/* ==========================================================================
   dejadetirardinero.com - CSS Nativo Optimizado (< 500ms Target)
   Sin dependencias externas, alto contraste, 100% responsive y accesible.
   ========================================================================== */

:root {
  /* Paleta de colores: Fondo claro, texto de máximo contraste y acento Google/Alerta */
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  --color-border-strong: #cbd5e1;

  --color-text: #0f172a;
  --color-text-secondary: #334155;
  --color-text-muted: #64748b;

  /* Azul Google de alta conversión + Tono alerta estratégico */
  --color-accent: #1a73e8;
  --color-accent-hover: #1557b0;
  --color-accent-soft: #e8f0fe;

  --color-alert: #d93025;
  --color-alert-soft: #fce8e6;

  --color-success: #137333;
  --color-success-soft: #e6f4ea;

  /* Tipografía limpia (Inter / Roboto / System UI sin bloqueo de renderizado) */
  --font-sans: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Oxygen, Ubuntu, Cantarell, sans-serif;

  /* Espaciado y layout */
  --container-max: 960px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 10px 30px -10px rgba(15, 23, 42, 0.1);
  --shadow-cta: 0 8px 20px -4px rgba(26, 115, 232, 0.45);
}

/* Reset ligero y moderno */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg {
  display: block;
  max-width: 100%;
}

/* Utilidades de contenedor y sección */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.section {
  padding-block: clamp(3.5rem, 7vw, 5.5rem);
}

.section--alt {
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section__header {
  max-width: 740px;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.section__eyebrow {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  background-color: var(--color-accent-soft);
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 0.875rem;
}

.section__eyebrow--alert {
  color: var(--color-alert);
  background-color: var(--color-alert-soft);
}

.section__title {
  font-size: clamp(1.625rem, 3.5vw, 2.25rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

/* Cabecera minimalista */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4rem;
  gap: 1rem;
}

.site-logo {
  font-size: 1.0625rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
  text-decoration: none;
}

.site-logo span {
  color: var(--color-alert);
}

.site-header__cta {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-accent);
  text-decoration: none;
  padding: 0.45rem 0.9rem;
  border: 1.5px solid var(--color-accent);
  border-radius: var(--radius-sm);
  transition: background-color 0.15s ease, color 0.15s ease;
}

.site-header__cta:hover,
.site-header__cta:focus-visible {
  background-color: var(--color-accent);
  color: #ffffff;
}

/* Botones orientados a conversión */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #ffffff;
  box-shadow: var(--shadow-cta);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-1px);
}

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

.btn-lg {
  font-size: clamp(1rem, 2vw, 1.125rem);
  padding: 1rem 1.75rem;
  min-height: 3.5rem;
}

.btn-block {
  width: 100%;
}

/* 1. HERO */
.hero {
  padding-top: clamp(3rem, 7vw, 5.5rem);
  padding-bottom: clamp(3.5rem, 8vw, 6rem);
}

.hero__container {
  max-width: 820px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  margin-bottom: 1.5rem;
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-alert);
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.125rem);
  font-weight: 850;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: 1.375rem;
}

.hero__subtitle {
  font-size: clamp(1.0625rem, 2.2vw, 1.25rem);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: 2.25rem;
  max-width: 720px;
}

.hero__actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.875rem;
}

.hero__microcopy {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* 2. PAIN POINTS */
.pain-points__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .pain-points__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

.pain-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-alert);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  box-shadow: var(--shadow-sm);
}

.pain-card__indicator {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--color-alert);
  margin-bottom: 0.75rem;
}

.pain-card__text {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.pain-card__text strong {
  display: block;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

/* 3. AUTHORITY */
.authority__card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1.75rem, 4vw, 2.75rem);
  box-shadow: var(--shadow-md);
}

@media (min-width: 700px) {
  .authority__card {
    grid-template-columns: 180px 1fr;
    gap: 2.5rem;
  }
}

.authority__media {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.75rem;
}

.authority__avatar {
  width: 148px;
  height: 148px;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-accent-soft);
  object-fit: cover;
}

.authority__caption {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.authority__quote p {
  font-size: clamp(1.125rem, 2.4vw, 1.375rem);
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-text);
}

/* 4. METHODOLOGY */
.methodology__steps {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .methodology__steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

.step-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  box-shadow: var(--shadow-sm);
}

.step-card__number {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  background-color: var(--color-accent-soft);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
}

.step-card__text {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* 5. LEAD CAPTURE */
.lead-capture__container {
  max-width: 640px;
}

.lead-capture__box {
  background-color: var(--color-surface);
  border: 2px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  padding: clamp(1.75rem, 5vw, 3rem);
  box-shadow: var(--shadow-md);
}

.lead-capture__header {
  margin-bottom: 1.75rem;
}

.lead-capture__intro {
  margin-top: 0.75rem;
  font-size: 1rem;
  color: var(--color-text-secondary);
}

.audit-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.form-label {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-text);
}

.form-required {
  color: var(--color-alert);
}

.form-input {
  width: 100%;
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-input::placeholder {
  color: #94a3b8;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.form-help {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.45;
}

.form-feedback {
  border-radius: var(--radius-sm);
  padding: 1rem 1.125rem;
  font-size: 0.9375rem;
}

.form-feedback--error {
  background-color: var(--color-alert-soft);
  color: var(--color-alert);
  border: 1px solid rgba(217, 48, 37, 0.25);
  font-weight: 600;
}

.form-feedback--success {
  background-color: var(--color-success-soft);
  color: var(--color-success);
  border: 1px solid rgba(19, 115, 51, 0.25);
}

.form-feedback--success h3 {
  font-size: 1.125rem;
  margin-bottom: 0.4rem;
}

.audit-form__privacy {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: 2rem;
  background-color: var(--color-bg-alt);
}

.site-footer__inner {
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Optimización móvil adicional */
@media (max-width: 480px) {
  .hero__actions .btn {
    width: 100%;
  }
}