:root{--color-primary: #3b82f6;--color-primary-dark: #1d4ed8;--color-secondary: #64748b;--color-accent: #f59e0b;--color-success: #10b981;--color-warning: #f59e0b;--color-error: #ef4444;--color-info: #3b82f6;--color-neutral-50: #f8fafc;--color-neutral-100: #f1f5f9;--color-neutral-200: #e2e8f0;--color-neutral-300: #cbd5e1;--color-neutral-400: #94a3b8;--color-neutral-500: #64748b;--color-neutral-600: #475569;--color-neutral-700: #334155;--color-neutral-800: #1e293b;--color-neutral-900: #0f172a;--font-family-sans: "Instrument Sans", ui-sans-serif, system-ui, sans-serif;--font-family-mono: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;--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-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-tight: 1.25;--line-height-normal: 1.5;--line-height-relaxed: 1.75;--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;--radius-sm: .125rem;--radius-base: .25rem;--radius-md: .375rem;--radius-lg: .5rem;--radius-xl: .75rem;--radius-2xl: 1rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-base: 0 1px 3px 0 rgb(0 0 0 / .1), 0 1px 2px -1px rgb(0 0 0 / .1);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--transition-fast: .15s ease;--transition-base: .2s ease;--transition-slow: .3s ease;--z-dropdown: 1000;--z-sticky: 1020;--z-fixed: 1030;--z-modal: 1040;--z-popover: 1050;--z-tooltip: 1060}*,*:before,*:after{box-sizing:border-box}*{margin:0}html{height:100%}body{height:100%;font-family:var(--font-family-sans);font-size:var(--font-size-base);line-height:var(--line-height-normal);color:var(--color-neutral-900);background-color:var(--color-neutral-50);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}img,picture,video,canvas,svg{display:block;max-width:100%}input,button,textarea,select{font:inherit}p,h1,h2,h3,h4,h5,h6{overflow-wrap:break-word}#root,#__next{isolation:isolate}.grid-layout{--grid-gap: var(--space-5, 1.5rem);display:grid;gap:var(--grid-gap)}.grid-layout:not([data-from-breakpoint]),.grid-layout[data-from-breakpoint=""]{grid-template-columns:var(--cols, repeat(1, minmax(0, 1fr)))}.grid-layout[data-from-breakpoint=sm],.grid-layout[data-from-breakpoint=md],.grid-layout[data-from-breakpoint=lg],.grid-layout[data-from-breakpoint=xl]{grid-template-columns:repeat(1,minmax(0,1fr))}@media (min-width: 640px){.grid-layout[data-from-breakpoint=sm]{grid-template-columns:var(--cols, repeat(1, minmax(0, 1fr)))}}@media (min-width: 768px){.grid-layout[data-from-breakpoint=md]{grid-template-columns:var(--cols, repeat(1, minmax(0, 1fr)))}}@media (min-width: 1024px){.grid-layout[data-from-breakpoint=lg]{grid-template-columns:var(--cols, repeat(1, minmax(0, 1fr)))}}@media (min-width: 1280px){.grid-layout[data-from-breakpoint=xl]{grid-template-columns:var(--cols, repeat(1, minmax(0, 1fr)))}}.grid-layout-col{grid-column:var(--col-span, auto);display:flex;flex-direction:column;gap:var(--space-4, 1rem)}.lesson-image-wrapper{position:relative;display:block;border-radius:var(--radius-lg, .75rem);overflow:hidden;cursor:pointer}.lesson-image-wrapper img{display:block;width:100%;height:auto;border-radius:inherit;transition:transform var(--transition-base, .15s ease-in-out),filter var(--transition-base, .15s ease-in-out)}.lesson-image-wrapper .lesson-image-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;text-align:center;padding:var(--space-4, 1rem);color:#fff;background:linear-gradient(180deg,#0f172a40,#0f172abf);opacity:0;pointer-events:none;transition:opacity var(--transition-base, .15s ease-in-out);font-weight:var(--font-weight-semibold, 600);font-size:clamp(1rem,2.5vw,1.4rem);line-height:1.4}.lesson-image-wrapper:hover img,.lesson-image-wrapper:focus-within img,.lesson-image-wrapper.is-overlay-visible img{transform:scale(1.02);filter:brightness(.85)}.lesson-image-wrapper:hover .lesson-image-overlay,.lesson-image-wrapper:focus-within .lesson-image-overlay,.lesson-image-wrapper.is-overlay-visible .lesson-image-overlay{opacity:1}.lesson-image-wrapper:focus-within{outline:2px solid rgba(59,130,246,.5);outline-offset:3px}:root{color-scheme:light;--navbar-height: 