/**
 * Cognitive Design System — ecossistema visual unificado
 */
:root {
  --cog-font: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  --cog-mono: ui-monospace, "Cascadia Code", Consolas, monospace;

  --cog-space-xs: 0.25rem;
  --cog-space-sm: 0.5rem;
  --cog-space-md: 1rem;
  --cog-space-lg: 1.5rem;
  --cog-space-xl: 2rem;

  --cog-radius-sm: 6px;
  --cog-radius-md: 10px;
  --cog-radius-lg: 14px;

  --cog-bg: #f4f6fa;
  --cog-surface: #ffffff;
  --cog-surface-2: #f8fafc;
  --cog-border: #e2e8f0;
  --cog-text: #0f172a;
  --cog-text-muted: #64748b;
  --cog-accent: #4f46e5;
  --cog-accent-soft: #eef2ff;
  --cog-accent-hover: #4338ca;
  --cog-success: #059669;
  --cog-success-bg: #ecfdf5;
  --cog-warning: #d97706;
  --cog-warning-bg: #fffbeb;
  --cog-danger: #dc2626;
  --cog-danger-bg: #fef2f2;
  --cog-info: #0284c7;
  --cog-info-bg: #f0f9ff;

  --cog-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --cog-shadow-md: 0 4px 14px rgba(15, 23, 42, 0.08);
  --cog-shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.1);

  --cog-transition: 0.18s ease;
  --cog-rail-w: 280px;
  --cog-rail-collapsed: 52px;
}

/* Tipografia */
.cog-page {
  font-family: var(--cog-font);
  color: var(--cog-text);
  background: var(--cog-bg);
  line-height: 1.5;
}

.cog-title { font-size: 1.35rem; font-weight: 700; letter-spacing: -0.02em; margin: 0; }
.cog-subtitle { font-size: 0.8125rem; color: var(--cog-text-muted); margin: 0.15rem 0 0; }
.cog-label {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--cog-text-muted);
}

/* Grid */
.cog-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--cog-space-md);
}
.cog-span-4 { grid-column: span 4; }
.cog-span-6 { grid-column: span 6; }
.cog-span-8 { grid-column: span 8; }
.cog-span-12 { grid-column: span 12; }

@media (max-width: 1100px) {
  .cog-span-4, .cog-span-6, .cog-span-8 { grid-column: span 12; }
}

/* Layout hub */
.cog-layout {
  display: flex;
  min-height: 100vh;
  max-width: 1600px;
  margin: 0 auto;
}

.cog-main {
  flex: 1;
  min-width: 0;
  padding: var(--cog-space-lg);
}

.cog-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--cog-space-md);
  margin-bottom: var(--cog-space-lg);
}

/* Rail contextual */
.cog-rail {
  width: var(--cog-rail-w);
  flex-shrink: 0;
  background: var(--cog-surface);
  border-right: 1px solid var(--cog-border);
  display: flex;
  flex-direction: column;
  transition: width var(--cog-transition);
  z-index: 10;
}

.cog-rail.collapsed { width: var(--cog-rail-collapsed); }
.cog-rail.collapsed .cog-rail-text,
.cog-rail.collapsed .cog-rail-section-title,
.cog-rail.collapsed .cog-rail-insight-body { display: none; }

.cog-rail-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--cog-space-md);
  border-bottom: 1px solid var(--cog-border);
}

.cog-rail-toggle {
  width: 32px;
  height: 32px;
  border: 1px solid var(--cog-border);
  border-radius: var(--cog-radius-sm);
  background: var(--cog-surface-2);
  cursor: pointer;
  font-size: 0.85rem;
}

.cog-rail-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--cog-space-sm);
  min-height: 0;
}

.cog-rail-section { margin-bottom: var(--cog-space-md); }
.cog-rail-section-title {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--cog-text-muted);
  padding: 0.35rem 0.5rem;
}

