/* ==========================================================
   Las Espartanas — Limpieza profesional
   Hoja de estilos principal
   ========================================================== */

/* ----------------------------------------------------------
   1. Variables
   ---------------------------------------------------------- */
:root {
  /* Paleta */
  --color-primary: #0d9488;
  --color-primary-dark: #0f766e;
  --color-primary-light: #ccfbf1;
  --color-secondary: #f59e0b;
  --color-secondary-dark: #d97706;

  --color-bg: #ffffff;
  --color-surface: #f8fafc;
  --color-surface-alt: #f1f5f9;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-text-light: #94a3b8;
  --color-border: #e2e8f0;

  /* Tipografía */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Manrope', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;

  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.25rem;
  --fs-2xl: 1.5rem;
  --fs-3xl: 2rem;
  --fs-4xl: 2.5rem;
  --fs-5xl: 3rem;
  --fs-6xl: 3.75rem;

  --lh-tight: 1.2;
  --lh-normal: 1.6;
  --lh-relaxed: 1.75;

  /* Espaciado */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 760px;
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;

  /* Sombras */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Transiciones */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

/* ----------------------------------------------------------
   2. Reset y base
   ---------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
picture,
svg,
video {
  display: block;
  max-width: 100%;
  height: auto;
}

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

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

ul,
ol {
  list-style: none;
}

input,
textarea,
select {
  font: inherit;
  color: inherit;
}

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

::selection {
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
}

/* Texto pequeño para accesibilidad pero visible solo a screen readers */
.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;
}

/* ----------------------------------------------------------
   3. Tipografía
   ---------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--lh-tight);
  color: var(--color-text);
}

h1 { font-size: var(--fs-5xl); }
h2 { font-size: var(--fs-4xl); }
h3 { font-size: var(--fs-2xl); }
h4 { font-size: var(--fs-xl); }

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-muted);
}

p:last-child {
  margin-bottom: 0;
}

.section__eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.section__title {
  margin-bottom: var(--space-4);
}

.section__intro {
  max-width: 60ch;
  margin-inline: auto;
  font-size: var(--fs-lg);
  color: var(--color-text-muted);
}

.page-header__intro {
  margin-inline: auto;
}

/* ----------------------------------------------------------
   4. Layout
   ---------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

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

.section {
  padding-block: var(--space-20);
}

.section--surface {
  background-color: var(--color-surface);
}

.section--primary {
  background-color: var(--color-primary);
  color: #fff;
}

.section--primary h2,
.section--primary h3,
.section--primary p {
  color: #fff;
}

/* ----------------------------------------------------------
   5. Botones
   ---------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: 700;
  border-radius: var(--radius-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-base);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background-color: var(--color-primary);
  color: #fff;
}

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

.btn--secondary {
  background-color: var(--color-secondary);
  color: #fff;
}

.btn--secondary:hover {
  background-color: var(--color-secondary-dark);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn--outline:hover {
  background-color: var(--color-primary);
  color: #fff;
}

.btn--white {
  background-color: #fff;
  color: var(--color-primary);
}

.btn--white:hover {
  background-color: var(--color-surface);
}

/* ----------------------------------------------------------
   6. Header y navegación
   ---------------------------------------------------------- */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.header--scrolled {
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: var(--color-text);
}

.logo__icon {
  display: block;
  flex-shrink: 0;
  height: 48px;
  width: auto;
}

.logo__text {
  display: block;
  height: 32px;
  width: auto;
}

.nav {
  display: none;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav__link {
  position: relative;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.nav__link:hover,
.nav__link[aria-current="page"] {
  color: var(--color-primary);
}

.nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-base);
}

.nav__link:hover::after,
.nav__link[aria-current="page"]::after {
  width: 100%;
}

.nav__cta {
  margin-left: var(--space-4);
}

/* Menú móvil */
.menu-toggle {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  color: var(--color-text);
}

.menu-toggle__icon {
  position: relative;
  width: 24px;
  height: 18px;
}

.menu-toggle__icon span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: currentColor;
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.menu-toggle__icon span:nth-child(1) { top: 0; }
.menu-toggle__icon span:nth-child(2) { top: 8px; }
.menu-toggle__icon span:nth-child(3) { bottom: 0; }

.menu-toggle[aria-expanded="true"] .menu-toggle__icon span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__icon span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__icon span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.mobile-nav {
  position: fixed;
  inset: 80px 0 0 0;
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  background-color: var(--color-bg);
  transform: translateX(100%);
  transition: transform var(--transition-base);
}

.mobile-nav--open {
  transform: translateX(0);
}

.mobile-nav__link {
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  font-weight: 700;
  color: var(--color-text);
}

.mobile-nav__link[aria-current="page"] {
  color: var(--color-primary);
}

/* ----------------------------------------------------------
   7. Hero
   ---------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-start;
  padding-block: calc(var(--space-10) + 80px) var(--space-12);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg) 50%, var(--color-primary-light) 100%);
}

