/* ============================================================
   IDT Professionals — Apple-Inspired Redesign
   Palette: #0179A3 (azul), #E0DC51 (amarillo), #f5f5f7 (gris claro)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

/* ---- RESET & BASE ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue:    #0179A3;
  --blue-dk: #015f80;
  --yellow:  #E0DC51;
  --yellow-dk:#c8c43a;
  --gray-bg: #f5f5f7;
  --gray-mid:#86868b;
  --dark:    #1d1d1f;
  --white:   #ffffff;
  --radius:  18px;
  --shadow:  0 4px 32px rgba(0,0,0,.10);
  --shadow-lg:0 12px 48px rgba(0,0,0,.18);
  --transition: .38s cubic-bezier(.4,0,.2,1);
  --font-display: 'Sora', sans-serif;
  --font-body:    'Plus Jakarta Sans', sans-serif;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--white);
  color: var(--dark);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---- NAVBAR ---- */
.idt-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  background: rgba(255,255,255,.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,.08);
  transition: background var(--transition);
}

.idt-nav.scrolled {
  background: rgba(255,255,255,.92);
}

.idt-nav-logo img {
  height: 40px;
  width: auto;
  display: block;
}

.idt-nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.idt-nav-links a {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--dark);
  text-decoration: none;
  letter-spacing: .02em;
  transition: color var(--transition);
  text-transform: uppercase;
}

.idt-nav-links a:hover { color: var(--blue); }

.idt-nav-links .nav-cta {
  background: var(--blue);
  color: var(--white) !important;
  padding: 8px 20px;
  border-radius: 24px;
  font-weight: 600;
  transition: background var(--transition), transform var(--transition);
}

.idt-nav-links .nav-cta:hover {
  background: var(--blue-dk);
  transform: scale(1.04);
}

/* Hamburger mobile */
.idt-nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.idt-nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---- HERO ---- */
.idt-hero {
  position: relative;
  height: 100vh;
  min-height: 640px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.idt-hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../img/bg-5.jpg');
  background-size: cover;
  background-position: center;
  transform: scale(1.06);
  transition: transform 12s ease;
  animation: heroZoom 12s ease-in-out infinite alternate;
}

@keyframes heroZoom {
  from { transform: scale(1.06); }
  to   { transform: scale(1.12); }
}

.idt-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(1, 121, 163, .72) 0%,
    rgba(0,0,0,.60) 55%,
    rgba(0,0,0,.75) 100%
  );
}

.idt-hero-content {
  position: relative;
  z-index: 2;
  padding: 0 24px;
  max-width: 860px;
  animation: heroFade .9s ease both;
}

@keyframes heroFade {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

.idt-hero-logo {
  height: 90px;
  width: auto;
  max-width: 340px;
  object-fit: contain;
  margin-bottom: 28px;
  filter: drop-shadow(0 4px 24px rgba(0,0,0,.45));
  animation: heroFade .9s ease both;
}

.idt-hero-eyebrow {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: 20px;
}

.idt-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4.8rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.1;
  letter-spacing: -.02em;
  margin-bottom: 24px;
  text-align: center;
}

.idt-hero h1 span { color: var(--yellow); }

.idt-hero p {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 300;
  color: rgba(255,255,255,.82);
  line-height: 1.6;
  margin-bottom: 40px;
  text-align: center;
}

.idt-hero-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary-idt {
  display: inline-block;
  padding: 14px 36px;
  background: var(--yellow);
  color: var(--dark) !important;
  border-radius: 32px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: .01em;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 20px rgba(224,220,81,.4);
}

.btn-primary-idt:hover {
  background: var(--yellow-dk);
  transform: scale(1.04);
  box-shadow: 0 6px 28px rgba(224,220,81,.55);
}

.btn-ghost-idt {
  display: inline-block;
  padding: 13px 36px;
  border: 1.5px solid rgba(255,255,255,.6);
  color: var(--white) !important;
  border-radius: 32px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}

