/* =========================================================
   HD FINANCES — Feuille de style principale
   Police titres : Signika | Police corps : Mulish (Google Fonts)
   ========================================================= */
@import url('https://fonts.googleapis.com/css2?family=Signika:wght@400;600;700&family=Mulish:wght@400;500;600;700&display=swap');

/* =========================================================
   VARIABLES CSS
   ========================================================= */
:root {
  --color-primary: #1B2A4D;      /* bleu marine institutionnel */
  --color-primary-dark: #121F38;
  --color-secondary: #C9973F;    /* or, accent CTA */
  --color-secondary-light: #E4C287;
  --color-text: #2D2D2D;
  --color-text-light: #6B7280;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F6F5F2;
  --color-border: #E3E1DB;
  --color-white: #FFFFFF;

  --font-heading: 'Signika', sans-serif;
  --font-body: 'Mulish', sans-serif;

  --fs-h1: clamp(2rem, 4vw, 3.2rem);
  --fs-h2: clamp(1.6rem, 3vw, 2.4rem);
  --fs-h3: 1.25rem;
  --fs-base: 1rem;
  --fs-small: 0.875rem;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  --radius: 10px;
  --radius-lg: 18px;
  --shadow: 0 4px 20px rgba(27, 42, 77, 0.08);
  --shadow-hover: 0 10px 30px rgba(27, 42, 77, 0.16);
  --transition: all 0.25s ease;
  --header-height: 120px;
}

/* =========================================================
   RESET / BASE
   ========================================================= */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
  font-size: var(--fs-base);
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  line-height: 1.25;
  font-weight: 700;
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); margin-bottom: var(--space-sm); }
h3 { font-size: var(--fs-h3); }

p { color: var(--color-text-light); }

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

ul { list-style: none; }

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

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--space-2xl) 0;
}

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

.section-header {
  max-width: 680px;
  margin: 0 auto var(--space-lg);
  text-align: center;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: var(--fs-small);
  color: var(--color-secondary);
  margin-bottom: var(--space-xs);
}

/* =========================================================
   BOUTONS CTA
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--fs-base);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
}

.btn svg { width: 18px; height: 18px; }

.btn-primary {
  background: var(--color-secondary);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

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

.btn-block { width: 100%; justify-content: center; }

/* =========================================================
   HEADER FIXE
   ========================================================= */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
}

.site-header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}

.logo img {
  height: 100px;
  width: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex: 1;
  justify-content: flex-end;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-links a {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-primary);
  padding: 0.5rem 0;
  position: relative;
  transition: var(--transition);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--color-secondary);
  transition: var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a.active { color: var(--color-secondary); }

.header-actions {
  display: none;
  align-items: center;
  gap: var(--space-sm);
}

/* =========================================================
   MENU HAMBURGER (mobile)
   ========================================================= */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
}

.hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================================
   HERO
   ========================================================= */
.hero {
  padding: calc(var(--header-height) + var(--space-2xl)) 0 var(--space-2xl);
  background:
    linear-gradient(120deg, rgba(27,42,77,0.94), rgba(27,42,77,0.86)),
    repeating-linear-gradient(135deg, rgba(201,151,63,0.08) 0 2px, transparent 2px 40px);
  color: var(--color-white);
  text-align: center;
}

.hero .eyebrow { color: var(--color-secondary-light); }

.hero h1 { color: var(--color-white); max-width: 820px; margin: 0 auto var(--space-sm); }

.hero-subtitle {
  max-width: 640px;
  margin: 0 auto var(--space-lg);
  color: rgba(255,255,255,0.85);
  font-size: 1.1rem;
}

.hero-cta {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}

.hero .btn-secondary {
  color: var(--color-white);
  border-color: rgba(255,255,255,0.5);
}

.hero .btn-secondary:hover {
  background: var(--color-white);
  color: var(--color-primary);
}

.stats-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  max-width: 900px;
  margin: 0 auto;
}

.stat-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
}

.stat-number {
  display: block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.8rem;
  color: var(--color-secondary-light);
  margin-bottom: 0.3rem;
}

.stat-label { color: rgba(255,255,255,0.8); font-size: var(--fs-small); }

/* =========================================================
   FOCUS SUR... (3 items)
   ========================================================= */
.focus-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.focus-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-md);
  text-align: center;
  transition: var(--transition);
}

.focus-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-secondary);
}

.icon-circle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-sm);
}

.icon-circle svg {
  width: 30px;
  height: 30px;
  stroke: var(--color-primary);
  fill: none;
  stroke-width: 1.8;
}

.focus-card h3 { margin-bottom: 0.4rem; }

.focus-link {
  display: inline-block;
  margin-top: var(--space-sm);
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-secondary);
  font-size: var(--fs-small);
}

/* =========================================================
   EXPERTISES (grille de cards)
   ========================================================= */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-sm);
}

.expertise-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-top: 3px solid transparent;
}

.expertise-card:hover {
  border-top-color: var(--color-secondary);
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.expertise-card .icon-circle {
  margin: 0 0 var(--space-sm);
  background: var(--color-primary);
  border: none;
}

.expertise-card .icon-circle svg { stroke: var(--color-white); }

.expertise-card h3 { margin-bottom: 0.4rem; font-size: 1.05rem; }

.expertise-card p { font-size: var(--fs-small); }

/* =========================================================
   ACTUALITÉS (3 articles)
   ========================================================= */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.news-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.news-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.news-thumb {
  height: 160px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.news-thumb svg { width: 40px; height: 40px; stroke: var(--color-secondary-light); fill: none; stroke-width: 1.6; }

