/* =========================
    Design System
    ========================= */
:root {
  /* Cores — tema claro minimalista */
  --color-bg: #ffffff; /* fundo branco puro */
  --color-surface: #ffffff;
  --color-elev: #ffffff; /* leve elevação -> alterado para branco */
  --color-primary: #2563eb; /* Azul moderno (tech startup) */
  --color-accent: #0ea5e9; /* Ciano vibrante */
  --color-border: #e5e7eb; /* cinza suave */
  --color-text: #111827; /* cinza bem escuro */
  --color-muted: #4b5563; /* cinza mais escuro para melhor contraste */
  --color-focus: #93c5fd;

  /* Tipografia */
  --font-sans:
    'Inter', system-ui, -apple-system, Segoe UI, Roboto, Ubuntu,
    'Helvetica Neue', Arial, sans-serif;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.5rem;
  --fs-2xl: 2rem;

  /* Espaçamentos */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;

  /* Bordas e sombras */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.18);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.28);

  /* Layout */
  --container-max: 1100px;
}

/* Reset básico e acessibilidade */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.6;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--color-text);
  text-decoration: none;
}
a:focus,
button:focus,
input:focus,
textarea:focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

/* ==========================================================================
   Fundo de Partículas Interativas
   ========================================================================== */
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1; /* Fica atrás de tudo */
  pointer-events: none; /* Permite que o usuário clique nos elementos da página através dele */
}

/* Utilitários de layout */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--sp-5);
}
.section {
  padding: var(--sp-8) 0;
}
.grid {
  display: grid;
  gap: var(--sp-5);
}
.grid.cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

/* Cabeçalho e navegação */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-4) 0;
}
.logo {
  font-weight: 700;
  font-size: var(--fs-lg);
  letter-spacing: 0.3px;
}
.accent {
  color: var(--color-accent);
}
.nav-links {
  display: flex;
  gap: var(--sp-4);
  align-items: center;
}
/* Botões do menu minimalistas */
a.nav-link,
a.mobile-nav-link,
button.nav-link,
button.mobile-nav-link {
  -webkit-appearance: none;
  appearance: none;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--color-muted);
  font-weight: 500;
}
.nav-link {
  position: relative;
  padding: 8px 16px;
  border-radius: 999px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-block;
}
.nav-link::after {
  display: none;
}
.nav-link:hover,
.nav-link:focus {
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.08);
}
.nav-link.is-active {
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.12);
}
.mobile-menu-btn {
  display: none;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: transparent;
  align-items: center;
  justify-content: center;
  gap: 3px;
}
.mobile-menu-btn span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-text);
}
.mobile-menu {
  display: none;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}
.mobile-menu.active {
  display: grid;
  padding: var(--sp-3) var(--sp-5);
  gap: var(--sp-3);
}
.mobile-nav-link {
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-sm);
  color: var(--color-muted);
  text-align: left;
}
.mobile-nav-link:hover,
.mobile-nav-link:focus {
  background: #f5f7fa; /* Fundo sutil no hover para contraste */
  color: var(--color-text);
}

/* Botão de Tema */
.theme-toggle-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 1.15rem;
  box-shadow: var(--shadow-sm);
  margin-left: var(--sp-2);
}
.theme-toggle-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.15);
  color: var(--color-primary);
  border-color: rgba(37, 99, 235, 0.3);
}
.theme-toggle-btn i {
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.theme-toggle-btn:hover i {
  transform: rotate(-15deg) scale(1.15);
}

/* Títulos e texto */
.section-title {
  font-size: var(--fs-2xl);
  line-height: 1.2;
  margin: 0 0 var(--sp-5);
  letter-spacing: 0.2px;
}
.lead {
  color: var(--color-muted);
  font-size: var(--fs-lg);
  margin-bottom: var(--sp-6);
}

/* Botões */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}
.btn-sm {
  padding: 8px 12px;
  font-size: var(--fs-sm);
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.35);
  filter: brightness(1.08);
}
.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-outline:hover {
  transform: translateY(-2px);
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* Cards */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--sp-5);
  box-shadow: var(--shadow-sm);
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  transition:
    transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
    box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.card-title {
  font-size: var(--fs-xl);
  margin: 0 0 var(--sp-3);
}

