/* =========================
   VARIABLES & RESET
   ========================= */
:root {
  /* Paleta de colores personalizada */
  --primary: #dfc096;
  --primary-light: #f1e0ca;
  --primary-dark: #c9a870;
  --accent: #e8b77d;

  /* Colores de fondo (DARK MODE - default) */
  --bg-primary: #0a0a0b;
  --bg-secondary: #111113;
  --bg-card: #1a1a1d;
  --bg-elevated: #212125;

  /* Colores de texto (DARK MODE - default) */
  --text-primary: #f5f5f7;
  --text-secondary: #a8a8b3;
  --text-muted: #6e6e78;

  /* Bordes y divisores (DARK MODE - default) */
  --border-color: #2a2a2f;
  --border-light: #3a3a40;

  /* Sombras */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 32px rgba(223, 192, 150, 0.15);

  /* Radios */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s ease;
}

/* LIGHT MODE */
[data-theme="light"] {
  /* Colores personalizados más oscuros para mejor contraste */
  --primary: #b8905d;
  --primary-light: #c9a870;
  --primary-dark: #9a7548;
  --accent: #c99558;

  /* Colores de fondo (LIGHT MODE) */
  --bg-primary: #f8f9fa;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-elevated: #f1f3f5;

  /* Colores de texto (LIGHT MODE) */
  --text-primary: #1a1a1d;
  --text-secondary: #495057;
  --text-muted: #6c757d;

  /* Bordes y divisores (LIGHT MODE) */
  --border-color: #dee2e6;
  --border-light: #e9ecef;

  /* Sombras (LIGHT MODE) */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
  --shadow-glow: 0 0 32px rgba(184, 144, 93, 0.25);
}

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

/* Selección de texto personalizada */
::selection {
  background: rgba(223, 192, 150, 0.3);
  color: var(--text-primary);
}

::-moz-selection {
  background: rgba(223, 192, 150, 0.3);
  color: var(--text-primary);
}

[data-theme="light"] ::selection {
  background: rgba(184, 144, 93, 0.35);
  color: var(--text-primary);
}

[data-theme="light"] ::-moz-selection {
  background: rgba(184, 144, 93, 0.35);
  color: var(--text-primary);
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Fondo animado con gradientes */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background:
    radial-gradient(circle at 20% 20%, rgba(223, 192, 150, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(241, 224, 202, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(223, 192, 150, 0.04) 0%, transparent 70%);
  animation: backgroundShift 20s ease infinite;
}

@keyframes backgroundShift {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.8; }
}

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

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

.container {
  width: min(1200px, 90%);
  margin: 0 auto;
}

/* =========================
   NAVBAR
   ========================= */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 11, 0.8);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

[data-theme="light"] .navbar {
  background: rgba(248, 249, 250, 0.8);
  backdrop-filter: blur(20px) saturate(180%);
}

.navbar.scrolled {
  background: rgba(10, 10, 11, 0.95);
  box-shadow: var(--shadow-md);
}

[data-theme="light"] .navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-md);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  transition: transform var(--transition-fast);
}

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

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

.brand-dot {
  color: var(--primary);
  font-size: 2rem;
  line-height: 0.5;
}

/* Menú hamburguesa moderno */
.menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Navegación mobile */
#site-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 5rem 2rem 2rem;
  transition: right var(--transition-slow);
  box-shadow: var(--shadow-xl);
}

#site-nav.open {
  right: 0;
}

#site-nav a {
  color: var(--text-secondary);
  padding: 1rem 0;
  font-size: 1.125rem;
  font-weight: 500;
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-base);
  position: relative;
}

#site-nav a::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width var(--transition-base);
}

#site-nav a:hover {
  color: var(--primary);
  padding-left: 1rem;
}

#site-nav a:hover::before {
  width: 1.5rem;
}

/* Nav buttons container */
.nav-buttons {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
}

/* Theme toggle button */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
}

.theme-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: rotate(15deg);
}

.sun-icon,
.moon-icon {
  position: absolute;
  transition: all var(--transition-base);
}

.sun-icon {
  opacity: 0;
  transform: rotate(90deg) scale(0);
}

.moon-icon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

[data-theme="light"] .sun-icon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

