@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

/* --- variables del sistema de diseño --- */
:root {
  --bg-dark: #080710;
  --bg-card: rgba(18, 16, 36, 0.6);
  --bg-card-hover: rgba(26, 23, 52, 0.85);
  --bg-panel: #0d0b1a;
  --bg-input: #151329;
  
  --accent-purple: #8b5cf6;
  --accent-purple-hover: #a78bfa;
  --accent-indigo: #6366f1;
  --accent-violet: #7c3aed;
  --accent-pink: #c084fc;
  
  --text-white: #f8fafc;
  --text-normal: #cbd5e1;
  --text-muted: #64748b;
  
  --border-color: rgba(139, 92, 246, 0.12);
  --border-hover: rgba(139, 92, 246, 0.3);
  --border-focus: rgba(99, 102, 241, 0.6);
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-title: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  
  --shadow-glow: 0 0 30px rgba(139, 92, 246, 0.15);
  --shadow-glow-strong: 0 0 40px rgba(139, 92, 246, 0.3);
  --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  
  --transition-smooth: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.15s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-normal);
  font-family: var(--font-sans);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* --- efectos de fondo brillante (glowing circles) --- */
.bg-glow-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -10;
  overflow: hidden;
  pointer-events: none;
}

/* --- canvas de partículas de fondo --- */
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -9;
  pointer-events: none;
}

.bg-glow-1 {
  position: absolute;
  top: -10%;
  right: -5%;
  width: 60vw;
  height: 60vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.12) 0%, rgba(99, 102, 241, 0.03) 70%, transparent 100%);
  filter: blur(80px);
}

.bg-glow-2 {
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 70vw;
  height: 70vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, rgba(192, 132, 252, 0.02) 60%, transparent 100%);
  filter: blur(100px);
}

.bg-glow-3 {
  position: absolute;
  top: 40%;
  left: 25%;
  width: 40vw;
  height: 40vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.06) 0%, transparent 80%);
  filter: blur(90px);
}

/* --- scrollbar --- */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
  background: #1e1b38;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-purple);
}

/* --- tipografia global --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-title);
  color: var(--text-white);
  font-weight: 700;
  letter-spacing: -0.02em;
}

p {
  line-height: 1.6;
}

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

/* --- contenedor comun --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* --- botones de accion --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-family: var(--font-title);
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-indigo));
  color: var(--text-white);
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(139, 92, 246, 0.4);
  background: linear-gradient(135deg, #9b70ff, #7376ff);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-white);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.btn-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  background: rgba(255, 255, 255, 0.03);
  border: 1.5px solid var(--accent-purple);
  color: var(--text-white);
  overflow: hidden;
}

.btn-icon:hover {
  background: rgba(139, 92, 246, 0.15);
  border-color: var(--accent-purple-hover);
  transform: translateY(-2px);
  box-shadow: 0 0 10px rgba(139, 92, 246, 0.3);
}

.btn-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --- header / navbar --- */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  z-index: 100;
  transition: var(--transition-smooth);
}

header.scrolled {
  height: 70px;
  background: rgba(8, 7, 16, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 1.5rem;
  background: linear-gradient(135deg, var(--text-white) 30%, var(--accent-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  color: var(--accent-purple);
  font-weight: 400;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-normal);
  position: relative;
  padding: 0.25rem 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-indigo));
  transition: var(--transition-smooth);
  border-radius: 2px;
}

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

.nav-links a:hover::after {
  width: 100%;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-white);
  font-size: 1.5rem;
  cursor: pointer;
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 100px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.5rem;
}

.badge {
  background: rgba(139, 92, 246, 0.08);
  border: 1px solid rgba(139, 92, 246, 0.2);
  color: var(--accent-pink);
  padding: 0.4rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: #34d399;
  border-radius: 50%;
  box-shadow: 0 0 10px #34d399;
  animation: pulse-green 2s infinite;
}

@keyframes pulse-green {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(52, 211, 153, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

.hero h1 {
  font-size: 3.8rem;
  line-height: 1.1;
  background: linear-gradient(135deg, var(--text-white) 40%, var(--accent-pink) 70%, var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.8rem;
  font-family: var(--font-title);
  color: var(--text-normal);
  font-weight: 500;
  min-height: 40px; /* para evitar saltos del text-typing */
}

.hero-subtitle span {
  color: var(--accent-purple-hover);
  border-right: 2px solid var(--accent-purple);
  animation: blink 0.75s step-end infinite;
  padding-right: 4px;
}

@keyframes blink {
  from, to { border-color: transparent }
  50% { border-color: var(--accent-purple); }
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 1rem;
}

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

.hero-socials {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-visual-mesh {
  position: absolute;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 60%);
  animation: float 6s ease-in-out infinite alternate;
}

.profile-container {
  width: 320px;
  height: 320px;
  border-radius: 50%;
  padding: 12px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.3), rgba(99, 102, 241, 0.1));
  box-shadow: var(--shadow-glow);
  position: relative;
  z-index: 2;
  animation: float 8s ease-in-out infinite;
}

.profile-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--bg-panel);
  overflow: hidden;
  border: 4px solid var(--bg-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}

.profile-inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.profile-inner:hover img {
  transform: scale(1.08);
}

@keyframes float {
  0% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-15px) rotate(2deg); }
  100% { transform: translateY(0px) rotate(0deg); }
}

