/* =========================================================
   Relais de Quartier — design tokens
   Palette: paper cream / ink / signal red / moss / ochre / slate
   Type: Fraunces (display) + IBM Plex Sans (body) + IBM Plex Mono (data)
   ========================================================= */

:root{
  --cream: #F5F0E6;
  --paper: #FBF8F1;
  --ink: #2A2521;
  --ink-soft: #5B5349;
  --signal: #B33A2E;
  --signal-dark: #8E2E24;
  --moss: #435E45;
  --ochre: #C68A3E;
  --slate: #3E5266;
  --line: #DED2BC;
  --line-soft: #EAE1CD;
  --radius: 14px;
  --shadow-card: 0 1px 2px rgba(42,37,33,0.06), 0 12px 28px -14px rgba(42,37,33,0.18);
  --font-display: "Fraunces", serif;
  --font-body: "IBM Plex Sans", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color: inherit; }
h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  margin: 0 0 0.5em;
  color: var(--ink);
  letter-spacing: -0.01em;
}
h1{ font-size: clamp(2.4rem, 4.6vw, 3.9rem); font-weight: 500; }
h2{ font-size: clamp(1.7rem, 3vw, 2.5rem); }
h3{ font-size: 1.3rem; }
h4{ font-size: 1.02rem; font-weight: 600; }
p{ margin: 0 0 1em; color: var(--ink-soft); }

.wrap{ max-width: 1160px; margin: 0 auto; padding: 0 28px; }

.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0 0 0.9em;
  font-weight: 600;
}

.section-lead{
  max-width: 640px;
  font-size: 1.05rem;
}

/* buttons */
.btn{
  display:inline-flex;
  align-items:center;
  gap:0.5em;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.98rem;
  padding: 0.85em 1.5em;
  border-radius: 999px;
  text-decoration:none;
  transition: transform .15s ease, box-shadow .15s ease, background-color .15s ease;
  border: 1px solid transparent;
  cursor:pointer;
}
.btn-signal{
  background: var(--signal);
  color: #fff;
  box-shadow: 0 8px 20px -8px rgba(179,58,46,0.55);
}
.btn-signal:hover{ background: var(--signal-dark); transform: translateY(-1px); }
.btn-ghost{
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover{ border-color: var(--ink); }
.btn-small{ padding: 0.55em 1.15em; font-size: 0.88rem; }
.btn-large{ padding: 1em 2em; font-size: 1.05rem; }

/* =============== HEADER =============== */
.site-header{
  position: sticky; top:0; z-index: 50;
  background: rgba(245,240,230,0.86);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.header-inner{
  display:flex; align-items:center; gap: 28px;
  height: 74px;
}
.brand{ display:flex; align-items:center; gap:0.6em; text-decoration:none; margin-right: auto; color: var(--ink); }
.brand-mark{ width:30px; height:30px; color: var(--ink); flex:none; }
.brand-mark svg{ width:100%; height:100%; }
.brand-word{ font-family: var(--font-display); font-size:1.18rem; font-weight:600; color:var(--ink); white-space:nowrap; }
.brand-word em{ font-style:normal; color: var(--signal); display:block; font-size:0.62em; letter-spacing:0.03em; margin-top:-2px; font-weight:500; }

.main-nav{ display:flex; gap: 26px; }
.main-nav a{
  text-decoration:none; color: var(--ink-soft); font-size:0.93rem; font-weight:500;
  position:relative; padding: 6px 0;
}
.main-nav a:hover{ color: var(--ink); }

.nav-toggle{ display:none; background:none; border:none; width:34px; height:26px; flex-direction:column; justify-content:space-between; padding:0; cursor:pointer; }
.nav-toggle span{ display:block; height:2px; background:var(--ink); border-radius:2px; }

