/* =====================================================
   SYNTERA SOFTWARE — HOJA DE ESTILOS PREMIUM
   Paleta: Oscuro Profundo + Detalles Neón (No daña la vista)
   Tipografía: Poppins (títulos) + Inter (texto)
   ===================================================== */

/* -----------------------------------------------------
   1. VARIABLES GLOBALES (Design Tokens - MODO OSCURO)
   ----------------------------------------------------- */
:root {
  /* Colores de fondo profundos */
  --color-bg: #0b131a;            /* Fondo principal — Azul noche oscuro */
  --color-bg-alt: #111c26;        /* Fondo alterno — Para contraste de secciones */
  --color-surface: #162431;       /* Superficie de tarjetas / inputs */
  --color-surface-light: #1e3245; /* Superficie interna con un toque celeste */
  --color-border: #22384d;        /* Bordes sutiles oscuros */

  /* Colores de texto claros */
  --color-text: #f0f6fc;          /* Texto principal — Blanco azulado suave */
  --color-text-muted: #8b9bb4;    /* Texto secundario — Gris azulado sutil */

  /* Acentos celeste que resaltan perfectamente en la oscuridad */
  --color-accent: #00aaff;        /* Celeste principal */
  --color-accent-2: #4da3ff;      /* Celeste claro para degradados */
  --gradient-accent: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));

  /* Tipografía */
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Espaciados y formas */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --container-width: 1200px;
  --transition-base: 0.25s ease;
}

/* -----------------------------------------------------
   2. RESET BÁSICO Y ESTILOS GENERALES
   ----------------------------------------------------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* Foco accesible para navegación por teclado */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* -----------------------------------------------------
   3. UTILIDADES: BOTONES
   ----------------------------------------------------- */
.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base), opacity var(--transition-base);
}

.btn--primary {
  background: var(--gradient-accent);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(0, 170, 255, 0.3);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 170, 255, 0.45);
}

.btn--primary:active {
  transform: translateY(-1px);
}

/* -----------------------------------------------------
   4. HEADER / NAVEGACIÓN
   ----------------------------------------------------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(11, 19, 26, 0.8); /* Fondo oscuro con transparencia */
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.header__container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.logo__bracket {
  color: var(--color-accent);
  font-weight: 700;
}

.logo__highlight {
  color: var(--color-accent);
  font-weight: 800;
}

.nav__list {
  display: flex;
  gap: 36px;
}

.nav__link {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  position: relative;
  padding-bottom: 4px;
  transition: color var(--transition-base);
}

.nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--color-text);
}

.nav__link:hover::after,
.nav__link:focus-visible::after {
  width: 100%;
}

.menu-toggle {
  display: none;
}

.menu-toggle__icon {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 22px;
  cursor: pointer;
  z-index: 110;
}

.menu-toggle__icon span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* -----------------------------------------------------
   5. SECCIÓN HERO
   ----------------------------------------------------- */
.hero {
  position: relative;
  padding: 100px 0 80px;
  overflow: hidden;
  background:
    radial-gradient(circle at 85% 20%, rgba(0, 170, 255, 0.07), transparent 45%),
    radial-gradient(circle at 10% 80%, rgba(94, 211, 255, 0.05), transparent 40%),
    var(--color-bg);
}

.hero__container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero__content {
  text-align: left;
}

.hero__eyebrow {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 18px;
}

.hero__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  line-height: 1.15;
  margin-bottom: 22px;
}

.hero__title--gradient {
  display: block;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__subtitle {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 480px;
  margin-bottom: 36px;
}

.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero__glow {
  position: absolute;
  inset: -20px;
  background: var(--gradient-accent);
  filter: blur(70px);
  opacity: 0.18;
  border-radius: var(--radius-lg);
  z-index: 0;
}

.code-window {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 460px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4);
  overflow: hidden;
  transform: rotate(-1.5deg);
  transition: transform var(--transition-base);
}

.code-window:hover {
  transform: rotate(0deg);
}

.code-window__header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 16px;
  background-color: var(--color-surface-light);
  border-bottom: 1px solid var(--color-border);
}

.code-window__dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.code-window__dot--red { background-color: #ff5f56; }
.code-window__dot--yellow { background-color: #ffbd2e; }
.code-window__dot--green { background-color: #27c93f; }

.code-window__title {
  margin-left: 8px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-family: var(--font-body);
}

.code-window__body {
  padding: 22px 20px;
  font-family: 'Courier New', monospace;
  font-size: 0.85rem;
  line-height: 1.8;
  overflow-x: auto;
  color: #a9b7c6; /* Gris de código típico */
  white-space: pre;
  background-color: #0f1821;
}

