/* =========================================================
   SHARED TOOL COMPONENTS (prefix tl-), used by:
   load-factor, ground-effect, cloud-base, atis-trainer, light-signals.
   Load AFTER style.css + kb.css. Uses the shared design tokens.
   Tool-specific parts follow further down, one section per tool.
   ========================================================= */

.tl-hero-blob{ width:380px; height:380px; top:-80px; left:8%; }
.tl-main{ padding-top:3rem; }

/* ---------- Quick start strip ---------- */
.tl-quickstart{ display:grid; grid-template-columns:repeat(4,1fr); gap:1rem; margin-bottom:1.75rem; }
.tl-quickstart.tl-qs-3{ grid-template-columns:repeat(3,1fr); }
.tl-qs-step{
  display:flex; gap:.8rem; align-items:flex-start; padding:1rem 1.1rem;
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-md);
  font-size:.86rem; color:var(--sub); line-height:1.5; box-shadow:var(--shadow-sm);
}
.tl-qs-step strong{ color:var(--ink); }
.tl-qs-num{
  flex:none; width:1.7rem; height:1.7rem; border-radius:50%; display:grid; place-items:center;
  font-family:'Space Mono',monospace; font-size:.75rem; font-weight:700; background:var(--navy); color:#fff;
}
@media (max-width:1100px){ .tl-quickstart, .tl-quickstart.tl-qs-3{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .tl-quickstart, .tl-quickstart.tl-qs-3{ grid-template-columns:1fr; } }

/* ---------- Layout ---------- */
.tl-layout{ display:grid; grid-template-columns:minmax(0,1.4fr) minmax(0,1fr); gap:1.75rem; align-items:start; }
.tl-layout-even{ grid-template-columns:minmax(0,1fr) minmax(0,1fr); }
@media (max-width:1180px){ .tl-layout, .tl-layout-even{ grid-template-columns:minmax(0,1fr); } }
.tl-col{ display:flex; flex-direction:column; min-width:0; }
.tl-main .tool-panel{ padding:1.6rem; }
@media (max-width:700px){ .tl-main .tool-panel{ padding:1.2rem; } }
.tl-panel-head{ display:flex; align-items:center; gap:.8rem; margin-bottom:1.1rem; flex-wrap:wrap; }
.tl-panel-head h2, .tl-panel-head h3{ margin:0 auto 0 0; }

/* ---------- Help popovers (plain <details>) ---------- */
.tl-help{ position:relative; }
.tl-help > summary{
  list-style:none; cursor:pointer; width:1.9rem; height:1.9rem; border-radius:50%;
  display:grid; place-items:center; font-family:'Space Mono',monospace; font-weight:700; font-size:.85rem;
  color:var(--cyan-deep); background:var(--bg-alt); border:1.5px solid var(--line);
}
.tl-help > summary::-webkit-details-marker{ display:none; }
.tl-help > summary:hover, .tl-help[open] > summary{ border-color:var(--cyan); color:var(--navy); }
.tl-help > summary:focus-visible{ outline:2px solid var(--cyan); outline-offset:2px; }
.tl-help-body{
  position:absolute; right:0; top:calc(100% + .6rem); z-index:30; width:min(380px, 80vw);
  background:var(--surface); border:1px solid var(--line); border-left:4px solid var(--cyan);
  border-radius:var(--radius-sm); padding:1rem 1.1rem; box-shadow:var(--shadow-md);
  font-size:.85rem; color:var(--sub); line-height:1.6;
}
.tl-help-body p + p{ margin-top:.6rem; }
.tl-help-body strong{ color:var(--navy); }

/* ---------- Buttons ---------- */
.tl-btn{
  padding:.55rem .9rem; background:var(--bg-alt); border:1.5px solid var(--line); border-radius:var(--radius-sm);
  color:var(--sub); font-family:'Inter',sans-serif; font-weight:700; font-size:.8rem; cursor:pointer;
  transition:border-color .2s ease, color .2s ease, background .2s ease; line-height:1.2;
}
.tl-btn:hover{ border-color:var(--navy); color:var(--navy); }
.tl-btn:disabled{ opacity:.45; cursor:not-allowed; }
.tl-btn:disabled:hover{ border-color:var(--line); color:var(--sub); }
.tl-btn-strong{ background:var(--navy); border-color:var(--navy); color:#fff; }
.tl-btn-strong:hover{ background:var(--navy-dark); color:#fff; }
.tl-btn-amber{ background:var(--amber); border-color:var(--amber); color:#fff; }
.tl-btn-amber:hover{ background:#e85a26; border-color:#e85a26; color:#fff; }
.tl-btn:focus-visible, .tl-tab:focus-visible, .tl-choice:focus-visible, .tl-seg-btn:focus-visible, .tl-chip:focus-visible{ outline:2px solid var(--cyan); outline-offset:2px; }
.tl-row{ display:flex; gap:.5rem; flex-wrap:wrap; align-items:center; }
.tl-grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:.45rem; }
.tl-grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:.45rem; }
.tl-grid-4{ display:grid; grid-template-columns:repeat(4,1fr); gap:.45rem; }
.tl-mt{ margin-top:.7rem; }

