/* ═══════════════════════════════════════════════
   TR GROUP — Consultoría Logística
   Minimalismo editorial · Petróleo + papel cálido
   ═══════════════════════════════════════════════ */

:root {
  /* Color */
  --ink: #0b222e;
  --ink-2: #12303f;
  --ink-3: #1b4256;
  --paper: #f6f4ef;
  --paper-2: #efece4;
  --accent: #0e7460;
  --accent-light: #4fb39a;
  --text: #22333d;
  --text-soft: #5c6b73;
  --text-on-dark: #c9d4d9;
  --hairline: rgba(11, 34, 46, 0.12);
  --hairline-dark: rgba(246, 244, 239, 0.16);

  /* Type */
  --serif: "Fraunces", Georgia, serif;
  --sans: "Archivo", "Helvetica Neue", sans-serif;

  /* Fluid scale */
  --fs-hero: clamp(2.3rem, 1.2rem + 4.7vw, 4.5rem);
  --fs-h2: clamp(1.7rem, 1rem + 2.5vw, 2.85rem);
  --fs-h3: clamp(1.3rem, 1rem + 1vw, 1.75rem);
  --fs-stat: clamp(3.5rem, 2rem + 6vw, 7rem);
  --fs-lead: clamp(1.05rem, 0.95rem + 0.5vw, 1.3rem);

  /* Space */
  --space-section: clamp(3.25rem, 2rem + 4.5vw, 6.5rem);
  --gutter: clamp(1.25rem, 4vw, 4rem);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html.lenis { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto; }

body {
  font-family: var(--sans);
  font-weight: 400;
  color: var(--text);
  background: var(--paper);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; background: none; border: none; }

.container {
  width: min(100% - 2 * var(--gutter), 82rem);
  margin-inline: auto;
}

.section { padding-block: var(--space-section); }
.section--dark {
  background: var(--ink);
  color: var(--text-on-dark);
}
.section--dark .h2 { color: var(--paper); }

/* ── Tipografía ── */
.kicker {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.kicker::before {
  content: "";
  width: 2rem;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}
.kicker--light { color: var(--accent-light); }

.h2 {
  font-family: var(--serif);
  font-size: var(--fs-h2);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--ink);
  max-width: 21em;
}
.h3 {
  font-family: var(--serif);
  font-size: var(--fs-h3);
  font-weight: 500;
  line-height: 1.2;
  color: var(--ink);
}
.lead {
  font-size: var(--fs-lead);
  color: var(--text-soft);
  max-width: 38em;
  margin-top: 1.5rem;
}

/* líneas divididas para animación — el padding evita cortar las bajantes (g, j, y) */
.line-mask {
  display: block;
  overflow: hidden;
  padding-bottom: 0.18em;
  margin-bottom: -0.18em;
}
.line-mask > .line-inner { display: block; will-change: transform; }

/* ── Botones ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 1.9rem;
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: 2px;
  transition: background 0.35s var(--ease-out), color 0.35s var(--ease-out),
              border-color 0.35s var(--ease-out), transform 0.35s var(--ease-out);
}
.btn--solid {
  background: var(--accent);
  color: #fdfcf9;
}
.btn--solid:hover { background: #0a5c4c; transform: translateY(-2px); }
.btn--ghost {
  border: 1px solid rgba(246, 244, 239, 0.45);
  color: var(--paper);
}
.btn--ghost:hover { border-color: var(--paper); background: rgba(246, 244, 239, 0.08); }
.btn--nav {
  background: var(--ink);
  color: var(--paper);
  padding: 0.65rem 1.4rem;
  font-size: 0.85rem;
}
.nav--scrolled .btn--nav:hover,
.btn--nav:hover { background: var(--accent); }

/* ══════════ NAV ══════════ */
.nav {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  transition: background 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
}
.nav__inner {
  width: min(100% - 2 * var(--gutter), 82rem);
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 2.5rem;
  padding-block: 1.1rem;
}
.nav__logo {
  display: flex;
  align-items: center;
  margin-right: auto;
  color: var(--paper);
  transition: color 0.4s;
}
.brandmark {
  display: block;
  width: 44px;
  height: 44px;
}
.brandmark--footer { width: 52px; height: 52px; }
.nav__links {
  display: flex;
  gap: 1.9rem;
}
.nav__links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--paper);
  opacity: 0.85;
  position: relative;
  transition: color 0.4s, opacity 0.3s;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -4px;
  width: 100%; height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s var(--ease-out);
}
.nav__links a:hover { opacity: 1; }
.nav__links a:hover::after { transform: scaleX(1); transform-origin: left; }

