/* ==========================================================================
   Susana Sanz · Psicoterapia
   Paleta aqua / azul pizarra · Tipografía Cal Sans + Montserrat
   ========================================================================== */

/* Tipografías (alojadas en local) */
@font-face {
  font-family: "Cal Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/cal-sans.woff2") format("woff2");
}
@font-face {
  font-family: "Montserrat";
  font-style: normal;
  font-weight: 300 600;
  font-display: swap;
  src: url("../fonts/montserrat.woff2") format("woff2");
}
@font-face {
  font-family: "Montserrat";
  font-style: italic;
  font-weight: 300 600;
  font-display: swap;
  src: url("../fonts/montserrat-italic.woff2") format("woff2");
}

:root {
  --white: #ffffff;
  --aqua: #e3f2f3;
  --aqua-soft: #f1f8f8;
  --aqua-deep: #c6e0e2;
  --slate: #24425a;
  --slate-dark: #1b3347;
  --teal: #3f7585;
  --ink: #2a2f33;
  --muted: #5f6a70;
  --line: rgba(36, 66, 90, 0.16);
  --line-light: rgba(227, 242, 243, 0.2);
  --error: #b4473a;

  --display: "Cal Sans", "Montserrat", "Helvetica Neue", Arial, sans-serif;
  --sans: "Montserrat", "Helvetica Neue", Helvetica, Arial, sans-serif;

  --header-h: 5rem;
  --gutter: clamp(1.25rem, 5vw, 3rem);
  --section: clamp(4.5rem, 10vw, 8rem);
  --radius: 1.25rem;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* Base
   ========================================================================== */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1, h2, h3, p, ul, ol, dl, dd, figure, blockquote, fieldset { margin: 0; padding: 0; }
ul, ol { list-style: none; }
fieldset { border: 0; min-width: 0; }

a { color: inherit; text-decoration: none; }

/* Los énfasis de los títulos van en color, no en cursiva */
em { font-style: normal; }

::selection { background: var(--slate); color: var(--aqua); }

:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}

.container {
  width: 100%;
  max-width: 76rem;
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow { max-width: 56rem; }

.section { padding-block: var(--section); }

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  padding: 0.6rem 1rem;
  background: var(--slate);
  color: var(--white);
  font-size: 0.875rem;
  transition: top 0.2s;
}
.skip-link:focus { top: 1rem; }

/* Piezas comunes
   ========================================================================== */
.eyebrow {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  margin-bottom: 1.4rem;
  color: var(--teal);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  line-height: 1.5;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  flex: none;
  width: 2rem;
  height: 2px;
  margin-top: 0.5rem;
  border-radius: 2px;
  background: currentColor;
}
.eyebrow--light { color: var(--aqua-deep); }

.title {
  font-family: var(--display);
  font-size: clamp(1.75rem, 3.4vw, 2.6rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  text-wrap: balance;
}
.title em { color: var(--teal); }
.title--light { color: var(--white); }
.title--light em { color: var(--aqua-deep); }
.title--xl { font-size: clamp(2rem, 4vw, 3.1rem); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem 2rem;
  border: 1.5px solid var(--slate);
  border-radius: 999px;
  background: var(--slate);
  color: var(--white);
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  line-height: 1;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.35s var(--ease), color 0.35s var(--ease), border-color 0.35s var(--ease);
}
.btn__arrow {
  font-size: 1rem;
  letter-spacing: 0;
  transition: transform 0.35s var(--ease);
}
.btn:hover { background: transparent; color: var(--slate); }
.btn:hover .btn__arrow { transform: translateX(5px); }
.btn[disabled] { opacity: 0.6; cursor: progress; }

.btn--outline { background: transparent; color: var(--slate); }
.btn--outline:hover { background: var(--slate); color: var(--white); }

.link {
  position: relative;
  padding-bottom: 0.3rem;
  color: var(--slate);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.link::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1.5px;
  background: currentColor;
  transform-origin: left;
  transition: transform 0.45s var(--ease);
}
.link:hover::after { transform: scaleX(0.35); }

/* Cabecera
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--white);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s, box-shadow 0.4s;
}
.header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 8px 30px rgba(36, 66, 90, 0.06);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  min-height: var(--header-h);
}

