@import "https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap";:root{color:#18221f;--bg:#f4f7f3;--surface:#fff;--surface-muted:#edf3ee;--text:#18221f;--muted:#6b7972;--border:#dce6de;--accent:#236b51;--accent-strong:#174b39;--accent-soft:#dcefe5;--danger:#b64d42;--shadow:0 18px 50px #23463314;background:#f4f7f3;font-family:DM Sans,Avenir Next,sans-serif}*{box-sizing:border-box}html,body,#root{min-height:100%}body{background:var(--bg);color:var(--text);margin:0}button,input,select,textarea{font:inherit}.app{background:var(--bg);min-height:100vh;transition:background .25s,color .25s;display:flex}.app.dark{--bg:#121917;--surface:#1b2420;--surface-muted:#23302a;--text:#edf5ef;--muted:#9aaca0;--border:#33443b;--accent:#82d0a7;--accent-strong:#b2ebc9;--accent-soft:#244a39;--danger:#f28c7f;--shadow:0 18px 50px #0003}.sidebar{background:var(--surface);border-right:1px solid var(--border);flex-direction:column;width:260px;min-height:100vh;padding:28px 16px 20px;display:flex}.logo{align-items:center;gap:11px;padding:0 12px 34px;display:flex}.logo-icon{background:var(--accent);color:#fff;border-radius:10px;place-items:center;width:34px;height:34px;font-size:18px;display:grid}.logo h1{margin:0;font:700 19px Space Grotesk,sans-serif}.tools-nav{flex-direction:column;gap:5px;display:flex}.nav-item{width:100%;color:var(--muted);border-radius:9px;align-items:center;gap:12px;padding:12px;font-size:14px;text-decoration:none;transition:background .2s,color .2s,transform .2s;display:flex}.nav-item:hover{color:var(--text);background:var(--surface-muted);transform:translate(2px)}.nav-item.active{color:#fff;background:var(--accent);box-shadow:0 8px 18px #236b5129}.nav-icon{text-align:center;width:22px;font-size:16px}.nav-name{white-space:nowrap}.sidebar-footer{color:var(--muted);margin-top:auto;padding:18px 10px 0;font-size:12px}.sidebar-footer p{margin:14px 0 0}.theme-toggle{border:1px solid var(--border);width:100%;color:var(--text);cursor:pointer;text-align:left;background:0 0;border-radius:8px;align-items:center;gap:9px;padding:9px 10px;font-size:12px;display:flex}.theme-toggle:hover{background:var(--surface-muted)}.main{flex:1;min-width:0;padding:38px clamp(20px,4vw,60px)}.tool-page,.qr-page{width:min(1120px,100%);margin:0 auto;animation:.35s both rise}@keyframes rise{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.tool-header,.page-header{justify-content:space-between;align-items:flex-start;gap:24px;margin-bottom:28px;display:flex}.eyebrow{color:var(--accent);letter-spacing:.12em;margin:0 0 8px;font-size:11px;font-weight:700}h1,h2,h3{letter-spacing:0;font-family:Space Grotesk,sans-serif}h1,h2,h3,p{margin-top:0}.tool-header h1,.page-header h2{margin-bottom:8px;font-size:clamp(28px,4vw,40px)}.tool-header p:not(.eyebrow),.page-header p{max-width:670px;color:var(--muted);margin-bottom:0;font-size:15px;line-height:1.6}.tool-card,.converter-card,.qr-form-card,.qr-preview-card,.stat-card{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:12px}.tool-card,.converter-card,.qr-form-card,.qr-preview-card{padding:clamp(20px,3vw,30px)}.tool-card h2{margin-bottom:0;font-size:21px}.card-header,.preview-header,.converter-title{justify-content:space-between;align-items:center;gap:16px;display:flex}.card-header span{color:var(--muted);font-size:13px}.divider{background:var(--border);height:1px;margin:21px 0}.primary-button,.generate-button,.resize-button{background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:8px;padding:12px 17px;font-weight:700;transition:transform .2s,background .2s,opacity .2s}.primary-button:hover,.generate-button:hover,.resize-button:hover{background:var(--accent-strong);transform:translateY(-1px)}.primary-button:disabled,.secondary-button:disabled{opacity:.48;cursor:not-allowed;transform:none}.secondary-button,.download-button,.choose-button{border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;border-radius:8px;padding:10px 