/* admin.css - shadcn/ui 디자인 시스템 및 fi fi-rr 아이콘 스타일 */

@import url('https://cdn-uicons.flaticon.com/2.6.0/uicons-regular-rounded/css/uicons-regular-rounded.css');
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css');

/* ==========================================================================
   shadcn/ui Design Tokens (HSL Based)
   ========================================================================== */
:root {
  --background: 0 0% 100%;
  --foreground: 240 10% 3.9%;
  --card: 0 0% 100%;
  --card-foreground: 240 10% 3.9%;
  --popover: 0 0% 100%;
  --popover-foreground: 240 10% 3.9%;
  --primary: 240 5.9% 10%;
  --primary-foreground: 0 0% 98%;
  --secondary: 240 4.8% 95.9%;
  --secondary-foreground: 240 5.9% 10%;
  --muted: 240 4.8% 95.9%;
  --muted-foreground: 240 3.8% 46.1%;
  --accent: 240 4.8% 95.9%;
  --accent-foreground: 240 5.9% 10%;
  --destructive: 0 84.2% 60.2%;
  --destructive-foreground: 0 0% 98%;
  --border: 240 5.9% 90%;
  --input: 240 5.9% 90%;
  --ring: 240 5.9% 10%;
  --radius: 0.5rem;

  --success: 142 76% 36%;
  --success-foreground: 355 100% 97%;
  --warning: 38 92% 50%;
  --warning-foreground: 48 96% 89%;

  --font-sans: "Pretendard", -apple-system, BlinkMacSystemFont, system-ui, Roboto, "Helvetica Neue", "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.dark {
  --background: 240 10% 3.9%;
  --foreground: 0 0% 98%;
  --card: 240 10% 4.5%;
  --card-foreground: 0 0% 98%;
  --popover: 240 10% 4.5%;
  --popover-foreground: 0 0% 98%;
  --primary: 0 0% 98%;
  --primary-foreground: 240 5.9% 10%;
  --secondary: 240 3.7% 15.9%;
  --secondary-foreground: 0 0% 98%;
  --muted: 240 3.7% 15.9%;
  --muted-foreground: 240 5% 64.9%;
  --accent: 240 3.7% 15.9%;
  --accent-foreground: 0 0% 98%;
  --destructive: 0 62.8% 30.6%;
  --destructive-foreground: 0 0% 98%;
  --border: 240 3.7% 15.9%;
  --input: 240 3.7% 15.9%;
  --ring: 240 4.9% 83.9%;

  --success: 142 70% 45%;
  --success-foreground: 144 100% 97%;
  --warning: 48 96% 53%;
  --warning-foreground: 38 92% 10%;
}

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

html {
  font-size: 14px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: hsl(var(--background));
  color: hsl(var(--foreground));
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 스크린 리더 전용 텍스트 + 키보드 포커스 시 노출되는 본문 건너뛰기 링크 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link:focus {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 999;
  width: auto;
  height: auto;
  padding: 0.75rem 1rem;
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  border-radius: var(--radius);
  font-weight: 600;
}

a {
  color: inherit;
  text-decoration: none;
}

code, pre {
  font-family: var(--font-mono);
}

/* Icon Styles (Flaticon Uicons Regular Rounded) */
i.fi {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  vertical-align: -0.125em;
  font-style: normal;
}
.icon-sm { font-size: 0.875rem; }
.icon-md { font-size: 1rem; }
.icon-lg { font-size: 1.25rem; }
.icon-xl { font-size: 1.5rem; }

/* ==========================================================================
   Auth Header (Login View Only)
   ========================================================================== */
.auth-header {
  position: sticky;
  top: 0;
  z-index: 40;
  width: 100%;
  border-bottom: 1px solid hsl(var(--border));
  background-color: hsl(var(--background) / 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 3.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo {
  width: 30px;
  height: 30px;
  border-radius: var(--radius);
  transition: transform 0.2s ease;
}
.brand-wrapper:hover .brand-logo {
  transform: scale(1.05);
}

