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

/* ============================================================
   EFEITO DE LUZ DO CURSOR
   ============================================================ */
#cursor-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 420px;
  height: 420px;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(34,197,94,0.08) 0%, rgba(74,222,128,0.03) 40%, transparent 70%);
  border-radius: 50%;
  transition: opacity 0.4s ease;
  opacity: 0;
}

/* ============================================================
   TEMA ESCURO (padrão)
   ============================================================ */
:root,
[data-theme="dark"] {
  --bg-deep:    #050f0a;
  --bg-mid:     #071510;
  --bg-card:    #0a1f12;
  --bg-card-h:  #0d2818;
  --accent:     #22c55e;
  --accent-h:   #16a34a;
  --cyan:       #4ade80;
  --text-main:  #e2e8f0;
  --text-muted: #94a3b8;
  --border:     rgba(34, 197, 94, 0.22);
  --border-h:   rgba(34, 197, 94, 0.5);
  --shadow-sm:  0 2px 8px rgba(0,0,0,0.4);
  --shadow-md:  0 8px 24px rgba(0,0,0,0.5);
  --shadow-lg:  0 16px 48px rgba(0,0,0,0.6);
  --glow:       0 0 24px rgba(34,197,94,0.3);
  --nav-bg:     rgba(5, 15, 10, 0.6);
  --nav-bg-s:   rgba(5, 15, 10, 0.92);
  --hero-grad1: rgba(34,197,94,0.18);
  --hero-grad2: #050f0a;
  --hero-grad3: #071510;
}

/* ============================================================
   TEMA CLARO
   ============================================================ */
[data-theme="light"] {
  --bg-deep:    #f0faf4;
  --bg-mid:     #e0f5e9;
  --bg-card:    #ffffff;
  --bg-card-h:  #f0faf4;
  --accent:     #16a34a;
  --accent-h:   #15803d;
  --cyan:       #22c55e;
  --text-main:  #0f1f14;
  --text-muted: #475569;
  --border:     rgba(22, 163, 74, 0.2);
  --border-h:   rgba(22, 163, 74, 0.5);
  --shadow-sm:  0 2px 8px rgba(0,0,0,0.08);
  --shadow-md:  0 8px 24px rgba(0,0,0,0.1);
  --shadow-lg:  0 16px 48px rgba(0,0,0,0.12);
  --glow:       0 0 24px rgba(34,197,94,0.2);
  --nav-bg:     rgba(240, 250, 244, 0.75);
  --nav-bg-s:   rgba(240, 250, 244, 0.97);
  --hero-grad1: rgba(34,197,94,0.1);
  --hero-grad2: #f0faf4;
  --hero-grad3: #e0f5e9;
}

:root {
  /* Tipografia */
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
  /* Outros */
  --radius:     12px;
  --transition: 0.3s ease;
}

/* Transição global suave ao trocar de tema */
body,
#navbar,
.section,
.skill-card,
.timeline-card,
.project-card,
.contact-card,
.footer {
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

/* Durante a troca de tema, expande a transição para cobrir todos os elementos */
.theme-transitioning,
.theme-transitioning *,
.theme-transitioning *::before,
.theme-transitioning *::after {
  transition:
    background-color 0.45s ease,
    background      0.45s ease,
    color           0.45s ease,
    border-color    0.45s ease,
    box-shadow      0.45s ease !important;
}

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

body {
  font-family: var(--font);
  background: var(--bg-deep);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ============================================================
   UTILITÁRIOS
   ============================================================ */
.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

/* Tags de tecnologia */
.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 50px;
  font-size: 0.72rem;
  font-weight: 600;
  background: rgba(37,99,235,0.18);
  color: var(--accent-h);
  border: 1px solid var(--border);
  letter-spacing: 0.03em;
}

/* ============================================================
   BOTÕES
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 16px rgba(37,99,235,0.4);
}
.btn-primary:hover {
  background: var(--accent-h);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(37,99,235,0.55);
}

.btn-outline {
  background: transparent;
  color: var(--accent-h);
  border: 2px solid var(--accent);
}
.btn-outline:hover {
  background: rgba(37,99,235,0.12);
  transform: translateY(-2px);
  border-color: var(--accent-h);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 14px 36px;
  font-size: 1rem;
}

/* ============================================================
   SEÇÕES – LAYOUT BASE
   ============================================================ */
.section {
  padding: 90px 0;
  background: var(--bg-deep);
}

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

/* Cabeçalho de seção */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--text-main);
  position: relative;
  display: inline-block;
  margin-bottom: 12px;
}

/* Sublinhado decorativo no título */
.section-title::after {
  content: '';
  display: block;
  width: 56px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--cyan));
  border-radius: 2px;
  margin: 10px auto 0;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 520px;
  margin: 0 auto;
}

