/* ========================================
   HELIOS SOLAIRE - Feuille de style
   ======================================== */

:root {
  --primary: #ff8a00;
  --primary-dark: #e97300;
  --primary-light: #ffb347;
  --secondary: #0a2540;
  --secondary-light: #1a3d66;
  --accent: #00d4a8;
  --bg: #ffffff;
  --bg-soft: #f7f9fc;
  --bg-card: #ffffff;
  --text: #0a2540;
  --text-muted: #5a6b82;
  --border: #e6ecf4;
  --shadow-sm: 0 2px 8px rgba(10, 37, 64, 0.06);
  --shadow-md: 0 8px 24px rgba(10, 37, 64, 0.08);
  --shadow-lg: 0 20px 60px rgba(10, 37, 64, 0.12);
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 24px;
  --gradient-warm: linear-gradient(135deg, #ff8a00 0%, #ffb347 100%);
  --gradient-cool: linear-gradient(135deg, #0a2540 0%, #1a3d66 100%);
  --gradient-hero: linear-gradient(135deg, #fff7ec 0%, #ffe8cc 40%, #ffd8a8 100%);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}

html { overflow-x: hidden; max-width: 100vw; }

img, svg { max-width: 100%; }
img { display: block; }
a { color: inherit; text-decoration: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============ TYPO ============ */
h1, h2, h3, h4 {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--secondary);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); margin-bottom: 1rem; }
h3 { font-size: 1.3rem; margin-bottom: 0.6rem; }

.eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary);
  margin-bottom: 1rem;
  padding: 6px 14px;
  background: rgba(255, 138, 0, 0.1);
  border-radius: 50px;
}

/* ============ HEADER ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}

.site-header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--secondary);
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--gradient-warm);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.logo-mark::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.5), transparent 60%);
}

.logo-mark svg { position: relative; z-index: 1; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 8px;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text);
  transition: all var(--transition);
  position: relative;
}

.nav-links a:hover {
  background: var(--bg-soft);
  color: var(--primary);
}

.nav-links a.active {
  color: var(--primary);
  background: rgba(255, 138, 0, 0.08);
}

.nav-cta {
  margin-left: 12px;
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-warm);
  color: white;
  box-shadow: 0 6px 20px rgba(255, 138, 0, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(255, 138, 0, 0.45);
}

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

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

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

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

.btn-sm { padding: 10px 20px; font-size: 0.9rem; }
.btn-lg { padding: 18px 36px; font-size: 1.1rem; }

/* ============ MOBILE MENU ============ */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  width: 44px;
  height: 44px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--secondary);
  border-radius: 2px;
  transition: all var(--transition);
}

.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 140px 0 80px;
  background: var(--gradient-hero);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 179, 71, 0.4), transparent 70%);
  border-radius: 50%;
  animation: floatSoft 8s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -300px;
  left: -200px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(0, 212, 168, 0.15), transparent 70%);
  border-radius: 50%;
  animation: floatSoft 10s ease-in-out infinite reverse;
}

@keyframes floatSoft {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -20px); }
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero h1 span.highlight {
  background: var(--gradient-warm);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin: 24px 0 32px;
  max-width: 550px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}

.hero-stat strong {
  display: block;
  font-family: 'Poppins', sans-serif;
  font-size: 2rem;
  color: var(--secondary);
  font-weight: 700;
}

.hero-stat span {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ============ CALCULATOR CARD ============ */
.calc-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.calc-card::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: var(--gradient-warm);
  border-radius: var(--radius-lg);
  z-index: -1;
  opacity: 0.2;
  filter: blur(20px);
}

.calc-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--secondary);
  margin-bottom: 8px;
}

.calc-title .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(0, 212, 168, 0.2);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(0, 212, 168, 0.2); }
  50% { box-shadow: 0 0 0 8px rgba(0, 212, 168, 0.1); }
}

.calc-sub {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.calc-field {
  margin-bottom: 20px;
}

.calc-field label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 500;
  font-size: 0.9rem;
  margin-bottom: 10px;
  color: var(--text);
}

.calc-field .value {
  font-weight: 700;
  color: var(--primary);
  font-size: 1rem;
}

.calc-field input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: var(--border);
  border-radius: 10px;
  outline: none;
}

.calc-field input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: white;
  border: 3px solid var(--primary);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(255, 138, 0, 0.4);
  transition: transform 0.2s;
}