4rem}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.navbar{position:fixed;top:var(--space-4);right:var(--space-4);z-index:var(--z-sticky)}.navbar__toggle{width:2.75rem;height:2.75rem;border-radius:var(--radius-full);border:none;background:#0f172a47;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:border-color var(--transition-base),box-shadow var(--transition-base),transform var(--transition-base)}.navbar__toggle:hover,.navbar__toggle:focus-visible{transform:translateY(-2px)}.navbar__hamburger,.navbar__hamburger:before,.navbar__hamburger:after{display:block;width:18px;height:2px;border-radius:999px;background:var(--color-neutral-800);position:relative;transition:transform var(--transition-base),opacity var(--transition-base)}.navbar__hamburger:before,.navbar__hamburger:after{content:"";position:absolute;left:0}.navbar__hamburger:before{transform:translateY(-6px)}.navbar__hamburger:after{transform:translateY(6px)}.navbar__hamburger--open{background:transparent}.navbar__hamburger--open:before{transform:translateY(0) rotate(45deg)}.navbar__hamburger--open:after{transform:translateY(0) rotate(-45deg)}.navbar__panel{position:fixed;inset:0;display:flex;align-items:flex-start;justify-content:flex-end;pointer-events:none;opacity:0;transition:opacity var(--transition-base)}.navbar__panel--open{opacity:1;pointer-events:auto}.navbar__backdrop{position:absolute;inset:0;border:none;background:transparent}.navbar__sheet{position:relative;margin-top:calc(var(--space-4) + var(--navbar-height));margin-right:var(--space-4);width:min(92vw,360px);background:#fff;border-radius:var(--radius-2xl);box-shadow:var(--shadow-xl);padding:var(--space-5);display:grid;gap:var(--space-4)}.navbar__section{display:grid;gap:var(--space-4)}.navbar__section+.navbar__section{padding-top:var(--space-4);border-top:1px solid var(--color-neutral-200)}.navbar__section-title{font-size:var(--font-size-sm);letter-spacing:.08em;text-transform:uppercase;color:var(--color-neutral-500)}.navbar__label{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-neutral-700)}.navbar__select{width:100%;padding:.6rem .85rem;border-radius:var(--radius-lg);border:1px solid var(--color-neutral-200);background:#fff;font-size:var(--font-size-sm);color:var(--color-neutral-800);transition:border-color var(--transition-base),box-shadow var(--transition-base)}.navbar__select:focus-visible{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #3b82f62e}.navbar__empty{font-size:var(--font-size-sm);color:var(--color-neutral-500)}.navbar__account{display:grid;grid-template-columns:auto 1fr;gap:var(--space-3);align-items:center}.navbar__avatar{width:2.5rem;height:2.5rem;border-radius:var(--radius-full);background:var(--color-neutral-800);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:var(--font-weight-semibold)}.navbar__account-details{display:grid;gap:.15rem}.navbar__account-name{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-neutral-900)}.navbar__account-email{font-size:var(--font-size-xs);color:var(--color-neutral-500)}.navbar__actions{display:grid;gap:var(--space-3)}.navbar__action{width:100%;justify-content:center}.navbar__close{border:none;background:none;color:var(--color-neutral-500);font-size:var(--font-size-sm);justify-self:center;cursor:pointer;transition:color var(--transition-base)}.navbar__close:hover,.navbar__close:focus-visible{color:var(--color-neutral-800)}@media (max-width: 640px){.navbar__inner{padding:var(--space-3) var(--space-2)}}.container{width:min(92vw,960px);margin:4rem