/* ============================================================
   RENATO TAVARES — Personal Site Styles
   Organização: Variáveis → Reset → Base → Componentes → Seções → Animações → Responsividade
   ============================================================ */

/* ============================================================
   1. CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================================ */
:root {
  /* Marca / Paleta primária */
  --primary:       #6366f1;
  --primary-dark:  #4f46e5;
  --primary-light: #818cf8;
  --accent:        #8b5cf6;

  /* Gradiente de marca */
  --grad: linear-gradient(135deg, var(--primary), var(--accent));

  /* Tema claro (padrão) */
  --bg:          #fafafa;
  --bg-alt:      #f1f5f9;
  --card-bg:     #ffffff;
  --text:        #0d1117;
  --text-muted:  #5a6478;
  --border:      #dde3ed;
  --dot-color:   rgba(0,0,0,.055);
  --shadow-sm:   0 1px 3px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.05);
  --shadow:      0 6px 24px rgba(0,0,0,.09);
  --shadow-lg:   0 24px 56px rgba(0,0,0,.13);
  --shadow-card: 0 2px 12px rgba(0,0,0,.06);

  /* Tipografia */
  --font:         'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;

  /* Espaçamento */
  --section-py: 100px;
  --nav-h:      72px;
  --radius:     14px;
  --radius-sm:  8px;
  --radius-xs:  6px;
  --radius-full: 9999px;

  /* Transição padrão */
  --ease: 0.28s ease;
}

/* Tema escuro */
[data-theme="dark"] {
  --bg:          #080810;
  --bg-alt:      #0f0f18;
  --card-bg:     #15151f;
  --text:        #f0f4ff;
  --text-muted:  #8892a4;
  --border:      #23233a;
  --dot-color:   rgba(255,255,255,.028);
  --shadow-sm:   0 1px 3px rgba(0,0,0,.3);
  --shadow:      0 6px 24px rgba(0,0,0,.45);
  --shadow-lg:   0 24px 56px rgba(0,0,0,.55);
  --shadow-card: 0 2px 12px rgba(0,0,0,.35);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.66;
  transition: background-color var(--ease), color var(--ease);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ============================================================
   3. TIPOGRAFIA & UTILITÁRIOS
   ============================================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Texto com gradiente de marca */
.gradient-text {
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================================
   4. BOTÕES
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  font-size: .9375rem;
  font-weight: 600;
  letter-spacing: .01em;
  transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease, border-color .2s ease;
}

.btn:hover  { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 4px 16px rgba(99,102,241,.35);
}
.btn-primary:hover { box-shadow: 0 8px 24px rgba(99,102,241,.45); }

.btn-ghost {
  border: 2px solid var(--border);
  color: var(--text);
  background: transparent;
}
.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(99,102,241,.05);
}

.btn-sm {
  padding: 8px 20px;
  font-size: .875rem;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--border);
  color: var(--text-muted);
  transition: border-color .2s, color .2s, transform .2s;
}
.btn-sm:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
}

/* ============================================================
   5. NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: transparent;
  transition: background-color var(--ease), backdrop-filter var(--ease), box-shadow var(--ease);
}

/* Classe adicionada pelo JS ao rolar */
.navbar.scrolled {
  background: rgba(var(--bg-rgb, 255,255,255), .85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}
[data-theme="dark"] .navbar.scrolled {
  background: rgba(9,9,11,.88);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -.02em;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--ease), background-color var(--ease);
}
.nav-link:hover,
.nav-link.active {
  color: var(--text);
  background: var(--bg-alt);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Botão de tema */
.btn-theme {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: var(--radius-full);
  color: var(--text-muted);
  transition: background-color var(--ease), color var(--ease);
}
.btn-theme:hover { background: var(--bg-alt); color: var(--text); }

/* Ícones de tema — claro: mostrar lua; escuro: mostrar sol */
.icon-sun  { display: none; }
.icon-moon { display: block; }
[data-theme="dark"] .icon-sun  { display: block; }
[data-theme="dark"] .icon-moon { display: none; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  padding: 8px;
  transition: background-color var(--ease);
}
.hamburger:hover { background: var(--bg-alt); }
.hamburger span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   6. HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  overflow: hidden;
}

