/* ============================================================
   ABK Rénov' — Design System & Styles
   Version: 1.0
   ============================================================ */

/* --- CSS Variables --- */
:root {
  /* Colors — Charte ABK Rénov' */
  --anthracite: #222222;
  --anthracite-deep: #111111;
  --anthracite-light: #333333;
  --white: #FFFFFF;
  --off-white: #F5F5F5;
  --beige: #D4C5A9;
  --beige-light: #E8DFD0;
  --copper: #D4841E;
  --copper-light: #E8A030;
  --copper-dark: #B06A15;
  --gray: #6B6B6B;
  --gray-light: #E0E0E0;
  --gray-lighter: #F0F0F0;
  --text-primary: #222222;
  --text-secondary: #555555;
  --text-light: #999999;
  --success: #10B981;
  --danger: #EF4444;

  /* Typography */
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --section-padding: 100px 0;
  --section-padding-sm: 60px 0;
  --container-max: 1200px;
  --container-padding: 0 24px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration: 0.3s;
  --duration-slow: 0.6s;

  /* Header */
  --header-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--white);
  overflow-x: hidden;
}

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

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

ul, ol { list-style: none; }

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--anthracite);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.25rem; font-weight: 600; }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

.text-copper { color: var(--copper); }
.text-gray { color: var(--text-secondary); }
.text-white { color: var(--white); }
.text-center { text-align: center; }

/* --- Container --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--container-padding);
}

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

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

.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--white);
}

.section--gray {
  background: var(--off-white);
}

.section--copper {
  background: linear-gradient(135deg, var(--copper-dark), var(--copper), var(--copper-light));
  color: var(--white);
}

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

/* --- Section Header --- */
.section-header {
  text-align: center;
  margin-bottom: 60px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-top: 16px;
}

.section--dark .section-header p {
  color: var(--gray-light);
}

.section-label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--copper);
  margin-bottom: 16px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 32px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--duration) var(--ease);
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

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

.btn--primary:hover {
  background: var(--copper-dark);
  border-color: var(--copper-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(212, 132, 30, 0.35);
}

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

.btn--outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--white);
  transform: translateY(-2px);
}

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

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

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

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

.btn--white {
  background: var(--white);
  color: var(--copper-dark);
  border-color: var(--white);
}

.btn--white:hover {
  background: var(--off-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}

.btn--sm {
  padding: 10px 20px;
  font-size: 0.9rem;
}

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

.btn--full {
  width: 100%;
}

.btn-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  transition: all var(--duration) var(--ease);
}

.header--transparent {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
}

.header--solid {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}

.header__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  display: flex;
  align-items: center;
  z-index: 1001;
  flex-shrink: 0;
}

.header__logo img {
  height: 80px;
  width: auto;
  display: block;
}

.header__logo-icon {
  width: 42px;
  height: 42px;
  background: var(--copper);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--white);
}

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

.header__nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header__nav a {
  color: var(--anthracite);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

.header__nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--copper);
  transition: width var(--duration) var(--ease);
}

.header__nav a:hover,
.header__nav a.active {
  color: var(--copper);
}

.header__nav a:hover::after,
.header__nav a.active::after {
  width: 100%;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header__phone {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--anthracite);
  font-weight: 600;
  font-size: 0.95rem;
}

.header__phone svg {
  width: 18px;
  height: 18px;
  color: var(--copper);
}

.header__cta {
  padding: 10px 24px;
  font-size: 0.9rem;
}

/* Mobile menu toggle */
.header__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 1001;
  cursor: pointer;
}

.header__toggle span {
  width: 24px;
  height: 2px;
  background: var(--anthracite);
  transition: all var(--duration) var(--ease);
  border-radius: 2px;
}

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

.header__toggle.active span:nth-child(2) {
  opacity: 0;
}

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

/* Mobile nav overlay */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 400px;
  height: 100vh;
  background: var(--anthracite-deep);
  z-index: 999;
  padding: 120px 40px 40px;
  transition: right 0.4s var(--ease);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mobile-nav.active {
  right: 0;
}

.mobile-nav a {
  display: block;
  color: rgba(255,255,255,0.8);
  font-size: 1.2rem;
  font-weight: 500;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: all var(--duration) var(--ease);
}

.mobile-nav a:hover {
  color: var(--copper);
  padding-left: 8px;
}

.mobile-nav .btn {
  margin-top: 24px;
}

.mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration) var(--ease);
}

.mobile-overlay.active {
  opacity: 1;
  visibility: visible;
}

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

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

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(17, 17, 17, 0.92) 0%,
    rgba(17, 17, 17, 0.75) 50%,
    rgba(17, 17, 17, 0.6) 100%
  );
}

