/* ==========================================================================
   Design System - Gerador de Senhas Premium (pt-PT)
   ========================================================================== */

/* Importar Fontes Modernas */
@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500;700&family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Cores Base */
  --bg-primary: #0b0f19;
  --bg-secondary: rgba(17, 24, 39, 0.7);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);
  
  /* Gradientes e Acentos */
  --accent-primary: #8b5cf6; /* Violet */
  --accent-secondary: #06b6d4; /* Cyan */
  --grad-primary: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  --grad-hover: linear-gradient(135deg, #a78bfa, #22d3ee);
  
  /* Cores de Feedback (Força da Senha) */
  --strength-weak: #ef4444; /* Vermelho */
  --strength-fair: #f97316; /* Laranja */
  --strength-good: #eab308; /* Amarelo */
  --strength-strong: #10b981; /* Verde */
  --strength-ultra: #34d399; /* Verde Brilhante */

  /* Cores de Texto */
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dark: #1f2937;

  /* Fontes */
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'Fira Code', 'Courier New', Courier, monospace;

  /* Efeitos */
  --shadow-glow: 0 0 25px rgba(139, 92, 246, 0.25);
  --shadow-glow-cyan: 0 0 25px rgba(6, 182, 212, 0.25);
  --card-blur: blur(16px);
}

/* Reset Global */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-x: hidden;
  position: relative;
}

/* Fundos Decorativos Animados */
body::before, body::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  z-index: -1;
  filter: blur(120px);
  opacity: 0.2;
  pointer-events: none;
}

body::before {
  top: 10%;
  left: 15%;
  background: var(--accent-primary);
  animation: float-slow 15s infinite alternate;
}

body::after {
  bottom: 10%;
  right: 15%;
  background: var(--accent-secondary);
  animation: float-slow 20s infinite alternate-reverse;
}

@keyframes float-slow {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(50px, 30px) scale(1.1); }
}

/* Container Principal */
.app-container {
  width: 100%;
  max-width: 580px;
  margin: 20px;
  padding: 32px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  backdrop-filter: var(--card-blur);
  -webkit-backdrop-filter: var(--card-blur);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3), var(--shadow-glow);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.app-container:hover {
  border-color: var(--border-hover);
}

/* Cabeçalho */
header {
  text-align: center;
  margin-bottom: 28px;
}

h1 {
  font-size: 2rem;
  font-weight: 800;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}

.subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Visualização da Senha Gerada */
.password-display-wrapper {
  position: relative;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 18px 56px 18px 20px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.password-display-wrapper.active-glow {
  border-color: rgba(6, 182, 212, 0.4);
  box-shadow: var(--shadow-glow-cyan);
}

#password-text {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-main);
  background: transparent;
  border: none;
  outline: none;
  width: 100%;
  padding-right: 10px;
}

/* Botão de Copiar */
.copy-btn {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  width: 40px;
  height: 40px;
  border-radius: 12px;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.copy-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--accent-secondary);
  transform: translateY(-50%) scale(1.05);
}

.copy-btn:active {
  transform: translateY(-50%) scale(0.95);
}

/* Tooltip de Copiado */
.tooltip {
  position: absolute;
  bottom: 110%;
  right: 12px;
  background: var(--accent-secondary);
  color: var(--bg-primary);
  font-weight: 700;
  font-size: 0.75rem;
  padding: 6px 12px;
  border-radius: 8px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  transform: translateY(8px);
  box-shadow: 0 4px 12px rgba(6, 182, 212, 0.3);
}

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

/* Indicador de Força de Senha */
.strength-section {
  margin-bottom: 28px;
}

.strength-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.strength-label {
  color: var(--text-muted);
}

.strength-value {
  font-weight: 700;
  transition: color 0.3s ease;
}

.strength-bar-container {
  height: 6px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  overflow: hidden;
}

.strength-bar {
  height: 100%;
  width: 0%;
  background: var(--strength-weak);
  border-radius: 10px;
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.4s ease;
}

/* Opções de Configuração */
.settings-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 28px;
}

/* Comprimento da Senha */
.length-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.length-label-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.95rem;
  font-weight: 500;
}

.length-val {
  color: var(--accent-secondary);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
}

