*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg-deep:#0c0a08;--bg-mid:#1a1410;--amber:#fbbf24;--amber-bright:#fde047;
  --amber-glow:rgba(251,191,36,.3);--teal:#3dd6c4;--teal-glow:rgba(253,224,71,.2);
  --ink:#e8e6f0;--ink-dim:#9290a8;--ink-mute:#7d7b94;
  --panel:rgba(19,26,43,.85);--panel-border:rgba(251,191,36,.12);
  --fire:#ff6b35;--leaf:#52c41a;--moon:#5b9eff;--purple:#b37feb;--rose:#f06292;
  --code-bg:#070a0f;--code-border:rgba(253,224,71,.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}
.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,#1a1410 0%,#0c0a08 70%)}
.title-arabic{font-family:'Amiri',serif;font-size:clamp(1.2rem,3vw,1.7rem);color:var(--amber);opacity:.6;margin-bottom:.5rem;letter-spacing:.04em}
.title-main{font-family:'Cinzel',serif;font-size:clamp(1.6rem,4.8vw,3rem);font-weight:900;background:linear-gradient(135deg,var(--amber-bright),var(--teal),var(--amber));background-size:200% auto;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:.03em;line-height:1.2;margin-bottom:.4rem;animation:shimmer 5s linear infinite}
@keyframes shimmer{to{background-position:200% center}}
.title-sub{font-size:clamp(.9rem,2vw,1.2rem);color:var(--ink-dim);font-weight:600;margin-bottom:.8rem}
.title-desc{max-width:520px;font-size:.85rem;color:var(--ink-mute);line-height:1.7;margin-bottom:1.8rem}
.start-btn{font-family:'Cinzel',serif;font-size:clamp(.95rem,1.6vw,1.15rem);font-weight:700;padding:.9rem 2.5rem;background:linear-gradient(135deg,var(--amber-bright),var(--amber));color:#0c0a08;border:none;border-radius:50px;cursor:pointer;letter-spacing:.05em;text-transform:uppercase;box-shadow:0 0 40px var(--amber-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(--amber-glow),0 6px 30px rgba(0,0,0,.6)}
.prologue-body{max-width:620px;text-align:left}
.prologue-body p{font-size:clamp(.92rem,1.4vw,1.05rem);line-height:1.9;color:var(--ink);margin-bottom:.85rem}
.prologue-body p.en{color:var(--ink-mute);font-style:italic;font-size:0.875rem;line-height:1.65;margin-top:-.35rem;margin-bottom:1.2rem;padding-left:1rem;border-left:2px solid var(--panel-border)}
.prologue-title{font-family:'Cinzel',serif;font-size:clamp(1.1rem,2.2vw,1.45rem);font-weight:700;color:var(--amber-bright);margin-bottom:1.3rem;text-align:center}
.prologue-body .p-divider{border:none;border-top:1px solid var(--panel-border);margin:1rem 0}
#hud{position:sticky;top:0;z-index:100;background:rgba(10,13,18,.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(.78rem,1.3vw,.95rem);font-weight:700;color:var(--amber-bright);display:flex;align-items:center;gap:.4rem}
.hud-level{font-size:0.78rem;color:var(--ink-dim);background:rgba(251,191,36,.1);padding:.2rem .65rem;border-radius:20px;border:1px solid var(--panel-border)}
.hud-xp-wrap{flex:1;max-width:240px;min-width:90px}
.hud-xp-bar{height:7px;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(--amber-bright),var(--teal));border-radius:10px;transition:width .8s cubic-bezier(.4,0,.2,1);box-shadow:0 0 8px var(--amber-glow)}
.hud-xp-text{font-size:0.75rem;color:var(--ink-mute);text-align:center;margin-top:.15rem}
.hud-btn{font-size:0.8rem;color:var(--ink-mute);background:none;border:1px solid var(--panel-border);border-radius:10px;padding:.22rem .5rem;cursor:pointer;transition:all .3s;font-family:'Noto Sans Bengali',sans-serif;white-space:nowrap}
.hud-btn:hover{color:var(--amber-bright);border-color:var(--amber-bright)}
#map-screen{padding:1rem .5rem 3rem}
