/* ---------- Tokens ---------- */
:root {
  --color-bg: #f4f1ea;
  --color-bg-alt: #ebe6dc;
  --color-cream: #f6efe8;
  --color-dark: #22302b;
  --color-dark-alt: #2c3b34;
  --color-dark-stripe: #26342e;
  --color-dark-border: #3b4a42;
  --color-rust: #a65b3c;
  --color-rust-dark: #8f4d32;
  --color-rust-light: #c98f6f;
  --color-rust-pale: #e7c4b1;
  --color-text: #22302b;
  --color-text-muted: #4f5d54;
  --color-text-inverse: #f4f1ea;
  --color-text-inverse-muted: #b7c4ba;
  --color-text-inverse-faint: #9db3a6;
  --color-border: #dcd6c9;
  --color-border-alt: #d3ccbd;

  --font-serif: 'Newsreader', serif;
  --font-sans: 'Karla', sans-serif;

  --gutter: 60px;
}

@media (max-width: 1024px) {
  :root { --gutter: 36px; }
}

@media (max-width: 640px) {
  :root { --gutter: 22px; }
}

/* ---------- Reset ---------- */
* { box-sizing: border-box; }
body { margin: 0; background: var(--color-bg); color: var(--color-text); font-family: var(--font-sans); }
h1, h2, h3, p { margin: 0; }
a { color: inherit; text-decoration: none; transition: color 0.18s ease; }
a:hover { color: var(--color-rust); }
img { max-width: 100%; display: block; }

/* ---------- Shared bits ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--color-rust);
  color: var(--color-cream);
  font-size: 14px;
  font-weight: 700;
  padding: 14px 22px;
}
.skip-link:focus {
  left: 0;
  color: var(--color-cream);
}
main:focus { outline: none; }

.eyebrow {
  font-size: 11.5px;
  letter-spacing: 0.22em;
  font-weight: 700;
  color: var(--color-rust);
}
.eyebrow-accent { color: var(--color-rust-light); }

.btn {
  display: inline-block;
  font-weight: 700;
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: var(--color-rust);
  color: var(--color-cream);
  padding: 18px 32px;
  font-size: 15px;
}
.btn-primary:hover { background: var(--color-rust-dark); }
.btn-dark {
  background: var(--color-dark);
  color: var(--color-text-inverse);
  padding: 19px 34px;
  font-size: 15.5px;
}
.btn-dark:hover { background: var(--color-dark-alt); color: var(--color-text-inverse); }
.link-underline {
  font-size: 15px;
  font-weight: 700;
  color: #c9d3c9;
  border-bottom: 1px solid var(--color-dark-border);
  padding-bottom: 4px;
  transition: color 0.18s ease, border-color 0.18s ease;
}
.link-underline:hover { border-color: var(--color-rust); }

.section-title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  max-width: 22ch;
}
.section-title-inverse { color: var(--color-text-inverse); }

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 48px;
  flex-wrap: wrap;
}
.section-head-copy {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.section-desc {
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text-muted);
  max-width: 38ch;
}

/* ---------- Header ---------- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px var(--gutter);
  background: var(--color-dark);
  color: var(--color-text-inverse);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.brand-mark {
  height: clamp(20px, 2.2vw, 26px);
  width: auto;
  flex-shrink: 0;
}
.brand-name {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(15px, 2vw, 23px);
  letter-spacing: -0.01em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}
.nav {
  display: flex;
  align-items: center;
  gap: 34px;
}
.nav a:not(.btn) {
  font-size: 14.5px;
  font-weight: 600;
  color: #e7e2d5;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text-inverse);
}

