@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');

:root {
  --bg-dark: #090d16;
  --bg-card: rgba(17, 24, 39, 0.55);
  --bg-card-hover: rgba(26, 36, 57, 0.75);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(59, 130, 246, 0.35);
  --accent-primary: #3b82f6;
  --accent-primary-rgb: 59, 130, 246;
  --accent-secondary: #06b6d4;
  --accent-secondary-rgb: 6, 182, 212;
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-white: #ffffff;
  
  --font-display: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 25px rgba(59, 130, 246, 0.25);
  --shadow-glow-cyan: 0 0 25px rgba(6, 182, 212, 0.25);
  --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-body);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* Film Grain Overlay */
.film-grain {
  position: fixed;
  inset: -100%;
  width: 300%;
  height: 300%;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.02;
  mix-blend-mode: overlay;
}

@keyframes grain {
  0%, 100% { transform:translate(0, 0); }
  10% { transform:translate(-5%, -10%); }
  20% { transform:translate(-15%, 5%); }
  30% { transform:translate(7%, -25%); }
  40% { transform:translate(-5%, 25%); }
  50% { transform:translate(-15%, 10%); }
  60% { transform:translate(15%, 0); }
  70% { transform:translate(0, 15%); }
  80% { transform:translate(3%, 35%); }
  90% { transform:translate(-10%, 10%); }
}

.animate-grain {
  animation: grain 8s steps(10) infinite;
}

/* Ambient Glow Background Blobs */
body::before,
body::after {
  content: '';
  position: absolute;
  width: 450px;
  height: 450px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--accent-primary-rgb), 0.12) 0%, rgba(0, 0, 0, 0) 70%);
  z-index: -1;
  filter: blur(60px);
  pointer-events: none;
}

body::before {
  top: 5%;
  left: -150px;
}

body::after {
  top: 45%;
  right: -150px;
  background: radial-gradient(circle, rgba(var(--accent-secondary-rgb), 0.10) 0%, rgba(0, 0, 0, 0) 70%);
}

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

p {
  color: var(--text-muted);
}

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

/* Layout container */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Floating Capsule Navbar */
header {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  max-width: 1200px;
  height: 70px;
  background: rgba(9, 13, 22, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: 35px;
  z-index: 1000;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

header:hover {
  border-color: rgba(var(--accent-primary-rgb), 0.2);
  box-shadow: var(--shadow-glow);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  padding: 0 30px;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-white);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.logo-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  box-shadow: 0 0 8px var(--accent-secondary);
  display: inline-block;
}

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

nav a {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  position: relative;
  padding: 5px 0;
  letter-spacing: 0.05em;
}

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

nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  transition: var(--transition);
}

nav a:hover::after, nav a.active::after {
  width: 100%;
}

/* Mobile Nav Burger */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1100;
}

.mobile-nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--text-white);
  margin: 5px 0;
  transition: var(--transition);
}

/* Main Content Box (Higher specificity to win over container resets) */
main.container {
  margin-top: 11.5rem !important;
  padding-bottom: 9rem;
}

/* Tab-based Layout Engine */
.tab-content {
  display: none;
  opacity: 0;
  transform: translateY(10px);
  padding-top: 1rem;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1), transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.tab-content.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* Title Area for Tabs */
.section-title-area {
  margin-bottom: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  border-left: 3px solid var(--accent-secondary);
  padding-left: 1.5rem;
}

.section-tag {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--accent-secondary);
  font-weight: 700;
  font-family: var(--font-mono);
}

.section-title {
  font-size: 2.25rem;
  color: var(--text-white);
}

/* SUB-TAB ROUTER SYSTEM */
.subtabs-container {
  display: flex;
  gap: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 2.5rem;
}

.subtab-btn {
  background: none;
  border: none;
  padding: 0.75rem 0.5rem;
  font-size: 0.88rem;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  position: relative;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
}

.subtab-btn::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  transform: scaleX(0);
  transition: var(--transition);
}

