/* Student showcase — the scripted product tour behind "See FutureUP in action".
   Scenes are laid out at a fixed "app size" (880x600, or 440x600 on narrow screens) and the
   whole canvas is scaled to fit its container, so type, spacing, and proportions match the real
   student screens at any width. Markup + motion live in student-showcase.js. */

.stour{--s:1;--cw:880;--ch:600;position:relative;min-width:0}
.stour-frame{overflow:hidden;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--paper-raised);box-shadow:var(--shadow-lg)}
.stour-viewport{position:relative;width:100%;height:calc(var(--ch)*var(--s)*1px);overflow:hidden}
.stour-canvas{position:absolute;left:0;top:0;width:calc(var(--cw)*1px);height:calc(var(--ch)*1px);transform:scale(var(--s));transform-origin:0 0;background:var(--paper);color:var(--ink);font:400 13px/1.45 var(--font-sans);letter-spacing:0;text-align:left;-webkit-font-smoothing:antialiased;user-select:none}
.stour-canvas *{box-sizing:border-box}
.stour-canvas h2,.stour-canvas h3,.stour-canvas h4,.stour-canvas p{margin:0}
.stour-canvas b,.stour-canvas strong,.stour-canvas h2,.stour-canvas h3,.stour-canvas h4{font-weight:600}
.stour-ico{width:16px;height:16px;flex:0 0 auto;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.stour-disclosure{padding:9px 16px;border-top:1px solid var(--border);background:var(--surface-raised);color:var(--text-muted);font-size:.72rem;font-weight:500;line-height:1.4}

/* ---- app chrome ---- */
.stour-topbar{position:relative;z-index:3;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;height:46px;padding:0 18px;border-bottom:1px solid var(--line);background:var(--paper-raised)}
.stour-brand{display:flex;align-items:center;gap:8px;font:700 14px var(--font-sans);letter-spacing:-.02em;color:var(--brand-wordmark)}
.stour-brand img{width:26px;height:26px}
.stour-tabs{display:flex;gap:24px}
.stour-tabs span{position:relative;padding:15px 0;color:var(--ink-soft);font-size:12.5px;font-weight:500;white-space:nowrap;cursor:pointer;transition:color .25s}
.stour-tabs span::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;border-radius:2px;background:var(--green-deep);transform:scaleX(0);transition:transform .35s var(--ease)}
.stour-tabs span.is-active{color:var(--ink);font-weight:600}
.stour-tabs span.is-active::after{transform:scaleX(1)}
.stour-user{justify-self:end;display:flex;align-items:center;gap:9px}
.stour-xp{padding:4px 10px;border-radius:99px;background:var(--green-pale);color:var(--green-deep);font-size:11.5px;font-weight:600;font-variant-numeric:tabular-nums}
.stour-avatar{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--violet-pale);color:var(--violet-deep);font-size:10.5px;font-weight:600}
.stour-stage{position:absolute;left:0;right:0;top:46px;bottom:0;overflow:hidden}
.stour-scene{position:absolute;inset:0;visibility:hidden;opacity:0}
.stour-scene.is-active{visibility:visible;opacity:1}
.stour-page{position:absolute;inset:0;display:flex;flex-direction:column;padding:18px 24px 16px}
.stour-cursor{position:absolute;left:0;top:0;z-index:20;width:22px;height:22px;opacity:0;visibility:hidden;pointer-events:none;filter:drop-shadow(0 3px 4px rgba(17,26,55,.3))}
.stour-cursor svg{display:block;width:22px;height:22px}
.stour-ripple{position:absolute;left:-9px;top:-9px;width:26px;height:26px;border-radius:50%;border:2px solid var(--green);opacity:0;pointer-events:none}

/* ---- shared pieces ---- */
.stour-eyebrow{display:block;color:var(--green-deep);font-size:10.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase}
.stour-eyebrow--icon{display:flex;align-items:center;gap:6px}
.stour-eyebrow--icon .stour-ico{width:12px;height:12px;color:var(--gold)}
.stour-title{margin-top:5px;font:600 26px/1.15 var(--font-sans);letter-spacing:-.02em;color:var(--ink)}
.stour-sub{margin-top:5px;color:var(--ink-soft);font-size:13px;line-height:1.45}
.stour-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:30px;padding:0 14px;border-radius:9px;font-size:12.5px;font-weight:600;line-height:1;white-space:nowrap;transition:translate .15s var(--ease),scale .15s var(--ease),box-shadow .2s,background .25s,color .25s,opacity .25s}
.stour-btn--light{background:#fff;color:var(--ink)}
.stour-btn--green{background:var(--green-deep);color:#fff}
.stour-btn--grad{background:linear-gradient(120deg,#0B5F58,#0EA99B);color:#fff}
