/* ══════════════════════════════════════════════════════════
   TRAIN CONTROL MANAGER v2 — Realistic World CSS
   ══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700&family=Rajdhani:wght@400;500;600;700&display=swap');

/* ─── Design Tokens ─────────────────────────────────────── */
:root {
  --bg:         #030a14;
  --bg2:        #071220;
  --card:       #0b1c30;
  --panel:      rgba(7,18,32,0.92);
  --cyan:       #00e5ff;
  --gold:       #ffd700;
  --orange:     #ff6b2b;
  --green:      #22c55e;
  --red:        #ef4444;
  --purple:     #a855f7;
  --textP:      #e2eef4;
  --textS:      #5a7a98;
  --textD:      #2d4a60;
  --bcyan:      rgba(0,229,255,0.2);
  --bcard:      rgba(0,229,255,0.12);
  --scyan:      0 0 22px rgba(0,229,255,0.45);
  --sgold:      0 0 22px rgba(255,215,0,0.45);
  --sred:       0 0 22px rgba(239,68,68,0.65);
  --sgreen:     0 0 22px rgba(34,197,94,0.45);
  --fhud:       'Orbitron',monospace;
  --fui:        'Inter',sans-serif;
  --flbl:       'Rajdhani',sans-serif;
  --ease:       all 0.28s cubic-bezier(.4,0,.2,1);
  --r1:5px; --r2:10px; --r3:18px;
}

/* ─── Reset ─────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html,body{width:100%;height:100%;overflow:hidden;font-family:var(--fui);background:var(--bg);color:var(--textP);-webkit-font-smoothing:antialiased;user-select:none;}
::-webkit-scrollbar{width:4px;}::-webkit-scrollbar-track{background:var(--bg2);}::-webkit-scrollbar-thumb{background:var(--cyan);border-radius:2px;}

/* ─── Background ────────────────────────────────────────── */
.background-grid{position:fixed;inset:0;z-index:-2;background-image:linear-gradient(rgba(0,229,255,0.025) 1px,transparent 1px),linear-gradient(90deg,rgba(0,229,255,0.025) 1px,transparent 1px);background-size:55px 55px;animation:gridDrift 25s linear infinite;pointer-events:none;}
@keyframes gridDrift{0%{background-position:0 0}100%{background-position:55px 55px}}
.background-thumbnail{position:absolute;inset:0;background:url('../assets/icons/thumbnail.svg') center/cover no-repeat;opacity:0.12;filter:blur(4px) saturate(0.5);z-index:-1;}
.scanlines{position:fixed;inset:0;background:linear-gradient(rgba(18,16,16,0) 50%,rgba(0,0,0,0.1) 50%),linear-gradient(90deg,rgba(255,0,0,0.02),rgba(0,255,80,0.01),rgba(0,0,255,0.02));background-size:100% 3px,15px 100%;z-index:999;pointer-events:none;opacity:0.2;}
.bg-orbs{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none;}
.bg-orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:0.10;animation:orbF 18s ease-in-out infinite;}
.bg-orb:nth-child(1){width:500px;height:500px;background:var(--cyan);top:-200px;left:-120px;animation-delay:0s;}
.bg-orb:nth-child(2){width:420px;height:420px;background:var(--purple);bottom:-160px;right:-120px;animation-delay:6s;}
.bg-orb:nth-child(3){width:320px;height:320px;background:var(--gold);top:40%;left:60%;animation-delay:12s;}
@keyframes orbF{0%,100%{transform:translate(0,0) scale(1);}33%{transform:translate(28px,-28px) scale(1.05);}66%{transform:translate(-18px,18px) scale(0.95);}}

/* ─── Screens ───────────────────────────────────────────── */
.screen{position:fixed;inset:0;display:none;align-items:center;justify-content:center;z-index:100;backdrop-filter: blur(8px);}
.screen.active{display:flex;}

/* ══════════════════════════════════════════════════════════
   LOADING SCREEN
══════════════════════════════════════════════════════════ */
#screen-intro{flex-direction:column;background:var(--bg);z-index:200;backdrop-filter:none;}
.intro-logo{display:flex;flex-direction:column;align-items:center;gap:18px;animation:fadeUp 1s ease-out forwards;}
@keyframes fadeUp{from{opacity:0;transform:translateY(40px);}to{opacity:1;transform:translateY(0);}}

