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ease;white-space:nowrap}.control-btn:hover:not(:disabled){border-color:var(--pc-volt);color:var(--pc-volt);transform:translateY(-2px)}.control-btn:disabled{opacity:.55;cursor:not-allowed}.control-btn.active{background:var(--pc-volt);border-color:var(--pc-volt);color:var(--pc-ink-900);animation:pulse-glow 1.5s ease-in-out infinite}@keyframes pulse-glow{0%,to{box-shadow:0 0 12px 0 var(--pc-volt-glow)}50%{box-shadow:0 0 24px 4px var(--pc-volt-glow)}}.demo-instructions{text-align:center;padding:1rem;background:#ffffff0d;border-radius:var(--pc-radius-md);border:1px solid var(--pc-on-ink-border)}.instruction-text{margin:0;color:var(--pc-on-ink-soft);font-weight:600;font-size:.9rem;display:flex;align-items:center;justify-content:center;gap:.5rem}.instruction-text.active{color:var(--pc-volt)}.landing-stats{background:var(--pc-paper);padding:4.5rem 2rem 3.5rem;border-bottom:1px solid var(--pc-border)}.stats-grid{max-width:1400px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:2rem}.stat-card{text-align:center;color:var(--pc-ink-text)}.stat-icon{display:flex;justify-content:center;margin-bottom:.75rem;color:var(--pc-copper)}.stat-value{font-family:var(--pc-font-display);font-size:3rem;font-weight:800;letter-spacing:var(--pc-tracking-display);margin-bottom:.25rem;color:var(--pc-ink-text)}.stat-label{font-size:.95rem;font-weight:600;color:var(--pc-ink-text-soft)}.landing-modules{max-width:1400px;margin:0 auto;padding:6rem 2rem}.section-header{text-align:center;margin-bottom:4rem}.section-title{font-family:var(--pc-font-display);font-size:var(--pc-text-3xl);font-weight:800;letter-spacing:var(--pc-tracking-display);color:var(--pc-ink-text);margin:0 0 1rem}.section-subtitle{font-size:var(--pc-text-lg);color:var(--pc-ink-text-soft);max-width:600px;margin:0 auto}.modules-slider-container{position:relative;max-width:1400px;margin:0 auto;overflow:hidden;padding:0 60px}.modules-slider{display:flex;gap:2rem;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;padding:1rem 0;-webkit-overflow-scrolling:touch;scrollbar-width:none}.modules-slider::-webkit-scrollbar{display:none}.slider-nav{position:absolute;top:50%;transform:translateY(-50%);width:50px;height:50px;background:var(--pc-surface);border:1.5px solid var(--pc-border-strong);border-radius:50%;color:var(--pc-circuit);font-size:2rem;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:10;transition:all var(--pc-dur-fast) ease;box-shadow:var(--pc-shadow-md)}.slider-nav:hover{background:var(--pc-circuit);border-color:var(--pc-circuit);color:#fff;transform:translateY(-50%) scale(1.08)}.slider-nav-left{left:-25px}.slider-nav-right{right:-25px}.module-card{background:var(--pc-surface);border-radius:var(--pc-radius-lg);border:1px solid var(--pc-border);overflow:hidden;transition:transform var(--pc-dur-med) var(--pc-ease-out),box-shadow var(--pc-dur-med) var(--pc-ease-out);flex:0 0 calc((100% - 4rem) / 3);scroll-snap-align:start;min-width:320px;box-shadow:var(--pc-shadow-sm)}.module-card:hover{transform:translateY(-6px);box-shadow:var(--pc-shadow-lg)}.module-header{padding:1.25rem 1.5rem;color:#fff;display:flex;justify-content:space-between;align-items:center}.module-icon{display:inline-flex;color:#fff}.module-number{font-family:var(--pc-font-mono);font-size:.8rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;opacity:.9}.module-body{padding:2rem}.module-title{font-family:var(--pc-font-display);font-size:1.4rem;font-weight:700;letter-spacing:var(--pc-tracking-display);color:var(--pc-ink-text);margin:0 