.map-header{text-align:center;padding:1.3rem 1rem .8rem}
.map-header h2{font-family:'Cinzel',serif;font-size:clamp(1.2rem,2.5vw,1.7rem);font-weight:700;color:var(--amber-bright);margin-bottom:.2rem}
.map-header p{color:var(--ink-mute);font-size:.85rem}
.doors-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.1rem;max-width:920px;margin:0 auto;padding:1.3rem 1rem}
.door-card{position:relative;background:var(--panel);border:1px solid var(--panel-border);border-radius:16px;padding:1.3rem;cursor:pointer;transition:all .4s cubic-bezier(.4,0,.2,1);overflow:hidden;min-height:160px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}
.door-card:hover{transform:translateY(-4px);border-color:var(--amber-bright);box-shadow:0 8px 30px rgba(0,0,0,.4),0 0 30px var(--amber-glow)}
.door-card:focus-visible{outline:2px solid var(--amber-bright);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:.7rem;right:.7rem;font-size:.95rem;color:var(--leaf);font-weight:700}
.door-card.next-door{border-color:var(--teal);animation:nextPulse 2.5s ease-in-out infinite}
@keyframes nextPulse{0%,100%{box-shadow:0 0 15px var(--teal-glow)}50%{box-shadow:0 0 35px var(--teal-glow)}}
.door-num{font-family:'Cinzel',serif;font-size:0.75rem;color:var(--ink-mute);letter-spacing:.12em;margin-bottom:.35rem}
.door-icon{font-size:2.3rem;margin-bottom:.35rem}
.door-title{font-family:'Cinzel',serif;font-weight:700;font-size:.95rem;color:var(--ink);margin-bottom:.15rem}
.door-subtitle{font-size:0.78rem;color:var(--ink-dim);margin-bottom:.35rem}
.door-tech{font-size:0.78rem;color:var(--teal);font-weight:600;background:rgba(253,224,71,.08);padding:.18rem .55rem;border-radius:8px}
.door-lock-hint{font-size:0.78rem;color:var(--ink-mute);margin-top:.25rem;font-style:italic}
#story-screen{padding:0;min-height:100vh}
.story-back{position:sticky;top:0;z-index:50;padding:.5rem 1rem;background:rgba(10,13,18,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--panel-border);display:flex;align-items:center;gap:1rem}
.back-btn{font-family:'Noto Sans Bengali',sans-serif;font-size:.82rem;color:var(--ink-dim);background:none;border:none;cursor:pointer;padding:.25rem .5rem;border-radius:8px;transition:color .3s}
.back-btn:hover{color:var(--amber-bright)}
.story-container{max-width:820px;margin:0 auto;padding:1.8rem 1.2rem 3.5rem}
.story-progress{text-align:center;font-family:'Cinzel',serif;font-size:0.78rem;color:var(--ink-mute);letter-spacing:.12em;text-transform:uppercase;margin-bottom:.9rem;padding-bottom:.7rem;border-bottom:1px solid var(--panel-border)}
.story-door-banner{text-align:center;margin-bottom:1.3rem;padding-bottom:.9rem;border-bottom:1px solid var(--panel-border)}
.story-door-icon{font-size:2.8rem;margin-bottom:.2rem}
.story-door-name{font-family:'Cinzel',serif;font-size:clamp(1.2rem,2.3vw,1.5rem);font-weight:700;margin-bottom:.15rem}
.story-text{font-size:clamp(.9rem,1.3vw,1.02rem);line-height:1.85;color:var(--ink)}
.story-text p{margin-bottom:.85rem}
.story-text .scene-setting{color:var(--ink-dim);font-style:italic;font-size:.85rem;border-left:2px solid var(--amber-glow);padding-left:.9rem;margin:1rem 0}
.story-text .scene-setting.en{color:var(--ink-mute);font-size:0.875rem;border-left-color:rgba(251,191,36,.08)}
.story-text .dialogue{background:rgba(251,191,36,.05);border-radius:12px;padding:.85rem 1rem;margin:.6rem 0;border:1px solid rgba(251,191,36,.1)}