auto;background-color:#fff;border-radius:var(--radius-2xl);box-shadow:var(--shadow-xl);padding:clamp(2rem,3vw,3rem)}.header{position:relative;margin-bottom:30px}.header__eyebrow{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-primary);text-transform:uppercase;letter-spacing:.08em}.header__title{font-size:clamp(1.75rem,3vw,2.5rem);font-weight:var(--font-weight-bold);color:var(--color-neutral-900);line-height:1;margin:0}.header__headline{display:flex;align-items:center;gap:var(--space-3);flex-wrap:wrap;margin-top:var(--space-2);justify-content:space-between}.header__logo{flex-shrink:0;height:auto;position:absolute;right:0}.header__description{margin-top:var(--space-3);font-size:var(--font-size-base);color:var(--color-neutral-600);max-width:60ch}.progress{display:flex;justify-content:space-between;align-items:center;font-size:var(--font-size-sm);color:var(--color-neutral-500);margin-bottom:var(--space-6)}.progress__bar{position:relative;height:4px;background:var(--color-neutral-200);border-radius:999px;overflow:hidden;margin-top:var(--space-2);margin-bottom:var(--space-2)}.progress__bar-fill{position:absolute;inset:0;width:var(--progress, 0%);background:linear-gradient(90deg,var(--color-primary),var(--color-primary-dark));transition:width var(--transition-base)}.lesson-sidebar .progress{margin-bottom:var(--space-3);font-size:var(--font-size-xs);color:var(--color-neutral-600)}.lesson-sidebar .progress__bar{margin-bottom:var(--space-4)}.lesson-sidebar__cta{width:100%;justify-content:center}.lesson-shell{width:min(94vw,1200px);margin:0 auto;display:grid;grid-template-columns:minmax(240px,280px) minmax(0,1fr);gap:clamp(1.5rem,4vw,3rem);align-items:start;padding:20px 0}.lesson-sidebar{background-color:var(--color-neutral-5);border:1px solid var(--color-neutral-200);border-radius:var(--radius-xl);padding:clamp(1.25rem,1rem,1.75rem);position:sticky;top:0;box-shadow:var(--shadow-sm);display:grid;gap:var(--space-4)}.lesson-sidebar__header{display:flex;justify-content:space-between;align-items:center;gap:var(--space-3)}.lesson-sidebar__title{font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);color:var(--color-neutral-800)}.lesson-sidebar__meta{font-size:var(--font-size-xs);text-transform:uppercase;letter-spacing:.08em;color:var(--color-neutral-500)}.lesson-sidebar__empty{font-size:var(--font-size-sm);color:var(--color-neutral-500);margin:0}.lesson-sidebar__list{display:grid;gap:var(--space-1);margin:0;padding:0;list-style:none}.lesson-sidebar__item{margin:0}.lesson-sidebar__link{width:100%;border:1px solid transparent;border-radius:var(--radius-lg);background-color:transparent;padding:.65rem .5rem;display:flex;align-items:center;gap:var(--space-3);font-size:var(--font-size-sm);color:var(--color-neutral-600);cursor:pointer;transition:border-color var(--transition-base),background-color var(--transition-base),color var(--transition-base),transform var(--transition-fast)}.lesson-sidebar__link:hover:not(:disabled),.lesson-sidebar__link:focus-visible{border-color:var(--color-primary);background-color:#3b82f614;color:var(--color-primary-dark);outline:none}.lesson-sidebar__link--active{border-color:var(--color-primary);background:linear-gradient(135deg,#3b82f61a,#3b82f62e);color:var(--color-primary-dark);font-weight:var(--font-weight-medium)}.lesson-sidebar__link:disabled{cursor:default}.lesson-sidebar__badge{display:inline-flex;align-items:center;justify-content:center;width:2rem;height:2rem;border-radius:var(--radius-full);background:#3b82f629;color:var(--color-primary-dark);font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold)}.lesson-sidebar__label{flex:1;text-align:left;color:inherit;line-height:var(--line-height-normal)}.lesson-sidebar__link:has(+.lesson-sidebar__sublist) .lesson-sidebar__label{font-weight:var(--font-weight-semibold)}.lesson-sidebar__pagination{margin-top:var(--space-4);display:flex;align-items:center;justify-content:space-between;gap:var(--space-3)}.lesson-sidebar__pagination-meta{font-size:var(--font-size-sm);color:var(--color-neutral-600)}.lesson-sidebar__heading{display:block;font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-neutral-700);padding:.4rem .2rem}.lesson-sidebar__heading--active{color:var(--color-primary-dark)}.lesson-sidebar__sublist{list-style:none;margin:var(--space-2) 0 var(--space-2) var(--space-2);padding:0;display:grid;gap:var(--space-2)}.lesson-sidebar__link--child{padding-left:.85rem}.lesson-sidebar__link--child .lesson-sidebar__badge{background:#3b82f61f}.lesson-shell__content{display:block}.lesson-container{margin:0;width:100%}.lesson-main{display:grid;gap:var(--space-6)}.lesson-card{border:1px solid var(--color-neutral-200);border-radius:var(--radius-xl);padding:clamp(1.5rem,4vw,2rem);background-color:#fff;box-shadow:var(--shadow-md);margin-bottom:var(--space-6);display:grid;gap:var(--space-4)}.lesson-card__title{font-size:clamp(1.2rem,2.8vw,1.75rem);font-weight:var(--font-weight-semibold);color:var(--color-neutral-900)}.lesson-card__content{display:grid;gap:var(--space-4);color:var(--color-neutral-700);font-size:var(--font-size-base);line-height:var(--line-height-relaxed)}.lesson-block,.lesson-block__text{display:grid;gap:var(--space-3)}.lesson-block__media{margin:0}.lesson-block--code,.lesson-block__code{border-radius:var(--radius-lg);border:1px solid rgba(15,23,42,.18);background:#0f172a;color:#e2e8f0;overflow:hidden}.lesson-block__code pre{margin:0;padding:var(--space-4);overflow-x:auto;font-family:var(--font-family-mono);font-size:var(--font-size-sm);line-height:1.6}.lesson-block__code code{display:block;white-space:pre}.lesson-block__caption{margin-top:var(--space-2);font-size:var(--font-size-sm);color:var(--color-neutral-600);text-align:center}.lesson-block__media img{display:block;width:auto;max-width:min(100%,200px);height:auto;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.lesson-block--image .lesson-block__media img{max-width:100%}.lesson-accordion{display:grid;gap:var(--space-3)}.lesson-accordion__item{border:1px solid var(--color-neutral-200);border-radius:var(--radius-lg);background-color:#fff;box-shadow:var(--shadow-sm);overflow:hidden}.lesson-accordion__summary{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);padding:var(--space-3) var(--space-4);font-weight:var(--font-weight-semibold);font-size:var(--font-size-base);cursor:pointer;list-style:none}.lesson-accordion__summary::-webkit-details-marker{display:none}.lesson-accordion__summary:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.lesson-accordion__summary-text{flex:1 1 auto;max-width:90%}.lesson-accordion__icon{display:inline-flex;align-items:center;justify-content:center;width:1.5rem;height:1.5rem;border-radius:var(--radius-full);background-color:var(--color-primary);color:#fff;font-size:.875rem;line-height:1;transition:transform var(--transition-base),background-color var(--transition-base)}.lesson-accordion__icon:before{content:"+";font-weight:var(--font-weight-bold)}.lesson-accordion__item[open] .lesson-accordion__icon{transform:rotate(45deg);background-color:var(--color-primary-dark)}.lesson-accordion__content{padding:0 var(--space-4) var(--space-4);color:var(--color-neutral-700);line-height:var(--line-height-relaxed);display:grid;gap:var(--space-3)}.lesson-block--text_image,.lesson-block--image_text{display:flex;flex-direction:column;gap:var(--space-3)}@media (min-width: 768px){.lesson-block--text_image,.lesson-block--image_text{flex-direction:row;align-items:flex-start;gap:var(--space-5)}.lesson-block--text_image .lesson-block__text,.lesson-block--text_image .lesson-block__media,.lesson-block--image_text .lesson-block__text,.lesson-block--image_text .lesson-block__media{flex:1 1 0}.lesson-block--text_image.lesson-block--ratio-1-3_2-3 .lesson-block__text,.lesson-block--image_text.lesson-block--ratio-2-3_1-3 .lesson-block__text{flex:0 1 33.333%;max-width:33.333%}.lesson-block--text_image.lesson-block--ratio-1-3_2-3 .lesson-block__media--trailing,.lesson-block--image_text.lesson-block--ratio-2-3_1-3 .lesson-block__media--leading{flex:0 1 66.667%;max-width:66.667%}.lesson-block--text_image.lesson-block--ratio-1-2_1-2 .lesson-block__text,.lesson-block--text_image.lesson-block--ratio-1-2_1-2 .lesson-block__media--trailing,.lesson-block--image_text.lesson-block--ratio-1-2_1-2 .lesson-block__text,.lesson-block--image_text.lesson-block--ratio-1-2_1-2 .lesson-block__media--leading{flex:0 1 50%;max-width:50%}.lesson-block--text_image.lesson-block--ratio-2-3_1-3 .lesson-block__text,.lesson-block--image_text.lesson-block--ratio-1-3_2-3 .lesson-block__text{flex:0 1 