:root{--base-size: 14px;--font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--color-primary: #007aff;--color-primary-light: #f0f7ff;--color-primary-dark: #0051d5;--color-secondary: #7e22ce;--color-secondary-light: #f3e8ff;--color-secondary-dark: #6b21a8;--color-success: #34c759;--color-success-light: #f0fdf4;--color-warning: #ff9500;--color-warning-light: #fff8e1;--color-error: #ff3b30;--color-error-light: #fef2f2;--color-gray-50: #fafafa;--color-gray-100: #f5f5f5;--color-gray-200: #e5e5e5;--color-gray-300: #d4d4d4;--color-gray-400: #a3a3a3;--color-gray-500: #737373;--color-gray-600: #525252;--color-gray-700: #404040;--color-gray-800: #262626;--color-gray-900: #171717;--color-gray-hc-100: #ffffff;--color-gray-hc-900: #000000;--color-accent: #ff6b00;--color-accent-gradient: linear-gradient(90deg, #ff6b00 0%, #ffb347 100%);--color-tutor-grace: #7c3aed;--color-tutor-grace-light: #f3e8ff;--color-tutor-grace-dark: #6b21a8;--color-tutor-fin: #2563eb;--color-tutor-fin-light: #eff6ff;--color-tutor-fin-dark: #1d4ed8;--color-tutor-sophie: #059669;--color-tutor-sophie-light: #f0fdf4;--color-tutor-sophie-dark: #047857;--accent-primary: var(--color-primary);--accent-primary-alpha: rgba(29, 78, 216, .1);--text-primary: var(--color-gray-900);--text-secondary: var(--color-gray-600);--bg-primary: var(--color-gray-50);--bg-secondary: var(--color-gray-100);--bg-tertiary: var(--color-gray-200);--border-color: var(--color-gray-200);--space-0: 0;--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;--space-20: 5rem;--space-24: 6rem;--space-7: 1.75rem;--space-fluid: clamp( 1rem, 2vw, 2rem );--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--font-size-4xl: 2.25rem;--font-size-5xl: 3rem;--font-size-6xl: 3.75rem;--font-size-xxs: .6875rem;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-none: 1;--line-height-tight: 1.25;--line-height-snug: 1.375;--line-height-normal: 1.5;--line-height-relaxed: 1.625;--line-height-loose: 2;--radius-none: 0;--radius-sm: .125rem;--radius-md: .375rem;--radius-lg: .5rem;--radius-xl: .75rem;--radius-2xl: 1rem;--radius-3xl: 1.5rem;--radius-full: 9999px;--radius-bubble: 1.25rem;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .03);--shadow: 0 1px 3px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .05), 0 2px 4px -2px rgb(0 0 0 / .03);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .05), 0 4px 6px -4px rgb(0 0 0 / .03);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .05), 0 8px 10px -6px rgb(0 0 0 / .03);--shadow-accent: 0 2px 8px 0 rgba(124, 58, 237, .15);--transition-fast: .15s;--transition-normal: .2s;--transition-slow: .3s;--transition-ease: cubic-bezier(.4, 0, .2, 1);--container-sm: 640px;--container-md: 768px;--container-lg: 1024px;--container-xl: 1280px;--container-2xl: 1536px;--container-stepper: 900px;--z-0: 0;--z-10: 10;--z-20: 20;--z-30: 30;--z-40: 40;--z-50: 50;--z-auto: auto;--chat-max-width: 480px}*{box-sizing:border-box;margin:0;padding:0}html,body,#svelte,main{height:100%;min-height:0;margin:0;padding:0;box-sizing:border-box}#svelte{width:100%;display:flex;flex-direction:column}main{flex:1;width:100%;overflow-y:auto;position:relative}html{font-size:var(--base-size);font-family:var(--font-sans)}body{font-family:inherit;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:var(--line-height-normal);color:var(--color-gray-900);background-color:var(--color-gray-50)}h1,h2,h3,h4,h5,h6,p,span,div,button,input,select,textarea{font-family:inherit}code,pre{font-family:var(--font-mono)}h1{font-size:var(--font-size-4xl)}h2{font-size:var(--font-size-3xl)}h3{font-size:var(--font-size-2xl)}h4{font-size:var(--font-size-xl)}h5{font-size:var(--font-size-lg)}h6{font-size:var(--font-size-base)}h1,h2,h3,h4,h5,h6{font-weight:var(--font-weight-semibold);line-height:var(--line-height-tight);color:var(--color-gray-900);margin-bottom:var(--space-4)}p{margin-bottom:var(--space-4)}.container{width:100%;margin-left:auto;margin-right:auto;padding-left:var(--space-4);padding-right:var(--space-4)}@media(min-width:640px){.container{max-width:var(--container-sm);padding-left:var(--space-6);padding-right:var(--space-6)}}@media(min-width:768px){.container{max-width:var(--container-md)}}@media(min-width:1024px){.container{max-width:var(--container-lg);padding-left:var(--space-8);padding-right:var(--space-8)}}@media(min-width:1280px){.container{max-width:var(--container-xl)}}@media(min-width:1536px){.container{max-width:var(--container-2xl)}}:root{--breakpoint-sm: 