/* Terminal Quest, AI Vision edition — a sibling of Operation Nightjar and Permission Quest.
   Opening: a light page in the site's colours with a small green terminal playing the first levels.
   Game room: Nightjar's frosted top bar with one round marker per level, the brief on a glass
   panel, and the shell on a dark CRT (scanlines, glow, phosphor colours, power, channel switch).
   Closing: the near-black night with one crimson accent.
   Inter for reading, JetBrains Mono for the terminal; both bundled in fonts/ so the game works offline.
   Base rules describe each settled state; animations only add motion. */
:root{
  --bg:#eef0f2;--ink:#0d0d0f;--ink-soft:#2b2d31;--muted:#55585e;--muted-2:#767a81;
  --line:rgba(5,5,5,.1);--line-strong:rgba(5,5,5,.2);
  --accent:#e2231a;--accent-hover:#b8160f;--accent-soft:#fdeceb;--accent-ring:rgba(226,35,26,.16);--accent-dark:#ff5d52;
  --good:#1f6b43;--good-soft:#e8f3ec;
  --glass:linear-gradient(145deg,rgba(255,255,255,.86),rgba(255,255,255,.6));
  --glass-border:rgba(255,255,255,.95);
  --glass-shadow:0 24px 60px rgba(18,22,30,.08),inset 0 1px 0 rgba(255,255,255,.95);
  --radius:22px;
  --ease:cubic-bezier(.22,.7,.25,1);
  --ui:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,"Cascadia Code",Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;min-height:100vh;background:radial-gradient(circle at 96% -8%,rgba(226,35,26,.14),rgba(226,35,26,0) 38%),radial-gradient(circle at -6% 108%,#fff,rgba(255,255,255,0) 46%),var(--bg);background-attachment:fixed;color:var(--ink);font:16px/1.5 var(--ui);font-feature-settings:"ss01","cv05","cv11";-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body[data-scene="outro"]{background:#050506}
button,a{-webkit-tap-highlight-color:transparent}
button{font:inherit;color:inherit;cursor:pointer}
a{color:inherit}
[hidden]{display:none!important}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0 0 0 0)!important;white-space:nowrap!important;border:0!important}
.icon{width:18px;height:18px;flex:none;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
/* A shell must show exactly what was typed: no programming ligatures (-- stays two dashes). */
code,kbd,pre,input,textarea,.terminal-panel,.terminal-panel *,.pi-term,.pi-term *{font-variant-ligatures:none!important;font-feature-settings:"liga" 0,"calt" 0!important}
.noscript{margin:40px;font-weight:700}

/* ---------- Shared pieces ---------- */
.panel-label{display:flex;align-items:center;gap:9px;margin:0;color:var(--accent);font:700 12px/1.2 var(--ui);letter-spacing:.14em;text-transform:uppercase}
.panel-label>i{width:8px;height:8px;flex:none;border-radius:2px;background:var(--accent)}
.brand{display:flex;align-items:center;gap:14px;flex:none;color:var(--ink);text-decoration:none}
.brand-logo{display:block;width:auto;height:26px}
.brand-wordmark{display:flex;flex-direction:column;gap:4px;padding-left:14px;border-left:1px solid var(--line-strong);font:800 17px/1 var(--ui);letter-spacing:-.03em}
.brand-wordmark small{color:var(--muted);font:600 12px/1 var(--ui);letter-spacing:.02em}
.topbar-tools{display:flex;align-items:center;justify-content:flex-end;gap:8px;flex:none}
.topbar-action{display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 15px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.82);color:var(--ink);font:600 13px/1 var(--ui);white-space:nowrap;box-shadow:0 1px 2px rgba(5,5,5,.04);transition:background .2s,border-color .2s,color .2s}
.topbar-action:hover{background:#fff;border-color:var(--line-strong)}
.topbar-action[aria-pressed="false"]{color:var(--muted)}
.sound-toggle[aria-pressed="true"] .sound-mute,.sound-toggle[aria-pressed="false"] .sound-wave{display:none}
.topbar-danger{color:var(--accent-hover);border-color:rgba(226,35,26,.24);background:rgba(253,236,235,.75)}
.topbar-danger:hover{background:var(--accent-soft);border-color:var(--accent)}
.primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;border:0;border-radius:999px;background:var(--ink);color:#fff;font:700 15px/1 var(--ui);text-decoration:none;white-space:nowrap;box-shadow:0 10px 24px rgba(5,5,5,.18);transition:background .2s,transform .2s var(--ease)}
.primary:hover{background:#000;transform:translateY(-1px)}
.primary.next{background:var(--accent);box-shadow:0 10px 24px rgba(226,35,26,.28)}
.primary.next:hover{background:var(--accent-hover)}
.primary.small{height:38px;padding:0 18px;font-size:14px}
.pill{display:inline-flex;align-items:center;justify-content:center;height:36px;padding:0 16px;border:1px solid var(--line-strong);border-radius:999px;background:#fff;color:var(--ink);font:600 13px/1 var(--ui);white-space:nowrap;transition:background .2s,border-color .2s,color .2s}
.pill:hover{border-color:var(--ink)}
.pill-danger{border-color:var(--accent);background:var(--accent);color:#fff}
.pill-danger:hover{border-color:var(--accent-hover);background:var(--accent-hover)}
.terminal-lights{display:flex;gap:7px}
.terminal-lights i{width:10px;height:10px;border-radius:50%;background:#3a3b40}
.terminal-lights i:first-child{background:var(--accent);box-shadow:0 0 8px rgba(226,35,26,.7)}

