@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap");:root{color-scheme:light;--primary:#0a2540;--primary-hover:#1a3a5f;--primary-light:#e6edf5;--primary-dark:#051829;--background:#fafbfc;--surface:#fff;--surface-hover:#f7f9fa;--surface-alt:#f4f5f7;--text-primary:#172b4d;--text-secondary:#5e6c84;--text-muted:#8993a4;--text-inverse:#fff;--border:#dfe1e6;--border-light:#ebecf0;--border-dark:#c1c7d0;--success:#36b37e;--success-light:#e3fcef;--warning:#ffab00;--warning-light:#fff4db;--danger:#de350b;--danger-light:#ffebe6;--info:#0a2540;--info-light:#e6edf5;--shadow-xs:0 1px 2px rgba(9,30,66,.08);--shadow-sm:0 2px 4px rgba(9,30,66,.1);--shadow-md:0 4px 8px rgba(9,30,66,.12);--shadow-lg:0 8px 16px rgba(9,30,66,.15);--shadow-xl:0 12px 24px rgba(9,30,66,.18);--sidebar-bg:#fff;--sidebar-border:var(--border);--header-bg:#fff;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--space-2xl:48px;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--radius-full:9999px;--transition:0.2s cubic-bezier(0.4,0,0.2,1);--transition-slow:0.3s cubic-bezier(0.4,0,0.2,1);--font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI","Roboto","Helvetica Neue",Arial,sans-serif;--font-size-xs:11px;--font-size-sm:12px;--font-size-base:14px;--font-size-md:16px;--font-size-lg:18px;--font-size-xl:20px;--font-size-2xl:24px;--font-size-3xl:30px;--font-size-4xl:36px;--line-height-tight:1.2;--line-height-base:1.5;--line-height-relaxed:1.75}[data-theme=dark]{color-scheme:dark;--background:#1a1d23;--surface:#22272b;--surface-hover:#2c333a;--surface-alt:#282e33;--text-primary:#e6eaed;--text-secondary:#b6c2cf;--text-muted:#8993a5;--text-inverse:#172b4d;--border:#343a40;--border-light:#2c3338;--border-dark:#454f59;--primary:#3a5f8f;--primary-hover:#5a7faf;--primary-light:#1a2f4f;--success:#57d9a3;--success-light:#193d2f;--warning:#ffc400;--warning-light:#38291e;--danger:#ff7452;--danger-light:#3d2623;--info:#2684ff;--info-light:#0a2e5c;--shadow-xs:0 1px 2px rgba(0,0,0,.3);--shadow-sm:0 2px 4px rgba(0,0,0,.35);--shadow-md:0 4px 8px rgba(0,0,0,.4);--shadow-lg:0 8px 16px rgba(0,0,0,.45);--shadow-xl:0 12px 24px rgba(0,0,0,.5);--sidebar-bg:#22272b;--sidebar-border:var(--border);--header-bg:#22272b}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body,html{min-height:100%;scroll-behavior:smooth}body{font-family:var(--font-family);line-height:var(--line-height-base);background:var(--background);transition:background var(--transition),color 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var(--transition);width:100%}input:hover,select:hover,textarea:hover{border-color:var(--border-dark)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);background:var(--surface)}input::placeholder,textarea::placeholder{color:var(--text-muted)}textarea{resize:vertical;min-height:120px;line-height:var(--line-height-relaxed)}.btn{gap:var(--space-sm);padding:10px 16px;border-radius:var(--radius-md);font-family:var(--font-family);font-size:var(--font-size-base);font-weight:500;line-height:1;border:2px solid transparent;transition:all 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button.success{color:var(--success)}.file-history__actions button.danger{color:var(--danger)}.file-history__actions button:disabled{opacity:.6;cursor:not-allowed;border-color:transparent}.file-history__grid{display:grid;grid-gap:18px;gap:18px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.file-history__card{border:1px solid var(--border);border-radius:18px;padding:18px;background:var(--surface-alt);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:14px}.file-history__card-header{display:flex;flex-direction:column;gap:6px;align-items:center;text-align:center}.file-history__card-meta{display:flex;flex-direction:column;gap:6px;font-size:.85rem;color:var(--text-secondary)}.file-history__card-actions{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}.file-history__card-actions button{padding:6px 12px;border-radius:10px;border:1px solid 