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var(--breakpoint-md)){.loading-container{padding:var(--space-6)}.skeleton-grid{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}}.sr-loading{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}@media(prefers-reduced-motion:reduce){.spinner{animation:none}.skeleton{animation:none;background:var(--color-gray-200)}}.loading-center{display:flex;align-items:center;justify-content:center;min-height:200px}.loading-center-sm{min-height:100px}.loading-center-lg{min-height:400px}.loading-text{color:var(--color-gray-600);font-size:var(--font-size-sm);margin:0}.loading-text-lg{font-size:var(--font-size-base)}.loading-with-icon{display:flex;align-items:center;gap:var(--space-2)}.loading-with-icon .icon{font-size:var(--font-size-lg);opacity:.6}.loading-pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}@keyframes 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var(--color-gray-200)}.error-state-sm{padding:var(--space-4)}.error-state-lg{padding:var(--space-12)}.error-state-primary{border-color:var(--color-primary-200);background:var(--color-primary-50)}.error-state-warning{border-color:var(--color-warning-200);background:var(--color-warning-50)}.error-state-critical{border-color:var(--color-error-200);background:var(--color-error-50)}.error-state-info{border-color:var(--color-info-200);background:var(--color-info-50)}.error-icon{font-size:3rem;margin-bottom:var(--space-4);opacity:.7}.error-icon-sm{font-size:2rem;margin-bottom:var(--space-3)}.error-icon-lg{font-size:4rem;margin-bottom:var(--space-6)}.error-icon-primary{color:var(--color-primary-500)}.error-icon-warning{color:var(--color-warning-500)}.error-icon-critical{color:var(--color-error-500)}.error-icon-info{color:var(--color-info-500)}.error-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);margin-bottom:var(--space-2);color:var(--color-gray-800)}.error-title-sm{font-size:var(--font-size-base);margin-bottom:var(--space-1)}.error-title-lg{font-size:var(--font-size-xl);margin-bottom:var(--space-3)}.error-message{font-size:var(--font-size-base);line-height:var(--line-height-relaxed);max-width:400px;margin-bottom:var(--space-4);color:var(--color-gray-600)}.error-message-sm{font-size:var(--font-size-sm);margin-bottom:var(--space-3)}.error-message-lg{font-size:var(--font-size-lg);margin-bottom:var(--space-6)}.error-details{font-size:var(--font-size-sm);color:var(--color-gray-500);margin-bottom:var(--space-4);padding:var(--space-3);background:var(--color-gray-50);border-radius:var(--radius-md);border:1px solid var(--color-gray-200);text-align:left;max-width:500px;font-family:var(--font-mono)}.error-details pre{margin:0;white-space:pre-wrap;word-break:break-word}.retry-button{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-4);background:var(--color-primary-500);color:#fff;border:none;border-radius:var(--radius-md);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);cursor:pointer;transition:all var(--transition-normal) ease;text-decoration:none;min-height:48px}.retry-button:hover{background:var(--color-primary-600);transform:translateY(-1px);box-shadow:var(--shadow-md)}.retry-button:focus{outline:2px solid