/* ==========================================================================
   VARIABLES Y SISTEMA DE DISEÑO
   ========================================================================== */
:root {
  /* Paleta Modo Oscuro (Por defecto) */
  --bg-primary: #070b14;
  --bg-secondary: #0d1424;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --bg-alt: #0a0f1d;
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent: #38bdf8;          /* Cyan vibrante */
  --accent-hover: #0ea5e9;
  --accent-glow: rgba(56, 189, 248, 0.2);
  
  --accent-purple: #818cf8;   /* Índigo / Violeta */
  --accent-emerald: #34d399;  /* Verde éxito */
  
  --border: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(56, 189, 248, 0.4);
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px -4px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 20px 40px -8px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 30px rgba(56, 189, 248, 0.15);

  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Modo Claro */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-hover: #f1f5f9;
  --bg-alt: #f1f5f9;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --accent: #0284c7;
  --accent-hover: #0369a1;
  --accent-glow: rgba(2, 132, 199, 0.15);

  --accent-purple: #6366f1;
  --accent-emerald: #059669;

  --border: rgba(0, 0, 0, 0.08);
  --border-focus: rgba(2, 132, 199, 0.4);

  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 35px -10px rgba(0, 0, 0, 0.12);
  --shadow-glow: 0 0 25px rgba(2, 132, 199, 0.12);
}

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

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  background-image: 
    radial-gradient(circle at 15% 10%, rgba(56, 189, 248, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 85% 60%, rgba(129, 140, 248, 0.04) 0%, transparent 40%);
  background-attachment: fixed;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.highlight {
  color: var(--accent);
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

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

/* ==========================================================================
   BARRA DE NAVEGACIÓN
   ========================================================================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: all var(--transition-normal);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
}

.brand-avatar-box {
  position: relative;
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.brand-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 20%;
  border: 2px solid var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
  display: block;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.brand:hover .brand-avatar {
  transform: scale(1.08);
  box-shadow: 0 0 16px var(--accent);
}

.brand-mini-badge {
  position: absolute;
  bottom: -2px;
  right: -3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-purple) 100%);
  color: #fff;
  font-size: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--bg-card);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.4);
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-purple) 100%);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ==========================================================================
   BOTONES
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.35rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #0284c7 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(56, 189, 248, 0.4);
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-focus);
}

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

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

.btn-glass {
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.btn-glass:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 0.95rem 1.85rem;
  font-size: 1.05rem;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-icon:hover {
  color: var(--accent);
  border-color: var(--border-focus);
}

/* ==========================================================================
   SECCIÓN HERO
   ========================================================================== */
.hero-section {
  padding: 4.5rem 0 3.5rem;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.95fr;
  gap: 3rem;
  align-items: center;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.38rem 1rem;
  background: rgba(52, 211, 153, 0.12);
  border: 1px solid rgba(52, 211, 153, 0.25);
  border-radius: var(--radius-full);
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--accent-emerald);
  margin-bottom: 1.25rem;
  white-space: nowrap;
  line-height: 1.35;
}

@media (max-width: 580px) {
  .status-pill {
    white-space: normal;
    border-radius: var(--radius-md);
  }
}

.status-dot {
  width: 8px;
  height: 8px;
  flex-shrink: 0;
  background-color: var(--accent-emerald);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 2.85rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  max-width: 620px;
}

.hero-subtext {
  font-size: 0.95rem;
  color: var(--text-secondary);
  background: var(--bg-card);
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-md);
  border-left: 3px solid var(--accent);
  margin-bottom: 2rem;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 2.5rem;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.metric-card {
  display: flex;
  flex-direction: column;
}

.metric-num {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent);
}

.metric-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.3;
}

/* Tarjeta Hero Lateral */
.profile-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  position: relative;
  transition: transform var(--transition-normal);
}

.profile-card:hover {
  transform: translateY(-4px);
}

.profile-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.profile-avatar {
  width: 88px !important;
  height: 88px !important;
  min-width: 88px !important;
  min-height: 88px !important;
  max-width: 88px !important;
  max-height: 88px !important;
  border-radius: 50% !important;
  border: 3px solid var(--accent);
  overflow: hidden !important;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 22px var(--accent-glow);
  flex-shrink: 0 !important;
  background: var(--bg-card);
  position: relative;
}

