/* Pages secondaires : études de cas (projets/) et questionnaire de témoignage. */
:root {
  --ink: #050505;
  --paper: #f5f5f2;
  --muted: #8a8a8a;
  --muted-on-light: #66665f;
  --red: #5d1212;
  --red-soft: #d98b86;
  --line: rgba(5, 5, 5, 0.18);
  --white-line: rgba(245, 245, 242, 0.2);
  --display: "Space Grotesk", "Poppins", sans-serif;
  --body: "Poppins", sans-serif;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.6 var(--body);
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
}
img {
  max-width: 100%;
  display: block;
}
:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 3px;
}
.dark :focus-visible {
  outline-color: var(--red-soft);
}
.skip-link {
  position: absolute;
  left: 1rem;
  top: 1rem;
  transform: translateY(-150%);
  background: var(--paper);
  color: var(--ink);
  padding: 0.7rem 1rem;
  z-index: 30;
}
.skip-link:focus {
  transform: none;
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

/* En-tête */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 76px;
  padding: 0 6vw;
  background: var(--ink);
  color: var(--paper);
}
.brand {
  font: 600 1rem var(--display);
  letter-spacing: 0.08em;
  text-decoration: none;
}
.brand span {
  font-weight: 400;
  color: var(--muted);
}
.back-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font: 500 0.72rem var(--display);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: #d7d7d1;
}
.back-link:hover {
  color: var(--red-soft);
}

/* Ouverture de l'étude de cas */
.case-hero {
  background: var(--ink);
  color: var(--paper);
  padding: 5rem 6vw 0;
}
.case-kicker {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 2rem;
  margin: 0;
  color: #b8b9b3;
  font: 500 0.72rem var(--display);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.case-kicker strong {
  color: var(--red-soft);
  font-weight: 500;
}
.case-hero h1 {
  max-width: 1000px;
  margin: 1.5rem 0;
  font: 600 clamp(2.6rem, 7vw, 6.5rem) / 0.94 var(--display);
  letter-spacing: -0.06em;
}
.case-lead {
  max-width: 640px;
  margin: 0;
  color: #c9c9c3;
  font-size: 1.08rem;
}
.case-meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin: 3.5rem 0 0;
  background: var(--white-line);
  border: 1px solid var(--white-line);
}
.case-meta div {
  padding: 1.1rem;
  background: var(--ink);
}
.case-meta dt {
  margin-bottom: 0.4rem;
  color: #9b9c96;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.case-meta dd {
  margin: 0;
  font: 500 0.98rem var(--display);
}
.case-figure {
  margin: 3.5rem 0 0;
  transform: translateY(3rem);
}
.case-figure img {
  width: 100%;
  height: auto;
  border: 1px solid var(--white-line);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35);
}

/* Corps */
.case-body {
  max-width: 1040px;
  margin: 0 auto;
  padding: 8rem 6vw 5rem;
}
.case-section {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 3rem;
  padding: 3rem 0;
  border-top: 1px solid var(--line);
}
.case-section h2 {
  margin: 0;
  font: 500 clamp(1.5rem, 2.6vw, 2.2rem) / 1.05 var(--display);
  letter-spacing: -0.04em;
}
.case-section h2 span {
  display: block;
  margin-bottom: 0.8rem;
  color: var(--muted-on-light);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
}
.case-section p {
  margin: 0 0 1rem;
  color: #444;
}
.case-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.case-list li {
  position: relative;
  padding: 0.85rem 0 0.85rem 1.8rem;
  border-bottom: 1px solid var(--line);
  color: #333;
}
.case-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.45rem;
  width: 0.9rem;
  height: 1px;
  background: var(--red);
}
.case-list strong {
  color: var(--ink);
  font-weight: 600;
}
.case-note {
  padding: 1rem 1.2rem;
  border-left: 2px solid var(--red);
  background: #ecece7;
  color: #444;
  font-size: 0.92rem;
}

/* Boutons */
.button-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
  margin-top: 1.5rem;
}
.button {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 48px;
  padding: 0 1.3rem;
  border: 1px solid var(--red);
  background: var(--red);
  color: var(--paper);
  font: 500 0.74rem var(--display);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.25s, color 0.25s, transform 0.25s;
}
.button:hover {
  background: var(--ink);
  border-color: var(--ink);
  transform: translateY(-2px);
}
.button-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.button-ghost:hover {
  color: var(--paper);
}

/* Projet suivant + appel à l'action */
.case-next {
  display: block;
  padding: 4rem 6vw;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
}
.case-next span {
  color: #9b9c96;
  font: 500 0.72rem var(--display);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.case-next strong {
  display: block;
  margin-top: 1rem;
  font: 600 clamp(2.2rem, 6vw, 5rem) / 0.95 var(--display);
  letter-spacing: -0.06em;
  transition: color 0.25s;
}
.case-next:hover strong {
  color: var(--red-soft);
}
.case-cta {
  padding: 5rem 6vw;
  text-align: center;
}
.case-cta h2 {
  margin: 0 auto 1rem;
  max-width: 760px;
  font: 600 clamp(2rem, 4.5vw, 3.8rem) / 1 var(--display);
  letter-spacing: -0.05em;
}
.case-cta h2 em {
  color: var(--red);
  font-style: normal;
}
.case-cta p {
  max-width: 520px;
  margin: 0 auto;
  color: #555;
}
.case-cta .button-row {
  justify-content: center;
}

