/* ============================================================
   BIOSMILE WHITENING STUDIO — STYLE.CSS
   ============================================================
   Índice:
   1. Tokens (variables editables)
   2. Reset base
   3. Tipografía
   4. Utilidades / layout
   5. Botones
   6. Header
   7. Hero
   8. Barra de confianza
   9. Diferencial
   10. Protocolos
   11. Sensitive
   12. Cómo funciona
   13. Profilaxis
   14. Resultados / antes-después / lightbox
   15. Espacio / Fundadora
   16. FAQ
   17. CTA final / Reserva
   18. WhatsApp flotante
   19. Footer
   20. Animaciones / reveal
   21. Media queries
   ============================================================ */

/* ---------- 1. TOKENS ---------- */
:root {
  /* Paleta — Cosmic Pulse (violetas/púrpuras). Ver README para cambiar. */
  --color-white: #FFFFFF;
  --color-ivory: #F8F3FD;              /* lila casi blanco — fondos suaves */
  --color-beige: #EBDCFB;              /* lila claro — degradados/placeholders */
  --color-warm-grey: #857A99;          /* gris-violeta — texto secundario */
  --color-ink: #0B0A1F;                /* índigo casi negro — texto y fondos oscuros */
  --color-ink-deep: #2F1B5B;           /* púrpura profundo — segundo tono oscuro / gradientes */
  --color-gold: #6A3CE8;               /* violeta vibrante — acento principal (CTA, precios) */
  --color-orchid: #B86BFF;             /* orquídea — acento secundario / gradientes */
  --color-pink-glow: #FFB3F1;          /* rosa lila — brillo puntual, nunca como fondo grande */
  --color-gold-soft: rgba(106, 60, 232, 0.14);
  --gradient-cosmic: linear-gradient(135deg, var(--color-ink) 0%, var(--color-ink-deep) 45%, var(--color-gold) 100%);
  --gradient-cosmic-soft: radial-gradient(circle at 30% 20%, rgba(184, 107, 255, 0.35), transparent 60%),
                          radial-gradient(circle at 80% 80%, rgba(255, 179, 241, 0.25), transparent 55%);

  /* Tipografía */
  --font-serif: "Fraunces", Georgia, serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Escala tipográfica */
  --fs-hero: clamp(2.4rem, 6vw, 4.4rem);
  --fs-h2: clamp(1.9rem, 4vw, 2.9rem);
  --fs-h3: clamp(1.3rem, 2.4vw, 1.6rem);
  --fs-body: 1rem;
  --fs-small: 0.875rem;

  /* Espaciado */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.75rem;
  --space-lg: 3rem;
  --space-xl: 5.5rem;

  /* Layout */
  --content-max: 1180px;
  --radius: 6px;
  --border-hairline: 1px solid rgba(11, 10, 31, 0.12);

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --duration: 0.5s;
}

/* ---------- 2. RESET BASE ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--color-white);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; margin: 0; padding: 0; }
button { font: inherit; background: none; border: none; cursor: pointer; color: inherit; }
input { font: inherit; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-ink);
  color: var(--color-white);
  padding: 0.75rem 1.25rem;
  z-index: 1000;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

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

/* ---------- 3. TIPOGRAFÍA ---------- */
h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 500;
  line-height: 1.12;
  margin: 0;
  color: var(--color-ink);
}
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
p { margin: 0 0 1em; max-width: 62ch; }
p:last-child { margin-bottom: 0; }

/* ---------- 4. UTILIDADES / LAYOUT ---------- */
.section-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-xl) 1.5rem;
}
.section-title {
  margin-bottom: var(--space-lg);
  max-width: 20ch;
}

/* ---------- 5. BOTONES ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.75rem;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: transform var(--duration) var(--ease), background var(--duration) var(--ease), border-color var(--duration) var(--ease);
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-cosmic);
  background-size: 200% 200%;
  background-position: 0% 50%;
  color: var(--color-white);
  transition: background-position var(--duration) var(--ease), box-shadow var(--duration) var(--ease), transform var(--duration) var(--ease);
}
.btn-primary:hover {
  background-position: 100% 50%;
  box-shadow: 0 8px 24px rgba(106, 60, 232, 0.35);
}
.btn-outline {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-ink);
}
.btn-outline:hover {
  background: var(--color-ink);
  color: var(--color-white);
}
.btn-ghost {
  background: transparent;
  color: var(--color-ink);
  border-color: transparent;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.btn-whatsapp {
  background: var(--color-ivory);
  color: var(--color-ink);
  border-color: var(--color-beige);
}
.btn-whatsapp:hover {
  background: var(--color-beige);
}
.btn-large { padding: 1.1rem 2.25rem; font-size: 1rem; }
.btn-header { display: none; }