.profile-avatar img,
.profile-avatar .avatar-img {
  width: 100% !important;
  height: 100% !important;
  max-width: 100% !important;
  max-height: 100% !important;
  object-fit: cover !important;
  object-position: center 20% !important;
  border-radius: 50% !important;
  display: block !important;
}

.profile-name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
}

.profile-role {
  font-size: 0.88rem;
  color: var(--accent);
  font-weight: 500;
}

.profile-details {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

.detail-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.detail-item i {
  color: var(--accent);
  width: 18px;
}

.profile-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.tag {
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: all var(--transition-fast);
}

.tag:hover {
  background: rgba(14, 165, 233, 0.08);
  border-color: rgba(14, 165, 233, 0.35);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.tag i {
  font-size: 0.95rem;
}

.tag .velneo-tag-logo {
  height: 12px;
  width: auto;
}

.btn-copy-email {
  width: 100%;
  padding: 0.75rem;
  background: var(--bg-secondary);
  border: 1px dashed var(--border-focus);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-copy-email:hover {
  background: var(--accent-glow);
}

/* ==========================================================================
   SECCIONES COMUNES
   ========================================================================== */
.section {
  padding: 5rem 0;
}

.bg-alt {
  background-color: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.85rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Grid de Propuesta de Valor */
#sobre-mi .container {
  max-width: 1440px;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
}

@media (max-width: 1120px) {
  .value-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (max-width: 600px) {
  .value-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
}

.value-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2rem 1.75rem;
  transition: all var(--transition-normal);
}

.value-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-focus);
  box-shadow: var(--shadow-md);
}

.value-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(56, 189, 248, 0.1);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
}

.value-card h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.value-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ==========================================================================
   HABILIDADES / SKILLS
   ========================================================================== */
#habilidades .container {
  max-width: 1440px;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.25rem;
}

@media (max-width: 1100px) {
  .skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
  }
}

.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2.25rem 2rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.skill-category:hover {
  transform: translateY(-3px);
  border-color: var(--border-focus);
  box-shadow: var(--shadow-md);
}

.skill-cat-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-family: var(--font-heading);
  margin-bottom: 1.75rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border);
}

.skill-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.skill-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.35rem;
  flex-wrap: wrap;
}

.skill-name {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.98rem;
}

.skill-name i {
  font-size: 1.15rem;
}

.skill-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent);
  white-space: nowrap;
  flex-shrink: 0;
}

.skill-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

/* ==========================================================================
   PROYECTOS / SHOWCASE
   ========================================================================== */
.project-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.55rem 1.25rem;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 4px 12px var(--accent-glow);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2.25rem;
}

.project-card {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-focus);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.project-media {
  position: relative;
  width: 100%;
  height: 220px;
  overflow: hidden;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}

.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.4s ease;
  display: block;
}

.project-card:hover .project-img {
  transform: scale(1.05);
}

.project-media-overlay {
  position: absolute;
  top: 1rem;
  left: 1rem;
  right: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
  z-index: 2;
}

.badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-full);
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  box-shadow: 0 2px 6px rgba(0,0,0,0.4);
}

.badge-accent {
  background: rgba(15, 23, 42, 0.85);
  color: var(--accent);
  border: 1px solid rgba(56, 189, 248, 0.4);
}

.badge-success {
  background: rgba(15, 23, 42, 0.85);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.project-body {
  padding: 1.75rem;
  flex-grow: 1;
}

.project-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.85rem;
  line-height: 1.3;
}

.project-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.project-features {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 1.5rem;
  background: rgba(255, 255, 255, 0.02);
  padding: 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.feature-item i {
  margin-top: 3px;
  font-size: 0.8rem;
}

.tech-stack-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.tech-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.28rem 0.65rem;
  border-radius: var(--radius-sm);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.tech-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.tech-tag i {
  font-size: 0.95rem;
}

.velneo-tag-logo {
  height: 12px;
  width: auto;
  display: inline-block;
  vertical-align: middle;
}

.velneo-skill-logo {
  height: 16px;
  width: auto;
  display: inline-block;
  vertical-align: middle;
  margin-right: 0.35rem;
}

.project-footer {
  padding: 1.1rem 1.5rem;
  background: rgba(15, 23, 42, 0.45);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* Rejilla de 2 columnas simétricas para tarjetas con dos acciones */
.project-footer--dual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  align-items: center;
}

