/* ============================================================================
   BIS — Business Intelligence Signals · bisfrance.com
   House style: navy + gold + cream. Slick, somber, classy. Static, no JS deps.
   ============================================================================ */
:root {
  --navy:   #0d1b35;
  --navy-2: #12244a;
  --gold:   #c9a84c;
  --gold-d: #8a6d1c;
  --cream:  #fbf8f3;
  --paper:  #ffffff;
  --ink:    #1a1a1a;
  --muted:  #5b6472;
  --border: #e8e2d6;
  --maxw:   1080px;
  --serif:  "Playfair Display", Georgia, serif;
  --sans:   "DM Sans", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--cream); color: var(--ink);
  font-family: var(--sans); font-size: 16px; line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: var(--serif); font-weight: 400; color: var(--navy); line-height: 1.2; }
a { color: var(--gold-d); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.muted { color: var(--muted); }
.center { text-align: center; }

/* ── Logo (inline SVG uses currentColor for the wordmark) ─────────────────── */
.bis-logo { height: 40px; width: auto; display: block; }
.bis-logo--lg { height: 132px; }
.logo-light { color: #fff; }
.logo-dark  { color: var(--navy); }

/* ── Header / nav ─────────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(13,27,53,.96); backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.nav__row { display: flex; align-items: center; gap: 24px; height: 68px; }
.nav__brand { display: flex; align-items: center; gap: 12px; }
.nav__links { display: flex; align-items: center; gap: 22px; margin-left: auto; }
.nav__links a { color: rgba(255,255,255,.72); font-size: 14.5px; letter-spacing: .01em; }
.nav__links a:hover { color: #fff; text-decoration: none; }
.btn {
  display: inline-block; background: var(--gold); color: var(--navy);
  padding: 10px 20px; border-radius: 4px; font-weight: 700; font-size: 14px;
  letter-spacing: .02em; border: 1px solid var(--gold);
}
.btn:hover { background: #d8ba62; text-decoration: none; }
.btn--ghost { background: transparent; color: var(--navy); border-color: var(--border); }
.dropdown { position: relative; }
.dropdown > a::after { content: " ▾"; color: var(--gold-d); }
.dropdown__menu {
  position: absolute; top: 130%; left: 0; min-width: 230px;
  background: var(--paper); border: 1px solid var(--border); border-radius: 6px;
  box-shadow: 0 8px 24px rgba(13,27,53,.12); padding: 6px; display: none;
}
.dropdown:hover .dropdown__menu { display: block; }
.dropdown__menu a { display: block; padding: 9px 12px; border-radius: 4px; color: var(--navy); font-size: 14px; }
.dropdown__menu a:hover { background: var(--cream); text-decoration: none; }
.dropdown__menu .tag { float: right; font-size: 11px; color: var(--muted); }

/* ── Hero (full-bleed image with left overlay panel) ───────────────────────── */
.hero { position: relative; border-bottom: 3px solid var(--gold); line-height: 0; padding: 0; }
.hero__bg { display: block; width: 100%; height: auto; }
.hero__panel {
  position: absolute; top: 0; left: 0; bottom: 0; z-index: 2;
  display: flex; flex-direction: column; align-items: flex-start; justify-content: center;
  padding: 40px clamp(20px, 4vw, 48px);
  background: linear-gradient(90deg, rgba(10,23,48,.94) 0%, rgba(10,23,48,.72) 55%, transparent 100%);
  min-width: 340px; max-width: 460px;
}
.hero__logo { height: 180px; width: auto; }
.region-links { display: flex; flex-direction: column; gap: 10px; margin-top: 28px; width: 100%; }
.region-btn {
  display: block; padding: 15px 22px;
  font-size: 15px; font-weight: 700; font-family: var(--sans); letter-spacing: .02em;
  border-radius: 4px; text-decoration: none;
  transition: opacity .15s, transform .12s;
}
.region-btn:hover { text-decoration: none; opacity: .85; transform: translateX(4px); }
.region-btn--actif  { background: var(--gold); color: #fff; }
.region-btn--pilote { background: rgba(201,168,76,.5); color: #fff; }
.region-btn--bientot { background: rgba(201,168,76,.18); color: rgba(255,255,255,.55); pointer-events: none; cursor: default; }
@media (max-width: 680px) {
  .hero__panel { min-width: 0; width: 85%; max-width: 100%; bottom: auto; padding: 20px; }
  .hero__logo { height: 100px; }
  .region-btn { font-size: 13px; padding: 12px 16px; }
}

