/* ==========================================================================
   LZ IT — styles.css
   Estructura: 1) Variables  2) Reset  3) Utilidades  4) Header
   5) Hero  6) Secciones genéricas  7) Componentes (cards, timeline, score,
   scope, sla, chips, form)  8) Footer  9) WhatsApp flotante  10) Media queries
   Metodología de nombres: kebab-case + BEM ligero (.bloque__elemento--modificador)
   Mobile-first: estilos base para 375px, @media (min-width) para tablet/desktop
   ========================================================================== */

/* ===== 1) VARIABLES ===== */
:root {
  /* Paleta corporativa */
  --color-marino-950: #0A1628;
  --color-marino-800: #14263F;
  --color-marino-700: #1E3A5F;

  --color-gris-100: #F5F6F8;
  --color-gris-300: #D9DDE3;
  --color-gris-600: #6B7280;
  --color-gris-900: #1A1D23;

  --color-acento: #0EA5B0;
  --color-acento-hover: #0C8891;

  --color-blanco: #FFFFFF;
  --color-exito: #2E7D5B;
  --color-error: #B3453A;
  --color-whatsapp: #25D366;

  /* Tipografía */
  --font-base: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;
  --fs-h1: 2rem;
  --fs-h2: 1.6rem;
  --fs-h3: 1.125rem;
  --fs-body: 1rem;
  --fs-small: 0.875rem;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 760px;
  --radius: 3px;
  --radius-pill: 999px;
  --transition: 0.2s ease;

  /* Sombras duras con offset (estilo "expediente / ficha apilada"), no blur difuso */
  --shadow-card: 7px 7px 0 rgba(10, 22, 40, 0.9);
  --shadow-card-sm: 4px 4px 0 rgba(10, 22, 40, 0.9);
  --shadow-card-hover: 3px 3px 0 rgba(10, 22, 40, 0.9);
  --shadow-accent: 6px 6px 0 rgba(14, 165, 176, 0.35);
}

/* ===== 2) RESET ===== */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-base);
  font-size: var(--fs-body);
  color: var(--color-gris-900);
  background-color: var(--color-blanco);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }

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

ul { list-style: none; margin: 0; padding: 0; }

button { font-family: inherit; cursor: pointer; }

h1, h2, h3, p { margin: 0; }

/* Respeta preferencia de movimiento reducido */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

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

/* ===== 3) UTILIDADES ===== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

.container--narrow { max-width: var(--container-narrow); }

.grid {
  display: grid;
  gap: 24px;
}

.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: repeat(2, 1fr); }

.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: var(--fs-body);
  text-align: center;
  border: 2px solid var(--color-marino-950);
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition);
}

.btn--primary {
  background-color: var(--color-acento);
  color: var(--color-marino-950);
  border-color: var(--color-marino-950);
  box-shadow: var(--shadow-card-sm);
}
.btn--primary:hover {
  background-color: var(--color-acento-hover);
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgba(10, 22, 40, 0.9);
}
.btn--primary:active { transform: translate(4px, 4px); box-shadow: none; }

.btn--outline {
  background-color: transparent;
  border-color: var(--color-blanco);
  color: var(--color-blanco);
  box-shadow: 4px 4px 0 rgba(255, 255, 255, 0.2);
}
.btn--outline:hover {
  background-color: rgba(255,255,255,0.08);
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgba(255, 255, 255, 0.2);
}
.btn--outline:active { transform: translate(4px, 4px); box-shadow: none; }

.btn--block { width: 100%; }

.section { padding: 64px 0; }
.section--light { background-color: var(--color-gris-100); }
.section--dark {
  background-color: var(--color-marino-950);
  color: var(--color-blanco);
}

.section__eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-small);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-marino-700);
  margin-bottom: 12px;
}
.section__eyebrow--inverse { color: var(--color-gris-300); }

