/* ==========================================================================
   CLAW-NEWS.COM - NAVIGATION & LAYOUT
   Unified with design-system.css for consistent corporate identity
   ========================================================================== */

/* Import the unified design system */
@import url('./design-system.css');

/* ==========================================================================
   APP GRID SHELL
   ========================================================================== */

.app {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  grid-template-rows: var(--header-height) 1fr;
  grid-template-areas:
    "sidebar header"
    "sidebar content";
  height: 100vh;
  height: 100dvh;
}

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

.sidebar {
  grid-area: sidebar;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  color: var(--sidebar-text);
}

/* Logo area */
.sidebar-logo {
  height: var(--header-height);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: 0 var(--sp-4);
  border-bottom: 1px solid var(--sidebar-border);
  flex-shrink: 0;
}

.sidebar-logo-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.sidebar-logo-text {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--sidebar-text);
  letter-spacing: -0.02em;
}

.sidebar-logo-text span {
  color: var(--brand-primary);
}

/* Nav scroll area */
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: var(--sp-3) 0;
  scrollbar-width: thin;
  scrollbar-color: var(--sidebar-border) transparent;
}

.sidebar-nav::-webkit-scrollbar {
  width: 6px;
}

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

.sidebar-nav::-webkit-scrollbar-thumb {
  background-color: var(--sidebar-border);
  border-radius: 3px;
}

/* Section labels */
.nav-section {
  margin-bottom: var(--sp-2);
}

.nav-section-label {
  display: block;
  padding: var(--sp-4) var(--sp-4) var(--sp-2);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-inverse-secondary);
  user-select: none;
}

/* Nav items */
.nav-item {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  height: 36px;
  padding: 0 var(--sp-3);
  margin: 1px var(--sp-2);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-inverse-secondary);
  transition: background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
  position: relative;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--sidebar-text);
}

.nav-item.active {
  background: rgba(118, 185, 0, 0.15);
  color: var(--brand-primary);
  font-weight: var(--font-semibold);
}

.nav-item .icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.7;
}

.nav-item:hover .icon,
.nav-item.active .icon {
  opacity: 1;
}

.nav-item .badge {
  margin-left: auto;
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--brand-primary);
  background: rgba(118, 185, 0, 0.15);
  padding: 1px 6px;
  border-radius: var(--radius-full);
  line-height: 1.4;
}

.nav-item .badge.alert {
  color: #fff;
  background: var(--error);
}

.nav-item .shortcut {
  margin-left: auto;
  font-size: 0.625rem;
  color: var(--text-inverse-secondary);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--sidebar-border);
  padding: 0 5px;
  border-radius: var(--radius-sm);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.nav-item:hover .shortcut {
  opacity: 1;
}

/* Nested items */
.nav-item.nested {
  padding-left: var(--sp-8);
  font-size: 0.78rem;
  height: 32px;
}

/* Sidebar footer */
.sidebar-footer {
  padding: var(--sp-3) var(--sp-4);
  border-top: 1px solid var(--sidebar-border);
  flex-shrink: 0;
}

.sidebar-status {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-xs);
  color: var(--text-inverse-secondary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse 2s ease-in-out infinite;
}

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

.app-header {
  grid-area: header;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--sp-6);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-primary);
  z-index: var(--z-sticky);
}

/* Breadcrumbs */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--text-sm);
}

.breadcrumbs a {
  color: var(--text-inverse-secondary);
  transition: color var(--transition-fast);
}

.breadcrumbs a:hover {
  color: var(--text-primary);
}

.breadcrumbs .sep {
  color: var(--text-inverse-secondary);
  font-size: var(--text-xs);
}

.breadcrumbs .current {
  color: var(--text-primary);
  font-weight: var(--font-medium);
}

/* Header right actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

/* Search trigger button */
.search-trigger {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 6px var(--sp-3);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-inverse-secondary);
  font-size: var(--text-sm);
  transition: border-color var(--transition-fast), color var(--transition-fast);
  min-width: 200px;
  cursor: pointer;
}

.search-trigger:hover {
  border-color: var(--border-hover);
  color: var(--text-inverse-secondary);
}

