/* ==========================================================================
   KALEX SOLUCIONES — Design system & landing page styles
   Fuentes: Hanken Grotesk (display/UI), Inter (texto largo), Hind Kochi (citas/números)
   ========================================================================== */

/* ---------- 1. DESIGN TOKENS ---------- */
:root {
  /* Color — marca (Adobe Color: Kalex) */
  --color-primary: #F24F4F;      /* CTA principal */
  --color-primary-dark: #D93D3D;
  --color-navy: #2D3F54;         /* botones oscuros / hero CTA */
  --color-navy-dark: #232F3F;
  --color-slate: #52647A;        /* botones secundarios */
  --color-gold: #EEB72B;         /* acento ERP */
  --color-form-accent: #3E53FB;  /* submit del formulario */
  --color-star: #FFB908;

  --color-ink: #0B0F17;          /* fondo secciones oscuras / texto principal */
  --color-ink-2: #171B24;
  --color-white: #FFFFFF;
  --color-surface: #F5F5F5;
  --color-surface-2: #EAEAEA;
  --color-border: #E3E3E3;
  --color-border-strong: #929292;

  --color-text: #0B0F17;
  --color-text-muted: #5B6470;
  --color-text-on-dark: #FFFFFF;
  --color-text-on-dark-muted: rgba(255, 255, 255, 0.72);

  --color-success: #1DBD8E;
  --color-warning: #EEB72B;
  --color-error: #F24F4F;

  /* Tipografía */
  --font-display: 'Hanken Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-accent: 'Hind Kochi', 'Hanken Grotesk', sans-serif;

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 20px;
  --radius-xl: 35px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(11, 15, 23, 0.08);
  --shadow-md: 0 8px 24px rgba(11, 15, 23, 0.10);
  --shadow-lg: 0 24px 60px rgba(11, 15, 23, 0.16);

  /* Layout */
  --container-max: 1320px;
  --container-pad: clamp(20px, 5vw, 80px);
  --header-h: 82px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 160ms;
  --dur-base: 280ms;
  --dur-slow: 480ms;
}

/* ---------- 2. RESET ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, dl, dd, figure { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, textarea, select { font: inherit; color: inherit; }

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

:focus-visible {
  outline: 2px solid var(--color-form-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-ink);
  color: var(--color-white);
  padding: var(--space-3) var(--space-4);
  z-index: 999;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus {
  left: 0;
}

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* ---------- 3. TYPOGRAPHY ---------- */
h1, h2, h3 { font-family: var(--font-display); font-weight: 500; letter-spacing: -0.02em; }

.section-head { max-width: 760px; margin-bottom: var(--space-8); }
.section-head__title {
  font-size: clamp(2.1rem, 4.6vw, 4.6rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--color-text);
}
.section-head__subtitle {
  margin-top: var(--space-4);
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
  font-weight: 400;
  color: var(--color-text-muted);
  max-width: 640px;
}
.process .section-head,
.solutions .section-head { max-width: 900px; }
.process .section-head__title,
.solutions .section-head__title,
.testimonials .section-head__title,
.faq .section-head__title { color: var(--color-white); }
.process .section-head__subtitle,
.solutions .section-head__subtitle { color: var(--color-text-on-dark-muted); }
.faq { background: var(--color-white); }
.faq .section-head__title,
.testimonials .section-head__title { color: var(--color-text); text-align: center; }
.testimonials .section-head { margin-inline: auto; text-align: center; max-width: 700px; }
.faq .section-head { margin-inline: auto; text-align: center; max-width: 700px; }

/* ---------- 4. BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.01em;
  padding: 0.9em 1.7em;
  border-radius: var(--radius-sm);
  transition: transform var(--dur-fast) var(--ease-out), background-color var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn--primary { background: var(--color-primary); color: var(--color-white); }
.btn--primary:hover { background: var(--color-primary-dark); }

.btn--dark { background: var(--color-navy); color: var(--color-white); border-radius: var(--radius-md); }
.btn--dark:hover { background: var(--color-navy-dark); }

.btn--slate { background: var(--color-slate); color: var(--color-white); border-radius: var(--radius-md); font-size: 0.95rem; }
.btn--slate:hover { background: var(--color-navy); }

.btn--ghost { background: transparent; color: var(--color-white); border: 1.5px solid rgba(255,255,255,0.5); border-radius: var(--radius-md); }
.btn--ghost:hover { border-color: var(--color-white); background: rgba(255,255,255,0.08); }

