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

:root {
  --primary-color: #316d7e;
  --primary-light: #4a8a9d;
  --primary-dark: #1f4a56;
  --accent-color: #00b0c1;
  --text-dark: #1a3b4c;
  --text-gray: #555;
  --bg-light: #fafafa;
  --bg-white: #ffffff;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
  --transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  --radius: 20px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

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

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

/* ===== LOADER 3D LOGO ===== */
.loader-container {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

.loader-container.hide {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-content {
  text-align: center;
  perspective: 800px;
}

.logo-3d-wrapper {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 0 auto 1.5rem;
  transform-style: preserve-3d;
  animation: logoFloat 3s infinite ease-in-out;
}

.logo-3d {
  width: 100%;
  height: 100%;
  border-radius: 20px;
  object-fit: contain;
  filter: drop-shadow(0 10px 40px rgba(0, 0, 0, 0.3));
  animation: logoSpin3D 4s infinite linear;
  transform-style: preserve-3d;
}

@keyframes logoSpin3D {
  0% { transform: rotateY(0deg) rotateX(5deg) scale(1); }
  25% { transform: rotateY(90deg) rotateX(5deg) scale(1.05); }
  50% { transform: rotateY(180deg) rotateX(5deg) scale(1); }
  75% { transform: rotateY(270deg) rotateX(5deg) scale(1.05); }
  100% { transform: rotateY(360deg) rotateX(5deg) scale(1); }
}

@keyframes logoFloat {
  0%, 100% { transform: translateY(0) rotateX(5deg); }
  50% { transform: translateY(-15px) rotateX(-5deg); }
}

.logo-ring {
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.15);
  animation: ringSpin 6s infinite linear;
  transform-style: preserve-3d;
}

.logo-ring::before {
  content: '';
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  border: 2px solid rgba(0, 176, 193, 0.3);
  animation: ringSpin 4s infinite linear reverse;
}

.ring-2 {
  inset: -35px;
  border-color: rgba(0, 176, 193, 0.1);
  animation-duration: 8s;
}

.ring-2::before {
  inset: -15px;
  border-color: rgba(255, 255, 255, 0.1);
  animation-duration: 5s;
}

@keyframes ringSpin {
  0% { transform: rotate(0deg) rotateX(60deg) rotateY(30deg); }
  100% { transform: rotate(360deg) rotateX(60deg) rotateY(30deg); }
}

.loader-text {
  color: #fff;
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 3px;
  opacity: 0.9;
  animation: pulseText 1.5s infinite;
}

@keyframes pulseText {
  0%, 100% { opacity: 0.5; transform: scale(0.98); }
  50% { opacity: 1; transform: scale(1.02); }
}

.loader-progress {
  width: 200px;
  height: 3px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  margin: 1.2rem auto 0;
  overflow: hidden;
}

.loader-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-color), #fff);
  border-radius: 4px;
  animation: progressBar 2s ease-in-out forwards;
}

@keyframes progressBar {
  0% { width: 0%; }
  20% { width: 25%; }
  50% { width: 55%; }
  80% { width: 80%; }
  100% { width: 100%; }
}

/* ===== HEADER ===== */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 5%;
  background: rgba(31, 74, 86, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  z-index: 1000;
  transition: var(--transition);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
}

header.scrolled {
  padding: 0.7rem 5%;
  background: rgba(31, 74, 86, 0.96);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  z-index: 1001;
}

.logo {
  height: 46px;
  border-radius: 10px;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.15));
  transition: transform 0.4s ease;
  will-change: transform;
}

.logo:hover {
  transform: scale(1.08) rotate(3deg);
}

.brand-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 1px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.header-nav {
  display: flex;
  gap: 0.8rem;
  align-items: center;
}

.header-nav .nav-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #fff;
  font-weight: 500;
  padding: 0.5rem 1.2rem;
  border-radius: 40px;
  transition: var(--transition);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid transparent;
  font-size: 0.95rem;
}

