/* ═══════════════════════════════════════════════════════════
   SOLIDEA — Bureau d'Études Structure
   style.css — Site One-Page
   ═══════════════════════════════════════════════════════════ */

/* ─── Variables ─── */
:root {
  --bleu: #003764;
  --bleu-deep: #001E3A;
  --bleu-light: #0A4A7A;
  --or: #D4AF37;
  --or-light: #E8CC6E;
  --or-dark: #B8941F;
  --gris: #8C9196;
  --gris-clair: #F8F9FA;
  --gris-moyen: #E2E4E6;
  --blanc: #FFFFFF;
  --noir: #1A1A1A;
  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Source Serif 4', Georgia, serif;
  --nav-h: 70px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  color: var(--noir);
  background: var(--blanc);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

/* ─── Utility ─── */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 2.5rem;
}

.gold-rule {
  width: 60px;
  height: 2px;
  background: var(--or);
  border: none;
  margin: 1.5rem 0;
}

.gold-rule--center {
  margin-left: auto;
  margin-right: auto;
}

/* ═══════════════════════════════════════════════════════════
   REVEAL ANIMATIONS (Scroll + Load)
   ═══════════════════════════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .7s cubic-bezier(.22,1,.36,1), transform .7s cubic-bezier(.22,1,.36,1);
}

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

/* ═══════════════════════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════════════════════ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(0, 30, 58, .92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(212, 175, 55, .08);
  transition: background .3s ease, box-shadow .3s ease;
}

.nav--scrolled {
  background: rgba(0, 30, 58, .98);
  box-shadow: 0 2px 24px rgba(0, 0, 0, .25);
}

.nav__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.nav__logo {
  height: 36px;
  width: auto;
  object-fit: contain;
  transition: opacity .3s;
}

.nav__logo:hover { opacity: .85; }

.nav__list {
  display: flex;
  align-items: center;
  gap: .2rem;
  list-style: none;
}

.nav__link {
  font-family: var(--font-display);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .72);
  padding: .55rem 1rem;
  position: relative;
  transition: color .3s;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 1rem;
  right: 1rem;
  height: 2px;
  background: var(--or);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .35s cubic-bezier(.22,1,.36,1);
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--blanc);
}

.nav__link:hover::after,
.nav__link.is-active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav__link--cta {
  color: var(--bleu-deep) !important;
  background: var(--or);
  padding: .55rem 1.3rem;
  margin-left: .6rem;
  transition: background .3s, transform .2s;
}

.nav__link--cta:hover {
  background: var(--or-light);
  transform: translateY(-1px);
}

.nav__link--cta::after { display: none; }

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.nav__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--blanc);
  border-radius: 1px;
  transition: transform .35s ease, opacity .25s ease;
  transform-origin: center;
}

.nav__hamburger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__hamburger.is-open span:nth-child(2) {
  opacity: 0;
}
.nav__hamburger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ═══════════════════════════════════════════════════════════
   SECTION 1 — COVER
   ═══════════════════════════════════════════════════════════ */
.cover {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bleu-deep);
  overflow: hidden;
  padding-top: var(--nav-h);
}

.cover::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.015) 1px, transparent 1px);
  background-size: 100px 100px, 100px 100px, 20px 20px, 20px 20px;
  animation: gridPulse 8s ease-in-out infinite alternate;
}

@keyframes gridPulse {
  0% { opacity: .4; }
  100% { opacity: .85; }
}

.cover::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 1px;
  height: 200%;
  background: linear-gradient(to bottom, transparent, rgba(212,175,55,.12), transparent);
  transform: rotate(25deg);
}

.cover__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 3rem 2rem 5rem;
}

.cover__brand { margin-bottom: 3rem; }

.cover__logo-img {
  max-width: 340px;
  margin: 0 auto;
}

.cover__headline { margin-bottom: 2.2rem; }

.cover__headline-line {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2.3rem;
  line-height: 1.35;
  letter-spacing: .04em;
  color: var(--blanc);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp .8s ease forwards;
}

.cover__headline-line:nth-child(1) { animation-delay: .3s; }
.cover__headline-line:nth-child(2) { animation-delay: .5s; }
.cover__headline-line--gold {
  color: var(--or);
  animation-delay: .7s !important;
}

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

.cover__tagline {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 400;
  font-style: italic;
  color: var(--gris);
  max-width: 560px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
}

.cover__cta {
  display: inline-block;
  font-family: var(--font-display);
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--bleu-deep);
  background: var(--or);
  padding: .9rem 2.4rem;
  transition: background .3s, transform .2s, box-shadow .3s;
}

.cover__cta:hover {
  background: var(--or-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(212,175,55,.25);
}

