/* ========================================
   글로벌 디자인 시스템
   CSS 변수 기반 테마 + 유틸리티
   ====================================== */

/* 라이트 테마 (기본값) */
:root {
  /* 색상 팔레트 */
  --color-bg-primary: #f2f2f2;
  --color-bg-secondary: #ffffff;
  --color-bg-tertiary: #f7f7f7;
  --color-bg-card: #ffffff;
  --color-bg-card-hover: #fafafa;
  --color-bg-input: #f0f1f5;

  --color-surface: rgba(255, 255, 255, 0.9);
  --color-surface-hover: rgba(243, 244, 248, 0.95);
  --color-glass: rgba(255, 255, 255, 0.7);
  --color-glass-border: rgba(99, 102, 241, 0.1);

  --color-text-primary: #1a1a2e;
  --color-text-secondary: #555570;
  --color-text-muted: #8e8ea0;
  --color-text-inverse: #f1f1f7;

  --color-accent-primary: #6366f1;
  --color-accent-primary-hover: #4f46e5;
  --color-accent-secondary: #ec4899;
  --color-accent-gradient: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);

  --color-success: #059669;
  --color-success-bg: rgba(5, 150, 105, 0.08);
  --color-warning: #d97706;
  --color-warning-bg: rgba(217, 119, 6, 0.08);
  --color-error: #dc2626;
  --color-error-bg: rgba(220, 38, 38, 0.08);
  --color-info: #2563eb;
  --color-info-bg: rgba(37, 99, 235, 0.08);

  --color-border: rgba(0, 0, 0, 0.08);
  --color-border-hover: rgba(99, 102, 241, 0.25);

  /* 타이포그래피 */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.8125rem;
  --font-size-base: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --line-height: 1.6;

  /* 간격 */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 0.75rem;
  --spacing-base: 1rem;
  --spacing-lg: 1.25rem;
  --spacing-xl: 1.5rem;
  --spacing-2xl: 2rem;
  --spacing-3xl: 3rem;

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

  /* 그림자 */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.08);

  /* 트랜지션 */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* 레이아웃 */
  --sidebar-width: 260px;
  --header-height: 64px;
}

/* 다크 테마 */
[data-theme="dark"] {
  --color-bg-primary: #0f0f1a;
  --color-bg-secondary: #1a1a2e;
  --color-bg-tertiary: #16213e;
  --color-bg-card: #1e1e36;
  --color-bg-card-hover: #252542;
  --color-bg-input: #12122a;

  --color-surface: rgba(30, 30, 54, 0.8);
  --color-surface-hover: rgba(37, 37, 66, 0.9);
  --color-glass: rgba(30, 30, 54, 0.6);
  --color-glass-border: rgba(99, 102, 241, 0.15);

  --color-text-primary: #f1f1f7;
  --color-text-secondary: #a0a0c0;
  --color-text-muted: #6b6b8d;
  --color-text-inverse: #0f0f1a;

  --color-accent-primary: #6366f1;
  --color-accent-primary-hover: #818cf8;
  --color-accent-secondary: #ec4899;

  --color-success: #10b981;
  --color-success-bg: rgba(16, 185, 129, 0.12);
  --color-warning: #f59e0b;
  --color-warning-bg: rgba(245, 158, 11, 0.12);
  --color-error: #ef4444;
  --color-error-bg: rgba(239, 68, 68, 0.12);
  --color-info: #3b82f6;
  --color-info-bg: rgba(59, 130, 246, 0.12);

  --color-border: rgba(99, 102, 241, 0.12);
  --color-border-hover: rgba(99, 102, 241, 0.3);

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.15);
}

/* ========================================
   리셋 & 기본 스타일
   ====================================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

/* ========================================
   레이아웃
   ====================================== */
#app {
  display: flex;
  min-height: 100vh;
}

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

.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  background: var(--color-bg-secondary);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 var(--spacing-2xl);
  z-index: 50;
}

