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var(--space-4)}.splash-center-area{min-width:100px;min-height:100px}.splash-bulb-icon{width:70px;height:70px}.splash-logo-img{width:100px;height:100px}.splash-typewriter-text,.splash-typewriter-cursor{font-size:1.75rem;letter-spacing:3px}.splash-review-btn{bottom:var(--space-6);left:var(--space-6);padding:var(--space-2-5) var(--space-4);font-size:var(--font-size-sm)}.splash-start-btn{bottom:var(--space-6);right:var(--space-6);padding:var(--space-2-5) var(--space-5);font-size:var(--font-size-base)}}@media(max-width:480px){.splash-content{gap:var(--space-6);padding:var(--space-4) var(--space-3)}.splash-center-area{min-width:80px;min-height:80px}.splash-bulb-icon{width:60px;height:60px}.splash-logo-img{width:80px;height:80px}.splash-typewriter-text,.splash-typewriter-cursor{font-size:1.25rem;letter-spacing:2px}.splash-review-btn{bottom:var(--space-6);left:var(--space-4);padding:var(--space-2) var(--space-3);font-size:.8125rem}.splash-start-btn{bottom:var(--space-6);right:var(--space-4);padding:var(--space-2) var(--space-4);font-size:var(--font-size-sm)}}.ai-tutor-container{position:fixed;bottom:20px;right:20px;z-index:1000;font-family:var(--font-family)}.ai-tutor-container.minimized{width:auto;height:auto}.ai-tutor-floating-button{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,#fe0,gold);border:none;color:#000!important;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px #00000026;transition:transform .2s ease,background .2s ease;position:relative}.ai-tutor-floating-button:hover{background:linear-gradient(135deg,#fff176,#fe0);transform:translateY(-2px);box-shadow:0 4px 12px #0000002e}.ai-tutor-floating-button:active{transform:translateY(0)}.ai-tutor-floating-button .ai-tutor-icon{display:flex;align-items:center;justify-content:center;width:28px;height:28px;color:#000!important}.ai-tutor-floating-button .ai-tutor-icon svg{width:100%;height:100%}.ai-tutor-typing-indicator-badge{position:absolute;top:-2px;right:-2px;width:22px;height:22px;background:var(--accent-warning);border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;font-size:11px;border:2px solid var(--bg-elevated);animation:pulse-badge 2s ease-in-out infinite}@keyframes pulse-badge{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.05);opacity:.95}}.ai-tutor-container.expanded{width:400px;max-width:calc(100vw - 40px);height:560px;max-height:calc(100vh - 100px);background:var(--bg-elevated);border:1px solid var(--border-primary);border-radius:var(--radius-xl);box-shadow:var(--shadow-2xl);display:flex;flex-direction:column;overflow:hidden;animation:expandChat .25s ease-out}@keyframes expandChat{0%{opacity:0;transform:scale(.95) translateY(16px)}to{opacity:1;transform:scale(1) translateY(0)}}.ai-tutor-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4);background:linear-gradient(135deg,#fe0,gold);color:#000!important;user-select:none;border-bottom:1px solid rgba(0,0,0,.08);flex-shrink:0}.ai-tutor-container .ai-tutor-header,.ai-tutor-container .ai-tutor-header *,.ai-tutor-container .ai-tutor-header-left,.ai-tutor-container .ai-tutor-header-left *{color:#000!important}.ai-tutor-header-left{display:flex;align-items:center;gap:var(--space-2)}.ai-tutor-icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;color:#000}.ai-tutor-icon svg{width:100%;height:100%}.ai-tutor-title{font-size:1.25rem;font-weight:800;letter-spacing:.02em;text-transform:uppercase;color:#000}.ai-tutor-typing-indicator{font-size:var(--font-size-sm);opacity:.95}.ai-tutor-toggle{background:#0000001f;border:none;color:#000!important;font-size:22px;line-height:1;cursor:pointer;width:36px;height:36px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;transition:all