.story-text .dialogue::before{content:'➤';color:var(--amber-bright);margin-right:.45rem;font-size:.78rem}
.story-text p.en,.story-text .dialogue.en{color:var(--ink-mute);font-style:italic;font-size:0.875rem;margin-top:-.35rem}
.story-text .dialogue.en{background:rgba(251,191,36,.02);border-color:rgba(251,191,36,.06)}
.story-text .dialogue.en::before{content:'↳';color:var(--ink-mute)}
.story-text .verse{text-align:center;font-family:'Amiri',serif;font-size:1rem;color:var(--amber-bright);margin:1rem 0;padding:.9rem;background:rgba(251,191,36,.04);border-radius:16px;border:1px solid var(--panel-border)}
.story-text .secret-box{background:linear-gradient(135deg,rgba(251,191,36,.08),rgba(253,224,71,.05));border:1px solid var(--amber-bright);border-radius:16px;padding:1rem;margin:1rem 0;text-align:center}
.story-text .secret-box .label{font-size:0.75rem;color:var(--amber-bright);letter-spacing:.12em;text-transform:uppercase;margin-bottom:.25rem;font-weight:700}
.story-text .secret-box .text{font-size:.92rem;font-weight:600;color:var(--ink)}
.story-text .code-block{background:var(--code-bg);border:1px solid var(--code-border);border-radius:12px;padding:.9rem 1rem;margin:.9rem 0;font-family:'Courier New',monospace;font-size:0.875rem;color:var(--teal);overflow-x:auto;line-height:1.55;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}
.story-text .compare{display:grid;grid-template-columns:1fr 1fr;gap:.7rem;margin:1rem 0}
.story-text .cmp-card{border-radius:10px;padding:.8rem;font-size:0.9rem;line-height:1.55}
.story-text .cmp-bad{background:rgba(255,107,53,.08);border:1px solid rgba(255,107,53,.2)}
.story-text .cmp-good{background:rgba(82,196,26,.08);border:1px solid rgba(82,196,26,.2)}
.story-text .cmp-label{font-family:'Cinzel',serif;font-size:0.75rem;font-weight:700;margin-bottom:.35rem;text-transform:uppercase;letter-spacing:.04em}
.story-text .cmp-bad .cmp-label{color:var(--fire)}
.story-text .cmp-good .cmp-label{color:var(--leaf)}
.senior-insight{background:rgba(179,127,235,.06);border:1px solid rgba(179,127,235,.25);border-radius:16px;padding:1rem 1.2rem;margin:1rem 0}
.senior-insight .label{font-size:0.75rem;color:var(--purple);letter-spacing:.1em;text-transform:uppercase;font-weight:700;margin-bottom:.4rem}
.senior-insight .title{font-size:.88rem;font-weight:700;color:var(--ink);margin-bottom:.4rem}
.senior-insight p{font-size:0.875rem;color:var(--ink-dim);line-height:1.65;margin-bottom:.35rem}
.recall-box{background:rgba(91,158,255,.05);border:1px solid rgba(91,158,255,.2);border-radius:16px;padding:1rem 1.2rem;margin:1rem 0}
.recall-title{font-weight:700;color:var(--moon);margin-bottom:.4rem;font-size:.82rem}
.recall-q{font-size:.92rem;color:var(--ink);margin-bottom:.6rem;line-height:1.65}
.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(91,158,255,.1);border:1px solid rgba(91,158,255,.25);border-radius:8px;padding:.28rem .75rem;cursor:pointer;transition:all .3s}
.recall-toggle:hover{background:rgba(91,158,255,.2)}
.recall-a{display:none;font-size:.88rem;color:var(--ink-dim);font-style:italic;padding:.5rem 0 0;border-top:1px solid rgba(91,158,255,.12);margin-top:.4rem;line-height:1.65}
.continue-area{text-align:center;margin:1.8rem 0 1rem}
.continue-btn{font-family:'Noto Sans Bengali',sans-serif;font-size:.95rem;font-weight:700;padding:.85rem 2.3rem;background:linear-gradient(135deg,var(--amber-bright),var(--amber));color:#0c0a08;border:none;border-radius:50px;cursor:pointer;box-shadow:0 0 30px var(--amber-glow);transition:all .4s ease}
