:root{color-scheme:light;font-family:Avenir Next,Segoe UI,sans-serif;line-height:1.5;font-weight:400;color:#14202b;background:radial-gradient(circle at top left,rgba(241,173,91,.24),transparent 28%),radial-gradient(circle at bottom right,rgba(69,123,157,.22),transparent 24%),linear-gradient(180deg,#f4ede4,#ebf1f5 55%,#f8fafb);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--panel-bg: rgba(255, 255, 255, .76);--panel-border: rgba(17, 24, 39, .08);--panel-shadow: 0 22px 60px rgba(34, 46, 57, .12);--text-muted: #556271;--accent: #0d738c;--accent-strong: #0f4866;--danger: #d84c38;--success: #1f8a5b;--coach-overlay-width: 50vw;--space-title-gap: 10px;--space-paragraph-gap: 10px}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;overflow-x:hidden}button,input,textarea{font:inherit}#root{min-height:100vh}.app-shell{position:relative;min-height:100vh;padding:24px;overflow-x:hidden;overflow-y:visible}.workspace-shell{position:relative;z-index:1;display:flex;align-items:flex-start;gap:20px;width:100%;min-width:0;overflow:visible}.app-footer{position:relative;z-index:1;margin-top:22px;text-align:center;color:var(--text-muted);font-size:.82rem}.mission-sidebar-shell{position:absolute;inset:0 auto 0 0;z-index:30;width:var(--coach-overlay-width);pointer-events:none}.mission-sidebar-shell-open{animation:mission-sidebar-fade-in .18s ease}.mission-sidebar-panel{pointer-events:auto;width:var(--coach-overlay-width);max-width:calc(100vw - 48px);height:min(100%,calc(100vh - 64px));overflow:auto;min-width:0;padding:18px;border-radius:28px;background:linear-gradient(180deg,#f6fafcf5,#ecf2f7f0);border:1px solid rgba(13,72,102,.14);box-shadow:0 26px 60px #1f344629}.control-top-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:18px}.workspace-content{flex:1 1 auto;min-width:0;min-height:980px}.sidebar-title-block{margin-bottom:16px;padding:2px 2px 10px;border-bottom:1px solid rgba(13,72,102,.1)}.sidebar-title-block h2{margin:4px 0 0;font-size:1.35rem;line-height:1.05;letter-spacing:-.03em}.sidebar-kicker{margin:0;color:var(--accent-strong);font-size:.72rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase}.sidebar-tabs{display:inline-flex;gap:8px;padding:6px;margin-bottom:16px;border-radius:999px;background:#0d486614}.sidebar-tab{border:0;background:transparent;color:var(--text-muted);border-radius:999px;padding:10px 16px;cursor:pointer;font-weight:600}.sidebar-tab-active{background:#fff;color:var(--accent-strong);box-shadow:0 8px 22px #0e314424}.background-orb{position:absolute;width:420px;height:420px;border-radius:50%;filter:blur(80px);opacity:.4;pointer-events:none}.background-orb-left{top:-80px;left:-140px;background:#f7b25a73}.background-orb-right{right:-120px;top:160px;background:#2a74a652}.hero{position:relative;z-index:1;display:grid;grid-template-columns:1.4fr 1fr;gap:24px;align-items:end;margin-bottom:24px}.hero h1{margin:6px 0 0;max-width:15ch;font-size:clamp(2.2rem,4vw,4.5rem);line-height:.95;letter-spacing:-.04em}.hero-copy{margin:0;max-width:56ch;color:var(--text-muted);font-size:1.02rem}.eyebrow{margin:0;color:var(--accent-strong);text-transform:uppercase;letter-spacing:.24em;font-size:.78rem;font-weight:700}.layout{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:20px;align-items:stretch;width:100%;min-width:0}.left-column,.right-column{display:grid;gap:20px;min-width:0}.right-column{height:100%;grid-template-rows:auto auto minmax(0,1fr);align-content:stretch;overflow:visible}.panel{border:1px solid var(--panel-border);background:var(--panel-bg);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);box-shadow:var(--panel-shadow);border-radius:24px;padding:20px}.panel-header{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px}.panel-header