/* segmented control */
.tl-seg{ display:inline-flex; flex-wrap:wrap; background:var(--bg-alt); border:1px solid var(--line); border-radius:var(--radius-pill); padding:3px; gap:2px; }
.tl-seg-btn{
  border:none; background:none; padding:.4rem .85rem; border-radius:var(--radius-pill);
  font-family:'Space Mono',monospace; font-size:.7rem; font-weight:700; color:var(--sub); cursor:pointer;
}
.tl-seg-btn.active{ background:var(--navy); color:#fff; }

/* chips (preset buttons) */
.tl-chips{ display:flex; flex-wrap:wrap; gap:.4rem; }
.tl-chip{
  padding:.4rem .75rem; border-radius:var(--radius-pill); border:1px solid var(--line); background:#fff;
  font-size:.76rem; font-weight:700; color:var(--sub); cursor:pointer; font-family:'Inter',sans-serif;
}
.tl-chip:hover{ border-color:var(--cyan); color:var(--navy); }
.tl-chip.active{ background:var(--navy); border-color:var(--navy); color:#fff; }

.tl-inline-select{ display:flex; align-items:center; gap:.5rem; margin:0; font-size:.78rem; font-weight:600; color:var(--sub); }
.tl-inline-select select{ width:auto; padding:.45rem .7rem; font-size:.8rem; }

/* number input next to a slider */
.tl-num{ width:5.2rem !important; padding:.35rem .5rem !important; font-family:'Space Mono',monospace !important; font-size:.85rem !important; text-align:right; }
input[type="number"].tl-num::-webkit-inner-spin-button{ opacity:1; }

/* ---------- Readouts ---------- */
.tl-readouts{ display:grid; grid-template-columns:repeat(4,1fr); gap:.5rem; }
.tl-readouts.tl-ro-3{ grid-template-columns:repeat(3,1fr); }
.tl-readouts.tl-ro-2{ grid-template-columns:repeat(2,1fr); }
@media (max-width:560px){ .tl-readouts, .tl-readouts.tl-ro-3{ grid-template-columns:repeat(2,1fr); } }
.tl-ro{ background:var(--bg-alt); border:1px solid var(--line); border-radius:var(--radius-sm); padding:.6rem .7rem; min-width:0; }
.tl-ro-l{ display:block; font-family:'Space Mono',monospace; font-size:.58rem; text-transform:uppercase; letter-spacing:.06em; color:var(--sub-soft); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.tl-ro-v{ display:block; font-family:'Space Mono',monospace; font-size:1.02rem; font-weight:700; color:var(--navy); white-space:nowrap; }
.tl-ro-big .tl-ro-v{ font-size:1.5rem; }
.tl-ro-v.is-good{ color:var(--success); }
.tl-ro-v.is-warn{ color:var(--amber); }
.tl-ro-v.is-bad{ color:var(--danger); }

/* status banner */
.tl-status{ padding:.8rem 1rem; border-radius:var(--radius-sm); font-weight:700; font-size:.88rem; border:1.5px solid; margin-top:1rem; }
.tl-status.is-good{ background:#ecfdf5; color:var(--success); border-color:#a7f3d0; }
.tl-status.is-warn{ background:#fff7ed; color:#c2410c; border-color:#fed7aa; }
.tl-status.is-bad{ background:var(--danger-bg); color:var(--danger); border-color:#fecaca; }
.tl-status.is-info{ background:var(--bg-alt); color:var(--navy); border-color:var(--line); }

/* dark instrument well (canvas background) */
.tl-well{ background:linear-gradient(160deg,#0f1b2a,#071019); border-radius:var(--radius-md); padding:1.1rem; border:1px solid #1d2c3d; }
canvas.tl-canvas{ display:block; width:100%; height:auto; margin:0; background:transparent; border:none; border-radius:0; }
canvas.tl-canvas-light{ display:block; width:100%; height:auto; margin:0; background:#f4f8fb; border:1.5px solid var(--line); border-radius:var(--radius-md); }

/* ---------- Tabs ---------- */
.tl-tabs{ display:grid; grid-template-columns:repeat(auto-fit,minmax(170px,1fr)); gap:.6rem; margin-bottom:1.4rem; }
.tl-tab{
  display:flex; flex-direction:column; align-items:flex-start; gap:.2rem; text-align:left;
  padding:.8rem 1rem; background:var(--bg-alt); border:1.5px solid var(--line); border-radius:var(--radius-sm);
  font-family:'Inter',sans-serif; font-size:.88rem; font-weight:700; color:var(--sub); cursor:pointer;
}
.tl-tab:hover{ border-color:var(--navy); color:var(--navy); }
.tl-tab.active{ background:var(--navy); border-color:var(--navy); color:#fff; }
.tl-tab-num{ font-family:'Space Mono',monospace; font-size:.65rem; letter-spacing:.1em; opacity:.7; }
.tl-intro{ color:var(--sub); font-size:.92rem; margin-bottom:1.1rem; max-width:780px; }
.tl-intro strong{ color:var(--ink); }

