/* ============================================
   yeolabs admin - 공통 스타일
   ============================================ */

/* === 라이트 모드 (기본) === */
:root {
  --bg-base: #f8f9fa;
  --bg-surface: #ffffff;
  --bg-hover: #f3f4f6;
  --bg-active: #eef2ff;
  --bg-table-head: #f9fafb;
  --bg-table-hover: #fafbfc;
  --bg-tab-group: #f3f4f6;
  --bg-tab-active: #ffffff;
  --bg-avatar: #eef2ff;
  --bg-badge-success: #ecfdf5;
  --bg-badge-neutral: #f3f4f6;

  --text-primary: #1a1a1a;
  --text-secondary: #4b5563;
  --text-tertiary: #6b7280;
  --text-muted: #9ca3af;
  --text-label: #9ca3af;

  --border-base: #e8eaed;
  --border-soft: #f3f4f6;
  --border-input: #d1d5db;

  --accent: #4338ca;
  --accent-hover: #3730a3;
  --accent-light: #eef2ff;
  --accent-text: #4338ca;

  --success: #10b981;
  --success-dark: #047857;
  --danger: #ef4444;
}

/* === 다크 모드 === */
body.dark {
  --bg-base: #0f1115;
  --bg-surface: #181b22;
  --bg-hover: #22262f;
  --bg-active: #2a2f3d;
  --bg-table-head: #1e222a;
  --bg-table-hover: #1e222a;
  --bg-tab-group: #22262f;
  --bg-tab-active: #2a2f3d;
  --bg-avatar: #2a2f3d;
  --bg-badge-success: #0e2d24;
  --bg-badge-neutral: #22262f;

  --text-primary: #f3f4f6;
  --text-secondary: #d1d5db;
  --text-tertiary: #9ca3af;
  --text-muted: #6b7280;
  --text-label: #6b7280;

  --border-base: #2a2f3d;
  --border-soft: #22262f;
  --border-input: #374151;

  --accent: #818cf8;
  --accent-hover: #a5b4fc;
  --accent-light: #2a2f3d;
  --accent-text: #a5b4fc;

  --success: #34d399;
  --success-dark: #6ee7b7;
  --danger: #f87171;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Pretendard', 'Segoe UI', sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.6;
  transition: background 0.2s, color 0.2s;
}

/* ============================================
   레이아웃
   ============================================ */
.layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

/* ============================================
   사이드바
   ============================================ */
.sidebar {
  background: var(--bg-surface);
  border-right: 1px solid var(--border-base);
  padding: 24px 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.sidebar-header {
  padding: 0 20px 24px;
  border-bottom: 1px solid var(--border-base);
  margin-bottom: 16px;
}
.logo {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.logo-sub {
  font-size: 12px;
  color: var(--text-tertiary);
}

.nav-section {
  padding: 16px 12px 8px;
}
.nav-section-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-label);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0 8px 8px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--text-secondary);
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  text-decoration: none;
}
.nav-item:hover {
  background: var(--bg-hover);
}
.nav-item.active {
  background: var(--bg-active);
  color: var(--accent-text);
  font-weight: 500;
}
.nav-icon {
  width: 16px;
  height: 16px;
  display: inline-block;
}

/* 사이드바 하단 (테마 토글) */
.sidebar-footer {
  margin-top: auto;
  padding: 16px 20px;
  border-top: 1px solid var(--border-base);
}
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border: 1px solid var(--border-input);
  border-radius: 6px;
  background: var(--bg-surface);
  cursor: pointer;
  font-size: 13px;
  color: var(--text-secondary);
  width: 100%;
  transition: background 0.15s;
  font-family: inherit;
}
.theme-toggle:hover {
  background: var(--bg-hover);
}
.theme-toggle-icon {
  font-size: 14px;
}

/* ============================================
   메인 콘텐츠 영역
   ============================================ */
.main {
  padding: 32px 40px;
  overflow-x: hidden;
}
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 16px;
}
.page-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
}
.page-desc {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: 4px;
}
.header-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* ============================================
   버튼
   ============================================ */
.btn {
  padding: 8px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-input);
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: background 0.15s;
  font-family: inherit;
}
.btn:hover {
  background: var(--bg-hover);
}
.btn-primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-hover);
}

