/* Guardbreak — retro terminal skin.
   Silkscreen is reserved for the logo. Chrome is VT323 (CRT, readable at size),
   body copy is IBM Plex Mono. */

:root{
  --bg:#120c1d; --panel:#1b1130; --head:#2a1a47; --sunk:#0f0a1b;
  --line:#3d2a63; --line2:#5c3f8a;
  --ink:#f1ebfb; --dim:#c3b2e4; --faint:#9c89c6;
  --mint:#5ff0c0; --pink:#ff6b92; --amber:#ffd04d; --orange:#ff8a4c; --blue:#8fcdff;
  --pix:'Silkscreen',monospace;
  --crt:'VT323',ui-monospace,monospace;
  --mono:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; color:var(--ink); font:13.5px/1.68 var(--mono);
  background:radial-gradient(1100px 520px at 50% -12%,#2d1c4c 0%,transparent 62%),var(--bg);
  -webkit-font-smoothing:antialiased;
}
/* faint CRT scanlines */
body::before{
  content:'';position:fixed;inset:0;pointer-events:none;z-index:9;
  background:repeating-linear-gradient(0deg,rgba(0,0,0,.18) 0 1px,transparent 1px 3px);
  opacity:.45;
}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-track{background:var(--sunk)}
::-webkit-scrollbar-thumb{background:var(--line);border:2px solid var(--sunk)}
::-webkit-scrollbar-thumb:hover{background:var(--line2)}

/* ---------- topbar ------------------------------------------------------ */
.topbar{display:flex;align-items:center;gap:20px;padding:16px 20px 14px;flex-wrap:wrap}
.logo{
  font-family:var(--pix);font-size:26px;letter-spacing:2px;line-height:1;
  color:#241036;background:var(--amber);padding:10px 14px 8px;
  border:2px solid #120c1d;box-shadow:5px 5px 0 var(--pink);
}
.logo .hot{color:var(--orange)}
.tag{display:flex;flex-direction:column;gap:1px;min-width:0}
.tag b{font-family:var(--crt);font-size:17px;letter-spacing:1.6px;text-transform:uppercase;color:var(--amber)}
.tag span{font-size:12px;color:var(--faint)}
.topright{margin-left:auto;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.pills{display:flex;gap:5px}
.pill-t{font-family:var(--crt);font-size:17px;line-height:1;padding:6px 10px 4px;border:1px solid var(--line2);color:var(--faint);background:var(--panel)}
.pill-t.done{color:#10261f;background:var(--mint);border-color:var(--mint);box-shadow:0 0 12px rgba(95,240,192,.4)}
.chip{font-size:11.5px;color:var(--faint);border:1px solid var(--line);padding:5px 9px;background:var(--panel)}

/* ---------- layout ------------------------------------------------------ */
.grid{
  display:grid;grid-template-columns:316px minmax(0,1fr) 344px;gap:14px;
  padding:0 20px;align-items:start;
}
.col{max-height:calc(100vh - 156px);overflow:auto;padding-right:2px}
.panel{background:var(--panel);border:1px solid var(--line);margin-bottom:14px}
.panel:last-child{margin-bottom:0}
.panel-head{
  display:flex;justify-content:space-between;align-items:center;gap:10px;
  background:var(--head);border-bottom:1px solid var(--line);padding:7px 12px 4px;
  font-family:var(--crt);font-size:19px;letter-spacing:1.5px;text-transform:uppercase;color:var(--amber);
}
.panel-head .meta{font-family:var(--mono);font-size:11px;letter-spacing:.3px;color:var(--faint);text-transform:none}
.panel-body{padding:13px}
.note{margin:0 0 11px;font-size:12px;color:var(--faint);line-height:1.6}

/* ---------- buttons ----------------------------------------------------- */
button{
  font-family:var(--crt);font-size:17px;line-height:1;letter-spacing:1.3px;text-transform:uppercase;cursor:pointer;
  border:1px solid var(--line2);background:#241640;color:var(--ink);padding:9px 12px 6px;
  box-shadow:3px 3px 0 #0b0714;transition:background .12s;
}
button:hover:not(:disabled){background:#32205c}
button:active:not(:disabled){transform:translate(2px,2px);box-shadow:1px 1px 0 #0b0714}
button:disabled{opacity:.45;cursor:not-allowed}
button.wide{display:block;width:100%}
.btn-go{background:var(--amber);color:#241036;border-color:var(--amber);box-shadow:3px 3px 0 var(--pink)}
.btn-go:hover:not(:disabled){background:#ffdd7a}
.btn-sm{font-size:15px;padding:8px 10px 5px;box-shadow:2px 2px 0 #0b0714}

