@layer theme{:root,:host{--font-sans:ui-sans-serif,system-ui,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;--radius-xs:.125rem;--radius-sm:.25rem;--radius-md:.375rem;--radius-lg:.5rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif,system-ui,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab,red,red)){::placeholder{color:color-mix(in oklab,currentcolor 50%,transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.container{width:100%}@media(min-width:40rem){.container{max-width:40rem}}@media(min-width:48rem){.container{max-width:48rem}}@media(min-width:64rem){.container{max-width:64rem}}@media(min-width:80rem){.container{max-width:80rem}}@media(min-width:96rem){.container{max-width:96rem}}.inline{display:inline}.italic{font-style:italic}}:root{--ink:#1a1a2e;--ink-light:#2d2d44;--ink-muted:#4a4a6a;--paper:#faf8f5;--paper-warm:#f5f2ed;--paper-dark:#eae6df;--gold:#c9a227;--gold-light:#e8d48a;--gold-dark:#9a7b1c;--crimson:#8b2635;--sage:#4a7c59;--chalk:#fff;--font-display:"Instrument Serif",Georgia,serif;--font-body:"Source Serif 4",Georgia,serif;--font-mono:"JetBrains Mono","Consolas",monospace;--space-xs:.25rem;--space-sm:.5rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--space-2xl:3rem;--space-3xl:5rem;--shadow-soft:0 2px 20px #1a1a2e14;--shadow-lifted:0 8px 40px #1a1a2e1f;--shadow-dramatic:0 20px 60px #1a1a2e33;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--grid-pattern:repeating-linear-gradient(0deg,transparent,transparent 39px,#1a1a2e08 39px,#1a1a2e08 40px),repeating-linear-gradient(90deg,transparent,transparent 39px,#1a1a2e08 39px,#1a1a2e08 40px);--paper-texture:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%' height='100%' filter='url(%23noise)'/%3E%3C/svg%3E")}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-body);color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:1rem;font-weight:400;line-height:1.7}::selection{background:var(--gold-light);color:var(--ink)}.app{flex-direction:column;min-height:100vh;display:flex;position:relative}.app:before{content:"";background:var(--grid-pattern);pointer-events:none;z-index:0;opacity:.5;position:fixed;inset:0}.app-main{z-index:1;flex:1;position:relative}.app-header{background:var(--chalk);z-index:1000;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#fffffff2;border-bottom:1px solid #1a1a2e14;position:sticky;top:0}.app-header__container{max-width:1400px;padding:var(--space-md)var(--space-xl);justify-content:space-between;align-items:center;margin:0 auto;display:flex}.app-header__logo{font-family:var(--font-display);color:var(--ink);letter-spacing:-.02em;font-size:1.75rem;font-weight:400;text-decoration:none;transition:color .3s;position:relative}.app-header__logo:after{content:"∞";color:var(--gold);opacity:0;font-size:.75rem;transition:all .3s;position:absolute;top:-8px;right:-20px;transform:translateY(5px)}.app-header__logo:hover:after{opacity:1;transform:translateY(0)}.app-header__nav{gap:var(--space-2xl);display:flex}.nav-link{font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-muted);padding:var(--space-sm)0;font-size:.75rem;font-weight:500;text-decoration:none;transition:color .3s;position:relative}.nav-link:after{content:"";background:var(--gold);width:0;height:1px;transition:width .4s cubic-bezier(.22,1,.36,1);position:absolute;bottom:0;left:0}.nav-link:hover{color:var(--ink)}.nav-link:hover:after{width:100%}.app-header__auth{gap:var(--space-md);align-items:center;display:flex}.nav-link--user{color:var(--ink-muted);text-overflow:ellipsis;white-space:nowrap;max-width:200px;font-size:.875rem;overflow:hidden}.nav-link--guest{font-family:var(--font-mono);color:var(--gold-dark);background:linear-gradient(135deg,#c9a22726,#c9a2270d);border:1px solid #c9a2274d;border-radius:1rem;padding:.375rem .75rem;font-size:.75rem}.btn{font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;cursor:pointer;border:none;justify-content:center;align-items:center;font-size:.75rem;font-weight:500;text-decoration:none;transition:all .4s cubic-bezier(.22,1,.36,1);display:inline-flex;position:relative;overflow:hidden}.btn--primary{background:var(--ink);color:var(--paper);border-radius:var(--radius-sm);padding:.875rem 1.75rem}.btn--primary:before{content:"";background:linear-gradient(90deg,#0000,#c9a2274d,#0000);width:100%;height:100%;transition:left .6s;position:absolute;top:0;left:-100%}.btn--primary:hover{background:var(--ink-light);box-shadow:var(--shadow-lifted);transform:translateY(-2px)}.btn--primary:hover:before{left:100%}.btn--primary:disabled{background:var(--ink-muted);cursor:not-allowed;box-shadow:none;transform:none}.btn--secondary{color:var(--ink);border:1px solid var(--ink);border-radius:var(--radius-sm);background:0 0;padding:.75rem 1.5rem}.btn--secondary:hover{background:var(--ink);color:var(--paper)}.btn--large{padding:1.125rem 2.5rem;font-size:.8125rem}.btn--link{color:var(--gold-dark);text-transform:none;letter-spacing:normal;font-family:var(--font-body);background:0 0;padding:0;font-size:.9375rem}.btn--link:hover{color:var(--ink)}.btn--icon{padding:var(--space-sm);background:var(--paper-warm);border-radius:var(--radius-sm);min-width:2rem;min-height:2rem;font-size:1rem}.btn--icon:hover{background:var(--paper-dark)}.btn--danger{background:var(--crimson);color:#fff;border-color:var(--crimson)}.btn--danger:hover{background:#6b1e29;border-color:#6b1e29}.btn--danger:disabled{cursor:not-allowed;background:#c0a0a4;border-color:#c0a0a4}.btn--active{background:var(--gold);color:var(--ink);border-color:var(--gold)}.hero{padding:var(--space-3xl)var(--space-xl);text-align:center;background:linear-gradient(180deg,var(--chalk)0%,var(--paper)100%);position:relative;overflow:hidden}.hero:before{content:"";pointer-events:none;background:radial-gradient(circle,#c9a22714,#0000 70%);width:800px;height:800px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.hero:after{content:"∫ ∑ ∂ π √ ∞";font-family:var(--font-display);color:var(--ink);opacity:.03;pointer-events:none;letter-spacing:.5em;font-size:3rem;font-style:italic;position:absolute;top:20%;right:10%}.hero h1{font-family:var(--font-display);margin-bottom:var(--space-lg);color:var(--ink);letter-spacing:-.03em;font-size:clamp(2.5rem,6vw,4.5rem);font-weight:400;line-height:1.1;animation:1s cubic-bezier(.22,1,.36,1) forwards fadeInUp;position:relative}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.hero__subtitle{font-family:var(--font-body);color:var(--ink-muted);max-width:600px;margin:0 auto var(--space-2xl);opacity:0;font-size:1.25rem;font-weight:300;line-height:1.8;animation:1s cubic-bezier(.22,1,.36,1) .15s forwards fadeInUp}.hero__cta{gap:var(--space-md);opacity:0;justify-content:center;animation:1s cubic-bezier(.22,1,.36,1) .3s forwards fadeInUp;display:flex}.features{padding:var(--space-3xl)var(--space-xl);max-width:1200px;margin:0 auto}.features h2{font-family:var(--font-display);text-align:center;margin-bottom:var(--space-3xl);letter-spacing:-.02em;font-size:2.5rem;font-weight:400;position:relative}.features h2:after{content:"";background:var(--gold);width:60px;height:2px;margin:var(--space-lg)auto 0;display:block}.features__grid{gap:var(--space-xl);grid-template-columns:repeat(3,1fr);display:grid}.feature-card{padding:var(--space-2xl);background:var(--chalk);border-radius:var(--radius-md);border:1px