:root {
  --bg: #07111d;
  --bg-soft: #0d1827;
  --panel: rgba(12, 23, 38, 0.84);
  --panel-strong: rgba(17, 31, 49, 0.94);
  --line: rgba(151, 184, 214, 0.17);
  --text: #edf3fb;
  --muted: #97aac0;
  --gold: #f0cf8e;
  --teal: #77dfd0;
  --green: #91e5a5;
  --amber: #f4c16e;
  --red: #f08f88;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.34);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(47, 120, 173, 0.2), transparent 32%),
    radial-gradient(circle at top right, rgba(240, 207, 142, 0.12), transparent 28%),
    linear-gradient(180deg, #08111d 0%, #07111d 44%, #0a1522 100%);
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, black 35%, transparent 100%);
  z-index: 0;
}

.page-shell {
  width: min(1200px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 36px 0 80px;
  position: relative;
  z-index: 1;
}

/* --- HERO --- */

.hero {
  display: grid;
  grid-template-columns: 1.5fr 0.9fr;
  gap: 24px;
  align-items: stretch;
  margin-bottom: 40px;
}

.hero-copy,
.hero-panel,
.panel,
.card,
.cluster-card,
.evidence-card,
.harness-card,
.law-card,
.antipattern-card,
.diagram-card {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero-copy {
  border-radius: 28px;
  padding: 36px;
  min-height: 320px;
}

.hero-panel,
.panel {
  border-radius: var(--radius);
  padding: 24px;
}

.eyebrow,
.kicker {
  margin: 0 0 10px;
  color: var(--teal);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

h1,
h2,
h3 {
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  font-weight: 600;
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(2.6rem, 6vw, 5rem);
  line-height: 0.95;
  margin: 0 0 18px;
  max-width: 14ch;
}

h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.7rem);
}

h3 {
  margin-top: 0;
  font-size: 1.25rem;
}

.lede {
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.7;
  max-width: 58ch;
  margin: 0;
}

.summary-stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.summary-stat:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.summary-stat strong {
  font-size: 1.8rem;
  font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
}

.summary-stat span {
  color: var(--muted);
}

/* --- SECTIONS --- */

.section {
  margin-top: 48px;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
  margin-bottom: 18px;
}

/* --- CARDS --- */

.cards {
  display: grid;
  gap: 18px;
}

.cards.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.cards.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cards.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card,
.cluster-card,
.evidence-card,
.harness-card,
.law-card,
.antipattern-card,
.diagram-card {
  border-radius: 22px;
  padding: 22px;
}

.card .label,
.cluster-card .label,
.harness-card .label {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.74rem;
  margin-bottom: 12px;
}

.metric {
  font-size: 2.4rem;
  font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  margin: 0 0 8px;
}

.supporting {
  color: var(--muted);
  line-height: 1.65;
  margin: 0;
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

/* --- STYLE-FIT MATRIX --- */

.matrix-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.matrix-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 540px;
}

.matrix-table th,
.matrix-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
  vertical-align: middle;
}

.matrix-table th {
  font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
  border-bottom: 2px solid var(--line);
}

.matrix-table th:first-child,
.matrix-table td:first-child {
  color: var(--text);
  font-weight: 500;
  text-align: left;
}

.matrix-table td:not(:first-child) {
  text-align: center;
}

.matrix-table tr:last-child td {
  border-bottom: 0;
}

.fit-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.fit-PERFEKT  { background: rgba(145, 229, 165, 0.15); color: var(--green);  border: 1px solid rgba(145, 229, 165, 0.3); }
.fit-GUT      { background: rgba(119, 223, 208, 0.12); color: var(--teal);   border: 1px solid rgba(119, 223, 208, 0.25); }
.fit-OKAY     { background: rgba(240, 207, 142, 0.12); color: var(--amber);  border: 1px solid rgba(240, 207, 142, 0.25); }
.fit-MITTEL   { background: rgba(151, 170, 192, 0.08); color: var(--muted);  border: 1px solid rgba(151, 170, 192, 0.18); }
.fit-SCHLECHT { background: rgba(240, 143, 136, 0.10); color: var(--red);    border: 1px solid rgba(240, 143, 136, 0.22); }