/* --- Seccion Habilidades --- */
.section {
  padding: 8rem 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.section-title-tag {
  color: var(--accent-purple);
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  font-weight: 700;
}

.section-header h2 {
  font-size: 2.5rem;
  position: relative;
  display: inline-block;
  background: linear-gradient(135deg, var(--text-white) 60%, var(--accent-indigo));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* =====================================================
   ÁRBOL DE HABILIDADES RPG — SOBRE MÍ
   ===================================================== */

.rpg-tree-container {
  position: relative;
  width: 100%;
  height: 520px;
  margin: 2rem 0 0;
  overflow: hidden;
}

.rpg-tree-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* --- Nodos --- */
.rpg-node {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.45rem;
  cursor: pointer;
  z-index: 2;
  transform: translate(-50%, -50%);
  transition: filter 0.3s ease, transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  user-select: none;
}

.rpg-node:hover {
  transform: translate(-50%, -50%) scale(1.12);
  filter: drop-shadow(0 0 18px rgba(139,92,246,0.6));
}

.rpg-node.active {
  filter: drop-shadow(0 0 22px rgba(139,92,246,0.9));
  transform: translate(-50%, -50%) scale(1.1);
}

/* Círculo del nodo */
.rpg-node-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid rgba(139,92,246,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  position: relative;
  z-index: 1;
  transition: border-color 0.3s, background 0.3s;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.05);
}

.rpg-node-root .rpg-node-icon {
  width: 80px;
  height: 80px;
  font-size: 2rem;
  border-color: var(--accent-purple);
  background: linear-gradient(135deg, rgba(139,92,246,0.2), rgba(99,102,241,0.1));
}

.rpg-node.active .rpg-node-icon {
  border-color: var(--accent-purple);
  background: linear-gradient(135deg, rgba(139,92,246,0.25), rgba(99,102,241,0.12));
}

.rpg-node-sub .rpg-node-icon {
  width: 52px;
  height: 52px;
  font-size: 1.25rem;
  border-color: rgba(99,102,241,0.3);
}

/* Halo pulsante */
.rpg-node-glow {
  position: absolute;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: 2px solid rgba(139,92,246,0.4);
  animation: rpg-pulse 2.5s ease-in-out infinite;
  z-index: 0;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.rpg-node-root .rpg-node-glow {
  width: 90px;
  height: 90px;
}

.rpg-node-sub .rpg-node-glow {
  width: 60px;
  height: 60px;
  animation-delay: 1s;
}

@keyframes rpg-pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
  50%       { transform: translate(-50%, -50%) scale(1.35); opacity: 0; }
}

/* Label del nodo */
.rpg-node-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  text-transform: uppercase;
  text-align: center;
  white-space: nowrap;
  transition: color 0.3s;
  background: rgba(7,6,16,0.7);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
}

.rpg-node.active .rpg-node-label,
.rpg-node:hover .rpg-node-label {
  color: var(--accent-pink);
}

/* --- Panel de Detalle --- */
.rpg-detail-panel {
  background: var(--bg-card);
  border: 1px solid rgba(139,92,246,0.25);
  border-radius: 16px;
  padding: 1.5rem 2rem;
  backdrop-filter: blur(16px);
  box-shadow: 0 0 40px rgba(139,92,246,0.08), 0 20px 40px rgba(0,0,0,0.35);
  margin-top: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: all 0.4s ease;
}

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

.rpg-detail-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1rem;
}

.rpg-detail-icon {
  font-size: 2rem;
  line-height: 1;
  filter: drop-shadow(0 0 8px rgba(139,92,246,0.5));
  flex-shrink: 0;
  transition: all 0.35s ease;
}

.rpg-detail-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 0 0 0.2rem;
  line-height: 1.2;
}

.rpg-detail-subtitle {
  font-size: 0.8rem;
  color: var(--accent-purple-hover);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.rpg-level-badge {
  margin-left: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: linear-gradient(135deg, rgba(139,92,246,0.15), rgba(99,102,241,0.1));
  border: 1px solid rgba(139,92,246,0.3);
  border-radius: 10px;
  padding: 0.4rem 0.75rem;
  min-width: 55px;
  flex-shrink: 0;
}

.rpg-level-label {
  font-size: 0.6rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  font-weight: 700;
  text-transform: uppercase;
}

.rpg-level-num {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-purple-hover), var(--accent-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
}

.rpg-detail-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
  transition: all 0.35s ease;
}

/* Barra de XP */
.rpg-xp-bar-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.rpg-xp-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.rpg-xp-bar {
  height: 8px;
  background: rgba(255,255,255,0.05);
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.04);
}

.rpg-xp-fill {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-indigo), var(--accent-pink));
  box-shadow: 0 0 10px rgba(139,92,246,0.5);
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.rpg-xp-fill::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  right: 0; bottom: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.25) 50%, transparent 100%);
  animation: xp-shimmer 2s ease-in-out infinite;
}

@keyframes xp-shimmer {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(200%); }
}

/* Animación de entrada del panel al cambiar nodo */
@keyframes rpg-panel-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.rpg-detail-panel.changing {
  animation: rpg-panel-in 0.35s ease forwards;
}

/* Responsive */
@media (max-width: 900px) {
  .rpg-tree-container {
    height: 620px;
  }
}

