:root{--color-bg: #f5f6f8;--color-surface: #ffffff;--color-border: #e2e5ea;--color-text: #1f2430;--color-text-muted: #6b7280;--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-danger: #dc2626;--radius: 8px}*{box-sizing:border-box}body{margin:0;font-family:Pretendard,Apple SD Gothic Neo,Malgun Gothic,-apple-system,sans-serif;background:var(--color-bg);color:var(--color-text)}button{font-family:inherit;cursor:pointer;border:1px solid var(--color-border);background:var(--color-surface);border-radius:var(--radius);padding:6px 12px;font-size:13px;color:var(--color-text)}button:hover{background:var(--color-bg)}button.primary{background:var(--color-primary);border-color:var(--color-primary);color:#fff}button.primary:hover{background:var(--color-primary-hover)}button.danger{background:var(--color-surface);border-color:var(--color-danger);color:var(--color-danger)}button.danger:hover{background:#fef2f2}.dialog-text{color:var(--color-text-muted);font-size:14px;margin:0}button:disabled{opacity:.5;cursor:not-allowed}.link-button{border:none;background:none;padding:0;color:var(--color-primary);text-decoration:none}.link-button:hover{text-decoration:underline;background:none}input{font-family:inherit;font-size:14px;padding:8px 10px;border:1px solid var(--color-border);border-radius:var(--radius)}.splash{height:100vh;display:flex;align-items:center;justify-content:center;color:var(--color-text-muted)}.login-screen{height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#eef2ff,#f5f6f8)}.login-card{background:var(--color-surface);padding:40px;border-radius:16px;box-shadow:0 10px 40px #00000014;width:340px;display:flex;flex-direction:column;gap:14px}.login-card h1{margin:0;font-size:20px;text-align:center}.login-subtitle{margin:-10px 0 10px;text-align:center;color:var(--color-text-muted);font-size:13px}.login-card label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--color-text-muted)}.login-card button{margin-top:8px;padding:10px}.login-error{color:var(--color-danger);font-size:13px}.login-download-link{margin-top:4px;padding:10px;border-radius:8px;border:1px solid var(--color-border);text-align:center;font-size:13px;color:var(--color-text-muted);text-decoration:none}.login-download-link:hover{background:var(--color-surface-muted, #f5f6f8);color:var(--color-text)}.app-shell{display:flex;flex-direction:column;height:100vh}.app-header{display:flex;align-items:center;gap:24px;padding:12px 24px;background:var(--color-surface);border-bottom:1px solid var(--color-border)}.app-title{font-weight:700;font-size:15px;white-space:nowrap}.app-nav{display:flex;gap:4px}.app-nav button{border:none;border-radius:6px;padding:8px 14px}.app-nav button.active{background:var(--color-primary);color:#fff}.app-user{margin-left:auto;display:flex;align-items:center;gap:12px;font-size:13px;color:var(--color-text-muted)}.quota{display:flex;flex-direction:column;gap:2px;width:160px}.quota-bar{height:6px;background:var(--color-border);border-radius:3px;overflow:hidden}.quota-bar-fill{height:100%;background:var(--color-primary)}.quota-text{font-size:11px}.app-main{flex:1;overflow:auto;padding:24px}.explorer{position:relative;max-width:1000px;margin:0 auto}.explorer-toolbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.breadcrumb{font-size:14px}.breadcrumb-sep{margin:0 6px;color:var(--color-text-muted)}.toolbar-actions{display:flex;align-items:center;gap:8px}.explorer-subtoolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.search-box{position:relative;flex:1;max-width:360px}.search-box input{width:100%;padding-right:28px}.search-clear{position:absolute;right:4px;top:50%;transform:translateY(-50%);border:none;background:none;color:var(--color-text-muted);font-size:16px;line-height:1;padding:2px 6px}.search-clear:hover{color:var(--color-danger);background:none}.sort-controls{display:flex;align-items:center;gap:6px;font-size:13px;flex-shrink:0}.sort-controls select{font-size:13px;padding:5px 8px;border:1px solid var(--color-border);border-radius:var(--radius)}.sort-controls button{font-size:12px}.search-results .dialog-text{display:inline}.view-toggle{display:flex;border:1px solid var(--color-border);border-radius:var(--radius);overflow:hidden;margin-right:4px}.view-toggle button{border:none;border-radius:0;padding:6px 10px}.view-toggle button.active{background:var(--color-primary);color:#fff}.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:14px}.gallery-card{position:relative;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:14px 10px 10px;display:flex;flex-direction:column;align-items:center;text-align:center}.gallery-check{position:absolute;top:8px;left:8px}.gallery-icon{font-size:40px;line-height:1;margin:8px 0;cursor:pointer}.gallery-name{font-size:12px;width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;cursor:pointer}.gallery-size{font-size:11px;color:var(--color-text-muted);margin-top:2px}.gallery-actions{display:flex;gap:4px;margin-top:8px}.gallery-actions button,.gallery-actions .button-link{font-size:11px;padding:3px 6px}.drop-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#2563eb14;border:2px dashed