/* ===== 배워보소서 GEO 최적화 도구 ===== */

:root {
    --sage:#6F8F72; --sage-light:#E8F0E8; --sage-dark:#5F7F62;
    --amber:#F2A65A; --amber-light:#FFF4E8;
    --charcoal:#333; --red:#E05252; --red-light:#FFF0F0;
    --blue:#4A7FBF; --blue-light:#EBF3FB;
    --purple:#8B6FC0; --purple-light:#F3EFF8;
    --bg-primary:#FAFAF8; --bg-secondary:#F5F4F0; --bg-tertiary:#EDECEA; --bg-white:#FFF;
    --text-primary:#2D2D2D; --text-secondary:#5A5A5A; --text-muted:#8A8A8A;
    --border-light:#E5E4E0; --border-medium:#D5D4D0;
    --shadow-sm:0 1px 3px rgba(0,0,0,.04); --shadow-md:0 4px 12px rgba(0,0,0,.06);
    --radius-sm:4px; --radius-md:8px; --radius-lg:12px;
    --font-serif:'Noto Serif KR',serif; --font-sans:'Pretendard',-apple-system,BlinkMacSystemFont,sans-serif; --font-mono:'IBM Plex Mono',monospace;
    --sidebar-width:260px; --header-height:52px;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%;overflow:hidden}
body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.7;font-size:14px}

/* ===== Login ===== */
.login-screen{position:fixed;inset:0;background:var(--bg-primary);z-index:999;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:20px}
.login-box{width:340px;background:var(--bg-white);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-md)}
.login-logo{font-family:var(--font-serif);font-size:20px;font-weight:700;text-align:center;margin-bottom:4px}
.login-logo span{color:var(--sage)}
.login-sub{font-size:12px;color:var(--text-muted);text-align:center;margin-bottom:24px}
.login-field{margin-bottom:14px}
.login-label{font-size:11px;font-weight:500;color:var(--text-muted);margin-bottom:4px;display:block}
.login-input{width:100%;padding:10px 12px;border:1px solid var(--border-light);border-radius:var(--radius-sm);font-size:13px;font-family:var(--font-sans);transition:border .15s}
.login-input:focus{outline:none;border-color:var(--sage)}
.login-btn{width:100%;padding:11px;background:var(--sage);color:#fff;border:none;border-radius:var(--radius-md);font-size:14px;font-weight:600;font-family:var(--font-sans);cursor:pointer;margin-top:8px;transition:background .15s}
.login-btn:hover{background:var(--sage-dark)}
.login-error{font-size:11px;color:var(--red);margin-top:8px;display:none;text-align:center}

/* ===== Header ===== */
.header{display:flex;align-items:center;justify-content:space-between;padding:0 20px;background:var(--bg-white);border-bottom:1px solid var(--border-light);height:var(--header-height);position:fixed;top:0;left:0;right:0;z-index:100}
.header-left{display:flex;align-items:center;gap:12px}
.logo{font-family:var(--font-serif);font-size:16px;font-weight:700;letter-spacing:-.02em}
.logo span{color:var(--sage)}
.hdr-div{width:1px;height:20px;background:var(--border-light)}
.hdr-page{font-size:13px;font-weight:500;color:var(--text-secondary)}
.hdr-badge{font-size:10px;padding:2px 8px;background:var(--sage-light);color:var(--sage);border-radius:10px;font-weight:600}
.hdr-right{display:flex;align-items:center;gap:8px}
.hdr-btn{padding:5px 10px;background:transparent;border:1px solid var(--border-light);border-radius:var(--radius-sm);font-size:11px;font-weight:500;cursor:pointer;color:var(--text-secondary);font-family:var(--font-sans)}
.hdr-btn:hover{background:var(--bg-secondary)}

/* ===== Layout ===== */
.app{display:none}.app.show{display:flex;flex-direction:column;height:100vh}
.main-container{display:flex;position:fixed;top:var(--header-height);left:0;right:0;bottom:0;overflow:hidden}