0 .75rem}.module-description{color:var(--pc-ink-text-soft);margin:0 0 1.5rem;line-height:1.6}.module-highlights{list-style:none;padding:0;margin:0 0 1.5rem}.module-highlights li{display:flex;align-items:center;gap:.5rem;color:var(--pc-ink-text-soft);margin-bottom:.5rem}.highlight-check{color:var(--pc-mint);font-weight:700;display:inline-flex}.module-footer{display:flex;justify-content:space-between;align-items:center;padding-top:1.5rem;border-top:1px solid var(--pc-border)}.module-sessions{color:var(--pc-ink-text-faint);font-family:var(--pc-font-mono);font-weight:600;font-size:.82rem}.btn-demo{display:inline-flex;align-items:center;gap:.4rem;padding:.5rem 1rem;background:transparent;border:1.5px solid var(--pc-border-strong);color:var(--pc-circuit);border-radius:var(--pc-radius-sm);font-family:var(--pc-font-body);font-weight:700;cursor:pointer;transition:all var(--pc-dur-fast) ease}.btn-demo:hover{background:var(--pc-circuit);border-color:var(--pc-circuit);color:#fff}.landing-features{background:var(--pc-surface);padding:6rem 2rem;border-top:1px solid var(--pc-border)}.features-grid{max-width:1400px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem}.feature-card{text-align:center;padding:2rem;background:var(--pc-paper);border:1px solid var(--pc-border);border-radius:var(--pc-radius-lg);transition:transform var(--pc-dur-med) var(--pc-ease-out),box-shadow var(--pc-dur-med) var(--pc-ease-out)}.feature-card:hover{transform:translateY(-4px);box-shadow:var(--pc-shadow-lg)}.feature-icon{display:inline-flex;align-items:center;justify-content:center;width:60px;height:60px;border-radius:var(--pc-radius-lg);background:var(--pc-circuit-soft);color:var(--pc-circuit);margin-bottom:1.25rem}.feature-title{font-family:var(--pc-font-display);font-size:1.2rem;font-weight:700;color:var(--pc-ink-text);margin:0 0 .5rem}.feature-description{color:var(--pc-ink-text-soft);line-height:1.6}.landing-cta{background:var(--pc-gradient-ink);padding:6rem 2rem;text-align:center;position:relative;overflow:hidden}.landing-cta:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;background:radial-gradient(circle 3px at 20% 78%,var(--pc-volt) 98%,transparent),radial-gradient(circle 3px at 44% 78%,var(--pc-volt) 98%,transparent),linear-gradient(to right,transparent 20%,var(--pc-on-ink-border) 20%,var(--pc-on-ink-border) 44%,transparent 44%) 0 77.5%/100% 2px no-repeat;background-repeat:no-repeat}.cta-content{max-width:800px;margin:0 auto;position:relative;z-index:1}.cta-mascot{margin-bottom:1rem;display:inline-block;filter:drop-shadow(0 10px 30px rgba(255,197,61,.25))}.cta-title{font-family:var(--pc-font-display);font-size:var(--pc-text-3xl);font-weight:800;letter-spacing:var(--pc-tracking-display);color:var(--pc-on-ink);margin:0 0 1rem}.cta-subtitle{font-size:var(--pc-text-lg);color:var(--pc-on-ink-soft);margin:0 0 2rem}.btn-cta-large{display:inline-flex;align-items:center;gap:.6rem;padding:1.25rem 2.5rem;background:var(--pc-volt);border:none;color:var(--pc-ink-900);border-radius:var(--pc-radius-md);font-family:var(--pc-font-body);font-size:1.2rem;font-weight:800;cursor:pointer;transition:transform var(--pc-dur-med) var(--pc-ease-out),box-shadow var(--pc-dur-med) var(--pc-ease-out),background var(--pc-dur-fast) ease;box-shadow:0 12px 36px -8px var(--pc-volt-glow)}.btn-cta-large:hover{transform:translateY(-4px);background:var(--pc-volt-strong);box-shadow:0 18px 44px -10px var(--pc-volt-glow)}.landing-footer{background:var(--pc-ink-950);color:var(--pc-on-ink-soft);padding:4rem 