.btn-ghost-idt:hover {
  border-color: var(--white);
  background: rgba(255,255,255,.12);
  transform: scale(1.04);
}

.idt-hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: bounce 2.4s ease infinite;
}

.idt-hero-scroll span {
  width: 1.5px;
  height: 44px;
  background: linear-gradient(to bottom, rgba(255,255,255,0), rgba(255,255,255,.7));
}

@keyframes bounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(8px); }
}

/* ---- SECTION SHARED ---- */
.idt-section {
  padding: 100px 48px;
}

.idt-section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-eyebrow {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 14px;
  display: block;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -.025em;
  line-height: 1.1;
  margin-bottom: 20px;
}

.section-sub {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--gray-mid);
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.65;
  text-align: center;
}

/* ---- SERVICIOS ---- */
#servicios { background: var(--white); }

.idt-services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.idt-service-card {
  background: var(--gray-bg);
  border-radius: var(--radius);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  cursor: default;
  position: relative;
  overflow: hidden;
}

.idt-service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dk) 100%);
  opacity: 0;
  transition: opacity var(--transition);
  border-radius: var(--radius);
}

.idt-service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.idt-service-card:hover::before { opacity: 1; }

.idt-service-card:hover .svc-icon { filter: brightness(0) invert(1); }
.idt-service-card:hover .svc-title { color: var(--white); }
.idt-service-card:hover .svc-desc  { color: rgba(255,255,255,.78); }

.svc-icon {
  width: 52px;
  height: 52px;
  object-fit: contain;
  position: relative;
  z-index: 1;
  transition: filter var(--transition);
}

.svc-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.3;
  position: relative;
  z-index: 1;
  transition: color var(--transition);
}

.svc-desc {
  font-family: var(--font-body);
  font-size: .88rem;
  font-weight: 400;
  color: var(--gray-mid);
  line-height: 1.55;
  position: relative;
  z-index: 1;
  transition: color var(--transition);
}

/* ---- NOSOTROS ---- */
#nosotros { background: var(--gray-bg); }

.idt-about-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.idt-about-img {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.idt-about-img img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  display: block;
  transition: transform .6s ease;
}

.idt-about-img:hover img { transform: scale(1.04); }

.idt-about-img::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 40%;
  background: linear-gradient(to top, rgba(1,121,163,.35), transparent);
  pointer-events: none;
}

.idt-about-text { padding: 0 8px; }

.idt-about-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -.025em;
  line-height: 1.15;
  margin-bottom: 24px;
}

.idt-about-text h2 em {
  font-style: normal;
  color: var(--blue);
}

.idt-about-text p {
  font-family: var(--font-body);
  font-size: 1rem;
  color: #444;
  line-height: 1.75;
  margin-bottom: 16px;
  text-align: left;
}

.idt-pillars {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.idt-pillar {
  background: var(--white);
  border-radius: 14px;
  padding: 20px;
  border-left: 3px solid var(--blue);
}

.idt-pillar h4 {
  font-family: var(--font-display);
  font-size: .85rem;
  font-weight: 700;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-bottom: 8px;
}

.idt-pillar p {
  font-size: .85rem;
  color: #555;
  margin: 0;
  line-height: 1.55;
  text-align: left;
}

/* ---- TECNOLOGIAS ---- */
#tecnologias {
  background: var(--dark);
  padding: 100px 0 80px;
  overflow: hidden;
}

#tecnologias .idt-section-header { padding: 0 48px; }
#tecnologias .section-title { color: var(--white); }

.idt-tec-wrapper {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 48px;
}

/* 4-logo-per-page carousel */
.idt-logo-carousel {
  position: relative;
  min-height: 220px;
}

.idt-logo-slide {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
  opacity: 0;
  transform: translateX(40px);
  transition: opacity .4s ease, transform .4s ease;
  pointer-events: none;
}

.idt-logo-slide.active {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.idt-logo-slide.exit {
  opacity: 0;
  transform: translateX(-40px);
}

