:root{--bg:#f4f6f8;--ink:#17202a;--muted:#65717e;--line:#dfe4e8;--brand:#5b43d6;--brand2:#7c65ec;--white:#fff;--danger:#b42318;--success:#137a52;--shadow:0 12px 34px rgba(28,36,45,.07)}
.message.system{background:#edf9f3;border-radius:12px;padding:11px}.message.system .avatar{background:#d4f0e2;color:#08714a}.diff-card{padding:17px}.diff-card summary{cursor:pointer;font-weight:800}.diff-card pre{max-height:520px;overflow:auto;background:#111827;color:#e5e7eb;border-radius:9px;padding:12px;font:11px/1.5 ui-monospace,SFMono-Regular,Menlo,monospace;white-space:pre-wrap;overflow-wrap:anywhere}
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8px}.eyebrow{color:var(--brand);font-size:12px;text-transform:uppercase;letter-spacing:1.4px;font-weight:800;margin:0}.muted{color:var(--muted)}.title-row,.conversation-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:24px}.button{appearance:none;border:0;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;padding:11px 17px;font:inherit;font-weight:750;text-decoration:none;cursor:pointer}.button.primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:white}.button.secondary{background:#f1efff;color:#4731bd}.button.danger{background:#fff0ef;color:var(--danger)}.button.success{background:var(--success);color:white}.button:disabled{opacity:.5;cursor:not-allowed}.full{width:100%}.session-list{display:flex;flex-direction:column}.session-item{display:flex;justify-content:space-between;gap:24px;padding:19px 22px;text-decoration:none;color:inherit;border-bottom:1px solid 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13px;font:inherit;background:white}.stack input:focus,.stack select:focus,.stack textarea:focus,.composer textarea:focus{outline:3px solid #e6e1ff;border-color:var(--brand)}.stack small{font-weight:400;color:var(--muted)}.errorlist{color:var(--danger);margin:5px 0;padding-left:20px}.back{display:inline-block;color:var(--muted);text-decoration:none;margin-bottom:18px}.target-url{color:var(--muted);word-break:break-all}.flash{padding:13px 16px;border-radius:10px;margin:0 0 18px;background:#eef3ff;color:#294a88}.flash.error{background:#ffebe9;color:#8e1c13}.flash.success{background:#e3f6ec;color:#096643}.workspace-grid{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:22px;align-items:start}.chat{min-height:650px;overflow:hidden}.messages{padding:24px;min-height:500px;display:flex;flex-direction:column;gap:22px}.message{display:grid;grid-template-columns:36px 1fr;gap:11px}.message .avatar{width:36px;height:36px;display:grid;place-items:center;border-radius:10px;background:#ece8ff;color:#4932bb;font-size:12px;font-weight:850}.message.user .avatar{background:#e7edf2;color:#3d4b58}.message p{margin:4px 0}.message time,.revision time{font-size:11px;color:#8a949e}.welcome{text-align:center;margin:auto;max-width:430px;color:var(--muted)}.welcome h2{color:var(--ink);font-size:24px}.spark{font-size:35px;color:var(--brand)}.composer{border-top:1px solid var(--line);padding:18px;display:flex;align-items:end;gap:12px}.composer textarea{resize:vertical;margin:0}.side{display:flex;flex-direction:column;gap:16px}.action-card,.publish-card{padding:20px}.action-card p,.publish-card p,.danger-card p{color:var(--muted);font-size:13px}.revision{border-top:1px solid var(--line);padding:11px 0;display:flex;flex-direction:column}.revision strong{font-size:13px}.revision span{font-size:12px;color:var(--muted);overflow-wrap:anywhere}.danger-card{padding:17px}.danger-card summary{cursor:pointer;font-weight:800;color:var(--danger)}.danger-card form{margin-top:12px}.auth-card{margin-top:10vh}.auth-card input{font-size:17px}.auth-card .button{margin-top:6px}@media(max-width:850px){.workspace-grid{grid-template-columns:1fr}.side{order:-1}.conversation-head,.title-row{align-items:flex-start}.session-item{flex-direction:column}.session-meta{align-items:start;text-align:left}.topbar .muted{display:none}}@media(max-width:520px){.page{width:min(100% - 20px,1180px);margin-top:24px}.topbar{padding:0 14px}.topbar nav{gap:12px}.form-card,.auth-card{padding:24px}.conversation-head,.title-row{flex-direction:column}.title-row .button{width:100%}.composer{flex-direction:column}.composer .button{width:100%}}