@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";:root{--bg-primary:#0a0e1a;--bg-secondary:#111827;--bg-tertiary:#1a2035;--bg-card:#111827b3;--bg-glass:#ffffff08;--bg-glass-hover:#ffffff0f;--bg-input:#ffffff0d;--border-primary:#ffffff14;--border-hover:#ffffff26;--border-focus:#6366f180;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--text-tertiary:#64748b;--text-muted:#475569;--accent-primary:#6366f1;--accent-primary-hover:#818cf8;--accent-primary-glow:#6366f140;--accent-secondary:#8b5cf6;--accent-gradient:linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);--success:#10b981;--success-bg:#10b9811f;--success-border:#10b9814d;--warning:#f59e0b;--warning-bg:#f59e0b1f;--warning-border:#f59e0b4d;--error:#ef4444;--error-bg:#ef44441f;--error-border:#ef44444d;--info:#3b82f6;--info-bg:#3b82f61f;--font-family:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono:"JetBrains Mono", "Fira Code", monospace;--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--space-16:4rem;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-xl:20px;--radius-full:9999px;--shadow-sm:0 1px 3px #0000004d;--shadow-md:0 4px 14px #00000059;--shadow-lg:0 10px 30px #0006;--shadow-glow:0 0 20px var(--accent-primary-glow);--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-base:.25s cubic-bezier(.4, 0, .2, 1);--transition-slow:.4s cubic-bezier(.4, 0, .2, 1);--sidebar-width:260px;--header-height:64px;--max-content-width:1400px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-family);background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6;overflow-x:hidden}body:before{content:"";pointer-events:none;z-index:-1;background:radial-gradient(circle at 30% 20%,#6366f10a 0%,#0000 50%),radial-gradient(circle at 70% 80%,#8b5cf608 0%,#0000 50%);width:200%;height:200%;position:fixed;top:-50%;left:-50%}#root{flex-direction:column;min-height:100vh;display:flex}a{color:var(--accent-primary);transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--accent-primary-hover)}h1,h2,h3,h4,h5,h6{letter-spacing:-.01em;font-weight:700;line-height:1.3}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.25rem}h4{font-size:1.1rem}.card{background:var(--bg-card);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border-primary);border-radius:var(--radius-lg);padding:var(--space-6);transition:all var(--transition-base)}.card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-md)}.card-glass{background:var(--bg-glass);-webkit-backdrop-filter:blur(24px);border:1px solid var(--border-primary);border-radius:var(--radius-lg);padding:var(--space-6)}.btn{justify-content:center;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-5);border-radius:var(--radius-md);font-family:var(--font-family);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;border:none;font-size:.9rem;font-weight:600;line-height:1.4;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent-gradient);color:#fff;box-shadow:var(--shadow-sm), 0 0 0 0 var(--accent-primary-glow)}.btn-primary:hover:not(:disabled){box-shadow:var(--shadow-md), var(--shadow-glow);transform:translateY(-1px)}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-secondary{background:var(--bg-glass);color:var(--text-primary);border:1px solid var(--border-primary)}.btn-secondary:hover:not(:disabled){background:var(--bg-glass-hover);border-color:var(--border-hover)}.btn-danger{background:var(--error-bg);color:var(--error);border:1px solid var(--error-border)}.btn-danger:hover:not(:disabled){background:#ef444433}.btn-sm{padding:var(--space-1) var(--space-3);font-size:.8rem}.btn-lg{padding:var(--space-4) var(--space-8);font-size:1rem}.input,.textarea,.select{width:100%;padding:var(--space-3) var(--space-4);background:var(--bg-input);border:1px solid var(--border-primary);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-family);transition:all