/* Actividades MAFER — hoja de estilos */

@font-face {
  font-family: "Archivo";
  src: url("../fonts/archivo-latin-wdth.woff2") format("woff2-variations");
  font-weight: 100 900;
  font-stretch: 62% 125%;
  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;
}
@font-face {
  font-family: "Archivo";
  src: url("../fonts/archivo-latin-ext-wdth.woff2") format("woff2-variations");
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  /* Marca */
  --navy-900: #0b1c44;
  --navy-800: #0e2250;
  --navy: #173470;
  --blue: #4876c1;
  --sky: #d5e1f9;
  --lemon: #f4c430;
  --lemon-hi: #ffd54d;

  /* Superficies y texto */
  --paper: #f3f6fb;
  --paper-2: #e8eef8;
  --card: #ffffff;
  --ink: #10203f;
  --muted: #45557a;
  --line: #cfd9ea;
  --on-navy: #f3f6fb;
  --on-navy-muted: #b7c6e6;
  --error: #b3261e;
  --error-on-navy: #ffb4ab;

  /* Tipografía */
  --font: "Archivo", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --step--1: clamp(0.84rem, 0.82rem + 0.1vw, 0.9rem);
  --step-0: clamp(1rem, 0.97rem + 0.15vw, 1.0625rem);
  --step-1: clamp(1.18rem, 1.1rem + 0.35vw, 1.35rem);
  --step-2: clamp(1.45rem, 1.3rem + 0.7vw, 1.85rem);
  --step-3: clamp(2rem, 1.6rem + 2vw, 3.3rem);
  --step-4: clamp(2.5rem, 1.6rem + 4.3vw, 5.4rem);

  /* Espacio */
  --gutter: clamp(1rem, 0.6rem + 2vw, 2.5rem);
  --section: clamp(4.5rem, 3rem + 7vw, 9rem);
  --radius-s: 6px;
  --radius-m: 12px;
  --radius-l: 20px;

  /* Movimiento */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-quick: 150ms;
  --dur-fast: 250ms;
  --dur-slow: 400ms;
  --dur-very-slow: 500ms;

  --shadow-card: 0 1px 2px rgb(11 28 68 / 0.06), 0 8px 24px -6px rgb(11 28 68 / 0.14), 0 24px 48px -24px rgb(11 28 68 / 0.18);

  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 5rem; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: var(--step-0);
  line-height: 1.6;
  font-stretch: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

[hidden] { display: none !important; }
img, svg { display: block; max-width: 100%; }
img { height: auto; }
h1, h2, h3 { margin: 0; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
ul, ol { margin: 0; padding: 0; list-style: none; }
figure { margin: 0; }
a { color: inherit; text-underline-offset: 0.2em; text-decoration-thickness: 1px; }

::selection { background: var(--lemon); color: var(--navy-900); }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 4px; }
.hero :focus-visible, .contact-info :focus-visible, .site-header:not(.is-solid) :focus-visible { outline-color: var(--lemon); }

html { scrollbar-color: var(--blue) var(--paper-2); }
::-webkit-scrollbar { width: 12px; }
::-webkit-scrollbar-track { background: var(--paper-2); }
::-webkit-scrollbar-thumb { background: var(--blue); border-radius: 12px; border: 3px solid var(--paper-2); }

.num { font-variant-numeric: tabular-nums; letter-spacing: 0.01em; white-space: nowrap; }
.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; }

.wrap { width: min(100% - 2 * var(--gutter), 1240px); margin-inline: auto; }

.skip {
  position: absolute; left: 1rem; top: -4rem; z-index: 100;
  background: var(--lemon); color: var(--navy-900); padding: 0.6rem 1rem; border-radius: var(--radius-s);
  font-weight: 650; text-decoration: none; transition: top var(--dur-fast) var(--ease-out);
}
.skip:focus { top: 1rem; }

/* Iconos */
.i { width: 1.15em; height: 1.15em; flex: none; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }

/* Botones */
.btn {
  --bg: var(--navy); --fg: var(--on-navy);
  position: relative;
  display: inline-flex; align-items: center; justify-content: center; gap: 0.55em;
  min-height: 3.25rem; padding: 0.8rem 1.5rem;
  border: 0; border-radius: 999px;
  background: var(--bg); color: var(--fg);
  font: inherit; font-weight: 650; font-stretch: 104%; letter-spacing: 0.005em; line-height: 1.1;
  text-decoration: none; cursor: pointer;
  transition: background-color var(--dur-quick) ease-out, color var(--dur-quick) ease-out, box-shadow var(--dur-quick) ease-out, transform var(--dur-quick) var(--ease-out);
}
.btn:active { transform: scale(0.96); }
.btn-small { min-height: 2.6rem; padding: 0.55rem 1.1rem; font-size: var(--step--1); }
.btn-lemon { --bg: var(--lemon); --fg: var(--navy-900); box-shadow: 0 1px 0 rgb(255 255 255 / 0.4) inset, 0 6px 18px -8px rgb(244 196 48 / 0.6); }
.btn-lemon:hover { --bg: var(--lemon-hi); }
.btn-ghost { --bg: transparent; --fg: var(--on-navy); box-shadow: inset 0 0 0 1.5px rgb(213 225 249 / 0.45); }
.btn-ghost:hover { --bg: rgb(213 225 249 / 0.1); box-shadow: inset 0 0 0 1.5px rgb(213 225 249 / 0.8); }
.btn-navy:hover { --bg: var(--navy-800); }
.btn .i { stroke-width: 2; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 0.5em; margin-top: 1.75rem;
  color: var(--navy); font-weight: 650; text-decoration: none;
  min-height: 44px;
}
.link-arrow .i { stroke-width: 2; transition: transform var(--dur-fast) var(--ease-out); }
.link-arrow:hover .i { transform: translateX(4px); }
.link-arrow:hover { text-decoration: underline; }

/* Cabecera */
.site-header {
  position: fixed; inset: 0 0 auto; z-index: 50;
  color: var(--on-navy);
  transition: background-color var(--dur-fast) ease-out, box-shadow var(--dur-fast) ease-out, color var(--dur-fast) ease-out;
}
.site-header.is-solid {
  background: rgb(243 246 251 / 0.94);
  color: var(--navy);
  box-shadow: 0 1px 0 var(--line), 0 10px 30px -18px rgb(11 28 68 / 0.35);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  backdrop-filter: saturate(1.4) blur(10px);
}
.site-header.is-scrolled:not(.is-solid) {
  background: rgb(11 28 68 / 0.88);
  box-shadow: 0 1px 0 rgb(213 225 249 / 0.12);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  backdrop-filter: saturate(1.4) blur(10px);
}
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 4.5rem; }

.brand { display: inline-flex; align-items: center; gap: 0.7rem; text-decoration: none; color: inherit; min-height: 44px; }
.brand-mark { width: 3.4rem; height: auto; color: currentColor; }
.brand-word { display: grid; line-height: 1; }
.brand-top { font-size: 0.72rem; font-weight: 600; font-stretch: 118%; letter-spacing: 0.14em; text-transform: uppercase; opacity: 0.75; }
.brand-name { font-size: 1.32rem; font-weight: 800; font-stretch: 112%; letter-spacing: -0.01em; margin-top: 0.2rem; }

.nav-list { display: flex; align-items: center; gap: 0.25rem; }
.nav-list a:not(.btn) {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 0.85rem;
  text-decoration: none; font-weight: 550; font-size: 0.97rem; border-radius: 999px;
  transition: background-color var(--dur-quick) ease-out;
}
.nav-list a:not(.btn):hover { background: rgb(213 225 249 / 0.14); }
.site-header.is-solid .nav-list a:not(.btn):hover { background: var(--paper-2); }
.nav-call { margin-left: 0.6rem; }
.nav-toggle { display: none; }

@media (max-width: 860px) {
  .nav-toggle {
    display: grid; place-items: center; width: 48px; height: 48px; margin-right: -8px;
    background: none; border: 0; color: inherit; cursor: pointer; border-radius: 999px;
  }
  .nav-toggle svg { width: 26px; height: 26px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
  .nav-toggle path { transition: transform var(--dur-fast) var(--ease-out); transform-origin: 12px 12px; }
  .nav-toggle[aria-expanded="true"] .l1 { transform: translateY(4px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] .l2 { transform: translateY(-4px) rotate(-45deg); }

