/* ════════════════════════════════════════
   DSA BAZAAR — STYLE
   ════════════════════════════════════════ */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg-deep:#0c0a1a;--bg-mid:#1a1535;--gold:#f0c14b;--gold-bright:#ffd966;
  --gold-glow:rgba(240,193,75,.35);--ink:#e8e4f0;--ink-dim:#9a93b8;--ink-mute:#6b6588;
  --panel:rgba(20,16,45,.88);--panel-border:rgba(240,193,75,.15);
  --cyan:#36d6e7;--fire:#ff6b35;--leaf:#52c41a;--moon:#4a9eff;--purple:#b37feb;--rose:#f06292;
  --code-bg:#0a0815;--code-border:rgba(54,214,231,.2);
}
html{scroll-behavior:smooth;font-size:16px}
body{background:var(--bg-deep);color:var(--ink);font-family:'Noto Sans Bengali','Segoe UI',sans-serif;overflow-x:hidden;min-height:100vh}
#particles{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:0}

/* ── SCREENS ── */
.screen{display:none;min-height:100vh;position:relative;z-index:1}
.screen.active{display:block}
#title-screen.active,#prologue-screen.active,#complete-screen.active{display:flex;flex-direction:column;align-items:center;justify-content:center}
#title-screen,#prologue-screen{min-height:100vh;text-align:center;padding:2rem;background:radial-gradient(ellipse at center,#1a1040 0%,#0c0a1a 70%)}

/* ── TITLE ── */
.title-arabic{font-family:'Amiri',serif;font-size:clamp(1.3rem,3.5vw,2rem);color:var(--gold);opacity:.7;margin-bottom:.5rem;letter-spacing:.05em}
.title-main{font-family:'Cinzel',serif;font-size:clamp(1.8rem,5.5vw,3.5rem);font-weight:900;background:linear-gradient(135deg,var(--gold-bright),var(--cyan),var(--gold));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:.03em;line-height:1.15;margin-bottom:.5rem;animation:titlePulse 4s ease-in-out infinite}
.title-sub{font-size:clamp(.95rem,2.2vw,1.3rem);color:var(--ink-dim);font-weight:600;margin-bottom:1rem}
.title-desc{max-width:520px;font-size:.9rem;color:var(--ink-mute);line-height:1.7;margin-bottom:2rem;text-align:center}
.start-btn{font-family:'Cinzel',serif;font-size:clamp(1rem,1.8vw,1.2rem);font-weight:700;padding:1rem 2.8rem;background:linear-gradient(135deg,var(--gold),var(--fire));color:#0c0a1a;border:none;border-radius:50px;cursor:pointer;letter-spacing:.06em;text-transform:uppercase;box-shadow:0 0 40px var(--gold-glow),0 4px 20px rgba(0,0,0,.5);transition:all .4s ease}
.start-btn:hover{transform:translateY(-3px) scale(1.05);box-shadow:0 0 60px var(--gold-glow),0 6px 30px rgba(0,0,0,.6)}
@keyframes titlePulse{0%,100%{filter:drop-shadow(0 0 20px rgba(240,193,75,.25))}50%{filter:drop-shadow(0 0 40px rgba(240,193,75,.4))}}

/* ── PROLOGUE ── */
.prologue-body{max-width:620px;text-align:left}
.prologue-body p{font-size:clamp(.95rem,1.5vw,1.1rem);line-height:2;color:var(--ink);margin-bottom:1rem}
.prologue-body p.en{color:var(--ink-mute);font-style:italic;font-size:.875rem;line-height:1.7;margin-top:-0.5rem;margin-bottom:1.4rem;padding-left:1rem;border-left:2px solid var(--panel-border)}
.prologue-title{font-family:'Cinzel',serif;font-size:clamp(1.1rem,2.3vw,1.5rem);font-weight:700;color:var(--gold-bright);margin-bottom:1.5rem;text-align:center}