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0;color:var(--text-secondary)}.spinner{width:44px;height:44px;border-radius:999px;border:4px solid var(--border);border-top-color:var(--accent);animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.file-history__pagination{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:16px;border-top:1px solid var(--border);color:var(--text-secondary);font-size:.9rem}.file-history__pagination-buttons{display:flex;gap:10px}.file-history__pagination .btn-secondary{padding:8px 16px}.modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.55);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;padding:20px;z-index:100}.modal{background:var(--surface);border-radius:20px;border:1px solid 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var(--border);border-radius:var(--radius-lg);padding:var(--space-lg);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:var(--space-md);transition:box-shadow var(--transition)}.panel:hover{box-shadow:var(--shadow-md)}.panel__header{display:flex;align-items:center;justify-content:space-between;gap:var(--space-md);padding-bottom:var(--space-md);border-bottom:1px solid var(--border-light)}.panel__title{margin:0;font-size:var(--font-size-xl);font-weight:600;color:var(--text-primary)}.panel__description{margin:0;color:var(--text-secondary);font-size:var(--font-size-base);line-height:var(--line-height-relaxed)}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-lg);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:var(--space-sm);transition:all var(--transition)}.stat-card:hover{border-color:var(--primary);box-shadow:var(--shadow-md)}.stat-card__label{color:var(--text-secondary);font-size:var(--font-size-sm);font-weight:500;text-transform:uppercase;letter-spacing:.5px}.stat-card__value{font-size:var(--font-size-3xl);font-weight:600;color:var(--text-primary);line-height:1}.stat-card__meta{display:flex;align-items:center;gap:var(--space-sm);color:var(--text-muted);font-size:var(--font-size-sm)}.stat-card__trend{font-weight:600;color:var(--success)}.upload-dropzone{border:2px dashed var(--border);border-radius:16px;padding:28px;text-align:center;background:var(--surface-muted);transition:border-color var(--transition),background var(--transition)}.upload-dropzone.is-dragging{border-color:var(--accent);background:rgba(37,99,235,.12);box-shadow:0 0 0 4px var(--accent-soft)}.upload-dropzone:hover{border-color:var(--accent);background:rgba(37,99,235,.08)}.progress-track{height:6px;border-radius:999px;background:var(--surface-muted);overflow:hidden}.progress-bar{height:100%;background:linear-gradient(90deg,var(--accent) 0,var(--accent-hover) 100%);transition:width .3s ease}.progress-indeterminate{background:linear-gradient(90deg,transparent 0,var(--accent) 25%,var(--accent-hover) 50%,var(--accent) 75%,transparent 100%);background-size:200% 100%}@keyframes progress-pulse{0%{background-position:200% 0;opacity:.6}50%{opacity:1}to{background-position:-200% 0;opacity:.6}}.file-grid{display:grid;grid-gap:16px;gap:16px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.file-card{padding:18px;border-radius:16px;border:1px solid var(--border);background:var(--surface-alt);display:flex;flex-direction:column;gap:12px}.file-card__title{font-weight:600}.file-card__meta{display:flex;flex-direction:column;gap:4px;color:var(--text-muted);font-size:.85rem}.chip{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;background:var(--surface-muted);color:var(--text-secondary);font-size:12px}.chat-container{gap:16px}.chat-container,.chat-log{display:flex;flex-direction:column}.chat-log{max-height:420px;overflow-y:auto;gap:14px;padding-right:4px}.chat-message{padding:14px 18px;border-radius:16px;max-width:80%;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:6px}.chat-message--assistant{background:var(--surface);border:1px solid var(--border);align-self:flex-start}.chat-message--user{background:linear-gradient(135deg,var(--accent) 0,var(--accent-hover) 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