  .nav-list {
    position: absolute; left: var(--gutter); right: var(--gutter); top: calc(100% + 0.25rem);
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 0.5rem; border-radius: var(--radius-l);
    background: var(--card); color: var(--navy); box-shadow: var(--shadow-card);
    opacity: 0; transform: translateY(-8px) scale(0.98); transform-origin: top right;
    visibility: hidden; pointer-events: none;
    transition: opacity var(--dur-quick) ease-out, transform var(--dur-quick) ease-out, visibility 0s linear var(--dur-quick);
  }
  .nav-list.is-open {
    opacity: 1; transform: none; visibility: visible; pointer-events: auto;
    transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out), visibility 0s;
  }
  .nav-list a:not(.btn) { min-height: 52px; padding: 0 1rem; font-size: 1.05rem; }
  .nav-list a:not(.btn):hover { background: var(--paper-2); }
  .nav-call { margin: 0.4rem 0 0; }
  .nav-call .btn { width: 100%; min-height: 3.25rem; font-size: 1rem; }
}

/* Portada */
.hero {
  position: relative; isolation: isolate; overflow: hidden;
  min-height: min(100svh, 980px);
  display: flex; align-items: center;
  padding: 8.5rem 0 5rem;
  background:
    radial-gradient(120% 90% at 85% 40%, #1d3f86 0%, rgb(23 52 112 / 0) 60%),
    var(--navy-800);
  color: var(--on-navy);
}
.hero-media { position: absolute; inset: 0; z-index: -2; }
.hero-media::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgb(11 28 68 / 0.94) 0%, rgb(11 28 68 / 0.78) 42%, rgb(14 34 80 / 0.3) 100%),
    linear-gradient(0deg, rgb(11 28 68 / 0.6), rgb(11 28 68 / 0) 40%);
}
.hero-poster, .hero-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-video { opacity: 0; }
.hero-video.is-playing { opacity: 1; }
.hero-inner { position: relative; }
.hero-title {
  max-width: 13.5em;
  font-size: var(--step-4); line-height: 0.98; font-weight: 780; font-stretch: 112%;
  letter-spacing: -0.03em;
}
.hero-title .line { display: block; }
.hero-title .line + .line { color: var(--sky); font-weight: 500; }
.hero-lede { max-width: 36rem; margin-top: 1.75rem; font-size: var(--step-1); line-height: 1.55; color: var(--on-navy-muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2.25rem; }
.hero-facts { display: flex; flex-wrap: wrap; gap: 0.75rem 2.5rem; margin: 3rem 0 0; font-size: var(--step--1); }
.hero-facts dt { color: var(--on-navy-muted); }
.hero-facts dd { margin: 0.15rem 0 0; font-weight: 600; color: var(--on-navy); }

/* Animación de entrada de la portada: un único momento */
@media (prefers-reduced-motion: no-preference) {
  .js .hero-inner > * {
    opacity: 0; transform: translateY(12px); filter: blur(3px);
    animation: rise var(--dur-very-slow) var(--ease-out) forwards;
  }
  .js .hero-inner > :nth-child(2) { animation-delay: 80ms; }
  .js .hero-inner > :nth-child(3) { animation-delay: 160ms; }
  .js .hero-inner > :nth-child(4) { animation-delay: 240ms; }
}
@keyframes rise { to { opacity: 1; transform: none; filter: blur(0); } }

@media (max-width: 860px) {
  .hero { min-height: 0; padding: 7.5rem 0 4.5rem; }
  .hero-media::after { background: linear-gradient(180deg, rgb(11 28 68 / 0.9) 0%, rgb(11 28 68 / 0.82) 60%, rgb(11 28 68 / 0.7) 100%); }
  .hero-facts { margin-top: 2.25rem; }
}
@media (max-width: 480px) {
  .hero-actions .btn { flex: 1 1 100%; }
}

/* Secciones comunes */
.section-head { max-width: 46rem; }
.section-head h2, .services-intro h2, .contact-info h2 {
  font-size: var(--step-3); line-height: 1.02; font-weight: 760; font-stretch: 110%; letter-spacing: -0.025em; color: var(--navy);
}
.section-head p, .services-intro p { margin-top: 1.25rem; max-width: 38rem; color: var(--muted); font-size: var(--step-1); line-height: 1.55; }

/* Servicios */
.services { padding: var(--section) 0; }
.services-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(2.5rem, 6vw, 6rem); align-items: start; }
.services-intro { position: sticky; top: 7rem; }

.services-list { display: grid; gap: 1.25rem; }
.service-feature {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1.5rem 2rem; align-items: center;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  background: var(--card); border-radius: var(--radius-l); box-shadow: var(--shadow-card);
}
.service h3, .service-rows h3 { font-size: var(--step-2); line-height: 1.12; font-weight: 720; font-stretch: 106%; letter-spacing: -0.015em; color: var(--navy); }
.service p, .service-rows p { margin-top: 0.75rem; color: var(--muted); }