/* ---------- Hero ---------- */
.hero {
  background: var(--color-dark);
  color: var(--color-text-inverse);
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: end;
}
.hero-content {
  padding: 80px 0 84px;
  display: flex;
  flex-direction: column;
  gap: 30px;
}
.hero-title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(38px, 5.5vw, 78px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  max-width: 16ch;
  text-wrap: balance;
}
.hero-lead {
  font-size: 19px;
  line-height: 1.6;
  color: var(--color-text-inverse-muted);
  max-width: 50ch;
  text-wrap: pretty;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 8px;
  flex-wrap: wrap;
}
.hero-media {
  height: 100%;
  min-height: 480px;
  margin-bottom: -56px;
  overflow: hidden;
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- Servicios ---------- */
.section-servicios {
  padding: 120px var(--gutter) 0;
  scroll-margin-top: 80px;
}
.section-servicios .section-head {
  padding-bottom: 44px;
  border-bottom: 2px solid var(--color-dark);
}
.service-group {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 64px;
  padding: 52px 0;
  border-bottom: 1px solid var(--color-border);
}
.service-group-last { border-bottom: none; }
.service-info {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.service-index {
  font-size: 11.5px;
  letter-spacing: 0.2em;
  font-weight: 700;
  color: var(--color-rust);
}
.service-title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 30px;
  line-height: 1.12;
  letter-spacing: -0.015em;
}
.service-summary {
  margin-top: 6px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--color-text-muted);
  max-width: 30ch;
}
.service-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 40px;
}
.service-link {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 18px 0;
  border: none;
  border-top: 1px solid var(--color-border);
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.35;
  /* button reset — these are dialog triggers, not links */
  width: 100%;
  background: none;
  font-family: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
  transition: color 0.18s ease, padding-left 0.18s ease;
}
.service-link:hover { color: var(--color-rust); padding-left: 6px; }
.service-link:hover .arrow { transform: translateX(4px); }
.service-link:focus-visible { outline: 2px solid var(--color-rust); outline-offset: 3px; }
.service-list-dense .service-link {
  padding: 16px 0;
  font-size: 16px;
}
.service-link-last { border-bottom: 1px solid var(--color-border); }
.arrow {
  color: var(--color-rust);
  font-weight: 700;
  transition: transform 0.18s ease;
}

/* ---------- Modal de servicio ---------- */
.modal {
  border: none;
  padding: 0;
  background: transparent;
  width: min(640px, calc(100% - 40px));
  max-height: min(84vh, 780px);
  margin: auto;
  overflow: visible;
  position: relative;
  color: var(--color-text);
}
.modal::backdrop {
  background: rgba(20, 30, 26, 0.72);
}
.modal-inner {
  background: var(--color-bg);
  border-top: 5px solid var(--color-rust);
  padding: 48px 52px 42px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  max-height: min(84vh, 780px);
  overflow-y: auto;
}
/* deja libre la esquina del botón de cierre */
.modal-inner > .eyebrow,
.modal-title {
  padding-right: 46px;
}
.modal-title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: 32px;
  line-height: 1.12;
  letter-spacing: -0.02em;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}
.modal-body {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.modal-body p {
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--color-text-muted);
  text-wrap: pretty;
}
.modal-list-label {
  font-size: 10.5px;
  letter-spacing: 0.2em;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-rust);
}
.modal-body ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
}
.modal-body li {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--color-text-muted);
  padding: 12px 0 12px 22px;
  border-top: 1px solid var(--color-border);
  position: relative;
}
.modal-body li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-rust);
  font-weight: 700;
}
.modal-cta {
  align-self: flex-start;
  margin-top: 6px;
}
.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  z-index: 1;
  width: 38px;
  height: 38px;
  background: none;
  border: none;
  font-family: var(--font-sans);
  font-size: 28px;
  line-height: 1;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0;
}
.modal-close:hover { color: var(--color-rust); }
.modal-close:focus-visible { outline: 2px solid var(--color-rust); outline-offset: 2px; }

/* ---------- Experiencia ---------- */
.section-experiencia {
  padding: 40px var(--gutter) 112px;
  scroll-margin-top: 80px;
}
.stats-grid {
  border-top: 1px solid var(--color-border);
  padding-top: 56px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 56px;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.stat-number {
  font-family: var(--font-serif);
  font-size: 56px;
  line-height: 1;
  color: var(--color-rust);
}
.stat-label {
  font-size: 11.5px;
  letter-spacing: 0.2em;
  font-weight: 700;
  color: #6b7a70;
}
.stat-desc {
  font-size: 15px;
  line-height: 1.65;
  color: var(--color-text-muted);
}