/* ---------- Opening: the game, playing itself ---------- */
.pi{position:relative;display:grid;grid-template-rows:64px minmax(0,1fr);grid-template-columns:minmax(0,1fr);min-height:100vh;min-height:100svh;overflow:hidden;color:var(--ink)}
.pi.is-leaving{animation:op-leave .6s ease forwards}
.pi-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 clamp(14px,1.8vw,26px);border-bottom:1px solid rgba(5,5,5,.07)}
.pi-stage{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.08fr);align-items:center;gap:clamp(24px,4vw,64px);width:100%;max-width:1180px;margin:0 auto;padding:clamp(18px,4vh,44px) clamp(16px,2.4vw,32px)}
.pi-copy>*{animation:pi-rise .7s var(--ease) both}
.pi-copy>:nth-child(2){animation-delay:.08s}
.pi-copy>:nth-child(3){animation-delay:.16s}
.pi-copy>:nth-child(4){animation-delay:.24s}
.pi-copy>:nth-child(5){animation-delay:.32s}
.pi-title{margin:14px 0 0;font:800 clamp(56px,7.4vw,108px)/.95 var(--ui);letter-spacing:-.055em;outline:none}
.pi-title .title-dot{display:inline-block;color:var(--accent);animation:pi-dot 1.4s cubic-bezier(.3,.7,.3,1) .5s both}
.pi-tagline{max-width:34ch;margin:18px 0 0;color:var(--ink-soft);font:500 clamp(17px,1.55vw,20px)/1.45 var(--ui)}
.pi-tagline b{color:var(--ink)}
.pi-steps{display:grid;gap:9px;margin:22px 0 0;padding:0;list-style:none}
.pi-steps li{display:flex;align-items:center;gap:12px;color:var(--ink);font:600 15px/1.3 var(--ui)}
.pi-steps b{display:grid;place-items:center;width:28px;height:28px;flex:none;border-radius:50%;background:var(--ink);color:#fff;font:700 13px/1 var(--mono)}
.pi-steps li:nth-child(2) b{background:var(--accent)}
.pi-actions{display:flex;align-items:center;flex-wrap:wrap;gap:12px 18px;margin-top:26px}
.pi-start{position:relative;overflow:hidden;display:inline-flex;align-items:center;gap:16px;height:56px;padding:0 20px 0 28px;border:0;border-radius:999px;background:var(--ink);color:#fff;font:800 15px/1 var(--ui);letter-spacing:.08em;text-transform:uppercase;box-shadow:0 14px 34px rgba(5,5,5,.22),0 0 0 6px rgba(5,5,5,.05);transition:transform .25s var(--ease),box-shadow .25s}
.pi-start:hover{transform:translateY(-2px);box-shadow:0 18px 40px rgba(5,5,5,.26),0 0 0 6px var(--accent-ring)}
.pi-start:after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(255,255,255,0) 35%,rgba(255,255,255,.18) 50%,rgba(255,255,255,0) 65%);transform:translateX(-130%);animation:op-sheen 5s ease 2s infinite}
.pi-start kbd{padding:4px 8px 3px;border:1px solid rgba(255,255,255,.35);border-bottom-width:2px;border-radius:6px;font:600 11px/1 var(--mono);letter-spacing:.04em;text-transform:none;opacity:.85}
.pi-note{max-width:26ch;color:var(--muted);font:500 13px/1.35 var(--ui)}
.pi-author{display:flex;flex-direction:column;align-items:flex-end;gap:4px;margin-right:6px;padding-right:16px;border-right:1px solid var(--line-strong);text-align:right}
.pi-author-en{color:var(--muted);font:500 13px/1.2 var(--ui);white-space:nowrap}
.pi-author-en strong{color:var(--ink);font-weight:700}
.pi-author-en i{font-style:normal}
.pi-author-en a{color:var(--accent-hover);font-weight:700;text-decoration:none}
.pi-author-en a:hover{text-decoration:underline}
.pi-author-title{color:var(--muted);font:500 12px/1.3 var(--ui);white-space:nowrap}
/* The little CRT: a bezel, a green screen, scanlines and a green power light. */
.pi-crt{--phos:#86ffa6;--phos-hi:#d9ffe3;--phos-soft:rgba(134,255,166,.66);--phos-dim:rgba(134,255,166,.42);--phos-faint:rgba(134,255,166,.16);--phos-glow:rgba(90,255,140,.32);--dir:#6ab4ff;position:relative;min-width:0;padding:14px 14px 22px;border-radius:30px;background:linear-gradient(160deg,#2c2d32,#121215 62%);box-shadow:0 30px 70px rgba(18,22,30,.28),inset 0 1px 0 rgba(255,255,255,.12),inset 0 -2px 0 rgba(0,0,0,.5);animation:pi-rise .8s var(--ease) .1s both}
.pi-crt:before{content:"";position:absolute;right:28px;bottom:8px;width:6px;height:6px;border-radius:50%;background:#86ffa6;box-shadow:0 0 8px #86ffa6}
.pi-screen{position:relative;overflow:hidden;display:flex;flex-direction:column;min-height:392px;padding:0 18px 14px;border-radius:20px;background:radial-gradient(ellipse at 50% 40%,#06170c,#020a05 72%);color:var(--phos);text-shadow:-.6px 0 rgba(255,45,85,.3),.6px 0 rgba(70,170,255,.3),0 0 8px var(--phos-glow);animation:tv-on 1s cubic-bezier(.2,.7,.2,1) .35s both}
.pi-screen:before{content:"";position:absolute;inset:0;z-index:4;pointer-events:none;background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,0) 26%),radial-gradient(ellipse 120% 110% at 50% 50%,rgba(0,0,0,0) 62%,rgba(0,0,0,.5) 100%),repeating-linear-gradient(0deg,rgba(0,0,0,.3) 0 1px,rgba(0,0,0,0) 1px 3px);box-shadow:inset 0 0 70px rgba(0,0,0,.65)}
.pi-screen:after{content:"";position:absolute;left:0;right:0;top:0;height:100%;z-index:4;pointer-events:none;background:linear-gradient(180deg,rgba(255,255,255,0) 42%,rgba(255,255,255,.035) 50%,rgba(255,255,255,0) 58%);animation:crt-refresh 7s linear infinite}
.pi-screen.retune .pi-term{animation:channel-roll .7s cubic-bezier(.3,.7,.2,1)}
.pi-mast{display:flex;align-items:center;gap:14px;height:38px;margin:0 -18px;padding:0 16px;border-bottom:1px solid var(--phos-faint);color:var(--phos-dim);font:500 12px/1 var(--mono)}
.pi-ch{margin-left:auto;color:var(--phos-soft);font-weight:700;letter-spacing:.06em}
.pi-term{flex:1;min-height:0;overflow:hidden;display:flex;flex-direction:column;justify-content:flex-end;padding:12px 0 6px;font:500 14px/1.6 var(--mono)}
.pi-line{min-height:1.6em;white-space:pre-wrap;overflow-wrap:anywhere}
.pi-line .u{color:var(--phos-hi);font-weight:700}
.pi-line .p{color:var(--dir);font-weight:700}
.pi-line .dim{color:var(--phos-dim)}
.pi-line .dir{color:var(--dir);font-weight:700}
.pi-line .flag{color:#fff;font-weight:700;border-bottom:2px solid var(--accent-dark);text-shadow:0 0 12px rgba(255,255,255,.55)}
.pi-line.ok{margin:4px 0;padding:4px 10px;border-left:2px solid var(--accent-dark);background:linear-gradient(90deg,var(--phos-faint),rgba(0,0,0,0) 85%);color:#fff;font-family:var(--ui);font-weight:600}
.pi-line.ok:before{content:"◆ ";color:var(--accent-dark)}
.pi-caret{display:inline-block;width:.6em;height:1.05em;margin-left:1px;vertical-align:-.15em;background:var(--phos);animation:caret-blink 1.1s steps(1) infinite}
.pi-say{min-height:2.9em;margin:0;padding-top:10px;border-top:1px solid var(--phos-faint);color:var(--phos-soft);font:500 14px/1.45 var(--ui)}
.pi-say b{color:var(--phos);font:700 14px/1 var(--mono)}
.pi-say strong{color:var(--phos-hi)}
.pi-say.is-new{animation:pi-say .45s ease}