2rem 2rem}.footer-content{max-width:1400px;margin:0 auto 3rem;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:3rem}.footer-logo{display:flex;flex-direction:column;margin-bottom:.5rem}.footer-tagline{color:var(--pc-on-ink-faint);line-height:1.6}.footer-heading{color:var(--pc-on-ink);font-family:var(--pc-font-display);font-size:1.05rem;font-weight:700;margin:0 0 1rem}.footer-links{list-style:none;padding:0;margin:0}.footer-links li{margin-bottom:.75rem}.footer-links a{color:var(--pc-on-ink-soft);text-decoration:none;transition:color var(--pc-dur-fast) ease}.footer-links a:hover{color:var(--pc-volt)}.footer-bottom{max-width:1400px;margin:0 auto;padding-top:2rem;border-top:1px solid var(--pc-on-ink-border);text-align:center;color:var(--pc-on-ink-faint)}@media (prefers-reduced-motion: reduce){.landing-logo,.btn-cta-primary,.btn-cta-large,.btn-cta-small,.btn-dashboard,.module-card,.feature-card,.control-btn{transition:none}.control-btn.active{animation:none}.btn-cta-primary:hover,.btn-cta-large:hover,.module-card:hover,.feature-card:hover{transform:none}}@media (max-width: 1024px){.landing-hero{grid-template-columns:1fr;gap:3.5rem}.landing-hero-visual{order:-1;margin-top:2.5rem}.stats-grid{grid-template-columns:repeat(2,1fr)}.footer-content{grid-template-columns:1fr 1fr}.module-card{flex:0 0 calc((100% - 2rem)/2)}.modules-slider-container{padding:0 50px}}@media (max-width: 768px){.landing-header-content{padding:.5rem 1rem;min-height:56px}.logo-text-animated{font-size:1.35rem}.logo-text-animated-footer{font-size:1.6rem}.landing-hero{padding:3rem 1rem}.landing-hero-subtitle{font-size:1rem}.landing-hero-actions{flex-direction:column}.stats-grid{grid-template-columns:1fr;gap:1.5rem}.features-grid,.footer-content{grid-template-columns:1fr}.btn-login,.hero-mascot{display:none}.module-card{flex:0 0 calc(100% - 2rem);min-width:280px}.modules-slider-container{padding:0 40px}.slider-nav{width:40px;height:40px;font-size:1.5rem}.slider-nav-left{left:-5px}.slider-nav-right{right:-5px}.interactive-demo{min-height:420px}.demo-content{padding:.75rem}.white-key{width:42px;height:150px}.black-key{width:26px;height:95px}.led-light{width:20px;height:20px}.demo-controls{gap:.5rem}.control-btn{padding:.5rem 1rem;font-size:.85rem}}@media (max-width: 480px){.landing-header-content{padding:.5rem .75rem;min-height:52px}.logo-text-animated{font-size:1.2rem}.logo-text-animated-footer{font-size:1.4rem}.landing-header-actions{gap:.5rem}.btn-login,.btn-dashboard,.btn-cta-small{padding:.4rem 1rem;font-size:.85rem}.slider-nav{width:36px;height:36px;font-size:1.2rem}.slider-nav-left{left:0}.slider-nav-right{right:0}.modules-slider-container{padding:0 20px}.module-card{flex:0 0 calc(100% - 1rem);min-width:260px}.interactive-demo{min-height:400px}.demo-content{padding:.5rem}.demo-header{font-size:.9rem;margin-bottom:1rem}.demo-subtitle{font-size:.72rem}.led-strip{gap:.4rem;padding:.75rem;margin-bottom:1rem}.led-light{width:16px;height:16px}.piano-keyboard{padding:.5rem;gap:1px;margin-bottom:1rem}.white-key{width:32px;height:120px;padding-bottom:.5rem}.black-key{width:20px;height:75px}.key-label{font-size:.65rem}.demo-controls{gap:.5rem;justify-content:center}.control-btn{padding:.5rem .75rem;font-size:.75rem;gap:.25rem;flex:0 0 auto}.demo-instructions{padding:.75rem}.instruction-text{font-size:.8rem}@media (max-width: 380px){.control-btn{padding:.625rem;width:44px;height:44px;justify-content:center}.control-btn