/* ===== Variables ===== */
:root {
  /* Paleta "carpeta de bróker": azul folder + acento dorado + tinta roja de sello */
  --color-primary: #35566E;
  --color-primary-dark: #274456;
  --color-secondary: #7C93A6;
  --color-accent: #C68A2E;
  --color-accent-dark: #A86F1F;
  --color-seal: #B8462E;
  --color-whatsapp: #25D366;
  --color-text: #2A2521;
  --color-text-light: #6B5F4F;
  --color-bg: #F7F0E4;
  --color-bg-alt: #EFE4D0;
  --color-border: #E2D3B8;
  --color-primary-soft: rgba(53, 86, 110, 0.08);
  --color-accent-soft: rgba(198, 138, 46, 0.20);
  --shadow-sm: 0 2px 8px rgba(42, 37, 33, 0.07);
  --shadow-md: 0 10px 28px rgba(53, 86, 110, 0.14);
  --shadow-lg: 0 24px 48px rgba(53, 86, 110, 0.2);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --font-heading: "Bricolage Grotesque", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-body: "Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --font-hand: "Caveat", cursive;
  --max-width: 1160px;
  --header-height: 76px;
}

/* ===== Reset ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
section[id], main [id] { scroll-margin-top: var(--header-height); }

::selection { background: var(--color-accent); color: #3A2410; }

:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 3px;
  border-radius: 4px;
}

.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  z-index: 200;
  transition: width .1s ease-out;
}

::-webkit-scrollbar { width: 12px; }
::-webkit-scrollbar-track { background: var(--color-bg-alt); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--color-primary), var(--color-secondary));
  border-radius: 10px;
  border: 3px solid var(--color-bg-alt);
}

h1, h2, h3 { font-family: var(--font-heading); font-weight: 800; line-height: 1.2; letter-spacing: -0.02em; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}
.container--narrow { max-width: 780px; }

.label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}
.label::before {
  content: "";
  width: 16px;
  height: 2px;
  background: var(--color-seal);
}

.section { padding: clamp(56px, 9vw, 96px) 0; position: relative; }
.section--alt {
  background: var(--color-bg-alt);
  background-image: radial-gradient(var(--color-border) 1px, transparent 1px);
  background-size: 22px 22px;
  background-position: -11px -11px;
}
.section--alt > .container { position: relative; }
.section__title {
  font-size: clamp(24px, 3.4vw, 34px);
  margin-bottom: clamp(32px, 5vw, 48px);
  max-width: 620px;
}
.section__title:has(+ .section__lead) { margin-bottom: 14px; }
.section__lead {
  color: var(--color-text-light);
  font-size: 15.5px;
  max-width: 520px;
  margin-bottom: clamp(32px, 5vw, 48px);
}

/* ===== Scroll reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s cubic-bezier(.22,.61,.36,1), transform .7s cubic-bezier(.22,.61,.36,1);
}
.reveal.is-visible { opacity: 1; transform: none; }
.grid .reveal:nth-child(2) { transition-delay: .08s; }
.grid .reveal:nth-child(3) { transition-delay: .16s; }
.grid .reveal:nth-child(4) { transition-delay: .24s; }
.steps .reveal:nth-child(2) { transition-delay: .1s; }
.steps .reveal:nth-child(3) { transition-delay: .2s; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn--accent {
  background: var(--color-accent);
  color: #3A2410;
  box-shadow: 0 6px 16px rgba(198, 138, 46, 0.4);
}
.btn--accent:hover { background: var(--color-accent-dark); box-shadow: 0 10px 24px rgba(198, 138, 46, 0.5); }
.btn--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 6px 16px rgba(53, 86, 110, 0.3);
}
.btn--primary:hover { background: var(--color-primary-dark); box-shadow: 0 10px 24px rgba(53, 86, 110, 0.4); }
.btn--ghost { background: rgba(255,255,255,0.08); color: #fff; border: 2px solid rgba(255,255,255,0.55); }
.btn--ghost:hover { background: rgba(255,255,255,0.16); }
.btn--lg { padding: 17px 30px; font-size: 16px; }
.btn--sm { padding: 9px 18px; font-size: 13px; }
.btn--block { width: 100%; }

