:root{--avatar-bg: linear-gradient(140deg, #60a5fa, #2563eb 60%, #1e3a8a);--avatar-ink: #ffffff;--avatar-shine: inset 0 1px 0 rgb(255 255 255 / 30%);--activity-correct-ring: rgb(45 212 167 / 20%);--activity-incorrect-ring: rgb(242 85 90 / 20%);--activity-lottie-ground: rgb(0 0 0 / 30%);--goal-ground: rgb(8 20 40 / 45%);--goal-edge: rgb(125 211 252 / 16%);--goal-wire: rgb(220 235 255 / 30%);--goal-ink: rgb(220 235 255 / 80%);--goal-gate: rgb(220 235 255 / 55%);--goal-meter: rgb(8 20 40 / 60%);--goal-meter-edge: rgb(125 211 252 / 35%);--goal-white: #fff;--goal-dim: rgb(220 235 255 / 70%);--art-feature-wire: #5a6e94;--art-feature-ph: #a78bfa;--art-feature-sheet: #0f2447;--art-feature-tx3: #c7daf2;--plate: #f6fafe;--resume-bg: radial-gradient(120% 140% at 100% 0%, #3b82f6 0%, #1e40af 38%, #0b1f3a 78%);--resume-glow: radial-gradient(420px 280px at 82% 45%, rgb(147 197 253 / 32%), transparent 70%);--resume-ink: #ffffff;--resume-ink-soft: rgb(255 255 255 / 72%);--resume-track: rgb(255 255 255 / 18%);--resume-fill: #ffffff;--resume-pill-bg: rgb(255 255 255 / 14%);--resume-pill-shine: inset 0 1px 0 rgb(255 255 255 / 20%);--resume-primary-bg: #ffffff;--resume-primary-hover: #eaf2ff;--resume-primary-ink: #0b1f3a;--resume-primary-shadow: 0 8px 24px -6px rgb(0 0 0 / 40%);--resume-glass-bg: rgb(255 255 255 / 14%);--resume-glass-shadow: inset 0 1px 0 rgb(255 255 255 / 25%), 0 0 0 1px rgb(255 255 255 / 15%);--resume-sphere-shell: #9cc5ff;--resume-sphere-wire: #b9cbe4;--resume-sphere-acc: #ffffff;--resume-sphere-acc2: #dcebff;--resume-sphere-ok: #67e8f9;--resume-sphere-glow: .9;--resume-sphere-tx2: #eaf3ff;--resume-sphere-tx3: #c7daf2;--resume-sphere-surface-rgb: 16, 42, 92;--resume-sphere-ground-rgb: 11, 31, 58;--resume-sphere-ket-ink: #fff;--resume-sphere-ket-bg: rgb(11 31 58 / 55%);--resume-sphere-ket-shadow: 0 0 0 1px rgb(191 219 254 / 28%);--resume-sphere-axis-ink: #c7daf2;--resume-sphere-label-scale: .62;--resume-sphere-svg-hi: rgb(147 197 253 / 30%);--resume-sphere-svg-mid: rgb(37 99 235 / 16%);--resume-sphere-svg-lo: rgb(11 31 58 / 5%);--resume-sphere-svg-rim: rgb(191 219 254 / 55%);--resume-sphere-svg-grid: rgb(191 219 254 / 18%);--resume-sphere-svg-main: rgb(191 219 254 / 45%);--resume-sphere-svg-axis: rgb(191 219 254 / 50%);--resume-sphere-svg-ink: rgb(219 234 254 / 80%);--resume-sphere-svg-vec: #93c5fd;--resume-sphere-svg-line: rgb(191 219 254 / 35%);--accline: color-mix(in srgb, var(--acc) 36%, transparent);--errsoft: var(--badsoft);--elev1: var(--shadow-2);--shadow: var(--shadow-3);--ovl1: var(--fill);--ovl2: var(--fill2);--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 1.875rem;--text-4xl: 2.25rem;--text-5xl: 3rem;--text-6xl: 3.75rem;--font-light: 300;--font-normal: 400;--font-medium: 500;--font-semibold: 600;--font-bold: 700;--leading-none: 1;--leading-tight: 1.1;--leading-snug: 1.375;--leading-normal: 1.5;--leading-relaxed: 1.625;--leading-prose: 1.7;--spacing-0: 0;--spacing-1: .25rem;--spacing-2: .5rem;--spacing-3: .75rem;--spacing-4: 1rem;--spacing-5: 1.25rem;--spacing-6: 1.5rem;--spacing-8: 2rem;--spacing-10: 2.5rem;--spacing-12: 3rem;--spacing-14: 3.5rem;--spacing-16: 4rem;--spacing-20: 5rem;--spacing-24: 6rem;--radius-sm: 6px;--radius-md: 9px;--radius-lg: 11px;--radius-xl: 14px;--radius-2xl: 18px;--radius-full: 9999px;--shadow-sm: var(--shadow-1);--shadow-md: var(--elev1);--shadow-lg: var(--elev1);--shadow-xl: var(--shadow);--shadow-card-hover: var(--elev1);--transition-fast: .12s ease-out;--transition-normal: .12s ease-out;--transition-slow: .2s ease-out;--transition-transform: transform .2s ease-out;--z-base: 0;--z-dropdown: 10;--z-sticky: 20;--z-fixed: 30;--z-popover: 60;--z-tooltip: 70;--z-navbar: 100;--z-modal-backdrop: 110;--z-modal: 120;--container-sm: 640px;--container-md: 768px;--container-lg: 1024px;--container-xl: 1200px;--container-2xl: 1440px;--content-max: 1180px;--gutter: var(--spacing-10);--topbar-height: 64px;--sidebar-width: 256px;--measure: 62ch;--focus-width: 2px;--focus-offset: 3px}@media(max-width:960px){:root{--sidebar-width: 0px}}:root,:root[data-theme=light]{--inset: var(--surf3);--canvas: var(--bg2);--acc-rgb: 37, 99, 235;--navlift: 0 1px 3px rgb(11 31 58 / 8%), 0 0 0 .5px var(--line);--lab-sphere-shell: #cfe3ff;--lab-sphere-wire: #7a89a3;--lab-sphere-acc: #2563eb;--lab-sphere-acc2: #60a5fa;--lab-sphere-ok: #38bdf8;--lab-sphere-glow: .6;--lab-sphere-tx2: #3a4c66;--lab-sphere-tx3: #64748b;--lab-sphere-surface-rgb: 255, 255, 255;--lab-sphere-ground-rgb: 247, 249, 252;--lab-sphere-ket-ink: #0b1f3a;--lab-sphere-ket-bg: rgb(255 255 255 / 88%);--lab-sphere-ket-shadow: 0 0 0 1px rgb(11 31 58 / 12%), 0 2px 6px -2px rgb(11 31 58 / 14%);--lab-sphere-axis-ink: #56657a;--lab-stage-surface-rgb: 255, 255, 255;--lab-stage-ground-rgb: 247, 249, 252;--ob-panel: #fff;--ob-shadow: #0b1f3a;--ob-glow: #2358de;--ob-sphere-hi: rgb(255 255 255 / 95%);--ob-sphere-mid: rgb(234 247 255 / 55%);--ob-sphere-lo: rgb(96 165 250 / 18%);--ob-sphere-rim: rgb(11 31 58 / 24%);--ob-sphere-grid: rgb(11 31 58 / 14%);--ob-sphere-main: rgb(11 31 58 / 24%);--ob-sphere-axis: #94a3b8;--ob-sphere-ink: #56657a;--ob-sphere-vec: #2563eb;--ob-sphere-line: rgb(11 31 58 / 24%);--ob-gate: #2563eb;--ob-gate-ink: #fff;--ob-gate-shine: rgb(255 255 255 / 28%);--ob-gate-shade: rgb(0 0 0 / 14%);--space-tile: var(--navy);--space-campus: #0f766e;--space-team: #5b21b6;--demo: #92400e;--demo-soft: rgb(217 119 6 / 12%);--gate-pauli: #0b1f3a;--gate-phase: #4f46e5;--gate-multi: #0e7490;--gate-edge: rgb(0 0 0 / 12%);--gate-drop: rgb(11 31 58 / 35%);--ob-ink: #0b1f3a;--ob-ink-soft: #0b1f3a;--ob-ink-mute: #22324a;--ob-gate-hover: #336eec;--ob-grid: rgb(37 99 235 / 7.5%);--ob-bg: radial-gradient(90% 80% at 70% 30%, #fff 0%, #eef6ff 42%, #dce9f7 100%);--fig-circle: #38bdf8;--fig-gold: #f0c77a;--fig-pad: #c99a4a;--fig-tile: #fff;--fig-tint: var(--surf2)}:root[data-theme=dark]{--inset: var(--vacuum);--canvas: var(--vacuum);--acc-rgb: 59, 130, 246;--navlift: inset 0 1px 0 rgb(255 255 255 / 6%);--art-dark-sheet: #0f1d33;--art-dark-tx: #eaf3ff;--art-dark-tx3: #a9bcd6;--lab-sphere-shell: #6ea8f0;--lab-sphere-wire: #8fa3bd;--lab-sphere-acc: #8fcbff;--lab-sphere-acc2: #b5dbff;--lab-sphere-ok: #67e8f9;--lab-sphere-glow: .9;--lab-sphere-tx2: #dcebff;--lab-sphere-tx3: #a9bcd6;--lab-sphere-surface-rgb: 10, 24, 46;--lab-sphere-ground-rgb: 5, 11, 22;--lab-sphere-ket-ink: var(--ob-ink);--lab-sphere-ket-bg: color-mix(in srgb, var(--ob-panel) 75%, transparent);--lab-sphere-ket-shadow: 0 0 0 1px color-mix(in srgb, var(--ob-glow) 22%, transparent);--lab-sphere-axis-ink: #a9bcd6;--lab-stage-surface-rgb: 12, 22, 40;--lab-stage-ground-rgb: 12, 22, 40;--lab-stage-tx: #eaf3ff;--lab-stage-tx2: #a9bcd6;--lab-stage-line: rgb(148 178 220 / 32%);--lab-stage-line2: rgb(148 178 220 / 40%);--lab-stage-arrow: #3b82f6;--lab-stage-accent3: #93c5fd;--lab-stage-dial-ink: #fff;--lab-stage-surf: rgb(255 255 255 / 4%);--ob-panel: rgb(8 20 40);--ob-shadow: #000;--ob-glow: #7dd3fc;--ob-sphere-hi: rgb(147 197 253 / 30%);--ob-sphere-mid: rgb(37 99 235 / 16%);--ob-sphere-lo: rgb(11 31 58 / 5%);--ob-sphere-rim: rgb(191 219 254 / 55%);--ob-sphere-grid: rgb(191 219 254 / 18%);--ob-sphere-main: rgb(191 219 254 / 45%);--ob-sphere-axis: rgb(191 219 254 / 50%);--ob-sphere-ink: rgb(219 234 254 / 80%);--ob-sphere-vec: #93c5fd;--ob-sphere-line: rgb(191 219 254 / 35%);--ob-gate: #2563eb;--ob-gate-ink: #fff;--ob-gate-shine: rgb(255 255 255 / 28%);--ob-gate-shade: rgb(0 0 0 / 14%);--space-tile: #1b3358;--space-campus: #1b3358;--space-team: #1b3358;--demo: #fcd34d;--demo-soft: rgb(252 211 77 / 12%);--gate-pauli: #2b3d5c;--gate-phase: #4f46e5;--gate-multi: #22d3ee;--gate-edge: rgb(0 0 0 / 12%);--gate-drop: rgb(11 31 58 / 35%);--ob-ink: #fff;--ob-ink-soft: rgb(220 235 255);--ob-ink-mute: rgb(169 205 240);--ob-gate-hover: #336eec;--ob-grid: rgb(125 211 252 / 6.5%);--ob-bg: radial-gradient(90% 80% at 70% 30%, #0e2a55 0%, #08162e 48%, var(--vacuum) 100%);--fig-circle: #38bdf8;--fig-gold: #f0c77a;--fig-pad: rgb(240 199 122 / 85%);--fig-tile: #0a1a33;--fig-tint: #08111f}:root.reduce-motion{scroll-behavior:auto}:root.reduce-motion *,:root.reduce-motion *:before,:root.reduce-motion *:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-sans);font-size:var(--text-base);line-height:var(--leading-normal);color:var(--tx2);background-color:var(--bg);min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);color:var(--tx);line-height:var(--leading-tight);font-weight:var(--font-semibold);text-wrap:balance}h1{font-size:2.5rem;letter-spacing:-.025em;line-height:1.1}h2{font-size:1.75rem;letter-spacing:-.02em;line-height:1.15}h3{font-size:var(--text-xl);line-height:1.25}h4{font-size:var(--text-lg);line-height:1.3}h5{font-size:var(--text-base)}h6{font-size:var(--text-sm)}.display{font-family:var(--font-display);font-size:3.375rem;font-weight:var(--font-semibold);line-height:1.06;letter-spacing:-.03em;color:var(--tx)}p{margin-bottom:var(--spacing-4)}a{color:var(--acc);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--tx)}ul,ol{list-style:none}img,video,svg{max-width:100%;height:auto;display:block}button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit;color:inherit}button{cursor:pointer;background:none;border:none}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg2)}::-webkit-scrollbar-thumb{background:var(--line2);border-radius:var(--radius-sm)}::-webkit-scrollbar-thumb:hover{background:var(--tx3)}::selection{background-color:var(--acc);color:var(--onacc)}:focus-visible{outline:var(--focus-width) solid