/* =========================================================
   Perkan Solutions — Couche "design" (raffinements visuels)
   Additive : se superpose à style.css sans le remplacer.
   ========================================================= */

/* ---------- Titres en dégradé animé ---------- */
.grad-text {
  background: linear-gradient(120deg, var(--red) 0%, var(--gold) 45%, var(--red-glow) 100%);
  background-size: 220% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: grad-shift 9s ease-in-out infinite;
}
@keyframes grad-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ---------- Accent décoratif sous les titres de section ---------- */
.section-header h2 { position: relative; }
.section-header h2::after {
  content: "";
  display: block;
  width: 64px;
  height: 4px;
  margin: 1.15rem auto 0;
  border-radius: 4px;
  background: var(--grad-cool);
}

/* ---------- Étiquettes (tags) raffinées ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  font-weight: 600;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--grad-brand);
  box-shadow: 0 0 0 3px var(--red-soft);
  flex-shrink: 0;
}

/* ---------- Boutons : reflet qui balaie + focus net ---------- */
.btn-primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: -130%;
  width: 55%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s ease;
  pointer-events: none;
}
.btn-primary:hover::after { left: 150%; }

/* ---------- Lueur colorée au survol des cartes ---------- */
.why-card,
.industry-card,
.team-card,
.include-card,
.package-card,
.value-item {
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
}
.why-card:hover,
.industry-card:hover,
.team-card:hover,
.include-card:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--red) 40%, var(--border-strong));
  box-shadow: var(--shadow-lg), 0 16px 44px color-mix(in srgb, var(--red) 16%, transparent);
}
.package-card:hover {
  box-shadow: var(--shadow-lg), 0 18px 50px color-mix(in srgb, var(--red) 18%, transparent);
}

/* ---------- Icônes de service : anneau dégradé subtil ---------- */
.service-icon { position: relative; }
.service-icon::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, color-mix(in srgb, currentColor 55%, transparent), transparent 60%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* ---------- Statistiques en chiffres dégradés ---------- */
.stat-num {
  background: linear-gradient(135deg, #60a5fa 0%, #fbbf24 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Portfolio : zoom doux de l'image ---------- */
.portfolio-img { overflow: hidden; }
.portfolio-card img { transition: transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1); }
.portfolio-card:hover img { transform: scale(1.08); }

/* ---------- Cartes flottantes : effet verre ---------- */
.float-card {
  -webkit-backdrop-filter: blur(12px) saturate(150%);
  backdrop-filter: blur(12px) saturate(150%);
}

/* ---------- Filet dégradé en haut du footer ---------- */
.footer { position: relative; }
.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--red), var(--gold), transparent);
  opacity: 0.55;
}

/* ---------- Puces de techno : survol vivant ---------- */
.tech-chip { transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), color var(--transition); }
.tech-chip:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--red) 45%, var(--border-strong));
  box-shadow: 0 8px 24px color-mix(in srgb, var(--red) 14%, transparent);
}

/* ---------- Barre de défilement personnalisée ---------- */
* { scrollbar-width: thin; scrollbar-color: var(--red) transparent; }
::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--red), var(--red-deep));
  border-radius: 10px;
  border: 3px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover { background: linear-gradient(var(--red-glow), var(--red)); }

/* ---------- Sélection de texte ---------- */
::selection { background: color-mix(in srgb, var(--red) 28%, transparent); color: var(--text); }

/* ---------- Focus visible accessible (clavier) ---------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.btn:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---------- Respect des préférences de mouvement ---------- */
@media (prefers-reduced-motion: reduce) {
  .grad-text { animation: none; }
  .btn-primary::after { transition: none; }
  .portfolio-card img { transition: none; }
}