/* ---------- technique selector ------------------------------------------ */
.deckpick{display:flex;flex-direction:column;border-bottom:1px solid var(--line)}
.pick{
  display:flex;align-items:center;gap:9px;width:100%;text-align:left;
  background:#160e28;border:0;border-bottom:1px solid var(--line);box-shadow:none;
  padding:9px 12px 7px;color:var(--dim);letter-spacing:1px;
}
.pick:last-child{border-bottom:0}
.pick:hover:not(:disabled){background:#201339}
.pick:active:not(:disabled){transform:none;box-shadow:none}
.pick-id{font-family:var(--crt);font-size:16px;line-height:1;color:#241036;background:var(--line2);padding:5px 7px 3px}
.pick-name{font-family:var(--crt);font-size:17px;line-height:1;letter-spacing:1.2px}
.pick.on{background:var(--head);color:var(--ink);box-shadow:inset 3px 0 0 var(--amber)}
.pick.on .pick-id{background:var(--orange)}
.pick.done .pick-id{background:var(--mint)}
.pick.done::after{content:'✔';margin-left:auto;font-family:var(--mono);font-size:13px;color:var(--mint)}

.d-head{display:flex;align-items:center;gap:9px}
.tech-id{font-family:var(--crt);font-size:16px;line-height:1;color:#241036;background:var(--orange);padding:5px 7px 3px}
#techDetail.done .tech-id{background:var(--mint)}
.d-name{font-family:var(--crt);font-size:19px;line-height:1;letter-spacing:1.3px;color:var(--ink)}
.d-tag{margin:10px 0 12px;font-size:12.5px;color:var(--dim);line-height:1.65}
.brief{margin:0 0 13px;padding:11px;border:1px solid var(--line);background:#160e28}
.brief dt{
  font-family:var(--crt);font-size:15px;line-height:1;letter-spacing:1.2px;text-transform:uppercase;
  color:var(--amber);margin-bottom:4px;
}
.brief dd{margin:0 0 11px;font-size:12px;color:var(--dim);line-height:1.6}
.brief dd:last-child{margin-bottom:0}
.paylabel{
  font-family:var(--crt);font-size:15px;line-height:1;letter-spacing:1.2px;color:var(--faint);
  text-transform:uppercase;margin-bottom:6px;
}
.pay{
  border:1px dashed var(--line2);background:var(--sunk);color:var(--blue);
  font-size:11.5px;line-height:1.6;padding:9px;max-height:160px;overflow:auto;
  white-space:pre-wrap;word-break:break-word;
}
.techbtns{display:flex;gap:7px;margin-top:11px}
.techbtns button{flex:1}

/* ---------- chat --------------------------------------------------------- */
.chatpanel{display:flex;flex-direction:column;height:calc(100vh - 156px)}
.chat{flex:1;overflow:auto;padding:22px 15px 15px;display:flex;flex-direction:column;gap:18px}
.msg{max-width:86%;min-width:0;padding:11px 13px;border:1px solid var(--line);font-size:13px;line-height:1.7;position:relative;overflow-wrap:anywhere;word-break:break-word}
.msg::before{
  position:absolute;top:-10px;left:10px;font-family:var(--crt);font-size:15px;line-height:1;letter-spacing:1.3px;
  background:var(--panel);padding:2px 6px 0;
}
.msg.bot{align-self:flex-start;background:#160e28}
.msg.bot::before{content:'NIMBO';color:var(--amber)}
.msg.user{align-self:flex-end;background:#2b1a4d;border-color:var(--line2)}
.msg.user::before{content:'YOU';color:var(--blue);left:auto;right:10px}
.longmsg{max-height:168px;overflow:auto;white-space:pre-wrap;padding-top:4px}
.longmsg-tag{float:right;margin:-2px 0 2px 8px;font-family:var(--crt);font-size:12px;color:var(--faint);letter-spacing:.05em;position:sticky;top:0}
.msg.typing{align-self:flex-start;border-style:dashed;color:var(--faint);background:transparent}
.msg.typing::after{content:'_';animation:blink .9s steps(2,start) infinite}
@keyframes blink{50%{opacity:0}}
.msg.blocked{align-self:center;max-width:100%;color:var(--pink);border-color:var(--pink);background:#2a0f1e;text-align:center}
.msg pre{background:var(--sunk);border:1px solid var(--line);padding:10px;overflow:auto;font-size:12px;line-height:1.6;color:var(--mint);margin:10px 0}
.msg code{background:var(--sunk);padding:1px 4px;color:var(--mint)}
.badge{font-family:var(--crt);font-size:15px;line-height:1;letter-spacing:1.2px;padding:5px 7px 3px;display:inline-block;margin-bottom:9px}
.badge.bypass{background:var(--amber);color:#241036}
.badge.refused{background:var(--line2);color:var(--ink)}

