/* ============================================
   MH ENERG'ISOL - Feuille de style principale
   ============================================ */

/* --- Variables CSS --- */
:root {
  --color-primary: #1B4332;
  --color-primary-light: #2D6A4F;
  --color-accent: #40916C;
  --color-accent-hover: #358259;
  --color-dark: #111111;
  --color-text: #2d3748;
  --color-text-light: #6b7280;
  --color-bg: #ffffff;
  --color-bg-alt: #f5f9f7;
  --color-bg-dark: #edf5f0;
  --color-border: #d5e5dc;
  --color-white: #ffffff;
  --color-success: #38a169;
  --color-error: #e53e3e;

  --font-primary: 'Poppins', sans-serif;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
  --radius: 8px;
  --radius-lg: 12px;
  --transition: all 0.3s ease;
  --header-height: 80px;
}

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

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

body {
  font-family: var(--font-primary);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

/* --- Utilitaires --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
}

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

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

.section__header {
  text-align: center;
  margin-bottom: 60px;
}

.section__subtitle {
  display: inline-block;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 10px;
}

.section__title {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 15px;
  line-height: 1.3;
}

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

.section__description {
  font-size: 1.1rem;
  color: var(--color-text-light);
  max-width: 650px;
  margin: 0 auto;
}

.section--dark .section__description {
  color: rgba(255, 255, 255, 0.8);
}

.text-center {
  text-align: center;
}

/* --- Boutons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

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

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

.btn--secondary {
  background-color: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

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

.btn--outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

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

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

.btn--white:hover {
  background-color: var(--color-bg-alt);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--sm {
  padding: 10px 24px;
  font-size: 0.875rem;
}

.btn--lg {
  padding: 18px 40px;
  font-size: 1.1rem;
}

/* --- Header / Navigation --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: transparent;
  transition: var(--transition);
  height: var(--header-height);
}

.header--scrolled {
  background-color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.header--scrolled .nav__link {
  color: var(--color-text);
}

.header--scrolled .nav__link:hover,
.header--scrolled .nav__link--active {
  color: var(--color-accent);
}

.header--scrolled .header__logo {
  color: var(--color-primary);
}

.header--scrolled .header__logo span {
  color: var(--color-accent);
}

.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.header__logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
  z-index: 1001;
  display: flex;
  align-items: center;
}

.header__logo span {
  color: var(--color-accent);
}

.header__logo-img {
  width: auto;
  height: 60px;
  max-height: 60px;
  object-fit: contain;
  transition: var(--transition);
}

/* Logo switching: dark bg = white logo, light bg = colored logo */
.header__logo-img--light {
  display: block;
}
.header__logo-img--dark {
  display: none;
}

.header--scrolled .header__logo-img--light {
  display: none;
}
.header--scrolled .header__logo-img--dark {
  display: block;
}

/* Inner pages: dark header by default */
.header--inner .header__logo-img--light {
  display: block;
}
.header--inner .header__logo-img--dark {
  display: none;
}
.header--inner.header--scrolled .header__logo-img--light {
  display: none;
}
.header--inner.header--scrolled .header__logo-img--dark {
  display: block;
}

.footer__brand img {
  opacity: 0.9;
}

/* Pages intérieures : header sombre par défaut */
.header--inner {
  background-color: var(--color-primary);
}

.header--inner .nav__link {
  color: rgba(255, 255, 255, 0.9);
}

.header--inner .nav__link:hover,
.header--inner .nav__link--active {
  color: var(--color-accent);
}

.header--inner.header--scrolled {
  background-color: var(--color-white);
}

.header--inner.header--scrolled .nav__link {
  color: var(--color-text);
}

.header--inner.header--scrolled .nav__link:hover,
.header--inner.header--scrolled .nav__link--active {
  color: var(--color-accent);
}

.nav {
  display: flex;
  align-items: center;
  gap: 5px;
}

.nav__link {
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  border-radius: var(--radius);
  position: relative;
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-accent);
}

.nav__cta {
  margin-left: 10px;
}

/* Dropdown */
.nav__item {
  position: relative;
}

.nav__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 240px;
  background-color: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  padding: 8px 0;
  z-index: 100;
}

.nav__item:hover .nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav__dropdown-link {
  display: block;
  padding: 10px 20px;
  font-size: 0.9rem;
  color: var(--color-text);
  transition: var(--transition);
}

.nav__dropdown-link:hover {
  background-color: var(--color-bg-alt);
  color: var(--color-accent);
  padding-left: 25px;
}

