/* ======================
   RESET & GLOBAL
====================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  background: #ede8d0;
  color: #2b1114;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: #2b1114;
  text-decoration: none;
}

/* ======================
   NAVIGATION
====================== */
nav ul.menu {
  list-style: none;
  display: flex;
  justify-content: center;
  background: #ca3504;
}

nav ul.menu li {
  position: relative;
}

nav a,
.submenu-toggle {
  display: block;
  padding: 14px 16px;
  color: white;
  cursor: pointer;
  transition: background-color 0.3s;
}

nav a:hover,
.submenu-toggle:hover {
  background-color: #d39a1c;
}

/* Icon + text only for the Accueil link */
nav a.nav-home {
  display: inline-flex; /* overrides nav a { display: block }  */
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  width: 100%;
}

nav a.nav-home .nav-icon {
  width: 1em;
  height: 1em;
  fill: currentColor;
  opacity: 0.95;
  transform: translateY(-1px);
}

.submenu {
  display: none;
  position: absolute;
  top: 100%;
  background: rgba(202, 53, 4, 0.75);
  border-radius: 0 0 8px 8px;
  min-width: 180px;
  list-style: none;
  z-index: 10;
}

.has-submenu:hover .submenu {
  display: flex;
  flex-direction: column;
}

.submenu a {
  padding: 10px 16px;
  white-space: nowrap;
}

/* ======================
   LAYOUT CONTAINER
====================== */
.container {
  max-width: 1100px;
  margin: 30px auto;
  padding: 24px;
}

/* ======================
   INTRO SECTION
====================== */
.intro {
  max-width: 1100px;
  list-style: none;
  line-height: 1.6;
}

.intro a {
  color: #555;
  text-decoration: underline dotted;
  font-weight: 500;
}

.intro a:hover {
  color: #ca3504;
}

.intro h1 {
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.intro ul {
  margin-bottom: 1rem;
}

.intro p {
  line-height: 1.6;
  margin-top: 0;
}

.instruction {
  font-size: 1rem;
  padding: 10px;
  font-weight: bold;
  border-radius: 8px;
  margin-top: 12px;
  line-height: 1.6;
}

.simulation {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
  max-width: 1100px;
  margin: 30px auto;
  padding: 24px;
  background: white;
  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* ======================
   DRAGGABLE SOURCES
====================== */
.sources {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.source-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.source-label {
  margin-top: 8px;
  font-weight: 700;
  font-size: 0.95rem;
}

.card {
  width: 140px;
  height: 140px;
  border-radius: 18px;
  font-weight: 700;
  cursor: grab;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease;
}

.card img {
  width: 100px;
}

.card[data-type="nuclear"] {
  background: #ff8f6d7d;
}
.card[data-type="geothermal"] {
  background: #ccbfc8;
}
.card[data-type="wind"] {
  background: #cdc4aa;
}
.card[data-type="solar"] {
  background: #d7a358;
}
.card[data-type="hydro"] {
  background: #baced7;
}
.card[data-type="biomass"] {
  background: #aab373;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
}

/* ======================
   GRID + INDICATORS
====================== */
.simulation-area {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 30px;
  width: 100%;
  max-width: 1200px;
}

.drop-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  width: 100%;
  max-width: 720px;
}

.drop-slot {
  aspect-ratio: 1 / 1;
  border: 3px solid transparent;
  border-radius: 16px;
  min-height: 220px; /* stable size */
  padding: 10px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Slot colors */
.drop-slot[data-type="nuclear"] {
  background: rgba(255, 25, 0, 0.174);
}
.drop-slot[data-type="geothermal"] {
  background: rgba(164, 147, 185, 0.35);
}
.drop-slot[data-type="wind"] {
  background: rgba(197, 186, 154, 0.35);
}
.drop-slot[data-type="solar"] {
  background: rgba(230, 169, 83, 0.35);
}
.drop-slot[data-type="hydro"] {
  background: rgba(141, 194, 226, 0.221);
}
.drop-slot[data-type="biomass"] {
  background: rgba(153, 161, 96, 0.35);
}

.drop-slot.active {
  outline: 3px dashed #2b1114;
  outline-offset: -6px;
}

.drop-slot.ui-droppable-hover,
.drop-slot.ui-state-hover {
  outline: 3px dashed #2b1114;
  outline-offset: -6px;
}

.drop-slot h3 {
  text-align: center;
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.slot-content {
  flex: 1;
  height: 100%;
  overflow-y: scroll;
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  scrollbar-gutter: stable;
}