h2{margin:0;font-size:1rem;letter-spacing:.02em}.panel-header span{color:var(--text-muted);font-size:.92rem}.controls-header{display:flex;align-items:center;justify-content:space-between;gap:10px;min-width:0}.controls-header h2{margin:0;font-size:1rem;letter-spacing:.02em}.controls-header span{color:var(--text-muted);font-size:.92rem}.mission-metrics-compact{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:8px}.mission-metrics-panel{padding:14px 16px}.mission-metrics-panel .panel-header{margin-bottom:10px}.mission-metrics-header-actions{display:flex;align-items:center;gap:10px}.lesson-badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;font-size:.78rem;font-weight:700;letter-spacing:.02em}.lesson-badge-required{background:#1f8a5b1f;color:#0f5e3a}.lesson-badge-stretch{background:#0d48661f;color:#0f4866}.mission-picker-button{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border:1px solid rgba(13,72,102,.16);border-radius:12px;background:#ffffffd6;color:#173043;min-width:200px;cursor:pointer;font:inherit;text-align:left}.mission-picker-button:hover{background:#fffffff5;border-color:#0d48663d}.mission-picker-button .mission-picker-label{color:var(--text-muted);font-size:.84rem}.mission-picker-button .mission-picker-value{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mission-picker-button .mission-picker-chevron{font-size:.65rem;color:var(--text-muted)}.mission-selector-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:140;display:flex;align-items:center;justify-content:center;padding:24px;background:#14202b80;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);animation:mission-selector-fade-in .16s ease}@keyframes mission-selector-fade-in{0%{opacity:0}to{opacity:1}}.mission-selector-dialog{width:min(860px,calc(100vw - 48px));max-height:min(88vh,900px);display:flex;flex-direction:column;background:var(--panel-bg);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border:1px solid var(--panel-border);border-radius:22px;box-shadow:0 18px 48px #222e3942;overflow:hidden;animation:mission-selector-slide-up .22s ease-out}@keyframes mission-selector-slide-up{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}.mission-selector-header{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--panel-border)}.mission-selector-header h2{margin:0;font-size:1.15rem;letter-spacing:-.02em}.mission-selector-close{width:36px;height:36px;border:0;border-radius:50%;background:#0d486614;color:var(--text-muted);font-size:1.5rem;line-height:1;cursor:pointer}.mission-selector-close:hover{background:#0d486624;color:#173043}.mission-selector-search{padding:14px 20px;border-bottom:1px solid var(--panel-border)}.mission-selector-input{width:100%;padding:10px 14px;border:1px solid rgba(13,72,102,.16);border-radius:12px;font-size:.94rem}.mission-selector-input:focus{outline:2px solid var(--accent);outline-offset:2px}.mission-selector-filters{padding:14px 20px;border-bottom:1px solid var(--panel-border);display:flex;flex-direction:column;gap:12px;flex-shrink:0}.mission-selector-filter-actions{display:flex;align-items:center;justify-content:space-between;gap:12px}.mission-selector-results{color:var(--text-muted);font-size:.82rem}.mission-selector-clear{border:1px solid rgba(13,72,102,.2);background:#ffffffdb;color:var(--accent-strong);border-radius:10px;padding:6px 10px;font-size:.8rem;font-weight:600;cursor:pointer}.mission-selector-clear:disabled{opacity:.45;cursor:not-allowed}.mission-selector-filter-group{display:flex;flex-direction:column;gap:6px}.mission-selector-filter-label{font-size:.76rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em}.mission-selector-chip-wrap{display:flex;flex-wrap:wrap;gap:6px}.mission-selector-select{width:100%;max-width:280px;padding:8px 