[data-theme="light"] .moon-icon {
  opacity: 0;
  transform: rotate(-90deg) scale(0);
}

/* Language toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  background: none;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
}

.lang-toggle:hover {
  border-color: var(--primary);
}

.lang-option {
  color: var(--text-muted);
  transition: color var(--transition-fast);
  cursor: pointer;
}

.lang-option.active {
  color: var(--primary);
}

.lang-option:hover {
  color: var(--primary);
}

.lang-separator {
  color: var(--border-color);
}

/* =========================
   BUTTONS
   ========================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9375rem;
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.btn:hover::before {
  transform: translateX(100%);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: var(--bg-primary);
  box-shadow: 0 4px 16px rgba(223, 192, 150, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(223, 192, 150, 0.4);
}

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

.btn-secondary:hover {
  background: rgba(223, 192, 150, 0.1);
  transform: translateY(-2px);
}

.btn-large {
  padding: 1.125rem 2.25rem;
  font-size: 1.0625rem;
}

.btn:active {
  transform: translateY(0);
}

/* =========================
   HERO SECTION
   ========================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 6rem 0 4rem;
  position: relative;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-text {
  animation: fadeInUp 0.8s ease;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(223, 192, 150, 0.1);
  border: 1px solid rgba(223, 192, 150, 0.2);
  border-radius: 999px;
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  animation: pulse 2s ease infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

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

.hero-subtitle {
  font-size: clamp(1.125rem, 3vw, 1.5rem);
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-weight: 500;
}

.hero-description {
  font-size: 1.0625rem;
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 2rem;
  line-height: 1.7;
}

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

/* Blob animation para la imagen de perfil */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInUp 0.8s ease 0.2s backwards;
}

.blob-container {
  position: relative;
  width: 100%;
  max-width: 400px;
  aspect-ratio: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.blob {
  position: absolute;
  border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
  filter: blur(40px);
  opacity: 0.6;
  animation: blobAnimation 8s ease-in-out infinite;
}

.blob-1 {
  width: 80%;
  height: 80%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  animation-delay: 0s;
}

.blob-2 {
  width: 70%;
  height: 70%;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
  animation-delay: -2s;
}

.blob-3 {
  width: 60%;
  height: 60%;
  background: linear-gradient(135deg, var(--accent) 0%, var(--primary-dark) 100%);
  animation-delay: -4s;
}

@keyframes blobAnimation {
  0%, 100% {
    border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
    transform: rotate(0deg) scale(1);
  }
  25% {
    border-radius: 60% 40% 30% 70% / 50% 60% 40% 50%;
    transform: rotate(90deg) scale(1.05);
  }
  50% {
    border-radius: 70% 30% 50% 50% / 60% 40% 50% 40%;
    transform: rotate(180deg) scale(0.95);
  }
  75% {
    border-radius: 30% 70% 40% 60% / 50% 50% 60% 40%;
    transform: rotate(270deg) scale(1.05);
  }
}

.profile-image {
  position: relative;
  z-index: 10;
  width: 85%;
  aspect-ratio: 1;
  border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
  overflow: hidden;
  border: 3px solid rgba(223, 192, 150, 0.3);
  box-shadow: var(--shadow-glow);
  animation: profileAnimation 10s ease-in-out infinite;
}

.profile-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@keyframes profileAnimation {
  0%, 100% {
    border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
  }
  50% {
    border-radius: 60% 40% 30% 70% / 50% 40% 60% 50%;
  }
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  animation: fadeInUpCentered 1s ease 1s backwards;
  opacity: 1;
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  pointer-events: none;
}

.scroll-indicator.hidden {
  opacity: 0;
  transform: translateX(-50%) translateY(20px);
}

.scroll-mouse {
  width: 24px;
  height: 36px;
  border: 2px solid var(--primary);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}

.scroll-wheel {
  width: 3px;
  height: 8px;
  background: var(--primary);
  border-radius: 2px;
  animation: scrollAnimation 2s ease infinite;
}

@keyframes scrollAnimation {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(12px); opacity: 0; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUpCentered {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* =========================
   SECTIONS
   ========================= */
.section {
  padding: var(--space-xl) 0;
  position: relative;
}