.tok-keyword { color: #cc7832; font-weight: 700; }
.tok-var { color: #9876aa; }
.tok-class { color: #ffc66d; font-weight: 700; }
.tok-string { color: #6a8759; }
.tok-fn { color: #ffc66d; }
.tok-comment { color: #808080; font-style: italic; }

.cursor {
  display: inline-block;
  animation: blink 1s steps(1) infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* -----------------------------------------------------
   6. ENCABEZADOS DE SECCIÓN
   ----------------------------------------------------- */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}

.section-header__eyebrow {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section-header__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  margin-bottom: 14px;
}

.section-header__text {
  color: var(--color-text-muted);
  font-size: 1rem;
}

/* -----------------------------------------------------
   7. SECCIÓN SERVICIOS
   ----------------------------------------------------- */
.services {
  padding: 90px 0;
  background-color: var(--color-bg-alt);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.3);
}

.card__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--gradient-accent);
  color: #ffffff;
  margin-bottom: 22px;
}

.card__icon svg {
  width: 26px;
  height: 26px;
}

.card__title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.card__text {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* -----------------------------------------------------
   8. SECCIÓN PORTAFOLIO
   ----------------------------------------------------- */
.portfolio {
  padding: 90px 0;
  background-color: var(--color-bg);
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.portfolio-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.portfolio-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.3);
}

.portfolio-card__media {
  height: 200px;
  width: 100%;
  overflow: hidden;
  background-color: var(--color-surface-light);
}

.portfolio-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.portfolio-card__body {
  padding: 22px 24px;
}

.portfolio-card__title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 8px;
}

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

/* -----------------------------------------------------
   9. SECCIÓN CONTACTO
   ----------------------------------------------------- */
.contact {
  padding: 90px 0;
  background-color: var(--color-bg-alt);
}

.contact-form {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.contact-form__group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.contact-form__label {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.contact-form__input,
.contact-form__textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.contact-form__input::placeholder,
.contact-form__textarea::placeholder {
  color: var(--color-text-muted);
  opacity: 0.6;
}

.contact-form__input:focus,
.contact-form__textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 170, 255, 0.15);
  outline: none;
}

.contact-form__textarea {
  resize: vertical;
  min-height: 140px;
}

.contact-form__submit {
  align-self: flex-start;
}

.contact-form__status {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-accent);
  font-weight: 500;
  min-height: 1.2em;
  margin-top: 5px;
}

/* -----------------------------------------------------
   10. FOOTER
   ----------------------------------------------------- */
.footer {
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding-top: 50px;
}

.footer__container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 36px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
}

.footer__tagline {
  margin-top: 12px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  max-width: 320px;
}

.footer__social {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.footer__social-link {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-base);
}

.footer__social-link:hover,
.footer__social-link:focus-visible {
  color: var(--color-accent);
}

.footer__bottom {
  border-top: 1px solid var(--color-border);
  text-align: center;
  padding: 20px 24px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* -----------------------------------------------------
   11. RESPONSIVE — TABLETS (max-width: 992px)
   ----------------------------------------------------- */
@media (max-width: 992px) {
  .hero__container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .hero__subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__visual {
    margin-top: 40px;
  }

  .cards,
  .portfolio__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* -----------------------------------------------------
   12. RESPONSIVE — MÓVILES (max-width: 768px)
   ----------------------------------------------------- */
@media (max-width: 768px) {

  .menu-toggle__icon {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 72px;
    right: 0;
    width: 70%;
    max-width: 300px;
    height: calc(100vh - 72px);
    background-color: var(--color-bg);
    border-left: 1px solid var(--color-border);
    box-shadow: -8px 0 30px rgba(0, 0, 0, 0.3);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    z-index: 105;
  }

  .nav__list {
    flex-direction: column;
    gap: 0;
    padding: 24px;
  }

  .nav__list li {
    border-bottom: 1px solid var(--color-border);
  }

  .nav__link {
    display: block;
    padding: 16px 4px;
  }

  .nav__link::after {
    display: none;
  }

  .menu-toggle:checked ~ .nav {
    transform: translateX(0);
  }

  .menu-toggle:checked ~ .menu-toggle__icon span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .menu-toggle:checked ~ .menu-toggle__icon span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle:checked ~ .menu-toggle__icon span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .cards,
  .portfolio__grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 70px 0 60px;
  }

  .services,
  .portfolio,
  .contact {
    padding: 60px 0;
  }

  .footer__container {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

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

/* -----------------------------------------------------
   13. PREFERENCIA: REDUCIR MOVIMIENTO
   ----------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background-color: #25d366;
  color: #fff;
  border-radius: 50%;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.15);
  z-index: 999;
  transition: transform 0.2s ease;
}

.whatsapp-float:hover {
  transform: scale(1.08);
}