/* ============================================================
   TAKITEL — style.css
   Mobile-first, CSS3 moderno, degradados, animaciones
   ============================================================ */

/* ------------------------------------------------------------
   VARIABLES
   ------------------------------------------------------------ */
:root {
  --color-bg:          #0a0a1a;
  --color-bg2:         #0f0f2a;
  --color-bg3:         #13132e;
  --color-card:        #1a1a3e;
  --color-card2:       #16163a;
  --color-border:      rgba(168,85,247,.2);

  --color-purple:      #7c3aed;
  --color-purple-light:#a855f7;
  --color-pink:        #ec4899;
  --color-blue:        #3b82f6;
  --color-blue-deep:   #1e3a8a;
  --color-gold:        #f59e0b;
  --color-neon:        #22d3ee;
  --color-white:       #ffffff;
  --color-gray:        #94a3b8;
  --color-gray-light:  #cbd5e1;

  --grad-main:    linear-gradient(135deg, #7c3aed 0%, #ec4899 50%, #f59e0b 100%);
  --grad-purple:  linear-gradient(135deg, #7c3aed, #a855f7);
  --grad-pink:    linear-gradient(135deg, #ec4899, #f43f5e);
  --grad-dark:    linear-gradient(135deg, #0a0a1a, #1a1a3e);
  --grad-card:    linear-gradient(135deg, rgba(124,58,237,.15), rgba(236,72,153,.1));
  --grad-hero:    linear-gradient(135deg, #0a0a1a 0%, #1a0a3e 40%, #0a1a3e 100%);

  --shadow-sm:   0 2px 8px rgba(124,58,237,.2);
  --shadow-md:   0 8px 24px rgba(124,58,237,.25);
  --shadow-lg:   0 16px 48px rgba(124,58,237,.3);
  --shadow-glow: 0 0 30px rgba(168,85,247,.4);

  --radius-sm:  8px;
  --radius-md:  16px;
  --radius-lg:  24px;
  --radius-xl:  32px;

  --font-main:  'Inter', sans-serif;
  --font-head:  'Poppins', sans-serif;

  --transition: .3s cubic-bezier(.4,0,.2,1);
  --transition-fast: .15s ease;
}

/* ------------------------------------------------------------
   RESET & BASE
   ------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-main);
  background: var(--color-bg);
  color: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font-main); }
input, select, textarea { font-family: var(--font-main); }

/* ------------------------------------------------------------
   UTILIDADES
   ------------------------------------------------------------ */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.text-center { text-align: center; }
.text-gradient {
  background: var(--grad-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-pad { padding: 80px 0; }
.section-pad-sm { padding: 60px 0; }

/* Animaciones de entrada */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ------------------------------------------------------------
   BOTONES
   ------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 50px;
  font-weight: 700;
  font-size: .95rem;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  text-decoration: none;
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,.1);
  opacity: 0;
  transition: var(--transition-fast);
}
.btn:hover::after { opacity: 1; }
.btn:active { transform: scale(.97); }

.btn-primary {
  background: var(--grad-main);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn-primary:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(168,85,247,.6);
}
.btn-outline:hover { border-color: var(--color-purple-light); background: rgba(168,85,247,.1); }

.btn-whatsapp {
  background: linear-gradient(135deg, #25D366, #128C7E);
  color: #fff;
  box-shadow: 0 4px 16px rgba(37,211,102,.3);
}
.btn-whatsapp:hover { box-shadow: 0 8px 24px rgba(37,211,102,.4); transform: translateY(-2px); }

.btn-header-cta {
  background: var(--grad-main);
  color: #fff;
  padding: 10px 22px;
  font-size: .85rem;
  border-radius: 50px;
  box-shadow: var(--shadow-sm);
}
.btn-header-cta:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }

.btn-sm { padding: 8px 18px; font-size: .82rem; }

/* ------------------------------------------------------------
   HEADER
   ------------------------------------------------------------ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 0;
  background: rgba(10,10,26,.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}
.site-header.scrolled {
  padding: 10px 0;
  background: rgba(10,10,26,.97);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.logo { display: flex; align-items: center; }
.logo-img { height: 36px; width: auto; }

