@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--primary:#2563eb;--on-primary:#fff;--primary-container:#dbeafe;--on-primary-container:#1e3a8a;--primary-fixed:#eff6ff;--primary-fixed-dim:#bfdbfe;--secondary:#059669;--on-secondary:#fff;--secondary-container:#d1fae5;--on-secondary-container:#064e3b;--secondary-fixed:#a7f3d0;--tertiary:#d97706;--on-tertiary:#fff;--tertiary-container:#fef3c7;--on-tertiary-container:#78350f;--tertiary-fixed:#fde68a;--error:#dc2626;--on-error:#fff;--error-container:#fee2e2;--on-error-container:#7f1d1d;--surface:#fff;--surface-dim:#f3f4f6;--surface-bright:#fff;--surface-container-lowest:#fff;--surface-container-low:#f3f4f6;--surface-container:#e5e7eb;--surface-container-high:#d1d5db;--surface-container-highest:#9ca3af;--on-surface:#111827;--on-surface-variant:#6b7280;--inverse-surface:#1f2937;--inverse-on-surface:#f9fafb;--background:#f9fafb;--on-background:#111827;--outline:#9ca3af;--outline-variant:#e5e7eb;--surface-tint:#2563eb;--font-family:"Inter", system-ui, -apple-system, sans-serif;--unit:8px;--gutter:24px;--margin-mobile:16px;--margin-desktop:40px;--section-gap:64px;--container-max-width:1280px;--radius-sm:.25rem;--radius-default:.5rem;--radius-md:.75rem;--radius-lg:1rem;--radius-xl:1.5rem;--radius-full:9999px;--shadow-sm:0 4px 6px -1px #0000000d, 0 2px 4px -1px #00000008;--shadow-card:0 4px 16px #0000000a;--shadow-modal:0 8px 32px #00000014;--shadow-btn:0 8px 32px #00000014}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);color:var(--on-background);background-color:var(--background);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;font-size:16px;font-weight:400;line-height:1.6}a{color:inherit;text-decoration:none}button{cursor:pointer;background:0 0;border:none;font-family:inherit}input,select,textarea{font-family:inherit}.display-lg{letter-spacing:-.02em;font-size:48px;font-weight:700;line-height:1.2}.headline-lg{font-size:32px;font-weight:600;line-height:1.3}.headline-md{font-size:24px;font-weight:600;line-height:1.4}.body-lg{font-size:18px;font-weight:400;line-height:1.6}.body-md{font-size:16px;font-weight:400;line-height:1.6}.label-md{letter-spacing:.05em;font-size:14px;font-weight:500;line-height:1.4}.text-primary{color:var(--primary)}.text-on-primary{color:var(--on-primary)}.text-secondary{color:var(--secondary)}.text-error{color:var(--error)}.text-on-surface{color:var(--on-surface)}.text-on-surface-variant{color:var(--on-surface-variant)}.text-outline{color:var(--outline)}.bg-primary{background-color:var(--primary)}.bg-surface{background-color:var(--surface)}.bg-surface-container-lowest{background-color:var(--surface-container-lowest)}.bg-surface-container-low{background-color:var(--surface-container-low)}.bg-surface-container{background-color:var(--surface-container)}.bg-surface-container-high{background-color:var(--surface-container-high)}.bg-error-container{background-color:var(--error-container)}.bg-secondary-container{background-color:var(--secondary-container)}.glass-card{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow-sm);border-radius:var(--radius-xl);background:#ffffffb3;border:1px solid #fff3;padding:24px;transition:transform .2s,box-shadow .2s;position:relative;overflow:hidden}.glass-card:hover{box-shadow:var(--shadow-card);transform:translateY(-2px)}.card{background-color:var(--surface-container-lowest);border:1px solid var(--outline-variant);border-radius:var(--radius-xl);box-shadow:var(--shadow-card);padding:24px}.btn{border-radius:var(--radius-default);letter-spacing:.05em;white-space:nowrap;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-size:14px;font-weight:500;transition:all .2s;display:inline-flex}.btn-primary{background-color:var(--primary);color:var(--on-primary);box-shadow:var(--shadow-btn)}.btn-primary:hover{background-color:var(--primary-container)}.btn-secondary{color:var(--on-surface);border:1px solid var(--outline-variant);background-color:#0000}.btn-secondary:hover{background-color:var(--surface-container-low)}.btn-error{color:var(--error);border:1px solid