:root {
  --bg-dark: #0f172a;
  --bg-card: #1e293b;
  --bg-hover: #334155;
  --accent-blue: #38bdf8;
  --accent-purple: #a78bfa;
  --accent-green: #10b981;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --border: #334155;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
}

/* HEADER & NAV */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-desktop {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-desktop a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.3s;
  position: relative;
}

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

.nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-blue);
  transition: width 0.3s;
}

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

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

.social-icons a {
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: color 0.3s;
}

.social-icons a:hover {
  color: var(--accent-blue);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: 0.3s;
}

/* HERO SECTION */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero-content .subtitle {
  color: var(--accent-blue);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-content p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 2rem;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  font-size: 1rem;
  transition: all 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary {
  background: var(--accent-blue);
  color: var(--bg-dark);
}

.btn-primary:hover {
  background: #0ea5e9;
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(56, 189, 248, 0.3);
}

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

.btn-secondary:hover {
  background: var(--accent-blue);
  color: var(--bg-dark);
}

.hero-social {
  display: flex;
  gap: 1.5rem;
  margin-top: 2rem;
}

.hero-social a {
  color: var(--text-secondary);
  font-size: 1.3rem;
  transition: color 0.3s;
}

.hero-social a:hover {
  color: var(--accent-blue);
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.profile-circle {
  width: 300px;
  height: 300px;
  border-radius: 50%;
  border: 3px solid var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(167, 139, 250, 0.1));
  position: relative;
  overflow: hidden;
}

.profile-circle img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.profile-circle::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, var(--accent-blue), var(--accent-purple), var(--accent-blue));
  opacity: 0;
  animation: spin 3s linear infinite;
}

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

/* STATS */
.stats {
  display: flex;
  gap: 2rem;
  margin-top: 2rem;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent-blue);
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* SECTIONS */
section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
  border-top: 1px solid var(--border);
}

section h2 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  font-weight: 700;
}

section > p:first-of-type {
  color: var(--text-secondary);
  margin-bottom: 3rem;
  font-size: 1.05rem;
}

/* IMPACTO REAL */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 2rem;
}

.project-card {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  transition: all 0.3s;
  cursor: pointer;
}

.project-card:hover {
  border-color: var(--accent-blue);
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(56, 189, 248, 0.1);
}

.project-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.project-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.project-card .subtitle {
  color: var(--accent-blue);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.project-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* STACK TÉCNICO */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.stack-item {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  text-align: center;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.stack-item:hover {
  border-color: var(--accent-blue);
  transform: translateY(-5px);
}

.stack-item i {
  font-size: 2.5rem;
  color: var(--accent-blue);
}

.stack-item p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ARQUITECTURA */
.simulator-container {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  margin-top: 2rem;
  margin-bottom: 3rem;
}

.simulator-controls {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.btn-simulator {
  padding: 0.6rem 1.2rem;
  border-radius: 0.4rem;
  font-weight: 600;
  border: 1px solid var(--border);
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-card);
  color: var(--text-primary);
}

.btn-simulator:hover:not(:disabled) {
  border-color: var(--accent-blue);
  background: rgba(56, 189, 248, 0.1);
}

.btn-simulator:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.architecture-svg {
  width: 100%;
  height: auto;
  min-height: 600px;
  display: block;
}

.simulator-legend {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
}

.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.architecture-diagram-container {
  background: var(--bg-card);
  padding: 3rem 2rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  margin-top: 2rem;
  margin-bottom: 3rem;
}

.architecture-flow {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-items: center;
}

.flow-main {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  width: 100%;
  flex-wrap: wrap;
}

.flow-box {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.15), rgba(56, 189, 248, 0.05));
  border: 2px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  min-width: 140px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  transition: all 0.3s;
  position: relative;
}

.flow-box:hover {
  border-color: var(--accent-blue);
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.2);
}

.flow-box i {
  font-size: 2rem;
  color: var(--accent-blue);
}

.flow-box span {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.flow-box.cliente i { color: #94a3b8; }
.flow-box.api-gateway i { color: var(--accent-purple); }
.flow-box.payment-service i { color: var(--accent-blue); }
.flow-box.database i { color: var(--accent-green); }
.flow-box.message-queue i { color: #f59e0b; }
.flow-box.audit-service i { color: var(--accent-green); }
.flow-box.notification-service i { color: var(--accent-purple); }

.flow-connector {
  font-size: 1.5rem;
  color: var(--text-secondary);
  font-weight: bold;
}

.flow-vertical {
  width: 100%;
  display: flex;
  justify-content: center;
  height: 1.5rem;
}

.vertical-line {
  width: 2px;
  height: 100%;
  background: linear-gradient(to bottom, var(--accent-blue), transparent);
}

.flow-queue {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  width: 100%;
  flex-wrap: wrap;
}

.queue-connector {
  width: 60px;
  height: 2px;
  background: linear-gradient(to right, var(--accent-blue), transparent);
  position: relative;
}