/* =============== HERO =============== */
.hero{
  padding: 84px 0 0;
  border-bottom: 1px solid var(--line-soft);
}
.hero-inner{
  max-width: 720px;
  text-align: center;
  display:flex;
  flex-direction: column;
  align-items: center;
}
.hero-inner .eyebrow{ }
.hero-lead{ font-size:1.08rem; max-width: 48ch; }
.hero h1{ margin-bottom:0.4em; }
.hero h1 em{ font-style:normal; color: var(--signal); }
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; justify-content:center; margin: 1.6em 0 2.2em; }

.hero-facts{ list-style:none; margin:0 0 1.6em; padding:0; display:flex; gap: 30px; flex-wrap:wrap; justify-content:center; }
.hero-facts li{
  display:flex; flex-direction:column; align-items:center; font-size:0.82rem; color:var(--ink-soft);
  border-top: 2px solid var(--line); padding-top:10px;
}
.hero-facts li span{ font-family: var(--font-mono); font-size:1.15rem; font-weight:600; color:var(--ink); }

.hero-demo-url{ font-size:0.9rem; color: var(--ink-soft); }
.hero-demo-url a{ color: var(--signal); font-weight:600; text-decoration:none; border-bottom:1px solid currentColor; }

.hero-shots{
  display:grid; grid-template-columns: 1.4fr 1fr; gap: 26px;
  padding: 46px 0 0;
  align-items: end;
}
.hero-shot{ margin:0; }
.hero-shot img{
  width:100%; border-radius: 12px; border:1px solid var(--line-soft); box-shadow: var(--shadow-card);
}
.hero-shot figcaption{
  font-family: var(--font-mono); font-size:0.72rem; color: var(--ink-soft);
  margin-top:10px; letter-spacing:0.02em;
}
.status-chip{
  display:inline-flex; align-items:center; gap:8px;
  background: var(--paper); border-radius: 999px; box-shadow: var(--shadow-card);
  padding: 10px 18px; font-size:0.74rem; font-family: var(--font-mono); color: var(--ink-soft);
  border: 1px solid var(--line-soft);
}
.dot{ width:9px; height:9px; border-radius:50%; display:inline-block; }
.dot-red{ background: var(--signal); }
.dot-amber{ background: var(--ochre); }
.dot-green{ background: var(--moss); }

/* =============== SECTIONS =============== */
.section{ padding: 88px 0; }
.section-tint{ background: var(--paper); border-top:1px solid var(--line-soft); border-bottom:1px solid var(--line-soft); }

.grid-2{ display:grid; grid-template-columns: 1fr 1fr; gap: 44px; }
.grid-3{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }

/* Problem */
.problem-grid{ margin-top: 34px; align-items:start; }
.problem-lead p{ font-size:1.04rem; }
.pitch-quote{
  font-family: var(--font-display); font-style: italic; font-size:1.18rem;
  color: var(--ink); border-left: 3px solid var(--signal); padding-left:18px;
  margin-top:1.4em;
}
.problem-list{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:18px; }
.problem-list li{
  display:flex; align-items:baseline; gap:14px;
  font-size:1rem; color:var(--ink);
  border-bottom: 1px solid var(--line-soft); padding-bottom:16px;
}
.problem-list .num{ font-family: var(--font-mono); color: var(--signal); font-weight:600; font-size:0.85rem; }

/* Roles */
.role-grid{ margin: 34px 0 56px; }
.role-card{
  background: var(--paper); border:1px solid var(--line-soft); border-radius: var(--radius);
  padding: 30px 30px 26px; position:relative;
}
.role-index{
  font-family: var(--font-mono); font-size:0.78rem; color:#fff; background: var(--ink);
  width:26px; height:26px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  margin-bottom: 16px;
}
.architecture-note h3{ margin-bottom: 24px; }
.arch-grid h4{ color: var(--slate); margin-bottom: 10px; }
.arch-grid ul{ margin:0; padding-left: 18px; color: var(--ink-soft); }
.arch-grid li{ margin-bottom:8px; font-size:0.95rem; }