/* ---------- 6. HEADER ---------- */

/* Barra superior de contacto */
.topbar {
  background: var(--color-ink);
  color: rgba(255, 255, 255, 0.85);
}
.topbar-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0.5rem 1.5rem;
  display: flex;
  gap: 1.25rem;
  font-size: 0.76rem;
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: none;
}
.topbar-inner::-webkit-scrollbar { display: none; }
.topbar-inner a:hover { color: var(--color-gold); }
.topbar-address { color: rgba(255, 255, 255, 0.55); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: var(--border-hairline);
}

/* Franja de promoción */
.promo-bar {
  background: var(--color-gold-soft);
  border-bottom: var(--border-hairline);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 0.55rem 1.5rem;
  text-align: center;
  flex-wrap: wrap;
}
.promo-bar p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--color-ink);
}
.promo-bar strong { color: var(--color-gold); font-family: var(--font-serif); }
.btn-sm { padding: 0.5rem 1.1rem; font-size: 0.8rem; }
.header-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.logo-mark {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  letter-spacing: 0.04em;
}
.logo-sub {
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  color: var(--color-warm-grey);
}
.main-nav { display: none; }
.main-nav > ul {
  display: flex;
  gap: 1.75rem;
}
.main-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  position: relative;
  padding-bottom: 4px;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--color-gold);
  transition: width var(--duration) var(--ease);
}
.main-nav a:hover::after { width: 100%; }

/* Submenú Protocolos */
.has-dropdown { position: relative; }
.dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 260px;
  background: var(--color-white);
  border: var(--border-hairline);
  border-radius: var(--radius);
  padding: 0.5rem;
  margin-top: 0.75rem;
  box-shadow: 0 12px 28px rgba(11, 10, 31, 0.12);
}
.dropdown li a {
  display: block;
  padding: 0.65rem 0.75rem;
  font-size: 0.88rem;
  border-radius: 4px;
}
.dropdown li a:hover { background: var(--color-ivory); }
.dropdown li a::after { display: none; }
.has-dropdown:hover .dropdown,
.has-dropdown.is-open .dropdown { display: block; }

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
}
.nav-toggle span {
  width: 22px;
  height: 1.5px;
  background: var(--color-ink);
  transition: transform var(--duration) var(--ease), opacity var(--duration) var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.main-nav.is-open {
  display: block;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-white);
  border-bottom: var(--border-hairline);
  padding: 1.5rem;
}
.main-nav.is-open > ul {
  flex-direction: column;
  gap: 1.25rem;
}
.main-nav.is-open a { font-size: 1.05rem; }

/* ---------- 7. HERO ---------- */
.hero {
  background: var(--color-ivory);
}
.hero-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-lg) 1.5rem var(--space-xl);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  align-items: center;
}
.hero-eyebrow {
  font-size: 0.85rem;
  color: var(--color-warm-grey);
  margin-bottom: var(--space-sm);
}
.hero-title {
  font-size: var(--fs-hero);
  max-width: 14ch;
  margin-bottom: var(--space-md);
}
.hero-subtitle {
  font-size: 1.08rem;
  color: var(--color-ink);
  opacity: 0.85;
  max-width: 46ch;
  margin-bottom: var(--space-md);
}
.hero-price-card {
  display: inline-flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 1.1rem 1.5rem;
  background: var(--color-white);
  border: var(--border-hairline);
  border-radius: var(--radius);
  margin-bottom: var(--space-md);
}
.hero-price-label {
  font-family: var(--font-serif);
  font-size: 1.15rem;
}
.hero-price-desc {
  font-size: 0.85rem;
  color: var(--color-warm-grey);
}
.hero-price-amount {
  font-family: var(--font-serif);
  font-size: 1.7rem;
  color: var(--color-gold);
  margin-top: 0.25rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero-media { position: relative; }
.hero-image {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--radius);
  border: var(--border-hairline);
  display: block;
}
.hero-media-accent {
  position: absolute;
  width: 70%;
  aspect-ratio: 1;
  background: var(--gradient-cosmic-soft);
  filter: blur(2px);
  border-radius: var(--radius);
  bottom: -1.5rem;
  right: -1.5rem;
  z-index: -1;
  display: none;
}

