/* ===== LOGOS DE CLIENTES EN CERTIFICACIONES ===== */
.cert-logo {
  width: 32px;
  height: 32px;
  object-fit: contain;
  margin-right: 8px;
  vertical-align: middle;
  border-radius: 4px; /* Opcional: bordes redondeados */
  background: #fff;   /* Opcional: fondo blanco para logos con fondo transparente */
  box-shadow: 0 1px 4px rgba(0,0,0,0.06); /* Opcional: sombra sutil */
}
/* ===== VARIABLES CORPORATIVAS PISCITEC - OPTIMIZADAS ===== */
:root {
  /* Colores Principales Piscitec - Manual de Marca */
  --color-azul-principal: #194970;
  --color-cian-corporativo: #01D5E3;
  --color-azul-isotipo: #184A71;
  --color-cian-claro: #4DBED3;
  
  /* Grises Optimizados para Mejor Contraste */
  --color-gris-oscuro: #2D3748;
  --color-gris-medio: #4A5568;
  --color-gris-claro: #718096;
  --color-blanco: #FFFFFF;
  --color-negro: #1A202C;
  
  /* Aplicaciones de Color Mejoradas */
  --color-primary: var(--color-azul-principal);
  --color-secondary: var(--color-cian-corporativo);
  --color-accent: var(--color-cian-claro);
  --color-text-primary: var(--color-gris-oscuro);
  --color-text-secondary: var(--color-gris-medio);
  --color-text-light: var(--color-gris-claro);
  --color-background: var(--color-blanco);
  --background-light: #F7FAFC;
  --background-dark: #EDF2F7;
  --border-color: #E2E8F0;
  --success-color: #38A169;
  --warning-color: #D69E2E;
  --error-color: #E53E3E;
  
  /* Estados Interactivos Mejorados */
  --color-hover: #2A5A7B;
  --color-active: #0E3A5F;
  --color-focus: var(--color-cian-corporativo);
  
  /* Tipografía Optimizada */
  --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Inter', sans-serif;
  --font-secondary: 'Lato', -apple-system, BlinkMacSystemFont, 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  
  /* Jerarquía Tipográfica Mejorada */
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 1.875rem;  /* 30px */
  --font-size-4xl: 2.25rem;   /* 36px */
  --font-size-5xl: 3rem;      /* 48px */
  --font-size-6xl: 3.75rem;   /* 60px */
  
  /* Pesos de Fuente */
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  
  /* Espaciado Sistemático */
  --spacing-0: 0;
  --spacing-px: 1px;
  --spacing-0-5: 0.125rem;    /* 2px */
  --spacing-1: 0.25rem;       /* 4px */
  --spacing-1-5: 0.375rem;    /* 6px */
  --spacing-2: 0.5rem;        /* 8px */
  --spacing-2-5: 0.625rem;    /* 10px */
  --spacing-3: 0.75rem;       /* 12px */
  --spacing-3-5: 0.875rem;    /* 14px */
  --spacing-4: 1rem;          /* 16px */
  --spacing-5: 1.25rem;       /* 20px */
  --spacing-6: 1.5rem;        /* 24px */
  --spacing-7: 1.75rem;       /* 28px */
  --spacing-8: 2rem;          /* 32px */
  --spacing-9: 2.25rem;       /* 36px */
  --spacing-10: 2.5rem;       /* 40px */
  --spacing-12: 3rem;         /* 48px */
  --spacing-16: 4rem;         /* 64px */
  --spacing-20: 5rem;         /* 80px */
  --spacing-24: 6rem;         /* 96px */
  --spacing-32: 8rem;         /* 128px */
  
  /* Sombras Progresivas */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);
  
  /* Border Radius Sistemático */
  --radius-none: 0;
  --radius-sm: 0.125rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-3xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Transiciones Optimizadas */
  --transition-all: all 0.15s ease-in-out;
  --transition-colors: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out;
  --transition-opacity: opacity 0.15s ease-in-out;
  --transition-shadow: box-shadow 0.15s ease-in-out;
  --transition-transform: transform 0.15s ease-in-out;
  
