:root {
  /* Linear-style Dark Colors */
  --bg-color: #000000;
  --bg-secondary: #0a0a0a;
  --card-bg: rgba(24, 24, 27, 0.4);
  --text-primary: #ededed;
  --text-secondary: #a1a1aa;
  
  /* Cyber Accents */
  --accent-cyan: #06b6d4;
  --accent-blue: #3b82f6;
  --accent-green: #10b981;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-light: rgba(6, 182, 212, 0.3);
  
  --terminal-bg: #09090b;
  --terminal-header: #18181b;
  
  /* Fonts */
  --font-sans: 'Inter', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Shadows & Glow */
  --shadow-glow: 0 0 20px rgba(6, 182, 212, 0.15);
  --transition-normal: 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  letter-spacing: -0.01em;
}

/* CYBER BACKGROUND IMAGE FOR HOMELAB */
.homelab-section {
  position: relative;
  
}

.homelab-section > .container {
  position: relative;
  z-index: 1;
}

canvas#particles {
  z-index: 0 !important;
  position: fixed;
  top: 0; left: 0; width: 100vw; height: 100vh;
  z-index: -1; pointer-events: none; opacity: 0.4;
}

a { color: var(--text-primary); text-decoration: none; transition: var(--transition-normal); }
a:hover { color: var(--accent-cyan); }

h1, h2, h3, h4 { color: #ffffff; line-height: 1.2; font-weight: 600; }
h1 { font-size: 3.8rem; font-weight: 800; letter-spacing: -0.03em; margin-bottom: 1.5rem; }
h2 { font-size: 2.2rem; margin-bottom: 2rem; letter-spacing: -0.02em;}
h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }

.section-label {
  color: var(--text-secondary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.8rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
}

.container { width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 2rem; }
.section { padding: 8rem 0; position: relative; z-index: 1; }

/* HEADER */
.site-header {
  position: fixed; top: 0; left: 0; width: 100%;
  padding: 1.5rem 0; z-index: 100; transition: var(--transition-normal);
}
.site-header.scrolled {
  background: rgba(0, 0, 0, 0.96); backdrop-filter: blur(12px);
  padding: 1rem 0; border-bottom: 1px solid var(--border-color);
}
.nav { display: flex; justify-content: space-between; align-items: center; }
.logo {
  display: flex; align-items: center; gap: 0.75rem;
  font-weight: 700; color: #fff; font-size: 1.1rem;
}
.logo svg { color: var(--accent-cyan); }
.nav-links { display: flex; gap: 2rem; }
.nav-links a { color: var(--text-secondary); font-size: 0.85rem; background: #0a0a0a; border: 1px solid #27272a; padding: 0.4rem 1rem; border-radius: 99px; transition: all 0.3s; }
.nav-links a:hover, .nav-links a.active { color: #fff; background: #18181b; border-color: var(--accent-cyan); }

/* HERO */
.hero { min-height: 100vh; display: flex; align-items: center; padding-top: 80px; }
.hero-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 4rem; align-items: center; }
.gradient-text {
  background: linear-gradient(135deg, #fff 0%, #a1a1aa 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-subtitle { font-size: 1.1rem; color: var(--text-secondary); margin-bottom: 2.5rem; max-width: 500px; line-height: 1.8; }
.hero-subtitle strong { color: #fff; font-weight: 600; }
.hero-actions { display: flex; gap: 1rem; }
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.6rem 1.25rem; border-radius: 6px; font-weight: 500; font-size: 0.9rem;
  cursor: pointer; border: 1px solid transparent; transition: var(--transition-normal);
}
.btn.primary { background: #fff; color: #000; }
.btn.primary:hover { background: #e5e5e5; transform: translateY(-1px); }
.btn.secondary { background: var(--bg-secondary); border-color: var(--border-color); color: #fff; }
.btn.secondary:hover { background: #18181b; border-color: #3f3f46; transform: translateY(-1px); }

/* TERMINAL */
.hero-terminal {
  background: var(--terminal-bg); border-radius: 8px; overflow: hidden;
  border: 1px solid var(--border-color); font-family: var(--font-mono); font-size: 0.85rem;
}
.terminal-bar {
  background: var(--terminal-header); padding: 0.75rem 1rem;
  display: flex; align-items: center; gap: 0.5rem; border-bottom: 1px solid var(--border-color);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.red { background: #ef4444; } .dot.yellow { background: #f59e0b; } .dot.green { background: #10b981; }
.terminal-title { margin-left: auto; color: #52525b; font-size: 0.75rem; }
.terminal-body { padding: 1.5rem; color: #d4d4d8; }
.terminal-body p { margin-bottom: 0.5rem; }
.prompt { color: var(--accent-cyan); }
.cmd { color: var(--accent-blue); }
.output { color: #a1a1aa; margin-left: 1rem; }
.highlight { color: #fff; font-weight: 700; margin-top: 1.5rem; }
.blink { animation: blinker 1s linear infinite; }
@keyframes blinker { 50% { opacity: 0; } }

/* GRIDS & LAYOUTS */
.two-column { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.skill-grid, .project-list, .cert-grid, .service-grid, .education-list {
  display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.glass {
  background: var(--card-bg); border: 1px solid var(--border-color);
  padding: 2rem; border-radius: 12px; transition: all 0.3s ease;
}
.glass:hover { border-color: #3f3f46; background: rgba(39, 39, 42, 0.4); }