.queue-connector::after {
  content: '';
  position: absolute;
  right: -8px;
  top: -4px;
  width: 0;
  height: 0;
  border-left: 8px solid var(--accent-blue);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
}

.flow-vertical-down {
  width: 100%;
  display: flex;
  justify-content: center;
  height: 1.5rem;
}

.flow-notifications {
  display: flex;
  justify-content: center;
  width: 100%;
}

.architecture-description {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 2rem;
  line-height: 1.6;
}

.architecture-features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.feature-card {
  background: var(--bg-card);
  padding: 1.5rem;
  border-radius: 0.75rem;
  border: 1px solid var(--border);
  text-align: center;
  transition: all 0.3s;
}

.feature-card:hover {
  border-color: var(--accent-blue);
  transform: translateY(-5px);
}

.feature-card i {
  font-size: 2rem;
  color: var(--accent-blue);
  margin-bottom: 0.75rem;
}

.feature-card h4 {
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* INTEGRACIONES */
.integrations-container {
  background: var(--bg-card);
  padding: 3rem 2rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  margin-top: 2rem;
  margin-bottom: 3rem;
}

.integrations-header {
  text-align: center;
  margin-bottom: 2rem;
}

.integrations-header h3 {
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.integrations-header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.integrations-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.integration-item {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(167, 139, 250, 0.05));
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  text-align: center;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.integration-item:hover {
  border-color: var(--accent-blue);
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.15);
  transform: translateY(-3px);
}

.integration-item i {
  font-size: 2.5rem;
  color: var(--accent-blue);
}

.integration-item h4 {
  color: var(--text-primary);
  font-size: 1rem;
  margin: 0;
}

.integration-item p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.5;
  margin: 0;
}

/* CONTACTO */
.contact-section {
  text-align: center;
}

.contact-content {
  background: var(--bg-card);
  padding: 3rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  margin-top: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.contact-content p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: 1.05rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
  text-align: left;
}

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

.contact-item i {
  color: var(--accent-blue);
  font-size: 1.3rem;
  width: 30px;
}

.contact-item a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s;
}

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

/* FOOTER */
footer {
  background: rgba(15, 23, 42, 0.5);
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* MOBILE */
@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero {
    grid-template-columns: 1fr;
    padding: 2rem 1.5rem;
  }

  .hero-content h1 {
    font-size: 2rem;
  }

  .hero-image {
    order: -1;
  }

  .profile-circle {
    width: 200px;
    height: 200px;
  }

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

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

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

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

  .architecture-diagram-container {
    padding: 2rem 1rem;
  }

  .simulator-container {
    padding: 1rem;
  }

  .simulator-controls {
    gap: 0.5rem;
  }

  .btn-simulator {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
  }

  .architecture-svg {
    min-height: 800px;
  }

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

  .architecture-diagram-container {
    padding: 2rem 1rem;
  }

  .integrations-container {
    padding: 2rem 1rem;
  }

  .flow-main {
    gap: 0.5rem;
  }

  .flow-box {
    min-width: 100px;
    padding: 0.75rem;
    font-size: 0.85rem;
  }

  .flow-box i {
    font-size: 1.5rem;
  }

  .flow-box span {
    font-size: 0.75rem;
  }

  .flow-connector {
    display: none;
  }

  .flow-main {
    flex-direction: column;
  }

  .flow-queue {
    flex-direction: column;
    gap: 0.5rem;
  }

  .queue-connector {
    display: none;
  }

  .hero-buttons {
    flex-direction: column;
  }

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

  section {
    padding: 2rem 1.5rem;
  }

  section h2 {
    font-size: 1.8rem;
  }

  .stats {
    flex-direction: column;
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .stack-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .architecture-features-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-content h1 {
    font-size: 1.5rem;
  }

  section h2 {
    font-size: 1.5rem;
  }

  .contact-content {
    padding: 1.5rem;
  }

  .flow-box {
    min-width: 90px;
    padding: 0.5rem;
  }

  .flow-box i {
    font-size: 1.2rem;
  }

  .flow-box span {
    font-size: 0.7rem;
  }

  .architecture-diagram-container {
    padding: 1.5rem 1rem;
  }

  .integrations-container {
    padding: 1.5rem 1rem;
  }

  .integration-item i {
    font-size: 2rem;
  }

  .integration-item h4 {
    font-size: 0.9rem;
  }

  .integration-item p {
    font-size: 0.8rem;
  }

  .simulator-container {
    padding: 0.75rem;
  }

  .simulator-controls {
    flex-direction: column;
  }

  .btn-simulator {
    width: 100%;
    justify-content: center;
    font-size: 0.8rem;
    padding: 0.5rem;
  }

  .architecture-svg {
    min-height: 1000px;
  }

  .simulator-legend {
    grid-template-columns: 1fr;
  }
}