/* ============================================================
  01. VARIABLES CSS
============================================================ */
:root {
  
  

  --color-bg:          #F5F8FF;    
  --color-bg-alt:      #EEF4FF;    
  --color-surface:     #FFFFFF;    
  --color-surface-2:   #F0F5FF;    
  --color-border:      #D6E4FF;    
  --color-border-2:    #C7DCFF;    

  
  --color-accent-1:    #EEF4FF;    
  --color-accent-2:    #C7DCFF;    
  --color-accent-3:    #5B9BF8;    
  --color-primary:     #2563EB;    
  --color-primary-dark:#1D4ED8;    

  
  --color-text:        #0F172A;    
  --color-text-2:      #334155;    
  --color-text-3:      #64748B;    
  --color-text-4:      #94A3B8;    

  
  
  --font-display:   'Syne', sans-serif;   
  --font-body:      'Inter', sans-serif;  
  --font-mono:      'Courier New', monospace; 

  
  --text-xs:    0.75rem;    
  --text-sm:    0.875rem;   
  --text-base:  1rem;       
  --text-lg:    1.125rem;   
  --text-xl:    1.25rem;    
  --text-2xl:   1.5rem;     
  --text-3xl:   1.875rem;   
  --text-4xl:   2.25rem;    
  --text-5xl:   3rem;       
  --text-6xl:   3.75rem;    
  --text-7xl:   4.5rem;     

  
  --space-1:  0.25rem;   
  --space-2:  0.5rem;    
  --space-3:  0.75rem;   
  --space-4:  1rem;      
  --space-5:  1.25rem;   
  --space-6:  1.5rem;    
  --space-8:  2rem;      
  --space-10: 2.5rem;    
  --space-12: 3rem;      
  --space-16: 4rem;      
  --space-20: 5rem;      
  --space-24: 6rem;      
  --space-32: 8rem;      

  
  --radius-sm:   0.375rem;   
  --radius-md:   0.625rem;   
  --radius-lg:   1rem;       
  --radius-xl:   1.5rem;     
  --radius-2xl:  2rem;       
  --radius-full: 9999px;     

  
  --shadow-sm:   0 1px 3px rgba(37, 99, 235, 0.06), 0 1px 2px rgba(37, 99, 235, 0.04);
  --shadow-md:   0 4px 16px rgba(37, 99, 235, 0.08), 0 2px 8px rgba(37, 99, 235, 0.04);
  --shadow-lg:   0 8px 32px rgba(37, 99, 235, 0.12), 0 4px 16px rgba(37, 99, 235, 0.06);
  --shadow-xl:   0 20px 60px rgba(37, 99, 235, 0.15), 0 8px 24px rgba(37, 99, 235, 0.08);
  --shadow-glow: 0 0 30px rgba(91, 155, 248, 0.3);

  
  --transition-fast:   150ms ease;
  --transition-base:   250ms ease;
  --transition-slow:   400ms ease;
  --transition-spring: 300ms cubic-bezier(0.34, 1.56, 0.64, 1); 

  
  --navbar-height: 72px;
}

/* ========================================
   MODAL DESCARGA CV
======================================== */

.cv-modal-overlay {
  position: fixed;
  inset: 0;

  display: flex;
  align-items: center;
  justify-content: center;

  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(8px);

  z-index: 9999;

  opacity: 0;
  visibility: hidden;

  transition:
    opacity var(--transition-base),
    visibility var(--transition-base);
}