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247,240,228,0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: box-shadow .25s ease, height .25s ease;
}
.header--scrolled {
  box-shadow: 0 8px 24px rgba(42,37,33,0.08);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 22px;
}
.logo span {
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.logo__mark { flex-shrink: 0; }
.nav {
  display: flex;
  gap: 30px;
}
.nav__link {
  position: relative;
  font-weight: 600;
  font-size: 15px;
  color: var(--color-text-light);
  padding: 4px 0;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-secondary), var(--color-accent));
  border-radius: 2px;
  transition: right .2s ease;
}
.nav__link:hover { color: var(--color-primary); }
.nav__link:hover::after { right: 0; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform .2s ease, opacity .2s 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); }

/* ===== Hero ===== */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  padding: clamp(64px, 12vw, 110px) 0 clamp(64px, 10vw, 96px);
}
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
}
.hero::before {
  width: 420px; height: 420px;
  background: rgba(198, 138, 46, 0.35);
  top: -160px; right: -120px;
}
.hero::after {
  width: 360px; height: 360px;
  background: rgba(255, 255, 255, 0.12);
  bottom: -180px; left: -100px;
}
.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: #E6EDF3;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.eyebrow::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(198,138,46,0.25);
}
.hero h1 {
  font-size: clamp(30px, 5.2vw, 48px);
  margin-bottom: 20px;
  text-shadow: 0 4px 24px rgba(0,0,0,0.15);
}
.hero__subtitle {
  font-size: clamp(15.5px, 2vw, 18px);
  color: #E6EDF3;
  max-width: 520px;
  margin-bottom: 36px;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.hero__art { position: relative; display: flex; justify-content: center; }

/* Elemento distintivo: una póliza revisada a mano, con el precio
   marcado en birome roja, como si alguien de Fraseguros ya la hubiera
   mirado y encontrado dónde ahorrar. */
.doc-card {
  position: relative;
  width: 100%;
  max-width: 320px;
  background: #FCFAF3;
  color: var(--color-text);
  border-radius: 6px;
  padding: 26px 24px 34px;
  box-shadow: var(--shadow-lg);
  transform: rotate(-2deg);
  animation: doc-settle .8s cubic-bezier(.22,.61,.36,1) both;
}
@keyframes doc-settle {
  from { opacity: 0; transform: rotate(-2deg) translateY(18px); }
  to { opacity: 1; transform: rotate(-2deg) translateY(0); }
}
.doc-card__tab {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.5px;
  color: var(--color-text-light);
  padding-bottom: 12px;
  margin-bottom: 18px;
  border-bottom: 1px dashed var(--color-border);
}
.doc-card__row {
  height: 8px;
  border-radius: 4px;
  background: var(--color-bg-alt);
  margin-bottom: 10px;
}
.doc-card__row--short { width: 55%; }
.doc-card__price-row {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin: 22px 0 8px;
}
.doc-card__label { font-family: var(--font-mono); font-size: 12px; color: var(--color-text-light); }
.doc-card__price { font-family: var(--font-heading); font-size: 23px; font-weight: 800; }
.doc-card__ring {
  position: absolute;
  inset: -18px -14px;
  width: calc(100% + 28px);
  height: calc(100% + 36px);
  pointer-events: none;
  overflow: visible;
}
.doc-card__ring-path {
  fill: none;
  stroke: var(--color-seal);
  stroke-width: 2.5;
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
  stroke-dasharray: 340;
  stroke-dashoffset: 340;
  animation: draw-ring 1s ease-out .9s forwards;
}
@keyframes draw-ring { to { stroke-dashoffset: 0; } }
.doc-card__note {
  font-family: var(--font-hand);
  color: var(--color-seal);
  font-size: 25px;
  line-height: 1;
  text-align: right;
  transform: rotate(-3deg);
  margin: 2px 4px 20px 0;
  opacity: 0;
  animation: note-in .5s ease-out 1.7s forwards;
}
@keyframes note-in {
  from { opacity: 0; transform: rotate(-3deg) translateY(6px); }
  to { opacity: 1; transform: rotate(-3deg) translateY(0); }
}
.doc-card__stamp {
  position: absolute;
  top: 18px;
  right: -10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  white-space: nowrap;
  color: var(--color-seal);
  border: 2px solid var(--color-seal);
  border-radius: 6px;
  padding: 5px 12px;
  transform: rotate(9deg);
  opacity: 0.8;
}

