:root{--paper:oklch(0.975 .008 80);--panel:oklch(.955 .012 80);--ink:oklch(.24 .025 255);--muted:oklch(.52 .02 255);--line:oklch(.87 .018 250);--accent:oklch(.5 .16 258);--accent-soft:oklch(.93 .035 258);--danger:oklch(.55 .18 25);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;color:var(--ink);background:var(--paper)}*{box-sizing:border-box}body{margin:0}button,input,textarea{font:inherit}button{cursor:pointer;border:0}.eyebrow{margin:0;font-size:.68rem;font-weight:760;letter-spacing:.12em}.eyebrow,.muted{color:var(--muted)}.mark{display:grid;place-items:center;width:32px;height:32px;border-radius:11px;color:var(--paper);background:var(--accent)}.login-shell{min-height:100vh;display:grid;grid-template-columns:1.15fr .85fr;background:linear-gradient(115deg,var(--paper) 0,var(--paper) 55%,oklch(.94 .024 258) 55%,oklch(.94 .024 258) 100%)}.login-intro{padding:clamp(2rem,8vw,8rem);align-self:center;max-width:47rem}.login-intro h1{font-size:clamp(2.8rem,6vw,5.8rem);letter-spacing:-.07em;line-height:.94;margin:.8rem 0 1.5rem}.login-intro>p:last-child{max-width:31rem;font-size:1.12rem;line-height:1.65;color:var(--muted)}.login-panel{align-self:center;background:oklch(.99 .005 80);padding:3rem;max-width:29rem;margin:2rem;border:1px solid color-mix(in oklch,var(--line),transparent 15%);border-radius:22px}.login-panel h2{margin:.35rem 0;font-size:1.85rem;letter-spacing:-.05em}.login-panel form{display:grid;grid-gap:1rem;gap:1rem;margin:2.25rem 0}.login-panel label{display:grid;grid-gap:.45rem;gap:.45rem;font-size:.82rem;font-weight:700}.compose-panel input,.compose-panel textarea,.login-panel input{width:100%;padding:.8rem .9rem;border:1px solid var(--line);border-radius:10px;background:var(--paper);outline:none}.compose-panel input:focus,.compose-panel textarea:focus,.login-panel input:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in oklch,var(--accent),transparent 85%)}.compose-panel footer button,.login-panel button{display:flex;align-items:center;justify-content:center;gap:.5rem;padding:.86rem 1rem;border-radius:10px;background:var(--accent);color:var(--paper);font-weight:760}.login-panel button:disabled{opacity:.65}.secure{display:flex;gap:.45rem;align-items:center;color:var(--muted);font-size:.75rem}.error{color:var(--danger);font-size:.84rem;margin:0}.app-shell{display:grid;grid-template-columns:235px 330px minmax(0,1fr);height:100vh;overflow:hidden}.nav{display:flex;flex-direction:column;padding:1.35rem 1rem;background:oklch(.94 .014 255);border-right:1px solid var(--line)}.brand{gap:.65rem;font-size:.95rem;font-weight:780;padding:.1rem .35rem 1.7rem}.brand,.compose{display:flex;align-items:center}.compose{justify-content:center;gap:.55rem;background:var(--accent);color:var(--paper);padding:.72rem;border-radius:11px;font-weight:760;margin:0 .25rem 1.35rem}.nav nav{display:grid;grid-gap:.18rem;gap:.18rem}.logout,.nav nav button{display:flex;align-items:center;gap:.65rem;padding:.68rem .7rem;background:transparent;color:var(--muted);border-radius:8px;text-align:left;font-size:.89rem}.nav nav button.active,.nav nav button:hover{background:var(--accent-soft);color:var(--accent);font-weight:700}.logout{margin-top:auto}.list{border-right:1px solid var(--line);background:oklch(.985 .004 80);min-width:0}.list header,.reader-bar{display:flex;align-items:center;justify-content:space-between;padding:1.35rem 1.25rem 1rem}.list h1{margin:.25rem 0 0;font-size:1.25rem;letter-spacing:-.04em}.icon-button{display:grid;place-items:center;width:34px;height:34px;border-radius:8px;background:transparent;color:var(--muted)}.icon-button:hover{background:var(--accent-soft);color:var(--accent)}.search{display:flex;align-items:center;gap:.45rem;margin:.1rem 1.15rem 1rem;padding:.62rem .7rem;background:var(--panel);border-radius:9px;color:var(--muted)}.search input{border:0;outline:0;background:transparent;min-width:0;width:100%;font-size:.85rem}.message-list{overflow:auto;height:calc(100vh - 9.1rem)}.row{display:grid;grid-gap:.25rem;gap:.25rem;width:100%;padding:.9rem 1.25rem;border-bottom:1px solid color-mix(in oklch,var(--line),transparent 40%);background:transparent;text-align:left}.row>div{display:flex;justify-content:space-between;gap:.7rem}.row