/* ========================================= */
/* VARIABLES CSS - PROGRAMA UDS */
/* ========================================= */

:root {
    /* Colores Base */
    --color-white: #FFFFFF;
    --color-light-gray: #F8FAFC;
    --color-medium-gray: #E2E8F0;
    --color-dark-gray: #64748B;
    --color-black: #0F172A;
    
    /* Paleta UDS - Desarrollo Sostenible */
    --color-primary-green: #059669;
    --color-secondary-blue: #0EA5E9;
    --color-accent-orange: #F59E0B;
    --color-sustainability: #10B981;
    --color-innovation: #8B5CF6;
    --color-collaboration: #EC4899;
    --color-education: #3B82F6;
    --color-global: #06B6D4;
    
    /* Colores de Categorías UDS */
    --category-bronze: #CD7F32;
    --category-silver: #C0C0C0;
    --category-gold: #FFD700;
    --category-platinum: #E5E4E2;
    
    /* Colores por Tipo de Beneficio */
    --benefit-event: #0EA5E9;
    --benefit-formation: #8B5CF6;
    --benefit-technology: #059669;
    --benefit-international: #F59E0B;
    --benefit-networking: #EC4899;
    --benefit-certification: #3B82F6;
    --benefit-mentoring: #10B981;
    --benefit-entrepreneurship: #F97316;
    
    /* Gradientes UDS */
    --gradient-hero: linear-gradient(135deg, #ECFDF5 0%, #E0F2FE 30%, #F0F9FF 60%, #F3E8FF 100%);
    --gradient-primary: linear-gradient(135deg, var(--color-primary-green) 0%, var(--color-secondary-blue) 100%);
    --gradient-sustainability: linear-gradient(135deg, var(--color-sustainability) 0%, var(--color-primary-green) 100%);
    --gradient-innovation: linear-gradient(135deg, var(--color-innovation) 0%, var(--color-education) 100%);
    --gradient-collaboration: linear-gradient(135deg, var(--color-collaboration) 0%, var(--color-accent-orange) 100%);
    --gradient-global: linear-gradient(135deg, var(--color-global) 0%, var(--color-secondary-blue) 100%);
    
    /* Sombras */
    --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);
    --shadow-glow-green: 0 0 20px rgba(5, 150, 105, 0.3);
    --shadow-glow-blue: 0 0 20px rgba(14, 165, 233, 0.3);
    --shadow-glow-orange: 0 0 20px rgba(245, 158, 11, 0.3);
    
    /* Tipografía */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-secondary: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Espaciado */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-2xl: 1.5rem;
    --border-radius-full: 9999px;
    
    /* Transiciones */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
    --z-popover: 1050;
    --z-tooltip: 1060;
}

/* ========================================= */
/* RESET Y BASE */
/* ========================================= */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-secondary);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-dark-gray);
    background-color: var(--color-white);
    overflow-x: hidden;
}

/* ========================================= */
/* UTILIDADES */
/* ========================================= */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-family: var(--font-primary);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-dark-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================= */
/* BOTONES */
/* ========================================= */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-primary);
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--border-radius-lg);
    transition: var(--transition-normal);
    cursor: pointer;
    border: none;
    font-size: 0.875rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: var(--color-white);
    color: var(--color-primary-green);
    border: 2px solid var(--color-primary-green);
}

.btn-secondary:hover {
    background: var(--color-primary-green);
    color: var(--color-white);
}

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

.btn-outline:hover {
    background: var(--color-light-gray);
    border-color: var(--color-primary-green);
    color: var(--color-primary-green);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* ========================================= */
/* HEADER */
/* ========================================= */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-medium-gray);
    z-index: var(--z-fixed);
    transition: var(--transition-normal);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-logo {
    height: 40px;
    width: auto;
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--color-black);
    line-height: 1.2;
}

.brand-subtitle {
    font-size: 0.75rem;
    color: var(--color-dark-gray);
    line-height: 1;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-family: var(--font-primary);
    font-weight: 500;
    color: var(--color-dark-gray);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--color-dark-gray);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-medium-gray);
    z-index: var(--z-dropdown);
}

