/* ============================================
   Kujata-IA — palette "Bronze cosmique"
   Modifie les variables ci-dessous pour ajuster
   les couleurs sur tout le site en un seul endroit.
   ============================================ */
:root {
  --bg: #0B0E14;
  --bg-alt: #12161F;
  --bg-card: #161B26;
  --border: #262C3A;
  --text: #F5F1E8;
  --text-muted: #A9A9B3;
  --accent: #C9973A;
  --accent-light: #E7B968;
  --accent-dark: #9C7327;
  --error: #C1524A;

  --font-heading: Georgia, 'Times New Roman', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  --radius: 14px;
  --max-width: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

h1, h2, h3 {
  font-family: var(--font-heading);
  line-height: 1.2;
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: 1.15rem; }

p { color: var(--text-muted); margin: 0 0 1em; }

a { color: var(--accent-light); text-decoration: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-block;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.75em;
}

.section-intro {
  max-width: 620px;
  font-size: 1.05rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: linear-gradient(135deg, var(--accent-light), var(--accent-dark));
  color: #16110A;
}
.btn-primary:hover { box-shadow: 0 8px 24px rgba(201, 151, 58, 0.35); }

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

.btn-lg { padding: 15px 30px; font-size: 1rem; }

.btn-nav { display: none; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 14, 20, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-logo { width: 34px; height: 34px; }

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--text);
  letter-spacing: 0.01em;
}
.brand-accent { color: var(--accent); }

.main-nav {
  display: flex;
  gap: 28px;
  margin-left: auto;
  margin-right: 28px;
}
.main-nav a {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}
.main-nav a:hover { color: var(--text); }

/* ---------- Sélecteur de langue ---------- */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
  margin-left: 4px;
}
.lang-btn {
  border: none;
  background: none;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  padding: 5px 10px;
  border-radius: 999px;
  cursor: pointer;
  line-height: 1;
}
.lang-btn:hover { color: var(--text); }
.lang-btn.active {
  background: var(--accent);
  color: #16110A;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 20px;
  margin: 0 auto;
  background: var(--text);
}

/* ---------- Hero ---------- */
.hero {
  padding: 96px 0 72px;
  background:
    radial-gradient(circle at 20% 20%, rgba(201, 151, 58, 0.12), transparent 45%),
    radial-gradient(circle at 80% 0%, rgba(201, 151, 58, 0.08), transparent 40%);
}
.hero-inner { max-width: 760px; }
.hero-subtitle {
  font-size: 1.15rem;
  max-width: 620px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 12px;
}

/* ---------- Brand story ---------- */
.brand-story {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
  padding: 32px 0;
}
.brand-story p {
  margin: 0;
  max-width: 780px;
  font-size: 1rem;
  color: var(--text-muted);
}
.brand-story strong { color: var(--accent-light); }

/* ---------- Services ---------- */
.services { padding: 96px 0; }

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.card:hover {
  border-color: var(--accent-dark);
  transform: translateY(-3px);
}

.card-icon {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  color: var(--accent);
  margin-bottom: 14px;
}

.card p { margin-bottom: 0; }

/* ---------- Pourquoi nous choisir ---------- */
.why-us {
  padding: 96px 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.reasons-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.reason-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.reason-card:hover {
  border-color: var(--accent-dark);
  transform: translateY(-3px);
}

.reason-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--accent-dark);
  color: var(--accent-light);
  margin-bottom: 16px;
}
.reason-icon svg { width: 22px; height: 22px; }

.reason-card h3 { font-size: 1.05rem; }
.reason-card p { margin-bottom: 0; font-size: 0.95rem; }

/* ---------- Qui sommes-nous ---------- */
.about { padding: 96px 0; }

.about-inner {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 56px;
  align-items: start;
}

.about-photo img {
  aspect-ratio: 1 / 1;
  width: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  display: block;
}

.about-name {
  color: var(--accent-light);
  font-weight: 600;
  font-size: 1.05rem;
  margin-top: -0.3em;
}

.about-highlights {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.about-highlights li {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 0.85rem;
  color: var(--text);
  background: var(--bg-card);
}

/* ---------- Process ---------- */
.process {
  padding: 96px 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 40px;
}

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--accent-dark);
  color: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  margin-bottom: 16px;
}