/* ==========================================================================
   Serviços / Especialidades (SaaS Level)
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--sp-5);
  margin-top: var(--sp-6);
}
.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 24px; /* Raio grande moderno */
  padding: var(--sp-6);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03); /* Sombra elegante */
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.service-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 16px 32px rgba(37, 99, 235, 0.12); /* Sombra azul suave no hover */
  border-color: rgba(37, 99, 235, 0.2);
  z-index: 10;
}
.service-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: var(--sp-4);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.service-card:hover .service-icon {
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-accent)
  );
  color: #fff;
  transform: rotate(5deg) scale(1.1);
  box-shadow: 0 8px 16px rgba(14, 165, 233, 0.2);
}
.service-card h3 {
  font-size: var(--fs-lg);
  margin: 0 0 var(--sp-2) 0;
  font-weight: 700;
  color: var(--color-text);
}
.service-card p {
  color: var(--color-muted);
  font-size: var(--fs-sm);
  margin: 0;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Projetos */
.project-filters {
  display: flex;
  justify-content: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-6);
  flex-wrap: wrap;
}
.filter-btn {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  padding: 8px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: var(--fs-sm);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}
.filter-btn.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--sp-5);
}
.project-card {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  border-radius: 20px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.project-card:hover {
  transform: translateY(-8px) scale(1.03);
  box-shadow: 0 16px 32px rgba(37, 99, 235, 0.12);
  border-color: rgba(37, 99, 235, 0.2);
  z-index: 10;
}
.project-media {
  height: 180px;
  background: var(--color-elev);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
  display: block;
}
.project-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.project-card:hover .project-media img {
  transform: scale(1.08);
}
.project-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(37, 99, 235, 0.95);
  color: #fff;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  z-index: 2;
  backdrop-filter: blur(4px);
}
.project-media.placeholder {
  background: linear-gradient(
    135deg,
    rgba(37, 99, 235, 0.08),
    rgba(14, 165, 233, 0.08)
  );
  color: rgba(37, 99, 235, 0.6);
}
.project-body {
  padding: var(--sp-5);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}
.chip-row {
  display: flex;
  gap: var(--sp-2);
  margin: 0;
}
.project-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--sp-4);
  border-top: 1px solid var(--color-border);
  padding-top: var(--sp-3);
}
.project-stars {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-muted);
}
.project-stars i {
  color: #fbbf24;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(37, 99, 235, 0.08);
  color: var(--color-primary);
  border-color: rgba(37, 99, 235, 0.2);
}
.project-links {
  display: flex;
  gap: var(--sp-3);
  margin-top: auto;
}
.project-links .btn {
  flex: 1;
  justify-content: center;
}
.view-all-projects {
  text-align: center;
  margin-top: var(--sp-6);
}

.actions {
  display: flex;
  gap: var(--sp-3);
}

/* Resume & Certifications */
.resume-actions {
  display: flex;
  gap: var(--sp-3);
  margin: var(--sp-5) 0 var(--sp-6);
}
.resume-viewer {
  margin-top: var(--sp-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-elev);
}
.certs-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--sp-5);
}
.cert-card p {
  color: var(--color-muted);
}
@media (max-width: 1024px) {
  .certs-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 768px) {
  .certs-grid {
    grid-template-columns: 1fr;
  }
}

/* Formulário */
.form {
  display: grid;
  gap: var(--sp-4);
  max-width: 680px;
}
.form-control {
  display: grid;
  gap: var(--sp-2);
}
label {
  font-weight: 600;
  color: var(--color-text);
}
input,
textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-elev);
  color: var(--color-text);
}
input::placeholder,
textarea::placeholder {
  color: var(--color-muted);
}
.error-message {
  color: #fca5a5;
  font-size: var(--fs-sm);
  min-height: 18px;
}

/* Contato */
.contact-content {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: var(--sp-6);
  align-items: start;
}
.contact-info {
  display: grid;
  gap: var(--sp-4);
}
.contact-info h3 {
  margin: 0;
}
.info-item {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: var(--sp-3) 0;
}
.info-icon {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(59, 130, 246, 0.12);
  color: var(--color-primary);
  flex-shrink: 0;
}
.info-icon i {
  font-size: 18px;
}
.info-content h4 {
  margin: 0 0 4px;
  font-size: var(--fs-base);
  color: var(--color-muted);
}
.info-content a,
.info-content p {
  margin: 0;
}
.social-connect {
  margin-top: var(--sp-5);
}
.social-icons {
  display: flex;
  gap: var(--sp-3);
}
.social-icons a {
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  background: var(--color-elev);
}
.social-icons a:hover {
  background: #f5f7fa;
}