.section-header {
  margin-bottom: var(--space-lg);
}

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

.section-tag {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: rgba(223, 192, 150, 0.1);
  border: 1px solid rgba(223, 192, 150, 0.2);
  border-radius: var(--radius-md);
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
}

.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

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

/* =========================
   CARDS
   ========================= */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(223, 192, 150, 0.05) 0%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover::before {
  opacity: 1;
}

.card:hover {
  border-color: rgba(223, 192, 150, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 48px;
  height: 48px;
  background: rgba(223, 192, 150, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  color: var(--primary);
}

.card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.card p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.7;
}

.card p:last-child {
  margin-bottom: 0;
}

.muted {
  color: var(--text-muted);
  font-size: 0.9375rem;
}

/* =========================
   ABOUT SECTION
   ========================= */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.tech-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.tech-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.tech-bullet {
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
  flex-shrink: 0;
}

/* =========================
   GITHUB ACTIVITY SECTION
   ========================= */
.github-content {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.github-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: all var(--transition-base);
}

.stat-card:hover {
  border-color: rgba(223, 192, 150, 0.3);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-icon {
  width: 48px;
  height: 48px;
  background: rgba(223, 192, 150, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

.stat-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  font-family: 'Space Grotesk', sans-serif;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.github-repos h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.repos-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

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

.repo-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(223, 192, 150, 0.03) 0%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.repo-card:hover::before {
  opacity: 1;
}

.repo-card:hover {
  border-color: rgba(223, 192, 150, 0.3);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.repo-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.repo-name {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.repo-name:hover {
  color: var(--primary);
}

.repo-name svg {
  width: 20px;
  height: 20px;
}

.repo-stats {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.repo-stat {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.repo-stat svg {
  width: 16px;
  height: 16px;
}

.repo-description {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
  flex: 1;
}

.repo-language {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.repo-card .btn-sm {
  align-self: flex-start;
  margin-top: auto;
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}

.repo-card .btn-sm svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.repo-card .btn-sm:hover svg {
  transform: translate(2px, -2px);
}

.language-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
}

.loading-spinner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  gap: 1rem;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.loading-spinner p {
  color: var(--text-muted);
  font-size: 0.9375rem;
}

/* =========================
   SKILLS SECTION (INTERACTIVE)
   ========================= */
.skills-interactive-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.skill-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: all var(--transition-base);
  position: relative;
  cursor: help;
}

.skill-item::before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 105%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--bg-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
  white-space: nowrap;
  max-width: 300px;
  white-space: normal;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-base);
  z-index: 100;
  box-shadow: var(--shadow-lg);
}

.skill-item::after {
  content: '';
  position: absolute;
  bottom: 105%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  border: 8px solid transparent;
  border-top-color: var(--border-light);
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-base);
  z-index: 99;
}

.skill-item:hover::before,
.skill-item:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.skill-item:hover {
  border-color: rgba(223, 192, 150, 0.3);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.skill-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.skill-name {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
}

.skill-name svg {
  color: var(--primary);
  flex-shrink: 0;
}

.skill-level {
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.skill-level[data-level="basic"] {
  background: rgba(100, 200, 255, 0.1);
  border: 1px solid rgba(100, 200, 255, 0.3);
  color: rgb(100, 200, 255);
}

.skill-level[data-level="intermediate"] {
  background: rgba(223, 192, 150, 0.1);
  border: 1px solid rgba(223, 192, 150, 0.3);
  color: var(--primary);
}

.skill-level[data-level="advanced"] {
  background: rgba(100, 255, 150, 0.1);
  border: 1px solid rgba(100, 255, 150, 0.3);
  color: rgb(100, 255, 150);
}

.skill-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-secondary);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 0.75rem;
  position: relative;
}

.skill-progress {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-dark), var(--primary), var(--accent));
  border-radius: 999px;
  transition: width 1s ease;
  width: 0;
  box-shadow: 0 0 12px rgba(223, 192, 150, 0.4);
}

