/* ==========================================================================
   TRIT Solution — sistema de diseño web
   Implementa el Manual de marca V1.0. Todo valor de color, tipografía,
   espaciado, radio y sombra proviene del manual.
   Las dos únicas adiciones ("por analogía", sec. 00) están marcadas.
   ========================================================================== */

:root {
  /* --- Color (manual sec. 02 / 07) --- */
  --trit-carbon: #1F2530;
  --trit-carbon-soft: #2E3846;
  --trit-celeste: #3ACFE4;        /* superficies y símbolo — nunca texto */
  --trit-celeste-deep: #1FB4CB;   /* acentos ≥24px, iconos, bordes, foco */
  --trit-celeste-rev: #4FE3F5;    /* solo sobre carbón */
  --trit-text: #1F2530;
  --trit-text-2: #5B6472;
  --trit-text-3: #9AA4B2;         /* decorativo/deshabilitado — no texto de lectura */
  --trit-border: #E3E6EB;
  --trit-surface: #FFFFFF;
  --trit-surface-2: #F7F8FA;

  /* AÑADIDO — el manual exige AA (sec. 07) pero #1FB4CB da 2.49:1 sobre
     claro. Este tono cumple 5.22:1 y cubre texto chico y links sobre claro. */
  --trit-celeste-text: #127788;
  /* AÑADIDO — el manual no define un texto secundario para fondos oscuros.
     Derivado de la misma familia neutra: 9.31:1 sobre carbón. */
  --trit-text-2-rev: #C3CAD4;

  /* --- Tipografía (sec. 03) --- */
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-text: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;

  /* Escala: interpola entre el valor mobile y el desktop de la sec. 03 */
  --size-h1: clamp(2.375rem, 0.518rem + 4.643vw, 4rem);      /* 38 → 64 */
  --size-h2: clamp(1.75rem, 0.893rem + 2.143vw, 2.5rem);     /* 28 → 40 */
  --size-h3: clamp(1.25rem, 1.107rem + 0.357vw, 1.375rem);   /* 20 → 22 */
  --size-body: clamp(1rem, 0.929rem + 0.179vw, 1.0625rem);   /* 16 → 17 */
  --size-slogan: clamp(1.375rem, 0.946rem + 1.071vw, 1.75rem); /* 22 → 28 */
  --size-ui: 1rem;                                            /* botón / nav */
  --size-eyebrow: 0.75rem;                                    /* 12 */

  /* --- Espaciado base 4 (sec. 04) --- */
  --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;
  --section-y: clamp(3.5rem, 0.643rem + 7.143vw, 6rem);      /* 56 → 96 */

  /* --- Radios y sombra (sec. 04) --- */
  --radius-sm: 8px;   /* input, botón */
  --radius-md: 14px;  /* card */
  --radius-lg: 24px;  /* icon tile, panel */
  --shadow-card: 0 8px 24px rgba(31, 37, 48, .08);

  /* --- Grilla (sec. 04) --- */
  --container: 1200px;
  --gutter: 48px;
  --ease: 150ms ease-out;
  --header-h: 72px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--trit-text);
  background: var(--trit-surface-2);
  font-family: var(--font-text);
  font-size: var(--size-body);
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

h1, h2, h3 {
  font-family: var(--font-display);
  text-wrap: balance;
}

/* Foco visible en todo elemento interactivo (sec. 05) */
:where(a, button, input, textarea, select):focus-visible {
  outline: 2px solid var(--trit-celeste-deep);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.shell {
  width: min(var(--container), 100% - var(--gutter) * 2);
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: var(--space-3);
  left: var(--space-3);
  padding: var(--space-3) var(--space-4);
  color: #fff;
  background: var(--trit-carbon);
  border-radius: var(--radius-sm);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

/* ---------- Header (sec. 05) ---------- */

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  background: rgba(247, 248, 250, 0.92);
  border-bottom: 1px solid var(--trit-border);
  backdrop-filter: blur(18px);
}

