/* 기본 설정 styles.css */
:root {
    --primary-color: #2563eb;
    --primary-light: #3b82f6;
    --primary-dark: #1d4ed8;
    --secondary-color: #818cf8;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --light-bg: #f3f4f6;
    --card-bg: #ffffff;
    --sidebar-bg: #1e293b;
    --sidebar-text: #e2e8f0;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --border-color: #e5e7eb;

    --sidebar-width: 250px;
    --top-bar-height: 70px;
}

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

body {
    font-family: 'Pretendard', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-dark);
    background-color: var(--light-bg);
    line-height: 1.5;
}

/* 레이아웃 */
.container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 50;
}

.logo {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
}

.logo img {
    width: 40px;
    height: 40px;
    margin-right: 0.75rem;
}

.logo h1 {
    font-size: 1.2rem;
    font-weight: 600;
}

.main-nav {
    flex: 1;
    padding: 1.5rem 0;
    overflow-y: auto;
}

.main-nav ul {
    list-style: none;
}

.main-nav li {
    margin-bottom: 0.5rem;
}

.main-nav a {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: var(--sidebar-text);
    text-decoration: none;
    transition: all 0.2s;
}

.main-nav a i {
    margin-right: 0.75rem;
    width: 20px;
    text-align: center;
}

.main-nav a:hover, .main-nav a.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

.sidebar-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.8rem;
    opacity: 0.7;
}

.content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
}

.top-bar {
    height: var(--top-bar-height);
    background-color: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    z-index: 40;
}

.page-title h2 {
    font-size: 1.5rem;
    font-weight: 500;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.page-content {
    padding: 2rem;
    flex: 1;
    overflow-y: auto;
}

/* 카드 컴포넌트 */
.card {
    background-color: var(--card-bg);
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.card-title {
    font-size: 1.2rem;
    font-weight: 500;
}

.card-tools {
    display: flex;
    gap: 0.5rem;
}

.card-body {
    position: relative;
}

/* 버튼 스타일 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    text-decoration: none;
}

.btn i {
    margin-right: 0.5rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-dark);
}

.btn-outline:hover {
    background-color: var(--light-bg);
}

.btn-success {
    background-color: var(--success-color);
    color: white;
}

.btn-success:hover {
    background-color: #0ca678;
}

.btn-warning {
    background-color: var(--warning-color);
    color: white;
}

.btn-warning:hover {
    background-color: #d97706;
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background-color: #dc2626;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.125rem;
}

.btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

/* 테이블 스타일 */
.table-container {
    overflow-x: auto;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 0.75rem 1rem;
    text-align: left;
    vertical-align: middle;
}

th {
    background-color: var(--light-bg);
    font-weight: 500;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s;
}

tbody tr:last-child {
    border-bottom: none;
}

tbody tr:hover {
    background-color: rgba(243, 244, 246, 0.5);
}

/* 배지 */
.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
}

.badge-primary {
    background-color: var(--primary-light);
    color: white;
}

.badge-success {
    background-color: var(--success-color);
    color: white;
}

.badge-warning {
    background-color: var(--warning-color);
    color: white;
}

.badge-danger {
    background-color: var(--danger-color);
    color: white;
}

/* 폼 스타일 */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control:disabled {
    background-color: var(--light-bg);
    opacity: 0.65;
    cursor: not-allowed;
}

/* 페이지네이션 스타일 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 1.5rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.pagination-btn {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
    min-width: 2.5rem;
    text-align: center;
}

.pagination-btn:hover:not(:disabled):not(.active) {
    background-color: var(--light-bg);
}

.pagination-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

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

.pagination-info {
    font-size: 0.9rem;
    color: var(--text-light);
    margin: 0 0.5rem;
}

/* 모달 스타일 */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.modal {
    background-color: var(--card-bg);
    border-radius: 0.5rem;
    width: 95%;
    max-width: 1400px;
    max-height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    transform: translateY(-20px);
    opacity: 0;
    transition: transform 0.3s, opacity 0.3s;
}

.modal-header {
    padding: 1.25rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

.modal-title {
    font-size: 1.2rem;
    font-weight: 500;
}

.modal-close {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.25rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-body {
    padding: 1.25rem;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 1.25rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    flex-shrink: 0;
}

/* 로딩 애니메이션 */
.loading {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    background-color: white;
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.spinner {
    border: 3px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top: 3px solid var(--primary-color);
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 유틸리티 클래스 */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-left {
    text-align: left;
}

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

.text-success {
    color: var(--success-color);
}

.text-warning {
    color: var(--warning-color);
}

.text-danger {
    color: var(--danger-color);
}

.text-light {
    color: var(--text-light);
}

.text-dark {
    color: var(--text-dark);
}

.font-bold {
    font-weight: 700;
}

.font-semibold {
    font-weight: 600;
}

.font-medium {
    font-weight: 500;
}

.font-normal {
    font-weight: 400;
}

.font-light {
    font-weight: 300;
}

.text-sm {
    font-size: 0.875rem;
}

.text-base {
    font-size: 1rem;
}

.text-lg {
    font-size: 1.125rem;
}

.text-xl {
    font-size: 1.25rem;
}

.text-2xl {
    font-size: 1.5rem;
}

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.flex-row {
    flex-direction: row;
}

.items-center {
    align-items: center;
}

.items-start {
    align-items: flex-start;
}

.items-end {
    align-items: flex-end;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-start {
    justify-content: flex-start;
}