.cover__bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 3rem;
  border-top: 1px solid rgba(212,175,55,.12);
}

.cover__bottom-text {
  font-family: var(--font-display);
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--gris);
  text-transform: uppercase;
}

.cover__bottom-url {
  font-family: var(--font-display);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--or);
}

/* ═══════════════════════════════════════════════════════════
   SECTION 2 — ENJEUX
   ═══════════════════════════════════════════════════════════ */
.enjeux {
  padding: 6rem 0;
  background: var(--blanc);
  position: relative;
}

.enjeux::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--bleu), var(--or), var(--bleu));
}

.enjeux__header { text-align: center; margin-bottom: 3.5rem; }

.enjeux__overtitle {
  font-family: var(--font-display);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--or);
  margin-bottom: .8rem;
}

.enjeux__title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--bleu);
  line-height: 1.35;
}

.enjeux__intro {
  max-width: 780px;
  margin: 0 auto 3rem;
  font-size: 1.05rem;
  color: #444;
  text-align: center;
  line-height: 1.85;
}

/* Audience Cards */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3.5rem;
}

.audience-card {
  border: 1px solid var(--gris-moyen);
  border-top: 3px solid var(--or);
  padding: 2rem 1.6rem;
  background: var(--blanc);
  transition: transform .35s ease, box-shadow .35s ease;
}

.audience-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,55,100,.1);
}

.audience-card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bleu);
  border-radius: 2px;
}

.audience-card__icon svg {
  width: 24px;
  height: 24px;
  fill: var(--or);
}

.audience-card__label {
  font-family: var(--font-display);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--or);
  margin-bottom: .5rem;
}

.audience-card__title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--bleu);
  margin-bottom: .75rem;
  line-height: 1.35;
}

.audience-card__text {
  font-size: .92rem;
  color: #555;
  line-height: 1.75;
}

/* Promise */
.promise {
  background: var(--bleu);
  padding: 2.8rem 3rem;
  position: relative;
  overflow: hidden;
}

.promise::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 200px;
  height: 200px;
  border: 1px solid rgba(212,175,55,.08);
  transform: rotate(45deg);
  pointer-events: none;
}

.promise__label {
  font-family: var(--font-display);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--or);
  margin-bottom: 1rem;
}

.promise__text {
  font-family: var(--font-body);
  font-size: 1.12rem;
  font-style: italic;
  color: rgba(255,255,255,.9);
  line-height: 1.85;
  max-width: 820px;
  position: relative;
  z-index: 1;
}

.promise__text strong {
  color: var(--or-light);
  font-style: normal;
  font-weight: 600;
}

/* ═══════════════════════════════════════════════════════════
   SECTION 3 — EXPERTISE
   ═══════════════════════════════════════════════════════════ */
.expertise {
  padding: 6rem 0;
  background: var(--gris-clair);
}

.expertise__header { text-align: center; margin-bottom: 3.5rem; }

.expertise__overtitle {
  font-family: var(--font-display);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--or);
  margin-bottom: .8rem;
}

.expertise__title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--bleu);
}

.expertise__subtitle {
  font-family: var(--font-body);
  font-style: italic;
  color: var(--gris);
  font-size: 1.05rem;
  margin-top: .6rem;
}

/* Service Blocks */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.service-block {
  background: var(--blanc);
  border: 1px solid var(--gris-moyen);
  border-right: none;
  display: flex;
  flex-direction: column;
  transition: box-shadow .35s ease;
}

.service-block:last-child { border-right: 1px solid var(--gris-moyen); }

.service-block:hover {
  box-shadow: 0 8px 32px rgba(0,55,100,.07);
  z-index: 1;
}

.service-block__header {
  background: var(--bleu);
  padding: 1.8rem 1.8rem 1.5rem;
  position: relative;
}

.service-block__header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 1.8rem;
  right: 1.8rem;
  height: 2px;
  background: var(--or);
}

.service-block__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(212,175,55,.4);
  margin-bottom: 1rem;
}

.service-block__icon svg {
  width: 22px;
  height: 22px;
  fill: var(--or);
}

.service-block__title {
  font-family: var(--font-display);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--blanc);
  line-height: 1.45;
}

.service-block__body {
  padding: 1.8rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.service-block__list {
  list-style: none;
  margin-bottom: 1.5rem;
  flex: 1;
}

.service-block__list li {
  position: relative;
  padding-left: 1.2rem;
  margin-bottom: .7rem;
  font-size: .88rem;
  color: #444;
  line-height: 1.65;
}

.service-block__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: .55rem;
  width: 6px;
  height: 6px;
  background: var(--or);
  clip-path: polygon(50% 0%, 100% 100%, 0% 100%);
}

