/* ============================================================
   NovaCode Pro — Sistema de diseño
   Paleta: Dark mode + Azul eléctrico
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  /* Colores */
  --bg-base:       #07070f;
  --bg-surface:    #0e0e1a;
  --bg-elevated:   #14141f;
  --bg-border:     #1e1e2e;

  --blue-500:      #2563eb;
  --blue-400:      #3b82f6;
  --blue-300:      #60a5fa;
  --blue-glow:     rgba(37, 99, 235, 0.35);
  --cyan-400:      #22d3ee;

  --text-primary:  #f1f5f9;
  --text-secondary:#94a3b8;
  --text-muted:    #475569;

  /* Tipografía */
  --font-sans:     'Inter', system-ui, -apple-system, sans-serif;
  --text-xs:       0.75rem;
  --text-sm:       0.875rem;
  --text-base:     1rem;
  --text-lg:       1.125rem;
  --text-xl:       1.25rem;
  --text-2xl:      1.5rem;
  --text-3xl:      1.875rem;
  --text-4xl:      2.25rem;
  --text-5xl:      3rem;
  --text-6xl:      3.75rem;

  /* Espaciado */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Bordes */
  --radius-sm:  0.375rem;
  --radius-md:  0.625rem;
  --radius-lg:  1rem;
  --radius-xl:  1.25rem;
  --radius-full: 9999px;

  /* Sombras */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.4);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.5);
  --shadow-blue: 0 0 32px rgba(37, 99, 235, 0.25);

  /* Transiciones */
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul { list-style: none; }
textarea { resize: vertical; }

/* ---------- Utilidades ---------- */
.accent { color: var(--blue-400); }

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* ---------- NAV ---------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-4) 0;
  transition: background var(--transition), box-shadow var(--transition);
}

.nav.scrolled {
  background: rgba(7, 7, 15, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--bg-border);
}

.nav__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.nav__logo {
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  transition: opacity var(--transition);
}
.nav__logo:hover { opacity: 0.85; }

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.nav__link:hover { color: var(--text-primary); }

.nav__link--cta {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-5);
  background: var(--blue-500);
  color: #fff;
  border-radius: var(--radius-full);
  font-weight: 600;
  transition: background var(--transition), box-shadow var(--transition);
}
.nav__link--cta:hover {
  background: var(--blue-400);
  box-shadow: var(--shadow-blue);
  color: #fff;
}

/* Hamburger */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}
.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: var(--radius-full);
  transition: transform var(--transition), opacity var(--transition);
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
}

.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37, 99, 235, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 100%);
}

.hero__glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(ellipse at center, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero__content {
  position: relative;
  max-width: 780px;
  padding: var(--space-20) 0;
  text-align: center;
  margin: 0 auto;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: rgba(37, 99, 235, 0.12);
  border: 1px solid rgba(37, 99, 235, 0.25);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--blue-300);
  margin-bottom: var(--space-8);
}

.badge__dot {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: var(--radius-full);
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.6);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero__title {
  font-size: clamp(var(--text-4xl), 7vw, var(--text-6xl));
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
}

.hero__title--accent {
  background: linear-gradient(135deg, var(--blue-400) 0%, var(--cyan-400) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__description {
  font-size: var(--text-xl);
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto var(--space-10);
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-16);
}

/* ---------- BOTONES ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--text-base);
  font-weight: 600;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.btn:focus-visible {
  outline: 2px solid var(--blue-400);
  outline-offset: 2px;
}

.btn--primary {
  background: var(--blue-500);
  color: #fff;
  padding: var(--space-4) var(--space-8);
}
.btn--primary:hover {
  background: var(--blue-400);
  box-shadow: var(--shadow-blue);
  transform: translateY(-1px);
}
.btn--primary:active { transform: translateY(0); }

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--bg-border);
  padding: var(--space-4) var(--space-8);
}
.btn--ghost:hover {
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.04);
}

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

/* ---------- STATS ---------- */
.hero__stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}

.stat__number {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.stat__label {
  font-size: var(--text-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stat__divider {
  width: 1px;
  height: 36px;
  background: var(--bg-border);
}

/* ---------- SECCIONES GENERALES ---------- */
.section {
  padding: var(--space-24) 0;
}

.section--alt {
  background: var(--bg-surface);
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-16);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.section__label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--blue-400);
  margin-bottom: var(--space-3);
}

.section__title {
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

.section__description {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---------- CARDS / SERVICIOS ---------- */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.card {
  position: relative;
  padding: var(--space-8);
  background: var(--bg-surface);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-xl);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: var(--shadow-blue);
  transform: translateY(-4px);
}

.card--featured {
  border-color: rgba(37, 99, 235, 0.5);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.08) 0%, var(--bg-surface) 60%);
}

.card__badge {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  padding: var(--space-1) var(--space-3);
  background: var(--blue-500);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
}

.card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: rgba(37, 99, 235, 0.12);
  border-radius: var(--radius-md);
  color: var(--blue-400);
  margin-bottom: var(--space-5);
}