.energy-scale { display: grid; gap: 5px; counter-reset: none; }
.energy-scale li {
  width: var(--w); min-width: 3rem; height: 1.6rem;
  display: flex; align-items: center; padding-left: 0.6rem;
  background: var(--c); color: var(--t, #fff);
  font-weight: 800; font-size: 0.85rem; font-stretch: 112%;
  clip-path: polygon(0 0, calc(100% - 0.8rem) 0, 100% 50%, calc(100% - 0.8rem) 100%, 0 100%);
  border-radius: 3px 0 0 3px;
  transform-origin: left center;
}
@media (prefers-reduced-motion: no-preference) {
  .js .energy-scale li { transform: scaleX(0.15); opacity: 0; transition: transform 700ms var(--ease-out), opacity 300ms ease-out; transition-delay: calc(var(--i, 0) * 60ms); }
  .js .energy.is-in .energy-scale li { transform: none; opacity: 1; }
}

.service-photo { position: relative; }
.service-photo img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--radius-m); outline: 1px solid rgb(0 0 0 / 0.1); outline-offset: -1px; }
.service-photo figcaption { position: absolute; right: 0.6rem; bottom: 0.5rem; font-size: 0.7rem; color: rgb(255 255 255 / 0.9); text-shadow: 0 1px 2px rgb(0 0 0 / 0.6); }

.service-rows { display: grid; margin-top: 1rem; border-top: 1px solid var(--line); }
.service-rows li {
  display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 3fr); gap: 0.5rem 2rem; align-items: baseline;
  padding: 1.75rem 0.25rem; border-bottom: 1px solid var(--line);
}
.service-rows h3 { font-size: var(--step-1); }
.service-rows p { margin-top: 0; }

@media (max-width: 960px) {
  .services-grid { grid-template-columns: 1fr; }
  .services-intro { position: static; }
}
@media (max-width: 620px) {
  .service-feature { grid-template-columns: 1fr; }
  .service-rows li { grid-template-columns: 1fr; }
}

/* Grupo */
.group { padding: var(--section) 0; background: var(--paper-2); }
.company {
  display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(1.75rem, 4vw, 4rem); align-items: center;
  margin-top: clamp(3rem, 6vw, 5.5rem);
}
.company-flip { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.company-flip .company-media { order: 2; }
.company-media { position: relative; }
.company-media img {
  width: 100%; aspect-ratio: 16 / 10; object-fit: cover;
  border-radius: var(--radius-l);
  outline: 1px solid rgb(0 0 0 / 0.1); outline-offset: -1px;
}
.company-media figcaption {
  position: absolute; left: 1rem; bottom: 1rem;
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.45rem 0.85rem 0.45rem 0.65rem; border-radius: 999px;
  background: rgb(11 28 68 / 0.82); color: var(--on-navy);
  font-size: 0.85rem; font-weight: 600;
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
}
.company-body h3 { font-size: var(--step-3); line-height: 1; font-weight: 770; font-stretch: 108%; letter-spacing: -0.025em; color: var(--navy); }
.company-kind { margin-top: 0.6rem; font-weight: 600; color: var(--blue); }
.company-body p:not(.company-kind) { margin-top: 1.1rem; color: var(--muted); max-width: 34rem; }
.company-body .btn { margin-top: 1.75rem; }


@media (max-width: 860px) {
  .company, .company-flip { grid-template-columns: 1fr; }
  .company-flip .company-media { order: 0; }
}

/* Historia */
.history { padding: var(--section) 0; }
.timeline {
  position: relative; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 2rem;
  margin-top: clamp(2.5rem, 5vw, 4rem); padding-top: 2.25rem;
}
.timeline::before { content: ""; position: absolute; left: 0; right: 0; top: 0.55rem; height: 2px; background: linear-gradient(to right, var(--navy), var(--blue) 70%, var(--sky)); border-radius: 2px; }
.timeline li { position: relative; }
.timeline li::before {
  content: ""; position: absolute; top: calc(-2.25rem + 0.1rem); left: 0;
  width: 1rem; height: 1rem; border-radius: 50%; background: var(--paper); border: 3px solid var(--navy);
}
.timeline li:last-child::before { background: var(--lemon); border-color: var(--navy); }
.year { display: block; font-size: var(--step-3); line-height: 1; font-weight: 300; font-stretch: 125%; letter-spacing: -0.03em; color: var(--blue); }
.timeline h3 { margin-top: 0.9rem; font-size: var(--step-1); font-weight: 700; color: var(--navy); }
.timeline p { margin-top: 0.5rem; color: var(--muted); font-size: 0.98rem; }