66.667%;max-width:66.667%}.lesson-block--text_image.lesson-block--ratio-2-3_1-3 .lesson-block__media--trailing,.lesson-block--image_text.lesson-block--ratio-1-3_2-3 .lesson-block__media--leading{flex:0 1 33.333%;max-width:33.333%}}.lesson-card__content p{margin:0}.lesson-card__content ul,.lesson-card__content ol{padding-left:1.25rem;display:grid;gap:.5rem}.lesson-card__content a{color:var(--color-primary);text-decoration:underline;text-decoration-thickness:2px;text-decoration-color:#3b82f659}.lesson-card__content blockquote{border-left:4px solid rgba(59,130,246,.25);padding-left:var(--space-4);color:var(--color-neutral-600);font-style:italic}@media (max-width: 900px){.lesson-shell{grid-template-columns:1fr}.lesson-shell__content{order:-1}.lesson-sidebar{position:static}}.question-card{border:1px solid var(--color-neutral-200);border-radius:var(--radius-xl);padding:clamp(1.5rem,4vw,2rem);background-color:#fff;box-shadow:var(--shadow-md);margin-bottom:var(--space-6)}.question-card__prompt{font-size:clamp(1.1rem,2.5vw,1.5rem);font-weight:var(--font-weight-semibold);color:var(--color-neutral-900)}.answers{margin-top:var(--space-5);display:grid;gap:var(--space-3)}.answer-button{width:100%;text-align:left;background:#fff;border:1px solid var(--color-neutral-200);border-radius:var(--radius-lg);padding:.85rem 1.1rem;font-size:var(--font-size-base);color:var(--color-neutral-700);transition:border-color var(--transition-base),background-color var(--transition-base),color var(--transition-base),transform var(--transition-base);cursor:pointer}.answer-button:hover,.answer-button:focus-visible{border-color:var(--color-primary);background-color:#3b82f614;outline:none;transform:translateY(-1px)}.answer-button--selected{border-color:var(--color-primary);background-color:#3b82f61f;color:var(--color-primary-dark);font-weight:var(--font-weight-medium);box-shadow:0 0 0 1px #3b82f640}.actions{display:flex;justify-content:space-between;align-items:center;margin-top:var(--space-6)}.button{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;padding:.65rem 1.1rem;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);border-radius:var(--radius-lg);border:1px solid transparent;cursor:pointer;transition:background-color var(--transition-base),color var(--transition-base),border-color var(--transition-base),transform var(--transition-fast)}.button:disabled{cursor:not-allowed;opacity:.5;transform:none}.button--ghost{border-color:var(--color-neutral-200);color:var(--color-neutral-600);background-color:#fff}.button--ghost:hover:not(:disabled){background-color:var(--color-neutral-100)}.button--primary{background:linear-gradient(90deg,var(--color-primary),var(--color-primary-dark));color:#fff;border:none;box-shadow:var(--shadow-sm)}.button--primary:hover:not(:disabled){transform:translateY(-1px)}.badge-notice{margin-top:var(--space-6);padding:1rem;border-radius:var(--radius-lg);border:1px solid rgba(16,185,129,.25);background-color:#10b9811f;color:var(--color-success);font-size:var(--font-size-sm)}.empty-state{border:1px dashed var(--color-neutral-300);border-radius:var(--radius-lg);background-color:var(--color-neutral-100);padding:var(--space-6);text-align:center;color:var(--color-neutral-500);font-size:var(--font-size-sm)}.profile-attempts{list-style:none;padding:0;margin:var(--space-5) 0 0;display:grid;gap:var(--space-3)}.profile-attempts__item{margin:0}.profile-attempts__link{display:block;border:1px solid var(--color-neutral-200);border-radius:var(--radius-lg);padding:var(--space-4);background:#fff;color:inherit;text-decoration:none;box-shadow:var(--shadow-base);transition:transform var(--transition-base),box-shadow var(--transition-base),border-color var(--transition-base)}.profile-attempts__link:hover,.profile-attempts__link:focus-visible{transform:translateY(-1px);box-shadow:var(--shadow-md);border-color:var(--color-primary);outline:none}.profile-attempts__header{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2)}.profile-attempts__course{font-weight:var(--font-weight-semibold);color:var(--color-neutral-800)}.profile-attempts__status{font-size:var(--font-size-xs);text-transform:uppercase;letter-spacing:.06em;padding:.25rem .6rem;border-radius:var(--radius-full);font-weight:var(--font-weight-medium)}.profile-attempts__status--success{background:#10b98126;color:#047857}.profile-attempts__status--pending{background:#ef44441f;color:#b91c1c}.profile-attempts__meta{margin-top:var(--space-3);display:flex;flex-wrap:wrap;gap:var(--space-4);font-size:var(--font-size-sm);color:var(--color-neutral-600)}.profile-attempts__label{display:block;font-size:var(--font-size-xs);text-transform:uppercase;letter-spacing:.06em;color:var(--color-neutral-500)}.profile-attempts__value{font-weight:var(--font-weight-medium);color:var(--color-neutral-700)}.course-result{padding-bottom:var(--space-12)}.result-actions{margin:var(--space-4) 0 var(--space-6);display:flex;gap:var(--space-3);flex-wrap:wrap;align-items:center;justify-content:space-between}.result-summary{display:grid;gap:var(--space-3);grid-template-columns:repeat(auto-fit,minmax(180px,1fr));margin-bottom:var(--space-8)}.result-summary__item{background:#fff;border:1px solid var(--color-neutral-200);border-radius:var(--radius-lg);padding:var(--space-4);box-shadow:var(--shadow-base);display:grid;gap:var(--space-2)}.result-summary__label{font-size:var(--font-size-xs);text-transform:uppercase;letter-spacing:.08em;color:var(--color-neutral-500)}.result-summary__value{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-neutral-800)}.result-summary__value--pass{color:#047857}.result-summary__value--fail{color:#b91c1c}.result-summary__hint{font-size:var(--font-size-sm);color:var(--color-neutral-600)}.result-questions{display:grid;gap:var(--space-6)}.result-question__header{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-4)}.result-question__number{font-size:var(--font-size-sm);text-transform:uppercase;letter-spacing:.08em;color:var(--color-neutral-500);margin:0 0 var(--space-2)}.result-question__status{font-size:var(--font-size-xs);text-transform:uppercase;letter-spacing:.08em;padding:.3rem .7rem;border-radius:var(--radius-full);font-weight:var(--font-weight-medium)}.result-question__status--correct{background:#10b98126;color:#047857}.result-question__status--incorrect{background:#ef444426;color:#b91c1c}.answers--readonly{margin-top:var(--space-4)}.answer-button--readonly{cursor:default;pointer-events:none}.answer-button--readonly:hover,.answer-button--readonly:focus-visible{border-color:var(--color-neutral-200);background-color:#fff;color:var(--color-neutral-700);transform:none}.answer-button--chosen{border-width:2px;box-shadow:var(--shadow-sm)}.answer-button--correct{border-color:#10b9818c;background-color:#10b9811f;color:#047857}.answer-button--incorrect{border-color:#ef44448c;background-color:#ef44441f;color:#b91c1c}.answer-button__tags{display:flex;gap:var(--space-2);margin-bottom:var(--space-2)}.answer-badge{font-size:var(--font-size-xs);text-transform:uppercase;letter-spacing:.06em;font-weight:var(--font-weight-medium);padding:.2rem .55rem;border-radius:var(--radius-full)}.answer-badge--selected{background:#3b82f626;color:var(--color-primary-dark)}.answer-badge--correct{background:#10b98126;color:#047857}.answer-badge--incorrect{background:#ef444426;color:#b91c1c}.answer-button__media{margin-top:var(--space-3)}.answer-button__media img{max-width:100%;border-radius:var(--radius-md)}.result-question__feedback{margin-top:var(--space-4);padding:var(--space-4);border-radius:var(--radius-lg);background:#3b82f614;color:var(--color-neutral-700);font-size:var(--font-size-sm);border:1px solid rgba(59,130,246,.2)}.auth-layout{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(180deg,var(--color-neutral-50),#f8fafc);padding:clamp(2rem,6vw,4rem)}.auth-card{width:min(480px,100%);background:#fff;border-radius:var(--radius-2xl);box-shadow:var(--shadow-xl);padding:clamp(2.5rem,6vw,3rem)}.auth-card__header{margin-bottom:var(--space-6)}.auth-card__eyebrow{font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);text-transform:uppercase;letter-spacing:.08em;color:var(--color-primary)}.auth-card__title{margin-top:var(--space-2);font-size:clamp(1.75rem,3vw,2.25rem);font-weight:var(--font-weight-bold);color:var(--color-neutral-900)}.auth-card__subtitle{margin-top:var(--space-3);color:var(--color-neutral-600);font-size:var(--font-size-sm);line-height:1.6}.language-hints{list-style:none;margin-bottom:var(--space-5);padding:var(--space-3);border-radius:var(--radius-2xl);border:1px