.project-footer--dual .btn {
  width: 100%;
  min-height: 40px;
  padding: 0.55rem 0.75rem;
  font-size: 0.82rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  white-space: nowrap;
  border-radius: var(--radius-sm);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-sizing: border-box;
}

.project-footer--dual .btn i {
  font-size: 0.85rem;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.project-footer--dual .btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #0284c7 100%);
  color: #ffffff;
  border: 1px solid transparent;
  box-shadow: 0 2px 10px rgba(14, 165, 233, 0.28);
}

.project-footer--dual .btn-primary:hover {
  background: linear-gradient(135deg, #38bdf8 0%, var(--accent) 100%);
  box-shadow: 0 4px 18px var(--accent-glow);
  transform: translateY(-1.5px);
  color: #ffffff;
}

.project-footer--dual .btn-primary:hover i {
  transform: translateY(-1px) translateX(1px);
}

.project-footer--dual .btn-outline {
  background: rgba(14, 165, 233, 0.08);
  border: 1px solid rgba(14, 165, 233, 0.4);
  color: #ffffff;
  backdrop-filter: blur(4px);
}

.project-footer--dual .btn-outline:hover {
  background: rgba(14, 165, 233, 0.2);
  border-color: var(--accent);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(14, 165, 233, 0.22);
  transform: translateY(-1.5px);
}

/* Tarjetas con un botón y etiqueta de estado */
.project-footer:not(.project-footer--dual) .btn {
  min-height: 38px;
  padding: 0.5rem 1rem;
  font-size: 0.82rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border-radius: var(--radius-sm);
  background: rgba(14, 165, 233, 0.08);
  border: 1px solid rgba(14, 165, 233, 0.4);
  color: #ffffff;
  transition: all var(--transition-fast);
}

.project-footer:not(.project-footer--dual) .btn:hover {
  background: rgba(14, 165, 233, 0.2);
  border-color: var(--accent);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(14, 165, 233, 0.22);
  transform: translateY(-1.5px);
}

.project-status-tag {
  font-size: 0.8rem;
  color: #ffffff;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

@media (max-width: 440px) {
  .project-footer--dual {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
}

/* ==========================================================================
   EXPERIENCIA LABORAL
   ========================================================================== */
#experiencia .container {
  max-width: 1440px;
}

.timeline-container {
  position: relative;
  max-width: 1360px;
  margin: 0 auto;
  padding-left: 3.75rem;
}

/* Línea troncal vertical continua */
.timeline-container::before {
  content: '';
  position: absolute;
  top: 30px;
  bottom: 30px;
  left: 23px;
  width: 4px;
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-emerald) 40%, var(--accent-purple) 85%, rgba(129, 140, 248, 0.2) 100%);
  border-radius: 4px;
  box-shadow: 0 0 14px var(--accent-glow);
}

.timeline-item {
  position: relative;
  margin-bottom: 2.75rem;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

/* Marcador / Nodo circular en la línea de tiempo */
.timeline-marker {
  position: absolute;
  left: -3.75rem;
  top: 24px;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.timeline-dot {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 3px solid var(--accent);
  box-shadow: 0 0 16px var(--accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.1rem;
  transition: all var(--transition-normal);
}

.timeline-item:hover .timeline-dot {
  transform: scale(1.1);
  box-shadow: 0 0 24px var(--accent);
}

.timeline-dot.dot-purple {
  border-color: var(--accent-purple);
  color: var(--accent-purple);
  box-shadow: 0 0 16px rgba(129, 140, 248, 0.35);
}

.timeline-item:hover .timeline-dot.dot-purple {
  box-shadow: 0 0 24px var(--accent-purple);
}

.timeline-connector {
  position: absolute;
  left: -1rem;
  top: 47px;
  width: 1rem;
  height: 2px;
  background: var(--accent);
  z-index: 1;
}

.timeline-connector.conn-purple {
  background: var(--accent-purple);
}

.timeline-meta-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: rgba(56, 189, 248, 0.06);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.25rem;
  margin-bottom: 2rem;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.timeline-meta-bar strong {
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .timeline-container {
    padding-left: 2.75rem;
  }
  .timeline-container::before {
    left: 17px;
    width: 3px;
  }
  .timeline-marker {
    left: -2.75rem;
    width: 38px;
    height: 38px;
    top: 22px;
  }
  .timeline-dot {
    width: 36px;
    height: 36px;
    font-size: 0.9rem;
    border-width: 2px;
  }
  .timeline-connector {
    display: none;
  }
}