@media (max-width: 600px) {
  .rpg-tree-container {
    height: 680px;
    overflow: visible;
  }
  .rpg-node-icon    { width: 52px; height: 52px; font-size: 1.3rem; }
  .rpg-node-root .rpg-node-icon { width: 64px; height: 64px; font-size: 1.6rem; }
  .rpg-node-sub .rpg-node-icon  { width: 44px; height: 44px; font-size: 1.1rem; }
  .rpg-node-label   { font-size: 0.62rem; }
  .rpg-detail-panel { padding: 1.25rem; }
}

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


.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2rem;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.skill-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-indigo));
  opacity: 0;
  transition: var(--transition-smooth);
}

.skill-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-glow);
}

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

.skill-icon-wrap {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: rgba(139, 92, 246, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-purple-hover);
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
}

.skill-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.skill-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* =====================================================
   CARRUSEL DE HABILIDADES (Snapshot Style)
   ===================================================== */

.skills-carousel-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 0 2rem;
  overflow: hidden;
}

.skills-carousel-track {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  width: 100%;
  position: relative;
  height: 360px;
  perspective: 1200px;
}

/* --- Tarjeta Base del Carrusel --- */
.skill-carousel-card {
  position: absolute;
  width: 300px;
  cursor: pointer;
  transition: all 0.55s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform, opacity;
}

.skill-card-inner {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 2rem;
  backdrop-filter: blur(16px);
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,0.35);
  transition: var(--transition-smooth);
}

.skill-card-inner::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-indigo));
  opacity: 0;
  transition: var(--transition-smooth);
}

/* Estado: tarjeta central (activa) */
.skill-carousel-card[data-state="center"] {
  transform: translateX(0) scale(1) rotate(0deg);
  z-index: 10;
  opacity: 1;
}
.skill-carousel-card[data-state="center"] .skill-card-inner {
  border-color: rgba(139, 92, 246, 0.35);
  box-shadow: 0 0 40px rgba(139, 92, 246, 0.2), 0 20px 60px rgba(0,0,0,0.5);
}
.skill-carousel-card[data-state="center"] .skill-card-inner::before {
  opacity: 1;
}

/* Estado: tarjeta izquierda */
.skill-carousel-card[data-state="left"] {
  transform: translateX(-270px) scale(0.82) rotate(-4deg);
  z-index: 5;
  opacity: 0.65;
}

/* Estado: tarjeta derecha */
.skill-carousel-card[data-state="right"] {
  transform: translateX(270px) scale(0.82) rotate(4deg);
  z-index: 5;
  opacity: 0.65;
}

/* Estado: tarjeta lejana izquierda */
.skill-carousel-card[data-state="far-left"] {
  transform: translateX(-430px) scale(0.65) rotate(-8deg);
  z-index: 1;
  opacity: 0.25;
  pointer-events: none;
}

/* Estado: tarjeta lejana derecha */
.skill-carousel-card[data-state="far-right"] {
  transform: translateX(430px) scale(0.65) rotate(8deg);
  z-index: 1;
  opacity: 0.25;
  pointer-events: none;
}

/* Estado: oculto */
.skill-carousel-card[data-state="hidden"] {
  transform: translateX(0) scale(0.4);
  z-index: 0;
  opacity: 0;
  pointer-events: none;
}

/* Hover en tarjetas laterales */
.skill-carousel-card[data-state="left"]:hover,
.skill-carousel-card[data-state="right"]:hover {
  opacity: 0.85;
}

/* --- Contenido de la tarjeta --- */
.skill-carousel-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.skill-carousel-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
}

.skill-tag-pill {
  background: rgba(139, 92, 246, 0.08);
  border: 1px solid rgba(139, 92, 246, 0.18);
  color: var(--accent-pink);
  padding: 0.2rem 0.65rem;
  border-radius: 30px;
  font-size: 0.75rem;
  font-weight: 500;
}

/* --- Botones de Navegación --- */
.skills-carousel-btn {
  position: absolute;
  z-index: 20;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(139,92,246,0.3);
  background: rgba(13, 11, 26, 0.75);
  backdrop-filter: blur(12px);
  color: var(--text-white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 20px rgba(0,0,0,0.35);
}

.skills-carousel-btn:hover {
  background: rgba(139, 92, 246, 0.2);
  border-color: var(--accent-purple);
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
  transform: scale(1.08);
}

.skills-carousel-prev { left: 0; }
.skills-carousel-next { right: 0; }

/* --- Indicadores de puntos --- */
.skills-carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  margin-top: 1.5rem;
}

.skills-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.15);
  cursor: pointer;
  transition: var(--transition-smooth);
  padding: 0;
}

.skills-dot.active {
  background: var(--accent-purple);
  width: 28px;
  border-radius: 4px;
  box-shadow: 0 0 10px rgba(139,92,246,0.5);
}

.skills-dot:hover:not(.active) {
  background: rgba(139,92,246,0.4);
}

/* Responsive: en móvil solo mostrar la tarjeta central */
@media (max-width: 768px) {
  .skills-carousel-track {
    height: 320px;
  }
  .skill-carousel-card {
    width: 260px;
  }
  .skill-carousel-card[data-state="left"] {
    transform: translateX(-200px) scale(0.75) rotate(-4deg);
  }
  .skill-carousel-card[data-state="right"] {
    transform: translateX(200px) scale(0.75) rotate(4deg);
  }
  .skill-carousel-card[data-state="far-left"],
  .skill-carousel-card[data-state="far-right"] {
    opacity: 0;
  }
  .skills-carousel-prev { left: 0.25rem; }
  .skills-carousel-next { right: 0.25rem; }
}


