:root{--color-primary: #7b52cf;--color-primary-strong: #6339b9;--color-primary-soft: #f0eafd;--color-secondary: #3b6fca;--color-secondary-soft: #eaf1ff;--color-background: #f8f7fb;--color-surface: #ffffff;--color-surface-muted: #fbfaff;--color-text-primary: #1e1b2e;--color-text-secondary: #6b6880;--color-error: #c0392b;--color-error-soft: #fdeceb;--color-success: #1e8449;--color-success-soft: #e8f6ee;--color-warning: #9a6513;--color-warning-soft: #fff5dc;--color-border: #e2dff0;--color-focus: #3b6fca;--shadow-soft: 0 18px 42px rgb(30 27 46 / 8%);--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--radius-md: .5rem;--radius-lg: .75rem;--font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;color:var(--color-text-primary);background:var(--color-background);font-family:var(--font-sans);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0;background:var(--color-background)}button,input,select,textarea{font:inherit}button{cursor:pointer}a{color:inherit}:focus-visible{outline:3px solid var(--color-focus);outline-offset:3px}#root{min-height:100vh}.auth-screen,.full-page-state{display:grid;min-height:100vh;place-items:center;padding:var(--space-6)}.auth-card,.state-card{width:min(100%,28rem);padding:var(--space-8);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-soft)}.brand-lockup{display:flex;align-items:center;gap:var(--space-3);margin-bottom:var(--space-6)}.brand-mark{display:grid;width:2.5rem;height:2.5rem;place-items:center;border-radius:var(--radius-md);color:var(--color-surface);background:var(--color-primary);font-weight:800}.eyebrow{margin:0;color:var(--color-text-secondary);font-size:.875rem;font-weight:700;text-transform:uppercase}.auth-card h1,.state-card h1,.page-header h1{margin:0;color:var(--color-text-primary);font-size:clamp(1.75rem,3vw,2.25rem);line-height:1.1}.auth-card p,.state-card p,.page-header p,.muted{color:var(--color-text-secondary)}.form-stack{display:grid;gap:var(--space-4);margin-top:var(--space-6)}.field-group{display:grid;gap:var(--space-2)}.field-label{color:var(--color-text-primary);font-weight:700}.text-input{width:100%;min-height:2.75rem;padding:.7rem .85rem;border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-primary);background:var(--color-surface)}.field-error{color:var(--color-error);font-size:.9rem;font-weight:700}.button{display:inline-flex;min-height:2.75rem;align-items:center;justify-content:center;gap:var(--space-2);border:1px solid transparent;border-radius:var(--radius-md);padding:.65rem 1rem;font-weight:800;text-decoration:none}.button:disabled{cursor:not-allowed;opacity:.65}.button-primary{color:var(--color-surface);background:var(--color-primary)}.button-primary:hover:not(:disabled){background:var(--color-primary-strong)}.button-secondary{color:var(--color-primary);background:var(--color-primary-soft);border-color:var(--color-border)}.button-ghost{color:var(--color-text-primary);background:transparent;border-color:var(--color-border)}.auth-divider{display:flex;align-items:center;gap:var(--space-3);margin:var(--space-5) 0;color:var(--color-text-secondary);font-size:.875rem;font-weight:800}.auth-divider:before,.auth-divider:after{content:"";height:1px;flex:1;background:var(--color-border)}.auth-alt-actions{margin-top:0}.app-shell{display:grid;min-height:100vh;grid-template-columns:17rem minmax(0,1fr)}.sidebar{position:sticky;top:0;display:flex;height:100vh;flex-direction:column;border-right:1px solid var(--color-border);background:var(--color-surface);padding:var(--space-5)}.sidebar-nav{display:grid;gap:var(--space-2);margin-top:var(--space-5)}.nav-link{display:flex;align-items:center;gap:var(--space-3);border-radius:var(--radius-md);padding:.8rem .9rem;color:var(--color-text-secondary);font-weight:800;text-decoration:none}.nav-link:hover,.nav-link.active{color:var(--color-primary);background:var(--color-primary-soft)}.sidebar-footer{margin-top:auto;color:var(--color-text-secondary);font-size:.875rem}.main-column{min-width:0}.top-bar{position:sticky;top:0;z-index:5;display:flex;min-height:4.5rem;align-items:center;justify-content:space-between;gap:var(--space-4);border-bottom:1px solid var(--color-border);background:#f8f7fbeb;padding:var(--space-4) var(--space-6);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.top-bar-title{margin:0;font-size:1rem;font-weight:900}.top-bar-user{color:var(--color-text-secondary);font-size:.9rem}.page-content{display:grid;gap:var(--space-6);padding:var(--space-6)}.page-header{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-4)}.page-header p{max-width:46rem;margin:var(--space-2) 0 0}.grid{display:grid;gap:var(--space-4)}.metric-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.status-card-grid{grid-template-columns:repeat(auto-fit,minmax(10rem,1fr))}.two-column-grid{grid-template-columns:minmax(0,1.25fr) minmax(18rem,.75fr)}.card{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:0 8px 24px #1e1b2e0d}.card-body{padding:var(--space-5)}.card-title{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);margin:0 0 var(--space-3);font-size:1rem}.metric-value{margin:0;color:var(--color-text-primary);font-size:1.9rem;font-weight:900}.status-list{display:grid;gap:var(--space-3);margin:0;padding:0;list-style:none}.status-row{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);border-bottom:1px solid var(--color-border);padding:var(--space-3) 0}.status-row:last-child{border-bottom:0}.badge{display:inline-flex;align-items:center;border-radius:999px;padding:.25rem .6rem;font-size:.8rem;font-weight:900;white-space:nowrap}.badge-neutral{color:var(--color-text-secondary);background:var(--color-surface-muted);border:1px solid var(--color-border)}.badge-success{color:var(--color-success);background:var(--color-success-soft)}.badge-warning{color:var(--color-warning);background:var(--color-warning-soft)}.badge-error{color:var(--color-error);background:var(--color-error-soft)}.table-wrap{overflow-x:auto}.data-table{width:100%;border-collapse:collapse;text-align:left}.data-table th,.data-table td{border-bottom:1px solid var(--color-border);padding:.9rem 1rem;vertical-align:middle}.data-table th{color:var(--color-text-secondary);font-size:.8rem;text-transform:uppercase}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.empty-state,.loading-state,.error-state{display:grid;min-height:12rem;place-items:center;gap:var(--space-3);padding:var(--space-6);text-align:center}.loading-spinner{width:2rem;height:2rem;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:999px;animation:spin .8s linear infinite}.callout{border:1px solid var(--color-border);border-left:4px solid var(--color-primary);border-radius:var(--radius-md);background:var(--color-surface);padding:var(--space-4)}.success-callout{display:flex;align-items:flex-start;gap:var(--space-3);border-color:var(--color-success);border-left-color:var(--color-success);color:var(--color-success);background:var(--color-success-soft)}.actions-row{display:flex;flex-wrap:wrap;gap:var(--space-3)}.auth-switch{margin:var(--space-5) 0 0;color:var(--color-text-secondary)}.auth-switch a,.nav-text-link{color:var(--color-primary);font-weight:900;text-decoration:none}.auth-switch a:hover,.nav-text-link:hover{text-decoration:underline}.landing-page{min-height:100vh;overflow:hidden;background:linear-gradient(135deg,rgb(240 234 253 / 86%),transparent 38%),radial-gradient(circle at 84% 18%,rgb(234 241 255 / 95%),transparent 28%),var(--color-background)}.landing-nav{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);width:min(100% - 2rem,72rem);margin:0 auto;padding:var(--space-5) 