:root {
  --primary: #0284c7;  /* High tech bright blue */
  --primary-hover: #0369a1;
  --secondary: #e0f2fe;
  --dark-bg: #0f172a;  /* Deep slate/navy for that tech look */
  --darker-bg: #020617; 
  --text-light: #f8fafc;
  --text-muted: #94a3b8;
  --glass-bg: rgba(30, 41, 59, 0.7);
  --glass-border: rgba(255, 255, 255, 0.1);
  --accent: #38bdf8;
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-body);
  background-color: var(--dark-bg);
  color: var(--text-light);
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 900;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header */
.site-header {
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo-box {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo {
  height: 48px;
  border-radius: 4px;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 1px;
  color: #fff;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav a {
  color: var(--text-light);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.3s;
}

.nav a:hover {
  color: var(--accent);
}

.btn-outline {
  border: 1px solid var(--accent);
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  color: var(--accent) !important;
}
.btn-outline:hover {
  background: var(--accent);
  color: #000 !important;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  background: url('https://images.unsplash.com/photo-1565153207094-1a5223075fb8?w=1920&q=80&auto=format&fit=crop') center/cover no-repeat;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(2,6,23,0.95) 0%, rgba(15,23,42,0.85) 50%, rgba(2,132,199,0.3) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.badge {
  display: inline-block;
  padding: 0.25rem 1rem;
  background: rgba(56, 189, 248, 0.1);
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.hero h1 {
  font-size: 4rem;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.text-gradient {
  background: linear-gradient(to right, #38bdf8, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
}

.cta, .cta-secondary, .cta-submit {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.cta, .cta-submit {
  background: var(--primary);
  color: #fff;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 1rem;
}

.cta:hover, .cta-submit:hover {
  background: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(2, 132, 199, 0.4);
}

.cta-secondary {
  background: transparent;
  color: var(--text-light);
  border: 1px solid var(--glass-border);
}

.cta-secondary:hover {
  background: rgba(255,255,255,0.05);
  border-color: var(--text-muted);
}

/* Sections General */
section {
  padding: 6rem 0;
}

.section-title {
  margin-bottom: 4rem;
}

.section-title h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.section-title span {
  color: var(--accent);
}

.section-title p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.text-center {
  text-align: center;
}

/* Servicios */
.servicios {
  background: var(--darker-bg);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
  border-color: rgba(56, 189, 248, 0.3);
}

.card-img-wrapper {
  position: relative;
  height: 220px;
}

.card-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.card:hover .card-img-wrapper img {
  transform: scale(1.05);
}

.card-icon {
  position: absolute;
  bottom: -24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background: var(--primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 20px rgba(2, 132, 199, 0.3);
}

.card-content {
  padding: 2.5rem 2rem 2rem;
}

.card-content h3 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.card-content p {
  color: var(--text-muted);
}

/* Clientes */
.clientes {
  background: var(--dark-bg);
  border-bottom: 1px solid var(--glass-border);
}

.client-logos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.client-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 3rem 2rem;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  transition: background 0.3s;
}

.client-card:hover {
  background: rgba(255,255,255,0.05);
}

.brand-icon {
  color: var(--text-muted);
  display: flex;
  gap: -5px; /* for audi rings overlap effect approx */
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: #fff;
}

/* Contacto */
.contacto {
  background: var(--darker-bg);
  position: relative;
  overflow: hidden;
}

/* Background blob */
.contacto::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(2,132,199,0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: center;
}

.contact-info h2 {
  font-size: 3rem;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.contact-info p {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 3rem;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.info-item i {
  color: var(--accent);
}

.contact-form-box {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 3rem;
  border-radius: 20px;
  box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
  backdrop-filter: blur(10px);
}

.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.contact-form input, .contact-form textarea {
  width: 100%;
  padding: 1rem;
  background: rgba(0,0,0,0.2);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: #fff;
  font-family: var(--font-body);
  transition: border-color 0.3s, background 0.3s;
}

.contact-form input:focus, .contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(0,0,0,0.4);
}

.cta-submit {
  grid-column: 1 / -1;
  justify-content: center;
  width: 100%;
  margin-top: 1rem;
}

.alert {
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
}

.success {
  background: rgba(16, 185, 129, 0.1);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.error {
  background: rgba(239, 68, 68, 0.1);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Footer */
.site-footer {
  background: #020617;
  padding: 3rem 0;
  border-top: 1px solid var(--glass-border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.footer-logo {
  height: 40px;
  border-radius: 4px;
}

.footer-brand p {
  font-family: var(--font-heading);
  font-weight: 700;
  color: #fff;
}

.footer-copy {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* WhatsApp Float */
.whatsapp-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, #25D366, #128C7E);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 20px rgba(37,211,102,0.4);
  z-index: 999;
  transition: transform 0.3s, box-shadow 0.3s;
}

.whatsapp-float:hover {
  transform: scale(1.1) translateY(-5px);
  box-shadow: 0 15px 30px rgba(37,211,102,0.6);
}

/* Responsive */
@media (max-width: 900px) {
  .hero h1 { font-size: 3rem; }
  .contact-wrapper { grid-template-columns: 1fr; gap: 3rem; }
  .nav { display: none; }
}

@media (max-width: 600px) {
  .hero h1 { font-size: 2.2rem; }
  .hero-actions { flex-direction: column; }
  .contact-form { grid-template-columns: 1fr; }
  .section-title h2 { font-size: 2rem; }
}