.calc-field input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.15); }

.calc-field input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: white;
  border: 3px solid var(--primary);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(255, 138, 0, 0.4);
}

.calc-choices {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.calc-choices button {
  padding: 10px 6px;
  background: var(--bg-soft);
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--text);
  transition: all var(--transition);
  word-break: break-word;
  line-height: 1.25;
  text-align: center;
  min-height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.calc-choices button:hover { background: white; border-color: var(--border); }
.calc-choices button.active {
  background: white;
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 2px 8px rgba(255, 138, 0, 0.15);
}

.calc-result {
  margin-top: 24px;
  padding: 20px;
  background: var(--gradient-cool);
  border-radius: var(--radius);
  color: white;
  position: relative;
  overflow: hidden;
}

.calc-result::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(255, 138, 0, 0.3), transparent 70%);
  border-radius: 50%;
}

.calc-result-label {
  font-size: 0.85rem;
  opacity: 0.8;
  margin-bottom: 4px;
  position: relative;
}

.calc-result-value {
  font-family: 'Poppins', sans-serif;
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 4px;
  position: relative;
}

.calc-result-value .accent { color: var(--primary-light); }

.calc-result small {
  font-size: 0.85rem;
  opacity: 0.8;
  position: relative;
}

.calc-card .btn { width: 100%; margin-top: 16px; }

/* ============ SECTIONS ============ */
section { padding: 100px 0; }

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}

.section-head p {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-top: 12px;
}

/* ============ LOGOS TRUST ============ */
.trust-band {
  padding: 50px 0;
  background: white;
  border-bottom: 1px solid var(--border);
}

.trust-band .label {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 24px;
}

.trust-logos {
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
  gap: 40px;
  opacity: 0.7;
}

.trust-logos .logo-item {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-muted);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ============ BENEFITS ============ */
.benefits { background: var(--bg-soft); }

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.benefit-card {
  background: white;
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.benefit-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background: var(--gradient-warm);
  transition: height var(--transition);
}

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

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

.benefit-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(255, 138, 0, 0.15), rgba(255, 179, 71, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--primary);
}

.benefit-card p { color: var(--text-muted); font-size: 0.96rem; }

/* ============ PROCESS ============ */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(to right, var(--border), var(--primary) 30%, var(--primary) 70%, var(--border));
  z-index: 0;
}

.step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: white;
  border: 2px solid var(--primary);
  color: var(--primary);
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  margin-bottom: 20px;
  box-shadow: 0 4px 12px rgba(255, 138, 0, 0.2);
}

.step h3 { font-size: 1.1rem; margin-bottom: 8px; }
.step p { color: var(--text-muted); font-size: 0.92rem; }

/* ============ TESTIMONIALS ============ */
.testimonials { background: var(--bg-soft); }

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.testimonial {
  background: white;
  padding: 32px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  position: relative;
}

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

.stars { color: #ffb400; margin-bottom: 12px; letter-spacing: 2px; }

.testimonial-text {
  font-size: 1rem;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 20px;
}

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

.avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-warm);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: 'Poppins', sans-serif;
}

.testimonial-author strong { display: block; font-size: 0.95rem; }
.testimonial-author span { font-size: 0.85rem; color: var(--text-muted); }

/* ============ CTA BAND ============ */
.cta-band {
  background: var(--gradient-cool);
  color: white;
  position: relative;
  overflow: hidden;
}

.cta-band::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 138, 0, 0.3), transparent 60%);
  border-radius: 50%;
}

.cta-band::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 212, 168, 0.25), transparent 60%);
  border-radius: 50%;
}

.cta-band .container { position: relative; z-index: 1; text-align: center; }
.cta-band h2 { color: white; }
.cta-band p { opacity: 0.9; font-size: 1.15rem; max-width: 620px; margin: 16px auto 32px; }

/* ============ BLOG / ARTICLES ============ */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}

.article-card {
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

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

.article-visual {
  height: 180px;
  position: relative;
  overflow: hidden;
}

.article-visual.v1 { background: linear-gradient(135deg, #ff8a00, #ffb347); }
.article-visual.v2 { background: linear-gradient(135deg, #0a2540, #1a3d66); }
.article-visual.v3 { background: linear-gradient(135deg, #00d4a8, #34e6c1); }
.article-visual.v4 { background: linear-gradient(135deg, #7b4dff, #a788ff); }
.article-visual.v5 { background: linear-gradient(135deg, #ff3d71, #ff7a5c); }
.article-visual.v6 { background: linear-gradient(135deg, #ffc107, #ffeb3b); }