/* ============================================
   탭 (앱 선택용)
   ============================================ */
.app-tabs {
  display: flex;
  gap: 4px;
  background: var(--bg-tab-group);
  border-radius: 8px;
  padding: 4px;
}
.app-tab {
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.app-tab.active {
  background: var(--bg-tab-active);
  color: var(--text-primary);
  font-weight: 500;
}

/* ============================================
   통계 카드
   ============================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}
.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-base);
  border-radius: 8px;
  padding: 20px;
}
.stat-label {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-bottom: 8px;
}
.stat-value {
  font-size: 28px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.stat-change {
  font-size: 12px;
  color: var(--success);
}
.stat-change.down {
  color: var(--danger);
}
.stat-change.muted {
  color: var(--text-muted);
}

/* ============================================
   일반 카드
   ============================================ */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-base);
  border-radius: 8px;
  padding: 20px;
}
.card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* 2단 그리드 */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 32px;
}

/* ============================================
   상태 리스트
   ============================================ */
.status-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.status-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-soft);
}
.status-item:last-child {
  border-bottom: none;
}
.status-name {
  font-size: 13px;
  color: var(--text-secondary);
}
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--success);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
}
.status-dot.down {
  background: var(--danger);
}
.status-badge.down {
  color: var(--danger);
}
.status-meta {
  font-size: 11px;
  color: var(--text-muted);
}

/* ============================================
   테이블
   ============================================ */
.table-wrap {
  background: var(--bg-surface);
  border: 1px solid var(--border-base);
  border-radius: 8px;
  overflow: hidden;
}
.table-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-base);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.table-header-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}
.table-header-sub {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 2px;
}

table {
  width: 100%;
  border-collapse: collapse;
}
th {
  text-align: left;
  padding: 12px 20px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-tertiary);
  background: var(--bg-table-head);
  border-bottom: 1px solid var(--border-base);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
td {
  padding: 14px 20px;
  font-size: 13px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-soft);
}
tr:last-child td {
  border-bottom: none;
}
tr:hover td {
  background: var(--bg-table-hover);
}

/* 사용자 셀 (이름 + 이메일) */
.user-cell {
  display: flex;
  align-items: center;
  gap: 10px;
}
.avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-avatar);
  color: var(--accent-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 500;
}
.user-name {
  font-weight: 500;
  color: var(--text-primary);
}
.user-email {
  font-size: 12px;
  color: var(--text-tertiary);
}

/* 배지 */
.badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 11px;
  border-radius: 4px;
  font-weight: 500;
}
.badge-active {
  background: var(--bg-badge-success);
  color: var(--success-dark);
}
.badge-inactive {
  background: var(--bg-badge-neutral);
  color: var(--text-tertiary);
}

.empty-row {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
}

/* ============================================
   로그인 페이지
   ============================================ */
.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-base);
  padding: 20px;
}
.login-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-base);
  border-radius: 12px;
  padding: 40px;
  width: 100%;
  max-width: 380px;
}
.login-header {
  text-align: center;
  margin-bottom: 32px;
}
.form-group {
  margin-bottom: 16px;
}
.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.form-input {
  width: 100%;
  padding: 10px 12px;
  font-size: 14px;
  border: 1px solid var(--border-input);
  border-radius: 6px;
  background: var(--bg-surface);
  color: var(--text-primary);
  font-family: inherit;
  transition: border-color 0.15s;
}
.form-input:focus {
  outline: none;
  border-color: var(--accent);
}
.login-error {
  font-size: 13px;
  color: var(--danger);
  margin-bottom: 16px;
}
.login-btn {
  width: 100%;
  padding: 10px;
  font-size: 14px;
  font-weight: 500;
  margin-top: 8px;
}

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

@media (max-width: 768px) {
  .layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: relative;
    height: auto;
  }
  .main {
    padding: 20px;
  }
}