/* ═══════════════════════════════════════════════════════════
   LATENCIA THEME — main.css
   Diseño editorial premium, elegante y minimalista.
   ═══════════════════════════════════════════════════════════ */

/* ─────────────────────────────────────────────
   1. VARIABLES CSS
───────────────────────────────────────────── */
:root {
  /* Colores principales */
  --color-dark:        #1a1f1a;   /* Negro verdoso profundo */
  --color-dark-soft:   #232b23;   /* Verde petróleo oscuro */
  --color-dark-mid:    #2e3830;   /* Verde oscuro medio */
  --color-light:       #f5f3ee;   /* Blanco marfil */
  --color-beige:       #ede9e0;   /* Beige cálido */
  --color-beige-soft:  #f0ece3;   /* Beige suave */
  --color-muted:       #8a8a7a;   /* Gris piedra */
  --color-muted-light: #b5b5a5;   /* Gris piedra claro */
  --color-line:        rgba(255,255,255,0.12); /* Línea en fondos oscuros */
  --color-line-light:  rgba(26,31,26,0.12);    /* Línea en fondos claros */
  --color-accent:      #c8b89a;   /* Dorado suave / acento */
  --color-white:       #ffffff;
  --color-text-dark:   #1a1f1a;
  --color-text-light:  #f5f3ee;

  /* Tipografías */
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans:  'Montserrat', 'Helvetica Neue', Arial, sans-serif;

  /* Espaciados */
  --space-xs:   0.5rem;
  --space-sm:   1rem;
  --space-md:   2rem;
  --space-lg:   4rem;
  --space-xl:   7rem;
  --space-2xl:  10rem;

  /* Máximos de ancho */
  --max-width:       1200px;
  --max-width-text:  680px;

  /* Transiciones */
  --transition-base: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  /* Bordes */
  --border-thin:    1px solid var(--color-line-light);
  --border-thin-dk: 1px solid var(--color-line);
  --radius-sm: 2px;
  --radius-md: 4px;

  /* Header */
  --header-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-weight: 300;
  color: var(--color-text-dark);
  background-color: var(--color-light);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* ─────────────────────────────────────────────
   3. TIPOGRAFÍA GLOBAL
───────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

p {
  font-size: 0.9375rem;
  line-height: 1.75;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2.5rem;
}

/* Secciones generales */
.section-light    { background-color: var(--color-light); }
.section-dark     { background-color: var(--color-dark); }
.section-beige    { background-color: var(--color-beige); }

/* ─────────────────────────────────────────────
   4. HEADER
───────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: var(--color-dark);
  border-bottom: var(--border-thin-dk);
  transition: background-color var(--transition-base),
              box-shadow var(--transition-base),
              backdrop-filter var(--transition-base);
}

.site-header.is-scrolled {
  background-color: rgba(26, 31, 26, 0.97);
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 40px rgba(0,0,0,0.2);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

/* Logo */
.header-logo {
  flex-shrink: 0;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  opacity: 1;
  transition: opacity var(--transition-base);
}

.logo-link:hover {
  opacity: 0.8;
}

.site-logo-img {
  height: 40px;
  width: auto;
}

.logo-text-group {
  display: flex;
  flex-direction: column;
}

.logo-name {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--color-light);
  line-height: 1.1;
}

.logo-text {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--color-light);
}

.logo-descriptor {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-muted-light);
  line-height: 1.3;
}

/* Navegación */
.site-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-list li a {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-muted-light);
  padding: 0.5rem 0.75rem;
  position: relative;
  transition: color var(--transition-base);
}

.nav-list li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0.75rem;
  right: 0.75rem;
  height: 1px;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.nav-list li a:hover {
  color: var(--color-light);
}

.nav-list li a:hover::after {
  transform: scaleX(1);
}

/* Menú hamburguesa */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 4px;
  flex-shrink: 0;
}

.hamburger-line {
  display: block;
  width: 100%;
  height: 1px;
  background-color: var(--color-light);
  transition: transform var(--transition-base),
              opacity var(--transition-base);
  transform-origin: center;
}

.menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ─────────────────────────────────────────────
   5. BOTONES
───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 1rem 2.25rem;
  border: 1px solid transparent;
  transition: background-color var(--transition-base),
              color var(--transition-base),
              border-color var(--transition-base),
              transform var(--transition-base);
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-1px);
}

/* Botón primario (oscuro sobre fondo oscuro — invertido) */
.btn-primary {
  background-color: transparent;
  color: var(--color-light);
  border-color: rgba(245, 243, 238, 0.5);
}

