/* ============================================================
   COMPARATEUR DE VILLES FRANÇAISES
   SAE Outils Décisionnels — IUT
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300&display=swap');

:root {
  --bleu:        #1a3a5c;
  --bleu-clair:  #2a6496;
  --azur:        #3b9edd;
  --ciel:        #d6ecf9;
  --rouge:       #c0392b;
  --rouge-clair: #e74c3c;
  --or:          #f39c12;
  --vert:        #27ae60;
  --gris-fond:   #f4f6f9;
  --gris-bord:   #dde3ea;
  --blanc:       #ffffff;
  --texte:       #1c2b3a;
  --texte-2:     #5a7184;
  --ombre:       0 4px 24px rgba(26,58,92,.10);
  --ombre-lg:    0 8px 40px rgba(26,58,92,.16);
  --radius:      14px;
  --radius-sm:   8px;
  --transition:  .22s cubic-bezier(.4,0,.2,1);
}

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

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--gris-fond);
  color: var(--texte);
  min-height: 100vh;
  font-size: 15px;
  line-height: 1.6;
}

/* ---- HEADER ---- */
header {
  background: linear-gradient(135deg, var(--bleu) 0%, #0f2744 60%, #1a3a5c 100%);
  color: var(--blanc);
  padding: 0;
  position: relative;
  overflow: hidden;
}
header::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 32px 24px;
  position: relative;
}
.header-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .5px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
h1 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -.5px;
  line-height: 1.1;
}
h1 span { color: var(--azur); }
.header-sub {
  font-size: 14px;
  color: rgba(255,255,255,.65);
  margin-top: 6px;
}

/* ---- SÉLECTEUR DE VILLES ---- */
.selector-bar {
  background: var(--blanc);
  border-bottom: 1px solid var(--gris-bord);
  box-shadow: 0 2px 12px rgba(26,58,92,.07);
  position: sticky;
  top: 0;
  z-index: 100;
}
.selector-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.city-picker {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  min-width: 220px;
}
.city-picker-label {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .5px;
  white-space: nowrap;
}
.city-picker-label.ville-a { color: var(--bleu); }
.city-picker-label.ville-b { color: var(--rouge); }

.city-select {
  flex: 1;
  padding: 10px 14px;
  border: 2px solid var(--gris-bord);
  border-radius: var(--radius-sm);
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  font-weight: 500;
  background: var(--gris-fond);
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235a7184' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 32px;
}
.city-select.ville-a:focus { border-color: var(--bleu); box-shadow: 0 0 0 3px rgba(26,58,92,.12); outline: none; }
.city-select.ville-b:focus { border-color: var(--rouge); box-shadow: 0 0 0 3px rgba(192,57,43,.12); outline: none; }

.vs-badge {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 18px;
  color: var(--texte-2);
  padding: 0 4px;
}

.btn-compare {
  padding: 10px 24px;
  background: linear-gradient(135deg, var(--bleu) 0%, var(--bleu-clair) 100%);
  color: var(--blanc);
  border: none;
  border-radius: var(--radius-sm);
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}
.btn-compare:hover { transform: translateY(-1px); box-shadow: var(--ombre); }
.btn-compare:active { transform: translateY(0); }
.btn-compare:disabled { opacity: .5; cursor: not-allowed; transform: none; }

/* ---- CONTENU PRINCIPAL ---- */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 32px 60px;
}

/* ---- CARTE ---- */
.map-section {
  background: var(--blanc);
  border-radius: var(--radius);
  box-shadow: var(--ombre);
  overflow: hidden;
  margin-bottom: 24px;
  border: 1px solid var(--gris-bord);
}
.map-header {
  padding: 16px 20px 12px;
  border-bottom: 1px solid var(--gris-bord);
  display: flex;
  align-items: center;
  gap: 10px;
}
.map-header h2 {
  font-family: 'Syne', sans-serif;
  font-size: 15px;
  font-weight: 700;
}
.distance-pill {
  margin-left: auto;
  background: var(--ciel);
  color: var(--bleu-clair);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 600;
}
#map { height: 400px; width: 100%; }

/* ---- INFOBULLES ---- */
.infobulles {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 16px;
  margin-bottom: 24px;
  align-items: start;
}
.infobulle-card {
  background: var(--blanc);
  border-radius: var(--radius);
  box-shadow: var(--ombre);
  border: 1px solid var(--gris-bord);
  overflow: hidden;
  transition: box-shadow var(--transition);
}
.infobulle-card:hover { box-shadow: var(--ombre-lg); }
.infobulle-header {
  padding: 14px 18px 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.infobulle-header.ville-a { background: linear-gradient(90deg, #e8f1f9 0%, #f4f8fc 100%); border-bottom: 3px solid var(--bleu); }
.infobulle-header.ville-b { background: linear-gradient(90deg, #fdf0ef 0%, #fdf5f4 100%); border-bottom: 3px solid var(--rouge); }
.city-name-big {
  font-family: 'Syne', sans-serif;
  font-size: 20px;
  font-weight: 800;
}
.ville-a .city-name-big { color: var(--bleu); }
.ville-b .city-name-big { color: var(--rouge); }
.city-dept {
  font-size: 12px;
  color: var(--texte-2);
  font-weight: 500;
}
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--gris-bord);
}
.info-cell {
  background: var(--blanc);
  padding: 12px 16px;
}
.info-cell-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--texte-2);
  margin-bottom: 3px;
}
.info-cell-value {
  font-family: 'Syne', sans-serif;
  font-size: 17px;
  font-weight: 700;
  color: var(--texte);
}
.info-cell-value.loading { color: var(--gris-bord); font-size: 14px; font-family: 'DM Sans', sans-serif; font-weight: 400; }
.vs-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 60px;
}
.vs-circle {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--bleu), var(--rouge));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 14px;
  color: var(--blanc);
  box-shadow: var(--ombre);
}