var(--transition-base)}.ai-tutor-toggle:hover{background:#0003;transform:scale(1.05)}.ai-tutor-chat{flex:1;overflow-y:auto;padding:var(--space-4);display:flex;flex-direction:column;gap:var(--space-3);min-height:200px;background:var(--bg-surface);-webkit-overflow-scrolling:touch}.ai-tutor-chat::-webkit-scrollbar{width:6px}.ai-tutor-chat::-webkit-scrollbar-thumb{background:var(--border-secondary);border-radius:var(--radius-full)}.ai-tutor-chat::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}.ai-tutor-message{display:flex;flex-direction:column;max-width:88%;animation:slideIn .2s ease-out}@keyframes slideIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.ai-tutor-message-user{align-self:flex-end}.ai-tutor-message-assistant{align-self:flex-start}.ai-tutor-message-content{padding:var(--space-3) var(--space-4);border-radius:var(--radius-lg);font-size:var(--font-size-sm);line-height:1.6;word-wrap:break-word}.ai-tutor-message-user .ai-tutor-message-content{background:linear-gradient(135deg,#fe0,gold);color:#000!important;border:none;border-bottom-right-radius:var(--radius-sm)}.ai-tutor-message-assistant .ai-tutor-message-content{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-primary);border-bottom-left-radius:var(--radius-sm)}.ai-tutor-typing-dots{display:flex;gap:var(--space-2);padding:var(--space-3) var(--space-4)}.ai-tutor-typing-dots span{width:8px;height:8px;background:#fe0;border-radius:var(--radius-full);animation:typingDot 1.4s infinite;opacity:.7}.ai-tutor-typing-dots span:nth-child(2){animation-delay:.2s}.ai-tutor-typing-dots span:nth-child(3){animation-delay:.4s}@keyframes typingDot{0%,60%,to{transform:translateY(0);opacity:.7}30%{transform:translateY(-6px);opacity:1}}.ai-tutor-quick-actions{display:flex;flex-wrap:nowrap;gap:var(--space-2);padding:var(--space-4);border-top:1px solid var(--border-primary);background:var(--bg-secondary);flex-shrink:0}.ai-tutor-quick-action{flex:1;min-width:0;padding:var(--space-2) var(--space-3);background:var(--bg-elevated);border:1px solid var(--border-primary);border-radius:var(--radius-md);font-size:var(--font-size-caption);font-weight:var(--font-weight-medium);cursor:pointer;transition:all var(--transition-base);color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ai-tutor-quick-action:hover{background:#ffee001f;border-color:var(--accent-ai);color:var(--text-primary)}.ai-tutor-input-form{display:flex;gap:var(--space-2);padding:var(--space-3) var(--space-4);border-top:1px solid var(--border-primary);background:var(--bg-secondary);flex-shrink:0}.ai-tutor-input{flex:1;padding:var(--space-3) var(--space-4);border:1px solid var(--border-primary);border-radius:var(--radius-lg);font-size:var(--font-size-sm);background:var(--bg-tertiary);color:var(--text-primary);outline:none;transition:all var(--transition-base)}.ai-tutor-input::placeholder{color:var(--text-tertiary)}.ai-tutor-input:focus{border-color:#fe0;box-shadow:0 0 0 2px #ffee0040}.ai-tutor-send-button{padding:var(--space-3) var(--space-4);background:linear-gradient(135deg,#fe0,gold);color:#000!important;border:none;border-radius:var(--radius-lg);font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);cursor:pointer;transition:all var(--transition-base);display:flex;align-items:center;justify-content:center;min-width:48px}.ai-tutor-send-button:hover:not(:disabled){opacity:.95;transform:scale(1.02)}.ai-tutor-send-button:disabled{opacity:.5;cursor:not-allowed}[data-theme=dark] .ai-tutor-message-assistant .ai-tutor-message-content{background:var(--bg-elevated)}[data-theme=light] .ai-tutor-message-assistant .ai-tutor-message-content{background:var(--bg-secondary)}@media(max-width:768px){.ai-tutor-container{bottom:max(16px,env(safe-area-inset-bottom));right:max(16px,env(safe-area-inset-right))}.ai-tutor-floating-button{width:56px;height:56px}.ai-tutor-container.expanded{left:16px;right:16px;width:auto;height:calc(100vh - 80px);max-height:calc(100dvh - 