.search-trigger .icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.search-trigger kbd {
  margin-left: auto;
  font-size: 0.625rem;
  font-family: var(--font-sans);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 0 5px;
  border-radius: 3px;
  color: var(--text-inverse-secondary);
}

/* ==========================================================================
   CONTENT AREA
   ========================================================================== */

.content {
  grid-area: content;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--bg-primary);
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

.content::-webkit-scrollbar {
  width: 8px;
}

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

.content::-webkit-scrollbar-thumb {
  background-color: var(--border-color);
  border-radius: 4px;
}

.content-inner {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: var(--sp-8);
}

/* Page title block */
.page-title-block {
  margin-bottom: var(--sp-8);
}

.page-title {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: var(--leading-tight);
  margin-bottom: var(--sp-2);
}

.page-title span {
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-subtitle {
  margin-top: var(--sp-2);
  font-size: var(--text-lg);
  color: var(--text-inverse-secondary);
  font-weight: var(--font-normal);
}

/* ==========================================================================
   MOBILE / RESPONSIVE
   ========================================================================== */

.mobile-header {
  display: none;
}

@media (max-width: 1023px) {
  .app {
    grid-template-columns: 1fr;
    grid-template-rows: var(--header-height) 1fr;
    grid-template-areas:
      "header"
      "content";
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    z-index: var(--z-modal);
    transform: translateX(-100%);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.4);
  }

  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: var(--z-overlay);
  }

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

  .mobile-header {
    display: flex;
  }

  .search-trigger {
    min-width: auto;
  }

  .search-trigger span {
    display: none;
  }
}

@media (max-width: 640px) {
  .content-inner {
    padding: var(--sp-4);
  }

  .search-trigger kbd {
    display: none;
  }
}

/* ==========================================================================
   HAMBURGER BUTTON
   ========================================================================== */

.hamburger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-inverse-secondary);
  transition: background var(--transition-fast);
  cursor: pointer;
}

.hamburger:hover {
  background: var(--bg-surface);
}

.hamburger svg {
  width: 20px;
  height: 20px;
}

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

/* ==========================================================================
   COMMAND PALETTE
   ========================================================================== */

.cmd-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  justify-content: center;
  padding-top: 15vh;
}

.cmd-overlay.open {
  display: flex;
}

.cmd-palette {
  width: 90%;
  max-width: 560px;
  max-height: 420px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: cmd-enter 0.15s ease-out;
}

@keyframes cmd-enter {
  from {
    transform: scale(0.97) translateY(8px);
    opacity: 0;
  }
  to {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
}

.cmd-input-wrap {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-4);
  border-bottom: 1px solid var(--border-color);
}

.cmd-input-wrap .icon {
  width: 18px;
  height: 18px;
  color: var(--text-inverse-secondary);
  flex-shrink: 0;
}

.cmd-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: var(--text-lg);
  font-family: var(--font-sans);
}

.cmd-input::placeholder {
  color: var(--text-inverse-secondary);
}

.cmd-results {
  flex: 1;
  overflow-y: auto;
  padding: var(--sp-2);
}

.cmd-group-label {
  padding: var(--sp-3) var(--sp-3) var(--sp-1);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-inverse-secondary);
}

.cmd-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-md);
  color: var(--text-inverse-secondary);
  transition: background var(--transition-fast);
  cursor: pointer;
}

.cmd-item:hover,
.cmd-item.selected {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

.cmd-item .icon {
  width: 16px;
  height: 16px;
  color: var(--brand-primary);
  flex-shrink: 0;
}

.cmd-item-label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
}

.cmd-item-desc {
  font-size: var(--text-xs);
  color: var(--text-inverse-secondary);
  margin-left: auto;
}

.cmd-footer {
  padding: var(--sp-2) var(--sp-4);
  border-top: 1px solid var(--border-color);
  font-size: var(--text-xs);
  color: var(--text-inverse-secondary);
  display: flex;
  gap: var(--sp-4);
}

.cmd-footer kbd {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  padding: 0 4px;
  border-radius: 3px;
  margin-right: 2px;
}

/* ==========================================================================
   REDUCED MOTION
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}