.continue-btn:hover{transform:translateY(-3px) scale(1.05)}
.xp-popup{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);background:linear-gradient(135deg,var(--amber-bright),var(--amber));color:#0c0a08;font-family:'Cinzel',serif;font-weight:900;font-size:1.7rem;padding:1.2rem 2.3rem;border-radius:20px;box-shadow:0 0 70px var(--amber-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:2rem;display:block}
.xp-popup .xp-label{font-size:0.75rem;letter-spacing:.08em;margin-top:.15rem;display:block}
#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:680px;margin:0 auto;background:var(--bg-mid);border-radius:20px;padding:1.6rem;border:1px solid var(--panel-border)}
.cheat-modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}
.cheat-modal-head h3{font-family:'Cinzel',serif;color:var(--amber-bright);font-size:1.1rem}
.cheat-close{background:none;border:none;color:var(--ink-mute);font-size:1.3rem;cursor:pointer;padding:.15rem .35rem;border-radius:6px;transition:color .3s}
.cheat-close:hover{color:var(--ink)}
.cheat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:.7rem}
.cheat-card{background:var(--panel);border:1px solid var(--panel-border);border-radius:12px;padding:.9rem;text-align:center;transition:transform .3s}
.cheat-card:hover{transform:translateY(-3px)}
.cheat-card .icon{font-size:1.5rem;margin-bottom:.25rem}
.cheat-card .name{font-size:0.8rem;font-weight:700;color:var(--ink);margin-bottom:.15rem}
.cheat-card .tech{font-size:0.78rem;color:var(--teal);margin-bottom:.35rem}
.cheat-card .secret{font-size:0.875rem;color:var(--ink);line-height:1.45;padding-top:.35rem;border-top:1px solid var(--panel-border)}
#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,#1a1410 0%,#0c0a08 70%)}
#complete-screen.active{display:flex}
.complete-crown{font-size:3.5rem;margin-bottom:.8rem;animation:spin 6s linear infinite}
@keyframes spin{from{transform:rotate(0)}to{transform:rotate(360deg)}}
.complete-title{font-family:'Cinzel',serif;font-size:clamp(1.5rem,3.8vw,2.3rem);font-weight:900;background:linear-gradient(135deg,var(--amber-bright),var(--teal),var(--amber-bright));background-size:200% auto;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:shimmer 3s linear infinite;margin-bottom:.8rem}
.complete-text{font-size:.95rem;color:var(--ink);max-width:540px;line-height:1.75;margin-bottom:1.3rem}
.complete-verse{font-family:'Amiri',serif;font-size:1.2rem;color:var(--amber-bright);margin-bottom:.4rem}
.cheat-section-end{max-width:740px;margin:0 auto;padding:1.8rem 1rem}
.cheat-section-end h3{font-family:'Cinzel',serif;text-align:center;font-size:1.3rem;color:var(--amber-bright);margin-bottom:1rem}
/* ── SIGN VISUAL BOX (for drawing signs in ASCII/emoji) ── */
.story-text .sign-visual{background:rgba(251,191,36,.06);border:2px solid var(--amber);border-radius:14px;padding:1.2rem 1rem;margin:1rem 0;text-align:center;font-family:'Courier New',monospace;font-size:.82rem;line-height:1.45;overflow-x:auto;white-space:pre-wrap;overflow-wrap:anywhere;color:var(--ink)}
.story-text .sign-visual .sign-title{font-family:'Cinzel',serif;font-size:0.75rem;color:var(--amber-bright);text-transform:uppercase;letter-spacing:.1em;margin-bottom:.5rem}

/* ═══ CSS-DRAWN TRAFFIC SIGNS ═══ */
.sign-gallery{display:flex;flex-wrap:wrap;gap:1.2rem;justify-content:center;margin:1.2rem 0}
.sign-item{display:flex;flex-direction:column;align-items:center;gap:.35rem}
