/* ==========================================================================
   LogiCode — landing page
   Basado en docs/DESIGN.MD, con la escala teal sustituida por una escala navy.
   Reglas heredadas del sistema: sin sombras, radios 6px / 16px, pesos 400/500,
   etiquetas en mayúsculas con tracking, CTA con degradado (solo botones).
   ========================================================================== */

/* ---------- Fuentes (autoalojadas, sin terceros) ---------- */
@font-face {
  font-family: "Inter";
  src: url("../fonts/inter-latin-var.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC,
    U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215,
    U+FEFF, U+FFFD;
}
/* Fallback con métricas ajustadas para evitar saltos de layout (CLS) */
@font-face {
  font-family: "Inter Fallback";
  src: local("Arial");
  size-adjust: 107.4%;
  ascent-override: 90.2%;
  descent-override: 22.5%;
  line-gap-override: 0%;
}

/* ---------- Tokens ---------- */
:root {
  /* Superficies (escala navy: sustituye abyss/deep/kelp del teal original) */
  --surface-abyss: #0a1930; /* lienzo principal */
  --surface-deep: #071225; /* hundido: footer y paneles profundos */
  --surface-raised: #112648; /* tarjetas elevadas */
  --surface-raised-hover: #16305b;

  /* Texto */
  --color-platinum: #ffffff; /* títulos y navegación */
  --color-mist: #eaf2ff; /* énfasis */
  --color-silver: #b4c2d9; /* cuerpo secundario */
  --color-ice: #d6e6ff; /* cifras destacadas (equivale al lavender-phosphor) */
  --color-ink: #06112a; /* texto sobre el degradado del CTA */

  /* Acentos (tomados del logo) */
  --color-azure: #5aa2ff; /* azul del logo, aclarado para fondos oscuros */
  --color-brand-blue: #036ff3;
  --color-brand-green: #35b000; /* solo microacentos */

  /* Líneas */
  --line-soft: rgba(255, 255, 255, 0.1);
  --line-field: #6b7c98; /* ≥3:1 sobre las superficies (WCAG 1.4.11) */
  --color-danger: #ff9aa8;
  --color-success: #8be0a4;

  /* Degradado de CTA (equivale al aurora-gradient, en azul) */
  --gradient-cta: linear-gradient(90deg, #3d93ff 0%, #9cc9ff 52%, #e6f0ff 100%);

  /* Tipografía */
  --font-sans: "Inter", "Inter Fallback", ui-sans-serif, system-ui, -apple-system,
    "Segoe UI", Roboto, sans-serif;

  /* Escala fluida */
  --text-caption: 0.75rem;
  --text-body: 1rem;
  --text-lead: clamp(1.0625rem, 1rem + 0.35vw, 1.25rem);
  --text-h3: clamp(1.375rem, 1.2rem + 0.6vw, 1.75rem);
  --text-h2: clamp(2rem, 1.25rem + 3.2vw, 3.75rem);
  --text-h1: clamp(2.5rem, 1.1rem + 5.6vw, 4.75rem);
  --text-stat: clamp(3.25rem, 2rem + 5vw, 5.375rem);

  /* Espaciado (base 4px) */
  --space-12: 0.75rem;
  --space-16: 1rem;
  --space-20: 1.25rem;
  --space-24: 1.5rem;
  --space-32: 2rem;
  --space-48: 3rem;
  --space-64: 4rem;
  --section-pad: clamp(4rem, 3rem + 5vw, 8.75rem);
  --gutter: clamp(1.25rem, 0.5rem + 3.5vw, 4rem);
  --page-max-width: 1440px;
  --header-h: 4.5rem;

  /* Radios: únicos dos valores de forma del sistema */
  --radius-card: 16px;
  --radius-small: 6px;
}

