/* ===== VARIABLES Y RESET ===== */
:root {
  /* Paleta de colores principal */
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --text-primary: #ffffff;
  --text-secondary: #e0e0e0;
  --text-muted: #9e9e9e;
  --accent-color: #1b5e20; /* Verde oscuro */
  --accent-hover: #2e7d32; /* Verde un poco más claro */
  --accent-shadow: rgba(27, 94, 32, 0.3);
  --border-color: #2a2a2a;
  --card-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
  --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius: 8px;
  --dark-bg: #0a0a0a;
  --dark-bg-2: #111111;
  --dark-fg: #fff;
  --dark-accent: #1b5e20;
  --dark-radius: 16px;
  --dark-shadow: 0 6px 24px rgba(0,0,0,0.22);
  
  /* Color Palette */
  --color-primary: #1b5e20;
  --color-primary-light: #2e7d32;
  --color-primary-dark: #0d3c10;
  --color-secondary: #1e88e5;
  --color-accent: #ffab00;
  --color-success: #4caf50;
  --color-warning: #ff9800;
  --color-danger: #f44336;
  
  /* Background Colors */
  --bg-surface: #1e1e1e;
  --bg-elevated: #252525;
  
  /* Text Colors */
  --text-on-primary: #ffffff;
  --text-on-accent: #000000;
  
  /* Border & Shadows */
  --border-radius-sm: 6px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --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);
  
  /* Transitions */
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-heading: 'Poppins', var(--font-sans);
  --font-mono: 'Fira Code', 'Consolas', monospace;
  
  /* Layout */
  --header-height: 72px;
  --max-width: 1280px;
  --container-padding: 1.5rem;
}

/* ===== RESET Y ESTILOS BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  transition: var(--transition-base);
}

::selection {
  background: var(--color-primary);
  color: var(--text-on-primary);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 2rem);
  font-size: 16px;
  height: 100%;
}

body.dark-theme {
  font-family: var(--font-sans);
  background-color: var(--dark-bg);
  color: var(--dark-fg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== ANIMACIONES ===== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes gradientBG {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes slideInLeft {
  from { transform: translateX(-50px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes slideInRight {
  from { transform: translateX(50px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ===== TIPOGRAFÍA ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

h1 { 
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  background: linear-gradient(120deg, var(--color-primary), var(--color-primary-light));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  position: relative;
  display: inline-block;
  margin-bottom: 2.5rem;
}

h2::after {
  content: '';
  position: absolute;
  bottom: -0.75rem;
  left: 0;
  width: 60px;
  height: 4px;
  background: var(--color-primary);
  border-radius: 2px;
}

h3 {
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

p {
  margin-bottom: 1.25rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 65ch;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition-base);
  position: relative;
}

a:hover {
  color: var(--color-primary-light);
}

/* ===== ENLACES ===== */
a {
  color: var(--accent-color);
  text-decoration: none;
  transition: var(--transition-base);
  position: relative;
}

a:hover {
  color: var(--accent-hover);
  text-shadow: 0 0 8px var(--accent-shadow);
}

/* ===== BOTONES ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  vertical-align: middle;
  cursor: pointer;
  user-select: none;
  border: 1px solid #334155;
  border-radius: var(--border-radius);
  background: linear-gradient(135deg, #1b5e20 0%, #2e7d32 100%) !important;
  color: #fff !important;
  transition: 0.3s;
  box-shadow: none;
}

.btn:hover {
  background: linear-gradient(135deg, #2e7d32 0%, #43a047 100%) !important;
}

.btn-outline {
  background-color: transparent;
  border: 1px solid #23272f;
  color: var(--accent-color);
}

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

/* ===== TARJETAS ===== */
.card {
  background: var(--dark-bg-2) !important;
  color: var(--dark-fg) !important;
  border-radius: var(--dark-radius);
  border: 1px solid #23272f;
  box-shadow: var(--dark-shadow);
  overflow: hidden;
  transition: var(--transition-base);
  
  opacity: 0;
  
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: none;
}

.card-header {
  padding: 1.25rem 1.5rem;
  background-color: var(--bg-tertiary);
  border-bottom: 1px solid #23272f;
}

.card-body {
  padding: 1.5rem;
}

.card-footer {
  padding: 1rem 1.5rem;
  background-color: var(--bg-tertiary);
  border-top: 1px solid #23272f;
}

/* ===== FORMULARIOS ===== */
.form-control {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-primary);
  background: #181c24 !important;
  background-clip: padding-box;
  border: 1px solid #23272f !important;
  border-radius: 8px !important;
  transition: var(--transition-base);
}

.form-control:focus {
  border-color: #23272f !important;
  background: #23272f !important;
  color: #fff !important;
}

/* ===== EFECTOS ESPECIALES ===== */
.glow {
  text-shadow: 0 0 10px var(--accent-shadow);
}

.hover-glow:hover {
  text-shadow: 0 0 15px var(--accent-shadow);
}

/* ===== UTILIDADES ===== */
.container {
  width: 100%;
  padding-right: 15px;
  padding-left: 15px;
  margin-right: auto;
  margin-left: auto;
}

@media (min-width: 576px) {
  .container {
    max-width: 540px;
  }
}

@media (min-width: 768px) {
  .container {
    max-width: 720px;
  }
}

@media (min-width: 992px) {
  .container {
    max-width: 960px;
  }
}

@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }
}

/* ===== ANIMACIONES DE ENTRADA ===== */
.animate-in {
  
  opacity: 0;
}






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

section {
  padding: 6rem 0;
  position: relative;
  overflow: hidden;
}

/* ===== UTILITY CLASSES ===== */
.text-gradient {
  background: linear-gradient(120deg, var(--color-primary), var(--color-primary-light));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
}

.glass-effect {
  background: rgba(15, 15, 15, 0.7);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: none;
}

.hover-scale {
  transition: var(--transition-base);
}

.hover-scale:hover {
  transform: scale(1.02);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  :root {
    --container-padding: 1.25rem;
  }
  
  section {
    padding: 4rem 0;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 65px;
  }
  
  h1 {
    font-size: 2.25rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  section {
    padding: 3rem 0;
  }
}

@media (max-width: 480px) {
  :root {
    --container-padding: 1rem;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
  }
  
  h2::after {
    width: 40px;
    height: 3px;
    bottom: -0.5rem;
  }
}

::-webkit-scrollbar {
  width: 10px;
  background: #181c24;
}

::-webkit-scrollbar-thumb {
  background: #23272f;
  border-radius: 8px;
}