/* =====================================================
   TestMikrofonu.pl — main.css
   Design: Signal · Audio-first · DM Sans + DM Mono
   ===================================================== */

/* ── Custom properties ───────────────────────────────── */
:root{
  --tl-bg:       #12141A;
  --tl-bg2:      #1A1C24;
  --tl-bg3:      #20232E;
  --tl-card:     #1E2028;
  --tl-card-h:   #252834;
  --tl-border:   rgba(255,255,255,.07);
  --tl-border-h: rgba(255,255,255,.13);
  --tl-accent:   #00BFA5;          /* teal */
  --tl-accent2:  oklch(0.65 0.18 180);
  --tl-accent-d: rgba(0,191,165,.12);
  --tl-accent-g: rgba(0,191,165,.22);
  --tl-blue:     #3b82f6;
  --tl-orange:   #f97316;
  --tl-red:      #ef4444;
  --tl-yellow:   #eab308;
  --tl-text:     #E4E8F0;
  --tl-text2:    #94a3b8;
  --tl-text3:    #475569;
  --tl-r:        12px;
  --tl-r-sm:     8px;
  --tl-r-xl:     20px;
  --tl-shadow:   0 8px 40px rgba(0,0,0,.55);
  --tl-trans:    .18s cubic-bezier(.4,0,.2,1);
}

/* ── Reset ───────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;background:var(--tl-bg)}
body{font-family:'DM Sans',system-ui,sans-serif;color:var(--tl-text);background:var(--tl-bg);line-height:1.65;font-size:16px}
img,video,canvas{max-width:100%;display:block}
a{color:var(--tl-accent);text-decoration:none;transition:opacity var(--tl-trans)}
a:hover{opacity:.8}
.mono{font-family:'DM Mono',monospace}

/* ── Typography ──────────────────────────────────────── */
h1,h2,h3,h4{font-weight:700;line-height:1.15;letter-spacing:-.025em;color:var(--tl-text)}
h1{font-size:clamp(2rem,5vw,3.5rem)}
h2{font-size:clamp(1.4rem,3vw,2rem);margin-bottom:1rem}
h3{font-size:1.25rem;margin-bottom:.75rem}
p{color:var(--tl-text2);line-height:1.75;margin-bottom:1rem}
ul,ol{padding-left:1.25rem;color:var(--tl-text2)}
li{margin-bottom:.35rem;line-height:1.65}

/* ── Layout ──────────────────────────────────────────── */
.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}
.container-narrow{max-width:900px;margin:0 auto;padding:0 1.5rem}

/* ── Sub-navigation ──────────────────────────────────── */
.tmpl-subnav{
  background:var(--tl-bg2);
  border-bottom:1px solid var(--tl-border);
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
}
.tmpl-subnav-inner{
  display:flex;
  align-items:center;
  gap:.25rem;
  padding:.5rem 1.5rem;
  max-width:1200px;
  margin:0 auto;
  min-width:max-content;
}
.tmpl-subnav-link{
  display:flex;
  align-items:center;
  gap:.4rem;
  padding:.45rem .9rem;
  font-size:.8125rem;
  font-weight:500;
  color:var(--tl-text3);
  border-radius:var(--tl-r-sm);
  transition:all var(--tl-trans);
  white-space:nowrap;
}
.tmpl-subnav-link:hover,.tmpl-subnav-link.active{
  color:var(--tl-text);
  background:rgba(255,255,255,.06);
  opacity:1;
}
.tmpl-subnav-link.active{color:var(--tl-accent)}
.tmpl-subnav-icon{font-size:14px}

/* ── Breadcrumbs ─────────────────────────────────────── */
.tmpl-breadcrumbs{
  display:flex;
  gap:.5rem;
  align-items:center;
  font-size:.8rem;
  color:var(--tl-text3);
  padding:.75rem 1.5rem;
  max-width:1200px;
  margin:0 auto;
}
.tmpl-breadcrumbs a{color:var(--tl-text3)}
.tmpl-breadcrumbs a:hover{color:var(--tl-accent)}