.sign-item .sign-label{font-size:0.75rem;color:var(--ink-dim);font-weight:600;text-align:center;line-height:1.3}
/* STOP — Octagon */
.sign-stop{width:72px;height:72px;background:#c0392b;border:3px solid #fff;clip-path:polygon(30% 0,70% 0,100% 30%,100% 70%,70% 100%,30% 100%,0 70%,0 30%);display:flex;align-items:center;justify-content:center;font-family:'Cinzel',serif;font-weight:900;font-size:.7rem;color:#fff;letter-spacing:.02em}
/* YIELD — Triangle */
.sign-yield{width:0;height:0;border-left:38px solid transparent;border-right:38px solid transparent;border-bottom:66px solid #c0392b;position:relative;filter:drop-shadow(0 0 1px #fff)}
.sign-yield::after{content:'';position:absolute;top:18px;left:-26px;width:0;height:0;border-left:26px solid transparent;border-right:26px solid transparent;border-bottom:44px solid #fff}
/* Speed Limit — Rectangle */
.sign-speed{width:60px;height:72px;background:#fff;border:2px solid #222;display:flex;flex-direction:column;align-items:center;justify-content:center;font-family:'Arial',sans-serif;color:#222;border-radius:4px}
.sign-speed .sp-top{font-size:.42rem;font-weight:700;text-transform:uppercase;line-height:1.1;text-align:center}
.sign-speed .sp-num{font-size:1.4rem;font-weight:900;line-height:1}
/* Warning — Diamond */
.sign-warn{width:64px;height:64px;background:#f1c40f;border:3px solid #222;transform:rotate(45deg);display:flex;align-items:center;justify-content:center}
.sign-warn-inner{transform:rotate(-45deg);font-size:1.2rem}
/* School — Pentagon */
.sign-school{width:0;height:0;border-left:36px solid transparent;border-right:36px solid transparent;border-bottom:48px solid #f1c40f;position:relative}
.sign-school::before{content:'';position:absolute;top:-22px;left:-36px;width:0;height:0;border-left:36px solid transparent;border-right:36px solid transparent;border-bottom:22px solid #f1c40f}
.sign-school::after{content:'🏫';position:absolute;top:5px;left:-10px;font-size:1rem}
/* DO NOT ENTER — Square */
.sign-dne{width:60px;height:60px;background:#c0392b;border:2px solid #fff;border-radius:4px;display:flex;align-items:center;justify-content:center}
.sign-dne::after{content:'';width:40px;height:7px;background:#fff}
/* NO TURN — Circle */
.sign-no{width:58px;height:58px;background:#c0392b;border:3px solid #fff;border-radius:50%;display:flex;align-items:center;justify-content:center;position:relative}
.sign-no::after{content:'';width:38px;height:4px;background:#fff;transform:rotate(45deg);position:absolute}
/* Construction — Orange Diamond */
.sign-construction{width:64px;height:64px;background:#e67e22;border:3px solid #222;transform:rotate(45deg);display:flex;align-items:center;justify-content:center}
.sign-construction-inner{transform:rotate(-45deg);font-size:1.1rem}
/* DO NOT ENTER big (wrong way) */
.sign-wrong{width:60px;height:60px;background:#c0392b;border:2px solid #fff;border-radius:4px;display:flex;align-items:center;justify-content:center;font-family:'Arial',sans-serif;font-size:.5rem;font-weight:900;color:#fff;text-align:center;line-height:1.1}
/* YIELD — small alt */
.sign-yield-alt{width:72px;height:62px;position:relative}
/* Guide Green */
.sign-guide{width:56px;height:40px;background:#27ae60;border:2px solid #fff;border-radius:3px;display:flex;align-items:center;justify-content:center;font-size:.5rem;color:#fff;font-weight:700}
/* Service Blue */
