:root {
  --bg: #f5f1e8;
  --panel: #fffdf8;
  --ink: #212121;
  --accent: #1d5b79;
  --ok: #0f7b4e;
  --err: #962d2d;
  --line: #d9ceb3;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Source Serif 4", Georgia, serif;
  color: var(--ink);
  background: radial-gradient(circle at top, #fffef9 0%, var(--bg) 65%);
}
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.4rem;
  border-bottom: 1px solid var(--line);
  background: #fff;
  position: sticky;
  top: 0;
}
.top-logo-link { display: inline-flex; align-items: center; }
.top-logo {
  width: 125px;
  max-width: 100%;
  height: auto;
  display: block;
}
nav a { margin-left: 1rem; color: var(--accent); text-decoration: none; }
main {
  width: 90%;
  max-width: 1700px;
  margin: 1.5rem auto;
  padding: 0 0 2rem;
}
section {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem;
  margin-bottom: 1rem;
}
form { display: grid; gap: 0.7rem; }
label { display: grid; gap: 0.25rem; font-size: 0.95rem; }
input, select, textarea, button {
  font: inherit;
  padding: 0.55rem;
  border: 1px solid #b9ad90;
  border-radius: 8px;
}
button {
  background: var(--accent);
  color: #fff;
  border: 0;
  cursor: pointer;
}
.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 0.9rem;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
}
.dashboard-article-actions {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
  align-items: center;
}
.button-link.secondary {
  border: 0;
  background: #eadfca;
  color: #453a25;
  cursor: pointer;
}
.wall-assign-form {
  margin-top: 0.85rem;
}
.wall-assign-form button {
  width: 100%;
}
fieldset {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.8rem;
}
.flash { padding: 0.8rem; border-radius: 8px; margin-bottom: 0.7rem; }
.flash.success { background: #e9f8f0; color: var(--ok); border: 1px solid #a5dec2; }
.flash.error { background: #fdeeee; color: var(--err); border: 1px solid #e5b8b8; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.55rem; border-bottom: 1px solid var(--line); text-align: left; }
.avatar { width: 88px; height: 88px; object-fit: cover; border-radius: 50%; border: 2px solid var(--line); }
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1rem;
}
.modal-card {
  width: min(1000px, 100%);
  max-height: 90vh;
  overflow: auto;
  background: #fff;
  border-radius: 12px;
  padding: 1rem;
}
.close-modal { float: right; }
.article-window {
  white-space: pre-wrap;
  font-family: "Source Serif 4", Georgia, serif;
  border: 1px solid var(--line);
  padding: 0.9rem;
  border-radius: 8px;
  background: #fffdf9;
  max-height: 65vh;
  overflow: auto;
}
.reliability-badge,
.reliability-chip {
  display: inline-block;
  margin: 0.2rem 0 0.55rem;
  padding: 0.28rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 0.88rem;
  background: #f4efe3;
}
.reliability-badge.is-high,
.reliability-chip.is-high {
  background: #e3f5ea;
  border-color: #8dc8a5;
}
.reliability-badge.is-good,
.reliability-chip.is-good {
  background: #edf8ef;
  border-color: #a9d6b0;
}
.reliability-badge.is-medium,
.reliability-chip.is-medium {
  background: #fff7e0;
  border-color: #d8c17f;
}
.reliability-badge.is-low,
.reliability-chip.is-low {
  background: #ffefde;
  border-color: #d6a96b;
}
.reliability-badge.is-weak,
.reliability-chip.is-weak {
  background: #fde7e7;
  border-color: #d39797;
}
.reliability-badge.is-unknown,
.reliability-chip.is-unknown {
  background: #f0eeee;
  border-color: #bdb7b7;
}
.article-propagation-note {
  border-top: 1px solid #9c8f71;
  margin-top: 0.9rem;
  padding-top: 0.6rem;
  font-style: italic;
}
.tree-grid { display: grid; gap: 1rem; }
.tree-root { border: 1px solid var(--line); }
.tree-head { display: flex; gap: 0.7rem; align-items: center; }
.tree-children { margin-top: 0.8rem; display: grid; gap: 0.6rem; }
.tree-child {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.6rem;