  /* Z-index */
  --z-auto: auto;
  --z-0: 0;
  --z-10: 10;
  --z-20: 20;
  --z-30: 30;
  --z-40: 40;
  --z-50: 50;
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
  --z-popover: 1050;
  --z-tooltip: 1060;
  
  /* Container Widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
}

/* ===== RESET MEJORADO ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-secondary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-background);
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-colors);
}

ul, ol {
  list-style: none;
}

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

input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* ===== TIPOGRAFÍA MEJORADA ===== */
h1, .h1 {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-4xl);
  line-height: 1.1;
  color: var(--color-text-primary);
  letter-spacing: -0.025em;
}

h2, .h2 {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-3xl);
  line-height: 1.2;
  color: var(--color-text-primary);
  letter-spacing: -0.025em;
}

h3, .h3 {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-2xl);
  line-height: 1.3;
  color: var(--color-text-primary);
}

h4, .h4 {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-xl);
  line-height: 1.4;
  color: var(--color-text-primary);
}

h5, .h5 {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-lg);
  line-height: 1.4;
  color: var(--color-text-primary);
}

h6, .h6 {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  line-height: 1.5;
  color: var(--color-text-primary);
}

p, .p {
  font-family: var(--font-secondary);
  font-weight: var(--font-weight-normal);
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-text-primary);
}

.text-small {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.text-large {
  font-size: var(--font-size-lg);
}

.text-xl {
  font-size: var(--font-size-xl);
}

.font-light { font-weight: var(--font-weight-light); }
.font-normal { font-weight: var(--font-weight-normal); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-accent { color: var(--color-accent); }
.text-muted { color: var(--color-text-secondary); }
.text-light { color: var(--color-text-light); }

/* ===== LAYOUT UTILITIES ===== */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding-left: var(--spacing-6);
  padding-right: var(--spacing-6);
}

@media (max-width: 640px) {
  .container {
    padding-left: var(--spacing-4);
    padding-right: var(--spacing-4);
  }
}

.section {
  padding-top: var(--spacing-20);
  padding-bottom: var(--spacing-20);
}

.section-sm {
  padding-top: var(--spacing-16);
  padding-bottom: var(--spacing-16);
}

.section-lg {
  padding-top: var(--spacing-24);
  padding-bottom: var(--spacing-24);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-16);
  max-width: 48rem;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-4);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.highlight {
  color: var(--color-secondary);
  font-weight: var(--font-weight-semibold);
}

/* Flex and Grid Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }

.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

.gap-2 { gap: var(--spacing-2); }
.gap-4 { gap: var(--spacing-4); }
.gap-6 { gap: var(--spacing-6); }
.gap-8 { gap: var(--spacing-8); }
.gap-12 { gap: var(--spacing-12); }

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Spacing */
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }
.mb-8 { margin-bottom: var(--spacing-8); }
.mb-12 { margin-bottom: var(--spacing-12); }
.mb-16 { margin-bottom: var(--spacing-16); }

.mt-2 { margin-top: var(--spacing-2); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }
.mt-8 { margin-top: var(--spacing-8); }
.mt-12 { margin-top: var(--spacing-12); }
.mt-16 { margin-top: var(--spacing-16); }

/* ===== BOTONES REDISEÑADOS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-6);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1.5;
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-all);
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
  position: relative;
  overflow: hidden;
}

.btn:focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.btn-sm {
  padding: var(--spacing-2) var(--spacing-4);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--spacing-4) var(--spacing-8);
  font-size: var(--font-size-lg);
}

.btn-xl {
  padding: var(--spacing-5) var(--spacing-10);
  font-size: var(--font-size-xl);
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-blanco);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--color-hover);
  border-color: var(--color-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-primary:active {
  background-color: var(--color-active);
  border-color: var(--color-active);
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: var(--color-blanco);
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--color-cian-claro);
  border-color: var(--color-cian-claro);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