.stour-btn--outline{border:1px solid var(--line);background:var(--paper-raised);color:var(--ink)}
.stour-btn--locked{border:1px solid var(--line);background:var(--paper-dim);color:#e07a6f}
.stour-btn.is-disabled{background:var(--line);color:var(--ink-faint);box-shadow:none}
.stour-btn.is-hover{translate:0 -1px;box-shadow:0 8px 16px -8px rgba(11,95,88,.55)}
.stour-btn.is-press{scale:.97;box-shadow:none}
.stour-meter{height:6px;border-radius:99px;background:var(--paper-dim);overflow:hidden}
.stour-meter i{display:block;height:100%;border-radius:inherit;background:var(--green-deep)}
.stour-meter.amber i{background:linear-gradient(90deg,#E2941C,#F2B84E)}
.stour-meter.blue i{background:linear-gradient(90deg,#3558D6,#5C86F5)}
.stour-meter.green i{background:linear-gradient(90deg,#0B8F86,#26B8A8)}
.stour-meter.light{background:rgba(255,255,255,.28)}
.stour-meter.light i{background:#fff}
.stour-ico-tile{display:grid;place-items:center;width:32px;height:32px;flex:0 0 auto;border-radius:10px;background:var(--green-pale);color:var(--green-deep)}
.stour-ico-tile .stour-ico{width:16px;height:16px}
.stour-ico-tile.amber{background:var(--gold-pale);color:var(--gold)}
.stour-ico-tile.blue{background:var(--violet-pale);color:var(--violet-deep)}
.stour-ico-tile.orange{background:#FFE9D6;color:#D9680F}
.stour-card{border:1px solid var(--line);border-radius:14px;background:var(--paper-raised);box-shadow:var(--shadow-xs)}

/* ---- scene 1 · Home ---- */
.stour-home-top{display:grid;grid-template-columns:minmax(0,1.18fr) minmax(0,1fr);gap:12px;margin-top:12px}
.stour-hero{position:relative;overflow:hidden;min-height:168px;padding:18px 20px;border-radius:16px;color:#fff;background:linear-gradient(115deg,#0B7F7A 0%,#1495A8 44%,#3866D9 100%)}
.stour-hero::before{content:"";position:absolute;right:-50px;top:-60px;width:190px;height:190px;border-radius:50%;background:rgba(255,255,255,.1)}
.stour-hero::after{content:"";position:absolute;left:-40px;bottom:-70px;width:150px;height:150px;border-radius:50%;background:rgba(255,255,255,.07)}
.stour-hero-copy{position:relative;z-index:1;display:flex;flex-direction:column;align-items:flex-start;max-width:56%}
.stour-tag{display:inline-block;padding:3px 10px;border-radius:99px;background:rgba(255,255,255,.22);font-size:10.5px;font-weight:600;letter-spacing:.06em}
.stour-hero h3{margin-top:9px;font:600 17px/1.2 var(--font-sans);letter-spacing:-.02em}
.stour-hero p{margin-top:6px;color:rgba(255,255,255,.88);font-size:12px;line-height:1.4}
.stour-hero .stour-btn{margin-top:11px}
.stour-hero-meter{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:8px;width:100%;margin-top:11px;font-size:10.5px;font-weight:500;color:rgba(255,255,255,.9)}
.stour-cardart{position:absolute;z-index:1;right:22px;top:26px;width:176px;height:110px;padding:13px 14px;border-radius:13px;border:1px solid rgba(255,255,255,.4);background:linear-gradient(135deg,rgba(255,255,255,.3),rgba(255,255,255,.05)),linear-gradient(135deg,#0a6f9a,#3157d8);box-shadow:0 18px 28px -12px rgba(8,28,90,.55);transform:rotate(-6deg);display:flex;flex-direction:column;justify-content:space-between}
.stour-cardart small{font-size:9.5px;font-weight:600;letter-spacing:.16em;opacity:.9}
.stour-cardart b{font-size:11px;font-weight:500;letter-spacing:.1em;white-space:nowrap;font-variant-numeric:tabular-nums}
.stour-cardart i{display:block;width:24px;height:17px;border-radius:4px;background:linear-gradient(135deg,#F7D98B,#E2A93B)}
.stour-cardart span{font-size:9.5px;font-weight:500;letter-spacing:.07em;opacity:.85}
.stour-mission{display:flex;flex-direction:column;padding:14px 16px 13px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(160deg,#fff 30%,#EAF8F4);box-shadow:var(--shadow-xs)}
.stour-mission h3{margin-top:7px;font:600 13px/1.35 var(--font-sans);letter-spacing:-.02em}
.stour-mission-opts{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin-top:10px}
.stour-chipopt{display:flex;align-items:center;gap:7px;min-height:38px;padding:6px 9px;border:1px solid var(--line);border-radius:10px;background:var(--paper-raised);color:var(--ink);font-size:11.5px;font-weight:500;line-height:1.25;transition:border-color .2s,background .2s,translate .15s,box-shadow .2s}
.stour-chipopt .stour-ico{width:15px;height:15px;color:var(--green-deep)}
