/* =====================================================================
   MELANIA LUQUE — PSICÓLOGA CLÍNICA
   Hoja de estilos principal
   Organización: Variables > Reset > Utilidades > Header > Secciones > Footer > Responsive
   ===================================================================== */

/* =====================================================================
   1. VARIABLES GLOBALES (Design Tokens)
   ===================================================================== */
:root {
  /* --- Colores corporativos (únicos permitidos) --- */
  --color-primary: #661669;
  --color-white: #FFFFFF;
  --color-pink: #FFF0FB;
  --color-black: #000000;

  /* --- Derivados por opacidad/transparencia (mismos colores base) --- */
  --color-primary-05: rgba(102, 22, 105, 0.05);
  --color-primary-10: rgba(102, 22, 105, 0.1);
  --color-primary-20: rgba(102, 22, 105, 0.2);
  --color-primary-40: rgba(102, 22, 105, 0.4);
  --color-primary-70: rgba(102, 22, 105, 0.7);
  --color-black-05: rgba(0, 0, 0, 0.05);
  --color-black-08: rgba(0, 0, 0, 0.08);
  --color-black-40: rgba(0, 0, 0, 0.4);
  --color-black-60: rgba(0, 0, 0, 0.6);
  --color-white-70: rgba(255, 255, 255, 0.7);
  --color-white-85: rgba(255, 255, 255, 0.85);

  /* --- Texto --- */
  --text-heading: rgba(128, 0, 128);
  --text-body: #2b1a2c;      /* negro mezclado visualmente con el morado (misma paleta, más lectura) */
  --text-muted: rgba(43, 26, 44, 0.65);
  --text-on-primary: var(--color-white);

  /* --- Tipografía --- */
  --font-display: 'Playfair Display', serif;
  --font-body: 'Poppins', sans-serif;

  --fs-hero: clamp(2.75rem, 6vw, 5rem);
  --fs-h2: clamp(1.9rem, 3.4vw, 2.75rem);
  --fs-h3: clamp(1.15rem, 1.6vw, 1.4rem);
  --fs-lead: clamp(1.05rem, 1.4vw, 1.2rem);
  --fs-body: 1rem;
  --fs-small: 0.875rem;

  /* --- Espaciados (escala 8pt) --- */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 3.5rem;
  --space-xl: 6rem;
  --space-2xl: 9rem;

  /* --- Layout --- */
  --container-width: 1180px;
  --container-width-narrow: 760px;
  --radius-sm: 8px;
  --radius-md: 18px;
  --radius-lg: 32px;
  --radius-pill: 999px;

  /* --- Sombras (basadas únicamente en negro/morado) --- */
  --shadow-soft: 0 20px 60px -25px var(--color-black-08);
  --shadow-card: 0 25px 50px -20px rgba(102, 22, 105, 0.18);
  --shadow-header: 0 10px 30px -15px var(--color-black-08);

  /* --- Transiciones --- */
  --ease-elegant: cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: 0.25s var(--ease-elegant);
  --transition-medium: 0.5s var(--ease-elegant);
  --transition-slow: 0.9s var(--ease-elegant);

  /* --- Header --- */
  --header-height: 92px;
  --header-height-scrolled: 72px;
}

/* =====================================================================
   2. RESET Y BASE
   ===================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height-scrolled);
}

body {
  font-family: var(--font-body);
  font-weight: 300;
  color: var(--text-body);
  background-color: var(--color-white);
  line-height: 1.7;
  -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-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--text-heading);
  line-height: 1.2;
  font-weight: 500;
}

/* Foco visible para accesibilidad / navegación por teclado */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: 4px;
}

/* Respeta la preferencia de movimiento reducido del usuario */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* =====================================================================
   3. UTILIDADES
   ===================================================================== */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

.container--narrow {
  max-width: var(--container-width-narrow);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-sm) var(--space-md);
  z-index: 999;
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  left: 0;
}

.section__eyebrow {
  font-family: var(--font-body);
  font-size: var(--fs-small);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: var(--space-xs);
}

.section__eyebrow--light {
  color: var(--color-pink);
}

.section__title {
  font-size: var(--fs-h2);
  margin-bottom: var(--space-sm);
}

.section__title--light {
  color: var(--color-white);
}

.section__lead {
  font-size: var(--fs-lead);
  color: var(--text-muted);
  max-width: 620px;
}

.section__lead--notice {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--fs-small);
  color: var(--color-primary-70);
  background: var(--color-pink);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-pill);
  width: fit-content;
  margin-top: var(--space-sm);
}

.section__header {
  text-align: center;
  max-width: 700px;
  margin-inline: auto;
  margin-bottom: var(--space-lg);
}

.section__header .section__lead {
  margin-inline: auto;
}

/* --- Botones --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-body);
  font-size: var(--fs-small);
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 1rem 2rem;
  border-radius: var(--radius-pill);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-card);
}

.btn--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 30px 60px -20px rgba(102, 22, 105, 0.35);
}

/* --- Placeholders de imagen --- */
.placeholder-img {
  width: 100%;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--color-pink) 0%, var(--color-primary-10) 100%);
  border: 1px dashed var(--color-primary-40);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  color: var(--color-primary-70);
  font-size: var(--fs-small);
  letter-spacing: 0.04em;
  text-align: center;
}

