/* ============================================================
   N4 Orbit — Design System
   Tokens, componentes base e utilitários.
   ============================================================ */

:root {
  /* Brand */
  --orbit-purple-950: #0d0516;
  --orbit-purple-900: #1a0a2e;
  --orbit-purple-800: #2d1554;
  --orbit-purple-700: #3d1f7a;
  --orbit-purple-600: #5b2d9e;
  --orbit-purple-500: #7c3aed;
  --orbit-purple-400: #9d5cf6;
  --orbit-purple-300: #b87ef8;
  --orbit-purple-200: #d4b0fb;
  --orbit-purple-100: #ede8fd;

  --orbit-yellow-500: #FBDA25;
  --orbit-yellow-400: #fce459;
  --orbit-yellow-300: #fded8a;
  --orbit-yellow-600: #d4b800;

  /* Neutros */
  --orbit-gray-950: #0a0a0f;
  --orbit-gray-900: #111118;
  --orbit-gray-800: #1c1c27;
  --orbit-gray-700: #2a2a3d;
  --orbit-gray-600: #3d3d57;
  --orbit-gray-500: #5a5a7a;
  --orbit-gray-400: #7a7a9a;
  --orbit-gray-300: #a0a0ba;
  --orbit-gray-200: #c8c8da;
  --orbit-gray-100: #e8e8f0;
  --orbit-gray-50: #f5f5fa;

  /* Semânticas — Dark mode (padrão) */
  --bg-base: var(--orbit-gray-950);
  --bg-surface: var(--orbit-gray-900);
  --bg-elevated: var(--orbit-gray-800);
  --bg-overlay: var(--orbit-gray-700);

  --border-subtle: rgba(255,255,255,0.06);
  --border-default: rgba(255,255,255,0.10);
  --border-strong: rgba(255,255,255,0.18);

  --text-primary: #f0f0f8;
  --text-secondary: var(--orbit-gray-300);
  --text-muted: var(--orbit-gray-500);
  --text-disabled: var(--orbit-gray-600);

  --accent-primary: var(--orbit-purple-500);
  --accent-primary-hover: var(--orbit-purple-400);
  --accent-secondary: var(--orbit-yellow-500);

  /* Status */
  --status-success: #22c55e;
  --status-warning: #f59e0b;
  --status-error: #ef4444;
  --status-info: #3b82f6;

  /* Sombras */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 24px rgba(124,58,237,0.3);

  /* Espaçamentos */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* Raios */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Tipografia */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --text-xs: 11px;
  --text-sm: 13px;
  --text-base: 14px;
  --text-md: 15px;
  --text-lg: 18px;
  --text-xl: 22px;
  --text-2xl: 28px;
  --text-3xl: 36px;

  /* Transições */
  --transition-fast: 100ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;

  /* Layout */
  --sidebar-width: 220px;
  --header-height: 52px;
}

/* Light mode */
[data-theme="light"] {
  --bg-base: var(--orbit-gray-50);
  --bg-surface: #ffffff;
  --bg-elevated: var(--orbit-gray-100);
  --bg-overlay: var(--orbit-gray-200);

  --border-subtle: rgba(0,0,0,0.05);
  --border-default: rgba(0,0,0,0.08);
  --border-strong: rgba(0,0,0,0.15);

  --text-primary: #0a0a14;
  --text-secondary: var(--orbit-gray-600);
  --text-muted: var(--orbit-gray-400);
  --text-disabled: var(--orbit-gray-300);

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --shadow-glow: 0 0 24px rgba(124,58,237,0.15);
}

/* Reset e base */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Scrollbar customizada */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }

/* Sidebar */
.orbit-sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-surface);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0; top: 0;
  z-index: 100;
}
.orbit-sidebar-logo {
  padding: var(--space-5) var(--space-5);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  border-bottom: 1px solid var(--border-subtle);
  min-height: var(--header-height);
}
.orbit-sidebar-logo-mark {
  width: 28px; height: 28px;
  background: var(--accent-primary);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 14px; color: white;
}
.orbit-sidebar-logo-text {
  font-size: var(--text-md);
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}
.orbit-sidebar-logo-text span {
  color: var(--accent-primary);
}

.orbit-nav { padding: var(--space-3) var(--space-3); flex: 1; overflow-y: auto; }
.orbit-nav-section { margin-bottom: var(--space-6); }
.orbit-nav-label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.8px;
  text-transform: uppercase;
  padding: 0 var(--space-2) var(--space-2);
}
.orbit-nav-item {
  display: flex;
  align-items: center;
  width: 100%;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text-secondary);
  text-decoration: none;
  text-align: left;
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: 500;
  transition: all var(--transition-fast);
  cursor: pointer;
  margin-bottom: 2px;
  -webkit-appearance: none;
  appearance: none;
}
.orbit-nav-item:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
}
.orbit-nav-item.active {
  background: rgba(124,58,237,0.15);
  color: var(--accent-primary);
}
.orbit-nav-item.active .orbit-nav-icon { color: var(--accent-primary); }
.orbit-nav-icon { width: 16px; height: 16px; opacity: 0.7; flex-shrink: 0; }
.orbit-nav-item.active .orbit-nav-icon { opacity: 1; }