/* ---------- Closing: the night ---------- */
.op{--op-cream:#f4f4f2;--op-red:#e2231a;position:relative;display:grid;grid-template-rows:64px minmax(0,1fr);grid-template-columns:minmax(0,1fr);min-height:100vh;min-height:100svh;overflow:hidden;background:#050506;color:var(--op-cream);isolation:isolate}
.op kbd{display:inline-block;padding:4px 8px 3px;border:1px solid currentColor;border-bottom-width:2px;border-radius:6px;font:600 .78em/1 var(--mono);letter-spacing:.04em;vertical-align:.08em;opacity:.8}
.op a{color:#e6e7e9;text-underline-offset:.2em}
.op a:hover{color:#fff}
.op-sky{position:absolute;inset:0;z-index:-2;overflow:hidden;background:radial-gradient(ellipse 60% 46% at 50% 8%,rgba(226,35,26,.22) 0,rgba(226,35,26,0) 70%),linear-gradient(180deg,#060607 0%,#0b0b0d 52%,#131316 80%,#08080a 100%)}
.op-stars{position:absolute;left:0;top:0;width:2px;height:2px;border-radius:50%;animation:op-twinkle 4.5s ease-in-out infinite alternate}
.op-stars-far{width:1px;height:1px;animation-duration:6.5s;animation-delay:-2s}
.op-floor{position:absolute;left:-50%;right:-50%;bottom:-6%;height:42%;background:linear-gradient(0deg,rgba(255,255,255,.07) 1px,rgba(0,0,0,0) 1px) 0 0/100% 46px,linear-gradient(90deg,rgba(255,255,255,.06) 1px,rgba(0,0,0,0) 1px) 0 0/64px 100%;transform:perspective(420px) rotateX(64deg);transform-origin:50% 100%;-webkit-mask-image:linear-gradient(0deg,#000 10%,rgba(0,0,0,0) 92%);mask-image:linear-gradient(0deg,#000 10%,rgba(0,0,0,0) 92%);animation:op-floor 9s linear infinite}
.op-floor:before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,rgba(226,35,26,0),rgba(226,35,26,.8),rgba(226,35,26,0));box-shadow:0 0 30px 6px rgba(226,35,26,.3)}
.op-grain{position:absolute;inset:-50%;z-index:6;pointer-events:none;opacity:.08;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.3'/%3E%3C/svg%3E");animation:op-grain 1.2s steps(4) infinite}
.op-head{grid-row:1;z-index:5;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 clamp(16px,3vw,48px);border-bottom:1px solid rgba(255,255,255,.08)}
.op-head-left{display:flex;align-items:center;gap:16px;min-width:0}
.op-logo{display:block;width:auto;height:28px;flex:none}
.op-identity{display:flex;align-items:center;gap:12px;padding-left:16px;border-left:1px solid rgba(255,255,255,.18);color:#d9dadc;font:700 12.5px/1 var(--ui);letter-spacing:.16em;white-space:nowrap}
.op-identity i{width:6px;height:6px;border-radius:2px;background:var(--op-red)}
.op-case{color:#8a8d93;font-family:var(--mono);letter-spacing:.06em}
.op-head-tools{display:flex;align-items:center;gap:8px}
.op-pill{display:inline-flex;align-items:center;padding:11px 17px;border:1px solid rgba(255,255,255,.2);border-radius:999px;background:rgba(255,255,255,.05);color:#e6e7e9;font:600 13px/1 var(--ui);letter-spacing:.06em;text-decoration:none;white-space:nowrap;transition:background .2s,color .2s,border-color .2s}
.op-pill[aria-pressed="false"]{color:#8a8d93}
.op-pill:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.4);color:#fff}
.op-title{grid-row:2;z-index:3;align-self:center;justify-self:center;display:flex;flex-direction:column;align-items:center;max-width:100%;padding:40px 20px 9vh;text-align:center}
.op-kicker{display:flex;align-items:center;gap:16px;margin:0 0 30px;color:#c9cbd0;font:700 13px/1.3 var(--ui);letter-spacing:.2em;animation:op-rise 1s ease .15s both}
.op-kicker i{width:40px;height:1px;flex:none;background:var(--op-red);opacity:.9}
.op-wordmark{display:flex;flex-direction:column;align-items:center;margin:0;font-weight:400;outline:none}
.op-word-small{margin-right:-.95em;color:#9fa2a8;font:500 clamp(13px,1.25vw,19px)/1 var(--mono);letter-spacing:.95em;animation:op-rise 1s ease .3s both}
.op-word-big{display:flex;margin:.1em 0 0;color:#fff;font:800 clamp(48px,min(12vw,18vh),168px)/.92 var(--ui);letter-spacing:-.045em;text-shadow:0 0 60px rgba(255,255,255,.08),0 14px 60px #000}
.op-word-big span{display:inline-block;animation:op-letter 1.2s cubic-bezier(.2,.8,.2,1) both;animation-delay:calc(var(--i) * 70ms + 450ms)}
.op-word-big .op-word-dot{color:var(--op-red)}
.op-begin{position:relative;overflow:hidden;display:inline-flex;align-items:center;gap:20px;padding:19px 22px 19px 34px;border:1px solid #fff;border-radius:999px;background:#fff;color:#0d0d0f;font:800 15px/1 var(--ui);letter-spacing:.14em;box-shadow:0 14px 44px rgba(0,0,0,.55),0 0 0 6px rgba(255,255,255,.06);transition:transform .25s,box-shadow .25s}
.op-begin:hover{transform:translateY(-3px);box-shadow:0 20px 56px rgba(0,0,0,.6),0 0 0 6px rgba(226,35,26,.36)}
.op-begin:after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(226,35,26,0) 35%,rgba(226,35,26,.16) 50%,rgba(226,35,26,0) 65%);transform:translateX(-130%);animation:op-sheen 5s ease 3s infinite}
.op-begin kbd{border-color:rgba(13,13,15,.35);font-size:11.5px}
.op-credit{margin:22px 0 0;color:#6f7279;font:600 12px/1.6 var(--ui);letter-spacing:.12em;text-transform:uppercase;animation:op-rise 1s ease 2.3s both}
.op-credit a{color:#c9cbd0;text-transform:none;letter-spacing:.02em}
.outro-time{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:center;gap:6px 26px;margin:26px 0 0;color:#c9cbd0;font:500 16px/1.3 var(--ui);animation:op-rise 1s ease .95s both}
.outro-time b{margin-left:6px;color:#fff;font:700 clamp(24px,2.8vw,34px)/1 var(--mono)}
.outro-rules{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;width:min(860px,100%);margin:26px 0 0;padding:0;list-style:none;text-align:left}
.outro-rules li{display:flex;gap:14px;padding:14px 16px;border:1px solid rgba(255,255,255,.1);border-radius:14px;background:rgba(255,255,255,.035);animation:op-rise .9s ease both}
.outro-rules li:nth-child(1){animation-delay:1.35s}
.outro-rules li:nth-child(2){animation-delay:1.5s}
.outro-rules li:nth-child(3){animation-delay:1.65s}
.outro-rules li:nth-child(4){animation-delay:1.8s}
.outro-rules b{flex:none;color:var(--op-red);font:700 12px/1.6 var(--mono)}
.outro-rules span{color:#c9cbd0;font:500 14.5px/1.5 var(--ui)}
.outro-rules em{color:#fff;font-style:normal;font-weight:700}
.outro-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:12px 16px;margin-top:32px;animation:op-rise 1s ease 2.05s both}
.outro-review{padding:17px 22px}

/* ---------- Game room ---------- */
.room-shell{display:flex;flex-direction:column;height:100vh;height:100dvh}
/* The frosted glass lives on a pseudo-element, as in Nightjar's room. */
.topbar{position:relative;z-index:20;flex:none;display:flex;align-items:center;gap:18px;min-height:60px;padding:0 clamp(14px,1.8vw,26px);border-bottom:1px solid rgba(5,5,5,.07)}
.topbar:before{content:"";position:absolute;inset:0;z-index:-1;background:rgba(238,240,242,.72);-webkit-backdrop-filter:blur(18px) saturate(160%);backdrop-filter:blur(18px) saturate(160%)}