.subtab-btn:hover {
  color: var(--text-white);
}

.subtab-btn.active {
  color: var(--text-white);
}

.subtab-btn.active::after {
  transform: scaleX(1);
}

.subtab-content {
  display: none;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1), transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.subtab-content.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* TAB 1: PRESENTACIÓN (Hero) */
.hero-grid {
  display: grid;
  grid-template-columns: 1.45fr 2fr;
  gap: 3.5rem;
  align-items: center;
  padding: 1.5rem 0;
}

.profile-card {
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 3rem 1.25rem;
  text-align: center;
  border-radius: 20px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.profile-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
}

.profile-img-container {
  width: 140px;
  height: 140px;
  margin: 0 auto 1.5rem auto;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.45);
}

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

.profile-name {
  font-size: 1.6rem;
  margin-bottom: 0.25rem;
  color: var(--text-white);
}

.profile-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-secondary);
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.profile-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.meta-item svg {
  color: var(--accent-primary);
}

.hero-intro h1 {
  font-size: 3.5rem;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--text-white) 40%, var(--text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-intro .bio-text {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 2.5rem;
  text-align: justify;
}

.social-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.social-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 1.2rem;
  border: 1px solid var(--border-color);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-main);
  border-radius: 30px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.social-btn:hover {
  transform: translateY(-3px);
}

/* Brand Colors for Social Buttons */
.social-btn.linkedin {
  border-color: rgba(10, 102, 194, 0.3);
  background: rgba(10, 102, 194, 0.05);
  color: #70b5f9;
}
.social-btn.linkedin:hover {
  background: #0a66c2;
  color: #fff !important;
  border-color: transparent;
  box-shadow: 0 0 15px rgba(10, 102, 194, 0.4);
}

.social-btn.github {
  border-color: rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.02);
  color: #f3f4f6;
}
.social-btn.github:hover {
  background: #24292e;
  color: #fff !important;
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 0 15px rgba(255, 255, 255, 0.15);
}

.social-btn.orcid {
  border-color: rgba(166, 206, 57, 0.3);
  background: rgba(166, 206, 57, 0.05);
  color: #bce545;
}
.social-btn.orcid:hover {
  background: #a6ce39;
  color: #fff !important;
  border-color: transparent;
  box-shadow: 0 0 15px rgba(166, 206, 57, 0.4);
}

.social-btn.instagram {
  border-color: rgba(220, 39, 67, 0.3);
  background: rgba(220, 39, 67, 0.05);
  color: #ff6b8b;
}
.social-btn.instagram:hover {
  background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
  color: #fff !important;
  border-color: transparent;
  box-shadow: 0 0 15px rgba(220, 39, 67, 0.4);
}

/* Biography Text highlights (BIM, IoT, Arquitecto Técnico) */
.bio-text strong {
  color: var(--accent-secondary);
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 8px rgba(6, 182, 212, 0.1);
  font-family: var(--font-display);
}

.social-btn svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

/* TAB 2: PERFIL PROFESIONAL (Full timeline sub-tabs) */
.full-timeline-box {
  width: 100%;
  border: 1px solid var(--border-color);
  padding: 3rem 2.5rem;
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
}

.timeline-v {
  position: relative;
}

.timeline-v::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent-primary), var(--accent-secondary));
}

.timeline-item {
  position: relative;
  padding-left: 2.25rem;
  margin-bottom: 2.5rem;
}

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

.timeline-dot {
  position: absolute;
  left: -6px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--accent-secondary);
  border: 2px solid var(--bg-dark);
  box-shadow: 0 0 8px var(--accent-secondary);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-secondary);
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.timeline-role {
  font-size: 1.25rem;
  margin-bottom: 0.2rem;
  color: var(--text-white);
  line-height: 1.3;
}

.timeline-org {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.6rem;
}

.timeline-org a {
  color: var(--accent-primary);
}

.timeline-org a:hover {
  text-decoration: underline;
}

.timeline-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-align: justify;
}

/* TAB 3: PUBLICACIONES (Sub-tabs) */
.research-grid-full {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
}

.research-card,
.research-profiles-card {
  border: 1px solid var(--border-color);
  padding: 2.5rem 2rem;
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
}