.brand-text-group {
  display: flex;
  flex-direction: column;
}

.brand-line {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: hsl(var(--foreground));
}

.brand-badge {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.15rem 0.45rem;
  background-color: hsl(var(--secondary));
  color: hsl(var(--secondary-foreground));
  border: 1px solid hsl(var(--border));
  border-radius: 9999px;
  font-family: var(--font-mono);
}

.brand-subtitle {
  font-size: 0.75rem;
  color: hsl(var(--muted-foreground));
}

/* ==========================================================================
   Dashboard Layout & Collapsible Sidebar (Zero Horizontal Scroll)
   ========================================================================== */
.dashboard-layout {
  display: flex;
  min-height: 100vh;
  width: 100%;
  overflow-x: hidden;
  background-color: hsl(var(--background));
}

/* Sidebar */
.app-sidebar {
  width: 240px;
  min-width: 240px;
  background-color: hsl(var(--card));
  border-right: 1px solid hsl(var(--border));
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 50;
  transition: width 0.2s cubic-bezier(0.16, 1, 0.3, 1), min-width 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.app-sidebar.collapsed {
  width: 68px;
  min-width: 68px;
}

.sidebar-header {
  height: 3.5rem;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid hsl(var(--border));
  flex-shrink: 0;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  overflow: hidden;
  white-space: nowrap;
}

.sidebar-brand-text {
  display: flex;
  flex-direction: column;
  transition: opacity 0.15s ease;
}

.sidebar-brand-title {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: hsl(var(--foreground));
  line-height: 1.2;
}

.sidebar-brand-sub {
  font-size: 0.7rem;
  color: hsl(var(--muted-foreground));
}

.app-sidebar.collapsed .sidebar-brand-text {
  display: none;
}

.sidebar-collapse-btn {
  width: 28px;
  height: 28px;
  padding: 0;
  border-radius: 6px;
  color: hsl(var(--muted-foreground));
  flex-shrink: 0;
}
.sidebar-collapse-btn:hover {
  color: hsl(var(--foreground));
  background-color: hsl(var(--secondary));
}
.sidebar-collapse-btn .toggle-icon {
  transition: transform 0.2s ease;
}
.app-sidebar.collapsed .sidebar-collapse-btn .toggle-icon {
  transform: rotate(180deg);
}

/* Sidebar Nav */
.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1rem 0.6rem;
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-nav .nav-item-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  background: transparent;
  color: hsl(var(--muted-foreground));
  font-size: 0.85rem;
  font-weight: 500;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
  width: 100%;
  text-align: left;
}

.sidebar-nav .nav-item-btn:hover {
  color: hsl(var(--foreground));
  background-color: hsl(var(--secondary));
}

.sidebar-nav .nav-item-btn.active {
  background-color: hsl(var(--secondary));
  color: hsl(var(--foreground));
  font-weight: 600;
  border-color: hsl(var(--border));
}

.sidebar-nav .nav-icon {
  font-size: 1.05rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 20px;
}

.sidebar-nav .nav-label {
  transition: opacity 0.15s ease;
  overflow: hidden;
  text-overflow: ellipsis;
}

.app-sidebar.collapsed .sidebar-nav .nav-item-btn {
  justify-content: center;
  padding: 0.6rem 0;
  gap: 0;
}

.app-sidebar.collapsed .sidebar-nav .nav-label {
  display: none;
}

/* Sidebar Footer */
.sidebar-footer {
  padding: 0.85rem 0.75rem;
  border-top: 1px solid hsl(var(--border));
  flex-shrink: 0;
}

.sidebar-status-card {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.6rem;
  background-color: hsl(var(--secondary) / 0.6);
  border: 1px solid hsl(var(--border));
  border-radius: calc(var(--radius) - 2px);
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: hsl(var(--muted-foreground));
  overflow: hidden;
  white-space: nowrap;
}

.status-indicator-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: hsl(var(--success));
  flex-shrink: 0;
}

.app-sidebar.collapsed .sidebar-status-card {
  justify-content: center;
  padding: 0.45rem 0;
}