/* ── Search zone (dark navy continuation below the hero image) ─────────────── */
.search-zone {
  background: linear-gradient(180deg, #0a1730 0%, var(--navy) 100%);
  color: #fff; padding: 36px 0 48px;
  border-bottom: 3px solid var(--gold);
}
.search-label { color: #c7d0e0; font-size: 15px; margin: 0 0 12px; }
.search-row { display: flex; gap: 10px; max-width: 580px; }
.search-input {
  flex: 1; padding: 11px 16px;
  border: 1px solid rgba(255,255,255,.2); background: rgba(255,255,255,.06);
  color: #fff; border-radius: 4px; font-size: 15px; font-family: var(--sans);
}
.search-input::placeholder { color: rgba(255,255,255,.4); }
.search-input:focus { outline: none; border-color: var(--gold); background: rgba(255,255,255,.09); }
.hero__cta { margin-top: 24px; display: flex; gap: 12px; flex-wrap: wrap; }

/* region chips */
.chips { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 34px; }
.chip {
  font-size: 13px; padding: 7px 14px; border-radius: 999px;
  border: 1px solid rgba(255,255,255,.22); color: #e8edf6; background: rgba(255,255,255,.04);
  display: inline-flex; align-items: center; gap: 8px;
}
.chip .dot { width: 7px; height: 7px; border-radius: 50%; display: inline-block; }
a.chip { transition: background .15s, border-color .15s; }
a.chip:hover { text-decoration: none; background: rgba(201,168,76,.18); border-color: rgba(201,168,76,.6); }
.chip--actif   { border-color: rgba(201,168,76,.5); color: #fff; background: rgba(201,168,76,.12); }
.chip--actif   .dot { background: var(--gold); }
.chip--pilote  .dot { background: #6fae7a; }
.chip--bientot { opacity: .7; }
.chip--bientot .dot { background: #8893a6; }

/* ── Sections ─────────────────────────────────────────────────────────────── */
section { padding: 64px 0; }
section.alt { background: var(--paper); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.kicker { color: var(--gold-d); font-size: 12.5px; letter-spacing: .18em; text-transform: uppercase; font-weight: 700; }
.section-head { max-width: 720px; }
.section-head h2 { font-size: clamp(24px, 3vw, 32px); margin: 10px 0 0; }
.section-head p { color: var(--muted); margin: 12px 0 0; font-size: 17px; }

/* proof strip */
.proof { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-top: 30px; }
.proof span { font-size: 14px; color: var(--muted); }
.proof b { color: var(--navy); font-family: var(--serif); }

/* ── Funnel motif (socle → univers → signaux) ─────────────────────────────── */
.funnel { display: grid; gap: 14px; max-width: 720px; margin: 34px auto 0; }
.layer {
  border: 1px solid var(--border); border-left: 4px solid var(--gold);
  background: var(--cream); padding: 16px 20px; border-radius: 6px;
}
.layer .l-k { font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--gold-d); font-weight: 700; }
.layer h3 { font-size: 18px; margin: 4px 0 4px; }
.layer p { margin: 0; color: var(--muted); font-size: 15px; }
.layer--socle  { margin: 0 40px; }
.layer--univ   { margin: 0 20px; }
.layer--signal { margin: 0; border-left-color: var(--navy); }