.stour-chipopt.is-hover{border-color:var(--green);translate:0 -1px;box-shadow:0 8px 14px -10px rgba(11,95,88,.6)}
.stour-chipopt.is-picked{border-color:var(--green-deep);background:var(--green-pale)}
.stour-chipopt.is-picked.is-correct{border-color:var(--green-deep);background:var(--green-pale);box-shadow:0 0 0 2px rgba(14,169,155,.25)}
.stour-mission-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:10px;color:var(--ink-soft);font-size:11.5px;font-weight:500}
.stour-mission-foot [data-mission-note].is-win{color:var(--green-deep);font-weight:600}
.stour-stats{display:grid;grid-template-columns:1.45fr 1fr 1fr 1fr;gap:10px;margin-top:10px;align-items:stretch}
.stour-stat{display:flex;align-items:center;gap:10px;min-width:0;padding:10px 12px;border:1px solid var(--line);border-radius:14px;background:var(--paper-raised);box-shadow:var(--shadow-xs)}
.stour-stat-copy{display:flex;flex-direction:column;min-width:0}
.stour-stat small{display:block;color:var(--ink-soft);font-size:10.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase}
.stour-stat b{display:block;margin-top:2px;font-size:15px;font-weight:600;letter-spacing:-.02em;font-variant-numeric:tabular-nums;white-space:nowrap}
.stour-stat em{display:block;margin-top:2px;color:var(--ink-faint);font-size:10.5px;font-style:normal;font-weight:500}
.stour-stat--next{display:block}
.stour-stat-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.stour-stat-head span{font-size:11.5px;font-weight:600}
.stour-stat-head a{color:var(--green-deep);font-size:10.5px;font-weight:600}
.stour-next{display:flex;align-items:center;gap:9px;margin-top:7px;padding:6px 8px;border:1px solid var(--line);border-radius:10px}
.stour-next b{margin:0;font-size:11.5px;line-height:1.25}
.stour-next small{margin-top:1px;font-size:10.5px;letter-spacing:0;text-transform:none;font-weight:500}
.stour-next .stour-btn{height:24px;margin-left:auto;padding:0 10px;font-size:11px}
.stour-next .stour-ico-tile{width:26px;height:26px;border-radius:50%}
.stour-stat--week .stour-meter{margin-top:6px}
.stour-subjects-head{margin-top:12px}
.stour-subjects-head h4{margin-top:3px;font:600 15px var(--font-sans);letter-spacing:-.02em}
.stour-subjects{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:9px}
.stour-subject{display:flex;flex-direction:column;gap:8px;padding:10px 12px;border:1px solid var(--line);border-radius:14px;background:var(--paper-raised)}
.stour-subject--credit{background:linear-gradient(135deg,#FFF9EF,#fff 70%)}
.stour-subject--tax{background:linear-gradient(135deg,#F3F6FF,#fff 70%)}
.stour-subject--loan{background:linear-gradient(135deg,#F0FAF7,#fff 70%)}
.stour-subject-top{display:flex;align-items:center;gap:10px}
.stour-subject-top b{display:block;font-size:13px;font-weight:600;letter-spacing:-.01em}
.stour-subject-top small{display:block;margin-top:1px;color:var(--ink-soft);font-size:11px}
.stour-subject-foot{display:flex;align-items:center;gap:10px}
.stour-subject-foot .stour-link{flex:0 0 auto;font-size:11px;font-weight:600;color:var(--ink)}
.stour-subject-foot .stour-fillgroup{flex:1;display:flex;flex-direction:column;gap:3px;min-width:0}
.stour-subject-foot .stour-fillgroup b{font-size:10.5px;font-weight:500;color:var(--ink-soft);text-align:right}

/* ---- scene 2 · Learn ---- */
.stour-learn-top{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px}
.stour-back{color:var(--ink-soft);font-size:11.5px;font-weight:500}
.stour-subject-tabs{display:flex;gap:2px;padding:3px;border-radius:10px;background:var(--paper-dim)}
.stour-subject-tabs span{padding:5px 14px;border-radius:8px;color:var(--ink-soft);font-size:11.5px;font-weight:500}
.stour-subject-tabs span.is-on{background:var(--paper-raised);color:var(--ink);font-weight:600;box-shadow:var(--shadow-xs)}
.stour-module-hero{position:relative;overflow:hidden;margin-top:12px;padding:15px 20px 14px;border:1px solid var(--line);border-radius:18px;text-align:center;background:linear-gradient(160deg,#FFF8EB,#fff 62%)}
.stour-module-hero::before{content:"";position:absolute;left:-34px;top:-40px;width:120px;height:120px;border-radius:50%;background:rgba(242,184,78,.2)}
.stour-pill{display:inline-block;padding:3px 10px;border-radius:99px;background:var(--gold-pale);color:#B8730A;font-size:10.5px;font-weight:600;letter-spacing:.07em}