var(--color-primary-300);outline-offset:2px}.retry-button:active{transform:translateY(0)}.retry-button-sm{padding:var(--space-2) var(--space-3);font-size:var(--font-size-xs);min-height:40px}.retry-button-lg{padding:var(--space-4) var(--space-6);font-size:var(--font-size-base);min-height:56px}.retry-button-secondary{background:var(--color-secondary-500)}.retry-button-secondary:hover{background:var(--color-secondary-600)}.retry-button-outline{background:transparent;border:2px solid var(--color-primary-500);color:var(--color-primary-500)}.retry-button-outline:hover{background:var(--color-primary-500);color:#fff}.retry-button-ghost{background:transparent;color:var(--color-primary-500);border:1px solid var(--color-gray-300)}.retry-button-ghost:hover{background:var(--color-primary-50);border-color:var(--color-primary-300)}.retry-button.loading{cursor:wait;opacity:.7}.retry-button.loading .spinner{width:1em;height:1em;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .75s linear infinite}.error-alert{display:flex;align-items:flex-start;gap:var(--space-3);padding:var(--space-4);background:var(--color-error-50);border:1px solid var(--color-error-200);border-radius:var(--radius-md);color:var(--color-error-800);margin-bottom:var(--space-4)}.error-alert-sm{padding:var(--space-3);gap:var(--space-2)}.error-alert-lg{padding:var(--space-6);gap:var(--space-4)}.error-alert-icon{flex-shrink:0;font-size:var(--font-size-lg);color:var(--color-error-500);margin-top:2px}.error-alert-sm .error-alert-icon{font-size:var(--font-size-base)}.error-alert-lg .error-alert-icon{font-size:var(--font-size-xl)}.error-alert-content{flex:1;min-width:0}.error-alert-title{font-weight:var(--font-weight-semibold);margin-bottom:var(--space-1);color:var(--color-error-900)}.error-alert-message{font-size:var(--font-size-sm);line-height:var(--line-height-relaxed);color:var(--color-error-700)}.error-alert-actions{display:flex;gap:var(--space-2);margin-top:var(--space-3)}.error-alert-actions .retry-button{font-size:var(--font-size-xs);padding:var(--space-1) 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.retry-button:hover{background:#ffffff4d}.error-modal{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-2xl);padding:var(--space-6);max-width:500px;width:90vw;z-index:1000;border:1px solid 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var(--breakpoint-sm)){.error-state{padding:var(--space-6)}.error-banner{flex-direction:column;align-items:flex-start;gap:var(--space-3)}.error-banner-actions{align-self:stretch;justify-content:flex-end}.error-modal{width:95vw;padding:var(--space-4)}.error-modal-actions{flex-direction:column}.error-toast{right:var(--space-2);left:var(--space-2);max-width:none}}@media (max-width: var(--breakpoint-md)){.error-alert{flex-direction:column;align-items:flex-start;gap:var(--space-2)}.error-alert-actions{align-self:stretch;justify-content:flex-end}}.sr-error{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}.error-state:focus-within{outline:2px solid var(--color-primary-500);outline-offset:2px}@media(prefers-contrast:high){.error-state,.retry-button{border-width:2px}}.error-center{display:flex;align-items:center;justify-content:center;min-height:200px}.error-center-sm{min-height:100px}.error-center-lg{min-height:400px}.error-text{color:var(--color-error-600);font-size:var(--font-size-sm)}.error-text-lg{font-size:var(--font-size-base)}.error-border{border-color:var(--color-error-300)}.error-border-left{border-left:4px solid var(--color-error-500)}.error-border-top{border-top:4px solid