/* =============================================================================
   ADM-MABUS - Global Styles (index.css)
   Sistema Operacional Fase 1
   ============================================================================= */

/* -----------------------------------------------------------------------------
   CSS Variables (Design Tokens)
   ----------------------------------------------------------------------------- */
:root {
  /* Colors - Dark Theme (Default) */
  --color-bg-primary: #0a0a0f;
  --color-bg-secondary: #13131a;
  --color-bg-tertiary: #1a1a24;
  --color-bg-card: #1e1e2a;
  --color-bg-hover: #252532;
  
  --color-text-primary: #f0f0f5;
  --color-text-secondary: #a0a0b0;
  --color-text-muted: #6b6b80;
  
  --color-accent-primary: #6366f1;
  --color-accent-secondary: #818cf8;
  --color-accent-hover: #4f46e5;
  
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;
  
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(255, 255, 255, 0.15);
  
  /* Glassmorphism */
  --glass-bg: rgba(30, 30, 42, 0.8);
  --glass-blur: blur(12px);
  --glass-border: rgba(255, 255, 255, 0.1);
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --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;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* -----------------------------------------------------------------------------
   Typography
   ----------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

a {
  color: var(--color-accent-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-primary);
}

/* -----------------------------------------------------------------------------
   Layout Components
   ----------------------------------------------------------------------------- */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-6);
}

.page-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* -----------------------------------------------------------------------------
   Cards
   ----------------------------------------------------------------------------- */
.card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--transition-normal);
}

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

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

/* -----------------------------------------------------------------------------
   Buttons
   ----------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
  color: white;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

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

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

.btn-danger:hover {
  background: #dc2626;
}

.btn-sm {
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: var(--space-4) var(--space-6);
  font-size: var(--font-size-base);
}

/* -----------------------------------------------------------------------------
   Form Elements
   ----------------------------------------------------------------------------- */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

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

/* -----------------------------------------------------------------------------
   Tables
   ----------------------------------------------------------------------------- */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  padding: var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.table th {
  background: var(--color-bg-tertiary);
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.table tr:hover {
  background: var(--color-bg-hover);
}

.table tr:last-child td {
  border-bottom: none;
}

/* -----------------------------------------------------------------------------
   Badges & Status
   ----------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
}

.badge-success {
  background: rgba(34, 197, 94, 0.15);
  color: var(--color-success);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.15);
  color: var(--color-warning);
}

.badge-error {
  background: rgba(239, 68, 68, 0.15);
  color: var(--color-error);
}

.badge-info {
  background: rgba(59, 130, 246, 0.15);
  color: var(--color-info);
}

.badge-neutral {
  background: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
}

/* -----------------------------------------------------------------------------
   Kanban Board
   ----------------------------------------------------------------------------- */
.kanban-board {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-4);
  padding: var(--space-4) 0;
}

.kanban-column {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  min-height: 400px;
}

.kanban-column-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.kanban-column-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.kanban-column-count {
  background: var(--color-accent-primary);
  color: white;
  font-size: var(--font-size-xs);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-full);
  min-width: 24px;
  text-align: center;
}

.kanban-column-body {
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.kanban-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.kanban-card-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.kanban-card-meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* -----------------------------------------------------------------------------
   Sidebar Navigation
   ----------------------------------------------------------------------------- */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 260px;
  height: 100vh;
  background: var(--color-bg-secondary);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  z-index: 100;
}

.sidebar-header {
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.sidebar-logo {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-accent-primary);
}

.sidebar-nav {
  flex: 1;
  padding: var(--space-4);
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-1);
  transition: all var(--transition-fast);
}

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

.nav-item.active {
  background: rgba(99, 102, 241, 0.15);
  color: var(--color-accent-primary);
}

.main-content {
  margin-left: 260px;
  padding: var(--space-6);
  min-height: 100vh;
}

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

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

.animate-fadeIn {
  animation: fadeIn 0.3s ease-out;
}

.animate-pulse {
  animation: pulse 2s infinite;
}

/* -----------------------------------------------------------------------------
   Utilities
   ----------------------------------------------------------------------------- */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--color-text-muted); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-error { color: var(--color-error); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }

.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }

.hidden { display: none; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}