var(--acc);outline-offset:var(--focus-offset)}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}[hidden]{display:none!important}.skip-link{position:absolute;left:var(--spacing-4);top:-100px;z-index:200;padding:var(--spacing-3) var(--spacing-5);border-radius:var(--radius-md);background:var(--acc);color:var(--onacc);font-weight:var(--font-semibold);transition:top var(--transition-fast)}.skip-link:focus{top:var(--spacing-4);color:var(--onacc)}img[loading=lazy]:not([data-loaded]){min-width:48px;min-height:48px;background:var(--fill2);border-radius:var(--r-sm)}@media(prefers-reduced-motion:no-preference){:root:not(.reduce-motion) img[loading=lazy]:not([data-loaded]){animation:image-placeholder-pulse 1.4s ease-in-out infinite alternate}}@keyframes image-placeholder-pulse{to{background:var(--fill3)}}.lab-mount{display:contents}.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}.container{width:100%;max-width:var(--container-xl);margin:0 auto;padding:0 var(--spacing-6)}#app{display:flex;flex-direction:column;min-height:100vh}main{flex:1}.logo{display:inline-flex;height:22px;flex:none}.logo__light,.logo__dark,.logo__fixed{display:inline-flex;height:100%}.logo svg{height:100%;width:auto}.logo__dark{display:none}:root[data-theme=dark] .logo__light{display:none}:root[data-theme=dark] .logo__dark{display:inline-flex}:root{--tap: 44px;--sheen: rgb(255 255 255 / 22%);--lift: 0 1px 2px rgb(11 31 58 / 20%)}:root,:root[data-theme=light]{--thumb: #ffffff;--thumbshadow: 0 1px 3px rgb(11 31 58 / 12%), 0 0 0 .5px rgb(11 31 58 / 8%);--dialogbg: rgb(255 255 255 / 82%);--drawerbg: rgb(255 255 255 / 82%);--toastbg: rgb(255 255 255 / 82%);--okfill: #15803d;--veil: rgb(5 11 22 / 55%);--shimmer: rgb(11 31 58 / 7%);--shimmer2: rgb(11 31 58 / 14%)}:root[data-theme=dark]{--thumb: rgb(255 255 255 / 12%);--thumbshadow: inset 0 1px 0 rgb(255 255 255 / 8%);--dialogbg: rgb(18 30 52 / 90%);--drawerbg: rgb(14 25 45 / 92%);--toastbg: rgb(22 36 62 / 92%);--okfill: #16a34a;--veil: rgb(0 0 0 / 62%);--shimmer: rgb(255 255 255 / 7%);--shimmer2: rgb(255 255 255 / 14%)}.button{--button-height: 40px;position:relative;isolation:isolate;display:inline-flex;align-items:center;justify-content:center;gap:8px;height:var(--button-height);padding:0 18px;border:0;border-radius:var(--r-pill);background:none;color:inherit;font-family:inherit;font-size:14.5px;font-weight:590;letter-spacing:-.01em;white-space:nowrap;cursor:pointer;-webkit-user-select:none;user-select:none;transition:background-color var(--t-fast) var(--ease),color var(--t-fast),box-shadow var(--t) var(--ease),transform var(--t-fast) var(--ease),opacity var(--t-fast)}.button:before{content:"";position:absolute;top:50%;left:50%;width:100%;height:100%;min-width:var(--tap);min-height:var(--tap);transform:translate(-50%,-50%)}.button:focus-visible{outline:3px solid var(--focus);outline-offset:2px}.button:disabled,.button[aria-disabled=true]{opacity:.42;cursor:not-allowed}.button svg{width:17px;height:17px;flex:none}.button--sm{--button-height: 32px;padding:0 13px;font-size:13px;gap:6px}.button--sm svg{width:15px;height:15px}.button--lg{--button-height: 50px;padding:0 26px;font-size:16px}.button--block{width:100%}.button--icon{width:var(--button-height);padding:0}.button--primary{background:var(--accfill);color:var(--onacc);box-shadow:inset 0 1px 0 var(--sheen),var(--lift)}.button--ink{background:var(--tx);color:var(--bg)}.button--tinted{background:var(--accsoft);color:color-mix(in srgb,var(--acctx) 82%,var(--tx))}.button--secondary{background:var(--surf);color:var(--tx);box-shadow:0 0 0 1px var(--line2),var(--shadow-1)}.button--glass{background:var(--glass);color:var(--tx);-webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);box-shadow:inset 0 1px 0 var(--glass-shine),0 0 0 1px var(--line)}.button--plain{background:transparent;color:var(--acctx);padding:0 10px}.button--quiet{background:transparent;color:var(--tx2)}.button--danger{background:var(--bad);color:var(--onacc)}.button--danger-tinted{background:var(--badsoft);color:var(--badtx)}.button--primary:hover:not(:disabled){background:var(--accfill2);box-shadow:inset 