.fit-GEFAEHRLICH {
  background: rgba(240, 80, 70, 0.15);
  color: #ff6b62;
  border: 1px solid rgba(240, 80, 70, 0.35);
  animation: pulse-red 2s ease-in-out infinite;
}

@keyframes pulse-red {
  0%, 100% { box-shadow: none; }
  50% { box-shadow: 0 0 8px rgba(240, 80, 70, 0.5); }
}

/* --- HARNESS CARDS --- */

.harness-card {
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.harness-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.44);
}

.harness-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.harness-status {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  white-space: nowrap;
  flex-shrink: 0;
}

.status-aktiv {
  background: rgba(119, 223, 208, 0.12);
  color: var(--teal);
  border: 1px solid rgba(119, 223, 208, 0.28);
}

.status-pending {
  background: rgba(151, 170, 192, 0.08);
  color: var(--muted);
  border: 1px solid rgba(151, 170, 192, 0.18);
}

.harness-color-bar {
  width: 4px;
  border-radius: 999px;
  flex-shrink: 0;
  align-self: stretch;
}

.color-teal  { background: var(--teal); }
.color-gold  { background: var(--gold); }
.color-green { background: var(--green); }
.color-amber { background: var(--amber); }
.color-red   { background: var(--red); }
.color-muted { background: var(--muted); }

.harness-body {
  display: flex;
  gap: 14px;
}

.harness-content {
  flex: 1;
  min-width: 0;
}

.harness-details {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, opacity 0.4s ease;
  opacity: 0;
}

.harness-card.expanded .harness-details {
  max-height: 600px;
  opacity: 1;
}

.harness-expand-hint {
  margin-top: 14px;
  font-size: 0.8rem;
  color: var(--muted);
  text-align: center;
  letter-spacing: 0.06em;
}

.harness-card.expanded .harness-expand-hint {
  display: none;
}

.harness-stats-row {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.harness-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.harness-stat .stat-label {
  color: var(--muted);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.harness-stat .stat-value {
  font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  font-size: 1.2rem;
}

.harness-strengths,
.harness-weaknesses {
  margin-top: 14px;
}

.harness-strengths h4,
.harness-weaknesses h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin: 0 0 8px;
  font-weight: 500;
  font-family: inherit;
}

.bullet-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.65;
}

.arch-link {
  display: inline-block;
  margin-top: 12px;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--teal);
  font-size: 0.82rem;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.arch-link:hover {
  background: rgba(119, 223, 208, 0.08);
  border-color: rgba(119, 223, 208, 0.3);
}

.placeholder-note {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.6;
  font-style: italic;
  padding-top: 6px;
}

/* --- ARCHITECTURE DIAGRAMS --- */

.diagram-card {
  border-radius: 22px;
  padding: 22px;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.diagram-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.44);
  background: rgba(17, 31, 49, 0.94);
}

.diagram-card .label {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.74rem;
  margin-bottom: 8px;
}

.diagram-card h3 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}

.diagram-card .supporting {
  font-size: 0.88rem;
}

/* --- LAWS --- */

.law-card {
  border-radius: 22px;
  padding: 22px;
  display: flex;
  gap: 16px;
  border-left-width: 3px;
  border-left-style: solid;
}

.law-card.law-teal  { border-left-color: var(--teal); }
.law-card.law-green { border-left-color: var(--green); }
.law-card.law-gold  { border-left-color: var(--gold); }
.law-card.law-amber { border-left-color: var(--amber); }
.law-card.law-red   { border-left-color: var(--red); }
.law-card.law-muted { border-left-color: var(--muted); }

.law-number {
  font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  font-size: 2rem;
  line-height: 1;
  color: var(--muted);
  opacity: 0.5;
  flex-shrink: 0;
  width: 2.4rem;
  text-align: right;
}