/* One round marker per level, grouped by section. Black = captured, red = here, dashed = locked. */
.level-nav{flex:1;min-width:0;display:flex;justify-content:center}
.level-nav ol{display:flex;align-items:center;margin:0;padding:4px 2px;list-style:none}
.level-nav li{position:relative;display:flex;align-items:center;flex:none}
.level-nav li+li{margin-left:7px}
.level-nav li.sec-start:not(:first-child){margin-left:18px}
.level-nav li:not(:last-child):not(.sec-end):after{content:"";position:absolute;left:100%;top:50%;width:7px;height:1px;background:var(--line-strong)}
.level-nav li.is-done:not(.sec-end):after{background:var(--ink)}
.lvl{position:relative;display:grid;place-items:center;width:28px;height:28px;border:1px solid var(--line-strong);border-radius:50%;background:rgba(255,255,255,.7);color:var(--ink-soft);font:600 11.5px/1 var(--mono);font-variant-numeric:tabular-nums;text-decoration:none;transition:background .3s,border-color .3s,color .3s,box-shadow .3s,transform .2s var(--ease)}
.lvl:hover{transform:translateY(-1px);border-color:var(--ink)}
.lvl.is-captured{border-color:var(--ink);background:var(--ink);color:#fff}
.lvl.is-current{border-color:var(--accent);background:var(--accent);color:#fff;box-shadow:0 0 0 5px var(--accent-ring),0 8px 18px rgba(226,35,26,.28)}
.lvl.is-locked{border-style:dashed;background:transparent;color:rgba(5,5,5,.38);cursor:not-allowed}
.lvl.is-locked:hover{transform:none;border-color:var(--line-strong)}
.lvl.pop{animation:marker-pop .8s cubic-bezier(.2,.9,.3,1.3)}
/* Hover label: level number and name. */
.lvl:before{content:attr(data-tip);position:absolute;left:50%;top:calc(100% + 10px);z-index:30;padding:7px 10px;border-radius:9px;background:var(--ink);color:#fff;font:600 12px/1.2 var(--ui);letter-spacing:0;white-space:nowrap;box-shadow:0 10px 24px rgba(5,5,5,.2);opacity:0;pointer-events:none;transform:translate(-50%,-4px);transition:opacity .15s,transform .15s}
.lvl:hover:before,.lvl:focus-visible:before{opacity:1;transform:translate(-50%,0)}
.level-nav li:first-child .lvl:before{left:0;transform:translate(0,-4px)}
.level-nav li:first-child .lvl:hover:before{transform:none}
.level-nav li:last-child .lvl:before{left:auto;right:0;transform:translate(0,-4px)}
.level-nav li:last-child .lvl:hover:before{transform:none}
.flag-count{display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 12px 0 10px;color:var(--muted);font:500 13px/1 var(--ui);white-space:nowrap}
.flag-count .icon{width:16px;height:16px;color:var(--accent)}
.flag-count b{color:var(--ink);font:700 13px/1 var(--mono)}
.reset-wrap{position:relative}
.confirm{position:absolute;right:0;top:calc(100% + 10px);z-index:40;width:330px;padding:16px;border:1px solid var(--glass-border);border-radius:18px;background:rgba(255,255,255,.97);box-shadow:0 30px 70px rgba(18,22,30,.2);color:var(--ink-soft);font:14px/1.5 var(--ui)}
.confirm p{margin:0 0 12px}
.confirm b{color:var(--ink)}
.confirm-actions{display:flex;gap:8px}
.confirm-more{margin:12px 0 0!important;padding-top:11px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}
.link-btn{padding:0;border:0;background:none;color:var(--accent-hover);font:inherit;font-weight:700;text-decoration:underline;text-underline-offset:2px}
.link-btn:hover{color:var(--accent)}

.room{flex:1;min-height:0;display:grid;grid-template-columns:minmax(320px,390px) minmax(0,1fr);gap:14px;width:100%;max-width:1640px;margin:0 auto;padding:14px clamp(14px,1.8vw,26px)}

/* The brief: a glass panel that scrolls on its own. */
.brief-col{min-height:0;overflow-y:auto;padding:22px 22px 26px;border:1px solid var(--glass-border);border-radius:var(--radius);background:var(--glass);box-shadow:var(--glass-shadow);scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent;overscroll-behavior:contain}
.brief{outline:none}
.brief code,.brief-more code,.flagbar code,.toast code{padding:.08em .38em;border:1px solid rgba(5,5,5,.08);border-radius:6px;background:rgba(5,5,5,.055);color:var(--ink);font:600 .88em/1.3 var(--mono);white-space:nowrap}
.brief kbd,.brief-more kbd{padding:.05em .42em;border:1px solid var(--line-strong);border-bottom-width:2px;border-radius:6px;background:#fff;color:var(--ink);font:600 .82em/1.3 var(--mono)}
.brief-next{margin:7px 0 0;color:var(--muted);font:500 13px/1.3 var(--ui)}
.brief-title{margin:12px 0 0;font:800 clamp(28px,2.5vw,36px)/1.04 var(--ui);letter-spacing:-.045em}
.brief-title .title-dot{color:var(--accent)}
.brief-title.round-enter{animation:round-in .5s var(--ease) both}
.goal{margin:18px 0 0;padding:2px 0 2px 16px;border-left:3px solid var(--accent);color:var(--ink);font:500 17px/1.6 var(--ui)}
.brief-sec{margin-top:24px}
.brief-sec h2{display:flex;align-items:center;gap:12px;margin:0 0 12px;color:var(--muted);font:700 12px/1.2 var(--ui);letter-spacing:.12em;text-transform:uppercase}
.brief-sec h2:after{content:"";flex:1;height:1px;background:var(--line)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;padding:8px 14px;border:1px solid var(--line-strong);border-radius:11px;background:#fff;box-shadow:0 3px 0 #dcdee2;transition:transform .2s var(--ease),box-shadow .2s,border-color .2s}
.chip code{padding:0!important;border:0!important;background:none!important;color:var(--ink)!important;font:700 15px/1 var(--mono)!important}
.chip:hover{transform:translateY(-2px);border-color:var(--ink);box-shadow:0 5px 0 #c9ccd1}
.chip:active{transform:translateY(1px);box-shadow:0 1px 0 #c9ccd1}
.fine{margin:10px 0 0;color:var(--muted);font:500 12.5px/1.45 var(--ui)}
.reading{margin:0}
.read{padding:12px 0;border-top:1px solid var(--line)}
.read:first-child{padding-top:0;border-top:0}
.read dt{color:var(--ink);font:700 15px/1.35 var(--ui)}
.read dd{margin:4px 0 0;color:var(--ink-soft);font:400 14.5px/1.55 var(--ui)}
.hint-list{display:grid;gap:9px;margin:0 0 14px;padding-left:22px;color:var(--ink-soft);font:400 14.5px/1.55 var(--ui)}
.hint-list li::marker{color:var(--accent);font-weight:800}
.hint-list li{animation:pi-rise .35s ease-out}

/* The play column: the CRT on top, the flag strip underneath. */
.play{position:relative;min-width:0;min-height:0;display:flex;flex-direction:column;gap:12px}