.btn-primary:hover {
  background-color: var(--color-light);
  color: var(--color-dark);
  border-color: var(--color-light);
}

/* Botón outline (oscuro sobre fondo claro) */
.btn-outline {
  background-color: transparent;
  color: var(--color-dark);
  border-color: rgba(26, 31, 26, 0.35);
}

.btn-outline:hover {
  background-color: var(--color-dark);
  color: var(--color-light);
  border-color: var(--color-dark);
}

/* Botón claro (sobre fondo oscuro) */
.btn-light {
  background-color: var(--color-light);
  color: var(--color-dark);
  border-color: var(--color-light);
}

.btn-light:hover {
  background-color: transparent;
  color: var(--color-light);
  border-color: var(--color-light);
}

/* ─────────────────────────────────────────────
   6. ELEMENTOS DE SECCIÓN
───────────────────────────────────────────── */
.section-label {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 1.25rem;
}

.section-label--light {
  color: var(--color-muted-light);
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  color: var(--color-dark);
}

.section-title--light {
  color: var(--color-light);
}

.section-intro {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-muted);
  max-width: var(--max-width-text);
}

.section-intro--light {
  color: var(--color-muted-light);
}

.section-header {
  margin-bottom: var(--space-lg);
}

/* ─────────────────────────────────────────────
   7. SECCIÓN HERO
───────────────────────────────────────────── */
.section-hero {
  position: relative;
  min-height: 100vh;
  background-color: var(--color-dark);
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
}

/* Panel de imagen lateral derecha */
.hero-img-panel {
  position: absolute;
  top: 0;
  right: 0;
  width: 52%;
  height: 100%;
  z-index: 1;
  overflow: hidden;
  background-color: var(--color-dark-soft);
}

/* Indicador de placeholder cuando no hay imagen */
.hero-img-panel .img-placeholder-label {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-sans);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(200, 184, 154, 0.3);
  text-align: center;
  line-height: 2;
  pointer-events: none;
  z-index: 2;
  white-space: nowrap;
}

.hero-img-panel .img-placeholder-label span {
  display: block;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  opacity: 0.4;
}

/* La imagen ocupa todo el panel */
.hero-img-panel img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
  color: transparent; /* Oculta broken-image cuando src está vacío */
}

/* Ocultar label cuando hay imagen */
.hero-img-panel img[src]:not([src=""]) ~ .img-placeholder-label {
  display: none;
}

/* Fade lateral: imagen se funde con el fondo oscuro hacia la izquierda */
.hero-img-panel::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    var(--color-dark) 0%,
    rgba(26, 31, 26, 0.45) 35%,
    rgba(26, 31, 26, 0.1) 70%,
    transparent 100%
  );
  z-index: 3;
  pointer-events: none;
}

/* Fade superior e inferior */
.hero-img-fade-v {
  position: absolute;
  inset: 0;
  z-index: 4;
  background: linear-gradient(
    to bottom,
    var(--color-dark) 0%,
    transparent 12%,
    transparent 88%,
    var(--color-dark) 100%
  );
  pointer-events: none;
}

/* Contenido hero */
.hero-content {
  position: relative;
  z-index: 2;
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
  width: 100%;
}

.hero-text-block {
  max-width: 520px;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.75rem, 6vw, 5rem);
  font-weight: 400;
  line-height: 1.08;
  color: var(--color-light);
  margin-bottom: 2rem;
  letter-spacing: -0.02em;
}

.hero-line {
  width: 48px;
  height: 1px;
  background-color: var(--color-accent);
  margin-bottom: 2rem;
}

.hero-body {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--color-muted-light);
  margin-bottom: 0.75rem;
  max-width: 500px;
}

.hero-sub {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--color-accent);
  margin-bottom: 2.5rem;
}

/* ─────────────────────────────────────────────
   8. SECCIÓN SERVICIOS
───────────────────────────────────────────── */
.section-servicios {
  padding: var(--space-xl) 0;
}

.servicios-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: var(--border-thin);
}

.servicio-card {
  padding: 3rem 2.25rem;
  border-right: var(--border-thin);
  transition: background-color var(--transition-base);
}

.servicio-card:last-child {
  border-right: none;
}

.servicio-card:hover {
  background-color: var(--color-beige);
}

.servicio-icon {
  color: var(--color-muted);
  margin-bottom: 1.75rem;
  transition: color var(--transition-base);
}

.servicio-card:hover .servicio-icon {
  color: var(--color-dark);
}

.servicio-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 400;
  line-height: 1.25;
  color: var(--color-dark);
  margin-bottom: 1rem;
}