.brand { display: flex; align-items: baseline; gap: 0.85rem; }
.brand__name {
  font-family: var(--display);
  font-size: 1.4rem;
  letter-spacing: 0.02em;
  line-height: 1;
  text-transform: uppercase;
  color: var(--slate);
}
.brand__role {
  color: var(--muted);
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2.6vw, 2.5rem);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.nav a:not(.nav__cta) {
  position: relative;
  padding-block: 0.4rem;
  color: var(--ink);
}
.nav a:not(.nav__cta)::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  border-radius: 2px;
  background: var(--teal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.nav a:not(.nav__cta):hover::after { transform: scaleX(1); }
.nav__cta {
  padding: 0.75rem 1.5rem;
  border: 1.5px solid var(--slate);
  border-radius: 999px;
  color: var(--slate);
  transition: background 0.35s var(--ease), color 0.35s var(--ease);
}
.nav__cta:hover { background: var(--slate); color: var(--white); }

.nav-toggle {
  display: none;
  position: relative;
  z-index: 60;
  width: 2.75rem;
  height: 2.75rem;
  margin-right: -0.5rem;
  border: 0;
  background: none;
  cursor: pointer;
}
.nav-toggle span {
  position: absolute;
  left: 0.6rem;
  right: 0.6rem;
  height: 2px;
  border-radius: 2px;
  background: var(--slate);
  transition: transform 0.35s var(--ease), top 0.35s var(--ease);
}
.nav-toggle span:first-child { top: 1.1rem; }
.nav-toggle span:last-child { top: 1.6rem; }
.nav-toggle[aria-expanded="true"] span:first-child { top: 1.35rem; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:last-child { top: 1.35rem; transform: rotate(-45deg); }

/* Hero
   ========================================================================== */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--aqua);
  padding-block: clamp(3rem, 7vw, 6rem) clamp(3.5rem, 8vw, 6.5rem);
}
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  align-items: center;
  gap: clamp(2.5rem, 7vw, 6.5rem);
}
.hero__title {
  font-family: var(--display);
  font-size: clamp(2.2rem, 4.9vw, 3.9rem);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--slate);
  text-wrap: balance;
}
.hero__title em { color: var(--teal); }
.hero__lead {
  max-width: 31rem;
  margin-top: 1.6rem;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  font-weight: 400;
  line-height: 1.65;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem 2.25rem;
  margin-top: 2.5rem;
}
.hero__modes {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 3rem;
  margin-top: clamp(2.5rem, 5vw, 4rem);
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
}
.hero__modes li {
  font-family: var(--display);
  font-size: 1.15rem;
  letter-spacing: 0.04em;
  line-height: 1.2;
  text-transform: uppercase;
  color: var(--slate);
}
.hero__modes span {
  display: block;
  margin-top: 0.35rem;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero__figure {
  width: 100%;
  max-width: 26rem;
  margin-inline: auto;
}
.circle {
  position: relative;
  aspect-ratio: 1;
}
.circle::before {
  content: "";
  position: absolute;
  inset: -6%;
  border-radius: 50%;
  background: var(--white);
  opacity: 0.6;
}
.circle::after {
  content: "";
  position: absolute;
  inset: -6%;
  border: 1.5px solid var(--slate);
  border-radius: 50%;
  opacity: 0.25;
}
.circle img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  object-position: 50% 30%;
  box-shadow: 0 24px 60px rgba(36, 66, 90, 0.18);
}
.hero__figure figcaption {
  margin-top: 2rem;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.7;
  text-align: center;
}

/* Sobre mí
   ========================================================================== */
.about { background: var(--white); }
.about__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: start;
  gap: 2.5rem clamp(2.5rem, 8vw, 7rem);
}
.about__head { position: sticky; top: 7.5rem; }
.about__text > p { color: var(--muted); }
.about__text > p + p { margin-top: 1.4rem; }

.facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 2.75rem;
  padding-top: 2.25rem;
  border-top: 1px solid var(--line);
}
.facts dt {
  color: var(--slate);
  font-family: var(--display);
  font-size: clamp(1.9rem, 3.2vw, 2.6rem);
  line-height: 1;
}
.facts dd {
  margin-top: 0.7rem;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.5;
}

/* Declaración
   ========================================================================== */
.statement {
  padding-block: var(--section);
  background: var(--slate);
  color: var(--white);
  text-align: center;
}
.statement__mark {
  display: block;
  height: 3rem;
  color: var(--aqua-deep);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 5.5rem;
  line-height: 1;
}
.statement blockquote p {
  font-family: var(--sans);
  font-size: clamp(1.25rem, 2.4vw, 1.8rem);
  font-weight: 300;
  line-height: 1.5;
  text-wrap: pretty;
}
.statement blockquote em { color: var(--aqua-deep); font-weight: 500; }
.statement__sign {
  margin-top: 2.5rem;
  color: var(--aqua-deep);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

/* Especialidades
   ========================================================================== */
.services { background: var(--white); color: var(--ink); }
.services__head {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  align-items: end;
  gap: 2rem clamp(2rem, 6vw, 5rem);
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.services .eyebrow--light { color: var(--teal); }
.services .title--light { color: var(--slate); }
.services .title--light em { color: var(--teal); }
.services__intro { max-width: 26rem; color: var(--muted); }