.main-nav .nav-list {
  display: flex;
  gap: 4px;
  align-items: center;
}
.nav-link {
  padding: 8px 12px;
  font-size: .88rem;
  font-weight: 500;
  color: var(--color-gray-light);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}
.nav-link:hover { color: #fff; background: rgba(168,85,247,.15); }
.nav-link.active { color: var(--color-purple-light); }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
  cursor: pointer;
  z-index: 1001;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.menu-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  z-index: 998;
  backdrop-filter: blur(4px);
}
.menu-overlay.active { display: block; }

/* Mobile Nav */
@media (max-width: 960px) {
  .menu-toggle { display: flex; }
  .btn-header-cta { display: none; }

  .main-nav {
    position: fixed;
    top: 0; right: -100%;
    width: min(320px, 85vw);
    height: 100vh;
    background: var(--color-bg2);
    border-left: 1px solid var(--color-border);
    padding: 80px 24px 40px;
    transition: right var(--transition);
    z-index: 999;
    overflow-y: auto;
  }
  .main-nav.open { right: 0; }
  .main-nav .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }
  .nav-link {
    padding: 14px 16px;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    display: block;
  }
}

/* ------------------------------------------------------------
   HERO
   ------------------------------------------------------------ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: var(--grad-hero);
  padding-top: 80px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('../img/hero/hero-bg.jpg') center/cover no-repeat;
  opacity: .18;
  z-index: 0;
}
.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}
.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--color-purple-light);
  border-radius: 50%;
  animation: float-particle linear infinite;
  opacity: .6;
}
@keyframes float-particle {
  0%   { transform: translateY(100vh) rotate(0deg); opacity: 0; }
  10%  { opacity: .6; }
  90%  { opacity: .6; }
  100% { transform: translateY(-100px) rotate(720deg); opacity: 0; }
}
.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124,58,237,.3) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1;
  animation: pulse-glow 4s ease-in-out infinite;
}
@keyframes pulse-glow {
  0%, 100% { transform: translate(-50%,-50%) scale(1); opacity: .6; }
  50%       { transform: translate(-50%,-50%) scale(1.2); opacity: .9; }
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  padding: 60px 0;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(168,85,247,.15);
  border: 1px solid rgba(168,85,247,.3);
  color: var(--color-purple-light);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: .82rem;
  font-weight: 600;
  margin-bottom: 24px;
  letter-spacing: .05em;
  text-transform: uppercase;
}
.hero-title {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  color: #fff;
}
.hero-subtitle {
  font-size: clamp(.95rem, 2vw, 1.2rem);
  color: var(--color-gray-light);
  max-width: 700px;
  margin: 0 auto 36px;
  line-height: 1.7;
}
.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-bottom: 48px;
}
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.hero-tag {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  color: var(--color-gray-light);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: .82rem;
  font-style: italic;
}
.hero-wave {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  z-index: 2;
  line-height: 0;
}

/* ------------------------------------------------------------
   SECCIÓN HEADER GENÉRICO
   ------------------------------------------------------------ */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-label {
  display: inline-block;
  background: var(--grad-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-desc {
  color: var(--color-gray);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ------------------------------------------------------------
   SERVICIOS
   ------------------------------------------------------------ */
#servicios { background: var(--color-bg); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.service-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-card);
  opacity: 0;
  transition: var(--transition);
}
.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(168,85,247,.5);
  box-shadow: var(--shadow-lg);
}
.service-card:hover::before { opacity: 1; }

.service-card-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(124,58,237,.3), rgba(236,72,153,.2));
}
.service-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: var(--grad-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.service-title {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  position: relative;
  z-index: 1;
}
.service-desc {
  font-size: .875rem;
  color: var(--color-gray);
  line-height: 1.6;
  flex: 1;
  position: relative;
  z-index: 1;
}
.service-btn {
  margin-top: auto;
  position: relative;
  z-index: 1;
  align-self: flex-start;
}

