/* ============================================================================
   KEYWORD RESEARCH PRO - STYLES V10.0
   Design System Optimizado - Softwatools
   ============================================================================ */

:root {
  /* Colores Principales - Softwatools */
  --primary: #FF6E00;
  --primary-dark: #E55A00;
  --primary-light: #FF8A33;
  --primary-rgb: 255, 110, 0;
  
  /* Colores Semánticos */
  --success: #10b981;
  --error: #ef4444;
  --warning: #f59e0b;
  --info: #3b82f6;
  
  /* Tema Oscuro (Default) */
  --bg-dark: #0a0e1b;
  --bg-panel: #131823;
  --bg-card: #1c2333;
  --bg-hover: #252d3d;
  
  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --border: #2a3441;
  --border-light: #374151;
  
  /* Mobile específico */
  --mobile-header-bg: #0f1420;
  --mobile-nav-bg: #0f1420;
  
  /* Sombras */
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.2);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.3);
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Transiciones */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Layout */
  --sidebar-width: 260px;
  --sidebar-collapsed: 70px;
  --header-height: 56px;
  --mobile-nav-height: 60px;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: ui-monospace, 'SF Mono', 'Monaco', 'Cascadia Code', 'Courier New', monospace;
  
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
}

/* ============================================================================
   RESET & BASE
   ============================================================================ */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: var(--line-height-normal);
  overflow-x: hidden;
}

/* ============================================================================
   MOBILE HEADER
   ============================================================================ */

.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--mobile-header-bg);
  border-bottom: 1px solid var(--border);
  padding: 0 var(--spacing-md);
  align-items: center;
  justify-content: space-between;
  z-index: 1000;
  backdrop-filter: blur(10px);
}

.mobile-header-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.mobile-menu-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.mobile-menu-btn:hover {
  background: var(--bg-hover);
}

.mobile-menu-btn:active {
  transform: scale(0.95);
}

@media (max-width: 1023px) {
  .mobile-header {
    display: flex;
  }
}

/* ============================================================================
   SIDEBAR
   ============================================================================ */

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: var(--sidebar-width);
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 999;
  transition: transform var(--transition-base);
  contain: layout style paint;
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed);
}

.sidebar-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.sidebar-logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sidebar-logo-text {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  white-space: nowrap;
}

.sidebar.collapsed .sidebar-logo-text {
  display: none;
}

.sidebar-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--spacing-sm) 0;
}

.sidebar-content::-webkit-scrollbar {
  width: 4px;
}

.sidebar-content::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar-content::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: var(--radius-full);
}

.sidebar-nav {
  padding: 0 var(--spacing-sm);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  margin-bottom: var(--spacing-xs);
  position: relative;
}

.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.nav-item.active {
  background: rgba(var(--primary-rgb), 0.1);
  color: var(--primary);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.nav-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nav-text {
  white-space: nowrap;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.sidebar.collapsed .nav-text {
  display: none;
}

.sidebar-footer {
  padding: var(--spacing-sm);
  border-top: 1px solid var(--border);
}

/* Sidebar Overlay */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 998;
}

.sidebar-overlay.active {
  display: block;
}

/* Mobile Sidebar */
@media (max-width: 1023px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.mobile-open {
    transform: translateX(0);
  }
}

/* ============================================================================
   MAIN CONTENT
   ============================================================================ */

.main-content {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  transition: margin-left var(--transition-base);
  padding-bottom: var(--spacing-xl);
}

.sidebar.collapsed ~ .main-content {
  margin-left: var(--sidebar-collapsed);
}

@media (max-width: 1023px) {
  .main-content {
    margin-left: 0;
    margin-top: var(--header-height);
    padding-bottom: calc(var(--mobile-nav-height) + var(--spacing-xl));
  }
}

.content-area {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-xl);
}

@media (max-width: 767px) {
  .content-area {
    padding: var(--spacing-md);
  }
}

