:root {
  --bg: #232e3b;
  --bg-alt: #2c333a;
  --card: #111821;
  --txt: #e6edf3;
  --muted: #a9b2bd;
  --line: #1d2631;
  --acc1: #5fd59a;
  --acc2: #2fbf71;
  --good: #44d18d;
  --bad: #ff6b6b;
  --warn: #f7b955;
  --break: #283f30; 
}

* {
  box-sizing: border-box
}

html,
body {
  margin: 0;
  padding: 0
}

body {
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--txt);
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility
}

.container {
  width: min(1120px, 100%);
  margin-inline: auto
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: saturate(180%) blur(10px);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px
}

.brand {
  display: flex;
  gap: .6rem;
  align-items: center;
  color: var(--txt);
  text-decoration: none
}

.brand-logo {
  border-radius: 6px;
  box-shadow: 0 0 24px color-mix(in srgb, var(--acc1) 45%, transparent)
}

.brand-name {
  font-weight: 700;
  letter-spacing: .2px
}

.site-nav ul {
  display: flex;
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  padding: .5rem .75rem;
  border-radius: 8px
}

.site-nav a.active,
.site-nav a:hover {
  color: var(--txt);
  background: rgba(255, 255, 255, .06)
}

.nav-toggle {
  display: none
}

@media (max-width:840px) {
  .nav-toggle {
    display: inline-block;
    background: none;
    color: var(--txt);
    border: 1px solid var(--line);
    padding: .4rem .7rem;
    border-radius: 8px
  }

  .site-nav ul {
    display: none;
    position: absolute;
    right: 16px;
    top: 56px;
    background: var(--card);
    border: 1px solid var(--line);
    padding: .5rem;
    border-radius: 10px;
    flex-direction: column;
    min-width: 220px
  }

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

.hero {
  position: relative;
  padding: 72px 0 48px;
  overflow: hidden
}

.hero-bg {
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 480px;
  background: radial-gradient(60% 60% at 20% 20%, color-mix(in srgb, var(--acc1) 25%, transparent), transparent 60%), radial-gradient(70% 70% at 80% 20%, color-mix(in srgb, var(--acc2) 25%, transparent), transparent 60%);
  filter: blur(24px)
}

.hero h1 {
  font-size: clamp(1.8rem, 2vw + 1.2rem, 3rem);
  margin: 0 0 .6rem;
  font-weight: 800
}

.hero-sub {
  color: var(--muted);
  max-width: 72ch;
  margin: .2rem 0 1rem
}

.hero .tags {
  display: flex;
  gap: .7rem 1rem;
  flex-wrap: wrap;
  padding: 0;
  margin: 1rem 0 0;
  list-style: none
}

.hero .tags li {
  font-size: .95rem;
  color: var(--muted);
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--line);
  padding: .4rem .6rem;
  border-radius: 999px
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  text-decoration: none;
  border-radius: 10px;
  padding: .7rem 1rem;
  border: 1px solid var(--line);
  color: var(--txt)
}

.btn.primary {
  background: linear-gradient(135deg, var(--acc1), var(--acc2));
  border: 0;
  box-shadow: 0 10px 24px -10px color-mix(in srgb, var(--acc2) 45%, transparent)
}

.btn.ghost {
  background: transparent;
  color: var(--txt)
}

.section {
  padding: 56px 0;
  border-top: 1px solid var(--line)
}

.section.alt {
  background: linear-gradient(180deg, var(--bg-alt), var(--bg))
}

.section.plain {
  background: repeating-linear-gradient(
  45deg,
  #14151e,
  #292a34 10px,
  #1c2037 10px,
  #191c2e 20px
);
}
  


.section.highlight {
  background: linear-gradient(180deg, color-mix(in srgb, var(--acc2) 7%, var(--bg)), var(--bg-alt))
}

.lead {
  color: var(--muted);
  margin-top: -.4rem;
  margin-bottom: 1.2rem
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px
}

@media (max-width:1120px) {
  .kpi-grid {
    grid-template-columns: repeat(3, 1fr)
  }
}

