:root {
  --paper: #f6f8fb;
  --surface: #ffffff;
  --surface-strong: #eef4fb;
  --ink: #111827;
  --muted: #5d6678;
  --line: #d8e0ea;
  --blue-deep: #17324d;
  --blue: #1f6fd1;
  --teal: #057f7a;
  --amber: #b47705;
  --rose: #8a3150;
  --shadow: 0 18px 50px rgba(17, 24, 39, 0.12);
  --radius: 8px;
  --header-height: 76px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  letter-spacing: 0;
}

body.modal-open {
  overflow: hidden;
}

a {
  color: inherit;
}

button,
input,
select {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: var(--header-height);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  padding: 12px 28px;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  min-width: 210px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  color: white;
  background: var(--blue-deep);
  border-radius: var(--radius);
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 0.82rem;
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 4px;
}

.site-nav a {
  padding: 10px 12px;
  border-radius: var(--radius);
  color: var(--muted);
  font-size: 0.92rem;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a.active {
  color: var(--blue-deep);
  background: var(--surface-strong);
  outline: none;
}

.nav-toggle {
  display: none;
}

.print-button,
.button,
.filter-button,
.trace-action,
.modal-close,
.back-top {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--blue-deep);
  cursor: pointer;
  text-decoration: none;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    color 180ms ease;
}

.print-button {
  padding: 10px 12px;
  white-space: nowrap;
}

.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 42px;
  padding: 10px 14px;
  font-weight: 700;
}

.button.primary,
.filter-button.active {
  color: white;
  background: var(--blue-deep);
  border-color: var(--blue-deep);
}

.button:hover,
.print-button:hover,
.filter-button:hover,
.trace-action:hover,
.modal-close:hover,
.back-top:hover {
  transform: translateY(-1px);
  border-color: var(--blue);
}

.shell {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.hero-band {
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  padding: 54px 0 34px;
  background:
    linear-gradient(120deg, rgba(23, 50, 77, 0.96), rgba(31, 111, 209, 0.78)),
    linear-gradient(180deg, #eef4fb, #ffffff);
  color: white;
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 460px);
  align-items: center;
  gap: 36px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--teal);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.hero-band .eyebrow {
  color: #cdeafd;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 8px;
  font-size: 3.4rem;
  line-height: 1.05;
}

h2 {
  margin-bottom: 14px;
  font-size: 2rem;
  line-height: 1.2;
}

h3 {
  font-size: 1.1rem;
  line-height: 1.3;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.86);
}

.hero-thread {
  max-width: 740px;
  margin-bottom: 24px;
  font-size: 1.08rem;
  color: rgba(255, 255, 255, 0.92);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.proof-panel {
  padding: 18px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.36);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 0.9rem;
}

.panel-heading strong {
  color: var(--blue-deep);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 14px;
}

.stat {
  min-height: 76px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.stat strong {
  display: block;
  font-size: 1.4rem;
  color: var(--blue-deep);
}

.stat span {
  color: var(--muted);
  font-size: 0.82rem;
}

.mini-traces {
  display: grid;
  gap: 10px;
}

.mini-trace {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 10px;
  align-items: center;
  min-height: 70px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
}

.mini-visual {
  width: 54px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--surface-strong);
  color: var(--blue-deep);
  font-weight: 800;
}

.mini-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mini-trace strong {
  display: block;
  line-height: 1.2;
}

.mini-trace span {
  color: var(--muted);
  font-size: 0.82rem;
}

.section-band {
  padding: 78px 0;
  background: var(--surface);
}

.section-band.muted {
  background: var(--paper);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 28px;
}

.section-heading p,
.section-intro p {
  color: var(--muted);
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 34px;
  align-items: start;
}

.timeline {
  position: relative;
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline-item {
  display: grid;
  grid-template-columns: 94px 1fr;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
}

.timeline-date {
  color: var(--blue-deep);
  font-weight: 800;
}

.timeline-item p {
  margin-bottom: 0;
  color: var(--muted);
}

.competence-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.competence-card,
.trace-card,
.source-card,
.oral-step,
.question-card,
.synthesis-list article,
.missing-box,
.oral-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 8px 24px rgba(17, 24, 39, 0.06);
}

.competence-card {
  min-height: 236px;
  padding: 16px;
}

.competence-card .number {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  margin-bottom: 12px;
  color: white;
  background: var(--blue-deep);
  border-radius: var(--radius);
  font-weight: 800;
}