/* ============================================================
   ANIMAÇÃO DE REVEAL (scroll)
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   NAVBAR
   ============================================================ */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 0 20px;
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition), box-shadow var(--transition);
}

/* Navbar ao rolar – fica mais opaca */
#navbar.scrolled {
  background: var(--nav-bg-s);
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: 1100px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

/* Logo / nome */
.nav-logo {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color var(--transition);
  flex-shrink: 0;
}
.nav-logo:hover {
  color: var(--accent-h);
}

/* Menu */
.nav-menu {
  display: flex;
  list-style: none;
  gap: 6px;
  flex: 1;
  justify-content: center;
}

.nav-link {
  display: block;
  padding: 6px 14px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover,
.nav-link.active {
  color: var(--text-main);
  background: rgba(34,197,94,0.12);
}

/* ============================================================
   CONTROLES DA NAVBAR (idioma + tema)
   ============================================================ */
.nav-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* Seletor de idioma */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(34,197,94,0.08);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 3px;
}

.lang-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 5px;
  font-size: 1.1rem;
  line-height: 1;
  transition: background var(--transition), transform 0.2s ease, opacity 0.2s ease, box-shadow 0.2s ease;
  opacity: 0.5;
}

.lang-btn.active {
  background: var(--accent);
  opacity: 1;
}

.lang-btn:hover:not(.active) {
  background: rgba(34,197,94,0.18);
  opacity: 0.85;
  transform: scale(1.08);
}

/* Animação de clique na bandeira */
@keyframes lang-press {
  0%   { transform: scale(1);    box-shadow: none; }
  35%  { transform: scale(0.88); box-shadow: 0 0 0 4px rgba(34,197,94,0.25); }
  70%  { transform: scale(1.1);  box-shadow: 0 0 10px rgba(34,197,94,0.4); }
  100% { transform: scale(1);    box-shadow: none; }
}

.lang-btn.pressing {
  animation: lang-press 0.28s ease forwards;
}

/* Botão de tema */
.theme-btn {
  background: rgba(34,197,94,0.08);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-main);
  cursor: pointer;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  overflow: hidden;
  position: relative;
  transition: background var(--transition), color var(--transition), transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.theme-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  transform: scale(1.08);
}

/* Rotação do ícone ao trocar de tema */
@keyframes icon-spin {
  0%   { transform: rotate(0deg)   scale(1); }
  40%  { transform: rotate(200deg) scale(0.7); }
  100% { transform: rotate(360deg) scale(1); }
}

.theme-btn.spinning #themeIcon {
  animation: icon-spin 0.4s ease forwards;
}

/* Ripple no botão de tema */
.theme-btn .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.25);
  transform: scale(0);
  animation: ripple-expand 0.4s ease-out forwards;
  pointer-events: none;
}

@keyframes ripple-expand {
  to { transform: scale(3); opacity: 0; }
}

/* Hamburguer (mobile) */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  order: 3;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 100px 20px 60px;
}

/* Gradiente de fundo do hero */
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, var(--hero-grad1) 0%, transparent 70%),
    linear-gradient(160deg, var(--hero-grad2) 0%, var(--hero-grad3) 50%, var(--hero-grad2) 100%);
  z-index: 0;
  transition: background var(--transition);
}

/* Partículas flutuantes (geradas via JS) */
.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.particle {
  position: absolute;
  border-radius: 50%;
  background: rgba(34,197,94,0.4);
  animation: float linear infinite;
}

@keyframes float {
  0%   { transform: translateY(0) scale(1);   opacity: 0.6; }
  50%  { transform: translateY(-60px) scale(1.1); opacity: 0.3; }
  100% { transform: translateY(0) scale(1);   opacity: 0.6; }
}

/* Conteúdo centralizado */
.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
}

/* Foto circular no topo do hero */
.hero-avatar {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  margin: 0 auto 28px;
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 6px rgba(37,99,235,0.18), 0 8px 32px rgba(0,0,0,0.5);
  overflow: hidden;
  animation: fadeUp 0.65s ease both;
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 8%;
  display: block;
}

.hero-greeting {
  font-size: 1.05rem;
  color: var(--cyan);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 10px;
  animation: fadeUp 0.7s ease both;
}

.hero-title {
  font-size: clamp(2.6rem, 7vw, 4.2rem);
  font-weight: 800;
  line-height: 1.1;
  background: linear-gradient(135deg, #e2e8f0 0%, #93c5fd 60%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
  animation: fadeUp 0.8s 0.15s ease both;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 3vw, 1.45rem);
  font-weight: 400;
  color: var(--text-muted);
  margin-bottom: 20px;
  animation: fadeUp 0.8s 0.3s ease both;
}