.page-content {
  flex: 1;
  padding: var(--spacing-2xl);
  max-width: 1400px;
  width: 100%;
}

/* ========================================
   사이드바 스타일
   ====================================== */
.sidebar-logo {
  padding: var(--spacing-xl) var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.sidebar-logo-icon {
  width: 36px;
  height: 36px;
  background: var(--color-accent-gradient);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  color: white;
}

.sidebar-logo-text {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-nav {
  flex: 1;
  padding: var(--spacing-base) var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.sidebar-section-label {
  padding: var(--spacing-lg) var(--spacing-md) var(--spacing-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-base);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-fast);
  cursor: pointer;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
}

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

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

.nav-item-icon {
  font-size: 1.1rem;
  width: 20px;
  text-align: center;
}

/* ========================================
   버튼 시스템
   ====================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent-gradient);
  color: white;
  box-shadow: var(--shadow-sm), 0 0 20px rgba(99, 102, 241, 0.2);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md), 0 0 30px rgba(99, 102, 241, 0.3);
}
.btn-primary:active {
  transform: translateY(0);
}

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

.btn-danger {
  background: var(--color-error-bg);
  color: var(--color-error);
  border: 1px solid rgba(239, 68, 68, 0.2);
}
.btn-danger:hover {
  background: rgba(239, 68, 68, 0.2);
}

.btn-success {
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}
.btn-success:hover {
  background: rgba(16, 185, 129, 0.2);
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--spacing-base) var(--spacing-2xl);
  font-size: var(--font-size-md);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ========================================
   카드 시스템
   ====================================== */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
}

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

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

.card-title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

/* ========================================
   통계 카드
   ====================================== */

/* 모든 통계+비용 카드를 1행 flex로 나열 */
.stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  align-items: stretch;
  margin-bottom: var(--spacing-2xl);
}

/* display:contents → 자식이 stats-row의 직계 flex 아이템이 된다 */
.stats-grid {
  display: contents;
}

.stat-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-width: 120px;
  transition: all var(--transition-base);
  cursor: default;
}

.stat-card:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.stat-icon {
  display: none;
}

.stat-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xs);
}

.stat-value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  background: var(--stat-color, var(--color-accent-gradient));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

/* ========================================
   상태 뱃지
   ====================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.02em;
}

.badge-scraped {
  background: var(--color-info-bg);
  color: var(--color-info);
}
.badge-translating {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  animation: pulse 2s ease infinite;
}
.badge-translated {
  background: rgba(139, 92, 246, 0.12);
  color: #a78bfa;
}
.badge-reviewing {
  background: var(--color-warning-bg);
  color: var(--color-warning);
}
.badge-uploading {
  background: var(--color-info-bg);
  color: var(--color-info);
  animation: pulse 2s ease infinite;
}
.badge-uploaded {
  background: var(--color-success-bg);
  color: var(--color-success);
}
.badge-failed {
  background: var(--color-error-bg);
  color: var(--color-error);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* ========================================
   입력 필드
   ====================================== */
.form-group {
  margin-bottom: var(--spacing-lg);
}

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

.form-input {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-base);
  background: var(--color-bg-input);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast);
}

.form-input:focus {
  border-color: var(--color-accent-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* ========================================
   테이블 / 기사 목록
   ====================================== */
.article-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.article-row {
  display: grid;
  grid-template-columns: auto auto 1fr auto auto;
  gap: var(--spacing-lg);
  align-items: center;
  padding: var(--spacing-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.article-row:hover {
  border-color: var(--color-border-hover);
  background: var(--color-bg-card-hover);
  transform: translateX(4px);
}

.article-checkbox {
  width: 18px;
  height: 18px;
  accent-color: var(--color-accent-primary);
  cursor: pointer;
}