.article-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(255,255,255,0.25), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,0.15), transparent 50%);
}

.article-visual svg {
  position: absolute;
  bottom: -20px;
  right: -20px;
  opacity: 0.5;
}

.article-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--secondary);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.article-body {
  padding: 24px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.article-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.article-body h3 { font-size: 1.2rem; margin-bottom: 10px; }
.article-body h3 a { color: var(--secondary); transition: color var(--transition); }
.article-body h3 a:hover { color: var(--primary); }
.article-body p { color: var(--text-muted); font-size: 0.94rem; margin-bottom: 16px; flex-grow: 1; }

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  transition: gap var(--transition);
}

.read-more:hover { gap: 12px; }

/* ============ ARTICLE SINGLE ============ */
.article-hero {
  padding: 140px 0 60px;
  background: var(--bg-soft);
}

.article-breadcrumb {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.article-breadcrumb a { color: var(--primary); }

.article-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 20px;
  max-width: 820px;
}

.article-lead-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.article-content {
  max-width: 780px;
  margin: 0 auto;
  padding: 60px 24px 80px;
}

.article-content h2 { margin: 40px 0 16px; }
.article-content h3 { margin: 32px 0 12px; font-size: 1.4rem; }
.article-content p { margin-bottom: 18px; font-size: 1.05rem; line-height: 1.8; color: var(--text); }
.article-content ul, .article-content ol { margin: 16px 0 24px 28px; }
.article-content li { margin-bottom: 10px; line-height: 1.7; }

.article-content .callout {
  background: linear-gradient(135deg, rgba(255, 138, 0, 0.08), rgba(0, 212, 168, 0.05));
  border-left: 4px solid var(--primary);
  padding: 20px 24px;
  border-radius: var(--radius-sm);
  margin: 28px 0;
}
.article-content .callout strong { color: var(--primary); }

.article-content blockquote {
  border-left: 4px solid var(--primary);
  padding-left: 20px;
  font-style: italic;
  color: var(--text-muted);
  margin: 24px 0;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  background: white;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.article-content th, .article-content td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.article-content th {
  background: var(--secondary);
  color: white;
  font-weight: 600;
}

.article-content tr:last-child td { border-bottom: none; }

/* ============ FORMS / DEVIS ============ */
.devis-hero {
  padding: 140px 0 40px;
  background: var(--gradient-hero);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.form-wrap {
  max-width: 760px;
  margin: -40px auto 80px;
  position: relative;
  z-index: 2;
}

.form-card {
  background: white;
  padding: 48px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.progress {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
  gap: 8px;
}

.progress-step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  position: relative;
}

.progress-step::after {
  content: '';
  position: absolute;
  top: 16px;
  left: 50%;
  width: calc(100% - 20px);
  height: 2px;
  background: var(--border);
  z-index: 0;
  margin-left: 14px;
}

.progress-step:last-child::after { display: none; }

.progress-step.done::after, .progress-step.active::after {
  background: var(--primary);
}

.progress-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--border);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  z-index: 1;
  transition: all var(--transition);
}

.progress-step.active .progress-circle {
  background: var(--primary);
  color: white;
  box-shadow: 0 0 0 6px rgba(255, 138, 0, 0.2);
}

.progress-step.done .progress-circle {
  background: var(--accent);
  color: white;
}

.progress-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  text-align: center;
}

.progress-step.active .progress-label { color: var(--primary); }

.form-step { display: none; animation: fadeInUp 0.4s ease both; }
.form-step.active { display: block; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.form-step h2 { text-align: center; margin-bottom: 6px; }
.form-step .step-sub {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.field label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--secondary);
}

.field input, .field select, .field textarea {
  padding: 14px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  transition: all var(--transition);
  background: white;
  color: var(--text);
}

.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(255, 138, 0, 0.1);
}

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

.option-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}

.option-tile {
  background: white;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 14px;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 130px;
}

.option-tile:hover { border-color: var(--primary-light); transform: translateY(-2px); }

.option-tile.selected {
  border-color: var(--primary);
  background: linear-gradient(135deg, rgba(255, 138, 0, 0.05), rgba(255, 179, 71, 0.05));
  box-shadow: 0 4px 16px rgba(255, 138, 0, 0.15);
}