.logo-icon{
  width:140px;height:140px;border-radius:30px;
  background:linear-gradient(135deg,#001530,#002d60,#001530);
  border:3px solid var(--cyan);
  box-shadow:var(--scyan),inset 0 0 50px rgba(0,229,255,0.1);
  display:flex;align-items:center;justify-content:center;
  position:relative;overflow:hidden;
  animation:logoPulse 2.5s ease-in-out infinite;
}
.logo-icon::after{content:'';position:absolute;inset:-60%;background:conic-gradient(transparent 270deg,rgba(0,229,255,0.4) 360deg);animation:logoSpin 3s linear infinite;}
@keyframes logoSpin{to{transform:rotate(360deg);}}
@keyframes logoPulse{0%,100%{box-shadow:var(--scyan),inset 0 0 40px rgba(0,229,255,0.08);}50%{box-shadow:0 0 60px rgba(0,229,255,1),inset 0 0 80px rgba(0,229,255,0.25);}}
.logo-icon img{position:relative;z-index:2;width:100%;height:100%;border-radius:26px;}

.logo-title{font-family:var(--fhud);font-size:clamp(28px,6vw,52px);font-weight:900;letter-spacing:4px;text-transform:uppercase;background:linear-gradient(135deg,var(--cyan),#fff 50%,var(--gold));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;filter:drop-shadow(0 0 25px rgba(0,229,255,0.6));}
.logo-subtitle{font-family:var(--flbl);font-size:16px;letter-spacing:8px;color:var(--textS);text-transform:uppercase;margin-top:-5px;}

.loading-bar-wrap{margin-top:60px;width:320px;}
.loading-label{font-family:var(--fhud);font-size:10px;letter-spacing:4px;color:var(--textS);margin-bottom:12px;text-transform:uppercase;text-align:center;}
.loading-bar-track{width:100%;height:6px;background:rgba(0,229,255,0.1);border-radius:3px;border:1px solid rgba(0,229,255,0.25);}
.loading-bar-fill{height:100%;background:linear-gradient(90deg,var(--cyan),var(--gold));border-radius:3px;width:0%;transition:width .1s linear;box-shadow:0 0 15px var(--cyan);}

/* ══════════════════════════════════════════════════════════
   MAIN MENU
══════════════════════════════════════════════════════════ */
#screen-menu{flex-direction:column;background:var(--bg);}
.menu-container{position:relative;z-index:10;display:flex;flex-direction:column;align-items:center;gap:15px;padding:44px 20px;width:100%;max-width:540px;}
.menu-header{text-align:center;margin-bottom:28px;position:relative;}
.menu-logo-wrap{position:relative;display:inline-block;margin-bottom:15px;animation:logoPulse 3s ease-in-out infinite;}
@keyframes logoPulse{0%,100%{transform:scale(1);filter:drop-shadow(0 0 15px rgba(0,229,255,0.4))}50%{transform:scale(1.05);filter:drop-shadow(0 0 35px rgba(0,229,255,0.8))}}
.menu-logo{width:120px;height:120px;border-radius:28px;border:2px solid var(--bcyan);background:rgba(0,0,0,0.4);backdrop-filter:blur(10px);}
.menu-title{font-family:var(--fhud);font-size:clamp(24px,6.5vw,54px);font-weight:900;letter-spacing:4px;text-transform:uppercase;background:linear-gradient(135deg,var(--cyan),#fff 50%,var(--gold));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.0;margin-top:10px;}
.menu-tagline{font-family:var(--flbl);font-size:16px;letter-spacing:10px;color:var(--textS);text-transform:uppercase;margin-top:12px;opacity:0.8;}
.menu-stats-row{display:flex;gap:16px;width:100%;margin-bottom:10px;}
.menu-stat-card{flex:1;background:var(--card);border:1px solid var(--bcard);border-radius:var(--r2);padding:20px;text-align:center;box-shadow: 0 10px 30px rgba(0,0,0,0.4);border-bottom: 2px solid var(--bcyan);}
.menu-stat-val{font-family:var(--fhud);font-size:28px;color:var(--gold);text-shadow:0 0 15px rgba(255,215,0,0.4);}
.menu-stat-lbl{font-family:var(--flbl);font-size:11px;color:var(--textS);letter-spacing:3px;text-transform:uppercase;margin-top:5px;}
.btn-menu{width:100%;padding:18px 25px;border:none;border-radius:var(--r2);font-family:var(--fhud);font-size:14px;font-weight:700;letter-spacing:4px;text-transform:uppercase;cursor:pointer;transition:var(--ease);position:relative;overflow:hidden;}
.btn-menu-primary{background:linear-gradient(135deg,#005bb5,#002a70);color:#fff;border:1px solid var(--cyan);box-shadow:var(--scyan),inset 0 1px 0 rgba(255,255,255,0.15);}
.btn-menu-primary:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 0 50px rgba(0,229,255,0.8),inset 0 1px 0 rgba(255,255,255,0.25);}
.btn-menu-secondary{background:rgba(11,28,48,0.92);color:var(--textP);border:1px solid var(--bcard);backdrop-filter:blur(5px);}
.btn-menu-secondary:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-3px) scale(1.02);box-shadow:var(--scyan);}