.justify-end {
    justify-content: flex-end;
}

.flex-wrap {
    flex-wrap: wrap;
}

.gap-1 {
    gap: 0.25rem;
}

.gap-2 {
    gap: 0.5rem;
}

.gap-3 {
    gap: 0.75rem;
}

.gap-4 {
    gap: 1rem;
}

.m-0 {
    margin: 0;
}

.m-1 {
    margin: 0.25rem;
}

.m-2 {
    margin: 0.5rem;
}

.m-3 {
    margin: 0.75rem;
}

.m-4 {
    margin: 1rem;
}

.mt-1 {
    margin-top: 0.25rem;
}

.mt-2 {
    margin-top: 0.5rem;
}

.mt-3 {
    margin-top: 0.75rem;
}

.mt-4 {
    margin-top: 1rem;
}

.mb-1 {
    margin-bottom: 0.25rem;
}

.mb-2 {
    margin-bottom: 0.5rem;
}

.mb-3 {
    margin-bottom: 0.75rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

.ml-1 {
    margin-left: 0.25rem;
}

.ml-2 {
    margin-left: 0.5rem;
}

.ml-3 {
    margin-left: 0.75rem;
}

.ml-4 {
    margin-left: 1rem;
}

.mr-1 {
    margin-right: 0.25rem;
}

.mr-2 {
    margin-right: 0.5rem;
}

.mr-3 {
    margin-right: 0.75rem;
}

.mr-4 {
    margin-right: 1rem;
}

.p-0 {
    padding: 0;
}

.p-1 {
    padding: 0.25rem;
}

.p-2 {
    padding: 0.5rem;
}

.p-3 {
    padding: 0.75rem;
}

.p-4 {
    padding: 1rem;
}

.pt-1 {
    padding-top: 0.25rem;
}

.pt-2 {
    padding-top: 0.5rem;
}

.pt-3 {
    padding-top: 0.75rem;
}

.pt-4 {
    padding-top: 1rem;
}

.pb-1 {
    padding-bottom: 0.25rem;
}

.pb-2 {
    padding-bottom: 0.5rem;
}

.pb-3 {
    padding-bottom: 0.75rem;
}

.pb-4 {
    padding-bottom: 1rem;
}

.pl-1 {
    padding-left: 0.25rem;
}

.pl-2 {
    padding-left: 0.5rem;
}

.pl-3 {
    padding-left: 0.75rem;
}

.pl-4 {
    padding-left: 1rem;
}

.pr-1 {
    padding-right: 0.25rem;
}

.pr-2 {
    padding-right: 0.5rem;
}

.pr-3 {
    padding-right: 0.75rem;
}

.pr-4 {
    padding-right: 1rem;
}

.w-full {
    width: 100%;
}

.w-1\/2 {
    width: 50%;
}

.w-1\/3 {
    width: 33.333333%;
}

.w-2\/3 {
    width: 66.666667%;
}

.w-1\/4 {
    width: 25%;
}

.w-3\/4 {
    width: 75%;
}

.h-full {
    height: 100%;
}

.h-screen {
    height: 100vh;
}

.rounded {
    border-radius: 0.25rem;
}

.rounded-md {
    border-radius: 0.375rem;
}

.rounded-lg {
    border-radius: 0.5rem;
}

.rounded-xl {
    border-radius: 0.75rem;
}

.rounded-full {
    border-radius: 9999px;
}

.border {
    border: 1px solid var(--border-color);
}

.border-t {
    border-top: 1px solid var(--border-color);
}

.border-b {
    border-bottom: 1px solid var(--border-color);
}

.border-l {
    border-left: 1px solid var(--border-color);
}

.border-r {
    border-right: 1px solid var(--border-color);
}

.shadow {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.shadow-md {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.shadow-lg {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.hidden {
    display: none;
}

.block {
    display: block;
}

.inline-block {
    display: inline-block;
}

.inline {
    display: inline;
}

.grid {
    display: grid;
}

.grid-cols-1 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
}

.grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.cursor-pointer {
    cursor: pointer;
}

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 다크 모드 (향후 구현을 위한 기본 설정) */
@media (prefers-color-scheme: dark) {
    :root {
        --light-bg: #1a1a1a;
        --card-bg: #2a2a2a;
        --text-dark: #e0e0e0;
        --text-light: #a0a0a0;
        --border-color: #3a3a3a;
    }
}

/* 반응형 미디어 쿼리 */
@media (max-width: 1200px) {
    .container {
        max-width: 100%;
    }
}

@media (max-width: 992px) {
    .grid-cols-4 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 768px) {
    .grid-cols-3, .grid-cols-4 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .sidebar {
        width: 60px;
        overflow: hidden;
    }

    .sidebar .logo h1, .sidebar-footer, .main-nav a span {
        display: none;
    }

    .content {
        margin-left: 60px;
    }

    .main-nav a {
        justify-content: center;
        padding: 0.75rem;
    }

    .main-nav a i {
        margin-right: 0;
        font-size: 1.25rem;
    }
}

@media (max-width: 640px) {
    .grid-cols-2, .grid-cols-3, .grid-cols-4 {
        grid-template-columns: repeat(1, minmax(0, 1fr));
    }

    .page-content {
        padding: 1rem;
    }

    .top-bar {
        padding: 0 1rem;
    }
}