  background: #fffcf3;
}
.tree-accepted { margin-top: 0.4rem; color: #384251; }
.map-summary,
.wall-explainer {
  margin: 0.5rem 0 0.8rem;
  color: #4b4b4b;
}
.home-top-grid {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}
.diapo {
  background: linear-gradient(165deg, #fffdf8 0%, #f5efe0 100%);
}
.diapo-slide { display: none; }
.diapo-slide.is-active { display: block; animation: fadeIn 280ms ease; }
.diapo-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 1rem;
  align-items: start;
}
.diapo-head {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 0.6rem;
}
.diapo-logo {
  width: 96px;
  height: 96px;
  object-fit: contain;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 0.25rem;
}
.diapo-sub {
  margin: 0.2rem 0 0;
  color: #4f4f4f;
  font-size: clamp(1.2rem, 2.2vw, 1.9rem);
  font-weight: 600;
  letter-spacing: 0.03em;
}
.diapo-title {
  margin: 0;
  font-size: clamp(2rem, 3.6vw, 3rem);
  line-height: 1.05;
  letter-spacing: 0.04em;
  font-weight: 700;
}
.diapo-visual {
  width: 100%;
  max-width: 260px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.25rem;
  background: #fff;
  justify-self: end;
}
.diapo-visual-large {
  width: 100%;
  max-width: 820px;
  display: block;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.25rem;
  background: #fff;
  margin: 0.8rem auto 0;
}
.diapo-controls {
  margin-top: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.6rem;
}
.diapo-btn { min-width: 120px; }
.diapo-dots {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  justify-content: center;
}
.diapo-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  border: 0;
  background: #c8baa0;
  padding: 0;
}
.diapo-dot.is-active { background: #1d5b79; }
.expo-diapo {
  display: flex;
  flex-direction: column;
}
.expo-heading {
  margin: 0 0 0.7rem;
  font-size: 1.3rem;
  letter-spacing: 0.02em;
}
.expo-card {
  min-height: 200px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 1rem;
}
.wall-loading-banner {
  margin: 0.75rem 0 0.9rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid #d8c17f;
  border-radius: 10px;
  background: #fff6da;
  color: #5d4b12;
  font-weight: 600;
}
.wall-loading-title {
  font-size: 1rem;
}
.wall-loading-dots {
  display: inline-block;
  min-width: 1.5em;
}
.wall-loading-bar {
  margin-top: 0.55rem;
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: rgba(93, 75, 18, 0.14);
  overflow: hidden;
}
.wall-loading-bar-fill {
  display: block;
  width: 35%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #1d5b79 0%, #2a9d8f 100%);
  animation: wallLoadingSlide 1.6s ease-in-out infinite;
}
.wall-loading-meta {
  margin-top: 0.45rem;
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  font-size: 0.92rem;
  font-weight: 500;
}
.wall-loading-banner.is-ready {
  display: none;
}
@keyframes wallLoadingSlide {
  0% { transform: translateX(-110%); }
  100% { transform: translateX(310%); }
}
.expo-title {
  margin: 0 0 0.8rem;
  font-size: 1.35rem;
}
.expo-text p {
  margin-bottom: 0;
  line-height: 1.55;
}
.slide-text p { margin-top: 0; }
.slide-text p:last-child { margin-bottom: 0; }
.editor-block { display: grid; gap: 0.4rem; }
.editor-tools { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.editor-btn {
  background: #f0e8d8;
  color: #212121;
  border: 1px solid #c8baa0;
  padding: 0.35rem 0.6rem;
}
.slide-image-preview {
  max-width: 240px;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  padding: 0.2rem;
}
.slides-admin-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 0.9rem;
}
.slides-admin-actions form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: end;
  padding: 0.5rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}
.danger-btn {
  background: #962d2d;
}
.home-map-section p {
  margin-top: 0.2rem;
}
.home-map-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin: 0.35rem 0 0.65rem;