.research-card .highlight-box {
  background-color: rgba(255, 255, 255, 0.02);
  border-left: 3px solid var(--accent-secondary);
  padding: 1.5rem;
  border-radius: 0 12px 12px 0;
  margin-bottom: 1.5rem;
}

.research-card .highlight-box p {
  font-size: 1.15rem;
  line-height: 1.5;
  color: var(--text-white);
  font-weight: 500;
}

.research-card .detail-text {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-muted);
  text-align: justify;
}

.academic-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.academic-link-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.01);
  border-radius: 10px;
  transition: var(--transition);
}

.academic-link-card:hover {
  border-color: var(--accent-secondary);
  background-color: var(--bg-card-hover);
  box-shadow: var(--shadow-glow-cyan);
  padding-left: 1.5rem;
}

.academic-link-card span {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-white);
}

.academic-link-card svg {
  color: var(--accent-secondary);
}

.papers-full-container {
  border: 1px solid var(--border-color);
  padding: 2.5rem;
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
  width: 100%;
}

.column-header {
  font-size: 1.3rem;
  color: var(--text-white);
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
  display: flex;
  align-items: center;
}

.publications-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.pub-row {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 1.5rem;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.01);
  border-radius: 14px;
  align-items: flex-start;
  transition: var(--transition);
}

.pub-row:hover {
  border-color: rgba(var(--accent-primary-rgb), 0.2);
  background-color: var(--bg-card-hover);
  box-shadow: var(--shadow-glow);
}

.pub-year {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--accent-primary);
  font-weight: 800;
  text-align: center;
  line-height: 1;
  padding-top: 0.25rem;
}

.pub-type {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: var(--accent-secondary);
  margin-bottom: 0.25rem;
  display: block;
}

.pub-title-area {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.pub-title {
  font-size: 1.05rem;
  line-height: 1.4;
  color: var(--text-white);
  font-weight: 600;
}

.pub-title:hover {
  color: var(--accent-primary);
}

.pub-venue {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.pub-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  color: var(--accent-primary);
}

.pub-link-btn:hover {
  color: var(--text-white);
}

/* TAB 4: DESARROLLO (Full Grid Cards) */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.project-card {
  border: 1px solid var(--border-color);
  padding: 1rem 1.25rem;
  background-color: rgba(255, 255, 255, 0.01);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: auto;
  border-radius: 12px;
  transition: var(--transition);
}

.project-card:hover {
  border-color: var(--border-hover);
  background-color: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.project-name {
  font-size: 1.15rem;
  margin-bottom: 0.35rem;
  line-height: 1.2;
  color: var(--text-white);
}

.project-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.45;
  text-align: justify;
  margin-bottom: 0.75rem;
}

.project-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}

.project-tag {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  padding: 0.15rem 0.5rem;
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--accent-secondary);
}

.project-links {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.project-link-main {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--accent-secondary);
}

.project-link-main:hover {
  color: var(--text-white);
}

.github-stars {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.github-stars svg {
  width: 12px;
  height: 12px;
  fill: #eab308;
}

/* TAB 5: CONTACTO */
.contacto-card {
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  padding: 3rem;
  border-radius: 20px;
  box-shadow: var(--shadow-md);
  margin: 0.5rem 0;
}

.contacto-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 4rem;
}

.contacto-header {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-secondary);
  margin-bottom: 1.25rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.contacto-detail {
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--text-main);
  font-family: var(--font-display);
}

.email-copy-box {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-top: 0.5rem;
}

#contacto-email-text {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  color: var(--text-white);
  font-weight: 500;
}

.copy-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  border-radius: 6px;
  color: var(--text-main);
  cursor: pointer;
  transition: var(--transition);
}

.copy-btn:hover {
  background-color: var(--accent-primary);
  color: var(--text-white);
  border-color: transparent;
  box-shadow: var(--shadow-glow);
}

.copy-msg {
  display: none;
  color: #10b981; /* Emerald success */
  font-size: 0.8rem;
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-weight: 600;
}

.contacto-social-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.contacto-social-links .social-btn {
  width: 100%;
  justify-content: center;
  border-radius: 8px;
  padding: 0.6rem 0.5rem;
  font-size: 0.75rem;
  height: 42px;
  letter-spacing: 0.08em;
}