/* ===== Sidebar ===== */
.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);background:var(--bg-white);border-right:1px solid var(--border-light);display:flex;flex-direction:column;flex-shrink:0;height:100%;overflow:hidden}
.sb-header{padding:10px 12px;border-bottom:1px solid var(--border-light);display:flex;align-items:center;justify-content:space-between;flex-shrink:0}
.sb-title{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted)}
.sb-actions{display:flex;gap:2px}
.sb-btn{width:26px;height:26px;display:flex;align-items:center;justify-content:center;border:1px solid var(--border-light);border-radius:var(--radius-sm);background:transparent;cursor:pointer;color:var(--text-muted);font-size:14px;transition:all .1s}
.sb-btn:hover{background:var(--bg-secondary);color:var(--text-primary);border-color:var(--border-medium)}

/* File Tree */
.sb-tree{flex:1;overflow-y:auto;padding:6px 8px}
.tree-list{list-style:none}
.tree-item{display:flex;align-items:center;gap:6px;padding:5px 8px;margin:1px 0;border-radius:var(--radius-sm);font-size:12px;color:var(--text-secondary);cursor:pointer;transition:all .1s;user-select:none;position:relative;overflow:hidden}
.tree-item:hover{background:var(--bg-secondary);color:var(--text-primary)}
.tree-item.active{background:var(--sage-light);color:var(--sage);font-weight:600}
.tree-battery{display:flex;gap:1px;margin-left:auto;flex-shrink:0;z-index:1;align-items:center}
.tree-battery-cell{width:4px;height:10px;border-radius:1px;background:var(--border-light);transition:background .3s}
.tree-battery-cell.filled{background:var(--sage)}
.tree-battery-cell.active{background:var(--amber);animation:pulse .8s infinite alternate}
@keyframes pulse{from{opacity:.5}to{opacity:1}}
@keyframes spin{to{transform:rotate(360deg)}}
.spinner-inline{display:inline-block;width:12px;height:12px;border:2px solid rgba(0,0,0,.15);border-top-color:currentColor;border-radius:50%;animation:spin .6s linear infinite;vertical-align:middle;margin-right:4px}
.btn-confirm .spinner-inline{border-color:rgba(255,255,255,.3);border-top-color:#fff}
.tree-item>*{z-index:1}
.tree-item.folder{font-weight:500;color:var(--text-primary)}
.tree-icon{width:14px;height:14px;flex-shrink:0;opacity:.6}
.tree-item.active .tree-icon{opacity:1}
.tree-name{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.tree-toggle{width:14px;font-size:9px;color:var(--text-muted);transition:transform .15s;flex-shrink:0;text-align:center}
.tree-item.collapsed .tree-toggle{transform:rotate(-90deg)}
.tree-children{list-style:none;padding-left:16px;margin-left:6px;border-left:1px solid var(--border-light)}
.tree-children.collapsed{display:none}
.tree-count{font-size:10px;color:var(--text-muted);margin-left:auto}

/* Drag indicators */
.tree-item.drag-over{background:var(--sage-light);border:1px dashed var(--sage)}
.tree-drop-line{height:2px;background:var(--sage);border-radius:1px;margin:0 8px;transition:opacity .1s;opacity:0}
.tree-drop-line.visible{opacity:1}
.tree-item.dragging{opacity:.4}

/* Context menu */
.ctx-menu{position:fixed;background:var(--bg-white);border:1px solid var(--border-light);border-radius:var(--radius-md);box-shadow:var(--shadow-md);padding:4px;z-index:200;min-width:140px;display:none}
.ctx-item{padding:6px 12px;font-size:12px;color:var(--text-secondary);cursor:pointer;border-radius:var(--radius-sm);transition:all .1s}
.ctx-item:hover{background:var(--bg-secondary);color:var(--text-primary)}
.ctx-item.danger{color:var(--red)}
.ctx-item.danger:hover{background:var(--red-light)}
.ctx-sep{height:1px;background:var(--border-light);margin:4px 0}

