:root {
  --bg: #f3f6fb;
  --card: #ffffff;
  --ink: #182235;
  --muted: #657187;
  --line: #dfe6f0;
  --primary: #0b72ff;
  --danger: #d93131;
  --ok: #0baf62;
  --warn: #ff9f1c;
  --dark: #1f2937;
  --shadow: 0 12px 35px rgba(24, 34, 53, 0.10);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #eaf1ff 0%, var(--bg) 55%);
}
.app-shell {
  width: min(1150px, 100%);
  margin: 0 auto;
  padding: 18px;
}
.hero-card, .panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
}
.hero-card {
  padding: 22px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 16px;
}
.eyebrow {
  margin: 0 0 8px;
  color: var(--primary);
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: 12px;
}
h1 { margin: 0 0 8px; font-size: clamp(24px, 5vw, 42px); }
h2 { margin: 0 0 12px; font-size: 20px; }
.muted { color: var(--muted); margin: 0; line-height: 1.5; }
.status-pill {
  border-radius: 999px;
  padding: 10px 14px;
  background: #eef4ff;
  color: var(--primary);
  font-weight: 700;
  white-space: nowrap;
}
.status-pill.bad { background: #fff0f0; color: var(--danger); }
.status-pill.good { background: #eafff4; color: var(--ok); }
.panel { padding: 18px; margin-bottom: 16px; }
label { display: block; font-weight: 700; margin-bottom: 8px; }
.target-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
input[type="text"], select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
  font-size: 16px;
  outline: none;
  background: #fff;
}
input[type="text"] { font-size: 18px; }
input[type="text"]:focus, select:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(11,114,255,.12); }
.btn {
  border: 0;
  border-radius: 14px;
  padding: 13px 16px;
  font-weight: 800;
  font-size: 15px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
}
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn.primary { background: var(--primary); color: #fff; }
.btn.secondary { background: #eef4ff; color: var(--primary); }
.btn.danger { background: #fff0f0; color: var(--danger); }
.btn.dark { background: var(--dark); color: #fff; }
.file-btn { background: #f4f7fb; color: var(--ink); position: relative; overflow: hidden; }
.file-btn input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.quick-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.quick-chip {
  border: 1px solid var(--line);
  background: #f8fbff;
  border-radius: 999px;
  padding: 8px 10px;
  cursor: pointer;
  font-weight: 700;
  color: var(--ink);
}
.item-card {
  margin-top: 14px;
  padding: 15px;
  border: 1px dashed #cbd7e6;
  border-radius: 16px;
  background: #fbfdff;
}
.item-title { font-size: 19px; font-weight: 900; margin-bottom: 8px; }
.item-meta { color: var(--muted); line-height: 1.55; }
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 12px; }
.control-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}
.control-card, .switch-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 12px;
  background: #fbfdff;
  margin: 0;
}
.control-card span, .switch-card span { display: block; font-weight: 800; margin-bottom: 8px; }
.control-card small { color: var(--muted); display: block; margin-top: 6px; }
.switch-card { display: flex; align-items: center; gap: 10px; }
.switch-card span { margin: 0; }
.switch-card input { width: 22px; height: 22px; }
.viewer {
  position: relative;
  width: 100%;
  height: min(68vh, 620px);
  min-height: 360px;
  background: #08111f;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid #101827;
}
.viewer video, .viewer img, .viewer canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.viewer video, .viewer img { object-fit: contain; display: none; }
.viewer canvas { pointer-events: none; }
.center-hint {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.75);
  font-weight: 900;
  text-align: center;
  padding: 20px;
}
.found-banner {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  padding: 12px 22px;
  background: #00ff88;
  color: #062516;
  border-radius: 999px;
  font-weight: 1000;
  letter-spacing: .06em;
  box-shadow: 0 0 0 0 rgba(0,255,136,.65);
  display: none;
  animation: pulse 1s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(0,255,136,.65); }
  70% { box-shadow: 0 0 0 18px rgba(0,255,136,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,255,136,0); }
}
.exit-fullscreen {
  position: absolute;
  right: 12px;
  top: 12px;
  display: none;
  border: 0;
  border-radius: 999px;
  padding: 10px 14px;
  background: rgba(255,255,255,.92);
  color: #111827;
  font-weight: 900;
  z-index: 5;
}
.viewer.fullscreen-mode {
  position: fixed;
  z-index: 9999;
  inset: 0;
  width: 100vw;
  height: 100dvh;
  min-height: 100dvh;
  border-radius: 0;
  border: 0;
}
.viewer.fullscreen-mode .exit-fullscreen { display: block; }
.viewer.fullscreen-mode video, .viewer.fullscreen-mode img { object-fit: contain; }
.viewer.fullscreen-mode .found-banner { top: 22px; font-size: 18px; padding: 14px 26px; }
.scan-hud {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
  margin-top: 12px;
}
.scan-status {
  padding: 14px 16px;
  border-radius: 16px;
  background: #fff8e8;
  color: #8a5200;
  font-weight: 800;
}
.scan-status.ok { background: #eafff4; color: #067642; }
.scan-status.bad { background: #fff0f0; color: var(--danger); }
.scan-status.warn { background: #fff8e8; color: #8a5200; }
.scan-stats {
  padding: 14px 16px;
  border-radius: 16px;
  background: #eef4ff;
  color: #174075;
  font-weight: 800;
  white-space: nowrap;
}
.detected-list { display: grid; gap: 8px; }
.detected-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 14px;
  background: #f7f9fc;
  border: 1px solid var(--line);
  font-weight: 800;
}
.detected-row.match { background: #eafff4; border-color: rgba(11,175,98,.35); color: #067642; }
.detected-row.candidate { background: #fff8e8; border-color: rgba(255,159,28,.45); color: #8a5200; }
.help-panel ol { margin: 0; padding-left: 22px; line-height: 1.7; color: var(--muted); }
@media (max-width: 850px) {
  .hero-card { display: block; }
  .status-pill { display: inline-block; margin-top: 12px; white-space: normal; }
  .target-row { grid-template-columns: 1fr; }
  .toolbar .btn { flex: 1 1 160px; }
  .control-grid { grid-template-columns: 1fr; }
  .viewer { height: 62vh; min-height: 350px; }
  .scan-hud { grid-template-columns: 1fr; }
  .scan-stats { white-space: normal; }
}