/* Rodapé */
.footer {
  border-top: 1px solid var(--color-border);
  padding: var(--sp-6) 0;
  color: var(--color-muted);
}

/* Responsividade */

/* =========================
    Mapeamento de classes existentes
    ========================= */
.hero-section,
.about-section,
.skills-section,
.projects-section,
.contact-section {
  padding: var(--sp-8) 0;
}
.social-links {
  display: flex;
  gap: var(--sp-3);
  margin-top: var(--sp-5);
}
.social-links a {
  display: inline-flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  background: var(--color-elev);
}
.social-links a:hover {
  background: #f5f7fa;
}

/* Botões herdados */
.primary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-weight: 600;
  border: 1px solid transparent;
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}
.primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  filter: brightness(1.08);
}
.outline-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-weight: 600;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text);
  transition: all 0.2s ease;
}
.outline-btn:hover {
  transform: translateY(-2px);
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* Hero */
.hero-content {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sp-6);
  align-items: center;
}
.hero-text h1 {
  font-size: 2.25rem;
  margin: 0 0 var(--sp-3);
}
.hero-text h2 {
  font-size: var(--fs-xl);
  color: var(--color-muted);
  margin: 0 0 var(--sp-4);
}
.typewriter-cursor {
  color: var(--color-primary);
  font-weight: 300;
  animation: blinkCursor 0.8s step-end infinite;
  margin-left: 2px;
}
@keyframes blinkCursor {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}
.hero-buttons {
  display: flex;
  gap: var(--sp-3);
  margin-top: var(--sp-4);
}
.text-primary {
  color: var(--color-primary);
}
@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-15px);
  }
}
.image-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  animation: float 6s ease-in-out infinite;
}

/* Sobre / Features */
.about-content {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--sp-5);
}
.about-text {
  grid-column: span 2;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  box-shadow: 0 8px 32px rgba(37, 99, 235, 0.05);
}
.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--sp-4);
}
.feature-icon {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(59, 130, 246, 0.16);
  color: var(--color-primary);
  margin-bottom: var(--sp-3);
}

/* ==========================================================================
   Stack & Expertise (SaaS Style)
   ========================================================================== */
.skills-header {
  margin-bottom: var(--sp-6);
}
.proof-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-top: var(--sp-4);
}
.proof-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--color-primary);
  border-radius: 999px;
  font-size: var(--fs-sm);
  font-weight: 600;
  border: 1px solid rgba(37, 99, 235, 0.2);
}
.skills-layout {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: var(--sp-7);
}
.skills-categories h3,
.main-stack h3 {
  font-size: var(--fs-xl);
  margin-bottom: var(--sp-5);
  color: var(--color-text);
}
.category-group {
  margin-bottom: var(--sp-5);
}
.category-group h4 {
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-muted);
  margin-bottom: var(--sp-3);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 8px;
}
.skill-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
}
.skill-name {
  font-weight: 500;
  color: var(--color-text);
}
.skill-level {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 6px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.skill-level.principal {
  background: rgba(37, 99, 235, 0.12);
  color: var(--color-primary);
}
.skill-level.forte {
  background: rgba(75, 85, 99, 0.08);
  color: var(--color-text);
}
.skill-level.familiar {
  background: transparent;
  color: var(--color-muted);
  border: 1px solid var(--color-border);
}
.stack-grid {
  display: grid;
  gap: var(--sp-4);
}
.stack-card {
  display: flex;
  gap: var(--sp-4);
  padding: var(--sp-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
}
.stack-card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.15);
  border-color: rgba(37, 99, 235, 0.3);
}
.stack-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
  transition: all 0.3s ease;
}
.stack-card:hover .stack-icon {
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-accent)
  );
  color: #fff;
  transform: rotate(-8deg) scale(1.15);
}
.stack-info h4 {
  margin: 0 0 6px 0;
  font-size: var(--fs-base);
  color: var(--color-text);
}
.stack-info p {
  margin: 0;
  font-size: var(--fs-sm);
  color: var(--color-muted);
  line-height: 1.5;
}