/* ============================================================================
   SECTIONS
   ============================================================================ */

.content-section {
  display: none;
}

.content-section:first-child {
  display: block;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xl);
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin: 0;
}

.section-subtitle {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin: var(--spacing-xl) 0 var(--spacing-md) 0;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

@media (max-width: 767px) {
  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
  }
}

/* ============================================================================
   CARDS
   ============================================================================ */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-fast);
}

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

.card-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.card-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.card-body {
  padding: var(--spacing-lg);
}

@media (max-width: 767px) {
  .card-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .card-actions {
    width: 100%;
  }
}

/* Card Variants */
.card.bg-panel {
  background: var(--bg-panel);
}

/* ============================================================================
   UPLOAD ZONE
   ============================================================================ */

.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl) var(--spacing-lg);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
  background: var(--bg-panel);
}

.upload-zone:hover {
  border-color: var(--primary);
  background: var(--bg-hover);
}

.upload-zone.dragging {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb), 0.1);
  transform: scale(1.02);
}

.upload-text {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.upload-hint {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* ============================================================================
   STATS GRID
   ============================================================================ */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

@media (max-width: 767px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

.stat-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  transition: all var(--transition-fast);
}

.stat-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  flex-shrink: 0;
}

.stat-icon.bg-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

.stat-icon.bg-success {
  background: linear-gradient(135deg, #10b981, #059669);
}

.stat-icon.bg-warning {
  background: linear-gradient(135deg, #f59e0b, #d97706);
}

.stat-icon.bg-error {
  background: linear-gradient(135deg, #ef4444, #dc2626);
}

.stat-info {
  flex: 1;
}

.stat-value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin: 0 0 0.25rem 0;
  font-family: var(--font-mono);
  line-height: var(--line-height-tight);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin: 0;
  font-weight: var(--font-weight-medium);
}

/* ============================================================================
   FORMS
   ============================================================================ */

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

@media (max-width: 767px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
}

.form-input,
.form-select {
  width: 100%;
  padding: 0.75rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--font-size-base);
  font-family: var(--font-sans);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

.form-input::placeholder {
  color: var(--text-muted);
}

textarea.form-input {
  resize: vertical;
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
}

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%2394a3b8' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
  background-position: right 0.5rem center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
  padding-right: 2.5rem;
}

.input-group {
  display: flex;
  gap: 0;
}

.input-group .form-input {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  border-right: 0;
}

.input-group .btn {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

.form-group small {
  display: block;
  margin-top: var(--spacing-xs);
  color: var(--text-muted);
  font-size: var(--font-size-xs);
}

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  cursor: pointer;
  padding: var(--spacing-md);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.checkbox-label:hover {
  border-color: var(--primary);
  background: var(--bg-hover);
}

.checkbox-label input[type="checkbox"] {
  margin-top: 0.25rem;
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--primary);
}

.checkbox-label span {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.checkbox-label small {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

/* ============================================================================
   BUTTONS
   ============================================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  font-family: var(--font-sans);
  line-height: 1;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

.btn:active:not(:disabled) {
  transform: scale(0.98);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  box-shadow: 0 2px 8px rgba(var(--primary-rgb), 0.3);
}

.btn-primary:hover:not(:disabled) {
  box-shadow: 0 4px 16px rgba(var(--primary-rgb), 0.4);
  transform: translateY(-1px);
}

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

.btn-ghost:hover:not(:disabled) {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border-light);
}

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

.btn-success:hover:not(:disabled) {
  background: #059669;
}

.btn-warning {
  background: var(--warning);
  color: white;
}

.btn-warning:hover:not(:disabled) {
  background: #d97706;
}

.btn-danger {
  background: var(--error);
  color: white;
}

.btn-danger:hover:not(:disabled) {
  background: #dc2626;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: var(--font-size-sm);
}

.btn-block {
  width: 100%;
}

@media (max-width: 767px) {
  .btn .btn-text {
    display: none;
  }
}

/* ============================================================================
   PROGRESS
   ============================================================================ */