.app-sidebar.collapsed .status-indicator-text {
  display: none;
}

/* ==========================================================================
   Dashboard Main Content Area & Topbar
   ========================================================================== */
.dashboard-main-area {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  overflow-x: hidden;
  background-color: hsl(var(--background));
}

.app-topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  height: 3.5rem;
  border-bottom: 1px solid hsl(var(--border));
  background-color: hsl(var(--background) / 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  gap: 1rem;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.mobile-menu-btn {
  display: none;
}

.desktop-toggle-btn {
  display: inline-flex;
}

.topbar-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  overflow: hidden;
  white-space: nowrap;
}

.breadcrumb-root {
  color: hsl(var(--muted-foreground));
  font-weight: 500;
}

.breadcrumb-sep {
  color: hsl(var(--muted-foreground) / 0.5);
  font-weight: 300;
}

.breadcrumb-current {
  color: hsl(var(--foreground));
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  background-color: hsl(var(--secondary));
  border-radius: 4px;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.user-action-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.user-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.65rem;
  border-radius: 9999px;
  background-color: hsl(var(--secondary));
  border: 1px solid hsl(var(--border));
  font-size: 0.8rem;
  font-weight: 500;
  color: hsl(var(--foreground));
}

.user-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: hsl(var(--success));
}

.user-action-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.user-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.65rem;
  border-radius: 9999px;
  background-color: hsl(var(--secondary));
  border: 1px solid hsl(var(--border));
  font-size: 0.8rem;
  font-weight: 500;
  color: hsl(var(--foreground));
}

.user-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: hsl(var(--success));
}

/* ==========================================================================
   Buttons (shadcn/ui style)
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--font-sans);
  line-height: 1;
  padding: 0.5rem 1rem;
  height: 2.25rem;
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid transparent;
  gap: 0.45rem;
  white-space: nowrap;
  outline: none;
}

.btn:focus-visible {
  box-shadow: 0 0 0 2px hsl(var(--background)), 0 0 0 4px hsl(var(--ring));
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
}
.btn-primary:hover:not(:disabled) {
  background-color: hsl(var(--primary) / 0.9);
}

.btn-secondary {
  background-color: hsl(var(--secondary));
  color: hsl(var(--secondary-foreground));
  border-color: hsl(var(--border));
}
.btn-secondary:hover:not(:disabled) {
  background-color: hsl(var(--secondary) / 0.8);
}

.btn-outline {
  background-color: transparent;
  border-color: hsl(var(--input));
  color: hsl(var(--foreground));
}
.btn-outline:hover:not(:disabled) {
  background-color: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
}

.btn-ghost {
  background-color: transparent;
  color: hsl(var(--foreground));
}
.btn-ghost:hover:not(:disabled) {
  background-color: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
}

.btn-destructive {
  background-color: hsl(var(--destructive));
  color: hsl(var(--destructive-foreground));
}
.btn-destructive:hover:not(:disabled) {
  background-color: hsl(var(--destructive) / 0.9);
}

.btn-sm {
  height: 1.875rem;
  padding: 0.25rem 0.65rem;
  font-size: 0.775rem;
  border-radius: calc(var(--radius) - 2px);
}

.btn-icon {
  width: 2.25rem;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.btn-icon.btn-sm {
  width: 1.875rem;
}

.btn-block {
  width: 100%;
}

/* ==========================================================================
   Badges (shadcn/ui style)
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  border-radius: 9999px;
  border: 1px solid hsl(var(--border));
  padding: 0.2rem 0.6rem;
  font-size: 0.725rem;
  font-weight: 600;
  line-height: 1;
  transition: colors 0.2s ease;
}

.badge-default {
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  border-color: transparent;
}

.badge-secondary {
  background-color: hsl(var(--secondary));
  color: hsl(var(--secondary-foreground));
}

.badge-outline {
  background-color: transparent;
  color: hsl(var(--foreground));
}

.badge-success {
  background-color: hsl(var(--success) / 0.12);
  color: hsl(var(--success));
  border-color: hsl(var(--success) / 0.25);
}