.servicio-desc {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-muted);
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: var(--border-thin);
}

.servicio-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.servicio-list li {
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--color-muted);
  line-height: 1.5;
  padding-left: 1rem;
  position: relative;
}

.servicio-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-size: 0.65rem;
}

/* ─────────────────────────────────────────────
   9. SECCIÓN ENFOQUE
───────────────────────────────────────────── */
.section-enfoque {
  padding: var(--space-xl) 0;
}

.enfoque-header {
  max-width: var(--max-width-text);
  margin-bottom: var(--space-lg);
}

.enfoque-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border: var(--border-thin-dk);
}

.enfoque-card {
  padding: 3.5rem 3rem;
  border-right: var(--border-thin-dk);
  border-bottom: var(--border-thin-dk);
  display: flex;
  gap: 1.75rem;
  transition: background-color var(--transition-base);
}

.enfoque-card:nth-child(2n) {
  border-right: none;
}

.enfoque-card:nth-child(n+3) {
  border-bottom: none;
}

.enfoque-card:hover {
  background-color: var(--color-dark-mid);
}

.enfoque-number {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  font-weight: 300;
  color: var(--color-line);
  line-height: 1;
  flex-shrink: 0;
  margin-top: -0.5rem;
}

.enfoque-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--color-light);
  margin-bottom: 0.5rem;
}

.enfoque-subtitle {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.enfoque-desc {
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--color-muted-light);
}

/* ─────────────────────────────────────────────
   10. SECCIÓN MÉTODO
───────────────────────────────────────────── */
.section-metodo {
  padding: var(--space-xl) 0;
}

.metodo-header {
  max-width: var(--max-width-text);
  margin-bottom: var(--space-lg);
}

.metodo-steps {
  max-width: 860px;
}

.metodo-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0 3rem;
  padding: 2.5rem 0;
  border-bottom: var(--border-thin);
  position: relative;
  align-items: center;
}

.metodo-step:last-child {
  border-bottom: none;
}

.step-line {
  position: absolute;
  left: 0;
  top: 0;
  width: 1px;
  height: 100%;
  background-color: var(--color-line-light);
  display: none;
}

.step-number {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 300;
  color: var(--color-line-light);
  line-height: 1;
  width: 80px;
  flex-shrink: 0;
}

.step-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--color-dark);
  margin-bottom: 0.5rem;
}

.step-desc {
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--color-muted);
}

/* ─────────────────────────────────────────────
   11. SECCIÓN SOBRE MÍ
───────────────────────────────────────────── */
.section-sobre-mi {
  padding: var(--space-xl) 0;
}

.sobre-mi-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  min-height: 600px;
}

.sobre-mi-media {
  position: relative;
  overflow: hidden;
}

.profile-image-wrapper {
  height: 100%;
  min-height: 600px;
}

.profile-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: grayscale(15%);
  transition: filter var(--transition-slow), transform var(--transition-slow);
}

.sobre-mi-media:hover .profile-image {
  filter: grayscale(0%);
  transform: scale(1.02);
}

.sobre-mi-content {
  padding: 5rem 5rem 5rem 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.sobre-mi-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-dark);
  margin-bottom: 1.75rem;
}

.sobre-mi-line {
  width: 40px;
  height: 1px;
  background-color: var(--color-accent);
  margin-bottom: 1.75rem;
}

.sobre-mi-text {
  margin-bottom: 2.5rem;
}

.sobre-mi-text p {
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--color-muted);
  margin-bottom: 1rem;
}

.sobre-mi-text p:last-child {
  margin-bottom: 0;
}

.sobre-mi-text strong {
  font-weight: 600;
  color: var(--color-dark);
}

/* ─────────────────────────────────────────────
   12. SECCIÓN EQUIPO
───────────────────────────────────────────── */
.section-equipo {
  padding: var(--space-xl) 0;
}

.equipo-content {
  max-width: var(--max-width-text);
  margin-bottom: var(--space-lg);
}

.equipo-sub {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--color-muted);
  margin-top: 1rem;
}

.equipo-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.equipo-tag {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-dark);
  padding: 0.6rem 1.25rem;
  border: var(--border-thin);
  transition: background-color var(--transition-base),
              color var(--transition-base),
              border-color var(--transition-base);
}

.equipo-tag:hover {
  background-color: var(--color-dark);
  color: var(--color-light);
  border-color: var(--color-dark);
}

/* ─────────────────────────────────────────────
   13. SECCIÓN CLIENTES
───────────────────────────────────────────── */
.section-clientes {
  padding: var(--space-xl) 0;
}