/* Footer */
footer {
  border-top: 1px solid var(--border-color);
  padding: 1.25rem 0;
  background: rgba(9, 13, 22, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-white);
}

.footer-copyright {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1rem;
}

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

.footer-links a {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
}

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

/* GitHub Stats Dashboard */
.github-stats-dashboard {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.stats-card {
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  padding: 1.5rem 1rem;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.stats-card:hover {
  border-color: rgba(var(--accent-secondary-rgb), 0.25);
  box-shadow: var(--shadow-glow-cyan);
  transform: translateY(-2px);
}

.stats-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
}

.stats-value {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-white);
  background: linear-gradient(135deg, var(--text-white), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Featured Project Card Banner */
.featured-project-card {
  border: 1px solid rgba(var(--accent-primary-rgb), 0.25);
  background: linear-gradient(135deg, rgba(17, 24, 39, 0.7) 0%, rgba(9, 13, 22, 0.95) 100%);
  padding: 2.25rem 2.5rem;
  border-radius: 16px;
  box-shadow: var(--shadow-glow);
  position: relative;
  overflow: hidden;
  margin-bottom: 3rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.featured-project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent-primary), var(--accent-secondary));
}

.featured-badge {
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--accent-secondary);
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.25);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  letter-spacing: 0.15em;
}

.featured-header-info {
  margin-top: 0.5rem;
  max-width: calc(100% - 150px);
}

.featured-title {
  font-size: 1.75rem;
  color: var(--text-white);
  margin-bottom: 0.75rem;
  font-family: var(--font-display);
}

.featured-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  text-align: justify;
}

/* Featured GitHub Live Stats */
.featured-stats {
  display: flex;
  gap: 2.5rem;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 1.25rem 0;
  margin: 0.5rem 0;
}

.featured-stat-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.featured-stat-icon {
  font-size: 1.15rem;
}

.featured-stat-value {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-white);
  line-height: 1;
}

.featured-stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: var(--font-mono);
  margin-left: 0.25rem;
}

/* Featured Download Links Grid */
.featured-download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.75rem;
  width: 100%;
  margin-top: 0.5rem;
}

.download-link-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 0.75rem;
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-main);
  transition: var(--transition);
  text-align: center;
}

.download-link-btn:hover {
  background: rgba(var(--accent-secondary-rgb), 0.1);
  border-color: var(--accent-secondary);
  color: var(--text-white);
  transform: translateY(-2px);
}

.download-link-btn.primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border-color: transparent;
  color: var(--text-white);
  box-shadow: var(--shadow-glow);
}

.download-link-btn.primary:hover {
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.4);
}

.featured-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(6, 182, 212, 0.45);
  color: var(--text-white);
}

/* Contact Form controls */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

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

.form-group label {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 650;
  color: var(--text-white);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.form-group input,
.form-group textarea {
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.01);
  padding: 0.8rem 1rem;
  border-radius: 8px;
  color: var(--text-white);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-primary);
  outline: none;
  background: rgba(59, 130, 246, 0.04);
}

.form-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 0.5rem;
}

.submit-btn {
  padding: 0.85rem 1.25rem;
  border: none;
  border-radius: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-white);
  text-align: center;
}

.whatsapp-btn {
  background: #25d366;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.2);
}

.whatsapp-btn:hover {
  background: #128c7e;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.35);
}

.telegram-btn {
  background: #0088cc;
  box-shadow: 0 4px 15px rgba(0, 136, 204, 0.2);
}

.telegram-btn:hover {
  background: #006699;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 136, 204, 0.35);
}

.whatsapp-direct-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.5rem;
  background: rgba(37, 211, 102, 0.1);
  border: 1px solid rgba(37, 211, 102, 0.3);
  border-radius: 12px;
  color: #25d366;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: var(--transition);
  width: 100%;
  justify-content: center;
}

.whatsapp-direct-btn:hover {
  background: #25d366;
  color: var(--text-white);
  border-color: transparent;
  box-shadow: 0 0 25px rgba(37, 211, 102, 0.35);
  transform: translateY(-2px);
}