span:not(.control-icon){display:none}}}.errb-container{min-height:100vh;background:var(--pc-paper, #faf7f1);display:flex;align-items:center;justify-content:center;padding:1rem;font-family:var(--pc-font-body, system-ui, sans-serif);color:var(--pc-ink-text, #1b2940)}.errb-card{max-width:42rem;width:100%;background:var(--pc-surface, #fff);border-radius:var(--pc-radius-xl, 24px);box-shadow:var(--pc-shadow-lg, 0 18px 40px -18px rgba(14, 26, 43, .28));border:1px solid var(--pc-border, #e8e2d6);overflow:hidden}.errb-header{display:flex;align-items:center;gap:.9rem;padding:1.25rem 1.5rem;border-bottom:1px solid var(--pc-border, #e8e2d6);background:var(--pc-coral-soft, #fdeae8)}.errb-header h1{font-family:var(--pc-font-display, inherit);font-size:1.25rem;font-weight:700;letter-spacing:-.02em;margin:0;color:var(--pc-ink-text, #1b2940)}.errb-body{padding:1.5rem}.errb-message{color:var(--pc-ink-text-soft, #51617c);margin:0 0 1rem;line-height:1.6}.errb-hints{background:var(--pc-surface-sunken, #f4efe6);border-radius:var(--pc-radius-md, 12px);padding:1rem;margin-bottom:1.5rem}.errb-hints h3{font-size:.95rem;font-weight:700;margin:0 0 .5rem}.errb-hints ul{margin:0;padding-left:1.1rem;font-size:.9rem;color:var(--pc-ink-text-soft, #51617c);line-height:1.8}.errb-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-bottom:1.5rem}.errb-btn{display:inline-flex;align-items:center;gap:.45rem;padding:.6rem 1.3rem;border:none;border-radius:var(--pc-radius-md, 12px);font-family:inherit;font-size:.95rem;font-weight:700;cursor:pointer;transition:transform .12s ease,background .15s ease}.errb-btn--primary{background:var(--pc-volt, #ffc53d);color:var(--pc-ink-900, #0e1a2b);box-shadow:var(--pc-shadow-volt, none)}.errb-btn--primary:hover{background:var(--pc-volt-strong, #f5ae00);transform:translateY(-2px)}.errb-btn--ghost{background:transparent;color:var(--pc-circuit, #2e63d9);border:1.5px solid var(--pc-border-strong, #d6cdbb)}.errb-btn--ghost:hover{border-color:var(--pc-circuit, #2e63d9)}.errb-details{border:1px solid var(--pc-border, #e8e2d6);border-radius:var(--pc-radius-md, 12px);overflow:hidden}.errb-details summary{padding:.75rem 1rem;background:var(--pc-surface-sunken, #f4efe6);cursor:pointer;font-size:.85rem;font-weight:600;color:var(--pc-ink-text-soft, #51617c)}.errb-details-body{padding:.9rem 1rem;border-top:1px solid var(--pc-border, #e8e2d6)}.errb-details-body h4{font-size:.82rem;font-weight:700;margin:.6rem 0 .25rem}.errb-details-body code,.errb-details-body pre{font-family:var(--pc-font-mono, monospace);font-size:.75rem;background:var(--pc-surface-sunken, #f4efe6);border-radius:6px;padding:.25rem .5rem;display:block;overflow-wrap:anywhere}.errb-details-body pre{max-height:8rem;overflow:auto;padding:.5rem}@media (prefers-reduced-motion: reduce){.errb-btn{transition:none}.errb-btn--primary:hover{transform:none}}.auth-guard-container{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;padding:1rem;background:var(--pc-paper)}.auth-guard-card{background:var(--pc-surface);padding:2.5rem 2rem;border:1px solid var(--pc-border);border-radius:var(--pc-radius-xl);box-shadow:var(--pc-shadow-lg);max-width:28rem;width:100%;text-align:center;font-family:var(--pc-font-body)}.auth-guard-mascot{margin-bottom:.75rem;line-height:1}.auth-guard-loader{display:flex;align-items:center;justify-content:center;height:100vh}.auth-guard-spinner{height:3rem;width:3rem;border-radius:9999px;border-bottom:2px solid var(--pc-volt);animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (prefers-reduced-motion: reduce){.auth-guard-spinner{animation:none}}.auth-guard-title{font-family:var(--pc-font-display);font-size:1.6rem;font-weight:800;letter-spacing:var(--pc-tracking-display);margin-bottom:.75rem;color:var(--pc-ink-text)}.auth-guard-text{color:var(--pc-ink-text-soft);margin-bottom:1.5rem;line-height:1.6}.auth-guard-btn{background:var(--pc-volt);color:var(--pc-ink-900);padding:.7rem 1.6rem;border-radius:var(--pc-radius-md);border:none;cursor:pointer;transition:background-color .2s,transform .12s ease;font-family:var(--pc-font-body);font-weight:800;font-size:1rem;box-shadow:var(--pc-shadow-volt)}.auth-guard-btn:hover{background:var(--pc-volt-strong);transform:translateY(-2px)}.auth-guard-container.denied{background:var(--pc-paper)}.auth-guard-title.denied{color:var(--pc-coral)}.auth-guard-link{color:var(--pc-circuit);text-decoration:none;background:none;border:none;cursor:pointer;font-family:var(--pc-font-body);font-weight:700}.auth-guard-link:hover{text-decoration:underline}.skip-to-content{position:absolute;left:-10000px;top:auto;width:1px;height:1px;overflow:hidden;z-index:10000;padding:.75rem 1.5rem;background:var(--pc-circuit);color:#fff;text-decoration:none;font-weight:600;border-radius:0 0 8px}.skip-to-content:focus{position:fixed;left:0;top:0;width:auto;height:auto;overflow:visible}@keyframes skeleton-pulse{0%{background-position:-200px 0}to{background-position:calc(200px + 100%) 0}}.skeleton-pulse{background:linear-gradient(90deg,#e2e8f0 25%,#f1f5f9 37%,#e2e8f0 63%);background-size:200px 100%;animation:skeleton-pulse 1.4s ease infinite;border-radius:4px}.skeleton-page{padding:2rem;max-width:800px;margin:0 auto}.skeleton-header{height:32px;width:60%;margin-bottom:1.5rem;border-radius:6px}.skeleton-body{display:flex;flex-direction:column;gap:.75rem;margin-bottom:2rem}.skeleton-line{height:14px;border-radius:4px}.skeleton-cards-row{display:flex;gap:1rem}.skeleton-card-block{flex:1;height:120px;border-radius:8px}.skeleton-cards{display:flex;flex-direction:column;gap:1rem}.skeleton-card{display:flex;gap:1rem;padding:1rem;border-radius:8px;background:#fff}.skeleton-card-image{width:80px;height:80px;border-radius:8px;flex-shrink:0}.skeleton-card-content{flex:1;display:flex;flex-direction:column;gap:.5rem;justify-content:center}.skeleton-text-group{display:flex;flex-direction:column;gap:.5rem}.virtualiot-app{display:flex;height:100vh;background:#f8fafc;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;overflow:hidden;color:#1e293b}.app-nav-rail{width:64px;background:#1e293b;display:flex;flex-direction:column;align-items:center;padding:1rem 0;gap:1rem;z-index:100;flex-shrink:0;box-shadow:1px 0 10px #0000001a}.nav-rail-item{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;color:#94a3b8;cursor:pointer;transition:all .25s cubic-bezier(.4,0,.2,1);background:transparent;border:none;font-size:1.5rem}.nav-rail-item:hover{color:#f8fafc;background:#ffffff1a;transform:translateY(-2px)}.nav-rail-item.active{color:#fff;background:#3b82f6;box-shadow:0 4px 12px #3b82f666}.nav-rail-spacer{flex:1}.nav-rail-bottom{display:flex;flex-direction:column;align-items:center;gap:1.25rem;padding-bottom:1rem}.icon-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border:1px solid #e2e8f0;background:#fff;border-radius:6px;cursor:pointer;transition:all 