/* Menu hamburger mobile */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
  background: none;
  border: none;
  padding: 5px;
}

.hamburger__line {
  width: 28px;
  height: 3px;
  background-color: var(--color-white);
  border-radius: 3px;
  transition: var(--transition);
}

.header--scrolled .hamburger__line {
  background-color: var(--color-primary);
}

.header--inner .hamburger__line {
  background-color: var(--color-white);
}

.header--inner.header--scrolled .hamburger__line {
  background-color: var(--color-primary);
}

.hamburger--active .hamburger__line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

.hamburger--active .hamburger__line:nth-child(2) {
  opacity: 0;
}

.hamburger--active .hamburger__line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-color: var(--color-primary);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(27, 67, 50, 0.92) 0%, rgba(45, 106, 79, 0.85) 100%);
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  padding: 0 20px;
}

.hero__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

.hero__badge {
  display: inline-block;
  padding: 6px 16px;
  background-color: rgba(230, 126, 34, 0.2);
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 20px;
}

.hero__title {
  font-size: 3.2rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero__title span {
  color: var(--color-accent);
}

.hero__description {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 35px;
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

/* Hero pages intérieures (petit) */
.hero--page {
  min-height: 350px;
  padding-top: var(--header-height);
}

.hero--page .hero__title {
  font-size: 2.5rem;
}

.hero--page .hero__description {
  font-size: 1.1rem;
}

/* --- Cartes services --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 25px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 2rem;
  transition: var(--transition);
}

.service-card:hover .service-card__icon {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-hover));
  transform: scale(1.1);
}

.service-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 15px;
}

.service-card__text {
  font-size: 0.95rem;
  color: var(--color-text-light);
  margin-bottom: 20px;
  line-height: 1.7;
}

.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.9rem;
}

.service-card__link:hover {
  gap: 10px;
}

/* --- Service cards with images --- */
.service-card--with-image {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.service-card--with-image .service-card__image {
  width: 100%;
  height: 200px;
  overflow: hidden;
}

.service-card--with-image .service-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.service-card--with-image:hover .service-card__image img {
  transform: scale(1.08);
}

.service-card--with-image .service-card__body {
  padding: 30px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.service-card--with-image .service-card__text {
  flex: 1;
}

/* --- Gallery preview (homepage) --- */
.gallery-preview {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: 200px 200px;
  gap: 15px;
}

.gallery-preview__item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.gallery-preview__item--large {
  grid-column: 1 / 3;
  grid-row: 1 / 3;
}

.gallery-preview__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-preview__item:hover img {
  transform: scale(1.08);
}

.gallery-preview__overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.gallery-preview__item:hover .gallery-preview__overlay {
  opacity: 1;
}

.gallery-preview__overlay span {
  color: var(--color-white);
  font-size: 0.9rem;
  font-weight: 600;
}

/* --- Showcase banner --- */
.showcase-banner {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
}

.showcase-banner__bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.showcase-banner__overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(27, 67, 50, 0.92), rgba(45, 106, 79, 0.88));
}

.showcase-banner__content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  color: var(--color-white);
}

.showcase-banner__content h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--color-white);
}

.showcase-banner__content p {
  font-size: 1.05rem;
  line-height: 1.8;
  opacity: 0.9;
  margin-bottom: 25px;
}

.showcase-banner__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.showcase-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50px;
  color: var(--color-white);
  font-size: 0.9rem;
  font-weight: 500;
  backdrop-filter: blur(5px);
}

/* --- Section avantages / pourquoi nous --- */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.advantage-card {
  text-align: center;
  padding: 30px 20px;
}

.advantage-card__icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 20px;
  background-color: rgba(230, 126, 34, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-size: 1.5rem;
}

.advantage-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
}

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

.advantage-card__text {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

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

.section--dark .advantage-card__icon {
  background-color: rgba(230, 126, 34, 0.25);
}

/* --- Chiffres clés --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.stat-card {
  text-align: center;
  padding: 30px;
}

.stat-card__number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 10px;
}

.stat-card__label {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
}

/* --- Section CTA --- */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  padding: 80px 0;
  text-align: center;
}

.cta-section__title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 15px;
}

.cta-section__text {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 30px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-section__actions {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Page Entreprise --- */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-content__text h2 {
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.about-content__text p {
  margin-bottom: 15px;
  color: var(--color-text-light);
  line-height: 1.8;
}

.about-content__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

/* --- About intro (full-width text) --- */
.about-intro {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 50px;
}

.about-intro__text {
  color: var(--color-text-light);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-top: 15px;
}