.sign-service{width:56px;height:40px;background:#2980b9;border:2px solid #fff;border-radius:3px;display:flex;align-items:center;justify-content:center;font-size:.5rem;color:#fff;font-weight:700}

/* ═══ CSS TRAFFIC LIGHT ═══ */
.traffic-light{display:inline-flex;flex-direction:column;align-items:center;gap:.35rem;padding:.5rem;background:#1a1a1a;border-radius:12px;border:2px solid #333;margin:.5rem auto}
.traffic-light .light{width:32px;height:32px;border-radius:50%;margin:3px auto}
.tl-red{background:radial-gradient(circle at 35% 35%,#ff6b6b,#c0392b);box-shadow:0 0 10px rgba(255,80,80,.5)}
.tl-yellow{background:radial-gradient(circle at 35% 35%,#feca57,#f1c40f);box-shadow:0 0 10px rgba(251,191,36,.5)}
.tl-green{background:radial-gradient(circle at 35% 35%,#55efc4,#27ae60);box-shadow:0 0 10px rgba(39,174,96,.5)}
.tl-off{background:#333;border:1px solid #222}
.traffic-light-label{font-size:.6rem;color:var(--ink-dim);font-weight:600;text-align:center;margin-top:.2rem}
/* Horizontal traffic light */
.traffic-light-h{display:inline-flex;gap:.4rem;padding:.4rem .6rem;background:#1a1a1a;border-radius:20px;border:2px solid #333;margin:.5rem auto}
.traffic-light-h .light{margin:0}

/* ═══ PAVEMENT MARKING BAR ═══ */
.pavement-bar{height:24px;border-radius:2px;margin:3px 0;display:flex;align-items:center;padding-left:.5rem;font-size:0.75rem;color:var(--ink-dim);font-weight:600}
.pm-double-yellow{border-top:3px solid #f1c40f;border-bottom:3px solid #f1c40f;height:6px;margin:6px 0}
.pm-solid-yellow{border-top:3px solid #f1c40f;height:3px;margin:4px 0}
.pm-dashed-yellow{background:repeating-linear-gradient(90deg,#f1c40f 0,#f1c40f 12px,transparent 12px,transparent 22px);height:3px;margin:4px 0}
.pm-solid-white{border-top:2px solid #e8e6f0;height:2px;margin:4px 0}
.pm-dashed-white{background:repeating-linear-gradient(90deg,#e8e6f0 0,#e8e6f0 10px,transparent 10px,transparent 18px);height:2px;margin:4px 0}

/* ═══ HILL PARKING VISUAL ═══ */
.hill-park{display:flex;gap:1.5rem;justify-content:center;flex-wrap:wrap;margin:1rem 0}
.hill-card{background:rgba(255,255,255,.04);border:1px solid var(--panel-border);border-radius:10px;padding:.8rem;text-align:center;width:160px}
.hill-card .hc-icon{font-size:2rem;margin:.3rem 0}
.hill-card .hc-label{font-family:'Cinzel',serif;font-size:.6rem;color:var(--amber-bright);font-weight:700;text-transform:uppercase;letter-spacing:.05em;margin-bottom:.3rem}
.hill-card .hc-rule{font-size:0.78rem;color:var(--ink);font-weight:600;margin-top:.3rem}
.hill-card .hc-trick{font-size:.6rem;color:var(--leaf);margin-top:.2rem}

/* ═══ ROAD TEST IMAGE GALLERY ═══ */
.rt-image{margin:1.2rem 0;text-align:center}
.rt-image img{max-width:100%;border-radius:12px;border:1px solid var(--panel-border);box-shadow:0 4px 20px rgba(0,0,0,.3)}
.rt-image .rt-caption{font-size:0.75rem;color:var(--ink-dim);margin-top:.4rem;line-height:1.4;font-style:italic}
.rt-image-grid{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center;margin:1.2rem 0}
.rt-img-card{text-align:center;max-width:200px}
.rt-img-card img{max-width:100%;border-radius:10px;border:1px solid var(--panel-border)}
.rt-img-card .rt-caption{font-size:0.75rem;color:var(--ink-dim);margin-top:.3rem;line-height:1.35}

/* ═══ BLIND SPOT VISUAL ═══ */
.blind-spot-vis{position:relative;width:100%;max-width:300px;margin:1rem auto;padding:1rem}
.bsv-car{font-size:2rem;text-align:center}
