:root{
  --bg:#f6f3ee;
  --surface:#ffffff;
  --surface-2:#fbf8f4;
  --ink:#1b1613;
  --ink-soft:#4a4038;
  --muted:#867a6f;
  --border:#e8e1d7;
  --border-soft:#f0eae1;

  --accent:#b3311d;
  --accent-deep:#7a1f12;
  --accent-soft:#fbe9e4;
  --accent-ink:#ffffff;

  --ok:#1f7a4d;
  --ok-bg:#e7f5ec;
  --ok-border:#1f7a4d;

  --warn:#9a6408;
  --warn-bg:#fbf0dc;
  --warn-border:#c98a2b;

  --danger:#b3311d;
  --danger-bg:#fbe9e6;
  --danger-border:#c94a3f;

  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:22px;
  --radius-pill:999px;

  --shadow-sm:0 1px 2px rgba(30,20,10,.05), 0 1px 1px rgba(30,20,10,.04);
  --shadow-md:0 8px 24px rgba(30,20,10,.08), 0 2px 6px rgba(30,20,10,.05);

  --nav-bg-translucent:rgba(246,243,238,.82);

  font-family:'Inter',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#15120f;
    --surface:#211b16;
    --surface-2:#1a1512;
    --ink:#f3ece3;
    --ink-soft:#d8cabb;
    --muted:#a3937f;
    --border:#38302a;
    --border-soft:#2a2420;

    --accent:#e2685a;
    --accent-deep:#b3311d;
    --accent-soft:#3a2320;
    --accent-ink:#1a0f0c;

    --ok:#4fbf83;
    --ok-bg:#173525;
    --ok-border:#4fbf83;

    --warn:#e0ac4f;
    --warn-bg:#3a2c12;
    --warn-border:#c98a2b;

    --danger:#e2685a;
    --danger-bg:#3a1d1a;
    --danger-border:#e2685a;

    --shadow-sm:0 1px 2px rgba(0,0,0,.3);
    --shadow-md:0 8px 24px rgba(0,0,0,.4);
    --nav-bg-translucent:rgba(21,18,15,.82);
  }
}
:root[data-theme="dark"]{
  --bg:#15120f;
  --surface:#211b16;
  --surface-2:#1a1512;
  --ink:#f3ece3;
  --ink-soft:#d8cabb;
  --muted:#a3937f;
  --border:#38302a;
  --border-soft:#2a2420;

  --accent:#e2685a;
  --accent-deep:#b3311d;
  --accent-soft:#3a2320;
  --accent-ink:#1a0f0c;

  --ok:#4fbf83;
  --ok-bg:#173525;
  --ok-border:#4fbf83;

  --warn:#e0ac4f;
  --warn-bg:#3a2c12;
  --warn-border:#c98a2b;

  --danger:#e2685a;
  --danger-bg:#3a1d1a;
  --danger-border:#e2685a;

  --shadow-sm:0 1px 2px rgba(0,0,0,.3);
  --shadow-md:0 8px 24px rgba(0,0,0,.4);
  --nav-bg-translucent:rgba(21,18,15,.82);
}

*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);line-height:1.55;-webkit-font-smoothing:antialiased}
.wrap{max-width:980px;margin:0 auto;padding:0 22px}

/* ---------- header ---------- */
.site-header{
  position:relative;
  background:linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  color:#fff;
  padding:52px 0 46px;
  overflow:hidden;
}
.site-header::before{
  content:"";
  position:absolute; inset:0;
  background-image:radial-gradient(circle at 85% 20%, rgba(255,255,255,.14), transparent 45%),
                    radial-gradient(circle at 8% 90%, rgba(255,255,255,.10), transparent 40%);
  pointer-events:none;
}
.site-header .wrap{position:relative}
.header-badges{display:flex; flex-wrap:wrap; gap:8px; margin-bottom:16px}
.kicker{
  display:inline-flex; align-items:center; gap:7px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.22);
  padding:5px 13px 5px 10px;
  border-radius:var(--radius-pill);
  font-size:.76rem; font-weight:600; letter-spacing:.03em; text-transform:uppercase;
}
.kicker-link{
  color:#fff; text-decoration:none; cursor:pointer;
  transition:background .15s ease, border-color .15s ease, transform .1s ease;
}
.kicker-link:hover{background:rgba(255,255,255,.28); border-color:rgba(255,255,255,.4)}
.kicker-link:active{transform:translateY(1px)}
.kicker .dot{
  width:6px; height:6px; border-radius:50%;
  background:#5eeaa0;
  box-shadow:0 0 0 0 rgba(94,234,160,.6);
  animation:pulse 2.2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(94,234,160,.55)}
  70%{box-shadow:0 0 0 7px rgba(94,234,160,0)}
  100%{box-shadow:0 0 0 0 rgba(94,234,160,0)}
}
.site-header h1{
  margin:0 0 10px;
  font-size:2.15rem;
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.15;
}
.tagline{margin:0;opacity:.94;max-width:620px;font-size:1.02rem;line-height:1.5}