var(--transition-fast);outline:none;font-size:.95rem}.input:focus,.textarea:focus,.select:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px var(--accent-primary-glow)}.input::placeholder{color:var(--text-tertiary)}.badge{border-radius:var(--radius-full);letter-spacing:.02em;text-transform:uppercase;align-items:center;padding:2px 10px;font-size:.75rem;font-weight:600;display:inline-flex}.badge-success{background:var(--success-bg);color:var(--success);border:1px solid var(--success-border)}.badge-warning{background:var(--warning-bg);color:var(--warning);border:1px solid var(--warning-border)}.badge-error{background:var(--error-bg);color:var(--error);border:1px solid var(--error-border)}.badge-info{background:var(--info-bg);color:var(--info);border:1px solid #3b82f64d}.badge-neutral{background:var(--bg-glass);color:var(--text-secondary);border:1px solid var(--border-primary)}.progress-bar{background:var(--bg-input);border-radius:var(--radius-full);width:100%;height:6px;overflow:hidden}.progress-bar-fill{background:var(--accent-gradient);border-radius:var(--radius-full);height:100%;transition:width var(--transition-slow)}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.animate-fade-in{animation:.4s ease-out fadeIn}.animate-slide-in{animation:.4s ease-out slideInRight}.animate-pulse{animation:2s infinite pulse}.animate-spin{animation:1s linear infinite spin}.skeleton{background:linear-gradient(90deg, var(--bg-glass) 25%, var(--bg-glass-hover) 50%, var(--bg-glass) 75%);border-radius:var(--radius-sm);background-size:200% 100%;animation:1.5s infinite shimmer}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-primary);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--border-hover)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-1{gap:var(--space-1)}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.gap-4{gap:var(--space-4)}.gap-6{gap:var(--space-6)}.gap-8{gap:var(--space-8)}.w-full{width:100%}.text-center{text-align:center}.text-sm{font-size:.875rem}.text-xs{font-size:.75rem}.text-secondary{color:var(--text-secondary)}.text-muted{color:var(--text-muted)}.font-mono{font-family:var(--font-mono)}.truncate{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.stats-grid{gap:var(--space-4);margin-bottom:var(--space-8);grid-template-columns:repeat(auto-fill,minmax(220px,1fr));display:grid}.stat-card{align-items:center;gap:var(--space-4);padding:var(--space-5);display:flex}.stat-icon{border-radius:var(--radius-md);flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;display:flex}.stat-icon-total{background:var(--info-bg);color:var(--info)}.stat-icon-complete{background:var(--success-bg);color:var(--success)}.stat-icon-score{color:#f59e0b;background:#f59e0b1f}.stat-icon-review{background:var(--warning-bg);color:var(--warning)}.stat-info{flex-direction:column;display:flex}.stat-value{font-size:1.5rem;font-weight:700;line-height:1.2}.stat-label{color:var(--text-tertiary);font-size:.8rem;font-weight:500}.dashboard-actions{margin-bottom:var(--space-6);justify-content:space-between;align-items:center;display:flex}.dashboard-actions h2{font-size:1.2rem}.evaluations-list{gap:var(--space-4);flex-direction:column;display:flex}.evaluation-card{cursor:pointer;transition:all var(--transition-fast)}.evaluation-card:hover{border-color:var(--accent-primary);box-shadow:var(--shadow-lg), var(--shadow-glow);transform:translateY(-2px)}.eval-card-header{margin-bottom:var(--space-3);justify-content:space-between;align-items:flex-start;display:flex}.eval-card-title{align-items:center;gap:var(--space-3);display:flex}.eval-card-title h3{font-size:1rem;font-weight:600}.eval-card-meta{margin-bottom:var(--space-4);justify-content:space-between;display:flex}.eval-card-scores{gap:var(--space-3);padding-top:var(--space-4);border-top:1px