/* ---------- The CRT terminal ---------- */
.terminal-panel,.terminal-panel[data-phosphor="green"]{--phos:#86ffa6;--phos-hi:#d9ffe3;--phos-soft:rgba(134,255,166,.7);--phos-dim:rgba(134,255,166,.46);--phos-faint:rgba(134,255,166,.16);--phos-glow:rgba(90,255,140,.3);--screen:#020a05;--mast:#061209;--dir:#6ab4ff}
.terminal-panel[data-phosphor="amber"]{--phos:#ffc35c;--phos-hi:#fff0d4;--phos-soft:rgba(255,195,92,.72);--phos-dim:rgba(255,195,92,.48);--phos-faint:rgba(255,195,92,.17);--phos-glow:rgba(255,170,40,.28);--screen:#0b0702;--mast:#150e04;--dir:#7cc0ff}
.terminal-panel[data-phosphor="white"]{--phos:#e9ebee;--phos-hi:#fff;--phos-soft:rgba(241,243,245,.7);--phos-dim:rgba(241,243,245,.44);--phos-faint:rgba(255,255,255,.14);--phos-glow:rgba(255,255,255,.18);--screen:#08080a;--mast:#111113;--dir:#6ab4ff}
.terminal-panel[data-phosphor="blue"]{--phos:#93d4ff;--phos-hi:#e4f5ff;--phos-soft:rgba(147,212,255,.72);--phos-dim:rgba(147,212,255,.46);--phos-faint:rgba(147,212,255,.17);--phos-glow:rgba(80,170,255,.28);--screen:#02060c;--mast:#07101a;--dir:#3f86ff}
.terminal-panel{position:relative;flex:1;min-height:0;display:flex;overflow:hidden;border:1px solid #000;border-radius:var(--radius);background:var(--screen);color:var(--phos);box-shadow:0 24px 60px rgba(18,22,30,.22);transition:background .4s}
.terminal-open{position:relative;display:flex;flex-direction:column;width:100%;min-width:0;min-height:0}
/* Retro CRT: dark scanlines, a curved-tube vignette, a glass glint, a soft phosphor glow with a
   slight red/blue fringe, a faint flicker and a refresh band rolling down. */
.terminal-open:before{content:"";position:absolute;inset:0;z-index:4;pointer-events:none;background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,0) 26%),radial-gradient(ellipse 120% 110% at 50% 50%,rgba(0,0,0,0) 64%,rgba(0,0,0,.48) 100%),repeating-linear-gradient(0deg,rgba(0,0,0,.24) 0 1px,rgba(0,0,0,0) 1px 3px);box-shadow:inset 0 0 80px rgba(0,0,0,.65),inset 0 0 0 1px rgba(255,255,255,.04);animation:crt-flicker 5s steps(1) infinite}
.terminal-open:after{content:"";position:absolute;left:0;right:0;top:0;height:100%;z-index:4;pointer-events:none;background:linear-gradient(180deg,rgba(255,255,255,0) 42%,rgba(255,255,255,.03) 50%,rgba(255,255,255,0) 58%);animation:crt-refresh 7s linear infinite}
.terminal-mast{display:flex;align-items:center;gap:12px;flex:none;height:42px;padding:0 54px 0 16px;border-bottom:1px solid var(--phos-faint);background:var(--mast);color:var(--phos-soft);font:500 12.5px/1 var(--mono);text-shadow:0 0 8px var(--phos-glow)}
.term-title{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.phosphor{display:flex;align-items:center;gap:7px;flex:none;margin-left:auto;padding:4px 8px;border:1px solid var(--phos-faint);border-radius:999px}
.phosphor-dot{width:13px;height:13px;padding:0;border:0;border-radius:50%;box-shadow:0 0 6px currentColor;transition:transform .2s,box-shadow .2s}
.phosphor-dot[data-phosphor="green"]{background:#86ffa6;color:rgba(134,255,166,.6)}
.phosphor-dot[data-phosphor="amber"]{background:#ffc35c;color:rgba(255,195,92,.6)}
.phosphor-dot[data-phosphor="white"]{background:#f1f3f5;color:rgba(255,255,255,.5)}
.phosphor-dot[data-phosphor="blue"]{background:#93d4ff;color:rgba(147,212,255,.6)}
.phosphor-dot:hover{transform:scale(1.2)}
.phosphor-dot[aria-pressed="true"]{box-shadow:0 0 0 2px var(--screen),0 0 0 3.5px currentColor,0 0 10px currentColor}
.term-power{position:absolute;top:6px;right:10px;z-index:10;display:grid;place-items:center;width:30px;height:30px;padding:0;border:1px solid var(--phos-faint);border-radius:50%;background:rgba(0,0,0,.4);color:var(--phos);box-shadow:0 0 10px var(--phos-glow);transition:color .3s,border-color .3s,box-shadow .3s}
.term-power svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round}
.term-power:hover{border-color:var(--phos)}
.terminal-panel.is-off .term-power{border-color:rgba(226,35,26,.6);color:#ff5d52;box-shadow:0 0 12px rgba(226,35,26,.55);animation:standby-pulse 2.4s ease-in-out infinite}
.term-standby{position:absolute;inset:0;z-index:3;display:none;flex-direction:column;align-items:center;justify-content:center;gap:6px;color:var(--phos-dim);font:600 14px/1.3 var(--mono);text-align:center;pointer-events:none}
.term-standby small{font:500 12px/1.3 var(--ui);opacity:.8}
.terminal-panel.is-off{cursor:pointer;background:#050506}
.terminal-panel.is-off .terminal-open{visibility:hidden}
.terminal-panel.is-off .term-standby{display:flex}
.terminal-panel.is-off .tv-glow,.terminal-panel.is-off .channel-static,.terminal-panel.is-off .channel-osd,.terminal-panel.is-off .win{display:none}
.terminal-panel.tv-off .terminal-open{animation:tv-off .58s cubic-bezier(.55,0,.75,.2) forwards}
.terminal-panel.tv-off .tv-glow:before{animation:tv-off-line .58s cubic-bezier(.55,0,.75,.2) forwards}
.terminal-panel.tv-off .tv-glow:after{animation:tv-off-dot .9s ease-out forwards}
.tv-glow{position:absolute;left:0;right:0;top:50%;z-index:6;height:0;pointer-events:none}
.tv-glow:before{content:"";position:absolute;left:3%;right:3%;top:-1.5px;height:3px;border-radius:3px;background:#fff;box-shadow:0 0 10px 3px rgba(255,255,255,.85),0 0 46px 12px rgba(255,93,82,.38);opacity:0}
.tv-glow:after{content:"";position:absolute;left:50%;top:0;width:26px;height:26px;margin:-13px 0 0 -13px;border-radius:50%;background:radial-gradient(circle,#fff 0 20%,rgba(255,255,255,.7) 36%,rgba(255,93,82,.28) 58%,rgba(255,93,82,0) 72%);opacity:0}
.terminal-panel.tv-on .terminal-open{animation:tv-on .95s cubic-bezier(.2,.7,.2,1) both}
.terminal-panel.tv-on .tv-glow:before{animation:tv-on-line .95s cubic-bezier(.2,.7,.2,1) both}
.terminal-panel.tv-on .tv-glow:after{animation:tv-on-dot .95s ease-out both}
.tv-gleam{position:absolute;inset:0;z-index:7;overflow:hidden;pointer-events:none;border-radius:inherit}
.tv-gleam:before{content:"";position:absolute;top:-20%;bottom:-20%;left:-40%;width:28%;background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.16),rgba(255,255,255,0));transform:translateX(-120%) skewX(-18deg);opacity:0}
.terminal-panel.tv-on .tv-gleam:before{animation:tv-gleam 1.1s cubic-bezier(.4,0,.2,1) .75s both}
.terminal-panel.retune .terminal-open{animation:retune .45s ease}
/* Channel switch between levels: static, a rolling picture and the channel number. */
.channel-static{position:absolute;inset:0;z-index:8;pointer-events:none;opacity:0;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='1' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3CfeComponentTransfer%3E%3CfeFuncR type='linear' slope='3.2' intercept='-1.1'/%3E%3CfeFuncG type='linear' slope='3.2' intercept='-1.1'/%3E%3CfeFuncB type='linear' slope='3.2' intercept='-1.1'/%3E%3CfeFuncA type='linear' slope='0' intercept='1'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E") 0 0/200px 200px,#0d0d0f;image-rendering:pixelated}
.channel-static:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,rgba(0,0,0,.28) 0 2px,rgba(0,0,0,0) 2px 4px),linear-gradient(180deg,rgba(255,255,255,0) 30%,rgba(255,255,255,.45) 38%,rgba(255,255,255,0) 46%) 0 0/100% 200%}
.channel-osd{position:absolute;top:56px;right:24px;z-index:9;opacity:0;pointer-events:none;color:var(--phos);font:700 28px/1 var(--mono);letter-spacing:.06em;text-shadow:-1.5px 0 rgba(255,45,85,.8),1.5px 0 rgba(70,170,255,.8),0 0 10px rgba(255,255,255,.7)}
.terminal-panel.channel-switch .channel-static{animation:static-show .8s ease both,static-crawl .24s steps(1) infinite}
.terminal-panel.channel-switch .channel-static:before{animation:static-roll .8s linear}
.terminal-panel.channel-switch .terminal-open{animation:channel-roll .8s cubic-bezier(.3,.7,.2,1)}
.terminal-panel.channel-switch .channel-osd{animation:osd-show 2s steps(1) both}

