/* =============================================================
   Marta Ríos · Psicología — Hoja de estilos
   Organización:
   1. Variables / tokens
   2. Reset moderno
   3. Base & tipografía
   4. Utilidades & layout
   5. Componentes (botones, header, nav, cards, accordion…)
   6. Secciones
   7. Animaciones (reveal, hover)
   8. Responsive (mobile-first → min-width)
   9. Accesibilidad / reduce-motion
   ============================================================= */

/* ===================== 1. VARIABLES / TOKENS ===================== */
:root {
  /* Paleta: salvia + terracota + crema */
  --c-primary:      #5B7B6F;   /* verde salvia */
  --c-primary-dark: #3A4F47;   /* verde bosque */
  --c-accent:       #C8876A;   /* terracota suave */
  --c-bg:           #F7F4EF;   /* crema cálido */
  --c-surface:      #FFFFFF;   /* blanco hueso */
  --c-text:         #2E332F;   /* gris pizarra cálido */
  --c-text-soft:    #6E7470;   /* gris topo */
  --c-border:       #E7E0D5;   /* arena */

  /* Tipografía */
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  /* Layout */
  --maxw: 1180px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --radius: 18px;
  --radius-sm: 12px;

  /* Espaciado vertical de secciones (pausado = calma) */
  --section-y: clamp(4rem, 9vw, 8rem);

  /* Sombras suaves y difusas */
  --shadow-sm: 0 4px 14px rgba(58, 79, 71, 0.06);
  --shadow-md: 0 14px 40px rgba(58, 79, 71, 0.10);
  --shadow-lg: 0 28px 70px rgba(58, 79, 71, 0.14);

  /* Movimiento */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --t-fast: 200ms;
  --t-med: 320ms;
}

/* ===================== 2. RESET MODERNO ===================== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
img, svg { display: block; max-width: 100%; }
img { height: auto; }
button, input, textarea { font: inherit; color: inherit; }
ul[class] { list-style: none; padding: 0; }
a { color: inherit; }

/* ===================== 3. BASE & TIPOGRAFÍA ===================== */
body {
  font-family: var(--font-body);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.65;
  font-size: 1.0625rem;          /* 17px base */
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--c-primary-dark);
}

h1 { font-size: clamp(2.4rem, 6vw, 4rem); }
h2 { font-size: clamp(1.9rem, 4vw, 2.85rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.4rem); letter-spacing: -0.01em; }

p { color: var(--c-text); }

.eyebrow {
  font-family: var(--font-body);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--c-accent);
  margin-bottom: 0.85rem;
}

::selection { background: var(--c-primary); color: var(--c-bg); }

/* ===================== 4. UTILIDADES & LAYOUT ===================== */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); }
.section--alt { background: var(--c-surface); }

.section__head {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.section__title { margin-bottom: 0.9rem; }
.section__sub { color: var(--c-text-soft); font-size: 1.08rem; }

/* CTA secundario (tras Servicios y Testimonios) */
.section__cta { text-align: center; margin-top: clamp(2.5rem, 5vw, 3.5rem); }
.section__cta-text {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.5vw, 1.4rem);
  color: var(--c-primary-dark);
  margin-bottom: 1.1rem;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--c-primary-dark);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 200;
}
.skip-link:focus { left: 0; }

/* Foco visible accesible */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--c-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ===================== 5. COMPONENTES ===================== */

/* --- Botones --- */
.btn {
  --btn-bg: var(--c-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  border: 1.5px solid transparent;
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--t-fast) var(--ease-out),
              background-color var(--t-fast) var(--ease-out),
              box-shadow var(--t-fast) var(--ease-out),
              color var(--t-fast) var(--ease-out);
  will-change: transform;
}
.btn--lg { padding: 1.05rem 2.1rem; font-size: 1.02rem; }

.btn--solid { background: var(--btn-bg); color: #fff; box-shadow: var(--shadow-sm); }
.btn--solid:hover { background: var(--c-primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-md); }

.btn--ghost { background: transparent; color: var(--c-primary-dark); border-color: var(--c-border); }
.btn--ghost:hover { background: var(--c-surface); border-color: var(--c-primary); transform: translateY(-2px); }

/* --- Marca --- */
.brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
  color: var(--c-primary-dark);
  text-decoration: none;
}
.brand__dot { color: var(--c-accent); }

/* --- Header dinámico --- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: transparent;
  transition: background-color var(--t-med) var(--ease-out),
              box-shadow var(--t-med) var(--ease-out),
              backdrop-filter var(--t-med) var(--ease-out);
}
.site-header.is-scrolled {
  background: rgba(247, 244, 239, 0.85);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--c-border), var(--shadow-sm);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1.1rem;
}