.mobile-menu-content {
    padding: 1rem;
}

.mobile-nav-link {
    display: block;
    padding: 0.75rem 0;
    font-family: var(--font-primary);
    font-weight: 500;
    color: var(--color-dark-gray);
    text-decoration: none;
    border-bottom: 1px solid var(--color-light-gray);
}

.mobile-menu-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 1rem;
}

/* ========================================= */
/* HERO SECTION */
/* ========================================= */

.hero {
    background: var(--gradient-hero);
    padding: 8rem 0 6rem;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-family: var(--font-primary);
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--color-black);
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-dark-gray);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2.5rem;
}

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

.stat-number {
    font-family: var(--font-primary);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary-green);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-dark-gray);
    margin-top: 0.25rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ========================================= */
/* ANIMACIÓN DE RED UNIVERSITARIA */
/* ========================================= */

.university-animation {
    display: flex;
    justify-content: center;
    align-items: center;
}

.network-container {
    position: relative;
    width: 400px;
    height: 400px;
}

.central-hub {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    box-shadow: var(--shadow-glow-green);
}

.hub-icon {
    color: var(--color-white);
    font-size: 2rem;
}

.hub-pulse {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 2px solid var(--color-primary-green);
    border-radius: 50%;
    animation: pulse 2s infinite;
    opacity: 0.6;
}

.university-nodes {
    position: relative;
    width: 100%;
    height: 100%;
}

.node {
    position: absolute;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: float 3s ease-in-out infinite;
    cursor: pointer;
    transition: var(--transition-normal);
}

.node:nth-child(1) { animation-delay: 0s; }
.node:nth-child(2) { animation-delay: 0.5s; }
.node:nth-child(3) { animation-delay: 1s; }
.node:nth-child(4) { animation-delay: 1.5s; }
.node:nth-child(5) { animation-delay: 2s; }
.node:nth-child(6) { animation-delay: 2.5s; }

.node-university {
    background: var(--gradient-sustainability);
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
}

.node-research {
    background: var(--gradient-innovation);
    top: 80px;
    right: 20px;
}

.node-innovation {
    background: var(--gradient-collaboration);
    bottom: 80px;
    right: 20px;
}

.node-sustainability {
    background: var(--gradient-global);
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
}

.node-technology {
    background: var(--gradient-primary);
    bottom: 80px;
    left: 20px;
}

.node-collaboration {
    background: var(--gradient-sustainability);
    top: 80px;
    left: 20px;
}

.node-icon {
    color: var(--color-white);
    font-size: 1.5rem;
}

.node:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-glow-green);
}

.connections-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.connection-line {
    stroke: var(--color-primary-green);
    stroke-width: 2;
    opacity: 0.3;
    animation: pulse-line 3s ease-in-out infinite;
}

.floating-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--color-primary-green);
    border-radius: 50%;
    animation: float-particle 4s ease-in-out infinite;
}

.particle-1 { top: 20%; left: 20%; animation-delay: 0s; }
.particle-2 { top: 30%; right: 15%; animation-delay: 1s; }
.particle-3 { bottom: 25%; left: 25%; animation-delay: 2s; }
.particle-4 { bottom: 35%; right: 30%; animation-delay: 3s; }
.particle-5 { top: 60%; left: 10%; animation-delay: 1.5s; }
.particle-6 { top: 70%; right: 10%; animation-delay: 2.5s; }

/* ========================================= */
/* OBJETIVOS */
/* ========================================= */

.objectives-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.objective-card {
    background: var(--color-white);
    padding: 2rem;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition-normal);
}

.objective-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.objective-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--color-white);
    font-size: 1.5rem;
}

.objective-title {
    font-family: var(--font-primary);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: 0.75rem;
}

.objective-description {
    color: var(--color-dark-gray);
    line-height: 1.6;
}

.inspiration-quote {
    background: var(--gradient-hero);
    padding: 3rem;
    border-radius: var(--border-radius-2xl);
    text-align: center;
    margin-top: 3rem;
}