/* ------------------------------------------------------------
   SECCIÓN CLIENTES
   ------------------------------------------------------------ */
#clientes { background: var(--color-bg2); }
.clients-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.client-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  transition: var(--transition);
}
.client-card:hover {
  transform: translateY(-4px);
  border-color: rgba(168,85,247,.4);
  box-shadow: var(--shadow-md);
}
.client-icon { font-size: 2rem; margin-bottom: 12px; }
.client-title {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}
.client-list { list-style: none; }
.client-list li {
  font-size: .85rem;
  color: var(--color-gray);
  padding: 4px 0;
  padding-left: 16px;
  position: relative;
}
.client-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--color-purple-light);
  font-size: .7rem;
}

/* ------------------------------------------------------------
   SECCIÓN EMPRESAS (destacada)
   ------------------------------------------------------------ */
#empresas {
  background: linear-gradient(135deg, #1a0a3e 0%, #0a1a3e 50%, #1a0a2e 100%);
  position: relative;
  overflow: hidden;
}
#empresas::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../img/sections/empresas-bg.jpg') center/cover no-repeat;
  opacity: .08;
}
.empresas-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}
.empresas-content p {
  color: var(--color-gray-light);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 36px;
}

/* ------------------------------------------------------------
   CÓMO FUNCIONA
   ------------------------------------------------------------ */
#como-funciona {
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
}
#como-funciona::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../img/sections/como-funciona-bg.jpg') center/cover no-repeat;
  opacity: .05;
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  position: relative;
  z-index: 1;
}
.step-card {
  background: var(--color-card2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  transition: var(--transition);
}
.step-card:hover {
  border-color: rgba(168,85,247,.4);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--grad-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.1rem;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(124,58,237,.4);
}
.step-text h4 {
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
  font-size: .95rem;
}
.step-text p {
  color: var(--color-gray);
  font-size: .875rem;
  line-height: 1.6;
}

/* ------------------------------------------------------------
   ESTILOS DISPONIBLES
   ------------------------------------------------------------ */
#estilos { background: var(--color-bg2); }
.estilos-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
@media (max-width: 768px) { .estilos-grid { grid-template-columns: 1fr; } }

.estilos-col h3 {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-purple-light);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}
.tags-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  color: var(--color-gray-light);
  padding: 7px 16px;
  border-radius: 50px;
  font-size: .82rem;
  font-weight: 500;
  transition: var(--transition-fast);
}
.tag:hover {
  background: rgba(168,85,247,.15);
  border-color: var(--color-purple-light);
  color: #fff;
}

/* ------------------------------------------------------------
   PUBLICACIÓN / ENTREGA
   ------------------------------------------------------------ */
#publicacion { background: var(--color-bg); }
.publicacion-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}
.pub-item {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  transition: var(--transition);
}
.pub-item:hover {
  transform: translateY(-3px);
  border-color: rgba(168,85,247,.4);
  box-shadow: var(--shadow-sm);
}
.pub-icon { font-size: 2rem; margin-bottom: 10px; }
.pub-label { font-size: .85rem; font-weight: 600; color: var(--color-gray-light); }

/* ------------------------------------------------------------
   FORMULARIO
   ------------------------------------------------------------ */
#formulario { background: var(--color-bg2); }

.form-wrapper {
  max-width: 860px;
  margin: 0 auto;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

/* Progress bar */
.form-progress {
  background: rgba(0,0,0,.3);
  padding: 24px 32px 0;
}
.progress-steps {
  display: flex;
  gap: 0;
  margin-bottom: 24px;
  position: relative;
}
.progress-steps::before {
  content: '';
  position: absolute;
  top: 16px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: rgba(255,255,255,.1);
  z-index: 0;
}
.progress-bar-fill {
  position: absolute;
  top: 16px;
  left: 16px;
  height: 2px;
  background: var(--grad-main);
  z-index: 1;
  transition: width .4s ease;
  width: 0%;
}
.progress-step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  position: relative;
  z-index: 2;
}
.step-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
  border: 2px solid rgba(255,255,255,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .75rem;
  font-weight: 700;
  transition: var(--transition);
}
.progress-step.active .step-dot {
  background: var(--grad-main);
  border-color: transparent;
  box-shadow: 0 0 0 4px rgba(168,85,247,.3);
}
.progress-step.done .step-dot {
  background: #10b981;
  border-color: transparent;
}
.step-label {
  font-size: .72rem;
  color: var(--color-gray);
  font-weight: 500;
  text-align: center;
}
.progress-step.active .step-label { color: var(--color-purple-light); }
.progress-step.done .step-label  { color: #10b981; }