/* ── HUD ── */
#hud{position:sticky;top:0;z-index:100;background:rgba(12,10,26,.93);backdrop-filter:blur(12px);border-bottom:1px solid var(--panel-border);padding:.6rem 1rem;display:flex;align-items:center;justify-content:space-between;gap:.6rem;flex-wrap:wrap}
.hud-rank{font-family:'Cinzel',serif;font-size:clamp(.8rem,1.4vw,1rem);font-weight:700;color:var(--gold);display:flex;align-items:center;gap:.4rem}
.hud-level{font-size:.8rem;color:var(--ink-dim);background:rgba(240,193,75,.1);padding:.2rem .7rem;border-radius:20px;border:1px solid var(--panel-border)}
.hud-xp-wrap{flex:1;max-width:260px;min-width:100px}
.hud-xp-bar{height:8px;background:rgba(255,255,255,.08);border-radius:10px;overflow:hidden;border:1px solid var(--panel-border)}
.hud-xp-fill{height:100%;background:linear-gradient(90deg,var(--fire),var(--gold-bright),var(--cyan));border-radius:10px;transition:width .8s cubic-bezier(.4,0,.2,1);box-shadow:0 0 10px var(--gold-glow)}
.hud-xp-text{font-size:0.75rem;color:var(--ink-mute);text-align:center;margin-top:.2rem}
.hud-btn{font-size:0.8rem;color:var(--ink-mute);background:none;border:1px solid var(--panel-border);border-radius:12px;padding:.25rem .55rem;cursor:pointer;transition:all .3s;font-family:'Noto Sans Bengali',sans-serif;white-space:nowrap}
.hud-btn:hover{color:var(--gold);border-color:var(--gold)}

/* ── MAP ── */
#map-screen{padding:1rem .5rem 3rem}
.map-header{text-align:center;padding:1.5rem 1rem 1rem}
.map-header h2{font-family:'Cinzel',serif;font-size:clamp(1.3rem,2.8vw,1.9rem);font-weight:700;color:var(--gold-bright);margin-bottom:.3rem}
.map-header p{color:var(--ink-mute);font-size:.9rem}
.doors-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.2rem;max-width:960px;margin:0 auto;padding:1.5rem 1rem}
.door-card{position:relative;background:var(--panel);border:1px solid var(--panel-border);border-radius:16px;padding:1.4rem;cursor:pointer;transition:all .4s cubic-bezier(.4,0,.2,1);overflow:hidden;min-height:170px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}
.door-card:hover{transform:translateY(-4px);border-color:var(--gold);box-shadow:0 8px 30px rgba(0,0,0,.4),0 0 30px var(--gold-glow)}
.door-card:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
.door-card.locked{opacity:.4;cursor:not-allowed;filter:grayscale(.7)}
.door-card.locked:hover{transform:none;box-shadow:none}
.door-card.completed{border-color:var(--leaf)}
.door-card.completed::after{content:'✓';position:absolute;top:.8rem;right:.8rem;font-size:1rem;color:var(--leaf);font-weight:700}
.door-card.next-door{border-color:var(--gold);animation:nextPulse 2.5s ease-in-out infinite}
@keyframes nextPulse{0%,100%{box-shadow:0 0 15px var(--gold-glow)}50%{box-shadow:0 0 40px var(--gold-glow)}}
.door-num{font-family:'Cinzel',serif;font-size:0.75rem;color:var(--ink-mute);letter-spacing:.15em;margin-bottom:.4rem}
.door-icon{font-size:2.5rem;margin-bottom:.5rem}
.door-title{font-family:'Cinzel',serif;font-weight:700;font-size:1rem;color:var(--ink);margin-bottom:.2rem}
.door-subtitle{font-size:0.78rem;color:var(--ink-dim);margin-bottom:.4rem}
.door-tech{font-size:0.78rem;color:var(--gold);font-weight:600;background:rgba(240,193,75,.08);padding:.2rem .6rem;border-radius:8px}
.door-lock-hint{font-size:0.78rem;color:var(--ink-mute);margin-top:.3rem;font-style:italic}

