:root{--color-structure:#101828;--color-action:#275dff;--color-action-hover:#1d4ed8;--color-canvas:#f5f6f8;--color-surface:#ffffff;--color-success:#16803c;--color-warning:#b54708;--color-danger:#b42318;--color-text-primary:#101828;--color-text-body:#1d2939;--color-text-secondary:#344054;--color-text-tertiary:#475467;--color-text-muted:#667085;--color-text-disabled:#98a2b3;--color-border-default:#e4e7ec;--color-border-strong:#d0d5dd;--color-border-subtle:#f2f4f7;--color-nav-hover:#1d2939;--color-nav-active:rgba(39,93,255,0.14);--color-nav-active-rail:rgba(39,93,255,0.18);--color-nav-text:#98a2b3;--color-nav-divider:#1d2939;--color-nav-count-urgent:#fdb022;--color-diff-added-bg:#ecfdf3;--color-diff-added-border:#75c99b;--color-diff-removed-bg:#fef3f2;--color-diff-removed-border:#fda29b;--color-warning-bg:#fffaf5;--color-info-bg:#eff3ff;--color-info-text:#1d4ed8;--color-danger-border:#fda29b;--font-sans:"IBM Plex Sans",system-ui,-apple-system,sans-serif;--font-mono:"IBM Plex Mono",ui-monospace,"SF Mono",monospace;--type-page-title-size:28px;--type-page-title-weight:650;--type-page-title-tracking:-0.02em;--type-page-title-height:1.15;--type-screen-heading-size:22px;--type-screen-heading-weight:650;--type-screen-heading-tracking:-0.01em;--type-screen-heading-height:1.25;--type-section-heading-size:17px;--type-section-heading-weight:600;--type-section-heading-tracking:-0.01em;--type-section-heading-height:1.4;--type-body-size:15px;--type-body-weight:400;--type-body-tracking:0;--type-body-height:1.66;--type-table-size:14px;--type-table-weight:400;--type-table-tracking:0;--type-table-height:1.45;--type-metadata-size:13px;--type-metadata-weight:400;--type-metadata-tracking:0;--type-metadata-height:1.5;--type-mono-ref-size:14px;--type-mono-ref-weight:500;--type-mono-ref-tracking:0;--type-mono-ref-height:1.4;--type-mono-label-size:11.5px;--type-mono-label-weight:500;--type-mono-label-tracking:0.1em;--type-mono-label-height:1.4;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-6:24px;--space-8:32px;--space-12:48px;--space-16:64px;--radius-control:6px;--radius-panel:10px;--radius-document:2px;--radius-pill:99px;--shadow-screen:0 1px 2px rgba(16,24,40,0.06);--shadow-drawer:-6px 0 16px rgba(16,24,40,0.05);--shadow-menu:0 4px 12px rgba(16,24,40,0.1);--size-nav-expanded:240px;--size-nav-collapsed:60px;--size-header-height:56px;--size-rail-reader:344px;--size-rail-decision:360px;--size-drawer-ai:400px;--size-document-width:800px;--size-form-column:760px}.tnum{font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.mono{font-family:var(--font-mono);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}*,:after,:before{box-sizing:border-box}body,html{margin:0;padding:0;height:100%}body{background:var(--color-canvas);color:var(--color-text-primary);font-family:var(--font-sans);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--color-action);text-decoration:none}a:hover{color:var(--color-action-hover);text-decoration:underline}button{cursor:pointer}button,input,select,textarea{font-family:inherit;font-size:inherit}:focus-visible{outline:2px solid var(--color-action);outline-offset:2px}h1,h2,h3,h4{margin:0;font-weight:600}p{margin:0}.admin-shell{min-height:100vh;display:flex;flex-direction:column}.admin-bar{display:flex;align-items:center;gap:14px;padding:0 24px;height:52px;background:var(--color-structure);color:#fff}.admin-mark{display:inline-flex;align-items:center;gap:9px;font-size:14px;font-weight:600}.admin-badge{padding:1px 