/* =========================================================
   Sébastien Vézina — Conseiller en RS&DE
   Feuille de style principale
   ========================================================= */

/* ---------- Variables ---------- */
:root {
  --blue: #1F4E79;
  --blue-dark: #173a5c;
  --blue-tint: #eef3f8;
  --anthracite: #2b2f36;
  --ink: #1c1f24;
  --gray-700: #4a4f57;
  --gray-500: #6b7280;
  --gray-300: #d7dbe0;
  --gray-200: #e6e9ed;
  --gray-100: #f4f6f8;
  --gray-50: #fafbfc;
  --white: #ffffff;

  --maxw: 1200px;
  --radius: 10px;
  --radius-sm: 8px;

  --shadow-sm: 0 1px 2px rgba(28, 31, 36, .05);
  --shadow: 0 6px 24px rgba(28, 31, 36, .07);
  --shadow-lg: 0 14px 40px rgba(28, 31, 36, .10);

  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  --space-section: 96px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { line-height: 1.2; letter-spacing: -.01em; margin: 0; color: var(--ink); }
p { margin: 0; }

ul, ol { margin: 0; padding: 0; list-style: none; }

:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 2px;
  border-radius: 3px;
}

/* ---------- Utilitaires ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 24px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--blue);
  color: #fff;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  z-index: 1000;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
}

.section {
  padding-block: var(--space-section);
}
.section-alt { background: var(--gray-50); border-block: 1px solid var(--gray-200); }
.section-dark { background: var(--anthracite); color: #e9ebee; }
.section-dark h2, .section-dark h3 { color: #fff; }

.section-head {
  max-width: 760px;
  margin-bottom: 56px;
}
.section-eyebrow {
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: 13px;
  font-weight: 600;
  color: var(--blue);
  margin-bottom: 14px;
}
.section-eyebrow-light { color: #9cc2e6; }
.section-head h2 {
  font-size: clamp(28px, 3.4vw, 38px);
  font-weight: 700;
}
.section-intro {
  margin-top: 18px;
  font-size: 19px;
  color: var(--gray-700);
}
.section-dark .section-intro { color: #c4c9d0; }

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  padding: 15px 26px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color .18s ease, border-color .18s ease, color .18s ease;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }

.btn-primary {
  background: var(--blue);
  color: #fff;
}
.btn-primary:hover { background: var(--blue-dark); }

.btn-ghost {
  background: transparent;
  color: var(--blue);
  border-color: var(--gray-300);
}
.btn-ghost:hover { border-color: var(--blue); background: var(--blue-tint); }

.btn-block { width: 100%; }
.btn[disabled] { opacity: .65; cursor: not-allowed; }

/* ---------- En-tête ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--gray-200);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}
.brand { display: flex; flex-direction: column; line-height: 1.15; }
.brand:hover { text-decoration: none; }
.brand-name { font-weight: 700; font-size: 18px; color: var(--ink); }
.brand-title { font-size: 11.5px; letter-spacing: .02em; text-transform: uppercase; color: var(--gray-500); white-space: nowrap; }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-menu a {
  color: var(--gray-700);
  font-size: 15px;
  font-weight: 500;
}
.nav-menu a:hover { color: var(--blue); text-decoration: none; }
.nav-cta {
  background: var(--blue);
  color: #fff !important;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
}
.nav-cta:hover { background: var(--blue-dark); }