.services__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem clamp(1.25rem, 3vw, 2rem);
}
.services__list li {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  min-height: 6.25rem;
  padding: 1.5rem 1.6rem;
  border-radius: var(--radius);
  background: var(--aqua-soft);
  border: 1px solid transparent;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), transform 0.35s var(--ease);
}
.services__list li:hover {
  background: var(--aqua);
  border-color: var(--aqua-deep);
  transform: translateY(-2px);
}
.services__num {
  flex: none;
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--white);
  color: var(--teal);
  font-family: var(--display);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
}
.services__list h3 {
  margin-top: 0.3rem;
  font-family: var(--display);
  font-size: 1.1rem;
  letter-spacing: 0.03em;
  line-height: 1.3;
  text-transform: uppercase;
  color: var(--slate);
}
.services__list p {
  margin-top: 0.3rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* Formación
   ========================================================================== */
.education { background: var(--aqua); }
.education__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  align-items: start;
  gap: 2.5rem clamp(2.5rem, 8vw, 7rem);
}
.education__head { position: sticky; top: 7.5rem; }
.timeline {
  background: var(--white);
  border-radius: var(--radius);
  padding: 0.5rem clamp(1.25rem, 3vw, 2.5rem);
}
.timeline li {
  display: grid;
  grid-template-columns: 7.5rem minmax(0, 1fr);
  align-items: baseline;
  gap: 1.5rem;
  padding-block: 1.75rem;
  border-bottom: 1px solid var(--line);
}
.timeline li:last-child { border-bottom: 0; }
.timeline__tag {
  color: var(--teal);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.timeline h3 {
  font-family: var(--display);
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  line-height: 1.35;
  text-transform: uppercase;
  color: var(--slate);
}
.timeline .timeline__more { margin-top: 1.1rem; }
.timeline p {
  margin-top: 0.4rem;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

/* Cómo empezamos
   ========================================================================== */
.steps { background: var(--white); }
.steps__head { margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.steps__list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 2.5rem);
}
.steps__list li {
  position: relative;
  padding-top: 0.5rem;
}
.steps__num {
  display: grid;
  place-items: center;
  width: 3.75rem;
  height: 3.75rem;
  border-radius: 50%;
  background: var(--aqua);
  color: var(--slate);
  font-family: var(--display);
  font-size: 1.4rem;
}
.steps__label {
  margin-top: 1.5rem;
  color: var(--teal);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.steps__list h3 {
  margin-top: 0.4rem;
  font-family: var(--display);
  font-size: 1.15rem;
  letter-spacing: 0.03em;
  line-height: 1.3;
  text-transform: uppercase;
  color: var(--slate);
}
.steps__list h3 + p {
  margin-top: 0.85rem;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.65;
}

/* Contacto
   ========================================================================== */
.contact { background: var(--aqua); }
.contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: start;
  gap: 3rem clamp(2.5rem, 7vw, 6rem);
}
.contact__intro > p:not(.eyebrow) {
  max-width: 26rem;
  margin-top: 1.75rem;
  color: var(--muted);
}
.contact__modes {
  margin-top: 2.5rem;
  border-top: 1px solid var(--line);
  max-width: 26rem;
}
.contact__modes li {
  padding-block: 1rem;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}
.contact__modes strong {
  margin-right: 0.5rem;
  color: var(--slate);
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.contact__follow {
  margin-top: 2rem;
  color: var(--teal);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* Redes sociales */
.social {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.9rem;
}
.social a {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 1.1rem 0.6rem 0.75rem;
  border: 1.5px solid var(--slate);
  border-radius: 999px;
  color: var(--slate);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}
.social svg { width: 1.2rem; height: 1.2rem; }
.social a:hover { background: var(--slate); color: var(--white); }
.social--footer { margin-top: 1.25rem; }
.social--footer a {
  border-color: rgba(227, 242, 243, 0.4);
  color: var(--aqua);
}
.social--footer a:hover { background: var(--aqua); color: var(--slate); }

.form {
  padding: clamp(1.75rem, 4.5vw, 3rem);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 24px 60px rgba(36, 66, 90, 0.08);
}
.form__row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 2rem;
}
.field { margin-bottom: 1.6rem; }
.field label,
.field legend {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--slate);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field textarea {
  display: block;
  width: 100%;
  padding: 0.85rem 1.1rem;
  border: 1.5px solid var(--aqua-deep);
  border-radius: 0.75rem;
  background: var(--aqua-soft);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
  appearance: none;
}
.field textarea { min-height: 7rem; resize: vertical; }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--teal);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(63, 117, 133, 0.15);
}
.field.has-error input[type="text"],
.field.has-error input[type="tel"],
.field.has-error input[type="email"],
.field.has-error textarea { border-color: var(--error); }
.field__error {
  margin-top: 0.45rem;
  color: var(--error);
  font-size: 0.84rem;
  line-height: 1.4;
}
.field__error:empty { display: none; }