/* ── STORY ── */
#story-screen{padding:0;min-height:100vh}
.story-back{position:sticky;top:0;z-index:50;padding:.5rem 1rem;background:rgba(12,10,26,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--panel-border)}
.back-btn{font-family:'Noto Sans Bengali',sans-serif;font-size:.85rem;color:var(--ink-dim);background:none;border:none;cursor:pointer;padding:.3rem .6rem;border-radius:8px;transition:color .3s}
.back-btn:hover{color:var(--gold)}
.story-container{max-width:820px;margin:0 auto;padding:2rem 1.2rem 4rem}
.story-progress{text-align:center;font-family:'Cinzel',serif;font-size:.8rem;color:var(--ink-mute);letter-spacing:.15em;text-transform:uppercase;margin-bottom:1rem;padding-bottom:.8rem;border-bottom:1px solid var(--panel-border)}
.story-door-banner{text-align:center;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1px solid var(--panel-border)}
.story-door-icon{font-size:3rem;margin-bottom:.3rem}
.story-door-name{font-family:'Cinzel',serif;font-size:clamp(1.3rem,2.5vw,1.6rem);font-weight:700;margin-bottom:.2rem}
.story-text{font-size:clamp(.92rem,1.4vw,1.05rem);line-height:1.9;color:var(--ink)}
.story-text p{margin-bottom:1rem}
.story-text .scene-setting{color:var(--ink-dim);font-style:italic;font-size:.88rem;border-left:2px solid var(--gold-glow);padding-left:1rem;margin:1.2rem 0}
.story-text .scene-setting.en{color:var(--ink-mute);font-size:0.875rem;border-left-color:rgba(240,193,75,.08)}
.story-text .dialogue{background:rgba(240,193,75,.05);border-radius:12px;padding:.9rem 1.1rem;margin:.7rem 0;border:1px solid rgba(240,193,75,.1)}
.story-text .dialogue::before{content:'➤';color:var(--gold);margin-right:.5rem;font-size:.8rem}
.story-text p.en,.story-text .dialogue.en{color:var(--ink-mute);font-style:italic;font-size:0.875rem;margin-top:-.4rem}
.story-text .dialogue.en{background:rgba(240,193,75,.02);border-color:rgba(240,193,75,.06)}
.story-text .dialogue.en::before{content:'↳';color:var(--ink-mute)}
.story-text .verse{text-align:center;font-family:'Amiri',serif;font-size:1.05rem;color:var(--gold-bright);margin:1.2rem 0;padding:1rem;background:rgba(240,193,75,.04);border-radius:16px;border:1px solid var(--panel-border)}
.story-text .secret-box{background:linear-gradient(135deg,rgba(240,193,75,.08),rgba(82,196,26,.05));border:1px solid var(--gold);border-radius:16px;padding:1.1rem;margin:1.2rem 0;text-align:center}
.story-text .secret-box .label{font-size:0.75rem;color:var(--gold);letter-spacing:.15em;text-transform:uppercase;margin-bottom:.3rem;font-weight:700}
.story-text .secret-box .text{font-size:.95rem;font-weight:600;color:var(--ink)}
.story-text .code-block{background:var(--code-bg);border:1px solid var(--code-border);border-radius:12px;padding:1rem 1.1rem;margin:1rem 0;font-family:'Courier New',monospace;font-size:0.875rem;color:var(--cyan);overflow-x:auto;line-height:1.6;white-space:pre-wrap;overflow-wrap:break-word}
.story-text .code-block pre{margin:0;background:transparent!important;padding:0!important;white-space:pre-wrap;overflow-wrap:break-word}
.story-text .code-block code{font-family:inherit!important;font-size:inherit!important;background:transparent!important;text-shadow:none!important;white-space:pre-wrap!important}
.story-text .code-block table,.story-text .code-block th,.story-text .code-block td{white-space:normal;overflow-wrap:anywhere}

/* ── RECALL ── */
.recall-box{background:rgba(74,158,255,.05);border:1px solid rgba(74,158,255,.2);border-radius:16px;padding:1.1rem 1.3rem;margin:1.2rem 0}