solid var(--border-primary);grid-template-columns:repeat(4,1fr);display:grid}.score-item{text-align:center;flex-direction:column;align-items:center;display:flex}.score-value{color:var(--text-primary);font-size:1.1rem;font-weight:700}.score-label{color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.04em;margin-top:2px;font-size:.7rem}.eval-card-progress{gap:var(--space-2);padding-top:var(--space-4);border-top:1px solid var(--border-primary);flex-direction:column;display:flex}.empty-state{align-items:center;gap:var(--space-4);padding:var(--space-16) var(--space-8);text-align:center;flex-direction:column;display:flex}.empty-state h3{font-size:1.2rem}.loading-grid{gap:var(--space-4);flex-direction:column;display:flex}.skeleton-card{padding:var(--space-6)}.upload-page{max-width:900px;margin:0 auto}.upload-grid{gap:var(--space-4);margin-bottom:var(--space-6);grid-template-columns:repeat(auto-fill,minmax(260px,1fr));display:grid}.upload-zone{cursor:pointer;text-align:center;border:2px dashed var(--border-primary);min-height:200px;transition:all var(--transition-base);justify-content:center;align-items:center;display:flex;position:relative}.upload-zone:hover{border-color:var(--accent-primary);background:var(--accent-primary-glow)}.upload-zone.has-file{border-style:solid;border-color:var(--success-border);background:var(--success-bg)}.upload-placeholder{align-items:center;gap:var(--space-2);padding:var(--space-4);flex-direction:column;display:flex}.upload-icon{margin-bottom:var(--space-2);font-size:2.5rem}.upload-placeholder h3{font-size:.95rem;font-weight:600}.upload-hint{margin-top:var(--space-2);background:var(--bg-glass);border-radius:var(--radius-full);padding:3px 10px}.file-selected{align-items:center;gap:var(--space-3);padding:var(--space-4);flex-direction:column;width:100%;display:flex}.file-icon-large{font-size:2rem}.file-info{flex-direction:column;align-items:center;gap:2px;display:flex}.file-name{word-break:break-all;text-align:center;font-size:.9rem;font-weight:600}.remove-btn{margin-top:var(--space-2)}.error-message{align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-4);background:var(--error-bg);border:1px solid var(--error-border);border-radius:var(--radius-md);color:var(--error);margin-bottom:var(--space-6);font-size:.9rem;animation:.3s ease-out fadeIn;display:flex}.upload-actions{justify-content:center;display:flex}.spinner{border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:18px;height:18px;animation:.6s linear infinite spin}.eval-view{max-width:1100px;margin:0 auto}.eval-header{margin-bottom:var(--space-6);justify-content:space-between;align-items:flex-start;gap:var(--space-4);flex-wrap:wrap;display:flex}.eval-header h1{margin-top:var(--space-3);font-size:1.5rem}.eval-header-actions{gap:var(--space-2);flex-wrap:wrap;display:flex}.pipeline-tracker{margin-bottom:var(--space-6)}.pipeline-tracker h3{margin-bottom:var(--space-4);font-size:1rem}.pipeline-steps{margin-bottom:var(--space-4);justify-content:space-between;display:flex;position:relative}.pipeline-steps:before{content:"";background:var(--border-primary);height:2px;position:absolute;top:12px;left:24px;right:24px}.pipeline-step{align-items:center;gap:var(--space-2);z-index:1;flex-direction:column;display:flex;position:relative}.step-dot{background:var(--bg-secondary);border:2px solid var(--border-primary);width:24px;height:24px;color:var(--text-tertiary);transition:all var(--transition-base);border-radius:50%;justify-content:center;align-items:center;font-size:.65rem;font-weight:700;display:flex}.pipeline-step.done .step-dot{background:var(--success);border-color:var(--success);color:#fff}.pipeline-step.active .step-dot{background:var(--accent-primary);border-color:var(--accent-primary);box-shadow:0 0 12px