.service-block__benefit {
  border-left: 3px solid var(--or);
  padding: .8rem 1rem;
  background: rgba(212,175,55,.04);
  margin-top: auto;
}

.service-block__benefit-label {
  font-family: var(--font-display);
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--or-dark);
  margin-bottom: .3rem;
}

.service-block__benefit-text {
  font-size: .85rem;
  font-style: italic;
  color: var(--bleu);
  line-height: 1.6;
}

/* ═══════════════════════════════════════════════════════════
   SECTION 4 — POURQUOI / ENGAGEMENTS
   ═══════════════════════════════════════════════════════════ */
.pourquoi {
  padding: 6rem 0;
  background: var(--blanc);
}

.pourquoi__header { text-align: center; margin-bottom: 3.5rem; }

.pourquoi__overtitle {
  font-family: var(--font-display);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--or);
  margin-bottom: .8rem;
}

.pourquoi__title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--bleu);
}

.arguments {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.argument {
  position: relative;
  padding: 2.2rem 1.8rem;
  border: 1px solid var(--gris-moyen);
  transition: transform .35s ease, box-shadow .35s ease;
}

.argument:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(0,55,100,.07);
}

.argument__number {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 800;
  color: rgba(0,55,100,.06);
  line-height: 1;
  position: absolute;
  top: 1rem;
  right: 1.2rem;
}

.argument__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--bleu);
  margin-bottom: 1.2rem;
}

.argument__icon svg {
  width: 22px;
  height: 22px;
  fill: var(--or);
}

.argument__title {
  font-family: var(--font-display);
  font-size: .95rem;
  font-weight: 700;
  color: var(--bleu);
  margin-bottom: .7rem;
  line-height: 1.4;
  padding-right: 2rem;
}

.argument__text {
  font-size: .9rem;
  color: #555;
  line-height: 1.75;
}

/* ═══════════════════════════════════════════════════════════
   SECTION 5 — CONTACT
   ═══════════════════════════════════════════════════════════ */
.contact {
  position: relative;
  background: var(--bleu-deep);
  overflow: hidden;
}

.contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(212,175,55,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212,175,55,.025) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.contact__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  max-width: 1200px;
  margin: 0 auto;
}

.contact__left {
  padding: 4.5rem 3.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid rgba(212,175,55,.1);
}

.contact__cta-label {
  font-family: var(--font-display);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .25em;
  text-transform: uppercase;
  color: var(--or);
  margin-bottom: 1rem;
}

.contact__cta-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--blanc);
  line-height: 1.35;
  margin-bottom: 1rem;
}

.contact__cta-text {
  font-family: var(--font-body);
  font-size: 1rem;
  font-style: italic;
  color: var(--gris);
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

.contact__details { margin-top: auto; }

.contact__brand {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: .15em;
  color: var(--or);
  margin-bottom: .2rem;
}

.contact__brand-sub {
  font-family: var(--font-display);
  font-size: .72rem;
  font-weight: 400;
  letter-spacing: .12em;
  color: var(--gris);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.contact__info { list-style: none; }

.contact__info li {
  display: flex;
  align-items: flex-start;
  gap: .7rem;
  margin-bottom: .8rem;
  font-family: var(--font-display);
  font-size: .85rem;
  color: rgba(255,255,255,.8);
  line-height: 1.5;
}

.contact__info li svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  fill: var(--or);
  margin-top: 1px;
}

.contact__info li a {
  color: var(--or);
  transition: color .3s;
}
.contact__info li a:hover { color: var(--or-light); }

.contact__info li strong {
  color: var(--blanc);
  font-weight: 600;
}

/* Form */
.contact__right {
  padding: 4.5rem 3.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.form__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--blanc);
  margin-bottom: .3rem;
}

.form__subtitle {
  font-family: var(--font-display);
  font-size: .78rem;
  color: var(--gris);
  margin-bottom: 2rem;
  letter-spacing: .04em;
}

.form__group { margin-bottom: 1.2rem; }

.form__label {
  display: block;
  font-family: var(--font-display);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255,255,255,.55);
  margin-bottom: .4rem;
}

.form__input {
  width: 100%;
  font-family: var(--font-display);
  font-size: .88rem;
  color: var(--blanc);
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  padding: .75rem 1rem;
  outline: none;
  transition: border-color .3s, background .3s;
}

.form__input::placeholder {
  color: rgba(255,255,255,.28);
  font-style: italic;
}

.form__input:focus {
  border-color: var(--or);
  background: rgba(255,255,255,.08);
}

.form__textarea {
  resize: vertical;
  min-height: 90px;
}

.form__submit {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--font-display);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--bleu-deep);
  background: var(--or);
  border: none;
  padding: .85rem 2rem;
  cursor: pointer;
  margin-top: .4rem;
  transition: background .3s, transform .2s, box-shadow .3s;
}