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

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-blanco);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-text-primary);
  border-color: transparent;
}

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

.btn-full {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* ===== HEADER MODERNO ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(25, 73, 112, 0.08);
  transition: var(--transition-all);
}

.header.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-sm);
}

.navbar {
  padding: var(--spacing-4) 0;
}

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

.nav-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.nav-brand .logo {
  height: 48px;
  width: auto;
  margin-bottom: var(--spacing-1);
  transition: var(--transition-transform);
}

.nav-brand .logo:hover {
  transform: scale(1.05);
}

.brand-subtitle {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
  font-weight: var(--font-weight-medium);
  font-family: var(--font-primary);
}

.nav-menu {
  display: flex;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--spacing-8);
}

.nav-item {
  position: relative;
}

.nav-link {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  padding: var(--spacing-2) var(--spacing-3);
  border-radius: var(--radius-md);
  transition: var(--transition-all);
  position: relative;
}

.nav-link:hover {
  color: var(--color-primary);
  background-color: var(--background-light);
}

.nav-link.active {
  color: var(--color-primary);
  background-color: var(--background-light);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: var(--spacing-1);
  padding: var(--spacing-2);
  border-radius: var(--radius-md);
  transition: var(--transition-all);
}

.nav-toggle:hover {
  background-color: var(--background-light);
}

.nav-toggle .bar {
  width: 24px;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: var(--transition-all);
  border-radius: var(--radius-full);
}

.nav-toggle.active .bar:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active .bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active .bar:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* ===== HERO SECTION MODERNA ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.1);
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-16);
  align-items: center;
}

.hero-content {
  color: var(--color-blanco);
  padding: var(--spacing-8) 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  background-color: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  padding: var(--spacing-2) var(--spacing-4);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  margin-top: 30px;
  margin-bottom: var(--spacing-6);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-badge i {
  color: var(--color-secondary);
}

.hero-title {
  font-family: var(--font-primary);
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  line-height: 1.1;
  margin-bottom: var(--spacing-6);
  letter-spacing: -0.025em;
  color: #ffffff;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-description {
  font-size: var(--font-size-lg);
  line-height: 1.6;
  margin-bottom: var(--spacing-8);
  opacity: 1;
  max-width: 90%;
  color: #ffffff;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.4);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-6);
  padding: var(--spacing-4);
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-stat {
  text-align: center;
}

.hero-stat .stat-number {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-1);
  line-height: 1;
}

.hero-stat .stat-label {
  font-size: var(--font-size-sm);
  opacity: 0.9;
  line-height: 1.3;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-4);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-6);
}

.hero-buttons .btn {
  font-size: var(--font-size-base);
  padding: var(--spacing-3) var(--spacing-6);
}

.hero-buttons .btn-secondary {
  background-color: transparent;
  color: var(--color-blanco);
  border-color: rgba(255, 255, 255, 0.3);
}

.hero-buttons .btn-secondary:hover {
  background-color: var(--color-blanco);
  color: var(--color-primary);
  border-color: var(--color-blanco);
}

.hero-trust {
  text-align: center;
  opacity: 0.9;
  margin-top: var(--spacing-6);
}

.trust-text {
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-3);
}

.trust-indicators {
  display: flex;
  gap: var(--spacing-4);
  justify-content: center;
  flex-wrap: wrap;
}

.trust-badge {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-1-5) var(--spacing-3);
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Hero Visual - Dashboard Mejorado */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-dashboard {
  background-color: var(--color-blanco);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-6);
  box-shadow: var(--shadow-2xl);
  width: 100%;
  max-width: 500px;
  color: var(--color-text-primary);
  position: relative;
  overflow: hidden;
}