/* ── Hero ────────────────────────────────────────────── */
.tmpl-hero{
  max-width:1200px;
  margin:0 auto;
  padding:3.5rem 1.5rem 2rem;
  position:relative;
}
.tmpl-hero::before{
  content:'';
  position:absolute;
  top:-2rem;left:50%;
  transform:translateX(-50%);
  width:700px;height:400px;
  background:radial-gradient(ellipse,rgba(0,191,165,.06) 0%,transparent 70%);
  pointer-events:none;
  z-index:0;
}
.tmpl-hero-label{
  font-family:'DM Mono',monospace;
  font-size:.6875rem;
  color:var(--tl-text3);
  letter-spacing:.1em;
  text-transform:uppercase;
  margin-bottom:.75rem;
  position:relative;
  z-index:1;
}
.tmpl-hero-h1{
  position:relative;
  z-index:1;
  margin-bottom:1rem;
}
.tmpl-accent{color:var(--tl-accent)}
.tmpl-hero-sub{
  font-size:1.0625rem;
  color:var(--tl-text2);
  max-width:640px;
  line-height:1.75;
  position:relative;
  z-index:1;
  margin-bottom:0;
}
.tmpl-hero-sub strong{color:var(--tl-text)}

/* ── Page wrapper ────────────────────────────────────── */
.tmpl-page{max-width:1200px;margin:0 auto;padding:0 1.5rem 4rem}

/* ── Card ────────────────────────────────────────────── */
.tmpl-card{
  background:var(--tl-card);
  border:1px solid var(--tl-border);
  border-radius:var(--tl-r-xl);
  overflow:hidden;
  margin:1.5rem 0 2.5rem;
}
.tmpl-card--tool{}

/* ── Tool topbar ─────────────────────────────────────── */
.tmpl-tool-topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:1.125rem 1.75rem;
  border-bottom:1px solid var(--tl-border);
  flex-wrap:wrap;
  gap:.75rem;
}
.tmpl-tool-title{
  display:flex;
  align-items:center;
  gap:.6rem;
  font-weight:700;
  font-size:.9375rem;
}
.tmpl-tool-icon{font-size:1.1rem}

/* ── Status pill ─────────────────────────────────────── */
.tmpl-status-pill{
  display:flex;
  align-items:center;
  gap:.5rem;
  font-size:.8125rem;
  font-family:'DM Mono',monospace;
  color:var(--tl-text3);
  background:rgba(255,255,255,.04);
  border:1px solid var(--tl-border);
  border-radius:999px;
  padding:.3rem .9rem;
  transition:all var(--tl-trans);
}
.tmpl-dot{
  width:7px;height:7px;
  border-radius:50%;
  background:var(--tl-text3);
  transition:all var(--tl-trans);
  flex-shrink:0;
}
.tmpl-dot.ready{background:var(--tl-accent);box-shadow:0 0 6px var(--tl-accent)}
.tmpl-dot.running{background:var(--tl-orange);animation:tmplPulse 1s infinite}
.tmpl-dot.error{background:var(--tl-red)}
@keyframes tmplPulse{0%,100%{opacity:1}50%{opacity:.25}}

/* ── Alert ───────────────────────────────────────────── */
.tmpl-alert{
  margin:0 1.75rem;
  padding:.875rem 1.125rem;
  border-radius:var(--tl-r-sm);
  font-size:.875rem;
  line-height:1.6;
  margin-top:1.25rem;
}
.tmpl-alert--info{background:rgba(59,130,246,.1);border:1px solid rgba(59,130,246,.2);color:#93c5fd}
.tmpl-alert--warning{background:rgba(234,179,8,.1);border:1px solid rgba(234,179,8,.2);color:#fde047}
.tmpl-alert--error{background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.2);color:#fca5a5}
.tmpl-alert strong{color:inherit}

/* ── Waveform ────────────────────────────────────────── */
.tmpl-waveform-wrap{
  position:relative;
  margin:1.5rem 1.75rem .5rem;
  border-radius:var(--tl-r);
  overflow:hidden;
  background:rgba(0,0,0,.4);
  height:90px;
}
.tmpl-waveform{
  width:100%;
  height:90px;
  display:block;
}
.tmpl-waveform-idle{
  position:absolute;
  inset:0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  color:var(--tl-text3);
  font-size:.875rem;
  pointer-events:none;
}
.tmpl-mic-idle-icon{font-size:2rem;opacity:.3}

/* ── Meter ───────────────────────────────────────────── */
.tmpl-meter-row{
  display:flex;
  align-items:center;
  gap:.875rem;
  padding:.75rem 1.75rem;
}
.tmpl-meter-label{font-size:.8125rem;color:var(--tl-text3);min-width:50px}
.tmpl-meter-track{
  flex:1;
  height:5px;
  background:rgba(255,255,255,.08);
  border-radius:999px;
  overflow:hidden;
}
.tmpl-meter-fill{
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--tl-accent),#3b82f6);
  width:0;
  transition:width .08s;
}
.tmpl-meter-fill.warn{background:linear-gradient(90deg,#eab308,#f97316)}
.tmpl-meter-fill.crit{background:#ef4444}
.tmpl-meter-val{font-family:'DM Mono',monospace;font-size:.8125rem;color:var(--tl-text2);min-width:56px;text-align:right}

