/* ============================================================
   consulting.css — Landing page consulting technique
   Odilon Hugonnot — web-developpeur.com
   Mobile-first, zéro dépendance — design Stripe/Linear
   ============================================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@600;700&family=Lato:wght@400;700&display=swap');

/* ============================================================
   Variables CSS
   ============================================================ */
:root {
  /* Couleurs */
  --color-accent:        #3aaa64;
  --color-accent-hover:  #2d844e;
  --color-accent-light:  rgba(58, 170, 100, 0.08);
  --color-accent-glow:   rgba(58, 170, 100, 0.15);
  --color-hero-bg:       #0f1923;
  --color-dark-bg:       #0f1923;
  --color-white:         #ffffff;
  --color-light-bg:      #f7f8fa;
  --color-text:          #1a1a2e;
  --color-text-muted:    #5a6270;
  --color-card-bg:       #ffffff;
  --color-card-border:   #e8ecf0;

  /* Typographie */
  --font-heading: 'Montserrat', sans-serif;
  --font-body:    'Lato', sans-serif;

  /* Espacements */
  --section-padding:    68px 0;
  --section-max-width:  1080px;
  --section-h-padding:  24px;
  --card-radius:        14px;
  --btn-radius:         8px;
  --input-radius:       10px;

  /* Transitions */
  --transition-btn:  0.2s ease;
  --transition-card: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fade: 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================================
   Reset & Base
   ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: var(--color-accent-hover);
}

ul {
  list-style: none;
}

/* text-wrap balance sur tous les headings */
h1, h2, h3 {
  text-wrap: balance;
}

/* ============================================================
   Utilitaires
   ============================================================ */
.section {
  padding: var(--section-padding);
}

.section--light {
  background: var(--color-white);
}

/* Fond gris alterné */
.section-alt {
  background: var(--color-light-bg);
}

.section--dark {
  background: var(--color-dark-bg);
  color: var(--color-white);
}

.section-inner {
  max-width: var(--section-max-width);
  margin: 0 auto;
  padding: 0 var(--section-h-padding);
}

/* Titres de section */
.section h2,
.section-alt h2 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  color: var(--color-text);
  text-align: center;
  margin-bottom: 14px;
}

.section--dark h2 {
  color: var(--color-white);
}

.section-subtitle {
  font-size: clamp(0.95rem, 1.8vw, 1.05rem);
  color: var(--color-text-muted);
  text-align: center;
  max-width: 580px;
  margin: 0 auto 56px;
  text-wrap: balance;
}

.section--dark .section-subtitle {
  color: rgba(255, 255, 255, 0.7);
}

/* Texte conclusif en bas d'une section */
.section-conclusion {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.92rem;
  margin-top: 40px;
}

/* ============================================================
   Animations fade-in (déclenché par IntersectionObserver)
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--transition-fade), transform var(--transition-fade);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays sur les grilles */
.pricing-grid .pricing-card:nth-child(1) { transition-delay: 0s; }
.pricing-grid .pricing-card:nth-child(2) { transition-delay: 0.08s; }

.expertise-grid .expertise-item:nth-child(1) { transition-delay: 0s; }
.expertise-grid .expertise-item:nth-child(2) { transition-delay: 0.08s; }
.expertise-grid .expertise-item:nth-child(3) { transition-delay: 0.16s; }
.expertise-grid .expertise-item:nth-child(4) { transition-delay: 0.24s; }
.expertise-grid .expertise-item:nth-child(5) { transition-delay: 0.32s; }
.expertise-grid .expertise-item:nth-child(6) { transition-delay: 0.40s; }

/* ============================================================
   Boutons
   ============================================================ */
.btn-primary,
.btn-secondary,
.btn-secondary--light {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px 32px;
  border-radius: var(--btn-radius);
  border: 2px solid transparent;
  cursor: pointer;
  text-align: center;
  transition: background var(--transition-btn), color var(--transition-btn),
              border-color var(--transition-btn), box-shadow var(--transition-btn);
  text-decoration: none;
  line-height: 1.2;
}

.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.btn-secondary--light:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

/* Primaire : vert plein */
.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-white);
  box-shadow: 0 8px 24px rgba(58, 170, 100, 0.3);
}

/* Secondaire : outline semi-transparent (sur fond sombre) */
.btn-secondary {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: var(--color-white);
  color: var(--color-accent);
  border-color: var(--color-white);
}

/* Secondaire sur fond clair */
.btn-secondary--light {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-secondary--light:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

/* ============================================================
   Navigation
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--color-white);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(8px);
}

.nav-inner {
  max-width: var(--section-max-width);
  margin: 0 auto;
  padding: 0 var(--section-h-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.nav-logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-text);
  text-decoration: none;
  white-space: nowrap;
}