.news-body { padding: var(--space-md); }

.news-date {
  font-size: var(--fs-small);
  color: var(--color-secondary);
  font-weight: 600;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.news-body h3 { margin: 0.5rem 0; }

.news-body p { font-size: var(--fs-small); }

/* =========================================================
   CONTACT — teaser (accueil) & page complète
   ========================================================= */
.contact-teaser {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  color: var(--color-white);
}

.contact-teaser h2 { color: var(--color-white); }
.contact-teaser p { color: rgba(255,255,255,0.8); }

.contact-info-list { display: flex; flex-direction: column; gap: var(--space-sm); }

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
}

.contact-info-item svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-secondary-light);
  fill: none;
  stroke-width: 1.8;
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-page-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: var(--space-lg);
  align-items: start;
}

.contact-card {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
}

.contact-card .contact-info-item svg { stroke: var(--color-secondary); }
.contact-card .contact-info-item p,
.contact-card .contact-info-item a { color: var(--color-text); }

.contact-card h3 { margin-bottom: var(--space-md); }

.contact-form {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

.form-group { margin-bottom: var(--space-sm); }

.form-group label {
  display: block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--fs-small);
  color: var(--color-primary);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  background: var(--color-white);
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(201,151,63,0.15);
}

.form-group textarea { resize: vertical; min-height: 140px; }

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin-bottom: var(--space-md);
}

.form-checkbox input { width: 18px; height: 18px; margin-top: 3px; flex-shrink: 0; }

.form-checkbox label { font-size: var(--fs-small); color: var(--color-text-light); font-family: var(--font-body); font-weight: 400; }

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.75);
  padding: var(--space-xl) 0 var(--space-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(255,255,255,0.12);
}

.footer-brand img { height: 100px; margin-bottom: var(--space-sm); filter: brightness(0) invert(1); }

.footer-brand p { color: rgba(255,255,255,0.6); font-size: var(--fs-small); max-width: 320px; }

.footer-col h4 {
  font-family: var(--font-heading);
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: var(--space-sm);
}

.footer-col ul { display: flex; flex-direction: column; gap: 0.6rem; }

.footer-col a, .footer-col p {
  color: rgba(255,255,255,0.65);
  font-size: var(--fs-small);
  transition: var(--transition);
}

.footer-col a:hover { color: var(--color-secondary-light); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding-top: var(--space-md);
  font-size: var(--fs-small);
  color: rgba(255,255,255,0.5);
}

.back-to-top {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: rgba(255,255,255,0.7);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--fs-small);
}

.back-to-top svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; }

/* =========================================================
   PAGES LÉGALES
   ========================================================= */
.legal-page {
  padding: calc(var(--header-height) + var(--space-xl)) 0 var(--space-2xl);
  max-width: 860px;
  margin: 0 auto;
}

.legal-page h1 { margin-bottom: var(--space-md); }

.legal-page h2 {
  font-size: 1.3rem;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--color-secondary-light);
}

.legal-page p, .legal-page li { color: var(--color-text-light); margin-bottom: var(--space-sm); }

.legal-page ul { list-style: disc; padding-left: 1.4rem; }

.legal-page a { color: var(--color-secondary); font-weight: 600; }

.legal-updated {
  font-size: var(--fs-small);
  color: var(--color-text-light);
  font-style: italic;
  margin-bottom: var(--space-lg);
}

/* =========================================================
   BANNIÈRE COOKIES RGPD
   ========================================================= */
.cookie-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.9);
  padding: var(--space-md);
  box-shadow: 0 -4px 24px rgba(0,0,0,0.25);
  transform: translateY(110%);
  transition: transform 0.4s ease;
}

.cookie-banner.is-visible { transform: translateY(0); }

.cookie-banner .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.cookie-text { flex: 1; min-width: 240px; font-size: var(--fs-small); }

.cookie-text strong { color: var(--color-white); font-family: var(--font-heading); }

.cookie-actions { display: flex; gap: 0.6rem; flex-wrap: wrap; }

.cookie-actions .btn { padding: 0.6rem 1.1rem; font-size: var(--fs-small); }

.cookie-actions .btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255,255,255,0.4);
}

.cookie-actions .btn-outline:hover { background: rgba(255,255,255,0.1); }

/* =========================================================
   RESPONSIVE — TABLETTE (<= 992px)
   ========================================================= */
@media (max-width: 992px) {
  .expertise-grid { grid-template-columns: repeat(3, 1fr); }
  .focus-grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-sm); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-teaser { grid-template-columns: 1fr; }
  .contact-page-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* =========================================================
   RESPONSIVE — MOBILE (<= 640px)
   ========================================================= */
@media (max-width: 640px) {
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background: var(--color-white);
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    padding: var(--space-lg) var(--space-md);
    gap: var(--space-lg);
    transform: translateX(100%);
    transition: transform 0.35s ease;
    overflow-y: auto;
  }

  .main-nav.is-open { transform: translateX(0); }

  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

  .nav-links a { font-size: 1.1rem; }

  .header-actions { display: flex; }
  .main-nav .btn-primary { width: 100%; justify-content: center; }
  .hamburger { display: flex; }

  .stats-strip { grid-template-columns: 1fr; }
  .focus-grid { grid-template-columns: 1fr; }
  .expertise-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }

  .cookie-banner .container { flex-direction: column; align-items: stretch; }
  .cookie-actions { justify-content: stretch; }
  .cookie-actions .btn { flex: 1; justify-content: center; }
}