.skill-item.visible .skill-progress {
  width: attr(data-progress);
}

.skill-context {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}

/* Animación de barras de progreso */
@keyframes fillBar {
  from { width: 0; }
}

/* =========================
   PROJECTS SECTION
   ========================= */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base), transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 0;
  position: relative;
  height: fit-content;
  cursor: pointer;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--primary-dark), var(--primary), var(--accent));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.project-card:hover::before {
  opacity: 1;
}

.project-card:hover {
  border-color: rgba(223, 192, 150, 0.4);
  transform: translateX(4px);
  box-shadow: var(--shadow-lg);
}

.project-media {
  position: relative;
  background: linear-gradient(135deg, var(--bg-elevated) 0%, var(--bg-secondary) 100%);
  overflow: hidden;
  border-radius: 0;
  box-shadow: none;
  height: 100%;
  min-height: 200px;
}

.project-media::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--border-color), transparent);
}

.gallery {
  display: flex;
  transition: transform var(--transition-slow);
  position: relative;
  height: 100%;
}

.gallery img {
  width: 100%;
  height: 100%;
  flex: 0 0 100%;
  object-fit: cover;
  background: var(--bg-secondary);
  filter: brightness(0.95) contrast(1.05);
  transition: all var(--transition-base);
}

.project-card:hover .gallery img {
  filter: brightness(1) contrast(1.1);
  box-shadow: var(--shadow-glow);
}

.gallery-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  background: rgba(223, 192, 150, 0.9);
  border: none;
  border-radius: 50%;
  color: var(--bg-primary);
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  z-index: 15;
  backdrop-filter: blur(10px);
}

.gallery-btn:hover {
  background: var(--primary);
  transform: translateY(-50%) scale(1.1);
}

.gallery-btn.prev {
  left: 1rem;
}

.gallery-btn.next {
  right: 1rem;
}

.project-info {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.project-info h3 {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0;
  line-height: 1.3;
}

.project-info p {
  color: var(--text-secondary);
  margin-bottom: 0;
  line-height: 1.6;
  font-size: 0.9375rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-info .tech-list {
  margin-bottom: 0;
}

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0;
}

.stack-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 0.875rem;
  background: rgba(223, 192, 150, 0.08);
  border: 1px solid rgba(223, 192, 150, 0.2);
  border-radius: var(--radius-md);
  color: var(--primary);
  font-size: 0.8125rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.stack-badge:hover {
  background: rgba(223, 192, 150, 0.15);
  border-color: rgba(223, 192, 150, 0.4);
  transform: translateY(-2px);
}

/* Ocultar tech-list en vista de lista por defecto */
.projects-grid:not(.grid-view) .tech-list {
  display: none;
}

.project-info .links {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: auto;
  position: relative;
  z-index: 10;
}

.project-info .links a {
  position: relative;
  z-index: 11;
}

.project-tag {
  display: inline-block;
  padding: 0.375rem 0.75rem;
  background: rgba(223, 192, 150, 0.1);
  border: 1px solid rgba(223, 192, 150, 0.2);
  border-radius: var(--radius-sm);
  color: var(--primary);
  font-size: 0.8125rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

/* View Toggle */
.view-toggle {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 3rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.5rem;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}

.view-toggle::before {
  content: '';
  position: absolute;
  left: var(--slider-left, 0);
  top: var(--slider-top, 0);
  width: var(--slider-width, 0);
  height: var(--slider-height, 0);
  background: rgba(223, 192, 150, 0.15);
  border-radius: var(--radius-md);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  z-index: 0;
}

.view-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  z-index: 1;
}

.view-btn:hover {
  background: transparent;
  color: var(--text-secondary);
}

.view-btn.active {
  background: transparent;
  color: var(--primary);
}

.view-btn svg {
  transition: transform var(--transition-fast);
}

.view-btn:hover svg {
  transform: scale(1.1);
}

/* Grid View - Cards compactas */
.projects-grid.grid-view {
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.projects-grid.grid-view .project-card {
  cursor: pointer;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.projects-grid.grid-view .project-media {
  border-radius: var(--radius-lg);
  aspect-ratio: 16/9;
}

.projects-grid.grid-view .project-info {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.projects-grid.grid-view .project-info h3 {
  font-size: 1.25rem;
  margin-bottom: 0;
}

