/* ==========================================================================
   DRH Partners — Design tokens
   ========================================================================== */
:root {
  /* Couleurs de marque */
  --navy-deep:   #0E1E36;
  --navy:        #16294A;
  --navy-soft:   #223a63;
  --copper:      #B98245;
  --copper-light:#D9A968;
  --cream:       #F6F4EF;
  --cream-dim:   #EDE9E0;
  --ink:         #1A2438;
  --slate:       #5C6B85;
  --slate-light: #8994A8;
  --white:       #FFFFFF;

  /* Dégradé "flèche" issu du logo */
  --arrow-gradient: linear-gradient(100deg, #2E9C8F 0%, #E0AA3E 45%, #C9603F 75%, #8E3B63 100%);

  /* Typographie */
  --font-display: "Fraunces", "Georgia", serif;
  --font-body: "Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", monospace;

  /* Échelle d'espacement */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.75rem;
  --space-lg: 3rem;
  --space-xl: 5rem;
  --space-2xl: 7rem;

  --radius-sm: 6px;
  --radius-md: 12px;
  --container-w: 1160px;

  --shadow-card: 0 20px 40px -24px rgba(14, 30, 54, 0.25);
  --transition: 200ms ease;
}

/* ==========================================================================
   Reset
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, p, ul, figure { margin: 0; }
ul { padding: 0; list-style: none; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--cream);
  line-height: 1.65;
  font-size: 1.125rem;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--navy-deep);
  color: var(--white);
  padding: 0.75rem 1.25rem;
  z-index: 200;
}
.skip-link:focus { left: 0; }

/* ==========================================================================
   Boutons & éléments communs
   ========================================================================== */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--copper);
  font-weight: 500;
  display: block;
  margin-bottom: var(--space-sm);
}
.eyebrow-center { text-align: center; }
.eyebrow-light { color: var(--copper-light); }

.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
  color: var(--navy-deep);
  max-width: 20ch;
}
.section-title-light { color: var(--white); max-width: 16ch; }

.section-lead {
  margin-top: var(--space-sm);
  max-width: 56ch;
  color: var(--slate);
  font-size: 1.15rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1.1rem 2rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 1.15rem;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
}
.btn-primary {
  background: var(--copper);
  color: var(--white);
  box-shadow: 0 12px 24px -12px rgba(185, 130, 69, 0.55);
}
.btn-primary:hover { background: var(--copper-light); transform: translateY(-2px); }
.btn-ghost {
  border-color: rgba(14, 30, 54, 0.2);
  color: var(--navy-deep);
}
.btn-ghost:hover { border-color: var(--navy-deep); transform: translateY(-2px); }
.btn-block { width: 100%; }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(246, 244, 239, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(14, 30, 54, 0.08);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}
.brand-logo { width: 78px; height: 78px; object-fit: contain; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.65rem;
  color: var(--navy-deep);
}
.brand-tagline {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--slate);
  font-weight: 500;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 52px;
  height: 52px;
  background: transparent;
  border: 1px solid rgba(14, 30, 54, 0.15);
  border-radius: var(--radius-sm);
  padding: 0;
}
.nav-toggle span {
  display: block;
  height: 3px;
  margin-inline: auto;
  width: 26px;
  background: var(--navy-deep);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.primary-nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--cream);
  border-bottom: 1px solid rgba(14, 30, 54, 0.08);
  padding: var(--space-md) 1.25rem var(--space-lg);
  display: none;
  flex-direction: column;
  gap: var(--space-md);
}
.primary-nav.is-open { display: flex; }
.primary-nav ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  font-weight: 700;
  font-size: 1.45rem;
}
.primary-nav a {
  display: inline-block;
  padding: 0.35rem 0;
}
.primary-nav a:hover { color: var(--copper); }
.btn-nav {
  align-self: flex-start;
  font-size: 1.25rem;
  padding: 1.15rem 2.1rem;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { padding-block: var(--space-xl) var(--space-lg); overflow: hidden; }
.hero-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.1rem, 6vw, 3.4rem);
  line-height: 1.12;
  color: var(--navy-deep);
  margin-block: var(--space-sm) var(--space-md);
}
.hero-title-accent {
  background: var(--arrow-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  font-size: 1.2rem;
  color: var(--slate);
  max-width: 52ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-block: var(--space-md);
}

.hero-trust {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(14, 30, 54, 0.1);
  font-size: 1.02rem;
  color: var(--slate);
}
.hero-trust strong {
  font-family: var(--font-mono);
  color: var(--navy-deep);
  margin-right: 0.35rem;
}

.hero-visual { width: 100%; }
.ledger-chart { width: 100%; height: auto; }
.ledger-label {
  font-family: var(--font-mono);
  font-size: 11px;
  fill: var(--slate);
}

#growthPath {
  stroke-dasharray: 620;
  stroke-dashoffset: 620;
  animation: draw-path 1.8s 0.3s cubic-bezier(0.65, 0, 0.35, 1) forwards;
}
@keyframes draw-path {
  to { stroke-dashoffset: 0; }
}

/* ==========================================================================
   Services
   ========================================================================== */
.services { padding-block: var(--space-xl); }
.services .container { text-align: center; }
.services .section-title { margin-inline: auto; }
.services .section-lead { margin-inline: auto; }

.service-grid {
  margin-top: var(--space-lg);
  display: grid;
  gap: var(--space-md);
  text-align: left;
}