/* ---------- Quiz ---------- */
.tl-quiz-bar{ display:flex; align-items:center; gap:.75rem; flex-wrap:wrap; margin-bottom:1rem; }
.tl-cta{ padding:.8rem 1.4rem; font-size:.85rem; }
.tl-score{ margin-left:auto; font-family:'Space Mono',monospace; font-size:.8rem; color:var(--sub); }
.tl-score strong{ color:var(--navy); font-size:1rem; margin-left:.35rem; }
.tl-question{ font-family:'Sora',sans-serif; font-size:1.1rem; font-weight:700; color:var(--ink); margin-bottom:1rem; }
.tl-choices{ display:grid; grid-template-columns:1fr 1fr; gap:.6rem; margin-bottom:1rem; }
@media (max-width:640px){ .tl-choices{ grid-template-columns:1fr; } }
.tl-choice{
  padding:.85rem 1rem; background:#fff; border:1.5px solid var(--line); border-radius:var(--radius-sm);
  font-family:'Inter',sans-serif; font-size:.88rem; font-weight:600; color:var(--ink); cursor:pointer; text-align:left; line-height:1.4;
}
.tl-choice:hover:not(:disabled){ border-color:var(--navy); }
.tl-choice:disabled{ cursor:default; opacity:.6; }
.tl-choice.is-correct{ border-color:var(--success); background:#ecfdf5; color:var(--success); opacity:1; }
.tl-choice.is-wrong{ border-color:var(--danger); background:var(--danger-bg); color:var(--danger); opacity:1; }

.tl-feedback:empty{ display:none; }
.tl-feedback{ padding:1rem 1.2rem; border-radius:var(--radius-sm); border-left:4px solid var(--cyan); background:var(--bg-alt); font-size:.9rem; color:var(--sub); line-height:1.6; }
.tl-feedback p + p{ margin-top:.45rem; }
.tl-feedback .tl-fb-title{ font-weight:800; color:var(--ink); }
.tl-feedback.is-good{ border-left-color:var(--success); background:#ecfdf5; }
.tl-feedback.is-good .tl-fb-title{ color:var(--success); }
.tl-feedback.is-bad{ border-left-color:var(--danger); background:var(--danger-bg); }
.tl-feedback.is-bad .tl-fb-title{ color:var(--danger); }

/* analysis lines (coach) */
.tl-lines{ display:grid; gap:.55rem; }
.tl-line{
  display:flex; gap:.8rem; align-items:flex-start; padding:.7rem 1rem;
  background:var(--bg-alt); border-radius:var(--radius-sm); border-left:4px solid var(--cyan);
  font-size:.9rem; color:var(--sub); line-height:1.55;
}
.tl-line.is-good{ border-left-color:var(--success); background:#ecfdf5; }
.tl-line.is-warn{ border-left-color:var(--amber); background:#fff7ed; }
.tl-line.is-bad{ border-left-color:var(--danger); background:var(--danger-bg); }
.tl-line-tag{ flex:none; font-family:'Space Mono',monospace; font-size:.66rem; font-weight:700; letter-spacing:.08em; text-transform:uppercase; color:var(--navy); min-width:4.6rem; padding-top:.15rem; }

/* dark brief box */
.tl-brief{
  background:#0b1420; color:#8ee9f7; font-family:'Space Mono',monospace; font-size:.84rem; line-height:1.8;
  padding:1rem 1.2rem; border-radius:var(--radius-sm); border:1px solid rgba(32,196,227,.3);
}
.tl-brief .tl-brief-tag{ color:var(--cyan); font-weight:700; }

/* ---------- Ground school ---------- */
.tl-guide h2{ font-size:1.5rem; margin-bottom:1.3rem; }
.tl-guide h3{ margin-top:2rem; }
.tl-guide-grid{ display:grid; grid-template-columns:1fr 1fr; gap:.8rem; }
@media (max-width:800px){ .tl-guide-grid{ grid-template-columns:1fr; } }
.tl-acc{ border:1px solid var(--line); border-radius:var(--radius-sm); background:#fff; }
.tl-acc > summary{
  cursor:pointer; padding:.9rem 1.1rem; font-weight:700; color:var(--navy); font-size:.95rem;
  list-style:none; display:flex; justify-content:space-between; align-items:center; gap:1rem;
}
.tl-acc > summary::-webkit-details-marker{ display:none; }
.tl-acc > summary::after{ content:"+"; font-family:'Space Mono',monospace; color:var(--cyan-deep); font-size:1.1rem; }
.tl-acc[open] > summary::after{ content:"−"; }
.tl-acc > summary:focus-visible{ outline:2px solid var(--cyan); outline-offset:2px; }
.tl-acc-body{ padding:0 1.1rem 1rem; font-size:.88rem; color:var(--sub); line-height:1.65; }
.tl-acc-body p + p{ margin-top:.55rem; }
.tl-acc-body strong{ color:var(--ink); }
.tl-ref-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:.6rem; }
@media (max-width:800px){ .tl-ref-grid{ grid-template-columns:1fr; } }
.tl-ref{ display:flex; flex-direction:column; gap:.2rem; padding:.8rem 1rem; background:var(--bg-alt); border:1px solid var(--line); border-radius:var(--radius-sm); }
.tl-ref-k{ font-family:'Space Mono',monospace; font-size:.62rem; letter-spacing:.08em; text-transform:uppercase; color:var(--sub-soft); }
.tl-ref-v{ font-family:'Space Mono',monospace; font-size:.85rem; font-weight:700; color:var(--navy); }

/* formula box */
.tl-formula{ font-family:'Space Mono',monospace; font-size:.86rem; background:var(--bg-alt); border-left:4px solid var(--cyan); padding:.9rem 1.1rem; border-radius:var(--radius-sm); color:var(--ink); line-height:1.9; }