/* Sidebar footer */
.sb-footer{padding:8px 12px;border-top:1px solid var(--border-light);display:flex;gap:4px;flex-shrink:0}
.sb-footer-btn{flex:1;padding:6px;background:var(--bg-secondary);border:1px solid var(--border-light);border-radius:var(--radius-sm);font-size:11px;color:var(--text-secondary);cursor:pointer;text-align:center;font-family:var(--font-sans);transition:all .1s}
.sb-footer-btn:hover{background:var(--sage-light);color:var(--sage);border-color:var(--sage)}

/* ===== Content ===== */
.content-area{flex:1;display:flex;flex-direction:column;overflow:hidden;position:relative;min-width:0}

/* Step: Upload (centered) */
.step-upload{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;overflow-y:auto}
.upload-zone{width:min(400px,90%);border:2px dashed var(--border-medium);border-radius:var(--radius-lg);padding:40px;display:flex;flex-direction:column;align-items:center;gap:12px;cursor:pointer;transition:all .15s;background:var(--bg-white)}
.upload-zone:hover,.upload-zone.dragover{border-color:var(--sage);background:var(--sage-light)}
.upload-zone.has-file{border-style:solid;border-color:var(--sage);background:var(--sage-light)}
.upload-icon{color:var(--text-muted)}.upload-zone.has-file .upload-icon{color:var(--sage)}
.upload-text{font-size:14px;color:var(--text-secondary);text-align:center}
.upload-zone.has-file .upload-text{color:var(--sage);font-weight:600}
.upload-sub{font-size:11px;color:var(--text-muted)}
.btn-start{padding:12px 36px;background:var(--sage);color:#fff;border:none;border-radius:var(--radius-md);font-size:14px;font-weight:600;font-family:var(--font-sans);cursor:pointer;transition:all .15s;display:none;align-items:center;gap:8px}
.btn-start:hover{background:var(--sage-dark)}.btn-start.show{display:inline-flex}

/* Step: Confirm */
.step-confirm{display:none;flex:1;flex-direction:column;align-items:center;justify-content:center;gap:16px;overflow-y:auto;padding:20px}
.confirm-card{width:min(480px,100%);background:var(--bg-white);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-md);flex-shrink:0}
.confirm-title{font-size:15px;font-weight:700;margin-bottom:4px}
.confirm-sub{font-size:12px;color:var(--text-muted);margin-bottom:20px}
.confirm-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px}
.confirm-field{display:flex;flex-direction:column;gap:3px}
.confirm-label{font-size:11px;font-weight:500;color:var(--text-muted)}
.confirm-input{padding:8px 10px;border:1px solid var(--border-light);border-radius:var(--radius-sm);font-size:13px;font-family:var(--font-sans);color:var(--text-primary);background:var(--bg-secondary);transition:all .15s}
.confirm-input:focus{outline:none;border-color:var(--sage);background:var(--bg-white)}
.confirm-detected{font-size:10px;color:var(--sage);font-weight:500}
.confirm-actions{display:flex;gap:8px;justify-content:flex-end}
.btn-confirm{padding:10px 24px;background:var(--sage);color:#fff;border:none;border-radius:var(--radius-md);font-size:13px;font-weight:600;font-family:var(--font-sans);cursor:pointer}
.btn-confirm:hover{background:var(--sage-dark)}
.btn-confirm:disabled{opacity:.7;cursor:not-allowed}
.btn-back{padding:10px 20px;background:var(--bg-secondary);color:var(--text-secondary);border:1px solid var(--border-light);border-radius:var(--radius-md);font-size:13px;font-weight:500;font-family:var(--font-sans);cursor:pointer}
.btn-back:hover{background:var(--bg-tertiary)}

