/* ═══════════════════════════════════════════════════════════════
   TechBiz Academy — Lab terminal
   Parrot-inspired dark security-distro aesthetic: near-black base,
   cyan/green phosphor text, scanlines, and a skull watermark behind
   the output. Original artwork/colours — no third-party marks used.
   ═══════════════════════════════════════════════════════════════ */

:root{
  --lab-bg:#05080a;
  --lab-bg2:#0a1014;
  --lab-cy:#15e0c0;
  --lab-gn:#5cff8f;
  --lab-dim:#5f7d86;
  --lab-txt:#c9f2e6;
  --lab-red:#ff5f6d;
  --lab-amb:#ffc857;
  --lab-line:#12242a;
}

/* ---------- header / progress ---------- */
.lab-head{display:flex;justify-content:space-between;align-items:flex-end;gap:1rem;flex-wrap:wrap;margin-bottom:1rem}
.lab-progress{min-width:200px}
.lab-progress>span{display:block;font-size:.78rem;color:var(--lab-cy);margin-bottom:.3rem;text-align:right;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.5px}
.lab-bar{height:8px;background:#0c161a;border:1px solid var(--lab-line);border-radius:99px;overflow:hidden}
.lab-bar>span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--lab-cy),var(--lab-gn));
  transition:width .4s ease;box-shadow:0 0 14px rgba(21,224,192,.65)}

.lab-grid{display:grid;grid-template-columns:1fr 330px;gap:1.3rem;align-items:start}
@media(max-width:980px){.lab-grid{grid-template-columns:1fr}}

/* ---------- terminal shell ---------- */
.lab-term{
  position:relative;background:var(--lab-bg);border:1px solid #14343a;border-radius:12px;overflow:hidden;
  display:flex;flex-direction:column;height:600px;
  box-shadow:0 0 0 1px rgba(21,224,192,.09), 0 18px 60px rgba(0,0,0,.65), inset 0 0 90px rgba(21,224,192,.035);
}
.lab-term.is-fs{position:fixed;inset:0;z-index:9999;height:100vh;width:100vw;border-radius:0;border:0}

/* skull watermark — pure CSS mask over an inline SVG data URI */
.lab-term::before{
  content:'';position:absolute;left:50%;top:52%;transform:translate(-50%,-50%);
  width:min(62%,520px);aspect-ratio:1;pointer-events:none;z-index:0;opacity:.055;
  background:var(--lab-cy);
  -webkit-mask:var(--skull) center/contain no-repeat; mask:var(--skull) center/contain no-repeat;
}
/* scanlines */
.lab-term::after{
  content:'';position:absolute;inset:0;pointer-events:none;z-index:2;
  background:repeating-linear-gradient(180deg,rgba(255,255,255,.018) 0 1px,transparent 1px 3px);
}

.lab-term__bar{
  position:relative;z-index:3;display:flex;align-items:center;gap:.45rem;padding:.55rem .85rem;
  background:linear-gradient(180deg,#0d1a1f,#0a1418);border-bottom:1px solid #14343a;flex:0 0 auto
}
.lab-dot{width:11px;height:11px;border-radius:50%}
.lab-dot--r{background:#ff5f57}.lab-dot--y{background:#febc2e}.lab-dot--g{background:#28c840}
.lab-term__title{margin-left:.6rem;font-size:.76rem;color:var(--lab-dim);letter-spacing:.6px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.lab-term__tools{margin-left:auto;display:flex;gap:.4rem}
.lab-iconbtn{background:#0e1c21;border:1px solid #17383f;color:var(--lab-cy);border-radius:6px;
  width:28px;height:24px;display:grid;place-items:center;cursor:pointer;font-size:.72rem;transition:.15s}
.lab-iconbtn:hover{background:#142c33;box-shadow:0 0 10px rgba(21,224,192,.35)}

.lab-out{
  position:relative;z-index:1;flex:1 1 auto;overflow-y:auto;padding:.9rem 1.05rem;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.82rem;line-height:1.6;
  color:var(--lab-txt);text-shadow:0 0 6px rgba(21,224,192,.14);
}
.lab-out::-webkit-scrollbar{width:9px}
.lab-out::-webkit-scrollbar-track{background:#070d0f}
.lab-out::-webkit-scrollbar-thumb{background:#17383f;border-radius:9px}
.lab-line{white-space:pre-wrap;word-break:break-word}
.lab-line--echo{color:var(--lab-gn);text-shadow:0 0 8px rgba(92,255,143,.35)}
.lab-line--ok  {color:var(--lab-gn);font-weight:600;text-shadow:0 0 10px rgba(92,255,143,.4)}
.lab-line--bad {color:var(--lab-red);font-weight:600}
.lab-line--warn{color:var(--lab-amb)}
.lab-line--dim {color:var(--lab-dim)}
.lab-line--head{color:var(--lab-cy);font-weight:700;letter-spacing:.6px}