/* The shell itself. */
.term-body{position:relative;flex:1;min-height:0;display:flex}
.term-screen{flex:1;min-width:0;overflow-y:auto;padding:14px 20px 20px;color:var(--phos);font:500 14.5px/1.62 var(--mono);text-shadow:-.4px 0 rgba(255,45,85,.22),.4px 0 rgba(70,170,255,.22),0 0 7px var(--phos-glow);cursor:text;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:var(--phos-faint) transparent}
.term-screen ::selection{background:var(--phos);color:var(--screen);text-shadow:none}
.term-body.editing .term-screen{visibility:hidden}
.line{min-height:1.62em;white-space:pre-wrap;overflow-wrap:anywhere}
.block+.block{margin-top:2px}
.block-banner{margin-bottom:10px}
.echo .cmd{color:var(--phos-hi)}
.ps1{white-space:pre}
.ps1 .u{color:var(--phos-hi);font-weight:700}
.ps1 .p{color:var(--dir);font-weight:700}
.t-err{color:#ff6b5f}
.t-dim{color:var(--phos-dim)}
.t-gold{color:var(--accent-dark)}
.t-man-h{color:var(--phos-hi);font-weight:700}
.t-man-b{color:var(--phos-hi);font-weight:700}
.t-man-ex{color:var(--phos-soft)}
.t-ls-dir{color:var(--dir);font-weight:700}
.t-ls-sticky{background:var(--phos);color:var(--screen);text-shadow:none}
.t-cols{display:flex;flex-wrap:wrap}
.t-cols .cell{width:var(--col);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:pre}
.t-sys{display:flex;gap:9px;margin:6px 0;padding:6px 12px;border-left:2px solid var(--phos-dim);border-radius:0 9px 9px 0;background:linear-gradient(90deg,var(--phos-faint),rgba(0,0,0,0) 85%);color:var(--phos-hi);font:500 14px/1.5 var(--ui)}
.sys-mark:before{content:"›";font-weight:700}
.t-sys.t-award{border-left-color:var(--accent-dark);background:linear-gradient(90deg,rgba(255,93,82,.16),rgba(0,0,0,0) 85%);color:#fff;font-weight:600}
.t-award .sys-mark:before{content:"◆";color:var(--accent-dark);text-shadow:0 0 10px rgba(255,93,82,.9)}
.t-sys.t-warn{border-left-color:#ffc35c;background:linear-gradient(90deg,rgba(255,195,92,.16),rgba(0,0,0,0) 85%);color:#ffe2ad}
.t-warn .sys-mark:before{content:"▲";color:#ffc35c;font-size:.8em}
/* A flag on screen: bright, underlined in red, one click selects all of it. */
.flag-token{color:#fff;font-weight:700;border-bottom:2px solid var(--accent-dark);text-shadow:0 0 12px rgba(255,255,255,.55);-webkit-user-select:all;user-select:all;cursor:copy}
.restored{display:flex;align-items:center;gap:12px;margin:12px 0;color:var(--phos-dim);font:600 11px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase}
.restored:before,.restored:after{content:"";flex:1;height:1px;background:var(--phos-faint)}

/* The live command line: a transparent input under a painted copy. */
.cmdline{display:flex;min-height:1.62em}
.field{position:relative;flex:1;min-width:0;height:1.62em;overflow:hidden}
.paint{position:absolute;left:0;top:0;color:var(--phos-hi);white-space:pre;pointer-events:none}
#term-input{position:absolute;inset:0;width:100%;height:100%;margin:0;padding:0;border:0;outline:0;background:transparent;color:transparent;caret-color:transparent;font:inherit;letter-spacing:inherit}
#term-input::selection{background:transparent;color:transparent}
.cursor{outline:1px solid var(--phos-dim);outline-offset:-1px}
.cmdline.focused .cursor{outline:0;background:var(--phos);color:var(--screen);text-shadow:none;animation:cursor 1.1s steps(1) infinite}
.sel{background:var(--phos-faint);outline:1px solid var(--phos-dim)}

/* nano: the real editor's inverse bars, in the screen's own colour. */
.nano{position:absolute;inset:0;z-index:3;display:flex;flex-direction:column;background:var(--screen);color:var(--phos);font:500 14.5px/1.6 var(--mono);text-shadow:0 0 7px var(--phos-glow)}
.nano-top{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;flex:none;height:1.8em;padding:0 12px;background:var(--phos);color:var(--screen);font-weight:700;text-shadow:none}
.nano-file{text-align:center}
.nano-mod{justify-self:end}
.nano-text,.nano-help{flex:1;min-height:0;margin:0;padding:10px 16px;overflow:auto;border:0;outline:0;resize:none;background:transparent;color:inherit;font:inherit;text-shadow:inherit;white-space:pre;tab-size:4;caret-color:var(--phos-hi);scrollbar-width:thin;scrollbar-color:var(--phos-faint) transparent}
.nano-text::selection{background:var(--phos);color:var(--screen)}
.nano-help{color:var(--phos-soft)}
.nano-status{flex:none;width:fit-content;max-width:100%;min-height:1.7em;margin:0 auto 2px;padding:0 8px;overflow:hidden;text-overflow:ellipsis;white-space:pre}
.nano-status.show{background:var(--phos);color:var(--screen);text-shadow:none}
.nano-ask{display:flex;align-items:center;gap:8px;flex:none;height:1.8em;padding:0 12px;background:var(--phos);color:var(--screen);text-shadow:none;outline:none}
.nano-ask label{font-weight:700;white-space:nowrap}
.nano-ask input{flex:1;min-width:0;border:0;outline:0;background:transparent;color:inherit;font:inherit;caret-color:var(--screen)}
.nano-keys{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:2px 8px;flex:none;padding:6px 10px 10px}
.nano-keys button{display:flex;align-items:center;gap:8px;padding:3px 4px;border:0;border-radius:6px;background:none;color:var(--phos-soft);font:500 13px var(--mono);text-align:left;text-shadow:inherit}
.nano-keys button:hover{background:var(--phos-faint);color:var(--phos-hi)}
.nano-keys kbd{padding:0 5px;border:0;border-radius:3px;background:var(--phos);color:var(--screen);font:700 12.5px/1.5 var(--mono);text-shadow:none}