.mini-icon {
  width: 80px;
  margin: 2px;
}

/* ======================
   FEEDBACK ENERGY COUNTS
====================== */
#explanation {
  margin-top: 16px;
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.5;
  background: #f0f1f2;
  padding: 14px 16px;
  border-radius: 10px;
}

#energy-counts {
  margin-top: 14px;
  padding-left: 0;
  list-style: none;
}

#energy-counts li {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 6px;
  padding: 6px 10px;
  background: #f0f1f2;
  border-radius: 6px;
}
/* ======================
   RESET BUTTON
====================== */
.reset-container {
  text-align: center;
}

#reset {
  margin: 20px auto 40px;
  padding: 10px 20px;
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  background: #d39a1c;
  color: white;
  cursor: pointer;
  transition:
    background-color 0.2s ease,
    transform 0.1s ease;
}

#reset:hover {
  background: #d39a1c;
  transform: translateY(-2px);
}

/* ======================
   IMPACT EXPLORER
====================== */
.impact-explorer {
  max-width: 1100px;
  margin: 30px auto;
  padding: 24px;
  background: white;
  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.impact-explorer h2 {
  font-size: 1.4rem;
  margin-bottom: 16px;
  text-align: center;
}

.impact-sources {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
  margin: 24px 0 32px;
}

.impact-content {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: start;
  margin-top: 24px;
}

.impact-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Clickable impact icons */
.impact-icon {
  background: radial-gradient(
    circle at 30% 30%,
    #ffffffaa,
    transparent 35%,
    rgba(0, 0, 0, 0.35) 75%
  );
  width: 120px;
  height: 120px;
  box-shadow:
    inset -6px -10px 14px rgba(0, 0, 0, 0.35),
    inset 4px 6px 10px rgba(255, 255, 255, 0.35),
    0 14px 26px rgba(0, 0, 0, 0.35);
  border-radius: 50%;
}

.impact-icon img {
  pointer-events: none;
}

/* Hover feedback */
.impact-icon:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow:
    0 14px 26px rgba(0, 0, 0, 0.3),
    inset 0 2px 4px rgba(255, 255, 255, 0.4),
    inset 0 -4px 6px rgba(0, 0, 0, 0.25);
}

.impact-icon.active {
  transform: scale(1.2);
}

.impact-label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-top: 10px;
  font-weight: 600;
}

.impact-label strong {
  font-size: 0.95rem;
  font-weight: 800;
  white-space: nowrap;
}

.impact-label span {
  font-size: 0.82rem;
  font-weight: 500;
  color: #555;
  line-height: 1.2;
  text-align: right;
}

/* ======================
   INDICATORS PANEL
====================== */
.indicators {
  background: white;
  padding: 16px;
  border-radius: 12px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.indicator-explanation {
  background: #fafafa;
  padding: 18px 20px;
  border-radius: 12px;
  font-size: 0.95rem;
  line-height: 1.6;
}

.indicator-explanation h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.indicator-explanation .placeholder {
  color: #666;
  font-style: italic;
}

.indicator label {
  font-weight: 600;
  font-size: 0.85rem;
  display: block;
  margin-top: 8px;
}

.indicator label strong {
  font-size: 1.05rem;
  font-weight: 700;
}

.indicator-explanation ul {
  list-style: none;
  padding-left: 0;
}

.indicator-explanation li {
  margin-bottom: 6px;
}

.bar {
  height: 25px;
  background: #e5e7eb;
  border-radius: 8px;
  margin-bottom: 16px;
  position: relative;
  overflow: hidden;
}

.bar::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
    to right,
    rgba(43, 17, 20, 0.8) 1px,
    transparent 1px
  );
  background-size: 20% 100%;
  pointer-events: none;
  opacity: 0.35;
}

.bar > div {
  height: 100%;
  width: 0;
  background: #d39a1c;
  border-radius: 5px;
  transition: width 0.2s ease;
}

#indicator-title {
  font-size: 2rem;
  font-weight: 700;
  color: #d39a1c;
  margin-bottom: 12px;
}

/* ======================
   QUALITATIVE LEGEND
====================== */
.impact-scale-hint {
  margin: 6px 0 12px;
  font-size: 0.9rem;
  color: #555;
  line-height: 1.4;
}

.impact-legend {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  margin: 10px 0 18px;
  font-size: 0.78rem;
  text-align: center;
  color: #2b1114;
}

.impact-legend .tick {
  background: #f0f1f2;
  padding: 6px 4px;
  border-radius: 8px;
  border: 1px solid rgba(43, 17, 20, 0.08);
}