/* --- Key figures --- */
.key-figures {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
}

.key-figure {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 35px 25px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.key-figure::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.key-figure:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.key-figure__icon {
  width: 55px;
  height: 55px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 15px;
  font-size: 1.3rem;
  color: var(--color-accent);
}

.key-figure__number {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

.key-figure__label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  margin-top: 5px;
}

.key-figure__detail {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-top: 8px;
  line-height: 1.5;
}

/* --- Process steps --- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 60px;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-primary-light), var(--color-accent));
  opacity: 0.3;
}

.process-step {
  text-align: center;
  position: relative;
  padding: 0 10px;
}

.process-step__number {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.process-step__icon {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: var(--color-white);
  border: 3px solid var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.5rem;
  color: var(--color-primary);
  position: relative;
  z-index: 1;
  transition: var(--transition);
}

.process-step:hover .process-step__icon {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
  transform: scale(1.1);
}

.process-step__title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.process-step__text {
  font-size: 0.88rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

.image-placeholder {
  width: 100%;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 3rem;
  gap: 15px;
  position: relative;
}

.image-placeholder span {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.image-placeholder--tall {
  aspect-ratio: 3/4;
}

.image-placeholder--wide {
  aspect-ratio: 16/9;
}

.image-placeholder--square {
  aspect-ratio: 1/1;
}

/* Valeurs grid */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.value-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 35px 25px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

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

.value-card__icon {
  font-size: 2.5rem;
  color: var(--color-accent);
  margin-bottom: 15px;
}

.value-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.value-card__text {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* --- Pages services détaillées --- */
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.service-detail--reverse {
  direction: rtl;
}

.service-detail--reverse > * {
  direction: ltr;
}

.service-detail__content h2 {
  font-size: 1.75rem;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.service-detail__content p {
  color: var(--color-text-light);
  margin-bottom: 15px;
  line-height: 1.8;
}

.service-detail__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.service-detail__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 350px;
}

/* Liste de bénéfices */
.benefits-list {
  margin: 20px 0;
}

.benefits-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  color: var(--color-text);
  font-size: 0.95rem;
}

.benefits-list li i {
  color: var(--color-success);
  margin-top: 4px;
  flex-shrink: 0;
}

/* Applications */
.applications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.application-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 25px;
  display: flex;
  align-items: center;
  gap: 15px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.application-card:hover {
  box-shadow: var(--shadow-md);
}

.application-card i {
  font-size: 1.5rem;
  color: var(--color-primary-light);
  flex-shrink: 0;
}

.application-card span {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
}

/* --- Réalisations --- */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 24px;
  border: 2px solid var(--color-border);
  border-radius: 50px;
  background: transparent;
  font-family: var(--font-primary);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-light);
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn--active {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: rgba(230, 126, 34, 0.08);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

/* --- Galerie photos --- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 15px;
}

.gallery-item {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 1;
  cursor: pointer;
}

.gallery-link {
  display: block;
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
}

.gallery-link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.gallery-link:hover img {
  transform: scale(1.08);
}

.gallery-link::after {
  content: '\f00e';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(27, 67, 50, 0.5);
  color: white;
  font-size: 1.5rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.gallery-link:hover::after {
  opacity: 1;
}

/* --- Lightbox --- */
.lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.92);
  z-index: 10000;
  align-items: center;
  justify-content: center;
}

.lightbox.active {
  display: flex;
}

.lightbox__img {
  max-width: 90%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius);
}

.lightbox__close,
.lightbox__prev,
.lightbox__next {
  position: absolute;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background 0.3s ease;
}

.lightbox__close:hover,
.lightbox__prev:hover,
.lightbox__next:hover {
  background: rgba(255, 255, 255, 0.15);
}

.lightbox__close {
  top: 20px;
  right: 20px;
  font-size: 2rem;
}

.lightbox__prev {
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox__next {
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox__counter {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

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

.project-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}

.project-card__image {
  overflow: hidden;
}

.project-card__image .image-placeholder {
  transition: var(--transition);
}

.project-card:hover .project-card__image .image-placeholder {
  transform: scale(1.05);
}

.project-card__content {
  padding: 25px;
}

.project-card__tag {
  display: inline-block;
  padding: 4px 12px;
  background-color: rgba(43, 108, 176, 0.1);
  color: var(--color-primary-light);
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.project-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.project-card__text {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* --- Contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}

.contact-form {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

.contact-form h2 {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: 25px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.form-group label span {
  color: var(--color-error);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-primary);
  font-size: 0.95rem;
  color: var(--color-text);
  transition: var(--transition);
  background-color: var(--color-bg);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