/* Category badge */
.idt-logo-slide::before {
  content: attr(data-cat);
  display: inline-block;
  align-self: center;
  background: rgba(224,220,81,.12);
  border: 1px solid rgba(224,220,81,.3);
  color: var(--yellow);
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  padding: 5px 18px;
  border-radius: 20px;
  margin-bottom: 8px;
}

/* 4-column grid */
.idt-logo-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.idt-logo-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px;
  padding: 24px 16px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  text-align: center;
  transition: background var(--transition), transform var(--transition), border-color var(--transition);
  min-height: 140px;
}

.idt-logo-card:hover {
  background: rgba(255,255,255,.10);
  border-color: rgba(1,121,163,.5);
  transform: translateY(-4px);
}

.idt-logo-card--empty {
  background: rgba(255,255,255,.02);
  border-style: dashed;
  cursor: default;
}

.idt-logo-card--empty:hover {
  transform: none;
  background: rgba(255,255,255,.02);
  border-color: rgba(255,255,255,.08);
}

.idt-logo-card img {
  width: auto;
  height: 64px;
  max-width: 130px;
  object-fit: contain;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,.35));
}

.idt-logo-slide.active .idt-logo-card img {
  animation: logoIn .45s ease both;
}

.idt-logo-slide.active .idt-logo-card:nth-child(2) img { animation-delay: .06s; }
.idt-logo-slide.active .idt-logo-card:nth-child(3) img { animation-delay: .12s; }
.idt-logo-slide.active .idt-logo-card:nth-child(4) img { animation-delay: .18s; }

@keyframes logoIn {
  from { transform: scale(.75) translateY(10px); opacity: 0; }
  to   { transform: scale(1)   translateY(0);    opacity: 1; }
}

.idt-logo-card span {
  font-family: var(--font-body);
  font-size: .78rem;
  font-weight: 600;
  color: rgba(255,255,255,.65);
  letter-spacing: .02em;
}

/* Controls */
.idt-tec-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  margin-top: 12px;
  margin-bottom: 32px;
}

.idt-tec-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,.25);
  background: rgba(255,255,255,.07);
  color: var(--white);
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.idt-tec-btn:hover {
  background: var(--blue);
  border-color: var(--blue);
  transform: scale(1.08);
}

.idt-logo-counter {
  font-family: var(--font-body);
  font-size: .9rem;
  color: rgba(255,255,255,.45);
  min-width: 60px;
  text-align: center;
}

.idt-logo-counter span { color: var(--yellow); font-weight: 700; }

/* Category tabs */
.idt-cat-tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

.idt-cat-tab {
  padding: 7px 18px;
  border-radius: 20px;
  border: 1.5px solid rgba(255,255,255,.15);
  font-family: var(--font-body);
  font-size: .78rem;
  font-weight: 600;
  color: rgba(255,255,255,.4);
  cursor: pointer;
  transition: all var(--transition);
  text-transform: uppercase;
  letter-spacing: .08em;
}

.idt-cat-tab.active {
  background: var(--blue);
  border-color: var(--blue);
  color: var(--white);
}

.idt-cat-tab:hover:not(.active) {
  border-color: rgba(255,255,255,.4);
  color: rgba(255,255,255,.7);
}

/* ---- PRODUCTOS ---- */
#productos { background: linear-gradient(160deg, #0b0f1a 0%, #0d1520 60%, #091018 100%); }

/* ── PRODUCTOS dark section ── */
.idt-productos-dark {
  background: linear-gradient(160deg, #0b0f1a 0%, #0d1520 60%, #091018 100%);
  position: relative;
  overflow: hidden;
}
.idt-productos-dark::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(1,121,163,.18) 0%, transparent 70%);
  pointer-events: none;
}
.idt-productos-dark::after {
  content: '';
  position: absolute;
  bottom: -150px; left: -100px;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(224,220,81,.08) 0%, transparent 70%);
  pointer-events: none;
}

.idt-product-showcase {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

/* Power BI badge */
.idt-pbi-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}
.idt-pbi-badge img {
  height: 40px;
  width: auto;
}
.idt-pbi-badge span {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--yellow);
  letter-spacing: .04em;
}