.btn--ghost-dark { background: transparent; color: var(--color-text); border: 1.5px solid rgba(11,15,23,0.3); border-radius: var(--radius-md); }
.btn--ghost-dark:hover { border-color: var(--color-text); background: rgba(11,15,23,0.05); }

.btn--sm { padding: 0.6em 1.3em; font-size: 0.9rem; }
.btn--lg { padding: 1.1em 2em; font-size: 1.05rem; }
.btn--block { width: 100%; }

.btn--form-submit {
  width: 100%;
  background: var(--color-form-accent);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  padding: 1.1em 1.5em;
  font-size: 1.05rem;
  position: relative;
}
.btn--form-submit:hover { filter: brightness(1.08); }
.btn--form-submit:disabled { opacity: 0.75; cursor: progress; }
.btn__spinner {
  display: none;
  width: 18px; height: 18px;
  border: 2.5px solid rgba(255,255,255,0.4);
  border-top-color: #fff;
  border-radius: 50%;
}
.btn--form-submit.is-loading .btn__label { visibility: hidden; }
.btn--form-submit.is-loading .btn__spinner {
  display: block;
  position: absolute;
  left: 50%; top: 50%;
  margin: -9px 0 0 -9px;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- 5. HEADER ---------- */
.header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid transparent;
  transition: background-color var(--dur-slow) var(--ease-out),
              backdrop-filter var(--dur-slow) var(--ease-out),
              border-color var(--dur-slow) var(--ease-out),
              box-shadow var(--dur-slow) var(--ease-out);
}
/* Páginas cuyo contenido bajo el header es claro (no tienen hero oscuro a pantalla
   completa, p. ej. términos y condiciones): el header nunca debe quedar
   transparente, o el texto blanco del nav se vuelve invisible sobre fondo claro. */
.header--on-light,
.header.is-scrolled {
  background: rgba(11, 15, 23, 0.72);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom-color: rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow-md);
}
/* En páginas/estados sin hero oscuro, asegúrate de dar contraste igual */
.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.brand { display: inline-flex; align-items: center; gap: var(--space-3); }
.brand__logo {
  display: block;
  width: 32px;
  height: 32px;
  object-fit: contain;
  flex: none;
}
.brand__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--color-white);
}

.nav { display: none; }
.nav__list { display: flex; align-items: center; gap: var(--space-6); }
.nav__link {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1rem;
  color: var(--color-white);
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) 0;
  position: relative;
}
.nav__link::after {
  content: '';
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 2px;
  background: var(--color-primary);
  transition: right var(--dur-base) var(--ease-out);
}
.nav__link:hover::after { right: 0; }

.nav__item--dropdown { position: relative; }
.nav__link--dropdown { cursor: pointer; }
.nav__chevron { transition: transform var(--dur-base) var(--ease-out); }
.nav__item--dropdown:hover .nav__chevron,
.nav__link--dropdown[aria-expanded="true"] .nav__chevron { transform: rotate(180deg); }

.nav__dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 220px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out), visibility var(--dur-base);
}
.nav__item--dropdown:hover .nav__dropdown,
.nav__item--dropdown:focus-within .nav__dropdown {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.nav__dropdown li a {
  display: block;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 0.95rem;
}
.nav__dropdown li a:hover { background: var(--color-surface); }

.header__actions { display: flex; align-items: center; gap: var(--space-4); }
.header__actions .btn--primary { display: none; }

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  align-items: center;
}
.nav-toggle__bar {
  width: 22px; height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  position: fixed;
  inset: var(--header-h) 0 0 0;
  background: rgba(11, 15, 23, 0.98);
  backdrop-filter: blur(18px);
  z-index: 99;
  padding: var(--space-7) var(--container-pad);
  display: flex;
  flex-direction: column;
  gap: var(--space-7);
  overflow-y: auto;
}
.mobile-nav[hidden] { display: none; }
.mobile-nav__list { display: flex; flex-direction: column; gap: var(--space-5); }
.mobile-nav__list a {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--color-white);
}

@media (min-width: 960px) {
  .nav { display: block; }
  .header__actions .btn--primary { display: inline-flex; }
  .nav-toggle { display: none; }
  .mobile-nav { display: none !important; }
}