@media (max-width:740px) {
  .kpi-grid {
    grid-template-columns: repeat(2, 1fr)
  }
}

@media (max-width:520px) {
  .kpi-grid {
    grid-template-columns: 1fr
  }
}

.kpi-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 16px 12px;
  transition: transform .2s ease, border-color .2s ease
}

.kpi-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--acc1) 35%, var(--line))
}

.kpi-card h3 {
  margin: .2rem 0 .4rem;
  font-weight: 600
}

.kpi {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 2.1rem;
  margin: .1rem 0 .2rem
}

.kpi .unit {
  font-size: 1.1rem;
  color: var(--muted);
  margin-left: .15rem
}

.meta {
  color: var(--muted);
  font-size: .95rem
}

.meta.up {
  color: var(--good)
}

.meta.down {
  color: var(--bad)
}

.meta.neutral {
  color: var(--muted)
}

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

@media (max-width:940px) {
  .cards {
    grid-template-columns: repeat(2, 1fr)
  }
}

@media (max-width:640px) {
  .cards {
    grid-template-columns: 1fr
  }
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px
}

.trend-grid {
  display: grid; 
  grid-template-columns: .7fr 1.3fr;
  gap: 3px;
  align-items: center 
}

@media (max-width:840px) {
  .trend-grid {
    grid-template-columns: 1fr
  }
}

.viz {
  background: var(--card);
  
  border-radius: 14px;
  
}

.viz svg {
  width: 100%;
  height: auto
}

.trend-points {
  display: grid;
  gap: 10px
}

.trend {
  display: flex;
  gap: .5rem;
  align-items: flex-start;
  background: var(--card);
  border: 1px solid var(--line);
  padding: 12px;
  border-radius: 12px;
   font-size: 1.5vw;
}

.badge {
  display: inline-grid;
  place-items: center;
  min-width: 24px;
  height: 24px;
  border-radius: 50%;
  color: #000;
  background: linear-gradient(135deg, var(--acc1), var(--acc2));
  font-weight: 800
}

.method dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  padding: 16px;
  border-radius: 14px
}

.actions {
  display: grid;
  gap: .7rem
}

.actions>li {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 12px 14px;
  border-radius: 12px
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 18px 0;
  color: var(--muted)
}

.sep {
  opacity: .4
}

canvas {
  max-width: 100%;
  margin: 12px 0 28px
}

/* Charts grid (quinconce) */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 18px
}

@media (max-width:1200px) {
  .charts-grid {
    grid-template-columns: repeat(8, 1fr)
  }
}

@media (max-width:820px) {
  .charts-grid {
    grid-template-columns: repeat(6, 1fr)
  }
}

@media (max-width:640px) {
  .charts-grid {
    grid-template-columns: repeat(4, 1fr)
  }
}

@media (max-width:520px) {
  .charts-grid {
    grid-template-columns: repeat(2, 1fr)
  }
}

.chart-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 14px 8px;
  grid-column: span 4;
  box-shadow: 0 8px 24px -16px rgba(0, 0, 0, .5)
}

.chart-card h3 {
  margin: .3rem 0 .6rem;
  font-size: 1.05rem;
  color: var(--txt)
}

.chart-card canvas {
  width: 100%;
  height: 260px
}

.chart-card.wide {
  grid-column: span 8
}

.chart-card.tall canvas {
  height: 320px
}


.chart-card.extrawide {
  grid-column: 1 / -1;
  /* s'étend de la première à la dernière colonne */
}

.chart-card.mid {
  grid-column: span 6;
  /* occupe 6 colonnes */
}

.charts-grid>.chart-card:nth-child(odd) {
  transform: translateY(6px)
}

.charts-grid>.chart-card:nth-child(even) {
  transform: translateY(-6px)
}

@media (max-width:820px) {
  .charts-grid>.chart-card {
    transform: none
  }
}

:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--acc1) 60%, white);
  outline-offset: 2px
}

@media print {

  .site-header,
  .site-footer,
  .btn,
  .nav-toggle {
    display: none !important
  }

  .section {
    page-break-inside: avoid
  }
}