.idt-product-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  color: var(--white);
  letter-spacing: -.02em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.idt-product-text > p {
  font-family: var(--font-body);
  font-size: 1rem;
  color: rgba(255,255,255,.65);
  line-height: 1.7;
  margin-bottom: 24px;
  text-align: left;
}

/* Bullets */
.idt-product-bullets {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.idt-product-bullets li {
  font-family: var(--font-body);
  font-size: .93rem;
  color: rgba(255,255,255,.78);
  display: flex;
  align-items: center;
  gap: 10px;
}
.idt-product-bullets li .fa {
  color: var(--yellow);
  font-size: .9rem;
  flex-shrink: 0;
}

.btn-product {
  display: inline-block;
  padding: 13px 32px;
  background: var(--yellow);
  color: var(--dark);
  border-radius: 28px;
  font-family: var(--font-body);
  font-size: .93rem;
  font-weight: 700;
  text-decoration: none;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 20px rgba(224,220,81,.3);
}
.btn-product:hover { background: var(--yellow-dk); transform: scale(1.04); box-shadow: 0 6px 28px rgba(224,220,81,.45); }

/* ── Dashboard mock ── */
.idt-product-visual { position: relative; z-index: 1; }

.idt-dash-mock {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 20px;
  overflow: hidden;
  backdrop-filter: blur(10px);
  box-shadow: 0 32px 80px rgba(0,0,0,.5), 0 0 0 1px rgba(255,255,255,.06);
  animation: productFloat 5s ease-in-out infinite;
}

@keyframes productFloat {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}

.dash-topbar {
  background: rgba(255,255,255,.06);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.dash-dot {
  width: 11px; height: 11px;
  border-radius: 50%;
  display: inline-block;
}
.dash-title-bar {
  font-family: var(--font-body);
  font-size: .72rem;
  color: rgba(255,255,255,.4);
  margin-left: 10px;
  flex: 1;
  text-align: center;
}

.dash-kpis {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 1px;
  background: rgba(255,255,255,.05);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.dash-kpi-card {
  background: rgba(10,15,26,.8);
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
}
.kpi-icon { font-size: .7rem; color: var(--yellow); }
.kpi-val {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.kpi-lbl {
  font-family: var(--font-body);
  font-size: .65rem;
  color: rgba(255,255,255,.4);
  text-transform: uppercase;
  letter-spacing: .06em;
}

.dash-charts-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  padding: 18px 18px 16px;
  align-items: end;
}
.dash-chart-label {
  display: block;
  font-family: var(--font-body);
  font-size: .65rem;
  color: rgba(255,255,255,.35);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 10px;
}
.dash-bars {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 80px;
}
.dash-bar {
  flex: 1;
  height: var(--h);
  background: rgba(1,121,163,.55);
  border-radius: 4px 4px 0 0;
  transition: background .3s;
}
.dash-bar--accent { background: var(--yellow) !important; }
.dash-bar:hover { background: rgba(1,121,163,.9); }

.dash-donut-wrap { text-align: center; }
.dash-donut {
  width: 80px; height: 80px;
}
.dash-donut svg { width: 100%; height: 100%; transform: rotate(-90deg); }

/* ── Feature cards (dark) ── */
.idt-product-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 1100px;
  margin: 56px auto 0;
  position: relative;
  z-index: 1;
}

.idt-feat-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 20px;
  padding: 32px 28px;
  text-align: center;
  transition: background var(--transition), transform var(--transition);
}
.idt-feat-card:hover {
  background: rgba(255,255,255,.07);
  transform: translateY(-4px);
}

.feat-icon-wrap {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: rgba(1,121,163,.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.feat-icon-wrap--yellow { background: rgba(224,220,81,.2); }
.feat-icon-wrap .fa {
  font-size: 1.3rem;
  color: var(--blue);
}
.feat-icon-wrap--yellow .fa { color: var(--yellow); }

