/* ==========================================================
   BASSILI HOME SARLU — Feuille de style principale
   Palette inspirée du logo (dégradé jaune → orange → rouge)
   Signature : la "ligne de fret" — un tracé de route commerciale
   qui relie Brazzaville à ses partenaires import-export.
   ========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&family=IBM+Plex+Mono:wght@500&display=swap');

:root {
  /* Couleurs */
  --ink:        #15130f;
  --ink-soft:   #2c2820;
  --paper:      #faf6ee;
  --paper-dim:  #f1ead9;
  --vermillion: #e2461b;
  --amber:      #f5a623;
  --rust:       #a52a1e;
  --slate:      #5b5546;
  --line:       #e4dcc8;
  --white:      #ffffff;

  --gradient-brand: linear-gradient(115deg, #f5c518 0%, var(--amber) 30%, var(--vermillion) 65%, var(--rust) 100%);

  /* Typo */
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --radius: 4px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.1;
  margin: 0 0 .5em;
  letter-spacing: -0.01em;
}

p { margin: 0 0 1em; color: var(--ink-soft); }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--vermillion);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}
.eyebrow::before {
  content: '';
  width: 18px;
  height: 2px;
  background: var(--gradient-brand);
  display: inline-block;
}

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .95rem;
  padding: 13px 26px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn-primary {
  background: var(--ink);
  color: var(--paper);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(21,19,15,.25); }
.btn-accent {
  background: var(--gradient-brand);
  color: var(--ink);
}
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(226,70,27,.35); }
.btn-outline {
  background: transparent;
  border-color: var(--ink);
  color: var(--ink);
}
.btn-outline:hover { background: var(--ink); color: var(--paper); }
.btn-ghost-light { background: transparent; border-color: rgba(250,246,238,.4); color: var(--paper); }
.btn-ghost-light:hover { background: rgba(250,246,238,.12); }
.btn-sm { padding: 8px 16px; font-size: .82rem; }
.btn-danger { background: var(--rust); color: var(--white); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250,246,238,.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 42px; width: auto; }
.brand-text { font-family: var(--font-display); font-weight: 700; font-size: 1.02rem; line-height: 1.15; }
.brand-text span { display: block; font-family: var(--font-mono); font-size: .62rem; letter-spacing: .1em; color: var(--vermillion); text-transform: uppercase; font-weight: 500; }

.main-nav { display: flex; align-items: center; gap: 30px; }
.main-nav a {
  font-size: .92rem;
  font-weight: 500;
  color: var(--ink-soft);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: border-color .15s, color .15s;
}
.main-nav a:hover, .main-nav a.active { color: var(--vermillion); border-color: var(--vermillion); }
.nav-toggle { display: none; }

/* ---------- Hero (manifeste) ---------- */
.hero {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
  padding: 90px 0 0;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 2;
}
.hero h1 {
  font-size: clamp(2.4rem, 4.4vw, 3.6rem);
  color: var(--paper);
  margin-bottom: .4em;
}
.hero h1 em {
  font-style: normal;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lede { color: #d8d2c2; font-size: 1.08rem; max-width: 46ch; }
.hero-actions { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }

/* Manifest / route diagram — signature element */
.manifest {
  border: 1px solid rgba(250,246,238,.18);
  border-radius: var(--radius);
  background: rgba(250,246,238,.04);
  padding: 22px;
  font-family: var(--font-mono);
}
.manifest-head {
  display: flex;
  justify-content: space-between;
  font-size: .68rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #a49c86;
  border-bottom: 1px dashed rgba(250,246,238,.2);
  padding-bottom: 12px;
  margin-bottom: 14px;
}
.route-line {
  position: relative;
  display: flex;
  justify-content: space-between;
  padding: 10px 0 26px;
}
.route-line::before {
  content: '';
  position: absolute;
  top: 6px;
  left: 6px;
  right: 6px;
  height: 2px;
  background: var(--gradient-brand);
}
.route-stop { position: relative; text-align: center; font-size: .66rem; color: #cfc7b3; width: 60px; }
.route-stop .dot {
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--paper); border: 2px solid var(--vermillion);
  margin: 0 auto 8px; position: relative; z-index: 1;
}
.route-stop.origin .dot { background: var(--amber); border-color: var(--amber); }
.manifest-rows { border-top: 1px dashed rgba(250,246,238,.2); padding-top: 14px; display: grid; gap: 9px; }
.manifest-rows div { display: flex; justify-content: space-between; font-size: .74rem; color: #cfc7b3; }
.manifest-rows span:last-child { color: var(--paper); font-weight: 500; }

.hero-marquee {
  border-top: 1px solid rgba(250,246,238,.14);
  margin-top: 70px;
  padding: 16px 0;
  overflow: hidden;
  white-space: nowrap;
}
.hero-marquee .track {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .06em;
  color: #948c76;
  animation: scroll-left 26s linear infinite;
}
.hero-marquee .track span { margin: 0 26px; }
@keyframes scroll-left { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- Sections génériques ---------- */
.section { padding: 90px 0; }
.section-tight { padding: 60px 0; }
.section-alt { background: var(--paper-dim); }
.section-dark { background: var(--ink); color: var(--paper); }
.section-dark p { color: #c9c1ac; }
.section-head { max-width: 640px; margin-bottom: 50px; }
.section-head h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); }

