:root {

  --bg-color: #080A12;
  --bg-color-2: #101424;
  --card-bg: #0F1322;
  --card-bg-elevated: #161C30;
  --text-primary: #F0F4FC;
  --text-secondary: #B4C0D8;
  --text-muted: #7E8DA8;
  --border-color: rgba(91, 143, 249, 0.14);
  --border-light: rgba(255, 255, 255, 0.06);
  --hover-bg: #192138;

  --science-accent: #2F6AE0;
  --science-accent-light: #5B8FF9;
  --science-glow: rgba(47, 106, 224, 0.30);
  --cyan-accent: #00D2FF;
  --cyan-glow: rgba(0, 210, 255, 0.25);
  --primary-color: var(--science-accent-light);
  --primary-hover: var(--cyan-accent);
  --on-science: #FFFFFF;

  --bronze-color: #CD7F32;
  --bronze-bg: rgba(205, 127, 50, 0.15);
  --silver-color: #A8B2C1;
  --silver-bg: rgba(168, 178, 193, 0.15);
  --gold-layer-color: #FFD700;
  --gold-layer-bg: rgba(255, 215, 0, 0.15);

  --success-color: #3DBA87;
  --success-bg: rgba(61, 186, 135, 0.14);
  --danger-color: #F05D5E;
  --danger-bg: rgba(240, 93, 94, 0.14);
  --warning-color: #F5A623;
  --warning-bg: rgba(245, 166, 35, 0.14);
  --info-color: #00D2FF;
  --info-bg: rgba(0, 210, 255, 0.12);

  --shadow-soft: inset 0 1px 0 rgba(255, 255, 255, 0.05), 0 2px 6px rgba(0, 0, 0, 0.6);
  --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(91, 143, 249, 0.2);
  --shadow-science: 0 8px 24px var(--science-glow);
  --shadow-cyan: 0 8px 24px var(--cyan-glow);
  --shadow-modal: 0 24px 60px rgba(0, 0, 0, 0.85);

  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 999px;

  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'DM Mono', monospace;

  --header-height: 66px;
}

[data-theme="light"] {
  --bg-color: #EEF2F9;
  --bg-color-2: #F5F7FD;
  --card-bg: #FFFFFF;
  --card-bg-elevated: #F6F8FC;
  --text-primary: #121A2C;
  --text-secondary: #4E5D78;
  --text-muted: #7B8BA6;
  --border-color: rgba(47, 106, 224, 0.15);
  --border-light: rgba(47, 106, 224, 0.08);
  --hover-bg: #E6EDFB;

  --science-accent: #2558BE;
  --science-accent-light: #2F6AE0;
  --science-glow: rgba(37, 88, 190, 0.18);
  --cyan-accent: #0088CC;

  --shadow-soft: 0 1px 4px rgba(18, 26, 44, 0.08);
  --shadow-hover: 0 16px 36px rgba(18, 26, 44, 0.12);
  --shadow-science: 0 8px 20px rgba(37, 88, 190, 0.16);
  --shadow-modal: 0 24px 50px rgba(18, 26, 44, 0.20);
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.3s ease, color 0.3s ease;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; }

::-webkit-scrollbar { width: 7px; height: 7px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--science-accent-light); }

#app-header {
  height: var(--header-height);
  background: color-mix(in srgb, var(--card-bg) 90%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-logo {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--science-accent-light), #153B8A);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--on-science);
  font-size: 19px;
  font-weight: 800;
  box-shadow: var(--shadow-science);
}

.brand-title-group h1 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  background: rgba(0, 210, 255, 0.12);
  color: var(--cyan-accent);
  border: 1px solid rgba(0, 210, 255, 0.3);
  font-weight: 600;
  text-transform: uppercase;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--hover-bg);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  position: relative;
}