var(--accent-primary-glow)}.step-pulse{background:#fff;border-radius:50%;width:8px;height:8px;animation:1.5s infinite pulse}.step-label{color:var(--text-tertiary);text-align:center;max-width:80px;font-size:.7rem}.pipeline-step.done .step-label,.pipeline-step.active .step-label{color:var(--text-secondary)}.pipeline-status{gap:var(--space-2);flex-direction:column;display:flex}.score-summary{margin-bottom:var(--space-6)}.score-main{align-items:center;gap:var(--space-8);padding:var(--space-6) var(--space-8);display:flex}.score-circle{border:4px solid;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:100px;height:100px;display:flex}.score-circle[data-pct=high]{border-color:var(--success);background:var(--success-bg)}.score-circle[data-pct=mid]{border-color:var(--warning);background:var(--warning-bg)}.score-circle[data-pct=low]{border-color:var(--error);background:var(--error-bg)}.score-pct{font-size:1.75rem;font-weight:800}.score-details{gap:var(--space-2);flex-direction:column;flex:1;display:flex}.score-row{padding:var(--space-1) 0;border-bottom:1px solid var(--border-primary);justify-content:space-between;font-size:.9rem;display:flex}.score-row span{color:var(--text-secondary)}.score-row strong{color:var(--text-primary)}.text-warning{color:var(--warning)!important}.view-tabs{gap:var(--space-1);margin-bottom:var(--space-6);border-bottom:1px solid var(--border-primary);padding-bottom:var(--space-1);display:flex}.tab-btn{padding:var(--space-2) var(--space-4);color:var(--text-tertiary);font-family:var(--font-family);cursor:pointer;transition:all var(--transition-fast);background:0 0;border:none;border-bottom:2px solid #0000;margin-bottom:-1px;font-size:.9rem;font-weight:500}.tab-btn:hover{color:var(--text-primary)}.tab-btn.active{color:var(--accent-primary-hover);border-bottom-color:var(--accent-primary)}.results-list{gap:var(--space-4);flex-direction:column;display:flex}.question-card{transition:all var(--transition-fast)}.question-card.needs-review{border-left:3px solid var(--warning)}.q-header{cursor:pointer;-webkit-user-select:none;user-select:none;justify-content:space-between;align-items:center;display:flex}.q-header-left{align-items:center;gap:var(--space-2);display:flex}.q-number{color:var(--accent-primary-hover);font-size:1.05rem;font-weight:700}.q-header-right{align-items:center;gap:var(--space-3);display:flex}.q-score{border-radius:var(--radius-full);cursor:pointer;padding:2px 12px;font-size:1.1rem;font-weight:700}.q-score.score-high{color:var(--success);background:var(--success-bg)}.q-score.score-mid{color:var(--warning);background:var(--warning-bg)}.q-score.score-low{color:var(--error);background:var(--error-bg)}.q-expand-icon{color:var(--text-tertiary);font-size:.9rem}.inline-edit{align-items:center;gap:var(--space-2);display:flex}.marks-input{text-align:center;width:60px;padding:2px 8px;font-size:.9rem}.q-body{margin-top:var(--space-4);padding-top:var(--space-4);border-top:1px solid var(--border-primary)}.q-section{margin-bottom:var(--space-5)}.q-section h4{color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.05em;margin-bottom:var(--space-2);align-items:center;gap:var(--space-2);font-size:.85rem;display:flex}.edit-btn{text-transform:none;letter-spacing:0;font-size:.7rem}.student-answer-box,.correct-answer-box{padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);white-space:pre-wrap;font-size:.9rem;line-height:1.6}.student-answer-box{background:var(--bg-input);border:1px solid var(--border-primary)}.correct-answer-box{background:var(--success-bg);border:1px solid var(--success-border)}.partial-marks-table{border:1px solid var(--border-primary);border-radius:var(--radius-md);overflow:hidden}.pm-header,.pm-row{gap:var(--space-3);padding:var(--space-2) var(--space-3);grid-template-columns:1fr 80px 