/* =========================================
   VARIÁVEIS (THEME)
========================================= */
:root {
  /* Cores Light Mode */
  --bg-app: #f1f5f9;
  --bg-header: #ffffff;
  --bg-card: #ffffff;
  --border-color: #e2e8f0;
  
  --text-main: #0f172a;
  --text-muted: #64748b;
  
  --primary: #4f46e5;      /* Indigo */
  --primary-hover: #4338ca;
  --secondary: #f1f5f9;
  --secondary-hover: #e2e8f0;
  
  --success: #10b981;
  --error: #ef4444;
  
  /* Sombras e Formas */
  --radius-lg: 16px;
  --radius-md: 10px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 10px 25px -5px rgba(15,23,42,0.05);
  --shadow-hover: 0 20px 30px -10px rgba(79,70,229,0.15);
  
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Cores Dark Mode */
body.dark {
  --bg-app: #0b0f19;
  --bg-header: #111827;
  --bg-card: #141c2f;
  --border-color: #1f2937;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  
  --primary: #6366f1;
  --primary-hover: #818cf8;
  --secondary: #1e293b;
  --secondary-hover: #334155;
  
  --shadow-md: 0 10px 25px -5px rgba(0,0,0,0.5);
  --shadow-hover: 0 20px 30px -10px rgba(0,0,0,0.7);
}

/* =========================================
   RESET E BASE
========================================= */
* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  min-height: 100vh;
  background-color: var(--bg-app);
  color: var(--text-main);
  font-family: 'Inter', system-ui, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--transition), color var(--transition);
}

/* Custom Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* =========================================
   HEADER & INTRO
========================================= */
.site-header {
  background: var(--bg-header);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--primary);
}
.logo i { font-size: 28px; }
.logo h1 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.theme-btn {
  background: var(--secondary);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.2rem;
  transition: var(--transition);
}
.theme-btn:hover { background: var(--secondary-hover); transform: rotate(15deg); }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px;
}

.intro { text-align: center; margin-bottom: 40px; }
.intro h2 { font-size: 2rem; font-weight: 700; margin-bottom: 8px; }
.intro p { color: var(--text-muted); font-size: 1.1rem; }

/* =========================================
   GRID DE FERRAMENTAS
========================================= */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

/* Fazer o validador JSON ocupar 2 colunas em telas grandes se houver espaço */
@media (min-width: 800px) {
  .card-wide { grid-column: span 2; }
}

/* =========================================
   CARDS
========================================= */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-main);
}
.card-header i {
  font-size: 24px;
  color: var(--primary);
  background: var(--bg-app);
  padding: 8px;
  border-radius: 8px;
}
.card-header h2 { font-size: 1.15rem; font-weight: 600; }

.card > p { color: var(--text-muted); font-size: 0.9rem; margin-top: -8px; }

/* Flex auxiliar */
.header-flex { display: flex; justify-content: space-between; align-items: center; margin-top: -8px; }
.header-flex p { color: var(--text-muted); font-size: 0.9rem; margin: 0; }
.counter { font-size: 0.8rem; color: var(--text-muted); font-variant-numeric: tabular-nums; }

/* =========================================
   INPUTS & FORMS
========================================= */
.input-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.row-group { display: flex; gap: 12px; }
.row-group > * { flex: 1; }

input[type="text"], input[type="number"], textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg-app);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

textarea { resize: vertical; min-height: 80px; }

input:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

/* Checkboxes */
.checkbox-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.full-width { grid-column: 1 / -1; }

label:has(input[type="checkbox"]) {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  cursor: pointer;
  color: var(--text-main);
}
input[type="checkbox"] {
  width: 16px; height: 16px;
  accent-color: var(--primary);
  cursor: pointer;
}

/* Color Picker */
.color-control { display: flex; gap: 12px; }
input[type="color"] {
  -webkit-appearance: none;
  border: none;
  width: 50px; height: 44px;
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
  background: transparent;
}
input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
input[type="color"]::-webkit-color-swatch { border: 1px solid var(--border-color); border-radius: 8px; }
.color-preview { height: 44px; border-radius: 8px; border: 1px solid var(--border-color); width: 100%; margin-top: 8px; }

/* =========================================
   BUTTONS
========================================= */
button { font-family: inherit; outline: none; }

.btn-primary {
  width: 100%;
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 12px;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(1px); }

.btn-secondary {
  width: 100%;
  background: var(--secondary);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 12px;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.btn-secondary:hover { background: var(--secondary-hover); }

.btn-group { display: flex; gap: 12px; }
.mt-auto { margin-top: auto; }
.mt-2 { margin-top: 12px; }

/* =========================================
   RESULTADOS & AÇÕES
========================================= */
.result-wrapper {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  min-height: 44px;
}

.result {
  flex: 1;
  padding: 10px 14px;
  background: var(--bg-app);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-family: 'Courier New', Courier, monospace; /* Ideal para chaves/senhas */
  font-size: 0.9rem;
  word-break: break-all;
  white-space: pre-wrap;
  display: none; /* Só aparece quando tem texto */
  border: 1px solid transparent;
}
.result.show { display: block; animation: fadeIn 0.3s ease; border-color: var(--border-color); }

.action-btns {
  display: none;
  flex-direction: column;
  gap: 6px;
}
.result.show + .action-btns { display: flex; animation: fadeIn 0.3s ease; }

.icon-action-btn {
  background: var(--secondary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 18px;
  transition: var(--transition);
}
.icon-action-btn:hover { background: var(--primary); color: white; border-color: var(--primary); }
/* =========================================

   TOAST

========================================= */

.toast {

  position: fixed;

  bottom: 24px;

  right: 24px;

  background: var(--text-main);

  color: var(--bg-app);

  padding: 12px 20px;

  border-radius: 12px;

  display: flex;

  align-items: center;

  gap: 10px;

  font-weight: 500;

  box-shadow: 0 10px 30px rgba(0,0,0,0.15);

  transform: translateY(20px);

  opacity: 0;

  pointer-events: none;

  transition: var(--transition);

  z-index: 100;

}

.toast i { font-size: 20px; color: var(--success); }

.toast.show { opacity: 1; transform: translateY(0); }

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Mobile Adjustments */
@media (max-width: 600px) {
  .tools-grid { grid-template-columns: 1fr; }
  .checkbox-grid { grid-template-columns: 1fr; }
  .container { padding: 24px 16px; }
}

/* linguagem */
.language-selector {
  margin-left: 20px;
}
.language-selector select {
  padding: 6px 10px;
  border-radius: 6px;
   background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}