.placeholder-img i {
  font-size: 2.2rem;
}

.placeholder-img--hero {
  aspect-ratio: 3 / 4;
}

.placeholder-img--portrait {
  aspect-ratio: 4 / 5;
}

/* --- Animaciones de aparición (Intersection Observer + CSS) --- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal[data-reveal="slide-right"] {
  transform: translateX(-40px);
}

.reveal[data-reveal="slide-left"] {
  transform: translateX(40px);
}

.reveal.is-visible {
  opacity: 1;
  transform: translate(0, 0);
}

/* =====================================================================
   4. HEADER / NAVEGACIÓN
   ===================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  display: flex;
  align-items: center;
  z-index: 500;
  background: transparent;
  transition: background var(--transition-medium), height var(--transition-medium), box-shadow var(--transition-medium);
}

.site-header.is-scrolled {
  height: var(--header-height-scrolled);
  background: var(--color-white-85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-header);
}

.nav {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__brand {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.01em;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav__link {
  position: relative;
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--text-heading);
  padding-bottom: 6px;
  transition: color var(--transition-fast);
}

/* Línea inferior indicando la sección activa */
.nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-fast);
}

.nav__link:hover::after,
.nav__link.is-active::after {
  width: 100%;
}

.nav__link.is-active {
  color: var(--color-primary);
}

.nav__link--cta {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 0.6rem 1.3rem;
  border-radius: var(--radius-pill);
}

.nav__link--cta::after {
  display: none;
}

.nav__link--cta:hover {
  background: #4d1150;
}

/* --- Botón hamburguesa (oculto en escritorio) --- */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 34px;
  height: 34px;
  z-index: 600;
}

.nav__toggle-bar {
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  border-radius: var(--radius-pill);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* =====================================================================
   5. HERO
   ===================================================================== */
.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
  background: var(--color-white);
}

/* Elemento distintivo (halo) — signature element */
.hero__halo {
  position: absolute;
  top: -20%;
  right: -15%;
  width: 35vw;
  height: 35vw;
  max-width: 800px;
  max-height: 800px;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 40%, var(--color-primary-20), var(--color-pink) 60%, transparent 75%);
  filter: blur(10px);
  animation: breathe 10s ease-in-out infinite;
  z-index: 0;
}

@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: 0.9; }
  50% { transform: scale(1.06); opacity: 1; }
}

.hero__container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-md);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-xl);
  align-items: center;
}

.hero__eyebrow {
  font-size: var(--fs-small);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.hero__name {
  font-size: var(--fs-hero);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.hero__subtitle {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--fs-h3);
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.hero__phrase {
  font-size: var(--fs-lead);
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: var(--space-lg);
}

.hero__scroll i {
  transition: transform var(--transition-fast);
}

.hero__scroll:hover i {
  transform: translateY(4px);
}

.hero__media {
  animation: fadeInUp 1.6s var(--ease-elegant) both;
  animation-delay: 0.4s;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* =====================================================================
   6. SOBRE MÍ
   ===================================================================== */
.about {
  padding: var(--space-2xl) 0;
}

.about__grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: var(--space-xl);
  align-items: center;
}

.about__text {
  margin-bottom: var(--space-sm);
  color: var(--text-body);
}

.about__facts {
  margin-top: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.about__fact {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--fs-small);
  color: var(--color-primary);
  font-weight: 500;
}

/* =====================================================================
   7. SERVICIOS
   ===================================================================== */
.services {
  padding: var(--space-2xl) 0;
  background: var(--color-pink);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-md);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card);
}

.card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-primary-10);
  color: var(--color-primary);
  font-size: 1.4rem;
  margin-bottom: var(--space-sm);
}

.card__title {
  font-size: var(--fs-h3);
  margin-bottom: var(--space-xs);
}

.card__text {
  font-size: var(--fs-small);
  color: var(--text-muted);
}

/* =====================================================================
   8. MI ENFOQUE
   ===================================================================== */
.approach {
  padding: var(--space-2xl) 0;
}

.approach__grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-xl);
  align-items: start;
}

.approach__steps {
  margin-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.approach__step {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.approach__step-number {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-primary-40);
  min-width: 42px;
}

.approach__step-title {
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

.approach__step-text {
  font-size: var(--fs-small);
  color: var(--text-muted);
}

.approach__media {
  position: sticky;
  top: 140px;
}

.approach__quote {
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  position: relative;
}

.approach__quote-icon {
  font-size: 1.6rem;
  opacity: 0.5;
  margin-bottom: var(--space-sm);
  display: block;
}

.approach__quote p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.3rem;
  line-height: 1.5;
  margin-bottom: var(--space-md);
}

.approach__quote footer {
  font-size: var(--fs-small);
  opacity: 0.8;
}

/* =====================================================================
   9. BENEFICIOS
   ===================================================================== */
.benefits {
  padding: var(--space-2xl) 0;
  background: var(--color-pink);
}

.benefits__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.benefits__item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--color-white);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: transform var(--transition-fast);
}

