/* ============================================================
   JUAN ARAGÓN — B2B Sales Consultant
   Design System v3.0 — Ultra-Minimal Premium
   ============================================================ */

/* --- Google Font Import --- */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=DM+Sans:wght@400;500;700&display=swap');

/* ============================================================
   0. CUSTOM PROPERTIES (Design Tokens)
   ============================================================ */
:root {
  /* Typography */
  --font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-secondary: 'DM Sans', sans-serif;

  /* Colors — Neutral Palette */
  --color-white: #ffffff;
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-border: #e8e8e8;
  --color-border-light: #f0f0f0;

  /* Text Colors */
  --color-text-primary: #1a1a1a;
  --color-text-secondary: #6b6b6b;
  --color-text-tertiary: #999999;
  --color-text-inverse: #ffffff;

  /* Accent Colors (Subtle Google-like) */
  --color-brand-blue: #4285F4;
  --color-brand-red: #EA4335;
  --color-brand-yellow: #FBBC04;
  --color-brand-green: #34A853;

  /* Accent */
  --color-accent: #1a1a1a;
  --color-accent-soft: #f5f5f5;

  /* Spacing Scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.08);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.1);

  /* Transitions */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-premium: cubic-bezier(0.16, 1, 0.3, 1); /* Ultra smooth premium ease */
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 250ms;
  --duration-normal: 400ms;
  --duration-slow: 700ms;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-primary);
  background-color: var(--color-white);
  overflow-x: hidden;
  animation: pageFadeIn 0.6s var(--ease-premium) forwards;
  opacity: 0;
}

@keyframes pageFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--duration-fast) var(--ease-out);
}

ul {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

p {
  color: var(--color-text-secondary);
  line-height: 1.75;
}

::selection {
  background-color: var(--color-brand-blue);
  color: var(--color-white);
}

/* Color Accent Utilities */
.text-accent-blue { color: var(--color-brand-blue) !important; }
.text-accent-red { color: var(--color-brand-red) !important; }
.text-accent-yellow { color: var(--color-brand-yellow) !important; }
.text-accent-green { color: var(--color-brand-green) !important; }

.dot-accent {
  display: inline-block;
  font-weight: 700 !important;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-brand-blue), var(--color-brand-red) 70%, var(--color-brand-yellow));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================================
   2. LAYOUT
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section {
  padding: var(--space-5xl) 0;
}

/* ============================================================
   3. NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: var(--space-lg) 0;
  transition: all var(--duration-normal) var(--ease-out);
  background: transparent;
}

.navbar.scrolled {
  padding: var(--space-md) 0;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border-light);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-primary);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-text-primary);
}

.logo span {
  font-weight: 300;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.nav-links a {
  font-family: var(--font-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  letter-spacing: 0.01em;
  position: relative;
  padding: var(--space-xs) 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-text-primary);
  transition: width var(--duration-normal) var(--ease-out);
}

.nav-links a:hover {
  color: var(--color-text-primary);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  font-family: var(--font-secondary);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text-primary) !important;
  background: transparent;
  padding: 0.875rem 2.5rem;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-text-primary);
  letter-spacing: 0.02em;
  transition: all var(--duration-normal) var(--ease-premium);
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  background: var(--color-text-primary);
  color: var(--color-text-inverse) !important;
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-primary);
  padding: var(--space-sm);
}

/* ============================================================
   4. HERO SECTION
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  position: relative;
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.hero-content {
  padding-right: var(--space-2xl);
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--space-xl);
}

.hero-label::before {
  content: '';
  display: inline-block;
  width: 32px;
  height: 1px;
  background: var(--color-text-tertiary);
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.035em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-xl);
}

.hero-title em {
  font-style: normal;
  color: var(--color-text-tertiary);
}

.hero-description {
  font-family: var(--font-secondary);
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
  max-width: 480px;
  margin-bottom: var(--space-2xl);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-family: var(--font-secondary);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.01em;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-premium);
  border: 1.5px solid transparent;
  line-height: 1;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-text-primary);
  color: var(--color-text-inverse);
  padding: 0.9375rem 2rem;
  border-color: var(--color-text-primary);
}