.cog-rail-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.45rem 0.5rem;
  border: none;
  border-radius: var(--cog-radius-sm);
  background: transparent;
  color: var(--cog-text);
  font-size: 0.8125rem;
  text-align: left;
  cursor: pointer;
  text-decoration: none;
}

.cog-rail-link:hover { background: var(--cog-accent-soft); }
.cog-rail-link.active { background: var(--cog-accent-soft); color: var(--cog-accent); font-weight: 600; }

.cog-rail-icon {
  width: 1.5rem;
  text-align: center;
  flex-shrink: 0;
}

/* Painéis padronizados */
.cog-panel {
  background: var(--cog-surface);
  border: 1px solid var(--cog-border);
  border-radius: var(--cog-radius-lg);
  box-shadow: var(--cog-shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--cog-transition), border-color var(--cog-transition);
}

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

.cog-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--cog-space-sm);
  padding: var(--cog-space-md) var(--cog-space-md) 0.65rem;
  border-bottom: 1px solid var(--cog-border);
}

.cog-panel-title { font-size: 0.9375rem; font-weight: 600; margin: 0; }
.cog-panel-badge {
  font-size: 0.65rem;
  font-weight: 600;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  background: var(--cog-accent-soft);
  color: var(--cog-accent);
}

.cog-panel-body { padding: var(--cog-space-md); font-size: 0.875rem; }
.cog-panel-foot {
  padding: 0.65rem var(--cog-space-md);
  border-top: 1px solid var(--cog-border);
  background: var(--cog-surface-2);
}

.cog-panel--insight { border-left: 3px solid var(--cog-accent); }
.cog-panel--metric .cog-metric-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--cog-accent);
  line-height: 1.1;
}
.cog-panel--alert { border-left: 3px solid var(--cog-warning); }
.cog-panel--success { border-left: 3px solid var(--cog-success); }

.cog-list { list-style: none; margin: 0; padding: 0; }
.cog-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--cog-border);
  font-size: 0.8125rem;
}
.cog-list li:last-child { border-bottom: none; }

/* Hierarquia níveis */
.cog-level-1 {
  display: flex;
  flex-wrap: wrap;
  gap: var(--cog-space-sm);
  margin-bottom: var(--cog-space-lg);
}

.cog-level-2 { margin-bottom: var(--cog-space-md); }
.cog-level-3 { opacity: 0.95; }

.cog-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid var(--cog-border);
  background: var(--cog-surface);
  color: var(--cog-text);
  cursor: pointer;
  transition: background var(--cog-transition);
}

.cog-chip:hover { background: var(--cog-accent-soft); border-color: transparent; }
.cog-chip.primary { background: var(--cog-accent); color: #fff; border-color: transparent; }

/* Menu Cognitivo (topbar) */
.cog-menu-wrap { position: relative; }

.cog-menu-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--cog-border);
  border-radius: var(--cog-radius-md);
  background: linear-gradient(180deg, #fff, var(--cog-surface-2));
  color: var(--cog-text);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--cog-shadow-sm);
}

.cog-menu-trigger:hover { border-color: var(--cog-accent); color: var(--cog-accent); }
.cog-menu-trigger[aria-expanded="true"] {
  border-color: var(--cog-accent);
  background: var(--cog-accent-soft);
}

.cog-menu-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  width: min(360px, 92vw);
  max-height: min(70vh, 520px);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: var(--cog-surface);
  border: 1px solid var(--cog-border);
  border-radius: var(--cog-radius-lg);
  box-shadow: var(--cog-shadow-lg);
  z-index: 300;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--cog-transition), transform var(--cog-transition), visibility var(--cog-transition);
}

.cog-menu-dropdown.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.cog-menu-search {
  padding: var(--cog-space-sm);
  border-bottom: 1px solid var(--cog-border);
}

.cog-menu-search input {
  width: 100%;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--cog-border);
  border-radius: var(--cog-radius-sm);
  font-size: 0.8125rem;
}