/* ---------- Por qué nosotros ---------- */
.section-why {
  background: var(--color-dark);
  color: #e7e2d5;
  padding: 100px var(--gutter);
}
.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.why-copy {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.why-lead {
  font-size: 17px;
  line-height: 1.65;
  color: var(--color-text-inverse-muted);
  max-width: 46ch;
  text-wrap: pretty;
}
.why-photos {
  margin-top: 12px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.why-photos img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  transition: filter 0.3s ease;
}
.why-photos img:hover { filter: brightness(1.1); }

.credentials-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--color-dark-border);
}
.credential-card {
  background: var(--color-dark);
  padding: 28px 26px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: background 0.25s ease;
}
.credential-card:hover { background: var(--color-dark-alt); }
.credential-label {
  font-size: 10.5px;
  letter-spacing: 0.16em;
  font-weight: 700;
  color: var(--color-rust-light);
}
.credential-title {
  font-family: var(--font-serif);
  font-size: 20px;
}
.credential-desc {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--color-text-inverse-faint);
}

/* ---------- Proceso ---------- */
.section-proceso {
  background: var(--color-bg-alt);
  padding: 100px var(--gutter);
  scroll-margin-top: 80px;
}
.section-proceso .section-head {
  margin-bottom: 56px;
}
.proceso-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 2px solid var(--color-dark);
}
.proceso-step {
  padding: 32px 28px 0 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-right: 1px solid var(--color-border-alt);
}
.proceso-step:first-child { padding-left: 0; }
.proceso-step-last { border-right: none; padding-right: 0; }
.step-label {
  font-size: 11.5px;
  letter-spacing: 0.2em;
  font-weight: 700;
  color: var(--color-rust);
}
.step-title {
  font-family: var(--font-serif);
  font-size: 26px;
  line-height: 1.15;
}
.step-desc {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--color-text-muted);
}

/* ---------- Cobertura ---------- */
.section-cobertura {
  padding: 100px var(--gutter);
  scroll-margin-top: 80px;
}
.cobertura-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.cobertura-map {
  width: 100%;
  height: auto;
  border: 1px solid var(--color-border);
}
.cobertura-content {
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.cobertura-lead {
  font-size: 16.5px;
  line-height: 1.65;
  color: var(--color-text-muted);
  max-width: 44ch;
  text-wrap: pretty;
}
.coverage-list {
  display: flex;
  flex-direction: column;
  margin-top: 6px;
  border-top: 1px solid var(--color-border);
}
.coverage-row {
  display: flex;
  justify-content: space-between;
  padding: 15px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 15.5px;
  gap: 16px;
  flex-wrap: wrap;
}
.coverage-name { font-weight: 600; }
.coverage-tag {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #6b7a70;
}
.client-logos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--color-border);
  margin-top: 14px;
}
.client-logo {
  background: var(--color-bg);
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px 18px;
}
.client-logo img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  /* en reposo se atenúan para no competir con la paleta; recuperan color al pasar el cursor */
  filter: grayscale(1);
  opacity: 0.55;
  transition: filter 0.3s ease, opacity 0.3s ease;
}
.client-logo:hover img {
  filter: grayscale(0);
  opacity: 1;
}

/* ---------- Contacto CTA ---------- */
.cta-band {
  background: var(--color-rust);
  color: var(--color-cream);
  padding: 64px var(--gutter);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
  scroll-margin-top: 80px;
}
.cta-title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  max-width: 28ch;
}

/* ---------- Contacto ---------- */
.section-contacto {
  padding: 100px var(--gutter);
  scroll-margin-top: 80px;
}
.contacto-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 64px;
  align-items: start;
  margin-top: 8px;
}
.contacto-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.field label {
  font-size: 11.5px;
  letter-spacing: 0.16em;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.field input,
.field select,
.field textarea {
  font-family: var(--font-sans);
  font-size: 15.5px;
  color: var(--color-text);
  background: var(--color-cream);
  border: 1px solid var(--color-border);
  border-radius: 0;
  padding: 14px 16px;
  width: 100%;
  transition: border-color 0.18s ease, background 0.18s ease;
}
.field textarea { resize: vertical; line-height: 1.6; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-rust);
  background: var(--color-bg);
}
.field input:user-invalid,
.field textarea:user-invalid { border-color: #b4472e; }
.form-privacy {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-muted);
}
.form-privacy a { border-bottom: 1px solid var(--color-border-alt); }
.contacto-form .btn { align-self: flex-start; cursor: pointer; border: none; }
.form-status {
  font-size: 14.5px;
  line-height: 1.6;
  min-height: 1.2em;
}
.form-status.is-ok { color: #2f6b4f; }
.form-status.is-error { color: #b4472e; }