10px;border-radius:10px;border:1px solid rgba(13,72,102,.18);background:#ffffffe6;color:#173043}.mission-selector-chip{font-size:.8rem;padding:4px 10px;border-radius:999px}.mission-selector-chip-info{background:#0d486614;color:var(--text-muted)}.mission-selector-chip-btn{border:1px solid rgba(13,72,102,.2);background:#ffffffb3;cursor:pointer;font:inherit}.mission-selector-chip-btn:hover{background:#ffffffe6}.mission-selector-chip-active{background:#0d738c2e;border-color:var(--accent);color:var(--accent-strong)}.mission-selector-list{flex:1;min-height:0;overflow-y:auto;padding:16px 20px}@media (max-width: 860px){.mission-selector-backdrop{padding:12px}.mission-selector-dialog{width:min(860px,calc(100vw - 24px));max-height:calc(100vh - 24px);border-radius:16px}.mission-selector-filter-actions{flex-direction:column;align-items:flex-start}.mission-selector-select{max-width:100%}}.mission-selector-empty{margin:0;padding:24px;text-align:center;color:var(--text-muted)}.mission-selector-group{margin-bottom:20px}.mission-selector-group:last-child{margin-bottom:0}.mission-selector-group-title{margin:0 0 10px;font-size:.88rem;font-weight:600;color:var(--accent-strong);text-transform:uppercase;letter-spacing:.1em}.mission-selector-items{list-style:none;margin:0;padding:0}.mission-selector-item{display:flex;flex-direction:column;align-items:flex-start;gap:4px;width:100%;padding:12px 14px;margin-bottom:6px;border:1px solid transparent;border-radius:14px;background:#fff9;cursor:pointer;font:inherit;text-align:left}.mission-selector-item:hover{background:#ffffffe6;border-color:#0d48661f}.mission-selector-item-selected{background:#0d738c1f;border-color:var(--accent)}.mission-selector-item-name{font-size:.94rem;font-weight:500}.mission-selector-item-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px}.mission-selector-item-difficulty{font-size:.78rem;color:var(--text-muted)}.mission-selector-item-badge{font-size:.7rem;padding:2px 6px;border-radius:6px}.mission-selector-item-badge-required{background:#1f8a5b1f;color:#0f5e3a}.mission-selector-item-badge-stretch{background:#0d48661f;color:#0f4866}.mission-selector-item .mission-selector-item-label{font-size:.7rem;padding:2px 6px;border-radius:6px;background:#0d486614;color:var(--text-muted)}.mission-metric-chip{padding:8px 10px;border-radius:14px;background:#ffffffb8;border:1px solid rgba(17,24,39,.06)}.mission-metric-chip strong{display:block;line-height:1.2;font-size:.98rem}.mission-metric-chip span{color:var(--text-muted);font-size:.76rem}.controls-row{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:18px}.control-action-split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;align-items:center;margin-bottom:14px}.control-left-actions,.control-right-actions{min-width:0}.control-left-actions .controls-row{margin-bottom:0}.control-right-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px;flex-wrap:wrap}.control-right-actions .language-switch{max-width:100%}.language-switch{display:inline-flex;gap:8px;padding:6px;border-radius:999px;background:#0d486614}.language-button{border:0;background:transparent;color:var(--text-muted);border-radius:999px;padding:8px 14px;cursor:pointer}.language-button-active{background:#fff;color:var(--accent-strong);box-shadow:0 8px 22px #0e314424}.button{border:1px solid rgba(13,72,102,.16);background:#ffffffc7;color:#173043;border-radius:999px;padding:10px 16px;cursor:pointer;transition:transform .16s ease,border-color .16s ease,background .16s ease}.button:hover:enabled{transform:translateY(-1px);border-color:#0d486657}.button:disabled{opacity:.46;cursor:not-allowed}.button-primary{background:linear-gradient(135deg,#0f4866,#0d738c);color:#fff}.sidebar-launch-button{display:inline-flex;align-items:center;gap:10px}.sidebar-launch-icon{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;flex:0 0 20px}.speed-control{display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center}.speed-control span,.speed-control strong{font-size:.94rem}.speed-control input{width:100%}.sim-canvas{display:block;width:100%;height:auto;border-radius:18px;border:1px solid rgba(15,72,102,.12)}.panel-console{min-height:0}.console-output{height:210px;overflow:auto;padding:14px;border-radius:18px;background:#0d1218eb;color:#eef6fb;font-family:JetBrains Mono,SFMono-Regular,monospace;font-size:.86rem}.console-entry{display:grid;gap:4px;padding:0 0 10px}.console-entry+.console-entry{margin-top:10px;border-top:1px solid rgba(255,255,255,.08);padding-top:10px}.console-meta{color:#81b7d4;font-size:.76rem}.console-entry-system .console-meta{color:#ffcb7a}.console-empty{margin:0;color:#eef6fbc7}.panel-editor{display:flex;flex-direction:column;height:100%;min-height:0}.editor-shell{flex:1 1 auto;min-height:620px;overflow:hidden;border-radius:18px;border:1px solid rgba(17,24,39,.08)}.mission-description{margin:0 0 20px;color:var(--text-muted);line-height:1.65}.mission-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-bottom:18px}.mission-stats div,.mission-status-grid{padding:14px;border-radius:16px;background:#ffffffb8;border:1px solid rgba(17,24,39,.06)}.mission-stats strong{display:block;font-size:1.35rem}.mission-stats span,.mission-status-grid span{color:var(--text-muted);font-size:.88rem}.mission-status-grid{display:grid;grid-template-columns:1fr auto;gap:8px 14px;margin-bottom:18px}.guide-tabs{display:inline-flex;flex-wrap:wrap;gap:8px;padding:6px;margin-bottom:18px;border-radius:999px;background:#0d486614}.guide-header-actions{display:flex;align-items:center;gap:10px}.guide-close-button{padding:8px 12px}.guide-tab{border:0;background:transparent;color:var(--text-muted);border-radius:999px;padding:8px 14px;cursor:pointer}.guide-tab-active{background:#fff;color:var(--accent-strong);box-shadow:0 8px 22px #0e314424}.guide-grid{display:grid;gap:14px;min-width:0}.guide-card,.guide-hint{min-width:0;padding:16px;border-radius:16px;background:#ffffffb8;border:1px solid rgba(17,24,39,.06);overflow:hidden}.guide-context-card{margin-bottom:14px}.guide-card h3{margin:0 0 var(--space-title-gap);font-size:.95rem;line-height:1.35}.accordion-trigger{width:100%;display:flex;align-items:center;justify-content:space-between;gap:10px;margin:0;border:0;padding:0;background:transparent;color:#173043;cursor:pointer;text-align:left;font-size:.95rem;font-weight:600}.accordion-chevron{width:8px;height:8px;border-right:2px solid rgba(23,48,67,.85);border-bottom:2px solid rgba(23,48,67,.85);transform:translateY(-2px) rotate(45deg);transition:transform .14s ease;flex:0 0 auto}.accordion-item-open .accordion-chevron{transform:translateY(2px) rotate(-135deg)}.accordion-content{margin-top:12px}.guide-method{margin-top:14px;padding-top:14px;border-top:1px solid rgba(17,24,39,.08)}.guide-method:first-of-type{margin-top:0;padding-top:0;border-top:0}.guide-method h4{margin:0 0 var(--space-title-gap);font-size:.88rem;color:#173043}.guide-card p,.guide-hint p{margin:0;color:#213241;overflow-wrap:anywhere;line-height:1.65}.guide-card p+p,.guide-hint p+p{margin-top:var(--space-paragraph-gap)}.guide-code{max-width:100%;margin:14px 0 0;padding:12px 