/* ============================================================
   MAEL — Style Global
   Charte : #68696b (primaire) | #1cb659 (accent) | Montserrat
   ============================================================ */

/* === IMPORT GOOGLE FONTS === */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,400;0,600;0,700;1,400&display=swap');

/* === VARIABLES CSS === */
:root {
  --color-primary: #68696b;
  --color-accent: #1cb659;
  --color-dark: #1a1a1a;
  --color-white: #ffffff;
  --color-light: #f4f4f4;
  --font-main: 'Montserrat', sans-serif;
  --font-weight-regular: 400;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --border-radius: 4px;
  --transition: 0.3s ease;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.12);
  --container-max: 1200px;
  --section-padding: 80px 0;
}

/* === RESET CSS === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

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

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

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

ul {
  list-style: none;
}

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

.section-padding {
  padding: var(--section-padding);
}

.section-padding-sm {
  padding: 60px 0;
}

.text-center { text-align: center; }
.text-white  { color: var(--color-white); }
.text-dark   { color: var(--color-dark); }
.text-accent { color: var(--color-accent); }
.bg-light    { background-color: var(--color-light); }
.bg-dark     { background-color: var(--color-dark); }
.bg-white    { background-color: var(--color-white); }

/* === TYPOGRAPHIE GLOBALE === */
h1, h2, h3, h4 {
  font-family: var(--font-main);
  font-weight: var(--font-weight-bold);
  color: var(--color-dark);
  line-height: 1.2;
}

h1 { font-size: clamp(32px, 5vw, 56px); }
h2 { font-size: clamp(26px, 4vw, 40px); }
h3 { font-size: clamp(18px, 3vw, 24px); }
h4 { font-size: 18px; }

p {
  font-family: var(--font-main);
  font-weight: var(--font-weight-regular);
  color: var(--color-primary);
  line-height: 1.7;
}

/* === SECTION HEADER === */
.section-header {
  margin-bottom: 56px;
}

.section-header .section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-header h2 {
  margin-bottom: 16px;
}

.section-header p {
  max-width: 560px;
  font-size: 17px;
}

.section-header.text-center p {
  margin: 0 auto;
}

/* Trait décoratif sous les titres de section */
.section-header h2::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background-color: var(--color-accent);
  margin-top: 16px;
}

.section-header.text-center h2::after {
  margin: 16px auto 0;
}

/* === BOUTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-main);
  font-weight: var(--font-weight-semibold);
  font-size: 14px;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 14px 32px;
  border-radius: var(--border-radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

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

.btn-primary:hover {
  background-color: #17a34a;
  border-color: #17a34a;
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(28, 182, 89, 0.3);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

.btn-outline:hover {
  background-color: var(--color-white);
  color: var(--color-dark);
  transform: translateY(-2px);
}

.btn-outline-dark {
  background-color: transparent;
  color: var(--color-dark);
  border-color: var(--color-dark);
}

.btn-outline-dark:hover {
  background-color: var(--color-dark);
  color: var(--color-white);
  transform: translateY(-2px);
}

/* === GRILLES === */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

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

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

/* === CARTES === */
.card {
  background-color: var(--color-white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 36px 28px;
  transition: all var(--transition);
  border-bottom: 3px solid transparent;
}

.card:hover {
  border-bottom-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.card-icon {
  width: 48px;
  height: 48px;
  color: var(--color-accent);
  margin-bottom: 20px;
}

/* === IMAGE PLACEHOLDER === */
.img-placeholder {
  background-color: var(--color-light);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 13px;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 1px;
}

/* ============================================================
   NAVBAR
   ============================================================ */

/* Barre supérieure */
.topbar {
  background-color: var(--color-dark);
  padding: 8px 0;
  font-size: 13px;
  font-weight: var(--font-weight-regular);
}

.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topbar a {
  color: rgba(255, 255, 255, 0.85);
  display: flex;
  align-items: center;
  gap: 7px;
  transition: color var(--transition);
}

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

.topbar svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* Navbar principale */
.navbar {
  background-color: var(--color-white);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: box-shadow var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

/* Logo navbar */
.navbar-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.navbar-logo-img {
  height: 48px;
  width: auto;
  display: block;
  transition: opacity var(--transition);
}

.navbar-logo:hover .navbar-logo-img {
  opacity: 0.85;
}

/* Menu */
.navbar-menu {
  display: flex;
  align-items: center;
  gap: 36px;
}

.navbar-menu a {
  font-size: 13px;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-dark);
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
}

.navbar-menu a:hover,
.navbar-menu a.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* Hamburger */
.navbar-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
  z-index: 1100;
}

.navbar-hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background-color: var(--color-dark);
  border-radius: 2px;
  transition: all 0.35s ease;
  transform-origin: center;
}

/* Hamburger → Croix */
.navbar-hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.navbar-hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.navbar-hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Menu mobile */
.navbar-mobile {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-white);
  z-index: 1050;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.77, 0, 0.175, 1);
}

.navbar-mobile.open {
  transform: translateX(0);
}

.navbar-mobile a {
  font-size: 22px;
  font-weight: var(--font-weight-bold);
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-dark);
  transition: color var(--transition);
}

.navbar-mobile a:hover,
.navbar-mobile a.active {
  color: var(--color-accent);
}

/* ============================================================
   FOOTER
   ============================================================ */

.footer {
  background-color: var(--color-dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 72px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
}

/* Colonne marque */
.footer-brand .footer-logo {
  display: inline-block;
  margin-bottom: 14px;
}

.footer-logo-img {
  height: 52px;
  width: auto;
  display: block;
  /* Filtre pour rendre le logo visible sur fond sombre :
     les parties grises deviennent blanches */
  filter: brightness(0) invert(1) opacity(0.9);
  transition: opacity var(--transition);
}

.footer-logo:hover .footer-logo-img {
  opacity: 0.75;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  line-height: 1.7;
  max-width: 260px;
}

/* Colonnes */
.footer-col h4 {
  font-family: var(--font-main);
  font-weight: var(--font-weight-bold);
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-col ul li a:hover {
  color: var(--color-accent);
}

.footer-col ul li a::before {
  content: '→';
  font-size: 12px;
  color: var(--color-accent);
  opacity: 0;
  transform: translateX(-6px);
  transition: all var(--transition);
}

.footer-col ul li a:hover::before {
  opacity: 1;
  transform: translateX(0);
}

.footer-info-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
}

.footer-info-item svg {
  width: 16px;
  height: 16px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-info-item span {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.5;
}

.footer-info-item a {
  color: rgba(255, 255, 255, 0.65);
  transition: color var(--transition);
}

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

/* Bas du footer */
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
}

.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.4);
  font-size: 13px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablette */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --section-padding: 60px 0;
  }

  .navbar-menu {
    display: none;
  }

  .navbar-hamburger {
    display: flex;
  }

  .topbar .topbar-email {
    display: none;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer-bottom .container {
    justify-content: center;
    text-align: center;
  }
}

/* Très petit mobile */
@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .btn {
    padding: 12px 24px;
    font-size: 13px;
  }

  .section-header {
    margin-bottom: 40px;
  }
}