.stour-module-hero h2{position:relative;margin-top:7px;font:600 30px/1 var(--font-sans);letter-spacing:-.02em}
.stour-module-hero p{position:relative;max-width:420px;margin:7px auto 0;color:var(--ink-soft);font-size:12.5px;line-height:1.45}
.stour-chips{position:relative;display:flex;justify-content:center;flex-wrap:wrap;gap:6px;margin-top:10px}
.stour-chips span{padding:4px 10px;border:1px solid var(--line);border-radius:99px;background:var(--paper-raised);color:var(--ink-soft);font-size:10.5px;font-weight:500}
.stour-learn-grid{display:grid;grid-template-columns:minmax(0,1fr) 214px;gap:12px;margin-top:12px;min-height:0}
.stour-lessons{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;align-content:start}
.stour-lcard{display:flex;flex-direction:column;padding:11px 12px 12px;border:1px solid var(--line);border-radius:13px;background:var(--paper-raised);box-shadow:var(--shadow-xs);transition:translate .25s var(--ease),box-shadow .25s,border-color .25s}
.stour-lcard.is-active{border:2px solid var(--green-deep);padding:10px 11px 11px;box-shadow:0 14px 26px -16px rgba(11,95,88,.5)}
.stour-lcard.is-hover{translate:0 -2px;box-shadow:0 18px 30px -16px rgba(11,95,88,.55)}
.stour-lcard-top{display:flex;align-items:center;gap:8px}
.stour-num{padding:2px 7px;border-radius:6px;background:var(--paper-dim);color:var(--ink-soft);font-size:10.5px;font-weight:600}
.stour-meta{color:var(--ink-faint);font-size:10.5px;font-weight:500}
.stour-badge{margin-left:auto;padding:2px 8px;border-radius:99px;font-size:10px;font-weight:600;letter-spacing:.06em}
.stour-badge--std{background:var(--green-pale);color:var(--green-deep)}
.stour-badge--game{background:var(--violet-pale);color:var(--violet-deep)}
.stour-lcard h4{margin-top:9px;font-size:13px;font-weight:600;letter-spacing:-.015em;line-height:1.25}
.stour-lcard p{margin-top:3px;color:var(--ink-soft);font-size:11px;line-height:1.4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.stour-lprog{display:flex;align-items:center;gap:8px;margin:10px 0 9px}
.stour-lprog .stour-meter{flex:1;height:5px}
.stour-lprog b{min-width:30px;text-align:right;color:var(--ink-soft);font-size:10.5px;font-weight:500;font-variant-numeric:tabular-nums}
.stour-lcard .stour-btn{height:28px;width:100%}
.stour-side{display:flex;flex-direction:column;gap:10px}
.stour-assign{padding:12px 13px}
.stour-assign h4{margin-top:5px;font-size:13px;font-weight:600;letter-spacing:-.01em}
.stour-assign small{display:block;margin-top:2px;color:var(--ink-soft);font-size:11px}
.stour-assign-body{display:flex;align-items:center;gap:11px;margin-top:10px;padding-top:10px;border-top:1px solid var(--line)}
.stour-ring{position:relative;width:46px;height:46px;flex:0 0 auto}
.stour-ring svg{width:46px;height:46px;transform:rotate(-90deg)}
.stour-ring circle{fill:none;stroke-width:5}
.stour-ring .bg{stroke:var(--paper-dim)}
.stour-ring .fg{stroke:var(--green-deep);stroke-linecap:round}
.stour-ring b{position:absolute;inset:0;display:grid;place-items:center;font-size:11.5px;font-weight:600}
.stour-assign-body strong{display:block;font-size:12px;font-weight:600}
.stour-assign-body span{display:block;margin-top:1px;color:var(--ink-faint);font-size:10.5px;font-weight:500}
.stour-help{padding:12px 13px;background:linear-gradient(150deg,#fff,#E9F8F4)}
.stour-help h4{margin-top:5px;font-size:13px;font-weight:600;letter-spacing:-.01em}
.stour-help p{margin-top:3px;color:var(--ink-soft);font-size:11px;line-height:1.4}
.stour-help .stour-btn{margin-top:9px;height:26px;font-size:11.5px}

/* ---- scenes 3 + 4 · lesson stages ---- */
.stour-lessonbar{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px}
.stour-lessonbar .stour-back{color:var(--green-deep)}
.stour-saved{justify-self:end;color:var(--ink-soft);font-size:11px;font-weight:500}
.stour-stepper{display:flex;gap:6px}
.stour-step{display:flex;align-items:center;gap:6px;padding:5px 11px 5px 6px;border:1px solid var(--line);border-radius:99px;background:var(--paper-raised);color:var(--ink-soft);font-size:11px;font-weight:500;white-space:nowrap;transition:background .3s,border-color .3s,color .3s}
.stour-step b{display:grid;place-items:center;width:17px;height:17px;border-radius:50%;border:1.5px solid var(--line);font-size:10px;font-weight:600;transition:background .3s,border-color .3s,color .3s}
.stour-step.is-done{border-color:var(--green);color:var(--green-deep)}