.nav--scrolled {
  background: rgba(246, 244, 239, 0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--hairline);
}
.nav--scrolled .nav__logo,
.nav--scrolled .nav__links a { color: var(--ink); }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 8px 4px;
}
.nav__toggle span {
  display: block;
  width: 26px; height: 2px;
  background: var(--paper);
  transition: transform 0.35s var(--ease-out), background 0.4s;
}
.nav--scrolled .nav__toggle span { background: var(--ink); }
.nav--open .nav__toggle span:first-child { transform: translateY(4px) rotate(45deg); }
.nav--open .nav__toggle span:last-child { transform: translateY(-4px) rotate(-45deg); }
.nav--open .nav__toggle span { background: var(--paper); }

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: var(--ink);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--gutter);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.45s var(--ease-out), visibility 0.45s;
}
.mobile-menu.is-open { opacity: 1; visibility: visible; }
.mobile-menu nav { display: flex; flex-direction: column; gap: 0.4rem; }
.mobile-menu nav a {
  font-family: var(--serif);
  font-size: clamp(1.9rem, 8vw, 2.8rem);
  color: var(--paper);
  padding-block: 0.35rem;
  border-bottom: 1px solid var(--hairline-dark);
}
.mobile-menu__contact {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.mobile-menu__contact a { color: var(--accent-light); font-size: 1.05rem; }

/* ══════════ HERO ══════════ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-top: clamp(6rem, 4rem + 5vh, 8rem);
  color: var(--paper);
  overflow: hidden;
}
.hero__media {
  position: absolute; inset: 0;
  overflow: hidden;
  background: radial-gradient(125% 95% at 78% 28%, #163a4b 0%, #0e2c3a 44%, #0a1e29 100%);
}
.hero__aurora {
  position: absolute; inset: -12%;
  background:
    radial-gradient(38% 52% at 76% 36%, rgba(14, 116, 96, 0.45), transparent 68%),
    radial-gradient(34% 48% at 92% 68%, rgba(79, 179, 154, 0.22), transparent 70%),
    radial-gradient(32% 42% at 58% 18%, rgba(27, 66, 86, 0.55), transparent 72%);
  filter: blur(8px);
  animation: heroAurora 22s ease-in-out infinite alternate;
}
@keyframes heroAurora {
  from { transform: translate3d(0, 0, 0) scale(1); opacity: 0.88; }
  to   { transform: translate3d(-3.5%, 2.5%, 0) scale(1.07); opacity: 1; }
}
.hero__flow {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  opacity: 0.9;
}
.hero__lines path { animation: heroShimmer 7s ease-in-out infinite; }
.hero__lines path:nth-child(2) { animation-delay: -1.4s; }
.hero__lines path:nth-child(3) { animation-delay: -2.8s; }
.hero__lines path:nth-child(4) { animation-delay: -4.2s; }
.hero__lines path:nth-child(5) { animation-delay: -5.6s; }
@keyframes heroShimmer { 0%, 100% { opacity: 0.38; } 50% { opacity: 0.95; } }
.hero__nodes circle { animation: heroPulse 6.5s ease-in-out infinite; }
.hero__nodes circle:nth-child(3) { animation-delay: -2.2s; }
.hero__nodes circle:nth-child(5) { animation-delay: -4.4s; }
@keyframes heroPulse { 0%, 100% { opacity: 0.55; } 50% { opacity: 1; } }
.hero__scrim {
  position: absolute; inset: 0;
  background:
    linear-gradient(to bottom, rgba(10, 30, 41, 0.30) 0%, rgba(10, 30, 41, 0) 32%, rgba(10, 30, 41, 0.58) 100%),
    linear-gradient(100deg, rgba(10, 30, 41, 0.78) 0%, rgba(10, 30, 41, 0.22) 46%, rgba(10, 30, 41, 0) 76%);
}
.hero__content {
  position: relative;
  z-index: 2;
  padding-bottom: clamp(2rem, 6vh, 5rem);
}
.hero__kicker { margin-bottom: 2rem; }
.hero__title {
  font-family: var(--serif);
  font-size: var(--fs-hero);
  font-weight: 500;
  line-height: 1.06;
  letter-spacing: -0.015em;
  max-width: 15.5em;
}
.hero__title em {
  font-style: italic;
  color: var(--accent-light);
}
.hero__sub {
  font-size: var(--fs-lead);
  max-width: 34em;
  margin-top: 1.75rem;
  color: rgba(246, 244, 239, 0.82);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.5rem;
}
.hero__foot {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-block: 1.6rem;
  border-top: 1px solid rgba(246, 244, 239, 0.22);
  margin-top: clamp(2.5rem, 6vh, 4.5rem);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(246, 244, 239, 0.7);
}
.hero__scroll {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
}
.hero__scroll-line {
  display: inline-block;
  width: 3.4rem;
  height: 1px;
  background: rgba(246, 244, 239, 0.4);
  position: relative;
  overflow: hidden;
}
.hero__scroll-line::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--paper);
  animation: scrollhint 2.4s var(--ease-out) infinite;
}
@keyframes scrollhint {
  0% { transform: translateX(-100%); }
  55% { transform: translateX(0); }
  100% { transform: translateX(100%); }
}

