/* Tools workspace — Stitch light corporate style */
:root{
  --bg:#f8f9fa;--bg2:#ffffff;--panel:#ffffff;--panel2:#f3f4f5;
  --line:#e5e7eb;--text:#191c1d;--muted:#6b7280;
  --accent:#e02424;--accent2:#b90010;--ok:#059669;--warn:#d97706;
  --radius:12px;--shadow:0 8px 24px rgba(17,24,39,.06);
  --font:"Inter","PingFang SC","Segoe UI",system-ui,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:var(--font)}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
.app{display:grid;grid-template-columns:280px 1fr;min-height:100vh}
.side{
  border-right:1px solid var(--line);background:var(--panel);
  padding:18px 14px;position:sticky;top:0;height:100vh;overflow:auto
}
.brand{display:flex;gap:10px;align-items:center;padding:6px 8px 16px}
.logo{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#fff;display:grid;place-items:center;font-weight:800;box-shadow:0 8px 18px rgba(224,36,36,.25)
}
.brand h1{font-size:15px;margin:0}
.brand p{margin:2px 0 0;color:var(--muted);font-size:12px}
.nav-section{margin:12px 0 4px;padding:0 8px;color:var(--muted);font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.nav-btn{
  width:100%;display:flex;gap:10px;align-items:center;border:1px solid transparent;
  background:transparent;color:var(--text);padding:10px 12px;border-radius:10px;cursor:pointer;text-align:left;margin:2px 0
}
.nav-btn:hover{background:var(--panel2)}
.nav-btn.active{background:#fff1f0;border-color:#f3b0ad;color:var(--accent2)}
.nav-btn .ico{width:22px;color:var(--muted);font-size:12px}
.side-foot{margin-top:18px;padding:12px;border:1px solid var(--line);border-radius:12px;background:var(--panel2);color:var(--muted);font-size:12px;line-height:1.5}
.side-foot strong{color:var(--ok)}
.main{padding:22px 24px 48px;min-width:0}
.topbar{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:18px;flex-wrap:wrap}
.topbar h2{margin:0;font-size:26px;letter-spacing:-.03em}
.topbar p{margin:8px 0 0;color:var(--muted);max-width:52ch;font-size:14px}
.links{display:flex;gap:8px;flex-wrap:wrap}
.chip{border:1px solid var(--line);background:#fff;color:var(--muted);padding:7px 11px;border-radius:999px;font-size:12px}
.chip a{color:var(--text)}
.workspace{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.panel-hd{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border-bottom:1px solid var(--line);background:#fcfcfd}
.panel-hd h3{margin:0;font-size:13px;font-weight:700}
.panel-bd{padding:14px}
.drop{
  border:1.5px dashed #d1d5db;border-radius:12px;padding:28px 14px;text-align:center;
  background:#fafafa;cursor:pointer
}
.drop:hover,.drop.drag{border-color:var(--accent);background:#fff5f5}
.drop strong{display:block;margin-bottom:6px}
.drop span{color:var(--muted);font-size:13px}
.file-list{display:flex;flex-direction:column;gap:8px;margin-top:12px;max-height:300px;overflow:auto}
.file-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;background:var(--panel2);border:1px solid var(--line)}
.file-item .meta{flex:1;min-width:0}
.file-item .name{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.file-item .sub{font-size:11px;color:var(--muted);font-family:var(--mono)}
.file-item button{border:0;background:transparent;color:var(--muted);cursor:pointer;border-radius:8px;padding:4px 6px}
.file-item button:hover{color:var(--accent);background:#ffe4e4}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end;margin-top:12px}
label.field{display:flex;flex-direction:column;gap:6px;font-size:12px;color:var(--muted);min-width:140px;flex:1}
label.field input,label.field select,label.field textarea{
  background:#fff;border:1px solid var(--line);color:var(--text);border-radius:8px;padding:10px 12px
}
label.field input:focus,label.field select:focus{outline:none;border-color:var(--accent)}
.btn{border:0;border-radius:10px;padding:11px 16px;cursor:pointer;font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 18px rgba(224,36,36,.2)}
.btn-primary:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}
.btn-ghost{background:#fff;color:var(--text);border:1px solid var(--line)}
.preview{min-height:280px;display:grid;place-items:center;background:#f3f4f5;border:1px solid var(--line);border-radius:12px;overflow:auto;padding:12px}
.preview img,.preview canvas{max-width:100%;height:auto;border-radius:8px}
.preview iframe{width:100%;min-height:360px;border:0;border-radius:8px;background:#fff}
.empty-preview{color:var(--muted);font-size:13px;text-align:center;padding:24px}
.status{margin-top:10px;font-size:13px;color:var(--muted);min-height:1.2em}
.status.ok{color:var(--ok)}
.status.err{color:#dc2626}
.progress{height:8px;background:#e5e7eb;border-radius:99px;overflow:hidden;margin-top:10px;display:none}
.progress>i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .2s}
.hero-tools{display:none}
.trust{margin-top:12px;display:grid;gap:8px}
.trust-item{font-size:12px;color:var(--muted);display:flex;gap:8px;align-items:center}
.dot{width:7px;height:7px;border-radius:50%;background:#d1d5db}
.dot.ok{background:var(--ok)}
.about{margin-top:24px}
.about h3{margin:0 0 12px;font-size:15px}
.about-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px}
.about article{border:1px solid var(--line);border-radius:12px;padding:14px;background:#fff}
.about h4{margin:0 0 6px;font-size:13px}
.about p{margin:0;color:var(--muted);font-size:12px;line-height:1.5}
.site-foot{margin-top:28px;padding-top:14px;border-top:1px solid var(--line);display:flex;gap:14px;flex-wrap:wrap;font-size:12px;color:var(--muted)}
.page-thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(72px,1fr));gap:8px;margin-top:10px}
.page-thumb{border:1px solid var(--line);border-radius:8px;padding:8px;text-align:center;font-size:11px;background:#fff;cursor:pointer}
.page-thumb.sel{border-color:var(--accent);background:#fff1f0}
@media(max-width:980px){
  .app{grid-template-columns:1fr}
  .side{position:relative;height:auto;border-right:0;border-bottom:1px solid var(--line)}
  .workspace{grid-template-columns:1fr}
  .hero-tools{display:flex;gap:8px;overflow:auto;padding-bottom:8px;margin-bottom:8px}
  .hero-tools button{white-space:nowrap;flex:0 0 auto}
  .hero-tools button.active{border-color:#f3b0ad;background:#fff1f0}
}