/* ============================================================
   COMPUTER LINK — Hoja de estilos principal
   styles.css
   
   Índice:
   1. Variables CSS (tokens globales)
   2. Box model + Reset
   3. Utilidades
   4. Navbar
   5. Hero
   6. Botones
   7. Ticker
   8. Sección genérica
   9. Servicios
   10. Stats
   11. Aliados
   12. Clientes
   13. Contacto + Formulario
   14. Footer
   15. Animaciones
   16. Responsive (Media Queries)
============================================================ */


/* ============================================================
   1. VARIABLES CSS — Paleta y tokens globales
============================================================ */
:root {
  /* Colores */
  --color-bg:        #080a0f;
  --color-surface:   #0f1218;
  --color-surface-2: #161b24;
  --color-accent:    #00e5ff;
  --color-accent-2:  #7c4dff;
  --color-text:      #e8eaf0;
  --color-muted:     #6b7385;
  --color-border:    rgba(255, 255, 255, 0.07);

  /* Tipografía */
  --font-display: 'Outfit', sans-serif;
  --font-body:    'DM Sans', sans-serif;

  /* Espaciado y forma */
  --radius-sm: 0.375rem;   /* 6px  */
  --radius-md: 0.75rem;    /* 12px */
  --radius-lg: 1.25rem;    /* 20px */

  /* Transición global */
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);

  /* Ancho máximo del contenedor */
  --max-w: 75rem;          /* 1200px */
}


/* ============================================================
   2. BOX MODEL + RESET
============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  /* Base 16px por defecto; rem escala desde aquí */
  font-size: 100%;
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;          /* 16px */
  line-height: 1.8;         /* más altura para mejor legibilidad */
  overflow-x: hidden;
}

img  { max-width: 100%; display: block; }
a    { text-decoration: none; color: inherit; }
ul   { list-style: none; }


/* ============================================================
   3. UTILIDADES
============================================================ */
.u-container {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.u-accent  { color: var(--color-accent); }
.u-muted   { color: var(--color-muted); }
.u-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}


/* ============================================================
   4. NAVBAR — BEM: .nav
============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.25rem 0;
  background: rgba(8, 10, 15, 0.85);
  backdrop-filter: blur(0.875rem);    /* ~14px */
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

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

.nav__links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav__link {
  font-size: 0.9rem;
  color: var(--color-muted);
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: color var(--transition);
}

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

.nav__cta {
  padding: 0.55rem 1.3rem;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
  font-size: 0.88rem;
  font-weight: 600;
  transition: background var(--transition), color var(--transition);
}

.nav__cta:hover {
  background: var(--color-accent);
  color: #000;
}

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 0.3125rem;     /* 5px */
  cursor: pointer;
  background: none;
  border: none;
  padding: 0.25rem;
}

.nav__burger span {
  display: block;
  width: 1.5rem;      /* 24px */
  height: 0.125rem;   /* 2px */
  background: var(--color-text);
  border-radius: 0.125rem;
  transition: var(--transition);
}


/* ============================================================
   5. HERO — BEM: .hero
============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 6rem;
  position: relative;
  overflow: hidden;
}

/* Fondo decorativo con gradientes radiales */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 10% 50%, rgba(0, 229, 255, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 90% 20%, rgba(124, 77, 255, 0.07) 0%, transparent 60%);
  pointer-events: none;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  width: 100%;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero__eyebrow::before {
  content: '';
  width: 1.75rem;   /* 28px */
  height: 0.0625rem; /* 1px */
  background: var(--color-accent);
}

.hero__title {
  font-family: var(--font-display);
  /* clamp: mínimo 2.8rem, fluido 5vw, máximo 5rem */
  font-size: clamp(2.8rem, 5vw, 5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero__title em {
  font-style: normal;
  color: var(--color-accent);
}

.hero__desc {
  font-size: 1.05rem;
  color: var(--color-muted);
  max-width: 48ch;
  margin-bottom: 2.5rem;
  line-height: 1.9;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero__visual { position: relative; }

/* Tarjeta flotante animada */
.hero__card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  animation: float 6s ease-in-out infinite;
}

.hero__card-badge {
  display: inline-block;
  background: rgba(0, 229, 255, 0.1);
  color: var(--color-accent);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.8rem;
  border-radius: 6.25rem;   /* 100px → píldora */
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.hero__services-list {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;  /* un poco más de espacio entre items */
}

.hero__service-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;     /* ligeramente más grande */
  line-height: 1.5;
  color: var(--color-muted);
}

.hero__service-item::before {
  content: '';
  width: 0.5rem;   /* 8px */
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
}

/* Brillo decorativo detrás de la tarjeta */
.hero__glow {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 21.875rem;   /* 350px */
  height: 21.875rem;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  z-index: -1;
}


/* ============================================================
   6. BOTONES — BEM: .btn
============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.8rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
}

.btn--primary {
  background: var(--color-accent);
  color: #000;
}

.btn--primary:hover {
  background: #33eaff;
  transform: translateY(-0.125rem); /* 2px */
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn--outline:hover {
  border-color: rgba(255, 255, 255, 0.25);
  background: var(--color-surface);
}


/* ============================================================
   7. TICKER — banda de texto en movimiento
============================================================ */
.ticker {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 0;
  overflow: hidden;
}

.ticker__track {
  display: flex;
  gap: 3rem;
  animation: ticker 25s linear infinite;
  white-space: nowrap;
}

.ticker__item {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.ticker__item::after {
  content: '✦';
  color: var(--color-accent);
  font-size: 0.6rem;
}


