/* ====================================================================
   T-Secure — Feuille de style
   Organisation : variables > reset > layout > composants > sections > responsive
   ==================================================================== */

/* ---------- Variables (modifie ici pour changer les couleurs/tailles) ---------- */
:root {
  /* Couleurs principales */
  --color-primary: #0d1b2a;        /* bleu marine très foncé / anthracite */
  --color-primary-light: #16293f;  /* variante plus claire pour dégradés */
  --color-accent: #22c55e;         /* vert accent (CTA, éléments interactifs) */
  --color-accent-dark: #16a34a;    /* vert au survol */

  /* Neutres */
  --color-bg: #ffffff;
  --color-bg-alt: #f4f7f9;
  --color-text: #16212e;
  --color-text-muted: #5b6b7c;
  --color-border: #e2e8ef;

  /* Typo */
  --font-base: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Autres */
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 4px 20px rgba(13, 27, 42, 0.08);
  --shadow-card-hover: 0 12px 30px rgba(13, 27, 42, 0.14);
  --container-width: 1160px;
  --header-height: 72px;
  --transition: 0.25s ease;
}

/* ---------- Reset ---------- */
* , *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3, h4 { margin: 0 0 0.5em; line-height: 1.2; font-weight: 800; }
p { margin: 0 0 1em; }

/* Respecte les préférences de mouvement réduit */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ---------- Layout utilitaires ---------- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}
.section { padding: 88px 0; }
.section-alt { background: var(--color-bg-alt); }
.section-eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--color-accent-dark);
  margin-bottom: 0.75em;
}
.section h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  max-width: 720px;
}
.section-intro {
  max-width: 620px;
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 1rem;
  border: 2px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-accent);
  color: #0a1017;
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(34, 197, 94, 0.35);
}
.btn-ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.35);
  color: inherit;
}
.btn-ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.btn-sm { padding: 10px 18px; font-size: 0.9rem; }
.btn-lg { padding: 16px 32px; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* ==================== HEADER ==================== */
#site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: rgba(13, 27, 42, 0.0);
  backdrop-filter: blur(0px);
  transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}
#site-header.scrolled {
  background: rgba(13, 27, 42, 0.92);
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.2rem;
  color: #fff;
  flex-shrink: 0;
}
.main-nav ul {
  display: flex;
  gap: 28px;
}
.nav-link {
  color: rgba(255,255,255,0.85);
  font-weight: 600;
  font-size: 0.95rem;
  transition: color var(--transition);
  position: relative;
}
.nav-link:hover { color: var(--color-accent); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}
.header-phone {
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  display: none;
}
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  padding: 0;
}
.menu-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: #fff;
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Nav mobile (repliée par défaut) */
.main-nav {
  position: fixed;
  top: var(--header-height);
  left: 0; right: 0;
  background: var(--color-primary);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition);
}
.main-nav.open { max-height: 400px; }
.main-nav ul {
  flex-direction: column;
  padding: 10px 20px 24px;
  gap: 0;
}
.main-nav li { border-top: 1px solid rgba(255,255,255,0.08); }
.main-nav .nav-link { display: block; padding: 14px 4px; }

/* ==================== HERO ==================== */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  color: #fff;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 20%, rgba(34, 197, 94, 0.16), transparent 45%),
    radial-gradient(circle at 85% 75%, rgba(34, 197, 94, 0.10), transparent 50%),
    linear-gradient(160deg, var(--color-primary) 0%, #0a141f 100%);
  z-index: -1;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse at center, black 0%, transparent 75%);
}
.hero-inner { max-width: 760px; }
.eyebrow {
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.85rem;
  margin-bottom: 1em;
}
.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  margin-bottom: 0.4em;
}
.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,0.82);
  max-width: 620px;
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 1.75em 0;
}
.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  margin-top: 1.5em;
}
.hero-trust li { position: relative; padding-left: 20px; }
.hero-trust li::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* ==================== CARDS GRID (services / réalisations) ==================== */
.cards-grid {
  display: grid;
  gap: 28px;
  margin-top: 48px;
  grid-template-columns: 1fr;
}
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.card-icon {
  width: 64px; height: 64px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(34, 197, 94, 0.1);
  color: var(--color-accent-dark);
  margin-bottom: 20px;
}
.service-card h3 { font-size: 1.2rem; }
.service-card p { color: var(--color-text-muted); margin-bottom: 0; }

/* ==================== POURQUOI ME CHOISIR ==================== */
.why-grid {
  display: grid;
  gap: 24px;
  margin-top: 48px;
  grid-template-columns: 1fr;
}
.why-item {
  position: relative;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
}
.why-item-highlight {
  border-color: var(--color-accent);
  background: linear-gradient(145deg, rgba(34,197,94,0.06), transparent 60%);
}
.why-badge {
  display: inline-block;
  background: var(--color-accent);
  color: #0a1017;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 4px 10px;
  border-radius: 100px;
  margin-bottom: 10px;
}
.why-icon {
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-accent);
  margin-bottom: 16px;
}
.why-item h3 { font-size: 1.1rem; margin-bottom: 0.4em; }
.why-item p { color: var(--color-text-muted); margin-bottom: 0; font-size: 0.95rem; }