15px;font-weight:600}.secondary-button:hover,.download-button:hover{background:var(--surface-muted)}.choose-button{color:var(--accent);border-color:var(--accent);white-space:nowrap}.full-width{width:100%;margin-top:20px}.button-row{gap:10px;margin-top:20px;display:flex}.button-row .primary-button{flex:1}.upload-box{border:2px dashed var(--border);text-align:center;cursor:pointer;border-radius:10px;flex-direction:column;justify-content:center;align-items:center;min-height:360px;transition:border .2s,background .2s;display:flex}.upload-box:hover{border-color:var(--accent);background:var(--surface-muted)}.upload-icon{background:var(--accent-soft);width:58px;height:58px;color:var(--accent);border-radius:16px;place-items:center;margin-bottom:16px;font:700 14px Space Grotesk,sans-serif;display:grid}.upload-box h3{margin-bottom:8px;font-size:19px}.upload-box p{max-width:340px;color:var(--muted);margin-bottom:20px;font-size:13px}.file-info,.compression-result{background:var(--surface-muted);border-radius:9px;padding:16px}.file-info div,.compression-result div{justify-content:space-between;gap:20px;margin-bottom:11px;display:flex}.file-info div:last-child,.compression-result div:last-child{margin-bottom:0}.file-info span,.compression-result span{color:var(--muted);font-size:13px}.file-info strong,.compression-result strong{max-width:65%;color:var(--text);text-overflow:ellipsis;white-space:nowrap;font-size:13px;overflow:hidden}.error-message{color:var(--danger);margin:16px 0 0;font-size:13px}.privacy-box,.privacy-note{border:1px solid var(--border);background:var(--surface);color:var(--muted);border-radius:10px;align-items:center;gap:10px;margin-top:20px;padding:15px 17px;font-size:12px;display:flex}.privacy-box strong,.privacy-note strong{color:var(--text);white-space:nowrap}.compressor-grid,.resizer-grid,.converter-workspace,.cleaner-grid,.qr-workspace{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;display:grid}.preview-card{flex-direction:column;display:flex}.preview-container{background:var(--surface-muted);border-radius:9px;justify-content:center;align-items:center;min-height:400px;display:flex;overflow:hidden}.empty-preview{color:var(--muted);text-align:center}.empty-preview div{margin-bottom:12px;font-size:42px}.empty-preview p{margin-bottom:5px;font-size:14px}.image-preview{flex-direction:column;justify-content:center;align-items:center;width:100%;min-height:400px;padding:22px;display:flex}.image-preview img,.preview-image{object-fit:contain;border-radius:6px;max-width:100%;max-height:350px}.image-preview span,.preview-size{color:var(--muted);margin-top:12px;font-size:13px}.download-button{width:100%;margin-top:14px}.success-badge,.resize-status{background:var(--accent-soft);color:var(--accent);border-radius:20px;padding:5px 9px;font-size:11px;font-weight:700}.setting-group{margin-top:23px}.setting-group label,.form-group label{color:var(--text);margin-bottom:8px;font-size:13px;font-weight:700;display:block}.setting-title,.range-labels{justify-content:space-between;gap:12px;display:flex}.setting-title strong{color:var(--accent)}.range-labels{color:var(--muted);margin-top:6px;font-size:12px}.setting-group input[type=range]{width:100%;accent-color:var(--accent)}.setting-group select,.form-group input,.form-group select,.form-group textarea,.word-textarea,.input-wrapper input{border:1px solid var(--border);background:var(--surface);width:100%;color:var(--text);border-radius:8px;outline:none;padding:11px 12px}textarea{resize:vertical}input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.compression-result{margin-top:18px}.compression-result strong{color:var(--accent)}.dimension-row{grid-template-columns:1fr auto 1fr;align-items:end;gap:10px;margin-top:22px;display:grid}.dimension-input label{margin-bottom:8px;font-size:13px;font-weight:700;display:block}.input-wrapper{position:relative}.input-wrapper input{padding-right:36px}.input-wrapper span{color:var(--muted);font-size:12px;position:absolute;top:50%;right:11px;transform:translateY(-50%)}.multiply{color:var(--muted);padding-bottom:11px;font-weight:700}.ratio-checkbox,.toggle-row{color:var(--muted);cursor:pointer;align-items:center;gap:9px;margin-top:17px;font-size:13px;display:flex}.ratio-checkbox