:root {
  --blue: #07558f;
  --blue-dark: #0a2f4f;
  --blue-light: #eef5fa;

  --text: #15212b;
  --muted: #65727d;

  --background: #ffffff;
  --background-soft: #f7f9fb;

  --border: #dce4ea;

  --radius: 12px;
  --shadow: 0 12px 35px rgba(15, 38, 56, 0.08);

  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family:
    Inter,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

img {
  max-width: 100%;
}

a {
  color: inherit;
}

.container {
  width: min(calc(100% - 40px), var(--container));
  margin: 0 auto;
}

/* HEADER */

.site-header {
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(220, 228, 234, 0.7);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.header-inner {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  line-height: 1.2;
}

.brand-name {
  color: var(--blue-dark);
  font-size: 21px;
  font-weight: 800;
}

.brand-subtitle {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.main-nav a {
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.main-nav a.button {
  color: #fff;
}

.main-nav a:not(.button):hover {
  color: var(--blue);
}

/* BUTTONS */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border: 1px solid var(--blue);
  border-radius: 6px;

  background: var(--blue);
  color: #fff;

  font-size: 14px;
  font-weight: 700;
  text-decoration: none;

  transition:
    transform 0.2s ease,
    background 0.2s ease,
    box-shadow 0.2s ease;
}

.button:hover {
  background: var(--blue-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(7, 85, 143, 0.18);
}

.button-outline {
  background: transparent;
  color: var(--blue);
}

.button-outline:hover {
  background: var(--blue-light);
  color: var(--blue-dark);
}

.button-small {
  min-height: 38px;
  padding: 0 18px;
}

/* COMMON */

section {
  padding: 92px 0;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family:
    Georgia,
    "Times New Roman",
    serif;
  color: #111c24;
}

h1 {
  margin-bottom: 24px;
  font-size: clamp(46px, 5vw, 72px);
  line-height: 1.04;
  letter-spacing: -0.035em;
}

h1 span {
  color: var(--blue);
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 3vw, 44px);
  line-height: 1.15;
}

h3 {
  margin-bottom: 10px;
  font-size: 18px;
  line-height: 1.35;
}

p {
  color: var(--muted);
}

.eyebrow {
  margin-bottom: 9px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.accent-line {
  width: 42px;
  height: 3px;
  margin: 20px 0;
  background: var(--blue);
}

.centered-line {
  margin-left: auto;
  margin-right: auto;
}

.section-heading {
  margin-bottom: 42px;
}

.centered {
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

/* HERO */

.hero {
  padding-top: 76px;
  padding-bottom: 76px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 70px;
}

.hero-intro {
  max-width: 650px;
  margin-bottom: 22px;
  color: var(--text);
  font-size: 18px;
}

.hero-text {
  max-width: 560px;
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-visual {
  display: flex;
  justify-content: flex-end;
}

.visual-card {
  width: 100%;
  min-height: 420px;
  position: relative;
  overflow: hidden;

  border-radius: 4px;
  background:
    linear-gradient(
      145deg,
      #f3eee6,
      #dcc9aa
    );

  box-shadow: var(--shadow);
}

.visual-paper {
  width: 62%;
  aspect-ratio: 0.8;
  position: absolute;
  top: 52px;
  left: 80px;

  display: flex;
  align-items: center;
  justify-content: center;

  background: #fffdf8;
  border: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);

  transform: rotate(3deg);
}

.diagram {
  width: 70%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.diagram-box {
  aspect-ratio: 1;
  border: 2px solid #adc3d3;
  border-radius: 4px;
  position: relative;
}

.diagram-box::after {
  content: "";
  width: 16px;
  height: 16px;

  position: absolute;
  top: 50%;
  left: 50%;

  border: 1.5px solid #adc3d3;
  border-radius: 50%;

  transform: translate(-50%, -50%);
}

.diagram-box-main {
  border-color: var(--blue);
}

.visual-circle {
  width: 110px;
  height: 110px;

  position: absolute;
  right: 50px;
  bottom: 35px;

  border-radius: 50%;
  background: var(--blue-dark);

  box-shadow:
    inset 0 0 0 13px rgba(255, 255, 255, 0.08),
    0 8px 20px rgba(0, 0, 0, 0.12);
}

/* PROCESS */

.process-section {
  background: var(--background);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.step {
  min-height: 230px;
  padding: 28px 30px;
  border-right: 1px solid var(--border);
}