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.component-palette{direction:rtl}[dir=rtl] .palette-category{direction:rtl;text-align:right}[dir=rtl] .navigation-controls{flex-direction:row-reverse}[dir=rtl] .nav-btn.prev-btn,[dir=rtl] .nav-btn.next-btn{transform:scaleX(-1)}[dir=rtl] .validation-results{direction:rtl}[dir=rtl] .validation-item{flex-direction:row-reverse}[dir=rtl] .hint-container,[dir=rtl] .hint-message{direction:rtl;text-align:right}[dir=rtl] .code-editor,[dir=rtl] .monaco-editor{direction:ltr!important;text-align:left!important}[dir=rtl] .blockly-workspace,[dir=rtl] .circuit-builder{direction:ltr!important}[dir=rtl] code,[dir=rtl] .pin-reference,[dir=rtl] .component-id,[dir=rtl] .technical-term,[dir=rtl] .number,[dir=rtl] .voltage,[dir=rtl] .resistance,[dir=rtl] .measurement{direction:ltr;display:inline-block}[dir=rtl] .progress-bar{direction:ltr}[dir=rtl] .transition-card{direction:rtl;text-align:right}[dir=rtl] .transition-header{flex-direction:row-reverse}[dir=rtl] .robot-mapping-board{direction:ltr!important}[dir=rtl] .quiz-interface{direction:rtl}[dir=rtl] .quiz-question{text-align:right}[dir=rtl] .quiz-answers,[dir=rtl] .media-board{direction:rtl}[dir=rtl] .media-caption{text-align:right}[dir=rtl] .btn-quit{transform:scaleX(-1)}[dir=rtl] input[type=text],[dir=rtl] textarea{text-align:right}[dir=rtl] [title]{direction:rtl}[dir=rtl] .flex-start{justify-content:flex-end}[dir=rtl] .flex-end{justify-content:flex-start}[dir=rtl] .modal-content,[dir=rtl] .teacher-metadata-view{direction:rtl;text-align:right}[lang=ar]{font-family:Noto Naskh Arabic,Scheherazade,Arial,sans-serif;line-height:1.8}[lang=ar] h1,[lang=ar] h2,[lang=ar] h3,[lang=ar] h4{font-weight:700}[lang=ar] p,[lang=ar] li{letter-spacing:0}[lang=ar] .card-title,[lang=ar] .activity-title{word-break:keep-all;overflow-wrap:break-word}.pc-btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.7rem 1.4rem;min-height:var(--touch-target-min, 48px);font-family:var(--pc-font-body);font-size:var(--pc-text-md);font-weight:700;border-radius:var(--pc-radius-md);border:none;cursor:pointer;text-decoration:none;transition:transform var(--pc-dur-fast) var(--pc-ease-out),box-shadow var(--pc-dur-med) var(--pc-ease-out),background-color var(--pc-dur-fast) var(--pc-ease-out)}.pc-btn:active{transform:translateY(1px)}.pc-btn--volt{background:var(--pc-volt);color:var(--pc-ink-900);box-shadow:var(--pc-shadow-volt)}.pc-btn--volt:hover{background:var(--pc-volt-strong);transform:translateY(-2px);box-shadow:0 12px 30px -8px var(--pc-volt-glow)}.pc-btn--primary{background:var(--pc-circuit);color:#fff;box-shadow:var(--pc-shadow-md)}.pc-btn--primary:hover{background:var(--pc-circuit-strong);transform:translateY(-2px)}.pc-btn--ghost{background:transparent;color:var(--pc-circuit);border:1.5px solid var(--pc-border-strong)}.pc-btn--ghost:hover{border-color:var(--pc-circuit);background:var(--pc-circuit-soft)}.pc-btn--on-ink{background:transparent;color:var(--pc-on-ink);border:1.5px solid var(--pc-on-ink-border)}.pc-btn--on-ink:hover{border-color:var(--pc-volt);color:var(--pc-volt)}.pc-btn--sm{min-height:36px;padding:.4rem .9rem;font-size:var(--pc-text-sm);border-radius:var(--pc-radius-sm)}.pc-btn:disabled{opacity:.55;cursor:default;transform:none;box-shadow:none}.pc-card{background:var(--pc-surface);border:1px solid var(--pc-border);border-radius:var(--pc-radius-lg);box-shadow:var(--pc-shadow-md);padding:1.5rem}.pc-card--flush{padding:0;overflow:hidden}.pc-card--ink{background:var(--pc-gradient-ink);border:1px solid var(--pc-ink-700);color:var(--pc-on-ink);box-shadow:var(--pc-shadow-lg)}.pc-card--bench{position:relative;transition:transform var(--pc-dur-med) var(--pc-ease-out),box-shadow var(--pc-dur-med) var(--pc-ease-out),border-color