/* ==========================================================================
   GRUPO AD MANTENIMIENTO — Identidad visual
   Grafito:  #28343D  (del logo)
   Turquesa: #0B7A78  (del logo)
   ========================================================================== */

:root {
  --ink: #28343D;
  --ink-deep: #1B242B;
  --ink-soft: #4B5A66;
  --accent: #0B7A78;
  --accent-dark: #085E5C;
  --accent-tint: #E7F1F0;
  --white: #FFFFFF;
  --gray-bg: #F4F6F7;
  --line: #E2E7EA;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --radius: 6px;
  --shadow: 0 14px 40px rgba(27, 36, 43, 0.12);
  --header-h: 84px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); background: var(--ink-deep); }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

.container {
  width: min(1180px, 100% - 48px);
  margin-inline: auto;
}

/* ---------- Tipografía base ---------- */

.h2 {
  font-size: clamp(2rem, 4.2vw, 3.2rem);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.h2--light { color: var(--white); }

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.kicker::before {
  content: "";
  width: 34px;
  height: 2px;
  background: var(--accent);
}
.kicker--light { color: rgba(255, 255, 255, 0.9); }
.kicker--light::before { background: var(--accent); }
.kicker--accent { color: var(--accent); }

.lead {
  font-size: clamp(1.02rem, 1.6vw, 1.18rem);
  color: var(--ink-soft);
  max-width: 620px;
}
.lead--light { color: rgba(255, 255, 255, 0.78); }

.section { padding: clamp(72px, 10vw, 128px) 0; }
.section--gray { background: var(--gray-bg); }
.section--dark { background: var(--ink-deep); }

/* ---------- Botones ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius);
  padding: 13px 24px;
  cursor: pointer;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
  white-space: nowrap;
}
.btn--accent {
  background: var(--accent);
  color: var(--white);
}
.btn--accent:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(11, 122, 120, 0.35);
}
.btn--ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.55);
}
.btn--ghost:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}
.btn--wa {
  background: #1FAF61;
  color: var(--white);
}
.btn--wa:hover {
  background: #178C4D;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(31, 175, 97, 0.35);
}
.btn--lg { padding: 16px 30px; font-size: 0.9rem; }
.btn--xl { padding: 19px 38px; font-size: 0.95rem; }
.btn--block { width: 100%; }

/* ---------- Header ---------- */

.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}
.header.is-scrolled {
  border-color: var(--line);
  box-shadow: 0 6px 24px rgba(27, 36, 43, 0.08);
}
.header__inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.header__logo { height: 64px; width: auto; }
.header__nav {
  display: flex;
  align-items: center;
  gap: 30px;
}
.header__nav a {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
  position: relative;
  padding: 6px 0;
}
.header__nav a:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.header__nav a:not(.btn):hover::after { transform: scaleX(1); }
.header__actions { display: flex; align-items: center; gap: 16px; }
.header__wa {
  display: none;
  color: #1FAF61;
  padding: 8px;
}
.header__cta-mobile { display: none; }
.header__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
}
.header__burger span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--ink);
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.header__burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header__burger.is-open span:nth-child(2) { opacity: 0; }
.header__burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

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

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: var(--white);
}
.hero__media {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 28%;
  transform: scale(1.06);
  will-change: transform;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to right, rgba(27, 36, 43, 0.55) 0%, rgba(27, 36, 43, 0.1) 65%),
    linear-gradient(to top, rgba(27, 36, 43, 0.94) 0%, rgba(27, 36, 43, 0.4) 45%, rgba(27, 36, 43, 0.22) 100%);
}
.hero__content {
  position: relative;
  z-index: 2;
  padding-top: calc(var(--header-h) + 60px);
  padding-bottom: clamp(60px, 9vw, 110px);
}
.hero__title {
  font-size: clamp(2.5rem, 6.5vw, 5rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin-bottom: 22px;
}
.hero__subtitle {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 600;
  max-width: 640px;
  margin-bottom: 10px;
}
.hero__note {
  font-size: clamp(0.95rem, 1.5vw, 1.05rem);
  color: rgba(255, 255, 255, 0.72);
  max-width: 560px;
  margin-bottom: 34px;
}
.hero__ctas { display: flex; flex-wrap: wrap; gap: 14px; }
.hero__strip {
  position: relative;
  z-index: 2;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(27, 36, 43, 0.55);
  backdrop-filter: blur(6px);
}
.hero__strip-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  padding: 16px 0;
}
.hero__strip-inner span {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.hero__strip-inner span:not(:last-child)::after {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--accent);
  transform: rotate(45deg);
  margin-left: 14px;
}

