:root {
  --bg: #0a0b12;
  --surface: rgba(255, 255, 255, 0.03);
  --surface-border: rgba(255, 255, 255, 0.08);
  --scanner-bg: #050509;
  --text: #f1f1f4;
  --text-dim: rgba(241, 241, 244, 0.62);
  --text-faint: rgba(241, 241, 244, 0.38);
  --accent: #8b7cf6;
  --found: #34d399;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 2.5rem;
}

.app-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding-bottom: 1.75rem;
}

.app-header__brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex: none;
}

.app-header__name {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.logo-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}

.app-header__rule {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--surface-border), transparent 90%);
}

.app-header__link {
  flex: none;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}

.app-header__link:hover {
  text-decoration: underline;
}

.app-header__tag {
  flex: none;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 900px) {
  .layout {
    grid-template-columns: 3fr 2fr;
    align-items: start;
  }
}

/* Scanner card */

.scanner {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--scanner-bg);
  border-radius: 1.25rem;
  overflow: hidden;
  border: 1px solid var(--surface-border);
  box-shadow: 0 24px 60px -24px rgba(0, 0, 0, 0.7);
}

.scanner video,
.scanner canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.scanner canvas {
  pointer-events: none;
}

.scanner::after {
  content: "";
  position: absolute;
  left: 6%;
  right: 6%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  box-shadow: 0 0 12px var(--accent);
  z-index: 1;
  pointer-events: none;
  animation: scan-line 2.4s ease-in-out infinite;
}

.scanner.is-found::after {
  animation-play-state: paused;
  opacity: 0;
}

@keyframes scan-line {
  0% {
    top: 8%;
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  50% {
    top: 92%;
  }
  90% {
    opacity: 1;
  }
  100% {
    top: 8%;
    opacity: 0;
  }
}

.frame-corner {
  position: absolute;
  width: 26px;
  height: 26px;
  border: 3px solid var(--accent);
  pointer-events: none;
  z-index: 2;
  opacity: 0.7;
  transition: border-color 0.3s ease;
}

.frame-corner--tl {
  top: 12px;
  left: 12px;
  border-right: none;
  border-bottom: none;
  border-top-left-radius: 10px;
}

.frame-corner--tr {
  top: 12px;
  right: 12px;
  border-left: none;
  border-bottom: none;
  border-top-right-radius: 10px;
}

.frame-corner--bl {
  bottom: 12px;
  left: 12px;
  border-right: none;
  border-top: none;
  border-bottom-left-radius: 10px;
}

.frame-corner--br {
  bottom: 12px;
  right: 12px;
  border-left: none;
  border-top: none;
  border-bottom-right-radius: 10px;
}

.scanner.is-found .frame-corner {
  border-color: var(--found);
  opacity: 1;
}

.status-pill {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  background: rgba(10, 11, 18, 0.72);
  border: 1px solid var(--surface-border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  font-size: 0.8rem;
  color: var(--text-dim);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-faint);
  animation: pulse 1.6s ease-in-out infinite;
}

.status-pill.is-found .status-dot {
  background: var(--found);
  box-shadow: 0 0 8px var(--found);
  animation: none;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.4;
    transform: scale(0.7);
  }
}

.auto-tag {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 3;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
}

/* Side panel */

.side-panel {
  border-radius: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  padding: 1.75rem;
  min-height: 100%;
}

.hint h1,
.info-card h1 {
  margin: 0 0 0.75rem;
  font-size: 1.85rem;
  font-weight: 700;
  line-height: 1.2;
}

.hint p,
.info-card p {
  margin: 0 0 1.5rem;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-dim);
}

.hint-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.hint-list li {
  display: flex;
  gap: 0.9rem;
  font-size: 0.95rem;
  color: var(--text-dim);
}

.hint-list__index {
  flex: none;
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
}

.info-card[hidden] {
  display: none;
}

.info-card.is-visible {
  animation: fade-in-up 0.4s ease both;
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.info-card__image-wrap {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 0.9rem;
  overflow: hidden;
  background: #fff;
  margin-bottom: 1.1rem;
}

.info-card__image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.info-card__tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(139, 124, 246, 0.14);
  border-radius: 999px;
  padding: 0.2rem 0.6rem;
  margin-bottom: 0.6rem;
}

.info-card p {
  white-space: pre-wrap;
  margin-bottom: 0;
}