var(--error);background-color:#0000}.btn-error:hover{background-color:var(--error-container)}.btn-danger{color:#dc2626;background-color:#0000;border:1px solid #dc2626;transition:all .2s ease-in-out}.btn-danger:hover{color:#fff!important;background-color:#dc2626!important}.input{border:1px solid var(--outline);border-radius:var(--radius-sm);width:100%;height:48px;color:var(--on-surface);background-color:var(--surface-container-lowest);outline:none;padding:0 16px;font-size:16px;line-height:1.6;transition:border-color .2s,box-shadow .2s}.input:focus{border-color:var(--primary);box-shadow:0 0 0 1px var(--primary)}.input::placeholder{color:var(--outline)}.badge{border-radius:var(--radius-full);letter-spacing:.05em;align-items:center;gap:6px;padding:4px 12px;font-size:12px;font-weight:600;display:inline-flex}.badge-active{color:#15803d;background-color:#dcfce7}.badge-blocked{background-color:var(--error-container);color:var(--on-error-container)}.badge-onleave{background-color:var(--tertiary-fixed);color:var(--tertiary)}.badge-primary{background-color:var(--primary);color:var(--on-primary);border-radius:var(--radius-default);padding:6px 16px;font-size:13px}.badge-progress-good{color:#006c49;border-radius:var(--radius-full);background:#c3e9c8;border:none;padding:4px 10px;font-size:13px;font-weight:600}.badge-progress-warning{background-color:var(--tertiary-fixed);color:var(--tertiary);border-radius:var(--radius-full);padding:4px 10px;font-size:13px;font-weight:600}.data-table{border-collapse:collapse;text-align:left;width:100%}.data-table th{letter-spacing:.05em;color:var(--on-surface-variant);text-transform:uppercase;border-bottom:1px solid var(--outline-variant);padding:16px;font-size:14px;font-weight:500}.data-table 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#f1f5f9;flex-direction:column;width:260px;height:100vh;padding:20px 0;transition:transform .3s cubic-bezier(.4,0,.2,1);display:flex;position:fixed;top:0;left:0;box-shadow:1px 0 4px #00000005}.sidebar-brand{align-items:center;gap:12px;margin-bottom:24px;padding:0 20px;display:flex}.sidebar-brand-icon{color:#fff;background:linear-gradient(135deg,#2563eb 0%,#4f46e5 100%);border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:38px;height:38px;display:flex;box-shadow:0 4px 10px #2563eb40}.sidebar-brand-info{flex-direction:column;gap:2px;display:flex}.sidebar-brand-name{letter-spacing:-.02em;color:#0f172a;font-size:16px;font-weight:700;line-height:1.2}.sidebar-brand-sub{color:#64748b;text-transform:uppercase;letter-spacing:.05em;background-color:#f1f5f9;border-radius:9999px;align-self:flex-start;padding:2px 7px;font-size:10.5px;font-weight:600;display:inline-block}.sidebar-nav{flex-direction:column;flex:1;gap:2px;padding:0 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#6366f133}.topbar-user-details{text-align:left;flex-direction:column;display:flex}.topbar-user-name{color:#0f172a;font-size:13px;font-weight:600;line-height:1.2}.topbar-user-role{color:#64748b;text-transform:capitalize;font-size:11px;line-height:1.2}.layout-wrapper{min-height:100vh;display:flex}.layout-main{flex-direction:column;flex:1;min-height:100vh;margin-left:260px;display:flex}.page-content{padding:var(--margin-mobile);max-width:var(--container-max-width);flex:1;width:100%;margin:0 auto}.page-header{margin-bottom:var(--section-gap)}.page-title{color:var(--on-surface);margin-bottom:8px;font-size:32px;font-weight:600;line-height:1.3}.breadcrumb{color:var(--on-surface-variant);align-items:center;gap:8px;margin-bottom:4px;font-size:14px;display:flex}.breadcrumb-active{color:var(--on-surface);font-weight:600}.mobile-menu-btn{color:var(--on-surface);padding:8px 12px;font-size:14px;font-weight:600;display:none}@media (width<=768px){.sidebar{transform:translate(-100%)}.sidebar.open{transform:translate(0)}.layout-main{margin-left:0}.mobile-menu-btn{display:block}.topbar{padding:0 var(--margin-mobile)}.topbar-search,.topbar-user-info{display:none}.page-content{padding:var(--margin-mobile)}.page-title{font-size:24px}}@media (width>=769px){.page-content{padding:var(--margin-desktop)}}.metric-card{background-color:var(--surface);border-radius:var(--radius-xl);border:1px solid var(--outline-variant);box-shadow:var(--shadow-sm);padding:16px}.metric-card-header{color:var(--on-surface-variant);justify-content:space-between;align-items:center;margin-bottom:8px;font-size:12px;font-weight:500;display:flex}.metric-card-icon{border-radius:var(--radius-default);padding:8px}.metric-card-value{align-items:baseline;gap:8px;display:flex}.metric-card-number{letter-spacing:-.025em;color:var(--on-surface);font-size:30px;font-weight:700}.metric-card-suffix{color:var(--on-surface-variant);font-size:14px;font-weight:500}.status-badge{border-radius:var(--radius-full);align-items:center;gap:6px;padding:4px 10px;font-size:12px;font-weight:600;display:inline-flex}.status-badge-dot{border-radius:50%;width:6px;height:6px}.status-badge.success{background-color:var(--secondary-container);color:var(--on-secondary-container);border:1px solid var(--secondary-fixed)}.status-badge.success 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#fde68a;gap:12px;padding:16px;display:flex}.teacher-avatar{color:#fff;background-color:#d97706;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:34px;height:34px;font-size:12px;font-weight:700;display:flex}.teacher-note-content{flex:1;font-size:12px}.teacher-note-header{justify-content:space-between;align-items:center;margin-bottom:6px;display:flex}.teacher-note-name{color:#78350f;font-weight:700}.teacher-note-time{color:#92400e;font-size:11px}.teacher-note-body{color:#78350f;margin:0;line-height:1.6}.speaking-notes-box{flex-direction:column;gap:8px;display:flex}.speaking-notes-label{color:var(--on-surface);font-size:12px;font-weight:600}.speaking-notes-textarea{width:100%;color:var(--on-surface);border:1px solid var(--outline-variant);border-radius:var(--radius-md,8px);resize:vertical;background-color:var(--surface);box-sizing:border-box;padding:12px;font-family:inherit;font-size:13px;transition:border-color .2s}.speaking-notes-textarea:focus{border-color:var(--primary);box-shadow:0 0 0 2px var(--primary-container);outline:none}.speaking-notes-footer{color:var(--on-surface-variant);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;font-size:11px;display:flex}.speaking-btn-link{color:var(--primary);cursor:pointer;background:0 0;border:none;padding:0;font-size:12px;font-weight:600}.speaking-btn-link:hover{text-decoration:underline}.submission-file-box{border:2px dashed var(--outline-variant);border-radius:var(--radius-md,8px);background-color:var(--surface-container-low);align-items:flex-start;gap:12px;padding:14px;display:flex;position:relative}.submission-file-icon{color:#dc2626;background-color:#fee2e2;border:1px solid #fca5a5;border-radius:6px;flex-direction:column;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:52px;font-size:9px;font-weight:800;display:flex}.submission-file-details{flex:1;min-width:0}.submission-file-name{color:var(--on-surface);white-space:nowrap;text-overflow:ellipsis;margin:0 0 2px;font-size:13px;font-weight:700;overflow:hidden}.submission-file-meta{color:var(--on-surface-variant);margin:0 0 6px;font-size:11px}.submission-file-actions{align-items:center;gap:8px;display:flex}.submission-file-size{color:var(--primary);background-color:#eff6ff;border-radius:4px;padding:2px 6px;font-size:10px;font-weight:600}.submission-remove-btn{color:var(--on-surface-variant);cursor:pointer;background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;padding:4px;display:flex;position:absolute;top:10px;right:10px}.submission-remove-btn:hover{color:var(--error);background-color:var(--error-container)}.audio-attachment-box{border:1px solid var(--outline-variant);border-radius:var(--radius-md,8px);background-color:var(--surface-container-low);align-items:center;gap:12px;padding:12px;display:flex}.audio-attachment-icon{background-color:var(--primary-container);width:36px;height:36px;color:var(--primary);border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.btn-submit-speaking{border-radius:var(--radius-md,8px);background-color:var(--primary);width:100%;color:var(--on-primary);cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;padding:12px 