.benefits__item:hover {
  transform: translateY(-4px);
}

.benefits__icon {
  color: var(--color-primary);
  font-size: 1.3rem;
  flex-shrink: 0;
}

/* =====================================================================
   10. TESTIMONIOS
   ===================================================================== */
.testimonials {
  padding: var(--space-2xl) 0;
}

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.testimonial {
  background: var(--color-white);
  border: 1px solid var(--color-primary-10);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-md);
  box-shadow: var(--shadow-soft);
}

.testimonial__icon {
  color: var(--color-primary-40);
  font-size: 1.4rem;
  margin-bottom: var(--space-sm);
  display: block;
}

.testimonial__text {
  font-size: var(--fs-body);
  margin-bottom: var(--space-sm);
  color: var(--text-body);
}

.testimonial__author {
  font-size: var(--fs-small);
  color: var(--text-muted);
  font-style: italic;
}

/* =====================================================================
   11. PREGUNTAS FRECUENTES (ACORDEÓN)
   ===================================================================== */
.faq {
  padding: var(--space-2xl) 0;
  background: var(--color-pink);
}

.accordion__item {
  border-bottom: 1px solid var(--color-primary-20);
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-md) 0;
  text-align: left;
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-heading);
  transition: color var(--transition-fast);
}

.accordion__trigger:hover {
  color: var(--color-primary);
}

.accordion__chevron {
  color: var(--color-primary);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.accordion__trigger[aria-expanded="true"] .accordion__chevron {
  transform: rotate(180deg);
}

.accordion__panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-medium);
}

.accordion__content {
  padding-bottom: var(--space-md);
  color: var(--text-muted);
  font-size: var(--fs-small);
  max-width: 620px;
}

/* =====================================================================
   12. CONTACTO
   ===================================================================== */
.contact {
  padding: var(--space-2xl) 0;
  background: var(--color-primary);
  position: relative;
  overflow: hidden;
}

.contact::before {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 50vw;
  height: 50vw;
  max-width: 600px;
  max-height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.06), transparent 70%);
}

.contact__box {
  position: relative;
  z-index: 1;
  text-align: center;
}

.contact__lead {
  color: var(--color-white-70);
  margin-bottom: var(--space-lg);
}

.contact__list {
  display: inline-flex;
  flex-direction: column;
  gap: var(--space-sm);
  align-items: flex-start;
  margin-inline: auto;
}

.contact__item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-white);
  font-size: var(--fs-body);
}

.contact__item i {
  color: var(--color-pink);
  width: 20px;
  text-align: center;
}

.contact__item a:hover {
  text-decoration: underline;
}

/* =====================================================================
   13. FOOTER
   ===================================================================== */
.site-footer {
  background: var(--color-black);
  color: var(--color-white-70);
  padding: var(--space-lg) 0 var(--space-md);
}

.site-footer__grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid rgba(255,255,255,0.12);
  margin-bottom: var(--space-md);
}

.site-footer__name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--color-white);
}

.site-footer__tagline {
  font-size: var(--fs-small);
  color: var(--color-white-70);
}

.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: var(--fs-small);
}

.site-footer__nav a:hover {
  color: var(--color-pink);
}

.site-footer__social {
  display: flex;
  gap: var(--space-sm);
  font-size: 1.2rem;
}

.site-footer__social a:hover {
  color: var(--color-pink);
}

.site-footer__copy {
  font-size: var(--fs-small);
  opacity: 0.6;
  text-align: center;
}

/* =====================================================================
   14. BOTÓN VOLVER ARRIBA
   ===================================================================== */
.back-to-top {
  position: fixed;
  bottom: var(--space-md);
  right: var(--space-md);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-card);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: 400;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
}

/* =====================================================================
   15. RESPONSIVE
   ===================================================================== */

/* --- Tablets (≤1024px) --- */
@media (max-width: 1024px) {
  .services__grid,
  .benefits__grid,
  .testimonials__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero__container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__phrase {
    margin-inline: auto;
  }

  .hero__media {
    max-width: 320px;
    margin-inline: auto;
  }

  .about__grid,
  .approach__grid {
    grid-template-columns: 1fr;
  }

  .approach__media {
    position: static;
  }
}

/* --- Móvil / tablet pequeña (≤820px): menú hamburguesa --- */
@media (max-width: 820px) {
  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: min(80vw, 340px);
    background: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: var(--space-lg);
    padding: var(--space-xl) var(--space-lg);
    transform: translateX(100%);
    transition: transform var(--transition-medium);
    box-shadow: -20px 0 60px -20px var(--color-black-08);
  }

  .nav__menu.is-open {
    transform: translateX(0);
  }

  .nav__link {
    font-size: 1.1rem;
  }
}

/* --- Móvil (≤600px) --- */
@media (max-width: 600px) {
  :root {
    --space-2xl: 5rem;
    --space-xl: 3.5rem;
  }

  .services__grid,
  .benefits__grid,
  .testimonials__grid {
    grid-template-columns: 1fr;
  }

  .contact__list {
    align-items: center;
  }

  .contact__item {
    flex-direction: column;
    gap: 0.35rem;
  }
}