.hero-dashboard::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(from 0deg, transparent, rgba(1, 213, 227, 0.1), transparent);
  animation: rotate 20s linear infinite;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.dashboard-header {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-6);
  padding-bottom: var(--spacing-4);
  border-bottom: 2px solid var(--background-dark);
}

.dashboard-header h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
}

.live-indicator {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.live-indicator .dot {
  width: 8px;
  height: 8px;
  background-color: var(--success-color);
  border-radius: var(--radius-full);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.2); }
  100% { opacity: 1; transform: scale(1); }
}

.dashboard-metrics {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-6);
}

.metric-card {
  text-align: center;
  padding: var(--spacing-4);
  background-color: var(--background-light);
  border-radius: var(--radius-lg);
  transition: var(--transition-all);
}

.metric-card:hover {
  background-color: var(--background-dark);
  transform: translateY(-2px);
}

.metric-value {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-1);
  line-height: 1;
}

.metric-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-1);
  line-height: 1.2;
}

.metric-trend {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.metric-trend.positive {
  color: var(--success-color);
}

.metric-trend.negative {
  color: var(--error-color);
}

.dashboard-chart {
  position: relative;
  z-index: 1;
  height: 120px;
  background: linear-gradient(135deg, var(--background-light), var(--background-dark));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.cost-chart {
  width: 100%;
  height: 100%;
}

/* ===== RESPONSIVE DESIGN MEJORADO ===== */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--spacing-12);
  }
  
  .hero-content {
    order: 2;
  }
  
  .hero-visual {
    order: 1;
  }
  
  .hero-stats {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding-top: var(--spacing-12);
    transition: left 0.3s ease;
    z-index: var(--z-dropdown);
    box-shadow: var(--shadow-lg);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-list {
    flex-direction: column;
    gap: var(--spacing-6);
  }
  
  .nav-link {
    font-size: var(--font-size-lg);
    padding: var(--spacing-3) var(--spacing-6);
  }
  
  .nav-actions {
    margin-top: var(--spacing-8);
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .hero-title {
    font-size: var(--font-size-4xl);
  }
  
  .hero-description {
    font-size: var(--font-size-lg);
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--spacing-4);
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-3);
  }
  
  .hero-buttons .btn {
    width: 100%;
    max-width: 300px;
  }
  
  .dashboard-metrics {
    grid-template-columns: 1fr;
    gap: var(--spacing-2);
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: var(--spacing-4);
    padding-right: var(--spacing-4);
  }
  
  .hero {
    padding: var(--spacing-16) 0;
  }
  
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .hero-description {
    font-size: var(--font-size-base);
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .hero-dashboard {
    padding: var(--spacing-4);
  }
  
  .nav-brand .logo {
    height: 40px;
  }
}

/* ===== ACCESSIBILITY IMPROVEMENTS ===== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .hero-dashboard::before {
    animation: none;
  }
  
  .live-indicator .dot {
    animation: none;
  }
}

/* Focus styles for accessibility */
*:focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.btn:focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --color-primary: #000080;
    --color-secondary: #006060;
    --color-text-primary: #000000;
    --color-text-secondary: #333333;
    --border-color: #000000;
  }
  
  .btn-primary,
  .btn-secondary {
    border: 2px solid var(--color-text-primary);
  }
}

/* Dark mode preparation */
@media (prefers-color-scheme: dark) {
  :root {
    --color-text-primary: #E2E8F0;
    --color-text-secondary: #A0AEC0;
    --color-text-light: #718096;
    --background-light: #2D3748;
    --background-dark: #4A5568;
    --border-color: #4A5568;
    --color-background: #1A202C;
  }
  
  .header {
    background-color: rgba(26, 32, 44, 0.95);
    border-bottom-color: rgba(74, 85, 104, 0.3);
  }
  
  .nav-menu {
    background-color: rgba(26, 32, 44, 0.98);
  }
  
  .hero-dashboard {
    background-color: var(--color-background);
    border: 1px solid var(--border-color);
  }
}