/* responsive table → cards on phones */
.tl-table-wrap{ border:1px solid var(--line); border-radius:var(--radius-md); overflow:hidden; }
.tl-table{ width:100%; border-collapse:collapse; font-size:.87rem; }
.tl-table th, .tl-table td{ padding:.75rem 1rem; text-align:left; border-bottom:1px solid var(--line-soft); vertical-align:top; color:var(--sub); }
.tl-table thead th{ background:var(--navy); color:#fff; font-family:'Space Mono',monospace; font-size:.7rem; letter-spacing:.08em; text-transform:uppercase; }
.tl-table tbody th{ color:var(--ink); font-weight:700; background:var(--bg-alt); }
.tl-table tbody tr:last-child th, .tl-table tbody tr:last-child td{ border-bottom:none; }
@media (max-width:640px){
  .tl-table-wrap{ border:none; }
  .tl-table, .tl-table tbody, .tl-table tr, .tl-table th, .tl-table td{ display:block; width:100%; }
  .tl-table thead{ display:none; }
  .tl-table tr{ border:1px solid var(--line); border-radius:var(--radius-sm); margin-bottom:.6rem; overflow:hidden; }
  .tl-table td{ display:flex; gap:.8rem; padding:.55rem 1rem; }
  .tl-table td::before{ content:attr(data-label); flex:none; width:6.5rem; font-family:'Space Mono',monospace; font-size:.66rem; font-weight:700; text-transform:uppercase; letter-spacing:.05em; color:var(--sub-soft); padding-top:.15rem; }
}

@media (prefers-reduced-motion:reduce){ .tl-anim{ animation:none !important; transition:none !important; } }
@media print{
  .tl-quickstart, .tl-train, .tl-controls{ display:none !important; }
  .tl-acc-body{ display:block !important; }
}

/* =========================================================
   LOAD FACTOR (load-factor.html)
   ========================================================= */
.lf-scene-wrap{ display:grid; grid-template-columns:minmax(0,1.7fr) minmax(0,1fr); gap:1rem; align-items:center; }
@media (max-width:640px){ .lf-scene-wrap{ grid-template-columns:1fr; } .lf-gauge{ max-width:260px; margin:0 auto !important; } }
.lf-challenges{ display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:.7rem; }
.lf-ch{ border:1.5px solid var(--line); border-radius:var(--radius-sm); padding:.9rem 1rem; background:#fff; transition:border-color .3s ease, background .3s ease; }
.lf-ch p{ font-size:.84rem; color:var(--sub); margin-top:.4rem; line-height:1.5; }
.lf-ch-head{ display:flex; align-items:center; gap:.5rem; }
.lf-ch-head strong{ font-size:.9rem; color:var(--ink); }
.lf-ch-n{ font-family:'Space Mono',monospace; font-size:.7rem; font-weight:700; color:var(--navy); }
.lf-ch-badge{ margin-left:auto; font-family:'Space Mono',monospace; font-size:.62rem; font-weight:700; text-transform:uppercase; letter-spacing:.06em; padding:.15rem .5rem; border-radius:var(--radius-pill); background:var(--bg-alt); color:var(--sub-soft); }
.lf-ch.is-done{ border-color:#a7f3d0; background:#ecfdf5; }
.lf-ch.is-done .lf-ch-badge{ background:var(--success); color:#fff; }

/* =========================================================
   CLOUD BASE (cloud-base.html)
   ========================================================= */
#cbQ{ white-space:pre-line; }
.cb-answer{ width:8rem !important; }
.cb-unit{ font-family:'Space Mono',monospace; font-weight:700; color:var(--navy); margin-right:.4rem; }
#cbMetar{ min-height:70px; font-size:.82rem; }

/* =========================================================
   ATIS TRAINER (atis-trainer.html)
   ========================================================= */
.at-radio{ background:#0b1420; border-radius:var(--radius-md); border:1px solid rgba(32,196,227,.3); padding:1.1rem 1.2rem; color:#8ee9f7; }
.at-radio-head{ display:flex; align-items:center; gap:.8rem; border-bottom:1px dashed rgba(142,233,247,.25); padding-bottom:.7rem; margin-bottom:.9rem; }
.at-radio-id{ font-family:'Space Mono',monospace; font-weight:700; color:#fff; letter-spacing:.1em; }
.at-radio-name{ font-family:'Space Mono',monospace; font-size:.78rem; color:#7fa3bd; margin-right:auto; }
.at-letter{ width:2.4rem; height:2.4rem; border-radius:8px; display:grid; place-items:center; background:var(--amber); color:#fff; font-family:'Space Mono',monospace; font-weight:700; font-size:1.3rem; }
.at-text{ font-family:'Space Mono',monospace; font-size:.9rem; line-height:1.85; color:#dff7fb; min-height:9rem; }
.at-seg{ display:inline; }
.at-hidden{ min-height:9rem; display:grid; place-items:center; text-align:center; font-family:'Space Mono',monospace; font-size:.85rem; color:#7fa3bd; border:1px dashed rgba(142,233,247,.25); border-radius:var(--radius-sm); }
.at-controls{ display:flex; flex-wrap:wrap; align-items:center; gap:.6rem; margin-top:1rem; }
.at-inline{ color:#9fb6c8; }
.at-inline select{ background:#12202f; color:#fff; border-color:#27405a; }
.at-loop{ display:inline-flex; align-items:center; gap:.4rem; margin:0; font-size:.78rem; font-weight:600; color:#9fb6c8; cursor:pointer; }
.at-loop input{ accent-color:var(--cyan); }
.at-radio .tl-btn:not(.tl-btn-amber){ background:#12202f; border-color:#27405a; color:#dff7fb; }
.at-radio .tl-btn:not(.tl-btn-amber):hover{ border-color:var(--cyan); color:#fff; }
.at-voice-note{ font-size:.76rem; color:#7fa3bd; margin-top:.7rem; }
.at-gen{ width:100%; justify-content:center; }
.at-template{ font-size:.78rem; line-height:1.9; }
.at-template .tl-brief-tag{ display:inline-block; min-width:3.2rem; }