.hero-description {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 520px;
  margin: 0 auto 36px;
  animation: fadeUp 0.8s 0.45s ease both;
}

.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeUp 0.8s 0.6s ease both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   HABILIDADES
   ============================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
}

.skill-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--glow);
  border-color: var(--border-h);
  background: var(--bg-card-h);
}

.skill-icon {
  font-size: 2.6rem;
  margin-bottom: 14px;
  color: var(--accent-h);
  transition: color var(--transition), transform var(--transition);
}

.skill-card:hover .skill-icon {
  color: var(--cyan);
  transform: scale(1.12);
}

.skill-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-main);
}

.skill-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ============================================================
   TIMELINE DE EXPERIÊNCIA
   ============================================================ */
.timeline {
  position: relative;
  padding: 20px 0;
}

/* Linha vertical central */
.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  background: linear-gradient(180deg, var(--accent) 0%, var(--cyan) 100%);
  border-radius: 2px;
  opacity: 0.5;
}

.timeline-item {
  display: flex;
  align-items: center;
  margin-bottom: 48px;
  position: relative;
  width: 50%;
}

/* Lado esquerdo */
.timeline-item.left {
  left: 0;
  justify-content: flex-end;
  padding-right: 48px;
}

/* Lado direito */
.timeline-item.right {
  left: 50%;
  justify-content: flex-start;
  padding-left: 48px;
}

/* Card da timeline */
.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  max-width: 420px;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.timeline-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--glow);
  border-color: var(--border-h);
}

.timeline-date {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.timeline-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
}

.timeline-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 14px;
}

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

/* Lista de itens dentro do card de desenvolvimento contínuo */
.timeline-list {
  list-style: none;
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.timeline-list li {
  font-size: 0.87rem;
  color: var(--text-muted);
  padding-left: 18px;
  position: relative;
}

.timeline-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-h);
}

/* Ponto central da timeline */
.timeline-dot {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent-h);
  border: 3px solid var(--bg-mid);
  box-shadow: 0 0 10px rgba(59,130,246,0.6);
  flex-shrink: 0;
}

.timeline-item.left  .timeline-dot { right: -7px; }
.timeline-item.right .timeline-dot { left: -7px; }

/* ============================================================
   PROJETOS
   ============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--glow);
  border-color: var(--border-h);
}

/* Placeholder visual para imagem do projeto */
.project-img-placeholder {
  width: 100%;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: rgba(255,255,255,0.6);
}

.pi-1 { background: linear-gradient(135deg, #1e3a5f 0%, #1e40af 100%); }
.pi-2 { background: linear-gradient(135deg, #1a3a2a 0%, #065f46 100%); }
.pi-3 { background: linear-gradient(135deg, #3b1d6e 0%, #6d28d9 100%); }

.project-card:hover .project-img-placeholder i {
  transform: scale(1.1);
  transition: transform var(--transition);
}

.project-body {
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.project-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.project-desc {
  font-size: 0.87rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
}

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

/* ============================================================
   CONTATO
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.contact-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--glow);
  border-color: var(--border-h);
  background: var(--bg-card-h);
}

.contact-icon {
  font-size: 2.2rem;
  color: var(--accent-h);
  transition: color var(--transition), transform var(--transition);
}

.contact-card:hover .contact-icon {
  color: var(--cyan);
  transform: scale(1.15);
}

.contact-label {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
}

.contact-value {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.contact-cta {
  text-align: center;
  margin-top: 8px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  padding: 24px 20px;
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ============================================================
   RESPONSIVO – Mobile First
   ============================================================ */

/* Tablet → até 768px */
@media (max-width: 768px) {

  /* Navbar mobile */
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: absolute;
    top: 64px;
    left: 0;
    width: 100%;
    flex-direction: column;
    background: var(--nav-bg-s);
    backdrop-filter: blur(14px);
    padding: 16px 0;
    gap: 2px;
    border-bottom: 1px solid var(--border);
    display: none;
    order: 4;
  }

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

  .nav-link {
    padding: 10px 24px;
    border-radius: 0;
  }

  /* Hero */
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  /* Timeline vertical simples no mobile */
  .timeline::before {
    left: 20px;
  }

  .timeline-item {
    width: 100%;
    left: 0 !important;
    padding-left: 52px !important;
    padding-right: 0 !important;
    justify-content: flex-start !important;
  }

  .timeline-dot {
    left: 13px !important;
    right: auto !important;
  }

  .timeline-card {
    max-width: 100%;
  }

  /* Projetos em coluna única */
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

/* Smartphones pequenos → até 480px */
@media (max-width: 480px) {
  .section {
    padding: 64px 0;
  }

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

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

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