.option-tile svg {
  display: block;
  margin: 0 auto 10px;
  color: var(--primary);
  flex-shrink: 0;
}
.option-tile strong {
  display: block;
  font-size: 0.95rem;
  color: var(--secondary);
  word-wrap: break-word;
  overflow-wrap: break-word;
  hyphens: auto;
  line-height: 1.3;
  text-align: center;
}
.option-tile span {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  word-wrap: break-word;
  overflow-wrap: break-word;
  line-height: 1.3;
  margin-top: 4px;
  text-align: center;
}

.form-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 32px;
}

.form-nav .btn-back {
  background: white;
  color: var(--text-muted);
  border: 2px solid var(--border);
}

.form-nav .btn-back:hover { color: var(--text); border-color: var(--text-muted); }

.consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 16px;
  line-height: 1.5;
}

.consent input { margin-top: 3px; accent-color: var(--primary); }

.form-success {
  text-align: center;
  padding: 40px 0;
  display: none;
}

.form-success.show { display: block; animation: fadeInUp 0.4s ease both; }

.form-success .check-circle {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #34e6c1);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 2rem;
  box-shadow: 0 8px 24px rgba(0, 212, 168, 0.3);
}

.form-success h2 { margin-bottom: 12px; }
.form-success p { color: var(--text-muted); max-width: 500px; margin: 0 auto 24px; }

/* Features around form */
.devis-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.feat-mini {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.feat-mini .icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: linear-gradient(135deg, rgba(255, 138, 0, 0.15), rgba(255, 179, 71, 0.15));
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

.feat-mini strong { display: block; font-size: 0.95rem; color: var(--secondary); }
.feat-mini span { font-size: 0.82rem; color: var(--text-muted); }

/* ============ FAQ ============ */
.faq-hero {
  padding: 140px 0 60px;
  background: var(--bg-soft);
  text-align: center;
}

.faq-search {
  max-width: 520px;
  margin: 30px auto 0;
  position: relative;
}

.faq-search input {
  width: 100%;
  padding: 16px 20px 16px 52px;
  border: 2px solid var(--border);
  border-radius: 50px;
  background: white;
  font-size: 1rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.faq-search input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(255, 138, 0, 0.1);
}

.faq-search svg {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

.faq-categories {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 40px 0 0;
}

.faq-cat {
  padding: 8px 18px;
  border-radius: 50px;
  background: white;
  border: 2px solid var(--border);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.faq-cat:hover { border-color: var(--primary-light); color: var(--primary); }
.faq-cat.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  padding: 60px 24px 80px;
}

.faq-item {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: all var(--transition);
}

.faq-item:hover { border-color: var(--primary-light); }
.faq-item.open { border-color: var(--primary); box-shadow: var(--shadow-md); }

.faq-q {
  width: 100%;
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--secondary);
  transition: color var(--transition);
}

.faq-q:hover { color: var(--primary); }

.faq-toggle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  flex-shrink: 0;
  color: var(--primary);
}

.faq-item.open .faq-toggle {
  background: var(--primary);
  color: white;
  transform: rotate(45deg);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-item.open .faq-a { max-height: 400px; }

.faq-a-inner {
  padding: 0 24px 24px;
  color: var(--text-muted);
  line-height: 1.7;
}

.faq-a-inner ul { margin: 10px 0 0 22px; }

.faq-hidden { display: none; }

/* ============ FOOTER ============ */
.site-footer {
  background: var(--secondary);
  color: #b8c7dc;
  padding: 80px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.site-footer h4 {
  color: white;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}

.footer-brand .logo { color: white; margin-bottom: 16px; }
.footer-brand p { font-size: 0.92rem; max-width: 320px; margin-bottom: 20px; }

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

.socials a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.socials a:hover { background: var(--primary); color: white; transform: translateY(-2px); }

.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  color: #b8c7dc;
  font-size: 0.92rem;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--primary-light); }

.footer-contact li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 12px;
  font-size: 0.92rem;
}

.footer-contact svg { color: var(--primary-light); flex-shrink: 0; margin-top: 2px; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.85rem;
}

.footer-bottom a { color: #b8c7dc; }
.footer-bottom a:hover { color: var(--primary-light); }

/* ============ FLOATING CTA ============ */
.floating-cta {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 500;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  background: var(--gradient-warm);
  color: white;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  box-shadow: 0 8px 24px rgba(255, 138, 0, 0.4);
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition);
  pointer-events: none;
}