.cv-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.cv-modal {
  width: min(90vw, 420px);

  background: var(--color-surface);

  border: 1px solid var(--color-border);

  border-radius: var(--radius-xl);

  box-shadow: var(--shadow-xl);

  padding: var(--space-8);

  text-align: center;

  transform: translateY(20px) scale(.96);

  transition:
    transform var(--transition-spring);
}

.cv-modal-overlay.active .cv-modal {
  transform: translateY(0) scale(1);
}

.cv-modal-icon {
  width: 72px;
  height: 72px;

  margin: 0 auto var(--space-6);

  display: flex;
  align-items: center;
  justify-content: center;

  border-radius: var(--radius-full);

  background: linear-gradient(
    135deg,
    var(--color-accent-1),
    var(--color-accent-2)
  );

  color: var(--color-primary);
}

.cv-modal-icon svg {
  width: 32px;
  height: 32px;
}

.cv-modal-title {
  margin-bottom: var(--space-3);

  font-family: var(--font-display);
  font-size: var(--text-2xl);

  color: var(--color-text);
}

.cv-modal-description {
  color: var(--color-text-3);

  line-height: 1.6;

  margin-bottom: var(--space-8);
}

.cv-modal-actions {
  display: flex;
  gap: var(--space-4);
}

.cv-modal-actions>* {
  flex: 1;
}

.cv-btn-cancel,
.cv-btn-download {
  height: 48px;

  border: none;
  border-radius: var(--radius-lg);

  font-family: var(--font-body);
  font-weight: 600;

  cursor: pointer;

  transition: all var(--transition-base);

  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);

  text-decoration: none;
}

.cv-btn-cancel {
  background: var(--color-surface-2);

  color: var(--color-text-2);

  border: 1px solid var(--color-border);
}

.cv-btn-cancel:hover {
  background: var(--color-accent-1);

  transform: translateY(-2px);
}

.cv-btn-download {
  background: var(--color-primary);

  color: white;

  box-shadow: var(--shadow-md);
}

.cv-btn-download:hover {
  background: var(--color-primary-dark);

  transform: translateY(-2px);

  box-shadow: var(--shadow-lg);
}



@media (max-width: 480px) {

  .cv-modal-actions {
    flex-direction: column;
  }

}

/* ============================================================
  02. RESET Y BASE
============================================================ */


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


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


body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  
  transition:
    background-color var(--transition-slow),
    color var(--transition-slow);
  
  overflow-x: hidden;
}


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


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


ul[role="list"],
ol[role="list"] {
  list-style: none;
}


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


:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}


@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================================
  03. UTILIDADES
============================================================ */


.container {
  width: 100%;
  max-width: 1200px;  
  margin: 0 auto;
  padding: 0 var(--space-6);
}


.section {
  padding: var(--space-24) 0;
}


.section-alt {
  background-color: var(--color-bg-alt);
}


.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-accent-1);
  border: 1px solid var(--color-accent-2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.section-eyebrow.light {
  color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}


.section-title {
  font-family: var(--font-display);
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.section-title.centered { text-align: center; }


.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-3);
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-16);
  line-height: 1.7;
}


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


.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: 600;
  font-family: var(--font-body);
  letter-spacing: 0.01em;
  cursor: pointer;
  transition:
    transform var(--transition-spring),
    box-shadow var(--transition-base),
    background-color var(--transition-base),
    color var(--transition-base);
  text-decoration: none;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }


.btn-primary {
  background: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.35);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.45);
}


.btn-secondary {
  background: var(--color-surface);
  color: var(--color-primary);
  border-color: var(--color-accent-3);
  box-shadow: var(--shadow-sm);
}
.btn-secondary:hover {
  background: var(--color-accent-1);
  box-shadow: var(--shadow-md);
}


.btn-white {
  background: #ffffff;
  color: var(--color-primary);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}
.btn-white:hover {
  background: var(--color-accent-1);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}


.btn-full { width: 100%; justify-content: center; }


.btn i, .btn svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ============================================================
  04. LOADER INICIAL
============================================================ */

#loader {
  
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  
  transition: opacity 0.5s ease, visibility 0.5s ease;
}


#loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}


.loader-initials {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}


.loader-bar {
  width: 120px;
  height: 3px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.loader-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-3));
  border-radius: var(--radius-full);
  
  animation: loaderProgress 1.2s ease forwards;
}

@keyframes loaderProgress {
  to { width: 100%; }
}

/* ============================================================
  05. NAVBAR
============================================================ */

#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--navbar-height);
  
  background: rgba(245, 248, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition:
    background var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}