.at-sheet{ display:grid; grid-template-columns:repeat(auto-fill,minmax(220px,1fr)); gap:.8rem 1rem; }
.at-field{ display:flex; flex-direction:column; gap:.35rem; margin:0; font-size:.8rem; font-weight:700; color:var(--ink); }
.at-field input, .at-field select{ font-family:'Space Mono',monospace; font-size:.9rem; padding:.6rem .75rem; }
.at-pair{ display:grid; grid-template-columns:1fr 1fr; gap:.4rem; }
.at-res{ font-style:normal; font-family:'Space Mono',monospace; font-size:.72rem; min-height:1em; }
.at-res.is-ok{ color:var(--success); }
.at-res.is-bad{ color:var(--danger); }
.at-sheet-actions{ display:flex; gap:.6rem; align-items:flex-end; }
/* the hidden attribute must always win over display rules of the components above */
.tl-main [hidden]{ display:none !important; }

/* =========================================================
   LIGHT SIGNALS (light-signals.html)
   Flashing = on/off, alternating = red/green. With reduced motion
   the lamp stays on and the caption still names the signal.
   ========================================================= */
.ls-stage{ border-radius:var(--radius-md); overflow:hidden; border:1px solid #1d2c3d; background:#0b1420; }
.ls-svg{ display:block; width:100%; height:auto; }
.ls-sky{ fill:#10243a; }
.ls-ground{ fill:#1a2b1f; }
.ls-runway{ fill:#3b4652; }
.ls-tower{ fill:#c9d4df; }
.ls-cab{ fill:#9fb0c1; }
.ls-cab-roof{ fill:#e8f1f7; }
.ls-glass{ fill:#20c4e3; opacity:.55; }
.ls-lamp{ fill:#555; stroke:#fff; stroke-width:2; }
.ls-beam{ fill:transparent; }
.ls-lamp.is-green{ fill:#22c55e; } .ls-beam.is-green{ fill:rgba(34,197,94,.33); }
.ls-lamp.is-red{ fill:#ef4444; }   .ls-beam.is-red{ fill:rgba(239,68,68,.33); }
.ls-lamp.is-white{ fill:#ffffff; } .ls-beam.is-white{ fill:rgba(255,255,255,.3); }
.ls-lamp.is-off, .ls-beam.is-off{ fill:transparent; }
.ls-lamp.is-flash, .ls-beam.is-flash{ animation:ls-blink .9s steps(1) infinite; }
.ls-lamp.is-alt{ animation:ls-alt-lamp 1.2s steps(1) infinite; }
.ls-beam.is-alt{ animation:ls-alt-beam 1.2s steps(1) infinite; }
@keyframes ls-blink{ 0%{ opacity:1; } 50%{ opacity:.06; } }
@keyframes ls-alt-lamp{ 0%{ fill:#ef4444; } 50%{ fill:#22c55e; } }
@keyframes ls-alt-beam{ 0%{ fill:rgba(239,68,68,.33); } 50%{ fill:rgba(34,197,94,.33); } }
.ls-pyro-trail{ fill:none; stroke:#ef4444; stroke-width:3; stroke-dasharray:300; stroke-dashoffset:300; }
.ls-pyro-star{ fill:#ff6b6b; opacity:0; }
.ls-pyro.is-go .ls-pyro-trail{ animation:ls-trail 2.4s ease-out infinite; }
.ls-pyro.is-go .ls-pyro-star{ animation:ls-star 2.4s ease-out infinite; }
@keyframes ls-trail{ 0%{ stroke-dashoffset:300; opacity:1; } 45%{ stroke-dashoffset:0; opacity:1; } 100%{ stroke-dashoffset:0; opacity:0; } }
@keyframes ls-star{ 0%,40%{ opacity:0; } 45%{ opacity:1; } 100%{ opacity:0; } }
.ls-caption{ padding:.8rem 1rem; font-family:'Space Mono',monospace; font-size:.82rem; color:#dff7fb; border-top:1px solid #1d2c3d; min-height:3.2em; }

