/* ============================================
   Shaiya Version Patcher - 관리자 스타일
   ============================================ */

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

:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
    --radius: 8px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

/* 네비게이션 */
.navbar {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.nav-menu {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-menu li a {
    text-decoration: none;
    color: var(--text);
    padding: 8px 16px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    transition: all 0.2s;
}

.nav-menu li a:hover {
    background: var(--bg);
    color: var(--primary);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: 16px;
    padding-left: 16px;
    border-left: 1px solid var(--border);
}

.btn-logout {
    color: var(--danger) !important;
    font-size: 0.85rem;
}

/* 메인 콘텐츠 */
.main-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 24px 20px;
}

h1 {
    font-size: 1.75rem;
    margin-bottom: 20px;
    color: var(--text);
}

h2 {
    font-size: 1.25rem;
    margin-bottom: 16px;
}

/* 카드 */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

/* 통계 그리드 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
}

.stat-icon {
    font-size: 2rem;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.stat-active .stat-value {
    color: var(--success);
}

/* 대시보드 그리드 */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

@media (max-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

/* 테이블 */
.table-responsive {
    overflow-x: auto;
}

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

.table th {
    background: var(--bg);
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border);
}

.table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}

.table tr:hover {
    background: #f1f5f9;
}

.table-sm th,
.table-sm td {
    padding: 8px 12px;
    font-size: 0.8rem;
}

/* 뱃지 */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-active {
    background: #d1fae5;
    color: #065f46;
}

.badge-inactive {
    background: #fee2e2;
    color: #991b1b;
}

/* 버튼 */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    text-align: center;
}

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

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

.btn-secondary {
    background: var(--bg);
    color: var(--text);
    border-color: var(--border);
}

.btn-secondary:hover {
    background: var(--border);
}

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

.btn-success:hover {
    background: #059669;
}

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

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

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

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

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.btn-block {
    width: 100%;
}

/* 폼 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 0.9rem;
}

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

.form-group small {
    display: block;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: 4px;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="file"],
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    transition: border-color 0.2s;
    background: white;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.form-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

/* 파일 업로드 영역 */
.file-upload-area {
    position: relative;
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.file-upload-area:hover {
    border-color: var(--primary);
    background: #f8f6ff;
}

.file-upload-area input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.file-upload-text {
    pointer-events: none;
}

.upload-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 12px;
}

.file-upload-text p {
    font-size: 1rem;
    color: var(--text);
}

.file-upload-text small {
    color: var(--text-muted);
}

.file-info {
    margin-top: 12px;
    padding: 12px;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: var(--radius);
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
}

/* 플래시 메시지 */
.flash {
    padding: 14px 18px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: 0.9rem;
    border: 1px solid transparent;
}

.flash-success {
    background: #f0fdf4;
    border-color: #bbf7d0;
    color: #166534;
}

.flash-error {
    background: #fef2f2;
    border-color: #fecaca;
    color: #991b1b;
}

.flash-warning {
    background: #fffbeb;
    border-color: #fde68a;
    color: #92400e;
}

/* 빈 상태 */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
}

.empty-state p {
    font-size: 1.1rem;
    margin-bottom: 16px;
}

/* 해시 코드 */
.hash-code {
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.8rem;
    background: #f1f5f9;
    padding: 2px 6px;
    border-radius: 4px;
    cursor: default;
}

/* 액션 버튼 */
.action-buttons {
    white-space: nowrap;
}

.action-buttons form {
    margin-right: 4px;
}

/* 푸터 */
.footer {
    text-align: center;
    padding: 20px;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--border);
    margin-top: 40px;
}

/* 로그인 페이지 */
.login-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-header h1 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.login-header p {
    color: var(--text-muted);
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-footer-text {
    text-align: center;
    margin-top: 24px;
    color: var(--text-muted);
}

/* 반응형 */
@media (max-width: 768px) {
    .nav-menu {
        flex-wrap: wrap;
        gap: 4px;
    }
    
    .nav-menu li a {
        font-size: 0.8rem;
        padding: 6px 10px;
    }
    
    .nav-user {
        margin-left: 0;
        padding-left: 0;
        border-left: none;
    }
    
    h1 {
        font-size: 1.4rem;
    }
    
    .card {
        padding: 16px;
    }
}