.composer{border-top:1px solid var(--line);padding:12px;background:#160e28}
textarea{
  width:100%;background:var(--sunk);border:1px solid var(--line2);color:var(--ink);
  font:13.5px/1.65 var(--mono);padding:10px;resize:vertical;outline:none;
}
textarea:focus{border-color:var(--amber);box-shadow:0 0 0 1px var(--amber)}
.composer-actions{display:flex;align-items:center;gap:8px;margin-top:10px}
.charcount{font-family:var(--crt);font-size:16px;letter-spacing:1.2px;color:var(--faint);margin-right:auto}

/* ---------- risk bar ----------------------------------------------------- */
.riskhead{display:flex;justify-content:space-between;align-items:flex-end}
.risklabel{font-family:var(--crt);font-size:18px;letter-spacing:1.6px;color:var(--dim);text-transform:uppercase}
.riskval{font-family:var(--crt);font-size:40px;line-height:.85;color:var(--faint)}
.bar{position:relative;height:28px;margin:10px 0 5px;background:var(--sunk);border:1px solid var(--line2);padding:3px;overflow:hidden}
.bar .segs{display:flex;gap:2px;height:100%}
.bar i{flex:1;background:#271846;transform:scaleY(.3);transition:transform .16s steps(3),background .16s}
.bar i.on{transform:scaleY(1);background:var(--mint);box-shadow:0 0 7px rgba(95,240,192,.45)}
.bar.warn i.on{background:var(--amber);box-shadow:0 0 7px rgba(255,208,77,.45)}
.bar.danger i.on{background:var(--pink);box-shadow:0 0 7px rgba(255,107,146,.5)}
.notch{position:absolute;top:0;bottom:0;width:2px;background:var(--amber);opacity:.85}
.notch::after{content:'';position:absolute;top:0;left:-3px;border:4px solid transparent;border-top-color:var(--amber)}
.bar.scanning::after{
  content:'';position:absolute;top:0;bottom:0;width:38%;
  background:linear-gradient(90deg,transparent,rgba(255,208,77,.35),transparent);
  animation:sweep .95s linear infinite;
}
@keyframes sweep{from{transform:translateX(-110%)}to{transform:translateX(380%)}}
.barfoot{display:flex;justify-content:space-between;font-size:11px;color:var(--faint)}
.stamp{
  font-family:var(--crt);font-size:19px;line-height:1;letter-spacing:1.8px;text-transform:uppercase;text-align:center;
  padding:9px 6px 6px;border:2px solid var(--line2);color:var(--faint);margin:12px 0 2px;
}
.stamp.pass{color:#10261f;background:var(--mint);border-color:var(--mint)}
.stamp.block{color:#2a0912;background:var(--pink);border-color:var(--pink)}