/* Geometric decorative elements */
.hero__decor {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero__decor::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  border: 1px solid rgba(212, 132, 30, 0.08);
  border-radius: 50%;
}

.hero__decor::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 500px;
  height: 500px;
  border: 1px solid rgba(212, 132, 30, 0.05);
  border-radius: 50%;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  padding-top: var(--header-height);
}

.hero__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--copper);
  margin-bottom: 24px;
}

.hero__label::before {
  content: '';
  width: 40px;
  height: 2px;
  background: var(--copper);
}

.hero__title {
  color: var(--white);
  max-width: 800px;
  margin-bottom: 24px;
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  line-height: 1.1;
}

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

.hero__subtitle {
  color: rgba(255,255,255,0.7);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  max-width: 600px;
  margin-bottom: 40px;
  line-height: 1.8;
}

.hero__cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero__trust {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}

.hero__trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
}

.hero__trust-item svg {
  width: 20px;
  height: 20px;
  color: var(--copper);
  flex-shrink: 0;
}

/* --- Trust Bar --- */
.trust-bar {
  padding: 0;
  margin-top: -50px;
  position: relative;
  z-index: 10;
}

.trust-bar__grid {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.trust-bar__item {
  background: var(--white);
  padding: 40px 30px;
  text-align: center;
  border-right: 1px solid var(--gray-light);
  transition: all var(--duration) var(--ease);
}

.trust-bar__item:first-child {
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.trust-bar__item:last-child {
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  border-right: none;
}

.trust-bar__item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  z-index: 1;
  border-radius: var(--radius-md);
}

.trust-bar__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, rgba(212,132,30,0.1), rgba(232,160,48,0.1));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.trust-bar__icon svg {
  width: 24px;
  height: 24px;
  color: var(--copper);
}

.trust-bar__number {
  display: block;
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--anthracite);
  margin-bottom: 4px;
}

.trust-bar__label {
  display: block;
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* --- Service Cards --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 40px 32px;
  border: 1px solid var(--gray-light);
  transition: all 0.4s var(--ease);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background: var(--copper);
  transition: height 0.4s var(--ease);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.service-card:hover::before {
  height: 100%;
}

.service-card__icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(212,132,30,0.1), rgba(232,160,48,0.05));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.service-card__icon svg {
  width: 28px;
  height: 28px;
  color: var(--copper);
}

.service-card__title {
  margin-bottom: 12px;
  font-size: 1.3rem;
}

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

.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--copper);
  font-weight: 600;
  font-size: 0.95rem;
  transition: gap var(--duration) var(--ease);
}

.service-card__link:hover {
  gap: 12px;
}

.service-card__link svg {
  width: 18px;
  height: 18px;
}

/* --- Why Us (Split Layout) --- */
.why-us__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.why-us__list {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin: 32px 0 40px;
}

.why-us__item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.why-us__item-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  background: rgba(212,132,30,0.15);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.why-us__item-icon svg {
  width: 22px;
  height: 22px;
  color: var(--copper);
}

.why-us__item strong {
  display: block;
  color: var(--white);
  margin-bottom: 4px;
  font-size: 1.05rem;
}

.why-us__item p {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  line-height: 1.6;
}

.why-us__image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/5;
}

.why-us__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.why-us__image-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background: var(--copper);
  color: var(--white);
  padding: 14px 24px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: var(--shadow-lg);
}

/* --- Réalisations --- */
.realisations-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.realisation-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--white);
  box-shadow: var(--shadow-sm);
  transition: all 0.4s var(--ease);
}

.realisation-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.realisation-card__image {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}

.realisation-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

.realisation-card:hover .realisation-card__image img {
  transform: scale(1.05);
}

.realisation-card__badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--copper);
  color: var(--white);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.realisation-card__content {
  padding: 24px;
}

.realisation-card__title {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.realisation-card__meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.realisation-card__meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.realisation-card__meta svg {
  width: 14px;
  height: 14px;
}

/* --- Testimonials --- */
.testimonials-slider {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.testimonials-track {
  display: flex;
  transition: transform 0.5s var(--ease);
}

.testimonial {
  min-width: 100%;
  padding: 0 20px;
  text-align: center;
}

.testimonial__stars {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-bottom: 24px;
}

.testimonial__stars svg {
  width: 20px;
  height: 20px;
  color: var(--copper);
  fill: var(--copper);
}

.testimonial__text {
  font-size: 1.2rem;
  line-height: 1.8;
  color: var(--anthracite);
  font-style: italic;
  margin-bottom: 24px;
  position: relative;
}

.testimonial__text::before {
  content: '\201C';
  font-size: 4rem;
  font-family: Georgia, serif;
  color: var(--copper);
  opacity: 0.3;
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  line-height: 1;
}