/* Brilho de fundo atmosférico */
.hero-glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 75% 65% at 68% 38%, rgba(99,102,241,.15) 0%, transparent 62%),
    radial-gradient(ellipse 55% 45% at 18% 72%, rgba(139,92,246,.1) 0%, transparent 58%),
    radial-gradient(ellipse 40% 35% at 85% 80%, rgba(99,102,241,.07) 0%, transparent 55%);
  pointer-events: none;
}
[data-theme="dark"] .hero-glow {
  background:
    radial-gradient(ellipse 75% 65% at 68% 38%, rgba(99,102,241,.28) 0%, transparent 62%),
    radial-gradient(ellipse 55% 45% at 18% 72%, rgba(139,92,246,.18) 0%, transparent 58%),
    radial-gradient(ellipse 40% 35% at 85% 80%, rgba(99,102,241,.12) 0%, transparent 55%);
}

/* Grade de pontos no hero */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--dot-color) 1.2px, transparent 1.2px);
  background-size: 30px 30px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 85% 85% at 50% 50%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 85% 85% at 50% 50%, black 30%, transparent 80%);
  z-index: 0;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 64px;
  padding-top: 48px;
  padding-bottom: 48px;
}

.hero-content { max-width: 600px; position: relative; z-index: 1; }
.hero-card { position: relative; z-index: 1; }

/* Badge de disponibilidade */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(99,102,241,.3);
  background: rgba(99,102,241,.08);
  font-size: .8125rem;
  font-weight: 500;
  color: var(--primary-light);
  margin-bottom: 28px;
}
.badge-pulse {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 0 rgba(34,197,94,.4);
  animation: pulse 2s infinite;
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5rem);
  font-weight: 800;
  letter-spacing: -.045em;
  line-height: 1.05;
  margin-bottom: 22px;
}

.hero-role {
  font-size: clamp(.95rem, 2vw, 1.1rem);
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: .01em;
  margin-bottom: 20px;
}
.role-sep { margin: 0 8px; color: var(--border); }

.hero-sub {
  font-size: 1.0625rem;
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: 36px;
}

.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* Card flutuante */
.hero-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  min-width: 220px;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.hcard-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
}
.hcard-divider {
  height: 1px;
  background: var(--border);
}
.hcard-key {
  font-size: .8rem;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
}
.hcard-val {
  font-size: .875rem;
  font-weight: 600;
  text-align: right;
}
.hcard-active {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #22c55e;
}
.status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #22c55e;
  animation: pulse 2s infinite;
}

/* Indicador de scroll */
.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.scroll-dot {
  width: 24px; height: 40px;
  border: 2px solid var(--border);
  border-radius: var(--radius-full);
  position: relative;
}
.scroll-dot::before {
  content: '';
  position: absolute;
  top: 6px; left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 8px;
  background: var(--primary);
  border-radius: var(--radius-full);
  animation: scrollDown 1.8s ease infinite;
}

/* ============================================================
   7. SEÇÕES — GENÉRICO
   ============================================================ */
.section {
  padding: var(--section-py) 0;
}
.section-alt {
  background-color: var(--bg-alt);
  background-image: radial-gradient(circle, var(--dot-color) 1.2px, transparent 1.2px);
  background-size: 28px 28px;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  background: rgba(99,102,241,.1);
  color: var(--primary);
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -.035em;
  line-height: 1.12;
}
.section-sub {
  color: var(--text-muted);
  font-size: 1.0625rem;
  margin-top: 12px;
}

/* ============================================================
   8. SOBRE MIM
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 64px;
  align-items: start;
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 18px;
  font-size: 1.0625rem;
  line-height: 1.75;
}
.about-text p:last-child { margin-bottom: 0; }
.about-text strong { color: var(--text); font-weight: 600; }

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: box-shadow var(--ease), transform var(--ease);
}
.stat-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.stat-num {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -.045em;
}
.stat-lbl {
  font-size: .8125rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ============================================================
   9. ÁREAS DE ATUAÇÃO
   ============================================================ */
.areas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 20px;
}

