:root{--background:#f3f1eb;--surface:#fffdf8;--text:#202521;--muted:#68716c;--accent:#19624b;--accent-dark:#104b39;--line:#d8ddd7;--danger:#a33a32}*{box-sizing:border-box}body{background:var(--background);color:var(--text);margin:0;font-family:Inter,ui-sans-serif,system-ui,sans-serif}button,input,textarea{font:inherit}button{background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:7px;padding:.72rem 1rem}button:hover{background:var(--accent-dark)}button:disabled{cursor:wait;opacity:.65}.secondary{border:1px solid var(--line);background:var(--surface);color:var(--text)}.secondary:hover{background:#eeece6}.danger{color:var(--danger)}.center-card{place-items:center;min-height:100vh;padding:1rem;display:grid}.login-card{border:1px solid var(--line);background:var(--surface);border-radius:14px;width:min(100%,390px);padding:2rem;box-shadow:0 18px 50px #1a2a2214}.login-card h1{margin:0 0 2rem}label{color:var(--muted);gap:.45rem;margin-bottom:1rem;font-size:.85rem;font-weight:650;display:grid}input,textarea{border:1px solid var(--line);width:100%;color:var(--text);background:#fff;border-radius:7px;padding:.75rem;font-weight:400}input:focus,textarea:focus{border-color:var(--accent);outline:2px solid #19624b40}.login-card button{width:100%}.eyebrow{color:var(--muted);letter-spacing:.09em;text-transform:uppercase;margin:0 0 .5rem;font-size:.75rem;font-weight:700}.message{color:#174c3b;background:#e5f0ea;border-radius:7px;margin:0;padding:.75rem 1rem}.message.error{color:var(--danger);background:#f6e6e3;margin-top:1rem}.writer-shell{grid-template-columns:280px minmax(0,1fr);min-height:100vh;display:grid}.sidebar{border-right:1px solid var(--line);background:var(--surface);flex-direction:column;height:100vh;padding:1rem;display:flex;position:sticky;top:0}.sidebar-header,.toolbar{justify-content:space-between;align-items:center;gap:1rem;display:flex}.sidebar-header h1{font-size:1.25rem}.post-nav{flex:1;margin:1rem -.4rem;overflow-y:auto}.post-button{width:100%;color:var(--text);text-align:left;background:0 0;border-radius:6px;justify-content:space-between;gap:1rem;padding:.8rem;display:flex}.post-button:hover,.post-button.active{background:#ebece7}.post-button small{color:var(--muted)}.text-button{color:var(--muted);text-align:left;background:0 0}.text-button:hover{color:var(--text);background:0 0}.editor{padding:1.5rem;overflow-x:hidden}.toolbar{z-index:2;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#f3f1ebeb;margin:-1.5rem -1.5rem 1.5rem;padding:1rem 1.5rem;position:sticky;top:0}.toolbar>div{gap:.6rem;display:flex}.fields,.preview{border:1px solid var(--line);background:var(--surface);border-radius:12px;width:min(100%,840px);margin:1.5rem auto;padding:2rem}.markdown-input{resize:vertical;min-height:420px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;line-height:1.55}.preview{margin-top:2rem;font-family:Georgia,Times New Roman,serif;line-height:1.65}.preview .eyebrow,.preview-excerpt{font-family:Inter,ui-sans-serif,system-ui,sans-serif}.preview h1{font-size:2.5rem;line-height:1.1}.preview-excerpt,.muted{color:var(--muted)}.preview pre{color:#fff;background:#17211d;border-radius:7px;padding:1rem;overflow-x:auto}@media (max-width:800px){.writer-shell{display:block}.sidebar{border-right:0;border-bottom:1px solid var(--line);width:100%;height:auto;position:static}.post-nav{max-height:220px}.toolbar{flex-direction:column;align-items:flex-start}.fields,.preview{padding:1.25rem}}