18px;font-size:14px;font-weight:600;transition:all .2s;display:flex;box-shadow:0 4px 12px #2563eb40}.btn-submit-speaking:hover{background-color:#1d4ed8;transform:translateY(-1px);box-shadow:0 6px 16px #2563eb59}.speaking-submit-note{text-align:center;color:var(--on-surface-variant);margin-top:4px;font-size:11px}.grading-row{border-bottom:1px solid var(--outline-variant);justify-content:space-between;align-items:center;padding:12px 0;font-size:13px;display:flex}.grading-row:last-child{border-bottom:none}.grading-label{color:var(--on-surface-variant);font-weight:500}.grading-val-total{color:var(--on-surface);font-size:16px;font-weight:700}.grading-current-grade{justify-content:space-between;align-items:center;padding:14px 0;display:flex}.grading-score-display{color:var(--primary);font-size:22px;font-weight:800}.evaluator-profile-box{background-color:var(--surface-container-low);border-radius:var(--radius-md,8px);align-items:center;gap:12px;margin-top:10px;padding:12px;display:flex}.evaluator-avatar{background-color:var(--on-surface);width:36px;height:36px;color:var(--surface);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:12px;font-weight:700;display:flex}.evaluator-role{text-transform:uppercase;color:var(--on-surface-variant);letter-spacing:.05em;font-size:10px;font-weight:700}.evaluator-name{color:var(--on-surface);font-size:13px;font-weight:700}.std-eco-container{max-width:1400px;margin:0 auto;padding:0 24px 40px}.std-eco-header{flex-direction:column;gap:16px;margin-bottom:24px;padding-top:16px;display:flex}@media (width>=768px){.std-eco-header{flex-direction:row;justify-content:space-between;align-items:center}}.std-eco-title{color:var(--on-surface);letter-spacing:-.02em;align-items:center;gap:10px;margin:0 0 6px;font-size:26px;font-weight:800;display:flex}.std-eco-subtitle{color:var(--on-surface-variant);margin:0;font-size:14px;line-height:1.5}.std-eco-hero{color:#fff;border-radius:var(--radius-lg,16px);background:linear-gradient(135deg,#0f172a 0%,#1e293b 50%,#2563eb 100%);margin-bottom:28px;padding:28px 32px;position:relative;overflow:hidden;box-shadow:0 8px 24px -4px #0f172a26}.std-eco-hero-content{z-index:2;flex-direction:column;gap:20px;display:flex;position:relative}@media (width>=880px){.std-eco-hero-content{flex-direction:row;justify-content:space-between;align-items:center}}.std-eco-stats-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:28px;display:grid}.std-eco-stat-card{background-color:var(--surface);border:1px solid var(--outline-variant);border-radius:var(--radius-lg,14px);align-items:center;gap:16px;padding:18px 20px;transition:all .25s;display:flex;box-shadow:0 1px 3px #0000000a}.std-eco-stat-card:hover{border-color:var(--primary-fixed-dim,#bfdbfe);transform:translateY(-2px);box-shadow:0 8px 20px -4px #00000014}.std-eco-stat-icon{border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:46px;height:46px;display:flex}.std-eco-stat-num{color:var(--on-surface);font-size:22px;font-weight:800;line-height:1.2}.std-eco-stat-label{color:var(--on-surface-variant);margin-top:2px;font-size:12.5px}.std-eco-filter-bar{background-color:var(--surface);border:1px solid var(--outline-variant);border-radius:var(--radius-lg,12px);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;margin-bottom:22px;padding:12px 18px;display:flex}.std-eco-pills{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.std-eco-pill{border:1px solid var(--outline-variant);background-color:var(--surface);color:var(--on-surface-variant);cursor:pointer;border-radius:20px;align-items:center;gap:6px;padding:7px 14px;font-size:13px;font-weight:600;transition:all .2s;display:inline-flex}.std-eco-pill:hover{background-color:var(--surface-container-low);color:var(--on-surface)}.std-eco-pill.active{background-color:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 4px 12px -2px #2563eb59}.std-eco-pill-badge{background-color:#00000014;border-radius:10px;padding:1px 6px;font-size:11px}.std-eco-pill.active .std-eco-pill-badge{color:#fff;background-color:#ffffff40}.std-eco-search-wrap{align-items:center;min-width:240px;display:flex;position:relative}.std-eco-search-icon{color:var(--on-surface-variant);pointer-events:none;position:absolute;left:12px}.std-eco-search-input{border-radius:var(--radius-md,8px);border:1px solid var(--outline-variant);background-color:var(--surface-container-lowest,#fff);width:100%;color:var(--on-surface);outline:none;padding:8px 12px 8px 36px;font-size:13px;transition:border-color .2s}.std-eco-search-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1f}.std-eco-tabs{border-bottom:2px solid var(--outline-variant);scrollbar-width:none;align-items:center;gap:8px;margin-bottom:24px;display:flex;overflow-x:auto}.std-eco-tab-btn{color:var(--on-surface-variant);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-bottom:2px solid #0000;align-items:center;gap:8px;margin-bottom:-2px;padding:12px 20px;font-size:14px;font-weight:600;transition:all .2s;display:inline-flex}.std-eco-tab-btn:hover{color:var(--on-surface)}.std-eco-tab-btn.active{color:var(--primary);border-bottom:2px solid var(--primary)}.std-eco-card{background-color:var(--surface);border:1px solid var(--outline-variant);border-radius:var(--radius-lg,14px);margin-bottom:24px;overflow:hidden;box-shadow:0 1px 3px #0000000a}.std-eco-card-header{border-bottom:1px solid var(--outline-variant);background-color:var(--surface-container-low);justify-content:space-between;align-items:center;padding:16px 22px;display:flex}.std-eco-card-title{color:var(--on-surface);align-items:center;gap:8px;margin:0;font-size:15px;font-weight:700;display:flex}.std-eco-card-body{padding:22px}.std-eco-btn-primary{background-color:var(--primary);color:#fff;border-radius:var(--radius-md,8px);cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;padding:9px 18px;font-size:13.5px;font-weight:600;text-decoration:none;transition:all .2s;display:inline-flex}.std-eco-btn-primary:hover{background-color:#1d4ed8;transform:translateY(-1px);box-shadow:0 4px 12px #2563eb40}.std-eco-btn-secondary{background-color:var(--surface);color:var(--on-surface);border:1px solid var(--outline-variant);border-radius:var(--radius-md,8px);cursor:pointer;justify-content:center;align-items:center;gap:8px;padding:8px 16px;font-size:13px;font-weight:600;text-decoration:none;transition:all .2s;display:inline-flex}.std-eco-btn-secondary:hover{background-color:var(--surface-container-low);border-color:var(--outline)}.std-skill-tag{text-transform:uppercase;letter-spacing:.02em;border-radius:6px;align-items:center;gap:6px;padding:4px 10px;font-size:12px;font-weight:700;display:inline-flex}.std-skill-tag.writing{color:#2563eb;background-color:#eff6ff;border:1px solid #bfdbfe}.std-skill-tag.speaking{color:#9333ea;background-color:#faf5ff;border:1px solid #e9d5ff}.std-skill-tag.reading{color:#d97706;background-color:#fffbeb;border:1px solid #fde68a}.std-skill-tag.listening{color:#0d9488;background-color:#f0fdfa;border:1px solid #99f6e4}.std-skill-tag.mock{color:#db2777;background-color:#fdf2f8;border:1px solid #fbcfe8}.grades-table-responsive{border-radius:var(--radius-md,8px);border:1px solid var(--outline-variant);background-color:var(--surface);width:100%;overflow-x:auto}.grades-table{border-collapse:collapse;text-align:left;width:100%;min-width:800px;font-size:13.5px}.grades-table th{background-color:var(--surface-container-low);color:var(--on-surface-variant);border-bottom:1px solid var(--outline-variant);text-transform:uppercase;letter-spacing:.04em;padding:14px 18px;font-size:12px;font-weight:700}.grades-table td{border-bottom:1px solid var(--outline-variant);color:var(--on-surface);vertical-align:middle;padding:16px 18px}.grades-table tr:last-child td{border-bottom:none}.grades-table tr:hover td{background-color:#f8faff}.grade-score-pill{border-radius:20px;align-items:center;gap:6px;padding:4px 12px;font-size:13px;font-weight:800;display:inline-flex}.grade-score-pill.high{color:#059669;background-color:#ecfdf5;border:1px solid #a7f3d0}.grade-score-pill.pending{color:#d97706;background-color:#fffbeb;border:1px solid #fde68a}.workspace-draft-card{border:1px solid var(--outline-variant);border-radius:var(--radius-lg,12px);background-color:var(--surface);flex-direction:column;justify-content:space-between;gap:16px;padding:20px;transition:all .25s;display:flex}.workspace-draft-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 10px 24px -4px #2563eb1f}.workspace-progress-bar{background-color:var(--surface-container-high,#e2e8f0);border-radius:4px;height:7px;position:relative;overflow:hidden}.workspace-progress-fill{background:linear-gradient(90deg,#2563eb,#3b82f6);border-radius:4px;height:100%;transition:width .4s}.note-card{border:1px solid var(--outline-variant);border-radius:var(--radius-lg,12px);background-color:var(--surface);flex-direction:column;justify-content:space-between;gap:12px;padding:18px 20px;transition:all .2s;display:flex}.note-card:hover{border-color:var(--primary);box-shadow:0 6px 18px -2px #0000000f}.resource-card{border:1px solid var(--outline-variant);border-radius:var(--radius-lg,12px);background-color:var(--surface);justify-content:space-between;align-items:center;gap:16px;padding:20px;transition:all .2s;display:flex}.resource-card:hover{border-color:var(--primary);box-shadow:0 6px 18px -2px #0000000f}.feedback-card{border:1px solid var(--outline-variant);border-radius:var(--radius-lg,14px);background-color:var(--surface);flex-direction:column;gap:16px;margin-bottom:20px;padding:22px 24px;transition:all .25s;display:flex;box-shadow:0 1px 3px #00000008}.feedback-card:hover{border-color:var(--primary-fixed-dim,#bfdbfe);box-shadow:0 8px 24px -4px #2563eb1a}.feedback-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.feedback-reviewer-avatar{color:#fff;border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;font-size:14px;font-weight:800;display:flex}.feedback-reviewer-avatar.teacher{background:linear-gradient(135deg,#2563eb 0%,#1d4ed8 100%)}.feedback-reviewer-avatar.ai{background:linear-gradient(135deg,#059669 0%,#047857 100%)}.feedback-quote-box{background-color:var(--surface-container-low);border-left:4px solid var(--primary);border-radius:0 var(--radius-md,8px) var(--radius-md,8px) 0;color:var(--on-surface);padding:16px 20px;font-size:14px;line-height:1.6}.feedback-strengths-box{border-radius:var(--radius-md,8px);background-color:#f0fdf4;border:1px solid #bbf7d0;padding:14px 18px}.feedback-weakness-box{border-radius:var(--radius-md,8px);background-color:#fffbeb;border:1px solid #fde68a;padding:14px 18px}.analytics-skill-block{border:1px solid var(--outline-variant);border-radius:var(--radius-lg,12px);background-color:var(--surface);margin-bottom:16px;padding:20px;transition:all .2s}.analytics-skill-block:hover{border-color:var(--primary);box-shadow:0 6px 18px -2px #0000000f}.analytics-radar-bar{background-color:var(--surface-container-high,#e2e8f0);border-radius:6px;height:10px;position:relative;overflow:hidden}.analytics-diagnostic-card{border-radius:var(--radius-md,8px);align-items:flex-start;gap:12px;margin-bottom:12px;padding:14px 18px;font-size:13.5px;line-height:1.5;display:flex}.analytics-diagnostic-card.weakness{color:#991b1b;background-color:#fef2f2;border:1px solid #fecaca}.analytics-diagnostic-card.strength{color:#166534;background-color:#f0fdf4;border:1px solid #bbf7d0}.analytics-diagnostic-card.recommendation{color:#1e40af;background-color:#eff6ff;border:1px solid #bfdbfe}.teacher-container{max-width:1400px;margin:0 auto;padding:0 24px 40px}.teacher-header{flex-direction:column;gap:16px;margin-bottom:24px;padding-top:16px;display:flex}@media (width>=768px){.teacher-header{flex-direction:row;justify-content:space-between;align-items:center}}.teacher-title{color:var(--on-surface);letter-spacing:-.02em;align-items:center;gap:10px;margin:0 0 6px;font-size:26px;font-weight:800;display:flex}.teacher-subtitle{color:var(--on-surface-variant);margin:0;font-size:14px;line-height:1.5}.teacher-stats-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:28px;display:grid}.teacher-stat-card{background-color:var(--surface);border:1px