body {
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
  padding: 0;
  background: #0b0f14; /* dark */
  color: #e5e7eb;
  line-height: 1.6;

  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.page {
  background: #0b0f14;
  flex: 1;
}

html, body {
  height: 100vh;
}

header {
  background: #0f172a;
  border-bottom: 1px solid #1f2937;
}

nav {
  max-width: 900px;
  margin: 0 auto;
  padding: 12px 40px;
  display: flex;
  align-items: center;
  gap: 28px;
}

nav a {
  margin-right: 24px;
  text-decoration: none;
  color: #ffffff;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.2px;
}

nav a:first-child {
  font-weight: 700;
}

nav a:hover {
  text-decoration: underline;
}

nav .brand img {
  height: 36px;
  display: block;
}

main {
  max-width: 900px;
  margin: 40px auto 0 auto;
  padding: 40px;
  background: #111827; /* dark */
  border-radius: 12px;
  flex: 1;
}

h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

h2 {
  margin-top: 2.5rem;
  font-size: 1.4rem;
}

ul {
  padding-left: 20px;
}

footer {
  padding: 12px 0;
  text-align: center;
  font-size: 0.8rem;
  color: #6b7280;
  border-top: 1px solid #1f2937;
  background: #0f172a;
}

footer p {
  margin: 4px 0;
}

footer a {
  color: #666;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* Titres */
h1, h2, h3 {
  color: #ffffff;
}

/* Paragraphes */
p {
  color: #9ca3af;
}

/* Liens */
a {
  color: #22c55e;
}

/* Header */
header {
  background-color: #0f172a;
  border-bottom: 1px solid #1f2937;
}

/* Sections */
section {
  border-color: #1f2937;
}

/* Footer */
footer {
  background-color: #0f172a;
  color: #6b7280;
}