dashed var(--color-neutral-200);background-color:var(--color-neutral-50);color:var(--color-neutral-500);font-size:var(--font-size-xs);line-height:1.5;display:grid;gap:var(--space-1)}.language-hints li{display:flex;align-items:center;gap:var(--space-2)}.form{display:grid;gap:var(--space-5)}.form__field{display:grid;gap:var(--space-2)}.form__label{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-neutral-700)}.form__input{width:100%;padding:.75rem .9rem;border-radius:var(--radius-lg);border:1px solid var(--color-neutral-200);background-color:#fff;font-size:var(--font-size-base);color:var(--color-neutral-800);transition:border-color var(--transition-base),box-shadow var(--transition-base)}.form__input[readonly]{background-color:var(--color-neutral-100);color:var(--color-neutral-600);cursor:not-allowed}.form__input:focus-visible{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #3b82f62e}.form__input--error{border-color:var(--color-error)}.form__error{font-size:var(--font-size-sm);color:var(--color-error)}.form__options{display:flex;justify-content:space-between;align-items:center;font-size:var(--font-size-sm);color:var(--color-neutral-600)}.checkbox{display:inline-flex;align-items:center;gap:.5rem;cursor:pointer}.checkbox input{width:16px;height:16px;border:1px solid var(--color-neutral-300);border-radius:4px;accent-color:var(--color-primary)}.form__actions{margin-top:var(--space-2)}.profile-tabs{display:inline-flex;gap:var(--space-2);border-bottom:1px solid var(--color-neutral-200);margin-top:var(--space-5);margin-bottom:var(--space-4)}.profile-tabs__button{border:none;background:transparent;padding:.65rem .9rem;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-neutral-500);border-bottom:3px solid transparent;border-radius:0;cursor:pointer;transition:color var(--transition-base),border-color var(--transition-base)}.profile-tabs__button:hover:not([aria-selected=true]){color:var(--color-neutral-700)}.profile-tabs__button[aria-selected=true]{color:var(--color-primary);border-bottom-color:var(--color-primary)}.profile-tabs__button:focus-visible{outline:2px solid rgba(59,130,246,.35);outline-offset:2px;color:var(--color-primary);border-bottom-color:var(--color-primary)}.alert{border-radius:var(--radius-lg);padding:.85rem 1rem;font-size:var(--font-size-sm);display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:var(--space-5);cursor:default}.alert--success{background-color:#22c55e1f;color:var(--color-success);border:1px solid rgba(34,197,94,.3)}.alert--info{background-color:#3b82f61f;color:var(--color-info);border:1px solid rgba(59,130,246,.3);flex-direction:column;align-items:flex-start}.impersonation-banner{background-color:#3b82f61f;border-bottom:1px solid rgba(59,130,246,.3);color:var(--color-info);padding:.75rem 1rem}.impersonation-banner__content{max-width:960px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:1rem;font-size:var(--font-size-sm)}.impersonation-banner__button{font-size:var(--font-size-sm);padding-inline:1rem}.alert--error{background-color:#ef44441f;color:var(--color-error);border:1px solid rgba(239,68,68,.3);flex-direction:column;align-items:flex-start}.alert--clickable{cursor:pointer}.auth-card__footer{margin-top:var(--space-5);text-align:center;font-size:var(--font-size-sm);color:var(--color-neutral-600)}.link{color:var(--color-primary);font-weight:var(--font-weight-medium);text-decoration:none}.link:hover,.link:focus-visible{text-decoration:underline}@media (max-width: 600px){.container{margin:2rem auto;padding:1.75rem}.actions{flex-direction:column;gap:1rem;align-items:stretch}.button{width:100%}}