80px);bottom:max(16px,env(safe-area-inset-bottom));border-radius:var(--radius-xl)}.ai-tutor-header{padding:var(--space-3) var(--space-4);min-height:52px}.ai-tutor-toggle{width:44px;height:44px;min-width:44px;min-height:44px}.ai-tutor-chat{padding:var(--space-3) var(--space-4);gap:var(--space-3);min-height:160px}.ai-tutor-message{max-width:92%}.ai-tutor-message-content{padding:var(--space-3) var(--space-4);font-size:var(--font-size-base)}.ai-tutor-quick-actions{padding:var(--space-3) var(--space-4);gap:var(--space-2);flex-wrap:wrap}.ai-tutor-quick-action{flex:1 1 45%;min-width:0;padding:var(--space-2-5) var(--space-3);font-size:var(--font-size-sm);min-height:44px}.ai-tutor-input-form{padding:var(--space-3) var(--space-4)}.ai-tutor-input{font-size:16px;min-height:48px;padding:var(--space-3) var(--space-4)}.ai-tutor-send-button{min-width:48px;min-height:48px}}@media(max-width:480px){.ai-tutor-container.expanded{width:calc(100vw - 24px);left:12px;right:12px;bottom:max(12px,env(safe-area-inset-bottom));height:calc(100dvh - 72px)}.ai-tutor-quick-action{font-size:var(--font-size-xs);padding:var(--space-2) var(--space-2-5)}}@media(min-width:769px){.ai-tutor-container.expanded{width:400px;height:560px;max-height:calc(100vh - 80px)}}@media(min-width:1025px){.ai-tutor-container.expanded{width:420px;height:580px}}:root{--color-brand-primary: #FFEE00;--color-brand-hover: #E6D600;--color-brand-soft: #FFF699;--color-black: #000000;--color-near-black: #111111;--color-gray-dark: #333333;--color-gray-medium: #777777;--color-gray-light: #E6E6E6;--color-gray-extra-light: #E5E5E5;--color-white: #FFFFFF;--color-success: #2ECC71;--color-warning: #F39C12;--color-error: #E74C3C;--color-info: var(--color-brand-primary);--bg-primary: #121212;--bg-sidebar-toggle: #0D0D0D;--bg-sidebar-toggle-hover: #151515;--bg-secondary: #1E1E1E;--bg-tertiary: #2A2A2A;--bg-elevated: #2D2D2D;--bg-overlay: rgba(18, 18, 18, .9);--color-primary: var(--color-brand-primary);--color-primary-hover: var(--color-brand-hover);--color-primary-light: var(--color-brand-soft);--color-primary-dark: var(--color-brand-hover);--text-primary: #FFFFFF;--text-secondary: #E6E6E6;--text-tertiary: #B3B3B3;--text-disabled: #808080;--border-primary: #2D2D2D;--border-secondary: #404040;--border-accent: var(--color-brand-primary);--border-focus: var(--color-brand-primary);--btn-primary-bg: var(--color-brand-primary);--btn-primary-text: var(--color-black);--btn-primary-hover: var(--color-brand-hover);--btn-primary-border: var(--color-brand-primary);--btn-secondary-bg: transparent;--btn-secondary-text: var(--color-brand-primary);--btn-secondary-border: var(--color-brand-primary);--btn-secondary-hover: var(--color-primary-alpha-10);--btn-desktop-padding-y: var(--space-3);--btn-desktop-padding-x: var(--space-5);--btn-desktop-min-height: 40px;--btn-desktop-font-size: var(--font-size-sm);--btn-desktop-gap: var(--space-2);--btn-desktop-radius: var(--radius-2xl);--btn-mobile-padding-y: var(--space-3);--btn-mobile-padding-x: var(--space-4);--btn-mobile-min-height: 40px;--btn-mobile-min-width: 40px;--btn-mobile-font-size: var(--font-size-base);--btn-mobile-gap: var(--space-3);--accent-ai: var(--color-primary);--accent-neural: var(--color-primary-hover);--accent-ai-rgb: 255, 238, 0;--accent-warning: var(--color-warning);--text-inverse: var(--color-black);--bg-surface: var(--bg-primary);--shadow-xs: 0 1px 1px rgba(0, 0, 0, .2);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .5);--shadow-xl: 0 20px 25px rgba(0, 0, 0, .6);--shadow-2xl: 0 25px 50px rgba(0, 0, 0, .7);--shadow-focus: 0 0 0 3px var(--color-primary-alpha-30);--shadow-hover: var(--shadow-md);--shadow-active: var(--shadow-sm);--shadow-inset: inset 0 2px 4px rgba(0, 0, 0, .1);--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-2xl: 20px;--radius-3xl: 24px;--radius-full: 9999px;--space-1: 4px;--space-2: 8px;--space-2-5: 10px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--space-16: 64px;--color-primary-alpha-10: rgba(255, 238, 0, .1);--color-primary-alpha-15: rgba(255, 238, 0, .15);--color-primary-alpha-20: rgba(255, 238, 0, .2);--color-primary-alpha-30: rgba(255, 238, 0, .3);--space-card: var(--space-6);--space-section: var(--space-8);--space-page: var(--space-10);--space-container: var(--space-12);--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", sans-serif;--font-size-xs: 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#ffee001a;border-color:var(--border-accent);transform:translateY(-2px)}.student-dashboard-widget-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-4)}.student-dashboard-widget-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--text-primary);margin:0}.courses-page{padding:var(--space-2) var(--space-8) var(--space-8);background-color:var(--bg-primary);min-height:100%;width:100%;box-sizing:border-box}.courses-page-header{margin-bottom:var(--space-6)}.courses-header-top{display:flex;justify-content:space-between;align-items:flex-start;gap:var(--space-4);margin-bottom:var(--space-6)}.courses-page-title{font-size:var(--font-size-3xl);font-weight:var(--font-weight-semibold);color:var(--text-primary);margin:0 0 var(--space-1) 0;letter-spacing:-.02em}.courses-page-counter{font-size:var(--font-size-sm);color:var(--text-secondary);margin:0}.courses-header-actions{display:flex;align-items:center;gap:var(--space-4);flex-shrink:0}.courses-view-toggle{display:flex;background-color:var(--bg-elevated);border:1px solid var(--border-primary);border-radius:var(--radius-lg);padding:var(--space-1);gap:var(--space-1)}.view-toggle-btn{padding:var(--space-2);background:transparent;border:none;border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-base);display:flex;align-items:center;justify-content:center}.view-toggle-btn:hover{background-color:var(--bg-secondary);color:var(--text-primary)}.view-toggle-btn.active{background-color:var(--color-primary);color:#000}.courses-page-subtitle{font-size:var(--font-size-base);color:var(--text-tertiary);margin:0;opacity:.7}.courses-toolbar{display:flex;justify-content:space-between;align-items:center;gap:var(--space-4);margin-bottom:var(--space-6);flex-wrap:wrap}.courses-filters{display:flex;align-items:center;gap:var(--space-4);flex-wrap:wrap;flex:1}.courses-filter-chips{display:flex;gap:var(--space-2);flex-wrap:wrap}.filter-chip{padding:var(--space-2) var(--space-4);background-color:var(--bg-elevated);border:1px solid var(--border-primary);border-radius:var(--radius-full);color:var(--text-secondary);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);cursor:pointer;transition:all var(--transition-base);white-space:nowrap}.filter-chip:hover{background-color:var(--bg-secondary);border-color:var(--border-secondary);color:var(--text-primary)}.filter-chip.active{background-color:var(--color-primary);border-color:var(--color-primary);color:#000}.courses-search{flex:0 0 auto;min-width:250px;max-width:350px;position:relative}.courses-search-input{width:100%;padding:var(--space-3) var(--space-4) var(--space-3) var(--space-10);background-color:var(--bg-elevated);border:1px solid var(--border-primary);border-radius:var(--radius-lg);color:var(--text-primary);font-size:var(--font-size-base);transition:all var(--transition-base)}.courses-search-input:focus{outline:none;border-color:var(--border-focus);box-shadow:var(--shadow-focus)}.courses-search-icon{position:absolute;left:var(--space-3);top:50%;transform:translateY(-50%);width:20px;height:20px;opacity:.5;color:var(--text-tertiary)}.courses-filter-select{padding:var(--space-3) var(--space-4);background-color:var(--bg-elevated);border:1px solid var(--border-primary);border-radius:var(--radius-lg);color:var(--text-primary);font-size:var(--font-size-sm);cursor:pointer;transition:all var(--transition-base)}.courses-filter-select:focus{outline:none;border-color:var(--border-focus);box-shadow:var(--shadow-focus)}.courses-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:var(--space-6)}.courses-list{display:flex;flex-direction:column;gap:var(--space-4)}.course-card-list{background-color:var(--bg-elevated);border-radius:var(--radius-lg);border:1px solid var(--border-primary);box-shadow:var(--shadow-sm);transition:all