.ls-table{ display:flex; flex-direction:column; gap:.45rem; }
.ls-row{
  display:flex; align-items:flex-start; gap:.8rem; width:100%; text-align:left; cursor:pointer;
  padding:.7rem .85rem; background:#fff; border:1.5px solid var(--line); border-radius:var(--radius-sm); font-family:'Inter',sans-serif;
}
.ls-row:hover{ border-color:var(--cyan); }
.ls-row.active{ border-color:var(--navy); background:var(--bg-alt); }
.ls-row:focus-visible{ outline:2px solid var(--cyan); outline-offset:2px; }
.ls-row-txt{ display:flex; flex-direction:column; gap:.15rem; font-size:.84rem; color:var(--sub); line-height:1.45; }
.ls-row-txt strong{ color:var(--ink); font-size:.86rem; }
.ls-swatch{ flex:none; width:22px; height:22px; border-radius:50%; margin-top:.1rem; border:2px solid rgba(11,20,32,.2); background:#999; }
.ls-swatch.is-green{ background:#22c55e; } .ls-swatch.is-red{ background:#ef4444; } .ls-swatch.is-white{ background:#fff; }
.ls-swatch.is-rg{ background:linear-gradient(90deg,#ef4444 50%,#22c55e 50%); }
.ls-swatch.is-flash{ border-style:dashed; border-color:#0b1420; }
.ls-swatch.is-pyro{ background:radial-gradient(circle,#ffb4b4 0 25%,#ef4444 30% 100%); }
.ls-choice{ display:flex; align-items:center; gap:.7rem; }
.ls-streak{ margin-left:.6rem; color:var(--amber); font-weight:700; }
@media (prefers-reduced-motion:reduce){
  .ls-lamp.is-flash, .ls-beam.is-flash, .ls-lamp.is-alt, .ls-beam.is-alt, .ls-pyro.is-go .ls-pyro-trail, .ls-pyro.is-go .ls-pyro-star{ animation:none; }
  .ls-pyro-trail{ stroke-dashoffset:0; } .ls-pyro-star{ opacity:1; }
}
.ls-qlamp-wrap{ display:flex; align-items:center; gap:1rem; margin-bottom:1rem; padding:.9rem 1.1rem; background:#0b1420; border-radius:var(--radius-sm); border:1px solid #1d2c3d; }
.ls-qlamp{ width:54px; height:54px; border-radius:50%; background:#555; border:3px solid #fff; flex:none; }
.ls-qlamp.is-green{ background:#22c55e; box-shadow:0 0 22px rgba(34,197,94,.8); }
.ls-qlamp.is-red{ background:#ef4444; box-shadow:0 0 22px rgba(239,68,68,.8); }
.ls-qlamp.is-white{ background:#fff; box-shadow:0 0 22px rgba(255,255,255,.8); }
.ls-qlamp.is-flash{ animation:ls-blink .9s steps(1) infinite; }
.ls-qlamp.is-alt{ animation:ls-alt-bg 1.2s steps(1) infinite; }
.ls-qlamp.is-pyro{ border-style:dotted; animation:ls-pyro-bg 2.4s ease-out infinite; }
@keyframes ls-alt-bg{ 0%{ background:#ef4444; box-shadow:0 0 22px rgba(239,68,68,.8); } 50%{ background:#22c55e; box-shadow:0 0 22px rgba(34,197,94,.8); } }
@keyframes ls-pyro-bg{ 0%{ transform:translateY(12px) scale(.5); opacity:.3; } 45%{ transform:translateY(0) scale(1); opacity:1; } 100%{ opacity:0; } }
.ls-qctx{ font-family:'Space Mono',monospace; font-size:.85rem; font-weight:700; color:#dff7fb; text-transform:uppercase; letter-spacing:.08em; }
@media (prefers-reduced-motion:reduce){ .ls-qlamp{ animation:none !important; } .ls-qlamp.is-flash{ border-style:dashed; } }
/* long German compound words must never widen the page on phones */
.tl-line > span:last-child, .tl-feedback p, .tl-choice, .tl-acc-body p, .tl-help-body p{ min-width:0; overflow-wrap:break-word; hyphens:auto; }
@media (max-width:560px){ .tl-line{ flex-direction:column; gap:.25rem; } .tl-line-tag{ min-width:0; } }
/* Cessna 172 SVG (light-signals.html), colours match KBKit.drawC172 */
.c1-skin{ fill:#f4f7fa; stroke:#1b2733; stroke-width:2; stroke-linejoin:round; }
.c1-belly{ fill:#dfe6ee; }
.c1-stripe{ fill:#003D7A; } .c1-stripe2{ fill:#20c4e3; }
.c1-win{ fill:#3b4d63; stroke:#1b2733; stroke-width:1.4; }
.c1-line{ fill:none; stroke:#1b2733; stroke-width:1.4; stroke-linecap:round; }
.c1-strut-o{ fill:none; stroke:#1b2733; stroke-width:4; stroke-linecap:round; }
.c1-strut{ fill:none; stroke:#dfe6ee; stroke-width:2.2; stroke-linecap:round; }
.c1-leg{ fill:none; stroke:#1b2733; stroke-width:3; stroke-linecap:round; }
.c1-tyre{ fill:#1b2733; } .c1-hub{ fill:#c9d3dd; }
.c1-prop{ fill:rgba(142,154,166,.85); }
.c1-spin{ fill:#b8c3ce; stroke:#1b2733; stroke-width:1.4; }
.c1-beacon{ fill:#e53935; }

/* =========================================================
   BRIEFING SIMULATOR (briefing-simulator.html)
   ========================================================= */
.bf-checklist{ display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:.55rem; }
.bf-item{
  display:flex; align-items:flex-start; gap:.7rem; padding:.7rem .9rem;
  background:var(--bg-alt); border:1.5px solid var(--line); border-radius:var(--radius-sm);
  cursor:pointer; transition:border-color .2s ease, background .2s ease;
}
.bf-item:hover{ border-color:var(--navy); }
.bf-item input[type="checkbox"]{ width:19px; height:19px; margin-top:.1rem; cursor:pointer; accent-color:var(--navy); flex:none; }
.bf-item-label{ font-size:.88rem; font-weight:600; color:var(--ink); line-height:1.4; }