var(--color-primary);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;font-weight:600;color:var(--color-primary);pointer-events:none;z-index:5}.explorer.drag-over{min-height:300px}.file-table{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);overflow:hidden}.file-table-header,.file-row{display:grid;grid-template-columns:32px 1fr 100px 160px 280px;align-items:center;padding:10px 16px;gap:8px}.col-check{display:flex;align-items:center}.selection-bar{display:flex;align-items:center;justify-content:space-between;background:#eef2ff;border:1px solid #c7d2fe;border-radius:var(--radius);padding:8px 16px;margin-bottom:12px;font-size:13px}.selection-actions{display:flex;gap:8px}.file-table-header{font-size:12px;color:var(--color-text-muted);border-bottom:1px solid var(--color-border);background:#fafbfc}.file-row{border-bottom:1px solid var(--color-border);font-size:14px}.file-row:last-child{border-bottom:none}.folder-name{cursor:pointer;font-weight:500}.col-actions{display:flex;gap:6px;justify-content:flex-end}.col-actions button,.button-link{font-size:12px;padding:4px 8px}.button-link{border:1px solid var(--color-border);border-radius:var(--radius);text-decoration:none;color:var(--color-text);background:var(--color-surface)}.button-link:hover{background:var(--color-bg)}.empty-hint{padding:40px;text-align:center;color:var(--color-text-muted);font-size:14px}.explorer-notice{background:#eef2ff;color:var(--color-primary);border:1px solid #c7d2fe;border-radius:var(--radius);padding:10px 14px;margin-bottom:12px;font-size:13px}.explorer-error{color:var(--color-danger);margin-bottom:12px}.upload-list{margin-bottom:16px;display:flex;flex-direction:column;gap:6px}.upload-list-header{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--color-text-muted);margin-bottom:4px}.upload-list-header-actions{display:flex;gap:6px}.upload-list-header button{font-size:11px;padding:3px 8px}.upload-cancel{border:none;background:none;color:var(--color-text-muted);font-size:16px;line-height:1;padding:0 2px}.upload-cancel:hover{color:var(--color-danger);background:none}.upload-item{display:flex;align-items:center;gap:10px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:8px 12px;font-size:13px}.upload-item button{font-size:11px;padding:3px 8px;flex-shrink:0}.upload-name{min-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.upload-bar{flex:1;height:6px;background:var(--color-border);border-radius:3px;overflow:hidden}.upload-bar-fill{height:100%;background:var(--color-primary);transition:width .2s ease}.upload-error{color:var(--color-danger)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a66;display:flex;align-items:center;justify-content:center;z-index:20}.modal{background:var(--color-surface);border-radius:12px;width:380px;max-height:80vh;overflow:auto;box-shadow:0 20px 60px #0003}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--color-border)}.modal-header h3{margin:0;font-size:16px}.modal-close{border:none;background:none;font-size:20px;line-height:1;padding:0}.modal-body{padding:20px}.modal-actions{display:flex;justify-content:flex-end;gap:8px;padding:16px 20px;border-top:1px solid var(--color-border)}.form-grid{display:flex;flex-direction:column;gap:12px}.form-grid label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--color-text-muted)}.field-hint{color:var(--color-danger);font-size:11px}.checkbox-label{flex-direction:row!important;align-items:center;gap:8px!important}.move-breadcrumb{font-size:13px;margin-bottom:10px;color:var(--color-text-muted)}.move-folder-list{max-height:240px;overflow:auto;border:1px solid var(--color-border);border-radius:var(--radius)}.move-folder-row{display:block;width:100%;text-align:left;border:none;border-bottom:1px solid var(--color-border);border-radius:0;padding:10px 12px}.move-folder-row:last-child{border-bottom:none}.admin-page{max-width:1100px;margin:0 auto}.admin-toolbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.admin-table{width:100%;border-collapse:collapse;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);overflow:hidden;font-size:13px}.admin-table th,.admin-table td{padding:10px 14px;border-bottom:1px solid var(--color-border);text-align:left}.admin-table td label{display:inline-flex;align-items:center;gap:4px;margin-right:10px;font-size:12px;color:var(--color-text-muted)}.inactive-row{opacity:.5}.badge{display:inline-block;background:var(--color-primary);color:#fff;font-size:10px;padding:2px 6px;border-radius:10px;margin-left:6px}.share-badge{display:inline-block;font-size:10px;padding:1px 6px;border-radius:10px;margin-left:6px;white-space:nowrap;vertical-align:middle}.share-badge.given{background:#dcfce7;color:#166534}.share-badge.received{background:#fef3c7;color:#92400e}.share-list{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}.share-row{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 10px;border:1px solid var(--color-border);border-radius:var(--radius);font-size:13px}.share-row button{font-size:12px;padding:3px 8px}.share-form{display:flex;flex-direction:column;gap:10px;padding-top:12px;border-top:1px solid var(--color-border)}.share-form-row{display:flex;gap:16px;align-items:center;font-size:13px}.share-form-row label{display:flex;align-items:center;gap:4px}