strong{font-size:.86rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.row time{color:var(--muted);font-size:.72rem}.row span{color:var(--muted);font-size:.82rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.row.unread{background:oklch(.99 .004 80)}.row.unread strong{font-weight:800}.row.selected{background:var(--accent-soft)}.reader{min-width:0;background:var(--paper);overflow:auto}.reader-bar{border-bottom:1px solid var(--line);min-height:63px}.reader-actions{display:flex;gap:.25rem;margin-left:auto}.mobile-back{display:none;background:transparent;color:var(--muted);align-items:center;gap:.25rem}article{max-width:820px;padding:3.5rem clamp(1.75rem,6vw,5.5rem);margin:auto}article h2{font-size:clamp(1.55rem,3vw,2.45rem);letter-spacing:-.055em;margin:.5rem 0 1.35rem;line-height:1.1}.sender{display:grid;grid-gap:.2rem;gap:.2rem;padding-bottom:1.7rem;border-bottom:1px solid var(--line);font-size:.88rem}.sender span+span{color:var(--muted)}.mail-body{font-size:1rem;line-height:1.75;padding:2.1rem 0;overflow-wrap:anywhere}.mail-body.plain{font-family:inherit;white-space:pre-wrap}.mail-body a{color:var(--accent)}.attachments{padding:1rem 0 1.8rem;border-top:1px solid var(--line)}.attachments h3{font-size:.82rem;margin:0 0 .7rem}.attachments a{display:flex;align-items:center;gap:.45rem;width:max-content;max-width:100%;padding:.55rem .7rem;border:1px solid var(--line);border-radius:8px;color:var(--ink);text-decoration:none;font-size:.83rem}.attachments small{color:var(--muted)}article footer{display:flex;gap:.6rem}article footer button{display:flex;align-items:center;gap:.45rem;background:var(--accent-soft);color:var(--accent);padding:.65rem .8rem;border-radius:8px;font-weight:700}.empty,.empty-reader{color:var(--muted);text-align:center;padding:3rem 1rem;font-size:.9rem}.empty-reader{display:grid;place-items:center;align-content:center;height:75%;grid-gap:.4rem;gap:.4rem}.empty-reader h2{color:var(--ink);margin:.5rem 0 0;font-size:1.2rem}.empty-reader p{max-width:20rem;line-height:1.55;margin:0}.compose-panel{position:fixed;z-index:10;right:2rem;bottom:0;width:min(620px,calc(100vw - 2rem));background:oklch(.99 .004 80);border:1px solid var(--line);border-radius:16px 16px 0 0;box-shadow:0 -14px 50px color-mix(in oklch,var(--ink),transparent 85%)}.compose-panel header{display:flex;justify-content:space-between;align-items:start;padding:1.2rem 1.25rem;border-bottom:1px solid var(--line)}.compose-panel h2{margin:.25rem 0 0;font-size:1.05rem}.compose-panel form{display:grid;grid-gap:.55rem;gap:.55rem;padding:1rem 1.25rem}.compose-panel textarea{min-height:220px;resize:vertical;line-height:1.5}.file{display:flex;align-items:center;gap:.4rem;color:var(--muted);font-size:.77rem;cursor:pointer}.file input{display:none}.compose-panel footer{display:flex;align-items:center;justify-content:space-between;padding-top:.5rem;color:var(--muted);font-size:.78rem}.toast{position:fixed;bottom:1.4rem;left:50%;transform:translateX(-50%);padding:.7rem 1rem;border-radius:9px;background:var(--ink);color:var(--paper);font-size:.84rem}@media(max-width:850px){.app-shell{grid-template-columns:72px 300px minmax(0,1fr)}.brand span:last-child,.compose{font-size:0}.compose svg{width:18px}.nav{padding:.9rem .55rem}.logout,.nav nav button{justify-content:center}.nav nav button{font-size:0}.logout svg,.nav nav svg{width:18px}.login-shell{grid-template-columns:1fr}.login-intro{padding:3rem 2rem 1rem}.login-intro h1{font-size:3rem}.login-panel{margin:1.5rem 2rem;max-width:none}}@media(max-width:650px){.app-shell{display:block;height:auto;min-height:100vh}.nav{height:58px;display:flex;flex-direction:row;align-items:center;padding:.65rem .9rem;border-right:0;border-bottom:1px solid var(--line)}.brand{padding:0;gap:.5rem}.brand span:last-child{font-size:.9rem}.compose{margin:0 0 0 auto;width:34px;height:34px;padding:0}.logout,.nav nav{display:none}.list{border-right:0}.reader{position:fixed;inset:58px 0 0;background:var(--paper);z-index:3}.reader:has(.empty-reader){display:none}.mobile-back{display:flex}.reader-bar{padding:.75rem 1rem}article{padding:2rem 1.25rem}.compose-panel{right:0;width:100vw;border-radius:16px 16px 0 0}.message-list{height:calc(100vh - 11.5rem)}}