.clientes-header {
  margin-bottom: var(--space-lg);
}

.clientes-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  border: var(--border-thin);
}

.cliente-logo-item {
  padding: 2.5rem 1.5rem;
  border-right: var(--border-thin);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-base);
}

.cliente-logo-item:last-child {
  border-right: none;
}

.cliente-logo-item:hover {
  background-color: var(--color-light);
}

.cliente-logo-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 60px;
  opacity: 0.4;
  transition: opacity var(--transition-base);
}

.cliente-logo-item:hover .cliente-logo-placeholder {
  opacity: 0.7;
}

.cliente-logo-placeholder span {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-dark);
  font-weight: 500;
}

/* ─────────────────────────────────────────────
   14. SECCIÓN CONTACTO
───────────────────────────────────────────── */
.section-contacto {
  padding: var(--space-xl) 0;
}

.contacto-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-lg);
}

.contacto-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 400;
  color: var(--color-light);
  margin-bottom: 1.5rem;
  line-height: 1.15;
}

.contacto-line {
  width: 40px;
  height: 1px;
  background-color: var(--color-accent);
  margin: 0 auto 1.5rem;
}

.contacto-desc {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--color-muted-light);
  margin-bottom: 2.5rem;
}

/* Íconos de redes sociales */
.contacto-redes {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: var(--space-md);
}

.red-social-link {
  color: var(--color-muted-light);
  transition: color var(--transition-base), transform var(--transition-base);
  padding: 0.5rem;
}

.red-social-link:hover {
  color: var(--color-light);
  transform: translateY(-2px);
}

/* ─────────────────────────────────────────────
   15. FOOTER
───────────────────────────────────────────── */
.site-footer {
  background-color: var(--color-dark);
  border-top: var(--border-thin-dk);
  padding: 3.5rem 0;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2.5rem;
  text-align: center;
}

.footer-logo-name {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  color: var(--color-light);
  margin-bottom: 0.5rem;
}

.footer-descriptor {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-muted-light);
  margin-bottom: 0.75rem;
}

.footer-tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--color-muted);
  margin-bottom: 2rem;
}

.footer-line {
  width: 60px;
  height: 1px;
  background-color: var(--color-line);
  margin: 0 auto 2rem;
}

.footer-copy {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--color-muted);
}

/* ─────────────────────────────────────────────
   16. WHATSAPP FLOTANTE
───────────────────────────────────────────── */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  width: 54px;
  height: 54px;
  background-color: #25d366;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.35);
  transition: transform var(--transition-base),
              box-shadow var(--transition-base);
}

.whatsapp-float:hover {
  transform: scale(1.1) translateY(-2px);
  box-shadow: 0 8px 28px rgba(37, 211, 102, 0.45);
}

/* ─────────────────────────────────────────────
   17. ANIMACIONES — IntersectionObserver
───────────────────────────────────────────── */
[data-animate] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Delay en cascada para grillas */
.servicios-grid .servicio-card:nth-child(1) { transition-delay: 0s; }
.servicios-grid .servicio-card:nth-child(2) { transition-delay: 0.08s; }
.servicios-grid .servicio-card:nth-child(3) { transition-delay: 0.16s; }
.servicios-grid .servicio-card:nth-child(4) { transition-delay: 0.24s; }

.enfoque-grid .enfoque-card:nth-child(1) { transition-delay: 0s; }
.enfoque-grid .enfoque-card:nth-child(2) { transition-delay: 0.08s; }
.enfoque-grid .enfoque-card:nth-child(3) { transition-delay: 0.16s; }
.enfoque-grid .enfoque-card:nth-child(4) { transition-delay: 0.24s; }

.metodo-steps .metodo-step:nth-child(1) { transition-delay: 0s; }
.metodo-steps .metodo-step:nth-child(2) { transition-delay: 0.07s; }
.metodo-steps .metodo-step:nth-child(3) { transition-delay: 0.14s; }
.metodo-steps .metodo-step:nth-child(4) { transition-delay: 0.21s; }
.metodo-steps .metodo-step:nth-child(5) { transition-delay: 0.28s; }

/* ─────────────────────────────────────────────
   18. RESPONSIVE — TABLET (max 1024px)
───────────────────────────────────────────── */
@media (max-width: 1024px) {

  :root {
    --header-height: 72px;
  }

  .container {
    padding: 0 2rem;
  }

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

  .servicio-card:nth-child(2) {
    border-right: none;
  }

  .servicio-card:nth-child(1),
  .servicio-card:nth-child(2) {
    border-bottom: var(--border-thin);
  }