.contacto-directo {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-border);
}
.contacto-card {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
  transition: padding-left 0.18s ease;
}
a.contacto-card:hover { padding-left: 8px; }
a.contacto-card:hover .contacto-card-value { color: var(--color-rust); }
.contacto-card-label {
  font-size: 10.5px;
  letter-spacing: 0.2em;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-rust);
}
.contacto-card-value {
  font-size: 18px;
  font-weight: 600;
  transition: color 0.18s ease;
}
.contacto-card-note {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--color-text-muted);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-dark);
  color: #e7e2d5;
  padding: 76px var(--gutter) 36px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.footer-brand-mark {
  display: flex;
  align-items: center;
  gap: 12px;
}
.footer-brand-name {
  font-family: var(--font-serif);
  font-size: 24px;
  line-height: 1.25;
  max-width: 20ch;
}
.footer-brand-desc {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--color-text-inverse-faint);
  max-width: 34ch;
}
.footer-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-col-title {
  font-size: 10.5px;
  letter-spacing: 0.18em;
  font-weight: 700;
  color: #7f9689;
}
.footer-col-text { font-size: 14.5px; line-height: 1.7; }
.footer-link { color: var(--color-rust-pale); }
.footer-bottom {
  margin-top: 56px;
  padding-top: 20px;
  border-top: 1px solid var(--color-dark-border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 11px;
  letter-spacing: 0.12em;
  font-weight: 600;
  color: #7f9689;
}
.footer-legal { display: flex; gap: 28px; }
.footer-legal a { color: #7f9689; }

/* ---------- WhatsApp flotante ---------- */
.whatsapp-fab {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #25d366;
  color: #fff;
  border-radius: 50%;
  box-shadow: 0 4px 14px rgba(20, 30, 26, 0.35);
  z-index: 100;
  transition: transform 0.15s ease, background 0.15s ease;
}
.whatsapp-fab:hover {
  background: #1ebe5a;
  color: #fff;
  transform: scale(1.06);
}
.whatsapp-fab-icon {
  width: 30px;
  height: 30px;
}

/* ---------- Páginas legales ---------- */
.pagina-legal {
  padding: 80px var(--gutter) 100px;
  max-width: 78ch;
}
.pagina-legal .eyebrow { display: block; margin-bottom: 14px; }
.pagina-legal h1 {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(32px, 4.4vw, 52px);
  line-height: 1.06;
  letter-spacing: -0.025em;
  margin-bottom: 10px;
}
.legal-fecha {
  font-size: 13px;
  letter-spacing: 0.12em;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-border);
  display: block;
}
.pagina-legal h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 24px;
  line-height: 1.2;
  margin: 44px 0 14px;
}
.pagina-legal p,
.pagina-legal li {
  font-size: 16px;
  line-height: 1.72;
  color: var(--color-text-muted);
  text-wrap: pretty;
}
.pagina-legal p + p { margin-top: 14px; }
.pagina-legal ul {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}
.pagina-legal li {
  padding: 12px 0 12px 22px;
  border-top: 1px solid var(--color-border);
  position: relative;
}
.pagina-legal li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-rust);
  font-weight: 700;
}
.pagina-legal a:not(.btn) {
  color: var(--color-rust);
  border-bottom: 1px solid var(--color-border-alt);
}
/* marcador visible de dato faltante — no debe quedar en producción */
.falta-dato {
  background: var(--color-rust-pale);
  color: var(--color-rust-dark);
  font-weight: 700;
  padding: 1px 6px;
}
.legal-nota {
  margin-top: 44px;
  padding: 22px 24px;
  background: var(--color-bg-alt);
  border-left: 3px solid var(--color-rust);
  font-size: 14.5px;
  line-height: 1.65;
}
.legal-volver { margin-top: 48px; display: inline-block; }