.badge-warning {
  background-color: hsl(var(--warning) / 0.12);
  color: hsl(var(--warning));
  border-color: hsl(var(--warning) / 0.25);
}

.badge-destructive {
  background-color: hsl(var(--destructive) / 0.12);
  color: hsl(var(--destructive));
  border-color: hsl(var(--destructive) / 0.25);
}

/* ==========================================================================
   Cards (shadcn/ui Card Component)
   ========================================================================== */
.card, .table-card {
  border-radius: calc(var(--radius) + 2px);
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
  color: hsl(var(--card-foreground));
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
  overflow: hidden;
}

.card-header, .table-header {
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid hsl(var(--border));
}

.card-title, .table-title {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: hsl(var(--foreground));
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-description {
  font-size: 0.85rem;
  color: hsl(var(--muted-foreground));
  margin-top: 0.25rem;
}

.card-content {
  padding: 1.5rem;
}

/* ==========================================================================
   Main Layout & Stat Grid
   ========================================================================== */
.app-main {
  flex: 1;
  max-width: 1320px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem 1.5rem;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  border-radius: var(--radius);
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
  padding: 1.25rem;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
  position: relative;
  transition: all 0.2s ease;
}
.stat-card:hover {
  border-color: hsl(var(--foreground) / 0.2);
}

.stat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: hsl(var(--muted-foreground));
}

.stat-icon {
  font-size: 1rem;
  color: hsl(var(--muted-foreground));
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: hsl(var(--foreground));
  line-height: 1.2;
}

.stat-sub {
  font-size: 0.75rem;
  color: hsl(var(--muted-foreground));
  margin-top: 0.4rem;
}

/* Feature Grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.feature-card {
  border-radius: var(--radius);
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
  padding: 1.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
}
.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px -4px rgba(0, 0, 0, 0.08);
  border-color: hsl(var(--foreground) / 0.25);
}

.feature-icon-wrapper {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  background-color: hsl(var(--secondary));
  border: 1px solid hsl(var(--border));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: hsl(var(--foreground));
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: hsl(var(--foreground));
}

.feature-card p {
  font-size: 0.825rem;
  color: hsl(var(--muted-foreground));
  line-height: 1.5;
  flex: 1;
  margin-bottom: 1rem;
}

.feature-link {
  font-size: 0.8rem;
  font-weight: 600;
  color: hsl(var(--foreground));
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.feature-card:hover .feature-link {
  text-decoration: underline;
}

/* ==========================================================================
   Table Component (shadcn style)
   ========================================================================== */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

.data-table th {
  padding: 0.75rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: hsl(var(--muted-foreground));
  background-color: hsl(var(--muted) / 0.4);
  border-bottom: 1px solid hsl(var(--border));
}

.data-table td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid hsl(var(--border) / 0.6);
  color: hsl(var(--foreground));
  vertical-align: middle;
}

.data-table tbody tr {
  transition: background-color 0.15s ease;
}

.data-table tbody tr:hover {
  background-color: hsl(var(--muted) / 0.5);
}

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

/* ==========================================================================
   Forms, Inputs & Search Box
   ========================================================================== */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.825rem;
  font-weight: 500;
  color: hsl(var(--foreground));
  margin-bottom: 0.45rem;
}

.form-input, .search-input {
  width: 100%;
  height: 2.25rem;
  border-radius: var(--radius);
  border: 1px solid hsl(var(--input));
  background-color: hsl(var(--background));
  color: hsl(var(--foreground));
  padding: 0.45rem 0.75rem;
  font-size: 0.85rem;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-input:focus, .search-input:focus {
  border-color: hsl(var(--ring));
  box-shadow: 0 0 0 1px hsl(var(--ring));
}

.form-input::placeholder, .search-input::placeholder {
  color: hsl(var(--muted-foreground));
}

.input-note {
  font-size: 0.75rem;
  color: hsl(var(--muted-foreground));
  margin-top: 0.35rem;
}

.search-box {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.search-input {
  flex: 1;
  min-width: 240px;
}