14px;overflow:auto;border-radius:14px;background:#0d1218f2;color:#eef6fb;font-family:JetBrains Mono,SFMono-Regular,monospace;font-size:.82rem}.guide-starter-header{display:flex;justify-content:space-between;gap:16px;align-items:start}.guide-starter-header>div p{margin-top:6px}.solution-lock-form{display:grid;gap:12px;margin-top:14px}.solution-lock-field{display:grid;gap:6px;color:var(--text-muted);font-size:.9rem;font-weight:600}.solution-lock-field input{width:100%;min-width:0;padding:11px 14px;border:1px solid rgba(13,72,102,.16);border-radius:14px;background:#ffffffe0;color:#173043}.guide-unlock-error,.guide-unlock-success{margin-top:12px}.guide-unlock-error{color:var(--danger)}.guide-unlock-success{color:var(--success)}.reference-method .accordion-trigger{font-family:JetBrains Mono,SFMono-Regular,monospace;font-size:.83rem;color:#173043}.reference-method{margin-top:16px;padding:16px}.reference-method p+p{margin-top:var(--space-paragraph-gap)}.reference-method .guide-code{margin-top:16px}.reference-card>p+.guide-method{margin-top:16px;padding-top:16px;border-top:1px solid rgba(17,24,39,.08)}.reference-card .guide-method:first-of-type{margin-top:16px;padding-top:16px;border-top:1px solid rgba(17,24,39,.08)}.reference-card .reference-method+p{margin-top:16px}.reference-card p+p{margin-top:var(--space-paragraph-gap)}.rules-list{display:grid;gap:10px}.rules-list p{margin:0;padding:12px 14px;border-radius:14px;background:#ffffffa8;border:1px solid rgba(17,24,39,.06);color:#213241}.status{display:inline-flex;align-items:center;padding:6px 12px;border-radius:999px;font-size:.84rem;text-transform:capitalize}.status-ready,.status-running{background:#0d738c1a;color:var(--accent-strong)}.status-success{background:#1f8a5b1f;color:var(--success)}.status-failed{background:#d84c381f;color:var(--danger)}@keyframes mission-sidebar-fade-in{0%{opacity:0;transform:translate(-8px)}to{opacity:1;transform:translate(0)}}@media (max-width: 1366px){.app-shell{padding:24px}.mission-sidebar-shell-open,.mission-sidebar-panel{width:var(--coach-overlay-width)}.layout{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:16px}}@media (max-width: 1180px){.app-shell{padding:18px}.hero{grid-template-columns:1fr;gap:16px}.mission-sidebar-shell-open,.mission-sidebar-panel{width:var(--coach-overlay-width)}.layout{grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);gap:14px}.panel{padding:16px}.workspace-content{min-height:0}.control-action-split{grid-template-columns:1fr;gap:10px}.control-right-actions{justify-content:flex-start}.sidebar-tab{padding:9px 12px}.hero h1{max-width:11ch}.mission-metrics-compact{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (max-width: 1320px){.control-action-split{grid-template-columns:1fr;gap:10px}.control-right-actions{justify-content:flex-start}}@media (max-width: 1000px){.app-shell{padding:16px}.layout{grid-template-columns:1fr}.workspace-shell{flex-direction:column}.mission-sidebar-shell,.mission-sidebar-shell-open{width:var(--coach-overlay-width)}.mission-sidebar-panel{width:var(--coach-overlay-width);max-width:var(--coach-overlay-width);padding:14px}.sidebar-tabs{margin-top:8px}}@media (max-width: 720px){.app-shell{padding:18px}.panel{padding:16px;border-radius:20px}.controls-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.control-top-row{align-items:stretch}.control-action-split{gap:8px}.speed-control{grid-template-columns:1fr}.mission-metrics-compact{grid-template-columns:repeat(2,minmax(0,1fr))}.mission-metrics-header-actions{flex-wrap:wrap;justify-content:flex-end}.mission-picker-button{min-width:0;width:100%}.guide-starter-header{flex-direction:column}.editor-shell{min-height:480px}}