.projects-filter-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3rem;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.filter-tabs {
  display: flex;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  padding: 0.35rem;
  border-radius: 30px;
  backdrop-filter: blur(10px);
}

.filter-tab {
  background: none;
  border: none;
  padding: 0.5rem 1.25rem;
  border-radius: 20px;
  color: var(--text-muted);
  font-family: var(--font-title);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.filter-tab:hover {
  color: var(--text-white);
}

.filter-tab.active {
  background: var(--accent-purple);
  color: var(--text-white);
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.2);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2.5rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  overflow: hidden;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  height: 100%;
  backdrop-filter: blur(12px);
  position: relative;
}

.project-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 20px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.4), transparent, rgba(99, 102, 241, 0.4));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0;
  transition: var(--transition-smooth);
}

.project-card:hover {
  transform: translateY(-8px);
  border-color: transparent;
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-glow-strong);
}

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

.project-img-container {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: #0b0a16;
}

.project-img-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.project-card:hover .project-img-container img {
  transform: scale(1.08);
}

/* Fallback visual de imagen */
.project-img-fallback {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #1b1638, #0e0c1f);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: var(--accent-purple-hover);
  gap: 0.5rem;
  font-family: var(--font-title);
  position: relative;
}

.project-img-fallback i {
  font-size: 2.5rem;
}

.project-category-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(13, 11, 26, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--text-white);
  backdrop-filter: blur(8px);
  padding: 0.3rem 0.8rem;
  border-radius: 30px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.project-info {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-info h3 {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
}

.project-description {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.5;
}

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

.project-tag {
  background: rgba(139, 92, 246, 0.05);
  border: 1px solid rgba(139, 92, 246, 0.1);
  color: var(--accent-pink);
  padding: 0.2rem 0.65rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 500;
}

.project-links {
  display: flex;
  gap: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 1rem;
}

.project-link {
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-normal);
  transition: var(--transition-fast);
}

.project-link:hover {
  color: var(--accent-purple-hover);
}

/* --- Formulario de Contacto --- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 4rem;
  align-items: start;
}

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

.contact-info-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: 20px;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  backdrop-filter: blur(12px);
  transition: var(--transition-smooth);
}

.contact-info-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}

.contact-info-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: rgba(99, 102, 241, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-indigo);
  font-size: 1.35rem;
}

.contact-info-detail h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.contact-info-detail p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 2.5rem;
  border-radius: 20px;
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

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

.form-group label {
  font-family: var(--font-title);
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--text-white);
}

.form-control {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 0.85rem 1.1rem;
  color: var(--text-white);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: var(--transition-smooth);
  width: 100%;
}

.form-control::placeholder {
  color: var(--text-muted);
  opacity: 0.6;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-purple);
  box-shadow: 0 0 12px rgba(139, 92, 246, 0.25);
  background: rgba(21, 19, 41, 0.8);
}

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

/* --- Footer --- */
footer {
  border-top: 1px solid var(--border-color);
  padding: 3rem 0;
  background: #06050b;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-content p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.admin-trigger-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.85rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: var(--transition-fast);
}

.admin-trigger-btn:hover {
  color: var(--accent-purple-hover);
  text-decoration: underline;
}

/* --- Modales / Admin Panel --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 3, 8, 0.8);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 1.5rem;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal-container {
  background: var(--bg-panel);
  border: 1px solid var(--border-hover);
  border-radius: 20px;
  width: 100%;
  max-width: 750px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-glow-strong);
  transform: scale(0.95) translateY(20px);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
}

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

.modal-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  background: var(--bg-panel);
  z-index: 10;
}

.modal-header h3 {
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.modal-close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  transition: var(--transition-fast);
}

.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-white);
}

.modal-body {
  padding: 2rem;
  flex-grow: 1;
}

.modal-footer {
  padding: 1.5rem 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  background: var(--bg-panel);
  position: sticky;
  bottom: 0;
  z-index: 10;
}

/* Controles especificos del Admin Panel */
.admin-actions-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  gap: 1rem;
}

.admin-action-group {
  display: flex;
  gap: 0.75rem;
}

.project-list-table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: 12px;
}

.project-list-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.project-list-table th,
.project-list-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.project-list-table th {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-white);
  font-family: var(--font-title);
  font-weight: 600;
}

.project-list-table tr:last-child td {
  border-bottom: none;
}

.project-list-table tr:hover td {
  background: rgba(255, 255, 255, 0.01);
}

.actions-cell {
  display: flex;
  gap: 0.5rem;
}

.btn-small-icon {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-normal);
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-small-icon:hover {
  background: rgba(139, 92, 246, 0.1);
  border-color: var(--accent-purple);
  color: var(--accent-purple-hover);
}

.btn-small-icon.delete:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: #ef4444;
  color: #f87171;
}

/* --- Panel de formulario para agregar/editar (submodal) --- */
.subpanel-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

/* Alertas de Notificación */
.notification {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-panel);
  border-left: 4px solid var(--accent-purple);
  border-right: 1px solid var(--border-color);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 1.5rem;
  border-radius: 8px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 2000;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.notification.show {
  transform: translateY(0);
  opacity: 1;
}

.notification.success {
  border-left-color: #10b981;
}

.notification.error {
  border-left-color: #ef4444;
}

/* --- Responsive y Media Queries --- */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }
  