solid #1a1a2e0f;transition:all .5s cubic-bezier(.22,1,.36,1);position:relative;overflow:hidden}.feature-card:before{content:"";background:var(--gold);width:3px;height:0;transition:height .5s cubic-bezier(.22,1,.36,1);position:absolute;top:0;left:0}.feature-card:hover{box-shadow:var(--shadow-dramatic);border-color:#0000;transform:translateY(-8px)}.feature-card:hover:before{height:100%}.feature-card__icon{margin-bottom:var(--space-lg);font-size:2rem;display:block}.feature-card h3{font-family:var(--font-display);margin-bottom:var(--space-sm);color:var(--ink);font-size:1.375rem;font-weight:400}.feature-card p{color:var(--ink-muted);font-size:.9375rem;line-height:1.7}.how-it-works{padding:var(--space-3xl)var(--space-xl);background:var(--ink);color:var(--paper);position:relative;overflow:hidden}.how-it-works:before{content:"";background:var(--grid-pattern);opacity:.05;position:absolute;inset:0}.how-it-works h2{font-family:var(--font-display);text-align:center;margin-bottom:var(--space-3xl);letter-spacing:-.02em;font-size:2.5rem;font-weight:400;position:relative}.how-it-works h2:after{content:"";background:var(--gold);width:60px;height:2px;margin:var(--space-lg)auto 0;display:block}.steps{justify-content:center;align-items:flex-start;gap:0;max-width:1100px;margin:0 auto;display:flex;position:relative}.step{text-align:center;padding:0 var(--space-xl);flex:1;position:relative}.step__number{border:2px solid var(--gold);width:4rem;height:4rem;color:var(--gold);font-family:var(--font-display);margin:0 auto var(--space-lg);z-index:2;background:0 0;border-radius:50%;justify-content:center;align-items:center;font-size:1.5rem;font-style:italic;transition:all .4s;display:flex;position:relative}.step:hover .step__number{background:var(--gold);color:var(--ink);transform:scale(1.1)}.step h3{font-family:var(--font-display);margin-bottom:var(--space-sm);font-size:1.25rem;font-weight:400}.step p{color:#faf8f5b3;font-size:.9375rem;line-height:1.7}.step__arrow{color:var(--gold);opacity:.5;flex-shrink:0;align-self:center;font-size:1.5rem}.subjects{padding:var(--space-3xl)var(--space-xl);text-align:center}.subjects h2{font-family:var(--font-display);margin-bottom:var(--space-md);letter-spacing:-.02em;font-size:2.5rem;font-weight:400}.subjects__subtitle{font-family:var(--font-body);color:var(--ink-muted);margin-bottom:var(--space-2xl);font-size:1.0625rem}.subject-tags{gap:var(--space-sm);flex-wrap:wrap;justify-content:center;max-width:900px;margin:0 auto;display:flex}.subject-tag{font-family:var(--font-mono);letter-spacing:.04em;background:var(--paper-warm);color:var(--ink);border:1px solid #1a1a2e14;border-radius:999px;padding:.75rem 1.25rem;font-size:.75rem;font-weight:500;transition:all .3s}.subject-tag:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);transform:translateY(-2px)}.subject-tag--featured{background:var(--ink);color:var(--paper);border-color:var(--ink)}.subject-tag--featured:hover{background:var(--gold);color:var(--ink);border-color:var(--gold)}.hero__eyebrow{font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--gold-dark);margin-bottom:var(--space-lg);font-size:.75rem;font-weight:500;animation:1s cubic-bezier(.22,1,.36,1) forwards fadeInUp}.hero__highlight{color:var(--gold-dark);display:block;position:relative}.hero__highlight:after{content:"";background:var(--gold-light);opacity:.5;z-index:-1;width:100%;height:.15em;position:absolute;bottom:.1em;left:0}.hero__note{font-family:var(--font-mono);color:var(--ink-muted);margin-top:var(--space-lg);opacity:0;font-size:.8125rem;animation:1s cubic-bezier(.22,1,.36,1) .45s forwards fadeInUp}.how-it-works__subtitle{font-family:var(--font-body);color:#faf8f5b3;text-align:center;max-width:500px;margin:calc(-1*var(--space-2xl))auto var(--space-3xl);font-size:1.125rem}.steps-enhanced{justify-content:center;align-items:stretch;gap:0;max-width:1200px;margin:0 auto;display:flex;position:relative}.step-card{border-radius:var(--radius-md);max-width:260px;padding:var(--space-2xl)var(--space-lg);text-align:center;background:#faf8f508;border:1px solid #c9a22733;flex-direction:column;flex:1;align-items:center;transition:all .4s cubic-bezier(.22,1,.36,1);display:flex;position:relative}.step-card:hover{border-color:var(--gold);background:#faf8f50f;transform:translateY(-4px)}.step-card--final{border-color:var(--gold);background:#c9a22714}.step-card--final:hover{background:#c9a22726}.step-card__number{border:2px solid var(--gold);width:3rem;height:3rem;color:var(--gold);font-family:var(--font-display);margin-bottom:var(--space-lg);background:0 0;border-radius:50%;justify-content:center;align-items:center;font-size:1.25rem;font-style:italic;transition:all .4s;display:flex}.step-card:hover .step-card__number{background:var(--gold);color:var(--ink);transform:scale(1.1)}.step-card__content h3{font-family:var(--font-display);margin-bottom:var(--space-sm);color:var(--paper);font-size:1.125rem;font-weight:400}.step-card__content p{color:#faf8f5a6;font-size:.875rem;line-height:1.7}.step-card__icon{padding-top:var(--space-lg);color:var(--gold);opacity:.4;margin-top:auto;transition:opacity .3s}.step-card:hover .step-card__icon{opacity:.7}.step-connector{color:var(--gold);opacity:.4;padding:0 var(--space-sm);flex-shrink:0;justify-content:center;align-items:center;display:flex}.how-it-works__cta{text-align:center;margin-top:var(--space-3xl)}.btn--gold{background:var(--gold);color:var(--ink);border-radius:var(--radius-sm);padding:1rem 2.25rem}.btn--gold:hover{background:var(--gold-light);transform:translateY(-2px);box-shadow:0 8px 30px #c9a2274d}.faq{padding:var(--space-3xl)var(--space-xl);max-width:800px;margin:0 auto}.faq h2{font-family:var(--font-display);text-align:center;margin-bottom:var(--space-3xl);letter-spacing:-.02em;font-size:2.5rem;font-weight:400;position:relative}.faq h2:after{content:"";background:var(--gold);width:60px;height:2px;margin:var(--space-lg)auto 0;display:block}.faq__list{gap:var(--space-md);flex-direction:column;display:flex}.faq__item{background:var(--chalk);border-radius:var(--radius-md);border:1px solid #1a1a2e14;transition:all .3s;overflow:hidden}.faq__item:hover{border-color:#1a1a2e26}.faq__item--open{border-color:var(--gold);box-shadow:var(--shadow-soft)}.faq__question{justify-content:space-between;align-items:center;gap:var(--space-lg);width:100%;padding:var(--space-lg)var(--space-xl);cursor:pointer;text-align:left;font-family:var(--font-body);color:var(--ink);background:0 0;border:none;font-size:1.0625rem;font-weight:500;transition:color .3s;display:flex}.faq__question:hover{color:var(--ink-light)}.faq__icon{color:var(--gold);flex-shrink:0;transition:transform .3s}.faq__item--open .faq__icon{transform:rotate(45deg)}.faq__answer{max-height:0;transition:max-height .4s cubic-bezier(.22,1,.36,1),padding .4s cubic-bezier(.22,1,.36,1);overflow:hidden}.faq__item--open .faq__answer{max-height:300px}.faq__answer p{padding:0 var(--space-xl)var(--space-xl);color:var(--ink-muted);font-size:.9375rem;line-height:1.8}.final-cta{padding:var(--space-3xl)var(--space-xl);text-align:center;background:linear-gradient(180deg,var(--paper)0%,var(--paper-warm)100%);position:relative}.final-cta:before{content:"";background:linear-gradient(90deg,transparent,var(--gold),transparent);width:200px;height:1px;position:absolute;top:0;left:50%;transform:translate(-50%)}.final-cta