/* ══════════════════════════════════════════════════════════
   TUTORIAL
══════════════════════════════════════════════════════════ */
#screen-tutorial{background:rgba(3,10,20,0.97);z-index:150;padding:18px;}
.tutorial-box{background:var(--card);border:1px solid var(--bcyan);border-radius:var(--r3);max-width:640px;width:100%;overflow:hidden;box-shadow:var(--scyan),0 40px 80px rgba(0,0,0,0.5);animation:slideUp .4s cubic-bezier(.4,0,.2,1);}
@keyframes slideUp{from{opacity:0;transform:translateY(40px) scale(0.96);}to{opacity:1;transform:translateY(0) scale(1);}}
.tutorial-header{background:linear-gradient(135deg,#001530,#002a60);padding:22px 28px;display:flex;align-items:center;gap:14px;border-bottom:1px solid var(--bcard);}
.tutorial-title{font-family:var(--fhud);font-size:17px;font-weight:700;color:var(--cyan);letter-spacing:2px;}
.tutorial-step-indicator{display:flex;gap:7px;margin-left:auto;}
.tutorial-dot{width:8px;height:8px;border-radius:50%;background:var(--textD);transition:var(--ease);}
.tutorial-dot.active{background:var(--cyan);box-shadow:0 0 6px var(--cyan);}
.tutorial-dot.done{background:var(--green);}
.tutorial-body{padding:28px;}
.tutorial-slide{display:none;}
.tutorial-slide.active{display:block;animation:fadeSlide .4s ease;}
@keyframes fadeSlide{from{opacity:0;transform:translateX(18px);}to{opacity:1;transform:translateX(0);}}
.tutorial-card{background:rgba(0,229,255,0.04);border:1px solid var(--bcard);border-radius:var(--r2);padding:18px;margin-bottom:14px;display:flex;align-items:flex-start;gap:14px;}
.tutorial-icon{width:46px;height:46px;flex-shrink:0;border-radius:11px;display:flex;align-items:center;justify-content:center;font-size:20px;}
.tutorial-icon.red   {background:rgba(239,68,68,0.15);border:1px solid rgba(239,68,68,0.3);}
.tutorial-icon.cyan  {background:rgba(0,229,255,0.12);border:1px solid rgba(0,229,255,0.25);}
.tutorial-icon.gold  {background:rgba(255,215,0,0.12); border:1px solid rgba(255,215,0,0.25);}
.tutorial-icon.green {background:rgba(34,197,94,0.12); border:1px solid rgba(34,197,94,0.25);}
.tutorial-icon.orange{background:rgba(255,107,43,0.12);border:1px solid rgba(255,107,43,0.25);}
.tutorial-card-content h4{font-family:var(--flbl);font-size:14px;font-weight:700;color:var(--textP);letter-spacing:1px;margin-bottom:5px;}
.tutorial-card-content p{font-size:12px;color:var(--textS);line-height:1.65;}
.tutorial-footer{padding:18px 28px;border-top:1px solid var(--bcard);display:flex;justify-content:space-between;align-items:center;}
.btn-tut{padding:11px 26px;border-radius:var(--r1);font-family:var(--fhud);font-size:10px;font-weight:700;letter-spacing:2px;text-transform:uppercase;cursor:pointer;transition:var(--ease);border:none;}
.btn-tut-skip{background:transparent;color:var(--textS);border:1px solid var(--textD);}
.btn-tut-skip:hover{color:var(--textP);border-color:var(--textS);}
.btn-tut-next{background:linear-gradient(135deg,var(--cyan),#0044bb);color:#000;}
.btn-tut-next:hover{transform:translateX(3px);box-shadow:var(--scyan);}
.btn-tut-start{background:linear-gradient(135deg,var(--green),#15803d);color:#000;font-weight:800;}
.btn-tut-start:hover{transform:scale(1.03);box-shadow:var(--sgreen);}