/* ---------- Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  color-scheme: dark;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1rem);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
body {
  margin: 0;
  background: var(--surface-abyss);
  color: var(--color-silver);
  font-family: var(--font-sans);
  font-size: var(--text-body);
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
img,
svg,
canvas {
  display: block;
  max-width: 100%;
}
h1,
h2,
h3,
p,
ol,
ul,
figure {
  margin: 0;
}
ol,
ul {
  padding: 0;
  list-style: none;
}
a {
  color: inherit;
}
button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}
:focus-visible {
  outline: 2px solid var(--color-azure);
  outline-offset: 3px;
  border-radius: var(--radius-small);
}
::selection {
  background: var(--color-brand-blue);
  color: var(--color-platinum);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: absolute;
  left: var(--space-16);
  top: -4rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--color-platinum);
  color: var(--color-ink);
  border-radius: var(--radius-small);
  font-weight: 500;
  text-decoration: none;
}
.skip-link:focus {
  top: var(--space-16);
}

.container {
  width: 100%;
  max-width: var(--page-max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section {
  padding-block: var(--section-pad);
}

/* ---------- Tipografía ---------- */
h1,
h2,
h3 {
  color: var(--color-platinum);
  font-weight: 500;
  text-wrap: balance;
}
h1 {
  font-size: var(--text-h1);
  line-height: 1.02;
  letter-spacing: -0.04em;
}
h2 {
  font-size: var(--text-h2);
  line-height: 1.05;
  letter-spacing: -0.035em;
}
h3 {
  font-size: var(--text-h3);
  line-height: 1.15;
  letter-spacing: -0.02em;
}
p {
  text-wrap: pretty;
}
.lead {
  font-size: var(--text-lead);
  color: var(--color-silver);
  max-width: 38rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--space-24);
  font-size: var(--text-caption);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-silver);
}
/* Rombo del isotipo como viñeta */
.eyebrow::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  background: var(--color-brand-green);
  border-radius: 2px;
  transform: rotate(45deg);
  flex: none;
}

.section-head {
  max-width: 52rem;
  margin-bottom: clamp(2.5rem, 2rem + 3vw, 4.5rem);
}
.section-head .lead {
  margin-top: var(--space-24);
}

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  min-height: 3rem;
  padding: 0.875rem 1.75rem;
  border: 1px solid transparent;
  border-radius: var(--radius-small);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: filter 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}
.btn--primary {
  background: var(--gradient-cta);
  color: var(--color-ink);
}
.btn--primary:hover {
  filter: brightness(1.08);
}
.btn--ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.32);
  color: var(--color-platinum);
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.55);
}
.btn--sm {
  min-height: 2.75rem;
  padding: 0.625rem 1.25rem;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 25, 48, 0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-soft);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-16);
  min-height: var(--header-h);
  flex-wrap: wrap;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 2.75rem;
  color: var(--color-platinum);
  text-decoration: none;
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: -0.02em;
}
.brand img {
  width: 2.75rem;
  height: 2.75rem;
}
.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: var(--radius-small);
  cursor: pointer;
}
.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  display: block;
  width: 1.125rem;
  height: 2px;
  background: var(--color-platinum);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle__bars {
  position: relative;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
}
.nav-toggle__bars::before {
  top: -6px;
}
.nav-toggle__bars::after {
  top: 6px;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars {
  background: transparent;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before {
  transform: translateY(6px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after {
  transform: translateY(-6px) rotate(-45deg);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-24);
  flex-wrap: wrap;
}
.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-16);
  flex-wrap: wrap;
}
.nav__link {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding-inline: 0.5rem;
  font-size: var(--text-caption);
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-silver);
  transition: color 0.2s ease;
}
.nav__link:hover {
  color: var(--color-platinum);
}
.lang-switch {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding-inline: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: var(--radius-small);
  font-size: var(--text-caption);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-decoration: none;
  color: var(--color-platinum);
}
.lang-switch:hover {
  background: rgba(255, 255, 255, 0.08);
}