.otp-input {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.35em;
  text-align: center;
  height: 3rem;
}

/* ==========================================================================
   Alerts & Banners
   ========================================================================== */
.alert {
  display: flex;
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid;
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
  line-height: 1.5;
}

.alert-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  display: flex;
  align-items: flex-start;
  padding-top: 0.1rem;
}

.alert-content strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.alert-warning {
  background-color: hsl(var(--warning) / 0.08);
  border-color: hsl(var(--warning) / 0.3);
  color: hsl(var(--foreground));
}
.alert-warning .alert-icon {
  color: hsl(var(--warning));
}

.alert-info {
  background-color: hsl(var(--secondary));
  border-color: hsl(var(--border));
  color: hsl(var(--foreground));
}
.alert-info .alert-icon {
  color: hsl(var(--primary));
}

.alert-error {
  background-color: hsl(var(--destructive) / 0.08);
  border-color: hsl(var(--destructive) / 0.3);
  color: hsl(var(--destructive));
}

/* ==========================================================================
   Auth Cards & Modal (shadcn Dialog)
   ========================================================================== */
.auth-page-wrapper {
  min-height: calc(100vh - 4.5rem);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 1.5rem;
  width: 100%;
}

.auth-card, .auth-shell {
  max-width: 440px;
  width: 100%;
  margin: 0 auto;
  padding: 2.5rem 2.25rem;
  border-radius: calc(var(--radius) + 6px);
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.auth-header {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-icon-circle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background-color: hsl(var(--secondary));
  border: 1px solid hsl(var(--border));
  color: hsl(var(--foreground));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem auto;
}

.auth-footer-note {
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid hsl(var(--border));
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-size: 0.75rem;
  color: hsl(var(--muted-foreground));
  text-align: center;
}

.auth-logo {
  margin-bottom: 1rem;
  border-radius: var(--radius);
}

.auth-header h1 {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: hsl(var(--foreground));
  margin-bottom: 0.35rem;
}

.auth-header p {
  font-size: 0.85rem;
  color: hsl(var(--muted-foreground));
}

.auth-gate-card {
  text-align: center;
  padding: 4rem 2rem;
  border-radius: var(--radius);
  border: 1px dashed hsl(var(--border));
  background-color: hsl(var(--card));
}

.auth-gate-icon {
  font-size: 2rem;
  color: hsl(var(--muted-foreground));
  margin-bottom: 1rem;
}

.auth-gate-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.auth-gate-card p {
  font-size: 0.85rem;
  color: hsl(var(--muted-foreground));
  margin-bottom: 1.5rem;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

/* QR Code & Key Box */
.qr-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin: 1.5rem 0;
  padding: 1.25rem;
  background-color: hsl(var(--secondary) / 0.5);
  border-radius: var(--radius);
  border: 1px solid hsl(var(--border));
}

.qr-box {
  background-color: #ffffff;
  padding: 1rem;
  border-radius: var(--radius);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
  display: inline-flex;
}

.secret-key-box {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: hsl(var(--background));
  border: 1px solid hsl(var(--input));
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  margin-top: 0.35rem;
}

/* Modal Dialog */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 50;
  background-color: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-content {
  background-color: hsl(var(--card));
  color: hsl(var(--card-foreground));
  border: 1px solid hsl(var(--border));
  border-radius: calc(var(--radius) + 4px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
  width: 100%;
  max-width: 720px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modalIn 0.15s ease-out;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.97); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid hsl(var(--border));
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid hsl(var(--border));
  display: flex;
  justify-content: flex-end;
  background-color: hsl(var(--secondary) / 0.3);
}

/* Chunks list inside modal */
.chunks-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.chunk-card {
  padding: 1rem;
  border-radius: var(--radius);
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--secondary) / 0.3);
}

.chunk-meta {
  font-size: 0.75rem;
  color: hsl(var(--muted-foreground));
  margin-bottom: 0.45rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.chunk-text {
  font-size: 0.85rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  color: hsl(var(--foreground));
  background-color: hsl(var(--background));
  padding: 0.75rem;
  border-radius: calc(var(--radius) - 2px);
  border: 1px solid hsl(var(--border) / 0.6);
}

