/* ==========================================================================
Quantory — Estilos personalizados (complementan Tailwind CSS)
   ========================================================================== */

:root {
  --q-blue: #3b82f6;
  --q-blue-dark: #2563eb;
  --q-purple: #8b5cf6;
  --q-purple-dark: #7c3aed;
  --q-dark: #030712;
  --q-dark-2: #0b0f19;
}

* {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, .font-display {
  font-family: "Sora", sans-serif;
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--q-blue), var(--q-purple));
  border-radius: 999px;
}

/* ---------- Loader ---------- */
#loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--q-dark);
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
#loader.loader-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.loader-ring {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 3px solid rgba(139, 92, 246, 0.15);
  border-top-color: var(--q-blue);
  border-right-color: var(--q-purple);
  animation: spin 0.9s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ---------- Glassmorphism ---------- */
.glass {
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.light .glass,
html:not(.dark) .glass {
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(15, 23, 42, 0.08);
}

/* ---------- Gradient text / backgrounds ---------- */
.gradient-text {
  background: linear-gradient(90deg, #60a5fa, #a78bfa 50%, #60a5fa);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: gradient-shift 6s ease infinite;
}
@keyframes gradient-shift {
  0% { background-position: 0% center; }
  50% { background-position: 100% center; }
  100% { background-position: 0% center; }
}

.btn-primary {
  background: linear-gradient(90deg, var(--q-blue-dark), var(--q-purple-dark));
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
  box-shadow: 0 8px 30px -8px rgba(99, 102, 241, 0.6);
}
.btn-primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.12);
  box-shadow: 0 12px 40px -6px rgba(99, 102, 241, 0.75);
}

.btn-outline {
  border: 1px solid rgba(148, 163, 184, 0.35);
  transition: all 0.25s ease;
}
.btn-outline:hover {
  border-color: var(--q-blue);
  background: rgba(59, 130, 246, 0.08);
  transform: translateY(-2px);
}

/* ---------- Particles background ---------- */
#tsparticles {
  position: absolute;
  inset: 0;
  z-index: 0;
}

/* ---------- Blobs ---------- */
.blob {
  position: absolute;
  border-radius: 9999px;
  filter: blur(90px);
  opacity: 0.35;
  pointer-events: none;
  animation: float 10s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(20px, -30px) scale(1.08); }
}

/* ---------- Card hover ---------- */
.card-hover {
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}
.card-hover:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 45px -15px rgba(59, 130, 246, 0.35);
  border-color: rgba(139, 92, 246, 0.45);
}

/* ---------- Nav link underline ---------- */
.nav-link {
  position: relative;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--q-blue), var(--q-purple));
  transition: width 0.3s ease;
}
.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* ---------- Tech logo card ---------- */
.tech-card i,
.tech-card .tech-icon {
  filter: grayscale(1) opacity(0.65);
  transition: filter 0.35s ease, transform 0.35s ease;
}
.tech-card:hover i,
.tech-card:hover .tech-icon {
  filter: grayscale(0) opacity(1);
  transform: scale(1.15);
}

/* ---------- Project filter ---------- */
.filter-btn.active {
  background: linear-gradient(90deg, var(--q-blue-dark), var(--q-purple-dark));
  color: #fff;
  border-color: transparent;
}

.project-card {
  display: block;
}
.project-card[data-hidden="true"] {
  display: none;
}

/* ---------- KPI counter ---------- */
.kpi-number {
  font-variant-numeric: tabular-nums;
}

/* ---------- WhatsApp float button ---------- */
#whatsapp-float {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 50;
  box-shadow: 0 10px 30px -8px rgba(34, 197, 94, 0.6);
  animation: pulse-wa 2.4s ease-in-out infinite;
}
@keyframes pulse-wa {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.55), 0 10px 30px -8px rgba(34,197,94,.6); }
  50% { box-shadow: 0 0 0 12px rgba(34, 197, 94, 0), 0 10px 30px -8px rgba(34,197,94,.6); }
}

/* ---------- Modal ---------- */
.modal {
  transition: opacity 0.3s ease;
}
.modal[data-open="false"] {
  opacity: 0;
  pointer-events: none;
}
.modal[data-open="true"] {
  opacity: 1;
  pointer-events: auto;
}
.modal .modal-panel {
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.modal[data-open="false"] .modal-panel {
  transform: translateY(16px) scale(0.98);
  opacity: 0;
}
.modal[data-open="true"] .modal-panel {
  transform: translateY(0) scale(1);
  opacity: 1;
}

/* ---------- Course syllabus accordion ---------- */
details > summary {
  list-style: none;
}
details > summary::-webkit-details-marker {
  display: none;
}

/* ---------- Toast ---------- */
#toast {
  transition: transform 0.35s ease, opacity 0.35s ease;
}

/* ---------- Chart container ---------- */
.chart-box {
  position: relative;
  height: 280px;
}

/* ---------- Mobile menu ---------- */
#mobile-menu {
  transition: max-height 0.35s ease, opacity 0.3s ease;
  overflow: hidden;
}