h2{font-family:var(--font-display);margin-bottom:var(--space-md);letter-spacing:-.02em;font-size:2rem;font-weight:400}.final-cta p{color:var(--ink-muted);margin-bottom:var(--space-2xl);font-size:1.0625rem}.app-footer{background:var(--ink);color:var(--paper);padding:var(--space-3xl)var(--space-xl)var(--space-lg);position:relative}.app-footer:before{content:"";background:linear-gradient(90deg,transparent,var(--gold),transparent);height:1px;position:absolute;top:0;left:0;right:0}.app-footer__container{gap:var(--space-3xl);grid-template-columns:1.5fr 2fr;max-width:1200px;margin:0 auto;display:grid}.app-footer__logo{font-family:var(--font-display);color:var(--paper);margin-bottom:var(--space-md);font-size:1.5rem;display:block}.app-footer__brand p{color:#faf8f599;max-width:280px;font-size:.9375rem}.app-footer__links{gap:var(--space-2xl);grid-template-columns:repeat(3,1fr);display:grid}.footer-section h4{font-family:var(--font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--gold);margin-bottom:var(--space-lg);font-size:.6875rem;font-weight:600}.footer-section ul{list-style:none}.footer-section li{margin-bottom:var(--space-sm)}.footer-section a{color:#faf8f5b3;font-size:.9375rem;text-decoration:none;transition:color .3s}.footer-section a:hover{color:var(--paper)}.app-footer__bottom{margin-top:var(--space-2xl);padding-top:var(--space-lg);text-align:center;color:#faf8f566;border-top:1px solid #faf8f51a;font-size:.8125rem}.create-exam-page{max-width:900px;padding:var(--space-2xl);margin:0 auto}.page-header{margin-bottom:var(--space-2xl)}.page-header h1{font-family:var(--font-display);margin-bottom:var(--space-xl);letter-spacing:-.02em;font-size:2.5rem;font-weight:400}.stepper{align-items:center;display:flex}.stepper__step{align-items:center;gap:var(--space-sm);color:var(--ink-muted);display:flex}.stepper__step--active{color:var(--ink)}.stepper__step--active .stepper__number{background:var(--ink);color:var(--paper);border-color:var(--ink)}.stepper__step--completed .stepper__number{background:var(--sage);color:var(--paper);border-color:var(--sage)}.stepper__number{border:2px solid var(--ink-muted);width:2.25rem;height:2.25rem;font-family:var(--font-mono);background:0 0;border-radius:50%;justify-content:center;align-items:center;font-size:.75rem;font-weight:600;transition:all .3s;display:flex}.stepper__label{font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;font-size:.6875rem}.stepper__connector{background:var(--paper-dark);width:4rem;height:2px;margin:0 var(--space-md)}.file-upload{margin-bottom:var(--space-2xl)}.dropzone{border-radius:var(--radius-md);padding:var(--space-2xl);text-align:center;cursor:pointer;background:var(--chalk);border:2px dashed #1a1a2e33;transition:border-color .3s,background-color .3s;position:relative;overflow:hidden}.dropzone:before{content:"";pointer-events:none;background:repeating-linear-gradient(0deg,#0000,#0000 27px,#1a1a2e08 27px 28px);position:absolute;inset:0}.dropzone:hover,.dropzone--active{border-color:var(--gold);background:#c9a2270a}.dropzone--disabled{opacity:.6;cursor:not-allowed}.dropzone__content{align-items:center;gap:var(--space-sm);z-index:1;flex-direction:column;display:flex;position:relative}.dropzone__icon{width:3.5rem;height:3.5rem;color:var(--ink-muted);stroke-width:1.5px}.dropzone__content p{font-family:var(--font-display);color:var(--ink);font-size:1.25rem}.dropzone__hint{color:var(--ink-muted);font-size:.875rem}.dropzone__formats{font-family:var(--font-mono);color:var(--ink-muted);margin-top:var(--space-sm);letter-spacing:.04em;font-size:.6875rem}.dropzone__warning{color:var(--crimson);margin-top:var(--space-md);padding:var(--space-sm)var(--space-md);background:#8b263514;border-radius:4px;font-size:.6875rem;line-height:1.5}.uploaded-files{margin-top:var(--space-xl)}.uploaded-files__header{margin-bottom:var(--space-md);justify-content:space-between;align-items:center;display:flex}.uploaded-files h4{font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-muted);margin-bottom:0;font-size:.75rem;font-weight:600}.uploaded-files ul{list-style:none}.uploaded-file{padding:var(--space-md)var(--space-lg);background:var(--chalk);border-radius:var(--radius-sm);margin-bottom:var(--space-sm);border:1px solid #1a1a2e0f;justify-content:space-between;align-items:center;transition:all .3s;display:flex}.uploaded-file:hover{border-color:var(--gold)}.uploaded-file__info{gap:var(--space-lg);align-items:center;display:flex}.uploaded-file__name{font-weight:500}.uploaded-file__size{font-family:var(--font-mono);color:var(--ink-muted);font-size:.75rem}.uploaded-file__remove{color:var(--ink-muted);cursor:pointer;border-radius:var(--radius-sm);background:0 0;border:none;justify-content:center;align-items:center;width:2rem;height:2rem;font-size:1.5rem;transition:all .3s;display:flex}.uploaded-file__remove:hover{color:var(--crimson);background:#8b26351a}.form-section{background:var(--chalk);border-radius:var(--radius-md);padding:var(--space-2xl);margin-bottom:var(--space-xl);border:1px solid #1a1a2e0f;position:relative}.form-section:before{content:"";background:var(--gold);border-radius:var(--radius-md)0 0 var(--radius-md);width:3px;height:100%;position:absolute;top:0;left:0}.form-section h3{font-family:var(--font-display);margin-bottom:var(--space-lg);padding-bottom:var(--space-md);border-bottom:1px solid #1a1a2e0f;font-size:1.5rem;font-weight:400}.form-row{gap:var(--space-lg);margin-bottom:var(--space-md);grid-template-columns:repeat(2,1fr);display:grid}.form-group{margin-bottom:var(--space-lg)}.form-group label{font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-muted);margin-bottom:var(--space-sm);font-size:.6875rem;font-weight:600;display:block}.form-group input,.form-group select,.form-group textarea{border-radius:var(--radius-sm);width:100%;font-family:var(--font-body);background:var(--paper);color:var(--ink);border:1px solid #1a1a2e1f;padding:.875rem 1rem;font-size:1rem;transition:all .3s}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--gold);outline:none;box-shadow:0 0 0 3px #c9a22726}.form-group input::placeholder,.form-group textarea::placeholder{color:var(--ink-muted);font-style:italic}.form-hint{color:var(--ink-muted);margin-top:var(--space-xs);font-size:.8125rem;font-style:italic;display:block}.form-group--checkbox{flex-direction:column;justify-content:center;display:flex}.checkbox-label{align-items:center;gap:var(--space-sm);cursor:pointer;color:var(--ink);font-weight:500;display:flex}.checkbox-label input[type=checkbox]{width:1.125rem;height:1.125rem;accent-color:var(--gold);cursor:pointer}.checkbox-label span{font-family:var(--font-body)}.form-group--checkbox .form-hint{margin-left:calc(1.125rem + var(--space-sm))}.question-type-grid{gap:var(--space-md);grid-template-columns:repeat(2,1fr);display:grid}.question-type-option{justify-content:space-between;align-items:center;gap:var(--space-md);padding:var(--space-lg);border-radius:var(--radius-sm);background:var(--paper);border:1px solid #1a1a2e14;transition:all .3s;display:flex}.question-type-option:hover{border-color:var(--gold);background:var(--chalk)}.question-type-option:has(.question-count-input:focus){border-color:var(--gold);box-shadow:0 