/* =========================================================
   WEIGHT & BALANCE (weight-balance.html)
   ========================================================= */
.wbal-scene-wrap{ border-radius:var(--radius-md); overflow:hidden; border:1px solid var(--line); }
canvas.wbal-seesaw{ display:block; width:100%; aspect-ratio:1/0.72; height:auto; background:#f4f8fb; }
canvas.wbal-env{ display:block; width:100%; aspect-ratio:1/0.85; height:auto; background:#f4f8fb; border-radius:var(--radius-md); border:1px solid var(--line); }
canvas.wbal-cp{ display:block; width:100%; aspect-ratio:1/0.6; height:auto; background:#f4f8fb; }

/* =========================================================
   CARB HEAT & ICING (carb-icing.html)
   ========================================================= */
canvas.ci-chart{ display:block; width:100%; aspect-ratio:1/0.72; height:auto; background:#f4f8fb; border-radius:var(--radius-md); border:1px solid var(--line); }
canvas.ci-carb{ display:block; width:100%; aspect-ratio:1/0.62; height:auto; border-radius:var(--radius-md); }
.tl-btn-play{ display:flex; align-items:center; gap:.5rem; }
.tl-btn-play.is-running{ background:var(--amber); border-color:var(--amber); color:#fff; }
.ci-heat-btn{ width:100%; text-align:center; }
.ci-heat-btn.is-on{ background:var(--amber); border-color:var(--amber); color:#fff; }

/* =========================================================
   TRAFFIC PATTERN (traffic-pattern.html)
   ========================================================= */
canvas.tp-map{ display:block; width:100%; aspect-ratio:1/0.72; height:auto; background:#f4f8fb; border-radius:var(--radius-md); border:1px solid var(--line); cursor:default; }
.tp-leg-badge{
  font-family:'Space Mono',monospace; font-weight:700; font-size:1rem; letter-spacing:.04em;
  color:#fff; background:var(--navy); padding:.5rem 1rem; border-radius:var(--radius-sm);
  display:inline-block; margin-bottom:.9rem;
}

/* =========================================================
   AERODROME MARKINGS & SIGNS (aerodrome-signs.html)
   ========================================================= */
.as-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:1rem; }
.as-card{ margin:0; border:1px solid var(--line); border-radius:var(--radius-md); overflow:hidden; background:#fff; }
.as-card .as-icon{ display:block; width:100%; height:auto; }
.as-card figcaption{ padding:.85rem 1rem 1rem; }
.as-card figcaption strong{ display:block; font-size:.88rem; color:var(--ink); margin-bottom:.3rem; }
.as-card figcaption p{ font-size:.8rem; color:var(--sub); line-height:1.5; margin:0; }
.as-quiz-stage{ max-width:360px; margin:0 auto 1.2rem; border-radius:var(--radius-md); overflow:hidden; border:1px solid var(--line); }
.as-quiz-stage svg{ display:block; width:100%; height:auto; }

/* =========================================================
   PAPI / VASI (papi-vasi.html)
   ========================================================= */
canvas.pv-scene{ display:block; width:100%; aspect-ratio:1/0.55; height:auto; border-radius:var(--radius-md); border:1px solid var(--line); }
.pv-lights{
  display:flex; flex-direction:row; gap:.7rem; justify-content:center; align-items:center;
  background:#0b1420; border-radius:var(--radius-md); border:1px solid rgba(32,196,227,.3);
  padding:2rem 1rem; margin:1rem 0 .6rem;
}
/* VASI: far bar stacks visually above the near bar ("red over white") */
.pv-lights.is-vasi{ flex-direction:column; gap:.5rem; }
.pv-light{ width:2.6rem; height:2.6rem; border-radius:50%; box-shadow:0 0 18px currentColor, inset 0 0 8px rgba(0,0,0,.35); }
.pv-light-red{ background:#ef4444; color:#ef4444; }
.pv-light-white{ background:#f8fafc; color:#f8fafc; }
.pv-bar{ width:4.2rem; height:1.5rem; border-radius:var(--radius-sm); box-shadow:0 0 18px currentColor, inset 0 0 8px rgba(0,0,0,.35); }
.pv-bar-red{ background:#ef4444; color:#ef4444; }
.pv-bar-white{ background:#f8fafc; color:#f8fafc; }
.pv-lights-quiz{ padding:1.6rem 1rem; }
.pv-readline{ text-align:center; font-family:'Space Mono',monospace; font-weight:700; font-size:.95rem; color:var(--navy); margin:0; }

/* =========================================================
   E6B TRAINER (e6b-trainer.html)
   ========================================================= */
canvas.e6-triangle{ display:block; width:100%; aspect-ratio:1/0.78; height:auto; border-radius:var(--radius-md); border:1px solid var(--line); }
.e6-note{ margin-top:.8rem; font-size:.85rem; color:var(--navy); font-weight:600; min-height:1.3em; }
.e6-select{ width:auto; flex:1; min-width:140px; }
.e6-conv-value{ width:auto; flex:1; min-width:100px; }