/* ── CALLOUT ── */
.story-text .callout{display:flex;gap:.8rem;align-items:flex-start;border-radius:12px;padding:.9rem 1rem;margin:1rem 0}
.story-text .callout .co-icon{font-size:1.2rem;flex-shrink:0;line-height:1.5}
.story-text .callout.warn{background:rgba(239,68,68,.06);border-left:3px solid #ef4444}
.story-text .callout.tip{background:rgba(82,196,26,.06);border-left:3px solid #52c41a}
.story-text .callout.info{background:rgba(74,158,255,.06);border-left:3px solid #4a9eff}
.story-text .verse-trans{text-align:center;font-size:.85rem;color:var(--ink-mute);margin:-.5rem 0 1rem;padding:0 .9rem;font-style:italic}
.recall-title{font-weight:700;color:var(--moon);margin-bottom:.5rem;font-size:.85rem}
.recall-q{font-size:.95rem;color:var(--ink);margin-bottom:.7rem;line-height:1.7}
.recall-q.en{font-size:0.875rem;color:var(--ink-mute);font-style:italic}
.recall-toggle{font-family:'Noto Sans Bengali',sans-serif;font-size:0.85rem;color:var(--moon);background:rgba(74,158,255,.1);border:1px solid rgba(74,158,255,.25);border-radius:8px;padding:.3rem .8rem;cursor:pointer;transition:all .3s}
.recall-toggle:hover{background:rgba(74,158,255,.2)}
.recall-a{display:none;font-size:.9rem;color:var(--ink-dim);font-style:italic;padding:.6rem 0 0;border-top:1px solid rgba(74,158,255,.12);margin-top:.5rem;line-height:1.7}

/* ── PYTHON PLAYGROUND ── */
.playground{background:var(--code-bg);border:2px solid var(--code-border);border-radius:16px;padding:1.2rem;margin:1.5rem 0;overflow:hidden}
.playground-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:.8rem}
.playground-label{font-family:'Cinzel',serif;font-size:.85rem;color:var(--cyan);font-weight:700;display:flex;align-items:center;gap:.4rem}
.playground-hint{font-size:0.75rem;color:var(--ink-mute);font-style:italic}
.code-editor{width:100%;min-height:180px;background:#060410;border:1px solid rgba(54,214,231,.15);border-radius:10px;padding:.9rem;font-family:'Courier New','Consolas',monospace;font-size:.85rem;color:var(--leaf);line-height:1.6;resize:vertical;outline:none;tab-size:4;white-space:pre;overflow:auto}
.code-editor:focus{border-color:var(--cyan);box-shadow:0 0 12px rgba(54,214,231,.15)}
.code-output{background:#060410;border:1px solid rgba(54,214,231,.15);border-radius:10px;padding:.9rem;margin-top:.8rem;min-height:60px;max-height:300px;overflow-y:auto;font-family:'Courier New','Consolas',monospace;font-size:.82rem;color:var(--ink);line-height:1.5;white-space:pre-wrap}
.code-output.error{border-color:var(--fire);color:var(--fire)}
.code-output.success{border-color:var(--leaf)}
.run-btn{font-family:'Cinzel',serif;font-size:.82rem;font-weight:700;padding:.5rem 1.5rem;background:linear-gradient(135deg,var(--leaf),#389e0d);color:#fff;border:none;border-radius:8px;cursor:pointer;display:inline-flex;align-items:center;gap:.4rem;transition:all .3s}
.run-btn:hover{transform:translateY(-1px);box-shadow:0 0 20px rgba(82,196,26,.3)}
.run-btn:disabled{opacity:.5;cursor:wait}
.reset-btn{font-family:'Noto Sans Bengali',sans-serif;font-size:.75rem;color:var(--ink-mute);background:none;border:1px solid var(--panel-border);border-radius:8px;padding:.35rem .8rem;cursor:pointer;margin-left:.5rem;transition:all .3s}
.reset-btn:hover{color:var(--ink);border-color:var(--ink-dim)}
.py-status{font-size:0.75rem;color:var(--ink-mute);font-style:italic;margin-top:.4rem}
.py-status.ready{color:var(--leaf)}
.py-status.loading{color:var(--gold)}
.senior-lesson{background:rgba(179,127,235,.06);border:1px solid rgba(179,127,235,.25);border-radius:16px;padding:1.1rem 1.3rem;margin:1.2rem 0}
.senior-lesson .label{font-size:0.75rem;color:var(--purple);letter-spacing:.1em;text-transform:uppercase;font-weight:700;margin-bottom:.5rem}
.senior-lesson .title{font-size:.9rem;font-weight:700;color:var(--ink);margin-bottom:.5rem}
.senior-lesson p{font-size:.85rem;color:var(--ink-dim);line-height:1.7;margin-bottom:.5rem}