.section__eyebrow-index {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-blanco);
  background-color: var(--color-marino-950);
  padding: 3px 7px;
  letter-spacing: 0;
}
.section__eyebrow--inverse .section__eyebrow-index {
  background-color: var(--color-acento);
  color: var(--color-marino-950);
}

.section__title {
  font-size: var(--fs-h2);
  font-weight: 800;
  color: var(--color-marino-700);
  margin-bottom: 16px;
}
.section__title--inverse { color: var(--color-blanco); }

.section__lead {
  font-size: 1.05rem;
  color: var(--color-gris-600);
  max-width: 640px;
  margin-bottom: 32px;
}
.section__lead--inverse { color: var(--color-gris-300); }

/* Animación de aparición al hacer scroll (clase alternada por JS) */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 4) HEADER ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-marino-950);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.header__logo {
  display: flex;
  align-items: baseline;
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--color-blanco);
}
.header__logo-mark { color: var(--color-acento); }

.header__toggle {
  background: none;
  border: none;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.header__toggle-bar {
  width: 24px;
  height: 2px;
  background-color: var(--color-blanco);
  transition: transform var(--transition), opacity var(--transition);
}
.header__toggle[aria-expanded="true"] .header__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.header__toggle[aria-expanded="true"] .header__toggle-bar:nth-child(2) { opacity: 0; }
.header__toggle[aria-expanded="true"] .header__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.header__nav {
  position: absolute;
  top: 72px;
  left: 0;
  right: 0;
  background-color: var(--color-marino-950);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition);
}
.header__nav.is-open { max-height: 500px; }

.header__menu {
  display: flex;
  flex-direction: column;
  padding: 8px 20px 20px;
}

.header__link {
  display: block;
  padding: 12px 0;
  color: var(--color-gris-300);
  font-size: var(--fs-body);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: color var(--transition);
}
.header__link:hover { color: var(--color-blanco); }
.header__link--cta { color: var(--color-acento); font-weight: 700; }

/* ===== 5) HERO ===== */
.hero {
  background-color: var(--color-marino-950);
  color: var(--color-blanco);
  padding: 72px 0 88px;
}

.hero__inner { max-width: 720px; }

.hero__eyebrow {
  color: var(--color-acento);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: var(--fs-small);
  margin-bottom: 16px;
}

.hero__title {
  font-size: var(--fs-h1);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero__subtitle {
  font-size: 1.05rem;
  color: var(--color-gris-300);
  margin-bottom: 32px;
  max-width: 560px;
}

.hero__ctas {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 20px;
}

.hero__note {
  font-size: var(--fs-small);
  color: var(--color-gris-600);
}

/* ===== 6) CARDS (Problemas) ===== */
.card {
  background-color: var(--color-blanco);
  border: 2px solid var(--color-marino-950);
  border-top: 4px solid var(--color-acento);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translate(3px, 3px);
  box-shadow: var(--shadow-card-hover);
}
.card__icon {
  width: 34px;
  height: 34px;
  display: block;
  margin-bottom: 18px;
  color: var(--color-marino-950);
}
.card__title {
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--color-marino-700);
  margin-bottom: 8px;
}
.card__text {
  color: var(--color-gris-600);
  font-size: 0.95rem;
}

/* ===== Filosofía / cita ===== */
.quote {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-blanco);
  background-color: var(--color-marino-800);
  border: 2px solid var(--color-acento);
  box-shadow: var(--shadow-accent);
  padding: 32px;
  font-style: normal;
  line-height: 1.5;
  position: relative;
}
.quote::before {
  content: '\201C';
  position: absolute;
  top: -6px;
  left: 20px;
  font-family: var(--font-mono);
  font-size: 3rem;
  color: var(--color-acento);
  background-color: var(--color-marino-950);
  line-height: 1;
  padding: 0 8px;
}

/* ===== 7) TIMELINE (LZ CARE) ===== */
.timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  counter-reset: paso;
  position: relative;
}

.timeline__step {
  position: relative;
  padding: 24px 20px 20px;
  background-color: var(--color-blanco);
  border: 2px solid var(--color-marino-950);
  box-shadow: var(--shadow-card-sm);
}