/* ── Results grid ────────────────────────────────────── */
.tmpl-results-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(130px,1fr));
  gap:1px;
  background:var(--tl-border);
  border-top:1px solid var(--tl-border);
  border-bottom:1px solid var(--tl-border);
  margin-top:1rem;
}
.tmpl-stat{
  background:var(--tl-card);
  padding:1rem 1.25rem;
  display:flex;
  flex-direction:column;
  gap:.375rem;
}
.tmpl-stat--lg .tmpl-stat-val{font-size:2.25rem}
.tmpl-stat-val{
  font-family:'DM Mono',monospace;
  font-size:1.375rem;
  font-weight:700;
  color:var(--tl-accent);
  letter-spacing:-.03em;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.tmpl-stat-label{font-size:.6875rem;color:var(--tl-text3);text-transform:uppercase;letter-spacing:.07em}

/* ── Diagnosis box ───────────────────────────────────── */
.tmpl-diagnosis{
  margin:1.25rem 1.75rem;
  padding:1rem 1.25rem;
  border-radius:var(--tl-r);
  font-size:.875rem;
  line-height:1.7;
}
.tmpl-diagnosis.ok{background:rgba(0,191,165,.1);border:1px solid rgba(0,191,165,.2);color:#5eead4}
.tmpl-diagnosis.warn{background:rgba(234,179,8,.1);border:1px solid rgba(234,179,8,.2);color:#fde047}
.tmpl-diagnosis.fail{background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.2);color:#fca5a5}
.tmpl-diagnosis strong{color:inherit}
.tmpl-diagnosis br+br{display:none}

/* ── Controls ────────────────────────────────────────── */
.tmpl-controls{
  display:flex;
  flex-wrap:wrap;
  gap:.75rem;
  padding:1.5rem 1.75rem;
  border-top:1px solid var(--tl-border);
}

/* ── Buttons ─────────────────────────────────────────── */
.tmpl-btn{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  padding:.6rem 1.25rem;
  border-radius:var(--tl-r-sm);
  font-size:.875rem;
  font-weight:600;
  cursor:pointer;
  border:none;
  font-family:inherit;
  transition:all var(--tl-trans);
  line-height:1;
  text-decoration:none;
}
.tmpl-btn--primary{background:var(--tl-accent);color:#0a0f0e}
.tmpl-btn--primary:hover{background:#00d4b5;transform:translateY(-1px);box-shadow:0 6px 20px rgba(0,191,165,.3);color:#0a0f0e;opacity:1}
.tmpl-btn--ghost{background:rgba(255,255,255,.06);color:var(--tl-text);border:1px solid var(--tl-border)}
.tmpl-btn--ghost:hover{background:rgba(255,255,255,.1);color:var(--tl-text);opacity:1}
.tmpl-btn--outline{background:transparent;color:var(--tl-text2);border:1px solid var(--tl-border)}
.tmpl-btn--outline:hover{border-color:var(--tl-accent);color:var(--tl-accent);opacity:1}
.tmpl-btn--lg{padding:.85rem 1.75rem;font-size:.9375rem}
.tmpl-btn--sm{padding:.4rem .875rem;font-size:.8125rem}
.tmpl-btn:disabled{opacity:.4;pointer-events:none}

/* ── Recording panel ─────────────────────────────────── */
.tmpl-rec-panel{
  border-top:1px solid var(--tl-border);
  padding:1.25rem 1.75rem;
}
.tmpl-rec-header{
  display:flex;
  align-items:center;
  gap:.75rem;
  margin-bottom:1rem;
  font-size:.875rem;
}
.tmpl-rec-dot{
  width:9px;height:9px;
  border-radius:50%;
  background:var(--tl-red);
  box-shadow:0 0 6px var(--tl-red);
  animation:tmplPulse .8s infinite;
  flex-shrink:0;
}
.tmpl-rec-dot.done{background:var(--tl-accent);box-shadow:0 0 6px var(--tl-accent);animation:none}
.tmpl-rec-time{font-family:'DM Mono',monospace;color:var(--tl-text2);margin-left:auto}

