:root{--bg:#f5f5f3;--panel:#fff;--text:#171717;--muted:#666;--border:#deded8;--soft:#efefeb;--dark:#111;--accent:#c91459;--accent-dark:#9f0f44;--green:#147a4b;--shadow:0 18px 50px #00000014;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}.app-shell{grid-template-columns:248px minmax(0,1fr) 410px;height:100vh;display:grid;overflow:hidden}.sidebar,.planner{background:var(--panel);border-color:var(--border);overflow:auto}.sidebar{border-right:1px solid var(--border)}.planner{border-left:1px solid var(--border);flex-direction:column;display:flex}.brand-block,.planner-header{border-bottom:1px solid var(--border);padding:22px}.brand-block strong,.planner-header strong{letter-spacing:-.04em;margin-top:4px;font-size:22px;display:block}.eyebrow{text-transform:uppercase;letter-spacing:.13em;color:var(--accent);font-size:11px;font-weight:800;display:block}.category-list{gap:4px;padding:12px;display:grid}.category-button{color:var(--muted);text-align:left;background:0 0;border:0;border-radius:10px;justify-content:space-between;align-items:center;padding:10px 12px;display:flex}.category-button:hover{background:var(--soft);color:var(--text)}.category-button.active{background:var(--dark);color:#fff}.category-button em{background:#00000012;border-radius:999px;padding:2px 7px;font-size:12px;font-style:normal}.category-button.active em{background:#ffffff26}.main{min-width:0;padding:28px;overflow:auto}.topbar{grid-template-columns:minmax(0,1fr) 420px;align-items:end;gap:24px;margin-bottom:20px;display:grid}h1{letter-spacing:-.07em;max-width:840px;margin:8px 0 0;font-size:clamp(34px,4vw,58px);line-height:.95}.search-wrap{background:var(--panel);border:1px solid var(--border);border-radius:18px;padding:10px;box-shadow:0 10px 35px #0000000a}.search-wrap input{background:0 0;border:0;outline:0;width:100%;padding:12px 12px 8px}.search-wrap span{color:var(--muted);padding:0 12px 8px;font-size:12px;display:block}.subcat-row{gap:8px;margin-bottom:14px;padding-bottom:14px;display:flex;overflow-x:auto}.subcat-row button{white-space:nowrap;border:1px solid var(--border);background:var(--panel);color:var(--muted);border-radius:999px;padding:8px 12px}.subcat-row button.active{background:var(--accent);border-color:var(--accent);color:#fff}.cards-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;padding-bottom:80px;display:grid}.section-card{background:var(--panel);border:1px solid var(--border);border-radius:20px;padding:18px;box-shadow:0 6px 24px #0000000a}.card-top{justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.card-meta{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.id-pill,.cat-pill{border-radius:999px;padding:6px 8px;font-size:11px;font-weight:800;line-height:1}.id-pill{background:var(--dark);color:#fff}.cat-pill{color:var(--accent-dark);background:#f4dbe6}.subcat{color:var(--muted);font-size:12px}.section-card h3{letter-spacing:-.03em;margin:12px 0 8px;font-size:20px;line-height:1.08}.purpose{color:var(--text);margin:0 0 10px;font-weight:600}.layout-text{color:var(--muted);-webkit-line-clamp:4;-webkit-box-orient:vertical;margin:0;line-height:1.55;display:-webkit-box;overflow:hidden}.layout-text.open{display:block}.tag-row{flex-wrap:wrap;gap:6px;margin-top:14px;display:flex}.tag-row span{background:var(--soft);border:1px solid var(--border);color:#555;border-radius:999px;padding:4px 8px;font-size:11px}.card-actions{gap:8px;margin-top:14px;display:flex}.add-button,.ghost-button,.danger-button,.copy-main{border:1px solid var(--border);background:var(--panel);color:var(--text);border-radius:10px;padding:8px 10px}.add-button{min-width:68px;font-weight:800}.add-button.selected{background:var(--green);color:#fff;border-color:var(--green)}.ghost-button:hover,.add-button:hover{border-color:var(--dark)}.planner-header{justify-content:space-between;align-items:center;display:flex}.danger-button{color:#a40000;background:#fff5f5}.tab-row{border-bottom:1px solid var(--border);grid-template-columns:repeat(4,1fr);gap:6px;padding:12px;display:grid}.tab-row button{background:var(--soft);color:var(--muted);border:0;border-radius:9px;padding:9px;font-weight:700}.tab-row button.active{background:var(--dark);color:#fff}.planner-list,.brief-form,.prompt-panel{padding:14px;overflow:auto}.empty{color:var(--muted);background:var(--soft);border:1px dashed var(--border);border-radius:14px;padding:16px;line-height:1.5}.plan-item{background:var(--panel);border:1px solid var(--border);border-radius:14px;grid-template-columns:28px minmax(0,1fr) auto;align-items:start;gap:10px;margin-bottom:8px;padding:10px;display:grid}.order{background:var(--dark);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:26px;height:26px;font-size:12px;font-weight:800;display:inline-flex}.plan-item strong{font-size:13px;line-height:1.2;display:block}.plan-item small{color:var(--muted);margin-top:4px;display:block}.plan-controls{gap:4px;display:flex}.plan-controls button{border:1px solid var(--border);background:var(--soft);border-radius:7px;min-width:30px;min-height:26px;padding:3px 6px;font-size:10px;font-weight:800}.brief-form{gap:12px;display:grid}.brief-form label{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);gap:6px;font-size:12px;font-weight:800;display:grid}.brief-help{text-transform:none;letter-spacing:normal;color:#777;font-size:11px;font-weight:500;line-height:1.45}.brief-form input,.brief-form textarea,.prompt-panel textarea{border:1px solid var(--border);width:100%;color:var(--text);resize:vertical;background:#fff;border-radius:12px;outline:none;padding:11px 12px}.brief-form textarea{min-height:150px}.brief-form textarea.context-field{min-height:230px}.prompt-panel{flex-direction:column;flex:1;gap:10px;min-height:0;display:flex}.copy-main{background:var(--accent);color:#fff;border-color:var(--accent);font-weight:800}.prompt-panel textarea{min-height:65vh;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:12px;line-height:1.5}@media (width<=1250px){.app-shell{grid-template-columns:220px minmax(0,1fr)}.planner{z-index:20;width:min(420px,94vw);height:100vh;position:fixed;top:0;right:0;box-shadow:-20px 0 60px #0000001f}}@media (width<=980px){.app-shell{grid-template-columns:1fr}.sidebar{display:none}.planner{border-left:0;border-top:1px solid var(--border);width:auto;height:auto;position:static}.topbar,.cards-grid{grid-template-columns:1fr}.main{padding:18px}}