/* Modes */
.mode-block{
  display:grid; grid-template-columns: 0.85fr 1.15fr; gap: 48px; align-items:center;
  padding: 40px 0;
  border-bottom: 1px solid var(--line-soft);
}
.mode-block:last-child{ border-bottom:none; }
.mode-block.reverse{ direction: rtl; }
.mode-block.reverse > *{ direction: ltr; }
.mode-index{
  font-family: var(--font-mono); color: var(--signal); font-weight:600; font-size:0.85rem;
  letter-spacing:0.08em;
}
.mode-copy h3{ margin-top:0.3em; }
.mode-shot{ border-radius: var(--radius); overflow:hidden; box-shadow: var(--shadow-card); border: 1px solid var(--line-soft); }

.steps-pair{
  display:grid; grid-template-columns: 1fr 1fr; gap: 40px;
  padding: 28px 0; border-bottom: 1px solid var(--line-soft);
}
.steps-pair:last-child{ border-bottom:none; }
.footnote{ font-size:0.82rem; color: var(--ink-soft); margin-top:8px; }
.essai-cta{ margin-top:36px; text-align:center; display:flex; flex-direction:column; align-items:center; gap:10px; }
.essai-cta p{ font-size:0.85rem; color: var(--ink-soft); margin:0; }

/* Alert deep dive */
.alert-grid{ margin: 34px 0 40px; }
.alert-card{
  background: var(--cream); border:1px solid var(--line-soft); border-radius: var(--radius); padding: 26px 26px 20px;
}
.alert-card h4{ color: var(--signal); margin-bottom:14px; }
.alert-card ul{ margin:0; padding-left:18px; color: var(--ink-soft); }
.alert-card li{ margin-bottom:8px; font-size:0.93rem; }
.alert-shots{ display:grid; grid-template-columns: 1fr 1.4fr; gap: 24px; align-items:start; }
.alert-shots img{ border-radius: var(--radius); border:1px solid var(--line-soft); box-shadow: var(--shadow-card); }

/* Crise */
.crise-grid{ margin-top:34px; }
.crise-card{
  background: var(--paper); border:1px solid var(--line-soft); border-radius: var(--radius); padding: 28px;
}
.crise-card img{ border-radius: 10px; margin: 18px 0; border:1px solid var(--line-soft); }
.crise-note{ font-size:0.88rem; font-style:italic; color: var(--ink-soft); margin:0; }

/* Installation table */
.table-wrap{ overflow-x:auto; margin: 34px 0 30px; border-radius: var(--radius); border:1px solid var(--line-soft); }
.config-table{ width:100%; border-collapse: collapse; background: var(--paper); font-size:0.94rem; }
.config-table th, .config-table td{ padding: 14px 18px; text-align:left; border-bottom:1px solid var(--line-soft); }
.config-table thead th{
  font-family: var(--font-mono); font-size:0.72rem; text-transform:uppercase; letter-spacing:0.06em;
  color: var(--ink-soft); background: var(--cream);
}
.config-table tbody tr:last-child td{ border-bottom:none; }
.tag{
  display:inline-block; margin-left:10px; font-size:0.7rem; font-family: var(--font-mono);
  background: var(--moss); color:#fff; padding: 3px 9px; border-radius: 999px; vertical-align: middle;
}
.badge-row{ list-style:none; margin:0; padding:0; display:flex; flex-wrap:wrap; gap:10px; }
.badge-row li{
  font-size:0.82rem; font-family: var(--font-mono); color: var(--slate);
  border:1px solid var(--line); border-radius:999px; padding:7px 14px; background: var(--cream);
}

