:root{color-scheme:light;--bg: #f5f7fb;--bg-elevated: #ffffff;--surface: #ffffff;--surface-muted: #f2f5fa;--border: #d8e0ea;--text: #172033;--muted: #5d6b84;--accent: #1f4fd8;--accent-weak: #e9efff;--success: #127a45;--success-weak: #e4f5ea;--warning: #9a5b00;--warning-weak: #fff4df;--danger: #b42318;--danger-weak: #fdecec;--shadow: 0 12px 30px rgba(15, 23, 42, .08);--radius: 14px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.45;font-weight:400;color:var(--text);background:var(--bg)}*{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}body{background:radial-gradient(circle at top left,rgba(31,79,216,.06),transparent 28%),linear-gradient(180deg,#f9fbff,#f5f7fb);color:var(--text)}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.app-shell{display:grid;grid-template-columns:288px minmax(0,1fr);min-height:100vh}.sidebar{display:flex;flex-direction:column;gap:20px;padding:20px;border-right:1px solid var(--border);background:#ffffffc7;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.brand{display:flex;align-items:center;gap:12px}.brand-mark,.login-mark,.empty-icon,.banner-icon{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;background:var(--accent-weak);color:var(--accent)}.brand strong,.login-hero h1,.section-title h1,.card-header h2{margin:0;font-weight:650}.brand span{display:block;color:var(--muted);font-size:13px}.nav{display:flex;flex-direction:column;gap:6px}.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;color:var(--text)}.nav-item.active{background:var(--accent-weak);color:var(--accent)}.sidebar-footer{display:flex;flex-direction:column;gap:12px;margin-top:auto}.session-card{display:flex;flex-direction:column;gap:8px;padding:12px;border:1px solid var(--border);border-radius:12px;background:var(--surface)}.session-row{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px}.content-shell{display:flex;flex-direction:column;min-width:0}.top-banner{padding:20px 20px 0}.content{padding:20px}.page-stack{display:flex;flex-direction:column;gap:18px}.two-column{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.surface{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.card-header,.section-title{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.card-header{padding:18px 18px 0}.section-title h1{font-size:28px}.section-title p,.card-header p,.stat-card p,.empty-state p,.banner p,.field-hint,.brand span{margin:4px 0 0;color:var(--muted)}.section-title{padding:0 4px}.section-actions,.inline-actions,.row-actions,.button-row{display:flex;flex-wrap:wrap;gap:8px}.inline-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600;border:1px solid transparent}.badge-neutral{background:#eef2f7;color:#445065}.badge-success{background:var(--success-weak);color:var(--success)}.badge-warning{background:var(--warning-weak);color:var(--warning)}.badge-danger{background:var(--danger-weak);color:var(--danger)}.badge-info{background:var(--accent-weak);color:var(--accent)}.input{width:100%;min-height:42px;padding:10px 12px;border:1px solid var(--border);border-radius:10px;background:var(--surface);color:var(--text);font:inherit}.textarea{min-height:220px;resize:vertical;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,monospace;line-height:1.5}.field{display:flex;flex-direction:column;gap:6px}.field-label{font-size:13px;font-weight:600}.field-error{font-size:12px;color:var(--danger)}.table-wrap{overflow-x:auto}.table{width:100%;border-collapse:collapse;min-width:720px}.table th,.table td{padding:14px 18px;border-top:1px solid var(--border);vertical-align:top;text-align:left}.table th{border-top:none;color:var(--muted);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.02em}.stat-card{display:flex;flex-direction:column;gap:10px;padding:18px}.stat-card span{display:block;font-size:12px;color:var(--muted);text-transform:uppercase}.stat-card strong{display:block;margin-top:6px;font-size:24px}.empty-state{display:flex;flex-direction:column;align-items:center;gap:10px;padding:32px 20px;text-align:center}.empty-state h3,.login-hero h1{margin:0;font-size:22px}.empty-action{margin-top:4px}.banner{display:flex;align-items:flex-start;gap:12px;padding:14px 16px;border-radius:12px;border:1px solid var(--border);background:var(--surface)}.banner strong{display:block}.banner-info{background:#eef5ff;border-color:#cfe0ff}.banner-warning{background:#fff8e8;border-color:#f1d89b}.banner-danger{background:#fff0ef;border-color:#f3c0bc}.banner-success{background:#edf9f0;border-color:#bfebc9}.loading-state{display:inline-flex;align-items:center;gap:10px;color:var(--muted)}.spin{animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.code-block{margin:0;padding:18px;overflow:auto;background:#0f172a;color:#d4e2ff;border-radius:0 0 var(--radius) var(--radius);font-size:12px;line-height:1.6}.detail-stack{display:grid;gap:12px;padding:18px}.kv{display:grid;gap:4px}.kv span{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.02em}.kv strong{font-size:14px;word-break:break-word}.form-grid{display:grid;gap:16px;padding:18px}.form-actions{display:flex;flex-wrap:wrap;gap:10px;padding-top:8px}.filter-row{display:grid;grid-template-columns:1.5fr 1fr .8fr auto;gap:14px;padding:18px;align-items:end}.filter-actions{display:flex;gap:8px;align-items:center}.toggle{display:flex;align-items:center;gap:10px;min-height:42px}.pager{display:flex;align-items:center;justify-content:space-between;gap:12px}.login-screen{min-height:100vh;display:grid;place-items:center;padding:24px}.login-card{width:min(560px,100%);padding:24px}.login-hero{display:grid;gap:12px;margin-bottom:18px}.login-actions{display:flex;justify-content:flex-end}.boot-screen{min-height:100vh;display:grid;place-items:center;padding:24px}.cell-stack{display:grid;gap:4px}.cell-stack span{color:var(--muted);font-size:12px}@media(max-width:1100px){.app-shell{grid-template-columns:1fr}.sidebar{position:sticky;top:0;z-index:10;border-right:none;border-bottom:1px solid var(--border)}.two-column,.stat-grid,.filter-row{grid-template-columns:1fr}}