/* Playback canvas */
.tmpl-playback-canvas{
  width:100%;height:60px;
  background:rgba(0,0,0,.35);
  border-radius:var(--tl-r-sm);
  display:block;
  margin-bottom:1rem;
}

/* ── Player (audio/video scrub) ───────────────────────── */
.tmpl-player{}
.tmpl-player-controls{
  display:flex;
  align-items:center;
  gap:.75rem;
  margin-bottom:.875rem;
}
.tmpl-scrub-track{
  flex:1;height:5px;
  background:rgba(255,255,255,.1);
  border-radius:999px;
  position:relative;
  cursor:pointer;
  transition:height var(--tl-trans);
}
.tmpl-scrub-track:hover{height:7px}
.tmpl-scrub-fill{
  position:absolute;
  left:0;top:0;bottom:0;
  background:var(--tl-accent);
  border-radius:999px;
  width:0;
  pointer-events:none;
}
.tmpl-scrub-thumb{
  position:absolute;
  top:50%;
  transform:translate(-50%,-50%);
  width:13px;height:13px;
  background:#fff;
  border-radius:50%;
  left:0;
  pointer-events:none;
  opacity:0;
  transition:opacity var(--tl-trans);
}
.tmpl-scrub-track:hover .tmpl-scrub-thumb{opacity:1}
.tmpl-player-time{font-family:'DM Mono',monospace;font-size:.75rem;color:var(--tl-text3);white-space:nowrap}
.tmpl-player-actions{display:flex;gap:.75rem;flex-wrap:wrap}

/* ── Camera preview ──────────────────────────────────── */
.tmpl-cam-preview-wrap{
  position:relative;
  margin:1.5rem 1.75rem .5rem;
  border-radius:var(--tl-r);
  overflow:hidden;
  background:#000;
  aspect-ratio:16/9;
  max-height:360px;
}
.tmpl-cam-video{
  width:100%;height:100%;
  object-fit:cover;
  display:block;
}
.tmpl-cam-overlay{
  position:absolute;
  inset:0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:.75rem;
  color:var(--tl-text3);
  font-size:.875rem;
  background:rgba(0,0,0,.5);
}
.tmpl-cam-badge{
  position:absolute;
  top:.75rem;right:.75rem;
  background:rgba(0,0,0,.7);
  color:var(--tl-accent);
  font-family:'DM Mono',monospace;
  font-size:.75rem;
  padding:.3rem .65rem;
  border-radius:var(--tl-r-sm);
}

/* Video playback wrap */
.tmpl-video-playback-wrap{
  padding:1.25rem;
  background:rgba(0,0,0,.2);
  border-radius:var(--tl-r);
  margin-top:1rem;
}

/* ── Speakers / Headphones ───────────────────────────── */
.tmpl-channel-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:1rem;
  padding:1.5rem 1.75rem;
}
.tmpl-channel-card{
  background:var(--tl-bg3);
  border:1px solid var(--tl-border);
  border-radius:var(--tl-r);
  padding:1.25rem;
}
.tmpl-channel-label{font-size:.875rem;font-weight:600;margin-bottom:.75rem;color:var(--tl-text2)}
.tmpl-channel-bar{height:5px;background:rgba(255,255,255,.08);border-radius:999px;overflow:hidden;margin-bottom:.5rem}
.tmpl-channel-fill{height:100%;background:var(--tl-accent);border-radius:999px;width:0;transition:width 1.5s}
.tmpl-channel-status{font-size:.8125rem;color:var(--tl-text3);font-family:'DM Mono',monospace}
.tmpl-freq-grid{
  display:flex;
  gap:.5rem;
  flex-wrap:wrap;
  padding:0 1.75rem 1.25rem;
}
.tmpl-freq-btn{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:2px;
  padding:.6rem .9rem;
  background:var(--tl-bg3);
  border:1px solid var(--tl-border);
  border-radius:var(--tl-r-sm);
  color:var(--tl-text);
  cursor:pointer;
  font-family:inherit;
  font-size:.8125rem;
  font-weight:600;
  transition:all var(--tl-trans);
}
.tmpl-freq-btn small{font-size:.6875rem;color:var(--tl-text3);font-weight:400}
.tmpl-freq-btn:hover{border-color:var(--tl-accent);color:var(--tl-accent)}