.choices {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.25rem;
}
.choice { position: relative; }
.choice input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.choice span {
  display: inline-block;
  padding: 0.7rem 1.6rem;
  border: 1.5px solid var(--slate);
  border-radius: 999px;
  color: var(--slate);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}
.choice:hover span { background: var(--aqua); }
.choice input:checked + span {
  background: var(--slate);
  color: var(--white);
}
.choice input:focus-visible + span {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}

.field .check {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.55;
  text-transform: none;
  cursor: pointer;
}
.check input {
  flex: none;
  width: 1.1rem;
  height: 1.1rem;
  margin: 0.18rem 0 0;
  accent-color: var(--slate);
}

.form__hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.form__footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
}
.form__note { color: var(--muted); font-size: 0.82rem; }
.form__status {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  border-radius: 0.75rem;
  background: var(--aqua);
  color: var(--slate);
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.55;
}
.form__status:empty { display: none; }
.form__status:focus { outline: none; }
.form__status.is-error {
  background: rgba(180, 71, 58, 0.08);
  color: var(--error);
}

/* Pie
   ========================================================================== */
.footer {
  padding-block: 3.25rem;
  background: var(--slate);
  color: rgba(227, 242, 243, 0.75);
  font-size: 0.85rem;
  line-height: 1.7;
}
.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem 3rem;
}
.footer__name {
  margin-bottom: 0.2rem;
  color: var(--white);
  font-family: var(--display);
  font-size: 1.4rem;
  letter-spacing: 0.03em;
  line-height: 1.2;
  text-transform: uppercase;
}
.footer__meta { text-align: right; }

/* Página de respuesta del formulario (sin JavaScript) */
.message-page {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: var(--gutter);
  background: var(--aqua);
  text-align: center;
}
.message-page__box { max-width: 34rem; }
.message-page__box .eyebrow { justify-content: center; }
.message-page__box .eyebrow::before { display: none; }
.message-page__box p:not(.eyebrow) { margin-block: 1.5rem 2.5rem; color: var(--muted); }
.message-page__box ul { margin-block: 1.5rem 2.5rem; color: var(--error); }

/* Aparición al hacer scroll (solo con JavaScript activo)
   ========================================================================== */
.js .reveal {
  opacity: 0;
  transform: translateY(1.25rem);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  * { transition-duration: 0.01ms !important; }
}

/* Adaptación a pantallas
   ========================================================================== */
@media (max-width: 1080px) {
  .brand__role { display: none; }
  .steps__list { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 3rem; }
}

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav {
    position: fixed;
    inset: 0;
    z-index: 55;
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    background: var(--aqua);
    font-size: 0.9rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s var(--ease), visibility 0.35s;
  }
  .nav.is-open { opacity: 1; visibility: visible; }
  .nav a:not(.nav__cta) {
    font-family: var(--display);
    font-size: 1.5rem;
    letter-spacing: 0.04em;
    color: var(--slate);
  }
  .nav__cta { margin-top: 1rem; padding: 1rem 2.25rem; }
  body.menu-open { overflow: hidden; }

  .hero__grid,
  .about__grid,
  .services__head,
  .education__grid,
  .contact__grid { grid-template-columns: minmax(0, 1fr); }

  .hero__figure { max-width: min(20rem, 78%); margin-top: 1.5rem; }
  .about__head,
  .education__head { position: static; }
}

@media (max-width: 640px) {
  :root { --header-h: 4.25rem; }
  .brand__name { font-size: 1.2rem; }
  .hero__actions { gap: 1.5rem; }
  .hero__modes { gap: 1.25rem 2.5rem; }
  .services__list { grid-template-columns: minmax(0, 1fr); }
  .services__list li { min-height: 0; }
  .facts { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; }
  .facts div { display: flex; align-items: baseline; gap: 1rem; }
  .facts dt { flex: none; min-width: 5.5rem; }
  .facts dd { margin-top: 0; }
  .timeline li { grid-template-columns: minmax(0, 1fr); gap: 0.5rem; }
  .steps__list { grid-template-columns: minmax(0, 1fr); row-gap: 2.5rem; }
  .form__row { grid-template-columns: minmax(0, 1fr); }
  .footer__meta { text-align: left; }
}