/* Search Result Item */
.search-result-item {
  padding: 1.25rem;
  border-radius: var(--radius);
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
  margin-bottom: 1rem;
  transition: border-color 0.15s ease;
}
.search-result-item:hover {
  border-color: hsl(var(--foreground) / 0.25);
}

.search-scores {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.score-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 9999px;
  border: 1px solid;
}
.score-sim {
  background-color: hsl(var(--success) / 0.12);
  color: hsl(var(--success));
  border-color: hsl(var(--success) / 0.3);
}
.score-overlap {
  background-color: hsl(var(--secondary));
  color: hsl(var(--foreground));
  border-color: hsl(var(--border));
}

/* ==========================================================================
   Responsive Utilities & Mobile Sidebar Drawer
   ========================================================================== */
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  z-index: 45;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.sidebar-backdrop.active {
  display: block;
  opacity: 1;
}

@media (max-width: 768px) {
  .app-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 50;
    transform: translateX(-100%);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.2);
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  }
  .app-sidebar.mobile-open {
    transform: translateX(0);
  }
  .mobile-menu-btn {
    display: inline-flex;
  }
  .desktop-toggle-btn {
    display: none;
  }
  .app-main {
    padding: 1.25rem 1rem 3rem 1rem;
  }
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 540px) {
  .stat-grid {
    grid-template-columns: 1fr;
  }
  .topbar-breadcrumb .breadcrumb-root,
  .topbar-breadcrumb .breadcrumb-sep {
    display: none;
  }
}

/* ==========================================================================
   Knowledge Ecosystem & Action Advisor Styles
   ========================================================================== */
.advisor-ns-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 0.85rem;
}

.advisor-ns-card {
  background-color: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.advisor-ns-card:hover {
  border-color: hsl(var(--primary));
  transform: translateY(-2px);
  box-shadow: 0 4px 12px -2px hsl(var(--primary) / 0.12);
}

.advisor-ns-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.advisor-ns-name {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: hsl(var(--foreground));
}

.advisor-ns-desc {
  font-size: 0.8rem;
  color: hsl(var(--muted-foreground));
  line-height: 1.45;
  margin-bottom: 0.75rem;
  flex-grow: 1;
}

.advisor-ns-footer {
  font-size: 0.7rem;
  color: hsl(var(--primary));
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.quick-search-card {
  background-color: hsl(var(--secondary) / 0.4);
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  padding: 1rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.quick-search-card:hover {
  background-color: hsl(var(--secondary) / 0.8);
  border-color: hsl(var(--primary) / 0.5);
}

/* Action Cards Grid */
.action-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.25rem;
}

.action-card {
  background-color: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  border-radius: var(--radius);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.action-card.type-component {
  border-left: 4px solid hsl(var(--primary));
}

.action-card.type-guard {
  border-left: 4px solid #f59e0b;
}

.action-card.type-deploy {
  border-left: 4px solid #10b981;
}

.action-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.75rem;
}

.action-card-title {
  font-weight: 700;
  font-size: 1rem;
  color: hsl(var(--foreground));
  line-height: 1.4;
}

.action-card-desc {
  font-size: 0.85rem;
  color: hsl(var(--muted-foreground));
  line-height: 1.5;
  margin-bottom: 1rem;
}

.snippet-box {
  background-color: hsl(240 5.9% 10%);
  border: 1px solid hsl(var(--border));
  border-radius: calc(var(--radius) - 2px);
  padding: 0.85rem;
  margin-bottom: 1rem;
  position: relative;
}

.snippet-box pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.45;
  color: hsl(240 5% 90%);
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

.btn-copy-snippet {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  padding: 0.25rem 0.5rem;
  font-size: 0.7rem;
  background-color: hsl(var(--secondary));
  color: hsl(var(--secondary-foreground));
  border: 1px solid hsl(var(--border));
  border-radius: 4px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.btn-copy-snippet:hover {
  background-color: hsl(var(--secondary) / 0.8);
}