/* Step: Results */
.step-results{display:none;flex:1;flex-direction:column;overflow:hidden;min-width:0}
.results-toolbar{display:flex;align-items:center;justify-content:space-between;padding:8px 20px;background:var(--bg-white);border-bottom:1px solid var(--border-light);flex-shrink:0}
.results-toolbar-left{display:flex;align-items:center;gap:10px}
.results-file-name{font-size:12px;font-weight:600;color:var(--text-primary)}
.results-file-meta{font-size:11px;color:var(--text-muted)}
.tab-bar{display:flex;align-items:flex-end;background:var(--bg-secondary);border-bottom:1px solid var(--border-light);padding:0 16px;height:42px;gap:2px;flex-shrink:0}
.tab-item{display:flex;align-items:center;gap:6px;padding:0 16px;height:34px;background:transparent;color:var(--text-muted);font-size:12px;font-weight:500;border:none;border-radius:var(--radius-sm) var(--radius-sm) 0 0;cursor:pointer;transition:all .1s;font-family:var(--font-sans);white-space:nowrap}
.tab-item:hover{background:rgba(255,255,255,.5);color:var(--text-secondary)}
.tab-item.active{background:var(--bg-white);color:var(--sage);font-weight:600;border:1px solid var(--border-light);border-bottom:1px solid var(--bg-white);margin-bottom:-1px}
.tab-panels{flex:1;overflow-y:auto;background:var(--bg-white)}
.tab-panel{display:none;padding:20px 24px}
.tab-panel.active{display:block}

/* Shared */
.section{margin-bottom:24px}.section:last-child{margin-bottom:0}
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;padding-bottom:8px;border-bottom:1px solid var(--border-light)}
.section-title{font-size:12px;font-weight:600;color:var(--text-primary)}
.section-actions{display:flex;gap:4px}
.btn{display:inline-flex;align-items:center;gap:4px;padding:5px 10px;border-radius:var(--radius-sm);font-size:11px;font-weight:500;cursor:pointer;transition:all .1s;border:1px solid var(--border-light);background:var(--bg-white);color:var(--text-secondary);font-family:var(--font-sans)}
.btn:hover{background:var(--bg-secondary);color:var(--text-primary);border-color:var(--border-medium)}
.btn-copy:hover{border-color:var(--sage);color:var(--sage)}
.btn-generate{background:var(--amber-light);color:#C07830;border-color:#E8C090}
.btn-generate:hover{background:#FFF0D8;border-color:var(--amber)}
.btn-generate:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}
.btn-download{background:var(--sage);color:#fff;border-color:var(--sage)}
.btn-download:hover{background:var(--sage-dark)}
.content-block{background:var(--bg-secondary);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:14px;font-size:13px;line-height:1.7;white-space:pre-wrap;max-height:400px;overflow-y:auto}
.content-block.mono{font-family:var(--font-mono);font-size:12px;line-height:1.5}