input,.toggle-row input{accent-color:var(--accent)}.preset-section{margin-top:23px}.preset-section h3{margin-bottom:10px;font-size:14px}.preset-grid{grid-template-columns:1fr 1fr;gap:8px;display:grid}.preset-grid button{border:1px solid var(--border);background:var(--surface);color:var(--muted);cursor:pointer;border-radius:7px;padding:9px;font-size:12px}.preset-grid button:hover{border-color:var(--accent);color:var(--accent)}.resize-button{width:100%;margin-top:24px}.stats-grid{grid-template-columns:repeat(3,1fr);gap:13px;margin-bottom:22px;display:grid}.stat-card{padding:18px}.stat-card span{color:var(--muted);margin-bottom:8px;font-size:13px;display:block}.stat-card strong{font:700 26px Space Grotesk,sans-serif}.word-actions{gap:9px;display:flex}.word-textarea{min-height:390px;margin-top:18px;line-height:1.7}.file-drop-zone{border:1px dashed var(--border);background:var(--surface-muted);color:var(--text);text-align:center;cursor:pointer;border-radius:9px;flex-direction:column;align-items:center;gap:7px;margin-top:18px;padding:18px;display:flex}.file-drop-zone:hover{border-color:var(--accent)}.file-drop-zone span{color:var(--muted);font-size:12px}.editor-footer{color:var(--muted);gap:20px;margin-top:10px;font-size:12px;display:flex}.cleaner-grid .tool-card{min-height:450px}.cleaner-settings{flex-direction:column;display:flex}.muted-text{color:var(--muted);font-size:13px;line-height:1.5}.cleaner-settings .toggle-row{margin-top:20px}.cleaner-preview{border-top:1px solid var(--border);color:var(--muted);justify-content:space-between;gap:15px;margin-top:24px;padding:14px;font-size:13px;display:flex}.cleaner-preview strong{color:var(--text)}.converter-card h2{margin-bottom:22px;font-size:21px}.converter-grid{grid-template-columns:repeat(2,1fr);gap:13px;display:grid}.converter-option{border:1px solid var(--border);background:var(--surface);text-align:left;cursor:pointer;border-radius:9px;padding:20px;transition:border .2s,transform .2s,background .2s}.converter-option:hover{border-color:var(--accent);background:var(--surface-muted);transform:translateY(-2px)}.converter-option strong,.converter-option span{display:block}.converter-option strong{margin-bottom:7px;font-family:Space Grotesk,sans-serif}.converter-option span,.converter-title p{color:var(--muted);font-size:13px}.converter-title h2{margin-bottom:5px}.file-preview-icon{font-size:54px}.pdf-list-header{justify-content:space-between;align-items:center;gap:15px;display:flex}.pdf-list-header h2{margin-bottom:5px}.pdf-list-header span{color:var(--muted);font-size:13px}.pdf-list{flex-direction:column;gap:9px;margin-top:18px;display:flex}.pdf-item{border:1px solid var(--border);background:var(--surface-muted);border-radius:9px;align-items:center;gap:12px;padding:12px;display:flex}.pdf-icon{background:var(--accent-soft);width:38px;height:38px;color:var(--accent);border-radius:7px;place-items:center;font-size:10px;font-weight:700;display:grid}.pdf-info{flex-direction:column;flex:1;gap:4px;min-width:0;display:flex}.pdf-info strong{text-overflow:ellipsis;white-space:nowrap;font-size:13px;overflow:hidden}.pdf-info span{color:var(--muted);font-size:11px}.pdf-controls{gap:4px;display:flex}.pdf-controls button{border:1px solid var(--border);background:var(--surface);width:28px;height:28px;color:var(--text);cursor:pointer;border-radius:6px}.pdf-controls button:hover{border-color:var(--accent);color:var(--accent)}.pdf-controls button:disabled{opacity:.35;cursor:not-allowed}.qr-type-grid{grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:20px;display:grid}.qr-type-card{border:1px solid var(--border);background:var(--surface);text-align:left;cursor:pointer;border-radius:9px;flex-direction:column;gap:5px;padding:15px;display:flex}.qr-type-card:hover,.qr-type-card.selected{border-color:var(--accent);background:var(--accent-soft)}.qr-type-icon{font-size:22px}.qr-type-name{font-size:14px;font-weight:700}.qr-type-description{color:var(--muted);font-size:11px}.card-title{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding-bottom:15px;display:flex}.card-title