.law-content {
  flex: 1;
  min-width: 0;
}

.law-content h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.law-beweis {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.84rem;
}

.law-beweis::before {
  content: "Beweis: ";
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.74rem;
  color: var(--muted);
  opacity: 0.7;
}

/* --- ANTI-PATTERNS --- */

.antipattern-card {
  border-radius: 22px;
  padding: 22px;
  background: rgba(240, 143, 136, 0.05);
  border: 1px solid rgba(240, 143, 136, 0.15);
}

.antipattern-card .severity {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}

.severity-kritisch {
  background: rgba(240, 80, 70, 0.2);
  color: #ff6b62;
  border: 1px solid rgba(240, 80, 70, 0.35);
}

.severity-hoch {
  background: rgba(240, 143, 136, 0.15);
  color: var(--red);
  border: 1px solid rgba(240, 143, 136, 0.28);
}

.severity-mittel {
  background: rgba(244, 193, 110, 0.1);
  color: var(--amber);
  border: 1px solid rgba(244, 193, 110, 0.22);
}

.antipattern-folge {
  margin-top: 10px;
  font-size: 0.84rem;
  color: var(--muted);
  padding-top: 10px;
  border-top: 1px solid rgba(240, 143, 136, 0.12);
}

.antipattern-folge::before {
  content: "Folge: ";
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  color: var(--red);
}

/* --- WAVE MODE --- */

.wave-phases {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: 18px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.wave-phase {
  padding: 28px;
  background: var(--panel);
  backdrop-filter: blur(18px);
  position: relative;
}

.wave-phase:not(:last-child) {
  border-right: 1px solid var(--line);
}

.wave-phase-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.wave-phase-number {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  font-size: 1.1rem;
  font-weight: 600;
  flex-shrink: 0;
}

.phase-teal  { background: rgba(119, 223, 208, 0.15); color: var(--teal);  border: 1px solid rgba(119, 223, 208, 0.3); }
.phase-gold  { background: rgba(240, 207, 142, 0.15); color: var(--gold);  border: 1px solid rgba(240, 207, 142, 0.3); }
.phase-green { background: rgba(145, 229, 165, 0.15); color: var(--green); border: 1px solid rgba(145, 229, 165, 0.3); }

.wave-phase h3 {
  margin: 0;
  font-size: 1.3rem;
}

.wave-phase .supporting {
  margin-bottom: 16px;
}

.wave-steps {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.wave-steps li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--muted);
}

.wave-steps li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--line);
  flex-shrink: 0;
}

.wave-arrow {
  position: absolute;
  right: -14px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.9rem;
  z-index: 2;
}

.wave-checkpoints {
  margin-top: 18px;
  padding: 20px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(18px);
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.wave-checkpoint {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 0.88rem;
}

.checkpoint-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal);
  flex-shrink: 0;
}

/* --- COSTS --- */

.cost-table-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
  margin-bottom: 18px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  color: var(--muted);
  line-height: 1.65;
}

th {
  color: var(--text);
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
}

td:first-child {
  color: var(--text);
  font-weight: 500;
}

tr:last-child td {
  border-bottom: 0;
}

.cost-bar-wrap {
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
  margin-top: 6px;
}

.cost-bar {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--teal), var(--green));
}

.cost-bar.low {
  background: linear-gradient(90deg, var(--green), #6fde84);
}

.cost-bar.mid {
  background: linear-gradient(90deg, var(--amber), var(--gold));
}

.cost-bar.high {
  background: linear-gradient(90deg, var(--red), #e05f58);
}

/* --- PILL --- */

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.pill {
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font-size: 0.86rem;
}

/* --- TUTORIAL (inside expanded harness cards) --- */

.tutorial-section {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.tutorial-block {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tutorial-heading {
  margin: 0;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--teal);
  font-weight: 600;
  font-family: inherit;
}

