/* ==========================================================
   LG ELEC — Feuille de style principale
   Design premium clair, sections nettes et structurées
   ========================================================== */

/* === Variables globales === */
:root {
  --bg: #e8ebee;          /* gris clair bleuté */
  --card: #ffffff;        /* fond cartes/blocs */
  --card-alt: #f4f5f7;    /* variante douce pour alterner les sections */
  --ink: #1b1e23;
  --ink-soft: #3b4047;
  --muted: #6b7280;
  --brand: #f7c948;
  --brand-soft: #ffe066;
  --success: #22c55e;
  --danger: #ef4444;
  --radius: 16px;
  --shadow: 0 8px 24px rgba(0,0,0,0.08);
  --transition: 0.25s ease;
  --menu-width: 250px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, sans-serif;
}

/* === Base === */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html,
body {
  height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  scroll-behavior: smooth;
}
a {
  color: var(--brand);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--brand-soft);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ==========================================================
   HEADER
   ========================================================== */

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  z-index: 100;
}

/* Logo header */
.header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-mini {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-mini img {
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  padding: 6px;
  box-shadow: 0 0 12px rgba(247, 201, 72, 0.35);
  transition: transform 0.3s ease;
}
.brand-mini img:hover {
  transform: scale(1.05);
}
.brand-mini strong {
  font-weight: 700;
  font-size: 1.05rem;
}

/* Bouton menu */
.menu-toggle {
  width: 42px;
  height: 42px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 50%;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}
.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  background: var(--brand);
  border-radius: 2px;
  position: relative;
  transition: var(--transition);
}
.menu-toggle span::before {
  position: absolute;
  top: -6px;
}
.menu-toggle span::after {
  position: absolute;
  top: 6px;
}
body.menu-open .menu-toggle span {
  background: transparent;
}
body.menu-open .menu-toggle span::before {
  transform: rotate(45deg);
  top: 0;
}
body.menu-open .menu-toggle span::after {
  transform: rotate(-45deg);
  top: 0;
}

/* Boutons principaux */
.cta-header,
.btn-primary {
  display: inline-block;
  padding: 10px 22px;
  border-radius: 999px;
  background: var(--brand);
  color: #111827;
  font-weight: 700;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 0 15px rgba(247, 201, 72, 0.25);
}
.cta-header:hover,
.btn-primary:hover {
  background: var(--brand-soft);
  color: #000;
  transform: translateY(-2px);
}

/* ==========================================================
   MENU LATÉRAL
   ========================================================== */

.side-menu {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--menu-width);
  background: #f6f7f9;
  border-right: 1px solid rgba(0, 0, 0, 0.08);
  padding: 80px 18px 20px;
  transform: translateX(-100%);
  transition: var(--transition);
  z-index: 99;
}
body.menu-open .side-menu {
  transform: translateX(0);
}
.side-menu nav a {
  display: block;
  color: var(--ink-soft);
  padding: 10px;
  border-radius: 12px;
  margin-bottom: 4px;
  transition: var(--transition);
}
.side-menu nav a:hover {
  background: rgba(0, 0, 0, 0.05);
  color: var(--brand);
}

/* Overlay */
.menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 80;
}
body.menu-open .menu-overlay {
  opacity: 1;
  visibility: visible;
}

/* ==========================================================
   BANNIÈRE
   ========================================================== */

.banner {
  position: relative;
  text-align: center;
  padding: 140px 20px 70px;
  background: linear-gradient(180deg, #f5f7fa 0%, #e8ebee 100%);
  overflow: hidden;
  z-index: 1;
}
.banner-inner {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}
.banner-logo {
  width: 150px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.85);
  padding: 14px;
  box-shadow:
    0 0 32px rgba(247, 201, 72, 0.38),
    0 0 0 2px rgba(0, 0, 0, 0.04);
  filter: drop-shadow(0 0 14px rgba(247, 201, 72, 0.35));
  animation: float 6s ease-in-out infinite;
}
.banner h1 {
  font-size: clamp(2.3rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--brand);
}
.banner p {
  font-size: 1.05rem;
  color: var(--ink-soft);
}
.banner .btn-primary {
  margin-top: 10px;
}

/* ==========================================================
   WRAPPER & SECTIONS
   ========================================================== */

.main-wrapper {
  max-width: 1150px;
  margin: 0 auto 40px;
  padding: 0 16px 40px;
  position: relative;
  z-index: 1;
}

.section {
  margin: 32px auto;
  padding: 28px 22px 26px;
  border-radius: var(--radius);
  background: var(--card-alt);
  box-shadow: var(--shadow);
}
.section:nth-of-type(even) {
  background: var(--card);
}
.section h2 {
  font-size: 1.6rem;
  margin-bottom: 18px;
  color: var(--brand);
  text-align: center;
}

/* ==========================================================
   SERVICES
   ========================================================== */

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}
.service-card {
  background: #ffffff;
  border-radius: 14px;
  padding: 14px 14px 12px;
  border: 1px solid rgba(0, 0, 0, 0.04);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
  transition: var(--transition);
}
.service-card:hover {
  transform: translateY(-3px);
  border-color: var(--brand);
}
.service-card h3 {
  color: var(--brand);
  margin-bottom: 4px;
  font-size: 0.98rem;
}
.service-card p {
  font-size: 0.88rem;
  color: var(--ink-soft);
}

/* ==========================================================
   CONTACT & CARTES
   ========================================================== */

.contact-wrap {
  display: grid;
  grid-template-columns: 1.6fr 1.1fr;
  gap: 18px;
}
.card {
  background: #ffffff;
  border-radius: var(--radius);
  padding: 18px;
  border: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.06);
}