.header-btn:hover {
  background: var(--border-color);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.noti-badge {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 8px;
  height: 8px;
  background: var(--cyan-accent);
  border-radius: 50%;
  border: 2px solid var(--card-bg);
  box-shadow: 0 0 8px var(--cyan-accent);
}

.user-profile-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 12px 4px 6px;
  background: var(--hover-bg);
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-color);
  font-size: 13px;
  font-weight: 600;
}

.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--science-accent-light), #0F285D);
  color: var(--on-science);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
}

.app-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 24px;
  max-width: 1600px;
  width: 100%;
  margin: 0 auto;
  gap: 24px;
}

.pipeline-overview-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.pipeline-overview-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--science-accent-light), var(--cyan-accent), var(--success-color));
}

.pipeline-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.pipeline-headline h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.pipeline-headline p {
  font-size: 13px;
  color: var(--text-muted);
}

.quick-stats-grid {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.stat-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  background: var(--hover-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  font-size: 13px;
}

.stat-chip i { color: var(--cyan-accent); }
.stat-chip strong { font-family: var(--font-mono); font-size: 14px; color: var(--text-primary); }

.pipeline-stepper-container {
  overflow-x: auto;
  padding: 10px 0;
}

.pipeline-stepper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-width: 850px;
  position: relative;
}

.stepper-progress-line {
  position: absolute;
  top: 24px;
  left: 50px;
  right: 50px;
  height: 3px;
  background: var(--border-color);
  z-index: 1;
}

.stepper-progress-fill {
  height: 100%;
  width: 20%;
  background: linear-gradient(90deg, var(--science-accent-light), var(--cyan-accent), var(--success-color));
  transition: width 0.4s ease;
}

.step-item {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  background: transparent;
  padding: 0 10px;
  transition: transform 0.2s ease;
}

.step-item:hover { transform: translateY(-2px); }

.step-circle {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--card-bg-elevated);
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 15px;
  font-weight: 700;
  transition: all 0.25s ease;
  box-shadow: var(--shadow-soft);
}

.step-item.active .step-circle {
  border-color: var(--cyan-accent);
  background: linear-gradient(135deg, var(--science-accent-light), var(--cyan-accent));
  color: #080A12;
  box-shadow: var(--shadow-cyan);
}

.step-item.completed .step-circle {
  border-color: var(--success-color);
  background: var(--success-bg);
  color: var(--success-color);
}

.step-text {
  text-align: center;
}

.step-code {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  display: block;
}

.step-item.active .step-code { color: var(--cyan-accent); }

.step-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
}

.step-item.active .step-title { color: var(--text-primary); font-weight: 700; }

.step-layer-tag {
  font-size: 10px;
  font-family: var(--font-mono);
  padding: 1px 6px;
  border-radius: var(--radius-pill);
  margin-top: 2px;
  display: inline-block;
}

.tag-bronze { background: var(--bronze-bg); color: var(--bronze-color); }
.tag-silver { background: var(--silver-bg); color: var(--silver-color); }
.tag-gold { background: var(--gold-layer-bg); color: var(--gold-layer-color); }
.tag-cyan { background: var(--info-bg); color: var(--cyan-accent); }

.pipeline-section {
  display: none;
  animation: fadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.pipeline-section.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-soft);
  margin-bottom: 24px;
  transition: all 0.25s ease;
}

.card:hover {
  box-shadow: var(--shadow-hover);
  border-color: color-mix(in srgb, var(--border-color) 60%, var(--cyan-accent));
}

.section-hero-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding: 20px 24px;
  border-left: 4px solid var(--cyan-accent);
}

.section-hero-info h3 {
  font-size: 1.25rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}

.section-hero-info p {
  color: var(--text-secondary);
  font-size: 14px;
  max-width: 850px;
}

.section-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--science-accent-light), #1C4BB8);
  color: #FFF;
  box-shadow: var(--shadow-science);
}

.btn-primary:hover {
  filter: brightness(1.15);
  transform: translateY(-1px);
  box-shadow: var(--shadow-cyan);
}

