*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: "Poppins", system-ui, sans-serif;
  color: var(--gray-700);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.container { width: min(1160px, 92%); margin-inline: auto; }

.section { padding: 5rem 0; }

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--black);
  text-align: center;
  margin-bottom: 0.5rem;
}

.section-title::after {
  content: "";
  display: block;
  width: 48px;
  height: 4px;
  background: var(--red);
  margin: 0.75rem auto 0;
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  color: var(--gray-500);
  max-width: 560px;
  margin: 1.25rem auto 3rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
}

.btn--primary {
  background: var(--red);
  color: var(--white);
  border-color: var(--red);
}

.btn--primary:hover {
  background: var(--red-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(227, 6, 19, 0.35);
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn--outline:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.btn--light {
  background: var(--white);
  color: var(--red);
  border-color: var(--white);
}

.btn--light:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.btn--block { width: 100%; }

/* Liste à coches rouges (style Alikosarl) */
.check-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.check-list li {
  position: relative;
  padding-left: 1.7rem;
  font-size: 0.95rem;
  color: var(--gray-700);
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--red);
  font-weight: 800;
}

/* Animations reveal */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  background: var(--red);
  color: var(--white);
  border: none;
  border-radius: 8px;
  font-size: 1.25rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all var(--transition);
  z-index: 90;
  box-shadow: 0 4px 16px rgba(227, 6, 19, 0.4);
}

.scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover { background: var(--red-dark); }

/* ===== Modals ===== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 4rem 1rem 2rem;
  background: rgba(15, 15, 15, 0.6);
  overflow-y: auto;
}

.modal.is-open { display: flex; }

.modal__box {
  background: var(--white);
  border-radius: 14px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.3);
  width: 100%;
  max-width: 560px;
  border-top: 4px solid var(--red);
  animation: modal-in 0.22s ease;
}

@keyframes modal-in {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.modal__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.5rem;
  border-bottom: 1px solid var(--gray-100);
}

.modal__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--black);
}

.modal__close {
  background: var(--gray-50);
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  font-size: 1.1rem;
  line-height: 1;
  color: var(--gray-700);
  cursor: pointer;
}

.modal__close:hover { background: var(--red); color: var(--white); }

.modal__body { padding: 1.5rem; }

.flash-messages { margin-bottom: 1.5rem; }

.flash {
  padding: 1rem 1.25rem;
  border-radius: 8px;
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
}

.flash--success { background: #e8f5e9; color: #2e7d32; border-left: 4px solid #4caf50; }
.flash--error { background: #fdecea; color: #c62828; border-left: 4px solid var(--red); }
.flash--info { background: #e3f2fd; color: #1565c0; border-left: 4px solid #42a5f5; }

@media (max-width: 768px) {
  .section { padding: 3.5rem 0; }
}