/* ---------- Cartes services ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }

.service-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 28px;
  position: relative;
  transition: transform .18s ease, box-shadow .18s ease;
}
.service-card:hover { transform: translateY(-4px); box-shadow: 0 16px 32px rgba(21,19,15,.08); }
.service-card .code {
  font-family: var(--font-mono);
  font-size: .68rem;
  color: var(--vermillion);
  letter-spacing: .08em;
  margin-bottom: 16px;
  display: block;
}
.service-card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.service-card .icon-mark {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--gradient-brand);
  margin-bottom: 18px;
}
.service-card a.more { font-size: .84rem; font-weight: 600; color: var(--ink); border-bottom: 1px solid var(--vermillion); }

/* ---------- Cartes produits ---------- */
.product-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow .18s ease, transform .18s ease;
}
.product-card:hover { box-shadow: 0 14px 30px rgba(21,19,15,.09); transform: translateY(-3px); }
.product-media {
  aspect-ratio: 4/3;
  background: var(--paper-dim);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  overflow: hidden;
}
.product-media img { width: 100%; height: 100%; object-fit: cover; }
.product-media .ph { font-family: var(--font-mono); font-size: .7rem; color: var(--slate); }
.tag-sens {
  position: absolute; top: 10px; left: 10px;
  font-family: var(--font-mono); font-size: .62rem; text-transform: uppercase; letter-spacing: .06em;
  background: var(--ink); color: var(--paper); padding: 4px 9px; border-radius: 2px;
}
.tag-sens.export { background: var(--vermillion); }
.product-body { padding: 18px 20px 22px; }
.product-body .ref { font-family: var(--font-mono); font-size: .66rem; color: var(--slate); }
.product-body h3 { font-size: 1.02rem; margin: 6px 0 8px; }
.product-body .prix { font-family: var(--font-display); font-weight: 600; color: var(--vermillion); }
.product-filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 36px; }
.product-filters a {
  font-family: var(--font-mono); font-size: .74rem; text-transform: uppercase; letter-spacing: .05em;
  padding: 8px 14px; border: 1px solid var(--line); border-radius: 20px; color: var(--ink-soft);
}
.product-filters a.active, .product-filters a:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* ---------- Stats / bandeau chiffres ---------- */
.stat-strip { display: grid; grid-template-columns: repeat(4,1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stat-strip div { padding: 30px 20px; text-align: center; border-left: 1px solid var(--line); }
.stat-strip div:first-child { border-left: none; }
.stat-strip strong { display: block; font-family: var(--font-display); font-size: 2rem; color: var(--vermillion); }
.stat-strip span { font-size: .78rem; color: var(--slate); text-transform: uppercase; letter-spacing: .05em; }

/* ---------- Formulaires ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.field.full { grid-column: 1 / -1; }
label { font-size: .8rem; font-weight: 600; color: var(--ink-soft); }
input, select, textarea {
  font-family: var(--font-body);
  font-size: .95rem;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--vermillion); outline-offset: 1px; border-color: var(--vermillion); }
textarea { resize: vertical; min-height: 130px; }

.alert { padding: 14px 18px; border-radius: var(--radius); font-size: .88rem; margin-bottom: 22px; }
.alert-success { background: #eaf3e6; color: #2c5c1f; border: 1px solid #bfdcb2; }
.alert-error { background: #fbe9e6; color: var(--rust); border: 1px solid #f3c4ba; }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: #c9c1ac; padding: 64px 0 26px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 50px; }
.footer-grid h4 { color: var(--paper); font-size: .82rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 16px; }
.footer-grid a, .footer-grid p { color: #a49c86; font-size: .9rem; }
.footer-grid li { list-style: none; margin-bottom: 10px; }
.footer-grid ul { padding: 0; margin: 0; }
.footer-grid a:hover { color: var(--amber); }
.footer-bottom {
  border-top: 1px solid rgba(250,246,238,.12);
  padding-top: 22px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
  font-size: .78rem; color: #837c68;
}

/* ---------- Divers pages ---------- */
.page-hero { background: var(--ink); color: var(--paper); padding: 60px 0 50px; }
.page-hero h1 { color: var(--paper); font-size: clamp(2rem, 3.6vw, 2.8rem); }
.breadcrumb { font-family: var(--font-mono); font-size: .7rem; color: #a49c86; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 16px; }
.breadcrumb a { color: #a49c86; }

.timeline { border-left: 2px solid var(--line); padding-left: 30px; display: grid; gap: 34px; }
.timeline .item .yr { font-family: var(--font-mono); color: var(--vermillion); font-size: .78rem; }

.value-card { padding: 26px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stat-strip { grid-template-columns: repeat(2,1fr); }
  .form-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .main-nav { position: fixed; inset: 62px 0 0 0; background: var(--paper); flex-direction: column; padding: 30px 24px; gap: 22px; transform: translateY(-110%); transition: transform .25s ease; }
  .main-nav.open { transform: translateY(0); }
  .nav-toggle { display: block; background: none; border: none; font-size: 1.4rem; cursor: pointer; }
  .footer-grid { grid-template-columns: 1fr; }
  .stat-strip { grid-template-columns: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-marquee .track { animation: none; }
  * { scroll-behavior: auto !important; }
}