/* ---------- 8. BARRA DE CONFIANZA ---------- */
.trust-bar {
  border-bottom: var(--border-hairline);
}
.trust-bar-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 1.75rem 1.5rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem 1.5rem;
  text-align: center;
}
.trust-bar-inner p {
  margin: 0;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  color: var(--color-warm-grey);
}

/* ---------- 9. DIFERENCIAL ---------- */
.differential-inner {
  display: grid;
  gap: var(--space-lg);
}
.differential-text h2 { margin-bottom: var(--space-md); max-width: 16ch; }
.differential-duration {
  color: var(--color-warm-grey);
  font-size: 0.92rem;
}
.differential-flow {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
}
.flow-step {
  padding: 0.9rem 1.4rem;
  background: var(--color-ivory);
  border-radius: var(--radius);
  border: var(--border-hairline);
}
.flow-step--accent {
  background: var(--color-ink);
  border-color: var(--color-ink);
}
.flow-step--accent .flow-word { color: var(--color-white); }
.flow-word {
  font-family: var(--font-serif);
  font-size: 1.15rem;
}
.flow-arrow {
  color: var(--color-gold);
  padding-left: 1.6rem;
  font-size: 1.1rem;
}

/* ---------- 10. PROTOCOLOS ---------- */
.protocols { background: var(--color-white); }
.protocols-heading { margin-bottom: var(--space-lg); }
.protocols-heading .section-title { margin-bottom: 0.5rem; }
.protocols-lead { color: var(--color-warm-grey); max-width: 48ch; }

.protocol-row {
  display: flex;
  gap: 1.25rem;
  overflow-x: auto;
  padding-bottom: 1rem;
  scroll-snap-type: x mandatory;
  margin: 0 -1.5rem;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  scrollbar-width: thin;
}
.protocol-card {
  scroll-snap-align: start;
  flex: 0 0 78%;
  border: var(--border-hairline);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  position: relative;
  background: var(--color-white);
}
.protocol-card-media {
  aspect-ratio: 4/3;
  background: var(--color-ivory);
  border-radius: var(--radius) var(--radius) 0 0;
  overflow: hidden;
}
.protocol-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.protocol-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}
.protocol-card--featured {
  background: var(--gradient-cosmic);
  border-color: var(--color-ink);
  flex-basis: 82%;
}
.protocol-card--featured h3,
.protocol-card--featured .protocol-price { color: var(--color-white); }
.protocol-card--featured .protocol-tagline,
.protocol-card--featured .protocol-price-compare,
.protocol-card--featured .protocol-desc,
.protocol-card--featured .protocol-duration { color: rgba(255,255,255,0.78); }
.protocol-card--featured .btn-primary {
  background: var(--color-gold);
  color: var(--color-ink);
}
.protocol-card--featured .btn-primary:hover { background: var(--color-white); }

.protocol-badge {
  position: absolute;
  top: 0.85rem;
  left: 0.85rem;
  z-index: 2;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--color-ink);
  background: var(--color-gold);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
}
.protocol-tagline { color: var(--color-warm-grey); font-size: 0.88rem; }
.protocol-price {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--color-ink);
}
.protocol-price-compare {
  text-decoration: line-through;
  color: var(--color-warm-grey);
  font-size: 0.82rem;
  margin-bottom: -0.3rem;
}
.protocol-savings {
  display: inline-block;
  font-size: 0.76rem;
  color: #A233D6;
  font-weight: 600;
}
.protocol-card--featured .protocol-savings { color: var(--color-pink-glow); }
.protocol-desc { font-size: 0.9rem; }
.protocol-duration, .protocol-note {
  font-size: 0.82rem;
  color: var(--color-warm-grey);
}
.protocol-card .btn { margin-top: auto; align-self: flex-start; }

