:root{--ink:#071d2b;--ink2:#0e2e3e;--teal:#00a58e;--mint:#65e4c2;--gold:#ffca62;--coral:#ff7868;--paper:#f5f8f7;--white:#fff;--muted:#647783;--line:#dbe5e4;--shadow:0 18px 50px rgba(7,29,43,.12);--radius:18px;--side:264px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.55 Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.skip{position:fixed;left:12px;top:-80px;background:#fff;padding:10px;z-index:99}.skip:focus{top:12px}button{font:inherit}.sidebar{position:fixed;inset:0 auto 0 0;width:var(--side);background:linear-gradient(160deg,#061a27,#0c3340);color:#fff;padding:26px 18px;z-index:30;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:12px;padding:0 8px 28px}.brand-mark{width:46px;height:46px;border:1px solid rgba(101,228,194,.55);border-radius:50% 50% 45% 55%;display:grid;place-items:center;color:var(--mint);font-weight:900;letter-spacing:-1px;box-shadow:inset 0 0 0 6px rgba(101,228,194,.05)}.brand strong,.brand span{display:block}.brand strong{font-size:15px}.brand span{font-size:12px;color:#a9c5cc;margin-top:2px}.sidebar nav{display:grid;gap:4px}.nav-btn{width:100%;display:flex;align-items:center;gap:12px;border:0;background:transparent;color:#c8d9dd;text-align:left;padding:11px 12px;border-radius:11px;cursor:pointer;font-size:14px}.nav-btn:hover,.nav-btn.active{background:rgba(101,228,194,.11);color:#fff}.nav-btn.active{box-shadow:inset 3px 0 var(--mint)}.nav-icon{width:22px;text-align:center}.side-foot{margin-top:auto;padding:18px 8px 0;border-top:1px solid rgba(255,255,255,.1)}.language{display:flex;background:rgba(255,255,255,.08);border-radius:10px;padding:3px;width:max-content}.lang{border:0;color:#a9c5cc;background:transparent;padding:5px 13px;border-radius:8px;cursor:pointer}.lang.active{background:var(--mint);color:var(--ink);font-weight:800}.side-foot p{font-size:11px;color:#8ba8af;margin:13px 0 0}.topbar{position:fixed;top:0;left:var(--side);right:0;height:72px;background:rgba(245,248,247,.86);backdrop-filter:blur(15px);border-bottom:1px solid 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small{display:block;color:var(--muted)}.day{position:relative;padding-left:50px}.day::before{content:attr(data-day);position:absolute;left:0;top:0;background:var(--ink);color:var(--mint);width:36px;height:36px;border-radius:12px;display:grid;place-items:center;font-weight:900}.day.done::before{background:var(--teal);color:#fff}.warning{border-left:4px solid var(--gold);background:#fffaf0}.critical{border-left:4px solid var(--coral);background:#fff6f4}.quote{font-size:21px;line-height:1.4;border-left:3px solid var(--mint);padding-left:18px;margin:18px 0}.pill-row{display:flex;gap:7px;flex-wrap:wrap}.tabs{display:flex;gap:5px;flex-wrap:wrap;margin:22px 0}.tab{border:1px solid var(--line);background:#fff;color:var(--muted);padding:8px 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16px;border-radius:11px;font-weight:800;cursor:pointer}.btn:hover{transform:translateY(-1px)}.btn.secondary{background:#e5efed;color:var(--ink)}.btn.gold{background:var(--gold);color:var(--ink)}textarea{width:100%;min-height:170px;border:1px solid var(--line);border-radius:13px;padding:14px;font:inherit;resize:vertical}textarea:focus,button:focus-visible{outline:3px solid rgba(0,165,142,.3);outline-offset:2px}.timer{font-variant-numeric:tabular-nums;font-size:32px;font-weight:900;letter-spacing:1px}.flash-wrap{perspective:1000px;max-width:760px;margin:20px auto}.flashcard{height:380px;position:relative;transform-style:preserve-3d;transition:.55s;cursor:pointer}.flashcard.flipped{transform:rotateY(180deg)}.flash-face{position:absolute;inset:0;backface-visibility:hidden;border-radius:24px;padding:36px;display:flex;flex-direction:column;justify-content:center;box-shadow:var(--shadow)}.flash-front{background:var(--ink);color:#fff}.flash-back{background:#fff;border:1px solid var(--line);transform:rotateY(180deg)}.flash-face