.nav-lang {
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--gray-700) !important;
}
.nav-lang:hover { border-color: var(--blue); color: var(--blue) !important; text-decoration: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 8px;
  cursor: pointer;
}
.nav-toggle-bar {
  width: 24px; height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform .2s ease, opacity .2s ease;
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(180deg, var(--blue-tint) 0%, var(--white) 100%);
  border-bottom: 1px solid var(--gray-200);
}
.hero-inner {
  padding-block: clamp(72px, 11vw, 128px);
  max-width: 880px;
}
.hero-eyebrow {
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: 13px;
  font-weight: 600;
  color: var(--blue);
  margin-bottom: 22px;
}
.hero h1 {
  font-size: clamp(34px, 5.2vw, 56px);
  font-weight: 700;
  letter-spacing: -.02em;
}
.hero-lead {
  margin-top: 24px;
  font-size: clamp(18px, 2.2vw, 21px);
  color: var(--gray-700);
  max-width: 680px;
}
.hero-positioning {
  margin-top: 28px;
  padding-left: 20px;
  border-left: 3px solid var(--blue);
  font-size: 18px;
  font-weight: 500;
  color: var(--anthracite);
}
.hero-credibility {
  margin-top: 26px;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--anthracite);
  max-width: 680px;
}
.hero-reassurance {
  margin-top: 12px;
  font-size: 16px;
  color: var(--gray-700);
  max-width: 680px;
}
.hero-actions {
  margin-top: 38px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ---------- Défis ---------- */
.challenge-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px 40px;
}
.challenge {
  display: flex;
  gap: 18px;
}
.challenge .ic {
  flex: none;
  width: 28px; height: 28px;
  fill: none;
  stroke: var(--blue);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  margin-top: 4px;
}
.challenge h3 { font-size: 18px; font-weight: 600; margin-bottom: 6px; }
.challenge p { color: var(--gray-700); font-size: 16px; }

/* ---------- Solution ---------- */
.solution-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 56px;
  align-items: start;
}
.solution-text p { margin-top: 18px; color: var(--gray-700); }
.solution-text h2 { font-size: clamp(28px, 3.4vw, 38px); margin-top: 14px; }
.solution-points {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: 18px;
}
.solution-points li {
  display: flex;
  gap: 14px;
  font-size: 16px;
  color: var(--anthracite);
  font-weight: 500;
}
.check {
  flex: none;
  width: 22px; height: 22px;
  margin-top: 2px;
  border-radius: 50%;
  background: var(--blue-tint);
  position: relative;
}
.check::after {
  content: "";
  position: absolute;
  left: 7px; top: 4px;
  width: 5px; height: 9px;
  border: solid var(--blue);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

/* ---------- À propos ---------- */
.about-text { max-width: 760px; }
.about-text p { color: var(--gray-700); font-size: 18px; }
.about-text p + p { margin-top: 18px; }

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 820px;
  display: grid;
  gap: 14px;
}
.faq-item {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 24px;
  font-size: 17px;
  font-weight: 600;
  color: var(--anthracite);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "";
  flex: none;
  width: 10px; height: 10px;
  margin-right: 4px;
  border-right: 2px solid var(--blue);
  border-bottom: 2px solid var(--blue);
  transform: rotate(45deg);
  transition: transform .2s ease;
}
.faq-item[open] summary::after { transform: rotate(-135deg); }
.faq-item > p {
  padding: 0 24px 22px;
  color: var(--gray-700);
  font-size: 16px;
}

/* ---------- Cartes services ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 30px 28px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
}
.card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
  border-color: var(--gray-300);
}
.card-ic {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  background: var(--blue-tint);
  margin-bottom: 18px;
}
.card-ic svg {
  width: 24px; height: 24px;
  fill: none;
  stroke: var(--blue);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.card h3 { font-size: 18px; font-weight: 600; margin-bottom: 10px; }
.card p { color: var(--gray-700); font-size: 15.5px; }

/* ---------- Ligne du temps ---------- */
.timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.step {
  position: relative;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 28px 26px;
  box-shadow: var(--shadow-sm);
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 16px;
}
.step h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.step p { color: var(--gray-700); font-size: 15.5px; }