/* ---------- 6. HERO ---------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--color-ink);
  padding-top: var(--header-h);
}
.hero__media { position: absolute; inset: 0; }
.hero__img { width: 100%; height: 100%; object-fit: cover; object-position: 68% center; }
.hero--no-image .hero__img { display: none; }
.hero--no-image .hero__media::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(60% 80% at 80% 20%, rgba(242,79,79,0.18), transparent 60%),
    radial-gradient(70% 60% at 10% 90%, rgba(45,63,84,0.6), transparent 60%),
    linear-gradient(140deg, #11151F 0%, #0B0F17 60%);
}
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(0,0,0,0.72) 30%, rgba(15,17,23,0.55) 55%, rgba(20,22,28,0.25) 75%, rgba(20,22,28,0) 100%);
}

.hero__content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  padding-block: var(--space-8);
  width: 100%;
}

.hero__copy { max-width: 760px; }
.hero__title {
  font-size: clamp(2.6rem, 7vw, 6.5rem);
  line-height: 0.9;
  letter-spacing: -0.045em;
  color: var(--color-white);
}
.hero__subtitle {
  margin-top: var(--space-5);
  font-size: clamp(1.1rem, 2vw, 1.7rem);
  font-weight: 400;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--color-text-on-dark-muted);
  max-width: 620px;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-4); margin-top: var(--space-7); }

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: var(--space-6);
  justify-content: start;
}
.hero__stat { display: flex; flex-direction: column; gap: var(--space-1); }
.hero__stat-value {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  color: var(--color-white);
}
.hero__stat-label {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-on-dark-muted);
}

@media (min-width: 960px) {
  .hero__content { flex-direction: row; align-items: flex-end; justify-content: space-between; }
  .hero__stats { grid-template-columns: 1fr; text-align: right; justify-items: end; }
}

/* ---------- 7. SOLUTIONS ---------- */
.solutions { background: var(--color-ink); padding-block: var(--space-9); }
.solutions__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}
@media (min-width: 860px) {
  .solutions__grid { grid-template-columns: repeat(2, 1fr); }
}

.solution-card {
  border-radius: var(--radius-xl);
  padding: var(--space-7) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.solution-card--erp {
  background: linear-gradient(160deg, #FFFFFF 15%, var(--color-gold) 130%);
  color: var(--color-text);
}
.solution-card--dev { background: var(--color-white); color: var(--color-text); }

.solution-card__eyebrow {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
}
.solution-card__title {
  margin-top: var(--space-2);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 500;
}
.solution-card__desc {
  margin-top: var(--space-3);
  font-size: 1rem;
  color: rgba(11,15,23,0.72);
  line-height: 1.5;
  max-width: 42ch;
}

.solution-card__features { display: flex; flex-direction: column; }
.solution-card__features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding-block: var(--space-4);
  border-top: 1px solid rgba(11,15,23,0.08);
  font-size: 0.95rem;
  line-height: 1.5;
  color: rgba(11,15,23,0.75);
}
.solution-card__features li::before {
  content: '';
  flex: none;
  width: 8px; height: 8px;
  margin-top: 6px;
  border-radius: 2px;
  background: var(--color-text);
}
.solution-card__feature-title { font-weight: 600; color: var(--color-text); }

.solution-card .btn { align-self: flex-start; margin-top: auto; }

/* ---------- 8. PROCESS ---------- */
.process { background: var(--color-ink); padding-block: var(--space-9); }
.process__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}
@media (min-width: 700px) { .process__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1180px) { .process__grid { grid-template-columns: repeat(4, 1fr); } }

.process-card {
  position: relative;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  overflow: hidden;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  transition: transform var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}
.process-card:hover { transform: translateY(-4px); border-color: rgba(255,255,255,0.2); }
.process-card__number {
  position: absolute;
  right: var(--space-4);
  top: var(--space-2);
  font-family: var(--font-accent);
  font-size: 5.5rem;
  font-weight: 500;
  color: rgba(255,255,255,0.05);
  line-height: 1;
}
.process-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  margin-bottom: var(--space-5);
}
.process-card__title {
  font-size: 1.4rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--color-white);
}
.process-card__desc {
  margin-top: var(--space-3);
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--color-text-on-dark-muted);
}

/* ---------- 9. TESTIMONIALS ---------- */
.testimonials { background: var(--color-white); padding-block: var(--space-9); }
.testimonials__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}
@media (min-width: 700px) { .testimonials__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1180px) { .testimonials__grid { grid-template-columns: repeat(4, 1fr); } }