0}.landing-brand,.landing-menu{display:flex;align-items:center}.landing-brand{gap:var(--space-3);color:var(--color-text-primary);font-size:1.1rem;font-weight:950;text-decoration:none}.landing-menu{gap:var(--space-4)}.landing-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(20rem,.85fr);align-items:center;gap:var(--space-8);width:min(100% - 2rem,72rem);min-height:calc(100vh - 21rem);margin:0 auto;padding:var(--space-8) 0}.landing-hero-copy{display:grid;gap:var(--space-5)}.landing-hero h1{margin:0;color:var(--color-text-primary);font-size:clamp(3rem,8vw,6.5rem);line-height:.92}.landing-lede{max-width:42rem;margin:0;color:var(--color-text-secondary);font-size:1.25rem;line-height:1.65}.landing-actions{margin-top:var(--space-2)}.landing-preview{display:grid;min-height:26rem;align-items:center}.preview-book{display:grid;gap:var(--space-5);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:#ffffffe0;box-shadow:var(--shadow-soft);padding:var(--space-8)}.preview-book h2{max-width:22rem;margin:var(--space-4) 0 0;color:var(--color-text-primary);font-size:clamp(1.8rem,4vw,3.2rem);line-height:1.02}.preview-book p{margin:0;color:var(--color-text-secondary);line-height:1.7}.preview-note{display:flex;align-items:center;gap:var(--space-3);border-top:1px solid var(--color-border);padding-top:var(--space-4);color:var(--color-text-primary);font-weight:900}.preview-dot{width:.85rem;height:.85rem;border-radius:999px;background:var(--color-secondary)}.landing-features{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-4);width:min(100% - 2rem,72rem);margin:0 auto;padding:0 0 var(--space-8)}.landing-footer{display:flex;width:min(100% - 2rem,72rem);justify-content:space-between;gap:var(--space-4);margin:0 auto;padding:0 0 var(--space-6);color:var(--color-text-secondary);font-size:.85rem;font-weight:700}.feature-card{display:grid;gap:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:#ffffffd1;padding:var(--space-5)}.feature-card svg{color:var(--color-primary)}.feature-card h2{margin:0;font-size:1.05rem}.feature-card p{margin:0;color:var(--color-text-secondary);line-height:1.55}.upload-panel{display:grid;gap:var(--space-5)}.form-card-body{display:grid;gap:var(--space-4)}.dropzone{display:grid;min-height:14rem;place-items:center;gap:var(--space-3);border:2px dashed var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface-muted);padding:var(--space-6);text-align:center}.dropzone-active,.dropzone:focus-visible{border-color:var(--color-primary);background:var(--color-primary-soft)}.dropzone-title{margin:0;color:var(--color-text-primary);font-weight:900}.upload-summary{display:grid;align-content:start;gap:var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface-muted);padding:var(--space-5)}.upload-summary h3{margin:0}.progress-block{display:grid;gap:var(--space-2)}.progress-label{display:flex;justify-content:space-between;gap:var(--space-3);font-weight:900}.upload-progress{width:100%;height:.85rem;accent-color:var(--color-primary)}.success-message{margin:0;color:var(--color-success);font-weight:900}.skeleton-stack{display:grid;gap:var(--space-4)}.skeleton-line{height:1rem;width:70%;border-radius:999px;background:var(--color-border)}.skeleton-line-wide{width:100%}.skeleton-line-short{width:45%}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:980px){.app-shell,.landing-hero,.landing-features{grid-template-columns:1fr}.landing-footer{flex-direction:column}.landing-hero{min-height:auto}.sidebar{position:static;height:auto;border-right:0;border-bottom:1px solid var(--color-border)}.sidebar-nav{grid-template-columns:repeat(2,minmax(0,1fr))}.metric-grid,.two-column-grid{grid-template-columns:1fr}}@media(max-width:640px){.auth-screen,.full-page-state,.page-content,.top-bar,.sidebar{padding:var(--space-4)}.page-header,.top-bar,.landing-nav{align-items:stretch;flex-direction:column}.landing-menu,.landing-actions{width:100%}.landing-menu .button,.landing-actions .button{flex:1 1 auto}.sidebar-nav{grid-template-columns:1fr}}