/* ---------- Domaines ---------- */
.domain-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
}
.domain {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-start;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 24px 22px;
  font-weight: 600;
  font-size: 15.5px;
  color: var(--anthracite);
  min-height: 132px;
}
.domain-ic {
  display: inline-flex;
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--blue-tint);
}
.domain-ic svg {
  width: 22px; height: 22px;
  fill: none;
  stroke: var(--blue);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ---------- Pourquoi (sombre) ---------- */
.reason-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.reason {
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--radius);
  padding: 26px 24px;
}
.reason h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.reason p { color: #c4c9d0; font-size: 15px; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 56px;
  align-items: start;
}
.contact-info h2 { font-size: clamp(28px, 3.4vw, 38px); margin-top: 14px; }
.contact-lead { margin-top: 18px; color: var(--gray-700); font-size: 18px; }
.contact-note { margin-top: 18px; color: var(--gray-700); font-size: 17px; }
.contact-details {
  margin-top: 32px;
  display: grid;
  gap: 20px;
}
.contact-item dt {
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--gray-500);
  font-weight: 600;
  margin-bottom: 3px;
}
.contact-item dd { margin: 0; font-size: 17px; color: var(--anthracite); }

/* ---------- Formulaire ---------- */
.contact-form-wrap {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow);
}
.form-intro { color: var(--gray-700); margin-bottom: 24px; }
.field { margin-bottom: 20px; }
.field label {
  display: block;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--anthracite);
  margin-bottom: 7px;
}
.req { color: var(--blue); }
.field input,
.field textarea {
  width: 100%;
  font-family: inherit;
  font-size: 16px;
  color: var(--ink);
  padding: 13px 14px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  background: var(--white);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(31, 78, 121, .15);
}
.field input[aria-invalid="true"],
.field textarea[aria-invalid="true"] {
  border-color: #c0392b;
}
.field-hint { font-size: 13.5px; color: var(--gray-500); margin-top: 6px; }
.field-error {
  font-size: 13.5px;
  color: #c0392b;
  margin-top: 6px;
  min-height: 0;
}
.field-error:empty { display: none; }

/* Honeypot — hors écran, jamais visible */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px; height: 1px;
  overflow: hidden;
}

.spinner {
  width: 18px; height: 18px;
  border: 2px solid rgba(255, 255, 255, .4);
  border-top-color: #fff;
  border-radius: 50%;
  display: none;
  animation: spin .7s linear infinite;
}
.is-sending .spinner { display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

.form-status {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 15px;
}
.form-status-success {
  background: #e8f5ee;
  color: #1e6b3e;
  border: 1px solid #b6e0c6;
}
.form-status-error {
  background: #fdecea;
  color: #a5281b;
  border: 1px solid #f3c4bf;
}
.form-status-error a { color: #a5281b; text-decoration: underline; }

/* ---------- Pied de page ---------- */
.site-footer {
  background: var(--anthracite);
  color: #c4c9d0;
  padding-block: 44px;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 40px;
  align-items: center;
  justify-content: space-between;
}
.footer-name { color: #fff; font-weight: 700; font-size: 17px; }
.footer-title { font-size: 14px; color: #aab0b8; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: #cfd4da; font-size: 15px; }
.footer-links a:hover { color: #fff; }
.footer-copy { font-size: 13.5px; color: #8d939c; width: 100%; padding-top: 14px; border-top: 1px solid rgba(255,255,255,.1); }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 980px) {
  .card-grid,
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .domain-grid { grid-template-columns: repeat(3, 1fr); }
  .reason-grid { grid-template-columns: repeat(2, 1fr); }
  .solution-grid,
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

/* Bascule du menu en mode hamburger plus tôt pour laisser de la place au titre */
@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow);
    padding: 8px 24px 18px;
    display: none;
  }
  .nav-menu.is-open { display: flex; }
  .nav-menu li { width: 100%; }
  .nav-menu a { display: block; padding: 12px 0; border-bottom: 1px solid var(--gray-100); }
  .nav-cta { text-align: center; margin-top: 10px; }
  .nav-lang { text-align: center; margin-top: 10px; }
}

@media (max-width: 720px) {
  :root { --space-section: 64px; }

  .challenge-list { grid-template-columns: 1fr; }
  .card-grid,
  .timeline,
  .domain-grid,
  .reason-grid { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 26px; }
  .hero-actions .btn { flex: 1 1 auto; }
}

@media (max-width: 460px) {
  body { font-size: 16px; }
  .brand-title { font-size: 10.5px; letter-spacing: .01em; }
}

/* ---------- Préférences de mouvement réduit ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}