/* Form body */
.form-body { padding: 32px; }

.form-step { display: none; }
.form-step.active { display: block; }

.form-step-title {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}
.form-step-desc {
  color: var(--color-gray);
  font-size: .9rem;
  margin-bottom: 28px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 600px) { .form-grid { grid-template-columns: 1fr; } }
.form-grid .col-full { grid-column: 1 / -1; }

.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label {
  font-size: .85rem;
  font-weight: 600;
  color: var(--color-gray-light);
}
.form-label span.req { color: var(--color-pink); margin-left: 2px; }

.form-input, .form-select, .form-textarea {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-sm);
  color: #fff;
  padding: 12px 14px;
  font-size: .9rem;
  transition: var(--transition-fast);
  width: 100%;
}
.form-input::placeholder, .form-textarea::placeholder { color: rgba(255,255,255,.3); }
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-purple-light);
  background: rgba(168,85,247,.08);
  box-shadow: 0 0 0 3px rgba(168,85,247,.15);
}
.form-input.error, .form-select.error { border-color: #ef4444; box-shadow: 0 0 0 3px rgba(239,68,68,.15); }
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23a855f7' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px; cursor: pointer; }
.form-select option { background: #1a1a3e; color: #fff; }
.form-textarea { resize: vertical; min-height: 90px; line-height: 1.5; }

.form-error-msg {
  font-size: .78rem;
  color: #ef4444;
  margin-top: 2px;
  display: none;
}
.form-group.has-error .form-error-msg { display: block; }

/* Sección empresa oculta */
#seccion-empresa { display: none; }
#seccion-empresa.visible { display: block; }

/* Navegación wizard */
.form-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  gap: 12px;
}
.btn-prev {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.15);
  color: var(--color-gray-light);
  padding: 12px 24px;
  border-radius: 50px;
  font-weight: 600;
  font-size: .9rem;
  transition: var(--transition-fast);
}
.btn-prev:hover { background: rgba(255,255,255,.1); color: #fff; }
.btn-prev:disabled { opacity: .3; pointer-events: none; }

.btn-next {
  background: var(--grad-purple);
  color: #fff;
  padding: 12px 28px;
  border-radius: 50px;
  font-weight: 700;
  font-size: .9rem;
  border: none;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.btn-next:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }

.btn-submit {
  background: var(--grad-main);
  color: #fff;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  border: none;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}
.btn-submit:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.btn-submit:disabled { opacity: .6; pointer-events: none; }

.btn-clear {
  background: none;
  border: none;
  color: var(--color-gray);
  font-size: .82rem;
  text-decoration: underline;
  cursor: pointer;
  padding: 4px;
}
.btn-clear:hover { color: var(--color-gray-light); }

/* Notificaciones del formulario */
.form-notification {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: .9rem;
  font-weight: 500;
  margin-bottom: 20px;
  display: none;
  align-items: center;
  gap: 10px;
}
.form-notification.success { display: flex; background: rgba(16,185,129,.15); border: 1px solid rgba(16,185,129,.3); color: #6ee7b7; }
.form-notification.error   { display: flex; background: rgba(239,68,68,.12); border: 1px solid rgba(239,68,68,.3); color: #fca5a5; }

/* ------------------------------------------------------------
   FOOTER
   ------------------------------------------------------------ */
.site-footer {
  background: #060612;
  border-top: 1px solid var(--color-border);
  padding: 72px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--color-border);
}
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

