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

body {
  background-color: #0f1117;
  color: #e5e7eb;
  font-family: 'Inter', system-ui, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

.glow-bg {
  position: absolute;
  top: -15%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(circle, rgba(37,99,235,0.15) 0%, rgba(37,99,235,0) 60%);
  border-radius: 50%;
  filter: blur(80px);
  z-index: -2;
  pointer-events: none;
}

img {
  max-width: 100%;
  display: block;
  border-radius: 0.5rem;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.section {
  padding-top: 2rem;
  padding-bottom: 2rem;
  border-top: 1px solid rgba(255,255,255,0.07);
  margin-top: 2rem;
}

/* Header */
.site-header {
  border-bottom: 1px solid rgba(255,255,255,0.04);
  background-color: rgba(15,17,23,0.7);
  backdrop-filter: blur(12px) saturate(150%);
  -webkit-backdrop-filter: blur(12px) saturate(150%);
  position: sticky;
  top: 0;
  z-index: 50;
  transition: all 0.3s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.brand {
  font-weight: 600;
  color: #fff;
  font-size: 0.95rem;
  letter-spacing: -0.03em;
}

.nav-links a {
  color: #9ca3af;
  text-decoration: none;
  font-size: 0.9rem;
  margin-left: 1rem;
  transition: color .15s;
}

.nav-links a:hover {
  color: #fff;
}

.nav-links a:focus-visible,
.btn:focus-visible,
.plink:focus-visible {
  outline: 2px solid #60a5fa;
  outline-offset: 2px;
  border-radius: 0.4rem;
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-top: 3rem;
  padding-bottom: 3rem;
}

@media (min-width: 720px) {
  .hero {
    grid-template-columns: 2fr 1fr;
    align-items: center;
  }
}

.hero-text h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  background: linear-gradient(135deg, #fff 0%, #93c5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
}

.role {
  font-size: 1.03rem;
  color: #9ca3af;
  margin-bottom: 0.65rem;
}

.value-prop {
  font-size: 1rem;
  color: #bfdbfe;
  max-width: 58ch;
  margin-bottom: 1rem;
}

.intro {
  font-size: 1rem;
  color: #d1d5db;
  max-width: 46ch;
  margin-bottom: 1.5rem;
}

.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Avatar */
.hero-avatar {
  max-width: 220px;
  justify-self: center;
  position: relative;
}

.hero-avatar::before {
  content: "";
  position: absolute;
  top: -15%;
  left: -15%;
  width: 130%;
  height: 130%;
  background: radial-gradient(circle, rgba(37,99,235,0.4) 0%, rgba(37,99,235,0) 65%);
  z-index: -1;
  border-radius: 50%;
  filter: blur(25px);
  animation: pulseAvatar 6s infinite alternate;
}

@keyframes pulseAvatar {
  0% { transform: scale(0.95); opacity: 0.7; }
  100% { transform: scale(1.05); opacity: 1; }
}

@media (min-width: 720px) {
  .hero-avatar {
    justify-self: end;
  }
}

.hero-avatar img {
  border: 1px solid rgba(255,255,255,0.15);
  background-color: rgba(255,255,255,0.05);
  padding: 6px;
  border-radius: 1rem;
  object-fit: cover;
  aspect-ratio: 1/1;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  transition: transform 0.3s ease;
}

.hero-avatar img:hover {
  transform: rotate(2deg) scale(1.03);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: #1f2937;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 0.6rem;
  padding: 0.65rem 1rem;
  font-size: 0.95rem;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease-in-out;
}

.btn:hover {
  background-color: #374151;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.btn.primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  border: 1px solid rgba(255,255,255,0.18);
  box-shadow: 0 4px 12px rgba(37,99,235,0.25);
  font-weight: 600;
}

.btn.primary:hover {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  box-shadow: 0 6px 16px rgba(37,99,235,0.4);
  transform: translateY(-1px);
}

.btn.outline {
  background-color: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.15);
  color: #e5e7eb;
}

.btn.outline:hover {
  background-color: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.3);
}

/* Expertise */
.expertise-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .expertise-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.expertise-card {
  background: linear-gradient(180deg, rgba(26,28,36,0.6) 0%, rgba(15,17,23,0.3) 100%);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 1rem;
  padding: 1.75rem;
  backdrop-filter: blur(12px);
  box-shadow: inset 0 1px 1px rgba(255,255,255,0.05), 0 4px 10px rgba(0,0,0,0.2);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease, border-color 0.3s ease;
  position: relative;
  overflow: hidden;
}