/* ── CONTINUE ── */
.continue-area{text-align:center;margin:2rem 0 1rem}
.continue-btn{font-family:'Noto Sans Bengali',sans-serif;font-size:1rem;font-weight:700;padding:.9rem 2.5rem;background:linear-gradient(135deg,var(--leaf),#389e0d);color:#fff;border:none;border-radius:50px;cursor:pointer;box-shadow:0 0 30px rgba(82,196,26,.3);transition:all .4s ease}
.continue-btn:hover{transform:translateY(-3px) scale(1.05)}

/* ── XP POPUP ── */
.xp-popup{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);background:linear-gradient(135deg,var(--gold),var(--fire));color:#0c0a1a;font-family:'Cinzel',serif;font-weight:900;font-size:1.8rem;padding:1.3rem 2.5rem;border-radius:20px;box-shadow:0 0 80px var(--gold-glow);z-index:1000;pointer-events:none;text-align:center;transition:transform .5s cubic-bezier(.34,1.56,.64,1)}
.xp-popup.show{transform:translate(-50%,-50%) scale(1)}
.xp-popup .xp-amount{font-size:2.2rem;display:block}
.xp-popup .xp-label{font-size:.75rem;letter-spacing:.1em;margin-top:.2rem;display:block}

/* ── CHEAT MODAL ── */
#cheat-modal{display:none;position:fixed;inset:0;background:rgba(0,0,0,.82);z-index:500;overflow-y:auto;padding:2rem 1rem}
.cheat-modal-inner{max-width:700px;margin:0 auto;background:var(--bg-mid);border-radius:20px;padding:1.8rem;border:1px solid var(--panel-border)}
.cheat-modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.2rem}
.cheat-modal-head h3{font-family:'Cinzel',serif;color:var(--gold-bright);font-size:1.2rem}
.cheat-close{background:none;border:none;color:var(--ink-mute);font-size:1.4rem;cursor:pointer;padding:.2rem .4rem;border-radius:6px;transition:color .3s}
.cheat-close:hover{color:var(--ink)}
.cheat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:.8rem}
.cheat-card{background:var(--panel);border:1px solid var(--panel-border);border-radius:12px;padding:1rem;text-align:center;transition:transform .3s}
.cheat-card:hover{transform:translateY(-3px)}
.cheat-card .icon{font-size:1.6rem;margin-bottom:.3rem}
.cheat-card .name{font-size:0.8rem;font-weight:700;color:var(--ink);margin-bottom:.2rem}
.cheat-card .tech{font-size:0.78rem;color:var(--cyan);margin-bottom:.4rem}
.cheat-card .secret{font-size:0.875rem;color:var(--ink);line-height:1.5;padding-top:.4rem;border-top:1px solid var(--panel-border)}

/* ── COMPLETE ── */
#complete-screen{display:none;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;text-align:center;padding:2rem;background:radial-gradient(ellipse at center,#1a1040 0%,#0c0a1a 70%)}
#complete-screen.active{display:flex}
.complete-crown{font-size:4rem;margin-bottom:1rem;animation:spin 6s linear infinite}
@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
.complete-title{font-family:'Cinzel',serif;font-size:clamp(1.6rem,4vw,2.5rem);font-weight:900;background:linear-gradient(135deg,var(--gold-bright),var(--cyan),var(--gold-bright));background-size:200% auto;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:shimmer 3s linear infinite;margin-bottom:1rem}
@keyframes shimmer{to{background-position:200% center}}
.complete-text{font-size:1rem;color:var(--ink);max-width:560px;line-height:1.8;margin-bottom:1.5rem}
.complete-verse{font-family:'Amiri',serif;font-size:1.3rem;color:var(--gold-bright);margin-bottom:.5rem}
.cheat-section-end{max-width:760px;margin:0 auto;padding:2rem 1rem}
.cheat-section-end h3{font-family:'Cinzel',serif;text-align:center;font-size:1.4rem;color:var(--gold-bright);margin-bottom:1.2rem}