.cog-menu-search input:focus {
  outline: 2px solid var(--cog-accent);
  outline-offset: 1px;
}

.cog-menu-body {
  overflow-y: auto;
  padding: var(--cog-space-sm);
  flex: 1;
  min-height: 0;
}

.cog-menu-category {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--cog-text-muted);
  padding: 0.5rem 0.35rem 0.25rem;
}

.cog-menu-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  width: 100%;
  padding: 0.5rem 0.45rem;
  border: none;
  border-radius: var(--cog-radius-sm);
  background: transparent;
  text-align: left;
  cursor: pointer;
  color: var(--cog-text);
}

.cog-menu-item:hover { background: var(--cog-accent-soft); }
.cog-menu-item.hidden { display: none; }

.cog-menu-item-icon {
  width: 1.75rem;
  height: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--cog-radius-sm);
  background: var(--cog-accent-soft);
  color: var(--cog-accent);
  font-size: 0.85rem;
  flex-shrink: 0;
}

.cog-menu-item-label { font-size: 0.8125rem; font-weight: 600; display: block; }
.cog-menu-item-desc { font-size: 0.7rem; color: var(--cog-text-muted); display: block; margin-top: 0.1rem; }

.cog-menu-fav {
  margin-left: auto;
  border: none;
  background: none;
  cursor: pointer;
  opacity: 0.35;
  font-size: 0.9rem;
  padding: 0.15rem;
}

.cog-menu-item.is-favorite .cog-menu-fav { opacity: 1; color: var(--cog-warning); }

.cog-menu-footer {
  padding: var(--cog-space-sm);
  border-top: 1px solid var(--cog-border);
  font-size: 0.75rem;
  color: var(--cog-text-muted);
  text-align: center;
}

/* Calendário — painel nível 2 */
.cog-calendar-panel {
  margin-top: var(--cog-space-md);
  padding: var(--cog-space-md);
  background: var(--cog-surface);
  border: 1px solid var(--cog-border);
  border-radius: var(--cog-radius-lg);
  box-shadow: var(--cog-shadow-sm);
}

.cog-calendar-panel .cog-panel-head { padding: 0 0 0.65rem; border: none; }

.cog-calendar-panel.collapsed .cog-panel-body,
.cog-calendar-panel.collapsed .cog-panel-foot { display: none; }

/* Rail no calendário (direita) */
.cog-app-rail {
  width: 0;
  overflow: hidden;
  flex-shrink: 0;
  transition: width var(--cog-transition);
  background: var(--cog-surface);
  border-left: 1px solid var(--cog-border);
}

.cog-app-rail.open { width: min(300px, 32vw); }

.shell-view-calendar .app-layout.cog-rail-open {
  max-width: none;
}

.shell-view-calendar .app-layout.cog-rail-open .cog-app-rail {
  width: min(300px, 32vw);
}

/* Estados visuais */
.cog-state-loading .cog-panel-body {
  min-height: 4rem;
  background: linear-gradient(90deg, var(--cog-surface-2) 25%, #fff 50%, var(--cog-surface-2) 75%);
  background-size: 200% 100%;
  animation: cog-shimmer 1.2s ease-in-out infinite;
}

@keyframes cog-shimmer {
  0% { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}

.cog-empty {
  text-align: center;
  padding: var(--cog-space-lg);
  color: var(--cog-text-muted);
  font-size: 0.8125rem;
}

.cog-empty-icon { font-size: 1.5rem; opacity: 0.5; display: block; margin-bottom: 0.35rem; }

/* Feedback / toasts */
.cog-toast-host {
  position: fixed;
  bottom: var(--cog-space-lg);
  right: var(--cog-space-lg);
  z-index: 500;
  display: flex;
  flex-direction: column;
  gap: var(--cog-space-sm);
  pointer-events: none;
}