@media (max-width: 860px) {
  .timeline { grid-template-columns: 1fr; gap: 2.25rem; padding: 0 0 0 2.25rem; }
  .timeline::before { left: 0.45rem; right: auto; top: 0.5rem; bottom: 0.5rem; width: 2px; height: auto; background: linear-gradient(to bottom, var(--navy), var(--blue) 70%, var(--sky)); }
  .timeline li::before { top: 0.6rem; left: -2.25rem; }
}

/* Contacto */
.contact {
  position: relative; overflow: hidden;
  padding: var(--section) 0;
  background: var(--navy-800); color: var(--on-navy);
}
.contact-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(2.5rem, 6vw, 6rem); align-items: start; }
.contact-info h2 { color: var(--on-navy); }
.contact-info > p { margin-top: 1.25rem; color: var(--on-navy-muted); font-size: var(--step-1); line-height: 1.55; max-width: 32rem; }
.channels { display: grid; margin-top: 2.5rem; border-top: 1px solid rgb(213 225 249 / 0.18); }
.channels li { border-bottom: 1px solid rgb(213 225 249 / 0.18); }
.channels a {
  display: flex; align-items: center; gap: 1rem; padding: 1.1rem 0.25rem; min-height: 56px;
  text-decoration: none; color: var(--on-navy);
}
.channels .i { width: 1.4rem; height: 1.4rem; color: var(--lemon); }
.channels span { display: grid; gap: 0.1rem; }
.channels small { font-size: 0.85rem; color: var(--on-navy-muted); }
.channels b { font-weight: 650; font-size: 1.08rem; overflow-wrap: anywhere; }
.channels a:hover b { text-decoration: underline; }
.channels li:first-child b { font-size: var(--step-2); font-stretch: 108%; }

.form-card {
  background: var(--card); color: var(--ink);
  border-radius: calc(var(--radius-l) + 4px);
  padding: clamp(1.5rem, 3.5vw, 2.5rem);
  box-shadow: 0 40px 80px -30px rgb(0 0 0 / 0.55);
}
.form-fields { display: grid; gap: 1.15rem; }
.field-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 1.15rem; }
.field label:not(.check) { display: block; margin-bottom: 0.4rem; font-weight: 600; font-size: 0.95rem; color: var(--navy); }
.opt { font-weight: 450; color: var(--muted); }
.field input:not([type="checkbox"]), .field textarea, .field select {
  width: 100%; min-height: 3.1rem; padding: 0.75rem 0.95rem;
  font: inherit; font-size: 1rem; color: var(--ink);
  background: var(--paper); border: 1.5px solid var(--line); border-radius: var(--radius-m);
  caret-color: var(--blue);
  transition: border-color var(--dur-quick) ease-out, background-color var(--dur-quick) ease-out, box-shadow var(--dur-quick) ease-out;
  appearance: none; -webkit-appearance: none;
}
.field textarea { resize: vertical; min-height: 7.5rem; line-height: 1.5; }
.field ::placeholder { color: #6c7a99; }
.field input:hover, .field textarea:hover, .field select:hover { border-color: #b2c1dd; }
.field input:focus-visible, .field textarea:focus-visible, .field select:focus-visible {
  outline: none; border-color: var(--blue); background: #fff; box-shadow: 0 0 0 4px rgb(72 118 193 / 0.18);
}
.select { position: relative; }
.select select { padding-right: 2.75rem; cursor: pointer; }
.select .i { position: absolute; right: 0.9rem; top: 50%; translate: 0 -50%; pointer-events: none; color: var(--navy); stroke-width: 2; }

.field-error {
  max-height: 0; opacity: 0; overflow: hidden;
  color: var(--error); font-size: 0.88rem; font-weight: 550; line-height: 1.4;
  transition: max-height var(--dur-fast) var(--ease-out), opacity var(--dur-fast) ease-out, margin var(--dur-fast) var(--ease-out);
}
.field.is-error .field-error { max-height: 4.5em; opacity: 1; margin-top: 0.4rem; }
.field.is-error input, .field.is-error textarea { border-color: var(--error); }
.field.is-shaking input, .field.is-shaking textarea { animation: shake 360ms var(--ease-out); }
@keyframes shake {
  0% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(2px); }
  100% { transform: translateX(0); }
}
@media (prefers-reduced-motion: reduce) { .field.is-shaking input, .field.is-shaking textarea { animation: none; } }