/* ── DIAGRAMS (inline SVG) ── */
.story-text .diagram{background:linear-gradient(135deg,rgba(20,16,45,.6),rgba(10,8,21,.8));border:1px solid var(--panel-border);border-radius:14px;padding:1rem;margin:1.2rem 0;overflow:hidden}
.story-text .diagram svg{display:block;width:100%;height:auto;max-width:940px;margin:0 auto;font-family:'Courier New',monospace}
.story-text .diagram .diag-cap{font-size:0.75rem;color:var(--ink-mute);text-align:center;margin-top:.6rem;font-style:italic;letter-spacing:.02em}
.story-text .diagram .diag-title{font-family:'Cinzel',serif;font-size:0.8rem;color:var(--gold);text-align:center;margin-bottom:.6rem;letter-spacing:.1em;text-transform:uppercase}
.story-text .diagram svg .grid-line{stroke:rgba(240,193,75,.1);stroke-width:1}
.story-text .diagram svg .axis{stroke:var(--ink-mute);stroke-width:1.5}
.story-text .diagram svg .axis-label{fill:var(--ink-mute);font-size:10px}
.story-text .diagram svg .node{fill:rgba(20,16,45,.95);stroke:var(--gold);stroke-width:2}
.story-text .diagram svg .node-hot{fill:rgba(255,107,53,.25);stroke:var(--fire);stroke-width:2.5}
.story-text .diagram svg .node-cyan{fill:rgba(54,214,231,.18);stroke:var(--cyan);stroke-width:2}
.story-text .diagram svg .node-leaf{fill:rgba(82,196,26,.18);stroke:var(--leaf);stroke-width:2}
.story-text .diagram svg .edge{stroke:var(--ink-dim);stroke-width:1.5;fill:none}
.story-text .diagram svg .edge-hot{stroke:var(--fire);stroke-width:2.5;fill:none;marker-end:url(#arrowFire)}
.story-text .diagram svg .edge-cyan{stroke:var(--cyan);stroke-width:2;fill:none;marker-end:url(#arrowCyan)}
.story-text .diagram svg .lbl{fill:var(--ink);font-size:12px;font-weight:700;text-anchor:middle;dominant-baseline:central}
.story-text .diagram svg .lbl-sm{fill:var(--ink-dim);font-size:10px;text-anchor:middle}
.story-text .diagram svg .curve{fill:none;stroke-width:2.5}
.story-text .diagram svg .c1{stroke:var(--leaf)}
.story-text .diagram svg .clog{stroke:var(--cyan)}
.story-text .diagram svg .cn{stroke:var(--gold)}
.story-text .diagram svg .cnlog{stroke:#b37feb}
.story-text .diagram svg .cn2{stroke:var(--rose)}
.story-text .diagram svg .c2n{stroke:var(--fire)}
.story-text .diagram svg .dot{fill:var(--gold-bright)}
.story-text .diagram svg .cell{fill:rgba(20,16,45,.6);stroke:var(--ink-dim);stroke-width:1}
.story-text .diagram svg .cell-hot{fill:rgba(255,107,53,.3);stroke:var(--fire);stroke-width:1.5}
.story-text .diagram svg .cell-good{fill:rgba(82,196,26,.25);stroke:var(--leaf);stroke-width:1.5}
.story-text .diagram svg .legend{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap;margin-top:.6rem;font-size:0.75rem;color:var(--ink-dim)}
.story-text .legend-item{display:inline-flex;align-items:center;gap:.3rem}
.story-text .legend-swatch{display:inline-block;width:14px;height:3px;border-radius:2px}
.story-text .diagram svg .q-mark{fill:var(--fire);font-size:18px;font-weight:900;text-anchor:middle}
.story-text .diagram svg .bit-on{fill:var(--gold-bright);stroke:var(--gold);stroke-width:1.5}
.story-text .diagram svg .bit-off{fill:rgba(20,16,45,.6);stroke:var(--ink-mute);stroke-width:1.5}

/* ── MOBILE ── */
@media(max-width:600px){
  .doors-grid{grid-template-columns:1fr}
  .story-container{padding:1.5rem 1rem 3rem}
  .hud-xp-wrap{flex:1 1 100%;order:3}
  #hud{gap:.4rem;padding:.5rem .6rem}
  .code-editor{font-size:.78rem;min-height:140px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}

/* ported (audit Aug 2026) */
.story-text svg .cell-cyan{fill:rgba(61,214,196,.18);stroke:#22d3ee;stroke-width:2}
.story-text svg .edge-good{stroke:#52c41a;stroke-width:2.5}