.idt-feat-card h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}

.idt-feat-card p {
  font-size: .88rem;
  color: rgba(255,255,255,.5);
  line-height: 1.6;
  text-align: center;
}

/* ---- INTELIGENCIA ARTIFICIAL ---- */
.idt-ia-dark {
  background: linear-gradient(160deg, #071019 0%, #0a1a24 55%, #061019 100%);
  position: relative;
  overflow: hidden;
}
.idt-ia-dark::before {
  content: '';
  position: absolute;
  top: -180px; left: -160px;
  width: 560px; height: 560px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(224,220,81,.10) 0%, transparent 70%);
  pointer-events: none;
}
.idt-ia-dark::after {
  content: '';
  position: absolute;
  bottom: -160px; right: -140px;
  width: 480px; height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(1,121,163,.22) 0%, transparent 70%);
  pointer-events: none;
}

/* Chat mock */
.idt-chat-body {
  padding: 18px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chat-msg {
  font-family: var(--font-body);
  font-size: .82rem;
  line-height: 1.5;
  padding: 10px 14px;
  border-radius: 14px;
  max-width: 82%;
}

.chat-msg--user {
  align-self: flex-end;
  background: var(--blue);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.chat-msg--ai {
  align-self: flex-start;
  background: rgba(255,255,255,.06);
  color: rgba(255,255,255,.85);
  border: 1px solid rgba(255,255,255,.08);
  border-bottom-left-radius: 4px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.chat-avatar {
  flex-shrink: 0;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--yellow);
  color: var(--dark);
  font-size: .6rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chat-msg--typing { align-items: center; }
.chat-dots { display: flex; gap: 4px; padding: 2px 0; }
.chat-dots i {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: rgba(255,255,255,.5);
  display: inline-block;
  animation: chatDotPulse 1.2s infinite ease-in-out;
}
.chat-dots i:nth-child(2) { animation-delay: .15s; }
.chat-dots i:nth-child(3) { animation-delay: .3s; }
@keyframes chatDotPulse {
  0%, 60%, 100% { opacity: .3; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-2px); }
}

.idt-chat-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 6px;
}
.idt-chat-suggestions span {
  font-family: var(--font-body);
  font-size: .72rem;
  color: rgba(255,255,255,.65);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 20px;
  padding: 6px 12px;
  white-space: nowrap;
}

/* ---- CLIENTES ---- */
#clientes { background: var(--gray-bg); }

.idt-clients-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  max-width: 1100px;
  margin: 0 auto;
}

.idt-client-card {
  background: var(--white);
  border-radius: 14px;
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition), box-shadow var(--transition);
}

.idt-client-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.idt-client-card img {
  max-width: 120px;
  max-height: 60px;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: .55;
  transition: filter var(--transition), opacity var(--transition);
}

.idt-client-card:hover img {
  filter: grayscale(0%);
  opacity: 1;
}

/* ---- CONTACTO / FOOTER ---- */
#contacto {
  background: var(--dark);
  padding: 100px 48px 0;
}

.idt-contact-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 72px;
  padding-bottom: 80px;
}

.idt-contact-info h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--white);
  letter-spacing: -.02em;
  line-height: 1.2;
  margin-bottom: 20px;
}

.idt-contact-info p {
  font-family: var(--font-body);
  font-size: .95rem;
  color: rgba(255,255,255,.6);
  line-height: 1.7;
  margin-bottom: 32px;
  text-align: left;
}

.idt-contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 22px;
}

.idt-contact-detail i {
  font-size: 16px;
  color: var(--yellow);
  margin-top: 2px;
  width: 20px;
  flex-shrink: 0;
}

.idt-contact-detail span {
  font-family: var(--font-body);
  font-size: .9rem;
  color: rgba(255,255,255,.72);
  line-height: 1.6;
}

.idt-social-links {
  display: flex;
  gap: 14px;
  margin-top: 36px;
}

.idt-social-links a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.6);
  font-size: 16px;
  text-decoration: none;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.idt-social-links a:hover {
  background: var(--blue);
  border-color: var(--blue);
  color: var(--white);
}

