:root {
  color-scheme: dark;
  --orange: #ff6b3d;
  --orange-bright: #ff8b5c;
  --ink: #f4ede6;
  --muted: #a99d93;
  --panel: #221e1b;
  --deep: #171412;
  --line: rgba(255, 107, 61, .3);
  --success: #55d98a;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; margin: 0; }
body { background: var(--deep); color: var(--ink); }
button { font: inherit; }

.scanner-shell { min-height: 100dvh; }
.scanner-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  padding: calc(12px + env(safe-area-inset-top)) 18px 12px;
  border-bottom: 1px solid var(--line);
  background: rgba(19, 17, 15, .94);
  backdrop-filter: blur(18px);
}
.brand img { display: block; width: 155px; max-width: 48vw; }
.counter { display: grid; text-align: right; }
.counter strong { color: var(--orange); font: 700 2rem/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.counter span { margin-top: 4px; color: var(--muted); font: 600 .62rem/1.2 ui-monospace, monospace; letter-spacing: .12em; text-transform: uppercase; }

.camera-panel, .results-panel { padding: 24px 18px; }
.camera-copy { max-width: 38rem; margin: 0 auto 18px; }
.eyebrow { margin: 0 0 6px; color: var(--orange); font: 700 .7rem/1.3 ui-monospace, monospace; letter-spacing: .15em; text-transform: uppercase; }
h1, h2 { margin: 0; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: -.04em; }
h1 { font-size: clamp(1.8rem, 8vw, 3.2rem); line-height: 1.05; }
h2 { font-size: clamp(1.35rem, 6vw, 2rem); }
.camera-copy > p:last-child { margin: 12px 0 0; color: var(--muted); line-height: 1.55; }

.camera-stage {
  position: relative;
  width: min(100%, 640px);
  min-height: 52dvh;
  margin: 0 auto;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #050504;
}
#camera { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.scan-frame {
  position: absolute;
  top: 50%; left: 50%;
  width: min(68vw, 310px);
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  border: 2px solid var(--orange);
  border-radius: 18px;
  box-shadow: 0 0 0 999px rgba(0, 0, 0, .2);
}
.scan-frame::before, .scan-frame::after, .scan-frame span::before, .scan-frame span::after {
  content: "";
  position: absolute;
  width: 42px;
  height: 42px;
  border-color: var(--orange-bright);
}
.scan-frame::before { top: -3px; left: -3px; border-top: 6px solid; border-left: 6px solid; border-radius: 15px 0 0; }
.scan-frame::after { top: -3px; right: -3px; border-top: 6px solid; border-right: 6px solid; border-radius: 0 15px 0 0; }
.scan-frame span::before { bottom: -3px; left: -3px; border-bottom: 6px solid; border-left: 6px solid; border-radius: 0 0 0 15px; }
.scan-frame span::after { bottom: -3px; right: -3px; border-bottom: 6px solid; border-right: 6px solid; border-radius: 0 0 15px; }
.scan-frame[data-state="success"] { border-color: var(--success); box-shadow: 0 0 0 999px rgba(0, 0, 0, .2), 0 0 28px rgba(85, 217, 138, .8); }
.scan-frame[data-state="success"]::before,
.scan-frame[data-state="success"]::after,
.scan-frame[data-state="success"] span::before,
.scan-frame[data-state="success"] span::after { border-color: var(--success); }
.camera-status {
  position: absolute;
  left: 12px; right: 12px; bottom: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  background: rgba(12, 10, 9, .86);
  color: var(--ink);
  font: 700 .76rem/1.3 ui-monospace, monospace;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.camera-status[data-state="success"] { background: rgba(13, 83, 43, .92); color: #d7ffe7; }
.camera-status[data-state="duplicate"] { background: rgba(129, 72, 4, .94); color: #fff1cf; }
.camera-status[data-state="error"] { background: rgba(116, 27, 24, .94); color: #ffe1dd; }

.camera-actions, .results-actions { display: flex; gap: 10px; width: min(100%, 640px); margin: 14px auto 0; }
.button { min-height: 48px; padding: 11px 16px; border: 1px solid transparent; border-radius: 10px; font: 700 .78rem/1 ui-monospace, monospace; letter-spacing: .04em; }
.button:disabled { opacity: .38; }
.button--primary { flex: 1; background: var(--orange); color: #17110e; }
.button--secondary { border-color: rgba(255,255,255,.16); background: #2b2622; color: var(--ink); }
.button--danger { border-color: rgba(255,107,61,.5); background: transparent; color: var(--orange-bright); }
.privacy-note, .csv-note { margin: 10px auto 0; color: var(--muted); font-size: .76rem; text-align: center; }

.results-panel { border-top: 1px solid rgba(255,255,255,.07); background: var(--panel); }
.results-heading { display: flex; align-items: end; justify-content: space-between; gap: 12px; max-width: 720px; margin: 0 auto 18px; }
.autosave { color: var(--success); font: 700 .68rem/1 ui-monospace, monospace; text-transform: uppercase; letter-spacing: .08em; }
.empty-state { display: grid; gap: 6px; max-width: 720px; margin: 0 auto; padding: 34px 20px; border: 1px dashed rgba(255,255,255,.14); border-radius: 12px; color: var(--muted); text-align: center; }
.empty-state[hidden] { display: none; }
.empty-state strong { color: var(--ink); }
.device-list { display: grid; gap: 8px; max-width: 720px; margin: 0 auto; padding: 0; list-style: none; }
.device-row { display: grid; grid-template-columns: 38px 1fr auto auto; align-items: center; gap: 8px; min-height: 54px; padding: 7px 8px 7px 12px; border: 1px solid rgba(255,255,255,.1); border-radius: 10px; background: #181513; }
.device-index { color: var(--muted); font: 600 .72rem/1 ui-monospace, monospace; }
.device-id { overflow: hidden; font: 700 clamp(.82rem, 4vw, 1rem)/1 ui-monospace, monospace; text-overflow: ellipsis; }
.icon-button { min-width: 42px; min-height: 38px; border: 1px solid rgba(255,255,255,.13); border-radius: 8px; background: #2a2521; color: var(--ink); }
.icon-button--remove { color: var(--orange-bright); }
.results-actions { max-width: 720px; flex-wrap: wrap; }
.results-actions .button--primary { min-width: 150px; }
code { color: var(--orange-bright); }
.toast { position: fixed; z-index: 40; left: 50%; bottom: calc(22px + env(safe-area-inset-bottom)); transform: translate(-50%, 30px); max-width: calc(100vw - 32px); padding: 12px 18px; border-radius: 99px; background: #f4ede6; color: #171412; font-weight: 700; opacity: 0; pointer-events: none; transition: .2s ease; }
.toast.is-visible { transform: translate(-50%, 0); opacity: 1; }

@media (min-width: 900px) {
  .scanner-shell { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(390px, .95fr); grid-template-rows: auto 1fr; }
  .scanner-header { grid-column: 1 / -1; }
  .camera-panel { padding: 34px; }
  .results-panel { border-top: 0; border-left: 1px solid rgba(255,255,255,.07); padding: 34px; }
  .camera-stage { min-height: 620px; }
}