/* ---------- Impacto ---------- */

.impact__head { max-width: 720px; margin-bottom: clamp(40px, 6vw, 64px); }
.impact__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}
.impact__card {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-radius: var(--radius);
}
.impact__card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.impact__card:hover img { transform: scale(1.06); }
.impact__card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(27, 36, 43, 0.85) 0%, transparent 55%);
}
.impact__card figcaption {
  position: absolute;
  z-index: 2;
  left: 14px;
  bottom: 12px;
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.impact__card figcaption::before {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  background: var(--accent);
  margin-bottom: 8px;
}

/* ---------- Servicios ---------- */

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: clamp(40px, 6vw, 60px);
}
.service-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}
.service-card__media {
  aspect-ratio: 4 / 5;
  overflow: hidden;
}
.service-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.service-card:hover .service-card__media img { transform: scale(1.05); }
.service-card__body {
  padding: 26px 26px 28px;
  display: flex;
  flex-direction: column;
  flex: 1;
  position: relative;
}
.service-card__num {
  position: absolute;
  top: -26px;
  right: 20px;
  background: var(--ink);
  color: var(--white);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  padding: 10px 14px;
  border-radius: var(--radius);
  border-bottom: 3px solid var(--accent);
}
.service-card__body h3 {
  font-size: 1.18rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: 10px;
}
.service-card__body p {
  color: var(--ink-soft);
  font-size: 0.97rem;
  margin-bottom: 18px;
  flex: 1;
}
.service-card__link {
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.service-card__link span { transition: transform 0.25s ease; }
.service-card__link:hover span { transform: translateX(5px); }

/* ---------- Diferencial / Método ---------- */

.method { position: relative; }
.method__head { max-width: 760px; }
.method__statement {
  font-size: clamp(1.5rem, 3.4vw, 2.4rem);
  font-weight: 800;
  line-height: 1.25;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin: 30px 0;
  padding-left: 26px;
  border-left: 4px solid var(--accent);
}
.method__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: clamp(48px, 7vw, 72px);
}
.method__item {
  border-top: 2px solid var(--line);
  padding-top: 22px;
  position: relative;
}
.method__item::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  width: 46px;
  height: 2px;
  background: var(--accent);
}
.method__num {
  display: block;
  font-size: clamp(2.6rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1;
  color: var(--ink);
  letter-spacing: -0.03em;
  margin-bottom: 10px;
}
.method__item h3 {
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ---------- Trabajos en altura ---------- */

.altura {
  position: relative;
  background: var(--ink-deep);
  overflow: hidden;
  padding: clamp(80px, 11vw, 140px) 0;
}
.altura__lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.altura__lines span {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, rgba(11, 122, 120, 0.5), rgba(255, 255, 255, 0.06));
}
.altura__lines span:nth-child(1) { left: 12%; }
.altura__lines span:nth-child(2) { left: 50%; }
.altura__lines span:nth-child(3) { left: 88%; }
.altura__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
}
.altura__list {
  list-style: none;
  margin: 26px 0 34px;
  display: grid;
  gap: 12px;
}
.altura__list li {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 600;
  padding-left: 26px;
  position: relative;
}
.altura__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 10px;
  background: var(--accent);
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
}
.altura__media {
  position: relative;
}
.altura__media > img:first-child {
  border-radius: var(--radius);
  aspect-ratio: 5 / 6;
  object-fit: cover;
  width: 100%;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.45);
}
.altura__detail {
  position: absolute;
  left: -48px;
  bottom: -40px;
  width: 45%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radius);
  border: 6px solid var(--ink-deep);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

/* ---------- Antes / Después ---------- */

.ba__grid {
  display: grid;
  grid-template-columns: 1fr;
  justify-items: center;
  gap: clamp(32px, 5vw, 56px);
  margin-top: clamp(36px, 5vw, 54px);
}
.ba__slider {
  position: relative;
  width: min(680px, 100%);
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 3 / 4;
  user-select: none;
  touch-action: pan-y;
  box-shadow: var(--shadow);
}
.ba__after, .ba__before {
  position: absolute;
  inset: 0;
}
.ba__after img, .ba__before img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}
.ba__before {
  clip-path: inset(0 50% 0 0);
  will-change: clip-path;
}
.ba__tag {
  position: absolute;
  top: 18px;
  left: 18px;
  background: var(--ink);
  color: var(--white);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 8px 14px;
  border-radius: var(--radius);
}
.ba__tag--after {
  left: auto;
  right: 18px;
  background: var(--accent);
}
.ba__handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 44px;
  margin-left: -22px;
  cursor: ew-resize;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
}
.ba__handle-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  margin-left: -1px;
  background: var(--white);
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.4);
}
.ba__handle-btn {
  position: relative;
  z-index: 2;
  background: var(--white);
  color: var(--ink);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.3);
}
.badge-placeholder {
  position: absolute;
  z-index: 4;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(27, 36, 43, 0.85);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 7px 14px;
  border-radius: 100px;
  white-space: nowrap;
  max-width: calc(100% - 32px);
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---------- Portfolio ---------- */