.testimonial__author {
  font-weight: 600;
  color: var(--anthracite);
}

.testimonial__location {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.testimonials-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 32px;
}

.testimonials-dots button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gray-light);
  transition: all var(--duration) var(--ease);
}

.testimonials-dots button.active {
  background: var(--copper);
  width: 30px;
  border-radius: 5px;
}

/* --- Zone d'intervention --- */
.zone-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 32px;
}

.zone-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: var(--white);
  border: 1px solid var(--gray-light);
  border-radius: 30px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: all var(--duration) var(--ease);
}

.zone-tag:hover {
  border-color: var(--copper);
  color: var(--copper);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.zone-tag svg {
  width: 14px;
  height: 14px;
  color: var(--copper);
}

.zone-tag--primary {
  background: var(--copper);
  color: var(--white);
  border-color: var(--copper);
  font-weight: 600;
}

.zone-tag--primary:hover {
  background: var(--copper-dark);
  color: var(--white);
}

.zone-tag--primary svg {
  color: var(--white);
}

/* --- CTA Section --- */
.cta-section {
  text-align: center;
  padding: 80px 24px;
}

.cta-section h2 {
  color: var(--white);
  margin-bottom: 16px;
}

.cta-section p {
  color: rgba(255,255,255,0.85);
  font-size: 1.1rem;
  max-width: 550px;
  margin: 0 auto 32px;
}

.cta-section .btn-group {
  justify-content: center;
}

/* --- FAQ --- */
.faq__list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq__item {
  background: var(--white);
  border: 1px solid var(--gray-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--duration) var(--ease);
}

.faq__item:hover {
  border-color: var(--copper);
}

.faq__item[open] {
  box-shadow: var(--shadow-md);
  border-color: var(--copper);
}

.faq__question {
  padding: 20px 24px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.05rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
  user-select: none;
}

.faq__question::-webkit-details-marker { display: none; }

.faq__question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--copper);
  transition: transform var(--duration) var(--ease);
  flex-shrink: 0;
  margin-left: 16px;
}

.faq__item[open] .faq__question::after {
  transform: rotate(45deg);
}

.faq__answer {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --- Contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

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

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.form-group label .required {
  color: var(--copper);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--gray-light);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--white);
  transition: all var(--duration) var(--ease);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--copper);
  box-shadow: 0 0 0 3px rgba(212,132,30,0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-light);
}

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

.form-group small {
  display: block;
  margin-top: 6px;
  color: var(--text-light);
  font-size: 0.8rem;
}

.form-legal {
  margin-top: 16px;
  font-size: 0.8rem;
  color: var(--text-light);
}

.form-legal a {
  color: var(--copper);
  text-decoration: underline;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-info__item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-info__icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: linear-gradient(135deg, rgba(212,132,30,0.1), rgba(232,160,48,0.05));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-info__icon svg {
  width: 22px;
  height: 22px;
  color: var(--copper);
}

.contact-info__label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.contact-info__value {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.contact-info__value a {
  color: var(--copper);
  font-weight: 500;
}

.contact-info__value a:hover {
  text-decoration: underline;
}

.contact-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 32px;
}

.btn--whatsapp {
  background: #25D366;
  color: var(--white);
  border-color: #25D366;
}

.btn--whatsapp:hover {
  background: #1ebe57;
  border-color: #1ebe57;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37,211,102,0.35);
}

.btn--phone {
  background: var(--anthracite);
  color: var(--white);
  border-color: var(--anthracite);
}

.btn--phone:hover {
  background: var(--anthracite-light);
  transform: translateY(-2px);
}

.contact-map {
  margin-top: 60px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.contact-map iframe {
  width: 100%;
  height: 400px;
  border: none;
}

/* --- Footer --- */
.footer {
  background: var(--anthracite-deep);
  color: rgba(255,255,255,0.7);
  padding: 80px 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer__logo {
  margin-bottom: 16px;
}

.footer__logo img {
  height: 100px;
  width: auto;
  display: block;
  background: var(--white);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
}

.footer__desc {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.footer__siret {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
}

.footer__heading {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  color: var(--white);
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__links a {
  font-size: 0.9rem;
  transition: all var(--duration) var(--ease);
}

.footer__links a:hover {
  color: var(--copper);
  padding-left: 6px;
}

.footer__contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 0.9rem;
}

.footer__contact-item svg {
  width: 16px;
  height: 16px;
  color: var(--copper);
  flex-shrink: 0;
}

.footer__contact-item a:hover {
  color: var(--copper);
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px 0;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
}

/* --- Service Detail Page --- */
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 0;
}

.service-detail:nth-child(even) {
  direction: rtl;
}

.service-detail:nth-child(even) > * {
  direction: ltr;
}

.service-detail__content h2 {
  margin-bottom: 20px;
}

.service-detail__text {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.service-detail__list {
  margin-bottom: 24px;
}