.bsv-zone{font-size:.6rem;color:var(--fire);font-weight:700;padding:.15rem .4rem;background:rgba(239,68,68,.08);border-radius:4px;display:inline-block;margin:1px}

/* ── SCENARIO BOX (real-world complex situations) ── */
.story-text .scenario-box{background:linear-gradient(135deg,rgba(239,68,68,.06),rgba(251,191,36,.06));border-left:3px solid var(--fire);border-radius:0 12px 12px 0;padding:.85rem 1rem;margin:1rem 0}
.story-text .scenario-box .scn-label{font-family:'Cinzel',serif;font-size:0.75rem;font-weight:700;color:var(--fire);text-transform:uppercase;letter-spacing:.08em;margin-bottom:.4rem;display:flex;align-items:center;gap:.35rem}
.story-text .scenario-box .scn-question{font-size:.85rem;color:var(--ink);font-weight:600;margin-bottom:.3rem}
.story-text .scenario-box .scn-answer{font-size:0.875rem;color:var(--leaf);font-weight:600}
.story-text .scenario-box .scn-explain{font-size:.76rem;color:var(--ink-dim);margin-top:.3rem}

/* ── UX: scenario reveal, EN jump, reading progress ── */
.scn-hidden{display:none!important}
.scn-reveal-btn{font-family:'Noto Sans Bengali',sans-serif;font-size:.78rem;color:var(--amber-bright);background:rgba(251,191,36,.08);border:1px solid rgba(251,191,36,.3);border-radius:8px;padding:.45rem .9rem;cursor:pointer;transition:all .3s;margin:.35rem 0;display:block;min-height:38px}
.scn-reveal-btn:hover{background:rgba(251,191,36,.16);transform:translateY(-1px)}
.en-jump{font-family:'Segoe UI',sans-serif;font-size:0.75rem;color:var(--moon);background:rgba(91,158,255,.08);border:1px solid rgba(91,158,255,.3);border-radius:20px;padding:.35rem .9rem;cursor:pointer;transition:all .3s;margin-top:.6rem;display:inline-block;min-height:32px}
.en-jump:hover{background:rgba(91,158,255,.18)}
#read-progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--fire),var(--amber-bright),var(--teal));z-index:200;pointer-events:none;transition:width .15s linear;box-shadow:0 0 6px var(--amber-glow)}

/* ── DIAGRAM BOX (top-down road/intersection diagrams) ── */
.story-text .diagram-box{background:var(--code-bg);border:1px solid var(--code-border);border-radius:12px;padding:1rem;margin:1rem 0;font-family:'Courier New',monospace;font-size:0.8rem;color:var(--ink-dim);line-height:1.35;overflow-x:auto;white-space:pre-wrap;overflow-wrap:anywhere;text-align:center}
.story-text .diagram-box .dia-title{font-family:'Cinzel',serif;font-size:0.8rem;color:var(--amber-bright);text-transform:uppercase;letter-spacing:.1em;margin-bottom:.5rem;font-weight:700}

@media(max-width:600px){
  .doors-grid{grid-template-columns:1fr}
  .story-container{padding:1.4rem 1rem 3rem}
  .hud-xp-wrap{flex:1 1 100%;order:3}
  #hud{gap:.35rem;padding:.45rem .55rem}
  .hud-btn{padding:.45rem .7rem;font-size:0.8rem;min-height:38px}
  .story-text .compare{grid-template-columns:1fr}
  .story-text .sign-visual,.story-text .diagram-box{font-size:.8rem;padding:.8rem .5rem}
  .story-text .code-block{white-space:pre-wrap;word-break:break-word;font-size:0.875rem;padding:.85rem .7rem}
  .recall-toggle,.scn-reveal-btn{min-height:44px;font-size:.85rem}
  .back-btn{padding:.5rem .7rem;min-height:40px}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}}

/* Callout Warn */
.callout{background:rgba(251,191,36,.06);border:1px solid rgba(251,191,36,.25);border-radius:14px;padding:1rem 1.2rem;margin:1.2rem 0}
.callout.warn{border-color:rgba(240,98,146,.25);background:rgba(240,98,146,.04)}
.callout .co-icon{font-size:1.2rem;margin-right:.5rem}
.callout strong{color:var(--amber,#fbbf24)}