.cog-toast {
  pointer-events: auto;
  padding: 0.65rem 1rem;
  border-radius: var(--cog-radius-md);
  background: var(--cog-text);
  color: #fff;
  font-size: 0.8125rem;
  box-shadow: var(--cog-shadow-lg);
  animation: cog-toast-in 0.25s ease;
  max-width: 320px;
}

.cog-toast.success { background: var(--cog-success); }
.cog-toast.warning { background: var(--cog-warning); }
.cog-toast.error { background: var(--cog-danger); }
.cog-toast.ai { background: var(--cog-accent); }

@keyframes cog-toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.cog-ai-pulse {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cog-accent);
  animation: cog-pulse 1s ease infinite;
  margin-right: 0.35rem;
  vertical-align: middle;
}

@keyframes cog-pulse {
  0%, 100% { opacity: 0.4; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.1); }
}

/* Centro de notificações */
.cog-notif-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.35);
  z-index: 400;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--cog-transition), visibility var(--cog-transition);
}

.cog-notif-backdrop.open { opacity: 1; visibility: visible; }

.cog-notif-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(400px, 100vw);
  height: 100%;
  background: var(--cog-surface);
  box-shadow: var(--cog-shadow-lg);
  z-index: 401;
  transform: translateX(100%);
  transition: transform 0.22s ease;
  display: flex;
  flex-direction: column;
}

.cog-notif-drawer.open { transform: translateX(0); }

.cog-notif-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--cog-space-md);
  border-bottom: 1px solid var(--cog-border);
}

.cog-notif-tabs {
  display: flex;
  gap: 0.25rem;
  padding: 0 var(--cog-space-md);
  border-bottom: 1px solid var(--cog-border);
}

.cog-notif-tab {
  padding: 0.5rem 0.65rem;
  border: none;
  background: none;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--cog-text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.cog-notif-tab.active { color: var(--cog-accent); border-bottom-color: var(--cog-accent); }

.cog-notif-list {
  flex: 1;
  overflow-y: auto;
  padding: var(--cog-space-sm);
  list-style: none;
  margin: 0;
}

.cog-notif-item {
  padding: 0.75rem;
  border-radius: var(--cog-radius-md);
  border: 1px solid var(--cog-border);
  margin-bottom: var(--cog-space-sm);
  font-size: 0.8125rem;
}

.cog-notif-item.priority-high { border-left: 3px solid var(--cog-danger); }
.cog-notif-item.priority-medium { border-left: 3px solid var(--cog-warning); }

.cog-notif-dismiss {
  float: right;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--cog-text-muted);
  font-size: 1rem;
  line-height: 1;
}

/* Calendário — eventos inteligentes */
.event-card.cog-smart { box-shadow: inset 0 0 0 1px rgba(79, 70, 229, 0.35); }
.event-card.cog-focus {
  background: linear-gradient(135deg, #eef2ff, #e0e7ff) !important;
  border-left: 3px solid var(--cog-accent) !important;
}
.event-card.has-conflict,
.event-card.cog-conflict {
  background: var(--danger-bg) !important;
  border-color: var(--conflict-border) !important;
}
.event-card.cog-recurring::after {
  content: "↻";
  font-size: 0.65rem;
  margin-left: 0.2rem;
  opacity: 0.7;
}

/* Acessibilidade */
.cog-menu-item:focus-visible,
.cog-rail-link:focus-visible,
.cog-chip:focus-visible,
.cog-menu-trigger:focus-visible {
  outline: 2px solid var(--cog-accent);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .cog-state-loading .cog-panel-body,
  .cog-toast,
  .cog-ai-pulse { animation: none; }
  .cog-menu-dropdown,
  .cog-notif-drawer,
  .cog-rail { transition: none; }
}

@media (max-width: 900px) {
  .cog-rail { display: none; }
  .cog-app-rail.open { width: 100%; position: fixed; right: 0; top: var(--shell-top-h, 56px); bottom: 0; z-index: 180; }
}

/* Embed */
.cog-embed .cog-layout { min-height: auto; }
.cog-embed .cog-rail { display: none; }