.timeline__marker {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  background-color: var(--color-marino-950);
  color: var(--color-acento);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 18px;
}

.timeline__title {
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--color-marino-700);
  margin-bottom: 6px;
}

.timeline__text {
  color: var(--color-gris-600);
  font-size: 0.95rem;
}

@media (min-width: 768px) {
  .timeline__step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 44px;
    right: -28px;
    width: 28px;
    height: 2px;
    background-color: var(--color-marino-950);
    z-index: 1;
  }
}

/* ===== LZ SCORE ===== */
.section--score {
  background-color: var(--color-marino-950);
  padding: 72px 0;
}

.score {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
  text-align: center;
}

.score__gauge-wrap {
  position: relative;
  width: 260px;
  padding: 24px 10px 18px;
  background-color: var(--color-marino-800);
  border: 2px solid var(--color-acento);
  box-shadow: var(--shadow-accent);
}

.score__gauge-track {
  fill: none;
  stroke: rgba(255,255,255,0.14);
  stroke-width: 12;
  stroke-linecap: butt;
}

.score__gauge-value {
  fill: none;
  stroke: var(--color-acento);
  stroke-width: 12;
  stroke-linecap: butt;
  transition: stroke-dasharray 1s ease;
}

.score__gauge-ticks line {
  stroke: var(--color-gris-600);
  stroke-width: 2;
}

.score__gauge-number {
  position: absolute;
  left: 50%;
  bottom: 30px;
  transform: translateX(-50%);
  font-family: var(--font-mono);
}
.score__value {
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--color-blanco);
}
.score__max {
  font-size: 1.1rem;
  color: var(--color-gris-600);
}
.score__gauge-caption {
  color: var(--color-acento);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-align: center;
  margin-top: 8px;
}

.score__content { max-width: 560px; }

.score__text {
  color: var(--color-gris-300);
  margin-bottom: 20px;
}

.score__domains {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: 28px;
  text-align: left;
}
.score__domains li {
  color: var(--color-blanco);
  font-size: 0.95rem;
  padding-left: 20px;
  position: relative;
}
.score__domains li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 8px;
  height: 8px;
  background-color: var(--color-acento);
}

/* ===== INCLUYE / NO INCLUYE ===== */
.scope-card {
  background-color: var(--color-blanco);
  border-radius: var(--radius);
  padding: 28px 24px;
  border: 2px solid var(--color-marino-950);
  box-shadow: var(--shadow-card);
}
.scope-card__title {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid currentColor;
}
.scope-card__title--yes { color: var(--color-exito); }
.scope-card__title--no { color: var(--color-error); }

.scope-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  color: var(--color-gris-900);
  font-size: 0.95rem;
  border-bottom: 1px solid var(--color-gris-100);
}
.scope-list li:last-child { border-bottom: none; }

.scope-list__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}
.scope-list__icon--yes { color: var(--color-exito); }
.scope-list__icon--no { color: var(--color-error); }

/* ===== SLA ===== */
.sla-card {
  background-color: var(--color-marino-800);
  border: 2px solid var(--color-blanco);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.35);
}
.sla-card__badge {
  display: inline-block;
  padding: 5px 12px;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 16px;
  color: var(--color-blanco);
}
.sla-card__badge--critica { background-color: var(--color-error); }
.sla-card__badge--alta { background-color: #C4622D; }
.sla-card__badge--media { background-color: var(--color-acento); color: var(--color-marino-950); }
.sla-card__badge--baja { background-color: var(--color-gris-600); }

.sla-card__time {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-blanco);
}

.sla-hours {
  text-align: center;
  margin-top: 32px;
  color: var(--color-gris-300);
  font-size: 0.95rem;
}