/* ══════════════════════════════════════════════════════════
   LEVEL SELECT
══════════════════════════════════════════════════════════ */
#screen-levels{background:var(--bg);flex-direction:column;overflow-y:auto;align-items:center;padding:18px;}
.levels-container{position:relative;z-index:10;width:100%;max-width:820px;padding-bottom:40px;}
.levels-header{display:flex;align-items:center;gap:14px;margin-bottom:28px;padding-top:18px;}
.btn-back{width:40px;height:40px;border-radius:50%;background:var(--card);border:1px solid var(--bcard);color:var(--textP);font-size:17px;cursor:pointer;transition:var(--ease);display:flex;align-items:center;justify-content:center;}
.btn-back:hover{border-color:var(--cyan);color:var(--cyan);box-shadow:var(--scyan);}
.levels-title{font-family:var(--fhud);font-size:20px;font-weight:700;letter-spacing:3px;text-transform:uppercase;color:var(--cyan);}
.levels-zone{margin-bottom:28px;}
.zone-header{display:flex;align-items:center;gap:11px;margin-bottom:14px;padding:9px 14px;background:linear-gradient(90deg,rgba(0,229,255,0.08),transparent);border-left:3px solid var(--cyan);border-radius:0 var(--r1) var(--r1) 0;}
.zone-title{font-family:var(--flbl);font-size:13px;font-weight:700;letter-spacing:3px;text-transform:uppercase;}
.zone-badge{font-family:var(--fhud);font-size:9px;padding:3px 9px;border-radius:20px;letter-spacing:1px;text-transform:uppercase;font-weight:700;}
.zone-badge.easy  {background:rgba(34,197,94,0.18);color:var(--green); border:1px solid rgba(34,197,94,0.3);}
.zone-badge.medium{background:rgba(255,215,0,0.18);color:var(--gold);  border:1px solid rgba(255,215,0,0.3);}
.zone-badge.hard  {background:rgba(255,107,43,0.18);color:var(--orange);border:1px solid rgba(255,107,43,0.3);}
.zone-badge.expert{background:rgba(239,68,68,0.18);color:var(--red);   border:1px solid rgba(239,68,68,0.3);}
.zone-badge.master{background:rgba(168,85,247,0.18);color:var(--purple);border:1px solid rgba(168,85,247,0.3);}
.levels-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(135px,1fr));gap:11px;}
.level-card{background:var(--card);border:1px solid var(--bcard);border-radius:var(--r2);padding:15px 10px;text-align:center;cursor:pointer;transition:var(--ease);position:relative;overflow:hidden;}
.level-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--cyan),transparent);opacity:0;transition:var(--ease);}
.level-card:hover::before{opacity:1;}
.level-card:hover{border-color:var(--cyan);transform:translateY(-3px);box-shadow:var(--scyan);}
.level-card.locked{opacity:0.38;cursor:not-allowed;pointer-events:none;}
.level-card.completed{border-color:rgba(34,197,94,0.4);}
.level-card.completed::before{background:linear-gradient(90deg,transparent,var(--green),transparent);opacity:1;}
.level-number{font-family:var(--fhud);font-size:26px;font-weight:800;color:var(--textP);line-height:1;}
.level-name{font-family:var(--flbl);font-size:10px;color:var(--textS);letter-spacing:1px;margin-top:4px;text-transform:uppercase;}
.level-stars{display:flex;justify-content:center;gap:3px;margin-top:7px;font-size:13px;}
.level-lock-icon{font-size:20px;color:var(--textD);margin-bottom:4px;}

/* ══════════════════════════════════════════════════════════
   GAME SCREEN
══════════════════════════════════════════════════════════ */
#screen-game{flex-direction:column;background:var(--bg);gap:0;align-items:stretch;}

.hud-top{position:relative;z-index:20;display:flex;align-items:center;gap:20px;padding:12px 28px;background:linear-gradient(180deg,rgba(3,10,20,1),rgba(3,10,20,.85));border-bottom:1px solid var(--bcard);flex-shrink:0;backdrop-filter:blur(15px);height:90px;}
.hud-divider{width:2px;height:44px;background:var(--bcard);opacity:0.6;}
.hud-spacer{flex:1;}
.hud-level-badge{background:linear-gradient(135deg,#001530,#002d60);border:1px solid var(--cyan);border-radius:var(--r2);padding:10px 22px;box-shadow:var(--scyan);}
.hud-level-num{font-family:var(--fhud);font-size:24px;font-weight:800;color:var(--cyan);line-height:1;}
.hud-score-val{font-family:var(--fhud);font-size:26px;font-weight:800;color:var(--gold);line-height:1;text-shadow:0 0 15px rgba(255,215,0,0.5);}
.hud-timer-val{font-family:var(--fhud);font-size:26px;font-weight:700;color:var(--textP);line-height:1;letter-spacing:1px;}
.hud-train-icon{font-size:28px;}
.hud-trains-count{font-family:var(--fhud);font-size:22px;font-weight:700;color:var(--textP);line-height:1;}
.hud-combo-val{font-family:var(--fhud);font-size:22px;font-weight:800;color:var(--gold);line-height:1;}
.btn-hud{width:48px;height:48px;border-radius:50%;background:rgba(11,28,48,.92);border:1px solid var(--bcard);color:var(--textS);font-size:21px;cursor:pointer;transition:var(--ease);display:flex;align-items:center;justify-content:center;backdrop-filter:blur(5px);}
.btn-hud:hover{border-color:var(--cyan);color:var(--cyan);box-shadow:var(--scyan);transform:scale(1.08);}