/* --- Navegación --- */
.nav__list { display: flex; align-items: center; gap: 0.4rem; }
.nav__link {
  text-decoration: none;
  color: var(--c-text);
  font-weight: 500;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  transition: color var(--t-fast), background-color var(--t-fast);
}
.nav__link:hover { color: var(--c-primary-dark); background: rgba(91, 123, 111, 0.08); }
.nav__cta { margin-left: 0.6rem; }

/* Botón hamburguesa */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 120;
}
.nav-toggle__bar {
  width: 26px;
  height: 2px;
  background: var(--c-primary-dark);
  border-radius: 2px;
  transition: transform var(--t-med) var(--ease-out), opacity var(--t-fast);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --- Tarjetas servicios --- */
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--t-med) var(--ease-out), box-shadow var(--t-med) var(--ease-out);
  height: 100%;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.card__icon {
  width: 56px; height: 56px;
  display: grid; place-items: center;
  border-radius: 14px;
  background: rgba(91, 123, 111, 0.10);
  color: var(--c-primary);
  margin-bottom: 1.25rem;
}
.card__icon svg { width: 28px; height: 28px; }
.card__title { margin-bottom: 0.6rem; }
.card__text { color: var(--c-text-soft); }

/* --- Acordeón FAQ --- */
.accordion { max-width: 800px; margin-inline: auto; }
.accordion__item {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  margin-bottom: 0.85rem;
  overflow: hidden;
}
.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  text-align: left;
  background: transparent;
  border: none;
  padding: 1.25rem 1.4rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--c-primary-dark);
  transition: background-color var(--t-fast);
}
.accordion__trigger:hover { background: rgba(91, 123, 111, 0.05); }
.accordion__icon {
  position: relative;
  width: 18px; height: 18px;
  flex-shrink: 0;
}
.accordion__icon::before,
.accordion__icon::after {
  content: "";
  position: absolute;
  background: var(--c-accent);
  border-radius: 2px;
  transition: transform var(--t-med) var(--ease-out);
}
.accordion__icon::before { top: 8px; left: 0; width: 18px; height: 2px; }
.accordion__icon::after  { top: 0; left: 8px; width: 2px; height: 18px; }
.accordion__trigger[aria-expanded="true"] .accordion__icon::after { transform: scaleY(0); }
.accordion__panel {
  padding: 0 1.4rem;
  color: var(--c-text-soft);
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height var(--t-med) var(--ease-out),
              opacity var(--t-med) var(--ease-out),
              padding var(--t-med) var(--ease-out);
}
.accordion__panel.is-open { opacity: 1; padding: 0 1.4rem 1.3rem; }

/* --- Formulario contacto --- */
.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.1rem;
  max-width: 640px;
  margin: 2.5rem auto 0;
  text-align: left;
  background: var(--c-surface);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}
.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: 0.92rem; font-weight: 600; }
.field__opt { font-weight: 400; color: var(--c-text-soft); }
.field input,
.field textarea {
  padding: 0.85rem 1rem;
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-surface);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 4px rgba(91, 123, 111, 0.15);
}
.field--check {
  flex-direction: row;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.92rem;
}
.field--check input { width: 18px; height: 18px; accent-color: var(--c-primary); }
.field--check a { color: var(--c-primary-dark); }
.form-feedback { grid-column: 1 / -1; margin: 0; font-weight: 600; color: var(--c-primary-dark); }
.form-feedback.is-error { color: #b3463a; }

/* ===================== 6. SECCIONES ===================== */

/* --- Hero --- */
.hero {
  position: relative;
  padding-top: clamp(8rem, 16vh, 11rem);
  padding-bottom: var(--section-y);
  background:
    radial-gradient(120% 80% at 90% 0%, rgba(200, 135, 106, 0.10), transparent 60%),
    radial-gradient(120% 90% at 0% 100%, rgba(91, 123, 111, 0.12), transparent 55%);
}
.hero__inner {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.hero__title { margin-bottom: 1.3rem; }
.hero__title em { font-style: italic; color: var(--c-primary); }
.hero__lead { font-size: 1.18rem; color: var(--c-text-soft); max-width: 30ch; margin-bottom: 2rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-bottom: 1.1rem; }
.hero__note { font-size: 0.92rem; color: var(--c-text-soft); }
.hero__note::before { content: "✓ "; color: var(--c-primary); font-weight: 700; }