var(--color-error-500)}.error-bg{background:var(--color-error-50)}.error-bg-light{background:var(--color-error-25)}.error-icon-emoji{font-size:2rem;margin-bottom:var(--space-3)}.error-icon-emoji-sm{font-size:1.5rem;margin-bottom:var(--space-2)}.error-icon-emoji-lg{font-size:3rem;margin-bottom:var(--space-4)}.font-sans{font-family:var(--font-sans)}.font-mono{font-family:var(--font-mono)}.text-xs{font-size:var(--font-size-xs)}.text-2xl{font-size:var(--font-size-2xl)}.text-3xl{font-size:var(--font-size-3xl)}.text-4xl{font-size:var(--font-size-4xl)}.text-5xl{font-size:var(--font-size-5xl)}.text-6xl{font-size:var(--font-size-6xl)}.font-normal{font-weight:var(--font-weight-normal)}.font-medium{font-weight:var(--font-weight-medium)}.font-semibold{font-weight:var(--font-weight-semibold)}.font-bold{font-weight:var(--font-weight-bold)}.leading-none{line-height:var(--line-height-none)}.leading-tight{line-height:var(--line-height-tight)}.leading-snug{line-height:var(--line-height-snug)}.leading-normal{line-height:var(--line-height-normal)}.leading-relaxed{line-height:var(--line-height-relaxed)}.leading-loose{line-height:var(--line-height-loose)}.text-primary{color:var(--color-primary)}.text-primary-light{color:var(--color-primary-light)}.text-primary-dark{color:var(--color-primary-dark)}.text-secondary{color:var(--color-secondary)}.text-secondary-light{color:var(--color-secondary-light)}.text-secondary-dark{color:var(--color-secondary-dark)}.text-success{color:var(--color-success)}.text-success-light{color:var(--color-success-light)}.text-warning{color:var(--color-warning)}.text-warning-light{color:var(--color-warning-light)}.text-error{color:var(--color-error)}.text-error-light{color:var(--color-error-light)}.text-gray-50{color:var(--color-gray-50)}.text-gray-100{color:var(--color-gray-100)}.text-gray-200{color:var(--color-gray-200)}.text-gray-300{color:var(--color-gray-300)}.text-gray-400{color:var(--color-gray-400)}.text-left{text-align:left}.text-right{text-align:right}.text-justify{text-align:justify}.uppercase{text-transform:uppercase}.lowercase{text-transform:lowercase}.capitalize{text-transform:capitalize}.normal-case{text-transform:none}.underline{text-decoration:underline}.no-underline{text-decoration:none}.line-through{text-decoration:line-through}.heading-1{font-size:var(--font-size-4xl);font-weight:var(--font-weight-bold);line-height:var(--line-height-tight);color:var(--color-gray-900);margin-bottom:var(--space-6)}.heading-2{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);line-height:var(--line-height-tight);color:var(--color-gray-900);margin-bottom:var(--space-5)}.heading-3{font-size:var(--font-size-2xl);font-weight:var(--font-weight-semibold);line-height:var(--line-height-tight);color:var(--color-gray-800);margin-bottom:var(--space-4)}.heading-4{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);line-height:var(--line-height-tight);color:var(--color-gray-800);margin-bottom:var(--space-3)}.heading-5{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);line-height:var(--line-height-normal);color:var(--color-gray-800);margin-bottom:var(--space-2)}.heading-6{font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);line-height:var(--line-height-normal);color:var(--color-gray-700);margin-bottom:var(--space-2)}.body-large{font-size:var(--font-size-lg);font-weight:var(--font-weight-normal);line-height:var(--line-height-relaxed);color:var(--color-gray-700)}.body-base{font-size:var(--font-size-base);font-weight:var(--font-weight-normal);line-height:var(--line-height-normal);color:var(--color-gray-700)}.body-small{font-size:var(--font-size-sm);font-weight:var(--font-weight-normal);line-height:var(--line-height-normal);color:var(--color-gray-600)}.caption-large{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);line-height:var(--line-height-normal);color:var(--color-gray-600)}.caption-base{font-size:var(--font-size-xs);font-weight:var(--font-weight-normal);line-height:var(--line-height-normal);color:var(--color-gray-500)}.caption-small{font-size:var(--font-size-xs);font-weight:var(--font-weight-normal);line-height:var(--line-height-tight);color:var(--color-gray-400)}.text-responsive-xs{font-size:var(--font-size-xs)}@media 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var(--breakpoint-lg)){.heading-responsive-1{font-size:var(--font-size-4xl)}}.heading-responsive-2{font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);line-height:var(--line-height-tight)}@media (min-width: var(--breakpoint-md)){.heading-responsive-2{font-size:var(--font-size-2xl)}}@media (min-width: var(--breakpoint-lg)){.heading-responsive-2{font-size:var(--font-size-3xl)}}.heading-responsive-3{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);line-height:var(--line-height-tight)}@media (min-width: var(--breakpoint-md)){.heading-responsive-3{font-size:var(--font-size-xl)}}@media (min-width: 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var(--admin-space-2);border-radius:var(--admin-radius-sm)}.admin-btn--lg{font-size:var(--admin-font-md);padding:var(--admin-space-3) var(--admin-space-4);border-radius:var(--admin-radius-lg)}.admin-input{font-family:var(--admin-font-primary);font-size:var(--admin-font-sm);line-height:1.4;padding:var(--admin-space-2) var(--admin-space-3);border:1px solid var(--admin-border-medium);border-radius:var(--admin-radius-md);background-color:var(--admin-bg-primary);color:var(--admin-text-primary);transition:all var(--admin-transition-fast) var(--admin-transition-ease);width:100%}.admin-input:focus{outline:none;border-color:var(--admin-primary);box-shadow:0 0 0 3px #007aff1a}.admin-input:disabled{background-color:var(--admin-bg-tertiary);color:var(--admin-text-tertiary);cursor:not-allowed}.admin-input::-moz-placeholder{color:var(--admin-text-tertiary)}.admin-input::placeholder{color:var(--admin-text-tertiary)}.admin-select{font-family:var(--admin-font-primary);font-size:var(--admin-font-sm);line-height:1.4;padding:var(--admin-space-2) var(--admin-space-3);border:1px solid var(--admin-border-medium);border-radius:var(--admin-radius-md);background-color:var(--admin-bg-primary);color:var(--admin-text-primary);transition:all var(--admin-transition-fast) var(--admin-transition-ease);cursor:pointer;-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");background-position:right var(--admin-space-2) 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var(--admin-space-6);border-bottom:1px solid var(--admin-border-light);display:flex;align-items:center;justify-content:space-between}.admin-modal__title{font-size:var(--admin-font-lg);font-weight:var(--admin-weight-semibold);color:var(--admin-text-primary);margin:0}.admin-modal__close{background:none;border:none;color:var(--admin-text-secondary);cursor:pointer;padding:var(--admin-space-1);border-radius:var(--admin-radius-sm);transition:all var(--admin-transition-fast) var(--admin-transition-ease)}.admin-modal__close:hover{background-color:var(--admin-bg-secondary);color:var(--admin-text-primary)}.admin-modal__body{padding:var(--admin-space-6);overflow-y:auto;max-height:60vh}.admin-modal__footer{padding:var(--admin-space-4) var(--admin-space-6);border-top:1px solid var(--admin-border-light);display:flex;align-items:center;justify-content:flex-end;gap:var(--admin-space-2)}.admin-card{background-color:var(--admin-bg-primary);border:1px solid var(--admin-border-light);border-radius:var(--admin-radius-lg);box-shadow:var(--admin-shadow-sm);overflow:hidden;transition:all var(--admin-transition-fast) var(--admin-transition-ease)}.admin-card:hover{box-shadow:var(--admin-shadow-md);transform:translateY(-1px)}.admin-card__header{padding:var(--admin-space-4) var(--admin-space-5);border-bottom:1px solid var(--admin-border-light);background-color:var(--admin-bg-secondary)}.admin-card__title{font-size:var(--admin-font-md);font-weight:var(--admin-weight-semibold);color:var(--admin-text-primary);margin:0}.admin-card__body{padding:var(--admin-space-5)}.admin-card__footer{padding:var(--admin-space-4) var(--admin-space-5);border-top:1px solid var(--admin-border-light);background-color:var(--admin-bg-secondary)}.admin-table{width:100%;border-collapse:collapse;font-size:var(--admin-font-sm)}.admin-table th{background-color:var(--admin-bg-secondary);color:var(--admin-text-primary);font-weight:var(--admin-weight-semibold);text-align:left;padding:var(--admin-space-3) var(--admin-space-4);border-bottom:1px