/* Pied de page */
.page-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem 6vw;
  background: var(--ink);
  color: var(--muted);
  font-size: 0.8rem;
  border-top: 1px solid var(--white-line);
}
.page-footer a {
  text-decoration: none;
}
.page-footer a:hover {
  color: var(--paper);
}
.page-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

/* Questionnaire de témoignage */
.form-page {
  max-width: 760px;
  margin: 0 auto;
  padding: 4rem 6vw 5rem;
}
.form-intro .case-kicker {
  color: var(--muted-on-light);
}
.form-intro .case-kicker strong {
  color: var(--red);
}
.field-optional {
  color: var(--muted-on-light);
  font-weight: 400;
}
.form-intro h1 {
  margin: 1rem 0;
  font: 600 clamp(2.2rem, 5.5vw, 4.2rem) / 0.98 var(--display);
  letter-spacing: -0.055em;
}
.form-intro h1 em {
  color: var(--red);
  font-style: normal;
}
.form-intro p {
  color: #444;
}
.survey {
  display: grid;
  gap: 1.6rem;
  margin-top: 2.5rem;
  padding: clamp(1.25rem, 4vw, 2.5rem);
  background: #fff;
  box-shadow: 0 18px 45px rgba(5, 5, 5, 0.1);
}
.survey fieldset {
  margin: 0;
  padding: 0;
  border: 0;
  display: grid;
  gap: 1.2rem;
}
.survey legend {
  margin-bottom: 1rem;
  padding: 0;
  color: var(--red);
  font: 500 0.75rem var(--display);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.survey-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}
.field {
  display: grid;
  gap: 0.4rem;
}
.field > label,
.field-label {
  color: #333;
  font-size: 0.9rem;
  font-weight: 500;
}
.field-hint {
  margin: 0;
  color: var(--muted-on-light);
  font-size: 0.8rem;
}
.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field input[type="url"],
.field select,
.field textarea {
  width: 100%;
  min-height: 46px;
  padding: 0.65rem 0.8rem;
  border: 1px solid rgba(5, 5, 5, 0.28);
  background: #fff;
  color: var(--ink);
  font: 400 1rem var(--body);
}
.field textarea {
  min-height: 140px;
  resize: vertical;
}
.field input:focus-visible,
.field select:focus-visible,
.field textarea:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}
.field [aria-invalid="true"] {
  border-color: #a01f1f;
}
.field-error {
  min-height: 1.1em;
  margin: 0;
  color: #a01f1f;
  font-size: 0.8rem;
}
.rating {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.rating label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 52px;
  min-height: 44px;
  padding: 0 0.8rem;
  border: 1px solid rgba(5, 5, 5, 0.28);
  cursor: pointer;
  font-weight: 500;
}
.rating input {
  position: absolute;
  opacity: 0;
}
.rating input:checked + label {
  background: var(--red);
  border-color: var(--red);
  color: var(--paper);
}
.rating input:focus-visible + label {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}
.check {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 0.7rem;
  align-items: start;
  font-size: 0.92rem;
  color: #333;
  cursor: pointer;
}
.check input {
  width: 20px;
  height: 20px;
  margin: 0.15rem 0 0;
  accent-color: var(--red);
}
.photo-box {
  display: grid;
  gap: 0.8rem;
  padding: 1.2rem;
  border: 1px dashed rgba(5, 5, 5, 0.3);
  background: #fafaf7;
}
.photo-box p {
  margin: 0;
  color: #444;
  font-size: 0.92rem;
}
.button-whatsapp {
  background: #1f8f4e;
  border-color: #1f8f4e;
  justify-self: start;
}
.button-whatsapp:hover {
  background: #18753f;
  border-color: #18753f;
}
.form-status {
  min-height: 1.4em;
  margin: 0;
  color: var(--red);
  font-weight: 500;
}
.form-success {
  padding: 2rem;
  background: #fff;
  box-shadow: 0 18px 45px rgba(5, 5, 5, 0.1);
}
.form-success h2 {
  margin: 0 0 0.8rem;
  font: 600 2rem / 1 var(--display);
  letter-spacing: -0.04em;
}

@media (max-width: 760px) {
  .case-hero {
    padding-top: 3.5rem;
  }
  .case-meta {
    grid-template-columns: 1fr 1fr;
  }
  .case-figure {
    transform: translateY(2rem);
  }
  .case-body {
    padding-top: 5rem;
  }
  .case-section {
    grid-template-columns: 1fr;
    gap: 1.2rem;
    padding: 2.4rem 0;
  }
  .survey-row {
    grid-template-columns: 1fr;
  }
  .button-row .button {
    width: 100%;
    justify-content: center;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    transition-duration: 0.01ms !important;
  }
}