.testimonial-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.testimonial-card__stars { color: var(--color-star); letter-spacing: 2px; font-size: 1.05rem; }
.testimonial-card__quote {
  font-family: var(--font-accent);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-text);
}
.testimonial-card__name { font-family: var(--font-accent); font-weight: 600; font-size: 0.95rem; margin-top: auto; }
.testimonial-card__role { font-family: var(--font-accent); font-size: 0.82rem; color: var(--color-text-muted); }

/* ---------- 10. FAQ ---------- */
.faq { padding-block: var(--space-9); }
.faq__list { display: flex; flex-direction: column; gap: var(--space-4); max-width: 900px; margin-inline: auto; }
.faq-item {
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq-item h3 { font-weight: 400; }
.faq-item__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-5);
  text-align: left;
  font-family: var(--font-accent);
  font-size: clamp(1rem, 1.6vw, 1.3rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-text);
}
.faq-item__chevron { flex: none; transition: transform var(--dur-base) var(--ease-out); color: var(--color-text-muted); }
.faq-item__trigger[aria-expanded="true"] .faq-item__chevron { transform: rotate(180deg); }
.faq-item__panel {
  padding: 0 var(--space-5) var(--space-5);
  color: var(--color-text-muted);
  font-size: 0.98rem;
  line-height: 1.6;
  max-width: 70ch;
}
.faq-item__panel[hidden] { display: none; }

/* ---------- 11. CONTACT ---------- */
.contact { background: var(--color-surface-2); padding-block: var(--space-9); }
.contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}
@media (min-width: 1020px) {
  .contact__grid { grid-template-columns: 1fr 1.05fr; align-items: start; }
}

.contact__title {
  font-size: clamp(2.2rem, 4.8vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 0.95;
}
.contact__desc {
  margin-top: var(--space-5);
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  font-weight: 300;
  color: var(--color-text-muted);
  max-width: 46ch;
}

.contact__info { margin-top: var(--space-7); display: flex; flex-direction: column; gap: var(--space-5); }
.contact__info-item { display: flex; align-items: center; gap: var(--space-4); }
.contact__info-icon {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  border-radius: 50%;
  border: 1.5px solid var(--color-text);
  color: var(--color-text);
}
.contact__info-label { display: block; font-size: 0.85rem; color: var(--color-text-muted); }
.contact__info-value { display: block; font-size: 1.1rem; font-weight: 500; letter-spacing: -0.01em; }
a.contact__info-value:hover { color: var(--color-primary); }

.contact__form-wrap {
  background: var(--color-ink);
  border-radius: var(--radius-lg);
  padding: var(--space-7) var(--space-6);
}
.contact-form { display: flex; flex-direction: column; gap: var(--space-5); }
.contact-form__row { display: grid; grid-template-columns: 1fr; gap: var(--space-5); }
@media (min-width: 560px) { .contact-form__row { grid-template-columns: 1fr 1fr; } }

.field { display: flex; flex-direction: column; gap: var(--space-2); }
.field label {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--color-white);
}
.field__required { color: var(--color-primary); }
.field input,
.field select,
.field textarea {
  background: #D9D9D9;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  font-size: 0.98rem;
  color: var(--color-text);
  width: 100%;
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.field input::placeholder,
.field textarea::placeholder { color: rgba(0,0,0,0.5); }
.field input:focus,
.field select:focus,
.field textarea:focus { border-color: var(--color-form-accent); box-shadow: 0 0 0 3px rgba(62,83,251,0.25); }
.field textarea { resize: vertical; min-height: 120px; }
.field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none'%3E%3Cpath d='M6 9l6 6 6-6' stroke='%23333' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; padding-right: 40px; }

.field input[aria-invalid="true"],
.field select[aria-invalid="true"],
.field textarea[aria-invalid="true"] { border-color: var(--color-error); box-shadow: 0 0 0 3px rgba(242,79,79,0.18); }

.field__error { display: none; font-size: 0.85rem; color: #FF9E9E; }
.field__error.is-visible { display: block; }

.field__label-row { display: flex; align-items: baseline; justify-content: space-between; }
.field__counter { font-size: 0.8rem; color: var(--color-text-on-dark-muted); }

.field--checkbox { flex-direction: row; align-items: flex-start; gap: var(--space-3); }
.field--checkbox input { width: 18px; height: 18px; margin-top: 3px; accent-color: var(--color-form-accent); flex: none; }
.field--checkbox label { font-size: 0.92rem; font-weight: 300; color: var(--color-text-on-dark-muted); line-height: 1.5; }

