@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Serif:wght@600&family=Inter:wght@400;600;700&display=swap');

:root {
  --color-primary: #1a3a52;
  --color-secondary: #2d5a7e;
  --color-accent: #00a8e8;
  --color-bg: #f8f9fb;
  --color-text: #1a1a1a;
  --color-text-light: #555555;

  --font-heading: 'IBM Plex Serif', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --size-h1: clamp(2.5rem, 10vw, 4.5rem);
  --size-h2: clamp(1.75rem, 5vw, 2.75rem);
  --size-h3: clamp(1.1rem, 2vw, 1.4rem);
  --size-body: clamp(0.95rem, 2vw, 1.05rem);

  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #0f1419;
    --color-text: #f0f0f0;
    --color-text-light: #aaaaaa;
  }
}

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

html { scroll-behavior: smooth; }

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

.demo-notice {
  background: var(--color-bg);
  border-bottom: 3px solid var(--color-accent);
  padding: clamp(0.75rem, 2vw, 1.25rem);
  text-align: center;
  font-size: clamp(0.85rem, 1.5vw, 0.95rem);
  position: sticky;
  top: 0;
  z-index: 100;
}

header {
  position: sticky;
  top: 4.5rem;
  z-index: 99;
  background: var(--color-bg);
  border-bottom: 1px solid #e0e0e0;
  opacity: 0.98;
}

.navbar {
  max-width: 1400px;
  margin: 0 auto;
  padding: clamp(1rem, 3vw, 1.5rem) clamp(1rem, 4vw, 2rem);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-brand {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  color: var(--color-primary);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: clamp(1.5rem, 3vw, 3rem);
}

.nav-links a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 600;
  font-size: clamp(0.9rem, 1.5vw, 1rem);
  transition: color var(--duration-normal) ease;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--duration-normal) ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: white;
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 6vw, 4rem);
  border-bottom: 6px solid var(--color-accent);
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-svg {
  width: 100%;
  height: 100%;
  color: var(--color-accent);
}

.bg-grid {
  animation: gridFade 6s ease-in-out infinite;
}

.pulse-circle {
  animation: pulseRing 3s ease-in-out infinite;
}

.pulse-2 {
  animation-delay: 0.5s;
}

@keyframes gridFade {
  0%, 100% { opacity: 0.1; }
  50% { opacity: 0.2; }
}

@keyframes pulseRing {
  0%, 100% { r: 100; opacity: 0.3; }
  50% { r: 150; opacity: 0.1; }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: var(--size-h1);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
  line-height: 1.1;
}

.hero-char {
  display: inline-block;
  opacity: 0;
  animation: revealChar 0.4s ease-out forwards;
}

@keyframes revealChar {
  from {
    opacity: 0;
    transform: rotateX(90deg);
  }
  to {
    opacity: 1;
    transform: rotateX(0deg);
  }
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2.5vw, 1.4rem);
  margin-bottom: clamp(2rem, 4vw, 3rem);
  opacity: 0.95;
  line-height: 1.8;
  animation: slideUp 0.8s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.cta-button {
  display: inline-block;
  padding: clamp(0.875rem, 2vw, 1.25rem) clamp(2rem, 4vw, 3.5rem);
  background: var(--color-accent);
  color: var(--color-primary);
  border: 2px solid var(--color-accent);
  border-radius: 4px;
  font-family: var(--font-body);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--duration-normal) ease;
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  position: relative;
}

.cta-button:hover {
  background: transparent;
  color: var(--color-accent);
  transform: scale(1.05);
}

section {
  padding: clamp(3rem, 8vw, 6rem) clamp(1.5rem, 5vw, 3rem);
  max-width: 1400px;
  margin: 0 auto;
}

.section-content {
  max-width: 100%;
}

h2 {
  font-family: var(--font-heading);
  font-size: var(--size-h2);
  font-weight: 600;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
  text-align: center;
}

.about {
  background: white;
}

.about p {
  text-align: center;
  max-width: 750px;
  margin: 0 auto;
  font-size: var(--size-body);
  line-height: 2;
  color: var(--color-text-light);
}

.servicios {
  background: var(--color-bg);
}

.servicios-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: clamp(2rem, 4vw, 3rem);
  margin-top: clamp(2.5rem, 4vw, 4rem);
}

.service-card {
  padding: clamp(2rem, 4vw, 2.75rem);
  background: white;
  border-left: 4px solid var(--color-secondary);
  border-radius: 8px;
  text-align: left;
  transition: all var(--duration-normal) ease;
}