.header-inner {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

/* Área de resguardo del lockup (sec. 01) */
.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  padding: var(--space-2);
  margin: calc(var(--space-2) * -1);
}

/* Lockup horizontal a 36px de alto — dentro del rango 32–40px del manual */
.brand-lockup {
  width: auto;
  height: 36px;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: var(--space-7);
  font-size: var(--size-ui);
  font-weight: 500;
  line-height: 1;
}

.primary-nav a {
  color: var(--trit-text-2);
  transition: color var(--ease);
}

.primary-nav a:hover {
  color: var(--trit-celeste-text);
}

.primary-nav .nav-cta {
  padding: var(--space-3) var(--space-5);
  color: var(--trit-celeste-text);
  border: 1px solid var(--trit-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--ease), background var(--ease), color var(--ease);
}

.primary-nav .nav-cta:hover {
  background: var(--trit-surface);
  border-color: var(--trit-celeste-deep);
}

.menu-toggle {
  display: none;
}

/* ---------- Tipografía de secciones (sec. 03) ---------- */

.hero h1 {
  margin: 0;
  font-size: var(--size-h1);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.hero h1 span {
  font-weight: 700;
}

.section-heading h2,
.about h2,
.contact h2 {
  margin: 0;
  font-size: var(--size-h2);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h3 {
  font-size: var(--size-h3);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

/* Eyebrow / etiqueta (sec. 03) */
.kicker {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin: 0 0 var(--space-5);
  color: var(--trit-celeste-text);
  font-family: var(--font-mono);
  font-size: var(--size-eyebrow);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.kicker::before {
  content: "";
  width: var(--space-6);
  height: 1px;
  background: var(--trit-celeste-deep);
}

/* ---------- Hero ---------- */

.hero {
  padding: var(--section-y) 0 var(--space-5);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.72fr);
  gap: var(--space-9);
  align-items: center;
}

.hero-slogan {
  max-width: 34ch;
  margin: var(--space-5) 0 0;
  color: var(--trit-text-2);
  font-family: var(--font-display);
  font-size: var(--size-slogan);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.hero-lead {
  max-width: 60ch;
  margin: var(--space-5) 0 0;
  color: var(--trit-text-2);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-7);
}

/* ---------- Botones (sec. 05) ---------- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  min-height: 48px;
  padding: 0 var(--space-5);
  border-radius: var(--radius-sm);
  font-size: var(--size-ui);
  font-weight: 500;
  line-height: 1;
  transition: background var(--ease), border-color var(--ease), color var(--ease);
}

.button-primary {
  color: var(--trit-carbon);
  background: var(--trit-celeste);
  border: 1px solid var(--trit-celeste);
}

.button-primary:hover {
  background: var(--trit-celeste-rev);
  border-color: var(--trit-celeste-rev);
}

.button-secondary {
  color: var(--trit-text);
  background: transparent;
  border: 1px solid var(--trit-border);
}

.button-secondary:hover {
  background: var(--trit-surface-2);
  border-color: var(--trit-celeste-deep);
}

/* ---------- Visual del hero ----------
   Sin glow ni sombras sobre el símbolo (sec. 01, usos incorrectos).
   Los anillos son geometría decorativa independiente. */

.hero-visual {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  max-width: 420px;
  margin-inline: auto;
  width: 100%;
}

.hero-visual img {
  width: min(58%, 240px);
  height: auto;
}

.visual-orbit {
  position: absolute;
  border: 1px solid var(--trit-border);
  border-radius: 50%;
}

.visual-orbit-one {
  width: 68%;
  aspect-ratio: 1;
}

.visual-orbit-two {
  width: 100%;
  aspect-ratio: 1;
  border-color: var(--trit-celeste-deep);
  opacity: 0.35;
}