  .hero-content {
    align-items: center;
  }
  
  .hero h1 {
    font-size: 3rem;
  }
  
  .hero-description {
    margin: 0 auto 1.5rem auto;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none; /* se podría implementar mobile menu si es necesario */
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .form-group-row, .form-row-2 {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .section {
    padding: 5rem 0;
  }
  
  .projects-filter-bar {
    flex-direction: column;
    align-items: center;
  }
}

/* =====================================================
   SISTEMA DE LOGIN / AUTENTICACIÓN
   ===================================================== */

/* --- Canvas de Red Neural del Login --- */
#login-neural-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none; /* eventos capturados por el div padre #login-screen */
}

/* --- Pantalla de Login (cubre toda la ventana) --- */
.login-screen {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  /* Fondo oscuro profundo con gradiente de color morado */
  background:
    radial-gradient(ellipse at 20% 30%, rgba(76, 29, 149, 0.4) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(91, 33, 182, 0.35) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(15, 5, 35, 0.95) 0%, transparent 100%),
    #07030f;
  padding: 1.5rem;
  overflow-y: auto;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.login-screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* --- Card de Login (glassmorphism translúcido) --- */
.login-card {
  position: relative;
  z-index: 2; /* por encima del canvas neural */
  /* Glassmorphism con muy baja opacidad para máxima transparencia */
  background: rgba(10, 5, 30, 0.15);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: 1.5rem;
  padding: 2.75rem 2.5rem;
  width: 100%;
  max-width: 440px;
  box-shadow:
    0 0 0 1px rgba(139, 92, 246, 0.08),
    0 8px 32px rgba(0, 0, 0, 0.6),
    0 0 80px rgba(91, 33, 182, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  animation: loginCardAppear 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275) both;
}

@keyframes loginCardAppear {
  from { opacity: 0; transform: scale(0.88) translateY(40px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

/* --- Branding --- */
.login-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 2rem;
  justify-content: center;
}

.login-brand-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 25px rgba(91, 33, 182, 0.45);
}

.login-brand-icon svg {
  width: 24px;
  height: 24px;
  color: #fff;
  stroke: #fff;
}

.login-brand-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-white);
  letter-spacing: -0.02em;
}

.login-brand-text span {
  color: var(--accent-light);
}

/* --- Títulos --- */
.login-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-white);
  text-align: center;
  margin-bottom: 0.5rem;
}

.login-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  text-align: center;
  margin-bottom: 2rem;
}

/* --- Etiqueta de campos --- */
.login-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: rgba(192, 132, 252, 0.85);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* --- Botones full-width del login --- */
.login-btn-main,
.login-btn-guest {
  width: 100%;
  justify-content: center;
  padding: 0.9rem;
}

/* --- Inputs con ícono --- */
.login-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.login-input-icon {
  position: absolute;
  left: 1rem;
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  pointer-events: none;
  z-index: 1;
}

.login-input-icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--accent-purple);
}

.login-input {
  padding-left: 2.75rem !important;
  padding-right: 3rem !important;
}

/* --- Botón mostrar/ocultar contraseña --- */
.toggle-pass-btn {
  position: absolute;
  right: 0.85rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 0.25rem;
  display: flex;
  align-items: center;
  transition: color 0.2s;
}

.toggle-pass-btn:hover { color: var(--accent-light); }

.toggle-pass-btn svg {
  width: 18px;
  height: 18px;
}

/* --- Mensaje de error de login --- */
.login-error {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.35);
  color: #f87171;
  border-radius: 0.6rem;
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
  animation: shakeError 0.4s ease;
}

.login-error svg { width: 18px; height: 18px; stroke: #f87171; flex-shrink: 0; }

@keyframes shakeError {
  0%,100% { transform: translateX(0); }
  20%      { transform: translateX(-8px); }
  40%      { transform: translateX(8px); }
  60%      { transform: translateX(-5px); }
  80%      { transform: translateX(5px); }
}

/* --- Divisor "o" --- */
.login-divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1.5rem 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(139, 92, 246, 0.25);
}

.login-divider span {
  padding: 0 0.25rem;
}

/* --- Badge de Rol en la Navbar --- */
.nav-session-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-role-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.nav-role-badge.admin {
  background: rgba(91, 33, 182, 0.25);
  border: 1px solid rgba(139, 92, 246, 0.5);
  color: var(--accent-light);
}

.nav-role-badge.guest {
  background: rgba(100, 116, 139, 0.2);
  border: 1px solid rgba(148, 163, 184, 0.3);
  color: #94a3b8;
}

/* --- Animación de carga para el botón de enviar --- */
.animate-spin {
  animation: spin 1s linear infinite;
  display: inline-block;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* =====================================================
   BOTONES DE ACCIÓN DE PROYECTOS (Ejecutar / Ver Código / Descargar)
   ===================================================== */

.project-action-btns {
  display: flex;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  flex-wrap: wrap;
}

.proj-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  border-radius: 8px;
  font-family: var(--font-title);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
  border: 1px solid transparent;
  text-decoration: none;
  white-space: nowrap;
}

/* Ejecutar — verde vibrante */
.proj-btn-run {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.3);
  color: #34d399;
}
.proj-btn-run:hover {
  background: rgba(16, 185, 129, 0.2);
  border-color: #10b981;
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.2);
  transform: translateY(-1px);
}