.hero__media { position: relative; justify-self: center; }
.hero__img {
  width: min(100%, 480px);
  border-radius: calc(var(--radius) + 8px);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
}
.hero__badge {
  position: absolute;
  bottom: 1.5rem;
  left: -1rem;
  background: var(--c-surface);
  border-radius: var(--radius);
  padding: 0.9rem 1.25rem;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  max-width: 180px;
}
.hero__badge-num { font-family: var(--font-display); font-size: 1.8rem; color: var(--c-accent); font-weight: 600; }
.hero__badge-label { font-size: 0.82rem; color: var(--c-text-soft); }

/* --- Estadísticas / banda de confianza --- */
.stats { background: var(--c-primary-dark); color: var(--c-bg); padding-block: clamp(2.5rem, 5vw, 3.5rem); }
.stats__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem 1rem;
  text-align: center;
}
.stat { display: flex; flex-direction: column; gap: 0.35rem; }
.stat__num {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3rem);
  font-weight: 600;
  color: #fff;
  line-height: 1;
}
.stat__label { font-size: 0.92rem; color: rgba(247, 244, 239, 0.78); }

/* --- Empatía --- */
.empathy__list {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
  max-width: 900px;
  margin-inline: auto;
}
.empathy__item {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-left: 4px solid var(--c-accent);
  border-radius: var(--radius-sm);
  padding: 1.1rem 1.4rem;
  font-size: 1.05rem;
  color: var(--c-primary-dark);
  font-style: italic;
  box-shadow: var(--shadow-sm);
}

/* --- Servicios --- */
.services__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

/* --- Sobre mí --- */
.about__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.about__img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  object-fit: cover;
}
.about__text { color: var(--c-text-soft); margin-bottom: 1.1rem; }
.about__text strong { color: var(--c-text); }
.about__creds { display: flex; flex-wrap: wrap; gap: 0.6rem; margin: 1.5rem 0 2rem; }
.about__cred {
  background: rgba(91, 123, 111, 0.10);
  color: var(--c-primary-dark);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.45rem 0.95rem;
  border-radius: 999px;
}

/* --- Proceso --- */
.process__steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  counter-reset: step;
}
.process__step {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  position: relative;
}
.process__num {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 600;
  color: rgba(200, 135, 106, 0.35);
  line-height: 1;
}
.process__title { margin: 0.5rem 0 0.6rem; }
.process__text { color: var(--c-text-soft); }

/* --- Testimonios --- */
.testimonials__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
.quote {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 2rem 1.85rem;
  box-shadow: var(--shadow-sm);
  position: relative;
}
.quote::before {
  content: "\201C";
  font-family: var(--font-display);
  font-size: 4.5rem;
  line-height: 1;
  color: rgba(91, 123, 111, 0.18);
  position: absolute;
  top: 0.4rem;
  left: 1.1rem;
}
.quote__text {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-style: italic;
  color: var(--c-primary-dark);
  margin-bottom: 1.1rem;
  position: relative;
  z-index: 1;
}
.quote__author { font-size: 0.9rem; font-weight: 600; color: var(--c-text-soft); }

/* --- FAQ inner --- */
.faq__inner { max-width: 900px; margin-inline: auto; }

/* --- CTA final --- */
.cta-final {
  background:
    radial-gradient(110% 120% at 0% 0%, rgba(200, 135, 106, 0.20), transparent 55%),
    var(--c-primary);
  color: var(--c-bg);
  padding-block: var(--section-y);
}
.cta-final__inner { text-align: center; max-width: 760px; margin-inline: auto; }
.cta-final__title { color: #fff; margin-bottom: 0.9rem; }
.cta-final__text { color: rgba(247, 244, 239, 0.9); font-size: 1.12rem; }
/* El formulario es una tarjeta clara: el texto vuelve a tonos oscuros con buen contraste */
.cta-final .field label { color: var(--c-text); }
.cta-final .field__opt { color: var(--c-text-soft); }
.cta-final .field--check label { color: var(--c-text); }
.cta-final .field--check a { color: var(--c-primary-dark); }
.cta-final .form-feedback { color: var(--c-primary-dark); }
.cta-final .form-feedback.is-error { color: #b3463a; }