.header-nav .nav-link:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-2px) scale(1.02);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.social-links {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.social-links a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  transition: var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 1.1rem;
}

.social-links a:hover {
  transform: translateY(-3px) scale(1.08);
  background: rgba(255, 255, 255, 0.2);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 1001;
}

.mobile-menu-toggle span {
  width: 26px;
  height: 3px;
  background: #fff;
  border-radius: 4px;
  transition: var(--transition);
  transform-origin: center;
}

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
  z-index: 998;
  backdrop-filter: blur(4px);
}

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

/* ===== BANNER 3D ===== */
.banner-section {
  position: relative;
  margin-top: 80px;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 3rem 5%;
  background: linear-gradient(145deg, var(--primary-dark), var(--primary-color));
  overflow: hidden;
  perspective: 1000px;
}

.banner-3d-container {
  position: absolute;
  inset: 0;
  overflow: hidden;
  transform-style: preserve-3d;
}

.banner-shapes {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.banner-shape {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  animation: floatShape3D 14s infinite ease-in-out;
  transform-style: preserve-3d;
}

.shape-1 {
  width: 300px;
  height: 300px;
  top: -100px;
  left: -100px;
  animation-delay: 0s;
  background: radial-gradient(circle, rgba(255,255,255,0.08), transparent 70%);
}

.shape-2 {
  width: 200px;
  height: 200px;
  bottom: -80px;
  right: 5%;
  animation-delay: 3s;
  background: radial-gradient(circle, rgba(0,176,193,0.08), transparent 70%);
}

.shape-3 {
  width: 140px;
  height: 140px;
  top: 20%;
  right: 15%;
  animation-delay: 6s;
  background: radial-gradient(circle, rgba(255,255,255,0.05), transparent 70%);
}

@keyframes floatShape3D {
  0%, 100% { 
    transform: translateY(0px) rotate(0deg) scale(1) translateZ(0px);
  }
  25% { 
    transform: translateY(-40px) rotate(90deg) scale(1.1) translateZ(50px);
  }
  50% { 
    transform: translateY(20px) rotate(180deg) scale(0.9) translateZ(-30px);
  }
  75% { 
    transform: translateY(-20px) rotate(270deg) scale(1.05) translateZ(30px);
  }
}

.floating-elements {
  position: absolute;
  inset: 0;
  pointer-events: none;
  transform-style: preserve-3d;
}

.float-element {
  position: absolute;
  color: rgba(255, 255, 255, 0.12);
  font-size: 3rem;
  animation: floatElement 8s infinite ease-in-out;
}

.float-element.el-1 {
  top: 15%;
  left: 8%;
  animation-delay: 0s;
}

.float-element.el-2 {
  bottom: 20%;
  right: 10%;
  animation-delay: 2s;
  font-size: 2.5rem;
}

.float-element.el-3 {
  top: 50%;
  left: 12%;
  animation-delay: 4s;
  font-size: 2rem;
}

@keyframes floatElement {
  0%, 100% { 
    transform: translateY(0) rotate(0deg) translateZ(0px);
    opacity: 0.12;
  }
  50% { 
    transform: translateY(-30px) rotate(180deg) translateZ(80px);
    opacity: 0.25;
  }
}

.banner-content {
  position: relative;
  z-index: 1;
  max-width: 750px;
  transform: translateZ(20px);
}

.banner-title {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  color: #fff;
  font-weight: 800;
  margin-bottom: 0.5rem;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  letter-spacing: -0.5px;
  animation: fadeUp 0.8s ease-out;
}

.banner-subtitle {
  color: rgba(255, 255, 255, 0.92);
  font-size: clamp(1rem, 1.6vw, 1.3rem);
  margin-bottom: 1.5rem;
  animation: fadeUp 0.8s ease-out 0.15s both;
}

.banner-info {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: center;
  animation: fadeUp 0.8s ease-out 0.3s both;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  padding: 0.5rem 1.2rem;
  border-radius: 40px;
  font-size: 0.9rem;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: var(--transition);
}