/* ---------- 10b. POR QUÉ BIOSMILE ---------- */
.why-us { background: var(--color-ivory); }
.why-us-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
.why-us-col {
  background: var(--color-white);
  border: var(--border-hairline);
  border-radius: var(--radius);
  padding: 1.75rem;
}
.why-us-col--biosmile { border-color: var(--color-gold); }
.why-us-col-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  margin-bottom: 1rem;
}
.why-us-col--biosmile .why-us-col-title { color: var(--color-gold); }
.why-us-col ul { display: flex; flex-direction: column; gap: 0.75rem; }
.why-us-col li {
  font-size: 0.9rem;
  padding-left: 1.4rem;
  position: relative;
}
.why-us-col--biosmile li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-gold);
}
.why-us-list--muted { color: var(--color-warm-grey); }
.why-us-list--muted li::before {
  content: "–";
  position: absolute;
  left: 0;
  color: var(--color-warm-grey);
}

/* ---------- 11. SENSITIVE ---------- */
.sensitive { background: var(--color-ivory); }
.sensitive-intro h2 { max-width: 14ch; margin-bottom: 0.5rem; }
.sensitive-subtitle {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--color-gold);
  margin-bottom: var(--space-md);
}
.sensitive-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: var(--space-lg);
}
.sensitive-card {
  background: var(--color-white);
  border: var(--border-hairline);
  border-radius: var(--radius);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  height: 100%;
}
.sensitive-card .btn {
  margin-top: auto;
  align-self: flex-start;
}
.sensitive-breakdown { font-size: 0.85rem; color: var(--color-warm-grey); }
.sensitive-disclaimer {
  margin-top: var(--space-lg);
  font-size: 0.85rem;
  color: var(--color-warm-grey);
  max-width: 60ch;
}

/* ---------- 12. CÓMO FUNCIONA ---------- */
.steps-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
.step-item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}
.step-number {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--color-gold);
  min-width: 2.5ch;
}
.step-item h3 { margin-bottom: 0.4rem; }
.step-item p { color: var(--color-warm-grey); font-size: 0.95rem; }
.how-duration {
  margin-top: var(--space-lg);
  font-size: 0.9rem;
  color: var(--color-warm-grey);
}

/* ---------- 13. PROFILAXIS ---------- */
.prophylaxis { background: var(--gradient-cosmic); color: var(--color-white); }
.prophylaxis h2 { color: var(--color-white); max-width: 16ch; margin-bottom: var(--space-md); }
.prophylaxis p { color: rgba(255,255,255,0.75); }
.prophylaxis-inner {
  display: grid;
  gap: var(--space-lg);
}
.prophylaxis-pillars {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.prophylaxis-pillars span {
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius);
  padding: 1.25rem 1rem;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  text-align: center;
}

/* ---------- 14. RESULTADOS ---------- */
.results-hero { margin-bottom: var(--space-lg); }
.results-hero-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: var(--border-hairline);
  display: block;
}
.results-scroll {
  display: flex;
  gap: 1.5rem;
  overflow-x: auto;
  padding-bottom: 1rem;
  scroll-snap-type: x mandatory;
  margin: 0 -1.5rem var(--space-md);
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}
.results-pair {
  flex: 0 0 auto;
  display: flex;
  gap: 0.5rem;
  scroll-snap-align: start;
}
.gallery-item {
  position: relative;
  width: 190px;
  aspect-ratio: 4/3;
  background: var(--color-ivory);
  border: var(--border-hairline);
  border-radius: var(--radius);
  overflow: hidden;
  padding: 0;
  transition: transform var(--duration) var(--ease);
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.gallery-tag {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  background: rgba(11, 10, 31, 0.72);
  color: var(--color-white);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
}
.gallery-item em { font-style: normal; opacity: 0.75; }
.gallery-item:hover { transform: scale(1.02); }
.results-note { color: var(--color-warm-grey); font-size: 0.9rem; }

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(11, 10, 31, 0.94);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 2rem;
}
.lightbox.is-open { display: flex; }
.lightbox-content {
  max-width: 600px;
  width: 100%;
  aspect-ratio: 4/3;
  background: var(--color-ivory);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-warm-grey);
}
.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  color: var(--color-white);
  font-size: 1.3rem;
  padding: 0.5rem;
}