/* ---------- Franja de rubros ---------- */

.audience-strip {
  margin-top: var(--space-8);
  padding: var(--space-6) 0 var(--space-5);
  display: grid;
  grid-template-columns: 1.4fr repeat(5, auto);
  gap: var(--space-5) var(--space-7);
  align-items: center;
  color: var(--trit-text-2);
  border-top: 1px solid var(--trit-border);
}

.audience-strip span,
.audience-strip strong {
  font-family: var(--font-mono);
  font-size: var(--size-eyebrow);
  font-weight: 500;
  letter-spacing: 0.14em;
  line-height: 1.2;
  text-transform: uppercase;
  white-space: nowrap;
}

.audience-strip strong {
  color: var(--trit-text);
}

/* ---------- Secciones ---------- */

.hero,
.process,
.services,
.plans,
.about,
.contact {
  scroll-margin-top: calc(var(--header-h) + var(--space-4));
}

.process {
  padding: var(--section-y) 0;
}

.process .shell {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-8);
  align-items: end;
}

.section-heading > p:last-child,
.split-heading > p,
.about-copy > p:last-child {
  max-width: 56ch;
  margin-bottom: 0;
  color: var(--trit-text-2);
}

.process-heading > p:last-child {
  margin-top: var(--space-5);
}

.process-grid {
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  list-style: none;
  border-top: 1px solid var(--trit-border);
}

.process-grid li {
  padding: var(--space-5) var(--space-5) var(--space-4);
  border-right: 1px solid var(--trit-border);
}

.process-grid li:first-child {
  border-left: 1px solid var(--trit-border);
}

.process-grid span,
.service-number,
.values-card > li > span {
  color: var(--trit-celeste-text);
  font-family: var(--font-mono);
  font-size: var(--size-eyebrow);
  font-weight: 500;
  letter-spacing: 0.14em;
}

.process-grid h3 {
  margin: var(--space-6) 0 var(--space-3);
}

.process-grid p {
  margin: 0;
  color: var(--trit-text-2);
}

/* ---------- Servicios (sobre carbón) ---------- */

.services {
  padding: var(--section-y) 0;
  background: var(--trit-carbon);
  color: #fff;
}

.services .service-number {
  color: var(--trit-celeste-rev);
}

.services .kicker {
  color: var(--trit-celeste-rev);
}

.services .kicker::before {
  background: var(--trit-celeste-rev);
}

.split-heading {
  display: grid;
  grid-template-columns: 1fr 0.7fr;
  gap: var(--space-7);
  align-items: end;
}

/* Especificidad ≥ .section-heading > p:last-child, que aplica el color claro */
.services .split-heading > p:last-child {
  justify-self: end;
  color: var(--trit-text-2-rev);
}

.service-grid {
  margin-top: var(--space-8);
  border-top: 1px solid var(--trit-carbon-soft);
}

.service-card {
  padding: var(--space-6) 0;
  display: grid;
  grid-template-columns: 72px 1fr auto;
  gap: var(--space-6);
  align-items: center;
  border-bottom: 1px solid var(--trit-carbon-soft);
}

.service-card h3 {
  margin: 0 0 var(--space-2);
}

.service-card p {
  max-width: 68ch;
  margin: 0;
  color: var(--trit-text-2-rev);
}

.service-arrow {
  color: var(--trit-celeste-rev);
  font-size: 1.5rem;
  line-height: 1;
}

/* ---------- Modalidades ---------- */

.plans {
  padding: var(--section-y) 0;
  background: var(--trit-surface-2);
}

.centered-heading {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.centered-heading .kicker {
  justify-content: center;
}

.centered-heading > p:last-child {
  margin: var(--space-5) auto 0;
}

.plan-grid {
  margin-top: var(--space-8);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  align-items: stretch;
}

.plan-card {
  position: relative;
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  background: var(--trit-surface);
  border: 1px solid var(--trit-border);
  border-radius: var(--radius-md);
}

.plan-featured {
  border-color: var(--trit-celeste-deep);
  box-shadow: var(--shadow-card);
}