/* ── Cards ────────────────────────────────────────────────────────────────── */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 34px; }
.card { background: var(--paper); border: 1px solid var(--border); border-radius: 8px; padding: 22px; box-shadow: 0 1px 3px rgba(13,27,53,.04); }
.card h3 { font-size: 19px; margin: 6px 0 8px; }
.card p { color: var(--muted); font-size: 15px; margin: 0 0 14px; }
.card a { font-weight: 700; }

/* definitions */
.defs { display: grid; gap: 0; margin-top: 24px; border-top: 1px solid var(--border); }
.def { padding: 18px 0; border-bottom: 1px solid var(--border); display: grid; grid-template-columns: 220px 1fr; gap: 20px; }
.def dt { font-family: var(--serif); color: var(--navy); font-size: 18px; }
.def dd { margin: 0; color: var(--muted); }
.def .why { display: block; margin-top: 6px; font-size: 13.5px; color: var(--gold-d); }

/* products / agents */
.tier { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; padding: 3px 9px; border-radius: 999px; }
.tier--bedrock  { background: #eef1f7; color: var(--navy); }
.tier--universe { background: #f4eed9; color: var(--gold-d); }
.tier--signal   { background: var(--navy); color: #fff; }
.code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; background: var(--navy); color: #e8edf6; padding: 14px 16px; border-radius: 6px; overflow:auto; white-space: pre-wrap; }

/* ── Agent / MCP band (dark, echoes the hero — the BIS-vs-Corse differentiator) */
.band-dark {
  color: #fff; border-top: 3px solid var(--gold);
  background:
    radial-gradient(60% 100% at 50% 0%, rgba(201,168,76,.14), transparent 60%),
    linear-gradient(180deg, #0a1730 0%, var(--navy) 100%);
}
.band-dark h2 { color: #fff; }
.band-dark .section-head p { color: #c7d0e0; }
.band-dark .kicker { color: var(--gold); }
.status-badge {
  display: inline-flex; align-items: center; gap: 8px; font-size: 12.5px;
  letter-spacing: .06em; text-transform: uppercase; color: var(--gold);
  border: 1px solid rgba(201,168,76,.45); border-radius: 999px; padding: 6px 13px;
}
.status-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--gold); animation: pulse 2s infinite; }
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(201,168,76,.5); }
  70%  { box-shadow: 0 0 0 8px rgba(201,168,76,0); }
  100% { box-shadow: 0 0 0 0 rgba(201,168,76,0); }
}
.tools { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 26px; }
.tool { border: 1px solid rgba(255,255,255,.14); background: rgba(255,255,255,.03); border-radius: 8px; padding: 14px 16px; }
.tool code { color: var(--gold); font-family: ui-monospace, Menlo, monospace; font-size: 13.5px; }
.tool p { margin: 6px 0 0; color: #c7d0e0; font-size: 13.5px; }
.code--light { background: #0a1430; border: 1px solid rgba(255,255,255,.12); }
@media (max-width: 860px) { .tools { grid-template-columns: 1fr; } }

/* ── Email preview (#preview) ────────────────────────────────────────────── */
.preview-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.preview-text ul { list-style: none; padding: 0; margin: 16px 0 0; }
.preview-text li { padding: 7px 0; border-bottom: 1px solid var(--border); font-size: 15px; color: var(--muted); }
.preview-text li::before { content: "✓ "; color: var(--gold-d); font-weight: 700; }
.preview-text li:last-child { border-bottom: none; }
.email-mockup { border-radius: 10px; overflow: hidden; box-shadow: 0 20px 60px rgba(13,27,53,.18); border: 1px solid var(--border); }
.em-topbar { background: #1e2d45; padding: 10px 14px; display: flex; align-items: center; gap: 6px; }
.em-dot { width: 11px; height: 11px; border-radius: 50%; }
.em-stats { display: flex; background: #f5f6f8; border-top: 1px solid var(--border); }
.em-stat { flex: 1; text-align: center; padding: 12px 8px; border-right: 1px solid var(--border); }
.em-stat:last-child { border-right: none; }
.em-stat .n { font-family: var(--serif); font-size: 22px; font-weight: 700; color: var(--navy); }
.em-stat .l { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
.em-urgent { padding: 8px 16px 4px; font-size: 10px; font-weight: 800; color: #fff; background: #dc2626; letter-spacing: .5px; }
.em-row { padding: 12px 16px; border-bottom: 1px solid var(--border); font-size: 13px; }
.em-row .er-new { display: inline-block; background: #e85d26; color: #fff; font-size: 9px; font-weight: 800; letter-spacing: .5px; padding: 2px 6px; border-radius: 3px; margin-right: 6px; }
.em-row .er-title { color: var(--navy); font-weight: 600; }
.em-row .er-meta { color: var(--muted); font-size: 12px; margin-top: 2px; }
.em-row .er-deadline { float: right; font-size: 12px; font-weight: 700; color: #dc2626; }
@media (max-width: 860px) { .preview-wrap { grid-template-columns: 1fr; } }