@media (max-width: 56.24rem) {
  .nav {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-12);
    padding-block: var(--space-12) var(--space-24);
  }
  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav__link {
    min-height: 3rem;
    padding-inline: 0;
    border-bottom: 1px solid var(--line-soft);
  }
  .nav .lang-switch,
  .nav .btn {
    width: 100%;
    justify-content: center;
  }
  /* Colapsado desde CSS (evita saltos de layout al cargar el JS) */
  .nav-toggle {
    display: inline-flex;
  }
  .nav:not(.is-open) {
    display: none;
  }
}
/* Sin JavaScript el menú permanece visible y el botón se oculta */
@media (max-width: 56.24rem) and (scripting: none) {
  .nav-toggle {
    display: none;
  }
  .nav:not(.is-open) {
    display: flex;
  }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  place-items: center;
  min-height: min(calc(100svh - var(--header-h)), 60rem);
  padding-block: clamp(4.5rem, 3rem + 7vw, 10rem);
  text-align: center;
  background: radial-gradient(ellipse 80% 60% at 50% 45%, #0f2547 0%, var(--surface-abyss) 70%);
}
.hero__orb {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  opacity: 0.85;
  pointer-events: none;
  /* atenúa el centro para no competir con el texto */
  -webkit-mask-image: radial-gradient(circle at 50% 50%, rgba(0, 0, 0, 0.35) 0%, #000 55%);
  mask-image: radial-gradient(circle at 50% 50%, rgba(0, 0, 0, 0.35) 0%, #000 55%);
}
.hero__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.hero h1 {
  max-width: 19ch;
}
.hero .lead {
  margin-top: var(--space-32);
  color: var(--color-mist);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-16);
  margin-top: var(--space-48);
}

/* ---------- Servicios ---------- */
.cards {
  display: grid;
  gap: var(--space-20);
  grid-template-columns: 1fr;
}
@media (min-width: 40rem) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 64rem) {
  .cards {
    grid-template-columns: repeat(3, 1fr);
  }
}
.cards > li {
  display: flex;
}
.card {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  padding: clamp(1.5rem, 1rem + 1.6vw, 2.25rem);
  background: var(--surface-raised);
  border-radius: var(--radius-card);
  transition: background-color 0.25s ease;
}
.card:hover {
  background: var(--surface-raised-hover);
}
.card__icon {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  margin-bottom: var(--space-12);
  background: rgba(90, 162, 255, 0.14);
  border-radius: var(--radius-small);
  color: var(--color-azure);
}
.card__icon svg {
  width: 1.375rem;
  height: 1.375rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.card p {
  flex: 1;
}
.card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  align-self: flex-start;
  min-height: 2.75rem;
  margin-top: var(--space-12);
  font-size: var(--text-caption);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-platinum);
}
.card__link svg {
  width: 1rem;
  height: 1rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.2s ease;
}
.card__link:hover svg {
  transform: translate(2px, -2px);
}
.card__link:hover {
  color: var(--color-azure);
}

/* ---------- Esencia ---------- */
.essence {
  background: var(--surface-deep);
}
.essence__grid {
  display: grid;
  gap: clamp(2.5rem, 2rem + 4vw, 6rem);
  align-items: center;
}
@media (min-width: 56.25rem) {
  .essence__grid {
    grid-template-columns: 1.25fr 1fr;
  }
}
.essence__copy p + p {
  margin-top: var(--space-20);
}
.essence__copy h2 {
  margin-bottom: var(--space-32);
}
.stats {
  display: grid;
  gap: var(--space-20);
}
.stat {
  padding: clamp(1.5rem, 1rem + 1.6vw, 2.25rem);
  background: var(--surface-raised);
  border-radius: var(--radius-card);
}
.stat__value {
  display: block;
  font-size: var(--text-stat);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.046em;
  color: var(--color-ice);
}
.stat__label {
  display: block;
  margin-top: var(--space-16);
  font-size: 0.8125rem;
  letter-spacing: 0.055em;
  text-transform: uppercase;
  color: var(--color-mist);
}

/* ---------- Proceso ---------- */
.steps {
  display: grid;
  gap: var(--space-32) var(--space-24);
  grid-template-columns: 1fr;
  counter-reset: step;
}
@media (min-width: 40rem) {
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 64rem) {
  .steps {
    grid-template-columns: repeat(4, 1fr);
  }
}
.step {
  padding-top: var(--space-24);
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}
.step__num {
  display: block;
  margin-bottom: var(--space-24);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--color-azure);
}
.step h3 {
  margin-bottom: var(--space-12);
}