/* SVG ICONS */
.skill-icon, .service-icon, .cert-icon, .edu-icon, .highlight-icon {
  margin-bottom: 1.25rem; color: var(--text-primary);
  width: 24px; height: 24px;
}
.service-icon svg, .skill-icon svg, .cert-icon svg, .edu-icon svg, .highlight-icon svg {
  width: 100%; height: 100%;
}

/* HOMELAB SECTION REFINEMENT */
.scan-pulse {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background-color: var(--accent-cyan); margin-right: 12px;
  box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.7);
  animation: pulse-cyan 2s infinite cubic-bezier(0.66, 0, 0, 1);
}
@keyframes pulse-cyan { to { box-shadow: 0 0 0 12px rgba(6, 182, 212, 0); } }

.service-card { padding: 1.5rem; position: relative; }
.service-status {
  position: absolute; top: 1.5rem; right: 1.5rem;
  width: 6px; height: 6px; border-radius: 50%;
}
.service-status.running { background-color: var(--accent-green); box-shadow: 0 0 8px var(--accent-green); }
.arch-specs { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.5rem; margin-top: 1.5rem; }
.spec-label { font-size: 0.75rem; color: var(--text-secondary); text-transform: uppercase; font-weight: 600; display: block; margin-bottom: 0.3rem;}
.highlight-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; margin-top: 1.5rem; }
.highlight-item { display: flex; gap: 1rem; }
.expansion-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1rem; margin-top: 1.5rem; }
.expansion-item {
  padding: 1.25rem; background: rgba(24, 24, 27, 0.5);
  border-radius: 8px; border: 1px solid var(--border-color);
}
.expansion-status {
  font-size: 0.7rem; padding: 0.2rem 0.5rem; border-radius: 4px;
  text-transform: uppercase; margin-right: 0.75rem; font-weight: 600;
}
.expansion-status.active { background: rgba(16, 185, 129, 0.1); color: #10b981; border: 1px solid rgba(16,185,129,0.2); }

/* ALIGNMENT FIXES */
.arch-card { margin-top: 3rem; margin-bottom: 5rem; }
.services-title { margin-top: 4rem; margin-bottom: 3rem; display: flex; align-items: center; gap: 1rem; }
.service-grid { margin-bottom: 6rem; }
.security-highlights { margin-top: 4rem; margin-bottom: 6rem; }
.expansion-card { margin-top: 4rem; margin-bottom: 3rem; }

/* REVEAL */
.reveal { opacity: 0; transform: translateY(20px); transition: all 0.5s ease-out; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* TIMELINE */
.timeline { position: relative; border-left: 1px solid #27272a; padding-left: 2.5rem; display: flex; flex-direction: column; gap: 3rem; }
.timeline-dot { position: absolute; left: -5px; top: 6px; width: 9px; height: 9px; background: var(--text-secondary); border-radius: 50%; }

/* STATS */
.stats-row { display: flex; gap: 3rem; margin-top: 2rem; }
.stat-number, .stat-suffix { font-size: 2.5rem; font-weight: 700; color: #fff; }
.stat-label { display: block; font-size: 0.85rem; color: var(--text-secondary); }

/* TAGS */
.project-tags { margin-top: 1.5rem; display: flex; gap: 0.5rem; flex-wrap: wrap; }
.tag { font-size: 0.75rem; border: 1px solid #27272a; background: #0a0a0a; color: var(--text-secondary); padding: 0.3rem 0.8rem; border-radius: 99px; }
.project-badge { font-size: 0.75rem; color: var(--accent-cyan); font-weight: 600; margin-bottom: 0.75rem; }

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero-grid, .two-column { grid-template-columns: 1fr; }
  .hero-terminal { margin-top: 2rem; }
  h1 { font-size: 2.5rem; }
  .stats-row { flex-wrap: wrap; }
}
@media (max-width: 600px) { .nav-links { display: none; } }


/* Profile Logo in Header */
.profile-logo { width: 32px; height: 32px; border-radius: 50%; object-fit: cover; border: 1px solid var(--border-color); }


/* HERO PROFILE IMAGE */
.hero-profile-img {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(6, 182, 212, 0.4);
  box-shadow: 0 0 25px rgba(6, 182, 212, 0.15);
  margin-bottom: 1.5rem;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.hero-profile-img:hover {
  transform: scale(1.05);
  box-shadow: 0 0 35px rgba(6, 182, 212, 0.3);
}

/* FIX CANVAS BACKGROUND */
canvas#particles {
  z-index: 0 !important;
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  z-index: -1 !important;
  pointer-events: auto !important; /* to allow mouse interaction */
  opacity: 1 !important;
}


body { background-color: #000000; }
main { position: relative; z-index: 10; }
.homelab-section { background: transparent !important; }



/* Oculta o ponto (botão de nav do mobile) em desktop */
.nav-toggle { display: none; background: transparent; border: none; cursor: pointer; }
@media (max-width: 600px) { .nav-toggle { display: block; } }







/* TECH HEADING STACKED (EYEBROW STYLE WITH PROPER BREATHING ROOM) */
.tech-heading-stacked {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.1rem; /* Espaço bem visível e elegante entre o badge e o título */
  margin-bottom: 2rem;
}
.tech-heading-stacked h3 {
  margin: 0;
  font-size: 1.35rem;
  color: #ffffff;
  letter-spacing: -0.01em;
}
.tech-badge-pulse {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.25);
  padding: 0.3rem 0.75rem;
  border-radius: 4px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.pulse-dot-cyan {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
  display: inline-block;
  animation: pulse-glow 2s infinite ease-in-out;
}
.pulse-dot-green {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
  display: inline-block;
  animation: pulse-glow 2s infinite ease-in-out;
}
@keyframes pulse-glow {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}