/* ══════════ DESAFÍO ══════════ */
.challenge__grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: start;
}
.bigstat { max-width: 26rem; }
.bigstat__prefix {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-style: italic;
  color: var(--text-soft);
  display: block;
  margin-bottom: 0.35rem;
}
.bigstat__num {
  font-family: var(--serif);
  font-size: var(--fs-stat);
  font-weight: 400;
  line-height: 0.95;
  color: var(--accent);
  display: block;
}
.bigstat__pct { font-size: 0.5em; }
.bigstat__label {
  margin-top: 1.25rem;
  color: var(--text-soft);
  border-top: 1px solid var(--hairline);
  padding-top: 1.25rem;
}
.challenge__list {
  margin-top: clamp(1.75rem, 3vw, 3rem);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--hairline);
}
.challenge__item {
  padding: 2rem 1.75rem 0 0;
  border-right: 1px solid var(--hairline);
  padding-right: 1.75rem;
}
.challenge__item:not(:first-child) { padding-left: 1.75rem; }
.challenge__item:last-child { border-right: none; padding-right: 0; }
.challenge__index {
  font-family: var(--serif);
  font-size: 0.95rem;
  color: var(--text-soft);
  display: block;
  margin-bottom: 1.4rem;
}
.challenge__item h3 {
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.6rem;
}
.challenge__item p { font-size: 0.93rem; color: var(--text-soft); }

/* ══════════ SERVICIOS ══════════ */
.services { background: var(--paper-2); padding-bottom: 0; }
.services__head { max-width: 46rem; }
.services__body {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(2.5rem, 6vw, 6rem);
  margin-top: clamp(3rem, 7vw, 5.5rem);
  align-items: start;
}
.services__media {
  overflow: hidden;
  aspect-ratio: 4 / 5;
  align-self: start;
}
.services__media img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.services__list { display: flex; flex-direction: column; }
.service {
  padding-block: 1.35rem;
  border-top: 1px solid var(--hairline);
  transition: padding-left 0.45s var(--ease-out);
}
.service:hover { padding-left: 1rem; }
.service h3 {
  font-family: var(--serif);
  font-size: 1.45rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 0.5rem;
  position: relative;
  display: inline-block;
}
.service h3::after {
  content: "→";
  font-family: var(--sans);
  font-size: 0.9em;
  color: var(--accent);
  margin-left: 0.6rem;
  opacity: 0;
  transform: translateX(-8px);
  display: inline-block;
  transition: opacity 0.35s var(--ease-out), transform 0.35s var(--ease-out);
}
.service:hover h3::after { opacity: 1; transform: translateX(0); }
.service p { color: var(--text-soft); max-width: 30em; }

/* ticker */
.ticker {
  margin-top: clamp(3.5rem, 8vw, 6rem);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  overflow: hidden;
  padding-block: 1.1rem;
}
.ticker__track {
  display: flex;
  gap: 2.5rem;
  width: max-content;
  animation: ticker 36s linear infinite;
  font-family: var(--serif);
  font-size: 1.15rem;
  color: var(--ink-3);
  white-space: nowrap;
}
@keyframes ticker {
  to { transform: translateX(-50%); }
}

/* ══════════ METODOLOGÍA ══════════ */
.method__steps {
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.75rem, 3vw, 3rem);
  margin-top: clamp(2rem, 4vw, 3rem);
}
.method__step {
  border-top: 2px solid var(--ink);
  padding-top: 1.75rem;
}
.method__num {
  font-family: var(--serif);
  font-size: 3.2rem;
  font-weight: 400;
  line-height: 1;
  color: var(--ink);
  display: block;
  margin-bottom: 1.4rem;
}
.method__step h3 {
  font-family: var(--serif);
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 0.7rem;
}
.method__step p { color: var(--text-soft); font-size: 0.97rem; }