/* Contact Form */
.idt-form {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 20px;
  padding: 40px;
}

.idt-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 14px;
}

.idt-form input,
.idt-form select,
.idt-form textarea {
  width: 100%;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 10px;
  padding: 14px 16px;
  font-family: var(--font-body);
  font-size: .9rem;
  color: var(--white);
  outline: none;
  transition: border-color var(--transition), background var(--transition);
  -webkit-appearance: none;
}

.idt-form input::placeholder,
.idt-form textarea::placeholder { color: rgba(255,255,255,.35); }

.idt-form select { color: rgba(255,255,255,.6); }
.idt-form select option { color: var(--dark); background: var(--white); }

.idt-form input:focus,
.idt-form select:focus,
.idt-form textarea:focus {
  border-color: var(--blue);
  background: rgba(1,121,163,.12);
}

.idt-form textarea {
  resize: none;
  height: 120px;
  margin-bottom: 14px;
}

.idt-form-check {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.idt-form-check input[type="checkbox"] { width: auto; }

.idt-form-check label {
  font-family: var(--font-body);
  font-size: .82rem;
  color: rgba(255,255,255,.5);
}

.idt-form-check a { color: var(--yellow); text-decoration: none; }

.btn-send {
  width: 100%;
  padding: 15px;
  background: var(--blue);
  color: var(--white);
  border: none;
  border-radius: 12px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  letter-spacing: .02em;
}

.btn-send:hover { background: var(--blue-dk); transform: scale(1.02); }
.btn-send:disabled { opacity: .5; cursor: not-allowed; }

/* Footer bottom bar */
.idt-footer-bar {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 24px 48px;
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.idt-footer-bar p {
  font-family: var(--font-body);
  font-size: .8rem;
  color: rgba(255,255,255,.35);
  text-align: left;
  margin: 0;
}

.idt-footer-bar img {
  height: 30px;
  opacity: .5;
  filter: brightness(0) invert(1);
}

/* ---- MOBILE NAV OVERLAY ---- */
.idt-mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  transform: scale(.96);
  transition: opacity var(--transition), transform var(--transition);
}

.idt-mobile-nav.open {
  display: flex;
  opacity: 1;
  transform: scale(1);
}

.idt-mobile-nav a {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: .05em;
  transition: color var(--transition);
}

.idt-mobile-nav a:hover { color: var(--blue); }

.mobile-close {
  position: absolute;
  top: 24px; right: 24px;
  font-size: 28px;
  color: var(--dark);
  background: none;
  border: none;
  cursor: pointer;
  line-height: 1;
}

/* ---- ANIMATIONS ON SCROLL ---- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .7s ease, transform .7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .idt-about-grid { grid-template-columns: 1fr; gap: 40px; }
  .idt-about-img img { height: 320px; }
  .idt-product-showcase { grid-template-columns: 1fr; padding: 44px; }
  .idt-product-image { display: none; }
  .idt-contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .idt-clients-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .idt-nav { padding: 0 24px; }
  .idt-nav-links { display: none; }
  .idt-nav-toggle { display: flex; }

  .idt-section { padding: 72px 24px; }
  #tecnologias { padding: 72px 0; }
  #tecnologias .idt-section-header { padding: 0 24px; }
  .idt-tec-carousel { padding: 0 24px; }

  .idt-services-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .idt-clients-grid { grid-template-columns: repeat(2, 1fr); }
  .idt-product-features { grid-template-columns: 1fr; }
  .idt-form-row { grid-template-columns: 1fr; }
  .idt-pillars { grid-template-columns: 1fr; }
  .idt-footer-bar { flex-direction: column; gap: 12px; text-align: center; }
  #contacto { padding: 72px 24px 0; }
  .idt-form { padding: 28px 20px; }
}

@media (max-width: 480px) {
  .idt-services-grid { grid-template-columns: 1fr; }
  .idt-clients-grid { grid-template-columns: repeat(2, 1fr); }
  .idt-hero h1 { font-size: 2.2rem; }
}