.card__title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
  letter-spacing: -0.01em;
}

.card__description {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-5);
}

.card__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.card__list li {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  padding-left: var(--space-5);
  position: relative;
}

.card__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--blue-400);
  border-radius: var(--radius-full);
}

/* ---------- PROCESO ---------- */
.process__grid {
  display: flex;
  align-items: flex-start;
  gap: 0;
}

.process__step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 var(--space-4);
}

.process__number {
  font-size: var(--text-4xl);
  font-weight: 800;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--blue-500), var(--cyan-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-4);
  line-height: 1;
}

.process__title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.process__description {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

.process__connector {
  flex: 0 0 40px;
  height: 2px;
  background: linear-gradient(90deg, var(--blue-500), var(--cyan-400));
  margin-top: 24px;
  opacity: 0.4;
}

/* ---------- TESTIMONIOS ---------- */
.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.testimonial {
  padding: var(--space-8);
  background: var(--bg-surface);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  transition: border-color var(--transition), transform var(--transition);
}

.testimonial:hover {
  border-color: rgba(37, 99, 235, 0.25);
  transform: translateY(-2px);
}

.testimonial__stars {
  display: flex;
  gap: var(--space-1);
  color: #f59e0b;
}

.testimonial__quote {
  font-size: var(--text-base);
  color: var(--text-primary);
  line-height: 1.7;
  font-style: italic;
  flex: 1;
}

.testimonial__author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial__avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--blue-500), var(--cyan-400));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.testimonial__name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.testimonial__role {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

/* ---------- CTA / CONTACTO ---------- */
.cta-section {
  position: relative;
  overflow: hidden;
}

.cta-section__glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 500px;
  background: radial-gradient(ellipse at center, rgba(37, 99, 235, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.cta__content {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.cta__title {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

.cta__description {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  margin-bottom: var(--space-10);
}

/* ---------- FORMULARIO ---------- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  text-align: left;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form__label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
}

.form__input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--bg-elevated);
  border: 1px solid var(--bg-border);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form__input::placeholder { color: var(--text-muted); }

.form__input:focus {
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form__input.error {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form__textarea { min-height: 120px; }

.form__note {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-top: calc(-1 * var(--space-2));
}

/* Éxito */
.form__success {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-12) var(--space-8);
  color: var(--blue-400);
  text-align: center;
}

.form__success[hidden] { display: none; }

.form__success h3 {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text-primary);
}

.form__success p {
  color: var(--text-secondary);
}

/* ---------- FOOTER ---------- */
.footer {
  padding: var(--space-12) 0 var(--space-8);
  border-top: 1px solid var(--bg-border);
  background: var(--bg-surface);
}

.footer__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.footer__tagline {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-top: var(--space-2);
}

.footer__links {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.footer__link {
  font-size: var(--text-sm);
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer__link:hover { color: var(--text-primary); }

.footer__bottom {
  font-size: var(--text-xs);
  color: var(--text-muted);
  text-align: center;
  padding-top: var(--space-6);
  border-top: 1px solid var(--bg-border);
}

/* ---------- RESPONSIVE ---------- */

/* Tablet */
@media (max-width: 900px) {
  .services__grid,
  .testimonials__grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }

  .process__grid {
    flex-direction: column;
    align-items: flex-start;
    max-width: 480px;
    margin: 0 auto;
    gap: var(--space-8);
  }

  .process__step {
    flex-direction: row;
    text-align: left;
    gap: var(--space-5);
    padding: 0;
    width: 100%;
  }

  .process__number {
    flex-shrink: 0;
    font-size: var(--text-3xl);
    margin-bottom: 0;
  }

  .process__connector {
    width: 2px;
    height: 32px;
    background: linear-gradient(180deg, var(--blue-500), var(--cyan-400));
    margin: 0 0 0 12px;
    flex: none;
  }
}

/* Mobile */
@media (max-width: 640px) {
  .container { padding: 0 var(--space-4); }

  .nav__links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(7, 7, 15, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-direction: column;
    gap: 0;
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--bg-border);
    transform: translateY(-120%);
    opacity: 0;
    transition: transform var(--transition), opacity var(--transition);
    pointer-events: none;
  }

  .nav__links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav__link {
    display: block;
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-base);
    border-bottom: 1px solid var(--bg-border);
  }

  .nav__link--cta {
    display: inline-flex;
    margin: var(--space-4) var(--space-6) 0;
    border-radius: var(--radius-full);
    border: none;
  }

  .nav__toggle { display: flex; }

  .hero__content { padding: var(--space-12) 0; }

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

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

  .hero__stats {
    gap: var(--space-4);
    flex-wrap: nowrap;
  }

  .stat__number { font-size: var(--text-xl); }

  .form__row { grid-template-columns: 1fr; }

  .footer__content {
    flex-direction: column;
    align-items: flex-start;
  }

  .section { padding: var(--space-16) 0; }
}

/* Accesibilidad: reducir animaciones */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}