/* Y1 Dark Theme — Lusini OM Audit Web App */

:root {
  --bg: #000000;
  --bg-card: #0a0a0a;
  --bg-card-hover: #111111;
  --bg-header: #141414;
  --border: #212121;
  --text: #ffffff;
  --text-secondary: #d0d7d6;
  --text-muted: #828d8c;
  --accent: #ff78ba;
  --green: #4ade80;
  --orange: #fb923c;
  --red: #f87171;
  --blue: #60a5fa;
  --purple: #a78bfa;
  --yellow: #fbbf24;
  --cyan: #22d3ee;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --radius: 12px;
  --radius-sm: 8px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Layout */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Navigation */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}

nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

nav .logo {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

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

nav .nav-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

nav .nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}

nav .nav-links a:hover,
nav .nav-links a.active {
  color: var(--accent);
}

/* Hero */
.hero {
  padding: 120px 0 80px;
  text-align: center;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 16px;
}

.hero h1 span {
  color: var(--accent);
}

.hero .subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 48px;
  font-weight: 300;
}

/* KPI Row */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 48px;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: border-color 0.2s, transform 0.2s;
}

.kpi-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.kpi-card .kpi-value {
  font-size: 2rem;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.kpi-card .kpi-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.kpi-card .kpi-delta {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  margin-top: 4px;
}

.kpi-delta.positive { color: var(--green); }
.kpi-delta.negative { color: var(--red); }
.kpi-delta.warning { color: var(--orange); }
.kpi-delta.neutral { color: var(--text-muted); }

/* Section */
.section {
  padding: 64px 0;
  border-top: 1px solid var(--border);
}

.section-header {
  margin-bottom: 32px;
}

.section-header h2 {
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color 0.3s, transform 0.3s;
  text-decoration: none;
  color: var(--text);
  display: block;
}

a.card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

.card .card-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  padding: 4px 10px;
  border-radius: 4px;
  margin-top: 16px;
  font-weight: 500;
}

.card .card-tag.chapters { background: rgba(255, 120, 186, 0.15); color: var(--accent); }
.card .card-tag.theses { background: rgba(96, 165, 250, 0.15); color: var(--blue); }

/* Chart Container */
.chart-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
}

.chart-container h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.chart-container .chart-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.chart-container canvas {
  width: 100% !important;
}

.chart-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 768px) {
  .chart-row { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2.25rem; }
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
}

/* Status Pills */
.pill {
  display: inline-block;
  font-size: 0.7rem;
  font-family: var(--font-mono);
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.pill.kritisch { background: rgba(248, 113, 113, 0.2); color: var(--red); }
.pill.warnung { background: rgba(251, 146, 60, 0.2); color: var(--orange); }
.pill.gut { background: rgba(74, 222, 128, 0.2); color: var(--green); }

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

th {
  text-align: left;
  padding: 10px 12px;
  background: var(--bg-header);
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border);
}

td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

td.mono {
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

/* Page Header */
.page-header {
  padding: 48px 0 32px;
}

.page-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* Scorecard */
.scorecard {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.scorecard-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.scorecard-item .label {
  font-size: 0.9rem;
  font-weight: 500;
}

.scorecard-item .detail {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Thesis Cards */
.thesis-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 20px;
  border-left: 3px solid var(--accent);
}

.thesis-card .thesis-number {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.thesis-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.thesis-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.thesis-card .thesis-ref {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 12px;
}

/* Tooltip overrides for Chart.js */
.chartjs-tooltip {
  font-family: var(--font-mono) !important;
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
}

footer a {
  color: var(--accent);
  text-decoration: none;
}

/* Anchor offset for sticky nav */
.section[id] {
  scroll-margin-top: 70px;
}

/* Download links */
.download-row {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s;
  border: 1px solid var(--border);
  color: var(--text);
  background: var(--bg-card);
}

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

.btn.primary {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}

.btn.primary:hover {
  background: #ff8fc4;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 4px;
  background: var(--bg-header);
  border-radius: var(--radius-sm);
  padding: 4px;
  margin-bottom: 24px;
  width: fit-content;
}

.tab {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.2s;
  border: none;
  background: none;
}

.tab:hover { color: var(--text); }
.tab.active { background: var(--bg-card); color: var(--text); }

/* Info Box */
.info-box {
  background: rgba(255, 120, 186, 0.08);
  border: 1px solid rgba(255, 120, 186, 0.2);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.6;
}

.info-box strong {
  color: var(--accent);
}

.warning-box {
  background: rgba(248, 113, 113, 0.08);
  border: 1px solid rgba(248, 113, 113, 0.2);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.6;
}

.warning-box strong {
  color: var(--red);
}