/* ---------- Contacto ---------- */
.contact__panel {
  display: grid;
  gap: clamp(2rem, 1.5rem + 4vw, 5rem);
  padding: clamp(1.5rem, 0.75rem + 4.5vw, 5rem);
  background: var(--surface-deep);
  border-radius: var(--radius-card);
}
@media (min-width: 56.25rem) {
  .contact__panel {
    grid-template-columns: 1fr 1.15fr;
    align-items: start;
  }
}
.contact__copy .lead {
  margin-top: var(--space-24);
}
.contact__note {
  margin-top: var(--space-32);
  padding-left: var(--space-16);
  border-left: 2px solid var(--color-brand-green);
  font-size: 0.9375rem;
  color: var(--color-silver);
}

.form {
  display: grid;
  gap: var(--space-20);
  grid-template-columns: 1fr;
  padding: clamp(1.25rem, 1rem + 1.5vw, 2.25rem);
  background: var(--surface-raised);
  border-radius: var(--radius-card);
}
@media (min-width: 40rem) {
  .form {
    grid-template-columns: 1fr 1fr;
  }
  .field--full {
    grid-column: 1 / -1;
  }
}
.field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-width: 0;
}
.field label,
.field__legend {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-mist);
}
.field__opt {
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  color: var(--color-silver);
}
.input {
  width: 100%;
  min-height: 3rem;
  padding: 0.75rem 0.875rem;
  background: var(--surface-deep);
  border: 1px solid var(--line-field);
  border-radius: var(--radius-small);
  color: var(--color-platinum);
  transition: border-color 0.2s ease;
}
.input::placeholder {
  color: #8b9bb5;
  opacity: 1;
}
.input:hover {
  border-color: #8fa0bd;
}
.input:focus-visible {
  outline: 2px solid var(--color-azure);
  outline-offset: 1px;
  border-color: var(--color-azure);
}
select.input {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 2.5rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none' stroke='%23b4c2d9' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m1 1.5 5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.875rem center;
}
textarea.input {
  min-height: 9rem;
  resize: vertical;
}
.input[aria-invalid="true"] {
  border-color: var(--color-danger);
}
.field__error {
  min-height: 0;
  font-size: 0.875rem;
  color: var(--color-danger);
}
.field__error:empty {
  display: none;
}
.field__hint {
  font-size: 0.8125rem;
  color: var(--color-silver);
}

.check {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.9375rem;
  color: var(--color-silver);
}
.check input {
  flex: none;
  width: 1.25rem;
  height: 1.25rem;
  margin: 0.125rem 0 0;
  accent-color: var(--color-brand-blue);
  cursor: pointer;
}
.field .check label {
  font-size: 0.9375rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: var(--color-silver);
  cursor: pointer;
}

.form__footer {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  align-items: flex-start;
}
.form__status {
  font-size: 0.9375rem;
  color: var(--color-success);
}
.form__status:empty {
  display: none;
}
.form__status[data-state="error"] {
  color: var(--color-danger);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--surface-deep);
  border-top: 1px solid var(--line-soft);
  padding-block: clamp(3rem, 2rem + 4vw, 5rem) var(--space-32);
}
.site-footer__top {
  display: grid;
  gap: var(--space-32);
  padding-bottom: var(--space-48);
}
@media (min-width: 48rem) {
  .site-footer__top {
    grid-template-columns: 1.4fr 1fr;
    align-items: start;
  }
}
.site-footer__tagline {
  margin-top: var(--space-16);
  max-width: 26rem;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0 var(--space-24);
}
@media (min-width: 48rem) {
  .footer-nav {
    justify-content: flex-end;
  }
}
.site-footer__bottom {
  padding-top: var(--space-24);
  border-top: 1px solid var(--line-soft);
  font-size: 0.875rem;
}

/* ---------- Animación de entrada (sutil) ---------- */
@media (prefers-reduced-motion: no-preference) {
  .js .reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  .js .reveal.is-visible {
    opacity: 1;
    transform: none;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* ---------- Pantallas muy pequeñas / muy grandes ---------- */
@media (max-width: 22.5rem) {
  .brand {
    font-size: 1rem;
  }
  .hero__actions .btn {
    width: 100%;
  }
}
@media (min-width: 120rem) {
  html {
    font-size: 112.5%;
  }
}