  font-size: 0.9rem;
}
.home-map-legend span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.legend-dot {
  display: inline-block;
  width: 11px;
  height: 11px;
  border-radius: 999px;
  border: 1px solid #1e2a33;
}
.legend-dot.level-0 { background: #1d5b79; }
.legend-dot.level-1 { background: #2a9d8f; }
.legend-dot.level-2 { background: #f4a261; }
.home-humans-map {
  width: 100%;
  height: 420px;
  border: 1px solid #b9ad90;
  border-radius: 10px;
  background: #fff;
}
.wall-stats {
  margin-bottom: 0.55rem;
  font-size: 0.95rem;
}
.wall-zoom-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.7rem;
}
.wall-zoom-controls button {
  min-width: 110px;
}
.wall-zoom-label {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0.35rem 0.6rem;
  border: 1px solid #b9ad90;
  border-radius: 8px;
  background: #fff;
  font-weight: 600;
}
.article-wall-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 0.8rem;
  align-items: start;
}
.visual-lab {
  display: grid;
  gap: 1rem;
}
.visual-lab-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
}
.visual-mode-switch {
  display: flex;
  gap: 0.65rem;
  flex-wrap: wrap;
  align-items: center;
}
.visual-mode-switch button.is-active {
  background: #123b4a;
}
.visual-lab-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 0.9rem;
  align-items: start;
}
.visual-stage {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  min-height: 620px;
  background: linear-gradient(180deg, #07131d 0%, #10283b 100%);
}
.visual-lab-canvas {
  width: 100%;
  height: 620px;
  display: block;
  cursor: default;
}
.visual-lab-canvas.is-hidden {
  display: none;
}
.visual-scatter-letters {
  position: absolute;
  left: 14px;
  top: 14px;
  bottom: 14px;
  width: 34px;
  display: grid;
  grid-auto-rows: minmax(16px, auto);
  gap: 0.08rem;
  z-index: 3;
  overflow-y: auto;
  padding: 0.15rem 0;
}
.visual-scatter-letters.is-hidden {
  display: none;
}
.visual-scatter-letter-btn {
  border: 0;
  background: transparent;
  color: var(--letter-color, #f3f8fb);
  border-radius: 0;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: color 0.18s ease, transform 0.18s ease, opacity 0.18s ease;
  display: block;
  line-height: 1;
  padding: 0.14rem 0.05rem;
  text-align: left;
  opacity: 0.78;
}
.visual-scatter-letter-btn:hover,
.visual-scatter-letter-btn:focus-visible {
  background: transparent;
  transform: translateX(2px) scale(1.06);
  opacity: 1;
}
.visual-scatter-letter-btn.is-active {
  background: transparent;
  opacity: 1;
  text-shadow: 0 0 16px color-mix(in srgb, var(--letter-color, #ffffff) 72%, transparent);
}
.visual-scatter-letter-btn:disabled {
  opacity: 0.28;
  cursor: default;
  transform: none;
}
.visual-scatter-letter-btn strong {
  display: inline;
  font-size: inherit;
}
.visual-scatter-cluster-labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}
.visual-scatter-cluster-labels.is-hidden {
  display: none;
}
.visual-scatter-zoom {
  position: absolute;
  right: 14px;
  top: 14px;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.45rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(7, 19, 29, 0.62);
  color: #f3f8fb;
  z-index: 3;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
}
.visual-scatter-zoom.is-hidden {
  display: none;
}
.visual-scatter-zoom button {
  min-width: 34px;
  min-height: 34px;
  padding: 0.1rem 0.35rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(18, 59, 74, 0.92);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}
.visual-scatter-zoom button.is-active,
.visual-scatter-zoom button[data-scatter-used-toggle="1"] {
  background: #ffcf5a;
  color: #10283b;
  border-color: rgba(255, 255, 255, 0.82);
}
.visual-scatter-zoom span {
  min-width: 58px;
  text-align: center;
  font-weight: 700;
}
.visual-lab-panel {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fffef9;
  padding: 1rem;