.map-wrap {
  margin-top: 14px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.06);
  box-shadow: 0 4px 10px rgba(0,0,0,0.06);
}
.map-wrap iframe {
  width: 100%;
  height: 230px;
  border: 0;
  display: block;
}

/* Formulaire */
label {
  display: block;
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-bottom: 4px;
}
input,
textarea {
  width: 100%;
  padding: 9px 11px;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.12);
  background: #ffffff;
  color: var(--ink);
  margin-bottom: 9px;
  font-size: 0.9rem;
}
input:focus,
textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 1px rgba(247, 201, 72, 0.18);
}
textarea {
  resize: vertical;
  min-height: 100px;
}

/* Case RGPD */
.checkline {
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 8px;
  margin: 12px 0 16px;
  font-size: 0.8rem;
  color: var(--muted);
  width: 100%;
  text-align: left;
  line-height: 1.4;
}
.checkline input[type="checkbox"] {
  margin-top: 3px;
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  accent-color: var(--brand);
}
.checkline label {
  display: inline;
  margin: 0;
  padding: 0;
  word-break: break-word;
  max-width: calc(100% - 30px);
}

/* Alertes */
.alert {
  padding: 9px 10px;
  border-radius: 10px;
  font-size: 0.82rem;
  margin-bottom: 10px;
}
.alert.ok {
  background: rgba(22,163,74,0.08);
  border: 1px solid rgba(22,163,74,0.4);
  color: var(--success);
}
.alert.err {
  background: rgba(127,29,29,0.08);
  border: 1px solid rgba(127,29,29,0.5);
  color: var(--danger);
}

/* ==========================================================
   FOOTER
   ========================================================== */

footer {
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
  padding: 16px;
  background: #e2e5e9;
  border-top: 1px solid rgba(0,0,0,0.05);
  position: relative;
  z-index: 1;
}

/* ==========================================================
   RESPONSIVE
   ========================================================== */

@media (max-width: 900px) {
  header {
    padding: 0 12px;
  }
  .contact-wrap {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  header {
    height: 56px;
  }
  .banner {
    padding: 110px 14px 50px;
  }
  .banner-logo {
    width: 115px;
    padding: 10px;
  }
  .banner h1 {
    font-size: 2rem;
  }
  .banner p {
    font-size: 0.95rem;
  }
  .main-wrapper {
    padding: 0 12px 30px;
  }
  .section {
    margin: 24px auto;
    padding: 20px 14px 18px;
  }
  .btn-primary,
  .cta-header {
    width: auto;
    padding-inline: 18px;
    font-size: 0.88rem;
  }
  footer {
    font-size: 0.75rem;
    padding: 12px;
  }
}

/* ==========================================================
   ANIMATIONS D'APPARITION
   ========================================================== */

@keyframes float {
  0%,100% { transform: translateY(0); }
  50%     { transform: translateY(-6px); }
}
[data-animate] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================
   ARRIÈRE-PLAN : CIRCUIT DROITE + SILHOUETTES GAUCHE
   ========================================================== */

/* Circuit imprimé à droite (colonne) */
.bg-circuit {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 220px;
  pointer-events: none;
  z-index: 0; /* derrière contenu (z=1) mais devant fond */
  opacity: 0.35;
  filter: saturate(1.15) brightness(1.05);
  transition: opacity 0.35s ease-out, transform 0.35s ease-out;
}
.bg-circuit svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* Silhouettes d’outils à gauche (prises, pinces, etc.) */
.bg-icons {
  position: fixed;
  top: 80px;   /* ne passe pas au-dessus du header */
  left: 0;
  bottom: 40px;
  width: 200px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.32;
  transition: opacity 0.35s ease-out, transform 0.35s ease-out;
}
.bg-icons svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* Courant électrique animé dans le circuit */
.circuit-flow path {
  stroke-dasharray: 180;
  stroke-dashoffset: 180;
  animation: circuitFlow 4s linear infinite;
  opacity: 0.95;
}
.circuit-flow path:nth-child(2) { animation-delay: .4s; }
.circuit-flow path:nth-child(3) { animation-delay: .8s; }
.circuit-flow path:nth-child(4) { animation-delay: 1.2s; }
.circuit-flow path:nth-child(5) { animation-delay: 1.6s; }
.circuit-flow path:nth-child(6) { animation-delay: 2.0s; }
.circuit-flow path:nth-child(7) { animation-delay: 2.4s; }

@keyframes circuitFlow {
  0%   { stroke-dashoffset: 180; opacity: 0; }
  10%  { opacity: 1; }
  70%  { opacity: 1; }
  100% { stroke-dashoffset: -180; opacity: 0; }
}

/* Légère mise en mouvement au scroll (gérée par JS via .scrolled) */
body.scrolled .bg-circuit {
  opacity: 0.45;
  transform: translateY(6px);
}
body.scrolled .bg-icons {
  opacity: 0.4;
  transform: translateY(-4px);
}

/* Mobile : un peu plus étroit mais toujours FIXE & visibles */
@media (max-width: 640px) {
  .bg-circuit {
    width: 110px;
    top: 0;
    bottom: 0;
    opacity: 0.26;
    transform: none;
  }
  .bg-icons {
    width: 90px;
    top: 70px;
    bottom: 0;
    opacity: 0.26;
    transform: none;
  }
  body.scrolled .bg-circuit {
    opacity: 0.34;
    transform: translateY(4px);
  }
  body.scrolled .bg-icons {
    opacity: 0.34;
    transform: translateY(-2px);
  }
}