.orbit-sidebar-footer {
  padding: var(--space-3);
  border-top: 1px solid var(--border-subtle);
}
.orbit-user-pill {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast);
}
.orbit-user-pill:hover { background: var(--bg-elevated); }
.orbit-avatar {
  width: 28px; height: 28px;
  border-radius: var(--radius-full);
  background: var(--accent-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--text-xs); font-weight: 700; color: white;
  flex-shrink: 0;
}
.orbit-user-info { flex: 1; min-width: 0; }
.orbit-user-name { font-size: var(--text-sm); font-weight: 500; color: var(--text-primary); }
.orbit-user-role { font-size: var(--text-xs); color: var(--text-muted); }

/* Header */
.orbit-header {
  height: var(--header-height);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  display: flex; align-items: center;
  padding: 0 var(--space-6);
  gap: var(--space-4);
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px);
}
.orbit-header-title {
  font-size: var(--text-md);
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}
.orbit-header-actions { margin-left: auto; display: flex; align-items: center; gap: var(--space-3); }

/* Botões */
.orbit-btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm); font-weight: 500;
  border: none; cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none; white-space: nowrap;
}
.orbit-btn-primary {
  background: var(--accent-primary);
  color: white;
}
.orbit-btn-primary:hover { background: var(--accent-primary-hover); box-shadow: var(--shadow-glow); }
.orbit-btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
}
.orbit-btn-secondary:hover { background: var(--bg-overlay); border-color: var(--border-strong); }
.orbit-btn-ghost { background: transparent; color: var(--text-secondary); }
.orbit-btn-ghost:hover { background: var(--bg-elevated); color: var(--text-primary); }
.orbit-btn-danger { background: rgba(239,68,68,0.15); color: #ef4444; border: 1px solid rgba(239,68,68,0.2); }
.orbit-btn-danger:hover { background: rgba(239,68,68,0.25); }
.orbit-btn-sm { padding: 5px var(--space-3); font-size: var(--text-xs); }
.orbit-btn-lg { padding: var(--space-3) var(--space-6); font-size: var(--text-md); }
.orbit-btn-icon { padding: var(--space-2); }

/* Cards */
.orbit-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.orbit-card-hover { transition: all var(--transition-base); cursor: pointer; }
.orbit-card-hover:hover {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-md), 0 0 0 1px rgba(124,58,237,.2), var(--shadow-glow);
  transform: translateY(-1px);
}

/* Stat cards */
.orbit-stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
}
.orbit-stat-label { font-size: var(--text-xs); color: var(--text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: var(--space-2); }
.orbit-stat-value { font-size: var(--text-2xl); font-weight: 700; color: var(--text-primary); letter-spacing: -0.5px; line-height: 1.2; }
.orbit-stat-delta { font-size: var(--text-xs); margin-top: var(--space-1); }
.orbit-stat-delta.up { color: var(--status-success); }
.orbit-stat-delta.down { color: var(--status-error); }

/* Tabelas */
.orbit-table-wrap { overflow-x: auto; }
.orbit-table { width: 100%; border-collapse: collapse; }
.orbit-table th {
  text-align: left;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
}
.orbit-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-subtle);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  vertical-align: middle;
}
.orbit-table tr:last-child td { border-bottom: none; }
.orbit-table tbody tr { transition: background var(--transition-fast); cursor: pointer; }
.orbit-table tbody tr:hover { background: var(--bg-elevated); }

/* Badges / Status */
.orbit-badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: var(--text-xs); font-weight: 600;
}
.orbit-badge-purple { background: rgba(124,58,237,0.15); color: var(--orbit-purple-300); }
.orbit-badge-green { background: rgba(34,197,94,0.15); color: #4ade80; }
.orbit-badge-yellow { background: rgba(251,218,37,0.15); color: var(--orbit-yellow-500); }
.orbit-badge-red { background: rgba(239,68,68,0.15); color: #f87171; }
.orbit-badge-gray { background: var(--bg-elevated); color: var(--text-muted); }
.orbit-badge-blue { background: rgba(59,130,246,0.15); color: #60a5fa; }
.orbit-badge::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: currentColor; }

/* Inputs */
.orbit-input, .orbit-select, .orbit-textarea {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}
.orbit-input:focus, .orbit-select:focus, .orbit-textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.15);
}
.orbit-input::placeholder { color: var(--text-muted); }
.orbit-label { font-size: var(--text-xs); font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: var(--space-2); display: block; }

