/* ── Cascade-style dialog steps ────────────────────── */
.cas-wrap{width:100%;padding:0 8px;margin:6px 0}
.cas-step{margin:4px 0;border-radius:8px;overflow:hidden;font-size:13px;line-height:1.5}
/* AI response - dark theme like Cascade */
.cas-ai{background:#1e1e2e;color:#cdd6f4;padding:10px 14px;border-radius:8px;white-space:pre-wrap;word-break:break-word}
.cas-ai b,.cas-ai strong{color:#f5c2e7}
.cas-ai code{background:#313244;padding:1px 5px;border-radius:3px;font-size:12px;font-family:'Cascadia Code','Fira Code',Consolas,monospace;color:#a6e3a1}
.cas-ai pre{background:#181825;padding:8px 10px;border-radius:6px;overflow-x:auto;margin:6px 0;font-size:11px;line-height:1.4}
.cas-ai pre code{background:none;padding:0;color:#cdd6f4}
.cas-ai h1,.cas-ai h2,.cas-ai h3{color:#89b4fa;margin:8px 0 4px;font-size:14px}
/* Code action - file card */
.cas-code{background:#1e1e2e;border:1px solid #313244;border-radius:8px;overflow:hidden}
.cas-code-head{display:flex;align-items:center;gap:6px;padding:6px 10px;background:#181825;font-size:12px;color:#89b4fa;font-family:'Cascadia Code',Consolas,monospace;cursor:pointer}
.cas-code-head svg{width:14px;height:14px;fill:#89b4fa;flex-shrink:0}
.cas-code-body{padding:0}
.cas-diff{font-family:'Cascadia Code','Fira Code',Consolas,monospace;font-size:11px;line-height:1.5;overflow-x:auto}
.cas-diff-old{background:rgba(248,81,73,.15);color:#ffa198;padding:2px 10px;border-left:3px solid #f85149}
.cas-diff-new{background:rgba(63,185,80,.15);color:#7ee787;padding:2px 10px;border-left:3px solid #3fb950}
/* Command - terminal style */
.cas-cmd{background:#0d1117;color:#58a6ff;padding:8px 12px;border-radius:8px;font-family:'Cascadia Code',Consolas,monospace;font-size:12px;white-space:pre-wrap;word-break:break-all;border:1px solid #21262d}
.cas-cmd::before{content:'$ ';color:#7d8590}
/* Tool call */
.cas-tool{background:#161b22;color:#d2a8ff;padding:6px 12px;border-radius:8px;font-size:12px;border:1px solid #30363d;display:flex;align-items:center;gap:6px}
.cas-tool::before{content:'🔧';font-size:14px}
/* Step label */
.cas-label{font-size:10px;color:#7d8590;margin:8px 8px 2px;display:flex;align-items:center;gap:4px}