/* Lotus Conseil — feuille de style */

:root {
  --ink: #1B2735;
  --slate: #2E4057;
  --steel: #5A7690;
  --bg: #F5F6F8;
  --bg-alt: #ECEFF3;
  --line: #D7DCE2;
  --muted: #6B7784;
  --accent: #A9822C;
  --accent-dark: #8A6A22;

  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "IBM Plex Sans", "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
}

h1, h2, h3 {
  font-family: var(--serif);
  color: var(--ink);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 0.5em;
}

h1 { font-size: 2.6rem; }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.2rem; }

p { margin: 0 0 1em; max-width: 60ch; color: var(--ink); }

p.lead {
  font-size: 1.2rem;
  color: var(--slate);
  max-width: 56ch;
}

a { color: var(--steel); text-decoration-color: var(--line); }
a:hover { color: var(--accent-dark); }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 32px;
}

/* Header */

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 22px;
  padding-bottom: 22px;
}

.brand {
  font-family: var(--serif);
  font-size: 1.35rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.01em;
}

nav.main-nav ul {
  list-style: none;
  display: flex;
  gap: 32px;
  margin: 0;
  padding: 0;
}

nav.main-nav a {
  color: var(--slate);
  text-decoration: none;
  font-size: 0.98rem;
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
}

nav.main-nav a:hover,
nav.main-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

.nav-toggle { display: none; }

/* Hero */

.hero {
  padding: 88px 0 72px;
}

.hero h1 { max-width: 16ch; margin-bottom: 0.35em; }

.hero .lead { margin-bottom: 2em; }

.button {
  display: inline-block;
  background: var(--slate);
  color: #fff;
  font-family: var(--sans);
  font-size: 1rem;
  text-decoration: none;
  padding: 13px 28px;
  border: none;
  cursor: pointer;
}

.button:hover { background: var(--ink); color: #fff; }

.button.secondary {
  background: transparent;
  color: var(--slate);
  border: 1px solid var(--slate);
}

.button.secondary:hover {
  background: var(--slate);
  color: #fff;
}

/* Sections */

section { padding: 56px 0; }

section.alt { background: var(--bg-alt); }

.section-head { margin-bottom: 40px; }

.rule {
  border: none;
  border-top: 1px solid var(--line);
  margin: 0;
}

/* "Pour qui" columns */

.audience-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.audience-grid div {
  padding: 4px 32px;
  border-left: 1px solid var(--line);
}

.audience-grid div:first-child { border-left: none; padding-left: 0; }

.audience-grid h3 { font-family: var(--sans); font-weight: 600; font-size: 1.05rem; }
.audience-grid p { font-size: 0.98rem; color: var(--muted); margin-bottom: 0; }

/* Services list */

.service {
  padding: 40px 0;
  border-top: 1px solid var(--line);
}

.service:last-child { border-bottom: 1px solid var(--line); }

.service h2 { margin-bottom: 0.4em; }
.service p { color: var(--muted); }

/* Contact */

.contact-block {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 56px;
  align-items: start;
}

.contact-card {
  border: 1px solid var(--line);
  background: #fff;
  padding: 32px;
}

.contact-card h3 { font-size: 1rem; text-transform: none; color: var(--slate); }
.contact-card .email {
  display: block;
  font-family: var(--serif);
  font-size: 1.25rem;
  margin: 6px 0 22px;
}

/* Footer */

footer.site-footer {
  border-top: 1px solid var(--line);
  padding: 32px 0;
  margin-top: 32px;
}

footer.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

footer.site-footer p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--muted);
}

/* Responsive */

@media (max-width: 760px) {
  h1 { font-size: 2rem; }

  .site-header .wrap { flex-wrap: wrap; }

  nav.main-nav ul { gap: 20px; flex-wrap: wrap; }

  .audience-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .audience-grid div {
    border-left: none;
    padding: 0;
    border-top: 1px solid var(--line);
    padding-top: 20px;
  }
  .audience-grid div:first-child { border-top: none; padding-top: 0; }

  .contact-block {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}