@media (prefers-reduced-motion: reduce) {
  .doc-card, .doc-card__note { animation: none; opacity: 1; }
  .doc-card__ring-path { animation: none; stroke-dashoffset: 0; }
}

/* Divisor: la hoja "se rasga" hacia la sección siguiente */
.hero__tear {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  z-index: 1;
  pointer-events: none;
}
.hero__perforation {
  height: 10px;
  background-image: radial-gradient(circle, rgba(255,255,255,0.55) 1.5px, transparent 1.6px);
  background-size: 14px 10px;
  background-repeat: repeat-x;
  background-position: center;
}
.hero__tear-svg { display: block; width: 100%; height: 32px; }

/* ===== Promo (revisión de póliza) ===== */
.promo {
  background: var(--color-bg);
  padding: clamp(36px, 6vw, 56px) 0;
  border-bottom: 1px solid var(--color-border);
}
.promo__inner {
  display: flex;
  align-items: center;
  gap: 28px;
}
.promo__icon {
  position: relative;
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  border-radius: 18px;
  background: var(--color-accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}
.promo__icon-ring {
  position: absolute;
  inset: -8px;
  border: 2px dashed var(--color-seal);
  border-radius: 50%;
  opacity: 0.55;
  transform: rotate(-8deg);
}
.promo__text { flex-grow: 1; }
.promo__text h2 {
  font-size: clamp(19px, 2.4vw, 24px);
  margin-bottom: 6px;
}
.promo__text p {
  color: var(--color-text-light);
  font-size: 15px;
  max-width: 640px;
}
.promo__cta { flex-shrink: 0; }

/* ===== Grid / Cards ===== */
.grid { display: grid; gap: 24px; }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 30px 24px;
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
  border-color: rgba(198, 138, 46, 0.35);
}
.card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  border-radius: 16px;
  background: var(--color-primary-soft);
  margin-bottom: 18px;
  transition: transform .25s ease;
}
.card:hover .card__icon { transform: scale(1.08) rotate(-4deg); }
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { color: var(--color-text-light); font-size: 14.5px; }
.card--service {
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}
.card--service::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity .25s ease;
}
.card--service:hover::before { opacity: 1; }
.card--service .card__icon { background: var(--color-accent-soft); }
.card--service p { flex-grow: 1; margin-bottom: 22px; }

/* ===== Franja de confianza ===== */
.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.trust-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 12px 20px;
  font-size: 14.5px;
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}
.trust-badge__mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  font-size: 13px;
  font-weight: 700;
}

/* ===== Steps ===== */
.steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.steps::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--color-border) 0 10px, transparent 10px 18px);
  z-index: 0;
}
.step { position: relative; z-index: 1; }
.step__number {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  margin-bottom: 18px;
  box-shadow: 0 8px 18px rgba(53,86,110,0.3);
}
.step h3 { font-size: 18px; margin-bottom: 8px; }
.step p { color: var(--color-text-light); font-size: 14.5px; }

/* ===== Accordion ===== */
.accordion {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.accordion__item {
  border-bottom: 1px solid var(--color-border);
  transition: background .2s ease;
}
.accordion__item:last-child { border-bottom: none; }
.accordion__item.is-open { background: var(--color-primary-soft); }
.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 24px;
  text-align: left;
  font-weight: 700;
  font-size: 16px;
}
.accordion__icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  margin-left: 16px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  color: var(--color-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: transform .25s ease, background .25s ease, color .25s ease;
}
.accordion__item.is-open .accordion__icon {
  transform: rotate(45deg);
  background: var(--color-secondary);
  color: #fff;
}
.accordion__panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height .25s ease;
}
.accordion__panel p {
  padding: 0 24px 22px;
  color: var(--color-text-light);
  font-size: 15px;
}

/* ===== Redes sociales ===== */
.social-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.social-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.social-card__header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--color-border);
}
.social-card__icon {
  font-size: 26px;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 12px;
  background: var(--color-primary-soft);
  display: flex;
  align-items: center;
  justify-content: center;
}
.social-card__title {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}
.social-card__title strong { font-size: 15px; }
.social-card__title span { font-size: 13px; color: var(--color-text-light); }
.social-card__body {
  min-height: 320px;
  display: flex;
  align-items: stretch;
  justify-content: center;
}
.social-card__body { overflow-x: auto; }
.social-card__body iframe { max-width: 100%; border: none; }