.btn-primary:hover {
  background: var(--color-white);
  color: var(--color-text-primary);
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 28px rgba(0,0,0,0.1);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text-secondary);
  padding: 0.9375rem 0;
  font-weight: 500;
}

.btn-secondary:hover {
  color: var(--color-text-primary);
}

.btn-secondary .arrow {
  display: inline-block;
  transition: transform var(--duration-normal) var(--ease-out);
}

.btn-secondary:hover .arrow {
  transform: translateX(4px);
}

/* Hero Image */
.hero-image {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-image-wrapper {
  position: relative;
  width: 100%;
  max-width: 480px;
  aspect-ratio: 3/4;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  background: var(--color-accent-soft);
}

.hero-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform var(--duration-normal) var(--ease-premium);
  transform-origin: center;
  transform: scale(1.1) translateY(calc(var(--parallax, 0) * -24px));
  will-change: transform;
}

.hero-image-wrapper:hover img {
  transform: scale(1.14) translateY(calc(var(--parallax, 0) * -24px));
}

/* Decorative elements around hero image */
.hero-image-decoration {
  position: absolute;
  width: calc(100% + 24px);
  height: calc(100% + 24px);
  top: -12px;
  left: -12px;
  border: 1px solid var(--color-border);
  border-radius: calc(var(--radius-2xl) + 4px);
  pointer-events: none;
}

/* Floating Badge */
.hero-badge {
  position: absolute;
  bottom: 32px;
  left: -40px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-md) var(--space-lg);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  animation: float 6s ease-in-out infinite;
  z-index: 2;
}

.hero-badge-icon {
  width: 40px;
  height: 40px;
  background: var(--color-accent-soft);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-badge-text h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 2px;
}

.hero-badge-text p {
  font-size: 0.6875rem;
  color: var(--color-text-tertiary);
  font-family: var(--font-secondary);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-tertiary);
  font-size: 0.6875rem;
  font-family: var(--font-secondary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: fadeInUp 1s var(--ease-out) 1.2s both;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: var(--color-border);
  position: relative;
  overflow: hidden;
}

.scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-text-primary);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0% { top: -100%; }
  50% { top: 100%; }
  100% { top: 100%; }
}

/* ============================================================
   5. TRUST BAR / METRICS
   ============================================================ */
.trust-bar {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
  background: var(--color-white);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

.trust-item {
  text-align: center;
  padding: var(--space-lg) 0;
}

.trust-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-xs);
  line-height: 1;
}

.trust-label {
  font-family: var(--font-secondary);
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  font-weight: 400;
  letter-spacing: 0.02em;
}

/* ============================================================
   6. SERVICES / PROPUESTA
   ============================================================ */
.services {
  background: var(--color-bg);
}

.section-header {
  max-width: 600px;
  margin-bottom: var(--space-4xl);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-secondary);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--space-lg);
}

.section-label::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--color-text-tertiary);
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-lg);
}

.section-description {
  font-family: var(--font-secondary);
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.75;
}

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

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  transition: all var(--duration-normal) var(--ease-premium);
  position: relative;
}

.service-card:hover {
  border-color: rgba(0,0,0,0.06);
  box-shadow: 0 16px 40px rgba(0,0,0,0.06);
  transform: translateY(-2px);
}

.service-icon {
  width: 48px;
  height: 48px;
  background: var(--color-accent-soft);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-xl);
}

.service-icon svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
}

.service-number {
  position: absolute;
  top: var(--space-xl);
  right: var(--space-xl);
  font-size: 0.75rem;
  font-weight: 500;
  font-family: var(--font-secondary);
  color: var(--color-text-tertiary);
}

.service-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
}

.service-card p {
  font-family: var(--font-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

/* ============================================================
   7. ABOUT SECTION
   ============================================================ */
.about .container {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: var(--space-4xl);
  align-items: center;
}