/* Canvas */
.game-canvas-wrap{flex:1;position:relative;overflow:hidden;}
#gameCanvas{display:block;width:100%;height:100%;cursor:pointer;}
.canvas-grid-overlay{position:absolute;inset:0;background-image:linear-gradient(rgba(0,229,255,.012) 1px,transparent 1px),linear-gradient(90deg,rgba(0,229,255,.012) 1px,transparent 1px);background-size:60px 60px;pointer-events:none;}

/* Control Panel */
.control-panel{position:relative;z-index:20;background:linear-gradient(0deg,rgba(3,10,20,1),rgba(3,10,20,.82));border-top:2px solid var(--bcard);backdrop-filter:blur(15px);flex-shrink:0;}
.control-panel-tabs{display:flex;border-bottom:1px solid var(--bcard);background: rgba(0,0,0,0.2);}
.ctrl-tab{flex:1;padding:12px;background:transparent;border:none;color:var(--textD);font-family:var(--fhud);font-size:10px;letter-spacing:3px;text-transform:uppercase;cursor:pointer;transition:var(--ease);border-bottom:3px solid transparent;margin-bottom:-1px;}
.ctrl-tab:hover{color:var(--textS);}
.ctrl-tab.active{color:var(--cyan);border-bottom-color:var(--cyan);text-shadow:var(--scyan);}
.control-panel-body{padding:14px 28px;display:flex;align-items:center;gap:22px;min-height:100px;}

/* Signal controls */
.signal-controls{display:flex;gap:12px;flex-wrap:wrap;flex:1;}
.btn-emergency{padding:13px 28px;border-radius:var(--r2);background:linear-gradient(135deg,rgba(239,68,68,.35),rgba(239,68,68,.18));border:1px solid var(--red);color:var(--red);font-family:var(--fhud);font-size:11px;font-weight:700;letter-spacing:3px;text-transform:uppercase;cursor:pointer;transition:var(--ease);text-align:center;line-height:1.5;box-shadow: 0 4px 15px rgba(239,68,68,0.2);}
.btn-emergency:hover{background:linear-gradient(135deg,rgba(239,68,68,.6),rgba(239,68,68,.3));box-shadow:var(--sred);transform:translateY(-2px) scale(1.05);}
.btn-emergency:active{transform:scale(.98);}

/* Speed */
.speed-slider-wrap{flex:1;display:flex;flex-direction:column;gap:5px;}
.speed-slider-label{font-family:var(--fhud);font-size:9px;letter-spacing:2px;color:var(--textS);text-transform:uppercase;display:flex;justify-content:space-between;}
.speed-val{color:var(--cyan);}
input[type=range].speed-slider{width:100%;-webkit-appearance:none;height:4px;border-radius:2px;background:linear-gradient(90deg,var(--cyan) var(--pct,50%),rgba(0,229,255,.14) var(--pct,50%));outline:none;cursor:pointer;}
input[type=range].speed-slider::-webkit-slider-thumb{-webkit-appearance:none;width:15px;height:15px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan);cursor:pointer;}