.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.form-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.25rem; margin-top: 0.4rem; }
.btn-submit { min-width: 12rem; }
.btn-submit[aria-busy="true"] { cursor: progress; }
.btn-submit[aria-busy="true"] .btn-label::after {
  content: ""; display: inline-block; width: 0.95em; height: 0.95em; margin-left: 0.6em; vertical-align: -0.12em;
  border: 2px solid rgb(243 246 251 / 0.35); border-top-color: var(--on-navy); border-radius: 50%;
  animation: spin 700ms linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.form-status { font-size: 0.92rem; color: var(--error); font-weight: 550; min-height: 1.4em; }
.form-status:empty { display: none; }
.form-legal { margin-top: 0.25rem; font-size: 0.82rem; line-height: 1.5; color: var(--muted); }
.form-legal a { color: var(--navy); font-weight: 600; }

.form-done { text-align: left; padding: 1rem 0 0.5rem; }
.form-done h3 { margin-top: 1.25rem; font-size: var(--step-2); font-weight: 750; font-stretch: 108%; color: var(--navy); outline: none; }
.form-done p { margin-top: 0.75rem; color: var(--muted); max-width: 30rem; }
.form-done a { color: var(--navy); font-weight: 650; }
.done-check { display: inline-grid; width: 4rem; height: 4rem; }
.done-check svg { width: 100%; height: 100%; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.done-check circle { fill: var(--sky); stroke: none; }
.done-check path { stroke: var(--navy); stroke-width: 3.5; stroke-dasharray: 40; stroke-dashoffset: 0; }
@media (prefers-reduced-motion: no-preference) {
  .form-done.is-in .done-check { animation: check-in var(--dur-very-slow) var(--ease-out) both; }
  .form-done.is-in .done-check path { animation: check-draw 450ms var(--ease-out) 150ms both; }
  .form-done.is-in > :not(.done-check) { animation: rise var(--dur-very-slow) var(--ease-out) both; animation-delay: 120ms; opacity: 0; transform: translateY(12px); filter: blur(3px); }
}
@keyframes check-in { from { opacity: 0; transform: translateY(16px) rotate(-30deg) scale(0.8); filter: blur(8px); } to { opacity: 1; transform: none; filter: blur(0); } }
@keyframes check-draw { from { stroke-dashoffset: 40; } to { stroke-dashoffset: 0; } }

@media (max-width: 960px) { .contact-grid { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .field-pair { grid-template-columns: 1fr; } .btn-submit { width: 100%; } }

/* Pie */
.site-footer { padding: 2.25rem 0 2.5rem; background: var(--navy-900); color: var(--on-navy-muted); font-size: 0.92rem; }
.footer-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.25rem 2rem; }
.footer-brand { display: grid; gap: 0.2rem; }
.footer-brand b { color: var(--on-navy); font-weight: 700; }
.footer-links { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; }
.footer-links a, .footer-credit a { display: inline-flex; align-items: center; min-height: 44px; color: var(--on-navy); text-decoration: none; }
.footer-links a:hover, .footer-credit a:hover { text-decoration: underline; }
.site-footer :focus-visible { outline-color: var(--lemon); }

/* Páginas legales */
.legal-page .site-header { position: sticky; }
.legal { padding: clamp(3rem, 6vw, 5rem) 0 var(--section); }
.legal .wrap { max-width: 46rem; }
.legal h1 { font-size: var(--step-3); line-height: 1.05; font-weight: 760; font-stretch: 110%; letter-spacing: -0.025em; color: var(--navy); }
.legal h2 { margin-top: 2.75rem; font-size: var(--step-2); font-weight: 720; color: var(--navy); }
.legal p, .legal li { margin-top: 1rem; color: var(--ink); max-width: 68ch; }
.legal ul { list-style: disc; padding-left: 1.25rem; }
.legal a { color: var(--navy); font-weight: 600; }
.legal .updated { margin-top: 0.75rem; color: var(--muted); }
.legal .back { display: inline-flex; align-items: center; gap: 0.4rem; margin-bottom: 2rem; min-height: 44px; color: var(--navy); font-weight: 650; text-decoration: none; }
.legal .back:hover { text-decoration: underline; }