.featured-badge {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  padding: var(--space-2) var(--space-3);
  color: var(--trit-celeste-text);
  border: 1px solid var(--trit-celeste-deep);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--size-eyebrow);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.plan-label {
  margin: 0 0 var(--space-7);
  /* Reserva 2 líneas en las tres cards para que los títulos queden alineados
     aunque la etiqueta de la destacada envuelva junto al badge */
  min-height: 2.4em;
  color: var(--trit-celeste-text);
  font-family: var(--font-mono);
  font-size: var(--size-eyebrow);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* Reserva el ancho del badge para que nunca se superponga con la etiqueta */
.plan-featured .plan-label {
  padding-right: 9.5rem;
}

.plan-card h3 {
  margin: 0;
}

.plan-subtitle {
  margin: var(--space-3) 0 0;
  color: var(--trit-text);
  font-weight: 600;
}

.plan-intro {
  margin: var(--space-5) 0 0;
  color: var(--trit-text-2);
}

.plan-features {
  margin: var(--space-5) 0 var(--space-6);
  padding: var(--space-5) 0 0;
  list-style: none;
  border-top: 1px solid var(--trit-border);
}

.plan-features li {
  position: relative;
  margin-top: var(--space-3);
  padding-left: var(--space-5);
  color: var(--trit-text-2);
  line-height: 1.45;
}

.plan-features li::before {
  content: "";
  position: absolute;
  top: 0.62em;
  left: 0;
  width: 6px;
  height: 6px;
  background: var(--trit-celeste-deep);
  border-radius: 50%;
}

.plan-card > a {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 44px;
  color: var(--trit-celeste-text);
  font-weight: 500;
  transition: color var(--ease);
}

.plan-card > a:hover {
  color: var(--trit-carbon);
}

/* ---------- Nosotros ---------- */

.about {
  padding: var(--section-y) 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-9);
  align-items: center;
}

.about-copy > p:last-child {
  margin-top: var(--space-5);
}

.values-card {
  margin: 0;
  padding: var(--space-2) var(--space-6);
  list-style: none;
  background: var(--trit-surface);
  border: 1px solid var(--trit-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

.values-card li {
  padding: var(--space-6) 0;
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: var(--space-5);
  border-bottom: 1px solid var(--trit-border);
}

.values-card li:last-child {
  border-bottom: 0;
}

.values-card h3 {
  margin: 0 0 var(--space-2);
}

.values-card p {
  margin: 0;
  color: var(--trit-text-2);
}

/* ---------- Contacto (panel carbón) ---------- */

.contact {
  padding: 0 0 var(--section-y);
}

.contact-panel {
  padding: clamp(2rem, 1rem + 4vw, 4rem);
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: var(--space-9);
  color: #fff;
  background: var(--trit-carbon);
  border-radius: var(--radius-lg);
}

.kicker-light {
  color: var(--trit-celeste-rev);
}

.kicker-light::before {
  background: var(--trit-celeste-rev);
}

.contact-copy > p:not(.kicker) {
  max-width: 46ch;
  margin: var(--space-5) 0 var(--space-5);
  color: var(--trit-text-2-rev);
}

.contact-copy > a {
  display: inline-block;
  min-height: 44px;
  color: var(--trit-celeste-rev);
  font-weight: 500;
}

.contact-form {
  display: grid;
  gap: var(--space-4);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.contact-form label {
  display: grid;
  gap: var(--space-2);
}

.contact-form label > span {
  color: var(--trit-text-2-rev);
  font-family: var(--font-mono);
  font-size: var(--size-eyebrow);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  color: #fff;
  background: var(--trit-carbon-soft);
  border: 1px solid var(--trit-carbon-soft);
  border-radius: var(--radius-sm);
  transition: border-color var(--ease);
}

.contact-form input,
.contact-form select {
  min-height: 48px;
  padding: 0 var(--space-4);
}

.contact-form textarea {
  padding: var(--space-3) var(--space-4);
  resize: vertical;
}