.area-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
  overflow: hidden;
  transition: box-shadow var(--ease), transform var(--ease), border-color var(--ease);
}
.area-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s ease;
}
.area-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); border-color: rgba(99,102,241,.25); }
.area-card:hover::before { transform: scaleX(1); }
.area-card h3 {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  margin: 16px 0 10px;
  letter-spacing: -.02em;
}
.area-card p {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* Ícone do card */
.area-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}
.icon--indigo  { background: rgba(99,102,241,.12);  color: #6366f1; }
.icon--violet  { background: rgba(139,92,246,.12); color: #8b5cf6; }
.icon--blue    { background: rgba(59,130,246,.12);  color: #3b82f6; }
.icon--emerald { background: rgba(16,185,129,.12); color: #10b981; }
.icon--green   { background: rgba(34,197,94,.12);  color: #22c55e; }
.icon--rose    { background: rgba(244,63,94,.12);  color: #f43f5e; }
.icon--amber   { background: rgba(245,158,11,.12); color: #f59e0b; }

/* ============================================================
   10. TECNOLOGIAS
   ============================================================ */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.tech-cat {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.tech-cat-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .9375rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.skill-list { display: flex; flex-direction: column; gap: 14px; }

.skill-item {}

.skill-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}
.skill-info > span:first-child {
  font-size: .875rem;
  font-weight: 500;
  color: var(--text);
}
.skill-pct {
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.skill-bar {
  height: 6px;
  background: var(--border);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.skill-fill {
  height: 100%;
  width: 0;
  background: var(--grad);
  border-radius: var(--radius-full);
  transition: width 1.2s cubic-bezier(.65,0,.35,1);
  box-shadow: 0 0 10px rgba(99,102,241,.45);
}

/* ============================================================
   11. PROJETOS
   ============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.proj-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  overflow: hidden;
  transition: box-shadow var(--ease), transform var(--ease), border-color var(--ease);
}
.proj-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s ease;
}
.proj-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); border-color: rgba(99,102,241,.25); }
.proj-card:hover::before { transform: scaleX(1); }

.proj-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.proj-tag {
  font-size: .75rem;
  font-weight: 600;
  color: var(--primary);
  background: rgba(99,102,241,.1);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  letter-spacing: .02em;
}
.proj-ext {
  color: var(--text-muted);
  transition: color var(--ease);
}
.proj-ext:hover { color: var(--primary); }

.proj-name {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -.025em;
}
.proj-desc {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.65;
  flex: 1;
}
.proj-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.proj-stack span {
  font-size: .75rem;
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  padding: 3px 8px;
}

/* ============================================================
   12. EXPERIÊNCIA — TIMELINE
   ============================================================ */
.exp-timeline {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.exp-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-left: 4px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: box-shadow var(--ease), border-left-color var(--ease);
}
.exp-item:hover { box-shadow: var(--shadow); }
.exp-item--current { border-left-color: var(--primary); }

.exp-item-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 10px;
}
.exp-item-left {
  display: flex;
  align-items: center;
  gap: 14px;
}
.exp-co-logo {
  flex-shrink: 0;
  width: 46px; height: 46px;
  border-radius: var(--radius-sm);
  background: rgba(99,102,241,.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: .8125rem;
  letter-spacing: -.01em;
}
.exp-item-role {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -.02em;
  margin-bottom: 2px;
}
.exp-item-company {
  font-size: .875rem;
  font-weight: 600;
  color: var(--primary);
}
.exp-item-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 3px;
  flex-shrink: 0;
}
.exp-badge {
  padding: 2px 10px;
  border-radius: var(--radius-full);
  background: rgba(34,197,94,.12);
  color: #16a34a;
  font-size: .75rem;
  font-weight: 700;
}
[data-theme="dark"] .exp-badge { color: #4ade80; }

.exp-item-period {
  font-size: .8125rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  white-space: nowrap;
}
.exp-item-dur {
  font-size: .75rem;
  color: var(--text-muted);
}
.exp-item-loc {
  font-size: .8125rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.exp-item-desc {
  font-size: .9375rem;
  color: var(--text-muted);
  line-height: 1.72;
  margin-bottom: 16px;
}
.exp-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.exp-tags span {
  font-size: .78rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  padding: 3px 9px;
}

/* ============================================================
   13. CONTATO
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.contact-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  transition: box-shadow var(--ease), transform var(--ease), border-color var(--ease);
}
.contact-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
  border-color: rgba(99,102,241,.35);
}
.contact-icon {
  width: 56px; height: 56px;
  border-radius: var(--radius-sm);
  background: rgba(99,102,241,.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--ease);
}
.contact-card:hover .contact-icon { background: rgba(99,102,241,.18); }

