*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #080808;
  --surface: #111;
  --surface-hover: #1a1a1a;
  --border: #222;
  --text: #999;
  --text-bright: #fff;
  --text-muted: #555;
  --pass: #22c55e;
  --fail: #ef4444;
  --warn: #f59e0b;
  --info: #3b82f6;
  --accent: #6366f1;
  --font-body: 'DM Sans', sans-serif;
  --font-heading: 'Bebas Neue', sans-serif;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
}

.header-brand {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  letter-spacing: 0.15em;
  color: var(--text-bright);
  text-decoration: none;
}

.header-tool {
  font-family: var(--font-heading);
  font-size: 1rem;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.main {
  max-width: 1100px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

/* Dropzone */
.dropzone {
  border: 2px dashed var(--border);
  border-radius: 12px;
  background: var(--surface);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--text-muted);
  background: var(--surface-hover);
}

.dropzone-icon {
  width: 40px;
  height: 40px;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.dropzone-text {
  font-size: 0.95rem;
  color: var(--text-bright);
  margin-bottom: 0.4rem;
}

.dropzone-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Progress */
.progress-bar {
  margin-top: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.8rem 1.2rem;
}

.progress-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.progress-text {
  font-size: 0.82rem;
  color: var(--text-bright);
}

.progress-count {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.progress-track {
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  width: 0%;
  transition: width 0.3s ease;
}

/* Summary */
.summary-bar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.8rem 1.2rem;
  margin-top: 1rem;
}

.summary-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.6rem;
}

.summary-text {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-bright);
}

.summary-left { display: flex; align-items: center; gap: 1rem; }
.summary-actions { display: flex; gap: 0.5rem; }

.date-filter {
  font-family: var(--font-body);
  font-size: 0.78rem;
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-bright);
  cursor: pointer;
}
.date-filter:hover { border-color: var(--text-muted); }

.summary-pills { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.pill {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 99px;
  letter-spacing: 0.03em;
}

.pill--pass { background: rgba(34,197,94,0.15); color: var(--pass); }
.pill--fail { background: rgba(239,68,68,0.15); color: var(--fail); }
.pill--warn { background: rgba(245,158,11,0.15); color: var(--warn); }
.pill--info { background: rgba(59,130,246,0.15); color: var(--info); }

/* Buttons */
.btn-export {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.4rem 1rem;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  transition: opacity 0.15s;
}
.btn-export:hover { opacity: 0.85; }

.btn-clear-all {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
}
.btn-clear-all:hover { color: var(--text-bright); border-color: var(--text-muted); }

.btn-clear {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0 0.3rem;
  line-height: 1;
}
.btn-clear:hover { color: var(--text-bright); }

/* Table */
.results { margin-top: 1rem; }

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
  white-space: nowrap;
}

thead { position: sticky; top: 0; z-index: 2; }

th {
  background: var(--surface);
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  padding: 0.6rem 0.8rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  user-select: none;
}
th:hover { color: var(--text-bright); }
th.sorted-asc::after { content: " \25B2"; font-size: 0.6rem; }
th.sorted-desc::after { content: " \25BC"; font-size: 0.6rem; }

td {
  padding: 0.5rem 0.8rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

tr:hover td { background: var(--surface-hover); cursor: pointer; }
tr.flagged td:first-child { border-left: 3px solid var(--warn); }
tr.hw-fault td:first-child { border-left: 3px solid var(--fail); }
tr.collision td:first-child { border-left: 3px solid #f97316; }

/* Flag badges */
.flag-badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  margin: 0.1rem 0.15rem;
}

.flag-badge--LOW_BATTERY,
.flag-badge--HIGH_VIBRATION,
.flag-badge--ACCEL_CLIPPING,
.flag-badge--LOW_5V_RAIL,
.flag-badge--HAS_ERRORS,
.flag-badge--GEOFENCE_VIOLATED,
.flag-badge--TUMBLE_DETECTED,
.flag-badge--SUDDEN_POWER_LOSS { background: rgba(239,68,68,0.15); color: var(--fail); }

.flag-badge--LOW_GPS_SATS,
.flag-badge--POOR_GPS_ACCURACY,
.flag-badge--MOTOR_IMBALANCE,
.flag-badge--HIGH_CPU,
.flag-badge--EXCESSIVE_TILT,
.flag-badge--ABRUPT_LOG_END { background: rgba(245,158,11,0.15); color: var(--warn); }

