:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --bg-color: #f7f8fa;
  --card-bg: #ffffff;
  --text-main: #181a21;
  --text-muted: #686e7e;
  --border-color: #d8dbe4;
  --success: #1e8e3e;
  --warning: #f59e0b;
  --error: #e11d48;
  --private-color: #8b5cf6;
  --digifello-accent: #2563eb;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,0.05), 0 4px 12px rgba(0,0,0,0.03);
}

@media (prefers-color-scheme: dark) {
  :root {
    --primary: #3b9eff;
    --primary-hover: #298beb;
    --bg-color: #1f2028;
    --card-bg: #262833;
    --text-main: #f4f5f7;
    --text-muted: #9a9fb0;
    --border-color: #3d4050;
    --success: #34d399;
    --warning: #fbbf24;
    --error: #fb7185;
    --private-color: #c084fc;
    --digifello-accent: #3b9eff;
    --shadow: 0 4px 20px rgba(0,0,0,0.3);
  }
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.5;
  padding-bottom: 60px;
}

header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 18px 24px;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-badge {
  background: linear-gradient(135deg, var(--primary), #6366f1);
  color: #fff;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 14px;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.brand-byline {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.brand-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  transition: opacity 0.2s;
}

.brand-link:hover {
  text-decoration: underline;
  opacity: 0.9;
}

h1 {
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.2px;
}

.container {
  max-width: 1200px;
  margin: 24px auto;
  padding: 0 20px;
}

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow);
  padding: 24px;
  margin-bottom: 24px;
}

/* Upload zone */
.dropzone {
  border: 2px dashed var(--primary);
  border-radius: var(--radius);
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  background: rgba(26, 115, 232, 0.02);
  transition: all 0.2s ease;
}

.dropzone:hover, .dropzone.dragover {
  background: rgba(26, 115, 232, 0.08);
  border-color: var(--primary-hover);
}

.upload-icon {
  font-size: 40px;
  margin-bottom: 12px;
  color: var(--primary);
}

.upload-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 500;
  border-radius: 6px;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-hover);
}
.btn-secondary {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
}
.btn-secondary:hover {
  background: rgba(0,0,0,0.05);
}
.btn-danger {
  background: var(--error);
  color: #fff;
}
.btn-danger:hover {
  opacity: 0.9;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  cursor: pointer;
}

.error-banner {
  background: rgba(217, 48, 37, 0.1);
  border: 1px solid var(--error);
  color: var(--error);
  padding: 12px 16px;
  border-radius: 6px;
  margin-top: 14px;
  display: none;
}

/* Progress bar container */
.progress-container {
  display: none;
  animation: fadeIn 0.3s ease;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 12px;
}

.progress-track {
  width: 100%;
  height: 20px;
  background: var(--border-color);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 16px;
  position: relative;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #1a73e8, #34a853);
  transition: width 0.3s ease;
}

.counters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.counter-box {
  padding: 12px;
  border-radius: 8px;
  background: var(--bg-color);
  text-align: center;
  border: 1px solid var(--border-color);
}

.counter-val {
  font-size: 20px;
  font-weight: 700;
}

.counter-label {
  font-size: 12px;
  color: var(--text-muted);
}

.live-feed-box {
  max-height: 120px;
  overflow-y: auto;
  font-family: monospace;
  font-size: 13px;
  background: var(--bg-color);
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
}

/* Dashboard */
.summary-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.summary-card {
  background: var(--card-bg);
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  text-align: center;
}

.chart-section {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  align-items: center;
  justify-content: center;
  margin: 24px 0;
}

.chart-legend {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
  max-height: 280px;
  overflow-y: auto;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 3px 6px;
  border-radius: 4px;
}
.legend-item:hover {
  background: rgba(0,0,0,0.05);
}

.legend-color {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  display: inline-block;
}

/* Score Buckets */
.bucket-section {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 16px;
  overflow: hidden;
  background: var(--card-bg);
}

.bucket-header {
  padding: 14px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
  background: rgba(0,0,0,0.01);
  border-bottom: 1px solid transparent;
}

.bucket-header:hover {
  background: rgba(0,0,0,0.03);
}

.bucket-header.open {
  border-bottom-color: var(--border-color);
}

.bucket-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
}

.bucket-badge {
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.bucket-body {
  padding: 16px;
  display: none;
}

.bucket-body.open {
  display: block;
}

.profile-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin-top: 10px;
}

.profile-table th, .profile-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
}

.profile-table tr:hover {
  background: rgba(0,0,0,0.02);
}

.badge-tag {
  display: inline-block;
  background: rgba(26, 115, 232, 0.1);
  color: var(--primary);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 11px;
  margin: 2px;
}

.badge-tag.missing {
  background: rgba(217, 48, 37, 0.1);
  color: var(--error);
}

.score-diff {
  font-weight: 600;
  font-size: 12px;
}
.score-diff.up {
  color: var(--success);
}
.score-diff.same {
  color: var(--text-muted);
}

/* Footer */
footer {
  text-align: center;
  padding: 30px 20px;
  color: var(--text-muted);
  font-size: 13px;
  border-top: 1px solid var(--border-color);
  margin-top: 40px;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}