.tutorial-steps {
  margin: 0;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.tutorial-steps li {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.5;
}

/* ADHS Patterns Grid */
.adhs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.adhs-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.adhs-card-header {
  display: flex;
  align-items: center;
  gap: 7px;
}

.adhs-emoji {
  font-size: 1rem;
}

.adhs-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gold);
  font-weight: 600;
}

.adhs-text {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.55;
  margin: 0;
}

/* Wellenmodus */
.wellenmodus-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: start;
}

.wm-role {
  background: rgba(119, 223, 208, 0.1);
  border: 1px solid rgba(119, 223, 208, 0.2);
  color: var(--teal);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
}

.wm-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.wm-entry,
.wm-exit {
  font-size: 0.84rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.5;
}

/* Handoff Grid */
.handoff-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.handoff-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: start;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 10px;
}

.handoff-target {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--green);
  font-weight: 600;
  white-space: nowrap;
}

.handoff-hint {
  font-size: 0.82rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.5;
}

/* --- ROUTER --- */

.router-section {
  margin-top: 40px;
}

.router-input-wrap {
  display: flex;
  flex-direction: column;
  gap: 14px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  padding: 24px;
}

#routerInput {
  width: 100%;
  min-height: 80px;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  line-height: 1.6;
  resize: vertical;
  outline: none;
  transition: border-color 0.2s ease;
}

#routerInput:focus {
  border-color: rgba(119, 223, 208, 0.4);
}

#routerInput::placeholder {
  color: var(--muted);
  opacity: 0.7;
}

.router-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.router-tag {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-size: 0.82rem;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.router-tag:hover {
  background: rgba(119, 223, 208, 0.08);
  border-color: rgba(119, 223, 208, 0.3);
  color: var(--text);
}

.router-btn {
  align-self: flex-start;
  padding: 10px 20px;
  border-radius: 999px;
  border: none;
  background: linear-gradient(135deg, var(--teal), #5bc4b6);
  color: #07111d;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.router-btn:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.router-result {
  margin-top: 18px;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.router-card {
  border-radius: 20px;
  padding: 22px 24px;
  background: var(--panel);
  backdrop-filter: blur(18px);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.router-wave-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: rgba(119, 223, 208, 0.1);
  color: var(--teal);
  border: 1px solid rgba(119, 223, 208, 0.2);
  align-self: flex-start;
}

.router-harness-name {
  margin: 0;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
}

.router-reason {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 0;
}

.router-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 4px;
}

.router-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--teal);
  font-size: 0.82rem;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.router-link:hover {
  background: rgba(119, 223, 208, 0.08);
  border-color: rgba(119, 223, 208, 0.3);
}

.router-cost {
  font-size: 0.82rem;
  color: var(--muted);
}

.border-teal { border-left: 3px solid var(--teal); }
.border-gold { border-left: 3px solid var(--gold); }
.border-green { border-left: 3px solid var(--green); }
.border-amber { border-left: 3px solid var(--amber); }

.hidden { display: none; }

/* --- UTILITY --- */

.muted {
  color: var(--muted);
}

.subnote {
  color: var(--muted);
  font-size: 0.86rem;
  margin-top: 10px;
  line-height: 1.65;
}

/* --- RESPONSIVE --- */

@media (max-width: 980px) {
  .hero,
  .split,
  .cards.two,
  .cards.three,
  .cards.four {
    grid-template-columns: 1fr;
  }

  .wave-phases {
    grid-template-columns: 1fr;
  }

  .wave-phase:not(:last-child) {
    border-right: none;
    border-bottom: 1px solid var(--line);
  }

  .wave-arrow {
    display: none;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100vw - 20px, 1200px);
    padding-top: 18px;
  }

  .hero-copy,
  .hero-panel,
  .panel,
  .card,
  .cluster-card,
  .harness-card,
  .law-card,
  .antipattern-card,
  .diagram-card {
    padding: 18px;
  }

  h1 {
    font-size: clamp(2rem, 8vw, 3rem);
  }
}

/* ─────────────────────────────────────────────
   TUTORIAL PAGE (SPA hash-routed)
───────────────────────────────────────────── */

