:root {
  --bg: #090d16;
  --card-bg: rgba(22, 27, 46, 0.9);
  --border: rgba(255, 255, 255, 0.08);
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --accent: #38bdf8;
  --green: #10b981;
  --yellow: #f59e0b;
  --red: #ef4444;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-tap-highlight-color: transparent;
}

body {
  background-color: var(--bg);
  color: var(--text-main);
  line-height: 1.5;
  padding-bottom: 5rem;
}

.app-header {
  background: rgba(15, 23, 42, 0.95);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand svg {
  width: 28px;
  height: 28px;
  fill: var(--accent);
}

.brand h1 {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand span {
  color: var(--accent);
}

.offline-pill {
  font-size: 0.7rem;
  padding: 3px 8px;
  border-radius: 20px;
  background: rgba(16, 185, 129, 0.2);
  color: var(--green);
  font-weight: 600;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

/* Nav Tabs */
.tab-bar {
  display: flex;
  background: rgba(15, 23, 42, 0.95);
  border-top: 1px solid var(--border);
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.tab-btn {
  flex: 1;
  padding: 0.75rem 0.5rem;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 600;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  cursor: pointer;
  transition: color 0.2s;
}

.tab-btn svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

.tab-btn.active {
  color: var(--accent);
}

/* Container & Sections */
.container {
  max-width: 600px;
  margin: 0 auto;
  padding: 1rem;
}

.view-panel {
  display: none;
}

.view-panel.active {
  display: block;
}

/* Scanner View */
.scanner-box {
  background: #000;
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  aspect-ratio: 1/1;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  margin-bottom: 1.25rem;
}

#scanner-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#scanner-canvas {
  display: none;
}

.scan-reticle {
  position: absolute;
  width: 70%;
  height: 70%;
  border: 2px solid var(--accent);
  border-radius: 12px;
  box-shadow: 0 0 0 4000px rgba(0, 0, 0, 0.55);
  pointer-events: none;
}

.scan-laser {
  width: 100%;
  height: 2px;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  position: absolute;
  top: 0;
  animation: scanAnim 2s infinite ease-in-out;
}

@keyframes scanAnim {
  0% { top: 0%; opacity: 0.8; }
  50% { top: 98%; opacity: 1; }
  100% { top: 0%; opacity: 0.8; }
}

.scanner-hint {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(15, 23, 42, 0.85);
  color: var(--text-main);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  backdrop-filter: blur(6px);
  pointer-events: none;
  white-space: nowrap;
  z-index: 10;
  transition: opacity 0.3s;
}

.btn-torch {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(15, 23, 42, 0.8);
  color: #fff;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  backdrop-filter: blur(6px);
  z-index: 20;
}

.btn-torch.active {
  background: var(--yellow);
  color: #000;
}

.btn-demo {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.15), rgba(99, 102, 241, 0.15));
  border: 1px solid rgba(56, 189, 248, 0.4);
  color: var(--accent);
  width: 100%;
  font-weight: 600;
}

.btn-demo:hover {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.25), rgba(99, 102, 241, 0.25));
  border-color: var(--accent);
}

.scanner-box.flash-success {
  animation: flashBorder 0.6s ease-out;
}

@keyframes flashBorder {
  0% { border-color: var(--green); box-shadow: 0 0 20px var(--green); }
  100% { border-color: var(--border); box-shadow: none; }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.85rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: opacity 0.2s, transform 0.1s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--accent);
  color: #0f172a;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  border: 1px solid var(--border);
}

.paste-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem;
  margin-top: 1rem;
}

.paste-card h3 {
  font-size: 0.95rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.paste-input {
  width: 100%;
  padding: 0.75rem;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-main);
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
  font-family: monospace;
}

/* Scorecard UI */
.hero-score {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.9), rgba(15, 23, 42, 0.95));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 8px 25px rgba(0,0,0,0.4);
}

.score-badge-circle {
  width: 85px;
  height: 85px;
  border-radius: 50%;
  border: 5px solid var(--green);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.3);
  flex-shrink: 0;
}

.score-val {
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--green);
  line-height: 1;
}

.score-max {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.hero-text h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--green);
  margin-bottom: 0.2rem;
}

.hero-text p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

/* Collapsible Tile Cards */
.card.collapsible {
  padding: 0;
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.card.collapsible:hover {
  border-color: rgba(56, 189, 248, 0.4);
}

.card-header {
  padding: 0.95rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
  background: rgba(30, 41, 59, 0.45);
  transition: background 0.2s;
  gap: 0.75rem;
}

.card-header:hover {
  background: rgba(30, 41, 59, 0.85);
}

.card-header-left {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex: 1;
  min-width: 0;
  flex-wrap: wrap;
}

.card-header-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent);
}

.card-header-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-header-right {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.chevron-icon {
  width: 20px;
  height: 20px;
  fill: var(--text-muted);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), fill 0.2s;
}

.card.collapsible.open .chevron-icon {
  transform: rotate(180deg);
  fill: var(--accent);
}

.card-body {
  padding: 0.5rem 1.25rem 1.25rem 1.25rem;
  border-top: 1px solid var(--border);
}

.card.collapsible.collapsed .card-body {
  display: none;
}

.scorecard-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 1.25rem 0 0.75rem 0;
  padding: 0 0.25rem;
}

.scorecard-section-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.btn-toggle-all {
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px 10px;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

.btn-toggle-all:hover {
  background: rgba(56, 189, 248, 0.1);
  border-color: var(--accent);
}

.card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
  margin-bottom: 0.75rem;
}

.spec-row {
  display: flex;
  justify-content: space-between;
  padding: 0.4rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  font-size: 0.88rem;
}

.spec-label {
  color: var(--text-muted);
}

.spec-val {
  font-weight: 600;
  text-align: right;
}

.status-pill {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 12px;
  font-weight: 700;
}

.pill-green { background: rgba(16, 185, 129, 0.2); color: var(--green); }
.pill-yellow { background: rgba(245, 158, 11, 0.2); color: var(--yellow); }
.pill-red { background: rgba(239, 68, 68, 0.2); color: var(--red); }

/* Notice Callout Box */
.notice-box {
  background: rgba(56, 189, 248, 0.1);
  border-left: 4px solid var(--accent);
  padding: 0.85rem;
  border-radius: 8px;
  font-size: 0.85rem;
  margin-top: 0.75rem;
}

.notice-title {
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.2rem;
}

/* Marketplace Badge Preview */
.badge-preview-wrap {
  text-align: center;
  margin: 1.5rem 0;
  padding: 1.5rem;
  background: rgba(0,0,0,0.4);
  border-radius: 12px;
  border: 1px dashed var(--border);
}

.copy-box {
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem;
  font-family: monospace;
  font-size: 0.8rem;
  word-break: break-all;
  margin-bottom: 1rem;
}