#navbar.scrolled {
  background: rgba(245, 248, 255, 0.95);
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}


.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  gap: var(--space-8);
}


.nav-logo {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.01em;
  flex-shrink: 0;
  transition: color var(--transition-base);
}
.nav-logo:hover { color: var(--color-primary); }

.logo-bracket {
  color: var(--color-primary);
  font-weight: 400;
}


.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}


.nav-link {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-2);
  transition:
    color var(--transition-base),
    background-color var(--transition-base);
  position: relative;
}

.nav-link:hover {
  color: var(--color-primary);
  background: var(--color-accent-1);
}


.nav-link.active {
  color: var(--color-primary);
  font-weight: 600;
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
}


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


.theme-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--color-text-3);
  background: var(--color-surface-2);
  transition:
    color var(--transition-base),
    background-color var(--transition-base),
    transform var(--transition-spring);
}
.theme-btn:hover {
  color: var(--color-primary);
  background: var(--color-accent-1);
  transform: rotate(15deg);
}
.theme-btn svg { width: 18px; height: 18px; }


.light-mode .icon-moon { display: none; }
.dark-mode .icon-sun  { display: none; }


.hamburger {
  display: none; 
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--color-surface-2);
  padding: var(--space-2);
}

.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text);
  border-radius: var(--radius-full);
  transition:
    transform var(--transition-base),
    opacity var(--transition-base);
}


.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }


.mobile-menu {
  display: none; 
  padding: var(--space-4) var(--space-6) var(--space-6);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}

.mobile-menu ul { list-style: none; }

.mobile-link {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text-2);
  border-radius: var(--radius-md);
  transition:
    color var(--transition-base),
    background-color var(--transition-base);
}
.mobile-link:hover {
  color: var(--color-primary);
  background: var(--color-accent-1);
}

/* ============================================================
  06. HERO SECTION
============================================================ */

.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: var(--navbar-height);
  padding-bottom: var(--space-16);
}


.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}


.code-lines {
  position: absolute;
  inset: 0;
  padding: var(--space-16);
  pointer-events: none;
}

.code-line {
  position: absolute;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-primary);
  white-space: nowrap;

  opacity: 0.15;

  
  transition:
    top 1.5s ease,
    left 1.5s ease,
    opacity 1s ease;
}
.code-line:nth-child(odd)  { text-align: right; opacity: 0.3; }
.code-line:nth-child(even) { text-align: left;  opacity: 0.2; }

@keyframes fadeCodeLine {
  0%, 100% { opacity: 0; transform: translateY(5px); }
  20%, 80%  { opacity: 0.25; transform: translateY(0); }
}


.dot-grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--color-border) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.5;
}


.hero-content {
  position: relative;
  z-index: 1;
  max-width: 820px;
  text-align: center;
  padding: 0 var(--space-6);
}


.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-2);
  margin-bottom: var(--space-8);
  box-shadow: var(--shadow-sm);
}


.badge-dot {
  width: 8px;
  height: 8px;
  background: #22C55E; 
  border-radius: 50%;
  animation: pulseDot 2s ease-in-out infinite;
}

@keyframes pulseDot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%  { transform: scale(1.4); opacity: 0.7; }
}


.hero-name {
  font-family: var(--font-display);
  font-size: clamp(var(--text-5xl), 10vw, var(--text-7xl));
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}


.name-accent {
  color: var(--color-primary);
  position: relative;
  display: inline-block;
}


.name-accent::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-3));
  border-radius: var(--radius-full);
  opacity: 0.4;
}


.hero-title {
  font-size: clamp(var(--text-lg), 3vw, var(--text-2xl));
  font-weight: 500;
  color: var(--color-text-2);
  margin-bottom: var(--space-6);
  min-height: 2em; 
}


.cursor {
  color: var(--color-primary);
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}


.hero-description {
  font-size: var(--text-lg);
  color: var(--color-text-3);
  max-width: 580px;
  margin: 0 auto var(--space-10);
  line-height: 1.75;
}


.hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-16);
}


.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}

.stat-number {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-text);
  line-height: 1;
}