.lab-in{position:relative;z-index:3;display:flex;align-items:center;gap:.5rem;padding:.55rem 1.05rem;
  border-top:1px solid #14343a;background:#081216;flex:0 0 auto}
.lab-in>span{color:var(--lab-gn);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.82rem;white-space:nowrap;text-shadow:0 0 8px rgba(92,255,143,.4)}
.lab-in input{flex:1;background:transparent;border:0;outline:0;color:var(--lab-txt);caret-color:var(--lab-cy);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.82rem;padding:.2rem 0}

/* ---------- side panels ---------- */
.lab-side .card{background:var(--lab-bg2);border:1px solid #14343a}
.lab-side h2{color:var(--lab-cy);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  letter-spacing:.5px;font-size:.88rem !important}

.lab-obj{list-style:none;margin:0;padding:0;font-size:.85rem}
.lab-obj li{display:flex;gap:.5rem;align-items:flex-start;padding:.4rem 0;border-bottom:1px solid var(--lab-line);color:var(--lab-dim)}
.lab-obj li:last-child{border-bottom:0}
.lab-obj li i{margin-top:.18rem;font-size:.82rem}
.lab-obj li.is-done{color:var(--lab-txt)}
.lab-obj li.is-done i{color:var(--lab-gn)}

.lab-qs{list-style:none;margin:0;padding:0}
.lab-qs li{padding:.55rem 0;border-bottom:1px solid var(--lab-line)}
.lab-qs li:last-child{border-bottom:0}
.lab-q__head{display:flex;justify-content:space-between;align-items:center}
.lab-q__id{font-family:ui-monospace,monospace;font-size:.72rem;color:var(--lab-cy);
  background:#0d2229;border:1px solid #17383f;border-radius:4px;padding:.05rem .35rem}
.lab-q__head i{font-size:.8rem;color:var(--lab-dim)}
.lab-qs li.is-done .lab-q__head i{color:var(--lab-gn)}
.lab-q__text{font-size:.83rem;color:var(--lab-txt);margin:.3rem 0 .25rem;line-height:1.4}
.lab-q__mask{font-family:ui-monospace,monospace;font-size:.82rem;color:var(--lab-amb);letter-spacing:2px}
.lab-q__len{color:var(--lab-dim);letter-spacing:0;font-size:.72rem}
.lab-q__ok{color:var(--lab-gn);letter-spacing:0}

/* ---------- lab index cards ---------- */
.lab-card{position:relative}
.lab-card.is-locked{opacity:.55}
.lab-card.is-locked .btn{pointer-events:none;filter:grayscale(1)}
.lab-num{font-family:ui-monospace,monospace;font-size:.72rem;color:var(--lab-cy);
  background:#0d2229;border:1px solid #17383f;border-radius:4px;padding:.08rem .4rem;margin-right:.35rem}
.lab-done-tag{color:#5cff8f;font-size:.75rem;font-weight:700}

@media(max-width:600px){
  .lab-term{height:70vh}
  .lab-out{font-size:.76rem}
}

/* ---------- answer inputs (TryHackMe-style) ---------- */
.lab-q__form{display:flex;gap:.4rem;margin-top:.45rem}
.lab-q__form[hidden]{display:none}
.lab-q__in{
  flex:1;min-width:0;background:#071013;border:1px solid #17383f;border-radius:6px;
  color:var(--lab-txt);padding:.4rem .55rem;font-size:.82rem;outline:none;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.lab-q__in:focus{border-color:var(--lab-cy);box-shadow:0 0 0 2px rgba(21,224,192,.15)}
.lab-q__in::placeholder{color:#4c6672}
.lab-q__btn{
  background:linear-gradient(135deg,var(--lab-cy),#0fb89e);border:0;border-radius:6px;
  color:#04130c;font-weight:700;font-size:.78rem;padding:.4rem .7rem;cursor:pointer;
  letter-spacing:.3px;transition:.15s;white-space:nowrap;
}
.lab-q__btn:hover{filter:brightness(1.12);box-shadow:0 0 12px rgba(21,224,192,.45)}
.lab-q__btn:active{transform:translateY(1px)}
.lab-q__fb{font-size:.76rem;margin-top:.3rem;min-height:0}
.lab-q__fb--ok{color:var(--lab-gn)}
.lab-q__fb--bad{color:var(--lab-red)}
.lab-qs li.is-done{opacity:.85}