.competence-card p {
  color: var(--muted);
  font-size: 0.92rem;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 4px 8px;
  border: 1px solid #c8d9ef;
  border-radius: var(--radius);
  color: var(--blue-deep);
  background: #edf5ff;
  font-size: 0.78rem;
  font-weight: 700;
}

.badge.teal {
  color: var(--teal);
  background: #e9f7f6;
  border-color: #b9dedb;
}

.badge.amber {
  color: #7d5304;
  background: #fff6df;
  border-color: #efd18b;
}

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

.competence-sections {
  display: grid;
  gap: 24px;
}

.competence-detail {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 22px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.competence-sticky {
  position: sticky;
  top: calc(var(--header-height) + 18px);
  align-self: start;
}

.competence-kicker {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  padding: 4px 10px;
  margin-bottom: 10px;
  border-radius: var(--radius);
  color: white;
  background: var(--blue-deep);
  font-size: 0.84rem;
  font-weight: 800;
}

.detail-block {
  margin-bottom: 18px;
}

.detail-block h4 {
  margin: 0 0 8px;
  color: var(--blue-deep);
  font-size: 0.96rem;
}

.activity-list,
.self-list,
.missing-box ul {
  margin: 0;
  padding-left: 18px;
}

.activity-list li,
.self-list li,
.missing-box li {
  margin-bottom: 8px;
}

.linked-traces {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.trace-link-card {
  display: block;
  min-height: 104px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: inherit;
  background: var(--paper);
  text-decoration: none;
}

.trace-link-card:hover {
  border-color: var(--blue);
}

.trace-link-card strong {
  display: block;
  margin-bottom: 6px;
}

.trace-link-card span {
  color: var(--muted);
  font-size: 0.88rem;
}

.matrix-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
}

.matrix-table {
  width: 100%;
  min-width: 860px;
  border-collapse: collapse;
}

.matrix-table th,
.matrix-table td {
  padding: 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.matrix-table th {
  color: var(--blue-deep);
  background: var(--surface-strong);
  font-size: 0.86rem;
}

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

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.filter-button {
  min-height: 38px;
  padding: 8px 12px;
}

.trace-warning {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  padding: 8px 12px;
  border: 1px solid #efd18b;
  border-radius: var(--radius);
  color: #7d5304;
  background: #fff6df;
  font-size: 0.86rem;
}

.trace-warning.ok {
  color: var(--teal);
  background: #e9f7f6;
  border-color: #b9dedb;
}

.trace-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.trace-card {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 420px;
  overflow: hidden;
}

.trace-visual {
  height: 172px;
  display: grid;
  place-items: center;
  padding: 18px;
  background:
    linear-gradient(135deg, rgba(31, 111, 209, 0.12), rgba(5, 127, 122, 0.12)),
    #eef4fb;
  color: var(--blue-deep);
  font-weight: 800;
  text-align: center;
}

.trace-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
}

.trace-visual video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  background: #0f172a;
}

.trace-body {
  padding: 16px;
}

.trace-body p {
  color: var(--muted);
}

.trace-source {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.trace-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 16px 16px;
}

.trace-action {
  flex: 1 1 140px;
  min-height: 38px;
  padding: 8px 10px;
  text-align: center;
}

.trace-action.primary {
  color: white;
  background: var(--blue-deep);
  border-color: var(--blue-deep);
}

.oral-card {
  display: grid;
  gap: 12px;
  padding: 18px;
}

.oral-choice {
  padding: 16px;
  border-radius: var(--radius);
  background: var(--paper);
}

.oral-choice span,
.oral-step span {
  display: block;
  color: var(--muted);
  font-size: 0.86rem;
}

.oral-choice strong {
  color: var(--blue-deep);
  font-size: 1.2rem;
}

.oral-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 24px;
}

.oral-step {
  min-height: 146px;
  padding: 16px;
}

.oral-step strong {
  display: block;
  margin-bottom: 8px;
  color: var(--amber);
  font-size: 1.4rem;
}

.question-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 16px;
}

.question-card {
  padding: 16px;
}

.question-card p {
  color: var(--muted);
}

.learning-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.learning-card,
.reflection-panel,
.project-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 8px 24px rgba(17, 24, 39, 0.06);
}

.learning-card {
  padding: 16px;
  min-height: 260px;
}

.learning-card span {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 5px 8px;
  border: 1px solid #c8d8ea;
  border-radius: 4px;
  color: var(--ink-blue);
  background: #eef4fb;
  font-size: 0.78rem;
  font-weight: 700;
}

.learning-card p,
.reflection-list p,
.project-panel p {
  color: var(--muted);
}

.reflection-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 18px;
  margin-top: 18px;
  align-items: start;
}

