.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:1rem}.login-card{width:100%;max-width:400px}.login-card h1{font-size:1.5rem;margin-bottom:.25rem}.login-subtitle{color:var(--color-text-muted);font-size:.875rem;margin-bottom:1.5rem}.form-group{margin-bottom:1rem}.login-btn{width:100%;margin-top:.5rem}.login-footer{text-align:center;font-size:.8125rem;color:var(--color-text-muted);margin-top:1.25rem}.dashboard-page{min-height:100vh}.dashboard-header{background:var(--color-surface);border-bottom:1px solid var(--color-border);padding:1rem 0}.dashboard-header-inner{display:flex;align-items:center;justify-content:space-between}.dashboard-header h1{font-size:1.25rem}.dashboard-user{display:flex;align-items:center;gap:1rem;font-size:.875rem}.dashboard-main{padding:2rem 1rem}.dashboard-welcome{margin-bottom:2rem}.dashboard-welcome h2{font-size:1.5rem;margin-bottom:.25rem}.dashboard-welcome p{color:var(--color-text-muted)}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}.section-header h3{font-size:1.125rem}.students-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1rem}.student-card h4{margin-bottom:.25rem}.student-grade{font-weight:600;color:var(--color-primary);font-size:.875rem}.student-meta{color:var(--color-text-muted);font-size:.8125rem;margin-top:.25rem}.student-card-clickable{cursor:pointer;transition:box-shadow .15s,transform .1s}.student-card-clickable:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.student-cta{color:var(--color-primary);font-size:.8125rem;font-weight:500;margin-top:.75rem}.add-student-form{margin-bottom:1rem}.empty-state{text-align:center;padding:3rem;color:var(--color-text-muted)}@media(max-width:768px){.form-row{flex-direction:column}}.student-detail-page{min-height:100vh;background:var(--color-bg)}.student-detail-main{padding-top:2rem;padding-bottom:3rem}.student-profile-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1.5rem;flex-wrap:wrap;gap:1rem}.student-meta-detail{color:var(--color-text-muted);font-size:.9375rem;margin-top:.25rem}.student-actions{display:flex;gap:.5rem;flex-wrap:wrap}.generation-form{margin-bottom:1.5rem}.generation-form h3{margin-bottom:1rem}.form-row{display:flex;gap:1rem;margin-bottom:1rem}.form-row .form-group{flex:1}.form-actions{display:flex;gap:.5rem;margin-top:1rem}.lesson-viewer{margin-bottom:1.5rem}.lesson-viewer-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1.25rem}.badge{background:var(--color-primary);color:#fff;padding:.25rem .75rem;border-radius:1rem;font-size:.75rem;font-weight:600;white-space:nowrap}.lesson-section{margin:1.25rem 0}.lesson-section h4{font-size:.9375rem;margin-bottom:.5rem;color:var(--color-primary-dark)}.lesson-section ul{padding-left:1.5rem}.lesson-section li{margin-bottom:.25rem;font-size:.9375rem}.lesson-block{margin:1rem 0;padding:1rem;border-radius:var(--radius);font-size:.9375rem;line-height:1.7}.block-label{display:inline-block;font-size:.6875rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;padding:.125rem .5rem;border-radius:.25rem;margin-bottom:.5rem}.lesson-block-text{background:#f0f9ff;border-left:3px solid var(--color-primary)}.lesson-block-text .block-label{background:#dbeafe;color:var(--color-primary-dark)}.lesson-block-example{background:#f0fdf4;border-left:3px solid var(--color-success)}.lesson-block-example .block-label{background:#dcfce7;color:#15803d}.lesson-block-activity{background:#fffbeb;border-left:3px solid var(--color-warning)}.lesson-block-activity .block-label{background:#fef3c7;color:#92400e}.vocab-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:.5rem}.vocab-item{background:#f8fafc;padding:.5rem .75rem;border-radius:var(--radius);font-size:.875rem}.lesson-actions{display:flex;gap:.5rem;margin-top:1.5rem;padding-top:1rem;border-top:1px solid var(--color-border)}.quiz-viewer{margin-bottom:1.5rem}.quiz-question{margin:1.25rem 0;padding-bottom:1.25rem;border-bottom:1px solid var(--color-border)}.quiz-question:last-of-type{border-bottom:none}.question-text{margin-bottom:.75rem;font-size:.9375rem}.quiz-options{display:flex;flex-direction:column;gap:.5rem}.quiz-option{display:flex;align-items:center;gap:.5rem;padding:.5rem .75rem;background:#f8fafc;border-radius:var(--radius);cursor:pointer;font-size:.9375rem;transition:background .15s}.quiz-option:hover{background:#e2e8f0}.quiz-option input[type=radio]{width:auto;margin:0}.quiz-short-answer{resize:vertical}.quiz-results{margin-bottom:1.5rem}.quiz-results-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}.score-badge{font-size:1.5rem;font-weight:700;padding:.25rem 1rem;border-radius:var(--radius)}.score-pass{background:#dcfce7;color:#15803d}.score-fail{background:#fee2e2;color:#dc2626}.score-summary{color:var(--color-text-muted);margin-bottom:1.25rem}.result-item{padding:.75rem 