/* Pricing */
.price-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 26px; margin: 34px 0 26px; }
.price-grid-single{ grid-template-columns: 1fr; max-width: 420px; }
.price-card{
  border-radius: var(--radius); padding: 34px; background: var(--paper);
  border:1px solid var(--line-soft); display:flex; flex-direction:column; gap:6px;
}
.price-card-hero{ background: var(--ink); color: var(--cream); border-color: var(--ink); }
.price-card-hero .price-label{ color: rgba(245,240,230,0.65); }
.price-card-hero .price-detail{ color: rgba(245,240,230,0.75); }
.price-card-alt{ background: var(--ink); color: var(--cream); border-color: var(--ink); }
.price-card-alt .price-label{ color: rgba(245,240,230,0.65); }
.price-card-alt .price-detail{ color: rgba(245,240,230,0.75); }
.price-label{ font-family: var(--font-mono); font-size:0.78rem; text-transform:uppercase; letter-spacing:0.08em; color: var(--ink-soft); }
.price-value{ font-family: var(--font-display); font-size: 2.6rem; font-weight:600; }
.price-value small{ font-size:0.4em; font-family: var(--font-body); font-weight:500; }
.price-detail{ font-size:0.92rem; color: var(--ink-soft); margin-top:6px; }
.price-notes{ list-style:none; margin:0 0 20px; padding:0; display:flex; flex-direction:column; gap:8px; }
.price-notes li{ font-size:0.92rem; color: var(--ink-soft); padding-left:18px; position:relative; }
.price-notes li::before{ content:"—"; position:absolute; left:0; color: var(--signal); }
.price-callout{ font-family: var(--font-display); font-size:1.2rem; color: var(--signal-dark); font-style:italic; }

/* Synthese */
.synth-grid{ margin-top:34px; }
.synth-card{ padding: 26px; background: var(--cream); border:1px solid var(--line-soft); border-radius: var(--radius); }
.synth-card .dot{ width:12px; height:12px; margin-bottom:14px; }
.synth-card p{ font-size:0.92rem; margin:0; }

/* CTA */
.cta-section{ text-align:center; }
.cta-wrap{ max-width: 680px; }
.cta-wrap .eyebrow, .cta-wrap h2, .cta-wrap p{ margin-left:auto; margin-right:auto; }
.cta-actions{ display:flex; gap:14px; flex-wrap:wrap; justify-content:center; margin-top: 12px; }
.cta-demo-note{ font-size:0.85rem; color: var(--ink-soft); margin-top:16px; }

/* Footer */
.site-footer{ background: var(--ink); color: rgba(245,240,230,0.7); padding: 46px 0; }
.footer-inner{ display:flex; flex-direction:column; gap:14px; }
.brand-footer .brand-mark{ color: var(--cream); }
.brand-footer .brand-word{ color: var(--cream); }
.site-footer p{ color: rgba(245,240,230,0.55); font-size:0.85rem; max-width: 520px; margin:0; }

/* =============== RESPONSIVE =============== */
@media (max-width: 920px){
  .hero-shots{ grid-template-columns: 1fr; }
  .grid-2, .grid-3{ grid-template-columns: 1fr; }
  .mode-block, .mode-block.reverse{ grid-template-columns: 1fr; direction: ltr; }
  .steps-pair{ grid-template-columns: 1fr; }
  .alert-shots{ grid-template-columns: 1fr; }
  .price-grid{ grid-template-columns: 1fr; }
  .main-nav{
    display:none; position:absolute; top:74px; left:0; right:0;
    background: var(--paper); border-bottom:1px solid var(--line-soft);
    flex-direction:column; padding: 10px 28px 22px; gap: 4px;
  }
  .main-nav.nav-open{ display:flex; }
  .main-nav a{ padding: 12px 0; border-bottom:1px solid var(--line-soft); }
  .header-cta{ display:none; }
  .nav-toggle{ display:flex; }
}

@media (max-width: 620px){
  .wrap{ padding: 0 20px; }
  .hero{ padding: 56px 0 0; }
  .section{ padding: 60px 0; }
  .hero-facts{ gap: 20px; }
}