/* A captured flag: the message comes up on the screen. */
.win{position:absolute;inset:0;z-index:12;display:grid;place-items:center;padding:20px;background:rgba(0,0,0,.76);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);opacity:0;transition:opacity .3s}
.win.show{opacity:1}
.win-card{width:min(520px,100%);color:var(--phos);text-align:center;text-shadow:-.6px 0 rgba(255,45,85,.3),.6px 0 rgba(70,170,255,.3),0 0 10px var(--phos-glow);transform:scale(.94);transition:transform .5s cubic-bezier(.2,.9,.25,1.2)}
.win.show .win-card{transform:none}
.win-kicker{display:inline-flex;align-items:center;gap:10px;margin:0;color:var(--phos-soft);font:700 13px/1 var(--mono);letter-spacing:.32em}
.win-kicker i{width:9px;height:9px;flex:none;background:var(--accent-dark);box-shadow:0 0 12px var(--accent-dark);transform:rotate(45deg);animation:gem-in .9s cubic-bezier(.2,.9,.3,1.3)}
.win-card h2{margin:16px 0 10px;color:var(--phos-hi);font:800 clamp(32px,3.6vw,50px)/1 var(--ui);letter-spacing:-.04em}
.win-card h2 .title-dot{color:var(--accent-dark)}
.win-card p{margin:0;color:var(--phos-soft);font:500 15px/1.5 var(--ui)}
.win-card p b{color:var(--phos-hi)}
.win-flag{display:inline-block;margin:0 0 14px!important;color:#fff!important;font:700 15px/1 var(--mono)!important;border-bottom:2px solid var(--accent-dark)}
.win-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:24px}
.crt-btn{display:inline-flex;align-items:center;gap:10px;height:44px;padding:0 20px;border:1px solid var(--phos);border-radius:999px;background:transparent;color:var(--phos);font:700 13px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;text-decoration:none;text-shadow:inherit;transition:background .2s,color .2s,box-shadow .2s}
.crt-btn:hover{background:var(--phos-faint)}
.crt-btn.solid{background:var(--phos);color:var(--screen);text-shadow:none;box-shadow:0 0 22px var(--phos-glow)}
.crt-btn.solid:hover{background:var(--phos-hi)}
.crt-btn kbd{padding:2px 6px;border:1px solid currentColor;border-radius:5px;font:600 11px/1 var(--mono);opacity:.7}

/* The flag strip under the terminal. */
.flagbar{flex:none;display:grid;gap:8px;padding:10px 10px 10px 18px;border:1px solid var(--glass-border);border-radius:18px;background:var(--glass);box-shadow:var(--glass-shadow)}
.flag-entry{display:flex;align-items:center;gap:14px}
.flag-label{flex:none}
#flag-input{flex:1;min-width:0;height:46px;padding:0 16px;border:1px solid var(--line-strong);border-radius:12px;background:#fff;color:var(--ink);font:700 15px/1 var(--mono);outline:none;transition:border-color .2s,box-shadow .2s}
#flag-input::placeholder{color:#a3a6ac;font-weight:500}
#flag-input:focus{border-color:var(--ink);box-shadow:0 0 0 4px var(--accent-ring)}
.flag-done{display:none;align-items:center;gap:12px;min-height:46px;color:var(--ink-soft);font:500 15px/1.4 var(--ui)}
.flag-done .done-mark{display:grid;place-items:center;width:26px;height:26px;flex:none;border-radius:50%;background:var(--good);color:#fff;font-size:13px}
.flag-done b{color:var(--ink)}
.flag-done .primary{margin-left:auto}
.flagbar.is-captured .flag-entry{display:none}
.flagbar.is-captured .flag-done{display:flex}
.flag-msg{justify-self:start;margin:0 0 2px;padding:7px 12px;border-radius:10px;font:600 14px/1.35 var(--ui)}
.flag-msg:empty{display:none}
.flag-msg.good{background:var(--good-soft);color:var(--good)}
.flag-msg.bad{background:var(--accent-soft);color:var(--accent-hover)}
.flagbar.shake{animation:shake .4s}