.stat-number::after {
  content: '+';
  color: var(--color-primary);
}

.stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-4);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
}


.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--color-border-2);
}


.scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-4);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  animation: bounceDown 2s ease-in-out infinite;
  transition: color var(--transition-base);
}
.scroll-indicator:hover { color: var(--color-primary); }
.scroll-indicator svg { width: 16px; height: 16px; }

@keyframes bounceDown {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ============================================================
  07. ABOUT SECTION
============================================================ */

.about-section { background-color: var(--color-bg-alt); }


.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--space-16);
  align-items: center;
}


.about-photo-col {
  display: flex;
  justify-content: center;
}


.photo-wrapper {
  position: relative;
  width: fit-content;
}


.profile-photo {
  width: 320px;
  height: 380px;
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: 4px solid var(--color-surface);
  position: relative;
  z-index: 1;
}


.photo-wrapper::before {
  content: '';
  position: absolute;
  top: 16px;
  left: 16px;
  right: -16px;
  bottom: -16px;
  border-radius: var(--radius-xl);
  border: 2px solid var(--color-accent-2);
  z-index: 0;
}


.photo-badge {
  position: absolute;
  bottom: -16px;
  right: -16px;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-primary);
  color: white;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  box-shadow: var(--shadow-lg);
}
.photo-badge svg { width: 16px; height: 16px; }


.about-info-col { padding-left: var(--space-4); }

.about-text {
  font-size: var(--text-base);
  color: var(--color-text-2);
  line-height: 1.8;
  margin-bottom: var(--space-4);
}


.about-details {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin: var(--space-6) 0;
}

.about-details li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-2);
}
.about-details li svg {
  width: 16px;
  height: 16px;
  color: var(--color-primary);
  flex-shrink: 0;
}
.about-details li a:hover { color: var(--color-primary); }


.soft-skills-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-3);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-3);
}

.soft-skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}


.skill-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-2);
  transition:
    background-color var(--transition-base),
    border-color var(--transition-base),
    color var(--transition-base),
    transform var(--transition-spring);
}
.skill-tag:hover {
  background: var(--color-accent-1);
  border-color: var(--color-accent-3);
  color: var(--color-primary);
  transform: translateY(-2px);
}
.skill-tag svg { width: 12px; height: 12px; }

/* ============================================================
  08. EXPERIENCE SECTION
============================================================ */

.experience-section { background: var(--color-bg); }


.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}


.timeline-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-10);
}
.timeline-item:last-child { margin-bottom: 0; }


.timeline-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 4px;
}

.marker-dot {
  width: 14px;
  height: 14px;
  background: var(--color-primary);
  border-radius: 50%;
  border: 3px solid var(--color-surface);
  box-shadow: 0 0 0 3px var(--color-accent-2);
  flex-shrink: 0;
  z-index: 1;
  position: relative;
}


.marker-dot::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.15;
  animation: pulseMarker 2s ease-in-out infinite;
}

@keyframes pulseMarker {
  0%, 100% { transform: scale(1); opacity: 0.15; }
  50%  { transform: scale(1.5); opacity: 0; }
}

.marker-line {
  flex: 1;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-accent-3), transparent);
  margin-top: var(--space-2);
}


.timeline-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
}
.timeline-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent-2);
}


.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
  flex-wrap: wrap;
}

.timeline-company-info {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}


.company-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent-3));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}
.company-icon svg {
  width: 22px;
  height: 22px;
  color: white;
}

.company-name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
}

.job-title {
  font-size: var(--text-sm);
  color: var(--color-text-3);
  font-weight: 500;
  margin-top: 2px;
}


.timeline-date {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-accent-1);
  border: 1px solid var(--color-accent-2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
}
.timeline-date svg { width: 12px; height: 12px; }


.timeline-duties {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.timeline-duties li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-2);
  line-height: 1.6;
}
.timeline-duties li svg {
  width: 14px;
  height: 14px;
  color: var(--color-accent-3);
  margin-top: 3px;
  flex-shrink: 0;
}