/* ---------- console detail ----------------------------------------------- */
.sec{border-top:1px solid var(--line);margin-top:13px;padding-top:11px}
.sec.first{border-top:0;margin-top:15px;padding-top:0}
.sec h3{font-family:var(--crt);font-size:16px;line-height:1;letter-spacing:1.4px;text-transform:uppercase;color:var(--amber);margin:0 0 9px}
.sources{display:grid;grid-template-columns:1fr 1fr;gap:7px}
.src{border:1px solid var(--line);background:var(--sunk);padding:9px 6px 7px;text-align:center}
.src b{display:block;font-family:var(--crt);font-size:26px;line-height:1;color:var(--faint);margin-bottom:4px}
.src span{font-size:11px;text-transform:uppercase;letter-spacing:.4px;color:var(--faint)}
.src.win{border-color:var(--amber)}
.src.win b{color:var(--amber)}
.clfreason{font-size:11.5px;color:var(--dim);margin-top:8px;line-height:1.6}
.hit{display:flex;gap:9px;padding:7px 0;border-bottom:1px dotted var(--line)}
.hit:last-child{border-bottom:0}
.w{font-family:var(--crt);font-size:17px;line-height:1;min-width:38px;text-align:center;padding-top:3px}
.w.plus{color:var(--pink)}
.w.minus{color:var(--mint)}
.l{font-size:12px;color:var(--dim);line-height:1.6}
.ev{display:block;font-size:11px;color:var(--faint);margin-top:3px}
.empty{font-size:12px;color:var(--faint)}
.decoded{font-size:11.5px;color:var(--blue);background:var(--sunk);border:1px solid var(--line);padding:8px;margin-top:8px;word-break:break-word;line-height:1.6}
.outcome{border:2px solid;padding:12px;margin-top:14px;font-size:12.5px;line-height:1.7}
.outcome b{display:block;font-family:var(--crt);font-size:17px;line-height:1.2;letter-spacing:1.2px;margin-bottom:7px}
.outcome.win{border-color:var(--amber);background:#2c1f0b}
.outcome.loss{border-color:var(--line2);background:#160e28;color:var(--dim)}
.reveal{margin-top:10px;border-top:1px dashed var(--line2);padding-top:10px;color:var(--dim)}


/* ---------- intro --------------------------------------------------------- */
.howbtn{font-family:var(--crt);font-size:15px;letter-spacing:1px;padding:5px 10px}
/* While the tour is running the overlay itself is clear -- the dimming comes
   from the spotlight's shadow, so the highlighted panel stays legible. */
.overlay.tour{background:transparent;backdrop-filter:none}
.tour-spot{
  position:fixed;pointer-events:none;
  border:2px solid var(--amber);
  box-shadow:0 0 0 9999px rgba(8,4,16,.86),0 0 26px rgba(255,208,77,.45) inset;
  transition:left .35s cubic-bezier(.3,.8,.3,1),top .35s cubic-bezier(.3,.8,.3,1),
             width .35s cubic-bezier(.3,.8,.3,1),height .35s cubic-bezier(.3,.8,.3,1);
}
.tour-spot[hidden]{display:none}

.intro-card{
  position:relative;width:min(430px,calc(100vw - 24px));max-height:92vh;overflow:auto;
  background:var(--panel);border:2px solid var(--line2);
  box-shadow:10px 10px 0 rgba(0,0,0,.45),0 0 44px rgba(143,205,255,.10);
  animation:introIn .4s cubic-bezier(.2,.9,.3,1.1) both;
}
/* Anchored beside its target rather than centred, with a pointer on the edge
   that faces it. --arrow-y is the target's centre in card coordinates. */
.intro-card.anchored{position:absolute;margin:0}
/* The card scrolls its own content, so an arrow drawn on it would be clipped.
   It lives next to the card instead and is positioned in viewport space. */
.tour-arrow{
  position:fixed;width:0;height:0;border:11px solid transparent;pointer-events:none;
}
.tour-arrow[hidden]{display:none}
.tour-arrow.arrow-left{border-right-color:var(--amber);animation:arrowL 1.5s ease-in-out infinite}
.tour-arrow.arrow-right{border-left-color:var(--amber);animation:arrowR 1.5s ease-in-out infinite}
.tour-arrow.arrow-up{border-bottom-color:var(--amber);animation:arrowU 1.5s ease-in-out infinite}
.tour-arrow.arrow-down{border-top-color:var(--amber);animation:arrowD 1.5s ease-in-out infinite}
@keyframes arrowL{0%,100%{transform:translateX(0)}50%{transform:translateX(-7px)}}
@keyframes arrowR{0%,100%{transform:translateX(0)}50%{transform:translateX(7px)}}
@keyframes arrowU{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
@keyframes arrowD{0%,100%{transform:translateY(0)}50%{transform:translateY(7px)}}