/* ---------- Animaciones ---------- */
/* Desplazamiento suave para los enlaces ancla del menú */
html { scroll-behavior: smooth; }

/* Aparición al entrar en pantalla.
   El estado oculto sólo se aplica con .js-anim (lo pone main.js), para que
   el contenido siga visible si JavaScript falla o está desactivado. */
.js-anim [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
}
.js-anim [data-reveal].is-visible {
  opacity: 1;
  transform: none;
  transition: opacity 0.65s ease, transform 0.65s cubic-bezier(0.22, 0.61, 0.36, 1);
  transition-delay: var(--reveal-delay, 0ms);
}

/* Acercamiento lento de la foto principal al cargar */
.hero-media img {
  animation: hero-zoom 1.4s cubic-bezier(0.22, 0.61, 0.36, 1) both;
}
@keyframes hero-zoom {
  from { transform: scale(1.07); }
  to   { transform: scale(1); }
}

/* Menú móvil */
.nav.is-open {
  animation: nav-drop 0.24s ease both;
}
@keyframes nav-drop {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: none; }
}
.nav-toggle span {
  transition: transform 0.22s ease, opacity 0.22s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Modal de servicio */
.modal[open] { animation: modal-in 0.28s cubic-bezier(0.22, 0.61, 0.36, 1) both; }
.modal[open]::backdrop { animation: backdrop-in 0.28s ease both; }
@keyframes modal-in {
  from { opacity: 0; transform: translateY(12px) scale(0.985); }
  to   { opacity: 1; transform: none; }
}
@keyframes backdrop-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* Respeta la preferencia del sistema de reducir movimiento */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js-anim [data-reveal] { opacity: 1; transform: none; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; }
  .hero-media { min-height: 320px; margin-bottom: 0; margin-top: 40px; }
  .hero-content { padding: 56px 0; }

  .service-group { grid-template-columns: 1fr; gap: 24px; }
  .service-list, .service-list-2col { grid-template-columns: 1fr; }

  .stats-grid { grid-template-columns: 1fr 1fr; row-gap: 40px; }

  .why-grid { grid-template-columns: 1fr; gap: 48px; }
  .credentials-grid { grid-template-columns: 1fr 1fr; }

  .proceso-grid { grid-template-columns: 1fr 1fr; row-gap: 40px; }
  .proceso-step { border-right: none; padding-left: 0; }
  .proceso-step:nth-child(odd) { border-right: 1px solid var(--color-border-alt); padding-right: 28px; }

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

  .contacto-grid { grid-template-columns: 1fr; gap: 48px; }

  .footer-grid { grid-template-columns: 1fr 1fr; row-gap: 40px; }
}

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-dark);
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 8px var(--gutter) 20px;
    border-bottom: 1px solid var(--color-dark-border);
    display: none;
  }
  .nav.is-open { display: flex; }
  .nav a:not(.btn) { padding: 12px 0; width: 100%; }
  .nav .btn { margin-top: 12px; }
}

@media (max-width: 720px) {
  .stats-grid { grid-template-columns: 1fr; }
  .credentials-grid { grid-template-columns: 1fr; }
  .proceso-grid { grid-template-columns: 1fr; }
  .proceso-step { border-right: none !important; padding: 24px 0 0 !important; border-top: 1px solid var(--color-border-alt); }
  .proceso-grid { border-top: 2px solid var(--color-dark); }
  .proceso-step:first-child { border-top: none; }

  .footer-grid { grid-template-columns: 1fr; }
  .cta-band { flex-direction: column; align-items: flex-start; }
  .field-row { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .modal-inner { padding: 40px 26px 32px; }
  .modal-title { font-size: 26px; }

  .whatsapp-fab { right: 16px; bottom: 16px; width: 52px; height: 52px; }
  .whatsapp-fab-icon { width: 28px; height: 28px; }
}