.form__submit:hover {
  background: var(--or-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(212,175,55,.3);
}

.form__submit:active { transform: translateY(0); }

.form__submit-arrow {
  font-size: 1.1rem;
  transition: transform .3s;
}

.form__submit:hover .form__submit-arrow {
  transform: translateX(3px);
}

.form__feedback {
  margin-top: 1rem;
  font-family: var(--font-display);
  font-size: .82rem;
  min-height: 1.5em;
}

.form__feedback--success { color: #6FCF97; }
.form__feedback--error { color: #EB5757; }

/* Honeypot — invisible to humans, traps bots */
.form__honeypot {
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

/* Feedback banners from PHP redirect */
.form__feedback--visible {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  padding: 1rem 1.2rem;
  margin-bottom: 1.5rem;
  font-family: var(--font-display);
  font-size: .85rem;
  line-height: 1.6;
  border-left: 3px solid;
  animation: feedbackIn .5s ease forwards;
}

.form__feedback--visible.form__feedback--success {
  background: rgba(111,207,151,.08);
  border-color: #6FCF97;
  color: #6FCF97;
}

.form__feedback--visible.form__feedback--error {
  background: rgba(235,87,87,.08);
  border-color: #EB5757;
  color: #EB5757;
}

.form__feedback--visible.form__feedback--cooldown {
  background: rgba(212,175,55,.08);
  border-color: var(--or);
  color: var(--or);
}

.form__feedback-icon {
  flex-shrink: 0;
  margin-top: 1px;
}

@keyframes feedbackIn {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ═══════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════ */
.footer {
  background: var(--noir);
  padding: 1.2rem 3rem;
}

.footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem;
}

.footer__text {
  font-family: var(--font-display);
  font-size: .65rem;
  letter-spacing: .12em;
  color: var(--gris);
  text-transform: uppercase;
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .audience-grid { gap: 1rem; }
  .audience-card { padding: 1.5rem 1.2rem; }
  .service-block__body { padding: 1.4rem; }
}

@media (max-width: 900px) {
  :root { --nav-h: 60px; }

  /* Nav mobile */
  .nav__hamburger { display: flex; }

  .nav__menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    height: 100dvh;
    background: var(--bleu-deep);
    border-left: 1px solid rgba(212,175,55,.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateX(100%);
    transition: transform .4s cubic-bezier(.22,1,.36,1);
    z-index: 999;
  }

  .nav__menu.is-open { transform: translateX(0); }

  .nav__list {
    flex-direction: column;
    gap: .8rem;
    align-items: center;
  }

  .nav__link {
    font-size: .9rem;
    padding: .6rem 1.5rem;
  }

  .nav__link--cta { margin-left: 0; margin-top: .5rem; }

  /* Mobile overlay */
  .nav__overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.5);
    z-index: 998;
    opacity: 0;
    pointer-events: none;
    transition: opacity .35s;
  }

  .nav__overlay.is-visible {
    opacity: 1;
    pointer-events: auto;
  }

  /* Grids */
  .audience-grid,
  .services-grid,
  .arguments {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }

  .service-block {
    border-right: 1px solid var(--gris-moyen);
  }

  .contact__inner { grid-template-columns: 1fr; }

  .contact__left {
    border-right: none;
    border-bottom: 1px solid rgba(212,175,55,.1);
    padding: 3rem 2rem;
  }

  .contact__right { padding: 3rem 2rem; }

  /* Cover */
  .cover__headline-line { font-size: 1.45rem; }
  .cover__logo-img { max-width: 240px; }
  .cover__content { padding: 2rem 1.2rem 4rem; }
  .cover__bottom { padding: .8rem 1.5rem; }

  /* Titles */
  .enjeux__title,
  .expertise__title,
  .pourquoi__title { font-size: 1.5rem; }

  .container { padding: 0 1.5rem; }

  .footer__inner { justify-content: center; text-align: center; }
}

@media (max-width: 480px) {
  .cover__headline-line { font-size: 1.2rem; }
  .cover__tagline { font-size: .95rem; }
  .promise { padding: 2rem 1.5rem; }
  .promise__text { font-size: 1rem; }
  .contact__cta-title { font-size: 1.4rem; }
}

/* ═══════════════════════════════════════════════════════════
   PRINT
   ═══════════════════════════════════════════════════════════ */
@media print {
  .nav, .nav__hamburger { display: none !important; }
  html { scroll-padding-top: 0; }
  .cover { min-height: auto; padding: 3rem 0; page-break-after: always; }
  .enjeux, .expertise, .pourquoi { page-break-after: always; }
  body { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .reveal { opacity: 1 !important; transform: none !important; }
}