.intro-shot{display:block;width:100%;height:auto;border-bottom:1px solid var(--line)}
.intro-body{padding:18px 22px 4px}
.intro-kicker{font-family:var(--crt);font-size:16px;letter-spacing:2px;text-transform:uppercase;color:var(--mint)}
.intro-title{
  font-family:var(--pix);font-size:20px;line-height:1.3;letter-spacing:1.5px;text-transform:uppercase;
  color:var(--amber);margin:9px 0 12px;text-shadow:3px 3px 0 var(--pink);
}
.intro-text{font-size:12.8px;line-height:1.75;color:var(--dim)}
.intro-text p{margin:0 0 10px}
.intro-text b{color:var(--ink)}
.intro-text .k{
  font-family:var(--crt);font-size:15px;letter-spacing:.5px;color:var(--amber);
  background:var(--sunk);border:1px solid var(--line);padding:0 5px;
}
/* the step content, not the card, is what cross-fades when you page through */
.intro-fade{animation:introFade .32s ease-out both}
@keyframes introFade{from{opacity:0;transform:translateX(10px)}to{opacity:1;transform:none}}
.intro-foot{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  padding:14px 22px 18px;border-top:1px solid var(--line);margin-top:14px;
}
.dots{display:flex;gap:7px}
.dots i{width:9px;height:9px;background:var(--line2);display:block}
.dots i.on{background:var(--amber);box-shadow:2px 2px 0 var(--pink)}
.intro-btns{display:flex;gap:8px;margin-left:auto}

@media (prefers-reduced-motion:reduce){
  .intro-card,.intro-fade{animation:none}
  .tour-arrow{animation:none}
  .tour-spot{transition:none}
}

/* ---------- operator ------------------------------------------------------ */
/* The sprite sheet's own backdrop is #0b0914-ish, so the stage carries that
   colour and the crop reads as a framed portrait rather than a pasted cut-out. */
.hero-stage{
  position:relative;height:200px;overflow:hidden;
  display:flex;align-items:flex-end;justify-content:center;
  /* Flat, and exactly the sprite sheet's own backdrop (sampled #090712), so
     the crop has no visible edge. Any gradient here draws a seam around it. */
  background:#090712;
}
/* Sized by height in px, not percentages: both poses then scale to the same
   standing height and swap without the box jumping. */
.hero-float{display:flex;align-items:flex-end}
.hero-sprite{height:186px;width:auto;display:block;transform-origin:50% 100%}

/* One state class on the stage drives the whole card. The entrance lives on
   the stage so returning to idle does not replay it. */
.hero-stage{animation:heroIn .55s cubic-bezier(.2,.9,.3,1.25) both}
.hero-stage.is-idle .hero-float{animation:heroBob 3.6s ease-in-out infinite}
.hero-stage.is-typing .hero-sprite{animation:heroTap .34s ease-in-out infinite}
.hero-stage.is-waiting .hero-float{animation:heroWait 1.9s ease-in-out infinite}
.hero-stage.is-done .hero-sprite{animation:heroHit .7s cubic-bezier(.25,.8,.3,1)}
/* blue while Nimbo is thinking, amber when something lands */
.hero-stage.is-waiting::after{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(210px 125px at 50% 70%,rgba(143,205,255,.30),transparent 72%);
  animation:waitGlow 1.9s ease-in-out infinite;
}
@keyframes heroTap{0%,100%{transform:translateY(0)}50%{transform:translateY(-3px)}}
@keyframes heroWait{0%,100%{transform:translateY(0);opacity:1}50%{transform:translateY(-2px);opacity:.84}}
@keyframes waitGlow{0%,100%{opacity:.45}50%{opacity:1}}
/* an ellipsis that actually ticks, for the waiting caption */
.ell::after{content:'';animation:ell 1.3s steps(1,end) infinite}
@keyframes ell{0%{content:''}25%{content:'.'}50%{content:'..'}75%{content:'...'}}
.hero-flash{
  position:absolute;inset:0;pointer-events:none;opacity:0;
  background:radial-gradient(220px 130px at 50% 70%,rgba(255,208,77,.38),transparent 72%);
}
.hero-flash.on{animation:heroFlash 1.2s ease-out}
@keyframes heroIn{from{opacity:0;transform:translateY(18px) scale(.95)}to{opacity:1;transform:none}}
@keyframes heroBob{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}
@keyframes heroHit{
  0%{transform:translateY(0) scale(1) rotate(0)}
  18%{transform:translateY(-11px) scale(1.07) rotate(-3deg)}
  44%{transform:translateY(3px) scale(.985) rotate(2deg)}
  72%{transform:translateY(-3px) scale(1.02) rotate(-1deg)}
  100%{transform:none}
}
@keyframes heroFlash{0%{opacity:0}14%{opacity:1}100%{opacity:0}}