.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tech-tag {
  padding: 3px var(--space-3);
  background: var(--color-accent-1);
  border: 1px solid var(--color-accent-2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
}

/* ============================================================
  09. SKILLS SECTION
============================================================ */

.skills-section { background: var(--color-bg-alt); }


.skills-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-16);
}


.skills-group {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
}

.skills-group-title {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}
.skills-group-title svg { width: 20px; height: 20px; color: var(--color-primary); }


.skill-bar {
  margin-bottom: var(--space-5);
}
.skill-bar:last-child { margin-bottom: 0; }

.skill-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-2);
}

.skill-name {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}


.skill-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  font-weight: 800;
  font-family: var(--font-mono);
  color: white;
  letter-spacing: -0.5px;
}


.skill-python { background: #3776AB; }
.skill-vbnet  { background: #5C2D91; }
.skill-js     { background: #F7DF1E; color: #000; }
.skill-sql    { background: #CC2927; }
.skill-git    { background: #F05032; }
.skill-azure  { background: #0078D4; }
.skill-html   { background: #E34F26; }
.skill-css    { background: #1572B6; }

.skill-percent {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-primary);
}


.skill-track {
  height: 6px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}


.skill-fill {
  height: 100%;
  width: 0%;           
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-3));
  border-radius: var(--radius-full);
  transition: width 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}


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

.knowledge-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  text-align: center;
  transition:
    transform var(--transition-spring),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
}
.knowledge-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent-3);
}

.knowledge-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--color-accent-1), var(--color-accent-2));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
  transition: background var(--transition-base);
}
.knowledge-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
}
.knowledge-card:hover .knowledge-icon {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent-3));
}
.knowledge-card:hover .knowledge-icon svg {
  color: white;
}

.knowledge-card h4 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.knowledge-card p {
  font-size: var(--text-xs);
  color: var(--color-text-3);
  line-height: 1.6;
}

/* ============================================================
  10. PROJECTS SECTION
============================================================ */
.image-modal {
  display: none; 
  position: fixed;
  z-index: 9999; 
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.9); 
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}


.modal-content {
  margin: auto;
  display: block;
  max-width: 90%;
  max-height: 85vh; 
  object-fit: contain;
  border-radius: var(--radius-xl, 8px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  cursor: default;
  
  
  animation: zoomEffect 0.3s ease;
}

@keyframes zoomEffect {
  from { transform: scale(0.8); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}


.modal-close {
  position: absolute;
  top: 20px;
  right: 35px;
  color: #ffffff;
  font-size: 40px;
  font-weight: bold;
  cursor: pointer;
  transition: color 0.2s;
}

.modal-close:hover {
  color: var(--color-primary, #5B9BF8);
}

.projects-section { background: var(--color-bg); }


.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}


.project-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
}
.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-accent-3);
}


.project-slider {
  position: relative;
  overflow: hidden;
  
  height: 280px;
  background: var(--color-bg-alt);
}


.slider-track {
  display: flex;
  height: 100%;
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.slider-track img {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  object-fit: contain;
}


.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 36px;
  height: 36px;
  background: rgba(24, 51, 186, 0.775);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition:
    transform var(--transition-spring),
    background var(--transition-base);
  opacity: 0; 
}
.slider-btn svg { width: 16px; height: 16px; color: var(--color-text); }
.slider-prev { left: var(--space-3); }
.slider-next { right: var(--space-3); }
.project-slider:hover .slider-btn { opacity: 1; }
.slider-btn:hover {
  background: var(--color-primary);
  transform: translateY(-50%) scale(1.1);
}
.slider-btn:hover svg { color: white; }


.slider-dots {
  position: absolute;
  bottom: var(--space-3);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-2);
  z-index: 2;
}


.slider-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: background var(--transition-base), transform var(--transition-spring);
}
.slider-dot.active {
  background: white;
  transform: scale(1.4);
}


.project-info { padding: var(--space-6); }

.project-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-3);
}


.project-number {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 800;
  color: var(--color-accent-3);
  letter-spacing: 0.1em;
}