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: clamp(40px, 6vw, 60px);
}
.portfolio__item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 3 / 4;
}
.portfolio__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.portfolio__item:hover img { transform: scale(1.05); }
.portfolio__item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(27, 36, 43, 0.8) 0%, transparent 45%);
}
.portfolio__item figcaption {
  position: absolute;
  z-index: 2;
  left: 18px;
  right: 18px;
  bottom: 16px;
  color: var(--white);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.portfolio__item figcaption span {
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.portfolio__item figcaption em {
  font-style: normal;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.65);
}

/* ---------- Clientes ---------- */

.clients__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: clamp(40px, 6vw, 60px);
}
.client-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.client-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
  border-color: transparent;
}
.client-card svg {
  width: 34px;
  height: 34px;
  fill: var(--accent);
  margin-bottom: 18px;
}
.client-card h3 {
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.client-card p { color: var(--ink-soft); font-size: 0.94rem; }
.client-card--featured {
  background: var(--ink);
  border-color: var(--ink);
}
.client-card--featured h3 { color: var(--white); }
.client-card--featured p { color: rgba(255, 255, 255, 0.75); }

/* ---------- Proceso ---------- */

.process__grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: clamp(40px, 6vw, 60px);
  counter-reset: paso;
}
.process__step {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  padding: 28px 26px;
  position: relative;
  overflow: hidden;
}
.process__step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(to right, var(--accent) 0%, var(--accent) 40%, var(--line) 40%);
}
.process__num {
  display: block;
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 14px;
}
.process__step h3 {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.process__step p { color: var(--ink-soft); font-size: 0.94rem; }

/* ---------- CTA final ---------- */

.cta-final {
  position: relative;
  background: var(--ink-deep);
  padding: clamp(90px, 12vw, 150px) 0;
  overflow: hidden;
  text-align: center;
}
.cta-final__accent {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(115deg, transparent 62%, rgba(11, 122, 120, 0.16) 62%),
    linear-gradient(115deg, transparent 78%, rgba(11, 122, 120, 0.1) 78%);
}
.cta-final__inner { position: relative; display: flex; flex-direction: column; align-items: center; gap: 8px; }
.cta-final__title {
  color: var(--white);
  font-size: clamp(2.1rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.cta-final .lead { margin-inline: auto; margin-bottom: 26px; }
.cta-final__ctas { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }

/* ---------- FAQ ---------- */

.faq__inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}
.faq__head { position: sticky; top: calc(var(--header-h) + 24px); }
.faq__list { display: grid; gap: 12px; }
.faq__item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  transition: border-color 0.25s ease;
}
.faq__item[open] { border-color: var(--accent); }
.faq__item summary {
  list-style: none;
  cursor: pointer;
  font-weight: 700;
  font-size: 1rem;
  padding: 18px 52px 18px 22px;
  position: relative;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--accent);
  transition: transform 0.25s ease;
}
.faq__item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq__item p {
  padding: 0 22px 20px;
  color: var(--ink-soft);
  font-size: 0.97rem;
}

/* ---------- Contacto ---------- */

.contact__inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(40px, 6vw, 90px);
  align-items: start;
}
.contact__info .btn { margin-top: 28px; }
.contact__form {
  background: var(--white);
  border-radius: var(--radius);
  padding: clamp(26px, 4vw, 40px);
  display: grid;
  gap: 18px;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.35);
}
.form-field { display: grid; gap: 7px; }
.form-field label {
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
}
.form-field input,
.form-field select,
.form-field textarea {
  font-family: var(--font);
  font-size: 0.98rem;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 13px 14px;
  background: var(--gray-bg);
  transition: border-color 0.2s ease, background 0.2s ease;
  width: 100%;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--white);
}
.form-field textarea { resize: vertical; }
.form-hint {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink-soft);
}
.form-field input[type="file"] {
  padding: 10px;
  font-size: 0.85rem;
}