/* ---------- tab nav ---------- */
.tabs{
  display:flex; gap:6px; flex-wrap:wrap;
  padding:14px 0;
  position:sticky; top:0; z-index:20;
  background:var(--nav-bg-translucent);
  backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.tab-btn{
  background:transparent;
  border:1px solid transparent;
  color:var(--ink-soft);
  padding:9px 16px;
  border-radius:var(--radius-pill);
  cursor:pointer;
  font-family:inherit;
  font-size:.87rem;
  font-weight:600;
  letter-spacing:-.005em;
  transition:background .15s ease, color .15s ease, border-color .15s ease, box-shadow .15s ease;
  white-space:nowrap;
}
.tab-btn:hover{background:var(--surface); border-color:var(--border); color:var(--ink)}
.tab-btn.active{
  background:var(--accent); color:var(--accent-ink); border-color:var(--accent);
  box-shadow:var(--shadow-sm);
}

/* ---------- layout / type ---------- */
main{padding:30px 0 48px}
.tab-panel{display:none}
.tab-panel.active{display:block; animation:fadeIn .28s ease}
@keyframes fadeIn{from{opacity:0; transform:translateY(4px)} to{opacity:1; transform:translateY(0)}}
h2{margin:0 0 10px; font-size:1.5rem; font-weight:800; letter-spacing:-.015em}
h3{font-size:1.08rem; font-weight:700; letter-spacing:-.01em; margin:22px 0 10px}
h4{font-size:.95rem; font-weight:700; margin:0 0 8px}
.hint{color:var(--muted); font-size:.94rem; line-height:1.6}

/* ---------- forms ---------- */
.search-row{display:flex; gap:10px; margin:16px 0}
#searchInput,#recallSearch,#scanCorrectInput,input[type="text"]{
  flex:1; padding:12px 14px;
  border:1.5px solid var(--border);
  border-radius:var(--radius-sm);
  background:var(--surface);
  color:var(--ink);
  font-size:.98rem;
  font-family:inherit;
  transition:border-color .15s ease, box-shadow .15s ease;
}
#searchInput:focus,#recallSearch:focus,#scanCorrectInput:focus{
  outline:none; border-color:var(--accent);
  box-shadow:0 0 0 3px var(--accent-soft);
}
#searchBtn,#scanCorrectBtn{
  background:var(--accent); color:var(--accent-ink);
  border:none; padding:12px 22px;
  border-radius:var(--radius-sm);
  cursor:pointer; font-weight:700; font-size:.95rem;
  font-family:inherit;
  box-shadow:var(--shadow-sm);
  transition:filter .15s ease, transform .1s ease;
}
#searchBtn:hover,#scanCorrectBtn:hover{filter:brightness(1.08)}
#searchBtn:active,#scanCorrectBtn:active{transform:translateY(1px)}

.file-btn{
  display:inline-flex; align-items:center; gap:8px;
  background:var(--accent); color:var(--accent-ink);
  border:none; padding:12px 22px; border-radius:var(--radius-pill);
  font-family:inherit; font-weight:700; font-size:.95rem; cursor:pointer;
  box-shadow:var(--shadow-sm);
  transition:filter .15s ease, transform .1s ease;
}
.file-btn:hover{filter:brightness(1.08)}
.file-btn:active{transform:translateY(1px)}
.file-btn:focus-visible{outline:2px solid var(--accent); outline-offset:2px}

.status{color:var(--muted); font-style:italic; font-size:.92rem}

/* ---------- tables ---------- */
.overflow{overflow-x:auto; border-radius:var(--radius-md); border:1px solid var(--border); box-shadow:var(--shadow-sm)}
table{width:100%; border-collapse:collapse; font-size:.88rem; background:var(--surface)}
th,td{text-align:left; padding:11px 14px; border-bottom:1px solid var(--border-soft)}
th{
  color:var(--muted); font-weight:700; font-size:.72rem;
  text-transform:uppercase; letter-spacing:.05em;
  background:var(--surface-2);
  position:sticky; top:0;
}
tbody tr{transition:background .1s ease}
tbody tr:hover td{background:var(--accent-soft)}
tbody tr:last-child td{border-bottom:none}