.about-image {
  position: relative;
}

.about-image-wrapper {
  border-radius: var(--radius-2xl);
  overflow: hidden;
  aspect-ratio: 4/5;
  background: var(--color-accent-soft);
}

.about-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 25%; /* Ajustado para centrar mejor el sujeto en retratos */
  transition: transform var(--duration-normal) var(--ease-premium);
  transform-origin: center;
  transform: scale(1.12) translateY(calc(var(--parallax, 0) * -24px));
  will-change: transform;
}

.about-image-wrapper:hover img {
  transform: scale(1.16) translateY(calc(var(--parallax, 0) * -24px));
}

.about-content {
  padding-left: var(--space-xl);
}

.about-content h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-xl);
  color: var(--color-text-primary);
}

.about-text {
  font-family: var(--font-secondary);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.about-text:last-of-type {
  margin-bottom: var(--space-2xl);
}

/* Capability Tags */
.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
}

.about-tag {
  font-family: var(--font-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-accent-soft);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border-light);
  transition: all var(--duration-fast) var(--ease-out);
}

.about-tag:hover {
  border-color: var(--color-border);
  color: var(--color-text-primary);
}

/* About Stats */
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-border-light);
}

.stat-item {
  text-align: left;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1;
  margin-bottom: var(--space-xs);
  letter-spacing: -0.02em;
}

.stat-description {
  font-family: var(--font-secondary);
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  line-height: 1.4;
}

/* ============================================================
   8. PROCESS SECTION
   ============================================================ */
.process {
  background: var(--color-bg);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  position: relative;
}

.process-step {
  padding: var(--space-2xl);
  position: relative;
  border-right: 1px solid var(--color-border-light);
}

.process-step:last-child {
  border-right: none;
}

.step-number {
  font-family: var(--font-secondary);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-xl);
}

.process-step h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
  letter-spacing: -0.01em;
}

.process-step p {
  font-family: var(--font-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

/* ============================================================
   9. CTA / CONTACT SECTION
   ============================================================ */
.contact {
  background: var(--color-white);
}

.contact-inner {
  background: var(--color-text-primary);
  border-radius: var(--radius-2xl);
  padding: var(--space-4xl) var(--space-3xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.contact-inner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 40%, rgba(255,255,255,0.04) 0%, transparent 60%);
  pointer-events: none;
}

.contact-inner h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  color: var(--color-white);
  margin-bottom: var(--space-lg);
  letter-spacing: -0.03em;
  position: relative;
  z-index: 1;
}

.contact-inner p {
  font-family: var(--font-secondary);
  font-size: 1.0625rem;
  color: rgba(255,255,255,0.6);
  max-width: 520px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.7;
  position: relative;
  z-index: 1;
}

.contact-inner .btn-white {
  background: var(--color-white);
  color: var(--color-text-primary);
  padding: 1rem 2.25rem;
  font-family: var(--font-secondary);
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: var(--radius-full);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-premium);
  position: relative;
  z-index: 1;
}

.contact-inner .btn-white:hover {
  background: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 28px rgba(0,0,0,0.2);
}

.contact-details {
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  margin-top: var(--space-2xl);
  position: relative;
  z-index: 1;
}

.contact-detail {
  font-family: var(--font-secondary);
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.4);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.contact-detail a {
  color: rgba(255,255,255,0.6);
  transition: color var(--duration-fast) var(--ease-out);
}

.contact-detail a:hover {
  color: var(--color-white);
}

/* ============================================================
   10. FOOTER
   ============================================================ */
footer {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--color-border-light);
  background: var(--color-white);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-text-primary);
}

.footer-logo span {
  font-weight: 300;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.footer-links a {
  font-family: var(--font-secondary);
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  transition: color var(--duration-fast) var(--ease-out);
}

.footer-links a:hover {
  color: var(--color-text-primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border-light);
}

.footer-copyright {
  font-family: var(--font-secondary);
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
}