.nav-logo:hover {
  color: var(--color-accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-size: 0.88rem;
  font-family: var(--font-body);
  color: var(--color-text-muted);
  font-weight: 700;
  transition: color var(--transition-btn);
}

.nav-links a:hover {
  color: var(--color-accent);
}

.nav-links .btn-primary {
  font-size: 0.85rem;
  padding: 9px 20px;
  color: var(--color-white);
}

.nav-links .btn-primary:hover {
  color: var(--color-white);
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  background:
    radial-gradient(ellipse at 50% 0%, rgba(58, 170, 100, 0.08) 0%, transparent 60%),
    var(--color-hero-bg);
  color: var(--color-white);
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px 24px 60px;
}

.hero .section-inner {
  max-width: 760px;
}

.hero-eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(58, 170, 100, 0.12);
  border: 1px solid rgba(58, 170, 100, 0.3);
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 24px;
}

.hero h1 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  line-height: 1.15;
  margin-bottom: 24px;
  color: var(--color-white);
  text-wrap: balance;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255, 255, 255, 0.72);
  max-width: 500px;
  margin: 0 auto 40px;
  line-height: 1.7;
  text-wrap: balance;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-note {
  margin-top: 22px;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ============================================================
   Section Processus — steps horizontal desktop
   ============================================================ */
.steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 16px;
  position: relative;
}

.step {
  /* Grid : numéro à gauche, h3+p empilés à droite */
  display: grid;
  grid-template-columns: 64px 1fr;
  grid-template-rows: auto auto;
  column-gap: 20px;
  row-gap: 4px;
  align-items: start;
  padding: 16px 0;
}

.step-number {
  grid-column: 1;
  grid-row: 1 / 3; /* span h3 + p rows */
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Cibler directement h3 et p (pas de wrapper .step-content dans le HTML) */
.step h3 {
  grid-column: 2;
  grid-row: 1;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 0;
  color: var(--color-text);
  align-self: end;
}

.step p {
  grid-column: 2;
  grid-row: 2;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  align-self: start;
}

/* Connecteur mobile : ligne verticale entre les étapes */
.step-connector {
  width: 2px;
  height: 36px;
  background: linear-gradient(180deg, var(--color-accent-glow), rgba(58, 170, 100, 0.1));
  margin-left: 31px; /* (64px / 2) - 1px — aligne avec le centre du step-number */
  flex-shrink: 0;
}

/* ============================================================
   Section FAQ (accordéon details/summary natif)
   ============================================================ */
.faq-list {
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.faq-list details {
  background: transparent;
  border-bottom: 1px solid var(--color-card-border);
}

.faq-list details:first-child {
  border-top: 1px solid var(--color-card-border);
}

.faq-list details[open] summary {
  color: var(--color-accent);
}

.faq-list summary {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text);
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color var(--transition-btn);
  user-select: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: '';
  display: block;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
  transform: rotate(45deg);
  flex-shrink: 0;
  margin-left: 16px;
  transition: transform var(--transition-btn);
}

.faq-list details[open] summary::after {
  transform: rotate(-135deg);
}

/* Réponse FAQ */
.faq-list details > p {
  padding: 0 0 20px;
  font-size: 0.93rem;
  color: var(--color-text-muted);
  line-height: 1.75;
}

.faq-list summary:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  background: var(--color-dark-bg);
  color: rgba(255, 255, 255, 0.65);
  padding: 56px 0;
  text-align: center;
}

.footer-content {
  max-width: var(--section-max-width);
  margin: 0 auto;
  padding: 0 var(--section-h-padding);
}

.footer-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-white);
  margin-bottom: 16px;
}

.footer-links {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.footer-links a {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition-btn);
}

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

.footer-copy {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.3);
}

/* ============================================================
   Pricing — cartes d'offres
   ============================================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 40px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.pricing-card {
  background: var(--color-card-bg);
  border: 1.5px solid var(--color-card-border);
  border-radius: var(--card-radius);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-card), box-shadow var(--transition-card),
              border-color var(--transition-card);
}

.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
  border-color: var(--color-accent);
}

.pricing-card--featured {
  border-top: 3px solid var(--color-accent);
  box-shadow: 0 8px 32px rgba(58, 170, 100, 0.10);
  position: relative;
}

.pricing-badge {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(58, 170, 100, 0.12);
  border: 1px solid rgba(58, 170, 100, 0.25);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
  align-self: flex-start;
}

.pricing-tier {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.2rem;
  color: var(--color-text);
  margin-bottom: 4px;
}