.contact-form__status {
  font-size: 0.95rem;
  min-height: 1.2em;
}
.contact-form__status.is-success { color: var(--color-success); }
.contact-form__status.is-error { color: #FF9E9E; }

/* ---------- 12. FOOTER ---------- */
.footer { background: var(--color-ink); color: var(--color-white); padding-top: var(--space-9); }
.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-7);
  padding-bottom: var(--space-8);
}
@media (min-width: 860px) {
  .footer__grid { grid-template-columns: 1.4fr 1fr 1fr; }
}
.footer__desc {
  margin-top: var(--space-4);
  font-size: 0.9rem;
  color: var(--color-text-on-dark-muted);
  max-width: 40ch;
  line-height: 1.6;
}
.footer__social { display: flex; gap: var(--space-3); margin-top: var(--space-5); }
.footer__social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  color: var(--color-white);
  transition: background-color var(--dur-fast) var(--ease-out);
}
.footer__social a:hover { background: var(--color-primary); }

.footer__col h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #DFE2EE;
  margin-bottom: var(--space-4);
}
.footer__col ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer__col a {
  font-size: 0.9rem;
  color: var(--color-text-on-dark-muted);
}
.footer__col a:hover { color: var(--color-white); }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-block: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--color-text-on-dark-muted);
}

/* ---------- 13. LEGAL / DOCUMENT PAGES (Términos, Libro de Reclamaciones, etc.) ---------- */
.mk-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-form-accent);
  background: rgba(62, 83, 251, 0.1);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
}

.legal-hero { padding-block: var(--space-8) var(--space-6); }
.legal-hero__title {
  margin-top: var(--space-4);
  font-size: clamp(2.2rem, 5vw, 4.5rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
}
.legal-hero__updated {
  margin-top: var(--space-2);
  margin-bottom: var(--space-5);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}
.legal-notice {
  background: #EDEFFF;
  border: 1px solid #C9D2FF;
  border-radius: var(--radius-md);
  padding: var(--space-5);
  max-width: 900px;
  font-size: 0.95rem;
  line-height: 1.6;
}

.legal-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-7);
  align-items: start;
  padding-block: var(--space-6) var(--space-9);
}
@media (min-width: 960px) {
  .legal-layout { grid-template-columns: 260px minmax(0, 1fr); }
}

.legal-toc { position: sticky; top: calc(var(--header-h) + var(--space-4)); }
.legal-toc__label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}
.legal-toc nav { display: grid; gap: 2px; }
.legal-toc a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.92rem;
  color: #444;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  transition: background-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.legal-toc a b { font-weight: 700; color: var(--color-form-accent); font-size: 0.8rem; min-width: 20px; }
.legal-toc a:hover { background: var(--color-surface); color: var(--color-text); }
.legal-toc a.is-active { background: var(--color-surface); color: var(--color-text); border-left-color: var(--color-form-accent); }

.clauses { display: grid; gap: var(--space-5); min-width: 0; }
.clause {
  background: var(--color-white);
  border: 1px solid rgba(11,15,23,0.12);
  border-radius: var(--radius-lg);
  overflow: hidden;
  scroll-margin-top: calc(var(--header-h) + var(--space-4));
  transition: box-shadow var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}
.clause:hover { box-shadow: var(--shadow-md); border-color: rgba(11,15,23,0.2); }
.clause-head {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid rgba(11,15,23,0.1);
  background: var(--color-surface);
}
.clause-head__num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 2.4vw, 2.1rem);
  line-height: 1;
  color: rgba(11,15,23,0.14);
  user-select: none;
}
.clause-head h2 { font-size: clamp(1.1rem, 1.6vw, 1.35rem); font-weight: 700; letter-spacing: -0.01em; }
.clause-body { padding: var(--space-6); display: grid; gap: var(--space-3); }
.clause-body p { font-size: 0.95rem; line-height: 1.65; color: #333; }
.clause-body p b { color: var(--color-text); }
.clause-body ul { display: grid; gap: var(--space-3); }
.clause-body ul li { display: flex; gap: var(--space-3); font-size: 0.95rem; line-height: 1.6; color: #333; }
.clause-body ul li svg { color: var(--color-form-accent); flex: none; margin-top: 3px; }
.clause-body ul.dot li::before {
  content: '';
  width: 8px; height: 8px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--color-form-accent);
  flex: none;
}