var(--transition-base);cursor:pointer;display:flex;flex-direction:row;overflow:hidden}.course-card-list:hover{box-shadow:var(--shadow-md);border-color:var(--border-secondary);transform:translateY(-1px)}.course-card-list .course-card-thumbnail{flex:0 0 200px;width:200px;height:150px;overflow:hidden}.course-card-list .course-card-image{width:100%;height:100%;object-fit:cover}.course-card-list .course-card-content{flex:1;padding:var(--space-6);display:flex;flex-direction:column}.course-card{background-color:var(--bg-elevated);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-primary);box-shadow:var(--shadow-sm);transition:all var(--transition-base);cursor:pointer;display:flex;flex-direction:column}.course-card:hover{box-shadow:var(--shadow-md);border-color:var(--border-secondary);transform:translateY(-2px)}.course-card-thumbnail{width:100%;height:180px;overflow:hidden;background-color:var(--bg-secondary);position:relative}.course-card-image{width:100%;height:100%;object-fit:cover}.course-card-content{padding:var(--space-6);flex:1;display:flex;flex-direction:column}.course-card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:var(--space-3);gap:var(--space-2)}.course-card-status-badge{flex:1}.course-status-badge{display:inline-block;padding:var(--space-1) 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var(--transition-smooth)}.course-card-progress-text{font-size:var(--font-size-xs);color:var(--text-tertiary)}.course-card-status{padding:var(--space-1) var(--space-3);border-radius:var(--radius-full);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium)}.course-card-status.completed{background-color:#22c55e33;color:var(--color-success)}.course-card-status.in-progress{background-color:#fe03;color:var(--color-primary)}.course-card-status.not-started{background-color:#94a3b833;color:var(--text-tertiary)}.course-card-badge{margin-bottom:var(--space-3)}.course-card-image-placeholder{width:100%;height:180px;background:linear-gradient(135deg,var(--bg-secondary) 0%,var(--bg-elevated) 100%);display:flex;align-items:center;justify-content:center;font-size:3rem;opacity:.5}.course-card-meta{display:flex;align-items:center;gap:var(--space-3);font-size:var(--font-size-xs);color:var(--text-tertiary)}.course-meta-item{display:inline-flex;align-items:center;gap:var(--space-1)}.courses-filter-buttons{display:flex;gap:var(--space-2);flex-wrap:wrap}.courses-filter-buttons .lms-btn-secondary.active{background-color:#ffee0026;border-color:var(--color-primary);color:var(--color-primary)}.courses-sort{position:relative;flex-shrink:0}.course-card-structure{margin-top:var(--space-3)}.course-structure-label{font-size:var(--font-size-xs);color:var(--text-tertiary);margin-bottom:var(--space-2)}.course-structure-bar{width:100%;height:4px;background-color:var(--bg-secondary);border-radius:var(--radius-full);overflow:hidden}.course-structure-fill{height:100%;background-color:var(--color-primary);border-radius:var(--radius-full);transition:width var(--transition-smooth)}.course-card-skeleton{background-color:var(--bg-elevated);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-primary);display:flex;flex-direction:column}.skeleton-image{width:100%;height:180px;background:linear-gradient(90deg,var(--bg-secondary) 25%,var(--bg-elevated) 50%,var(--bg-secondary) 75%);background-size:200% 100%;animation:skeleton-loading 1.5s ease-in-out infinite}.skeleton-content{padding:var(--space-6);display:flex;flex-direction:column;gap:var(--space-3)}.skeleton-line{height:12px;background:linear-gradient(90deg,var(--bg-secondary) 25%,var(--bg-elevated) 50%,var(--bg-secondary) 75%);background-size:200% 100%;animation:skeleton-loading 1.5s ease-in-out infinite;border-radius:var(--radius-sm)}.skeleton-line.short{width:40%}.skeleton-line.medium{width:70%}@keyframes skeleton-loading{0%{background-position:200% 0}to{background-position:-200% 