.toast{position:fixed;left:50%;bottom:24px;z-index:60;max-width:calc(100% - 32px);padding:12px 18px;border-radius:999px;background:var(--ink);color:#fff;font:600 14px/1.35 var(--ui);box-shadow:0 18px 40px rgba(5,5,5,.25);opacity:0;transform:translate(-50%,16px);transition:opacity .25s,transform .25s;pointer-events:none}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- Motion ---------- */
@keyframes op-twinkle{from{opacity:.45}to{opacity:1}}
@keyframes op-floor{from{background-position:0 0,0 0}to{background-position:0 46px,0 0}}
@keyframes op-grain{0%{translate:0 0}25%{translate:-4% 3%}50%{translate:3% -2%}75%{translate:-2% -4%}}
@keyframes op-rise{from{opacity:0;translate:0 22px}}
@keyframes op-letter{from{opacity:0;transform:translateY(.32em) rotateX(70deg);filter:blur(14px)}}
@keyframes op-sheen{0%{transform:translateX(-130%)}35%,100%{transform:translateX(130%)}}
@keyframes op-leave{to{opacity:0;filter:blur(6px)}}
@keyframes round-in{from{opacity:.25;transform:translateY(8px)}}
@keyframes crt-refresh{from{transform:translateY(-100%)}to{transform:translateY(100%)}}
@keyframes crt-flicker{0%,100%{opacity:1}41%{opacity:.93}42%{opacity:1}77%{opacity:.96}78%{opacity:1}}
@keyframes tv-on{0%{opacity:0;transform:scale(.04,.004);filter:brightness(10) saturate(0)}14%{opacity:1;transform:scale(.06,.004)}32%{transform:scale(1,.004);filter:brightness(8) saturate(0)}52%{transform:scale(1,1.03);filter:brightness(2.6) contrast(1.5) saturate(.4)}64%{transform:scale(1,.985);filter:brightness(1.5) contrast(1.15)}74%{transform:none;filter:brightness(1.25);opacity:.9}80%{opacity:1;filter:brightness(1.06)}86%{opacity:.94}100%{opacity:1;transform:none;filter:none}}
@keyframes tv-on-line{0%,10%{opacity:0;transform:scale(0,1)}16%{opacity:1;transform:scale(.06,1)}32%{opacity:1;transform:scale(1,1)}44%{opacity:.5;transform:scale(1,6)}56%{opacity:0;transform:scale(1,14)}100%{opacity:0}}
@keyframes tv-on-dot{0%{opacity:0;transform:scale(.2)}6%{opacity:1;transform:scale(1.2)}16%{opacity:.9;transform:scale(.8)}26%{opacity:0;transform:scale(.5)}100%{opacity:0}}
@keyframes tv-off{0%{opacity:1;transform:none;filter:none}16%{transform:scale(1.01,.9);filter:brightness(1.8)}46%{opacity:1;transform:scale(1,.005);filter:brightness(7) saturate(0)}70%{opacity:.8;transform:scale(.03,.005)}100%{opacity:0;transform:scale(0,0)}}
@keyframes tv-off-line{0%,32%{opacity:0;transform:scale(1,18)}46%{opacity:1;transform:scale(1,1)}68%{opacity:1;transform:scale(.025,1)}74%,100%{opacity:0;transform:scale(.01,1)}}
@keyframes tv-off-dot{0%,42%{opacity:0;transform:scale(.6)}50%{opacity:1;transform:scale(1.2)}100%{opacity:0;transform:scale(.12)}}
@keyframes tv-gleam{0%{opacity:0;transform:translateX(-120%) skewX(-18deg)}15%{opacity:1}100%{opacity:0;transform:translateX(560%) skewX(-18deg)}}
@keyframes standby-pulse{50%{box-shadow:0 0 4px rgba(226,35,26,.3)}}
@keyframes retune{0%{filter:none}30%{filter:brightness(1.6) blur(.6px);transform:skewX(-1.5deg)}60%{filter:brightness(1.15);transform:skewX(.8deg)}100%{filter:none;transform:none}}
@keyframes static-show{0%{opacity:0}8%{opacity:1}55%{opacity:.95}100%{opacity:0}}
@keyframes static-crawl{0%{background-position:0 0,0 0}25%{background-position:71px -93px,0 0}50%{background-position:-113px 41px,0 0}75%{background-position:29px 127px,0 0}}
@keyframes static-roll{from{background-position:0 0,0 0}to{background-position:0 0,0 -200%}}
@keyframes channel-roll{0%{transform:none;filter:none}10%{transform:translateY(-6%) skewX(-4deg);filter:brightness(1.8) contrast(1.4)}22%{transform:translateY(8%) skewX(3deg)}34%{transform:translateY(-3%) scaleY(1.02)}50%{transform:translateY(2%);filter:brightness(1.3)}70%{transform:translateY(-.6%)}100%{transform:none;filter:none}}
@keyframes osd-show{0%{opacity:1}88%{opacity:1}100%{opacity:0}}
@keyframes cursor{50%{background:transparent;color:var(--phos-hi)}}
@keyframes caret-blink{50%{opacity:0}}
@keyframes marker-pop{0%{transform:scale(1)}35%{transform:scale(1.45);box-shadow:0 0 0 10px var(--accent-ring)}100%{transform:scale(1)}}
@keyframes gem-in{from{transform:rotate(-135deg) scale(.2);opacity:0}}
@keyframes shake{20%,60%{transform:translateX(-6px)}40%,80%{transform:translateX(6px)}}
@keyframes pi-rise{from{opacity:0;transform:translateY(16px)}}
@keyframes pi-dot{0%{opacity:0;transform:translateY(-1.4em)}40%{opacity:1;transform:none}55%{transform:translateY(-.28em)}70%{transform:none}82%{transform:translateY(-.08em)}100%{transform:none}}
@keyframes pi-say{from{opacity:0;transform:translateY(4px)}}

/* ---------- Narrower screens ---------- */
@media(max-width:1360px){.topbar-tools .label{display:none}.topbar-tools .topbar-action{width:38px;justify-content:center;padding:0}.brand-wordmark small{display:none}}
@media(max-width:1180px){
  .topbar{flex-wrap:wrap;gap:8px 14px;padding-top:9px;padding-bottom:9px}
  .level-nav{order:3;flex-basis:100%;overflow-x:auto;justify-content:flex-start;scrollbar-width:none}
  .level-nav::-webkit-scrollbar{display:none}
  .level-nav ol{margin:0 auto}
  .topbar-tools{margin-left:auto}
  .lvl:before{display:none}
  .room{grid-template-columns:minmax(300px,350px) minmax(0,1fr)}
}
@media(max-width:900px){
  .pi-stage{grid-template-columns:minmax(0,1fr);gap:26px}
  .pi-crt{justify-self:center;width:100%;max-width:560px}
  .pi-screen{min-height:340px}
  /* Phones and small tablets: the page scrolls. Goal first, then the terminal, then the reading. */
  .room-shell{height:auto;min-height:100vh}
  .topbar{position:sticky;top:0}
  .room{display:flex;flex-direction:column;gap:12px;padding:12px}
  .brief-col{display:contents}
  .brief,.brief-more{padding:18px;border:1px solid var(--glass-border);border-radius:18px;background:var(--glass);box-shadow:var(--glass-shadow)}
  .brief-more .brief-sec:first-child{margin-top:0}
  .brief{order:1}
  .play{order:2;scroll-margin-top:120px}
  .brief-more{order:3}
  .terminal-panel{flex:none;height:max(420px,66vh);height:max(420px,66dvh)}
  .goal{font-size:16px}
}
@media(max-width:600px){
  .pi-head .brand-wordmark{display:none}
  .pi-author-title{display:none}
  .pi-author{margin-right:2px;padding-right:12px}
  .pi-stage{padding:18px 14px 24px}
  .pi-crt{padding:10px 10px 18px;border-radius:24px}
  .pi-screen{min-height:300px;padding:0 12px 12px}
  .pi-mast{margin:0 -12px}
  .pi-term{font-size:12.5px}
  .brand-wordmark{display:none}
  .flag-count{padding:0 4px}
  .terminal-mast{gap:8px;padding-left:12px}
  .terminal-lights{display:none}
  .term-screen{padding:12px 12px 16px;font-size:13px}
  .nano{font-size:13px}
  .nano-keys{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flagbar{padding:10px}
  .flag-entry{flex-wrap:wrap;gap:10px}
  .flag-label{width:100%}
  .flag-entry .primary{flex:1}
  .flag-done{flex-wrap:wrap}
  .flag-done .primary{margin-left:0}
  .confirm{position:fixed;left:12px;right:12px;top:auto;bottom:16px;width:auto}
  .outro-rules{grid-template-columns:minmax(0,1fr)}
  .op-identity{display:none}
  .op-head{padding:0 14px}
  .op-logo{height:22px}
  .op-pill{padding:9px 12px;font-size:12px}
  .op-kicker{gap:10px;font-size:11px;letter-spacing:.14em}
  .op-kicker i{display:none}
  .op-begin{gap:14px;padding:17px 18px 17px 26px;font-size:14px}
}
@media(max-width:420px){.pi-by,.pi-sep{display:none}.pi-author-en{display:flex;flex-direction:column;align-items:flex-end;gap:3px;font-size:12px}.pi-start kbd{display:none}.pi-start{padding:0 24px}.op-begin kbd{display:none}}
@media(pointer:coarse){#term-input,.nano-text,.nano-ask input,#flag-input{font-size:16px}}

@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}