff0a,transparent 50%),var(--surface)}.gate-brand img{width:170px;max-width:100%;margin-bottom:32px}.gate-brand h1{font-size:40px;line-height:1.35;margin-bottom:20px}.gate-brand p{max-width:430px;color:var(--muted);line-height:1.9}.gate-form{padding:48px;display:grid;place-content:center}.login-card{width:min(390px,100%);display:grid;gap:24px}.login-card form{display:grid;gap:18px}.login-card h2{font-size:28px}.gate-foot{font-size:12px;color:var(--muted)}.modal-backdrop{position:fixed;inset:0;z-index:30;background:#0009;display:grid;place-items:center;padding:24px}.modal{background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);width:min(760px,100%);max-height:calc(100dvh - 48px);display:flex;flex-direction:column;overflow:hidden}.modal-head,.modal-foot{padding:18px 24px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:12px;justify-content:space-between}.modal-foot{border-top:1px solid var(--line);border-bottom:0}.modal-body{padding:24px;overflow:auto;display:grid;gap:14px;min-height:0}.composer textarea{min-height:240px;background:var(--bg)}.composer-addresses{display:grid;grid-template-columns:1fr 1fr;gap:12px}.modal-foot .save-state{font-size:12px;color:var(--muted)}.panel-page{grid-column:2/-1;padding:32px;overflow:auto;min-width:0}.panel-page>header{margin-bottom:28px}.panel-card{background:var(--surface);padding:22px;border:1px solid var(--line);border-radius:14px;max-width:780px}.panel-card+ .panel-card{margin-top:18px}.table-list{display:grid;gap:12px}.status-card{border:1px solid var(--line);border-radius:12px;background:var(--surface);padding:18px}.status-card header{margin-bottom:10px}.toast{position:fixed;bottom:24px;left:24px;max-width:min(460px,calc(100vw - 32px));background:var(--raised);color:var(--text);border:1px solid var(--teal);border-radius:12px;box-shadow:var(--shadow);padding:14px 18px;z-index:70}.mobile-only{display:none}.mail-html{width:100%;min-height:420px;border:1px solid var(--line);border-radius:10px;background:white}.icon-svg{width:19px;height:19px;flex-shrink:0}.loading{animation:pulse 1.4s ease-in-out infinite}.skeleton{height:14px;background:var(--raised);border-radius:4px;margin-bottom:12px}.skeleton.short{width:56%}@keyframes pulse{50%{opacity:.45}}@media(min-width:1500px){.layout{grid-template-columns:260px 420px minmax(0,1fr)}.reader{padding:36px 48px}}@media(max-width:1100px){.layout{grid-template-columns:218px minmax(290px,350px) minmax(0,1fr)}.reader{padding:24px}.identity p{display:none}.topbar{padding:12px 18px}}@media(max-width:850px){.layout{grid-template-columns:200px minmax(0,1fr)}.reader{display:none}.layout.has-message .mail-list{display:none}.layout.has-message .reader{display:block}.mobile-only{display:inline-flex}.panel-page{grid-column:2}}@media(max-width:600px){.topbar{height:68px;padding:10px 14px;gap:10px}.brand{gap:8px}.brand img{width:32px;height:40px}.brand h1{font-size:20px}.brand small{display:none}.identity{display:none}.layout{height:calc(100dvh - 68px);display:block}.sidebar{display:none;position:fixed;top:68px;right:0;bottom:0;z-index:20;width:min(290px,85vw);box-shadow:var(--shadow)}.sidebar.open{display:flex}.mail-list,.reader{height:100%}.list-heading{padding:20px 16px 12px}.message-row{padding:16px}.reader{padding:20px 16px}.panel-page{padding:24px 16px;height:100%}.gate{grid-template-columns:1fr}.gate-brand{padding:32px 24px;border-left:0;border-bottom:1px solid var(--line)}.gate-brand img{width:88px;margin-bottom:14px}.gate-brand h1{font-size:28px;margin-bottom:10px}.gate-brand p{font-size:14px}.gate-form{padding:28px 24px}.modal-backdrop{padding:8px}.modal{max-height:calc(100dvh - 16px);border-radius:12px}.modal-head,.modal-foot{padding:14px 16px}.modal-body{padding:16px}.composer-addresses{grid-template-columns:1fr}.modal-foot{flex-wrap:wrap}.modal-foot .save-state{width:100%;order:3}.composer textarea{min-height:180px}.reading-header h2{font-size:22px}.toast{bottom:12px;left:12px}.bulkbar{padding:10px 16px;flex-wrap:wrap}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}@media(prefers-color-scheme:light){body[data-theme=system],body[data-theme=light]{--bg:#f8fafc;--surface:#fff;--raised:#edf2f7;--line:#cbd5e1;--text:#18232e;--muted:#5c6b7d;--accent:#036d98;--teal:#087caa;--danger:#b42336}.mail-list{background:var(--surface)}}