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

.footer {
  background: var(--ink-deep);
  color: rgba(255, 255, 255, 0.75);
  border-top: 3px solid var(--accent);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: clamp(32px, 5vw, 70px);
  padding: clamp(56px, 8vw, 80px) 0 40px;
}
.footer__logo-card {
  display: inline-block;
  background: var(--white);
  border-radius: var(--radius);
  padding: 10px 16px;
  margin-bottom: 18px;
}
.footer__logo-card img { height: 74px; width: auto; }
.footer__tagline { font-size: 0.92rem; max-width: 340px; }
.footer h3 {
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.footer__nav, .footer__social { display: flex; flex-direction: column; gap: 10px; }
.footer__nav a, .footer__social a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  font-size: 0.95rem;
  width: fit-content;
  transition: color 0.2s ease;
}
.footer__nav a:hover, .footer__social a:hover { color: var(--accent); }
.footer__pending {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 6px;
}
.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 22px 0;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.45);
}

/* ---------- WhatsApp flotante ---------- */

.wa-float {
  position: fixed;
  z-index: 55;
  right: 22px;
  bottom: 22px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #1FAF61;
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 30px rgba(31, 175, 97, 0.45);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.wa-float:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 16px 36px rgba(31, 175, 97, 0.55);
}

/* ---------- Toast ---------- */

.toast {
  position: fixed;
  z-index: 100;
  left: 50%;
  bottom: 100px;
  transform: translateX(-50%) translateY(20px);
  background: var(--ink);
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 14px 22px;
  border-radius: var(--radius);
  border-left: 4px solid var(--accent);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  max-width: calc(100vw - 44px);
  text-align: center;
}
.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------- Reveal animations ---------- */

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__img { transform: none; }
}

/* Modo QA (?qa=1): sin animaciones, para capturas y pruebas */
html.qa { scroll-behavior: auto; }
html.qa .reveal { opacity: 1; transform: none; transition: none; }
html.qa * { transition: none !important; animation: none !important; }
html.qa .hero { min-height: 820px; }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 1024px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .clients__grid { grid-template-columns: repeat(2, 1fr); }
  .process__grid { grid-template-columns: repeat(2, 1fr); }
  .impact__grid { grid-template-columns: repeat(3, 1fr); }
  .portfolio__grid { grid-template-columns: repeat(2, 1fr); }
  .altura__inner { grid-template-columns: 1fr; }
  .altura__media { max-width: 560px; }
  .altura__detail { left: auto; right: -14px; bottom: -30px; }
  .faq__inner { grid-template-columns: 1fr; }
  .faq__head { position: static; }
  .contact__inner { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  :root { --header-h: 68px; }
  .btn { white-space: normal; text-align: center; }
  .header__logo { height: 52px; }
  .header__cta { display: none; }
  .header__wa { display: inline-flex; }
  .header__burger { display: flex; }
  .header__nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 10px 24px 24px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 40px rgba(27, 36, 43, 0.12);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s;
  }
  .header__nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .header__nav a:not(.btn) {
    width: 100%;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
  }
  .header__cta-mobile {
    display: inline-flex;
    margin-top: 18px;
    width: 100%;
  }
  .hero__ctas .btn { width: 100%; }
  .hero__strip-inner {
    justify-content: flex-start;
    gap: 8px 18px;
    padding: 14px 0;
  }
  .hero__strip-inner span { font-size: 0.62rem; }
  .hero__strip-inner span:not(:last-child)::after { margin-left: 10px; }
  .impact__grid { grid-template-columns: repeat(2, 1fr); }
  .impact__card:last-child { grid-column: span 2; aspect-ratio: 16 / 9; }
  .services__grid { grid-template-columns: 1fr; }
  .service-card__media { aspect-ratio: 4 / 5; }
  .method__grid { grid-template-columns: repeat(2, 1fr); }
  .clients__grid { grid-template-columns: 1fr; }
  .process__grid { grid-template-columns: 1fr; }
  .portfolio__grid { grid-template-columns: 1fr; }
  .badge-placeholder { font-size: 0.6rem; }
  .altura__detail { display: none; }
  .cta-final__ctas { flex-direction: column; width: 100%; }
  .cta-final__ctas .btn { width: 100%; }
  .footer__inner { grid-template-columns: 1fr; }
  .wa-float { right: 16px; bottom: 16px; width: 56px; height: 56px; }
}