var(--pc-dur-med) var(--pc-ease-out)}.pc-card--bench:hover{transform:translateY(-3px);border-color:var(--pc-border-strong);box-shadow:var(--pc-shadow-lg)}.pc-card--bench:after{content:"";position:absolute;top:14px;inset-inline-end:14px;width:8px;height:8px;border-radius:50%;background:var(--pc-border-strong);transition:background var(--pc-dur-med) var(--pc-ease-out),box-shadow var(--pc-dur-med) var(--pc-ease-out)}.pc-card--bench:hover:after{background:var(--pc-volt);box-shadow:0 0 10px 2px var(--pc-volt-glow)}.pc-card-title{margin:0 0 .75rem;font-family:var(--pc-font-display);font-size:var(--pc-text-xl);font-weight:700;letter-spacing:var(--pc-tracking-display);color:inherit}.pc-chip{display:inline-flex;align-items:center;gap:.35rem;padding:.25rem .7rem;border-radius:var(--pc-radius-pill);font-size:var(--pc-text-sm);font-weight:700;line-height:1.4;background:var(--pc-surface-sunken);color:var(--pc-ink-text-soft);border:1px solid var(--pc-border)}.pc-chip--volt{background:var(--pc-volt-soft);color:#8a6100;border-color:#f2dfae}.pc-chip--mint{background:var(--pc-mint-soft);color:#14724a;border-color:#c4e9d6}.pc-chip--copper{background:var(--pc-copper-soft);color:var(--pc-copper-strong);border-color:#f0d4bf}.pc-chip--circuit{background:var(--pc-circuit-soft);color:var(--pc-circuit-strong);border-color:#c8d8f5}.pc-chip--on-ink{background:#ffffff14;color:var(--pc-on-ink);border-color:var(--pc-on-ink-border)}.pc-eyebrow{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--pc-font-mono);font-size:var(--pc-text-xs);font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--pc-copper)}.pc-eyebrow:before{content:"";width:22px;height:2px;border-radius:1px;background:currentColor;opacity:.6}.pc-trace{--trace-color: var(--pc-border-strong);--trace-node: var(--pc-volt);position:relative;height:2px;border:none;margin:2rem 0;background:radial-gradient(circle 3.5px at 15% 50%,var(--trace-node) 98%,transparent),radial-gradient(circle 3.5px at 50% 50%,var(--trace-node) 98%,transparent),radial-gradient(circle 3.5px at 85% 50%,var(--trace-node) 98%,transparent),linear-gradient(to right,transparent 0 2%,var(--trace-color) 2% 98%,transparent 98%);background-repeat:no-repeat}.pc-trace--on-ink{--trace-color: var(--pc-on-ink-border)}.pc-progress{position:relative;height:10px;border-radius:var(--pc-radius-pill);background:var(--pc-surface-sunken);border:1px solid var(--pc-border);overflow:visible}.pc-progress-fill{position:absolute;inset:0 auto 0 0;border-radius:var(--pc-radius-pill);background:linear-gradient(90deg,var(--pc-circuit) 0%,var(--pc-volt) 100%);transition:width var(--pc-dur-slow) var(--pc-ease-out);min-width:10px}.pc-progress-fill:after{content:"";position:absolute;top:50%;inset-inline-end:-2px;transform:translateY(-50%);width:14px;height:14px;border-radius:50%;background:var(--pc-volt);border:2.5px solid var(--pc-surface);box-shadow:0 0 10px 2px var(--pc-volt-glow)}.pc-input{padding:.65rem .9rem;border:1.5px solid var(--pc-border-strong);border-radius:var(--pc-radius-md);font-family:var(--pc-font-body);font-size:var(--pc-text-md);background:var(--pc-surface);color:var(--pc-ink-text);transition:border-color var(--pc-dur-fast) var(--pc-ease-out)}.pc-input:focus{outline:none;border-color:var(--pc-circuit);box-shadow:var(--pc-focus-ring)}.pc-input::placeholder{color:var(--pc-ink-text-faint)}@media (prefers-reduced-motion: reduce){.pc-btn,.pc-card--bench,.pc-progress-fill{transition:none}.pc-btn:hover,.pc-card--bench:hover{transform:none}}