/* Ver Código — morado */
.proj-btn-code {
  background: rgba(139, 92, 246, 0.08);
  border-color: rgba(139, 92, 246, 0.25);
  color: var(--accent-purple-hover);
}
.proj-btn-code:hover {
  background: rgba(139, 92, 246, 0.18);
  border-color: var(--accent-purple);
  box-shadow: 0 0 12px rgba(139, 92, 246, 0.2);
  transform: translateY(-1px);
}

/* Descargar — índigo */
.proj-btn-download {
  background: rgba(99, 102, 241, 0.08);
  border-color: rgba(99, 102, 241, 0.25);
  color: #818cf8;
}
.proj-btn-download:hover {
  background: rgba(99, 102, 241, 0.18);
  border-color: var(--accent-indigo);
  box-shadow: 0 0 12px rgba(99, 102, 241, 0.2);
  transform: translateY(-1px);
}

/* =====================================================
   MODAL VISOR DE CÓDIGO
   ===================================================== */

.code-modal-container {
  max-width: 1100px !important;
  height: 88vh;
  max-height: 88vh;
  overflow-y: hidden !important; /* override base modal-container */
  display: flex;
  flex-direction: column;
}

.code-modal-body {
  display: flex;
  flex: 1;
  overflow: hidden;
  border-top: 1px solid rgba(255,255,255,0.05);
}

/* --- Sidebar de archivos --- */
.code-sidebar {
  width: 220px;
  flex-shrink: 0;
  background: rgba(8, 7, 16, 0.6);
  border-right: 1px solid rgba(255,255,255,0.05);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.code-sidebar-header {
  padding: 0.85rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  position: sticky;
  top: 0;
  background: rgba(8, 7, 16, 0.8);
}

.code-file-list {
  list-style: none;
  padding: 0.5rem 0;
}

.code-file-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-fast);
  border-left: 2px solid transparent;
  word-break: break-all;
}

.code-file-item:hover {
  background: rgba(139,92,246,0.06);
  color: var(--text-normal);
}

.code-file-item.active {
  background: rgba(139,92,246,0.1);
  color: var(--accent-purple-hover);
  border-left-color: var(--accent-purple);
}

/* --- Panel principal de código --- */
.code-main-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  background: #070614;
}

.code-main-panel::before {
  content: attr(data-lang);
  position: absolute;
  top: 0.6rem;
  right: 1rem;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent-purple);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  pointer-events: none;
  z-index: 2;
}

.code-scroll-area {
  display: flex;
  flex: 1;
  overflow: auto;
  padding: 1rem 0;
}

.code-line-numbers {
  display: flex;
  flex-direction: column;
  padding: 0 0.75rem;
  text-align: right;
  color: rgba(255,255,255,0.15);
  font-family: 'JetBrains Mono', 'Consolas', monospace;
  font-size: 0.8rem;
  line-height: 1.65;
  user-select: none;
  border-right: 1px solid rgba(255,255,255,0.05);
  min-width: 3rem;
  flex-shrink: 0;
}

.code-line-numbers span {
  display: block;
}

.code-pre {
  margin: 0;
  padding: 0 1.5rem;
  flex: 1;
  overflow: visible;
}

.code-pre code {
  font-family: 'JetBrains Mono', 'Consolas', 'Courier New', monospace;
  font-size: 0.82rem;
  line-height: 1.65;
  color: #e2e8f0;
  white-space: pre;
  display: block;
  tab-size: 2;
}

/* Responsive: colapsar sidebar en móvil */
@media (max-width: 768px) {
  .code-modal-container {
    height: 95vh;
    max-height: 95vh;
  }
  .code-modal-body {
    flex-direction: column;
  }
  .code-sidebar {
    width: 100%;
    height: 130px;
    border-right: none;
    border-bottom: 1px solid rgba(255,255,255,0.05);
  }
  .code-file-list {
    display: flex;
    flex-direction: row;
    overflow-x: auto;
    padding: 0.25rem;
    flex-wrap: nowrap;
  }
  .code-file-item {
    white-space: nowrap;
    border-left: none;
    border-bottom: 2px solid transparent;
    padding: 0.5rem 0.75rem;
  }
  .code-file-item.active {
    border-left: none;
    border-bottom-color: var(--accent-purple);
  }
  .project-action-btns {
    flex-direction: column;
  }
  .proj-btn {
    justify-content: center;
  }
}

/* =====================================================
   ESTILOS PARA EL EASTER EGG MODAL
   ===================================================== */

.easter-egg-modal-container {
  max-width: 480px !important;
  border: 1px solid rgba(192, 132, 252, 0.4) !important;
  box-shadow: 0 0 40px rgba(139, 92, 246, 0.4) !important;
  background: rgba(12, 10, 24, 0.95) !important;
  backdrop-filter: blur(15px);
  position: relative;
  overflow: hidden;
}

.easter-egg-close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 100;
  font-size: 1.75rem;
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.easter-egg-close-btn:hover {
  color: var(--accent-pink);
}

.easter-egg-content {
  padding: 2.5rem 2rem 2rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.25rem;
}

/* GIF Superior */
.easter-egg-gif-container {
  width: 150px;
  height: 150px;
  border-radius: 20px;
  overflow: hidden;
  border: 2px solid var(--accent-purple);
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
  margin-bottom: 0.5rem;
}