1rem;border-radius:var(--radius);margin-bottom:.75rem;font-size:.875rem}.result-correct{background:#f0fdf4;border-left:3px solid var(--color-success)}.result-incorrect{background:#fef2f2;border-left:3px solid var(--color-danger)}.result-indicator{font-weight:700;font-size:.75rem;text-transform:uppercase;margin-bottom:.25rem}.result-correct .result-indicator{color:var(--color-success)}.result-incorrect .result-indicator{color:var(--color-danger)}.result-explanation{color:var(--color-text-muted);margin-top:.25rem;font-style:italic}.history-section{margin-top:2rem}.history-section h3{margin-bottom:.75rem}.history-item-clickable{cursor:pointer;transition:box-shadow .15s,transform .1s}.history-item-clickable:hover{box-shadow:var(--shadow-md);transform:translateY(-1px)}.history-title{color:var(--color-text-muted);font-weight:400}.history-view-link{color:var(--color-primary);font-weight:600;font-size:.8125rem}.empty-history{color:var(--color-text-muted);font-size:.875rem}.history-list{display:flex;flex-direction:column;gap:.5rem}.history-item{display:flex;justify-content:space-between;align-items:center;padding:.75rem 1rem}.history-item-meta{display:flex;align-items:center;gap:.75rem;font-size:.8125rem;color:var(--color-text-muted)}.status-badge{font-size:.6875rem;font-weight:600;text-transform:uppercase;padding:.125rem .5rem;border-radius:.25rem}.status-generated{background:#dbeafe;color:var(--color-primary-dark)}.status-completed{background:#dcfce7;color:#15803d}.status-graded{background:#f3e8ff;color:#7c3aed}.score-badge-sm{font-size:.75rem;font-weight:700;padding:.125rem .5rem;border-radius:.25rem}.lesson-standards{display:flex;flex-wrap:wrap;align-items:center;gap:.375rem;margin-bottom:1rem}.standards-label{font-size:.75rem;font-weight:600;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.03em;margin-right:.25rem}.standard-tag{display:inline-block;background:#dbeafe;color:#1e40af;font-size:.6875rem;font-weight:600;padding:.125rem .5rem;border-radius:1rem;white-space:nowrap}.coverage-card{margin-top:.5rem}.coverage-controls{display:flex;align-items:center;gap:.75rem;margin-bottom:1rem}.coverage-controls label{margin-bottom:0;font-weight:600}.coverage-summary{display:flex;align-items:baseline;gap:.75rem;margin-bottom:.5rem}.coverage-pct{font-size:1.75rem;font-weight:700;color:var(--color-primary)}.coverage-detail{font-size:.875rem;color:var(--color-text-muted)}.coverage-bar-track{width:100%;height:10px;background:var(--color-border);border-radius:5px;margin-bottom:1.25rem;overflow:hidden}.coverage-bar-fill{height:100%;background:var(--color-primary);border-radius:5px;transition:width .4s ease;min-width:2px}.coverage-list{display:flex;flex-direction:column;gap:.375rem;max-height:400px;overflow-y:auto}.coverage-item{display:flex;align-items:flex-start;gap:.5rem;padding:.375rem .5rem;border-radius:var(--radius);font-size:.8125rem}.coverage-item.covered{background:#f0fdf4}.coverage-item.uncovered{background:#f8fafc}.coverage-icon{flex-shrink:0;font-size:.875rem}.coverage-code{font-weight:600;color:var(--color-primary);white-space:nowrap;min-width:100px}.coverage-statement{color:var(--color-text-muted);font-size:.8125rem;line-height:1.4}@media(max-width:768px){.student-profile-header,.form-row{flex-direction:column}.history-item{flex-direction:column;align-items:flex-start;gap:.5rem}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--color-primary: #2563eb;--color-primary-dark: #1d4ed8;--color-success: #16a34a;--color-warning: #d97706;--color-danger: #dc2626;--color-bg: #f8fafc;--color-surface: #ffffff;--color-text: #1e293b;--color-text-muted: #64748b;--color-border: #e2e8f0;--radius: 8px;--shadow: 0 1px 3px rgba(0, 0, 0, .1);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--color-bg);color:var(--color-text);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--color-primary);text-decoration:none}button{cursor:pointer;font-family:inherit}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.625rem 1.25rem;border:none;border-radius:var(--radius);font-size:.875rem;font-weight:600;transition:background .15s,transform .1s}.btn:active{transform:scale(.98)}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-dark)}.btn-secondary{background:var(--color-border);color:var(--color-text)}.btn-danger{background:var(--color-danger);color:#fff}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow)}.container{max-width:1200px;margin:0 auto;padding:0 1rem}input,select,textarea{font-family:inherit;font-size:.875rem;padding:.625rem .75rem;border:1px solid var(--color-border);border-radius:var(--radius);outline:none;transition:border-color .15s;width:100%}input:focus,select:focus,textarea:focus{border-color:var(--color-primary)}label{display:block;font-size:.875rem;font-weight:500;margin-bottom:.25rem;color:var(--color-text)}.error-text{color:var(--color-danger);font-size:.8125rem;margin-top:.25rem}