solid var(--outline-variant);border-radius:var(--radius-lg,14px);cursor:pointer;align-items:center;gap:16px;padding:18px 20px;transition:all .25s;display:flex;box-shadow:0 1px 3px #0000000a}.teacher-stat-card:hover{border-color:var(--primary-fixed-dim,#bfdbfe);transform:translateY(-2px);box-shadow:0 8px 20px -4px #00000014}.teacher-stat-card.active{border-color:var(--primary);box-shadow:0 8px 20px -4px #2563eb2e}.teacher-stat-icon{border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:46px;height:46px;display:flex}.teacher-stat-num{color:var(--on-surface);font-size:22px;font-weight:800;line-height:1.2}.teacher-stat-label{color:var(--on-surface-variant);margin-top:2px;font-size:12.5px}.teacher-filter-bar{background-color:var(--surface);border:1px solid var(--outline-variant);border-radius:var(--radius-lg,12px);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;margin-bottom:24px;padding:12px 18px;display:flex}.teacher-pills{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.teacher-pill{border:1px solid var(--outline-variant);background-color:var(--surface);color:var(--on-surface-variant);cursor:pointer;border-radius:20px;align-items:center;gap:6px;padding:7px 14px;font-size:13px;font-weight:600;transition:all .2s;display:inline-flex}.teacher-pill:hover{background-color:var(--surface-container-low);color:var(--on-surface)}.teacher-pill.active{background-color:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 4px 12px -2px #2563eb59}.teacher-pill-badge{background-color:#00000014;border-radius:10px;padding:1px 6px;font-size:11px}.teacher-pill.active .teacher-pill-badge{color:#fff;background-color:#ffffff40}.teacher-search-wrap{align-items:center;min-width:240px;display:flex;position:relative}.teacher-search-icon{color:var(--on-surface-variant);pointer-events:none;position:absolute;left:12px}.teacher-search-input{border-radius:var(--radius-md,8px);border:1px solid var(--outline-variant);background-color:var(--surface-container-lowest,#fff);width:100%;color:var(--on-surface);outline:none;padding:8px 12px 8px 36px;font-size:13px;transition:border-color .2s}.teacher-search-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1f}.teacher-classes-grid{grid-template-columns:repeat(auto-fill,minmax(380px,1fr));gap:22px;display:grid}.teacher-class-card{background-color:var(--surface);border:1px solid var(--outline-variant);border-radius:var(--radius-lg,14px);flex-direction:column;justify-content:space-between;gap:16px;padding:22px;transition:all .25s;display:flex;box-shadow:0 1px 3px #0000000a}.teacher-class-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 10px 24px -4px #2563eb1f}.teacher-class-header{justify-content:space-between;align-items:center;margin-bottom:10px;display:flex}.teacher-class-title{color:var(--on-surface);margin:0 0 8px;font-size:16.5px;font-weight:700;line-height:1.35}.teacher-class-meta{color:var(--on-surface-variant);flex-direction:column;gap:6px;margin-bottom:14px;font-size:13px;display:flex}.teacher-class-meta-item{align-items:center;gap:8px;display:flex}.teacher-mini-kpi-grid{background-color:var(--surface-container-low);border:1px solid var(--outline-variant);border-radius:var(--radius-md,10px);text-align:center;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-bottom:16px;padding:12px 14px;display:grid}.teacher-mini-kpi-item{flex-direction:column;gap:2px;display:flex}.teacher-mini-kpi-item:not(:last-child){border-right:1px solid var(--outline-variant)}.teacher-mini-kpi-label{text-transform:uppercase;color:var(--on-surface-variant);letter-spacing:.03em;font-size:11px;font-weight:600}.teacher-mini-kpi-val{color:var(--on-surface);font-size:16px;font-weight:800}.teacher-assignments-list{flex-direction:column;gap:14px;display:flex}.teacher-assignment-card{background-color:var(--surface);border:1px solid var(--outline-variant);border-radius:var(--radius-lg,12px);flex-direction:column;gap:14px;padding:20px 22px;transition:all .25s;display:flex;box-shadow:0 1px 3px #00000008}@media 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