.hero__pattern {
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.4;
  background-image: radial-gradient(var(--color-primary) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to bottom, black 40%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 40%, transparent 100%);
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}

.hero__inner > * {
  min-width: 0;
}

.hero__content {
  max-width: 620px;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.hero__title {
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  margin-bottom: var(--space-6);
}

.hero__title em {
  color: var(--color-primary);
  font-style: italic;
}

.hero__text {
  font-size: var(--fs-lg);
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.hero__media {
  position: relative;
}

.hero__image {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.hero__stats {
  position: absolute;
  bottom: -24px;
  left: -24px;
  display: grid;
  gap: var(--space-4);
  padding: var(--space-6);
  background-color: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.hero__stat-number {
  font-family: var(--font-display);
  font-size: var(--fs-3xl);
  font-weight: 700;
  color: var(--color-primary);
}

.hero__stat-label {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}

/* ----------------------------------------------------------
   8. Tarjetas de servicio
   ---------------------------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-12);
}

.service-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-8);
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary-light);
}

.service-card__icon {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  margin-bottom: var(--space-6);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-md);
}

.service-card__icon svg {
  width: 28px;
  height: 28px;
}

.service-card__title {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-3);
}

.service-card__text {
  font-size: var(--fs-sm);
  margin-bottom: var(--space-6);
}

.service-card__link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 700;
  color: var(--color-primary);
}

.service-card__link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-base);
}

.service-card:hover .service-card__link svg {
  transform: translateX(4px);
}

/* ----------------------------------------------------------
   9. Sección "Por qué elegirnos"
   ---------------------------------------------------------- */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-top: var(--space-12);
}

.feature {
  display: flex;
  gap: var(--space-5);
}

.feature__icon {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  background-color: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-md);
}

.feature__icon svg {
  width: 24px;
  height: 24px;
}

.feature__title {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-2);
}

.feature__text {
  font-size: var(--fs-sm);
  margin-bottom: 0;
}

/* ----------------------------------------------------------
   10. CTA banner
   ---------------------------------------------------------- */
.cta-banner {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  padding: var(--space-12) var(--space-8);
  text-align: center;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
}

.cta-banner__title {
  color: #fff;
  font-size: var(--fs-3xl);
  margin-bottom: var(--space-4);
}

.cta-banner__text {
  color: rgba(255, 255, 255, 0.9);
  max-width: 50ch;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}

.cta-banner__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
}

/* ----------------------------------------------------------
   11. Página de servicios — detalle
   ---------------------------------------------------------- */
.page-header {
  padding-top: calc(var(--space-24) + 80px);
  padding-bottom: var(--space-16);
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg) 100%);
  text-align: center;
}

.page-header__title {
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  margin-bottom: var(--space-4);
}

.page-header__intro {
  max-width: 65ch;
  margin-inline: auto;
}

.service-detail {
  padding-block: var(--space-20);
  border-bottom: 1px solid var(--color-border);
}

.service-detail:last-of-type {
  border-bottom: none;
}

.service-detail--alt {
  background-color: var(--color-surface);
}

.service-detail__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
}

.service-detail__media {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.service-detail__image {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.service-detail:hover .service-detail__image {
  transform: scale(1.03);
}

.service-detail__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.service-detail__title {
  font-size: var(--fs-3xl);
  margin-bottom: var(--space-2);
}

.service-detail__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
  font-weight: 700;
  color: var(--color-primary);
}

.service-detail__cta svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-base);
}

.service-detail__cta:hover svg {
  transform: translateX(4px);
}

.service-detail__list {
  display: grid;
  gap: var(--space-3);
}

.service-detail__list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  color: var(--color-text-muted);
}

.service-detail__list svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  margin-top: 2px;
}

/* Proceso */
.process-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-12);
}

.process-step {
  position: relative;
  padding: var(--space-8);
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
}

.process-step__number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-5);
  font-family: var(--font-body);
  font-size: var(--fs-xl);
  font-weight: 700;
  line-height: 1;
  color: #fff;
  background-color: var(--color-primary);
  border-radius: 50%;
}

.process-step__title {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-3);
}

.process-step__text {
  font-size: var(--fs-sm);
  margin-bottom: 0;
}

/* ----------------------------------------------------------
   12. Página de contacto
   ---------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: start;
}

.contact-form {
  display: grid;
  gap: var(--space-6);
  padding: var(--space-8);
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.form-group {
  display: grid;
  gap: var(--space-2);
}

.form-label {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-text);
}

.form-label--checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-weight: 400;
  color: var(--color-text-muted);
}

.form-label--checkbox input[type="checkbox"] {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-primary);
}

.form-label--checkbox a {
  color: var(--color-primary);
  text-decoration: underline;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
  outline: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-light);
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
}