.service-card:hover {
  transform: translateY(-8px);
  border-left-color: var(--color-accent);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.service-icon {
  width: 60px;
  height: 60px;
  margin-bottom: 1.5rem;
  color: var(--color-accent);
}

.service-card h3 {
  font-family: var(--font-heading);
  font-size: var(--size-h3);
  margin-bottom: 0.75rem;
  color: var(--color-primary);
}

.service-card p {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

.funcionalidades {
  background: white;
}

.features-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: clamp(2rem, 4vw, 3rem);
  margin-top: clamp(2.5rem, 4vw, 4rem);
}

.feature {
  padding: clamp(1.75rem, 3vw, 2.5rem);
  background: var(--color-bg);
  border-radius: 8px;
  border-left: 4px solid var(--color-accent);
  display: flex;
  gap: 1.5rem;
}

.feature-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-accent);
  color: white;
  border-radius: 50%;
  flex-shrink: 0;
  font-weight: bold;
}

.feature h3 {
  font-family: var(--font-heading);
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

.feature p {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

.porquenos {
  background: var(--color-bg);
}

.reasons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: clamp(2rem, 4vw, 3rem);
  margin-top: clamp(2.5rem, 4vw, 4rem);
}

.reason {
  text-align: center;
  padding: clamp(2rem, 3vw, 2.5rem);
  background: white;
  border-radius: 8px;
}

.reason-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto clamp(1rem, 2vw, 1.5rem);
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 600;
  color: white;
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.reason h3 {
  font-family: var(--font-heading);
  font-size: var(--size-h3);
  margin-bottom: 0.75rem;
  color: var(--color-primary);
}

.reason p {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.8;
}

.contacto {
  background: var(--color-primary);
  color: white;
}

.contacto h2 {
  color: white;
}

.contact-intro {
  text-align: center;
  font-size: var(--size-body);
  max-width: 600px;
  margin: 0 auto clamp(2rem, 4vw, 3rem);
  color: rgba(255, 255, 255, 0.9);
}

.contact-methods {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(1rem, 2vw, 1.5rem);
  margin-bottom: clamp(2.5rem, 4vw, 3.5rem);
}

.contact-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: clamp(0.875rem, 2vw, 1.1rem) clamp(1.5rem, 3vw, 2.25rem);
  background: var(--color-accent);
  color: var(--color-primary);
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
  transition: all var(--duration-normal) ease;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: clamp(0.85rem, 1.5vw, 0.95rem);
}

.contact-btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.contact-btn.whatsapp {
  background: #25d366;
  color: white;
}

.contact-btn.whatsapp:hover {
  background: #20ba5a;
  color: white;
}

.demo-form {
  max-width: 500px;
  margin: 0 auto;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
}

.form-label {
  text-align: center;
  font-size: 0.85rem;
  margin-bottom: 1.5rem;
  font-style: italic;
  color: rgba(255, 255, 255, 0.8);
}

.form-input {
  width: 100%;
  padding: clamp(0.75rem, 2vw, 1rem);
  margin-bottom: 1rem;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 4px;
  font-family: var(--font-body);
  color: white;
}

.form-input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.form-submit {
  width: 100%;
  padding: clamp(0.875rem, 2vw, 1.1rem);
  background: var(--color-accent);
  color: var(--color-primary);
  border: none;
  border-radius: 4px;
  font-weight: 600;
  text-transform: uppercase;
  cursor: not-allowed;
  opacity: 0.6;
}

.footer {
  background: var(--color-primary);
  color: white;
  text-align: center;
  padding: clamp(2rem, 4vw, 3rem);
  border-top: 2px solid var(--color-accent);
}

.footer p {
  margin: 0.5rem 0;
  font-size: 0.95rem;
}

.footer a {
  color: var(--color-accent);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

@supports (animation-timeline: view()) {
  section:not(.hero):not(.contacto) {
    animation: revealSection linear both;
    animation-timeline: view();
    animation-range: entry 0% cover 25%;
  }

  @keyframes revealSection {
    from {
      opacity: 0;
      transform: translateY(40px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

@media (max-width: 768px) {
  section {
    padding: clamp(2rem, 6vw, 3.5rem) clamp(1rem, 3vw, 1.5rem);
  }

  .nav-links {
    gap: clamp(1rem, 2vw, 1.5rem);
  }

  .servicios-grid,
  .features-list,
  .reasons-grid {
    grid-template-columns: 1fr;
  }

  .contact-methods {
    flex-direction: column;
    align-items: stretch;
  }

  .contact-btn {
    width: 100%;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}