:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-muted: #eef2f6;
  --text: #0f172a;
  --muted: #556070;
  --accent: #1f7a8c;
  --accent-dark: #155965;
  --accent-warm: #d7a65a;
  --accent-warm-dark: #8a5b14;
  --surface-warm: #fdf8ef;
  --border: #dce3eb;
  --shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --font-heading: "Space Grotesk", "IBM Plex Sans", sans-serif;
  --font-body: "IBM Plex Sans", "Space Grotesk", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

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

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

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(246, 247, 249, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 16px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.brand img {
  height: 80px;
  width: auto;
}

.nav {
  display: flex;
  justify-content: center;
  gap: 22px;
  font-size: 0.95rem;
  color: var(--muted);
}

.nav a {
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.nav a:hover,
.nav a:focus {
  color: var(--text);
  border-color: var(--accent);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.9rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 10px 24px rgba(31, 122, 140, 0.25);
}

.btn-primary:hover,
.btn-primary:focus {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.btn-ghost {
  border-color: var(--border);
  color: var(--text);
  background: transparent;
}

.btn-ghost:hover,
.btn-ghost:focus {
  border-color: var(--accent);
  color: var(--accent-dark);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 72px;
  background:
    linear-gradient(120deg, rgba(31, 122, 140, 0.12) 0%, rgba(31, 122, 140, 0) 48%),
    linear-gradient(180deg, #f7f9fb 0%, #eff3f7 100%);
  border-bottom: 1px solid var(--border);
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  z-index: 0;
  border-radius: 50%;
  filter: blur(0px);
  opacity: 0.35;
}

.hero::before {
  width: 420px;
  height: 420px;
  background: #dceff2;
  top: -120px;
  right: -160px;
}

.hero::after {
  width: 520px;
  height: 520px;
  background: #f4e6d3;
  bottom: -240px;
  left: -200px;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 48px;
  align-items: center;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 2.2rem + 1.4vw, 3.6rem);
  line-height: 1.05;
  margin: 0 0 18px;
  text-wrap: balance;
}

.hero p {
  color: var(--muted);
  font-size: 1.1rem;
  margin: 0 0 28px;
}

.hero .badge {
  background: #eef7f8;
  border-color: rgba(31, 122, 140, 0.25);
  color: var(--accent-dark);
  font-weight: 600;
}

.hero .lead-note {
  margin-top: -8px;
  font-size: 1rem;
  color: var(--text);
  background: rgba(31, 122, 140, 0.08);
  border-left: 3px solid var(--accent);
  padding: 12px 16px;
  border-radius: 12px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.hero-visual {
  position: relative;
  display: grid;
  gap: 18px;
  align-items: end;
  min-height: 420px;
}

.hero-photo {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  background: #f2f4f7;
}

.hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-photo-main {
  aspect-ratio: 4 / 3;
}

.hero-photo-secondary {
  position: absolute;
  right: -14px;
  bottom: 120px;
  width: 44%;
  aspect-ratio: 4 / 3;
}

.hero-card-float {
  position: absolute;
  left: -14px;
  bottom: 18px;
  width: min(320px, 60%);
}

.hero-card h3 {
  font-family: var(--font-heading);
  margin: 0 0 16px;
  font-size: 1.2rem;
}

.hero-metrics {
  display: grid;
  gap: 18px;
}

.metric {
  display: grid;
  gap: 4px;
}

.metric strong {
  font-size: 1.6rem;
}

.section {
  padding: 72px 0;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 1.5rem + 0.8vw, 2.4rem);
  margin: 0 0 16px;
}

.section-lead {
  color: var(--muted);
  margin: 0 0 40px;
  max-width: 720px;
}

.proof-section {
  background: linear-gradient(180deg, #f7f6f2 0%, #f6f7f9 100%);
}

.proof-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.proof-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: grid;
  gap: 14px;
}

.proof-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--surface-warm);
  border: 1px solid rgba(215, 166, 90, 0.45);
  color: var(--accent-warm-dark);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  width: fit-content;
}

