/* ============================================================
   Lenergy SOLAR — Styles pages internes
   ============================================================ */

/* ---- Page Hero ---- */
.page-hero {
  padding: 160px 0 80px;
  text-align: center;
  background: linear-gradient(180deg, #2d1a00 0%, #1a1a0f 100%);
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(245,158,11,0.15) 0%, transparent 70%);
}
.page-hero .section-tag { margin-bottom: 16px; }
.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  color: white;
  margin-bottom: 20px;
  position: relative;
}
.page-hero p {
  font-size: 1.15rem;
  max-width: 600px;
  margin: 0 auto;
  color: rgba(255,255,255,0.7);
  position: relative;
}
.accent { color: var(--color-solar); }

/* ---- Tech page ---- */
.tech-section { padding: 100px 0; }
.tech-section.alt-bg { background: #f7f5ef; }

.tech-intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
  margin-bottom: 80px;
}
.tech-intro-content h2 { font-size: 2rem; font-weight: 700; color: var(--color-dark); margin-bottom: 20px; }
.tech-intro-content p { margin-bottom: 16px; line-height: 1.8; }

.layers-diagram {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
}
.layer-title { font-size: 0.85rem; font-weight: 700; color: var(--color-text); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 20px; text-align: center; }
.layer {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
.layer-bar {
  height: 36px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  padding-left: 12px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-dark);
  flex: 1;
}
.layer-pct { font-size: 0.85rem; font-weight: 700; color: var(--color-text-dark); min-width: 40px; text-align: right; }
.layer-1 .layer-bar { background: rgba(245,158,11,0.9); width: 100%; }
.layer-2 .layer-bar { background: rgba(245,158,11,0.6); }
.layer-3 .layer-bar { background: rgba(245,158,11,0.35); }
.layer-4 .layer-bar { background: rgba(245,158,11,0.15); color: var(--color-text); }

/* Innovation cards */
.innovations-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.innovation-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
}
.innovation-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.1); border-color: rgba(245,158,11,0.4); }
.innovation-icon { font-size: 2rem; margin-bottom: 16px; }
.innovation-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--color-dark); margin-bottom: 10px; }
.innovation-card p { font-size: 0.9rem; color: var(--color-text); line-height: 1.65; }

/* ---- Projets ---- */
.projects-section { padding: 100px 0; }
.projects-section.alt-bg { background: #f7f5ef; }

.project-full-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 32px;
  box-shadow: var(--shadow-card);
  display: grid;
  grid-template-columns: 1fr 1.5fr;
}
.project-full-image { min-height: 300px; position: relative; }
.project-full-content { padding: 40px; }
.project-full-content h2 { font-size: 1.6rem; font-weight: 700; color: var(--color-dark); margin-bottom: 8px; }
.project-meta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
.project-stat { background: rgba(245,158,11,0.08); border: 1px solid rgba(245,158,11,0.2); border-radius: 8px; padding: 8px 16px; }
.project-stat span { display: block; font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-text); }
.project-stat strong { font-size: 1.1rem; color: var(--color-solar-d); }
.project-full-content p { color: var(--color-text); line-height: 1.8; margin-bottom: 20px; }

/* ---- Centrales ---- */
.centrales-section { padding: 100px 0; }
.centrales-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.centrale-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
}
.centrale-card:hover { transform: translateY(-4px); border-color: rgba(245,158,11,0.4); }
.centrale-icon { font-size: 2.5rem; margin-bottom: 20px; }
.centrale-card h3 { font-size: 1.15rem; font-weight: 700; color: var(--color-dark); margin-bottom: 10px; }
.centrale-card p { font-size: 0.9rem; color: var(--color-text); line-height: 1.65; margin-bottom: 16px; }
.centrale-range { font-size: 0.85rem; font-weight: 600; color: var(--color-solar-d); }

/* ---- À propos ---- */
.about-section { padding: 100px 0; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.about-content h2 { font-size: 2rem; font-weight: 700; color: var(--color-dark); margin-bottom: 20px; }
.about-content p { margin-bottom: 20px; line-height: 1.8; color: var(--color-text); }
.group-entity { display: flex; gap: 12px; margin-bottom: 16px; align-items: flex-start; }
.entity-dot { width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0; margin-top: 5px; }
.entity-dot.holding { background: var(--color-solar-l); }
.entity-dot.solar { background: var(--color-solar); }
.entity-dot.smart { background: var(--color-sky); }
.group-entity strong { font-size: 0.95rem; color: var(--color-dark); display: block; margin-bottom: 2px; }
.group-entity p { font-size: 0.82rem; color: var(--color-text); }
.group-card { background: white; border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow-card); margin-bottom: 20px; }
.group-card h3 { font-size: 1rem; font-weight: 700; color: var(--color-dark); margin-bottom: 16px; }

/* ---- Contact ---- */
.contact-section { padding: 100px 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 60px; }
.contact-info h2 { font-size: 2rem; font-weight: 700; color: var(--color-dark); margin-bottom: 20px; }
.contact-info p { margin-bottom: 32px; line-height: 1.8; color: var(--color-text); }
.contact-item { display: flex; gap: 16px; margin-bottom: 24px; align-items: flex-start; }
.contact-item-icon { width: 40px; height: 40px; background: rgba(245,158,11,0.1); border-radius: 10px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 1.1rem; }
.contact-item h4 { font-size: 0.85rem; font-weight: 700; color: var(--color-text); margin-bottom: 2px; }
.contact-item p, .contact-item a { color: var(--color-dark); font-weight: 500; }
.contact-item a:hover { color: var(--color-solar-d); }
.contact-form { background: white; border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 40px; box-shadow: var(--shadow-card); }
.contact-form h3 { font-size: 1.3rem; font-weight: 700; color: var(--color-dark); margin-bottom: 24px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--color-text-dark); margin-bottom: 8px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 14px 18px;
  background: var(--color-cream);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-dark);
  font-family: var(--font-main);
  font-size: 0.95rem;
  transition: border-color var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--color-solar);
  box-shadow: 0 0 0 3px rgba(245,158,11,0.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .tech-intro-grid { grid-template-columns: 1fr; }
  .innovations-grid { grid-template-columns: 1fr 1fr; }
  .project-full-card { grid-template-columns: 1fr; }
  .project-full-image { min-height: 200px; }
  .centrales-grid { grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .innovations-grid { grid-template-columns: 1fr; }
  .centrales-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}