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 16px 0;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.nav-brand {
  font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 4px;
}

.nav-link {
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 0.84rem;
  color: var(--muted);
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
}

.nav-link.active {
  background: rgba(119, 223, 208, 0.12);
  color: var(--teal);
  border: 1px solid rgba(119, 223, 208, 0.2);
}

/* Tutorial Page */
.tutorial-page {
  max-width: 860px;
  margin: 0 auto;
  padding-bottom: 80px;
}

.tutorial-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.tutorial-back {
  color: var(--muted);
  font-size: 0.88rem;
  text-decoration: none;
  transition: color 0.2s ease;
}

.tutorial-back:hover {
  color: var(--teal);
}

.tutorial-nav {
  display: flex;
  gap: 16px;
}

.tutorial-prev,
.tutorial-next {
  font-size: 0.82rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.tutorial-prev:hover,
.tutorial-next:hover {
  color: var(--teal);
}

/* Hero */
.tutorial-hero {
  margin-bottom: 40px;
}

.tutorial-hero-badge {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 14px;
}

.tutorial-hero-badge.color-teal {
  background: rgba(119, 223, 208, 0.12);
  color: var(--teal);
  border: 1px solid rgba(119, 223, 208, 0.25);
}

.tutorial-hero-badge.color-gold {
  background: rgba(240, 207, 142, 0.12);
  color: var(--gold);
  border: 1px solid rgba(240, 207, 142, 0.25);
}

.tutorial-hero-badge.color-green {
  background: rgba(145, 229, 165, 0.12);
  color: var(--green);
  border: 1px solid rgba(145, 229, 165, 0.25);
}

.tutorial-hero-badge.color-amber {
  background: rgba(244, 193, 110, 0.12);
  color: var(--amber);
  border: 1px solid rgba(244, 193, 110, 0.25);
}

.tutorial-title {
  font-size: clamp(2.4rem, 5vw, 3.5rem);
  margin: 0 0 12px;
  letter-spacing: -0.03em;
}

.tutorial-tagline {
  font-size: 1.1rem;
  color: var(--muted);
  margin: 0 0 18px;
  max-width: 55ch;
}

.tutorial-stats {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.t-stat {
  font-size: 0.88rem;
  color: var(--muted);
}

.t-stat strong {
  font-family: "Iowan Old Style", Georgia, serif;
  font-size: 1.1rem;
  color: var(--text);
  margin-right: 4px;
}

/* Tabs */
.tutorial-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 28px;
}

.t-tab {
  padding: 10px 18px;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 0.88rem;
  cursor: pointer;
  transition: color 0.2s ease;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.t-tab:hover {
  color: var(--text);
}

.t-tab.active {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

/* Tab Content */
.t-tabcontent {
  display: none;
}

.t-tabcontent.active {
  display: block;
  animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

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

.t-section h2 {
  font-size: 1.5rem;
  margin: 0 0 16px;
}

.t-section h3 {
  font-size: 1.1rem;
  margin: 0 0 12px;
  color: var(--muted);
}

/* Steps */
.t-steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.t-steps li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.t-step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(119, 223, 208, 0.12);
  color: var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Iowan Old Style", Georgia, serif;
  font-size: 0.9rem;
  font-weight: 600;
  flex-shrink: 0;
}

.t-step-text {
  font-size: 0.92rem;
  color: var(--muted);
  line-height: 1.55;
  padding-top: 3px;
}

/* Welleneinsatz */
.t-welleneinsatz {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  padding: 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  align-items: start;
}

.t-welleneinsatz-badge {
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(119, 223, 208, 0.1);
  border: 1px solid rgba(119, 223, 208, 0.2);
  color: var(--teal);
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
}

.t-welleneinsatz-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.t-welleneinsatz-meta p {
  font-size: 0.88rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.5;
}