solid var(--admin-border-medium);white-space:nowrap}.admin-table td{padding:var(--admin-space-3) var(--admin-space-4);border-bottom:1px solid var(--admin-border-light);color:var(--admin-text-primary)}.admin-table tbody tr:hover{background-color:var(--admin-bg-secondary)}.admin-filter-section{background-color:var(--admin-bg-primary);border:1px solid var(--admin-border-light);border-radius:var(--admin-radius-lg);padding:var(--admin-space-4);margin-bottom:var(--admin-space-4);box-shadow:var(--admin-shadow-sm)}.admin-filter-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--admin-space-3);align-items:end}.admin-filter-group{display:flex;flex-direction:column;gap:var(--admin-space-1)}.admin-filter-label{font-size:var(--admin-font-xs);font-weight:var(--admin-weight-medium);color:var(--admin-text-secondary);text-transform:uppercase;letter-spacing:.05em}.admin-filter-actions{display:flex;align-items:center;gap:var(--admin-space-2);margin-top:var(--admin-space-3);padding-top:var(--admin-space-3);border-top:1px solid var(--admin-border-light)}.admin-status-badge{display:inline-flex;align-items:center;padding:var(--admin-space-1) var(--admin-space-2);border-radius:var(--admin-radius-sm);font-size:var(--admin-font-xs);font-weight:var(--admin-weight-medium);text-transform:uppercase;letter-spacing:.05em}.admin-status-badge--active{background-color:var(--admin-success-light);color:var(--admin-success)}.admin-status-badge--inactive{background-color:var(--admin-gray-100);color:var(--admin-gray-600)}.admin-status-badge--draft{background-color:var(--admin-warning-light);color:var(--admin-warning)}.admin-loading{display:inline-flex;align-items:center;gap:var(--admin-space-2);color:var(--admin-text-secondary);font-size:var(--admin-font-sm)}.admin-spinner{width:16px;height:16px;border:2px solid var(--admin-border-light);border-top:2px solid var(--admin-primary);border-radius:50%;animation:spin 1s linear infinite}@media(max-width:768px){.admin-filter-grid{grid-template-columns:1fr}.admin-modal{padding:var(--admin-space-2)}.admin-modal__content{max-width:100%;max-height:95vh}.admin-table{font-size:var(--admin-font-xs)}.admin-table th,.admin-table td{padding:var(--admin-space-2)}}:root{--teacher-modal-z-modal: 1000;--teacher-modal-z-dropdown: 100;--teacher-modal-z-tooltip: 50;--teacher-modal-transition-ease: cubic-bezier(.4, 0, .2, 1);--teacher-modal-font-primary: var(--font-sans);--teacher-modal-font-mono: var(--font-mono);--teacher-modal-primary: var(--color-primary);--teacher-modal-primary-light: var(--color-primary-light);--teacher-modal-primary-dark: var(--color-primary-dark);--teacher-modal-success: var(--color-success);--teacher-modal-success-light: var(--color-success-light);--teacher-modal-warning: var(--color-warning);--teacher-modal-warning-light: var(--color-warning-light);--teacher-modal-error: var(--color-error);--teacher-modal-error-light: var(--color-error-light);--teacher-modal-gray-50: var(--color-gray-50);--teacher-modal-gray-100: var(--color-gray-100);--teacher-modal-gray-200: var(--color-gray-200);--teacher-modal-gray-300: var(--color-gray-300);--teacher-modal-gray-400: var(--color-gray-400);--teacher-modal-gray-500: var(--color-gray-500);--teacher-modal-gray-600: var(--color-gray-600);--teacher-modal-gray-700: var(--color-gray-700);--teacher-modal-gray-800: var(--color-gray-800);--teacher-modal-gray-900: var(--color-gray-900);--teacher-modal-text-primary: var(--text-primary);--teacher-modal-text-secondary: var(--text-secondary);--teacher-modal-text-tertiary: var(--color-gray-400);--teacher-modal-bg-primary: #ffffff;--teacher-modal-bg-secondary: var(--bg-secondary);--teacher-modal-bg-tertiary: var(--bg-tertiary);--teacher-modal-border-light: var(--border-color);--teacher-modal-border-medium: var(--color-gray-300);--teacher-modal-border-strong: var(--color-gray-400);--teacher-modal-space-1: 