*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #111827;
  background: #f3f4f6;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header */

.site-header {
  background: #111827;
  color: #f9fafb;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.8rem 0;
}

.logo {
  font-weight: 600;
}

.nav {
  display: flex;
  gap: 0.75rem;
  font-size: 0.9rem;
}

.nav a {
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
}

.nav a:hover {
  background: rgba(249, 250, 251, 0.08);
}

/* Hero */

.hero {
  background: linear-gradient(120deg, #2563eb, #4f46e5);
  color: #f9fafb;
  padding: 2.8rem 0;
}

.hero-inner {
  max-width: 650px;
}

.hero h1 {
  margin: 0 0 0.75rem 0;
  font-size: 2rem;
}

.hero p {
  margin: 0 0 1rem 0;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.45rem 1rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn.primary {
  background: #f97316;
  color: #111827;
  border-color: #f97316;
}

.btn.primary:hover {
  background: #ea580c;
}

.btn.outline {
  background: transparent;
  color: #f9fafb;
  border-color: #bfdbfe;
}

.btn.outline:hover {
  background: rgba(15, 23, 42, 0.45);
}

/* Sections */

.section {
  padding: 3rem 0;
}

.section-alt {
  background: #ffffff;
}

.section h2 {
  margin: 0 0 0.75rem 0;
}

.section-intro {
  max-width: 600px;
  font-size: 0.95rem;
  color: #4b5563;
}

/* Grid */

.grid-3 {
  margin-top: 1.5rem;
  display: grid;
  gap: 1.2rem;
}

@media (min-width: 800px) {
  .grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* Cards */

.card {
  background: #ffffff;
  border-radius: 0.9rem;
  padding: 1rem;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.08);
  border: 1px solid #e5e7eb;
}

/* Événements */

.events {
  margin-top: 1.5rem;
  display: grid;
  gap: 1rem;
}

.event {
  background: #ffffff;
  border-radius: 0.8rem;
  padding: 0.9rem 1rem;
  border: 1px solid #e5e7eb;
}

.event-meta {
  font-size: 0.85rem;
  color: #6b7280;
}

/* Contact / équipe */

.contact {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 800px) {
  .contact {
    grid-template-columns: 1.1fr 1fr;
  }
}

.form {
  display: grid;
  gap: 0.9rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

label {
  font-size: 0.85rem;
  font-weight: 500;
}

input,
textarea {
  border-radius: 0.5rem;
  border: 1px solid #d1d5db;
  padding: 0.5rem 0.6rem;
  font-size: 0.9rem;
  font-family: inherit;
}

textarea {
  min-height: 100px;
}

/* Footer */

.site-footer {
  background: #111827;
  color: #9ca3af;
  padding: 1rem 0;
  font-size: 0.85rem;
  text-align: center;
}

.muted {
  font-size: 0.85rem;
  color: #6b7280;
}

/* Responsive header */

@media (max-width: 720px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .nav {
    flex-wrap: wrap;
  }
}