.stour-step.is-done b{border-color:var(--green-deep);background:var(--green-deep);color:#fff}
.stour-step.is-current{border-color:var(--green-deep);background:var(--green-pale);color:var(--green-deep);font-weight:600}
.stour-step.is-current b{border-color:var(--green-deep);color:var(--green-deep)}
.stour-stagehead{margin-top:11px}
.stour-stagehead h2{margin-top:4px;font:600 22px/1.15 var(--font-sans);letter-spacing:-.02em}
.stour-stagehead p{margin-top:3px;color:var(--ink-soft);font-size:12.5px}
.stour-stagenav{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:11px;border-top:1px solid var(--line)}
.stour-navcopy{color:var(--ink-faint);font-size:11px;font-weight:500;text-align:center}
.stour-stagenav .stour-btn{height:32px;min-width:96px}

/* Interact · CreditLab */
.stour-sim{display:flex;flex-direction:column;margin:9px 0 12px;padding:12px 16px 11px;border:1px solid var(--line);border-radius:14px;background:var(--paper-raised);box-shadow:var(--shadow-xs)}
.stour-sim-top{display:flex;align-items:center;justify-content:space-between;color:var(--ink-soft);font-size:10.5px;font-weight:600;letter-spacing:.07em}
.stour-sim-top em{color:var(--gold);font-style:normal}
.stour-sim-body{display:grid;grid-template-columns:132px minmax(0,1fr);gap:24px;align-items:center;margin-top:6px}
.stour-gauge{width:132px}
.stour-gauge svg{display:block;width:132px;height:77px;overflow:visible}
.stour-gauge-read{margin-top:3px;text-align:center;line-height:1}
.stour-gauge-read b{display:block;font:600 24px/1 var(--font-sans);letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.stour-gauge-read span{display:block;margin-top:3px;color:var(--ink-soft);font-size:10px;font-weight:600;letter-spacing:.08em}
.stour-simstats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px 14px}
.stour-simstats small{display:block;color:var(--ink-faint);font-size:10px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;white-space:nowrap}
.stour-simstats b{display:block;margin-top:2px;color:var(--green-deep);font-size:13px;font-weight:600;font-variant-numeric:tabular-nums}
.stour-feedback{display:flex;align-items:center;gap:9px;margin-top:11px;padding:8px 11px;border:1px solid #F3DDB6;border-radius:10px;background:#FFF8EA;color:#8A5A0B;font-size:11.5px;font-weight:500;line-height:1.35}
.stour-feedback .stour-ico{width:15px;height:15px}
.stour-feedback.is-bad{border-color:#F6C9C3;background:#FEF0EE;color:#B23B2C}
.stour-feedback.is-good{border-color:#BFE6DE;background:#EAF8F4;color:var(--green-deep)}
.stour-decisions-label{margin-top:10px;color:var(--ink-faint);font-size:10px;font-weight:600;letter-spacing:.07em}
.stour-decisions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;margin-top:6px}
.stour-decision{display:flex;align-items:center;justify-content:center;height:28px;padding:0 8px;border:1px solid var(--line);border-radius:9px;background:var(--paper-raised);font-size:11.5px;font-weight:500;text-align:center;line-height:1.1;transition:border-color .2s,background .2s,translate .15s,scale .15s,box-shadow .2s}
.stour-decision.is-hover{border-color:var(--green);translate:0 -1px;box-shadow:0 8px 14px -10px rgba(11,95,88,.6)}
.stour-decision.is-press{scale:.97}
.stour-decision.is-used{border-color:var(--green-deep);background:var(--green-pale);color:var(--green-deep)}
.stour-sim-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:9px;color:var(--ink-faint);font-size:11px;font-weight:500}
.stour-sim-foot .stour-btn{height:28px}

/* Check · questions */
.stour-checkhead{display:flex;align-items:center;gap:10px;margin-top:8px;font-size:11.5px;color:var(--ink-soft)}
.stour-checkhead b{color:var(--ink);font-weight:600}
.stour-segs{display:flex;gap:5px}
.stour-segs i{width:46px;height:5px;border-radius:99px;background:var(--line);transition:background .35s}
.stour-segs i.is-on{background:var(--green)}
.stour-checkscroll{position:relative;flex:1;min-height:0;margin-top:10px;overflow:hidden}
.stour-checkinner{position:relative}
.stour-q{padding-top:9px;border-top:1px solid var(--line)}
.stour-q:first-child{border-top:0;padding-top:0}
.stour-q-title{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:-.005em}
.stour-q-title span{display:grid;place-items:center;width:19px;height:19px;border-radius:50%;background:var(--violet-pale);color:var(--violet-deep);font-size:10.5px;font-weight:600}