8px;--teacher-modal-space-2: var(--space-4);--teacher-modal-space-3: var(--space-6);--teacher-modal-space-4: var(--space-8);--teacher-modal-space-5: 40px;--teacher-modal-space-6: var(--space-12);--teacher-modal-space-8: var(--space-16);--teacher-modal-font-xs: 11px;--teacher-modal-font-sm: 13px;--teacher-modal-font-base: var(--base-size);--teacher-modal-font-md: 16px;--teacher-modal-font-lg: 18px;--teacher-modal-font-xl: 20px;--teacher-modal-font-2xl: 24px;--teacher-modal-font-3xl: 28px;--teacher-modal-weight-regular: 400;--teacher-modal-weight-medium: 500;--teacher-modal-weight-semibold: 600;--teacher-modal-weight-bold: 700;--teacher-modal-radius-sm: 6px;--teacher-modal-radius-md: 8px;--teacher-modal-radius-lg: 12px;--teacher-modal-radius-xl: 16px;--teacher-modal-radius-2xl: 20px;--teacher-modal-shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, .1), 0 1px 2px 0 rgba(0, 0, 0, .06);--teacher-modal-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -2px rgba(0, 0, 0, .06);--teacher-modal-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -4px rgba(0, 0, 0, .06);--teacher-modal-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 8px 10px -6px rgba(0, 0, 0, .04);--teacher-modal-transition-fast: .15s;--teacher-modal-transition-normal: .2s;--teacher-modal-transition-slow: .3s}:root{--cue-card-width: 550px;--cue-card-height: 420px;--cue-card-ratio: 11/8;--cue-card-max-width: 90vw;--cue-card-max-height: 75vh}.exam-tutor-layout{display:grid;grid-template-columns:1fr clamp(300px,25vw,450px);grid-template-rows:1fr;height:100%;width:100%;gap:clamp(var(--space-2),3vw,var(--space-6));padding:clamp(var(--space-4),5vw,var(--space-10));box-sizing:border-box;background:var(--color-gray-50);overflow:hidden}.exam-tutor-left{display:flex;flex-direction:column;overflow-y:auto;height:100%;gap:clamp(var(--space-2),2vw,var(--space-4));padding-right:clamp(var(--space-2),2vw,var(--space-4));width:100%;max-width:100%;box-sizing:border-box}.ai-tutor-chat{height:100%;display:flex;flex-direction:column;overflow:hidden;background:#fff;border-radius:var(--radius-xl);box-shadow:var(--shadow);min-width:0;flex-shrink:0}@media(max-width:1400px){.exam-tutor-layout{grid-template-columns:1fr clamp(280px,22vw,400px);gap:clamp(var(--space-2),2.5vw,var(--space-5));padding:clamp(var(--space-3),4vw,var(--space-8))}}@media (max-width: var(--breakpoint-lg)){.exam-tutor-layout{grid-template-columns:1fr 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clamp(350px,28vw,500px);gap:clamp(var(--space-4),4vw,var(--space-8));padding:clamp(var(--space-6),6vw,var(--space-12))}}@media(min-width:1920px){.exam-tutor-layout{grid-template-columns:1fr clamp(400px,30vw,550px);gap:clamp(var(--space-5),5vw,var(--space-10));padding:clamp(var(--space-8),8vw,var(--space-16));max-width:1800px;margin:0 auto}}.text-sm{font-size:var(--font-size-xs)!important;line-height:var(--line-height-tight)}.text-sm p{margin-bottom:var(--space-1)}.text-sm p strong{font-weight:var(--font-weight-semibold);color:var(--color-gray-700)}@media (max-width: var(--breakpoint-sm)){button{min-height:54px;font-size:1.15rem;padding:var(--space-3) var(--space-7)}}select{width:100%;padding:1.1em 1.2em;border:1.5px solid #d1d5db;border-radius:12px;font-size:1.15rem;background:#f9fafb;color:#222;margin-top:.5rem;min-height:52px;-webkit-tap-highlight-color:transparent;-webkit-appearance:none;-moz-appearance:none;appearance:none;box-sizing:border-box;height:auto;line-height:1.5;background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 1rem center;background-size:1rem;padding-right:2.5rem}select option{font-size:1.1rem;padding:1em}@media (max-width: var(--breakpoint-md)){select{font-size:16px!important;min-height:44px!important;padding:.75em 1em!important;padding-right:2.5rem!important;-webkit-touch-callout:none;-webkit-user-select:none;-moz-user-select:none;user-select:none}select 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