.article-info {
  min-width: 0;
}

.article-title {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

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

.article-actions {
  display: flex;
  gap: var(--spacing-sm);
}

/* ========================================
   미리보기 (좌우 분할)
   ====================================== */
.split-view {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  height: calc(100vh - var(--header-height) - var(--spacing-2xl) * 2 - 60px);
}

.split-pane {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.split-pane-header {
  padding: var(--spacing-base) var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.split-pane-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-xl);
  line-height: 1.8;
}

.split-pane-body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin: var(--spacing-base) 0;
}

.split-pane-body h3 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-base);
  color: var(--color-accent-primary-hover);
}

.split-pane-body hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--spacing-xl) 0;
}

/* ========================================
   토스트 알림
   ====================================== */
.toast-container {
  position: fixed;
  top: var(--spacing-xl);
  right: var(--spacing-xl);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-base) var(--spacing-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  animation: slideIn 300ms ease;
  max-width: 400px;
  font-size: var(--font-size-sm);
}

.toast-success { border-left: 3px solid var(--color-success); }
.toast-error { border-left: 3px solid var(--color-error); }
.toast-info { border-left: 3px solid var(--color-info); }
.toast-warning { border-left: 3px solid var(--color-warning); }

.toast-icon { font-size: 1.2rem; }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes slideOut {
  from { transform: translateX(0); opacity: 1; }
  to { transform: translateX(100%); opacity: 0; }
}

/* ========================================
   모달
   ====================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-overlay.hidden {
  display: none;
}

.modal {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-lg);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

/* ========================================
   프로그레스 바
   ====================================== */
.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--color-bg-input);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--color-accent-gradient);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

/* ========================================
   필터 바
   ====================================== */
.filter-bar {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
}

.filter-chip {
  padding: var(--spacing-sm) var(--spacing-base);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-chip:hover {
  border-color: var(--color-accent-primary);
  color: var(--color-accent-primary);
}

.filter-chip.active {
  background: rgba(99, 102, 241, 0.15);
  border-color: var(--color-accent-primary);
  color: var(--color-accent-primary-hover);
}

/* 일괄 동작 버튼용 색상 변형 — filter-chip 구조를 공유하되 색만 교체 */
.filter-chip.chip-success {
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.4);
  color: #059669;
}
.filter-chip.chip-success:hover {
  background: rgba(16, 185, 129, 0.2);
  border-color: #10b981;
  color: #047857;
}

.filter-chip.chip-danger {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.4);
  color: #dc2626;
}
.filter-chip.chip-danger:hover {
  background: rgba(239, 68, 68, 0.2);
  border-color: #ef4444;
  color: #b91c1c;
}

/* ========================================
   액션 바 (미리보기 상단)
   ====================================== */
.action-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
  gap: var(--spacing-md);
}

.action-bar-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.action-bar-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.back-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-base);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.back-btn:hover {
  background: var(--color-surface-hover);
  color: var(--color-text-primary);
}

/* ========================================
   스크롤바
   ====================================== */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--color-text-muted);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-secondary);
}

/* ========================================
   로딩 스피너
   ====================================== */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl);
  color: var(--color-text-muted);
  gap: var(--spacing-md);
}

/* ========================================
   빈 상태
   ====================================== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl);
  text-align: center;
  color: var(--color-text-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-lg);
  opacity: 0.5;
}

.empty-state-text {
  font-size: var(--font-size-md);
  margin-bottom: var(--spacing-xl);
}

/* ========================================
   설정 페이지
   ====================================== */
.settings-section {
  margin-bottom: var(--spacing-2xl);
}

.settings-section-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

/* ========================================
   반응형
   ====================================== */
@media (max-width: 1024px) {
  .split-view {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .main-content {
    margin-left: 0;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   테마 토글 버튼
   ====================================== */
.theme-toggle {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-base);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  background: none;
  border: 1px solid var(--color-border);
  width: 100%;
  text-align: left;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-border-hover);
  color: var(--color-text-primary);
}

.theme-toggle-icon {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle-icon svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}