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

.footer-socials a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  transition: all var(--duration-fast) var(--ease-out);
}

.footer-socials a:hover {
  background: var(--color-text-primary);
  border-color: var(--color-text-primary);
  color: var(--color-white);
}

.footer-socials a svg {
  width: 14px;
  height: 14px;
}

/* ============================================================
   11. SCROLL REVEAL ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity var(--duration-slow) var(--ease-premium),
              transform var(--duration-slow) var(--ease-premium);
  will-change: opacity, transform;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }
.delay-500 { transition-delay: 500ms; }

/* Initial hero animation */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================
   12. RESPONSIVE — Tablet (<=1024px)
   ============================================================ */
@media (max-width: 1024px) {
  :root {
    --nav-height: 64px;
  }

  .hero .container {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    text-align: center;
  }

  .hero-content {
    padding-right: 0;
    order: 2;
  }

  .hero-label {
    justify-content: center;
  }

  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-image {
    order: 1;
  }

  .hero-image-wrapper {
    max-width: 360px;
    margin: 0 auto;
  }

  .hero-badge {
    left: auto;
    right: -20px;
    bottom: 20px;
  }

  .scroll-indicator {
    display: none;
  }

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

  .about .container {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .about-content {
    padding-left: 0;
  }

  .about-image-wrapper {
    max-height: 400px;
    aspect-ratio: 16/10;
  }

  .process-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .process-step {
    border-right: none;
    border-bottom: 1px solid var(--color-border-light);
  }

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

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

  .contact-details {
    flex-direction: column;
    gap: var(--space-md);
  }
}

/* ============================================================
   13. RESPONSIVE — Mobile (<=640px)
   ============================================================ */
@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  .container {
    padding: 0 var(--space-lg);
  }

  .section {
    padding: var(--space-3xl) 0;
  }

  /* Mobile Nav */
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: var(--color-white);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--space-xl);
    transition: right var(--duration-normal) var(--ease-out);
    box-shadow: -8px 0 32px rgba(0,0,0,0.08);
    z-index: 999;
  }

  .nav-links.active {
    right: 0;
  }

  .nav-links a {
    font-size: 1.125rem;
  }

  .nav-cta {
    font-size: 1rem;
    padding: 0.875rem 2rem;
  }

  .mobile-toggle {
    display: flex;
    z-index: 1001;
  }

  /* Mobile overlay */
  .nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.3);
    z-index: 998;
  }

  .nav-overlay.active {
    display: block;
  }

  /* Hero */
  .hero {
    min-height: auto;
    padding-top: calc(var(--nav-height) + var(--space-2xl));
    padding-bottom: var(--space-2xl);
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-image-wrapper {
    max-width: 280px;
    aspect-ratio: 3/4;
  }

  .hero-image-decoration {
    display: none;
  }

  .hero-badge {
    display: none;
  }

  /* Trust */
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .trust-number {
    font-size: 1.5rem;
  }

  /* Services */
  .services-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .service-card {
    padding: var(--space-xl);
  }

  /* About */
  .about-stats {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }

  /* Contact */
  .contact-inner {
    padding: var(--space-2xl) var(--space-xl);
    border-radius: var(--radius-xl);
  }

  /* Footer */
  .footer-inner {
    flex-direction: column;
    gap: var(--space-lg);
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-lg);
    text-align: center;
  }
}

/* ============================================================
   15. BLOG / INSIGHTS
   ============================================================ */

/* Section footer (for "Ver todos" link) */
.section-footer {
  text-align: center;
  margin-top: var(--space-2xl);
}

/* -- Blog Hero (index page) -- */
.blog-hero {
  padding-top: calc(var(--nav-height) + var(--space-4xl));
  padding-bottom: var(--space-2xl);
  background: var(--color-white);
}

.blog-hero-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-xl);
  line-height: 1.15;
}

.blog-hero-description {
  font-family: var(--font-secondary);
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
  max-width: 600px;
}