/* ---------- cards / callouts ---------- */
.card{
  background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius-md); padding:16px 18px; margin-bottom:12px;
  box-shadow:var(--shadow-sm);
}
.callout{
  background:var(--warn-bg);
  border:1px solid var(--warn-border);
  border-left:4px solid var(--warn-border);
  border-radius:var(--radius-md);
  padding:16px 18px; margin:16px 0;
  box-shadow:var(--shadow-sm);
}
.incident-card{
  background:var(--danger-bg);
  border:1px solid var(--danger-border);
  border-left:4px solid var(--danger-border);
  border-radius:var(--radius-md);
  padding:16px 18px; margin:12px 0;
  box-shadow:var(--shadow-sm);
}
.incident-card .src{color:var(--muted); font-size:.82rem; margin-bottom:0}

.lab-fail-list{padding-left:0; list-style:none; display:flex; flex-direction:column; gap:8px}
.lab-fail-list li{
  background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius-sm); padding:10px 14px; font-size:.92rem;
}

.about-grid{display:grid; grid-template-columns:1fr 1fr; gap:28px}
@media (max-width:700px){.about-grid{grid-template-columns:1fr}}
.about-grid ul{padding-left:20px; margin:0 0 4px}
.about-grid li{margin-bottom:8px; line-height:1.55}

/* ---------- badges / pills ---------- */
.badge{
  display:inline-block; padding:3px 10px; border-radius:var(--radius-pill);
  font-size:.72rem; font-weight:700; letter-spacing:.01em; margin-left:6px;
  white-space:nowrap;
}
.badge-lab{background:var(--danger-bg); color:var(--danger-border); border:1px solid var(--danger-border)}
.badge-admin{background:var(--warn-bg); color:var(--warn-border); border:1px solid var(--warn-border)}
.badge-ok{background:var(--ok-bg); color:var(--ok-border); border:1px solid var(--ok-border)}

.pill{
  display:inline-block; background:var(--surface-2); border:1px solid var(--border);
  border-radius:var(--radius-pill); padding:3px 10px; font-size:.76rem;
  margin:2px 4px 2px 0; color:var(--ink-soft);
}
.pill-btn{
  cursor:pointer; border:1.5px solid var(--accent); background:var(--accent-soft);
  color:var(--accent); font-weight:700; font-family:inherit;
  transition:background .15s ease, transform .1s ease;
}
.pill-btn:hover{background:var(--accent); color:var(--accent-ink)}
.pill-btn:active{transform:translateY(1px)}

/* ---------- scan tab specifics ---------- */
#scanPreviewWrap img{
  max-width:300px; border-radius:var(--radius-md);
  border:1px solid var(--border); box-shadow:var(--shadow-sm);
  display:block; margin:14px 0;
}
.raw-text{
  white-space:pre-wrap; background:var(--surface-2); border:1px solid var(--border);
  border-radius:var(--radius-sm); padding:12px 14px; font-size:.8rem; max-height:220px;
  overflow:auto; font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
details summary{cursor:pointer; font-weight:600; font-size:.9rem; color:var(--ink-soft); margin:14px 0 6px}
progress{width:100%; height:8px; accent-color:var(--accent); border-radius:var(--radius-pill)}
.signal-group{margin:12px 0}
.signal-group h4{margin:0 0 8px; font-size:.78rem; color:var(--muted); text-transform:uppercase; letter-spacing:.05em; font-weight:700}

/* ---------- misc ---------- */
a{color:var(--accent); text-decoration-thickness:1.5px}
code{background:var(--surface-2); padding:1px 6px; border-radius:5px; font-size:.9em}
.site-footer{color:var(--muted); font-size:.82rem; padding:28px 0 40px; line-height:1.6}
.site-footer .wrap{border-top:1px solid var(--border); padding-top:20px}

@media (max-width:600px){
  .site-header{padding:36px 0 30px}
  .site-header h1{font-size:1.6rem}
  .tabs{gap:5px}
  .tab-btn{padding:8px 13px; font-size:.82rem}
}