0}}.courses-empty{text-align:center;padding:var(--space-16) var(--space-8);color:var(--text-tertiary)}.courses-empty-icon{font-size:4rem;margin-bottom:var(--space-4);opacity:.5}.courses-empty-title{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--text-secondary);margin:0 0 var(--space-2) 0}.courses-empty-text{font-size:var(--font-size-base);color:var(--text-tertiary);margin:0}.admin-dashboard-page{padding:var(--space-8);background-color:var(--bg-primary);min-height:100vh}.admin-dashboard-header{margin-bottom:var(--space-8)}.admin-dashboard-title{font-size:var(--font-size-3xl);font-weight:var(--font-weight-semibold);color:var(--text-primary);margin:0 0 var(--space-2) 0;letter-spacing:-.02em}.admin-dashboard-subtitle{font-size:var(--font-size-base);color:var(--text-tertiary);margin:0;opacity:.7}.admin-kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--space-6);margin-bottom:var(--space-8)}.admin-kpi-card{background-color:var(--bg-elevated);border-radius:var(--radius-lg);padding:var(--space-6);border:1px solid var(--border-primary);box-shadow:var(--shadow-sm);transition:all var(--transition-base)}.admin-kpi-card:hover{box-shadow:var(--shadow-md);border-color:var(--border-secondary)}.admin-kpi-label{font-size:var(--font-size-sm);color:var(--text-tertiary);margin:0 0 var(--space-2) 0}.admin-kpi-value{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);color:var(--text-primary);margin:0 0 var(--space-2) 0}.admin-kpi-change{font-size:var(--font-size-sm);display:flex;align-items:center;gap:var(--space-1)}.admin-kpi-change.positive{color:var(--color-success)}.admin-kpi-change.negative{color:var(--color-error)}.admin-kpi-change.neutral{color:var(--text-tertiary)}.admin-system-health{background-color:var(--bg-elevated);border-radius:var(--radius-lg);padding:var(--space-6);border:1px solid var(--border-primary);box-shadow:var(--shadow-sm);margin-bottom:var(--space-8)}.admin-system-health-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-4)}.admin-system-health-title{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--text-primary);margin:0}.admin-system-health-status{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);border-radius:var(--radius-lg);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium)}.admin-system-health-status.healthy{background-color:#22c55e33;color:var(--color-success)}.admin-system-health-status.needs-attention{background-color:#f59e0b33;color:var(--color-warning)}.admin-system-health-status.critical{background-color:#ef444433;color:var(--color-error)}.admin-problematic-courses{background-color:var(--bg-elevated);border-radius:var(--radius-lg);padding:var(--space-6);border:1px solid var(--border-primary);box-shadow:var(--shadow-sm);margin-bottom:var(--space-8)}.admin-problematic-courses-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-4)}.admin-problematic-courses-title{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--text-primary);margin:0}.admin-problematic-course-item{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4);border-radius:var(--radius-lg);border:1px solid var(--border-primary);margin-bottom:var(--space-3);transition:all var(--transition-base)}.admin-problematic-course-item:hover{background-color:var(--bg-secondary);border-color:var(--border-secondary)}.admin-problematic-course-name{font-size:var(--font-size-base);font-weight:var(--font-weight-medium);color:var(--text-primary);margin:0 0 var(--space-1) 0}.admin-problematic-course-metrics{display:flex;gap:var(--space-4);font-size:var(--font-size-sm);color:var(--text-tertiary)}.admin-charts-section{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:var(--space-6);margin-bottom:var(--space-8)}.admin-chart-card{background-color:var(--bg-elevated);border-radius:var(--radius-lg);padding:var(--space-6);border:1px solid var(--border-primary);box-shadow:var(--shadow-sm)}.admin-chart-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--text-primary);margin:0 0 var(--space-4) 