/* ============================================================
   VARIABLES & RESET
   ============================================================ */
:root {
  --bg: #0B0F14;
  --bg-alt: #0F1419;
  --bg-card: #131920;
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(59, 130, 246, 0.3);
  --text: #E6EDF3;
  --text-dim: #8B949E;
  --text-dimmer: #4A5568;
  --accent: #3B82F6;
  --accent-dim: rgba(59, 130, 246, 0.12);
  --accent-glow: rgba(59, 130, 246, 0.06);
  --font-mono: 'JetBrains Mono', monospace;
  --font-sans: 'Sora', sans-serif;
  --radius: 8px;
  --radius-lg: 12px;
  --max-w: 1100px;
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
}

/* ============================================================
   UTILITIES
   ============================================================ */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
}

.accent {
  color: var(--accent);
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition), backdrop-filter var(--transition);
}

.navbar.scrolled {
  background: rgba(11, 15, 20, 0.85);
  backdrop-filter: blur(12px);
  border-color: var(--border);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--text);
}

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

.nav-links a {
  font-size: 0.82rem;
  color: var(--text-dim);
  letter-spacing: 0.01em;
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 4px;
}

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

.nav-blog {
  color: var(--accent) !important;
  font-weight: 500;
}

.nav-blog:hover {
  opacity: 0.8;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-dim);
  transition: all 0.25s ease;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 40%, transparent 100%);
  opacity: 0.5;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  border: 1px solid var(--border);
  background: var(--accent-dim);
  padding: 5px 12px;
  border-radius: 100px;
  margin-bottom: 2rem;
  letter-spacing: 0.04em;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 6px #22c55e;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.title-dim {
  color: var(--text-dim);
}

.hero-sub {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.hero-desc {
  font-size: 1rem;
  color: var(--text-dim);
  max-width: 520px;
  line-height: 1.75;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: #2563eb;
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-dim);
  border-color: var(--border);
}

.btn-ghost:hover {
  color: var(--text);
  border-color: rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.03);
}

.hero-stack {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.stack-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dimmer);
}

.stack-sep {
  color: var(--text-dimmer);
  font-size: 0.7rem;
}

/* ============================================================
   SECTIONS
   ============================================================ */
.section {
  padding: 96px 0;
}

.section-alt {
  background: var(--bg-alt);
}

.section-header {
  margin-bottom: 3.5rem;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--text);
}

/* ============================================================
   SERVICES
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.service-card {
  background: var(--bg);
  padding: 2.25rem;
  transition: background var(--transition);
}

.service-card:hover {
  background: var(--bg-card);
}

.service-icon {
  color: var(--accent);
  margin-bottom: 1.25rem;
  opacity: 0.9;
}

.service-title {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: 0.75rem;
  color: var(--text);
}

.service-desc {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.service-tags li {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dimmer);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 4px;
}

/* ============================================================
   PROJECTS
   ============================================================ */
.projects-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.project-card {
  background: var(--bg-alt);
  padding: 2.5rem;
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 2rem;
  transition: background var(--transition);
}

.project-card:hover {
  background: var(--bg-card);
}

.project-meta {
  padding-top: 4px;
}

.project-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dimmer);
  display: block;
  margin-bottom: 0.75rem;
  letter-spacing: 0.06em;
}

.project-badges {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.badge {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(59,130,246,0.2);
  padding: 2px 8px;
  border-radius: 4px;
  display: inline-block;
  white-space: nowrap;
}

.project-title {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.project-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 1.75rem;
}

.project-block {}

.block-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.5rem;
}

.project-block p {
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.65;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  transition: color var(--transition), border-color var(--transition);
}

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

/* ============================================================
   ENFOQUE
   ============================================================ */
.enfoque-section {
  background: var(--bg);
  padding: 80px 0;
}

.enfoque-inner {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}

.enfoque-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, var(--accent));
  margin: 0 auto 2.5rem;
}

.enfoque-quote {
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.5;
  color: var(--text);
  border: none;
  margin-bottom: 1.5rem;
}

.enfoque-quote em {
  font-style: normal;
  color: var(--accent);
}

.enfoque-sub {
  font-size: 0.875rem;
  color: var(--text-dim);
  max-width: 480px;
  margin: 0 auto;
}

/* ============================================================
   SKILLS
   ============================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem 3rem;
}

.skill-category {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dimmer);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.875rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
}

.skill-items {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.skill-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--text-dim);
}

.skill-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* ============================================================
   PROCESS
   ============================================================ */
.process-steps {
  max-width: 640px;
}

.process-step {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.step-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(59,130,246,0.2);
  width: 36px;
  height: 36px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: 0.06em;
}

.step-title {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
  margin-top: 6px;
}

.step-desc {
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.7;
}

.process-connector {
  width: 1px;
  height: 2.5rem;
  background: var(--border);
  margin-left: 17px;
  margin-top: 2px;
  margin-bottom: 2px;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-inner {
  max-width: 600px;
}

.contact-desc {
  font-size: 1rem;
  color: var(--text-dim);
  margin-bottom: 2.5rem;
  line-height: 1.75;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.25rem 1.5rem;
  background: var(--bg);
  transition: background var(--transition);
  cursor: pointer;
}

.contact-item:hover {
  background: var(--bg-card);
}

.contact-email:hover .contact-value {
  color: var(--accent);
}

.contact-icon {
  color: var(--text-dim);
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dimmer);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 2px;
}

.contact-value {
  font-size: 0.875rem;
  color: var(--text-dim);
  transition: color var(--transition);
}

.contact-item:hover .contact-value {
  color: var(--text);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--border);
  padding: 1.75rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-logo {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-dim);
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dimmer);
  letter-spacing: 0.06em;
}

.footer-blog {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  transition: opacity var(--transition);
}

.footer-blog:hover {
  opacity: 0.7;
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 0;
    padding: 1rem 0;
    align-items: flex-start;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 0.75rem 2rem;
    width: 100%;
    font-size: 0.9rem;
  }

  .hero {
    padding: 100px 0 60px;
    min-height: auto;
  }

  .hero-title {
    font-size: 1.9rem;
  }

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

  .project-card {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 1.75rem;
  }

  .project-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
  }

  .project-num {
    margin-bottom: 0;
  }

  .project-badges {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .project-row {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem 2rem;
  }

  .section {
    padding: 64px 0;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1.25rem;
  }

  .hero-title {
    font-size: 1.6rem;
  }

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

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

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