/* ---------- 15. ESPACIO / FUNDADORA ---------- */
.studio-space { background: var(--color-ivory); }
.studio-space-inner, .founder-inner {
  display: grid;
  gap: var(--space-lg);
  align-items: center;
}
.image-placeholder {
  background: linear-gradient(160deg, var(--color-beige), var(--color-ivory));
  border: var(--border-hairline);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  color: var(--color-warm-grey);
  font-size: 0.85rem;
}
.image-placeholder em { display: block; font-style: normal; font-size: 0.72rem; margin-top: 0.35rem; }
.image-placeholder--wide { aspect-ratio: 16/10; }
.image-placeholder--portrait { aspect-ratio: 3/4; }

.founder-photo {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  object-position: center 30%;
  border-radius: var(--radius);
  border: var(--border-hairline);
  display: block;
}

.image-placeholder--wordmark {
  background: var(--gradient-cosmic);
  border-color: var(--color-ink);
}
.wordmark-logo {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  color: var(--color-white);
  letter-spacing: 0.03em;
  line-height: 1.4;
}
.wordmark-logo em {
  display: block;
  font-style: normal;
  font-size: 0.42em;
  letter-spacing: 0.28em;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 0.3rem;
}

.founder-text h2 { margin-bottom: var(--space-md); max-width: 16ch; }
.founder-name { font-family: var(--font-serif); font-size: 1.3rem; margin-bottom: 0.2rem; }
.founder-title { color: var(--color-warm-grey); font-size: 0.9rem; margin-bottom: var(--space-sm); }
.founder-bio { color: var(--color-warm-grey); font-style: italic; }

/* ---------- 16. FAQ ---------- */
.faq-list { border-top: var(--border-hairline); }
.faq-item { border-bottom: var(--border-hairline); }
.faq-question {
  width: 100%;
  text-align: left;
  padding: 1.4rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  gap: 1rem;
}
.faq-question::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--color-gold);
  transition: transform var(--duration) var(--ease);
  flex-shrink: 0;
}
.faq-question[aria-expanded="true"]::after { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration) var(--ease);
}
.faq-answer p {
  padding-bottom: 1.4rem;
  color: var(--color-warm-grey);
  font-size: 0.95rem;
  max-width: 68ch;
}

/* ---------- 17. CTA FINAL / RESERVA ---------- */
.final-cta { background: var(--gradient-cosmic); color: var(--color-white); }
.final-cta-inner { text-align: left; }
.final-cta h2 { color: var(--color-white); max-width: 16ch; margin-bottom: 0.5rem; }
.final-cta p { color: rgba(255,255,255,0.75); margin-bottom: var(--space-md); }
.final-cta-price {
  display: inline-flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 1.1rem 1.5rem;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius);
  margin-bottom: var(--space-md);
}
.final-cta-price .hero-price-label { color: var(--color-white); }
.final-cta-price .hero-price-desc { color: rgba(255,255,255,0.6); }
.final-cta-actions { display: flex; flex-wrap: wrap; gap: 1rem; }
.final-cta .btn-primary { background: var(--color-gold); color: var(--color-ink); }
.final-cta .btn-primary:hover { background: var(--color-white); }

.booking { background: var(--color-ivory); }
.booking-inner { text-align: center; max-width: 760px; }
.booking h2 { margin-bottom: var(--space-sm); }
.booking p { margin: 0 auto var(--space-md); }
.calendly-inline-widget {
  margin: 0 auto var(--space-md);
  border-radius: var(--radius);
  overflow: hidden;
  border: var(--border-hairline);
  background: var(--color-white);
}
.booking-fallback { font-size: 0.85rem; color: var(--color-warm-grey); margin-bottom: var(--space-sm); }
.booking-fallback a { text-decoration: underline; text-underline-offset: 3px; }
.booking-alt { margin-top: var(--space-md); font-size: 0.9rem; color: var(--color-warm-grey); }
.booking-alt a { text-decoration: underline; text-underline-offset: 3px; }