0}@media(max-width:1024px){.student-dashboard-hero-content,.student-dashboard-content{grid-template-columns:1fr}.student-dashboard-quick-stats{grid-template-columns:repeat(2,1fr);gap:var(--space-4)}.student-quick-stat{min-height:100px}.admin-charts-section{grid-template-columns:1fr}.courses-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}}@media(max-width:768px){.student-dashboard-page,.courses-page,.admin-dashboard-page{padding:var(--space-4)}.student-dashboard-quick-stats{grid-template-columns:1fr}.student-quick-stat{min-height:90px;flex-direction:row;align-items:center}.student-dashboard-title,.courses-page-title,.admin-dashboard-title{font-size:var(--font-size-2xl)}.student-dashboard-widgets,.admin-kpi-grid,.courses-grid{grid-template-columns:1fr}.courses-filters{flex-direction:column;align-items:stretch;gap:var(--space-3)}.courses-search{min-width:100%}.courses-filter-buttons{width:100%;justify-content:flex-start}.courses-filter-buttons .lms-btn-secondary{flex:1;min-width:calc(50% - var(--space-1))}.courses-sort,.courses-sort select{width:100%}}[data-theme=light] .student-dashboard-page{background-color:var(--bg-primary)}[data-theme=light] .student-dashboard-header{border-bottom-color:#e5e7eb}[data-theme=light] .student-dashboard-title{color:#111827}[data-theme=light] .student-dashboard-subtitle{color:#6b7280;opacity:1}[data-theme=light] .student-dashboard-welcome{color:#6b7280}[data-theme=light] .student-dashboard-global-progress{background:linear-gradient(135deg,#e8e8e8,#f3f4f6);border-color:#e5e7eb;box-shadow:0 4px 16px #0000001a}[data-theme=light] .student-dashboard-global-progress:before{background:linear-gradient(90deg,var(--color-primary) 0%,var(--color-primary-light) 100%);opacity:1}[data-theme=light] .student-global-progress-header h2{color:#111827}[data-theme=light] .student-global-progress-stat{background:#1f29370d;border-color:#e5e7eb}[data-theme=light] 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.student-course-card:hover{border-color:var(--color-primary);box-shadow:0 8px 24px #00000026}[data-theme=light] .student-course-card-title{color:#111827}[data-theme=light] .student-course-card-meta{color:#6b7280}[data-theme=light] .student-mandatory-courses-widget{background-color:#e8e8e8;border-color:#dc2626;box-shadow:0 2px 8px #dc26261a}[data-theme=light] .student-mandatory-badge{background-color:#dc2626;color:#fff}[data-theme=light] .student-widget-empty-state{color:#6b7280}[data-theme=light] .student-widget-empty-icon{color:#9ca3af;opacity:.7}[data-theme=light] .courses-page{background-color:#f9fafb}[data-theme=light] .courses-page-title{color:#111827}[data-theme=light] .courses-page-subtitle{color:#6b7280}[data-theme=light] .courses-page-card{background-color:#fff;border-color:#e5e7eb;box-shadow:0 2px 8px #0000001a}[data-theme=light] .courses-page-card:hover{border-color:var(--color-primary);box-shadow:0 8px 24px #00000026}[data-theme=light] .courses-page-card-title{color:#111827}[data-theme=light] .courses-page-card-meta{color:#6b7280}.pro-stat-card{background-color:var(--bg-elevated);border:2px solid var(--border-primary);border-radius:var(--radius-lg);padding:var(--space-6);cursor:pointer;transition:all var(--transition-base);text-align:left;width:100%;box-shadow:var(--shadow-sm)}.pro-stat-card:hover{box-shadow:var(--shadow-md);border-color:var(--border-accent);transform:translateY(-2px)}.pro-stat-card:active{transform:translateY(0)}.pro-stat-card-inner{display:flex;align-items:flex-start;gap:var(--space-4)}.pro-stat-card-icon{width:48px;height:48px;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;font-size:var(--font-size-xl);flex-shrink:0}.pro-stat-card-body{flex:1;min-width:0}.pro-stat-card-value{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--text-primary);margin:0 0 var(--space-1) 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var(--transition-base)}.course-detail-sidebar-module:hover{background-color:var(--bg-secondary);border-color:var(--border-primary);color:var(--text-primary)}.course-detail-sidebar-module.active{background-color:#ffee001f;border-color:var(--color-primary);color:var(--color-primary)}.course-detail-sidebar-module.completed{opacity:.8}.course-detail-sidebar-module.completed .course-detail-sidebar-module-indicator{background-color:#22c55e33;color:var(--color-success)}.course-detail-sidebar-module.in-progress .course-detail-sidebar-module-indicator{background-color:#fe03;color:var(--color-primary)}.course-detail-sidebar-module-indicator{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md);background-color:var(--bg-secondary);color:var(--text-secondary);font-weight:var(--font-weight-semibold);font-size:var(--font-size-sm);flex-shrink:0;transition:all var(--transition-base)}.course-detail-sidebar-module-content{flex:1;min-width:0}.course-detail-sidebar-module-title{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:inherit;margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.course-detail-hero{position:relative;min-height:500px;display:flex;align-items:flex-end;margin-bottom:var(--space-8)}.course-detail-hero-background{position:absolute;inset:0;z-index:0}.course-detail-hero-image{width:100%;height:100%;object-fit:cover}.course-detail-hero-overlay{position:absolute;inset:0;background:linear-gradient(to bottom,#0000004d,#000000b3);z-index:1}.course-detail-hero-content{position:relative;z-index:2;width:100%;padding:var(--space-8);color:#fff}.course-detail-back-btn{background:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:#fff;padding:var(--space-2) var(--space-4);border-radius:var(--radius-lg);cursor:pointer;margin-bottom:var(--space-6);transition:all var(--transition-base);font-size:var(--font-size-sm)}.course-detail-back-btn:hover{background:#fff3;border-color:#ffffff4d}.course-detail-hero-main{display:grid;grid-template-columns:1fr 300px;gap:var(--space-8);align-items:flex-start}.course-detail-hero-left{display:flex;flex-direction:column;gap:var(--space-4)}.course-detail-status-badge{margin-bottom:var(--space-2)}.course-detail-title{font-size:var(--font-size-4xl);font-weight:var(--font-weight-bold);color:#fff;margin:0;line-height:1.2}.course-detail-subtitle{font-size:var(--font-size-lg);color:#ffffffe6;margin:0;line-height:1.6}.course-detail-meta{display:flex;flex-wrap:wrap;gap:var(--space-4);margin-top:var(--space-2)}.course-detail-meta-item{display:flex;align-items:center;gap:var(--space-2);color:#ffffffe6;font-size:var(--font-size-sm)}.course-detail-meta-item 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var(--transition-base)}.course-detail-breadcrumb-link:hover{color:var(--color-primary)}.course-detail-breadcrumb-separator{color:var(--text-tertiary);font-size:var(--font-size-lg)}.course-detail-breadcrumb-current{color:var(--color-primary);font-weight:var(--font-weight-semibold)}.course-detail-lesson-content{display:flex;flex-direction:column;gap:var(--space-6)}.course-detail-completion-badge{display:flex;align-items:center;gap:var(--space-4);padding:var(--space-4) var(--space-6);background-color:#22c55e26;border:1px solid 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var(--transition-base)}.course-detail-quiz-question-card.correct{border-color:#22c55e4d;background-color:#22c55e0d}.course-detail-quiz-question-card.incorrect{border-color:#ef44444d;background-color:#ef44440d}.course-detail-quiz-question-header{display:flex;align-items:flex-start;gap:var(--space-4);margin-bottom:var(--space-4)}.course-detail-quiz-question-number-badge{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-lg);background-color:var(--bg-elevated);color:var(--text-secondary);font-weight:var(--font-weight-bold);font-size:var(--font-size-base);flex-shrink:0;transition:all var(--transition-base)}.course-detail-quiz-question-number-badge.default{background-color:var(--bg-elevated);border:1px solid var(--border-primary)}.course-detail-quiz-question-number-badge.correct{background-color:#22c55e33;color:var(--color-success);border:1px solid 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