h3{margin:0;font-size:17px}.card-title span{background:var(--surface-muted);color:var(--muted);border-radius:20px;padding:4px 8px;font-size:11px}.qr-form{flex-direction:column;gap:14px;margin-top:20px;display:flex}.form-note{background:var(--surface-muted);color:var(--muted);border-radius:8px;padding:10px;font-size:12px;line-height:1.5}.generate-button{width:100%;margin-top:20px}.qr-preview{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:360px;display:flex}.qr-canvas-wrapper{background:#fff;border-radius:9px;padding:14px}.qr-canvas-wrapper canvas{max-width:100%;display:block}.qr-success{color:var(--accent);margin:13px 0 0;font-size:13px}.toolbox-page{width:min(1120px,100%);margin:0 auto}.toolbox-tabs{gap:8px;margin-bottom:28px;padding-bottom:4px;display:flex;overflow-x:auto}.toolbox-tabs button{border:1px solid var(--border);background:var(--surface);color:var(--muted);cursor:pointer;border-radius:8px;flex:none;align-items:center;gap:8px;padding:11px 14px;font-weight:700;display:flex}.toolbox-tabs button:hover,.toolbox-tabs button.active{border-color:var(--accent);background:var(--accent);color:#fff}.tool-card-inner{border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow);border-radius:12px;padding:clamp(20px,3vw,30px)}.tool-grid-2{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:18px 0;display:grid}.tool-button-grid{flex-wrap:wrap;gap:10px;margin-top:18px;display:flex}.tool-button-grid>*{flex:150px}.tool-status{background:var(--surface-muted);color:var(--accent);border-radius:8px;margin:18px 0 0;padding:12px;font-size:13px}.segmented{flex-wrap:wrap;gap:7px;margin:18px 0;display:flex}.segmented button{border:1px solid var(--border);background:var(--surface);color:var(--muted);cursor:pointer;border-radius:7px;padding:9px 12px}.segmented button.selected{border-color:var(--accent);background:var(--accent-soft);color:var(--accent);font-weight:700}.form-group{margin-bottom:14px;display:block}.form-group>span{color:var(--text);margin-bottom:8px;font-size:13px;font-weight:700;display:block}.form-group input[type=file]{padding:9px}.word-textarea.compact{min-height:150px;margin-top:0}.result-code{overflow-wrap:anywhere;border:1px dashed var(--accent);background:var(--accent-soft);color:var(--text);border-radius:8px;margin-top:14px;padding:14px;font-family:monospace;font-size:14px}.strength{margin:8px 0;font-size:13px;font-weight:700}.strength-mạnh{color:var(--accent)}.strength-trung bình{color:#b4771b}.strength-yếu{color:var(--danger)}.compare-box{border-top:1px solid var(--border);margin-top:22px;padding-top:18px}@media (width<=900px){.sidebar{width:220px}.compressor-grid,.resizer-grid,.converter-workspace,.cleaner-grid,.qr-workspace{grid-template-columns:1fr}.qr-type-grid{grid-template-columns:repeat(2,1fr)}}@media (width<=620px){.app{display:block}.sidebar{border-right:0;border-bottom:1px solid var(--border);width:100%;min-height:auto;padding:15px}.logo{padding:0 5px 15px}.tools-nav{grid-template-columns:repeat(2,1fr);display:grid}.nav-item{padding:9px;font-size:12px}.sidebar-footer{justify-content:space-between;align-items:center;gap:12px;padding:13px 5px 0;display:flex}.sidebar-footer p{margin:0}.theme-toggle{width:auto}.main{padding:25px 15px}.tool-header,.page-header{flex-direction:column;gap:15px;margin-bottom:20px}.tool-header h1,.page-header h2{font-size:30px}.stats-grid{grid-template-columns:repeat(2,1fr)}.converter-grid{grid-template-columns:1fr}.tool-card,.converter-card,.qr-form-card,.qr-preview-card,.tool-card-inner{padding:18px}.upload-box,.preview-container,.image-preview{min-height:300px}.dimension-row{grid-template-columns:1fr 14px 1fr}.privacy-box,.privacy-note,.converter-title{flex-direction:column;align-items:flex-start}.word-actions{width:100%}.word-actions button{flex:1}.tool-grid-2{grid-template-columns:1fr}.toolbox-tabs{margin-right:-5px}}