.model-box {
  display: flex;
  gap: var(--space-4);
  background: var(--color-surface);
  border: 1px solid rgba(11,15,23,0.1);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
}
.model-box__bar { width: 4px; border-radius: var(--radius-pill); background: var(--color-form-accent); flex: none; }
.model-box.is-alt .model-box__bar { background: #4A71B4; }
.model-box b { font-family: var(--font-display); font-weight: 700; display: block; margin-bottom: var(--space-1); color: var(--color-text); }
.model-box span { font-size: 0.9rem; line-height: 1.6; color: #333; }

.clause-contact { display: flex; align-items: center; gap: var(--space-4); }
.clause-contact svg { color: var(--color-form-accent); flex: none; }
.clause-contact a { font-family: var(--font-display); font-weight: 700; color: var(--color-form-accent); }
.clause-contact a:hover { text-decoration: underline; }

.legal-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  padding-top: var(--space-2);
}
.legal-back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.92rem;
  color: #444;
}
.legal-back:hover { color: var(--color-text); }

@media (max-width: 959px) {
  .legal-toc { position: static; order: -1; }
  .legal-toc nav { display: flex; flex-wrap: wrap; gap: var(--space-2); }
  .legal-toc a { border: 1px solid rgba(11,15,23,0.12); border-radius: var(--radius-pill); padding: var(--space-2) var(--space-4); }
  .legal-toc a.is-active { border-color: var(--color-form-accent); }
}

/* ---------- 13b. PRODUCT PAGES (ERP KALEX, Desarrollo a medida, Med Kalex) ---------- */
.product-hero { background: var(--color-ink); padding-block: calc(var(--header-h) + var(--space-7)) var(--space-8); }
.product-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  align-items: center;
}
@media (min-width: 900px) { .product-hero__grid { grid-template-columns: 1.1fr 0.9fr; } }
.product-hero__title {
  margin-top: var(--space-4);
  font-size: clamp(2.4rem, 5.2vw, 4.6rem);
  line-height: 0.96;
  letter-spacing: -0.03em;
  color: var(--color-white);
}
.product-hero__desc {
  margin-top: var(--space-5);
  font-size: clamp(1.05rem, 1.8vw, 1.4rem);
  color: var(--color-text-on-dark-muted);
  max-width: 56ch;
}
.product-hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-4); margin-top: var(--space-6); }
.product-hero__panel {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.product-hero__panel ul { display: flex; flex-direction: column; gap: var(--space-3); }
.product-hero__panel li {
  display: flex;
  gap: var(--space-3);
  font-size: 0.95rem;
  color: var(--color-text-on-dark-muted);
  padding-block: var(--space-2);
  border-top: 1px solid rgba(255,255,255,0.08);
}
.product-hero__panel li:first-child { border-top: none; }
.product-hero__panel li b { color: var(--color-white); font-weight: 600; }

.product-features { padding-block: var(--space-9); }
.product-features__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}
@media (min-width: 700px) { .product-features__grid { grid-template-columns: repeat(2, 1fr); } }
.product-feature {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-6);
}
.product-feature__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-ink);
  margin-bottom: var(--space-4);
}
.product-feature h3 { font-size: 1.2rem; font-weight: 500; letter-spacing: -0.01em; }
.product-feature p { margin-top: var(--space-2); font-size: 0.95rem; line-height: 1.55; color: var(--color-text-muted); }

.product-cta { background: var(--color-surface-2); padding-block: var(--space-8); text-align: center; }
.product-cta__title { font-size: clamp(1.8rem, 3.4vw, 2.6rem); letter-spacing: -0.02em; }
.product-cta__desc { margin-top: var(--space-3); color: var(--color-text-muted); max-width: 56ch; margin-inline: auto; }
.product-cta__actions { display: flex; justify-content: center; flex-wrap: wrap; gap: var(--space-4); margin-top: var(--space-6); }

/* ---------- 14. MOTION: scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- 15. ERROR PAGE ---------- */
.error-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding-block: var(--space-8);
  color: var(--color-white);
  background:
    radial-gradient(circle at 15% 20%, rgba(62, 83, 251, 0.28), transparent 34rem),
    var(--color-ink);
}
.error-page__content { max-width: 720px; text-align: center; }
.error-page__content .brand { justify-content: center; margin-bottom: var(--space-7); }
.error-page__content h1 { margin-top: var(--space-4); font-size: clamp(2.5rem, 8vw, 5rem); }
.error-page__content p:not(.mk-tag) { margin: var(--space-4) auto var(--space-6); color: var(--color-text-on-dark-muted); }