.stour-opts{display:grid;gap:5px;margin-top:8px}
.stour-opt{display:flex;align-items:center;gap:9px;height:31px;padding:0 11px;border:1px solid var(--line);border-radius:9px;background:var(--paper-raised);font-size:12px;font-weight:500;transition:border-color .2s,background .2s,translate .15s}
.stour-opt i{display:grid;place-items:center;width:15px;height:15px;flex:0 0 auto;border:1.5px solid #C9C6DC;border-radius:50%;color:transparent;font-size:9.5px;font-style:normal;font-weight:600;transition:background .2s,border-color .2s,color .2s}
.stour-opt em{margin-left:auto;color:var(--green-deep);font-size:10px;font-style:normal;font-weight:600;letter-spacing:.06em;opacity:0;transition:opacity .25s}
.stour-opt.is-hover{border-color:var(--green);translate:0 -1px}
.stour-opt.is-correct{border-color:var(--green-deep);background:var(--green-pale);color:var(--green-deep)}
.stour-opt.is-correct i{border-color:var(--green-deep);background:var(--green-deep);color:#fff}
.stour-opt.is-correct em{opacity:1}
.stour-qfb{margin-top:6px;padding:6px 10px;border-radius:8px;background:var(--green-pale);color:var(--green-deep);font-size:11px;font-weight:500}
.stour-qfb b{font-weight:600}

/* ---- scene 5 · Ask Futura ---- */
.stour-recent{display:flex;align-items:center;gap:10px;margin-top:10px;padding:8px 12px}
.stour-recent>b{font-size:11.5px;font-weight:600}
.stour-recent-list{display:flex;gap:7px;min-width:0}
.stour-recent-list span{padding:4px 10px;border:1px solid var(--line);border-radius:8px;background:var(--paper-dim);font-size:11px;font-weight:500;white-space:nowrap}
.stour-recent-list small{display:block;margin-top:1px;color:var(--ink-faint);font-size:10px;font-weight:500}
.stour-recent>a{margin-left:auto;color:var(--green-deep);font-size:11px;font-weight:600}
.stour-futura-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:12px;flex:1;min-height:0;margin-top:10px}
.stour-chat{display:flex;flex-direction:column;min-height:0;overflow:hidden}
.stour-chat-head{display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--line)}
.stour-fav{display:grid;place-items:center;width:28px;height:28px;flex:0 0 auto;border-radius:50%;background:var(--green-deep);color:#fff}
.stour-fav .stour-ico{width:14px;height:14px}
.stour-chat-head b{display:block;font-size:13px;font-weight:600}
.stour-chat-head small{display:block;margin-top:1px;color:var(--ink-soft);font-size:10.5px;font-weight:500}
.stour-chat-head small::before{content:"";display:inline-block;width:6px;height:6px;margin-right:5px;border-radius:50%;background:#2FBF71;vertical-align:1px}
.stour-chat-head .stour-btn{margin-left:auto;height:26px;font-size:11px}
.stour-msgs{display:flex;flex:1;flex-direction:column;gap:8px;min-height:0;padding:11px 14px;overflow:hidden}
.stour-msg{max-width:86%;padding:8px 12px;border-radius:12px;font-size:12px;line-height:1.5}
.stour-msg--bot{align-self:flex-start;border-top-left-radius:4px;background:#ECE9F8;color:var(--ink)}
.stour-msg--user{align-self:flex-end;border-top-right-radius:4px;background:var(--green-deep);color:#fff;font-weight:500}
.stour-typing{align-self:flex-start;display:flex;gap:4px;padding:11px 13px;border-radius:12px;border-top-left-radius:4px;background:#ECE9F8}
.stour-typing i{width:5px;height:5px;border-radius:50%;background:#8A87AE;animation:stourDot 1s infinite ease-in-out}
.stour-typing i:nth-child(2){animation-delay:.15s}
.stour-typing i:nth-child(3){animation-delay:.3s}
@keyframes stourDot{0%,80%,100%{opacity:.35;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}}
.stour-related-wrap{overflow:hidden}
.stour-related{display:inline-flex;align-items:center;gap:6px;margin-top:8px;padding:4px 9px;border:1px solid #CFC9EE;border-radius:99px;background:#fff;color:var(--violet-deep);font-size:10.5px;font-weight:600}
.stour-related .stour-ico{width:12px;height:12px}
.stour-chat-foot{padding:9px 14px 10px;border-top:1px solid var(--line)}
.stour-chat-foot small{display:block;color:var(--ink-faint);font-size:10.5px;font-weight:500}
.stour-inputrow{display:flex;gap:8px;margin-top:6px}
.stour-input{display:flex;align-items:center;flex:1;min-width:0;height:32px;padding:0 12px;border:1.5px solid var(--line);border-radius:9px;background:var(--paper-raised);font-size:12px;font-weight:500;overflow:hidden;white-space:nowrap;transition:border-color .2s}