.proof-card h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 1.2rem;
}

.proof-line {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--muted);
}

.proof-line span {
  font-weight: 600;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.72rem;
}

.proof-result {
  padding: 12px 14px;
  border-radius: 12px;
  background: #eef7f8;
  border: 1px solid rgba(31, 122, 140, 0.2);
  color: var(--accent-dark);
  font-weight: 600;
  font-size: 0.95rem;
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  align-items: center;
}

.mission-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  align-items: center;
}

.mission-photos {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.mission-photos img {
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.08);
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mission-photos img:last-child {
  grid-column: 1 / -1;
  aspect-ratio: 16 / 9;
}

.testimonials {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.articles-actions {
  margin-top: 26px;
  display: flex;
  justify-content: center;
}

.articles-archive {
  max-width: 980px;
  margin: 0 auto;
  display: grid;
  gap: 18px;
}

.article-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3vw, 28px);
  box-shadow: var(--shadow);
  display: grid;
  gap: 14px;
}

.article-item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  flex-wrap: wrap;
}

.article-item h2 {
  margin: 6px 0 0;
  font-family: var(--font-heading);
  font-size: 1.4rem;
}

.article-item p {
  margin: 0;
  color: var(--muted);
}

.article-date {
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.article-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.article-tag {
  background: var(--surface-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.8rem;
  color: var(--muted);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.faq-item h3 {
  font-family: var(--font-heading);
  margin: 0 0 10px;
  font-size: 1.15rem;
}

.faq-item p {
  margin: 0;
  color: var(--muted);
}

.article-card p {
  margin: 0 0 18px;
  color: var(--muted);
}

.article-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.article-card .btn {
  margin-top: auto;
  align-self: flex-end;
}

.article-meta {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 10px;
}

.article-hero {
  position: relative;
  overflow: hidden;
  padding: 88px 0 56px;
  background: linear-gradient(135deg, #e8f2f4 0%, #f6f7f9 55%, #f4e6d3 120%);
  border-bottom: 1px solid var(--border);
}

.article-hero::after {
  content: "";
  position: absolute;
  top: -140px;
  right: -160px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: #dceff2;
  opacity: 0.45;
}

.article-hero .container {
  position: relative;
  z-index: 1;
}

.article-hero .article-meta {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
}

.article-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 1.6rem + 1.2vw, 2.8rem);
  margin: 0 0 16px;
}

.article-hero p {
  margin: 0;
  color: var(--muted);
  max-width: 760px;
}

.article-content {
  padding: 56px 0 96px;
  background: linear-gradient(180deg, #eef2f6 0%, #f6f7f9 100%);
}

.article-body {
  max-width: 980px;
  margin: 0 auto;
  display: grid;
  gap: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 3.2vw, 44px);
  box-shadow: var(--shadow);
  font-size: 1.05rem;
  line-height: 1.8;
}

.article-body p {
  margin: 0;
  color: var(--text);
}

.article-body p strong {
  color: var(--accent-dark);
}

.article-body h2,
.article-body h3 {
  font-family: var(--font-heading);
  margin: 26px 0 6px;
  line-height: 1.2;
}

.article-body h2 {
  font-size: 1.55rem;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.article-body h2:first-of-type {
  margin-top: 12px;
  padding-top: 0;
  border-top: none;
}

.article-body ul.example-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.article-body ul.example-list li {
  margin: 0;
  padding: 12px 16px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  background: #f8fbfc;
  color: var(--text);
  display: grid;
  gap: 6px;
}

.article-body ul.example-list li::before {
  content: "Par exemple";
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-dark);
  font-weight: 600;
}

.article-body ul.takeaway-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.article-body ul.takeaway-list li {
  margin: 0;
  padding: 12px 16px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent-warm);
  background: var(--surface-warm);
  color: var(--text);
  display: grid;
  gap: 6px;
}

.article-body ul.takeaway-list li::before {
  content: "Point clé";
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-warm-dark);
  font-weight: 600;
}

.article-cta {
  margin-top: 28px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.testimonial {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--border);
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.06);
}