/* ============================================================
   8. SECCIÓN GENÉRICA
============================================================ */
.section {
  padding: 7rem 0;
}

.section__header {
  margin-bottom: 4rem;
}

.section__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: 1rem;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  max-width: 18ch;
}

.section__desc {
  margin-top: 1rem;
  color: var(--color-muted);
  max-width: 55ch;
  line-height: 1.9;
}


/* ============================================================
   9. SERVICIOS — BEM: .service-card
============================================================ */
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17.5rem, 1fr)); /* 280px */
  gap: 1.5rem;
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

/* Línea de acento superior al hover */
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 0.125rem;  /* 2px */
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover {
  border-color: rgba(0, 229, 255, 0.2);
  transform: translateY(-0.25rem); /* 4px */
  background: var(--color-surface-2);
}

.service-card:hover::before { opacity: 1; }

.service-card__icon {
  width: 3rem;    /* 48px */
  height: 3rem;
  background: rgba(0, 229, 255, 0.08);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.service-card__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 0.75rem;
}

.service-card__desc {
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.8;
}


/* ============================================================
   10. STATS — números impactantes
============================================================ */
.stats {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 4rem 0;
}

.stats__grid {
  display: flex;
  flex-wrap: wrap;
}

.stat {
  flex: 1;
  min-width: 11.25rem;  /* 180px */
  padding: 1.5rem 2rem;
  border-right: 1px solid var(--color-border);
  text-align: center;
}

.stat:last-child { border-right: none; }

.stat__number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1.1;
  display: block;
}

.stat__label {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-top: 0.4rem;
  line-height: 1.5;
}


/* ============================================================
   11. ALIADOS — BEM: .partner-card
============================================================ */
.partners__flex {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.partner-card {
  flex: 1;
  min-width: 12.5rem;   /* 200px */
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: border-color var(--transition);
}

.partner-card:hover { border-color: rgba(0, 229, 255, 0.25); }

.partner-card__icon {
  font-size: 1.8rem;
  flex-shrink: 0;
}

.partner-card__name {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.3rem;
}

.partner-card__desc {
  font-size: 0.875rem;
  color: var(--color-muted);
  line-height: 1.7;
}


/* ============================================================
   12. CLIENTES — BEM: .client-card
============================================================ */
.clients__cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18.75rem, 1fr)); /* 300px */
  gap: 1.5rem;
}

.client-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition);
}

.client-card:hover {
  border-color: rgba(124, 77, 255, 0.3);
  transform: translateY(-0.1875rem); /* 3px */
}

.client-card__emoji  { font-size: 2.5rem; margin-bottom: 1rem; }
.client-card__name   { font-weight: 700; font-size: 1.1rem; margin-bottom: 0.5rem; }
.client-card__desc   { font-size: 0.9rem; color: var(--color-muted); margin-bottom: 1.2rem; line-height: 1.8; }

.client-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  border-radius: 6.25rem;
  background: rgba(124, 77, 255, 0.12);
  color: #a78bfa;
  font-weight: 600;
}


/* ============================================================
   13. CONTACTO + FORMULARIO — BEM: .contact / .form
============================================================ */
.contact {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 4rem;
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

/* Brillo decorativo */
.contact::before {
  content: '';
  position: absolute;
  bottom: -6.25rem; right: -6.25rem;   /* -100px */
  width: 25rem;   /* 400px */
  height: 25rem;
  background: radial-gradient(circle, rgba(124, 77, 255, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

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

.contact__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.contact__desc {
  color: var(--color-muted);
  margin-bottom: 2rem;
  line-height: 1.9;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact__info-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--color-muted);
}

.contact__info-item strong { color: var(--color-text); }

/* Formulario */
.form { display: flex; flex-direction: column; gap: 1rem; }

.form__group { display: flex; flex-direction: column; gap: 0.4rem; }

.form__label {
  font-size: 0.8rem;
  color: var(--color-muted);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.form__input,
.form__textarea {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1rem;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition);
  width: 100%;
}

.form__input:focus,
.form__textarea:focus { border-color: var(--color-accent); }

.form__textarea {
  resize: vertical;
  min-height: 7.5rem;   /* 120px */
}

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


/* ============================================================
   14. FOOTER — BEM: .footer
============================================================ */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 3rem 0;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer__copy {
  font-size: 0.875rem;
  color: var(--color-muted);
}

.footer__socials {
  display: flex;
  gap: 1.5rem;
}

.footer__social {
  font-size: 0.875rem;
  color: var(--color-muted);
  transition: color var(--transition);
}

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


/* ============================================================
   15. ANIMACIONES
============================================================ */

/* Tarjeta flotante del hero */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-0.875rem); } /* 14px */
}

/* Ticker horizontal */
@keyframes ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* Fade-in al hacer scroll */
.fade-in {
  opacity: 0;
  transform: translateY(1.5rem);  /* 24px */
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}


/* ============================================================
   16. RESPONSIVE — Media Queries
   Usamos rem: 1rem = 16px por defecto
   56.25rem = 900px  |  42.5rem = 680px
============================================================ */
@media (max-width: 56.25rem) {
  .hero__grid    { grid-template-columns: 1fr; gap: 3rem; }
  .hero__visual  { order: -1; }
  .contact__grid { grid-template-columns: 1fr; gap: 2rem; }

  .stat {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }
  .stat:last-child { border-bottom: none; }
}

@media (max-width: 42.5rem) {
  .nav__links  { display: none; }
  .nav__burger { display: flex; }
  .contact     { padding: 2rem 1.5rem; }
  .section     { padding: 4rem 0; }
}