.inspiration-quote blockquote {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-black);
    font-style: italic;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.inspiration-quote cite {
    color: var(--color-primary-green);
    font-weight: 600;
}

/* ========================================= */
/* BENEFICIOS */
/* ========================================= */

.benefits-tabs {
    background: var(--color-white);
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.tabs-nav {
    display: flex;
    background: var(--color-light-gray);
    border-bottom: 1px solid var(--color-medium-gray);
}

.tab-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-primary);
    font-weight: 500;
    color: var(--color-dark-gray);
    transition: var(--transition-fast);
}

.tab-btn.active {
    background: var(--color-white);
    color: var(--color-primary-green);
    border-bottom: 3px solid var(--color-primary-green);
}

.tab-btn:hover:not(.active) {
    background: var(--color-white);
    color: var(--color-primary-green);
}

.tab-content {
    display: none;
    padding: 2rem;
}

.tab-content.active {
    display: block;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.benefit-card {
    background: var(--color-white);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition-normal);
    border: 1px solid var(--color-medium-gray);
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.benefit-card.featured {
    border: 2px solid var(--color-primary-green);
    box-shadow: var(--shadow-glow-green);
}

.benefit-header {
    position: relative;
    padding: 1.5rem;
    background: var(--gradient-hero);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.benefit-image {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.5rem;
}

.benefit-status {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-premium { background: var(--color-accent-orange); color: var(--color-white); }
.status-popular { background: var(--color-primary-green); color: var(--color-white); }
.status-exclusive { background: var(--color-innovation); color: var(--color-white); }
.status-startup { background: var(--color-collaboration); color: var(--color-white); }
.status-technology { background: var(--color-secondary-blue); color: var(--color-white); }

.benefit-content {
    padding: 1.5rem;
}

.benefit-title {
    font-family: var(--font-primary);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: 0.75rem;
}

.benefit-description {
    color: var(--color-dark-gray);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.benefit-details {
    margin-bottom: 1rem;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-dark-gray);
}

.detail-item i {
    color: var(--color-primary-green);
    font-size: 1rem;
}

.benefit-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
}

.tag-event { background: rgba(14, 165, 233, 0.1); color: var(--benefit-event); }
.tag-formation { background: rgba(139, 92, 246, 0.1); color: var(--benefit-formation); }
.tag-technology { background: rgba(5, 150, 105, 0.1); color: var(--benefit-technology); }
.tag-international { background: rgba(245, 158, 11, 0.1); color: var(--benefit-international); }
.tag-networking { background: rgba(236, 72, 153, 0.1); color: var(--benefit-networking); }
.tag-certification { background: rgba(59, 130, 246, 0.1); color: var(--benefit-certification); }
.tag-mentoring { background: rgba(16, 185, 129, 0.1); color: var(--benefit-mentoring); }
.tag-entrepreneurship { background: rgba(249, 115, 22, 0.1); color: var(--benefit-entrepreneurship); }
.tag-presential { background: rgba(34, 197, 94, 0.1); color: #22C55E; }
.tag-virtual { background: rgba(168, 85, 247, 0.1); color: #A855F7; }
.tag-hybrid { background: rgba(6, 182, 212, 0.1); color: #06B6D4; }
.tag-annual { background: rgba(251, 146, 60, 0.1); color: #FB923C; }
.tag-certified { background: rgba(34, 197, 94, 0.1); color: #22C55E; }
.tag-diploma { background: rgba(99, 102, 241, 0.1); color: #6366F1; }
.tag-sustainability { background: rgba(34, 197, 94, 0.1); color: #22C55E; }
.tag-continuous { background: rgba(156, 163, 175, 0.1); color: #9CA3AF; }
.tag-internship { background: rgba(245, 158, 11, 0.1); color: var(--benefit-international); }
.tag-immersive { background: rgba(139, 92, 246, 0.1); color: var(--benefit-formation); }
.tag-course { background: rgba(59, 130, 246, 0.1); color: var(--benefit-certification); }
.tag-innovation { background: rgba(139, 92, 246, 0.1); color: var(--benefit-formation); }
.tag-leadership { background: rgba(245, 158, 11, 0.1); color: var(--benefit-international); }
.tag-startup { background: rgba(249, 115, 22, 0.1); color: var(--benefit-entrepreneurship); }
.tag-global { background: rgba(6, 182, 212, 0.1); color: #06B6D4; }
.tag-professional { background: rgba(99, 102, 241, 0.1); color: #6366F1; }
.tag-platform { background: rgba(5, 150, 105, 0.1); color: var(--benefit-technology); }
.tag-permanent { background: rgba(156, 163, 175, 0.1); color: #9CA3AF; }
.tag-academic { background: rgba(59, 130, 246, 0.1); color: var(--benefit-certification); }
.tag-curricular { background: rgba(34, 197, 94, 0.1); color: #22C55E; }