.info-item:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-3px) scale(1.03);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== INFO NOTICE ===== */
.info-notice {
  max-width: 950px;
  margin: -1.2rem auto 0;
  background: var(--bg-white);
  border-left: 5px solid var(--accent-color);
  box-shadow: var(--shadow-md);
  border-radius: var(--radius);
  padding: 1rem 1.8rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  position: relative;
  z-index: 2;
  transition: var(--transition);
}

.info-notice:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.info-notice i {
  color: var(--accent-color);
  font-size: 1.4rem;
  flex-shrink: 0;
}

.info-notice p {
  color: var(--text-gray);
  font-size: 0.9rem;
}

.info-notice a {
  color: var(--primary-color);
  font-weight: 600;
  text-decoration: underline;
  transition: color 0.3s;
}

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

/* ===== MAIN CONTENT ===== */
.fauteuils-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 3rem 5% 1rem;
}

.section-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-header h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  color: var(--text-dark);
  margin-bottom: 0.4rem;
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--accent-color);
  border-radius: 4px;
}

.section-header p {
  color: var(--text-gray);
  margin-top: 0.8rem;
}

/* ===== GALLERY 3D ===== */
.fauteuils-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.fauteuil-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  transform-style: preserve-3d;
  perspective: 800px;
  will-change: transform;
}

.fauteuil-card:hover {
  transform: translateY(-8px) rotateX(2deg) rotateY(2deg) scale(1.01);
  box-shadow: var(--shadow-lg);
}

.fauteuil-card-image {
  width: 100%;
  aspect-ratio: 4 / 5;
  background: #e8e0dc;
  overflow: hidden;
  position: relative;
  transform-style: preserve-3d;
}

.fauteuil-card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 60%, rgba(0,0,0,0.05));
  pointer-events: none;
}

.fauteuil-card-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.6s ease;
  transform-style: preserve-3d;
}

.fauteuil-card:hover .fauteuil-card-image img {
  transform: scale(1.04) rotateY(2deg);
}

.fauteuil-card-info {
  padding: 1.2rem 1.3rem 1.5rem;
}

.fauteuil-card-info h3 {
  font-size: 1.15rem;
  color: var(--text-dark);
  margin-bottom: 0.3rem;
}

.fauteuil-card-info p {
  color: var(--text-gray);
  font-size: 0.9rem;
}

/* ===== COMPARISON SLIDER 3D ===== */
.comparison-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
}

.comparison-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  transform-style: preserve-3d;
  perspective: 800px;
}

.comparison-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px) rotateX(1deg);
}

.comparison-slider {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  cursor: ew-resize;
  user-select: none;
  background: #d5cfca;
  touch-action: none;
  transform-style: preserve-3d;
}

.comparison-slider img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
  will-change: clip-path;
}

.comparison-slider .img-before {
  z-index: 1;
}

.comparison-slider .img-after {
  z-index: 2;
  clip-path: inset(0 50% 0 0);
}

.comparison-label {
  position: absolute;
  top: 14px;
  padding: 0.3rem 1rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #fff;
  background: rgba(26, 59, 76, 0.7);
  border-radius: 30px;
  z-index: 3;
  pointer-events: none;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.label-before { left: 14px; }
.label-after { right: 14px; }

.comparison-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 3px;
  background: #fff;
  z-index: 4;
  transform: translateX(-50%);
  pointer-events: none;
  box-shadow: 0 0 16px rgba(0, 0, 0, 0.35);
  transition: left 0.05s ease;
}

.comparison-handle::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 44px;
  height: 44px;
  background: #fff;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: var(--shadow-md);
  border: 2px solid var(--primary-color);
}

.comparison-handle::before {
  content: '\f337';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 5;
  color: var(--primary-color);
  font-size: 1rem;
}

.comparison-card-info {
  padding: 1.2rem 1.3rem 1.5rem;
}

.comparison-card-info h3 {
  font-size: 1.15rem;
  color: var(--text-dark);
  margin-bottom: 0.3rem;
}