/* ── Ping chart ──────────────────────────────────────── */
.tmpl-chart{
  display:block;
  width:calc(100% - 3.5rem);
  height:100px;
  margin:1rem 1.75rem;
  border-radius:var(--tl-r-sm);
  background:rgba(0,0,0,.35);
}
.tmpl-ping-legend{
  display:flex;
  gap:1.25rem;
  padding:0 1.75rem .5rem;
  font-size:.75rem;
  flex-wrap:wrap;
}
.legend-good{color:#00BFA5}
.legend-ok{color:#eab308}
.legend-bad{color:#ef4444}

/* ── Speed gauge ─────────────────────────────────────── */
.tmpl-gauge-wrap{display:flex;justify-content:center;padding:2rem 0 .5rem}
.tmpl-gauge{width:220px;height:auto}
.tmpl-progress-wrap{padding:0 1.75rem 1rem}
.tmpl-progress-label{font-size:.8125rem;color:var(--tl-text3);margin-bottom:.5rem}

/* ── Share row ───────────────────────────────────────── */
.tmpl-share-row{
  display:flex;
  align-items:center;
  gap:.875rem;
  padding:1.125rem 1.75rem;
  border-top:1px solid var(--tl-border);
  flex-wrap:wrap;
}
.tmpl-share-label{font-size:.8125rem;color:var(--tl-text3);white-space:nowrap}
.tmpl-share-inner{display:flex;gap:.5rem;flex:1;min-width:200px}
.tmpl-share-input{
  flex:1;
  background:rgba(0,0,0,.4);
  border:1px solid var(--tl-border);
  border-radius:var(--tl-r-sm);
  padding:.5rem .875rem;
  color:var(--tl-text3);
  font-family:'DM Mono',monospace;
  font-size:.75rem;
  outline:none;
  min-width:0;
}

/* ── SEO content area ────────────────────────────────── */
.tmpl-content{
  max-width:760px;
  margin:0 0 2.5rem;
  padding-top:.5rem;
}
.tmpl-content h2{margin-top:2rem;margin-bottom:.75rem}
.tmpl-content h3{margin-top:1.5rem;margin-bottom:.5rem}
.tmpl-content p{margin-bottom:1rem}
.tmpl-content ul,
.tmpl-content ol{margin-bottom:1rem}
.tmpl-content strong{color:var(--tl-text)}

/* ── Section title ───────────────────────────────────── */
.tmpl-section-title{
  font-size:1.125rem;
  font-weight:700;
  margin-bottom:1.25rem;
  padding:1.25rem 1.75rem 0;
}

/* ── FAQ ─────────────────────────────────────────────── */
.tmpl-faq{margin:2.5rem 0}
.tmpl-faq-title{font-size:1.25rem;font-weight:700;margin-bottom:1.25rem}
.tmpl-faq-item{border-bottom:1px solid var(--tl-border)}
.tmpl-faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  width:100%;
  background:none;
  border:none;
  color:var(--tl-text);
  font-family:inherit;
  font-size:.9375rem;
  font-weight:600;
  padding:1.125rem 0;
  cursor:pointer;
  text-align:left;
}
.tmpl-faq-q:hover .tmpl-faq-icon{border-color:var(--tl-accent);color:var(--tl-accent)}
.tmpl-faq-icon{
  width:24px;height:24px;
  border:1px solid var(--tl-border);
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  flex-shrink:0;
  transition:all var(--tl-trans);
}
.tmpl-faq-item.open .tmpl-faq-icon{transform:rotate(45deg);border-color:var(--tl-accent);color:var(--tl-accent)}
.tmpl-faq-a{
  padding:0 0 1.125rem;
  font-size:.8875rem;
  color:var(--tl-text2);
  line-height:1.75;
}

/* ── Also see ────────────────────────────────────────── */
.tmpl-also{margin:2rem 0;padding:1.5rem;background:var(--tl-bg2);border:1px solid var(--tl-border);border-radius:var(--tl-r)}
.tmpl-also h3{font-size:1rem;font-weight:700;margin-bottom:1rem}
.tmpl-also ul{list-style:none;padding:0;margin:0}
.tmpl-also li{margin-bottom:.6rem;font-size:.875rem;color:var(--tl-text2)}
.tmpl-also a{color:var(--tl-accent);font-weight:500}

/* ── Diagnostics wizard ──────────────────────────────── */
.diag-step{padding:0 0 1rem}
.diag-step:not(.active){}