.benefit-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--color-light-gray);
    background: var(--color-light-gray);
}

/* ========================================= */
/* CATEGORÍAS */
/* ========================================= */

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.category-card {
    background: var(--color-white);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition-normal);
    border: 2px solid transparent;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.category-card.bronze {
    border-color: var(--category-bronze);
}

.category-card.silver {
    border-color: var(--category-silver);
}

.category-card.gold {
    border-color: var(--category-gold);
}

.category-card.platinum {
    border-color: var(--category-platinum);
    border-width: 3px;
}

.category-header {
    padding: 2rem 1.5rem 1rem;
    text-align: center;
    position: relative;
}

.category-card.bronze .category-header {
    background: linear-gradient(135deg, rgba(205, 127, 50, 0.1) 0%, rgba(205, 127, 50, 0.05) 100%);
}

.category-card.silver .category-header {
    background: linear-gradient(135deg, rgba(192, 192, 192, 0.1) 0%, rgba(192, 192, 192, 0.05) 100%);
}

.category-card.gold .category-header {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.1) 0%, rgba(255, 215, 0, 0.05) 100%);
}

.category-card.platinum .category-header {
    background: linear-gradient(135deg, rgba(229, 228, 226, 0.2) 0%, rgba(229, 228, 226, 0.1) 100%);
}

.category-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    color: var(--color-white);
}

.category-card.bronze .category-icon {
    background: var(--category-bronze);
}

.category-card.silver .category-icon {
    background: var(--category-silver);
}

.category-card.gold .category-icon {
    background: var(--category-gold);
}

.category-card.platinum .category-icon {
    background: linear-gradient(135deg, #E5E4E2 0%, #C0C0C0 100%);
    color: var(--color-black);
}

.category-title {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.category-card.bronze .category-title {
    color: var(--category-bronze);
}

.category-card.silver .category-title {
    color: #8C8C8C;
}

.category-card.gold .category-title {
    color: #B8860B;
}

.category-card.platinum .category-title {
    color: #6B7280;
}

.category-badge {
    padding: 0.25rem 0.75rem;
    border-radius: var(--border-radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.category-card.bronze .category-badge {
    background: var(--category-bronze);
    color: var(--color-white);
}

.category-card.silver .category-badge {
    background: var(--category-silver);
    color: var(--color-black);
}

.category-card.gold .category-badge {
    background: var(--category-gold);
    color: var(--color-black);
}

.category-card.platinum .category-badge {
    background: var(--category-platinum);
    color: var(--color-black);
}

.category-content {
    padding: 1.5rem;
}

.category-requirements,
.category-benefits {
    margin-bottom: 1.5rem;
}

.category-requirements h4,
.category-benefits h4 {
    font-family: var(--font-primary);
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: 0.75rem;
}

.category-requirements ul,
.category-benefits ul {
    list-style: none;
    padding: 0;
}

.category-requirements li,
.category-benefits li {
    padding: 0.25rem 0;
    color: var(--color-dark-gray);
    position: relative;
    padding-left: 1.5rem;
}

.category-requirements li::before,
.category-benefits li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-primary-green);
    font-weight: bold;
}

/* ========================================= */
/* PROCESO */
/* ========================================= */

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.step-item {
    position: relative;
    background: var(--color-white);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    padding: 2rem;
    text-align: center;
    transition: var(--transition-normal);
}