  position: sticky;
  top: 84px;
}
.visual-lab-panel h3 {
  margin-top: 0;
}
.visual-lab-panel p {
  margin: 0 0 0.65rem;
}
.visual-lab-panel .visual-meta {
  color: #615742;
  font-size: 0.94rem;
}
.visual-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1rem;
}
.visual-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
  background: #f2ecde;
  border: 1px solid #d7c9ab;
}
.visual-legend-swatch {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
}
.visual-lab-notes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.2rem;
  color: #4e4637;
}
.visual-lab-notes p {
  margin: 0;
}
.domain-sciences { background: #6bc4ff; }
.domain-histoire { background: #ff8c69; }
.domain-geographie { background: #59d4a2; }
.domain-arts { background: #ffcf5a; }
.domain-litterature { background: #d799ff; }
.domain-philosophie { background: #8ea0ff; }
.domain-societe { background: #ff7db3; }
.domain-techniques { background: #8de36f; }
.article-wall-canvas-wrap {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 520px;
}
.article-wall-canvas {
  width: 100%;
  max-height: 74vh;
  height: auto;
  display: block;
  image-rendering: pixelated;
  border-radius: 6px;
  cursor: crosshair;
}
.article-wall-canvas:focus {
  outline: 2px solid #1d5b79;
  outline-offset: 2px;
}
.wall-info {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  padding: 0.8rem;
  position: sticky;
  top: 84px;
}
.wall-info h3 {
  margin-top: 0;
}
.wall-info p {
  margin: 0 0 0.45rem;
}
.wall-info ul {
  margin: 0.2rem 0 0 1.05rem;
  padding: 0;
}
.address-map-widget {
  display: grid;
  gap: 0.5rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.7rem;
  background: #fff;
}
.privacy-note {
  margin: 0;
  font-size: 0.86rem;
  color: #2d6a4f;
}
.map-search-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.4rem;
}
.map-search-btn {
  white-space: nowrap;
  padding-inline: 0.9rem;
}
.map-canvas {
  width: 100%;
  height: 280px;
  border-radius: 8px;
  border: 1px solid #b9ad90;
}
.password-wrap {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.4rem;
  align-items: center;
}
.password-eye {
  min-width: 44px;
  padding: 0.45rem 0.55rem;
  background: #f0e8d8;
  color: #212121;
  border: 1px solid #c8baa0;
}
.forgot-link {
  font-size: 0.92rem;
  color: var(--accent);
  text-decoration: underline;
}
.register-accordion {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  margin-bottom: 0.9rem;
}
.register-accordion summary {
  cursor: pointer;
  font-weight: 600;
  padding: 0.7rem 0.9rem;
}
.register-accordion-content {
  border-top: 1px solid var(--line);
  padding: 0.8rem 0.9rem;
}
.register-accordion-content p {
  margin-top: 0;
}
.register-accordion-content p:last-child {
  margin-bottom: 0;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(3px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (max-width: 700px) {
  header { flex-direction: column; align-items: flex-start; gap: 0.4rem; }
  main { width: 94%; }
  table, thead, tbody, tr, td, th { display: block; }
  thead { display: none; }
  td { border: 0; border-bottom: 1px solid var(--line); }
  .home-top-grid { grid-template-columns: 1fr; }
  .diapo-head { align-items: flex-start; }
  .diapo-logo { width: 76px; height: 76px; }
  .top-logo { width: 125px; }
  .diapo-grid { grid-template-columns: 1fr; }
  .diapo-visual { justify-self: start; max-width: 180px; }
  .diapo-visual-large { max-width: 100%; }
  .diapo-controls { flex-direction: column; }
  .diapo-btn { width: 100%; }
  .article-wall-layout { grid-template-columns: 1fr; }
  .visual-lab-layout { grid-template-columns: 1fr; }
  .visual-lab-panel { position: static; }
  .visual-lab-canvas { height: 480px; }
  .visual-scatter-letters {
    width: 28px;
    left: 10px;
    top: 10px;
    bottom: 10px;
  }
  .visual-scatter-letter-btn {
    font-size: 0.76rem;
  }
  .wall-info { position: static; }
}