.pricing-duration {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.pricing-price {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 24px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.pricing-currency {
  font-size: 1.4rem;
  font-weight: 600;
}

.pricing-features {
  list-style: none;
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.pricing-features li {
  position: relative;
  padding-left: 24px;
  font-size: 0.93rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.pricing-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.pricing-cta {
  margin-top: auto;
  text-align: center;
}

/* ============================================================
   Expertise — grille de domaines
   ============================================================ */
.expertise-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 16px;
}

.expertise-item {
  background: var(--color-card-bg);
  border: 1.5px solid var(--color-card-border);
  border-radius: var(--card-radius);
  padding: 36px 28px;
  text-align: center;
  transition: transform var(--transition-card), box-shadow var(--transition-card),
              border-color var(--transition-card);
}

.expertise-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
  border-color: var(--color-accent);
}

.expertise-icon {
  width: 68px;
  height: 68px;
  background: var(--color-accent-light);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: var(--color-accent);
}

.expertise-icon svg {
  width: 34px;
  height: 34px;
}

.expertise-item h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 12px;
  color: var(--color-text);
}

.expertise-item p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ============================================================
   Stats — chiffres clés
   ============================================================ */
.stats-grid {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  text-align: center;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-number {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.6);
}

/* ============================================================
   Crosslink — section de lien croisé
   ============================================================ */
.crosslink {
  background: var(--color-dark-bg);
  color: var(--color-white);
  padding: 48px 0;
  text-align: center;
}

.crosslink p {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 20px;
  text-wrap: balance;
}

/* ============================================================
   Cal.com embed
   ============================================================ */
.cal-embed-wrapper {
  max-width: 800px;
  margin: 0 auto;
  min-height: 500px;
}

/* ============================================================
   Responsive — Tablet (640px+)
   ============================================================ */
@media (min-width: 640px) {

  /* Pricing : 2 colonnes */
  .pricing-grid {
    grid-template-columns: 1fr 1fr;
  }

  /* Expertise : 2 colonnes */
  .expertise-grid {
    grid-template-columns: 1fr 1fr;
  }

}

/* ============================================================
   Responsive — Desktop (1024px+)
   ============================================================ */
@media (min-width: 1024px) {

  /* Expertise : 3 colonnes */
  .expertise-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Processus : horizontal à partir de 1024px */
  .steps {
    flex-direction: row;
    align-items: flex-start;
    gap: 0;
  }

  /* Override grid mobile → flex colonne centré */
  .step {
    display: flex;
    flex: 1;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0;
    position: relative;
    padding: 16px;
  }

  .step-number {
    grid-row: auto; /* annule le grid-row du mobile */
    margin-bottom: 20px;
  }

  .step h3 {
    grid-column: auto;
    grid-row: auto;
    text-align: center;
    align-self: auto;
    margin-bottom: 8px;
  }

  .step p {
    grid-column: auto;
    grid-row: auto;
    text-align: center;
    align-self: auto;
  }

  /* Connecteur horizontal entre étapes */
  .step-connector {
    width: auto;
    height: 2px;
    flex: 0 0 48px;
    background: none;
    border-top: 2px dashed var(--color-accent-glow);
    margin-left: 0;
    align-self: flex-start;
    margin-top: 32px; /* aligne avec le centre du step-number (64px / 2) */
  }

}

/* ============================================================
   Mobile très petit (< 480px) : CTA hero en colonne + H1 réduit
   ============================================================ */
@media (max-width: 599px) {
  .nav-links a:not(.btn-primary) {
    display: none;
  }
  .nav-links {
    gap: 16px;
  }
}

@media (max-width: 479px) {
  .hero-cta {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }
  .hero-cta .btn-primary,
  .hero-cta .btn-secondary,
  .hero-cta .btn-secondary--light {
    width: 100%;
    max-width: 280px;
    text-align: center;
    justify-content: center;
  }
  .hero h1 {
    font-size: clamp(1.7rem, 8vw, 2.2rem);
  }
}

/* ============================================================
   Focus visible global (accessibilité)
   ============================================================ */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* ============================================================
   Reduced motion (accessibilité)
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .fade-in {
    opacity: 1;
    transform: none;
  }
}

/* ============================================================
   Print
   ============================================================ */
@media print {
  .nav,
  .footer,
  .hero-cta,
  .btn-primary,
  .btn-secondary,
  .btn-secondary--light,
  .cal-embed-wrapper {
    display: none !important;
  }

  body {
    color: #000;
    background: #fff;
  }

  .hero {
    background: #fff;
    color: #000;
    min-height: auto;
    padding: 20px 0;
  }

  .hero h1,
  .hero-subtitle {
    color: #000;
  }
}