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

:root {
  --color-body-bg: #f3f4f6;
  --color-page-bg: #ffffff;
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-accent: #0f766e;
  --color-border: #e5e7eb;
  --color-border-subtle: #e5e7eb;
  --color-text: #0f172a;
  --color-text-soft: #4b5563;
  --color-muted: #6b7280;
  --shadow-soft: 0 16px 40px rgba(15, 23, 42, 0.08);
  --radius-lg: 1rem;
  --radius-full: 999px;
  --container-width: 1120px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background-color: var(--color-body-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  text-decoration: underline;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.75rem;
}

/* HEADER */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background-color: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(229, 231, 235, 0.9);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 1.2rem;
  align-items: center;
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: #4b5563;
  font-size: 0.94rem;
  text-decoration: none;
  padding-block: 0.2rem;
}

.main-nav a:hover {
  color: #111827;
}

.main-nav a.active {
  color: #111827;
  font-weight: 500;
  position: relative;
}

.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.4rem;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-primary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid #e5e7eb;
  background-color: #ffffff;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: #111827;
  margin: 0 auto;
}

/* BUTTONS */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
}

.btn-small {
  padding: 0.45rem 1.1rem;
  font-size: 0.84rem;
}

.btn-primary {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 12px 30px rgba(37, 99, 235, 0.4);
}

.btn-ghost {
  background-color: #ffffff;
  border-color: #d1d5db;
  color: #374151;
}

.btn-ghost:hover {
  background-color: #f9fafb;
  text-decoration: none;
}

.btn-outline {
  background-color: transparent;
  border-color: #d1d5db;
  color: #111827;
}

.btn-outline:hover {
  background-color: #f3f4f6;
  text-decoration: none;
}

/* HERO */

.hero {
  padding: 3.25rem 0 3.5rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1.1fr);
  gap: 3rem;
  align-items: center;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  background-color: #e0f2fe;
  border: 1px solid #bfdbfe;
  font-size: 0.76rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: #1d4ed8;
}

.hero h1 {
  font-size: clamp(2.1rem, 3vw, 2.6rem);
  line-height: 1.1;
  margin: 1rem 0 0.9rem;
  color: #0f172a;
}

.hero-lead {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-soft);
  max-width: 34rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin: 1.75rem 0 1.6rem;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
  margin: 0;
}

.hero-metrics dt {
  font-weight: 600;
  color: #111827;
  font-size: 1rem;
}

.hero-metrics dd {
  margin: 0.25rem 0 0;
  font-size: 0.8rem;
  color: var(--color-muted);
}

.hero-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.hero-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 1.6rem 1.5rem;
  box-shadow: var(--shadow-soft);
}

.hero-card h2 {
  margin-top: 0;
  font-size: 1.1rem;
}

.hero-card ol {
  padding-left: 1.2rem;
  margin: 0.75rem 0 0.75rem;
  font-size: 0.9rem;
  color: var(--color-text-soft);
}

.hero-card li + li {
  margin-top: 0.35rem;
}

.hero-card-foot {
  margin: 0.75rem 0 0;
  font-size: 0.85rem;
  color: var(--color-text-soft);
}

.hero-ribbon {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.hero-ribbon span {
  padding: 0.25rem 0.9rem;
  border-radius: 999px;
  font-size: 0.76rem;
  border: 1px solid #e5e7eb;
  background-color: #f9fafb;
  color: #4b5563;
}

/* SECTIONS */

.section {
  padding: 3rem 0;
}

.section--light {
  background-color: #ffffff;
}

.section--alt {
  background-color: #f9fafb;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.8rem;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1.1fr);
  gap: 2.5rem;
  align-items: flex-start;
}

.card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 1.7rem 1.6rem;
  box-shadow: var(--shadow-soft);
}

.card--highlight {
  border-color: var(--color-primary);
}

.card h2 {
  margin-top: 0;
  margin-bottom: 0.6rem;
}

.card p {
  margin-top: 0.35rem;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.85rem;
  margin-top: 0.75rem;
  color: var(--color-primary);
}

.card-link::after {
  content: "↗";
  font-size: 0.82rem;
}

.project-card h2 {
  font-size: 1.05rem;
}

.icon-list {
  list-style: none;
  padding-left: 0;
  margin: 0.75rem 0 0;
  font-size: 0.9rem;
}

.icon-list li {
  position: relative;
  padding-left: 1.1rem;
  color: var(--color-text-soft);
}

.icon-list li + li {
  margin-top: 0.2rem;
}

.icon-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  top: 0.1rem;
  font-size: 0.8rem;
  color: var(--color-primary);
}

.check-list {
  list-style: none;
  padding-left: 0;
  margin: 0.9rem 0 0.2rem;
  font-size: 0.95rem;
}