.footer-desc {
  color: var(--color-gray);
  font-size: .875rem;
  line-height: 1.7;
  margin: 16px 0 24px;
}
.footer-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: .9rem;
  color: var(--color-purple-light);
  margin-bottom: 16px;
  letter-spacing: .05em;
  text-transform: uppercase;
}
.footer-list li { margin-bottom: 8px; }
.footer-list a {
  color: var(--color-gray);
  font-size: .875rem;
  transition: var(--transition-fast);
}
.footer-list a:hover { color: #fff; }
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-gray);
  font-size: .875rem;
}
.footer-contact svg { color: var(--color-purple-light); flex-shrink: 0; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom p { color: var(--color-gray); font-size: .82rem; }
.footer-admin-link a { color: rgba(255,255,255,.15); font-size: .75rem; }
.footer-admin-link a:hover { color: rgba(255,255,255,.4); }

/* ------------------------------------------------------------
   RESPONSIVE GENERAL
   ------------------------------------------------------------ */
@media (max-width: 768px) {
  .section-pad  { padding: 60px 0; }
  .services-grid { grid-template-columns: 1fr; }
  .steps-grid   { grid-template-columns: 1fr; }
  .form-body    { padding: 20px; }
  .form-progress { padding: 20px 20px 0; }
  .hero-btns    { flex-direction: column; align-items: center; }
  .btn { justify-content: center; }
}

/* ------------------------------------------------------------
   FLOATING WA BUTTON
   ------------------------------------------------------------ */
.float-wa {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 900;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, #25D366, #128C7E);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,.5);
  transition: var(--transition);
  animation: float-btn 3s ease-in-out infinite;
}
.float-wa:hover { transform: scale(1.1); box-shadow: 0 8px 28px rgba(37,211,102,.6); }
@keyframes float-btn {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}
.float-wa svg { width: 30px; height: 30px; fill: #fff; }

/* Scroll top */
.scroll-top {
  position: fixed;
  bottom: 96px;
  right: 24px;
  z-index: 900;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(124,58,237,.8);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  cursor: pointer;
}
.scroll-top.visible { opacity: 1; pointer-events: auto; }
.scroll-top:hover { background: var(--color-purple-light); }

/* ------------------------------------------------------------
   PORTAFOLIO — CARRUSEL DE VIDEOS
   ------------------------------------------------------------ */
#portafolio { background: var(--color-bg); }

/* Wrapper con flechas */
.vc-wrap {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 40px;
}

/* Track horizontal con scroll snap */
.vc-track {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  padding: 8px 4px 16px;
  flex: 1;
  /* Ocultar scrollbar */
  scrollbar-width: none;
}
.vc-track::-webkit-scrollbar { display: none; }

/* Tarjeta de video — ancho fijo, proporción 9:16 */
.vc-card {
  flex-shrink: 0;
  width: 270px;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Caja del iframe con relación de aspecto 9:16 */
.vc-iframe-box {
  width: 100%;
  aspect-ratio: 9 / 16;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #000;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}
.vc-iframe-box:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(168,85,247,.5);
}
.vc-iframe-box iframe {
  width: 100%;
  height: 100%;
  display: block;
  border: none;
}

/* Título debajo del video */
.vc-card-title {
  font-size: .82rem;
  font-weight: 600;
  color: var(--color-gray-light);
  text-align: center;
  line-height: 1.4;
  padding: 0 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.vc-plat-icon { font-size: 1rem; }

/* Flechas de navegación */
.vc-arrow {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(168,85,247,.15);
  border: 1px solid var(--color-border);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  z-index: 2;
}
.vc-arrow:hover {
  background: rgba(168,85,247,.35);
  border-color: var(--color-purple-light);
  transform: scale(1.1);
}
.vc-arrow.disabled {
  opacity: .3;
  pointer-events: none;
}

/* Barra de progreso */
.vc-progress-wrap {
  height: 3px;
  background: rgba(255,255,255,.08);
  border-radius: 3px;
  margin-top: 8px;
  overflow: hidden;
}
.vc-progress-bar {
  height: 100%;
  width: 0%;
  background: var(--grad-main);
  border-radius: 3px;
  transition: width .15s ease;
}

/* Responsive */
@media (max-width: 768px) {
  .vc-card  { width: 200px; }
  .vc-arrow { width: 36px; height: 36px; }
  .vc-wrap  { gap: 8px; }
}
.scroll-top svg { width: 20px; height: 20px; stroke: #fff; }