.btn-secondary {
  background: var(--hover-bg);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--border-color);
  color: var(--text-primary);
}

.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--cyan-accent);
  color: var(--cyan-accent);
  background: var(--info-bg);
}

.btn-danger {
  background: var(--danger-bg);
  color: var(--danger-color);
  border: 1px solid color-mix(in srgb, var(--danger-color) 30%, transparent);
}

.btn-danger:hover {
  background: var(--danger-color);
  color: #FFF;
}

.btn-success {
  background: var(--success-bg);
  color: var(--success-color);
  border: 1px solid color-mix(in srgb, var(--success-color) 30%, transparent);
}

.btn-success:hover {
  background: var(--success-color);
  color: #FFF;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
  gap: 24px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.metric-box {
  background: var(--card-bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  position: relative;
  overflow: hidden;
}

.metric-box .label {
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.metric-box .value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.metric-box .desc {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.table-container {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--card-bg);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  text-align: left;
}

.data-table th {
  background: var(--card-bg-elevated);
  color: var(--text-secondary);
  font-weight: 700;
  padding: 12px 16px;
  font-size: 12px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-primary);
  vertical-align: middle;
}

.data-table tbody tr:hover {
  background: var(--hover-bg);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-mono);
}

.pill-success { background: var(--success-bg); color: var(--success-color); border: 1px solid color-mix(in srgb, var(--success-color) 30%, transparent); }
.pill-warning { background: var(--warning-bg); color: var(--warning-color); border: 1px solid color-mix(in srgb, var(--warning-color) 30%, transparent); }
.pill-danger { background: var(--danger-bg); color: var(--danger-color); border: 1px solid color-mix(in srgb, var(--danger-color) 30%, transparent); }
.pill-info { background: var(--info-bg); color: var(--cyan-accent); border: 1px solid color-mix(in srgb, var(--cyan-accent) 30%, transparent); }

.score-gauge {
  height: 6px;
  background: var(--border-color);
  border-radius: var(--radius-pill);
  overflow: hidden;
  margin-top: 4px;
}

.score-gauge-fill {
  height: 100%;
  border-radius: var(--radius-pill);
}

.dropzone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 36px 20px;
  text-align: center;
  background: var(--hover-bg);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.dropzone:hover {
  border-color: var(--cyan-accent);
  background: var(--info-bg);
}

.dropzone i {
  font-size: 2.2rem;
  color: var(--cyan-accent);
}

.code-block {
  background: #060810;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: #B4C0D8;
  overflow-x: auto;
  line-height: 1.5;
}

.lineage-graph-box {
  background: #060810;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  overflow-x: auto;
  gap: 16px;
}

.lineage-node {
  background: var(--card-bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  text-align: center;
  min-width: 140px;
}

.lineage-arrow {
  color: var(--cyan-accent);
  font-size: 18px;
}

#observation-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 380px;
  max-width: 90vw;
  background: var(--card-bg-elevated);
  border-left: 1px solid var(--border-color);
  box-shadow: var(--shadow-modal);
  z-index: 1000;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
}

#observation-drawer.open {
  transform: translateX(0);
}

.drawer-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.drawer-header h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.event-log-card {
  background: var(--hover-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 13px;
  border-left: 3px solid var(--cyan-accent);
}

.event-log-time {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 4px;
  display: flex;
  justify-content: space-between;
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  z-index: 1100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.open { display: flex; }

.modal-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 650px;
  width: 100%;
  box-shadow: var(--shadow-modal);
  animation: modalPop 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

@keyframes modalPop {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-body {
  padding: 24px;
  max-height: 75vh;
  overflow-y: auto;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  background: var(--card-bg-elevated);
}

@media (max-width: 768px) {
  .app-container { padding: 16px; }
  .grid-2 { grid-template-columns: 1fr; }
  #app-header { padding: 0 16px; }
}