.social-placeholder {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 32px 24px;
  text-align: center;
  background: var(--color-bg-alt);
}
.social-placeholder p { color: var(--color-text-light); font-size: 14.5px; max-width: 280px; }

@media (max-width: 900px) {
  .social-grid { grid-template-columns: 1fr; }
}

/* ===== Contact ===== */
.contact {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact__form {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-md);
}
.form__group { margin-bottom: 20px; }
.form__group label {
  display: block;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 7px;
}
.form__group input,
.form__group select,
.form__group textarea {
  width: 100%;
  padding: 13px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font: inherit;
  background: var(--color-bg-alt);
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
  outline: none;
  border-color: var(--color-secondary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(124, 147, 166, 0.18);
}
.form__honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.form__status {
  margin-top: 14px;
  font-size: 14px;
  font-weight: 600;
  min-height: 20px;
}
.form__status.is-success { color: #15803D; }
.form__status.is-error { color: #B91C1C; }

.contact__info {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.contact__info-item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease;
}
.contact__info-item:hover { transform: translateX(4px); box-shadow: var(--shadow-md); }
.contact__info-item strong {
  display: block;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-secondary);
  margin-bottom: 6px;
}
.contact__info-item a,
.contact__info-item span { font-size: 16px; font-weight: 600; }

/* ===== Footer ===== */
.footer {
  position: relative;
  background: #26364A;
  color: #D7DEE6;
  padding: 52px 0 24px;
}
.footer::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 28px;
}
.logo--footer {
  color: #fff;
  background: none;
  -webkit-text-fill-color: initial;
  margin-bottom: 8px;
}
.footer p { max-width: 320px; font-size: 14px; }
.footer__contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
}
.footer__contact a { transition: color .2s ease; }
.footer__contact a:hover { color: var(--color-accent); }
.footer__copy {
  text-align: center;
  font-size: 13px;
  color: #93A2B3;
  border-top: 1px solid #33465C;
  padding-top: 22px;
}

/* ===== Floating WhatsApp button ===== */
.floating-wa {
  position: fixed;
  bottom: 26px;
  right: 26px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--color-whatsapp);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 28px rgba(37, 211, 102, 0.45);
  z-index: 90;
  transition: transform .18s ease;
}
.floating-wa::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--color-whatsapp);
  animation: pulse 2.4s ease-out infinite;
  z-index: -1;
}
@keyframes pulse {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.9); opacity: 0; }
}
.floating-wa:hover { transform: scale(1.08); }

.back-to-top {
  position: fixed;
  bottom: 26px;
  right: 96px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
}
.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover { transform: translateY(-3px); }

@media (max-width: 720px) {
  .floating-wa { width: 52px; height: 52px; bottom: 20px; right: 20px; }
  .back-to-top { right: 78px; width: 42px; height: 42px; bottom: 20px; }
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__art { display: none; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .steps::before { display: none; }
  .contact { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: 24px 20px;
    gap: 4px;
    overflow-y: auto;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: transform .2s ease, opacity .2s ease, visibility .2s;
  }
  .nav.is-open { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav__link { padding: 14px 8px; font-size: 18px; border-radius: var(--radius-sm); border-bottom: 1px solid var(--color-border); }
  .nav__link::after { display: none; }
  .nav__link:hover { background: var(--color-bg-alt); }
  .nav-toggle { display: flex; z-index: 101; position: relative; }
  body.nav-open { overflow: hidden; }

  /* backdrop-filter en el header crea un "containing block" para los
     hijos position:fixed (como .nav), lo que rompe el menú a pantalla
     completa en mobile. Se desactiva solo en este breakpoint. */
  .header { backdrop-filter: none; -webkit-backdrop-filter: none; background: var(--color-bg); }
  .header__cta { display: none; }
  .grid--4 { grid-template-columns: 1fr; }
  .promo__inner { flex-direction: column; text-align: center; }
  .promo__cta { width: 100%; }
}