.easter-egg-gif {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Título y Textos */
.easter-egg-title {
  font-family: var(--font-title);
  font-size: 1.4rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--text-white) 30%, var(--accent-pink) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.easter-egg-message-main {
  color: var(--text-normal);
  font-size: 0.95rem;
  line-height: 1.6;
}

.easter-egg-message-sub {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.5;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
  padding-top: 1rem;
  width: 100%;
}

/* Imagen Inferior */
.easter-egg-img-container {
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.05);
  margin-top: 0.5rem;
}

.easter-egg-img {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  display: block;
}

/* --- Botón Invisible para activar Easter Egg --- */
.invisible-trigger-btn {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: default;
  outline: none;
  z-index: 10;
}

/* =====================================================
   SECCIÓN DE CARRERA PROFESIONAL (Línea de Tiempo Serpenteante)
   ===================================================== */
#carrera {
  background: rgba(255, 255, 255, 0.005);
  border-top: 1px solid rgba(255, 255, 255, 0.01);
  position: relative;
}

.timeline-container {
  max-width: 900px;
  margin: 4rem auto 0 auto;
  display: flex;
  flex-direction: column;
  gap: 6rem;
  position: relative;
}

.timeline-row {
  display: flex;
  justify-content: space-between;
  width: 100%;
  position: relative;
}

.timeline-row.row-1 {
  flex-direction: row;
}

.timeline-row.row-2 {
  flex-direction: row-reverse;
}

.timeline-card {
  width: 42%;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  position: relative;
  z-index: 10;
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  transition: var(--transition-smooth);
}

.timeline-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 16px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.4), transparent, rgba(99, 102, 241, 0.4));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0;
  transition: var(--transition-smooth);
}

.timeline-card:hover {
  transform: translateY(-5px);
  border-color: transparent;
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-glow-strong);
}

.timeline-card:hover::after {
  opacity: 1;
}

.timeline-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  color: var(--text-white);
}

.timeline-date {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-pink);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}

.timeline-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Desplazamientos verticales alternados de las tarjetas */
.timeline-row .timeline-card:nth-child(1) {
  transform: translateY(-30px);
}

.timeline-row .timeline-card:nth-child(2) {
  transform: translateY(30px);
}

.timeline-row .timeline-card:nth-child(1):hover {
  transform: translateY(-35px);
}

.timeline-row .timeline-card:nth-child(2):hover {
  transform: translateY(25px);
}

/* Puntos en la línea de tiempo */
.timeline-dot {
  width: 20px;
  height: 20px;
  background: var(--bg-panel);
  border: 4px solid var(--accent-purple);
  border-radius: 50%;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 12;
  box-shadow: 0 0 10px rgba(139, 92, 246, 0.6);
  transition: var(--transition-smooth);
}

/* Posición de los dots en base a si la tarjeta está arriba o abajo */
.timeline-row .timeline-card:nth-child(1) .timeline-dot {
  bottom: -40px;
}

.timeline-row .timeline-card:nth-child(2) .timeline-dot {
  top: -40px;
}

.timeline-card:hover .timeline-dot {
  background: var(--accent-purple);
  box-shadow: 0 0 15px var(--accent-purple);
  transform: translateX(-50%) scale(1.2);
}

/* Líneas horizontales de fila */
.timeline-row::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 21%;
  right: 21%;
  height: 6px;
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-indigo));
  transform: translateY(-50%);
  z-index: 5;
  border-radius: 3px;
}

.timeline-row.row-2::before {
  background: linear-gradient(90deg, var(--accent-pink), var(--accent-indigo));
}

/* Curva S lateral */
.timeline-row.row-1::after {
  content: '';
  position: absolute;
  top: 50%;
  right: calc(21% - 30px);
  width: 60px;
  height: calc(100% + 6rem);
  border: 6px solid transparent;
  border-right-color: var(--accent-indigo);
  border-top-color: var(--accent-indigo);
  border-bottom-color: var(--accent-indigo);
  border-top-right-radius: 30px;
  border-bottom-right-radius: 30px;
  z-index: 5;
  pointer-events: none;
}

/* =====================================================
   RESPONSIVO PARA SECCIÓN CARRERA (Pantallas <= 768px)
   ===================================================== */
@media (max-width: 768px) {
  .timeline-container {
    gap: 4.5rem;
    margin-top: 2rem;
  }
  
  .timeline-card {
    width: 46%;
    padding: 0.75rem;
    border-radius: 12px;
  }
  
  .timeline-card h3 {
    font-size: 0.95rem;
  }
  
  .timeline-date {
    font-size: 0.7rem;
  }
  
  .timeline-desc {
    font-size: 0.75rem;
    line-height: 1.4;
  }
  
  .timeline-row .timeline-card:nth-child(1) {
    transform: translateY(-20px);
  }

  .timeline-row .timeline-card:nth-child(2) {
    transform: translateY(20px);
  }

  .timeline-row .timeline-card:nth-child(1):hover {
    transform: translateY(-23px);
  }

  .timeline-row .timeline-card:nth-child(2):hover {
    transform: translateY(17px);
  }
  
  .timeline-row .timeline-card:nth-child(1) .timeline-dot {
    bottom: -28px;
    width: 14px;
    height: 14px;
    border-width: 3px;
  }

  .timeline-row .timeline-card:nth-child(2) .timeline-dot {
    top: -28px;
    width: 14px;
    height: 14px;
    border-width: 3px;
  }
  