body[data-review=true]>.notice{border-radius:0}body[data-review=true] .layout{height:calc(100dvh - 146px)}body[data-review=true] #app>div>.notice{border-radius:0;padding:10px 24px;border-inline:0;background:#77ddff0a;color:var(--accent);font-size:13px}@media(max-width:600px){body[data-review=true] .layout{height:calc(100dvh - 145px)}body[data-review=true] #app>div>.notice{padding:10px 16px}}

.workspace{height:100dvh;display:flex;flex-direction:column;min-width:0}.workspace>.topbar,.workspace>.notice{flex:none}.workspace>.layout,body[data-review=true] .workspace>.layout{height:auto;min-height:0;flex:1}.workspace>.notice{border-radius:0;border-inline:0;padding:10px 24px;color:var(--accent);font-size:13px}.workspace main{scroll-margin-top:16px}

.draft-comparison{display:grid;grid-template-columns:1fr 1fr;gap:12px}.draft-comparison .panel-card{padding:16px;min-width:0;margin:0}.draft-comparison .message-body{font-size:14px;max-height:230px;overflow:auto}@media(max-width:600px){.draft-comparison{grid-template-columns:1fr}.workspace>.notice{padding:10px 16px}}

/* Cyan visual derivative: the public gate targets the observed607px viewport. */
.gate{width:100%;min-width:0}.gate-brand,.gate-form,.login-card,.login-card form{min-width:0}.gate-brand{padding:clamp(28px,5vw,60px)}.gate-brand h1{font-size:clamp(28px,3.4vw,40px);overflow-wrap:anywhere}.gate-brand p,.gate-foot,.login-card .notice,.login-card a{overflow-wrap:anywhere}.gate-form{padding:clamp(24px,4vw,48px)}.login-card{max-width:100%;padding:28px;border:1px solid #8bddff26;border-radius:20px;background:linear-gradient(155deg,#8bddff07,transparent 65%),var(--surface);box-shadow:0 18px 50px #0003,inset 0 1px 0 #ffffff06}.login-card form>*{min-width:0}.login-card button{max-width:100%;white-space:normal}.login-card input{min-width:0;max-width:100%}.login-card h2{line-height:1.4}.gate-brand img{object-fit:contain}
@media(max-width:900px){.gate{grid-template-columns:minmax(0,1fr);align-content:start}.gate-brand{border-left:0;border-bottom:1px solid var(--line);padding:32px clamp(20px,5vw,40px)}.gate-brand img{width:92px;margin-bottom:16px}.gate-brand h1{font-size:30px;margin-bottom:10px}.gate-brand p{max-width:540px;font-size:14px}.gate-form{padding:28px 24px}.login-card{width:min(420px,100%)}}
@media(max-width:600px){.gate-brand{padding:26px 20px}.gate-brand img{width:76px;margin-bottom:12px}.gate-brand h1{font-size:28px}.gate-form{padding:24px 16px 32px}.login-card{padding:22px 20px;gap:20px;border-radius:16px}.login-card h2{font-size:25px}.login-card form{gap:16px}}