.floating-cta.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.floating-cta:hover { transform: translateY(-3px); box-shadow: 0 12px 32px rgba(255, 138, 0, 0.5); }

/* ============ ANIMATIONS ============ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ============ INTERACTIVE FRANCE MAP ============ */
.map-section {
  padding: 100px 0;
  background: linear-gradient(180deg, #ffffff 0%, #fff8ef 100%);
  position: relative;
}

.map-wrapper {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 50px;
  align-items: center;
  margin-top: 40px;
}

.france-map {
  width: 100%;
  max-width: 560px;
  height: auto;
  margin: 0 auto;
  display: block;
  filter: drop-shadow(0 20px 40px rgba(10, 37, 64, 0.1));
}

.france-map .region {
  fill: #e6ecf4;
  stroke: #ffffff;
  stroke-width: 2;
  transition: fill 0.25s ease, transform 0.25s ease;
  cursor: default;
  transform-origin: center;
  transform-box: fill-box;
}

.france-map .region.active {
  fill: url(#regionGradient);
  cursor: pointer;
}

.france-map .region.active:hover {
  fill: var(--primary-dark);
  transform: scale(1.02);
}

.france-map .region-label {
  font-family: 'Poppins', sans-serif;
  font-size: 11px;
  font-weight: 600;
  fill: #ffffff;
  pointer-events: none;
  text-anchor: middle;
}

.france-map .region-label-sub {
  font-family: 'Inter', sans-serif;
  font-size: 8px;
  font-weight: 500;
  fill: rgba(255, 255, 255, 0.9);
  pointer-events: none;
  text-anchor: middle;
}

.france-map .region-inactive-label {
  font-family: 'Inter', sans-serif;
  font-size: 9px;
  font-weight: 500;
  fill: #8898ac;
  pointer-events: none;
  text-anchor: middle;
}

.france-map .sun-icon circle { fill: var(--primary); }
.france-map .sun-icon line { stroke: var(--primary); stroke-width: 1.8; stroke-linecap: round; }

.map-legend {
  background: white;
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}

.map-legend h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
  color: var(--secondary);
}

.map-legend > p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.map-legend ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.map-legend li a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius);
  background: var(--bg-soft);
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.92rem;
  transition: all var(--transition);
  border: 1px solid transparent;
}

.map-legend li a:hover {
  background: rgba(255, 138, 0, 0.08);
  border-color: var(--primary-light);
  transform: translateX(4px);
}

.map-legend li a .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
}

.map-legend li a .kwh {
  margin-left: auto;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
}

.map-legend li a .arrow {
  color: var(--primary);
  margin-left: 4px;
  transition: transform var(--transition);
}

.map-legend li a:hover .arrow { transform: translateX(4px); }

/* ============ RESPONSIVE ============ */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .map-wrapper { grid-template-columns: 1fr; gap: 30px; }
  .france-map { max-width: 420px; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .process-steps::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }

  .menu-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: white;
    padding: 20px;
    border-top: 1px solid var(--border);
    transform: translateX(100%);
    transition: transform var(--transition);
    box-shadow: var(--shadow-md);
    max-height: calc(100vh - 70px);
    overflow-y: auto;
  }

  .nav-links.open { transform: translateX(0); }
  .nav-links a { width: 100%; padding: 14px; border-radius: 0; border-bottom: 1px solid var(--border); }
  .nav-cta { margin: 12px 0 0; width: 100%; }
}