.diag-problem-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:.875rem;
  padding:0 1.75rem 1.75rem;
}
.diag-problem-btn{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:.35rem;
  padding:1.125rem 1.25rem;
  background:var(--tl-bg3);
  border:1px solid var(--tl-border);
  border-radius:var(--tl-r);
  cursor:pointer;
  text-align:left;
  font-family:inherit;
  transition:all var(--tl-trans);
}
.diag-problem-btn:hover{border-color:var(--tl-accent);background:var(--tl-card-h)}
.diag-problem-btn strong{font-size:.9375rem;color:var(--tl-text);display:block}
.diag-problem-btn span:not(.diag-pb-icon){font-size:.8125rem;color:var(--tl-text3)}
.diag-pb-icon{font-size:1.5rem;margin-bottom:.15rem}

.diag-os-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:.875rem;
  padding:0 1.75rem 1.75rem;
}
.diag-os-btn{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:.5rem;
  padding:1.25rem;
  background:var(--tl-bg3);
  border:1px solid var(--tl-border);
  border-radius:var(--tl-r);
  cursor:pointer;
  font-family:inherit;
  font-size:.9375rem;
  font-weight:600;
  color:var(--tl-text);
  transition:all var(--tl-trans);
}
.diag-os-btn span{font-size:1.75rem}
.diag-os-btn:hover{border-color:var(--tl-accent);color:var(--tl-accent)}

.diag-back-btn{
  display:inline-flex;align-items:center;gap:.4rem;
  background:none;border:none;
  color:var(--tl-text3);font-family:inherit;font-size:.8125rem;
  cursor:pointer;padding:.75rem 1.75rem .5rem;
  transition:color var(--tl-trans);
}
.diag-back-btn:hover{color:var(--tl-accent)}

.diag-checklist{padding:0 1.75rem 1.75rem}
.diag-step-item{
  display:flex;
  gap:1rem;
  margin-bottom:1rem;
  padding:1rem 1.25rem;
  background:var(--tl-bg3);
  border:1px solid var(--tl-border);
  border-radius:var(--tl-r);
  transition:border-color var(--tl-trans);
}
.diag-step-item.done{border-color:rgba(0,191,165,.3)}
.diag-step-num{
  width:26px;height:26px;
  border-radius:50%;
  background:rgba(255,255,255,.07);
  display:flex;align-items:center;justify-content:center;
  font-size:.75rem;font-weight:700;
  flex-shrink:0;
  font-family:'DM Mono',monospace;
  color:var(--tl-text3);
}
.diag-step-item.done .diag-step-num{background:var(--tl-accent-d);color:var(--tl-accent)}
.diag-step-body{flex:1}
.diag-step-body strong{display:block;font-size:.9375rem;margin-bottom:.35rem;color:var(--tl-text)}
.diag-step-body p,.diag-step-body li{font-size:.8375rem;color:var(--tl-text2);line-height:1.65;margin-bottom:.25rem}
.diag-step-actions{margin-top:.75rem;display:flex;gap:.5rem;flex-wrap:wrap}

.diag-result{
  padding:1.5rem 1.75rem;
}
.diag-result-ok{background:rgba(0,191,165,.08);border:1px solid rgba(0,191,165,.2);border-radius:var(--tl-r);padding:1.25rem;margin-bottom:1.25rem;color:#5eead4}
.diag-result-fail{background:rgba(239,68,68,.08);border:1px solid rgba(239,68,68,.2);border-radius:var(--tl-r);padding:1.25rem;margin-bottom:1.25rem;color:#fca5a5}
.diag-result h3{font-size:1rem;margin-bottom:.75rem}
.diag-result ul{font-size:.875rem;color:inherit;margin:0;padding-left:1.25rem}
.diag-result li{margin-bottom:.4rem;line-height:1.6}

/* ── Responsive ──────────────────────────────────────── */
@media(max-width:768px){
  .tmpl-channel-grid{grid-template-columns:1fr}
  .tmpl-controls{padding:1.25rem}
  .tmpl-cam-preview-wrap{margin:1rem}
  .tmpl-waveform-wrap{margin:1rem}
  .tmpl-meter-row{padding:.75rem 1rem}
  .tmpl-tool-topbar{padding:1rem}
  .diag-problem-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:480px){
  .tmpl-hero{padding:2rem 1rem 1.5rem}
  .tmpl-page{padding:0 1rem 3rem}
  .diag-problem-grid{grid-template-columns:1fr}
  .diag-os-grid{grid-template-columns:repeat(3,1fr)}
  .tmpl-controls{flex-direction:column}
  .tmpl-btn--lg{text-align:center;justify-content:center}
  .tmpl-results-grid{grid-template-columns:1fr 1fr}
  .tmpl-share-row{flex-direction:column;align-items:flex-start}
}