.service-card {
  background: var(--white);
  border: 1px solid rgba(14, 30, 54, 0.08);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  transition: transform var(--transition), box-shadow var(--transition);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 28px 48px -24px rgba(14, 30, 54, 0.3);
}

.service-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(185,130,69,0.14), rgba(46,156,143,0.14));
  color: var(--copper);
  margin-bottom: var(--space-xs);
}
.service-icon svg { width: 26px; height: 26px; }

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--navy-deep);
  font-weight: 600;
}
.service-card p { color: var(--slate); font-size: 1.05rem; }

.card-link {
  margin-top: auto;
  padding-top: var(--space-xs);
  font-weight: 600;
  font-size: 1rem;
  color: var(--navy-deep);
  border-top: 1px solid rgba(14,30,54,0.08);
  transition: color var(--transition);
}
.card-link:hover { color: var(--copper); }

/* ==========================================================================
   À propos
   ========================================================================== */
.about { padding-block: var(--space-xl); background: var(--cream-dim); }
.about-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}
.about-copy p { color: var(--slate); margin-top: var(--space-sm); }

.pillars {
  margin-top: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.pillars li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 500;
  font-size: 1.05rem;
  color: var(--navy-deep);
}
.pillar-mark {
  width: 9px;
  height: 9px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--arrow-gradient);
}

.stats-panel {
  background: var(--navy-deep);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}
.stat { display: flex; flex-direction: column; gap: 0.35rem; }
.stat-value {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 600;
  background: var(--arrow-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-label {
  font-size: 0.92rem;
  color: rgba(246, 244, 239, 0.75);
}

/* ==========================================================================
   Contact
   ========================================================================== */
.contact { padding-block: var(--space-xl); background: var(--navy-deep); color: var(--white); }
.contact-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}
.contact-lead { color: rgba(246,244,239,0.75); margin-top: var(--space-sm); max-width: 48ch; font-size: 1.1rem; }

.contact-details { margin-top: var(--space-lg); display: flex; flex-direction: column; gap: var(--space-sm); font-size: 1.05rem; }
.contact-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--copper-light);
  margin-bottom: 0.2rem;
}
.contact-details a:hover { color: var(--copper-light); }

.contact-form {
  background: var(--white);
  color: var(--ink);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.form-row { display: flex; flex-direction: column; gap: 0.4rem; }
.form-row label { font-size: 0.95rem; font-weight: 600; color: var(--navy-deep); }
.form-row input,
.form-row select,
.form-row textarea {
  padding: 0.8rem 0.95rem;
  border: 1px solid rgba(14,30,54,0.18);
  border-radius: var(--radius-sm);
  background: var(--cream);
  color: var(--ink);
  font-size: 1rem;
  resize: vertical;
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  border-color: var(--copper);
}
.form-status {
  font-size: 0.9rem;
  color: var(--copper);
  min-height: 1.2em;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--navy); color: rgba(246,244,239,0.75); padding-block: var(--space-lg); }
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: flex-start;
}
.brand-footer .brand-name { color: var(--white); }
.brand-footer .brand-logo { width: 50px; height: 50px; }
.footer-nav { display: flex; gap: var(--space-md); flex-wrap: wrap; }
.footer-nav a:hover { color: var(--copper-light); }
.footer-copy { font-size: 0.85rem; }

/* ==========================================================================
   Breakpoints — Très petits écrans (≤400px)
   ========================================================================== */
@media (max-width: 400px) {
  .container { padding-inline: 1rem; }
  .brand { gap: 0.6rem; }
  .brand-logo { width: 60px; height: 60px; }
  .brand-name { font-size: 1.3rem; }
  .brand-tagline { font-size: 0.68rem; }
  .nav-toggle { width: 46px; height: 46px; }
}

/* ==========================================================================
   Breakpoints — Tablette (≥640px)
   ========================================================================== */
@media (min-width: 640px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-panel { grid-template-columns: repeat(2, 1fr); }
  .hero-actions { flex-wrap: nowrap; }
  .footer-inner { flex-direction: row; align-items: center; justify-content: space-between; }
}

/* ==========================================================================
   Breakpoints — Desktop (≥960px)
   ========================================================================== */
@media (min-width: 960px) {
  .container { padding-inline: 2rem; }

  .nav-toggle { display: none; }
  .primary-nav {
    position: static;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--space-lg);
    background: transparent;
    border: 0;
    padding: 0;
    width: auto;
  }
  .primary-nav ul { flex-direction: row; gap: var(--space-md); font-size: 1.15rem; }
  .btn-nav { align-self: auto; font-size: 1.1rem; padding: 1.1rem 2rem; }

  .hero-inner {
    flex-direction: row;
    align-items: center;
    gap: var(--space-xl);
  }
  .hero-copy { flex: 1 1 50%; }
  .hero-visual { flex: 1 1 45%; }

  .service-grid { grid-template-columns: repeat(3, 1fr); }

  .about-inner {
    flex-direction: row;
    align-items: flex-start;
  }
  .about-copy { flex: 1 1 55%; }
  .stats-panel { flex: 1 1 40%; position: sticky; top: 6rem; }

  .contact-inner {
    flex-direction: row;
    align-items: flex-start;
  }
  .contact-copy { flex: 1 1 45%; }
  .contact-form { flex: 1 1 50%; }
}

@media (min-width: 1200px) {
  .brand-logo { width: 82px; height: 82px; }
}