0 0 3px #c9a2271a}.question-type-content{flex:1}.question-type-label{font-family:var(--font-display);margin-bottom:2px;font-size:1.0625rem;font-weight:400;display:block}.question-type-description{color:var(--ink-muted);font-size:.8125rem;display:block}.question-count-input{border-radius:var(--radius-sm);min-width:4.5rem;max-width:4.5rem;font-family:var(--font-mono);text-align:center;background:var(--chalk);border:1px solid #1a1a2e1f;flex-shrink:0;padding:.5rem;font-size:1rem;transition:all .3s;width:4.5rem!important}.question-count-input:focus{border-color:var(--gold);outline:none;box-shadow:0 0 0 3px #c9a22726}.mc-options-selector{gap:var(--space-md);display:flex}.mc-option{align-items:center;gap:var(--space-xs);padding:var(--space-md)var(--space-lg);background:var(--chalk);border-radius:var(--radius-md);cursor:pointer;border:1px solid #1a1a2e1a;flex-direction:column;flex:1;transition:all .3s;display:flex}.mc-option:hover{border-color:var(--gold)}.mc-option--selected{border-color:var(--gold);background:linear-gradient(135deg,#c9a22714,#c9a2270a)}.mc-option input[type=radio]{display:none}.mc-option span:first-of-type{font-family:var(--font-mono);font-size:.875rem;font-weight:500}.mc-option-labels{font-family:var(--font-mono);color:var(--ink-muted);font-size:.75rem}.info-box{border-radius:var(--radius-sm);padding:var(--space-lg);margin-bottom:var(--space-lg);background:linear-gradient(135deg,#c9a22714,#c9a2270a);border:1px solid #c9a22733}.info-box strong{font-family:var(--font-display);margin-bottom:var(--space-xs);display:block}.info-box code{font-family:var(--font-mono);background:var(--chalk);border-radius:3px;padding:2px 6px;font-size:.875rem}.exam-editor-page{gap:var(--space-xl);max-width:1500px;padding:var(--space-2xl);grid-template-columns:1fr 420px;margin:0 auto;display:grid}.exam-editor-page--loading,.exam-editor-page--error{flex-direction:column;grid-column:1/-1;justify-content:center;align-items:center;min-height:400px;display:flex}.exam-editor{background:var(--chalk);border-radius:var(--radius-md);border:1px solid #1a1a2e0f;overflow:hidden}.exam-editor__header{padding:var(--space-xl);background:linear-gradient(180deg,var(--paper)0%,var(--chalk)100%);border-bottom:1px solid #1a1a2e0f;justify-content:space-between;align-items:flex-start;display:flex}.exam-editor__title-input{font-family:var(--font-display);width:100%;color:var(--ink);letter-spacing:-.02em;background:0 0;border:none;padding:0;font-size:1.75rem;font-weight:400}.exam-editor__title-input:focus{outline:none}.exam-editor__meta{gap:var(--space-lg);font-family:var(--font-mono);color:var(--ink-muted);margin-top:var(--space-sm);letter-spacing:.04em;font-size:.75rem;display:flex}.save-status{transition:opacity .2s,color .2s}.save-status--idle{opacity:0}.save-status--saving{color:var(--gold);opacity:1;animation:1s ease-in-out infinite pulse}.save-status--saved{color:var(--sage);opacity:1}.save-status--error{color:var(--crimson);opacity:1}@keyframes pulse{50%{opacity:.5}}.exam-editor__actions{gap:var(--space-sm);display:flex}.exam-editor__settings{padding:var(--space-xl);background:var(--paper-warm);border-bottom:1px solid #1a1a2e0f}.exam-editor__settings h4{font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-muted);margin-bottom:var(--space-md);font-size:.6875rem;font-weight:600}.settings-row{gap:var(--space-xl);flex-wrap:wrap;align-items:center;display:flex}.setting-group{align-items:center;gap:var(--space-sm);display:flex}.setting-group label{color:var(--ink);font-size:.875rem}.setting-group select,.setting-group input[type=number]{border-radius:var(--radius-sm);font-family:var(--font-mono);background:var(--chalk);border:1px solid #1a1a2e1f;padding:.5rem .75rem;font-size:.8125rem}.setting-group--full{margin-top:var(--space-md);flex-direction:column;flex-basis:100%;align-items:flex-start}.setting-group--full textarea{border-radius:var(--radius-sm);width:100%;font-family:var(--font-body);background:var(--chalk);border:1px solid #1a1a2e1f;padding:.75rem;font-size:.9375rem}.exam-editor__questions{padding:var(--space-xl)}.exam-editor__questions h4{font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-muted);margin-bottom:var(--space-lg);font-size:.6875rem;font-weight:600}.btn--add-question{width:100%;padding:var(--space-md);border-radius:var(--radius-sm);color:var(--ink-muted);font-family:var(--font-mono);background:0 0;border:2px dashed #1a1a2e26;transition:all .3s}.btn--add-question:hover{border-color:var(--gold);color:var(--gold-dark);background:#c9a2270d}.question-card{border-radius:var(--radius-sm);margin-bottom:var(--space-md);background:var(--chalk);border:1px solid #1a1a2e14;transition:all .3s}.question-card--collapsed{padding:var(--space-lg);cursor:pointer}.question-card--collapsed:hover{border-color:var(--gold);box-shadow:var(--shadow-soft)}.question-card__header{align-items:center;gap:var(--space-md);display:flex}.question-number{font-family:var(--font-display);color:var(--gold-dark);font-size:1.125rem;font-style:italic;font-weight:400}.question-type-badge{font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;background:var(--paper-warm);color:var(--ink-muted);border-radius:3px;padding:.375rem .625rem;font-size:.625rem;font-weight:600}.question-points{font-family:var(--font-mono);color:var(--ink-muted);margin-left:auto;font-size:.75rem}.question-card__preview{margin-top:var(--space-md);color:var(--ink-muted);font-size:.9375rem;line-height:1.6}.question-card__math-preview{margin-top:var(--space-sm);padding:var(--space-sm)var(--space-md);background:var(--paper-warm);border-radius:var(--radius-sm);border-left:2px solid var(--gold)}.question-card--active{border-color:var(--gold);box-shadow:var(--shadow-lifted)}.question-card--active .question-card__header{padding:var(--space-lg);background:var(--paper-warm);border-bottom:1px solid #1a1a2e0f;justify-content:space-between}.question-card__actions{gap:var(--space-xs);display:flex}.question-card__body{padding:var(--space-lg)}.mc-options{gap:var(--space-sm);flex-direction:column;display:flex}.mc-option{align-items:center!important;gap:var(--space-sm)!important;padding:var(--space-sm)!important;background:var(--paper)!important;border-radius:var(--radius-sm)!important;box-sizing:border-box!important;flex-flow:row!important;width:100%!important;display:flex!important}.mc-option input[type=radio]{cursor:pointer;flex-shrink:0;width:18px;height:18px}.mc-option__label{font-family:var(--font-display);width:1.5rem;color:var(--gold-dark);flex-shrink:0;font-style:italic;font-weight:400}.mc-option input[type=text].mc-option__input,.mc-option__input{width:auto!important;min-width:200px!important;max-width:none!important;font-size:1rem!important;font-family:var(--font-body)!important;color:var(--ink)!important;background:var(--chalk)!important;border-radius:var(--radius-sm)!important;box-sizing:border-box!important;border:1px solid #1a1a2e33!important;flex:auto!important;padding:.625rem .875rem!important;transition:border-color .2s,box-shadow .2s!important}.mc-option input[type=text].mc-option__input:focus,.mc-option__input:focus{border-color:var(--gold)!important;outline:none!important;box-shadow:0 0 0 3px #c9a22726!important}.mc-option__input::placeholder{color:var(--ink-muted);opacity:.6}.mc-option .btn--icon{flex-shrink:0}.mc-add-option{margin-top:var(--space-sm);align-self:flex-start}.sub-questions-section{margin-top:var(--space-lg);padding-top:var(--space-lg);border-top:1px solid #1a1a2e1a}.sub-questions-list{gap:var(--space-md);flex-direction:column;display:flex}.sub-question-item{padding:var(--space-md);background:var(--paper-warm);border-radius:var(--radius-sm);border-left:3px solid var(--gold)}.sub-question-header{align-items:center;gap:var(--space-md);margin-bottom:var(--space-sm);display:flex}.sub-question-label{font-family:var(--font-display);color:var(--ink);font-size:1.125rem;font-weight:600}.sub-question-points{font-family:var(--font-mono);color:var(--gold-dark);border-radius:var(--radius-xs);background:#c9a2271a;padding:.125rem .5rem;font-size:.75rem}.sub-question-space{font-family:var(--font-mono);color:var(--ink-muted);font-size:.75rem}.sub-question-content{padding-left:var(--space-md);color:var(--ink)}.sub-question-solution{margin-top:var(--space-sm);padding:var(--space-sm);border-radius:var(--radius-xs);background:#4a7c591a;font-size:.875rem}.sub-question-solution .solution-label{color:var(--sage);margin-right:var(--space-sm);font-weight:600}.sub-question-item--editable{padding:var(--space-lg)}.sub-question-item--editable .sub-question-header{gap:var(--space-sm);flex-wrap:wrap}.sub-question-controls{align-items:flex-end;gap:var(--space-md);flex:1;display:flex}.sub-question-field{gap:var(--space-xs);flex-direction:column;display:flex}.sub-question-field label{text-transform:uppercase;letter-spacing:.05em;color:var(--ink-muted);font-size:.6875rem;font-weight:600}.sub-question-points-input{width:60px;padding:var(--space-xs)var(--space-sm);border-radius:var(--radius-xs);font-size:.875rem;font-family:var(--font-mono);border:1px solid #1a1a2e26}.sub-question-space-select{padding:var(--space-xs)var(--space-sm);border-radius:var(--radius-xs);background:#fff;border:1px solid #1a1a2e26;min-width:140px;font-size:.875rem}.sub-question-content-edit{margin-top:var(--space-md)}.sub-question-textarea{width:100%;padding:var(--space-sm);font-family:var(--font-body);border-radius:var(--radius-sm);resize:vertical;border:1px solid #1a1a2e26;min-height:60px;font-size:.9375rem}.sub-question-textarea:focus{border-color:var(--gold);outline:none;box-shadow:0 0 0 2px #c9a22726}.sub-question-textarea--solution{background:#4a7c590d;min-height:40px}.sub-question-preview{margin-top:var(--space-sm);padding:var(--space-sm);border-radius:var(--radius-xs);background:#c9a22714;font-size:.9375rem}.sub-question-solution-edit{margin-top:var(--space-sm)}.sub-question-solution-edit label{color:var(--ink-muted);margin-bottom:var(--space-xs);font-size:.75rem;display:block}.sub-question-add{margin-top:var(--space-sm)}.math-preview{font-family:"KaTeX_Main",var(--font-body)}.math-preview-box{margin-top:var(--space-sm);padding:var(--space-md);background:var(--paper-warm);border-radius:var(--radius-sm);border-left:2px solid var(--gold);overflow-x:auto}.math-error{color:var(--crimson);font-size:.875rem;font-family:var(--font-mono)}.latex-editor{padding:var(--space-xl)}.latex-editor h4{font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-muted);margin-bottom:var(--space-md);font-size:.6875rem;font-weight:600}.latex-source{width:100%;font-family:var(--font-mono);padding:var(--space-lg);border-radius:var(--radius-sm);background:var(--ink);color:#e2e8f0;resize:vertical;border:1px solid #1a1a2e14;min-height:400px;font-size:.8125rem;line-height:1.6}.latex-source:focus{border-color:var(--gold);outline:none;box-shadow:0 0 0 3px #c9a22726}.latex-editor__header{margin-bottom:var(--space-md);justify-content:space-between;align-items:center;display:flex}.latex-editor__header h4{margin-bottom:0}.latex-editor__status{align-items:center;gap:var(--space-md);display:flex}.latex-modified-badge{font-family:var(--font-mono);letter-spacing:.04em;text-transform:uppercase;color:var(--gold-dark);background:#c9a22726;border-radius:3px;padding:.375rem .75rem;font-size:.6875rem;font-weight:600}.latex-placeholder{background:var(--paper-warm);border-radius:var(--radius-sm);text-align:center;height:300px;color:var(--ink-muted);border:1px dashed #1a1a2e26;flex-direction:column;justify-content:center;align-items:center;display:flex}.latex-placeholder p{margin-bottom:var(--space-lg);font-style:italic}.latex-hint{color:var(--ink-muted);margin-top:var(--space-md);font-size:.8125rem;font-style:italic}.pdf-preview{background:var(--chalk);border-radius:var(--radius-md);padding:var(--space-lg);margin-bottom:var(--space-lg);border:1px solid #1a1a2e0f}.pdf-preview h3{font-family:var(--font-display);margin-bottom:var(--space-lg);font-size:1.25rem;font-weight:400}.pdf-preview__frame{border-radius:var(--radius-sm);background:var(--paper);border:1px solid #1a1a2e14;width:100%;height:500px;overflow:hidden}.pdf-preview__frame iframe{border:none;width:100%;height:100%}.pdf-preview__placeholder{background:var(--paper-warm);border-radius:var(--radius-sm);text-align:center;height:300px;color:var(--ink-muted);border:1px dashed #1a1a2e26;flex-direction:column;justify-content:center;align-items:center;display:flex}.pdf-preview__placeholder p{margin-bottom:var(--space-lg);font-style:italic}.pdf-preview__actions{margin-top:var(--space-lg)}.pdf-preview__actions .btn{width:100%}.exam-info{background:var(--chalk);border-radius:var(--radius-md);padding:var(--space-lg);border:1px solid #1a1a2e0f}.exam-info h3{font-family:var(--font-display);margin-bottom:var(--space-lg);font-size:1.25rem;font-weight:400}.exam-info dl{gap:var(--space-sm)var(--space-lg);grid-template-columns:auto 1fr;display:grid}.exam-info dt{font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-muted);font-size:.6875rem;font-weight:600}.exam-info dd{text-align:right;font-weight:500}.status{font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;border-radius:999px;padding:.375rem .75rem;font-size:.625rem;font-weight:600;display:inline-block}.status--draft{color:var(--gold-dark);background:#c9a22726}.status--generating{color:var(--ink);background:#1a1a2e1a}.status--ready{color:var(--sage);background:#4a7c5926}.status--error{color:var(--crimson);background:#8b263526}.generating-step{padding:var(--space-3xl)var(--space-2xl);flex-direction:column;align-items:center;display:flex}.generating-animation{text-align:center}.generating-animation h2{font-family:var(--font-display);margin:var(--space-xl)0 var(--space-sm);font-size:1.75rem;font-weight:400}.generating-animation>p{color:var(--ink-muted);font-style:italic}.generating-steps{margin-top:var(--space-2xl);text-align:left}.generating-step-item{padding:var(--space-sm)0;color:var(--ink-muted);font-family:var(--font-mono);align-items:center;gap:var(--space-sm);font-size:.8125rem;display:flex}.generating-step-item:before{content:"○";color:var(--ink-muted)}.generating-step-item--active{color:var(--ink)}.generating-step-item--active:before{content:"◉";color:var(--gold)}.generating-step-item--completed{color:var(--sage)}.generating-step-item--completed:before{content:"✓";color:var(--sage)}.spinner{border:2px solid var(--paper-dark);border-top-color:var(--gold);border-radius:50%;width:2.5rem;height:2.5rem;animation:1s linear infinite spin}.spinner--large{border-width:3px;width:4rem;height:4rem}@keyframes