0 1px 0 var(--sheen),var(--shadow-glow)}.button--ink:hover:not(:disabled){opacity:.88}.button--tinted:hover:not(:disabled){background:var(--accsoft2)}.button--secondary:hover:not(:disabled){background:var(--surf2)}.button--glass:hover:not(:disabled){background:var(--glass-strong)}.button--plain:hover:not(:disabled){background:var(--accsoft)}.button--quiet:hover:not(:disabled){background:var(--fill);color:var(--tx)}.button--danger:hover:not(:disabled){filter:brightness(1.06);box-shadow:0 8px 24px -8px var(--bad)}.button--danger-tinted:hover:not(:disabled){background:color-mix(in srgb,var(--bad) 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button-spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.button{transition:none}.button.is-loading:after{animation:none}}.field{display:grid;gap:7px}.field__label{display:flex;justify-content:space-between;align-items:baseline;gap:8px;font-size:13px;font-weight:590;color:var(--tx2)}.field__optional{font-weight:400;color:var(--tx4)}.field__input{box-sizing:border-box;width:100%;min-height:var(--tap);padding:0 14px;border:1px solid var(--line2);border-radius:var(--r-md);background:var(--surf);color:var(--tx);font-family:inherit;font-size:max(16px,15px);letter-spacing:inherit;outline:2px solid transparent;transition:border-color var(--t-fast),box-shadow var(--t-fast),background var(--t-fast)}.field__input--multiline{min-height:96px;padding:12px 14px;resize:vertical}.field__input::placeholder{color:var(--tx4)}.field__input:hover{border-color:var(--line3)}.field__input:focus{border-color:var(--acc);box-shadow:0 0 0 4px var(--accsoft)}.field__input[aria-invalid=true]{border-color:var(--bad);box-shadow:0 0 0 4px var(--badsoft)}.field__input:disabled,.field__input[readonly]{background:var(--surf2);color:var(--tx3)}.field__hint,.field__error{margin:0;font-size:12.5px}.field__hint{color:var(--tx3)}.field__error{display:flex;gap:6px;align-items:center;color:var(--badtx)}.field__error[hidden]{display:none}.field__error svg{width:14px;height:14px;flex:none}@media(prefers-reduced-motion:reduce){.field__input{transition:none}}.select-field{display:grid;gap:7px}.select-field__label{display:flex;justify-content:space-between;align-items:baseline;gap:8px;font-size:13px;font-weight:590;color:var(--tx2)}.select-field__optional{font-weight:400;color:var(--tx4)}.select-field__button{display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;padding:0 14px;min-height:var(--tap);box-sizing:border-box;color:var(--tx);background:var(--surf);border-radius:var(--r-md);border:1px solid var(--line2);font:inherit;font-size:15px;text-align:left;cursor:pointer;outline:2px solid transparent;transition:border-color var(--t-fast),box-shadow var(--t-fast),background var(--t-fast)}.select-field__button:hover{border-color:var(--line3)}.select-field__button:focus-visible,.select-field__button[aria-expanded=true]{border-color:var(--acc);box-shadow:0 0 0 4px var(--accsoft)}.select-field__chevron{width:16px;height:16px;color:var(--tx3);flex:none}.select-field__value--placeholder{color:var(--tx4)}.select-field__option{display:flex;align-items:center;gap:10px;width:100%;padding:8px 10px;min-height:var(--tap);box-sizing:border-box;color:var(--tx);background:none;border:0;border-radius:9px;font:inherit;font-size:14px;text-align:left;cursor:pointer}.select-field__option[hidden]{display:none}.select-field__option:hover,.select-field__option:focus-visible{background:var(--fill2);outline:2px solid transparent}.select-field__option[aria-selected=true]{color:var(--acctx);font-weight:590}.select-field__tick{width:16px;height:16px;margin-left:auto;opacity:0}.select-field__option[aria-selected=true] .select-field__tick{opacity:1}.select-field__search{position:sticky;top:0;z-index:1;display:block;width:100%;min-height:40px;margin-bottom:4px;padding:0 12px;box-sizing:border-box;color:var(--tx);background:var(--surf);border:1px solid var(--line2);border-radius:9px;font:inherit;font-size:14px;outline:2px solid transparent}.select-field__search:focus-visible{border-color:var(--acc);box-shadow:0 0 0 3px 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.button{justify-self:start}.hwg-lessons{display:grid;gap:8px;padding:14px;background:var(--surf);border:1px solid var(--line);border-radius:var(--r-xl)}.hwg-acts{display:grid;gap:2px}.hwg-act{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:12px;align-items:center;padding:10px 12px;color:inherit;text-decoration:none;border-radius:12px}a.hwg-act:hover{background:var(--fill)}a.hwg-act:focus-visible{outline:2px