.flag-badge--FLEET_OUTLIER { background: rgba(99,102,241,0.15); color: var(--accent); }
.flag-badge--UPLOAD_ERROR { background: rgba(239,68,68,0.15); color: var(--fail); }
.flag-badge--POSSIBLE_COLLISION { background: rgba(249,115,22,0.15); color: #f97316; }
.flag-badge--LIKELY_HW_FAULT { background: rgba(239,68,68,0.25); color: var(--fail); font-weight: 700; }

/* Cause badge */
.cause-badge {
  font-size: 0.68rem;
  color: var(--text);
  white-space: normal;
  line-height: 1.3;
}

/* Collision status dot */
.status-dot--collision { background: #f97316; }

/* Status dot */
.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 0.3rem;
}

.status-dot--ok { background: var(--pass); }
.status-dot--flagged { background: var(--warn); }
.status-dot--error { background: var(--fail); }

/* Detail panel */
.detail-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 480px;
  max-width: 95vw;
  height: 100vh;
  background: var(--surface);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transform: translateX(100%);
  transition: transform 0.25s ease;
  overflow: hidden;
}

.detail-panel.open { transform: translateX(0); }

.detail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.detail-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  color: var(--text-bright);
}

.detail-content {
  flex: 1;
  overflow-y: auto;
  padding: 1.2rem;
}

.detail-section { margin-bottom: 1.2rem; }

.detail-section-title {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  padding-bottom: 0.3rem;
  border-bottom: 1px solid var(--border);
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.1rem 1rem;
}

.detail-item {
  display: flex;
  justify-content: space-between;
  padding: 0.25rem 0;
  font-size: 0.78rem;
}

.detail-label { color: var(--text-muted); }
.detail-value { color: var(--text-bright); font-weight: 500; text-align: right; }
.detail-value--warn { color: var(--warn); }
.detail-value--fail { color: var(--fail); }
.detail-value--pass { color: var(--pass); }

.detail-events { font-size: 0.75rem; line-height: 1.6; }
.detail-events li { padding: 0.15rem 0; color: var(--text); list-style: none; }
.detail-events li::before { content: "\25B8 "; color: var(--text-muted); }

/* Browse buttons in dropzone */
.dropzone-buttons {
  display: flex;
  gap: 0.8rem;
  margin-top: 1.2rem;
  justify-content: center;
}

.btn-browse {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.5rem 1.2rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.btn-browse:hover { border-color: var(--text-muted); color: var(--text-bright); }
.btn-browse--folder { border-color: var(--accent); color: var(--accent); }
.btn-browse--folder:hover { background: rgba(99,102,241,0.1); }

/* Ask Claude button */
.btn-review {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.4rem 1rem;
  border-radius: 8px;
  border: 1px solid rgba(99,102,241,0.4);
  background: rgba(99,102,241,0.1);
  color: var(--accent);
  cursor: pointer;
  transition: background 0.15s;
}
.btn-review:hover { background: rgba(99,102,241,0.2); }

/* Alerts */
.alerts {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 1rem;
}

.alert {
  padding: 0.7rem 1rem;
  border-radius: 8px;
  font-size: 0.8rem;
  line-height: 1.4;
}

.alert strong { color: var(--text-bright); }

.alert--collision {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  color: var(--fail);
}

.alert--simultaneous {
  background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.3);
  color: var(--warn);
}

/* Review / Claude panel */
.review-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  padding: 2rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.spinner {
  width: 28px;
  height: 28px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.review-content {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text);
}
.review-content p { margin-bottom: 0.8rem; }
.review-content code {
  background: var(--bg);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.8rem;
}
.review-content pre {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.8rem;
  overflow-x: auto;
  margin-bottom: 0.8rem;
}
.review-content strong { color: var(--text-bright); }
.review-content ol, .review-content ul { padding-left: 1.2rem; margin-bottom: 0.8rem; }
.review-content li { margin-bottom: 0.3rem; }

.hidden { display: none !important; }

@media (max-width: 600px) {
  .main { padding: 0 1rem; }
  .header { padding: 0.8rem 1rem; }
  .detail-panel { width: 100vw; }
  .dropzone-buttons { flex-direction: column; align-items: center; }
}