.reflection-panel,
.project-panel {
  padding: 18px;
}

.reflection-list {
  display: grid;
  gap: 12px;
  margin-top: 12px;
}

.reflection-list article {
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.reflection-list article:first-child {
  padding-top: 0;
  border-top: 0;
}

.synthesis-list {
  display: grid;
  gap: 14px;
}

.synthesis-list article {
  padding: 16px;
}

.source-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 18px;
}

.source-list {
  display: grid;
  gap: 10px;
}

.source-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  padding: 14px;
}

.source-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.source-status {
  align-self: start;
  padding: 4px 8px;
  border-radius: var(--radius);
  color: white;
  background: var(--teal);
  font-size: 0.78rem;
  font-weight: 800;
}

.missing-box {
  padding: 18px;
}

.trace-modal[hidden] {
  display: none;
}

.trace-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 20px;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(17, 24, 39, 0.62);
}

.modal-card {
  position: relative;
  width: min(900px, 100%);
  max-height: min(760px, calc(100vh - 40px));
  overflow: auto;
  padding: 22px;
  border-radius: var(--radius);
  background: white;
  box-shadow: var(--shadow);
}

.modal-close {
  float: right;
  min-height: 36px;
  padding: 7px 10px;
}

.modal-images {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 16px 0;
}

.modal-images img {
  width: 100%;
  max-height: 520px;
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.modal-video {
  width: 100%;
  max-height: 560px;
  margin: 16px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #0f172a;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.back-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 40;
  min-height: 42px;
  padding: 9px 12px;
  opacity: 0;
  pointer-events: none;
}

.back-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity 460ms ease,
    transform 460ms ease;
}

@media (max-width: 1040px) {
  .site-header {
    grid-template-columns: auto auto;
  }

  .brand {
    min-width: 0;
  }

  .nav-toggle {
    display: inline-flex;
    justify-self: end;
    min-height: 40px;
    align-items: center;
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: white;
    color: var(--blue-deep);
  }

  .site-nav {
    grid-column: 1 / -1;
    display: none;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .site-nav.open {
    display: flex;
  }

  .print-button {
    grid-column: 1 / -1;
    justify-self: start;
  }

  .hero-layout,
  .two-column,
  .source-layout {
    grid-template-columns: 1fr;
  }

  .competence-grid,
  .trace-grid,
  .learning-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .oral-grid,
  .question-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .competence-detail {
    grid-template-columns: 1fr;
  }

  .reflection-layout {
    grid-template-columns: 1fr;
  }

  .competence-sticky {
    position: static;
  }
}

@media (max-width: 680px) {
  :root {
    --header-height: 66px;
  }

  .site-header {
    padding: 10px 16px;
  }

  .brand small {
    display: none;
  }

  .shell {
    width: min(100% - 28px, 1180px);
  }

  .hero-band {
    min-height: auto;
    padding: 34px 0 28px;
  }

  h1 {
    font-size: 2.25rem;
  }

  h2 {
    font-size: 1.55rem;
  }

  .hero-actions,
  .trace-footer {
    flex-direction: column;
  }

  .stat-grid,
  .competence-grid,
    .linked-traces,
    .trace-grid,
    .learning-grid,
    .oral-grid,
    .question-list,
    .modal-images {
    grid-template-columns: 1fr;
  }

  .learning-card {
    min-height: auto;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }

  .section-band {
    padding: 54px 0;
  }

  .trace-card {
    min-height: auto;
  }
}

@media print {
  :root {
    --paper: white;
  }

  html {
    scroll-behavior: auto;
  }

  body {
    background: white;
    color: black;
    font-size: 11pt;
  }

  .site-header,
  .hero-actions,
  .filter-bar,
  .trace-footer,
  .back-top,
  .trace-modal {
    display: none !important;
  }

  .hero-band,
  .section-band,
  .section-band.muted {
    min-height: auto;
    padding: 20px 0;
    color: black;
    background: white;
  }

  .shell {
    width: 100%;
  }

  .hero-layout,
  .two-column,
  .source-layout,
  .competence-detail,
  .trace-grid,
  .competence-grid,
  .learning-grid,
  .reflection-layout,
  .oral-grid,
  .question-list {
    grid-template-columns: 1fr;
  }

  .proof-panel,
  .competence-card,
  .trace-card,
  .source-card,
  .oral-step,
  .question-card,
  .learning-card,
  .reflection-panel,
  .project-panel,
  .synthesis-list article,
  .missing-box,
  .oral-card,
  .trace-link-card {
    break-inside: avoid;
    box-shadow: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}