solid var(--acc);outline-offset:2px}.hwg-act.is-locked{color:var(--tx3)}.hwg-act-ic{display:inline-grid;place-items:center;width:32px;height:32px;color:var(--acc2);background:var(--accsoft);border-radius:9px}.hwg-act-ic.is-locked{color:var(--tx4);background:var(--fill2)}.hwg-act-ic.is-done{color:var(--ok);background:var(--oksoft)}.hwg-act-ic svg{width:16px;height:16px}.hwg-act-t{font-size:14px;font-weight:540;line-height:1.3}.hwg-act-m{color:var(--tx3);font-size:12px}.hwg-act-end{display:inline-flex;gap:6px;align-items:center;color:var(--tx3);font-size:12px;white-space:nowrap}.hwg-act-end svg{width:14px;height:14px}@media(prefers-reduced-motion:reduce){.hwg-step{transition:none}}@media(max-width:1000px){.hwg-wrap{grid-template-columns:minmax(0,1fr);gap:0}.hwg-stage{top:60px;z-index:5;height:44svh;min-height:300px;background:var(--bg)}.hwg-steps{padding:4vh 0 20vh}.hwg-step{min-height:60svh}.hwg-model:not(.is-fallback-tour){height:calc(100% - 60px)}}@media(max-width:960px){.hwg-page{padding:4px 16px 120px}}.activity-read__hardware{overflow:hidden}.hardware-figure{position:relative;height:380px;overflow:hidden;background:var(--fill);border-radius:var(--r-xl)}.hardware-figure .hw3d-lab{position:absolute;inset:calc(var(--hw3d-grow, 9%) * -1)}.hardware-figure .hw3d-lab>.qubit-lab[data-skin]{position:absolute;inset:0;width:100%;height:100%;min-height:0;padding:0;margin:0;overflow:hidden;background:transparent;border:0;border-radius:0;box-shadow:none}.hardware-figure .hw3d-lab iframe{display:block;width:100%;height:100%;border:0;background:transparent}.hardware-figure .hw3d-load{position:absolute;inset:0;display:grid;color:var(--tx)}.hardware-figure.is-fallback{height:auto}.hardware-figure__fallback{display:flex;gap:14px;align-items:center;padding:18px;color:var(--tx2)}.hardware-figure__fallback p{margin:0;line-height:1.55}.hardware-figure__icon{display:inline-grid;flex:none;place-items:center;width:36px;height:36px;color:var(--acctx);background:var(--accsoft);border-radius:10px}.hardware-figure__icon svg{width:18px;height:18px}.hardware-section__caption{display:flex;flex-direction:column;gap:8px;padding:18px 0;border-top:1px solid var(--line);color:var(--tx2);font-size:12px;line-height:1.7}.hardware-section__caption strong{color:var(--tx);font-weight:500}.hardware-section__caption a,.hardware-return{color:var(--acc2);font-size:11px}.hardware-return{display:block;margin:-10px 0 24px}@media(max-width:640px){.hardware-figure{height:300px}}.activity-page{display:grid;grid-template-rows:auto minmax(0,1fr) auto;height:100vh;height:100dvh;overflow:hidden;background:var(--bg)}body:has(.activity-page){--activity-bottom: 65px}body:has(.activity-page) .connection-banner{bottom:var(--activity-bottom)}.activity-player-bar,.activity-page__bottom{background:var(--glass);-webkit-backdrop-filter:blur(28px) saturate(180%);backdrop-filter:blur(28px) saturate(180%);box-shadow:0 0 0 .5px var(--glass-edge),var(--shadow-2),inset 0 1px 0 var(--glass-shine)}.activity-page__main{padding-bottom:var(--activity-banner, 0);display:flex;flex-direction:column;min-width:0;min-height:0}.activity-page__view-switch{display:none;align-self:stretch;max-width:20rem;margin:var(--spacing-3) var(--spacing-6) 0}.activity-page__read-head,.activity-page__apply-head{display:flex;align-items:center;gap:8px}.activity-page__read-head{display:inline-flex;align-self:flex-start}.activity-page__apply-head{flex-wrap:wrap;gap:8px 12px}.activity-page__badge{display:inline-flex;align-items:center;gap:5px;height:22px;padding:0 9px;border-radius:var(--r-pill);letter-spacing:-.006em;font-size:12px;font-weight:590;white-space:nowrap}.activity-page__badge svg{width:12px;height:12px;flex:none}.activity-page__badge--read{background:var(--accsoft);color:var(--acctx)}.activity-page__badge--apply{background:var(--oksoft);color:color-mix(in srgb,var(--ok) 78%,var(--tx))}.activity-page__read-meta,.activity-page__apply-type,.activity-page__attempt,.activity-page__saved{margin:0;color:var(--tx3);font-size:12px;font-weight:500;line-height:1.35;letter-spacing:0}.activity-page__apply-type{flex:1;min-width:0;overflow-wrap:anywhere}.activity-page__bottom{position:sticky;bottom:0;z-index:var(--z-fixed);box-sizing:border-box;display:flex;align-items:center;justify-content:space-between;gap:12px;height:var(--activity-bottom);letter-spacing:-.006em;padding:12px 24px;border-top:1px solid var(--glass-border)}.activity-page__saved{flex:1;min-width:0;text-align:center}.activity-page__verified{display:inline-flex;align-items:center;gap:6px;color:var(--ok);font-size:13px;font-weight:590}.activity-page__verified