.projects-grid.grid-view .project-info p {
  display: none;
}

.projects-grid.grid-view .project-stack {
  margin-bottom: 0;
}

.projects-grid.grid-view .tech-list,
.projects-grid.grid-view .links {
  display: none;
}

.projects-grid.grid-view .gallery-btn {
  display: none;
}

/* Animaciones de transición entre vistas */
@keyframes fadeInGrid {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes fadeInList {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.projects-grid.grid-view .project-card {
  animation: fadeInGrid 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.projects-grid:not(.grid-view) .project-card {
  animation: fadeInList 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* Modal */
.project-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.project-modal.active {
  display: flex;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  animation: fadeIn 0.3s ease;
}

.modal-content {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  animation: slideUp 0.3s ease;
  z-index: 1;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 40px;
  height: 40px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  z-index: 2;
}

.modal-close:hover {
  background: var(--bg-elevated);
  color: var(--primary);
  transform: rotate(90deg);
}

.modal-body {
  padding: 2rem;
}

.modal-body .project-card {
  border: none;
  background: transparent;
  box-shadow: none;
  grid-template-columns: 1fr;
  cursor: default;
}

.modal-body .project-card:hover {
  transform: none;
  border-color: var(--border-color);
}

.modal-body .project-card::before {
  display: none;
}

.modal-body .project-media {
  border-radius: var(--radius-lg);
  max-height: 400px;
}

.modal-body .project-info {
  padding: 2rem;
}

.modal-body .project-info h3 {
  font-size: 1.75rem;
}

.modal-body .project-info p {
  display: block !important;
  -webkit-line-clamp: unset;
  -webkit-box-orient: unset;
  overflow: visible;
  margin-bottom: 1.5rem;
}

.modal-body .tech-list {
  display: block !important;
  margin-bottom: 1.5rem;
}

.modal-body .project-info .links {
  margin-top: auto;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =========================
   CONTACT SECTION
   ========================= */
.contact-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 3rem 2rem;
}

/* Formulario de contacto */
.contact-form-container {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hidden {
  display: none;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9375rem;
  transition: all var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(223, 192, 150, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.btn-submit {
  width: 100%;
  justify-content: center;
  cursor: pointer;
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-message {
  padding: 1rem;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  text-align: center;
  display: none;
}

.form-message.show {
  display: block;
}

.form-message.success {
  background: rgba(100, 255, 150, 0.1);
  border: 1px solid rgba(100, 255, 150, 0.3);
  color: rgb(100, 255, 150);
}

.form-message.error {
  background: rgba(255, 100, 100, 0.1);
  border: 1px solid rgba(255, 100, 100, 0.3);
  color: rgb(255, 100, 100);
}

.contact-cta-alt {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.contact-cta-alt p {
  color: var(--text-muted);
  font-size: 0.9375rem;
  margin: 0;
}

.contact-description {
  color: var(--text-secondary);
  font-size: 1.0625rem;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-icon {
  width: 48px;
  height: 48px;
  background: rgba(223, 192, 150, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--primary);
}

.contact-item h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.contact-item a {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.contact-item a:hover {
  color: var(--primary);
}

.contact-cta {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
}

/* Responsive para botones de contacto */
@media (min-width: 500px) {
  .contact-cta {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

@media (min-width: 500px) and (max-width: 767px) {
  .contact-cta .btn-large {
    flex: 1 1 calc(50% - 0.5rem);
    min-width: 0;
    justify-content: center;
    padding: 0.875rem 1.25rem;
    font-size: 0.875rem;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .contact-cta {
    flex-direction: row;
  }

  .contact-cta .btn-large {
    flex: 1;
    min-width: 0;
    justify-content: center;
    padding: 1rem 1.5rem;
    font-size: 0.9375rem;
  }
}

/* =========================
   FOOTER
   ========================= */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 3rem 0 2rem;
}

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

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9375rem;
  margin-top: 0.5rem;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 2rem;
}

.footer-column h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.footer-column a {
  display: block;
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.875rem;
}

