/* ---- Variables ---- */
:root {
  --color-bg: #f8f7f4;
  --color-bg-alt: #ffffff;
  --color-text: #1c2329;
  --color-muted: #5c6770;
  --color-accent: #e85d26;
  --color-accent-dark: #c94a18;
  --color-accent-soft: #fff4ee;
  --color-border: #e2e0da;
  --color-success: #1a7f4b;
  --color-error: #c0392b;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 8px 32px rgba(28, 35, 41, 0.08);
  --header-h: 72px;
  --font: "DM Sans", system-ui, -apple-system, sans-serif;
  --max: 1080px;
  --narrow: 560px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--color-accent); }
a:hover { color: var(--color-accent-dark); }

.container {
  width: min(100% - 40px, var(--max));
  margin-inline: auto;
}

.container--narrow {
  width: min(100% - 40px, var(--narrow));
  margin-inline: auto;
}

/* ---- Header ---- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  width: min(100% - 32px, var(--max));
  margin-inline: auto;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.header__logo img {
  height: 40px;
  width: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav__link {
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  border-radius: 999px;
  transition: background 0.2s, color 0.2s;
}

.nav__link:hover,
.nav__link.is-active {
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border: none;
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---- Hero ---- */
.hero {
  line-height: 0;
  background: var(--color-text);
}

.hero__img {
  width: 100%;
  height: auto;
}

/* ---- Sections ---- */
.section {
  padding: 72px 0;
}

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

.section__head {
  margin-bottom: 36px;
  max-width: 640px;
}

.section__tag {
  display: inline-block;
  margin-bottom: 10px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-soft);
  border-radius: 999px;
}

.section__title {
  margin: 0 0 12px;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section__lead {
  margin: 0;
  font-size: 1.05rem;
  color: var(--color-muted);
}

/* ---- Card / Form ---- */
.card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
}

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

.form__row {
  display: grid;
  gap: 20px;
  margin-bottom: 20px;
}

.form__row--2 {
  grid-template-columns: 1fr 1fr;
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form__group label,
.form__fieldset legend {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

.req { color: var(--color-accent); }

.form__group input,
.form__group textarea {
  width: 100%;
  padding: 12px 14px;
  font: inherit;
  color: var(--color-text);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form__group input:focus,
.form__group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(232, 93, 38, 0.15);
}

.form__group input:invalid:not(:placeholder-shown),
.form__group textarea:invalid:not(:placeholder-shown) {
  border-color: var(--color-error);
}

.form__fieldset {
  margin: 0 0 20px;
  padding: 0;
  border: none;
}

.form__radios {
  display: flex;
  gap: 20px;
  margin-top: 8px;
}

.form__radio {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 15px;
}

.form__radio input {
  width: 18px;
  height: 18px;
  accent-color: var(--color-accent);
}

.form__checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 16px;
  font-size: 14px;
  color: var(--color-muted);
  cursor: pointer;
}

.form__checkbox input {
  margin-top: 3px;
  width: 18px;
  height: 18px;
  accent-color: var(--color-accent);
  flex-shrink: 0;
}

.form__note {
  margin: 0 0 20px;
  font-size: 13px;
  color: var(--color-muted);
}

.form__legal {
  margin: 16px 0 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--color-muted);
}

.form__legal a {
  color: var(--color-muted);
  text-decoration: underline;
}

.form__legal a:hover {
  color: var(--color-accent);
}

/* ---- Section opt-ins partenaires ---- */
.form__section {
  margin: 24px 0 0;
  padding: 20px 20px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
}

.form__section-title {
  display: block;
  margin-bottom: 10px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.01em;
}

.form__section-intro {
  margin: 0 0 16px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--color-muted);
  font-style: italic;
}

.form__section .form__checkbox {
  margin-bottom: 14px;
}

.form__section .form__checkbox:last-of-type {
  margin-bottom: 0;
}

.form__section .form__checkbox strong {
  display: inline-block;
  margin-bottom: 2px;
  font-size: 13px;
  color: var(--color-text);
}

.form__section-note {
  margin: 14px 0 0;
  font-size: 12px;
  color: var(--color-muted);
  font-style: italic;
}

/* ---- h4 dans politique de confidentialité ---- */
.legal h4 {
  margin: 20px 0 8px;
  font-size: 0.95rem;
  color: var(--color-text);
  font-weight: 600;
}

.legal h4:first-of-type { margin-top: 12px; }

.form__feedback {
  min-height: 0;
  margin-bottom: 16px;
  font-size: 14px;
  font-weight: 500;
}

.form__feedback:not(:empty) {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
}

.form__feedback.is-success {
  color: var(--color-success);
  background: #eaf7f0;
  border: 1px solid #b8e6cc;
}

.form__feedback.is-error {
  color: var(--color-error);
  background: #fdf0ee;
  border: 1px solid #f5c4be;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 160px;
  padding: 14px 28px;
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  border: 2px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.15s;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn--primary {
  color: #fff;
  background: var(--color-accent);
}

.btn--primary:hover:not(:disabled) {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
}

.btn--outline {
  color: var(--color-accent);
  background: transparent;
  border-color: var(--color-accent);
}

.btn--outline:hover:not(:disabled) {
  background: var(--color-accent-soft);
}

/* ---- Legal ---- */
.legal {
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-muted);
}

.legal h3 {
  margin: 28px 0 10px;
  font-size: 1.05rem;
  color: var(--color-text);
}

.legal h3:first-of-type { margin-top: 0; }

.legal p { margin: 0 0 12px; }

.legal ul {
  margin: 0 0 12px;
  padding-left: 1.25rem;
}

.legal li { margin-bottom: 6px; }

/* ---- Footer ---- */
.footer {
  padding: 40px 0;
  background: var(--color-text);
  color: #aab3ba;
  text-align: center;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.footer__logo {

}

.footer p {
  margin: 0;
  font-size: 14px;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s, opacity 0.3s;
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav__link {
    padding: 14px 16px;
    border-radius: var(--radius-sm);
  }

  .form__row--2 {
    grid-template-columns: 1fr;
  }

  .card { padding: 24px 20px; }

  .section { padding: 56px 0; }
}