svg{width:15px;height:15px;flex:none}.activity-content{flex:1;display:grid;grid-template-columns:minmax(0,var(--read-share, 1fr)) 24px minmax(0,var(--apply-share, 1fr));gap:0;width:100%;max-width:1440px;margin:0 auto;padding:8px 24px 24px;min-height:0}.activity-content[data-apply-type=bloch]{--read-share: .85fr;--apply-share: 1.15fr}.activity-divider{display:flex;align-items:center;justify-content:center;cursor:col-resize;touch-action:none;-webkit-user-select:none;user-select:none;border-radius:var(--radius-sm)}.activity-divider span{width:5px;height:52px;border-radius:6px;background:var(--line2);box-shadow:0 0 0 4px var(--bg);transition:background var(--transition-fast)}.activity-divider:hover span,.activity-divider:focus-visible span,.activity-content[data-resizing] .activity-divider span{background:var(--acc)}.activity-content[data-resizing]{cursor:col-resize;-webkit-user-select:none;user-select:none}@media(pointer:coarse)and (min-width:1024px){.activity-content{grid-template-columns:minmax(0,var(--read-share, 1fr)) 44px minmax(0,var(--apply-share, 1fr))}}.activity-read,.activity-apply{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r-2xl);background:var(--surf);min-width:0;overflow:hidden}.activity-apply{box-shadow:inset 0 1px 0 var(--glass-shine),var(--shadow-2)}.activity-read__inner,.activity-apply__inner{display:flex;flex-direction:column;gap:18px;min-height:0;flex:1;overflow-y:auto}.activity-read__inner{padding:40px clamp(24px,4vw,56px)}.activity-apply__inner{padding:28px;gap:20px}.activity-read__inner:focus-visible,.activity-apply__inner:focus-visible{outline:2px solid var(--acc);outline-offset:-4px}.activity-read__content{display:flex;flex-direction:column;gap:var(--spacing-5)}.activity-read__title{margin:0;font-size:clamp(28px,3.2vw,38px);font-weight:600;line-height:1.1;letter-spacing:-.03em}.activity-read__text{margin:0;max-width:var(--measure);font-size:var(--text-base);line-height:var(--leading-prose);color:var(--tx2);text-wrap:pretty}.activity-read__text em{color:var(--tx);font-style:italic}.activity-read__image{margin:0;display:flex;flex-direction:column;gap:9px}.activity-read__image img,.activity-read__lottie{width:100%;border-radius:var(--radius-lg);background:var(--inset);border:1px solid var(--line);padding:var(--spacing-3)}.activity-read__caption{margin:0;font-size:.8125rem;line-height:1.5;color:var(--tx3)}.activity-apply__content{display:flex;flex-direction:column;gap:var(--spacing-4);flex:1;min-height:0}.activity-apply__instruction{margin:0;font-size:var(--text-base);line-height:1.65;color:var(--tx);text-wrap:pretty}.exercise-host{position:relative}.exercise-host[data-exercise-state=loading]{min-height:280px}.exercise-surface{display:flex;flex-direction:column;gap:var(--spacing-4);min-width:0;flex:1}.exercise-host[data-exercise-state=loading]>.exercise-surface{opacity:0;pointer-events:none}.exercise-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-3);min-height:240px;padding:var(--spacing-6);color:var(--tx2);font-size:var(--text-sm);text-align:center}.exercise-host[data-exercise-state=loading]>.exercise-loading{position:absolute;inset:0}.exercise-loading strong{color:var(--tx);font-size:var(--text-base)}.exercise-loading__spinner{width:36px;height:36px;margin-bottom:var(--spacing-2);border:3px solid var(--line2);border-top-color:var(--acc);border-radius:50%;animation:exercise-loading-spin .85s linear infinite}@keyframes exercise-loading-spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.exercise-loading__spinner{animation:none}}@media(max-width:1023px){.activity-page{height:auto;min-height:100vh;min-height:100dvh;overflow:visible}.activity-page__main{min-height:0}.activity-read__inner,.activity-apply__inner{overflow-y:visible}.activity-content,.activity-content[data-apply-type=bloch]{grid-template-columns:1fr}.activity-divider{display:none}.activity-page__view-switch{display:block}.activity-read,.activity-apply{display:none}.activity-read.is-active,.activity-apply.is-active{display:flex}}@media(max-width:960px){body:has(.activity-page){--activity-bottom: 61px}.activity-page__bottom{padding:10px 14px}.activity-page__view-switch{margin-inline:12px}.activity-content{padding:4px 12px 16px}.activity-read__inner{padding:28px 22px}.activity-apply__inner{padding:22px}}@media(max-width:480px){.activity-page__bottom{gap:8px}.activity-page__bottom .button--quiet{flex:none;padding:0 10px}.activity-page__bottom .button--quiet .button__label{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.activity-page__bottom .button--primary{flex:none;padding:0 14px}}@media(max-width:480px){.activity-page__verified{display:inline;font-size:12px;line-height:1.2}.activity-page__verified svg{display:none}}@media(max-width:720px){.activity-content[data-apply-type=bloch]{padding-inline:12px}}.activity-apply__exercise{display:flex;flex-direction:column;gap:1.5rem}.activity-apply__dropzones{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}.dropzone{background:transparent;display:flex;flex-direction:column;align-items:center}.dropzone__drop-area{width:100%;min-height:80px;border:2px dashed var(--ovl2);border-radius:10px;display:flex;align-items:center;justify-content:center;transition:background-color .15s ease,border-color .15s ease;background:var(--ovl1);padding:.5rem}.dropzone.is-dragover .dropzone__drop-area{border-color:var(--acc);background:rgb(var(--acc-rgb),.08)}.dropzone.is-correct .dropzone__drop-area{border-color:var(--ok);background:var(--oksoft)}.dropzone.is-incorrect .dropzone__drop-area{border-color:var(--err);background:var(--errsoft)}.activity-apply__quiz-visual{position:relative;display:flex;justify-content:center;align-items:center;margin:.5rem 0}.activity-apply__quiz-img{max-width:100%;height:auto;max-height:180px}@media(min-width:768px){.activity-apply__quiz-img{max-height:160px}}.dropzone__drop-area{width:100%;min-height:90px;border:2px dashed rgb(var(--acc-rgb),.5);border-radius:8px;display:flex;align-items:center;justify-content:center;transition:background-color .15s ease,border-color .15s ease;background:rgb(var(--acc-rgb),.05);padding:.5rem}.activity-apply__draggables{display:flex;gap:.75rem;padding:.75rem;background:var(--ovl1);border:1px solid var(--ovl2);border-radius:10px;justify-content:center;flex-wrap:wrap}.draggable{background:var(--ovl1);border:2px solid var(--ovl2);border-radius:6px;padding:.5rem;cursor:grab;transition:border-color .15s ease,box-shadow .15s ease,opacity .15s ease,transform .15s ease;display:inline-flex;align-items:center;justify-content:center;min-width:100px;min-height:80px}.draggable:hover{border-color:rgb(var(--acc-rgb),.5);transform:translateY(-2px);box-shadow:0 4px 12px rgb(var(--acc-rgb),.15)}.draggable.is-dragging{opacity:.5;cursor:grabbing}.draggable.is-correct{border-color:var(--ok);box-shadow:0 0 0 2px var(--activity-correct-ring)}.draggable.is-incorrect{border-color:var(--err);box-shadow:0 0 0 2px var(--activity-incorrect-ring)}.draggable__img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;pointer-events:none}.dropzone__drop-area .draggable{margin:0;min-width:100px;min-height:80px}.activity-apply__actions{display:flex;justify-content:flex-end;gap:.75rem;margin-top:.5rem}.activity-apply__button{padding:.625rem 1.5rem;border-radius:8px;font-size:.875rem;font-weight:500;cursor:pointer;transition:background-color .15s ease,border-color .15s ease,color .15s ease;border:none}.activity-apply__button:disabled{opacity:.5;cursor:not-allowed}.activity-apply__button--reset{background:transparent;color:var(--tx2);border:1px solid var(--ovl2)}.activity-apply__button--reset:not(:disabled):hover{background:var(--ovl1);border-color:var(--ovl2);color:var(--tx)}.activity-apply__button--submit{background:var(--acc);color:var(--onacc);border:1px solid var(--acc)}.activity-apply__button--submit:not(:disabled):hover{background:var(--accdeep);border-color:var(--accdeep)}.activity-apply__feedback-card{margin-top:2rem;padding:14px 16px;border-radius:var(--r-lg);background:var(--accsoft);color:var(--tx);font-size:14.5px;line-height:1.5;display:none}.activity-apply__feedback-card[data-state=success],.activity-apply__feedback-card[data-state=error]{display:block}.activity-apply__feedback-card[data-state=success]{background:var(--oksoft)}.activity-apply__feedback-card[data-state=error]{background:var(--badsoft)}.feedback-card__header{display:flex;align-items:flex-start;gap:12px;margin-bottom:2px}.feedback-card__icon{width:20px;height:20px;flex:none;margin-top:1px;display:flex;align-items:center;justify-content:center}.feedback-card__icon svg{width:100%;height:100%}[data-state=success] .feedback-card__icon{color:var(--ok)}[data-state=error] .feedback-card__icon{color:var(--badtx)}.feedback-card__title{font-size:inherit;font-weight:700;color:var(--tx);margin:0}.feedback-card__text{font-size:inherit;color:var(--tx);line-height:inherit;margin:0 0 12px 32px}.feedback-card__text