.contact-lbl {
  font-size: .8125rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .05em;
}
.contact-val {
  font-size: .9375rem;
  font-weight: 600;
  color: var(--text);
  word-break: break-all;
}

/* ============================================================
   14. FOOTER
   ============================================================ */
.footer {
  background: var(--bg-alt);
  background-image: radial-gradient(circle, var(--dot-color) 1.2px, transparent 1.2px);
  background-size: 28px 28px;
  border-top: 1px solid var(--border);
  padding: 52px 0;
  position: relative;
}
.footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad);
  opacity: .6;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}
.footer-logo {
  font-size: 1.1rem;
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.footer-name {
  font-size: .9375rem;
  font-weight: 600;
}
.footer-tagline {
  font-size: .8125rem;
  color: var(--text-muted);
}
.footer-links {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .875rem;
  color: var(--text-muted);
}
.footer-links a {
  transition: color var(--ease);
}
.footer-links a:hover { color: var(--primary); }
.footer-copy {
  font-size: .8125rem;
  color: var(--text-muted);
}

/* ============================================================
   15. ANIMAÇÕES
   ============================================================ */
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(34,197,94,.4); }
  70%  { box-shadow: 0 0 0 8px rgba(34,197,94,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); }
}

@keyframes scrollDown {
  0%   { transform: translateX(-50%) translateY(0); opacity: 1; }
  100% { transform: translateX(-50%) translateY(14px); opacity: 0; }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Atraso escalonado para grupos de cards */
.area-card:nth-child(2),
.proj-card:nth-child(2),
.contact-card:nth-child(2),
.stat-card:nth-child(2) { transition-delay: .05s; }

.area-card:nth-child(3),
.proj-card:nth-child(3),
.contact-card:nth-child(3),
.stat-card:nth-child(3) { transition-delay: .1s; }

.area-card:nth-child(4),
.proj-card:nth-child(4),
.stat-card:nth-child(4) { transition-delay: .15s; }

.area-card:nth-child(5),
.proj-card:nth-child(5) { transition-delay: .2s; }
.area-card:nth-child(6),
.proj-card:nth-child(6) { transition-delay: .25s; }
.area-card:nth-child(7) { transition-delay: .3s; }

/* ============================================================
   16. RESPONSIVIDADE
   ============================================================ */

/* Tablet (≤ 1024px) */
@media (max-width: 1024px) {
  :root { --section-py: 72px; }

  .tech-grid    { grid-template-columns: 1fr 1fr; }
  .projects-grid { grid-template-columns: 1fr 1fr; }
  .about-grid   { grid-template-columns: 1fr; gap: 40px; }
  .about-stats  { grid-template-columns: repeat(4, 1fr); }

  .hero-layout  { grid-template-columns: 1fr; gap: 40px; }
  .hero-card    { display: none; } /* ocultar card no tablet */
}

/* Mobile (≤ 768px) */
@media (max-width: 768px) {
  :root { --section-py: 56px; --nav-h: 64px; }

  /* Navbar mobile */
  .nav-links {
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 16px;
    gap: 4px;
    transform: translateY(-110%);
    opacity: 0;
    transition: transform .3s ease, opacity .3s ease;
    z-index: 99;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
  }
  .nav-link { padding: 10px 16px; border-radius: var(--radius-sm); width: 100%; }
  .hamburger { display: flex; }

  /* Hero */
  .hero-name    { font-size: clamp(2rem, 10vw, 3.2rem); }
  .hero-sub     { font-size: .975rem; }
  .hero-card    { display: none; }
  .scroll-hint  { display: none; }

  /* Grids → 1 coluna */
  .tech-grid      { grid-template-columns: 1fr; }
  .projects-grid  { grid-template-columns: 1fr; }
  .areas-grid     { grid-template-columns: 1fr 1fr; }
  .contact-grid   { grid-template-columns: 1fr; }
  .about-stats    { grid-template-columns: 1fr 1fr; }

  /* Experiência */
  .exp-item { padding: 20px; }
  .exp-item-header { flex-direction: column; gap: 10px; }
  .exp-item-right  { align-items: flex-start; flex-direction: row; flex-wrap: wrap; gap: 6px; }
}

/* Mobile pequeno (≤ 480px) */
@media (max-width: 480px) {
  .areas-grid { grid-template-columns: 1fr; }
  .hero-cta   { flex-direction: column; }
  .btn        { justify-content: center; }
}