small{color:var(--mint);text-transform:uppercase;letter-spacing:1.5px}.flash-face h2{font-size:30px}.quiz-option{display:block;width:100%;text-align:left;margin:9px 0;padding:14px 16px;border:1px solid var(--line);background:#fff;border-radius:12px;cursor:pointer}.quiz-option.selected{border-color:var(--teal);background:#ebfaf6}.quiz-option.correct{border-color:#2e9e6f;background:#e8f8ef}.quiz-option.wrong{border-color:var(--coral);background:#fff0ed}.source{padding:16px 0;border-bottom:1px solid var(--line)}.source a{color:#087c6d}.two-col{columns:2;column-gap:32px}.two-col li{break-inside:avoid;margin-bottom:8px}.toast{position:fixed;right:24px;bottom:24px;background:var(--ink);color:#fff;padding:12px 18px;border-radius:11px;opacity:0;transform:translateY(10px);pointer-events:none;transition:.25s;z-index:50}.toast.show{opacity:1;transform:none}@media(max-width:1000px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}.process{grid-template-columns:1fr}.rubric{grid-template-columns:repeat(3,1fr)}}@media(max-width:760px){:root{--side:0px}.sidebar{transform:translateX(-100%);transition:.3s;width:278px}.sidebar.open{transform:none}.topbar{left:0;padding:0 18px}.menu{display:block;margin-right:12px}.week-chip{font-size:12px}.score span{display:none}main{margin-left:0;padding:94px 18px 45px}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.matrix{grid-template-columns:repeat(5,78vw)}h1{font-size:34px}.flashcard{height:460px}.flash-face{padding:25px}.rubric{grid-template-columns:1fr 1fr}.two-col{columns:1}}
.sim-pool,.sim-answer{display:grid;gap:9px;min-height:58px;margin:14px 0;padding:10px;border:1px dashed var(--line);border-radius:13px}.sim-answer{background:#eff8f6}.sim-step,.scenario{border:1px solid var(--line);background:#fff;color:var(--ink);padding:13px;border-radius:11px;text-align:left;cursor:pointer}.sim-step:hover,.scenario:hover{border-color:var(--teal)}.checkline{display:block;padding:11px 0;border-bottom:1px solid var(--line)}.checkline input{accent-color:var(--teal);width:18px;height:18px;vertical-align:middle;margin-right:8px}.concept-score,.coach-score{display:flex;align-items:center;gap:16px;margin-top:18px;padding:15px;border-radius:13px;background:#eff8f6}.concept-score strong,.coach-score strong{font-size:30px;color:var(--teal)}.choice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.slider-label{display:grid;grid-template-columns:1fr 30px;gap:4px 12px;padding:8px 0;border-bottom:1px solid var(--line)}.slider-label input{grid-column:1/-1;accent-color:var(--teal)}#radar{display:block;max-width:460px;margin:auto}.radar-ring{fill:none;stroke:#d6e4e2;stroke-width:1}.radar-axis{stroke:#d6e4e2}.radar-label{font-size:13px;font-weight:900;text-anchor:middle;dominant-baseline:middle;fill:var(--ink)}.radar-value{fill:rgba(0,165,142,.24);stroke:var(--teal);stroke-width:3}.rubric-4{grid-template-columns:repeat(4,1fr);margin-top:14px}.coral-rate{background:var(--coral)}
@media(max-width:760px){.choice-grid{grid-template-columns:1fr}.rubric-4{grid-template-columns:1fr 1fr}.concept-score,.coach-score{align-items:flex-start}}
@media print{.sidebar,.topbar,.controls,.toast{display:none!important}main{margin:0;padding:20px}.view{display:block!important;break-after:page}.card{box-shadow:none}}

/* v3 — executive study cockpit */
:root{--side:252px;--radius:20px;--shadow-soft:0 10px 32px rgba(7,29,43,.07);--shadow-lift:0 18px 48px rgba(7,29,43,.12)}
body{background:radial-gradient(circle at 78% -12%,rgba(101,228,194,.13),transparent 32rem),var(--paper);text-rendering:optimizeLegibility}