/* Modais */
.orbit-modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  padding: var(--space-6);
}
.orbit-modal-overlay[hidden] { display: none !important; }
.orbit-modal {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  width: 100%; max-width: 480px;
  box-shadow: var(--shadow-lg);
  animation: orbit-modal-in 200ms ease;
}
@keyframes orbit-modal-in {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.orbit-modal-header {
  padding: var(--space-6);
  border-bottom: 1px solid var(--border-subtle);
  display: flex; align-items: center; justify-content: space-between;
}
.orbit-modal-title { font-size: var(--text-lg); font-weight: 600; color: var(--text-primary); }
.orbit-modal-body { padding: var(--space-6); }
.orbit-modal-footer { padding: var(--space-4) var(--space-6); border-top: 1px solid var(--border-subtle); display: flex; gap: var(--space-3); justify-content: flex-end; }

/* Toast */
.orbit-toast-container { position: fixed; bottom: var(--space-6); right: var(--space-6); z-index: 2000; display: flex; flex-direction: column; gap: var(--space-3); }
.orbit-toast {
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  color: var(--text-primary);
  box-shadow: var(--shadow-lg);
  animation: orbit-toast-in 200ms ease;
  min-width: 280px;
}
@keyframes orbit-toast-in {
  from { opacity: 0; transform: translateX(16px); }
  to { opacity: 1; transform: translateX(0); }
}

/* Layout principal */
/* .orbit-sidebar é position:fixed (fora do fluxo normal), então .orbit-layout
   não precisa ser flex — .orbit-main é o único elemento em fluxo e o
   margin-left reserva o espaço do sidebar de forma explícita e robusta,
   sem depender de como o motor de flexbox trataria um item fora do fluxo. */
.orbit-layout { min-height: 100vh; }
.orbit-main {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.orbit-content { flex: 1; padding: var(--space-8); width: 100%; box-sizing: border-box; }

@media (max-width: 900px) {
  .orbit-sidebar { position: static; width: 100%; height: auto; }
  .orbit-main { margin-left: 0; }
}

/* Toggle de tema */
.orbit-theme-toggle {
  width: 36px; height: 20px;
  background: var(--bg-overlay);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-default);
  cursor: pointer;
  position: relative;
  transition: background var(--transition-base);
}
.orbit-theme-toggle::after {
  content: '';
  position: absolute;
  top: 2px; left: 2px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: transform var(--transition-base), background var(--transition-base);
}
[data-theme="light"] .orbit-theme-toggle::after { transform: translateX(16px); background: var(--accent-primary); }

/* Utilitários */
.orbit-divider { height: 1px; background: var(--border-subtle); margin: var(--space-4) 0; }
.orbit-text-primary { color: var(--text-primary); }
.orbit-text-secondary { color: var(--text-secondary); }
.orbit-text-muted { color: var(--text-muted); }
.orbit-font-mono { font-family: var(--font-mono); }
.orbit-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4); }
.orbit-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.orbit-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
.orbit-flex { display: flex; }
.orbit-flex-center { display: flex; align-items: center; }
.orbit-gap-2 { gap: var(--space-2); }
.orbit-gap-3 { gap: var(--space-3); }
.orbit-gap-4 { gap: var(--space-4); }

/* Skeleton loading */
.orbit-skeleton {
  background: linear-gradient(90deg, var(--bg-elevated) 25%, var(--bg-overlay) 50%, var(--bg-elevated) 75%);
  background-size: 200% 100%;
  animation: orbit-shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes orbit-shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }

/* Progress bar */
.orbit-progress { height: 4px; background: var(--bg-elevated); border-radius: var(--radius-full); overflow: hidden; }
.orbit-progress-bar { height: 100%; background: var(--accent-primary); border-radius: var(--radius-full); transition: width var(--transition-slow); }

/* Tabs */
.orbit-tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--border-subtle); margin-bottom: var(--space-6); }
.orbit-tab {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm); font-weight: 500;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  font-family: inherit;
  cursor: pointer;
  margin-bottom: -1px;
  transition: all var(--transition-fast);
  -webkit-appearance: none;
  appearance: none;
}
.orbit-tab:hover { color: var(--text-secondary); }
.orbit-tab.active { color: var(--text-primary); border-bottom: 2px solid var(--accent-primary); }

/* Empty state */
.orbit-empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: var(--space-16);
  text-align: center;
}
.orbit-empty-icon { font-size: 40px; margin-bottom: var(--space-4); opacity: 0.4; }
.orbit-empty-title { font-size: var(--text-md); font-weight: 600; color: var(--text-secondary); margin-bottom: var(--space-2); }
.orbit-empty-desc { font-size: var(--text-sm); color: var(--text-muted); }

.stepper-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  margin: 8px 0 14px;
}
.stepper-item {
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 6px;
  white-space: nowrap;
}
.stepper-item.step-done {
  color: var(--text-muted);
  background: var(--bg-elevated);
}
.stepper-item.step-current {
  color: #fff;
  background: var(--accent-primary);
  font-weight: 600;
}
.stepper-item.step-future {
  color: var(--text-muted);
  opacity: 0.5;
}
.stepper-arrow {
  color: var(--text-muted);
  font-size: 12px;
}

.project-menu-toggle {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
}
.project-menu-toggle:hover {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #fff;
}

.stepper-item.step-rework {
  color: #fff;
  background: #d97706;
  font-weight: 600;
}