/* Train list */
.train-list{display:flex;gap:7px;flex:1;overflow-x:auto;padding-bottom:2px;}
.train-list::-webkit-scrollbar{height:2px;}
.train-indicator{display:flex;flex-direction:column;align-items:center;gap:3px;padding:7px 10px;border-radius:var(--r1);background:var(--card);border:1px solid var(--bcard);cursor:pointer;transition:var(--ease);min-width:68px;flex-shrink:0;}
.train-indicator:hover{border-color:var(--cyan);}
.train-indicator.selected{border-color:var(--cyan);background:rgba(0,229,255,.08);box-shadow:var(--scyan);}
.train-indicator.stopped{border-color:var(--red);background:rgba(239,68,68,.08);}
.train-indicator.danger{border-color:var(--orange);animation:dangerBlink .5s ease-in-out infinite;}
@keyframes dangerBlink{0%,100%{border-color:var(--orange);box-shadow:none;}50%{border-color:var(--red);box-shadow:0 0 12px var(--red);}}
.train-ind-name{font-family:var(--fhud);font-size:10px;font-weight:700;letter-spacing:1px;}
.train-ind-speed{font-family:var(--flbl);font-size:11px;color:var(--textS);}
.train-ind-status{font-size:15px;}
.status-dot{width:7px;height:7px;border-radius:50%;display:inline-block;}
.status-dot.running{background:var(--green);box-shadow:0 0 5px var(--green);}
.status-dot.stopped{background:var(--red);box-shadow:0 0 5px var(--red);}
.status-dot.warning{background:var(--orange);animation:dotBlink .4s ease infinite;}
@keyframes dotBlink{0%,100%{opacity:1}50%{opacity:.3}}

/* ══════════════════════════════════════════════════════════
   NOTIFICATIONS
══════════════════════════════════════════════════════════ */
#notifications{position:fixed;top:88px;right:14px;z-index:500;display:flex;flex-direction:column;gap:7px;pointer-events:none;}
.notification{background:var(--card);border-radius:var(--r1);padding:9px 14px;border-left:3px solid var(--cyan);font-family:var(--flbl);font-size:13px;color:var(--textP);box-shadow:0 4px 20px rgba(0,0,0,.4);animation:notifIn .3s ease, notifOut .3s ease 2.8s forwards;max-width:255px;}
.notification.success{border-left-color:var(--green);}
.notification.warning{border-left-color:var(--orange);}
.notification.danger{border-left-color:var(--red);}
@keyframes notifIn{from{opacity:0;transform:translateX(28px);}to{opacity:1;transform:translateX(0);}}
@keyframes notifOut{from{opacity:1;}to{opacity:0;}}

/* Score pop */
.score-pop{position:fixed;z-index:99;font-family:var(--fhud);font-size:20px;font-weight:900;color:var(--gold);text-shadow:0 0 15px rgba(255,215,0,0.8);pointer-events:none;animation:popOut 1.3s cubic-bezier(0.19, 1, 0.22, 1) forwards;}
@keyframes popOut{0%{transform:scale(0.5) translateY(0);opacity:0}20%{transform:scale(1.2) translateY(-20px);opacity:1}100%{transform:scale(1) translateY(-100px);opacity:0}}

/* Incoming Train Alert (Grand Scale) */
.incoming-alert{position:absolute;z-index:15;background:linear-gradient(135deg,rgba(255,215,0,0.9),rgba(255,107,43,0.9));color:#000;font-family:var(--fhud);font-size:12px;font-weight:800;padding:6px 14px;border-radius:4px;letter-spacing:2px;pointer-events:none;box-shadow:0 0 30px rgba(255,160,0,0.7);animation:blinkAlert 0.4s ease-in-out infinite alternate;text-transform:uppercase;white-space:nowrap;}
@keyframes blinkAlert{from{opacity:0.7;transform:scale(0.92)}to{opacity:1;transform:scale(1.08)}}
.incoming-indicator{position:absolute;z-index:14;width:60px;height:60px;border:4px solid var(--gold);border-radius:50%;animation:pingRadius 1.2s ease-out infinite;pointer-events:none;margin-left:-30px;margin-top:-30px;}
@keyframes pingRadius{0%{transform:scale(0.2);opacity:1}100%{transform:scale(2.5);opacity:0}}

/* ══════════════════════════════════════════════════════════
   PAUSE OVERLAY
══════════════════════════════════════════════════════════ */
#overlay-pause{position:fixed;inset:0;background:rgba(3,10,20,.93);z-index:400;display:none;align-items:center;justify-content:center;backdrop-filter:blur(9px);}
#overlay-pause.visible{display:flex;}
.pause-box{background:var(--card);border:1px solid var(--bcyan);border-radius:var(--r3);padding:44px;text-align:center;box-shadow:var(--scyan),0 40px 80px rgba(0,0,0,.6);min-width:300px;animation:slideUp .3s ease;}
.pause-title{font-family:var(--fhud);font-size:26px;font-weight:900;letter-spacing:4px;color:var(--cyan);margin-bottom:6px;}
.pause-subtitle{font-family:var(--flbl);font-size:12px;color:var(--textS);letter-spacing:2px;margin-bottom:28px;}
.pause-buttons{display:flex;flex-direction:column;gap:11px;}
.btn-pause{padding:13px 22px;border-radius:var(--r1);font-family:var(--fhud);font-size:11px;font-weight:700;letter-spacing:2px;text-transform:uppercase;cursor:pointer;transition:var(--ease);border:none;}
.btn-pause-resume{background:linear-gradient(135deg,var(--cyan),#003399);color:#fff;}
.btn-pause-resume:hover{transform:scale(1.02);box-shadow:var(--scyan);}
.btn-pause-menu{background:transparent;color:var(--textS);border:1px solid var(--bcard);}
.btn-pause-menu:hover{color:var(--textP);border-color:var(--textS);}

