/* ==========================================================================
   Formateador EEFF - Modern Dashboard Stylesheet
   ========================================================================== */

:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-border: #bfdbfe;
  
  --success: #10b981;
  --success-light: #ecfdf5;
  --success-border: #a7f3d0;
  
  --warning: #f59e0b;
  --warning-light: #fffbeb;
  
  --danger: #ef4444;
  --danger-light: #fef2f2;
  
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --bg-input: #f1f5f9;
  
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  
  --border-color: #e2e8f0;
  --border-hover: #cbd5e1;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.05);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.05);
  
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.5;
}

/* Header */
.app-header {
  background: #ffffff;
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}

.brand-info h1 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.brand-info p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.header-badges {
  display: flex;
  align-items: center;
  gap: 10px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-success {
  background: var(--success-light);
  color: var(--success);
  border: 1px solid var(--success-border);
}

.badge-primary {
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-border);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  flex: 1;
  width: 100%;
}

.hero-banner {
  text-align: center;
  margin-bottom: 2.5rem;
}

.hero-banner h2 {
  font-size: 1.85rem;
  font-weight: 800;
  color: #0f172a;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
}

.hero-banner p {
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 650px;
  margin: 0 auto;
}

/* Grid Layout */
.main-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.75rem;
}

@media (max-width: 960px) {
  .main-grid {
    grid-template-columns: 1fr;
  }
}

/* Card */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  margin-bottom: 1.5rem;
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-hover);
}

.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.step-num {
  width: 26px;
  height: 26px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
}

/* Dropzone */
.dropzone-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

@media (max-width: 600px) {
  .dropzone-grid {
    grid-template-columns: 1fr;
  }
}

.dropzone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem 1rem;
  text-align: center;
  cursor: pointer;
  background: #fafafa;
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 160px;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.dropzone input[type="file"] {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.dropzone-icon {
  font-size: 2rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  transition: var(--transition);
}

.dropzone:hover .dropzone-icon, .dropzone.dragover .dropzone-icon {
  color: var(--primary);
  transform: translateY(-2px);
}

.dropzone-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.dropzone-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.file-selected-tag {
  margin-top: 8px;
  background: #ffffff;
  border: 1px solid var(--primary-border);
  color: var(--primary);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  display: none;
  max-width: 90%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Radio Options (Export Mode) */
.options-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.option-card {
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: #ffffff;
}

.option-card:hover {
  border-color: var(--border-hover);
}

.option-card.active {
  border-color: var(--primary);
  background: var(--primary-light);
}

.option-card input[type="radio"] {
  margin-top: 3px;
  accent-color: var(--primary);
}

.option-info h4 {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
}

.option-info p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Accordion / Collapsible Options */
.collapsible-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: var(--bg-input);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 1rem;
  user-select: none;
}

.collapsible-content {
  display: none;
  padding: 0.5rem 0.25rem 1rem;
}

.collapsible-content.show {
  display: block;
}

/* Form Inputs */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

@media (max-width: 600px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-group label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-group input, .form-group select {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  background: #ffffff;
  color: var(--text-main);
  outline: none;
  transition: var(--transition);
}

.form-group input:focus, .form-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
  width: 100%;
}

.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
  transform: translateY(-1px);
}

.btn-success {
  background: var(--success);
  color: #ffffff;
}

.btn-success:hover {
  background: #059669;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

.btn-outline:hover {
  background: var(--bg-input);
  border-color: var(--border-hover);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
}

/* Progress & Loading */
.progress-container {
  display: none;
  margin-top: 1rem;
}

.progress-bar {
  height: 6px;
  background: #e2e8f0;
  border-radius: 9999px;
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #2563eb, #10b981);
  border-radius: 9999px;
  transition: width 0.3s ease;
}

.progress-text {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 6px;
}

/* Results & Preview Area */
.results-card {
  display: none;
}

.file-result-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 8px;
  transition: var(--transition);
}

.file-result-item:hover {
  background: #f1f5f9;
  border-color: var(--primary-border);
}

.file-result-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.file-icon {
  font-size: 1.25rem;
  color: var(--primary);
}

.file-result-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
}

.file-result-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* PDF Preview Frame */
.preview-container {
  margin-top: 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 520px;
  background: #ffffff;
}

.preview-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* Template Selector Pills */
.template-pills {
  display: flex;
  gap: 8px;
  margin-bottom: 1rem;
}

.template-pill {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
}

.template-pill.active {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary-border);
}

/* Footer */
.app-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-color);
  padding: 1.25rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  background: #ffffff;
}