.t-welleneinsatz-meta strong {
  color: var(--text);
}

/* Handoff */
.t-handoff {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.t-handoff-card {
  padding: 14px 16px;
  background: rgba(145, 229, 165, 0.04);
  border: 1px solid rgba(145, 229, 165, 0.12);
  border-radius: 12px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: start;
}

.t-handoff-target {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--green);
  font-weight: 600;
  padding: 4px 10px;
  background: rgba(145, 229, 165, 0.08);
  border-radius: 999px;
  white-space: nowrap;
}

.t-handoff-card p {
  font-size: 0.88rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.5;
}

/* Diagramm iframe */
.t-diagramm {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
}

.t-iframe {
  width: 100%;
  height: 500px;
  border: none;
  display: block;
}

/* Annotations */
.t-annotations {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.t-annotation {
  padding: 14px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.t-ann-badge {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.t-annotation p {
  font-size: 0.84rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.5;
}

/* ADHS Cards */
.t-adhs-card {
  background: rgba(240, 207, 142, 0.04);
  border: 1px solid rgba(240, 207, 142, 0.12);
  border-radius: 16px;
  padding: 20px 22px;
}

.t-adhs-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.t-adhs-icon {
  font-size: 1.3rem;
}

.t-adhs-header h3 {
  font-size: 1rem;
  margin: 0;
  color: var(--gold);
}

.t-adhs-card p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.65;
  margin: 0;
}

/* Config */
.t-configtable {
  display: flex;
  flex-direction: column;
  gap: 1px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
}

.t-configrow {
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  gap: 12px;
  padding: 12px 14px;
  background: var(--panel);
  align-items: center;
  font-size: 0.85rem;
}

.t-configkey {
  font-family: "Courier New", monospace;
  color: var(--teal);
}

.t-configtype {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  padding: 2px 7px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 4px;
}

.t-configdesc {
  color: var(--muted);
}

.t-configdefault {
  font-size: 0.78rem;
  color: var(--gold);
  font-style: italic;
}

/* Hooks */
.t-hooks {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.t-hook {
  padding: 14px 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.t-hook-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.t-hook-header code {
  font-family: "Courier New", monospace;
  color: var(--teal);
  font-size: 0.88rem;
}

.t-hook-badge {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(240, 143, 136, 0.12);
  color: var(--red);
}

.t-hook p {
  font-size: 0.84rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.5;
}

/* FAQ */
.t-faq {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.t-faq-item {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}

.t-faq-item summary {
  padding: 14px 16px;
  font-size: 0.92rem;
  font-weight: 500;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.t-faq-item summary::-webkit-details-marker { display: none; }

.t-faq-item summary::after {
  content: "+";
  font-size: 1.2rem;
  color: var(--muted);
  transition: transform 0.2s ease;
}

.t-faq-item[open] summary::after {
  transform: rotate(45deg);
}

.t-faq-item p {
  padding: 0 16px 14px;
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.6;
  margin: 0;
}

.t-muted {
  color: var(--muted);
  font-size: 0.9rem;
  font-style: italic;
}

/* Level Badges */
.t-level-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 4px;
  background: rgba(119, 223, 208, 0.12);
  color: var(--teal);
  border: 1px solid rgba(119, 223, 208, 0.3);
  margin-bottom: 8px;
}
.t-level-badge.level3 {
  background: rgba(240, 207, 142, 0.12);
  color: var(--gold);
  border-color: rgba(240, 207, 142, 0.3);
}
.t-level-badge.level4 {
  background: rgba(145, 229, 165, 0.12);
  color: var(--green);
  border-color: rgba(145, 229, 165, 0.3);
}

/* Responsive Tutorial */
@media (max-width: 640px) {
  .nav-links { display: none; }
  .t-annotations { grid-template-columns: 1fr; }
  .t-configrow { grid-template-columns: 1fr 1fr; }
  .t-configdesc { display: none; }
  .t-iframe { height: 300px; }
}