/* ---------- 17b. INSTAGRAM ---------- */
.instagram-strip { background: var(--color-white); border-top: var(--border-hairline); }
.instagram-inner { text-align: center; }
.instagram-handle {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  margin-bottom: var(--space-md);
}
.instagram-handle:hover { color: var(--color-gold); }
.instagram-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.6rem;
}
.instagram-item {
  aspect-ratio: 1;
  background: var(--color-ivory);
  border: var(--border-hairline);
  border-radius: var(--radius);
  overflow: hidden;
}
.instagram-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.instagram-item--desktop-only { display: none; }

/* ---------- 18. WHATSAPP FLOTANTE ---------- */
.whatsapp-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 56px;
  height: 56px;
  background: #25D366;
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  z-index: 600;
  transition: transform var(--duration) var(--ease);
}
.whatsapp-float:hover { transform: scale(1.06); }

/* ---------- 19. FOOTER ---------- */
.site-footer { background: var(--color-white); border-top: var(--border-hairline); }
.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-bottom: var(--space-lg);
}
.footer-brand .logo-mark { font-family: var(--font-serif); font-size: 1.25rem; display: block; }
.footer-brand .logo-sub { font-size: 0.6rem; letter-spacing: 0.18em; color: var(--color-warm-grey); display: block; margin-bottom: 0.5rem; }
.footer-brand p { color: var(--color-warm-grey); font-size: 0.9rem; }
.footer-nav { display: flex; flex-direction: column; gap: 0.75rem; }
.footer-nav a { font-size: 0.92rem; }
.footer-nav a:hover { color: var(--color-gold); }
.footer-info p { font-size: 0.85rem; color: var(--color-warm-grey); margin-bottom: 0.5rem; }
.footer-bottom {
  border-top: var(--border-hairline);
  padding: 1.25rem 1.5rem;
  text-align: center;
  font-size: 0.78rem;
  color: var(--color-warm-grey);
}

/* ---------- 20. ANIMACIONES / REVEAL ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ---------- 21. MEDIA QUERIES ---------- */
@media (min-width: 640px) {
  .trust-bar-inner { grid-template-columns: repeat(4, 1fr); }
  .sensitive-grid { grid-template-columns: 1fr 1fr; }
  .protocol-card { flex-basis: 46%; }
  .protocol-card--featured { flex-basis: 50%; }
}

@media (min-width: 880px) {
  .btn-header { display: inline-flex; }
  .main-nav { display: block; }
  .main-nav > ul { display: flex; }
  .nav-toggle { display: none; }
  .main-nav.is-open { position: static; border: none; padding: 0; background: none; }

  .hero-inner { grid-template-columns: 1.05fr 0.95fr; }
  .hero-media-accent { display: block; }

  .differential-inner { grid-template-columns: 1fr 1fr; }
  .differential-flow { align-items: center; }

  .protocol-grid { grid-template-columns: repeat(3, 1fr); }
  .protocol-card--featured { order: 0; transform: translateY(-0.75rem); }

  .steps-list { grid-template-columns: repeat(2, 1fr); }

  .prophylaxis-inner { grid-template-columns: 1fr 1fr; align-items: center; }
  .prophylaxis-pillars { grid-template-columns: repeat(4, 1fr); }

  .studio-space-inner { grid-template-columns: 1fr 1fr; }
  .founder-inner { grid-template-columns: 0.8fr 1fr; }

  .footer-inner { grid-template-columns: 1.2fr 1fr 1fr; }

  .why-us-grid { grid-template-columns: 1fr 1fr; }
  .instagram-grid { grid-template-columns: repeat(6, 1fr); }
  .instagram-item--desktop-only { display: flex; }

  .protocol-card { flex-basis: 30%; }
  .protocol-card--featured { flex-basis: 32%; }
}

@media (min-width: 1100px) {
  .hero-title { font-size: 4.6rem; }
}

/* Enlace "Ver detalle" en las tarjetas de protocolos (lleva a la página propia de cada producto) */
.protocol-link {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.85rem;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.protocol-card--featured .protocol-link { color: #fff; }

/* Páginas de producto: evitar desbordes en móvil con nombres largos */
.hero-copy, .hero-media { min-width: 0; }
.hero-actions .btn { white-space: normal; text-align: center; max-width: 100%; }

/* Páginas /reservar/ y /gracias/ */
.booking-inner .section-title { max-width: none; text-align: center; }