/* ══════════════════════════════════════════════════════════
   COLLISION FLASH
══════════════════════════════════════════════════════════ */
#collision-flash{position:fixed;inset:0;background:radial-gradient(ellipse at center,rgba(239,68,68,.85) 0%,transparent 70%);z-index:250;pointer-events:none;opacity:0;}
#collision-flash.flashing{animation:flashAnim .45s ease forwards;}
@keyframes flashAnim{0%{opacity:1;}100%{opacity:0;}}

/* ══════════════════════════════════════════════════════════
   SCORE POP
══════════════════════════════════════════════════════════ */
.score-pop{position:fixed;font-family:var(--fhud);font-size:17px;font-weight:800;color:var(--gold);pointer-events:none;z-index:600;text-shadow:0 0 10px rgba(255,215,0,.9);animation:scorePop 1.25s ease forwards;}
@keyframes scorePop{0%{opacity:1;transform:translateY(0) scale(1);}100%{opacity:0;transform:translateY(-55px) scale(1.35);}}

/* ══════════════════════════════════════════════════════════
   RESULT SCREENS
══════════════════════════════════════════════════════════ */
#screen-gameover,#screen-levelcomplete{background:rgba(3,10,20,.96);z-index:300;backdrop-filter:blur(14px);}
.result-box{text-align:center;padding:0 18px;animation:resultBounce .5s cubic-bezier(.34,1.56,.64,1);max-width:470px;width:100%;}
@keyframes resultBounce{from{opacity:0;transform:scale(0.7);}to{opacity:1;transform:scale(1);}}
.result-icon{font-size:68px;margin-bottom:14px;animation:resultFloat 2s ease-in-out infinite;}
@keyframes resultFloat{0%,100%{transform:translateY(0);}50%{transform:translateY(-8px);}}
.result-title{font-family:var(--fhud);font-size:clamp(26px,6vw,46px);font-weight:900;letter-spacing:4px;text-transform:uppercase;margin-bottom:7px;}
.result-title.gameover{color:var(--red);text-shadow:0 0 28px rgba(239,68,68,.7);}
.result-title.complete{color:var(--green);text-shadow:0 0 28px rgba(34,197,94,.7);}
.result-message{font-family:var(--flbl);font-size:13px;color:var(--textS);letter-spacing:2px;text-transform:uppercase;margin-bottom:28px;}
.result-stats{display:flex;gap:18px;justify-content:center;margin-bottom:28px;flex-wrap:wrap;}
.result-stat{background:var(--card);border:1px solid var(--bcard);border-radius:var(--r2);padding:14px 22px;min-width:105px;}
.result-stat-val{font-family:var(--fhud);font-size:22px;font-weight:800;color:var(--gold);}
.result-stat-lbl{font-family:var(--flbl);font-size:10px;color:var(--textS);letter-spacing:2px;text-transform:uppercase;margin-top:3px;}
.result-stars{display:flex;justify-content:center;gap:11px;margin-bottom:28px;font-size:38px;}
.result-star{animation:starPop .4s cubic-bezier(.34,1.56,.64,1) both;filter:drop-shadow(0 0 8px gold);}
.result-star:nth-child(1){animation-delay:.3s;}.result-star:nth-child(2){animation-delay:.5s;}.result-star:nth-child(3){animation-delay:.7s;}
.result-star.empty{filter:grayscale(1) opacity(.3);}
@keyframes starPop{from{opacity:0;transform:scale(0) rotate(-30deg);}to{opacity:1;transform:scale(1) rotate(0);}}
.result-buttons{display:flex;gap:11px;justify-content:center;flex-wrap:wrap;}
.btn-result{padding:13px 26px;border-radius:var(--r2);font-family:var(--fhud);font-size:10px;font-weight:700;letter-spacing:2px;text-transform:uppercase;cursor:pointer;transition:var(--ease);border:none;}
.btn-result-retry{background:linear-gradient(135deg,var(--orange),#991111);color:#fff;}
.btn-result-retry:hover{transform:scale(1.03);}
.btn-result-next{background:linear-gradient(135deg,var(--green),#166534);color:#000;font-weight:800;}
.btn-result-next:hover{transform:scale(1.03);box-shadow:var(--sgreen);}
.btn-result-menu{background:transparent;border:1px solid var(--bcard);color:var(--textS);}
.btn-result-menu:hover{color:var(--textP);border-color:var(--textS);}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════════ */
@media(max-width:400px){.hud-trains-wrap{display:none;}}