/* Scroll to Top */
.scroll-top-btn {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-elev);
  color: var(--color-text);
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}
.scroll-top-btn.active {
  display: inline-flex;
}

/* Toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 20px;
  transform: translateX(-50%);
  background: var(--color-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  display: none;
}
.toast.active {
  display: block;
}
.toast-content {
  display: grid;
  grid-template-columns: 40px 1fr 40px;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
}
.toast-icon.success {
  color: #34d399;
}
.toast-title {
  font-weight: 600;
}
.toast-message {
  color: var(--color-muted);
}

/* ==========================================================================
   Tooltips Elegantes
   ========================================================================== */
[data-tooltip] {
  position: relative;
}

/* Balão do Tooltip */
[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--color-text); /* Dinâmico com o tema claro/escuro */
  color: var(--color-bg);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  z-index: 20;
  box-shadow: var(--shadow-md);
}

/* Setinha do Tooltip */
[data-tooltip]::before {
  content: '';
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  border-width: 5px;
  border-style: solid;
  border-color: var(--color-text) transparent transparent transparent;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  z-index: 20;
}

/* Animação no Hover */
[data-tooltip]:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(-8px);
}
[data-tooltip]:hover::before {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(-3px);
}

/* ==========================================================================
   Modal de Projeto
   ========================================================================== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-4);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}
.modal.active {
  opacity: 1;
  visibility: visible;
}
.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(17, 24, 39, 0.7);
  backdrop-filter: blur(4px);
}
.modal-container {
  position: relative;
  background: var(--color-surface);
  width: 100%;
  max-width: 800px;
  max-height: 90vh;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  transform: translateY(20px);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.modal.active .modal-container {
  transform: translateY(0);
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--sp-5);
  border-bottom: 1px solid var(--color-border);
}
.modal-title {
  margin: 0;
  font-size: var(--fs-xl);
  color: var(--color-text);
  font-weight: 700;
  text-transform: capitalize;
}
.modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--color-muted);
  cursor: pointer;
  transition: color 0.2s ease;
  padding: 4px;
}
.modal-close:hover {
  color: var(--color-accent);
}
.modal-body {
  padding: var(--sp-5);
  overflow-y: auto;
  color: var(--color-text);
}

/* Estilização para o README (Markdown) gerado pelo GitHub */
.markdown-body {
  font-family: var(--font-sans);
  line-height: 1.6;
  font-size: var(--fs-base);
}
.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  font-weight: 600;
  color: var(--color-text);
}
.markdown-body h1 {
  font-size: 2em;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.3em;
}
.markdown-body h2 {
  font-size: 1.5em;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.3em;
}
.markdown-body h3 {
  font-size: 1.25em;
}
.markdown-body p {
  margin-bottom: 1em;
}
.markdown-body img {
  max-width: 100%;
  border-radius: var(--radius-sm);
  margin: var(--sp-3) 0;
}
.markdown-body pre {
  background: var(--color-elev);
  padding: 1em;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  border: 1px solid var(--color-border);
  margin-bottom: 1em;
}
.markdown-body code {
  background: var(--color-elev);
  padding: 0.2em 0.4em;
  border-radius: 4px;
  font-family: monospace;
  font-size: 85%;
}
.markdown-body pre code {
  background: transparent;
  padding: 0;
  border: none;
}
.markdown-body blockquote {
  border-left: 4px solid var(--color-primary);
  padding-left: 1em;
  color: var(--color-muted);
  margin-left: 0;
  margin-bottom: 1em;
  background: rgba(37, 99, 235, 0.05);
  padding: 0.5em 1em;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.markdown-body ul,
.markdown-body ol {
  padding-left: 2em;
  margin-bottom: 1em;
}
.markdown-body li {
  margin-bottom: 0.25em;
}
.markdown-body a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}
.markdown-body a:hover {
  text-decoration: underline;
}
.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1em;
}
.markdown-body th,
.markdown-body td {
  border: 1px solid var(--color-border);
  padding: 8px 12px;
  text-align: left;
}
.markdown-body th {
  background: var(--color-elev);
}
.markdown-body hr {
  height: 1px;
  background-color: var(--color-border);
  border: none;
  margin: 2em 0;
}

html[data-theme='dark'] .markdown-body img {
  opacity: 0.9;
  transition: opacity 0.3s;
}
html[data-theme='dark'] .markdown-body img:hover {
  opacity: 1;
}