.step:first-child {
  padding-left: 0;
}

.step:last-child {
  border-right: 0;
}

.step-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 15px;
}

.step-number {
  color: var(--blue);
  font-size: 20px;
  font-weight: 800;
}

.step-icon {
  color: var(--blue);
  font-size: 26px;
}

.step-icon svg {
  width: 26px;
  height: 26px;
  stroke: var(--blue); /* ou fill, selon le style de l'icône */
}


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

/* NEEDS */

.needs-section {
  background: var(--blue-light);
}

.needs-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 80px;
}

.needs-intro .highlight {
  margin-top: 24px;
  color: var(--blue);
  font-weight: 700;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 24px;
}

.benefit {
  padding: 20px 24px;
  border-right: 1px solid rgba(7, 85, 143, 0.18);
}

.benefit:first-child {
  padding-left: 0;
}

.benefit:last-child {
  border-right: 0;
}

.benefit-icon {
  margin-bottom: 15px;
  color: var(--blue);
  font-size: 30px;
}

.benefit h3 {
  font-size: 16px;
}

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

/* PROJECTS */

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

.card {
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 5px 18px rgba(20, 43, 58, 0.04);
}

.card-icon {
  width: 42px;
  height: 42px;
  margin-bottom: 22px;

  display: grid;
  place-items: center;

  border: 1px solid #b9cfde;
  border-radius: 8px;

  color: var(--blue);
  font-size: 21px;
}

.card p {
  min-height: 72px;
  font-size: 14px;
}

.card a {
  color: var(--blue);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

/* ARTICLES */

.articles-section {
  padding-top: 25px;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.article-card {
  padding: 28px 32px;
  border-right: 1px solid var(--border);
}

.article-card:first-child {
  padding-left: 0;
}

.article-card:last-child {
  border-right: 0;
}

.article-card h3 {
  min-height: 72px;
  font-size: 16px;
}

.article-card a {
  color: var(--blue);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

/* ABOUT */

.about-section {
  background: var(--background-soft);
}

.about-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 90px;
}

.about-grid p {
  font-size: 17px;
}

/* CONTACT */

.contact-section {
  padding: 55px 0;
  background: #edf4f8;
  border-top: 1px solid #d5e1e9;
}

.contact-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 50px;
}

.contact-inner h2 {
  margin-bottom: 7px;
  font-family: inherit;
  font-size: 25px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.contact-inner p {
  margin-bottom: 0;
}

/* FOOTER */

.site-footer {
  padding: 34px 0;
  background: var(--blue-dark);
  color: #fff;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.footer-inner div {
  display: flex;
  flex-direction: column;
}

.footer-inner span,
.footer-inner p {
  margin: 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 13px;
}

/* RESPONSIVE */

@media (max-width: 980px) {
  .main-nav {
    gap: 18px;
  }

  .main-nav a:not(.button) {
    display: none;
  }

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

  .hero-visual {
    justify-content: flex-start;
  }

  .visual-card {
    max-width: 620px;
  }

  .steps,
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .step:nth-child(2),
  .benefit:nth-child(2) {
    border-right: 0;
  }

  .step {
    border-bottom: 1px solid var(--border);
  }

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

@media (max-width: 700px) {
  section {
    padding: 65px 0;
  }

  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .header-inner {
    min-height: 72px;
  }

  .brand-subtitle {
    display: none;
  }

  .hero {
    padding-top: 48px;
  }

  h1 {
    font-size: 42px;
  }

  h2 {
    font-size: 31px;
  }

  .hero-grid {
    gap: 45px;
  }

  .visual-card {
    min-height: 330px;
  }

  .visual-paper {
    width: 68%;
    top: 40px;
    left: 45px;
  }

  .visual-circle {
    width: 80px;
    height: 80px;
    right: 25px;
    bottom: 25px;
  }

  .steps,
  .benefits-grid,
  .cards-grid,
  .articles-grid {
    grid-template-columns: 1fr;
  }

  .step,
  .benefit,
  .article-card {
    padding-left: 0;
    padding-right: 0;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .step:last-child,
  .benefit:last-child,
  .article-card:last-child {
    border-bottom: 0;
  }

  .article-card h3 {
    min-height: auto;
  }

  .contact-inner,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .contact-inner .button {
    width: 100%;
  }
}