/* ── Pricing (#pricing) ───────────────────────────────────────────────────── */
.pricing-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin: 34px auto 0; max-width: 760px; }
.pc { background: var(--paper); border: 1px solid var(--border); border-radius: 8px; padding: 28px; position: relative; }
.pc--featured { border-color: var(--gold); box-shadow: 0 4px 24px rgba(201,168,76,.15); }
.pc-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--gold); color: var(--navy); font-size: 11px; font-weight: 700; letter-spacing: .08em; padding: 4px 14px; border-radius: 999px; white-space: nowrap; }
.pc-name { font-family: var(--serif); font-size: 20px; color: var(--navy); margin-bottom: 6px; }
.pc-desc { color: var(--muted); font-size: 14px; margin-bottom: 18px; }
.pc-price { display: flex; align-items: baseline; gap: 4px; margin-bottom: 4px; }
.pc-price-cur { font-size: 22px; color: var(--navy); }
.pc-price-amt { font-family: var(--serif); font-size: 48px; color: var(--navy); line-height: 1; }
.pc-price-per { color: var(--muted); font-size: 14px; }
.pc-price-alt { font-size: 13px; color: var(--muted); margin-bottom: 18px; }
.pc-features { list-style: none; padding: 0; margin: 18px 0 22px; }
.pc-features li { padding: 7px 0; border-bottom: 1px solid var(--border); font-size: 14.5px; color: var(--ink); }
.pc-features li::before { content: "✓ "; color: var(--gold-d); font-weight: 700; }
.pc-features li:last-child { border-bottom: none; }
.pc-cta { display: block; text-align: center; background: var(--navy); color: #fff; padding: 13px 20px; border-radius: 4px; font-weight: 700; font-size: 14px; letter-spacing: .02em; }
.pc--featured .pc-cta { background: var(--gold); color: var(--navy); }
.pc-cta:hover { opacity: .88; text-decoration: none; }
.pc-note { font-size: 12px; color: var(--muted); text-align: center; margin-top: 10px; }
.pricing-note { background: var(--paper); border: 1px solid var(--border); border-radius: 8px; padding: 22px; margin: 20px auto 0; max-width: 760px; }
.pricing-note h4 { font-family: var(--serif); color: var(--navy); font-size: 17px; margin-bottom: 10px; }
.pricing-note p, .pricing-note li { color: var(--muted); font-size: 14px; margin-bottom: 6px; }
.pricing-note ul { padding-left: 18px; }
@media (max-width: 860px) { .pricing-grid { grid-template-columns: 1fr; max-width: 400px; } }

/* ── FAQ (#faq) ──────────────────────────────────────────────────────────── */
.faq-grid { margin-top: 34px; border-top: 1px solid var(--border); }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q { width: 100%; background: none; border: none; text-align: left; padding: 18px 0; display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-family: var(--sans); font-size: 16px; color: var(--navy); font-weight: 500; gap: 16px; }
.faq-q:hover { color: var(--gold-d); }
.faq-icon { flex-shrink: 0; font-size: 20px; color: var(--gold-d); transition: transform .2s; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-a { display: none; padding: 0 0 18px; color: var(--muted); font-size: 15px; line-height: 1.65; max-width: 700px; }
.faq-item.open .faq-a { display: block; }