/* ==================== REALISATIONS (placeholders) ==================== */
.realisations-grid { grid-template-columns: 1fr; }
.realisation-card {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  padding: 40px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 14px;
  transition: border-color var(--transition), transform var(--transition);
}
.realisation-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}
.realisation-media {
  width: 68px; height: 68px;
  border-radius: 50%;
  background: rgba(13, 27, 42, 0.06);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  animation: pulse-soft 3s ease-in-out infinite;
}
.realisation-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text-muted);
}
@keyframes pulse-soft {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.06); opacity: 0.75; }
}

/* ==================== ZONE D'INTERVENTION ==================== */
.zone-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}
.zone-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 1.5em;
}
.zone-tags li {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text);
}
.zone-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

/* Carte de la Haute-Savoie (découpage par commune) dans .zone-visual */
.hs-map {
  width: 100%;
  max-width: 340px;
  height: auto;
  display: block;
}
.hs-communes polygon,
.hs-communes path {
  fill: rgba(13, 27, 42, 0.06);
  stroke: var(--color-accent);
  stroke-opacity: 0.55;
  stroke-width: 0.0013;
  stroke-linejoin: round;
  transition: fill var(--transition);
}
.hs-map:hover .hs-communes polygon,
.hs-map:hover .hs-communes path {
  fill: rgba(34, 197, 94, 0.1);
}
.hs-pin-dot {
  fill: var(--color-accent);
}
.hs-pin-pulse {
  fill: var(--color-accent);
  opacity: 0.45;
  transform-box: fill-box;
  transform-origin: center;
  animation: hs-pulse 2.4s ease-out infinite;
}
@keyframes hs-pulse {
  0% { transform: scale(1); opacity: 0.45; }
  70%, 100% { transform: scale(3.4); opacity: 0; }
}
.hs-map-credit {
  text-align: center;
  font-size: 0.72rem;
  color: var(--color-text-muted);
  margin-top: 12px;
}

/* ==================== CONTACT ==================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 40px;
  align-items: start;
}
.contact-info {
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  padding: 32px 28px;
}
.contact-info h3 { font-size: 1.15rem; margin-bottom: 1em; }
.contact-list { display: flex; flex-direction: column; gap: 16px; margin-bottom: 1.5em; }
.contact-list li { display: flex; align-items: center; gap: 12px; }
.contact-list a { font-weight: 600; transition: color var(--transition); }
.contact-list a:hover { color: var(--color-accent); }
.contact-list svg { flex-shrink: 0; color: var(--color-accent); }
.contact-note { color: rgba(255,255,255,0.7); font-size: 0.9rem; margin: 0; }

.contact-form {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
}
.form-row { margin-bottom: 20px; }
.form-row-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
label {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 6px;
}
input, select, textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.98rem;
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.18);
}
textarea { resize: vertical; }
.form-row.has-error input,
.form-row.has-error select,
.form-row.has-error textarea {
  border-color: #e0433d;
}
.form-error {
  display: block;
  color: #e0433d;
  font-size: 0.82rem;
  margin-top: 4px;
  min-height: 1.1em;
}
.form-note {
  margin: 14px 0 0;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent-dark);
  min-height: 1.2em;
}
.form-note.is-error { color: #e0433d; }

/* ==================== FOOTER ==================== */
.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.75);
  padding-top: 56px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .logo-text {
  font-weight: 800;
  font-size: 1.2rem;
  color: #fff;
}
.footer-brand p { margin-top: 10px; max-width: 320px; font-size: 0.9rem; }
.footer-nav { display: flex; flex-direction: column; gap: 10px; }
.footer-nav a { font-size: 0.92rem; transition: color var(--transition); }
.footer-nav a:hover { color: var(--color-accent); }
.footer-contact { display: flex; flex-direction: column; gap: 10px; font-weight: 600; }
.footer-contact a:hover { color: var(--color-accent); }
.footer-bottom {
  padding: 20px;
  text-align: center;
  font-size: 0.82rem;
}

/* ==================== ANIMATIONS AU SCROLL ==================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==================== RESPONSIVE ==================== */
/* Tablette et plus (>= 640px) */
@media (min-width: 640px) {
  .form-row-split { grid-template-columns: 1fr 1fr; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .realisations-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1.2fr 1fr 1fr; }
}

/* Desktop (>= 900px) */
@media (min-width: 900px) {
  .header-phone { display: inline-block; }
  .menu-toggle { display: none; }
  .main-nav {
    position: static;
    max-height: none;
    overflow: visible;
    background: transparent;
  }
  .main-nav ul { flex-direction: row; padding: 0; gap: 28px; }
  .main-nav li { border-top: none; }
  .main-nav .nav-link { padding: 0; }

  .services-grid { grid-template-columns: repeat(3, 1fr); }
  .realisations-grid { grid-template-columns: repeat(3, 1fr); }
  .why-grid { grid-template-columns: repeat(4, 1fr); }

  .zone-inner { grid-template-columns: 1.2fr 0.8fr; }
  .contact-grid { grid-template-columns: 0.8fr 1.2fr; }
}