.service-detail__list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  color: var(--text-secondary);
}

.service-detail__list li svg {
  width: 18px;
  height: 18px;
  color: var(--copper);
  flex-shrink: 0;
  margin-top: 3px;
}

.service-detail__benefits {
  background: var(--off-white);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-top: 24px;
}

.service-detail__benefits h4 {
  margin-bottom: 12px;
  color: var(--copper);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.service-detail__benefits li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  font-size: 0.95rem;
  font-weight: 500;
}

.service-detail__benefits li svg {
  width: 18px;
  height: 18px;
  color: var(--success);
  flex-shrink: 0;
}

.service-detail__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: var(--shadow-lg);
}

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

/* Image placeholder (dev mode) */
.img-placeholder {
  background: linear-gradient(135deg, var(--anthracite-light), var(--anthracite));
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.3);
  font-size: 0.85rem;
  font-weight: 500;
  text-align: center;
  padding: 20px;
  width: 100%;
  height: 100%;
  min-height: 200px;
}

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

.value-card {
  text-align: center;
  padding: 40px 28px;
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-light);
  transition: all 0.4s var(--ease);
}

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

.value-card__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, rgba(212,132,30,0.1), rgba(232,160,48,0.05));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.value-card__icon svg {
  width: 30px;
  height: 30px;
  color: var(--copper);
}

.value-card h3 {
  margin-bottom: 12px;
  font-size: 1.15rem;
}

.value-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* --- Engagements --- */
.engagements-list {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.engagement-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-light);
  transition: all var(--duration) var(--ease);
}

.engagement-item:hover {
  border-color: var(--copper);
  box-shadow: var(--shadow-sm);
}

.engagement-item svg {
  width: 24px;
  height: 24px;
  color: var(--success);
  flex-shrink: 0;
}

.engagement-item strong {
  color: var(--text-primary);
}

.engagement-item span {
  color: var(--text-secondary);
}

/* --- Stats --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  text-align: center;
  padding: 32px 20px;
}

.stat-card__number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--copper);
  display: block;
  margin-bottom: 8px;
}

.stat-card__label {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
}

/* --- Page Header (inner pages) --- */
.page-header {
  background: var(--anthracite-deep);
  padding: 160px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  border: 1px solid rgba(212,132,30,0.06);
  border-radius: 50%;
}

.page-header h1 {
  color: var(--white);
  margin-bottom: 16px;
}

.page-header p {
  color: rgba(255,255,255,0.6);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

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

/* --- Animations --- */
.animate {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--ease),
              transform var(--duration-slow) var(--ease);
}

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

.animate--delay-1 { transition-delay: 0.1s; }
.animate--delay-2 { transition-delay: 0.2s; }
.animate--delay-3 { transition-delay: 0.3s; }
.animate--delay-4 { transition-delay: 0.4s; }
.animate--delay-5 { transition-delay: 0.5s; }

/* Hover image zoom */
.img-zoom {
  overflow: hidden;
  border-radius: var(--radius-md);
}

.img-zoom img {
  transition: transform 0.6s var(--ease);
}

.img-zoom:hover img {
  transform: scale(1.05);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .why-us__grid { grid-template-columns: 1fr; gap: 40px; }
  .why-us__image { max-height: 400px; aspect-ratio: 16/9; }
  .realisations-grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .service-detail { grid-template-columns: 1fr; gap: 40px; }
  .service-detail:nth-child(even) { direction: ltr; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 60px 0;
    --header-height: 70px;
  }

  .header__nav,
  .header__actions { display: none; }
  .header__toggle { display: flex; }

  .hero { min-height: 90vh; }
  .hero__title { font-size: clamp(2rem, 7vw, 3rem); }
  .hero__cta { flex-direction: column; }
  .hero__cta .btn { width: 100%; text-align: center; }
  .hero__trust { flex-direction: column; gap: 12px; }

  .trust-bar { margin-top: -30px; }
  .trust-bar__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: var(--gray-light);
    border-radius: var(--radius-md);
    overflow: hidden;
  }
  .trust-bar__item {
    padding: 24px 16px;
    border-right: none;
    border-radius: 0 !important;
  }

  .services-grid { grid-template-columns: 1fr; }
  .realisations-grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .values-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }

  .btn-group {
    flex-direction: column;
    width: 100%;
  }

  .btn-group .btn {
    width: 100%;
    text-align: center;
  }

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

  .page-header { padding: 120px 0 60px; }
}

@media (max-width: 480px) {
  .trust-bar__grid { grid-template-columns: 1fr; }
  .trust-bar__number { font-size: 1.5rem; }
  .stats-grid { grid-template-columns: 1fr; }
}

/* --- Utility --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}