.stour-input.is-focus{border-color:var(--green)}
.stour-input .is-placeholder{color:var(--ink-faint);font-weight:500}
.stour-input span{overflow:hidden;text-overflow:ellipsis}
.stour-send{display:grid;place-items:center;height:32px;padding:0 16px;border-radius:9px;background:var(--ink);color:#fff;font-size:12px;font-weight:600;transition:translate .15s,scale .15s,opacity .2s}
.stour-send.is-hover{translate:0 -1px}
.stour-send.is-press{scale:.96}
.stour-disclaim{margin-top:6px;color:var(--ink-faint);font-size:10px;font-weight:500}
.stour-popular{display:flex;flex-direction:column;min-height:0;padding:12px 13px}
.stour-popular>b{display:flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600}
.stour-popular>b .stour-ico{width:13px;height:13px;color:#E2941C}
.stour-poptabs{display:flex;gap:2px;margin-top:9px;padding:3px;border-radius:9px;background:var(--paper-dim)}
.stour-poptabs span{flex:1;padding:4px 0;border-radius:7px;color:var(--ink-soft);font-size:10.5px;font-weight:500;text-align:center}
.stour-poptabs span.is-on{background:var(--paper-raised);color:var(--ink);font-weight:600;box-shadow:var(--shadow-xs)}
.stour-poplist{display:flex;flex-direction:column;gap:6px;margin-top:9px}
.stour-pop{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:7px 10px;border:1px solid #CBEBE4;border-radius:9px;background:#E7F7F3;color:var(--green-deep);font-size:11px;font-weight:500;line-height:1.3;transition:background .2s,border-color .2s,translate .15s}
.stour-pop::after{content:"›";font-size:14px;line-height:1}
.stour-pop.is-hover{border-color:var(--green);translate:2px 0}
.stour-tip{margin-top:auto;padding:9px 11px;border-radius:9px;background:var(--paper-dim);color:var(--ink-soft);font-size:10.5px;font-weight:500;line-height:1.45}
.stour-tip b{color:var(--ink);font-weight:600}
.stour-pop.is-picked{background:var(--green-deep);border-color:var(--green-deep);color:#fff}

/* ---- aside: scene guide ---- */
.stour-copy{padding-left:26px}
.stour-copy h3{margin-top:16px}
.stour-scenes{display:grid;gap:4px;margin:18px 0 0;padding:0;list-style:none}
.stour-point{position:relative;display:grid;grid-template-columns:26px minmax(0,1fr);gap:12px;width:100%;padding:10px 12px 12px;border:0;border-radius:12px;background:transparent;color:var(--text-muted);font:inherit;text-align:left;cursor:pointer;transition:background .25s,color .25s}
.stour-point:hover{background:var(--surface-sunken)}
.stour-point:focus-visible{outline:2px solid var(--green-deep);outline-offset:1px}
.stour-point>b{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--accent-quiet,var(--green-pale));color:var(--accent);font-size:.72rem;font-weight:600;transition:background .25s,color .25s}
.stour-point strong{display:block;color:var(--text);font-size:.88rem;font-weight:600;line-height:1.35}
.stour-point small{display:block;margin-top:2px;font-size:.78rem;line-height:1.45}
.stour-point-bar{position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;background:transparent;overflow:hidden}
.stour-point-bar i{display:block;width:100%;height:100%;border-radius:inherit;background:var(--accent);transform:scaleX(0);transform-origin:0 50%}
.stour-point.is-current{background:var(--surface-raised);box-shadow:var(--shadow-sm)}
.stour-point.is-current>b{background:var(--accent);color:#fff}
.stour-point.is-current .stour-point-bar{background:var(--border)}
.stour-toggle{align-self:flex-start;margin:12px 0 0 12px;padding:7px 14px;border:1px solid var(--border);border-radius:99px;background:var(--surface-raised);color:var(--text-muted);font:600 .74rem var(--font-sans);cursor:pointer;transition:border-color .2s,color .2s}
.stour-toggle:hover{border-color:var(--text-subtle);color:var(--text)}
.stour-toggle:focus-visible{outline:2px solid var(--green-deep);outline-offset:2px}
.stour-toggle[hidden]{display:none}

/* ---- narrow layout (440x600 canvas) ---- */
.stour[data-layout="compact"] .stour-topbar{grid-template-columns:auto 1fr auto;padding:0 12px;gap:10px}
.stour[data-layout="compact"] .stour-brand span{display:none}
.stour[data-layout="compact"] .stour-tabs{gap:13px;justify-content:center}
.stour[data-layout="compact"] .stour-tabs span:nth-child(n+5){display:none}
.stour[data-layout="compact"] .stour-page{padding:14px 14px 12px}
.stour[data-layout="compact"] .stour-title{font-size:21px}
