/* ========================================
   관리자 페이지 공통 스타일
======================================== */

:root {
  --admin-container-max-width: 1200px;
  --admin-header-height: 72px;
  --admin-tab-gap: 0.5rem;
  --admin-content-padding: 2rem;
}

/* 헤더 스타일 */
.header {
  background: white;
  border-bottom: 1px solid var(--border, #e5e7eb);
  padding: 1rem;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  max-width: var(--admin-container-max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
}

/* 컨테이너 스타일 */
.container {
  max-width: var(--admin-container-max-width);
  margin: 0 auto;
  padding: 2rem 1rem;
}

/* 탭 컨테이너 스타일 */
.tab-container {
  display: flex;
  gap: var(--admin-tab-gap);
  margin-bottom: 2rem;
  background: white;
  padding: 0.5rem;
  border-radius: 0.75rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  flex-wrap: wrap;
}

/* 탭 버튼 스타일 */
.tab-btn {
  padding: 0.75rem 1.5rem;
  border: none;
  background: transparent;
  color: var(--gray-600, #4b5563);
  cursor: pointer;
  font-weight: 500;
  font-size: 0.875rem;
  border-radius: 0.5rem;
  transition: all 0.2s;
  font-family: inherit;
}

.tab-btn:hover:not(.active) {
  background: var(--gray-100, #f3f4f6);
  color: var(--gray-800, #1f2937);
}

.tab-btn.active {
  background: var(--green, #16a34a);
  color: white;
}

/* 탭 컨텐츠 스타일 */
.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* 섹션 카드 스타일 */
.section-card {
  background: white;
  border-radius: 0.75rem;
  padding: var(--admin-content-padding);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  margin-bottom: 2rem;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.section-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
  color: var(--gray-900, #111827);
}

/* 버튼 스타일 */
.btn {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: inherit;
}

.btn-primary {
  background: var(--green, #16a34a);
  color: white;
}

.btn-primary:hover {
  background: var(--green-dark, #15803d);
}

.btn-secondary {
  background: white;
  color: var(--text, #374151);
  border: 1px solid var(--border, #e5e7eb);
}

.btn-secondary:hover {
  background: var(--gray-50, #f9fafb);
}

/* 폼 요소 스타일 */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--gray-700, #374151);
}

.form-control {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 0.375rem;
  font-size: 0.875rem;
  font-family: inherit;
  color: var(--text, #374151);
  background: white;
  transition: all 0.2s;
}

.form-control:focus {
  outline: none;
  border-color: var(--green, #16a34a);
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.1);
}

/* 반응형 */
@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
  }
  
  .header h1 {
    font-size: 1.25rem;
  }
  
  .container {
    padding: 1rem;
  }
  
  .section-card {
    padding: 1.5rem;
  }
  
  .tab-btn {
    padding: 0.5rem 1rem;
    font-size: 0.813rem;
  }
}