button,input,textarea{touch-action:manipulation}.sidebar{padding:22px 14px;border-right:1px solid rgba(255,255,255,.08)}.brand{padding:0 10px 20px}.sidebar nav{gap:2px;overflow:auto;scrollbar-width:none}.sidebar nav::-webkit-scrollbar{display:none}.nav-btn{min-height:43px;padding:9px 11px;font-size:.875rem}.nav-btn.active{background:rgba(101,228,194,.14);box-shadow:inset 3px 0 var(--mint)}.nav-icon{font-size:1rem}.side-foot{padding:14px 10px 0}.side-foot p{font-size:.75rem;line-height:1.4}.lang{min-height:38px}.topbar{height:64px;padding:0 28px;background:rgba(245,248,247,.91)}.score{gap:10px}.mini-track{width:84px;height:5px;background:#d8e5e2;border-radius:10px;overflow:hidden}.mini-track i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--teal),var(--mint));transition:width .35s ease}main{padding:94px 30px 72px}.view{max-width:1260px;margin:0 auto}.lead{line-height:1.6;margin-bottom:24px}h1{font-size:clamp(2rem,3vw,2.875rem)}h2{font-size:1.45rem}.card,.question-card{box-shadow:var(--shadow-soft);border-color:rgba(210,225,223,.9)}@media(hover:hover){.card{transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}.card:hover{border-color:#cbdedb;box-shadow:var(--shadow-lift)}.btn,.nav-btn,.tab,.quiz-option,.scenario,.sim-step{transition:transform .18s ease,background .18s ease,border-color .18s ease}}
.btn,.tab,.quiz-option,.scenario,.sim-step,.accordion button{min-height:44px}.btn:active,.tab:active,.dock-btn:active{transform:scale(.98)}textarea{background:#fff;line-height:1.6}.tabs{position:sticky;top:72px;z-index:8;padding:6px;background:rgba(245,248,247,.92);backdrop-filter:blur(12px);border-radius:13px}.matrix{scroll-snap-type:x proximity}.matrix-card{scroll-snap-align:start}.source a{overflow-wrap:anywhere}.nav-scrim,.mobile-dock{display:none}

@media(max-width:1000px) and (min-width:761px){:root{--side:224px}.sidebar{padding-inline:10px}.brand strong{font-size:.875rem}.nav-btn{font-size:.8125rem}.topbar{padding-inline:22px}main{padding-inline:24px}.grid-4{grid-template-columns:repeat(2,1fr)}}

@media(max-width:760px){
 :root{--side:0px;--radius:17px}body{background:linear-gradient(180deg,#f2f8f6 0,#f7f9f8 260px)}body.nav-open{overflow:hidden}.sidebar{width:min(86vw,320px);padding:18px 14px calc(22px + env(safe-area-inset-bottom));transform:translateX(-105%);box-shadow:24px 0 70px rgba(0,0,0,.25);transition:transform .25s cubic-bezier(.2,.8,.2,1)}.sidebar.open{transform:none}.brand{padding-bottom:14px}.brand-mark{width:42px;height:42px}.sidebar nav{gap:1px}.nav-btn{min-height:44px;font-size:.9rem}.side-foot{margin-top:12px}.nav-scrim{display:block;position:fixed;inset:0;border:0;background:rgba(4,20,29,.5);backdrop-filter:blur(2px);z-index:25;opacity:0;pointer-events:none;transition:opacity .2s}.nav-open .nav-scrim{opacity:1;pointer-events:auto}.topbar{height:62px;left:0;padding:0 14px;border-bottom-color:rgba(210,225,223,.85)}.menu{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;color:var(--ink);font-size:1.35rem}.menu:active{background:#e5efed}.week-chip{font-size:.75rem;white-space:nowrap}.score{gap:8px}.score strong{font-size:1.05rem}.score span{display:none}.mini-track{width:46px;height:5px}main{margin-left:0;padding:82px 15px calc(96px + env(safe-area-inset-bottom))}.view{width:100%}h1{font-size:clamp(1.8rem,8vw,2.15rem);letter-spacing:-1.2px;margin-bottom:10px}h2{font-size:1.3rem}h3{font-size:1.03rem}.eyebrow{font-size:.72rem;letter-spacing:1.35px;margin-bottom:7px}.lead{font-size:1rem;line-height:1.55;margin-bottom:20px}.grid{gap:13px}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.card,.question-card{padding:18px;border-radius:var(--radius);box-shadow:0 5px 20px rgba(7,29,43,.055)}.metric-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.metric-grid .card{padding:15px;min-width:0}.metric-grid .metric{font-size:1.75rem}.metric-grid .eyebrow{font-size:.65rem}.metric-grid p{font-size:.78rem;line-height:1.4;margin-bottom:0}.task{padding:12px 0}.day{padding-left:45px}.day::before{width:34px;height:34px;border-radius:10px}.task input{width:20px;height:20px}.task small{font-size:.82rem;line-height:1.45;margin-top:2px}.quote{font-size:1.1rem}.tabs{top:66px;display:flex;flex-wrap:nowrap;overflow-x:auto;margin:17px -4px;padding:5px 4px;scrollbar-width:none}.tabs::-webkit-scrollbar{display:none}.tab{flex:0 0 auto;padding:9px 13px}.matrix{grid-template-columns:repeat(5,82vw);margin-right:-15px;padding-right:15px}.matrix-card{min-height:150px}.process-step{padding:17px}.process-step strong{font-size:1.9rem}.choice-grid{grid-template-columns:1fr}.kpi{font-size:.9rem}.accordion button{padding:15px}.accordion-content{padding:0 15px 15px}.question-card h3{font-size:1.35rem;line-height:1.3}.question-card .controls{display:grid;grid-template-columns:auto 1fr 44px 44px}.question-card .timer{text-align:center;align-self:center}.timer{font-size:1.55rem}.controls{gap:8px}.btn{padding:10px 14px}.rubric,.rubric-4{grid-template-columns:1fr 1fr}.rubric div{padding:10px 7px;font-size:.78rem}.rubric strong{font-size:1.25rem}.flash-wrap{margin:14px auto}.flashcard{height:340px}.flash-face{padding:24px;border-radius:20px}.flash-face h2{font-size:1.45rem;line-height:1.35}.slider-label{font-size:.9rem}.concept-score,.coach-score{align-items:flex-start;padding:13px}.concept-score strong,.coach-score strong{font-size:1.65rem}.two-col{columns:1}.mobile-dock{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);left:10px;right:10px;bottom:calc(8px + env(safe-area-inset-bottom));min-height:66px;padding:6px;background:rgba(7,29,43,.95);backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,.1);border-radius:18px;box-shadow:0 16px 46px rgba(7,29,43,.28);z-index:22}.dock-btn{display:flex;min-width:0;min-height:52px;flex-direction:column;align-items:center;justify-content:center;gap:3px;border:0;border-radius:13px;background:transparent;color:#9db4ba}.dock-btn span{font-size:1rem;line-height:1}.dock-btn small{max-width:100%;font-size:.64rem;line-height:1.15;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.dock-btn.active{background:rgba(101,228,194,.14);color:var(--mint)}.toast{left:15px;right:15px;bottom:calc(88px + env(safe-area-inset-bottom));text-align:center}.source{padding:13px 0}
}

@media(max-width:390px){.week-chip{display:none}.metric-grid{gap:8px}.metric-grid .card{padding:13px}.mobile-dock{left:6px;right:6px}.dock-btn small{font-size:.64rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.view.active{animation:none}.sidebar,.nav-scrim,.flashcard,.mini-track i{transition:none}}
.reference-stack{display:grid;gap:9px;margin-top:18px}.reference-stack details{border:1px solid var(--line);border-radius:14px;background:#f9fbfa;overflow:hidden}.reference-stack summary{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:48px;padding:12px 15px;cursor:pointer;list-style:none}.reference-stack summary::-webkit-details-marker{display:none}.reference-stack summary::after{content:'+';font-size:1.25rem;color:var(--teal);font-weight:900}.reference-stack details[open] summary::after{content:'−'}.reference-stack .answer-guide{margin:0;border-radius:0}.model-answer{border-color:rgba(0,165,142,.35)!important;background:linear-gradient(145deg,#f2fbf8,#fff)!important}.new-badge{margin-left:auto;padding:3px 7px;border-radius:20px;background:var(--mint);color:var(--ink);font-size:.65rem;letter-spacing:.08em}.model-body{padding:0 15px 16px}.model-note{padding:10px 12px;border-left:3px solid var(--gold);background:#fff9ea;color:#6b561e;font-size:.88rem}.answer-part{display:grid;grid-template-columns:128px 1fr;gap:14px;padding:13px 0;border-bottom:1px solid var(--line)}.answer-part>span{color:#087c6d;font-size:.75rem;font-weight:900;letter-spacing:.07em;text-transform:uppercase}.answer-part p{margin:0;line-height:1.65}.model-body>.btn{margin-top:15px}
@media(max-width:760px){.reference-stack summary{padding:12px 13px}.model-body{padding:0 13px 14px}.answer-part{grid-template-columns:1fr;gap:4px;padding:12px 0}.answer-part p{font-size:.94rem}.model-note{font-size:.82rem}}