/* ---- ONGLETS ---- */
.tabs-section {
  background: var(--blanc);
  border-radius: var(--radius);
  box-shadow: var(--ombre);
  border: 1px solid var(--gris-bord);
  overflow: hidden;
}
.tabs-nav {
  display: flex;
  border-bottom: 2px solid var(--gris-bord);
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs-nav::-webkit-scrollbar { display: none; }
.tab-btn {
  padding: 14px 20px;
  border: none;
  background: none;
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 500;
  color: var(--texte-2);
  cursor: pointer;
  white-space: nowrap;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: color var(--transition), border-color var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}
.tab-btn:hover { color: var(--bleu); }
.tab-btn.active { color: var(--bleu); border-bottom-color: var(--bleu); font-weight: 600; }
.tab-content { display: none; padding: 24px; }
.tab-content.active { display: block; }

/* ---- COMPARAISON BARS ---- */
.compare-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.compare-label {
  font-size: 13px;
  font-weight: 500;
  width: 160px;
  flex-shrink: 0;
  color: var(--texte-2);
}
.compare-bars {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.bar-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}
.bar-track {
  flex: 1;
  height: 10px;
  background: var(--gris-fond);
  border-radius: 5px;
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  border-radius: 5px;
  transition: width .8s cubic-bezier(.4,0,.2,1);
}
.bar-fill.ville-a { background: linear-gradient(90deg, var(--bleu), var(--azur)); }
.bar-fill.ville-b { background: linear-gradient(90deg, var(--rouge), #e74c3c); }
.bar-val {
  font-family: 'Syne', sans-serif;
  font-size: 13px;
  font-weight: 700;
  width: 90px;
  text-align: right;
}
.bar-val.ville-a { color: var(--bleu); }
.bar-val.ville-b { color: var(--rouge); }

/* ---- MÉTÉO ---- */
.meteo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.meteo-card {
  border-radius: var(--radius-sm);
  border: 1px solid var(--gris-bord);
  overflow: hidden;
}
.meteo-card-header {
  padding: 12px 16px;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 14px;
  color: var(--blanc);
}
.meteo-card-header.ville-a { background: var(--bleu); }
.meteo-card-header.ville-b { background: var(--rouge); }
.meteo-days {
  display: flex;
  overflow-x: auto;
  padding: 12px;
  gap: 8px;
}
.meteo-day {
  flex-shrink: 0;
  background: var(--gris-fond);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  text-align: center;
  min-width: 72px;
}
.meteo-day-name { font-size: 11px; font-weight: 600; text-transform: uppercase; color: var(--texte-2); }
.meteo-day-icon { font-size: 22px; margin: 4px 0; }
.meteo-day-temp { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 15px; }
.meteo-day-rain { font-size: 11px; color: var(--azur); margin-top: 2px; }

/* ---- ÉTAT INITIAL ---- */
#welcome-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--texte-2);
}
#welcome-state .welcome-icon { font-size: 64px; margin-bottom: 16px; }
#welcome-state h2 { font-family: 'Syne', sans-serif; font-size: 22px; color: var(--texte); margin-bottom: 8px; }

#results { display: none; }

/* ---- SPINNER ---- */
.spinner-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(244,246,249,.8);
  z-index: 999;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 16px;
}
.spinner-overlay.visible { display: flex; }
.spinner {
  width: 48px; height: 48px;
  border: 4px solid var(--gris-bord);
  border-top-color: var(--bleu);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.spinner-text { font-family: 'Syne', sans-serif; font-weight: 600; color: var(--bleu); }

/* ---- MESSAGES D'ERREUR ---- */
.alert { border-radius: var(--radius-sm); padding: 12px 16px; margin-bottom: 16px; font-size: 13px; }
.alert-warning { background: #fff8e1; color: #856404; border: 1px solid #ffd966; }
.alert-info { background: var(--ciel); color: var(--bleu); border: 1px solid var(--azur); }

/* ---- CANVAS CHARTS ---- */
.chart-wrap { position: relative; height: 260px; margin-bottom: 24px; }
.chart-title { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 15px; margin-bottom: 12px; color: var(--texte); }

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
  .header-inner, main { padding-left: 16px; padding-right: 16px; }
  .selector-inner { padding: 12px 16px; gap: 10px; }
  .infobulles { grid-template-columns: 1fr; }
  .vs-divider { padding-top: 0; }
  .meteo-grid { grid-template-columns: 1fr; }
  .compare-label { width: 120px; font-size: 12px; }
  #map { height: 260px; }
}

/* ---- FOOTER ---- */
footer {
  background: var(--bleu);
  color: rgba(255,255,255,.6);
  text-align: center;
  padding: 20px;
  font-size: 13px;
  margin-top: 40px;
}
footer strong { color: var(--blanc); }