/* 📱 MOBILE RESPONSIVE OVERHAUL (Landscape & Portrait) ────────────────── */

/* 1. Portrait Optimization */
@media (max-width: 500px) {
  .menu-logo{width:100px;height:100px;}
  .menu-title{font-size:32px;letter-spacing:2px;}
  .menu-tagline{font-size:12px;letter-spacing:5px;}
  .menu-container{padding:28px 15px;}
  .hud-top{padding:8px 14px;height:75px;gap:12px;}
  .hud-level-badge{padding:6px 12px;}
  .hud-score-val,.hud-timer-val{font-size:20px;}
  .btn-hud{width:40px;height:40px;font-size:18px;}
  .tutorial-box,.pause-box{width:94%;margin:0 3%;padding:25px 15px;}
}

/* 2. Landscape Optimization (Compact UI) */
@media (max-height: 520px) and (orientation: landscape) {
  .hud-top{height:55px;padding:5px 20px;gap:15px;}
  .hud-divider{height:25px;}
  .hud-level-badge{padding:4px 12px;transform:scale(0.9);}
  .hud-level-num{font-size:16px;}
  .hud-score-val,.hud-timer-val{font-size:18px;}
  .hud-train-icon{font-size:22px;}
  .hud-trains-count{font-size:16px;}
  .btn-hud{width:36px;height:36px;font-size:16px;}
  
  .control-panel-tabs{height:34px;}
  .ctrl-tab{padding:8px;font-size:8px;letter-spacing:1px;}
  .control-panel-body{min-height:70px;padding:8px 20px;gap:15px;}
  .signal-controls{gap:8px;}
  .btn-emergency{padding:8px 15px;font-size:9px;letter-spacing:1px;}
  .speed-slider-wrap{gap:2px;}
  .train-indicator{padding:4px 8px;min-width:60px;}
  .train-ind-status{font-size:12px;}
  .train-ind-name{font-size:9px;}
}

/* ══════════════════════════════════════════════════════════
   JOR DAR BRANDING ADD-ONS
   ══════════════════════════════════════════════════════════ */
.menu-header{text-align:center;margin-bottom:28px;position:relative;}
.menu-logo-wrap{position:relative;display:inline-block;margin-bottom:15px;animation:logoPulse 3s ease-in-out infinite;}
@keyframes logoPulse{0%,100%{transform:scale(1);filter:drop-shadow(0 0 15px rgba(0,229,255,0.4))}50%{transform:scale(1.05);filter:drop-shadow(0 0 35px rgba(0,229,255,0.8))}}
.menu-logo{width:140px;height:140px;border-radius:32px;border:2px solid var(--bcyan);background:rgba(0,0,0,0.4);backdrop-filter:blur(10px);box-shadow:0 15px 45px rgba(0,0,0,0.6);}
.menu-title{font-family:var(--fhud);font-size:clamp(24px,6.5vw,54px);font-weight:900;letter-spacing:4px;text-transform:uppercase;background:linear-gradient(135deg,var(--cyan),#fff 50%,var(--gold));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.0;margin-top:10px;}
.menu-tagline{font-family:var(--flbl);font-size:16px;letter-spacing:10px;color:var(--textS);text-transform:uppercase;margin-top:12px;opacity:0.8;}
.background-thumbnail{position:absolute;inset:0;background:url('../assets/icons/thumbnail.svg') center/cover no-repeat;opacity:0.25;filter:blur(3px) saturate(0.6);z-index:-1;animation:bgSway 40s ease-in-out infinite;}
@keyframes bgSway{0%,100%{transform:scale(1.0) rotate(0deg);}50%{transform:scale(1.1) rotate(1deg);}}
.scanlines{position:fixed;inset:0;background:linear-gradient(rgba(18,16,16,0) 50%,rgba(0,0,0,0.08) 50%),linear-gradient(90deg,rgba(255,0,0,0.02),rgba(0,255,80,0.01),rgba(0,0,255,0.02));background-size:100% 3px,15px 100%;z-index:999;pointer-events:none;opacity:0.22;}