/* Option Cards */
.option-list{display:flex;flex-direction:column;gap:6px}
.option-card{display:flex;align-items:stretch;border:1px solid var(--border-light);border-radius:var(--radius-md);overflow:hidden;transition:all .1s;background:var(--bg-white)}
.option-card:hover{border-color:var(--border-medium);box-shadow:var(--shadow-sm)}
.option-card.user-submitted{border-left:3px solid var(--amber)}
.option-rank{width:40px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;padding:8px 0;background:var(--bg-secondary);border-right:1px solid var(--border-light);flex-shrink:0}
.rank-num{font-size:14px;font-weight:800;color:var(--text-primary)}
.rank-score{font-size:9px;font-weight:600;color:var(--text-muted)}
.option-body{flex:1;padding:10px 14px;min-width:0}
.option-main{font-size:14px;font-weight:600;color:var(--text-primary);margin-bottom:2px}
.option-meta{font-size:11px;color:var(--text-muted);display:flex;gap:6px;flex-wrap:wrap}
.option-meta-tag{padding:1px 6px;background:var(--bg-secondary);border-radius:3px;font-size:10px}
.option-meta-tag.user-tag{background:var(--amber-light);color:#C07830;font-weight:600}
.option-suggestion{font-size:11px;color:var(--text-muted);margin-top:4px;padding:4px 8px;background:var(--bg-secondary);border-radius:var(--radius-sm);line-height:1.5;font-style:italic}
.option-actions{display:flex;align-items:center;gap:2px;padding:8px;flex-shrink:0}
.option-btn{width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);border:none;background:transparent;color:var(--text-muted);cursor:pointer;transition:all .1s;font-size:14px}
.option-btn:hover{background:var(--bg-secondary);color:var(--text-primary)}
.option-btn.save-btn:hover,.option-btn.save-btn.saved{color:var(--sage)}
.grade{font-size:10px;font-weight:800;padding:1px 5px;border-radius:3px}
.grade-S{background:var(--purple-light);color:var(--purple)}.grade-A{background:var(--blue-light);color:var(--blue)}.grade-B{background:var(--sage-light);color:var(--sage)}.grade-C{background:var(--amber-light);color:var(--amber)}.grade-D{background:var(--red-light);color:var(--red)}

/* User Input Area (제목/썸네일 직접 입력) */
.user-input-area{display:flex;gap:6px;margin-top:10px;align-items:center}
.user-input-area input{flex:1;padding:8px 12px;border:1px solid var(--border-light);border-radius:var(--radius-sm);font-size:13px;font-family:var(--font-sans);color:var(--text-primary);background:var(--bg-white);transition:border .15s}
.user-input-area input:focus{outline:none;border-color:var(--sage)}
.user-input-area input::placeholder{color:var(--text-muted);font-size:12px}
.btn-score{background:var(--sage);color:#fff;border-color:var(--sage);padding:8px 16px;font-weight:600}
.btn-score:hover{background:var(--sage-dark)}
.btn-score:disabled{opacity:.5;cursor:not-allowed}
.user-input-hint{font-size:10px;color:var(--text-muted);margin-top:4px}
.user-char-count{font-size:10px;color:var(--text-muted);min-width:30px;text-align:right}

/* Modal */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.3);z-index:300;display:none;align-items:center;justify-content:center}
.modal-overlay.show{display:flex}
.modal{background:var(--bg-white);border-radius:var(--radius-lg);padding:24px;width:500px;max-height:80vh;overflow-y:auto;box-shadow:0 12px 40px rgba(0,0,0,.12)}
.modal-title{font-size:15px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;justify-content:space-between}
.modal-close{width:28px;height:28px;display:flex;align-items:center;justify-content:center;border:none;background:var(--bg-secondary);border-radius:50%;cursor:pointer;color:var(--text-muted);font-size:16px}
.modal-close:hover{background:var(--bg-tertiary);color:var(--text-primary)}
.editable-list{list-style:none}
.editable-item{display:flex;align-items:center;gap:8px;padding:6px 8px;margin-bottom:4px;border-radius:var(--radius-sm);border:1px solid var(--border-light)}
.editable-item input{flex:1;border:none;background:transparent;font-size:13px;font-family:var(--font-sans);color:var(--text-primary);outline:none}
.editable-del{width:24px;height:24px;display:flex;align-items:center;justify-content:center;border:none;background:transparent;color:var(--text-muted);cursor:pointer;border-radius:var(--radius-sm);font-size:14px}
.editable-del:hover{background:var(--red-light);color:var(--red)}
.editable-add{padding:6px 12px;background:var(--bg-secondary);border:1px dashed var(--border-medium);border-radius:var(--radius-sm);font-size:12px;color:var(--text-muted);cursor:pointer;text-align:center;margin-top:4px;font-family:var(--font-sans);width:100%}
.editable-add:hover{border-color:var(--sage);color:var(--sage);background:var(--sage-light)}