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

.form-submit {
  margin-top: 10px;
}

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

/* Contact infos */
.contact-info h2 {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: 25px;
}

.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  margin-bottom: 25px;
}

.contact-info__icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-info__text h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.contact-info__text p,
.contact-info__text a {
  font-size: 0.95rem;
  color: var(--color-text-light);
}

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

.contact-map {
  margin-top: 30px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.contact-map iframe {
  width: 100%;
  height: 250px;
  border: none;
}

.map-placeholder {
  width: 100%;
  height: 250px;
  background: var(--color-bg-dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  gap: 10px;
}

.map-placeholder i {
  font-size: 2rem;
}

/* --- Footer --- */
.footer {
  background-color: var(--color-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer__brand h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 15px;
}

.footer__brand h3 span {
  color: var(--color-accent);
}

.footer__brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer__social {
  display: flex;
  gap: 10px;
}

.footer__social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition);
}

.footer__social a:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.footer__column h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 20px;
}

.footer__column ul li {
  margin-bottom: 10px;
}

.footer__column ul li a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}

.footer__column ul li a:hover {
  color: var(--color-accent);
  padding-left: 5px;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.footer__bottom a {
  color: rgba(255, 255, 255, 0.6);
}

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

/* --- Bouton flottant appel --- */
.floating-cta {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-end;
}

.floating-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-hover));
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.floating-btn:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-xl);
}

/* --- Animations --- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll.delay-1 { transition-delay: 0.1s; }
.animate-on-scroll.delay-2 { transition-delay: 0.2s; }
.animate-on-scroll.delay-3 { transition-delay: 0.3s; }
.animate-on-scroll.delay-4 { transition-delay: 0.4s; }

/* --- Breadcrumb --- */
.breadcrumb {
  padding: 15px 0;
  background-color: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}

.breadcrumb__list {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
}

.breadcrumb__list li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb__list li a {
  color: var(--color-text-light);
}

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

.breadcrumb__list li.active {
  color: var(--color-primary);
  font-weight: 600;
}

.breadcrumb__separator {
  color: var(--color-text-light);
  font-size: 0.7rem;
}

/* --- Mentions légales --- */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
}

.legal-content h2 {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-top: 40px;
  margin-bottom: 15px;
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content p {
  color: var(--color-text-light);
  margin-bottom: 15px;
  line-height: 1.8;
}

/* --- Page Loader --- */
.page-loader {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader--hidden {
  opacity: 0;
  visibility: hidden;
}

.page-loader__spinner {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(255, 255, 255, 0.2);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* --- Hero scroll indicator --- */
.hero__scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  animation: fadeInUp 1s ease 1s both;
}

.hero__scroll-indicator i {
  font-size: 1.2rem;
  animation: bounceDown 2s ease infinite;
}

@keyframes bounceDown {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(8px); }
  60% { transform: translateY(4px); }
}

/* --- Floating button pulse --- */
.floating-btn {
  animation: pulse-ring 2s ease infinite;
}

@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(64, 145, 108, 0.5); }
  70% { box-shadow: 0 0 0 15px rgba(64, 145, 108, 0); }
  100% { box-shadow: 0 0 0 0 rgba(64, 145, 108, 0); }
}

.floating-btn:hover {
  animation: none;
}

/* --- Back to top button --- */
.back-to-top {
  position: fixed;
  bottom: 100px;
  right: 30px;
  z-index: 998;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.back-to-top--visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

/* --- Improved service card effects --- */
.service-card {
  background: linear-gradient(145deg, var(--color-white) 0%, var(--color-bg-alt) 100%);
}

.service-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  opacity: 0;
  transition: opacity 0.3s ease;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(64, 145, 108, 0.06) 0%, transparent 60%);
  pointer-events: none;
}

.service-card:hover::after {
  opacity: 1;
}

/* --- Improved advantage cards --- */
.advantage-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.advantage-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.advantage-card__icon {
  transition: var(--transition);
}

.advantage-card:hover .advantage-card__icon {
  transform: scale(1.15);
  background-color: rgba(64, 145, 108, 0.2);
}

/* --- Stat cards animation styling --- */
.stat-card {
  position: relative;
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.stat-card:hover {
  background: rgba(255, 255, 255, 0.05);
}

.stat-card__number {
  transition: transform 0.3s ease;
}

.stat-card:hover .stat-card__number {
  transform: scale(1.1);
}

/* --- Section wave dividers --- */
.section--wave-top {
  position: relative;
  padding-top: 100px;
}