.process-step p { margin-bottom: 0; }

/* ---------- Exemples par secteur ---------- */
.examples { padding: 96px 0; }

.examples-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.example-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.example-card:hover {
  border-color: var(--accent-dark);
  transform: translateY(-3px);
}

.example-sector {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: var(--accent-light);
}

.example-task {
  margin: 0;
  font-size: 0.92rem;
}

.example-gain {
  margin: 0;
  font-size: 0.85rem;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
}
.example-gain-label {
  display: inline-block;
  color: var(--accent);
  font-weight: 600;
  margin-right: 6px;
}

/* ---------- Simulateur de gain ---------- */
.simulator {
  margin-top: 40px;
  max-width: 640px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 36px;
}

.simulator-head h3 { margin-bottom: 0.4em; font-size: 1.15rem; }
.simulator-head p { font-size: 0.92rem; margin-bottom: 26px; }

.simulator-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.simulator-inline-fields {
  display: flex;
  align-items: center;
  gap: 10px;
}
.simulator-inline-fields input { flex: 1; min-width: 0; }
.field .simulator-inline-fields select { flex: 0 0 auto; width: auto; }

.simulator-unit {
  font-size: 0.85rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.field select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color 0.15s ease;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9' viewBox='0 0 14 9'%3E%3Cpath d='M1 1l6 6 6-6' fill='none' stroke='%23A9A9B3' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}
.field select:focus { outline: none; border-color: var(--accent); }
.field select:invalid { color: var(--text-muted); }

.simulator-form .field.invalid select,
.simulator-form .field.invalid input { border-color: var(--error); }

#simulator-submit {
  position: relative;
}
#simulator-submit.is-loading {
  color: transparent;
  pointer-events: none;
}
#simulator-submit.is-loading::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin: -8px 0 0 -8px;
  border-radius: 50%;
  border: 2px solid rgba(22, 17, 10, 0.35);
  border-top-color: #16110A;
  animation: simulator-spin 0.7s linear infinite;
}
@keyframes simulator-spin { to { transform: rotate(360deg); } }

.simulator-result {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
}
.simulator-result[hidden] { display: none; }

.simulator-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.simulator-stat[hidden] { display: none; }
.simulator-stat-label {
  font-size: 0.82rem;
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.simulator-stat-value {
  font-family: var(--font-heading);
  font-size: 1.7rem;
  color: var(--text);
}

.simulator-explanation {
  font-size: 0.92rem;
  margin: 0;
}

.simulator-disclaimer {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0;
}

/* ---------- Contact / qualification ---------- */
.contact {
  padding: 96px 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.contact-form-wrap {
  max-width: 640px;
  margin-top: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
}

.form-progress {
  height: 4px;
  background: var(--border);
  border-radius: 999px;
  margin-bottom: 32px;
  overflow: hidden;
}
.form-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-dark), var(--accent-light));
  transition: width 0.3s ease;
}

.form-step p { color: var(--text-muted); }
.form-step h3 { margin-bottom: 0.4em; }

.form-privacy {
  font-size: 0.85rem;
  border-left: 2px solid var(--accent-dark);
  padding-left: 14px;
  margin-top: 20px;
}

.field { margin-bottom: 22px; }
.field:last-of-type { margin-bottom: 0; }

.field label,
.field-label {
  display: block;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--text);
  margin-bottom: 8px;
}

.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field input[type="url"],
.field input[type="number"],
.field textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color 0.15s ease;
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.field textarea { resize: vertical; min-height: 110px; }

.field.invalid input,
.field.invalid textarea { border-color: var(--error); }

.phone-field {
  display: flex;
  gap: 8px;
}
.phone-field input.tel-code-input {
  flex: 0 0 auto;
  width: 78px;
  padding: 12px 8px;
  text-align: center;
  font-size: 0.9rem;
}
.phone-field input#f-tel { flex: 1 1 auto; }

.required-mark {
  color: var(--accent);
  font-weight: 600;
}
.required-mark[hidden] { display: none; }

.field-checkbox { margin-top: -6px; }
.checkbox-option {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 14px;
  cursor: pointer;
  font-size: 0.92rem;
  font-weight: 400;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.checkbox-option:hover { border-color: var(--accent-dark); }
.checkbox-option input {
  accent-color: var(--accent);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}
.checkbox-option:has(input:checked) {
  border-color: var(--accent);
  background: rgba(201, 151, 58, 0.08);
}