.agile {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(2.5rem, 6vw, 6rem);
  margin-top: clamp(2.5rem, 5vw, 4rem);
  align-items: center;
}
.agile__media {
  overflow: hidden;
  aspect-ratio: 4 / 3;
}
.agile__media img { width: 100%; height: 100%; object-fit: cover; }
.agile__text .h3 { margin-bottom: 1.4rem; max-width: 14em; }
.agile__text p:not(.kicker) { color: var(--text-soft); margin-bottom: 1rem; max-width: 36em; }

/* ══════════ RESULTADOS ══════════ */
.results__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(2rem, 4vw, 3.5rem);
  margin-top: clamp(3.5rem, 7vw, 6rem);
}
.result {
  border-top: 1px solid var(--hairline-dark);
  padding-top: 1.75rem;
}
.result__num {
  font-family: var(--serif);
  font-size: clamp(2.8rem, 1.8rem + 3.4vw, 4.6rem);
  font-weight: 400;
  line-height: 1;
  color: var(--accent-light);
  display: block;
  margin-bottom: 1.3rem;
  font-variant-numeric: tabular-nums;
}
.result h3 {
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--paper);
  margin-bottom: 0.55rem;
}
.result p { font-size: 0.92rem; opacity: 0.75; }

/* ══════════ TECNOLOGÍA ══════════ */
.tech__grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: start;
}
.tech__items {
  margin-top: clamp(2.5rem, 4vw, 3.5rem);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.25rem clamp(1.5rem, 3vw, 3rem);
}
.tech-item {
  border-top: 1px solid var(--hairline);
  padding-top: 1.3rem;
}
.tech-item h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.5rem;
}
.tech-item p { font-size: 0.93rem; color: var(--text-soft); }
.tech__media {
  position: sticky;
  top: 6rem;
  overflow: hidden;
  aspect-ratio: 4 / 5;
}
.tech__media img { width: 100%; height: 100%; object-fit: cover; }

/* ══════════ NOSOTROS ══════════ */
.about { background: var(--paper-2); }
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: center;
}
.about__media {
  overflow: hidden;
  aspect-ratio: 4 / 5;
}
.about__media img { width: 100%; height: 100%; object-fit: cover; }
.about__list {
  margin-top: 2.25rem;
  display: flex;
  flex-direction: column;
}
.about__list li {
  position: relative;
  padding: 1.1rem 0 1.1rem 2.1rem;
  border-top: 1px solid var(--hairline);
  color: var(--text-soft);
  font-size: 0.97rem;
}
.about__list li::before {
  content: "";
  position: absolute;
  left: 0.15rem;
  top: 1.75rem;
  width: 0.85rem;
  height: 1px;
  background: var(--ink-3);
  opacity: 0.6;
}

/* ══════════ CÓMO EMPEZAR ══════════ */
.start__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(2rem, 4vw, 4rem);
  margin-top: clamp(3rem, 6vw, 5rem);
}
.start__step {
  background: var(--paper-2);
  padding: 2.5rem 2.25rem 2.75rem;
  position: relative;
  transition: transform 0.45s var(--ease-out), box-shadow 0.45s var(--ease-out);
}
.start__step:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px -24px rgba(11, 34, 46, 0.25);
}
.start__num {
  font-family: var(--serif);
  font-size: 1.05rem;
  color: var(--paper);
  background: var(--ink);
  width: 2.3rem;
  height: 2.3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  margin-bottom: 1.6rem;
}
.start__step h3 {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 0.7rem;
}
.start__step p { color: var(--text-soft); font-size: 0.96rem; }

/* ══════════ CITA DE CIERRE ══════════ */
.bridge {
  background: var(--paper-2);
  padding-block: clamp(3.5rem, 2.5rem + 4vw, 6rem);
}
.bridge__cta { margin-top: 2.25rem; }
.btn--dark {
  background: var(--ink);
  color: var(--paper);
}
.btn--dark:hover { background: var(--accent); transform: translateY(-2px); }
.bridge__quote {
  font-family: var(--serif);
  font-size: clamp(1.7rem, 1rem + 2.8vw, 3.1rem);
  font-weight: 500;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--ink);
  max-width: 16em;
}
.bridge__support {
  margin-top: 1.5rem;
  max-width: 34em;
  color: var(--text-soft);
  font-size: var(--fs-lead);
}
.bridge__motif {
  display: block;
  width: min(100%, 62rem);
  height: auto;
  margin-top: clamp(3rem, 6vw, 5rem);
  color: var(--ink-3);
  opacity: 0.45;
}
.motif-node--end { fill: var(--accent); }