/* ── Signup form (#signup) ────────────────────────────────────────────────── */
.signup-wrap { max-width: 620px; margin: 0 auto; text-align: center; }
.signup-form { text-align: left; }
.signup-form { margin-top: 28px; display: grid; gap: 14px; }
.sf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.sf-label { display: block; font-size: 13px; font-weight: 600; color: var(--navy); margin-bottom: 5px; }
.sf-input, .sf-select, .sf-textarea { width: 100%; padding: 11px 14px; border: 1px solid var(--border); border-radius: 4px; font-family: var(--sans); font-size: 15px; color: var(--ink); background: var(--paper); }
.sf-input:focus, .sf-select:focus, .sf-textarea:focus { outline: none; border-color: var(--gold); }
.sf-textarea { resize: vertical; min-height: 90px; }
.sf-submit { background: var(--gold); color: var(--navy); font-weight: 700; font-size: 15px; padding: 13px 28px; border: none; border-radius: 4px; cursor: pointer; font-family: var(--sans); letter-spacing: .02em; }
.sf-submit:hover { background: #d8ba62; }
.sf-note { font-size: 13px; color: var(--muted); margin-top: 8px; }
@media (max-width: 580px) { .sf-row { grid-template-columns: 1fr; } }

/* ── Source cards (#sources) ──────────────────────────────────────────────── */
.sc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 34px; }
.sc-card {
  background: var(--paper); border: 1px solid var(--border);
  border-top: 3px solid var(--gold); border-radius: 6px; padding: 22px;
  box-shadow: 0 1px 3px rgba(13,27,53,.04);
}
.sc-icon { font-size: 26px; margin-bottom: 10px; }
.sc-title { font-size: 18px; margin: 0 0 8px; }
.sc-desc { color: var(--muted); font-size: 14.5px; margin: 0 0 14px; line-height: 1.55; }
.sc-badge {
  font-size: 11px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--gold-d); border: 1px solid var(--border); border-radius: 999px;
  padding: 3px 10px; display: inline-block;
}
@media (max-width: 860px) { .sc-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .sc-grid { grid-template-columns: 1fr; } }

/* ── Audience cards (#pour-qui) ───────────────────────────────────────────── */
.audience-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 34px; }
.audience-card {
  background: var(--paper); border: 1px solid var(--border); border-radius: 8px;
  padding: 24px 20px; box-shadow: 0 1px 3px rgba(13,27,53,.04);
}
.audience-icon { font-size: 28px; margin-bottom: 12px; }
.audience-title { font-family: var(--serif); color: var(--navy); font-size: 18px; margin-bottom: 8px; }
.audience-desc { color: var(--muted); font-size: 14.5px; line-height: 1.55; margin: 0; }
@media (max-width: 860px) { .audience-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .audience-grid { grid-template-columns: 1fr; } }

/* ── Footer ───────────────────────────────────────────────────────────────── */
.footer { background: var(--navy); color: #c7d0e0; padding: 48px 0 30px; border-top: 3px solid var(--gold); }
.footer a { color: #e8edf6; }
.footer__grid { display: flex; flex-wrap: wrap; gap: 40px; justify-content: space-between; }
.footer h4 { color: #fff; font-family: var(--sans); font-size: 13px; letter-spacing: .1em; text-transform: uppercase; margin: 0 0 10px; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin: 6px 0; font-size: 14px; }
.footer__legal { margin-top: 34px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.12); font-size: 12.5px; color: #8893a6; }

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 860px) {
  .nav__links { display: none; }
  .cards { grid-template-columns: 1fr; }
  .layer--socle, .layer--univ { margin: 0; }
  .def { grid-template-columns: 1fr; gap: 6px; }
}