.testimonial p {
  margin: 0 0 16px;
  color: var(--text);
}

.testimonial-meta {
  display: grid;
  gap: 4px;
  color: var(--muted);
  font-size: 0.95rem;
}

.split-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.split-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.card {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--border);
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.06);
}

.card h3 {
  font-family: var(--font-heading);
  margin: 0 0 12px;
  font-size: 1.2rem;
}

.card p {
  margin: 0;
  color: var(--muted);
}

/* Offer cards */
.offer-card {
  position: relative;
  padding: 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.offer-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.12);
}

.offer-tag {
  display: inline-block;
  background: var(--accent);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.offer-card h3 {
  font-size: 1.4rem;
  margin-bottom: 8px;
  color: var(--text);
}

.offer-duration {
  color: var(--accent-dark);
  font-weight: 600;
  font-size: 0.9rem;
  margin: 8px 0 16px;
}

.offer-deliverables {
  list-style: none;
  padding: 0;
  margin: 20px 0;
  color: var(--text);
}

.offer-deliverables li {
  padding: 6px 0;
  font-size: 0.95rem;
}

.offer-card .btn {
  margin-top: 16px;
  width: 100%;
  text-align: center;
}

.band {
  background: var(--surface-muted);
}

.logo-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 18px;
  align-items: center;
  opacity: 0.7;
}

.logo-row img {
  max-height: 44px;
  object-fit: contain;
  margin: 0 auto;
}

.process {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.step {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 22px;
  border: 1px solid var(--border);
}

.step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #e2f2f4;
  color: var(--accent-dark);
  font-weight: 600;
  margin-bottom: 12px;
}

.step h4 {
  margin: 0 0 8px;
  font-family: var(--font-heading);
}

.quote {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 28px;
  align-items: center;
  background: var(--surface);
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.quote blockquote {
  margin: 0;
  font-size: 1.2rem;
  color: var(--text);
}

.quote cite {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-style: normal;
}

.cta {
  background: var(--accent);
  color: white;
  border-radius: var(--radius-lg);
  padding: 36px;
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 24px;
  align-items: center;
}

.cta h3 {
  font-family: var(--font-heading);
  margin: 0 0 10px;
  font-size: 2rem;
}

.cta p {
  margin: 0;
  opacity: 0.9;
}

.cta .btn {
  background: white;
  color: var(--accent-dark);
  box-shadow: none;
}

.cta-note {
  margin: 12px 0 0;
  font-size: 0.95rem;
  opacity: 0.9;
}

.footer {
  padding: 40px 0 24px;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  border-top: 1px solid var(--border);
  padding-top: 24px;
}

.footer h4 {
  margin: 0 0 12px;
  font-family: var(--font-heading);
  color: var(--text);
}

.footer a {
  color: var(--muted);
}

.footer a:hover {
  color: var(--text);
}

.badge-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0;
}

[data-animate] {
  opacity: 0;
  transform: translateY(12px);
}

@media (prefers-reduced-motion: no-preference) {
  [data-animate] {
    animation: fade-up 0.7s ease forwards;
  }

  .stagger > * {
    animation-delay: calc(var(--i, 0) * 120ms);
  }
}

@keyframes fade-up {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .header-inner {
    grid-template-columns: auto 1fr;
  }

  .nav {
    display: none;
    grid-column: 1 / -1;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding: 16px 0 4px;
  }

  .nav-toggle {
    display: inline-flex;
    justify-self: end;
  }

  .nav-open .nav {
    display: flex;
  }

  .nav-open .header-inner {
    align-items: flex-start;
  }

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

  .hero-visual {
    min-height: auto;
  }

  .hero-photo-secondary,
  .hero-card-float {
    position: static;
    width: 100%;
  }

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

  .grid-3,
  .process,
  .proof-grid,
  .footer-grid,
  .testimonials,
  .mission-grid,
  .articles-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .proof-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .logo-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .quote,
  .cta {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero {
    padding: 72px 0 56px;
  }

  .hero-card {
    padding: 22px;
  }

  .cta {
    padding: 28px;
  }
}