.experience-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.experience-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-focus);
  box-shadow: var(--shadow-lg);
}

.experience-card.is-suprasoft::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-emerald) 100%);
}

.experience-card.is-bercasoft::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent-purple) 0%, var(--accent) 100%);
}

.experience-badge.badge-suprasoft {
  background: rgba(56, 189, 248, 0.12);
  border-color: rgba(56, 189, 248, 0.3);
  color: var(--accent);
}

.experience-badge.badge-bercasoft {
  background: rgba(129, 140, 248, 0.12);
  border-color: rgba(129, 140, 248, 0.3);
  color: var(--accent-purple);
}

.experience-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.experience-role-group h3 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.experience-company {
  font-size: 0.98rem;
  color: var(--accent);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.experience-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: var(--radius-full);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
}

.experience-summary {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.75rem;
}

.experience-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.15rem;
  margin-bottom: 1.75rem;
}

@media (max-width: 1160px) {
  .experience-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
}

@media (max-width: 640px) {
  .experience-grid {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }
}

.experience-point {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  background: var(--bg-alt);
  padding: 1.05rem 1.15rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  height: 100%;
  transition: all var(--transition-fast);
}

.experience-point:hover {
  background: rgba(14, 165, 233, 0.05);
  border-color: rgba(14, 165, 233, 0.3);
  transform: translateY(-1.5px);
}

.experience-point-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.experience-point-content h4 {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
  line-height: 1.25;
}

.experience-point-content p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

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

/* ==========================================================================
   FORMACIÓN ACADÉMICA & CERTIFICACIONES
   ========================================================================== */
.education-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 1.75rem;
}

@media (max-width: 900px) {
  .education-grid {
    grid-template-columns: 1fr;
  }
}

.education-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.education-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-focus);
  box-shadow: var(--shadow-md);
}

.education-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-purple) 100%);
}

.education-card-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}

.education-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.education-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  background: rgba(56, 189, 248, 0.1);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.35rem;
}

.education-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.education-desc {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-top: auto;
}

/* Barra de Idiomas & Datos Prácticos */
.languages-bar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.lang-group {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.lang-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.lang-item strong {
  color: var(--text-primary);
}

.lang-item span {
  color: var(--text-muted);
}

/* ==========================================================================
   CONTACTO
   ========================================================================== */
#contacto .container {
  max-width: 1440px;
}

.contact-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2.5rem;
  text-align: center;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.contact-header {
  max-width: 750px;
  margin: 0 auto 3rem;
}

.contact-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  max-width: 100%;
  margin: 0 auto 3rem;
}

@media (max-width: 1120px) {
  .contact-cards-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }
}

@media (max-width: 600px) {
  .contact-cards-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

.contact-item-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.15rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 0.75rem;
  transition: all var(--transition-fast);
  height: 100%;
}

.contact-item-card:hover {
  border-color: var(--border-focus);
  transform: translateY(-3px);
}

.contact-item-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(56, 189, 248, 0.1);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.contact-item-card h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
}

.contact-item-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   MODAL
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.modal-backdrop.open {
  display: flex;
  opacity: 1;
}

.modal-dialog {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 700px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: modal-slide-in 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modal-slide-in {
  from { transform: translateY(20px) scale(0.96); opacity: 0; }
  to { transform: translateY(0) scale(1); opacity: 1; }
}

.modal-header {
  padding: 1.25rem 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}

.modal-header h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.8rem;
  cursor: pointer;
  line-height: 1;
}

.modal-body {
  padding: 1.75rem;
  max-height: 70vh;
  overflow-y: auto;
}

.modal-footer {
  padding: 1rem 1.75rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

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

/* ==========================================================================
   RESPONSIVE DESIGN (TABLETS Y MÓVILES)
   ========================================================================== */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .hero-title {
    font-size: 2.3rem;
  }
  .nav-links {
    display: none; /* Simplificado para móviles */
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 1.9rem;
  }
  .hero-metrics {
    grid-template-columns: 1fr;
  }
  .section-title {
    font-size: 1.75rem;
  }
  .contact-box {
    padding: 2rem 1.25rem;
  }
}