.stour[data-layout="compact"] .stour-sub{font-size:12px}
.stour[data-layout="compact"] .stour-home-top{grid-template-columns:1fr;margin-top:10px}
.stour[data-layout="compact"] .stour-mission{display:none}
.stour[data-layout="compact"] .stour-hero{min-height:0;padding:15px 16px}
.stour[data-layout="compact"] .stour-hero-copy{max-width:100%}
.stour[data-layout="compact"] .stour-hero h3{font-size:16px}
.stour[data-layout="compact"] .stour-cardart,.stour[data-layout="compact"] .stour-hero p{display:none}
.stour[data-layout="compact"] .stour-stats{grid-template-columns:1fr 1fr;margin-top:8px}
.stour[data-layout="compact"] .stour-stat--next{display:none}
.stour[data-layout="compact"] .stour-stat--week{display:none}
.stour[data-layout="compact"] .stour-subjects-head{margin-top:12px}
.stour[data-layout="compact"] .stour-subjects{grid-template-columns:1fr;gap:7px}
.stour[data-layout="compact"] .stour-subject{flex-direction:row;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px}
.stour[data-layout="compact"] .stour-subject-top small,.stour[data-layout="compact"] .stour-subject-foot .stour-link{display:none}
.stour[data-layout="compact"] .stour-subject-foot{width:42%}
.stour[data-layout="compact"] .stour-learn-top{grid-template-columns:auto 1fr;gap:10px}
.stour[data-layout="compact"] .stour-back{font-size:11px}
.stour[data-layout="compact"] .stour-subject-tabs{justify-self:end}
.stour[data-layout="compact"] .stour-subject-tabs span{padding:5px 10px}
.stour[data-layout="compact"] .stour-module-hero{margin-top:10px;padding:12px 14px}
.stour[data-layout="compact"] .stour-module-hero h2{font-size:25px}
.stour[data-layout="compact"] .stour-module-hero p{display:none}
.stour[data-layout="compact"] .stour-chips{display:none}
.stour[data-layout="compact"] .stour-learn-grid{grid-template-columns:1fr;margin-top:10px}
.stour[data-layout="compact"] .stour-lessons{grid-template-columns:1fr;gap:8px}
.stour[data-layout="compact"] .stour-lcard:nth-child(4){display:none}
.stour[data-layout="compact"] .stour-lcard p{display:none}
.stour[data-layout="compact"] .stour-lcard{padding:9px 11px 10px}
.stour[data-layout="compact"] .stour-lcard.is-active{padding:8px 10px 9px}
.stour[data-layout="compact"] .stour-lcard h4{margin-top:7px}
.stour[data-layout="compact"] .stour-lprog{margin:8px 0 7px}
.stour[data-layout="compact"] .stour-lcard .stour-btn{height:26px}
.stour[data-layout="compact"] .stour-side{display:none}
.stour[data-layout="compact"] .stour-lessonbar{grid-template-columns:auto 1fr;gap:8px}
.stour[data-layout="compact"] .stour-saved{display:none}
.stour[data-layout="compact"] .stour-stepper{gap:3px;justify-self:end}
.stour[data-layout="compact"] .stour-step{padding:3px 7px 3px 4px;gap:4px;font-size:0}
.stour[data-layout="compact"] .stour-step.is-current{font-size:10.5px}
.stour[data-layout="compact"] .stour-stagehead{margin-top:11px}
.stour[data-layout="compact"] .stour-stagehead h2{font-size:19px}
.stour[data-layout="compact"] .stour-sim{padding:11px 12px}
.stour[data-layout="compact"] .stour-sim-body{grid-template-columns:104px minmax(0,1fr);gap:12px}
.stour[data-layout="compact"] .stour-gauge{width:104px}
.stour[data-layout="compact"] .stour-gauge svg{width:104px;height:61px}
.stour[data-layout="compact"] .stour-gauge-read b{font-size:20px}
.stour[data-layout="compact"] .stour-simstats{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px 10px}
.stour[data-layout="compact"] .stour-decisions{grid-template-columns:1fr 1fr}
.stour[data-layout="compact"] .stour-sim-foot span{display:none}
.stour[data-layout="compact"] .stour-sim-foot{justify-content:space-between}
.stour[data-layout="compact"] .stour-navcopy{display:none}
.stour[data-layout="compact"] .stour-segs i{width:30px}
.stour[data-layout="compact"] .stour-opts{grid-template-columns:1fr 1fr;gap:5px}
.stour[data-layout="compact"] .stour-opt{height:29px;padding:0 8px;gap:6px;font-size:11px}
.stour[data-layout="compact"] .stour-opt em{display:none}
.stour[data-layout="compact"] .stour-recent{display:none}
.stour[data-layout="compact"] .stour-futura-grid{grid-template-columns:1fr}
.stour[data-layout="compact"] .stour-popular{display:none}
.stour[data-layout="compact"] .stour-msg{max-width:92%}

@media(prefers-reduced-motion:reduce){.stour-typing i{animation:none;opacity:.7}}