.field-hint {
  font-size: 0.85rem;
  margin: 10px 0 6px;
}
.field-hint-list {
  margin: 0 0 10px;
  padding-left: 18px;
  color: var(--text-muted);
  font-size: 0.85rem;
}
.field-hint-list li { margin-bottom: 4px; }

.radio-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.radio-option {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 14px;
  cursor: pointer;
  font-size: 0.92rem;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.radio-option:hover { border-color: var(--accent-dark); }
.radio-option input { accent-color: var(--accent); width: 16px; height: 16px; flex-shrink: 0; }
.radio-option:has(input:checked) {
  border-color: var(--accent);
  background: rgba(201, 151, 58, 0.08);
}

.step-error {
  color: var(--error);
  font-size: 0.85rem;
  margin: 14px 0 0;
}

.step-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-top: 28px;
}
.step-actions-start { justify-content: flex-start; }

.form-step-confirm {
  text-align: center;
  padding: 12px 0;
}
.form-step-confirm .btn { margin-top: 8px; }

.form-fallback {
  font-size: 0.85rem;
  margin-top: 22px;
}

.confirm-alt {
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.confirm-alt-divider {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin: 0 0 18px;
}
.confirm-alt h4 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: var(--text);
  margin: 0 0 0.5em;
}
.confirm-alt p {
  font-size: 0.9rem;
  max-width: 460px;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- FAQ ---------- */
.faq { padding: 96px 0; }

.faq-list {
  margin-top: 40px;
  max-width: 780px;
  border-top: 1px solid var(--border);
}

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

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  color: var(--text);
  font-family: var(--font-heading);
  font-size: 1.05rem;
  padding: 22px 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.faq-icon {
  flex-shrink: 0;
  color: var(--accent);
  font-size: 1.3rem;
  transition: transform 0.2s ease;
}
.faq-question[aria-expanded="true"] .faq-icon { transform: rotate(45deg); }

.faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.25s ease;
}
.faq-answer > p {
  overflow: hidden;
  min-height: 0;
  margin: 0 4px 0;
}
.faq-item.open .faq-answer {
  grid-template-rows: 1fr;
}
.faq-item.open .faq-answer > p {
  padding-bottom: 22px;
}
.faq-answer { overflow: hidden; }

/* ---------- CTA final ---------- */
.cta-final {
  padding: 96px 0;
  text-align: center;
  background:
    radial-gradient(circle at 50% 0%, rgba(201, 151, 58, 0.15), transparent 55%);
  border-top: 1px solid var(--border);
}
.cta-final p {
  max-width: 480px;
  margin: 0 auto 28px;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 24px;
  background: var(--bg-alt);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 32px;
}

.footer-brand { display: flex; align-items: center; gap: 10px; }

.footer-nav { display: flex; gap: 22px; }
.footer-nav a { color: var(--text-muted); font-size: 0.9rem; }
.footer-nav a:hover { color: var(--text); }

.footer-contact a { font-size: 0.9rem; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-muted);
}
.footer-bottom a { color: var(--text-muted); }
.footer-bottom p { margin: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .cards-grid, .process-grid, .reasons-grid, .examples-grid { grid-template-columns: 1fr; }
  .simulator-row { grid-template-columns: 1fr; }

  .about-inner { grid-template-columns: 1fr; }
  .about-photo { max-width: 240px; margin: 0 auto; }

  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 0;
    padding: 8px 24px 16px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }
  .main-nav.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .main-nav a { padding: 12px 0; border-bottom: 1px solid var(--border); }
  .main-nav a:last-of-type { border-bottom: none; }

  .lang-switch { margin: 14px 0 4px; align-self: flex-start; }

  .btn-nav { display: none !important; }
  .nav-toggle { display: flex; }
}

@media (max-width: 520px) {
  .hero { padding: 72px 0 56px; }
  .services, .process, .faq, .cta-final, .contact, .why-us, .about, .examples { padding: 64px 0; }
  .contact-form-wrap { padding: 24px 20px; }
  .step-actions { flex-wrap: wrap; }
  .simulator { padding: 24px 20px; }
}

@media (max-width: 360px) {
  .phone-field { flex-direction: column; }
  .phone-field input.tel-code-input { width: 100%; text-align: left; }
}