:root{--bg:#f5f7fb;--card:#fff;--text:#111827;--muted:#6b7280;--border:#e5e7eb;--dark:#111827;--primary:#2563eb;--danger:#dc2626;--warning:#d97706;--success:#047857;--shadow:0 20px 60px rgba(15,23,42,.08)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.login-page{min-height:100vh;background:linear-gradient(135deg,#0f172a,#1e3a8a 55%,#111827)}.login-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.login-card{width:100%;max-width:420px;background:#fff;border-radius:24px;padding:34px;box-shadow:var(--shadow)}.brand-mark{width:54px;height:54px;border-radius:18px;background:#111827;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:24px;margin-bottom:18px}.brand-mark.small{width:38px;height:38px;border-radius:12px;font-size:17px;margin:0}.login-card h1{margin:0 0 8px;font-size:28px}.muted{color:var(--muted);margin:0 0 22px}.login-form label,.form-label{display:block;font-weight:700;font-size:13px;margin:16px 0 8px}.login-form input,.commit-input{width:100%;border:1px solid var(--border);border-radius:12px;padding:13px 14px;font-size:14px;background:#fff}.login-footnote{text-align:center;color:var(--muted);font-size:13px;margin:22px 0 0}.btn{border:0;border-radius:12px;padding:12px 16px;font-weight:800;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;font-size:14px}.btn-primary{background:var(--primary);color:#fff}.btn-dark{background:#111827;color:#fff}.btn-secondary{background:#eef2ff;color:#1e3a8a}.btn-ghost{background:#f3f4f6;color:#374151}.btn-full{width:100%;margin-top:18px}.alert{border-radius:14px;padding:14px 16px;margin-bottom:18px;font-size:14px}.alert-error{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}.alert-success{background:#ecfdf5;color:#065f46;border:1px solid #a7f3d0}.alert-info{background:#eff6ff;color:#1e40af;border:1px solid #bfdbfe}.app-layout{display:flex;min-height:100vh}.sidebar{width:270px;background:#0f172a;color:#fff;padding:22px;display:flex;flex-direction:column}.sidebar-brand{display:flex;gap:12px;align-items:center;margin-bottom:30px}.sidebar-brand span{display:block;color:#94a3b8;font-size:12px;margin-top:3px}.side-nav{display:flex;flex-direction:column;gap:8px}.side-nav a{color:#cbd5e1;text-decoration:none;padding:12px 14px;border-radius:12px;font-weight:700}.side-nav a.active{background:#1e293b;color:#fff}.logout-form{margin-top:0}.main-content{flex:1;padding:30px;overflow:auto}.page-header{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:22px}.page-header h1{font-size:30px;margin:0 0 6px}.page-header p{margin:0;color:var(--muted)}.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-bottom:16px}.stat-card,.editor-card,.status-strip{background:var(--card);border:1px solid var(--border);border-radius:18px;box-shadow:0 8px 30px rgba(15,23,42,.04)}.stat-card{padding:18px}.stat-card span,.status-strip span{display:block;color:var(--muted);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px}.stat-card strong{font-size:28px}.status-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;padding:16px 18px;margin-bottom:18px}.status-strip strong,.status-strip a{font-size:14px;color:#111827;word-break:break-word}.editor-card{padding:20px}.editor-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}.editor-toolbar h2{margin:0 0 4px}.editor-toolbar p{margin:0;color:var(--muted);font-size:14px}.validation-panel{display:flex;flex-direction:column;gap:8px;margin-bottom:14px}.validation-ok{background:#ecfdf5;border:1px solid #a7f3d0;color:#065f46;border-radius:12px;padding:12px 14px;font-weight:700}.validation-item{text-align:left;border:1px solid var(--border);background:#fff;border-radius:12px;padding:10px 12px;display:flex;gap:12px;cursor:pointer}.validation-item strong{min-width:68px}.validation-item.error{border-color:#fecaca;background:#fef2f2;color:#991b1b}.validation-item.warning{border-color:#fed7aa;background:#fff7ed;color:#9a3412}.editor-wrap{display:grid;grid-template-columns:58px 1fr;border:1px solid var(--border);border-radius:16px;overflow:hidden;background:#fff}.line-numbers{background:#f8fafc;color:#64748b;font-family:"SFMono-Regular",Consolas,monospace;font-size:13px;line-height:22px;text-align:right;padding:14px 10px;max-height:590px;overflow:hidden;border-right:1px solid var(--border)}.line-numbers div{height:22px}.line-numbers .line-error{background:#fee2e2;color:#991b1b;border-radius:6px;padding-right:6px}.line-numbers .line-warning{background:#ffedd5;color:#9a3412;border-radius:6px;padding-right:6px}#contentEditor{width:100%;height:590px;border:0;resize:vertical;padding:14px;font-family:"SFMono-Regular",Consolas,monospace;font-size:13px;line-height:22px;outline:none}.commit-textarea{min-height:104px;height:auto;resize:vertical;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.5;outline:none}.field-help{margin:8px 0 0;color:var(--muted);font-size:13px}.user-panel{margin-top:auto;margin-bottom:14px;background:#1e293b;border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:12px 14px}.user-panel span{display:block;color:#94a3b8;font-size:11px;text-transform:uppercase;letter-spacing:.05em;font-weight:800;margin-bottom:4px}.user-panel strong{color:#fff;font-size:14px}.form-actions{display:flex;justify-content:flex-end;margin-top:18px}@media(max-width:900px){.app-layout{flex-direction:column}.sidebar{width:auto}.stats-grid,.status-strip{grid-template-columns:1fr}.page-header{flex-direction:column}.main-content{padding:18px}}