/* ── Reset & base ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0f1117;
  --surface:   #1a1d27;
  --border:    #2e3347;
  --accent:    #3b82f6;
  --accent-h:  #2563eb;
  --ok:        #22c55e;
  --warn:      #f59e0b;
  --err:       #ef4444;
  --text:      #e2e8f0;
  --text-dim:  #94a3b8;
  --radius:    10px;
}

body {
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

/* ── Header ───────────────────────────────────────────────────────────── */
.app-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}
.app-header h1   { font-size: 1.15rem; font-weight: 700; }
.app-header .subtitle { font-size: 0.83rem; color: var(--text-dim); }

/* ── Step containers (single column, full width) ──────────────────────── */
.step-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
}

/* ── Card ─────────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.card h2 {
  font-size: 0.92rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  margin-bottom: 0.9rem;
}

/* ── Token gate ───────────────────────────────────────────────────────── */
#token-gate {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.85);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}
.token-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  width: 340px;
  text-align: center;
}
.token-box h2 { margin-bottom: 1rem; }
.token-box p  { font-size: 0.85rem; color: var(--text-dim); margin-bottom: 1rem; }
.token-error  { color: var(--err); font-size: 0.85rem; margin-top: 0.5rem; display: none; }

/* ── Form elements ────────────────────────────────────────────────────── */
label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 0.2rem;
  margin-top: 0.6rem;
}
label:first-child { margin-top: 0; }

input[type="text"],
input[type="number"],
input[type="password"],
select {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 0.45rem 0.65rem;
  font-size: 0.88rem;
  width: 100%;
}
input[type="number"] { width: auto; }
input:focus, select:focus { outline: none; border-color: var(--accent); }

button.btn-primary {
  display: block;
  width: 100%;
  margin-top: 1rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.65rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
button.btn-primary:hover    { background: var(--accent-h); }
button.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

button.btn-sm {
  background: var(--border);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0.38rem 0.65rem;
  font-size: 0.8rem;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.12s;
}
button.btn-sm:hover  { background: #3a4060; }
button.btn-sm.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ── Settings strip ───────────────────────────────────────────────────── */
.settings-strip { padding: 0.9rem 1.25rem; }

.settings-row {
  display: flex;
  gap: 1rem;
  align-items: flex-end;
  flex-wrap: wrap;
}

/* Upload drop zone (compact) */
#drop-zone {
  flex: 0 0 auto;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 0.6rem 1rem;
  text-align: center;
  cursor: pointer;
  min-width: 120px;
  transition: border-color 0.15s, background 0.15s;
}
#drop-zone.drag-over, #drop-zone:hover {
  border-color: var(--accent);
  background: rgba(59,130,246,0.06);
}
#drop-zone .drop-icon { font-size: 1.6rem; }
#drop-zone p          { font-size: 0.75rem; color: var(--text-dim); margin-top: 0.15rem; }
#drop-zone .preview-img {
  max-height: 60px;
  max-width: 110px;
  border-radius: 4px;
  margin-top: 0.3rem;
  object-fit: contain;
}

.settings-params {
  display: flex;
  gap: 1rem;
  align-items: flex-end;
  flex-wrap: wrap;
  flex: 1;
}
.settings-params > div { display: flex; flex-direction: column; }

/* ── Calibration toolbar ─────────────────────────────────────────────── */
.cal-toolbar {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  flex-wrap: wrap;
  margin-top: 0.85rem;
}
.cal-left {
  display: flex;
  gap: 0.45rem;
  align-items: center;
  flex-wrap: wrap;
  flex: 1;
}
.cal-right { flex: 0 0 auto; }

/* ── Calibration status notices ──────────────────────────────────────── */
.cal-notice {
  background: rgba(245,158,11,0.1);
  border: 1px solid var(--warn);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  font-size: 0.8rem;
  color: var(--warn);
}
.cal-ok {
  background: rgba(34,197,94,0.1);
  border: 1px solid var(--ok);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  font-size: 0.8rem;
  color: var(--ok);
}

/* ── Identification banner ────────────────────────────────────────────── */
.id-banner {
  background: rgba(59,130,246,0.1);
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 0.55rem 0.8rem;
  font-size: 0.85rem;
}
.id-banner strong { color: var(--accent); }

/* ── Result image ─────────────────────────────────────────────────────── */
#overlay-img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.img-caption {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 0.4rem;
}

/* ── Results table ────────────────────────────────────────────────────── */
.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.results-table th {
  text-align: left;
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--border);
}
.results-table td {
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid rgba(46,51,71,0.6);
  vertical-align: middle;
}
.results-table tr:last-child td { border-bottom: none; }
.results-table tbody tr { cursor: pointer; }
.results-table tbody tr:hover   { background: rgba(59,130,246,0.07); }
.results-table tbody tr.selected { background: rgba(59,130,246,0.14); }

/* ── Badges ───────────────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  border-radius: 4px;
  padding: 0.15rem 0.45rem;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-ok   { background: rgba(34,197,94,0.2);   color: var(--ok);   }
.badge-err  { background: rgba(239,68,68,0.2);   color: var(--err);  }
.badge-warn { background: rgba(245,158,11,0.15); color: var(--warn); }

/* ── Loading indicator ───────────────────────────────────────────────── */
#loading {
  display: none;
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem;
  text-align: center;
  color: var(--text-dim);
}
.spinner {
  display: inline-block;
  width: 28px; height: 28px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin-bottom: 0.5rem;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Error notice ────────────────────────────────────────────────────── */
#error-notice {
  display: none;
  background: rgba(239,68,68,0.1);
  border: 1px solid var(--err);
  border-radius: 6px;
  padding: 0.65rem 0.8rem;
  color: var(--err);
  font-size: 0.85rem;
  margin-top: 0.75rem;
}