/* TAGMASTER PRO - SaaS Design System Elegante & Responsivo */
/* Design: Minimalista Corporativo | Dark/Light Mode | Mobile-First */

:root {
  /* Light Theme (Default) */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-card: #ffffff;
  --bg-input: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  
  /* Brand Colors */
  --primary-50: #eff6ff;
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  
  /* Success */
  --success-500: #10b981;
  
  /* Border & Shadows */
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 20px 40px rgba(0,0,0,0.1);
  
  /* Dark Theme */
  --dark-bg-primary: #0f172a;
  --dark-bg-secondary: #1e293b;
  --dark-bg-card: #334155;
  --dark-text-primary: #f1f5f9;
  --dark-text-secondary: #cbd5e1;
}

[data-theme="dark"] {
  --bg-primary: var(--dark-bg-primary);
  --bg-secondary: var(--dark-bg-secondary);
  --bg-card: var(--dark-bg-card);
  --bg-input: var(--dark-bg-secondary);
  --text-primary: var(--dark-text-primary);
  --text-secondary: var(--dark-text-secondary);
  --text-muted: #94a3b8;
  --border-color: #334155;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 1rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Header */
.header {
  text-align: center;
  padding: 2rem 0;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 1.125rem;
  font-weight: 400;
  max-width: 500px;
  margin: 0 auto;
}

/* Main Card */
.main-card {
  background: var(--bg-card);
  border-radius: 24px;
  padding: clamp(2rem, 5vw, 3rem);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.main-card:hover {
  box-shadow: 0 30px 60px rgba(0,0,0,0.12);
  transform: translateY(-4px);
}

/* Input Groups */
.input-group {
  margin-bottom: 2rem;
}

.input-group label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.95rem;
}

input[type="text"],
select {
  width: 100%;
  padding: 1rem 1.25rem;
  border: 2px solid var(--border-color);
  border-radius: 16px;
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all 0.3s ease;
  font-family: inherit;
}

input[type="text"]:focus,
select:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

input[type="text"]::placeholder {
  color: var(--text-muted);
}

/* Select Controls */
.controls-config {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .controls-config {
    flex-direction: column;
  }
  
  .controls-config select {
    flex: 1;
  }
}

/* Stats */
.stats {
  display: flex;
  justify-content: space-around;
  align-items: center;
  margin: 2rem 0;
  padding: 1.5rem;
  background: linear-gradient(135deg, var(--primary-50), rgba(59, 130, 246, 0.05));
  border-radius: 16px;
  border: 1px solid var(--border-color);
  gap: 2rem;
}

.stat-item {
  text-align: center;
  flex: 1;
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

@media (max-width: 640px) {
  .stats {
    flex-direction: column;
    gap: 1rem;
  }
}

/* Buttons */
.controls {
  display: flex;
  gap: 1rem;
  margin: 2rem 0;
  flex-wrap: wrap;
}

.btn {
  flex: 1;
  padding: 1rem 1.5rem;
  border: none;
  border-radius: 16px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  min-height: 56px;
  font-family: inherit;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--success-500), #059669);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-tertiary {
  background: transparent;
  color: var(--primary-500);
  border: 2px solid var(--primary-500);
}

.btn-tertiary:hover:not(:disabled) {
  background: var(--primary-500);
  color: white;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Tags Preview */
.tags-preview {
  background: var(--bg-secondary);
  border-radius: 16px;
  padding: 1.5rem;
  margin: 1.5rem 0;
  max-height: 160px;
  overflow-y: auto;
  border: 1px solid var(--border-color);
}

.tag-badge {
  display: inline-block;
  background: var(--primary-50);
  color: var(--primary-700);
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  margin: 0.25rem 0.25rem 0 0;
  border: 1px solid var(--primary-200);
  font-size: 0.875rem;
  font-weight: 500;
  animation: tagSlide 0.3s ease-out forwards;
  opacity: 0;
  transform: translateY(10px);
}

@keyframes tagSlide {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Textarea */
#resultado {
  width: 100%;
  height: 200px;
  padding: 1.25rem;
  border: 2px solid var(--border-color);
  border-radius: 16px;
  background: var(--bg-input);
  color: var(--text-primary);
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 0.95rem;
  resize: vertical;
  transition: all 0.3s ease;
  line-height: 1.6;
}

#resultado:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

/* Success Message */
.success-message {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  background: linear-gradient(135deg, #dcfce7, #bbf7d0);
  color: #166534;
  border-radius: 12px;
  border-left: 4px solid var(--success-500);
  font-weight: 500;
  animation: slideDown 0.4s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
}

/* Loading */
.loading {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top: 2px solid #fff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Theme Toggle */
.theme-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
  z-index: 1000;
}

.theme-toggle:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-lg);
}

/* Responsive */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
    gap: 1.5rem;
  }
  
  .main-card {
    padding: 1.5rem;
  }
  
  .controls {
    flex-direction: column;
  }
  
  .btn {
    flex: none;
  }
  
  .stats {
    flex-direction: column;
    gap: 1rem;
    padding: 1.25rem;
  }
}

@media (max-width: 480px) {
  .logo {
    font-size: 1.75rem;
  }
  
  .subtitle {
    font-size: 1rem;
  }
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: var(--primary-500);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-600);
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

:focus-visible {
  outline: 2px solid var(--primary-500);
  outline-offset: 2px;
}