.project-name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
}

.project-description {
  font-size: var(--text-sm);
  color: var(--color-text-3);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}


.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.proj-tag {
  padding: 4px var(--space-3);
  background: var(--color-accent-1);
  border: 1px solid var(--color-accent-2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  transition: background var(--transition-base), color var(--transition-base);
}
.project-card:hover .proj-tag {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* ============================================================
  11. RESUME SECTION
============================================================ */

.resume-section { background: var(--color-bg-alt); }


.resume-card {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 50%, #1E3A8A 100%);
  border-radius: var(--radius-2xl);
  padding: var(--space-16) var(--space-12);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}


.resume-bg-decor {
  position: absolute;
  right: var(--space-16);
  top: 50%;
  transform: translateY(-50%);
  opacity: 0.05;
  pointer-events: none;
}
.resume-bg-decor svg {
  width: 200px;
  height: 200px;
  color: white;
}

.resume-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: var(--space-10);
}

.resume-text { flex: 1; }

.resume-title {
  font-family: var(--font-display);
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  font-weight: 800;
  color: white;
  margin-bottom: var(--space-3);
  line-height: 1.2;
}

.resume-subtitle {
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.7;
  max-width: 500px;
}

/* ============================================================
  12. CONTACT SECTION
============================================================ */

.contact-section { background: var(--color-bg); }


.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-12);
  align-items: start;
}

.contact-info-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}


.contact-details {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}

.contact-detail-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}


.contact-icon {
  width: 44px;
  height: 44px;
  background: var(--color-accent-1);
  border: 1px solid var(--color-accent-2);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--transition-base);
}
.contact-icon svg { width: 18px; height: 18px; color: var(--color-primary); }
.contact-detail-item:hover .contact-icon {
  background: var(--color-primary);
}
.contact-detail-item:hover .contact-icon svg {
  color: white;
}

.detail-label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-4);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 2px;
}

.detail-value {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  transition: color var(--transition-base);
}
a.detail-value:hover { color: var(--color-primary); }


.social-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-3);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-3);
}

.social-icons {
  display: flex;
  gap: var(--space-3);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-text-3);
  transition:
    background var(--transition-base),
    border-color var(--transition-base),
    color var(--transition-base),
    transform var(--transition-spring);
}
.social-link:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
  transform: translateY(-3px);
}
.social-link svg { width: 18px; height: 18px; }


.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-group { display: flex; flex-direction: column; gap: var(--space-2); }

.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-2);
}


.input-wrapper { position: relative; }

.input-icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--color-text-4);
  pointer-events: none;
  transition: color var(--transition-base);
}


.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4) var(--space-3) calc(var(--space-4) * 2 + 16px);
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-family: var(--font-body);
  color: var(--color-text);
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background-color var(--transition-base);
  -webkit-appearance: none;
  appearance: none;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
  background: var(--color-surface);
}

.form-input:focus ~ .input-icon,
.input-wrapper:focus-within .input-icon {
  color: var(--color-primary);
}


.form-textarea {
  padding: var(--space-3) var(--space-4);
  resize: vertical;
  min-height: 120px;
}


.form-input.error { border-color: #EF4444; }


.form-error {
  font-size: var(--text-xs);
  color: #EF4444;
  font-weight: 500;
  min-height: 1em; 
}


.form-status {
  text-align: center;
  font-size: var(--text-sm);
  font-weight: 500;
  padding: var(--space-3);
  border-radius: var(--radius-md);
  display: none; 
}
.form-status.success {
  display: block;
  background: #DCFCE7;
  color: #15803D;
  border: 1px solid #86EFAC;
}
.form-status.error {
  display: block;
  background: #FEE2E2;
  color: #DC2626;
  border: 1px solid #FCA5A5;
}

/* ============================================================
  13. FOOTER
============================================================ */

.site-footer {
  background: var(--color-text); 
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-16) 0 0;
}


.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-10);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: white;
  letter-spacing: -0.01em;
  display: block;
  margin-bottom: var(--space-4);
}