/* =========================================================
   ELECTRICAL FAILURE TRAINER (electrical-failure.html)
   ========================================================= */
canvas.ef-schematic{ display:block; width:100%; aspect-ratio:1/0.68; height:auto; border-radius:var(--radius-md); border:1px solid var(--line); }
.ef-gauges{ display:flex; gap:.8rem; }
canvas.ef-gauge{ display:block; flex:1; min-width:0; width:100%; aspect-ratio:1/1; height:auto; border-radius:var(--radius-md); border:1px solid var(--line); background:#0b1420; }
.ef-fail-btn{ width:100%; text-align:center; }
.ef-fail-btn.is-on{ background:var(--danger); border-color:var(--danger); color:#fff; }
.ef-loads{ display:flex; flex-direction:column; gap:.5rem; }
.ef-load{
  display:flex; align-items:center; gap:.7rem; padding:.6rem .8rem;
  border:1px solid var(--line); border-radius:var(--radius-sm); cursor:pointer;
  font-size:.9rem; color:var(--ink); transition:border-color .2s ease, background .2s ease;
}
.ef-load:hover{ border-color:var(--navy-light); }
.ef-load input{ flex:none; width:16px; height:16px; accent-color:var(--navy); }
.ef-load span:nth-child(2){ flex:1; }
.ef-load-amp{ font-family:'Space Mono',monospace; font-size:.78rem; color:var(--sub-soft); }

/* =========================================================
   WAKE TURBULENCE SIMULATOR (wake-turbulence.html)
   ========================================================= */
canvas.wt-scene{ display:block; width:100%; aspect-ratio:1/0.6; height:auto; border-radius:var(--radius-md); border:1px solid var(--line); }
.wt-label{ font-size:.8rem; font-weight:700; color:var(--sub); text-transform:uppercase; letter-spacing:.04em; margin:0 0 .6rem; }
.wt-technique{
  padding:.9rem 1rem; border-radius:var(--radius-sm); background:var(--bg-alt);
  border:1.5px solid var(--line); font-size:.86rem; color:var(--sub); line-height:1.6; min-height:1.6em;
}
.wt-technique strong{ color:var(--navy); }
.wt-example{ margin:.5rem 0 0; font-size:.8rem; color:var(--sub-soft); font-style:italic; }

/* =========================================================
   ATC COMMS SIMULATOR (atc-comms-faa.html / atc-comms-easa.html)
   ========================================================= */
.ac-radio{ background:#0b1420; border-radius:var(--radius-md); border:1px solid rgba(32,196,227,.3); padding:1.1rem 1.2rem; color:#8ee9f7; }
.ac-radio-head{ display:flex; align-items:center; gap:.8rem; border-bottom:1px dashed rgba(142,233,247,.25); padding-bottom:.7rem; margin-bottom:.9rem; flex-wrap:wrap; }
.ac-radio-field{ font-family:'Space Mono',monospace; font-weight:700; color:#fff; letter-spacing:.03em; }
.ac-radio-callsign{ font-family:'Space Mono',monospace; font-size:.78rem; color:#7fa3bd; margin-left:auto; }
.ac-phase{ font-family:'Space Mono',monospace; font-size:.7rem; letter-spacing:.08em; text-transform:uppercase; color:#7fa3bd; margin-bottom:.5rem; }
.ac-text{ font-family:'Space Mono',monospace; font-size:.92rem; line-height:1.85; color:#dff7fb; min-height:5rem; }
.ac-quiz-bar{ display:flex; align-items:center; gap:.75rem; flex-wrap:wrap; margin-top:1rem; }

/* =========================================================
   AIRSPEEDS: IAS / CAS / TAS / GS (airspeeds.html)
   ========================================================= */
canvas.asp-scene{ display:block; width:100%; aspect-ratio:1/0.62; height:auto; border-radius:var(--radius-md); border:1px solid var(--line); }
.asp-chain{ display:flex; flex-direction:column; gap:0; }
.asp-chain-box{
  border:1.5px solid var(--line); border-radius:var(--radius-sm); background:var(--bg-alt);
  padding:.7rem .9rem; transition:border-color .2s ease, background .2s ease;
}
.asp-chain-box.active{ border-color:var(--cyan); background:#eefcff; }
.asp-chain-l{ display:flex; align-items:baseline; justify-content:space-between; gap:.5rem; }
.asp-chain-name{ font-family:'Space Mono',monospace; font-weight:700; font-size:.78rem; letter-spacing:.04em; color:var(--navy); }
.asp-chain-full{ font-size:.72rem; color:var(--sub-soft); }
.asp-chain-v{ display:block; font-family:'Space Mono',monospace; font-size:1.4rem; font-weight:700; color:var(--ink); margin-top:.15rem; }
.asp-chain-arrow{ display:flex; align-items:center; gap:.5rem; padding:.35rem .9rem; color:var(--sub-soft); }
.asp-chain-arrow svg{ flex:none; width:16px; height:16px; }
.asp-chain-delta{ font-family:'Space Mono',monospace; font-size:.76rem; font-weight:700; }
.asp-chain-delta.is-up{ color:var(--danger); }
.asp-chain-delta.is-down{ color:var(--cyan-deep); }
.asp-chain-delta.is-flat{ color:var(--sub-soft); }
.asp-stage-explain{
  margin-top:1rem; padding:.9rem 1rem; border-radius:var(--radius-sm); background:var(--bg-alt);
  border:1.5px solid var(--line); font-size:.86rem; color:var(--sub); line-height:1.6; min-height:4.6em;
}
.asp-stage-explain strong{ color:var(--navy); }