spin{to{transform:rotate(360deg)}}.error-banner{color:var(--crimson);padding:var(--space-md)var(--space-lg);border-radius:var(--radius-sm);margin-bottom:var(--space-lg);font-family:var(--font-mono);background:#8b26351a;border:1px solid #8b263533;font-size:.875rem}.upload-error{color:var(--crimson);padding:var(--space-md);border-radius:var(--radius-sm);margin-top:var(--space-md);background:#8b26351a;font-size:.875rem}.step-intro{margin-bottom:var(--space-2xl)}.step-intro h2{font-family:var(--font-display);margin-bottom:var(--space-sm);font-size:1.75rem;font-weight:400}.step-intro p{color:var(--ink-muted);max-width:600px}.step-actions{margin-top:var(--space-2xl);justify-content:flex-end;display:flex}.uploaded-summary{background:var(--paper-warm);padding:var(--space-lg);border-radius:var(--radius-sm);margin-bottom:var(--space-xl);border-left:3px solid var(--gold)}.uploaded-summary strong{font-family:var(--font-mono);letter-spacing:.04em;text-transform:uppercase;color:var(--ink-muted);font-size:.75rem}.uploaded-summary ul{margin:var(--space-sm)0;list-style:none}.uploaded-summary li{padding:var(--space-xs)0;font-size:.9375rem}@media(max-width:1024px){.features__grid{grid-template-columns:repeat(2,1fr)}.exam-editor-page{grid-template-columns:1fr}.exam-editor-page__sidebar{order:-1}}@media(max-width:768px){.app-header__container{gap:var(--space-md);flex-wrap:wrap}.app-header__nav{justify-content:center;gap:var(--space-lg);order:3;width:100%}.app-header__auth{order:2}.hero{padding:var(--space-2xl)var(--space-lg)}.hero h1{font-size:2rem}.hero__cta{flex-direction:column;align-items:center}.features__grid{grid-template-columns:1fr}.steps{gap:var(--space-xl);flex-direction:column}.step__arrow{display:none;transform:rotate(90deg)}.steps-enhanced{gap:var(--space-lg);flex-direction:column}.step-card{max-width:100%}.step-connector{padding:var(--space-sm)0;transform:rotate(90deg)}.how-it-works__subtitle{margin-top:0}.faq{padding:var(--space-2xl)var(--space-lg)}.faq h2{font-size:2rem}.faq__question{padding:var(--space-md)var(--space-lg);font-size:1rem}.faq__answer p{padding:0 var(--space-lg)var(--space-lg)}.final-cta{padding:var(--space-2xl)var(--space-lg)}.final-cta h2{font-size:1.75rem}.form-row,.question-type-grid{grid-template-columns:1fr}.app-footer__container{gap:var(--space-2xl);grid-template-columns:1fr}.app-footer__links{gap:var(--space-xl);grid-template-columns:1fr}.stepper{gap:var(--space-sm);flex-wrap:wrap}.stepper__connector{display:none}}.auth-page{min-height:calc(100vh - 200px);padding:var(--space-2xl);background:var(--grid-pattern);justify-content:center;align-items:center;display:flex}.auth-container{background:var(--chalk);border-radius:var(--radius-lg);width:100%;max-width:420px;padding:var(--space-2xl);box-shadow:var(--shadow-lifted);border:1px solid #1a1a2e14;position:relative}.auth-container:before{content:"";background:var(--gold);border-radius:0 0 var(--radius-sm)var(--radius-sm);width:60px;height:3px;position:absolute;top:0;left:50%;transform:translate(-50%)}.auth-header{text-align:center;margin-bottom:var(--space-2xl)}.auth-header h1{font-family:var(--font-display);color:var(--ink);margin-bottom:var(--space-sm);font-size:2rem;font-weight:400}.auth-header p{color:var(--ink-muted);font-size:.9375rem}.auth-error{color:var(--crimson);padding:var(--space-md);border-radius:var(--radius-sm);margin-bottom:var(--space-lg);text-align:center;background:#8b263514;border:1px solid #8b263533;font-size:.875rem}.auth-form{gap:var(--space-lg);flex-direction:column;display:flex}.auth-form .form-group{margin-bottom:0}.auth-form label{font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-muted);margin-bottom:var(--space-sm);font-size:.6875rem;font-weight:600;display:block}.auth-form input{width:100%;padding:var(--space-md)var(--space-lg);font-family:var(--font-body);border-radius:var(--radius-sm);background:var(--paper);color:var(--ink);border:1px solid #1a1a2e26;font-size:1rem;transition:all .3s}.auth-form input:focus{border-color:var(--gold);outline:none;box-shadow:0 0 0 3px #c9a22726}.auth-form input::placeholder{color:var(--ink-muted);opacity:.6}.auth-divider{margin:var(--space-lg)0;align-items:center;display:flex}.auth-divider:before,.auth-divider:after{content:"";background:#1a1a2e1a;flex:1;height:1px}.auth-divider span{padding:0 var(--space-md);font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-muted);font-size:.75rem}.btn--google{justify-content:center;align-items:center;gap:var(--space-md);background:var(--chalk);width:100%;color:var(--ink);border:1px solid #1a1a2e26;font-weight:500;display:flex}.btn--google:hover{background:var(--paper);border-color:var(--ink-muted)}.btn--google svg{flex-shrink:0}.auth-footer{text-align:center;margin-top:var(--space-xl);padding-top:var(--space-lg);border-top:1px solid #1a1a2e0f}.auth-footer p{color:var(--ink-muted);font-size:.875rem}.auth-footer a{color:var(--gold-dark);font-weight:500;text-decoration:none;transition:color .3s}.auth-footer a:hover{color:var(--gold)}.auth-guest-banner{border-radius:var(--radius-sm);padding:var(--space-md);text-align:center;color:var(--gold-dark);margin-bottom:var(--space-lg);background:linear-gradient(135deg,#c9a2271a,#c9a2270d);border:1px solid #c9a2274d;font-size:.875rem}@media(max-width:480px){.auth-page{padding:var(--space-lg)}.auth-container{padding:var(--space-xl)}.auth-header h1{font-size:1.75rem}}.generating-step{min-height:300px;padding:var(--space-lg);justify-content:center;align-items:flex-start;display:flex}.generating-animation{text-align:center;width:100%;max-width:500px;padding:var(--space-lg);background:var(--chalk);border-radius:var(--radius-lg);box-shadow:var(--shadow-lifted);position:relative;overflow:hidden}.generating-bg{pointer-events:none;position:absolute;inset:0;overflow:hidden}.generating-bg__circle{opacity:.1;border-radius:50%;position:absolute}.generating-bg__circle--1{background:var(--gold);width:300px;height:300px;animation:4s ease-in-out infinite pulse-circle;top:-100px;right:-100px}.generating-bg__circle--2{background:var(--sage);width:200px;height:200px;animation:5s ease-in-out 1s infinite pulse-circle;bottom:-50px;left:-50px}.generating-bg__circle--3{background:var(--ink);width:150px;height:150px;animation:3s ease-in-out .5s infinite pulse-circle;top:50%;left:50%;transform:translate(-50%,-50%)}@keyframes pulse-circle{0%,to{opacity:.1;transform:scale(1)}50%{opacity:.15;transform:scale(1.2)}}.generating-icon{z-index:1;width:64px;height:64px;margin:0 auto var(--space-md);background:linear-gradient(135deg,var(--gold)0%,#d4a84b 100%);border-radius:50%;justify-content:center;align-items:center;animation:2s ease-in-out infinite icon-pulse;display:flex;position:relative;box-shadow:0 4px 16px #c9a2274d}.generating-icon__emoji{font-size:1.75rem;animation:1s ease-in-out infinite icon-bounce}@keyframes icon-pulse{0%,to{box-shadow:0 8px 32px #c9a2274d}50%{box-shadow:0 8px 48px #c9a22780}}@keyframes icon-bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-5px)}}.generating-animation