.footer-tagline {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.5);
}



.footer-social-icons {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-social-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-base);
}
.footer-social-link:hover { color: white; }
.footer-social-link svg { width: 16px; height: 16px; }


.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-6) 0;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.footer-bottom p {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.35);
}

.footer-tech {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.25);
}
.footer-tech span { color: #EF4444; }

/* ============================================================
  14. BACK TO TOP
============================================================ */

.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  z-index: 500;
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition:
    opacity var(--transition-base),
    visibility var(--transition-base),
    transform var(--transition-spring),
    background var(--transition-base);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px);
}
.back-to-top svg { width: 18px; height: 18px; }

/* ============================================================
  15. ANIMACIONES DE SCROLL REVEAL
============================================================ */


.reveal-up,
.reveal-left,
.reveal-right {
  opacity: 0;
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}


.reveal-up    { transform: translateY(40px); transition-delay: var(--delay, 0s); }
.reveal-left  { transform: translateX(-40px); }
.reveal-right { transform: translateX(40px); }


.reveal-up.visible,
.reveal-left.visible,
.reveal-right.visible {
  opacity: 1;
  transform: translate(0, 0);
}

/* ============================================================
  16. DARK MODE
============================================================ */

.dark-mode {
  
  --color-bg:          #0F172A;
  --color-bg-alt:      #111827;
  --color-surface:     #1E293B;
  --color-surface-2:   #1A2540;
  --color-border:      #1E3A5F;
  --color-border-2:    #2557A7;

  
  --color-accent-1:    #1A2F5E;
  --color-accent-2:    #1E3A6E;
  --color-accent-3:    #60A5FA;
  --color-primary:     #3B82F6;
  --color-primary-dark:#2563EB;

  
  --color-text:        #F1F5F9;
  --color-text-2:      #CBD5E1;
  --color-text-3:      #94A3B8;
  --color-text-4:      #64748B;

  
  --shadow-sm:   0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md:   0 4px 16px rgba(0, 0, 0, 0.4), 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-lg:   0 8px 32px rgba(0, 0, 0, 0.5), 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-xl:   0 20px 60px rgba(0, 0, 0, 0.6), 0 8px 24px rgba(0, 0, 0, 0.35);
}


.dark-mode #navbar {
  background: rgba(15, 23, 42, 0.85);
}
.dark-mode #navbar.scrolled {
  background: rgba(15, 23, 42, 0.96);
}


.dark-mode .site-footer {
  background: #060d1a;
}

/* ============================================================
  17. RESPONSIVE
============================================================ */


@media (min-width: 768px) {
  .hamburger { display: none; }
  .mobile-menu { display: none !important; }
  .nav-links { display: flex; }
}


@media (max-width: 767px) {
  
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: none; } 

  
  .hero-content { padding: 0 var(--space-4); }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-stats { gap: var(--space-6); }
  .stat-divider { display: none; }

  
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
  .profile-photo { width: 260px; height: 310px; }
  .about-info-col { padding-left: 0; }

  
  .timeline-item { grid-template-columns: 24px 1fr; gap: var(--space-4); }
  .timeline-header { flex-direction: column; }

  
  .skills-wrapper { grid-template-columns: 1fr; }
  .knowledge-cards { grid-template-columns: repeat(2, 1fr); }

  
  .projects-grid { grid-template-columns: 1fr; }
  .projects-grid .project-card:first-child { grid-column: auto; }

  
  .resume-card { padding: var(--space-8); }
  .resume-content { flex-direction: column; text-align: center; }
  .resume-bg-decor { display: none; }

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

  
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }

  
  .back-to-top { bottom: var(--space-4); right: var(--space-4); }

  
  .section { padding: var(--space-16) 0; }
}


@media (max-width: 400px) {
  .container { padding: 0 var(--space-4); }
  .knowledge-cards { grid-template-columns: 1fr; }
  .hero-name { font-size: var(--text-4xl); }
}


@media (min-width: 1280px) {
  .about-grid { grid-template-columns: 1fr 1.6fr; }
}