@media (max-width: 640px) {
  section { padding: 50px 0; }
  .container { padding: 0 16px; max-width: 100%; }
  .hero { padding: 90px 0 40px; min-height: auto; }
  .hero h1 {
    font-size: 1.85rem !important;
    line-height: 1.2;
    letter-spacing: -0.01em;
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
    max-width: 100%;
  }
  .hero-grid { gap: 24px; }
  .hero-subtitle {
    font-size: 0.95rem;
    margin: 14px 0 20px;
    max-width: 100%;
    word-wrap: break-word;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
    gap: 10px;
    margin-bottom: 28px;
  }
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
    white-space: normal;
    padding: 14px 18px;
    font-size: 0.98rem;
  }
  .hero-actions .btn-lg { padding: 14px 18px; font-size: 0.98rem; }
  .eyebrow { font-size: 0.78rem; padding: 5px 12px; }
  .trust-band { padding: 30px 0; }
  .trust-logos { gap: 18px; }
  .trust-logos .logo-item { font-size: 0.82rem; }
  .process-steps { grid-template-columns: 1fr; gap: 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .form-card { padding: 28px 20px; }
  .form-row { grid-template-columns: 1fr; gap: 10px; }
  .hero-stats { gap: 20px; justify-content: space-between; width: 100%; }
  .hero-stat strong { font-size: 1.5rem; }
  .hero-stat span { font-size: 0.8rem; }
  .progress-label { display: none; }
  .progress-step::after { top: 16px; }
  .calc-card { padding: 20px; }
  .calc-title { font-size: 1.05rem; }
  .calc-result-value { font-size: 1.8rem; }
  .map-section { padding: 60px 0; }
  .map-legend { padding: 22px; }
  .map-legend li a { font-size: 0.88rem; padding: 10px 12px; }
  .france-map .region-label { font-size: 13px; }
  .france-map .region-label-sub { font-size: 10px; }
  .floating-cta { bottom: 16px; right: 16px; padding: 12px 18px; font-size: 0.88rem; }

  .container { padding: 0 16px; }
  .benefits-grid, .blog-grid, .testimonial-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .benefit-card, .testimonial, .article-card { padding: 24px; }
  .form-nav { flex-wrap: wrap; gap: 10px; }
  .form-nav .btn { width: 100%; justify-content: center; }

  /* Option tiles on mobile — max 2 columns */
  .option-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .option-tile { padding: 16px 10px; }
  .option-tile strong { font-size: 0.88rem; }
  .option-tile span { font-size: 0.75rem; }
  .option-tile svg { width: 26px; height: 26px; }

  /* Calculator orientation buttons */
  .calc-choices { grid-template-columns: 1fr; gap: 6px; }
  .calc-choices button { padding: 12px; font-size: 0.9rem; }

  /* Article tables scroll on mobile */
  .article-content { padding: 40px 16px 60px; }
  .article-content { overflow-x: hidden; }
  .article-content table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
    font-size: 0.88rem;
  }
  .article-title { font-size: 1.6rem; }
  .article-hero { padding: 110px 0 40px; }

  /* FAQ */
  .faq-hero { padding: 110px 0 40px; }
  .faq-q { padding: 16px 18px; font-size: 0.95rem; }
  .faq-a-inner { padding: 0 18px 18px; font-size: 0.92rem; }
  .faq-list { padding: 40px 16px 60px; }
  .faq-categories { gap: 6px; }
  .faq-cat { padding: 6px 12px; font-size: 0.82rem; }

  /* Devis features */
  .devis-features { grid-template-columns: 1fr; gap: 12px; }

  /* Buttons */
  .btn-lg { padding: 14px 22px; font-size: 1rem; }
  .btn { font-size: 0.95rem; padding: 12px 22px; }

  /* Section heading */
  .section-head { margin-bottom: 40px; }
  .section-head p { font-size: 0.98rem; }
  h2 { font-size: 1.6rem !important; }
}

/* Very small screens (phones < 400px) */
@media (max-width: 400px) {
  .container { padding: 0 14px; }
  h1 { font-size: 1.65rem !important; }
  h2 { font-size: 1.35rem !important; }
  .hero { padding: 84px 0 34px; }
  .hero h1 { font-size: 1.65rem !important; }
  .hero-subtitle { font-size: 0.92rem; }
  .hero-actions .btn,
  .hero-actions .btn-lg { padding: 13px 14px; font-size: 0.92rem; gap: 6px; }
  .hero-actions .btn svg { width: 16px; height: 16px; flex-shrink: 0; }
  .eyebrow { font-size: 0.72rem; padding: 4px 10px; letter-spacing: 0.08em; }
  .logo { font-size: 1rem; }
  .logo-mark { width: 32px; height: 32px; }
  .calc-result-value { font-size: 1.5rem; }
  .nav { padding: 12px 0; }
  .option-grid { grid-template-columns: 1fr; }
  .form-card { padding: 22px 16px; }
  .progress-circle { width: 30px; height: 30px; font-size: 0.8rem; }
  .progress-step::after { top: 14px; }
  .article-title { font-size: 1.4rem; }
  .floating-cta span { display: none; }
  .hero-stats { gap: 10px; flex-wrap: wrap; }
  .hero-stat strong { font-size: 1.25rem; }
  .hero-stat span { font-size: 0.72rem; }
  .france-map { max-width: 320px; }
}