em{font-style:italic;color:inherit}.feedback-card__actions{display:flex;gap:8px;margin-left:32px}.feedback-card__button{display:inline-flex;align-items:center;justify-content:center;position:relative;height:32px;padding:0 13px;border-radius:var(--r-pill);font-size:13px;font-weight:590;cursor:pointer;transition:background-color var(--t-fast),border-color var(--t-fast);border:none}.feedback-card__button:before{content:"";position:absolute;top:50%;left:50%;width:100%;height:100%;min-width:var(--tap);min-height:var(--tap);transform:translate(-50%,-50%)}.feedback-card__button--outline{background:transparent;color:var(--tx2);border:1px solid var(--line3)}.feedback-card__button--outline:hover{background:var(--fill);color:var(--tx)}.feedback-card__button--primary{background:var(--acc);color:var(--onacc)}.feedback-card__button--primary:hover{background:var(--accdeep)}@media(max-width:768px){.activity-apply__dropzones{grid-template-columns:1fr;gap:1rem}.activity-apply__quiz-img{max-height:150px}}.activity-apply__slider-container{display:flex;flex-direction:column;gap:1.5rem;padding:1.5rem;background:var(--bg);border-radius:12px;border:1px solid var(--ovl2)}.activity-apply__slider-visual{display:flex;justify-content:center;align-items:center;min-height:200px;overflow:hidden}.activity-apply__slider-img{max-width:100%;max-height:300px;object-fit:contain;transition:transform .3s ease}.activity-apply__lottie-visual{display:flex;justify-content:center;align-items:center;min-height:200px;width:100%;max-width:440px;margin:0 auto}.activity-apply__lottie-visual svg{width:100%;height:auto}.activity-read__lottie-wrapper{position:relative;background:var(--activity-lottie-ground);border-radius:.75rem;overflow:visible;margin:1.5rem 0}.activity-read__lottie{width:100%;display:flex;justify-content:center;align-items:center;border-radius:.75rem .75rem 0 0;overflow:hidden}.activity-read__lottie svg{width:100%;height:auto;max-height:300px}.activity-read__controls{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;opacity:0;transition:opacity .2s ease;z-index:100}.activity-read__lottie-wrapper:hover .activity-read__controls{opacity:1}.lottie-play-button{width:48px;height:48px;min-width:48px;min-height:48px;border-radius:50%;border:none;background:var(--acc);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background-color .2s ease,opacity .2s ease,transform .2s ease;opacity:.9;z-index:101;position:relative}.lottie-play-button:hover{opacity:1;transform:scale(1.05);background:var(--accdeep)}.lottie-play-button svg{width:24px;height:24px;color:#fff;fill:#fff}.lottie-scrubber{position:absolute;bottom:0;left:1rem;right:1rem;height:20px;transform:translateY(50%)}.lottie-scrubber__track{position:absolute;top:50%;left:0;right:0;height:4px;background:rgb(var(--acc-rgb),.3);border-radius:2px;transform:translateY(-50%)}.lottie-scrubber__progress{height:100%;background:var(--acc);border-radius:2px;width:0%}.lottie-scrubber__thumb{position:absolute;top:50%;left:0%;width:14px;height:14px;background:var(--acc);border-radius:50%;transform:translate(-50%,-50%);transition:left .05s linear;pointer-events:none}.lottie-scrubber__input{position:absolute;top:0;left:0;width:100%;height:100%;opacity:0;cursor:pointer;margin:0}.activity-read__caption{text-align:center;font-size:.875rem;font-style:italic;color:var(--tx2);padding:1.25rem 1rem .75rem;margin:0}.activity-apply__slider-controls{padding:.5rem 0}.activity-apply__slider-track{position:relative;padding:1rem 0;--fill-percent: 0%}.activity-apply__slider-track:before{content:"";position:absolute;top:50%;left:0;transform:translateY(-50%);height:2px;width:var(--fill-percent);background:var(--acc);border-radius:1px;z-index:1;pointer-events:none}.slider-marker{position:absolute;top:50%;transform:translateY(-50%);width:1px;height:8px;background:var(--ovl2);z-index:3;pointer-events:none;left:50%}.slider-marker:nth-child(n+3){display:none}.activity-apply__slider{position:relative;width:100%;height:2px;border-radius:1px;background:var(--ovl2);outline:none;-webkit-appearance:none;appearance:none;z-index:2;cursor:pointer}.activity-apply__slider::-webkit-slider-runnable-track{height:2px;border-radius:1px;background:transparent}.activity-apply__slider::-moz-range-track{height:2px;border-radius:1px;background:transparent}.activity-apply__slider::-moz-range-progress{height:2px;border-radius:1px;background:var(--acc)}.activity-apply__slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:1.125rem;height:1.125rem;border-radius:50%;background:var(--acc);border:2px 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