7px;border-radius:3px;background:var(--color-warning);font-size:10.5px;font-weight:700;letter-spacing:.06em;color:#fff}.admin-nav{display:flex;gap:4px;margin-left:18px}.admin-nav a{padding:5px 11px;border-radius:var(--radius-control);font-size:13.5px;color:var(--color-nav-text);text-decoration:none}.admin-nav a:hover{background:var(--color-nav-hover);color:#fff;text-decoration:none}.admin-nav a[data-active=true]{background:var(--color-nav-active);color:#fff;font-weight:500}.admin-user{margin-left:auto;display:flex;align-items:center;gap:12px}.admin-signout,.admin-user{font-size:13px;color:var(--color-nav-text)}.admin-signout{border:none;background:none;padding:0}.admin-signout:hover{color:#fff}.admin-page{flex:1 1;padding:26px 32px 48px;max-width:1100px;width:100%}.admin-title{font-size:23px;font-weight:650;letter-spacing:-.015em}.admin-subtitle{margin-top:5px;font-size:14px;color:var(--color-text-tertiary)}.admin-section{margin-top:28px}.admin-section-title{font-size:11.5px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--color-text-muted)}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));grid-gap:18px;gap:18px;margin-top:12px}.stat{padding:14px 16px;border:1px solid var(--color-border-default);border-radius:var(--radius-control);background:var(--color-surface)}.stat-label{font-size:12.5px;color:var(--color-text-tertiary)}.stat-value{margin-top:5px;font-size:24px;font-weight:600;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.stat-meta{margin-top:3px;font-size:12.5px;color:var(--color-text-muted)}.usage-bar{margin-top:9px;height:5px;border-radius:var(--radius-pill);background:var(--color-border-default);overflow:hidden}.usage-fill{height:100%;background:var(--color-action)}.usage-fill[data-state=warn]{background:var(--color-warning)}.usage-fill[data-state=full]{background:var(--color-danger)}.plan-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));grid-gap:18px;gap:18px;margin-top:12px}.plan-card{padding:18px;border:1px solid var(--color-border-default);border-radius:var(--radius-control);background:var(--color-surface)}.plan-card[data-current=true]{border-color:var(--color-action);box-shadow:0 0 0 1px var(--color-action)}.plan-name{font-size:16px;font-weight:600}.plan-price{margin-top:6px;font-size:22px;font-weight:650;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.plan-period{font-size:13px;font-weight:400;color:var(--color-text-muted)}.plan-limits{margin:14px 0 0;padding:0;list-style:none;font-size:13.5px;color:var(--color-text-secondary)}.plan-limits li{padding:3px 0}.plan-current-tag{display:inline-block;margin-top:12px;font-size:12px;font-weight:500;color:var(--color-action)}.admin-empty{margin-top:14px;padding:28px;border:1px dashed var(--color-border-default);border-radius:var(--radius-control);font-size:14px;line-height:1.55;color:var(--color-text-tertiary)}.admin-login{max-width:380px;margin:90px auto;padding:0 20px}.field{margin-bottom:14px}.field label{display:block;margin-bottom:6px;font-size:13px;font-weight:500}.input{width:100%;height:38px;padding:0 11px;border:1px solid var(--color-border-strong);border-radius:var(--radius-control);background:var(--color-surface);color:var(--color-text-primary)}.error-text{margin-bottom:12px;font-size:13px;color:var(--color-danger)}.skeleton-bar{border-radius:4px;background:linear-gradient(90deg,var(--color-border-subtle) 25%,var(--color-border-default) 50%,var(--color-border-subtle) 75%);background-size:200% 100%;animation:shimmer 1.4s ease-in-out infinite}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}@media (prefers-reduced-motion:reduce){.skeleton-bar{animation:none}}