.section--wave-top::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  width: 100%;
  height: 60px;
  background: var(--color-bg);
  clip-path: ellipse(55% 100% at 50% 0%);
  z-index: 1;
}

.section--wave-bottom {
  position: relative;
  padding-bottom: 100px;
}

.section--wave-bottom::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 60px;
  background: var(--color-bg-alt);
  clip-path: ellipse(55% 100% at 50% 100%);
  z-index: 1;
}

/* --- Better hero gradient overlay --- */
.hero__overlay {
  background: linear-gradient(
    160deg,
    rgba(27, 67, 50, 0.95) 0%,
    rgba(45, 106, 79, 0.88) 40%,
    rgba(27, 67, 50, 0.9) 100%
  );
}

/* --- CTA section improvement --- */
.cta-section {
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
}

/* --- Better focus states for accessibility --- */
.btn:focus-visible,
.nav__link:focus-visible,
.filter-btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

/* --- Improved footer styling --- */
.footer__column h4 {
  position: relative;
  padding-bottom: 12px;
}

.footer__column h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--color-accent);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .key-figures {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .process-steps::before {
    display: none;
  }

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

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

  .gallery-preview__item--large {
    grid-column: 1 / 3;
    grid-row: auto;
    aspect-ratio: 16/9;
  }

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

  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .about-content,
  .service-detail {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .service-detail--reverse {
    direction: ltr;
  }

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

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

@media (max-width: 768px) {
  :root {
    --header-height: 70px;
  }

  .hamburger {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 350px;
    height: 100vh;
    background-color: var(--color-primary);
    flex-direction: column;
    align-items: flex-start;
    padding: 100px 30px 30px;
    transition: var(--transition);
    box-shadow: var(--shadow-xl);
    gap: 0;
  }

  .nav--open {
    right: 0;
  }

  .nav__link {
    color: rgba(255, 255, 255, 0.9);
    padding: 12px 0;
    font-size: 1.1rem;
    width: 100%;
  }

  .nav__item {
    width: 100%;
  }

  .nav__dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius);
    padding: 5px 0;
    margin: 5px 0;
  }

  .nav__dropdown-link {
    color: rgba(255, 255, 255, 0.7);
    padding: 8px 15px;
    font-size: 0.95rem;
  }

  .nav__dropdown-link:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--color-accent);
  }

  .nav__cta {
    margin-left: 0;
    margin-top: 15px;
  }

  .hero__badge {
    font-size: 0.7rem;
    padding: 5px 12px;
    letter-spacing: 1px;
  }

  .hero__title {
    font-size: 2.2rem;
  }

  .hero--page .hero__title {
    font-size: 1.8rem;
  }

  .section {
    padding: 60px 0;
  }

  .section__title {
    font-size: 1.75rem;
  }

  .services-grid,
  .values-grid {
    grid-template-columns: 1fr;
  }

  .key-figures {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .key-figure {
    padding: 25px 20px;
  }

  .process-steps {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .process-steps::before {
    display: none;
  }

  .gallery-preview {
    grid-template-columns: 1fr;
  }

  .gallery-preview__item--large {
    grid-column: auto;
    grid-row: auto;
    aspect-ratio: 16/9;
  }

  .gallery-preview__item {
    aspect-ratio: 16/9;
  }

  .showcase-banner {
    padding: 60px 0;
  }

  .showcase-banner__content h2 {
    font-size: 1.5rem;
  }

  .showcase-banner__bg {
    background-attachment: scroll;
  }

  .showcase-banner__tags {
    gap: 8px;
  }

  .showcase-tag {
    padding: 8px 14px;
    font-size: 0.8rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }

  .cta-section__title {
    font-size: 1.5rem;
  }

  .hero--page {
    min-height: 280px;
  }

  .floating-cta {
    bottom: 20px;
    right: 20px;
  }

  .back-to-top {
    bottom: 80px;
    right: 20px;
    width: 40px;
    height: 40px;
  }

  .hero__scroll-indicator {
    display: none;
  }

  .section--wave-top::before,
  .section--wave-bottom::after {
    height: 30px;
  }

  .advantage-card {
    padding: 25px 15px;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: 1.8rem;
  }

  .hero__actions {
    flex-direction: column;
  }

  .btn--lg {
    padding: 14px 30px;
    font-size: 1rem;
  }

  .advantages-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .filter-bar {
    flex-direction: column;
    align-items: center;
  }
}