.progress-section {
  margin-bottom: var(--spacing-xl);
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.progress-label {
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
}

.progress-percentage {
  font-weight: var(--font-weight-bold);
  color: var(--primary);
  font-size: var(--font-size-xl);
  font-family: var(--font-mono);
}

.progress-bar {
  height: 12px;
  background: var(--bg-panel);
  border-radius: var(--radius-full);
  overflow: hidden;
  border: 1px solid var(--border);
  position: relative;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-full);
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.progress-fill.bg-primary {
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
}

.progress-fill.bg-success {
  background: linear-gradient(90deg, #10b981, #34d399);
}

.progress-fill.bg-warning {
  background: linear-gradient(90deg, #f59e0b, #fbbf24);
}

.progress-details {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-top: var(--spacing-sm);
  text-align: center;
}

.progress-bar-sm {
  height: 8px;
}

/* ============================================================================
   PHASES PROGRESS
   ============================================================================ */

.phases-progress {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.phase-progress {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-fast);
}

.phase-progress:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.phase-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.phase-number {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  flex-shrink: 0;
  font-size: var(--font-size-lg);
}

.phase-info {
  flex: 1;
}

.phase-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin: 0 0 0.25rem 0;
  color: var(--text-primary);
}

.phase-description {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin: 0;
}

.phase-count {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-secondary);
  background: var(--bg-hover);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
}

/* ============================================================================
   SYSTEM STATUS
   ============================================================================ */

.system-status {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--spacing-md);
}

@media (max-width: 767px) {
  .system-status {
    grid-template-columns: repeat(2, 1fr);
  }
}

.status-item {
  display: flex;
  justify-content: space-between;
  padding: var(--spacing-md);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.status-item:hover {
  border-color: var(--primary);
}

.status-label {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.status-value {
  color: var(--text-primary);
  font-weight: var(--font-weight-semibold);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
}

/* ============================================================================
   LOG CONTAINER
   ============================================================================ */

.log-container {
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  height: 400px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
}

.log-container::-webkit-scrollbar {
  width: 8px;
}

.log-container::-webkit-scrollbar-track {
  background: var(--bg-panel);
}

.log-container::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: var(--radius-full);
}

.log-entry {
  padding: 0.25rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  line-height: var(--line-height-relaxed);
}

.log-entry:last-child {
  border-bottom: none;
}

.log-info {
  color: var(--text-secondary);
}

.log-success {
  color: var(--success);
}

.log-warning {
  color: var(--warning);
}

.log-error {
  color: var(--error);
}

/* ============================================================================
   TABS
   ============================================================================ */

.tabs {
  display: flex;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--border);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tabs::-webkit-scrollbar {
  height: 4px;
}

.tabs::-webkit-scrollbar-track {
  background: transparent;
}

.tabs::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: var(--radius-full);
}

.tab {
  padding: 0.75rem 1.5rem;
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--text-secondary);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  bottom: -2px;
  white-space: nowrap;
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.tab:hover {
  color: var(--text-primary);
  background: rgba(var(--primary-rgb), 0.05);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  background: rgba(var(--primary-rgb), 0.1);
}

.tab-content {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================================
   MODAL
   ============================================================================ */

.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  max-width: 600px;
  width: 100%;
  max-height: 80vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
  animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.modal-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin: 0;
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.modal-body {
  padding: var(--spacing-lg);
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-sm);
}

/* ============================================================================
   TOAST
   ============================================================================ */

.toast {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md) var(--spacing-lg);
  box-shadow: var(--shadow-xl);
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-base);
  z-index: 10000;
  max-width: 400px;
  font-size: var(--font-size-sm);
}