.check-list li {
  position: relative;
  padding-left: 1.4rem;
  color: var(--color-text-soft);
}

.check-list li + li {
  margin-top: 0.35rem;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0.1rem;
  font-size: 0.85rem;
  color: #16a34a;
}

.trust-panel,
.side-panel,
.ai-panel {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 1.5rem 1.4rem;
  box-shadow: var(--shadow-soft);
  font-size: 0.9rem;
}

.trust-panel h3,
.side-panel h3,
.ai-panel h3 {
  margin-top: 0;
}

.trust-panel ul,
.side-panel ul,
.ai-panel ul {
  padding-left: 1.1rem;
}

/* PAGE HEADERS */

.page-header {
  padding: 3rem 0 2.5rem;
  background-color: #ffffff;
  border-bottom: 1px solid #e5e7eb;
}

.page-kicker {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  color: var(--color-muted);
}

.page-header h1 {
  font-size: clamp(1.9rem, 3vw, 2.3rem);
  margin: 0.9rem 0 0.7rem;
  color: #111827;
}

.page-lead {
  max-width: 40rem;
  color: var(--color-text-soft);
  font-size: 1rem;
  line-height: 1.7;
}

/* CTA */

.cta {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 2rem 1.7rem;
  text-align: left;
  box-shadow: var(--shadow-soft);
}

.cta h2 {
  margin-top: 0;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.35rem;
}

.cta-foot {
  margin-top: 0.9rem;
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* TEXT STYLES */

.section p {
  font-size: 0.96rem;
  line-height: 1.7;
  color: var(--color-text-soft);
}

.section h2 {
  font-size: 1.45rem;
  color: #111827;
}

.section h3 {
  font-size: 1rem;
  color: #111827;
}

.ai-panel p {
  margin: 0.15rem 0;
}

.ai-panel em {
  font-style: normal;
  color: var(--color-primary);
}

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

.small {
  font-size: 0.8rem;
}

.steps-list {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

.steps-list li + li {
  margin-top: 0.9rem;
}

.steps-list h3 {
  margin: 0 0 0.25rem;
}

/* FORMULAIRE */

.contact-form {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 1.7rem 1.6rem;
  box-shadow: var(--shadow-soft);
}

.form-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.form-field {
  flex: 1;
  min-width: min(260px, 100%);
  margin-bottom: 1rem;
}

.form-field label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
  color: #111827;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border-radius: 0.7rem;
  border: 1px solid #d1d5db;
  background-color: #ffffff;
  color: #111827;
  font-size: 0.9rem;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: 2px solid rgba(37, 99, 235, 0.35);
  outline-offset: 1px;
}

.form-field textarea {
  resize: vertical;
  min-height: 120px;
}

/* FOOTER */

.site-footer {
  border-top: 1px solid #e5e7eb;
  background-color: #ffffff;
  color: #111827;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 2.5rem;
  padding: 2.3rem 0 1.6rem;
}

.footer-columns {
  display: flex;
  gap: 2.5rem;
}

.footer-links {
  list-style: none;
  margin: 0.2rem 0 0;
  padding-left: 0;
  font-size: 0.9rem;
}

.footer-links li + li {
  margin-top: 0.15rem;
}

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

.footer-links a:hover {
  color: #111827;
}

.footer-bottom {
  border-top: 1px solid #e5e7eb;
  background-color: #f9fafb;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.8rem 0;
  color: var(--color-muted);
  font-size: 0.8rem;
}

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

/* RESPONSIVE */

@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 2.5rem;
  }
  .hero-panel {
    order: 2;
  }
  .hero {
    padding-top: 2.4rem;
  }
  .grid-3 {
    grid-template-columns: minmax(0, 1fr);
  }
  .split {
    grid-template-columns: minmax(0, 1fr);
  }
  .footer-inner {
    flex-direction: column;
  }
  .footer-columns {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  .header-inner {
    padding: 0.65rem 0;
  }
  .main-nav {
    position: fixed;
    inset: 3.2rem 0 auto;
    background-color: #ffffff;
    border-bottom: 1px solid #e5e7eb;
    transform-origin: top;
    transform: scaleY(0);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.18s ease-out, opacity 0.18s ease-out, visibility 0.18s;
  }
  .main-nav.open {
    transform: scaleY(1);
    opacity: 1;
    visibility: visible;
  }
  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.9rem 1.75rem 1.1rem;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .hero {
    padding-top: 2rem;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-metrics {
    grid-template-columns: minmax(0, 1fr);
  }
  .cta {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1.2rem;
  }
  .hero h1 {
    font-size: 1.8rem;
  }
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 0.1rem;          /* très rapproché */
}

.logo-icon {
    height: 32px;         /* Y plus grand que le texte */
    width: auto;
    display: block;
}

.logo-text {
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: #111827;
}