.expertise-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #2563eb, #93c5fd);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.expertise-card:hover {
  transform: translateY(-4px);
  border-color: rgba(96,165,250,0.5);
  box-shadow: 0 10px 30px rgba(37,99,235,0.1);
}

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

.expertise-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.5rem;
}

.expertise-card p {
  font-size: 0.9rem;
  color: #d1d5db;
  margin-bottom: 1.25rem;
  line-height: 1.6;
}

/* Experiencia */
.experience-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  border-left: 2px solid rgba(255,255,255,0.1);
  padding-left: 1.5rem;
  margin-left: 0.5rem;
}

.xp-item {
  position: relative;
}

.xp-item::before {
  content: '';
  position: absolute;
  left: -1.82rem;
  top: 0.35rem;
  width: 12px;
  height: 12px;
  background-color: #2563eb;
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(37,99,235,0.8);
}

.xp-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.5rem;
}

.xp-head h3 {
  font-size: 1.2rem;
  color: #fff;
  font-weight: 600;
  margin-right: 1rem;
}

.xp-date {
  font-size: 0.85rem;
  color: #9ca3af;
  font-weight: 500;
}

.xp-company {
  font-size: 0.95rem;
  color: #93c5fd;
  font-weight: 500;
  margin-bottom: 0.75rem;
}

.xp-desc {
  font-size: 0.9rem;
  color: #d1d5db;
  line-height: 1.6;
  margin-bottom: 1rem;
}

/* Projects */
.section h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 2rem;
  display: inline-block;
  position: relative;
}

.section h2::after {
  content: "";
  display: block;
  width: 40%;
  height: 3px;
  background: linear-gradient(90deg, #2563eb, transparent);
  margin-top: 0.5rem;
  border-radius: 4px;
}

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

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

.project-card {
  background: linear-gradient(145deg, rgba(30,41,59,0.5) 0%, rgba(17,24,39,0.7) 100%);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 1rem;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  min-height: 250px;
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease, border-color 0.3s ease;
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, #2563eb, #93c5fd);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.project-card:hover {
  transform: translateY(-4px) scale(1.02);
  border-color: rgba(96,165,250,0.5);
  box-shadow: 0 10px 30px rgba(37,99,235,0.15);
}

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

.project-image {
  display: none;
}

.project-content {
  padding: 0;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-head {
  display: flex;
  flex-direction: column;
  margin-bottom: 1rem;
}

.project-head h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.6rem;
  letter-spacing: -0.01em;
}

.tech-pill {
  font-size: 0.7rem;
  background-color: #111827;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 999px;
  padding: 0.3rem 0.6rem;
  color: #9ca3af;
  display: inline-block;
  margin-right: 0.25rem;
  margin-bottom: 0.25rem;
}

.project-desc {
  font-size: 0.9rem;
  color: #d1d5db;
  margin-bottom: 1.2rem;
  line-height: 1.6;
}

.project-impact {
  font-size: 0.85rem;
  color: #93c5fd;
  margin-bottom: 1.25rem;
  background: rgba(37,99,235,0.08);
  padding: 0.6rem 0.8rem;
  border-radius: 0.4rem;
  border-left: 2px solid #3b82f6;
  margin-top: auto;
}

.project-impact strong {
  font-weight: 600;
  color: #bfdbfe;
}

.project-actions {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.project-btn {
  font-size: 0.82rem;
  padding: 0.5rem 0.75rem;
}

.project-btn:hover {
  transform: translateY(-1px);
}

/* About */
.about-wrapper {
  background-color: #1a1c24;
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 0.75rem;
  padding: 1.25rem;
  max-width: 800px;
}

.about-text p, .contact-intro {
  font-size: 0.9rem;
  color: #d1d5db;
  margin-bottom: 1rem;
}

.about-list {
  font-size: 0.85rem;
  color: #9ca3af;
  margin-left: 1rem;
  margin-bottom: 1rem;
  list-style: disc;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-links .btn {
  padding: 0.8rem 1.4rem;
  font-size: 1.05rem;
}

.footer-copy {
  font-size: 0.85rem;
  color: #6b7280;
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.05);
  margin-top: 4rem;
  padding-top: 2rem;
}