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

.toast-info {
  border-left: 4px solid var(--info);
}

.toast-success {
  border-left: 4px solid var(--success);
}

.toast-warning {
  border-left: 4px solid var(--warning);
}

.toast-error {
  border-left: 4px solid var(--error);
}

@media (max-width: 767px) {
  .toast {
    bottom: calc(var(--mobile-nav-height) + var(--spacing-md));
    right: var(--spacing-md);
    left: var(--spacing-md);
    max-width: none;
  }
}

/* ============================================================================
   ALERTS
   ============================================================================ */

.alert {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  border-left: 4px solid;
  margin-bottom: var(--spacing-lg);
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.alert-info {
  background: rgba(59, 130, 246, 0.1);
  border-color: var(--info);
  color: var(--text-primary);
}

.alert-warning {
  background: rgba(245, 158, 11, 0.1);
  border-color: var(--warning);
  color: var(--text-primary);
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  border-color: var(--success);
  color: var(--text-primary);
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--error);
  color: var(--text-primary);
}

.alert ul {
  list-style: disc;
  margin-left: var(--spacing-lg);
}

/* ============================================================================
   MOBILE BOTTOM NAVIGATION
   ============================================================================ */

.mobile-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--mobile-nav-height);
  background: var(--mobile-nav-bg);
  border-top: 1px solid var(--border);
  z-index: 1000;
  backdrop-filter: blur(10px);
}

@media (max-width: 1023px) {
  .mobile-nav {
    display: block;
  }
}

.mobile-nav-wrapper {
  display: flex;
  height: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
  scrollbar-width: none;
}

.mobile-nav-wrapper::-webkit-scrollbar {
  display: none;
}

.mobile-nav-item {
  flex: 0 0 auto;
  min-width: 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  padding: 0 var(--spacing-sm);
}

.mobile-nav-item:active {
  transform: scale(0.95);
}

.mobile-nav-item.active {
  color: var(--primary);
}

.mobile-nav-item i {
  width: 24px;
  height: 24px;
}

.mobile-nav-item span {
  white-space: nowrap;
}

/* ============================================================================
   UTILITIES
   ============================================================================ */

.divider {
  height: 1px;
  background: var(--border);
  margin: var(--spacing-xl) 0;
}

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

.text-secondary {
  color: var(--text-secondary);
}

.text-center {
  text-align: center;
}

.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }

/* ============================================================================
   TOOLTIPS (usando atributo data-tooltip)
   ============================================================================ */

[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--bg-dark);
  color: var(--text-primary);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: var(--font-size-xs);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: all var(--transition-fast);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  z-index: 10000;
}

[data-tooltip]:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (max-width: 767px) {
  [data-tooltip]::after {
    display: none;
  }
}

/* ============================================================================
   PROJECT ITEMS
   ============================================================================ */

.project-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  transition: all var(--transition-fast);
}

.project-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.project-info {
  flex: 1;
}

.project-name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  margin: 0 0 var(--spacing-xs) 0;
}

.project-meta {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin: 0;
}

.project-actions {
  display: flex;
  gap: var(--spacing-sm);
}

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

/* ============================================================================
   SCROLLBAR
   ============================================================================ */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-panel);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-light);
}

/* ============================================================================
   ANIMATIONS
   ============================================================================ */

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ============================================================================
   PERFORMANCE OPTIMIZATIONS
   ============================================================================ */

.card,
.stat-card,
.phase-progress,
.status-item {
  contain: layout style paint;
}

.sidebar-content,
.log-container {
  contain: layout;
}

/* GPU Acceleration */
.btn,
.nav-item,
.mobile-nav-item,
.tab,
.modal-content {
  will-change: transform;
}

/* ============================================================================
   PRINT STYLES
   ============================================================================ */

@media print {
  .sidebar,
  .mobile-header,
  .mobile-nav,
  .sidebar-overlay,
  .btn,
  .card-actions {
    display: none !important;
  }
  
  .main-content {
    margin-left: 0 !important;
    margin-top: 0 !important;
  }
  
  .card {
    page-break-inside: avoid;
  }
}