/* The aftermath panel: vault doors open, the guards down, him on the rubble. */
.win-scene{
  display:block;width:100%;height:auto;margin:0 0 16px;
  border:1px solid var(--line);
  animation:winScene .75s cubic-bezier(.2,.9,.3,1.1) both;
}
@keyframes winScene{from{opacity:0;transform:scale(.93) translateY(-12px)}to{opacity:1;transform:none}}

@media (prefers-reduced-motion:reduce){
  .hero-stage,.hero-float,.hero-sprite,.win-scene,
  .hero-stage.is-idle .hero-float,.hero-stage.is-typing .hero-sprite,
  .hero-stage.is-waiting .hero-float,.hero-stage.is-waiting::after,
  .hero-stage.is-done .hero-sprite,.ell::after{animation:none}
  .hero-flash{display:none}
}

/* ---------- celebration --------------------------------------------------- */
.overlay{
  position:fixed;inset:0;z-index:20;display:grid;place-items:center;padding:24px;
  background:rgba(8,4,16,.82);backdrop-filter:blur(3px);
}
/* the author display:grid above outranks the UA stylesheet's [hidden]{display:none} */
.overlay[hidden]{display:none}
.confetti{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.confetti i{position:absolute;top:-24px;animation:fall linear infinite}
@keyframes fall{
  from{transform:translateY(-10vh) rotate(0deg)}
  to{transform:translateY(112vh) rotate(540deg)}
}
.win-card{
  position:relative;width:min(560px,100%);max-height:88vh;overflow:auto;
  background:var(--panel);border:2px solid var(--amber);
  box-shadow:10px 10px 0 var(--pink),0 0 50px rgba(255,208,77,.18);
  padding:26px 26px 22px;text-align:center;
}
.win-kicker{font-family:var(--crt);font-size:17px;letter-spacing:2px;text-transform:uppercase;color:var(--mint)}
.win-title{
  font-family:var(--pix);font-size:27px;line-height:1.25;letter-spacing:2px;text-transform:uppercase;
  color:var(--amber);margin:12px 0 10px;text-shadow:4px 4px 0 var(--pink);
}
.win-sub{margin:0 0 18px;font-size:12.5px;color:var(--dim);line-height:1.7}
.win-list{list-style:none;margin:0 0 18px;padding:0;display:grid;gap:7px;text-align:left}
.win-list li{
  display:flex;align-items:center;gap:9px;background:#160e28;border:1px solid var(--line);
  padding:9px 11px;font-family:var(--crt);font-size:17px;letter-spacing:1.2px;color:var(--ink);
}
.win-list .tech-id{background:var(--mint)}
.win-list li::after{content:'✔';margin-left:auto;font-family:var(--mono);font-size:13px;color:var(--mint)}
.win-note{
  margin:0 0 20px;padding:12px;border:1px dashed var(--line2);background:var(--sunk);
  font-size:12px;color:var(--dim);line-height:1.7;text-align:left;
}
.win-btns{display:flex;gap:9px;justify-content:center}
.win-btns button{min-width:150px}
@media (prefers-reduced-motion:reduce){.confetti{display:none}}

/* ---------- footer -------------------------------------------------------- */
.foot{
  display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;
  padding:16px 20px 20px;font-size:11.5px;color:var(--faint);text-align:center;
}
.saltmark{font-family:var(--crt);font-size:16px;line-height:1;letter-spacing:1.4px;color:var(--amber);border:1px solid var(--line2);padding:6px 9px 3px}

/* ---------- narrow -------------------------------------------------------- */
@media (max-width:1180px){
  .grid{grid-template-columns:1fr}
  .col{max-height:none;overflow:visible}
  .chatpanel{height:70vh}
}

/* Control row: four direct attempts, all refused at the guardrail. */
.ctrl-row{display:flex;flex-wrap:wrap;gap:6px}
.ctrl-row .ctrl{flex:1 1 auto;min-width:calc(50% - 3px);text-align:center}

/* Hint and solution stay folded away until asked for, so a reader can try
   the technique themselves before the answer is handed to them. */
.foldbtn{display:block;width:100%;margin:10px 0 0;padding:8px 10px;
  background:transparent;color:var(--ink-dim,#9aa3b2);
  border:1px dashed rgba(255,255,255,.22);border-radius:8px;
  font:inherit;font-size:12px;letter-spacing:.02em;cursor:pointer}
.foldbtn:hover{color:#fff;border-color:rgba(255,255,255,.45);background:rgba(255,255,255,.04)}
.brief[hidden],.solution[hidden]{display:none!important}