/* ===== CHIPS ===== */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.chip {
  display: inline-block;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  background-color: var(--color-blanco);
  border: 2px solid var(--color-marino-950);
  color: var(--color-marino-700);
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: 3px 3px 0 rgba(10, 22, 40, 0.9);
}
.chip--accent {
  border-color: var(--color-acento);
  color: var(--color-acento);
  box-shadow: 3px 3px 0 rgba(14, 165, 176, 0.4);
}

/* ===== FORMULARIO ===== */
.form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 8px;
}

.form__row { display: flex; flex-direction: column; gap: 6px; }
.form__row--full { grid-column: 1 / -1; }

.form__label {
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--color-gris-300);
}

.form__input {
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 2px solid var(--color-gris-600);
  background-color: rgba(255,255,255,0.04);
  color: var(--color-blanco);
  font-family: inherit;
  font-size: var(--fs-body);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form__input::placeholder { color: var(--color-gris-600); }
.form__input:focus { border-color: var(--color-acento); box-shadow: 3px 3px 0 rgba(14, 165, 176, 0.3); }
.form__input.is-invalid { border-color: var(--color-error); }

.form__textarea { resize: vertical; min-height: 100px; }

.form__error {
  font-size: 0.8rem;
  color: #E08A80;
  min-height: 1em;
}

.form__confirmation {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 10px;
  background-color: rgba(46, 125, 91, 0.15);
  border: 2px solid var(--color-exito);
  box-shadow: 5px 5px 0 rgba(46, 125, 91, 0.3);
  color: #8FD9B6;
  padding: 16px;
  border-radius: var(--radius);
  font-weight: 600;
}

.form__confirmation-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: #8FD9B6;
}

/* ===== FOOTER ===== */
.footer {
  background-color: var(--color-marino-950);
  color: var(--color-gris-300);
  padding: 48px 0 28px;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer__logo {
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--color-blanco);
}
.footer__company { margin-top: 4px; font-size: 0.9rem; }

.footer__confidential {
  font-size: 0.85rem;
  color: var(--color-gris-600);
  max-width: 560px;
}

.footer__social {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.footer__social-link {
  font-size: 0.9rem;
  color: var(--color-gris-300);
  transition: color var(--transition);
}
.footer__social-link:hover { color: var(--color-acento); }

.footer__copy {
  font-size: 0.8rem;
  color: var(--color-gris-600);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 20px;
}

/* ===== WHATSAPP FLOTANTE ===== */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background-color: var(--color-whatsapp);
  border: 2px solid var(--color-marino-950);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 5px 5px 0 rgba(10, 22, 40, 0.9);
  z-index: 200;
  transition: transform var(--transition), box-shadow var(--transition);
}
.whatsapp-float:hover {
  transform: translate(2px, 2px);
  box-shadow: 3px 3px 0 rgba(10, 22, 40, 0.9);
}
.whatsapp-float__icon { width: 30px; height: 30px; color: var(--color-blanco); }

/* ===== 10) MEDIA QUERIES (tablet 768px+, escritorio 1440px con max-width contenedor) ===== */
@media (min-width: 768px) {
  :root {
    --fs-h1: 2.75rem;
    --fs-h2: 2rem;
    --fs-h3: 1.25rem;
  }

  .header__toggle { display: none; }

  .header__nav {
    position: static;
    max-height: none;
    overflow: visible;
    background: none;
  }

  .header__menu {
    flex-direction: row;
    align-items: center;
    padding: 0;
    gap: 4px;
  }

  .header__link {
    padding: 8px 14px;
    border-bottom: none;
  }

  .hero { padding: 110px 0 130px; }
  .hero__ctas { flex-direction: row; }

  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }

  .timeline {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  .score {
    flex-direction: row;
    align-items: center;
    text-align: left;
    gap: 64px;
  }
  .score__domains { grid-template-columns: repeat(2, 1fr); }

  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
  }
  .footer__copy {
    width: 100%;
    border-top: 1px solid rgba(255,255,255,0.08);
  }

  .section { padding: 88px 0; }
}

@media (min-width: 1024px) {
  .form {
    grid-template-columns: repeat(2, 1fr);
  }
}