  .timeline-row::before {
    left: 23%;
    right: 23%;
    height: 4px;
  }
  
  .timeline-row.row-1::after {
    right: calc(23% - 20px);
    width: 40px;
    height: calc(100% + 4.5rem);
    border-width: 4px;
    border-top-right-radius: 20px;
    border-bottom-right-radius: 20px;
  }
}

/* === MEJORAS DE RESPONSIVIDAD GENERAL === */
@media (max-width: 768px) {
  /* Contenedor principal de la navegación móvil */
  .nav-links {
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background: rgba(8, 7, 16, 0.98);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    padding: 2.5rem 2rem 7.5rem 2rem; /* padding extra abajo para el session-info */
    border-bottom: 1px solid var(--border-color);
    display: flex !important; /* forzamos flex y controlamos visibilidad por opacity/transform */
    flex-direction: column;
    gap: 1.75rem;
    transform: translateY(-20px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1), transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.35s ease;
    z-index: 99;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  }
  
  header.scrolled .nav-links {
    top: 70px;
  }
  
  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  /* Ubicar el badge de sesión y logout dentro del menú móvil */
  .nav-session-info {
    display: flex !important;
    position: absolute;
    top: 360px; /* posicionado debajo de los links */
    left: 2rem;
    right: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 1.5rem;
    justify-content: space-between;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 100;
  }

  .mobile-menu-open .nav-session-info {
    opacity: 1;
    visibility: visible;
  }

  /* Perfil en Hero */
  .profile-container {
    width: min(300px, 75vw) !important;
    height: min(300px, 75vw) !important;
  }

  /* Árbol RPG scrollable */
  .rpg-tree-scroll-wrapper {
    width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid rgba(255, 255, 255, 0.03);
    padding: 1.5rem 1rem;
    margin-top: 1.5rem;
  }

  .rpg-tree-container {
    min-width: 800px; /* Asegura que no se amontone en móvil */
    margin: 0 !important;
  }
  
  /* Optimización del grid de proyectos en tablets/móviles */
  .projects-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)) !important;
    gap: 1.5rem !important;
  }
}

/* Ocultar side cards de habilidades en pantallas pequeñas */
@media (max-width: 480px) {
  .skill-carousel-card[data-state="left"],
  .skill-carousel-card[data-state="right"] {
    opacity: 0 !important;
    pointer-events: none !important;
  }
  
  .skills-carousel-prev { left: 0.5rem !important; }
  .skills-carousel-next { right: 0.5rem !important; }
}

/* Timeline vertical responsivo para pantallas muy pequeñas */
@media (max-width: 600px) {
  .timeline-container {
    display: flex !important;
    flex-direction: column !important;
    gap: 2rem !important;
    padding-left: 2rem !important;
    margin-top: 2rem;
  }

  .timeline-container::before {
    content: '' !important;
    position: absolute !important;
    top: 0 !important;
    bottom: 0 !important;
    left: 24px !important; /* Línea vertical del timeline */
    width: 4px !important;
    background: linear-gradient(180deg, var(--accent-purple), var(--accent-indigo), var(--accent-pink)) !important;
    border-radius: 2px !important;
    z-index: 1 !important;
    transform: none !important;
  }

  .timeline-row {
    display: flex !important;
    flex-direction: column !important;
    gap: 2rem !important;
    width: 100% !important;
  }

  .timeline-card {
    width: 100% !important;
    transform: none !important;
    margin: 0 !important;
    padding: 1.25rem !important;
  }

  /* Desactivar desplazamientos e interacciones de fila */
  .timeline-row .timeline-card:nth-child(1),
  .timeline-row .timeline-card:nth-child(2),
  .timeline-row .timeline-card:nth-child(1):hover,
  .timeline-row .timeline-card:nth-child(2):hover {
    transform: none !important;
  }

  /* Eliminar líneas y curvas horizontales */
  .timeline-row::before,
  .timeline-row::after {
    display: none !important;
  }

  /* Posicionamiento de los dots del timeline a la izquierda */
  .timeline-row .timeline-card:nth-child(1) .timeline-dot,
  .timeline-row .timeline-card:nth-child(2) .timeline-dot {
    top: 24px !important;
    bottom: auto !important;
    left: -20px !important; /* Alineado exactamente sobre la línea vertical */
    transform: translateX(-50%) !important;
    width: 16px !important;
    height: 16px !important;
    border-width: 3px !important;
  }

  .timeline-card:hover .timeline-dot {
    transform: translateX(-50%) scale(1.2) !important;
  }
}

/* Ajustes menores de espaciado en pantallas pequeñas */
@media (max-width: 576px) {
  .container {
    padding: 0 1.25rem !important;
  }
  
  .section {
    padding: 4.5rem 0 !important;
  }
  
  .section-header h2 {
    font-size: 2rem !important;
  }
  
  .login-card {
    padding: 2.25rem 1.5rem !important;
  }
  
  .modal-overlay {
    padding: 0.75rem !important;
  }
  
  .modal-container {
    max-height: 96vh !important;
    border-radius: 14px !important;
  }
  
  .modal-body {
    padding: 1.25rem !important;
  }
  
  .modal-header, .modal-footer {
    padding: 1rem 1.25rem !important;
  }
  
  .project-action-btns {
    flex-direction: column !important;
    width: 100%;
  }
  
  .proj-btn {
    width: 100% !important;
    justify-content: center !important;
  }
}