/* --- Footer --- */
.site-footer { background: var(--c-primary-dark); color: rgba(247, 244, 239, 0.82); padding-top: clamp(3rem, 6vw, 4.5rem); }
.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.25rem;
  padding-bottom: 2.5rem;
}
.brand--footer { color: #fff; }
.footer__tagline { margin: 0.9rem 0; max-width: 34ch; }
.footer__col-id { font-size: 0.85rem; color: rgba(247, 244, 239, 0.6); }
.footer__title { color: #fff; font-size: 1.05rem; margin-bottom: 1rem; }
.footer__list { display: grid; gap: 0.55rem; }
.footer__list a, .footer__help a { color: rgba(247, 244, 239, 0.82); text-decoration: none; transition: color var(--t-fast); }
.footer__list a:hover, .footer__help a:hover { color: var(--c-accent); }
.footer__help { font-size: 0.92rem; }
.footer__help a { font-weight: 600; color: #fff; text-decoration: underline; }
.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-block: 1.5rem;
  border-top: 1px solid rgba(247, 244, 239, 0.14);
  font-size: 0.85rem;
  color: rgba(247, 244, 239, 0.6);
}
.footer__legal { display: flex; flex-wrap: wrap; gap: 1.2rem; }
.footer__legal a { color: rgba(247, 244, 239, 0.6); text-decoration: none; }
.footer__legal a:hover { color: var(--c-accent); }

/* --- CTA sticky móvil (oculto en escritorio) --- */
.mobile-cta { display: none; }

/* ===================== 7. ANIMACIONES ===================== */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: none; }

/* ===================== 8. RESPONSIVE (mobile-first → min-width) ===================== */

/* Tablet */
@media (min-width: 640px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials__grid { grid-template-columns: repeat(2, 1fr); }
  .process__steps { grid-template-columns: repeat(3, 1fr); }
  .footer__grid { grid-template-columns: repeat(2, 1fr); }
  .empathy__list { grid-template-columns: repeat(2, 1fr); }
  .footer__bottom { flex-direction: row; align-items: center; justify-content: space-between; }
}

/* Desktop */
@media (min-width: 960px) {
  .hero__inner { grid-template-columns: 1.05fr 0.95fr; }
  .stats__grid { grid-template-columns: repeat(4, 1fr); }
  .services__grid { grid-template-columns: repeat(4, 1fr); }
  .testimonials__grid { grid-template-columns: repeat(3, 1fr); }
  .empathy__list { grid-template-columns: repeat(3, 1fr); }
  .about__inner { grid-template-columns: 0.85fr 1.15fr; }
  .footer__grid { grid-template-columns: 1.4fr 1fr 1fr 1.2fr; }
}

/* Navegación móvil: overlay a pantalla completa */
@media (max-width: 959px) {
  .nav-toggle { display: flex; }
  .nav {
    position: fixed;
    inset: 0;
    background: var(--c-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateX(100%);
    transition: transform var(--t-med) var(--ease-out);
    z-index: 110;
  }
  .nav.is-open { transform: translateX(0); }
  .nav__list { flex-direction: column; gap: 1.25rem; text-align: center; }
  .nav__link { font-family: var(--font-display); font-size: 1.5rem; }
  .nav__cta { margin-left: 0; margin-top: 0.5rem; }
  body.nav-open { overflow: hidden; }
}

/* Layout amplio del contact-form en móvil pequeño */
@media (max-width: 520px) {
  .contact-form { grid-template-columns: 1fr; }
}

/* CTA sticky móvil visible solo en pantallas pequeñas */
@media (max-width: 720px) {
  .mobile-cta {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 0.6rem;
    position: fixed;
    left: 0; right: 0; bottom: 0;
    z-index: 90;
    padding: 0.7rem 0.85rem calc(0.7rem + env(safe-area-inset-bottom, 0px));
    background: rgba(247, 244, 239, 0.92);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--c-border);
    box-shadow: 0 -6px 24px rgba(58, 79, 71, 0.12);
  }
  .mobile-cta__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.9rem 0.5rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.88rem;
    text-decoration: none;
    transition: transform var(--t-fast) var(--ease-out);
  }
  .mobile-cta__btn:active { transform: scale(0.97); }
  .mobile-cta__btn svg { width: 18px; height: 18px; flex-shrink: 0; }
  .mobile-cta__btn--primary { background: var(--c-primary); color: #fff; }
  .mobile-cta__btn--whatsapp { background: #25D366; color: #fff; }

  /* Espacio para que la barra fija no tape el contenido del footer */
  body { padding-bottom: 5.25rem; }
}

/* ===================== 9. ACCESIBILIDAD / REDUCE-MOTION ===================== */
/* Badge "Portfolio Demo" — elegante y discreto */
.demo-banner {
  position: fixed; left: 1.25rem; bottom: 1.25rem; z-index: 80;
  font-family: var(--font-body); font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--c-primary-dark); background: rgba(255, 255, 255, 0.82);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  border: 1px solid var(--c-border);
  padding: 0.45rem 0.85rem; border-radius: 999px; box-shadow: var(--shadow-sm);
}
@media (max-width: 720px) { .demo-banner { left: 0.85rem; bottom: 5.6rem; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}