.form-status-msg {
  display: none;
  padding: 0.8rem 1rem;
  border-radius: 8px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  margin-top: 0.5rem;
}

.form-status-msg.sending {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-muted);
  display: block;
}

.form-status-msg.success {
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.25);
  display: block;
}

.form-status-msg.warning {
  background: rgba(245, 158, 11, 0.12);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.25);
  display: block;
}

.form-status-msg.error {
  background: rgba(239, 68, 68, 0.12);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.25);
  display: block;
}

/* NEMO IoT Dashboard styles */
.nemo-card {
  border: 1px solid rgba(var(--accent-primary-rgb), 0.25);
  background: linear-gradient(135deg, rgba(17, 24, 39, 0.7) 0%, rgba(9, 13, 22, 0.95) 100%);
  padding: 2.25rem 2.5rem;
  border-radius: 16px;
  box-shadow: var(--shadow-glow);
  position: relative;
  overflow: hidden;
  margin-bottom: 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.nemo-badge-pulse {
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  color: #10b981;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  letter-spacing: 0.15em;
  animation: nemo-pulse 2s infinite ease-in-out;
}

@keyframes nemo-pulse {
  0% { opacity: 0.6; }
  50% { opacity: 1; }
  100% { opacity: 0.6; }
}

.nemo-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  margin-top: 0.5rem;
}

.nemo-title {
  font-size: 1.75rem;
  color: var(--text-white);
  margin-bottom: 0.25rem;
  font-family: var(--font-display);
}

.nemo-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.4;
  max-width: 85%;
}

.nemo-recommendation {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.25rem;
  border-radius: 10px;
  font-size: 0.85rem;
  line-height: 1.4;
  transition: var(--transition);
}

.nemo-recommendation.rec-optimal {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: #a7f3d0;
}

.nemo-recommendation.rec-warning {
  background: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.2);
  color: #fde68a;
}

.nemo-recommendation.rec-danger {
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: #fca5a5;
}

.nemo-rec-icon {
  font-size: 1.1rem;
}

.nemo-metrics-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  margin: 0.5rem 0;
}

.nemo-metric-box {
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: var(--transition);
}

.nemo-metric-box:hover {
  border-color: rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.03);
  transform: translateY(-2px);
}

.nemo-metric-header {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: var(--font-mono);
}

.nemo-metric-value {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-white);
  line-height: 1.2;
}

.nemo-unit {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  font-family: var(--font-body);
}

.nemo-metric-bar {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 0.25rem;
}

.nemo-metric-progress {
  height: 100%;
  border-radius: 2px;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.8s ease;
}

.nemo-controls {
  border-top: 1px solid var(--border-color);
  padding-top: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.nemo-controls-title {
  font-size: 0.78rem;
  text-transform: uppercase;
  color: var(--text-white);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.nemo-btn-group {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.nemo-btn {
  padding: 0.65rem 1.25rem;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-main);
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
}

.nemo-btn:hover {
  border-color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.05);
  color: var(--text-white);
}

.nemo-btn.active {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border-color: transparent;
  color: var(--text-white);
  box-shadow: var(--shadow-glow-cyan);
}

#nemo-btn-co2:hover {
  border-color: #ef4444;
  background: rgba(239, 68, 68, 0.05);
}
/* NEMO 3D Twin iframe wrapper */
.nemo-card-iframe-container {
  border: 1px solid rgba(var(--accent-primary-rgb), 0.25);
  background: linear-gradient(135deg, rgba(17, 24, 39, 0.7) 0%, rgba(9, 13, 22, 0.95) 100%);
  padding: 2.25rem 2.5rem;
  border-radius: 16px;
  box-shadow: var(--shadow-glow);
  position: relative;
  overflow: hidden;
  margin-bottom: 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.nemo-iframe-wrapper {
  width: 100%;
  height: 500px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: #0f0c29;
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.6);
}

.nemo-iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.nemo-metrics-row-layout {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.25rem;
  width: 100%;
}