/* ==========================================================================
   Modo Escuro (Dark Mode)
   ========================================================================== */
html[data-theme='dark'] {
  --color-bg: #111827;
  --color-surface: #1f2937;
  --color-elev: #374151;
  --color-primary: #3b82f6;
  --color-accent: #0ea5e9;
  --color-border: #374151;
  --color-text: #f9fafb;
  --color-muted: #9ca3af;
  --color-focus: #60a5fa;
}

/* Ajustes específicos para o modo escuro */
html[data-theme='dark'] .header {
  background: rgba(31, 41, 55, 0.85); /* --color-surface com transparência */
}

html[data-theme='dark'] .btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

html[data-theme='dark'] .about-text {
  background: rgba(31, 41, 55, 0.4);
  border-color: rgba(255, 255, 255, 0.05);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* ==========================================================================
   Animações de Scroll
   ========================================================================== */
.animate-item,
.animate-left,
.animate-right {
  opacity: 0;
  transition:
    opacity 0.6s ease-out,
    transform 0.6s ease-out;
}
.animate-left {
  transform: translateX(-30px);
}
.animate-right {
  transform: translateX(30px);
}
.animate-item {
  transform: translateY(30px);
}

.animate-item.visible,
.animate-left.visible,
.animate-right.visible {
  opacity: 1;
  transform: translate(0, 0);
}

/* ==========================================================================
   Estilos Responsivos
   ========================================================================== */

/* Telas de Tablet (até 1024px) */
@media (max-width: 1024px) {
  .grid.cols-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .projects-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .services-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .about-content {
    grid-template-columns: 1fr;
  }
  .hero-content {
    gap: var(--sp-5);
  }
  .hero-text h1 {
    font-size: 2rem;
  }
}

/* Telas de Tablet Menor e Celulares (até 768px) */
@media (max-width: 768px) {
  /* --- Geral --- */
  .section {
    padding: var(--sp-7) 0;
  }
  .section-title {
    font-size: 1.8rem;
  }
  h1 {
    font-size: 2.5rem; /* Ajuste o tamanho da fonte principal */
  }
  h2 {
    font-size: 2rem;
  }

  /* --- Header / Navegação --- */
  .nav-links {
    display: none; /* Esconde a navegação de desktop */
  }
  .mobile-menu-btn {
    display: inline-flex; /* Mostra o botão do menu móvel */
  }
  .nav {
    justify-content: space-between;
  }

  .mobile-theme-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sp-3) var(--sp-3);
    border-top: 1px solid var(--color-border);
    margin-top: var(--sp-2);
  }

  /* --- Seção Hero --- */
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }
  .hero-text {
    order: 2; /* Coloca o texto abaixo da imagem */
    align-items: center;
    display: flex;
    flex-direction: column;
  }
  .hero-image {
    order: 1;
    margin-bottom: 1rem;
    justify-self: center;
  }
  .hero-buttons {
    flex-direction: column; /* Botões um abaixo do outro */
    gap: 1rem;
    width: 100%;
    max-width: 320px;
  }
  .hero-buttons .primary-btn,
  .hero-buttons .outline-btn {
    width: 100%;
  }

  /* --- Seção Sobre --- */
  .grid.cols-3.journey-cards {
    grid-template-columns: 1fr; /* Uma coluna para os cards */
  }

  /* --- Seção Habilidades --- */
  .skills-layout {
    grid-template-columns: 1fr;
  }

  /* --- Seção Serviços --- */
  .services-grid {
    grid-template-columns: 1fr;
  }

  /* --- Seção Projetos --- */
  .projects-grid {
    grid-template-columns: 1fr;
  }

  /* --- Seção Contato --- */
  .contact-content {
    grid-template-columns: 1fr;
  }
}

/* Telas de Celular (até 480px) */
@media (max-width: 480px) {
  .container {
    padding: 0 var(--sp-4);
  }
  .lead {
    font-size: var(--fs-base);
  }
  h1 {
    font-size: 2.2rem;
  }
  .tech-grid {
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  }
  .footer-content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}