/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0a0a0a;
  --bg-surface: #111111;
  --bg-surface2: #181818;
  --border: #222222;
  --border-hover: #333333;
  --text: #e8e8e8;
  --text-muted: #777777;
  --text-subtle: #444444;
  --accent: #8b5cf6;
  --accent-hover: #7c3aed;
  --accent-glow: rgba(139, 92, 246, 0.15);
  --accent-glow-strong: rgba(139, 92, 246, 0.3);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.2s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

img {
  display: block;
  max-width: 100%;
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  height: 64px;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.navbar.scrolled {
  border-bottom-color: var(--border);
}

.nav-logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.5px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: lowercase;
  transition: color var(--transition);
}

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

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px 8px;
}

.lang-btn {
  background: none;
  border: none;
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-subtle);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 5px;
  transition: all var(--transition);
  letter-spacing: 0.08em;
}

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

.lang-btn:not(.active):hover {
  color: var(--text-muted);
}

.lang-sep {
  color: var(--text-subtle);
  font-size: 11px;
  user-select: none;
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 120px 40px 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(139, 92, 246, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 80%, rgba(139, 92, 246, 0.06) 0%, transparent 50%);
  pointer-events: none;
}

/* subtle grid lines */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  text-align: center;
  max-width: 760px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(139, 92, 246, 0.08);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 13px;
  color: #a78bfa;
  margin-bottom: 32px;
  font-weight: 500;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  background: #4ade80;
  border-radius: 50%;
  animation: pulse 2s infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.hero-name {
  font-size: clamp(48px, 8vw, 88px);
  font-weight: 800;
  letter-spacing: -3px;
  line-height: 1;
  color: var(--text);
  margin-bottom: 16px;
}

.hero-title {
  font-size: clamp(18px, 3vw, 26px);
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.hero-sub {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 48px;
  letter-spacing: 0.01em;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 10px;
  transition: all var(--transition);
  box-shadow: 0 0 24px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 32px var(--accent-glow-strong);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-surface);
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  padding: 12px 20px;
  border-radius: 10px;
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.btn-ghost:hover {
  color: var(--text);
  border-color: var(--border-hover);
  background: var(--bg-surface2);
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollAnim 1.8s ease-in-out infinite;
}

@keyframes scrollAnim {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================
   SECTIONS
   ============================================ */
.section {
  padding: 100px 40px;
}

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

.container {
  max-width: 1600px;
  margin: 0 auto;
}

.section-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 16px;
}

.section-header {
  text-align: center;
  max-width: 520px;
  margin: 0 auto 64px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-muted);
}

/* ============================================
   SOBRE
   ============================================ */
.sobre-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 80px;
  align-items: center;
}

.sobre-foto-wrap {
  position: relative;
}

.sobre-foto {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  object-position: top center;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.foto-glow {
  position: absolute;
  inset: -2px;
  border-radius: calc(var(--radius-lg) + 2px);
  background: linear-gradient(135deg, var(--accent-glow), transparent 60%);
  z-index: -1;
}

.sobre-bio {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 32px;
}

.stack-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.stack-badge {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 12px;
  transition: all var(--transition);
}

.stack-badge:hover {
  color: var(--text);
  border-color: var(--border-hover);
}

/* ============================================
   STACK CATEGORIAS
   ============================================ */
.stack-categorias {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.stack-cat {
  background: var(--bg-surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  transition: border-color var(--transition);
}

.stack-cat:hover {
  border-color: var(--border-hover);
}

.stack-cat-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.stack-cat-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

@media (max-width: 1024px) {
  .stack-categorias {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .stack-categorias {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   PROJETOS GRID
   ============================================ */
.projetos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 24px;
}

.projeto-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
}

.projeto-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--border-hover);
}

.card-img-link {
  display: block;
}

.card-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--bg-surface2);
}

.card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.projeto-card:hover .card-img {
  transform: scale(1.04);
}

.card-img-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.projeto-card:hover .card-img-overlay {
  opacity: 1;
}

.card-live {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  padding: 8px 20px;
  border-radius: 8px;
  letter-spacing: 0.02em;
}

.card-body {
  padding: 20px 24px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.card-header-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-icon {
  font-size: 20px;
  line-height: 1;
}

.card-category {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 5px;
  padding: 3px 9px;
}

.card-detail {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.card-detail-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.card-detail-text {
  font-size: 12.5px;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}

.card-pipeline {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  counter-reset: pipeline;
}

.card-pipeline li {
  counter-increment: pipeline;
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.card-pipeline li::before {
  content: counter(pipeline);
  font-size: 10px;
  font-weight: 700;
  color: var(--accent);
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 4px;
  padding: 1px 6px;
  flex-shrink: 0;
}

.card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.3px;
}

.card-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

.card-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.badge {
  font-size: 11px;
  font-weight: 500;
  color: #a78bfa;
  background: rgba(139, 92, 246, 0.08);
  border: 1px solid rgba(139, 92, 246, 0.15);
  border-radius: 5px;
  padding: 3px 9px;
}

/* ============================================
   CONTATO
   ============================================ */
.contato-wrap {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.contato-desc {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 48px;
}

.contato-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contato-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 24px;
  text-align: left;
  transition: all var(--transition);
}

.contato-item:hover {
  border-color: var(--accent);
  background: var(--bg-surface2);
  box-shadow: 0 0 0 1px rgba(139, 92, 246, 0.1);
}

.contato-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-glow);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

.contato-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-subtle);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 2px;
}

.contato-value {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: 28px 40px;
  text-align: center;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-subtle);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .sobre-grid {
    grid-template-columns: 220px 1fr;
    gap: 48px;
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 0 20px;
  }

  .nav-link {
    display: none;
  }

  .section {
    padding: 72px 20px;
  }

  .hero {
    padding: 100px 20px 80px;
  }

  .sobre-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .sobre-foto-wrap {
    max-width: 220px;
    margin: 0 auto;
  }

  .sobre-foto {
    aspect-ratio: 1/1;
  }

  .projetos-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-primary,
  .btn-ghost {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-name {
    letter-spacing: -2px;
  }

  .section-title {
    letter-spacing: -0.5px;
  }

  .contato-item {
    padding: 14px 16px;
  }
}