.form-error {
  display: none;
  font-size: var(--fs-sm);
  color: #dc2626;
}

.form-group--error .form-input,
.form-group--error .form-textarea,
.form-group--error .form-select {
  border-color: #dc2626;
}

.form-group--error .form-label--checkbox {
  color: #dc2626;
}

.form-group--error .form-error {
  display: block;
}

.form-feedback {
  padding: var(--space-4);
  margin-top: var(--space-4);
  border-radius: var(--radius-md);
  font-weight: 600;
}

.form-feedback--success {
  background-color: #d1fae5;
  color: #065f46;
}

.form-feedback--error {
  background-color: #fee2e2;
  color: #991b1b;
}

.contact-info {
  display: grid;
  gap: var(--space-8);
}

.contact-info__card {
  display: flex;
  gap: var(--space-5);
}

.contact-info__icon {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-md);
}

.contact-info__icon svg {
  width: 26px;
  height: 26px;
}

.contact-info__title {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-1);
}

.contact-info__text {
  font-size: var(--fs-sm);
  margin-bottom: 0;
}

.contact-info__link {
  color: var(--color-primary);
  font-weight: 600;
}

.contact-map {
  width: 100%;
  height: 320px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background-color: var(--color-surface-alt);
}

.contact-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* FAQ */
.faq-list {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-10);
}

.faq-item {
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.faq-item--open {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}

.faq-item__question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5);
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--color-text);
  text-align: left;
  cursor: pointer;
  user-select: none;
}

.faq-item__question:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
  border-radius: var(--radius-xl);
}

.faq-item__question-text {
  flex: 1;
}

.faq-item__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  transition: transform var(--transition-base);
}

.faq-item__icon svg {
  width: 20px;
  height: 20px;
}

.faq-item--open .faq-item__icon {
  transform: rotate(180deg);
}

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 300ms ease;
}

.faq-item__answer p {
  padding: 0 var(--space-5) var(--space-5);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: var(--lh-relaxed);
  margin: 0;
}

/* ----------------------------------------------------------
   13. Footer
   ---------------------------------------------------------- */
.footer {
  padding-block: var(--space-16);
  background-color: var(--color-text);
  color: var(--color-text-light);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.footer__brand .logo {
  color: #fff;
  margin-bottom: var(--space-4);
}

.footer__brand .logo__icon,
.footer__brand .logo__text {
  filter: brightness(0) invert(1);
}

.footer__brand p {
  color: var(--color-text-light);
  max-width: 32ch;
}

.footer__title {
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #fff;
  margin-bottom: var(--space-5);
}

.footer__links {
  display: grid;
  gap: var(--space-3);
}

.footer__links a {
  color: var(--color-text-light);
  transition: color var(--transition-fast);
}

.footer__links a:hover {
  color: #fff;
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--fs-sm);
  color: var(--color-text-light);
}

/* ----------------------------------------------------------
   14. Utilidades
   ---------------------------------------------------------- */
.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }

/* ----------------------------------------------------------
   15. Responsive
   ---------------------------------------------------------- */
@media (max-width: 767px) {
  .hero {
    min-height: auto;
    padding-block: calc(var(--space-8) + 80px) var(--space-10);
  }

  .hero__title {
    overflow-wrap: break-word;
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .hero__stats {
    left: 0;
    bottom: -16px;
  }

  .hero__media {
    margin-bottom: var(--space-6);
  }

  .section__title {
    font-size: var(--fs-3xl);
  }

  .cta-banner {
    padding: var(--space-8) var(--space-5);
  }

  .cta-banner__title {
    font-size: var(--fs-2xl);
  }
}

@media (max-width: 479px) {
  :root {
    --fs-5xl: 2.25rem;
    --fs-4xl: 2rem;
    --fs-3xl: 1.75rem;
  }

  .container {
    padding-inline: var(--space-4);
  }

  .header .logo__text {
    height: 28px;
    max-width: 140px;
  }
}

@media (min-width: 640px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

@media (min-width: 768px) {
  :root {
    --fs-5xl: 3.5rem;
    --fs-4xl: 3rem;
  }

  .nav {
    display: block;
  }

  .menu-toggle,
  .mobile-nav {
    display: none;
  }

  .hero {
    align-items: center;
    padding-block: calc(var(--space-20) + 80px) var(--space-24);
  }

  .hero__text {
    margin-bottom: var(--space-8);
  }

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

  .service-detail__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
  }

  .service-detail--reverse .service-detail__media {
    order: 2;
  }

  .service-detail__title {
    font-size: var(--fs-4xl);
  }

  .contact-grid {
    grid-template-columns: 1.2fr 0.8fr;
  }

  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }

  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  :root {
    --fs-5xl: 4rem;
    --fs-4xl: 3.5rem;
  }

  .services-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .process-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Animaciones reducidas */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}