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

/* Mobile: Vista de lista en columna */
@media (max-width: 767px) {
  /* Ocultar toggle de vistas en mobile */
  .view-toggle {
    display: none;
  }

  /* Proyectos en vista de lista (mobile) */
  .projects-grid:not(.grid-view) .project-card {
    grid-template-columns: 1fr;
  }

  .projects-grid:not(.grid-view) .project-media {
    min-height: 180px;
    max-height: 220px;
  }

  .projects-grid:not(.grid-view) .gallery img {
    object-fit: contain;
    background: var(--bg-elevated);
  }

  .projects-grid:not(.grid-view) .project-media::after {
    width: 100%;
    height: 1px;
    top: auto;
    bottom: 0;
    right: 0;
    left: 0;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
  }

  .projects-grid:not(.grid-view) .gallery-btn {
    width: 32px;
    height: 32px;
    font-size: 1.25rem;
  }

  .projects-grid:not(.grid-view) .gallery-btn.prev {
    left: 0.5rem;
  }

  .projects-grid:not(.grid-view) .gallery-btn.next {
    right: 0.5rem;
  }

  /* Modal en mobile: sin imágenes */
  .modal-body {
    padding: 1rem;
  }

  .modal-body .project-media {
    display: none;
  }

  .modal-body .project-info {
    padding: 1.5rem;
  }

  .modal-body .project-info h3 {
    font-size: 1.5rem;
  }

  .modal-content {
    max-height: 85vh;
  }

  /* Vista grid en mobile */
  .projects-grid.grid-view {
    grid-template-columns: 1fr;
  }

  .projects-grid.grid-view .project-media {
    aspect-ratio: 16/9;
    max-height: 200px;
  }

  .projects-grid.grid-view .gallery img {
    object-fit: contain;
    background: var(--bg-elevated);
  }
}

@media (min-width: 768px) {
  .container {
    width: min(1200px, 85%);
  }

  .menu-toggle {
    display: none;
  }

  #site-nav {
    position: static;
    width: auto;
    height: auto;
    background: transparent;
    border: none;
    flex-direction: row;
    padding: 0;
    box-shadow: none;
  }

  #site-nav a {
    padding: 0.5rem 1rem;
    font-size: 0.9375rem;
    border: none;
    position: relative;
  }

  #site-nav a::before {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition-base);
  }

  #site-nav a:hover {
    color: var(--primary);
    padding-left: 1rem;
  }

  #site-nav a:hover::before {
    width: 80%;
  }

  .nav-buttons {
    margin-top: 0;
    margin-left: 1rem;
  }

  .hero-inner {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
  }

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

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

  .repos-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-content {
    grid-template-columns: 1fr;
    padding: 3rem 2rem;
  }

  .contact-cta {
    align-items: stretch;
  }

  .footer-content {
    grid-template-columns: 1.5fr 1fr;
  }
}

@media (min-width: 1024px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }

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

  .contact-content {
    grid-template-columns: 1fr;
    padding: 4rem 3rem;
  }

  .contact-cta {
    flex-direction: row;
    justify-content: center;
    max-width: 600px;
    margin: 0 auto;
  }

  .contact-cta .btn-large {
    flex: 0 1 auto;
  }
}

@media (min-width: 1200px) {
  .contact-content {
    grid-template-columns: 1.5fr 1fr;
    padding: 4rem;
  }

  .contact-cta {
    flex-direction: column;
    align-items: stretch;
    max-width: none;
    margin: 0;
  }
}

@media (min-width: 1280px) {
  .container {
    width: min(1200px, 80%);
  }
}

/* Animaciones de entrada con scroll */
@media (prefers-reduced-motion: no-preference) {
  .fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }

  .fade-in.visible {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Accesibilidad */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

/* Scrollbar personalizada */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary-dark), var(--primary));
  border-radius: 5px;
  transition: background 0.3s ease, opacity 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* Estilo mejorado con fade out suave para navegadores modernos */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--primary) var(--bg-secondary);
}

html {
  scrollbar-gutter: stable;
}

@supports selector(::-webkit-scrollbar) {
  body::-webkit-scrollbar-thumb {
    transition: opacity 0.5s ease-out 0.3s;
  }
}