.comparison-card-info p {
  color: var(--text-gray);
  font-size: 0.9rem;
}

/* ===== CTA 3D ===== */
.cta-section {
  position: relative;
  background: linear-gradient(145deg, var(--primary-dark), var(--primary-color));
  padding: 4rem 5%;
  text-align: center;
  margin-top: 2.5rem;
  overflow: hidden;
  perspective: 800px;
}

.cta-3d-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  transform-style: preserve-3d;
}

.cta-float-shape {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  animation: ctaFloat 12s infinite ease-in-out;
  transform-style: preserve-3d;
}

.cta-float-shape.shape-2 {
  width: 400px;
  height: 400px;
  top: -200px;
  right: -100px;
  background: radial-gradient(circle, rgba(0,176,193,0.05), transparent 70%);
  animation-duration: 15s;
}

.cta-float-shape:not(.shape-2) {
  width: 300px;
  height: 300px;
  bottom: -150px;
  left: -100px;
  background: radial-gradient(circle, rgba(255,255,255,0.03), transparent 70%);
  animation-delay: 3s;
}

@keyframes ctaFloat {
  0%, 100% { 
    transform: translateY(0) rotate(0deg) translateZ(0px);
  }
  50% { 
    transform: translateY(-50px) rotate(180deg) translateZ(100px);
  }
}

.cta-content {
  max-width: 600px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  transform-style: preserve-3d;
}

.cta-icon {
  font-size: 3rem;
  color: #fff;
  opacity: 0.8;
  margin-bottom: 0.8rem;
  animation: ctaIconFloat 4s infinite ease-in-out;
  transform-style: preserve-3d;
}

@keyframes ctaIconFloat {
  0%, 100% { 
    transform: translateY(0) rotate(0deg) translateZ(0px);
  }
  50% { 
    transform: translateY(-10px) rotate(4deg) translateZ(30px);
  }
}

.cta-content h2 {
  color: #fff;
  font-size: clamp(1.5rem, 2.8vw, 2rem);
  margin-bottom: 0.6rem;
}

.cta-content p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 1.8rem;
  font-size: 1.05rem;
}

.cta-button.primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: #fff;
  color: var(--primary-color);
  font-weight: 600;
  padding: 0.9rem 2.4rem;
  border-radius: 50px;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  border: none;
  font-size: 1rem;
  cursor: pointer;
  transform-style: preserve-3d;
}

.cta-button.primary:hover {
  transform: translateY(-4px) scale(1.02) translateZ(20px);
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.25);
  background: #f8f8f8;
}

/* ===== FOOTER ===== */
footer {
  background: var(--text-dark);
  padding: 3rem 5% 1.5rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto 2rem;
}

.footer-brand h3 {
  color: #fff;
  font-size: 1.4rem;
  margin-bottom: 0.4rem;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.footer-social {
  display: flex;
  gap: 0.7rem;
}

.footer-social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  color: #fff;
  transition: var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-social a:hover {
  background: var(--accent-color);
  transform: translateY(-3px);
}

.footer-links-group h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 0.8rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--accent-color);
  transform: translateX(4px);
}

.footer-bottom {
  text-align: center;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

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

/* ===== ANIMATIONS D'ENTREE ===== */
.fauteuil-card,
.comparison-card {
  opacity: 0;
  transform: translateY(30px);
  animation: cardAppear 0.7s ease forwards;
}

.fauteuil-card:nth-child(1) { animation-delay: 0.05s; }
.fauteuil-card:nth-child(2) { animation-delay: 0.12s; }
.fauteuil-card:nth-child(3) { animation-delay: 0.19s; }
.fauteuil-card:nth-child(4) { animation-delay: 0.26s; }
.fauteuil-card:nth-child(5) { animation-delay: 0.33s; }
.fauteuil-card:nth-child(6) { animation-delay: 0.40s; }