  .servicio-card:nth-child(3) {
    border-right: var(--border-thin);
  }

  .enfoque-grid {
    grid-template-columns: 1fr;
  }

  .enfoque-card {
    border-right: none;
    border-bottom: var(--border-thin-dk);
  }

  .enfoque-card:last-child {
    border-bottom: none;
  }

  .sobre-mi-content {
    padding: 3.5rem 3rem;
  }

  .clientes-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .cliente-logo-item:nth-child(3n) {
    border-right: none;
  }

  .cliente-logo-item:nth-child(-n+3) {
    border-bottom: var(--border-thin);
  }

}

/* ─────────────────────────────────────────────
   19. RESPONSIVE — MOBILE (max 768px)
───────────────────────────────────────────── */
@media (max-width: 768px) {

  :root {
    --header-height: 64px;
    --space-xl: 4.5rem;
    --space-lg: 2.5rem;
  }

  .container {
    padding: 0 1.25rem;
  }

  /* ── Header mobile ── */
  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-dark);
    border-bottom: var(--border-thin-dk);
    padding: 1.5rem 1.25rem 2rem;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-base), opacity var(--transition-base);
    z-index: 999;
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }

  .nav-list li {
    width: 100%;
    border-bottom: var(--border-thin-dk);
  }

  .nav-list li:last-child {
    border-bottom: none;
  }

  .nav-list li a {
    display: block;
    padding: 1rem 0;
    font-size: 0.75rem;
    letter-spacing: 0.18em;
  }

  .nav-list li a::after {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  /* ── Hero mobile ── */
  .hero-img-panel {
    width: 100%;
    opacity: 0.18;
  }

  .hero-img-panel::after {
    background: linear-gradient(to bottom, var(--color-dark) 0%, rgba(26,31,26,0.5) 50%, var(--color-dark) 100%);
  }

  .hero-title {
    font-size: clamp(2.25rem, 9vw, 3.5rem);
  }

  .hero-bg-image {
    object-position: 70% center;
    opacity: 0.2;
  }

  /* ── Servicios mobile ── */
  .servicios-grid {
    grid-template-columns: 1fr;
    border: none;
  }

  .servicio-card {
    border-right: none;
    border-bottom: var(--border-thin);
    padding: 2.5rem 0;
  }

  .servicio-card:last-child {
    border-bottom: none;
  }

  /* ── Enfoque mobile ── */
  .enfoque-card {
    padding: 2.5rem 1.5rem;
    flex-direction: column;
    gap: 1rem;
  }

  .enfoque-number {
    font-size: 2.5rem;
    width: auto;
  }

  /* ── Método mobile ── */
  .metodo-step {
    grid-template-columns: 56px 1fr;
    gap: 0 1.5rem;
  }

  .step-number {
    font-size: 2rem;
    width: 56px;
  }

  /* ── Sobre mí mobile ── */
  .sobre-mi-grid {
    grid-template-columns: 1fr;
  }

  .profile-image-wrapper {
    min-height: 400px;
  }

  .sobre-mi-content {
    padding: 3rem 1.5rem;
  }

  /* ── Clientes mobile ── */
  .clientes-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cliente-logo-item:nth-child(2n) {
    border-right: none;
  }

  .cliente-logo-item {
    border-bottom: var(--border-thin);
  }

  /* ── Contacto mobile ── */
  .contacto-title {
    font-size: clamp(1.75rem, 7vw, 2.5rem);
  }

  /* ── WhatsApp button ── */
  .whatsapp-float {
    bottom: 1.25rem;
    right: 1.25rem;
    width: 48px;
    height: 48px;
  }

}

/* ─────────────────────────────────────────────
   20. MOBILE PEQUEÑO (max 480px)
───────────────────────────────────────────── */
@media (max-width: 480px) {

  .logo-descriptor {
    display: none;
  }

  .hero-title {
    font-size: 2.25rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .servicios-grid {
    border: none;
  }

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

  .equipo-tags {
    gap: 0.5rem;
  }

  .equipo-tag {
    font-size: 0.65rem;
    padding: 0.5rem 1rem;
  }

}

/* ─────────────────────────────────────────────
   21. ACCESIBILIDAD
───────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  [data-animate] {
    opacity: 1;
    transform: none;
  }

  html {
    scroll-behavior: auto;
  }
}

/* ─────────────────────────────────────────────
   22. UTILIDADES
───────────────────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center { text-align: center; }
.mt-lg { margin-top: var(--space-lg); }
.mb-lg { margin-bottom: var(--space-lg); }