2fr;display:grid}.pm-header{background:var(--bg-glass);text-transform:uppercase;color:var(--text-tertiary);font-size:.8rem;font-weight:600}.pm-row{border-top:1px solid var(--border-primary);font-size:.85rem}.pm-marks{text-align:center;font-weight:600}.issues-grid{gap:var(--space-2);flex-direction:column;display:flex}.issue-chip{padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);font-size:.85rem;line-height:1.4}.issue-type{text-transform:uppercase;letter-spacing:.04em;margin-right:var(--space-2);font-size:.7rem;font-weight:700}.issue-missing{background:var(--warning-bg);border:1px solid var(--warning-border)}.issue-incorrect{background:var(--error-bg);border:1px solid var(--error-border)}.issue-low{background:var(--info-bg);border:1px solid #3b82f64d}.issue-medium{background:var(--warning-bg);border:1px solid var(--warning-border)}.issue-high{background:var(--error-bg);border:1px solid var(--error-border)}.feedback-edit{gap:var(--space-3);flex-direction:column;display:flex}.feedback-edit-actions{gap:var(--space-2);display:flex}.q-meta{gap:var(--space-4);padding-top:var(--space-3);border-top:1px solid var(--border-primary);display:flex}.pdf-preview{padding:0;overflow:hidden}.pdf-iframe{border-radius:var(--radius-lg);border:none;width:100%;height:80vh}.error-state{align-items:center;gap:var(--space-4);padding:var(--space-16);text-align:center;flex-direction:column;display:flex}.app-layout{min-height:100vh;display:flex}.sidebar{background:var(--bg-secondary);border-right:1px solid var(--border-primary);height:100vh;transition:width var(--transition-base);z-index:100;flex-direction:column;display:flex;position:fixed;top:0;left:0;overflow:hidden}.sidebar.open{width:var(--sidebar-width)}.sidebar.collapsed{width:64px}.sidebar-header{padding:var(--space-4);height:var(--header-height);border-bottom:1px solid var(--border-primary);justify-content:space-between;align-items:center;display:flex}.logo{align-items:center;gap:var(--space-3);display:flex}.logo-icon{flex-shrink:0}.logo-text{background:var(--accent-gradient);-webkit-text-fill-color:transparent;white-space:nowrap;-webkit-background-clip:text;background-clip:text;font-size:1.05rem;font-weight:700}.sidebar-toggle{color:var(--text-tertiary);cursor:pointer;padding:var(--space-1);border-radius:var(--radius-sm);transition:all var(--transition-fast);background:0 0;border:none;flex-shrink:0}.sidebar-toggle:hover{color:var(--text-primary);background:var(--bg-glass)}.sidebar-nav{gap:var(--space-1);padding:var(--space-4);flex-direction:column;flex:1;display:flex}.nav-link{align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-3);border-radius:var(--radius-md);color:var(--text-secondary);transition:all var(--transition-fast);white-space:nowrap;font-size:.9rem;font-weight:500;text-decoration:none;display:flex}.nav-link:hover{color:var(--text-primary);background:var(--bg-glass)}.nav-link.active{color:var(--accent-primary-hover);background:var(--accent-primary-glow)}.nav-link svg{flex-shrink:0}.sidebar-footer{padding:var(--space-4);border-top:1px solid var(--border-primary)}.sidebar-footer-text{text-align:center}.main-content{margin-left:var(--sidebar-width);padding:var(--space-8);transition:margin-left var(--transition-base);flex:1;max-width:100%;overflow-x:hidden}.sidebar.collapsed~.main-content{margin-left:64px}.page-header{margin-bottom:var(--space-8)}.page-header h1{margin-bottom:var(--space-2);font-size:1.75rem}.page-header p{color:var(--text-secondary);font-size:.95rem}.grid-3{gap:var(--space-6);grid-template-columns:repeat(auto-fill,minmax(280px,1fr));display:grid}.grid-2{gap:var(--space-6);grid-template-columns:repeat(auto-fill,minmax(400px,1fr));display:grid}@media (width<=768px){.sidebar{transform:translate(-100%)}.sidebar.open{width:var(--sidebar-width);transform:translate(0)}.main-content{padding:var(--space-4);margin-left:0!important}}