/* Responsive Grid and elements */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
    text-align: center;
  }
  .hero-intro h1 {
    font-size: 2.75rem;
  }
  .profile-card {
    max-width: 400px;
    margin: 0 auto;
  }
  .social-links {
    justify-content: center;
  }
  .research-grid-full,
  .contacto-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .contacto-card {
    padding: 2rem;
  }
  .nemo-metrics-row-layout {
    grid-template-columns: repeat(3, 1fr);
  }
  .nemo-iframe-wrapper {
    height: 400px;
  }
}

@media (max-width: 768px) {
  header {
    border-radius: 0;
    top: 0;
    left: 0;
    transform: none;
    width: 100%;
    height: 60px;
    border-top: none;
    border-left: none;
    border-right: none;
  }
  .nav-container {
    padding: 0 20px;
  }
  .nav-container nav {
    display: none;
  }
  .nav-container nav.active {
    display: block;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background-color: rgba(9, 13, 22, 0.98);
    border-bottom: 1px solid var(--border-color);
    padding: 2rem;
    z-index: 999;
  }
  .nav-container nav.active ul {
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
  }
  .mobile-nav-toggle {
    display: block;
  }
  .section-title {
    font-size: 1.85rem;
  }
  main.container {
    margin-top: 7.5rem !important;
  }
  #contacto-email-text {
    font-size: 1.1rem;
  }
  .github-stats-dashboard {
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }
  .featured-project-card {
    padding: 1.5rem 1.75rem;
  }
  .featured-content {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }
  .featured-info {
    max-width: 100%;
  }
  .featured-actions {
    align-items: flex-start;
    width: 100%;
  }
  .featured-btn {
    width: 100%;
    justify-content: center;
  }
  .form-actions {
    grid-template-columns: 1fr;
  }
  .nemo-iframe-wrapper {
    height: 320px;
  }
  .nemo-metrics-row-layout {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }
  .nemo-card-iframe-container {
    padding: 1.5rem 1.75rem;
  }
}

/* Skills Capsules Styles */
.skills-capsules-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 2.5rem;
  padding: 1.25rem 1.5rem;
  background: rgba(17, 24, 39, 0.4);
  border: 1px solid var(--border-color);
  border-radius: 12px;
}

.skill-capsule {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
  transition: var(--transition);
  cursor: default;
}

.skill-capsule:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  background: rgba(255, 255, 255, 0.06);
}

/* Language Capsule Colors */
.skill-python {
  border-color: rgba(59, 130, 246, 0.35);
  background: rgba(59, 130, 246, 0.07);
  color: #60a5fa;
}
.skill-js {
  border-color: rgba(234, 179, 8, 0.35);
  background: rgba(234, 179, 8, 0.07);
  color: #facc15;
}
.skill-sql {
  border-color: rgba(168, 85, 247, 0.35);
  background: rgba(168, 85, 247, 0.07);
  color: #c084fc;
}
.skill-cpp {
  border-color: rgba(14, 116, 144, 0.35);
  background: rgba(14, 116, 144, 0.07);
  color: #22d3ee;
}
.skill-bim {
  border-color: rgba(6, 182, 212, 0.35);
  background: rgba(6, 182, 212, 0.07);
  color: #22d3ee;
}
.skill-bc3 {
  border-color: rgba(249, 115, 22, 0.35);
  background: rgba(249, 115, 22, 0.07);
  color: #fb923c;
}
.skill-iot {
  border-color: rgba(16, 185, 129, 0.35);
  background: rgba(16, 185, 129, 0.07);
  color: #34d399;
}
.skill-firebase {
  border-color: rgba(245, 158, 11, 0.35);
  background: rgba(245, 158, 11, 0.07);
  color: #fbbf24;
}
.skill-cloudflare {
  border-color: rgba(249, 115, 22, 0.35);
  background: rgba(249, 115, 22, 0.07);
  color: #f97316;
}
.skill-git {
  border-color: rgba(244, 63, 94, 0.35);
  background: rgba(244, 63, 94, 0.07);
  color: #fb7185;
}
.skill-print3d {
  border-color: rgba(236, 72, 153, 0.35);
  background: rgba(236, 72, 153, 0.07);
  color: #f472b6;
}