h2{z-index:1;font-family:var(--font-display);color:var(--ink);margin-bottom:var(--space-xs);font-size:1.5rem;font-weight:400;position:relative}.generating-subtitle{z-index:1;color:var(--ink-muted);margin-bottom:var(--space-md);min-height:1.5em;font-size:1rem;position:relative}.generating-progress{z-index:1;width:100%;height:4px;margin-bottom:var(--space-lg);background:#1a1a2e1a;border-radius:2px;position:relative;overflow:hidden}.generating-progress__bar{background:linear-gradient(90deg,var(--gold)0%,var(--sage)100%);border-radius:3px;height:100%;transition:width .5s ease-out;position:relative}.generating-progress__bar:after{content:"";background:linear-gradient(90deg,#0000,#fff6,#0000);animation:1.5s infinite shimmer;position:absolute;inset:0}@keyframes shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}.generating-stages{z-index:1;gap:var(--space-xs);text-align:left;margin-bottom:var(--space-md);flex-direction:column;display:flex;position:relative}.generating-stage{align-items:center;gap:var(--space-sm);padding:var(--space-xs)var(--space-sm);border-radius:var(--radius-sm);transition:all .3s;display:flex}.generating-stage--active{background:#c9a2271a}.generating-stage--completed{opacity:.6}.generating-stage--pending{opacity:.4}.generating-stage__icon{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:22px;height:22px;font-size:.75rem;font-weight:600;display:flex}.generating-stage--completed .generating-stage__icon{background:var(--sage);color:#fff}.generating-stage--active .generating-stage__icon{background:var(--gold);color:#fff}.generating-stage--pending .generating-stage__icon{color:var(--ink-muted);background:#1a1a2e1a}.generating-stage__check{font-size:.875rem}.generating-stage__spinner{border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:16px;height:16px;animation:.8s linear infinite spin}.generating-stage__number{font-family:var(--font-mono);font-size:.75rem}.generating-stage__label{color:var(--ink);font-size:.8125rem}.generating-stage--pending .generating-stage__label{color:var(--ink-muted)}.generating-tip{z-index:1;color:var(--ink-muted);margin-top:var(--space-sm);font-size:.75rem;font-style:italic;position:relative}.pdf-preview{position:relative}.pdf-preview__header{margin-bottom:var(--space-md);justify-content:space-between;align-items:center;display:flex}.pdf-preview__header h3{margin:0}.pdf-preview__expand-btn{border-radius:var(--radius-sm);padding:var(--space-xs)var(--space-sm);cursor:pointer;align-items:center;gap:var(--space-xs);color:var(--ink-muted);background:0 0;border:1px solid #1a1a2e26;font-size:.8125rem;transition:all .2s;display:flex}.pdf-preview__expand-btn:hover{border-color:var(--gold);color:var(--ink);background:#1a1a2e0d}.pdf-preview__expand-icon{font-size:1rem}.pdf-fullscreen-overlay{isolation:isolate;background:#1a1a2efa;flex-direction:column;animation:.2s fade-in;display:flex;position:fixed;z-index:999999!important;width:100vw!important;height:100vh!important;inset:0!important}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.pdf-fullscreen-header{padding:var(--space-md)var(--space-xl);background:#ffffff0d;border-bottom:1px solid #ffffff1a;justify-content:space-between;align-items:center;display:flex}.pdf-fullscreen-header h3{color:#fff;font-family:var(--font-display);margin:0;font-weight:400}.pdf-fullscreen-actions{gap:var(--space-md);display:flex}.pdf-fullscreen-btn{border-radius:var(--radius-sm);padding:var(--space-sm)var(--space-lg);color:#fff;cursor:pointer;align-items:center;gap:var(--space-xs);background:#ffffff1a;border:1px solid #fff3;font-size:.875rem;transition:all .2s;display:flex}.pdf-fullscreen-btn:hover{background:#fff3}.pdf-fullscreen-btn--primary{background:var(--gold);border-color:var(--gold);color:var(--ink)}.pdf-fullscreen-btn--primary:hover{background:#d4a84b}.pdf-fullscreen-btn--close{border-color:var(--crimson);color:#fff;background:#8b2635cc}.pdf-fullscreen-btn--close:hover{background:var(--crimson)}.pdf-fullscreen-content{padding:var(--space-xl);flex:1;justify-content:center;align-items:center;display:flex;overflow:auto}.pdf-fullscreen-content iframe{border-radius:var(--radius-md);border:none;width:100%;max-width:900px;height:100%;box-shadow:0 20px 60px #0006}.form-section--templates{background:var(--paper-warm)}.form-section--templates:before{background:var(--sage)}.templates-list{gap:var(--space-sm);margin-bottom:var(--space-md);flex-wrap:wrap;display:flex}.template-item{border-radius:var(--radius-sm);background:var(--chalk);border:1px solid #1a1a2e1a;align-items:stretch;transition:all .2s;display:flex;overflow:hidden}.template-item:hover{border-color:var(--gold);box-shadow:var(--shadow-soft)}.template-item__load{padding:var(--space-sm)var(--space-md);cursor:pointer;text-align:left;background:0 0;border:none;flex-direction:column;align-items:flex-start;gap:2px;transition:background .2s;display:flex}.template-item__load:hover{background:var(--paper)}.template-item__name{color:var(--ink);font-size:.9rem;font-weight:500}.template-item__info{color:var(--ink-muted);font-size:.75rem}.template-item__delete{cursor:pointer;width:2rem;color:var(--ink-muted);background:0 0;border:none;border-left:1px solid #1a1a2e14;justify-content:center;align-items:center;font-size:1.25rem;transition:all .2s;display:flex}.template-item__delete:hover{color:var(--crimson);background:#8b26351a}.save-template-form{gap:var(--space-sm);flex-wrap:wrap;align-items:center;display:flex}.save-template-form input{min-width:200px;padding:var(--space-sm)var(--space-md);border-radius:var(--radius-sm);font-family:var(--font-body);border:1px solid #1a1a2e1f;flex:1;font-size:.9rem}.save-template-form input:focus{border-color:var(--gold);outline:none;box-shadow:0 0 0 2px #c9a22726}.form-actions{gap:var(--space-md);flex-wrap:wrap;align-items:center;display:flex}.error-banner{justify-content:space-between;align-items:center;gap:var(--space-md);flex-wrap:wrap;display:flex}.error-banner__retry{flex-shrink:0}.upload-error{justify-content:space-between;align-items:center;gap:var(--space-md);color:var(--crimson);padding:var(--space-md)var(--space-lg);border-radius:var(--radius-sm);margin-top:var(--space-md);background:#8b263514;border:1px solid #8b263533;display:flex}@media(max-width:1024px){.exam-editor-page{flex-direction:column}.exam-editor-page__main{width:100%;max-width:none}.exam-editor-page__sidebar{border-top:1px solid #1a1a2e1a;border-left:none;width:100%;height:auto;position:relative;top:auto}.pdf-preview__frame{height:60vh;min-height:400px}}@media(max-width:768px){.form-row,.question-type-grid{grid-template-columns:1fr}.exam-editor__header{gap:var(--space-md);flex-direction:column}.exam-editor__actions{justify-content:stretch;width:100%}.exam-editor__actions .btn{flex:1}.settings-row{flex-wrap:wrap}.setting-group{min-width:45%}.stepper{gap:var(--space-sm);flex-wrap:wrap}.stepper__connector{display:none}.hero__cta{flex-direction:column}.features__grid{grid-template-columns:1fr}.steps{gap:var(--space-lg);flex-direction:column}.step__arrow{transform:rotate(90deg)}.form-actions{flex-direction:column}.form-actions .btn{width:100%}.pdf-preview__frame{height:50vh;min-height:300px}.templates-list{flex-direction:column}.template-item{width:100%}.template-item__load{flex:1}.save-template-form{flex-direction:column;align-items:stretch}.save-template-form input{min-width:auto}}.content-preview-box{margin-top:var(--space-sm);padding:var(--space-md);background:var(--paper-warm);border-radius:var(--radius-sm);border:1px solid #1a1a2e14;font-size:.95rem;line-height:1.6}.content-preview-label{font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-muted);margin-bottom:var(--space-xs);font-size:.65rem;font-weight:600;display:block}.question-card__preview .math-preview{font-size:.9rem;line-height:1.5}.hint{font-family:var(--font-body);color:var(--ink-muted);text-transform:none;letter-spacing:normal;margin-left:var(--space-sm);font-size:.75rem;font-style:italic;font-weight:400}.dashboard-page{padding:var(--space-2xl);max-width:1200px;margin:0 auto}.dashboard-page--loading{justify-content:center;align-items:center;gap:var(--space-md);flex-direction:column;min-height:400px;display:flex}.dashboard-page__header{margin-bottom:var(--space-2xl);justify-content:space-between;align-items:flex-start;display:flex}.dashboard-page__title h1{font-family:var(--font-display);margin-bottom:var(--space-xs);font-size:2rem;font-weight:400}.dashboard-page__subtitle{color:var(--ink-muted);font-size:1rem}.dashboard-page__error{border:1px solid var(--crimson);border-radius:var(--radius-md);padding:var(--space-md);margin-bottom:var(--space-xl);color:var(--crimson);background:#8b26351a}.dashboard-page__empty{padding:var(--space-3xl)0;justify-content:center;display:flex}.empty-state{text-align:center;max-width:400px}.empty-state__icon{margin-bottom:var(--space-lg);font-size:4rem}.empty-state h2{font-family:var(--font-display);margin-bottom:var(--space-sm);font-size:1.5rem}.empty-state p{color:var(--ink-muted);margin-bottom:var(--space-xl)}.dashboard-page__grid{gap:var(--space-xl);grid-template-columns:repeat(auto-fill,minmax(350px,1fr));display:grid}.exam-card{background:var(--chalk);border-radius:var(--radius-md);padding:var(--space-lg);box-shadow:var(--shadow-soft);border:1px solid #1a1a2e14;transition:box-shadow .2s,transform .2s}.exam-card:hover{box-shadow:var(--shadow-lifted);transform:translateY(-2px)}.exam-card__header{margin-bottom:var(--space-sm);justify-content:space-between;align-items:flex-start;display:flex}.exam-card__title{font-family:var(--font-display);padding-right:var(--space-md);flex:1;margin:0;font-size:1.25rem;font-weight:400}.exam-card__course{color:var(--ink-muted);margin-bottom:var(--space-md);font-size:.9375rem}.exam-card__meta{gap:var(--space-lg);font-family:var(--font-mono);color:var(--ink-muted);margin-bottom:var(--space-lg);letter-spacing:.02em;font-size:.75rem;display:flex}.exam-card__footer{padding-top:var(--space-md);border-top:1px solid #1a1a2e0f;justify-content:space-between;align-items:center;display:flex}.exam-card__updated{color:var(--ink-muted);font-size:.75rem}.exam-card__actions{gap:var(--space-sm);display:flex}.status-badge{padding:var(--space-xs)var(--space-sm);font-family:var(--font-mono);letter-spacing:.04em;text-transform:uppercase;border-radius:9999px;align-items:center;font-size:.6875rem;font-weight:500;display:inline-flex}.status-badge--draft{color:var(--ink-muted);background:#1a1a2e14}.status-badge--generating{color:var(--gold-dark);background:#c9a22726;animation:1.5s ease-in-out infinite pulse}.status-badge--ready{color:var(--sage);background:#4a7c5926}.status-badge--error{color:var(--crimson);background:#8b263526}.btn--small{padding:var(--space-xs)var(--space-sm);font-size:.75rem}@media(max-width:768px){.dashboard-page__header{gap:var(--space-md);flex-direction:column}.dashboard-page__grid{grid-template-columns:1fr}}.modal-overlay{z-index:1000;background:#1a1a2e99;justify-content:center;align-items:center;animation:.2s fadeIn;display:flex;position:fixed;inset:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal{background:var(--chalk);border-radius:var(--radius-lg);box-shadow:var(--shadow-dramatic);width:90%;max-width:500px;max-height:90vh;animation:.3s slideUp;overflow:auto}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.modal__header{padding:var(--space-lg);border-bottom:1px solid #1a1a2e14;justify-content:space-between;align-items:center;display:flex}.modal__header h2{font-family:var(--font-display);margin:0;font-size:1.25rem;font-weight:400}.modal__close{color:var(--ink-muted);cursor:pointer;padding:var(--space-xs);background:0 0;border:none;font-size:1.5rem;line-height:1;transition:color .2s}.modal__close:hover{color:var(--ink)}.modal__body{padding:var(--space-lg)}.modal__description{margin-bottom:var(--space-md);color:var(--ink)}.modal__list{padding-left:var(--space-lg);margin-bottom:var(--space-lg);color:var(--ink-muted);list-style:outside}.modal__list li{margin-bottom:var(--space-xs)}.modal__info{background:var(--paper-warm);border-radius:var(--radius-sm);padding:var(--space-md);margin-top:var(--space-md)}.modal__info p{color:var(--ink-muted);margin:0;font-size:.875rem}.modal__footer{justify-content:flex-end;gap:var(--space-sm);padding:var(--space-lg);background:var(--paper-warm);border-top:1px solid #1a1a2e14;display:flex}.modal .form-group{margin-bottom:var(--space-md)}.modal .form-group label{margin-bottom:var(--space-xs);color:var(--ink);font-size:.875rem;font-weight:500;display:block}.modal .form-group select{width:100%;padding:var(--space-sm)var(--space-md);border-radius:var(--radius-sm);background:var(--chalk);border:1px solid #1a1a2e33;font-size:1rem}.modal--confirm{max-width:400px;padding:var(--space-xl)}.modal--confirm h3{font-family:var(--font-display);margin:0 0 var(--space-md)0;color:var(--ink);font-size:1.25rem;font-weight:400}.modal--confirm p{color:var(--ink-muted);margin:0 0 var(--space-lg)0;line-height:1.6}.modal__actions{gap:var(--space-sm);justify-content:flex-end;display:flex}.modal--signup-prompt{max-width:420px;padding:0}.signup-prompt{padding:var(--space-2xl);text-align:center}.signup-prompt__icon{width:64px;height:64px;margin:0 auto var(--space-lg);color:var(--gold-dark);background:linear-gradient(135deg,#c9a22726,#c9a2270d);border-radius:50%;justify-content:center;align-items:center;display:flex}.signup-prompt__title{font-family:var(--font-display);margin:0 0 var(--space-md)0;color:var(--ink);font-size:1.5rem;font-weight:400}.signup-prompt__description{color:var(--ink-muted);margin:0 0 var(--space-lg)0;line-height:1.6}.signup-prompt__benefits{margin:0 0 var(--space-xl)0;text-align:left;padding:0;list-style:none}.signup-prompt__benefits li{margin-bottom:var(--space-sm);color:var(--ink);padding-left:1.5rem;font-size:.9375rem;position:relative}.signup-prompt__benefits li:before{content:"";background:var(--gold);border-radius:50%;width:6px;height:6px;position:absolute;top:.5em;left:0}.signup-prompt__actions{gap:var(--space-md);flex-direction:column;display:flex}.signup-prompt__actions .btn--large{width:100%}.versions-panel{background:var(--chalk);border-radius:var(--radius-md);padding:var(--space-lg);margin-top:var(--space-lg);border:1px solid #1a1a2e14}.versions-panel h3{font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-muted);margin-bottom:var(--space-md);font-size:.6875rem;font-weight:600}.versions-list{gap:var(--space-sm);flex-wrap:wrap;display:flex}.version-link{padding:var(--space-sm)var(--space-md);background:var(--paper-warm);border-radius:var(--radius-sm);font-family:var(--font-mono);color:var(--ink);border:1px solid #1a1a2e1a;align-items:center;font-size:.8125rem;text-decoration:none;transition:all .2s;display:inline-flex}.version-link:hover{background:var(--gold-light);border-color:var(--gold);color:var(--ink)}