/* ======================
   RESOURCES 
====================== */
.resources {
  margin-top: 16px;
  font-size: 0.95rem;

  padding: 14px 16px;
  border-radius: 8px;
}

.resources ul {
  margin-top: 8px;
  padding-left: 20px;
}

.resources li {
  margin-bottom: 6px;
  line-height: 1.5;
}
.resources a {
  color: #555;
  text-decoration: underline dotted;
  font-weight: 500;
}

.note {
  margin-top: 20px;
  padding: 12px 16px;
  list-style: none;
  font-size: 0.9rem;
  line-height: 1.5;
  font-style: italic;
}

/* ===== MODAL ===== */
#modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(197, 186, 154, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

#modal-overlay.hidden {
  display: none;
}

#modal-box {
  background: white;
  padding: 24px 28px;
  border-radius: 16px;
  max-width: 420px;
  width: 90%;
  position: relative;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  text-align: center;
}

#modal-close {
  position: absolute;
  top: 8px;
  right: 12px;
  background: none;
  border: none;
  font-size: 26px;
  font-weight: bold;
  cursor: pointer;
}

/* ======================
   FOOTER
====================== */
footer {
  margin-top: auto;
  text-align: center;
  background: #ede8d0;
  padding: 20px;
}

footer a {
  text-decoration: underline;
}

/* ======================
   FOX GUIDE (Floating)
====================== */
#fox-guide {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  display: flex;
  align-items: flex-end;
  gap: 12px;

  /* allow clicks only on fox + bubble */
  pointer-events: none;
}

#fox-avatar {
  width: 160px;
  height: auto;
  cursor: pointer;
  pointer-events: auto;
  transition: transform 0.2s ease;
}

#fox-avatar:hover {
  transform: scale(1.1);
}

#fox-bubble {
  position: absolute;
  bottom: 110%;
  right: 0;
  max-width: 260px;
  background: #fff7e6;
  border-radius: 12px;
  padding: 14px 16px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
  font-size: 0.95rem;
  line-height: 1.4;
  pointer-events: auto;
}

/* Hidden by default */
#fox-bubble.hidden {
  display: none;
}

/* Mobile adjustment */
@media (max-width: 600px) {
  #fox-guide {
    right: 12px;
    bottom: 12px;
  }

  #fox-avatar {
    width: 70px;
  }

  #fox-bubble {
    max-width: 220px;
    font-size: 0.9rem;
  }
}

/* ======================
   RESPONSIVE
====================== */
@media (max-width: 900px) {
  .simulation-area {
    grid-template-columns: 1fr;
  }

  .impact-content {
    grid-template-columns: 1fr;
  }

  .indicator-explanation {
    border-left: none;
    border-top: none;
  }

  #courses {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 800px) {
  nav ul.menu {
    flex-direction: column;
    text-align: center;
  }

  nav ul.menu li {
    width: 100%;
  }

  header h1 {
    font-size: 1.2em;
  }

  header h4 {
    font-size: 1em;
  }

  .sources {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    justify-items: center;
  }

  .energy-icon {
    width: 80px;
    height: 80px;
  }

  .energy-icon img {
    width: 70px;
    height: 70px;
  }

  .source-label {
    font-size: 0.8rem;
  }

  .drop-grid {
    gap: 12px;
  }

  .drop-slot {
    min-height: 140px;
    padding: 12px;
  }

  .drop-slot h3 {
    font-size: 1rem;
    margin-bottom: 8px;
  }

  .slot-content {
    min-height: 80px;
  }

  .simulation-area {
    flex-direction: column;
  }

  .mix-feedback {
    margin-top: 20px;
  }

  #fox-avatar {
    width: 120px;
    height: auto;
  }

  #fox-bubble {
    max-width: 260px;
    font-size: 0.95rem;
    padding: 12px 14px;
    line-height: 1.4;
  }

  #fox-guide {
    bottom: 30px;
    right: 16px;
  }

  .drop-slot {
    border-width: 2px;
  }

  .drop-slot.ui-droppable-hover {
    border-color: #d39a1c;
    background-color: #fff8e6;
  }
}
@media (max-width: 600px) {
  #courses {
    grid-template-columns: 1fr;
  }

  .submenu {
    position: static;
    background: rgba(202, 53, 4, 0.95);
    width: 100%;
    text-align: center;
    padding: 10px 0;
  }
  .submenu a {
    padding: 18px;
    font-size: 1.1em;
  }

  .has-submenu > .submenu-toggle::after {
    content: " ▾";
    font-size: 1.2em;
  }
}