/* Progress bar in results toolbar */
.results-progress{height:3px;background:var(--bg-tertiary);position:relative;flex-shrink:0;overflow:hidden}
.results-progress-fill{height:100%;background:linear-gradient(90deg,var(--sage),var(--sage-dark));border-radius:0 2px 2px 0;transition:width .4s ease;width:0}
.results-progress-fill.active{animation:progress-glow 1.5s ease-in-out infinite}
@keyframes progress-glow{0%,100%{opacity:1}50%{opacity:.7}}
.results-progress.hidden{display:none}

/* Step indicator */
.step-indicator{display:flex;align-items:center;gap:12px;padding:6px 20px;background:var(--bg-secondary);border-bottom:1px solid var(--border-light);flex-shrink:0;font-size:11px}
.step-indicator.hidden{display:none}
.step-dot{display:flex;align-items:center;gap:4px;color:var(--text-muted)}
.step-dot .dot{width:8px;height:8px;border-radius:50%;background:var(--border-medium);flex-shrink:0}
.step-dot.done .dot{background:var(--sage)}
.step-dot.active .dot{background:var(--amber);animation:pulse .8s infinite alternate}
.step-dot.active{color:var(--text-primary);font-weight:600}
.step-dot.done{color:var(--sage)}
.step-connector{width:20px;height:1px;background:var(--border-medium)}
.step-connector.done{background:var(--sage)}

/* Tab badge */
.tab-badge{width:6px;height:6px;border-radius:50%;flex-shrink:0}
.tab-badge.done{background:var(--sage)}
.tab-badge.running{background:var(--amber);animation:pulse .8s infinite alternate}
.tab-badge.pending{background:var(--border-medium)}

/* Proofread highlights */
.proofread-legend{display:flex;gap:16px;padding:6px 0 10px;font-size:11px;color:var(--text-muted)}
.legend-item{display:flex;align-items:center;gap:4px}
.pr-fix-sample{background:#D4EDDA;color:#155724;padding:1px 4px;border-radius:3px;font-size:10px;font-weight:600}
.pr-check-sample{background:#FFF3CD;color:#856404;padding:1px 4px;border-radius:3px;font-size:10px;font-weight:600}
.pr-fix{background:#D4EDDA;color:#155724;padding:1px 3px;border-radius:3px;cursor:pointer;position:relative;border-bottom:2px solid #28A745}
.pr-fix:hover{background:#C3E6CB}
.pr-fix .pr-orig{display:none;position:absolute;bottom:calc(100% + 4px);left:0;background:#333;color:#fff;padding:4px 8px;border-radius:4px;font-size:11px;white-space:nowrap;z-index:10}
.pr-fix:hover .pr-orig{display:block}
.pr-check{background:#FFF3CD;color:#856404;padding:1px 3px;border-radius:3px;border-bottom:2px dashed #FFC107}

/* Streaming cursor */
.streaming-cursor::after{content:'\u2588';animation:blink .5s step-end infinite;color:var(--sage);font-weight:700}
@keyframes blink{50%{opacity:0}}
.content-block.streaming{border-color:var(--sage);background:var(--bg-white)}

/* YouTube sections */
.yt-section{margin-bottom:16px}
.yt-section-title{font-size:12px;font-weight:600;color:var(--sage);margin-bottom:6px;display:flex;align-items:center;justify-content:space-between}

/* Toast */
.toast{position:fixed;bottom:24px;right:24px;padding:10px 16px;background:var(--charcoal);color:#fff;border-radius:var(--radius-md);font-size:12px;font-weight:500;z-index:200;opacity:0;transform:translateY(8px);transition:all .2s;pointer-events:none}
.toast.show{opacity:1;transform:translateY(0)}

/* Scrollbar */
::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-medium);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}