.comparison-card:nth-child(1) { animation-delay: 0.1s; }
.comparison-card:nth-child(2) { animation-delay: 0.2s; }
.comparison-card:nth-child(3) { animation-delay: 0.3s; }

@keyframes cardAppear {
  to { opacity: 1; transform: translateY(0); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .header-nav .nav-link span { display: none; }
  .header-nav .nav-link { padding: 0.5rem 0.9rem; }
}

@media (max-width: 768px) {
  .mobile-menu-toggle { display: flex; }

  .header-nav {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: min(78vw, 340px);
    background: linear-gradient(160deg, var(--primary-dark), var(--primary-color));
    flex-direction: column;
    justify-content: center;
    gap: 1.2rem;
    padding: 2rem;
    transition: right 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    z-index: 999;
    box-shadow: -8px 0 40px rgba(0, 0, 0, 0.3);
  }

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

  .header-nav .nav-link {
    font-size: 1.2rem;
    padding: 0.8rem 1.5rem;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    width: 100%;
    justify-content: center;
  }

  .header-nav .nav-link span { display: inline; }

  .social-links a { width: 36px; height: 36px; font-size: 1rem; }
  .brand-name { font-size: 1.2rem; }
  .logo { height: 38px; }

  .banner-section {
    margin-top: 68px;
    min-height: 250px;
    padding: 2rem 4%;
  }

  .logo-3d-wrapper {
    width: 90px;
    height: 90px;
  }

  .info-notice {
    padding: 0.8rem 4%;
    margin: -0.8rem auto 0;
    border-radius: 14px;
    flex-wrap: wrap;
  }

  .info-notice p { font-size: 0.8rem; }

  .fauteuils-container { padding: 2rem 4% 0.5rem; }

  .comparison-list { grid-template-columns: 1fr; gap: 1.8rem; }
  .fauteuils-grid { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.2rem; }

  .comparison-handle::after { width: 36px; height: 36px; }

  .cta-section { padding: 3rem 4%; }

  .footer-content { grid-template-columns: 1fr 1fr; gap: 1.5rem; }

  .float-element {
    display: none;
  }
}

@media (max-width: 480px) {
  header { padding: 0.8rem 4%; }
  .brand-name { font-size: 1rem; }
  .logo { height: 32px; }

  .header-nav .nav-link { font-size: 1rem; padding: 0.6rem 1rem; }
  .social-links a { width: 32px; height: 32px; font-size: 0.85rem; }

  .banner-section {
    min-height: 200px;
    padding: 1.5rem 4%;
    margin-top: 56px;
  }

  .banner-title { font-size: 1.6rem; }
  .banner-info { gap: 0.5rem; }
  .info-item { font-size: 0.75rem; padding: 0.3rem 0.8rem; }

  .logo-3d-wrapper {
    width: 70px;
    height: 70px;
  }

  .loader-progress {
    width: 150px;
  }

  .fauteuils-grid { grid-template-columns: 1fr 1fr; gap: 0.8rem; }
  .comparison-list { grid-template-columns: 1fr; }

  .fauteuil-card-info h3 { font-size: 1rem; }
  .fauteuil-card-info p { font-size: 0.8rem; }
  .comparison-card-info h3 { font-size: 1rem; }

  .footer-content { grid-template-columns: 1fr; gap: 1.2rem; text-align: center; }
  .footer-social { justify-content: center; }

  .info-notice { flex-direction: column; text-align: center; gap: 0.4rem; }
  .cta-button.primary { padding: 0.7rem 1.6rem; font-size: 0.9rem; }

  .comparison-handle::after { width: 30px; height: 30px; }
  .comparison-handle::before { font-size: 0.8rem; }

  .cta-float-shape:not(.shape-2),
  .cta-float-shape.shape-2 {
    width: 150px;
    height: 150px;
  }
}

@media (max-width: 380px) {
  .fauteuils-grid { grid-template-columns: 1fr; }
  .brand-name { display: none; }
  .header-nav { width: 85vw; }
}