/* -- Blog Grid & Cards -- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.blog-card {
  display: block;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  transition: all var(--duration-normal) var(--ease-premium);
  text-decoration: none;
  color: inherit;
}

.blog-card:hover {
  border-color: rgba(0,0,0,0.06);
  box-shadow: 0 16px 40px rgba(0,0,0,0.06);
  transform: translateY(-2px);
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-secondary);
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-lg);
}

.meta-separator {
  color: var(--color-border);
}

.blog-card h2,
.blog-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
  margin-bottom: var(--space-md);
  line-height: 1.4;
}

.blog-card p {
  font-family: var(--font-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.blog-card-link {
  font-family: var(--font-secondary);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.blog-card-link .arrow {
  display: inline-block;
  transition: transform var(--duration-normal) var(--ease-out);
}

.blog-card:hover .blog-card-link .arrow {
  transform: translateX(4px);
}

/* ============================================================
   16. ARTICLE PAGE
   ============================================================ */
.article-page {
  padding-top: calc(var(--nav-height) + var(--space-3xl));
  padding-bottom: var(--space-4xl);
}

.article-layout {
  max-width: 720px;
  margin: 0 auto;
}

/* Breadcrumbs */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-secondary);
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-2xl);
}

.breadcrumb a {
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
}

.breadcrumb a:hover {
  color: var(--color-text-primary);
}

/* Article Header */
.article-header {
  margin-bottom: var(--space-3xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--color-border-light);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-secondary);
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-xl);
}

.article-header h1 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-lg);
  line-height: 1.2;
}

.article-subtitle {
  font-family: var(--font-secondary);
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

/* Article Content — Typography */
.article-content {
  margin-bottom: var(--space-3xl);
}

.article-content p {
  font-family: var(--font-secondary);
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

.article-content h2 {
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-top: var(--space-3xl);
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}

.article-content strong {
  color: var(--color-text-primary);
  font-weight: 600;
}

.article-content ul,
.article-content ol {
  margin-bottom: var(--space-xl);
  padding-left: var(--space-xl);
}

.article-content li {
  font-family: var(--font-secondary);
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

/* Author box */
.article-author {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: var(--space-2xl);
}

.author-avatar {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

.author-info strong {
  font-size: 0.9375rem;
  color: var(--color-text-primary);
  display: block;
  margin-bottom: 2px;
}

.author-info p {
  font-family: var(--font-secondary);
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
}

/* Article CTA */
.article-cta {
  background: var(--color-accent-soft);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  text-align: center;
}

.article-cta h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
  letter-spacing: -0.01em;
}

.article-cta p {
  font-family: var(--font-secondary);
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  max-width: 480px;
  margin: 0 auto var(--space-xl);
  line-height: 1.7;
}

/* ============================================================
   17. RESPONSIVE — Blog Additions
   ============================================================ */
@media (max-width: 1024px) {
  .blog-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .blog-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .blog-card {
    padding: var(--space-xl);
  }

  .blog-hero-title {
    font-size: 1.75rem;
  }

  .article-header h1 {
    font-size: 1.5rem;
  }

  .article-content p,
  .article-content li {
    font-size: 1rem;
  }

  .article-cta {
    padding: var(--space-xl) var(--space-lg);
  }
}

/* ============================================================
   18. REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ============================================================
   WHATSAPP FLOATING BUTTON
   ============================================================ */
.whatsapp-float {
  position: fixed;
  width: 60px;
  height: 60px;
  bottom: 40px;
  right: 40px;
  background-color: #25d366;
  color: #ffffff;
  border-radius: 50%;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.4);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s var(--ease-premium), box-shadow 0.3s;
}

.whatsapp-float:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.6);
  color: #ffffff;
}

.whatsapp-float svg {
  width: 32px;
  height: 32px;
  fill: currentColor;
}

@media (max-width: 768px) {
  .whatsapp-float {
    width: 52px;
    height: 52px;
    bottom: 24px;
    right: 24px;
  }
  .whatsapp-float svg {
    width: 28px;
    height: 28px;
  }
}