.step-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.step-number {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 30px;
    background: var(--gradient-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.875rem;
}

.step-content {
    margin-top: 1rem;
}

.step-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-sustainability);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--color-white);
    font-size: 1.5rem;
}

.step-title {
    font-family: var(--font-primary);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: 0.75rem;
}

.step-description {
    color: var(--color-dark-gray);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.step-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-primary-green);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

.step-link:hover {
    color: var(--color-secondary-blue);
}

/* ========================================= */
/* SOBRE UDS */
/* ========================================= */

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text h3 {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-black);
    margin-bottom: 1rem;
    margin-top: 2rem;
}

.about-text h3:first-child {
    margin-top: 0;
}

.about-text p {
    color: var(--color-dark-gray);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin: 1.5rem 0;
}

.value-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--color-light-gray);
    border-radius: var(--border-radius-lg);
}

.value-item i {
    color: var(--color-primary-green);
    font-size: 1.25rem;
}

.value-item span {
    font-weight: 500;
    color: var(--color-black);
}

.about-stats {
    display: grid;
    gap: 1.5rem;
}

.stat-card {
    background: var(--color-white);
    padding: 1.5rem;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.stat-card .stat-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--color-white);
    font-size: 1.25rem;
}

.stat-card .stat-number {
    font-family: var(--font-primary);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary-green);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-card .stat-label {
    font-size: 0.875rem;
    color: var(--color-dark-gray);
}

/* ========================================= */
/* CTA SECTION */
/* ========================================= */

.cta-section {
    background: var(--gradient-hero);
    padding: 5rem 0;
}

.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-family: var(--font-primary);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 1rem;
}

.cta-subtitle {
    font-size: 1.25rem;
    color: var(--color-dark-gray);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.cta-contact {
    text-align: center;
}

.cta-contact p {
    color: var(--color-dark-gray);
    margin-bottom: 1rem;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-primary-green);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

.contact-item:hover {
    color: var(--color-secondary-blue);
}

/* ========================================= */
/* FOOTER */
/* ========================================= */

.footer {
    background: var(--color-black);
    color: var(--color-white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: 1rem;
    filter: brightness(0) invert(1);
}

.footer-description {
    color: var(--color-medium-gray);
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-section h4 {
    font-family: var(--font-primary);
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-white);
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--color-medium-gray);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-section a:hover {
    color: var(--color-primary-green);
}

.footer-bottom {
    border-top: 1px solid var(--color-dark-gray);
    padding-top: 1rem;
    text-align: center;
    color: var(--color-medium-gray);
    font-size: 0.875rem;
}

/* ========================================= */
/* ANIMACIONES */
/* ========================================= */

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.6;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.3;
    }
}

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

@keyframes pulse-line {
    0%, 100% {
        opacity: 0.3;
    }
    50% {
        opacity: 0.6;
    }
}

@keyframes float-particle {
    0%, 100% {
        transform: translateY(0px) translateX(0px);
        opacity: 0.4;
    }
    25% {
        transform: translateY(-15px) translateX(5px);
        opacity: 0.8;
    }
    50% {
        transform: translateY(-10px) translateX(-5px);
        opacity: 0.6;
    }
    75% {
        transform: translateY(-20px) translateX(10px);
        opacity: 0.9;
    }
}

/* ========================================= */
/* RESPONSIVE DESIGN */
/* ========================================= */

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header-nav,
    .header-actions {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .tabs-nav {
        flex-direction: column;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-info {
        flex-direction: column;
        gap: 1rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .network-container {
        width: 300px;
        height: 300px;
    }
    
    .central-hub {
        width: 60px;
        height: 60px;
    }
    
    .node {
        width: 45px;
        height: 45px;
    }
    
    .node-icon {
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .section {
        padding: 3rem 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero {
        padding: 6rem 0 4rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .cta-title {
        font-size: 2rem;
    }
    
    .benefit-card,
    .category-card,
    .step-item {
        margin: 0 0.5rem;
    }
}