/* Customização de Range Slider */
input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-secondary);
  box-shadow: 0 0 8px rgba(6, 182, 212, 0.5);
  transition: transform 0.1s, background-color 0.2s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  background: #22d3ee;
}

/* Modo de Geração (Tabs) */
.mode-toggle-group {
  display: flex;
  background: rgba(0, 0, 0, 0.2);
  padding: 4px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  margin-bottom: 12px;
}

.mode-tab {
  flex: 1;
  text-align: center;
  padding: 10px 0;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 8px;
  transition: all 0.2s ease;
  user-select: none;
}

.mode-tab:hover {
  color: var(--text-main);
}

.mode-tab.active {
  background: var(--grad-primary);
  color: var(--text-main);
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.2);
}

/* Opções de Tipos (Checkbox Grid) */
.checkbox-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  padding: 12px 16px;
  border-radius: 12px;
  cursor: pointer;
  user-select: none;
  transition: all 0.2s ease;
}

.checkbox-label:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-hover);
}

.checkbox-label input {
  display: none;
}

/* Icone Checkbox Customizado */
.custom-checkbox {
  width: 20px;
  height: 20px;
  border: 2px solid var(--text-muted);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.checkbox-label input:checked + .custom-checkbox {
  background: var(--grad-primary);
  border-color: transparent;
}

.custom-checkbox::after {
  content: '✓';
  color: var(--text-main);
  font-size: 0.75rem;
  font-weight: bold;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.checkbox-label input:checked + .custom-checkbox::after {
  opacity: 1;
}

/* Destaque para linha selecionada */
.checkbox-label.checked {
  background: rgba(139, 92, 246, 0.08);
  border-color: rgba(139, 92, 246, 0.3);
}

/* Estatísticas e Informação de Quebra */
.stats-dashboard {
  background: rgba(0, 0, 0, 0.15);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 16px;
  margin-bottom: 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-item.full-width {
  grid-column: span 2;
  border-top: 1px solid var(--border-color);
  padding-top: 12px;
}

.stat-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.stat-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
}

#crack-time {
  color: #fb7185; /* Soft red/pink */
  font-weight: 700;
}

/* Botões de Ação */
.action-buttons {
  display: flex;
  gap: 12px;
}

.btn {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  padding: 14px 24px;
  border-radius: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
}

.btn-generate {
  flex: 2;
  background: var(--grad-primary);
  color: var(--text-main);
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.btn-generate:hover {
  background: var(--grad-hover);
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.45), var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-generate:active {
  transform: translateY(0);
  box-shadow: 0 4px 10px rgba(139, 92, 246, 0.3);
}

.btn-reset {
  flex: 1;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
}

.btn-reset:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text-main);
}

.btn-reset:active {
  transform: scale(0.97);
}

/* Responsividade */
@media (max-width: 480px) {
  .app-container {
    padding: 20px;
    margin: 10px;
  }

  h1 {
    font-size: 1.6rem;
  }

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

  .stats-dashboard {
    grid-template-columns: 1fr;
  }

  .stat-item.full-width {
    grid-column: span 1;
  }

  .action-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}

/* Marca GPWAY */
.brand-header {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  margin-bottom: 20px;
  text-transform: uppercase;
}

.brand-separator {
  color: var(--accent-primary);
  opacity: 0.8;
}

.brand-email {
  color: var(--accent-secondary);
  text-decoration: none;
  transition: all 0.2s ease;
  text-transform: lowercase;
  font-weight: 500;
}

.brand-email:hover {
  color: #22d3ee;
  text-shadow: 0 0 8px rgba(6, 182, 212, 0.4);
}

/* PWA Install Button */
.pwa-install-btn {
  background: var(--grad-primary);
  color: var(--text-main);
  border: none;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  cursor: pointer;
  margin-left: 8px;
  box-shadow: 0 0 10px rgba(139, 92, 246, 0.4);
  transition: transform 0.2s, box-shadow 0.2s;
  animation: pulse-glow 2s infinite alternate;
}

@keyframes pulse-glow {
  0% { transform: scale(1); box-shadow: 0 0 10px rgba(139, 92, 246, 0.4); }
  100% { transform: scale(1.05); box-shadow: 0 0 18px rgba(6, 182, 212, 0.6); }
}

.pwa-install-btn:hover {
  transform: scale(1.1);
  background: var(--grad-hover);
}