.contact-form input:hover,
.contact-form textarea:hover,
.contact-form select:hover {
  border-color: var(--trit-celeste-deep);
}

.contact-form button {
  min-height: 48px;
  padding: 0 var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--trit-carbon);
  background: var(--trit-celeste);
  border: 0;
  border-radius: var(--radius-sm);
  font-size: var(--size-ui);
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
  transition: background var(--ease);
}

.contact-form button:hover {
  background: var(--trit-celeste-rev);
}

.form-note {
  margin: 0;
  color: var(--trit-text-2-rev);
  font-size: 0.8125rem;
  line-height: 1.5;
}

.form-note[data-state="error"] {
  color: var(--trit-celeste-rev);
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--trit-surface);
  border-top: 1px solid var(--trit-border);
}

.footer-top {
  padding: var(--space-8) 0;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: var(--space-7);
  align-items: center;
}

.footer-top p {
  margin: 0;
  color: var(--trit-text-2);
}

.footer-top > a:last-child {
  color: var(--trit-celeste-text);
  font-weight: 500;
}

.footer-bottom {
  min-height: var(--space-8);
  display: flex;
  align-items: center;
  color: var(--trit-text-2);
  border-top: 1px solid var(--trit-border);
  font-size: 0.875rem;
}

.footer-bottom p {
  margin: 0;
}

/* ==========================================================================
   Breakpoints 1200 / 900 / 640 (sec. 04)
   ========================================================================== */

@media (max-width: 1200px) {
  .process .shell,
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    align-items: start;
  }

  .hero-grid {
    gap: var(--space-8);
  }

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

  .audience-strip span {
    grid-column: 1 / -1;
  }
}

@media (max-width: 900px) {
  :root {
    --gutter: 24px;
    --header-h: 64px;
  }

  .menu-toggle {
    width: 44px;
    height: 44px;
    padding: 0 var(--space-3);
    display: grid;
    align-content: center;
    gap: 7px;
    background: transparent;
    border: 1px solid var(--trit-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
  }

  .menu-toggle span:not(.sr-only) {
    width: 100%;
    height: 2px;
    background: var(--trit-carbon);
    transition: transform 180ms ease;
  }

  .menu-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(4.5px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(2) {
    transform: translateY(-4.5px) rotate(-45deg);
  }

  .primary-nav {
    position: absolute;
    top: var(--header-h);
    left: var(--gutter);
    right: var(--gutter);
    padding: var(--space-4);
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
    background: var(--trit-surface);
    border: 1px solid var(--trit-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
  }

  .primary-nav.is-open {
    display: flex;
  }

  .primary-nav a {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 0 var(--space-3);
  }

  .primary-nav .nav-cta {
    margin-top: var(--space-2);
    justify-content: center;
  }

  .hero-grid,
  .split-heading,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    max-width: 320px;
  }

  .split-heading > p {
    justify-self: start;
  }

  .process-grid,
  .plan-grid {
    grid-template-columns: 1fr;
  }

  .process-grid li {
    padding: var(--space-5) 0;
    border: 0;
    border-bottom: 1px solid var(--trit-border);
  }

  .process-grid li:first-child {
    border-left: 0;
  }

  .process-grid h3 {
    margin-top: var(--space-4);
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
}

@media (max-width: 640px) {
  /* 32px sigue dentro del rango 32–40px que fija el manual (sec. 01) */
  .brand-lockup {
    height: 32px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .audience-strip {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
  }

  .audience-strip strong {
    white-space: normal;
  }

  .service-card {
    grid-template-columns: 40px 1fr;
    gap: var(--space-4);
  }

  .service-arrow {
    display: none;
  }

  .plan-card {
    padding: var(--space-5);
  }

  .featured-badge {
    top: var(--space-5);
    right: var(--space-5);
  }

  .values-card {
    padding: var(--space-1) var(--space-5);
  }

  .values-card li {
    grid-template-columns: 36px 1fr;
    gap: var(--space-4);
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}