/* ══════════ CONTACTO ══════════ */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(3rem, 7vw, 7rem);
  align-items: start;
}
.contact__lead { margin-top: 1.5rem; opacity: 0.85; max-width: 30em; }
.contact__channels {
  margin-top: 2.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  border-top: 1px solid var(--hairline-dark);
  padding-top: 2rem;
}
.contact__mail {
  font-family: var(--serif);
  font-size: clamp(1.2rem, 0.9rem + 1.3vw, 1.6rem);
  color: var(--paper);
  transition: color 0.35s;
  width: fit-content;
  border-bottom: 1px solid transparent;
}
.contact__mail:hover { color: var(--accent-light); }
.contact__tel {
  font-size: 1.1rem;
  color: var(--text-on-dark);
  width: fit-content;
}
.contact__tel:hover { color: var(--paper); }
.contact__loc {
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.6;
}

/* Formulario */
.form { display: flex; flex-direction: column; gap: 1.6rem; }
.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.6rem;
}
.form__field { display: flex; flex-direction: column; gap: 0.45rem; }
.form__field label {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.7;
}
.form__field input,
.form__field textarea {
  font: inherit;
  color: var(--paper);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--hairline-dark);
  padding: 0.6rem 0;
  border-radius: 0;
  transition: border-color 0.35s;
  resize: vertical;
}
.form__field input:focus,
.form__field textarea:focus {
  outline: none;
  border-bottom-color: var(--accent-light);
}
.form__honey { position: absolute; left: -9999px; opacity: 0; }
.btn--submit { align-self: flex-start; margin-top: 0.5rem; }
.btn--submit[disabled] { opacity: 0.55; cursor: wait; }
.form__status { font-size: 0.92rem; min-height: 1.4em; }
.form__status.is-ok { color: var(--accent-light); }
.form__status.is-error { color: #e4a3a3; }

/* ══════════ FOOTER ══════════ */
.footer {
  background: var(--ink);
  color: var(--text-on-dark);
  border-top: 1px solid var(--hairline-dark);
  padding-block: 3rem 2.5rem;
}
.footer__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: start;
}
.footer__brand { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; color: var(--paper); }
.footer__brand p {
  width: 100%;
  font-size: 0.9rem;
  opacity: 0.65;
  margin-top: 0.6rem;
}
.footer__meta {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.82rem;
  text-align: right;
}
.footer__meta a:hover { color: var(--paper); }
.footer__meta span { opacity: 0.6; font-size: 0.85rem; }
.footer__copy {
  grid-column: 1 / -1;
  font-size: 0.8rem;
  opacity: 0.45;
  border-top: 1px solid var(--hairline-dark);
  padding-top: 1.5rem;
  margin-top: 1rem;
}

/* ══════════ TRATAMIENTO FOTOGRÁFICO ══════════ */
/* La gradación base (desaturado + tinte petróleo) va horneada en los JPEG. */
figure[data-imgreveal] { position: relative; }
figure[data-imgreveal]::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(11, 34, 46, 0.16), rgba(11, 34, 46, 0.03) 55%);
  pointer-events: none;
}

/* ══════════ FOCO Y SELECCIÓN ══════════ */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.section--dark :focus-visible,
.footer :focus-visible,
.hero :focus-visible,
.mobile-menu :focus-visible { outline-color: var(--accent-light); }
::selection { background: var(--ink); color: var(--paper); }

/* ══════════ RESPONSIVE ══════════ */
@media (max-width: 960px) {
  .nav__links, .btn--nav { display: none; }
  .nav__toggle { display: flex; }

  .challenge__grid { grid-template-columns: 1fr; }
  .challenge__list { grid-template-columns: 1fr 1fr; }
  .challenge__item { border-right: none; padding-left: 0 !important; }
  .challenge__item:nth-child(odd) { border-right: 1px solid var(--hairline); }
  .challenge__item:nth-child(n+3) { border-top: 1px solid var(--hairline); margin-top: 0; }

  .services__body { grid-template-columns: 1fr; }
  .services__media { position: static; aspect-ratio: 16 / 10; }

  .method__steps { grid-template-columns: 1fr; gap: 2.5rem; }
  .agile { grid-template-columns: 1fr; }
  .agile__media { aspect-ratio: 16 / 10; }

  .results__grid { grid-template-columns: 1fr 1fr; }

  .tech__grid { grid-template-columns: 1fr; }
  .tech__media { position: static; aspect-ratio: 16 / 10; order: -1; }

  .about__grid { grid-template-columns: 1fr; }
  .about__media { aspect-ratio: 16 / 10; }

  .start__grid { grid-template-columns: 1fr; }

  .contact__grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .challenge__list { grid-template-columns: 1fr; }
  .challenge__item { border-right: none !important; }
  .results__grid { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .hero__foot { font-size: 0.7rem; }
}

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