.tool-app *{box-sizing:border-box}
.tool-app button,.tool-app input,.tool-app select,.tool-app textarea{font:inherit}
.tool-app button{-webkit-tap-highlight-color:transparent}
.hero{max-width:1240px;margin:0 auto;padding:24px 16px 10px}
.hero h1{margin:0 0 8px;font-size:clamp(2rem,3vw,3rem);line-height:1.04;letter-spacing:-.03em;background:linear-gradient(90deg,var(--accent1),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero p{margin:0;max-width:920px;color:var(--muted);line-height:1.78}
.top-row{max-width:1240px;margin:0 auto 18px;padding:0 16px;display:grid;grid-template-columns:1.02fr .98fr;gap:16px}
.info-card,.upload-card,.toolbar-card,.summary-card,.result-shell,.tips-card,.preview-card,.analysis-card{border:1px solid var(--border);background:var(--surface);border-radius:26px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow)}
.info-card{padding:24px;display:flex;flex-direction:column;justify-content:center}
.info-title{margin:0 0 10px;font-size:1.22rem;color:var(--text)}
.info-text{margin:0;color:var(--muted);line-height:1.78}
.info-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.info-tags span{padding:9px 13px;border-radius:999px;border:1px solid var(--border);background:var(--surface-soft);color:var(--text);font-size:.8rem;font-weight:700}
.upload-card{padding:18px}
.upload-inner{min-height:250px;border:1.6px dashed rgba(99,102,241,.34);border-radius:22px;display:flex;align-items:center;justify-content:center;text-align:center;padding:28px 18px;flex-direction:column;gap:10px;background:var(--upload-bg);transition:border-color .25s ease, transform .18s ease, box-shadow .25s ease}
.upload-inner.dragover{border-color:rgba(99,102,241,.72);box-shadow:0 0 0 4px rgba(99,102,241,.11), 0 24px 50px rgba(37,99,235,.10);transform:translateY(-2px)}
.upload-icon{width:76px;height:76px;display:grid;place-items:center;border-radius:24px;font-size:2rem;border:1px solid var(--border);background:linear-gradient(135deg, rgba(37,99,235,.16), rgba(124,58,237,.16));box-shadow:0 16px 30px rgba(37,99,235,.12)}
.upload-inner h2{margin:4px 0 0;font-size:1.34rem;color:var(--text)}
.upload-inner p{margin:0;color:var(--muted)}
.upload-note{display:inline-flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:6px;color:var(--muted);font-size:.82rem}
.toolbar-wrap{max-width:1240px;margin:0 auto 18px;padding:0 16px}
.toolbar-card{padding:18px;position:sticky;top:72px;z-index:30}
.toolbar-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.toolbar-title{display:flex;flex-direction:column;gap:4px}
.toolbar-title h3{margin:0;color:var(--text);font-size:1.08rem}
.toolbar-title p{margin:0;color:var(--muted);font-size:.82rem}
.inline-status{display:inline-flex;align-items:center;gap:8px;padding:9px 12px;border-radius:999px;border:1px solid var(--border);background:var(--surface-soft);color:var(--text);font-size:.78rem;font-weight:700}
.inline-status.success{background:var(--success-soft);border-color:rgba(22,163,74,.20)}
.inline-status.warning{background:var(--warning-soft);border-color:rgba(217,119,6,.20)}
.inline-status.danger{background:var(--danger-soft);border-color:rgba(220,38,38,.20)}
.toolbar-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px}
.toolbar-field{display:flex;flex-direction:column;gap:6px}
.toolbar-field label{font-size:.77rem;font-weight:800;color:var(--text)}
.toolbar-field input,.toolbar-field select{width:100%;min-height:46px;border-radius:15px;border:1px solid var(--input-border);background:var(--input-bg);color:var(--input-text);padding:11px 13px;font-size:.9rem;outline:none;transition:border-color .18s ease, box-shadow .18s ease}
.toolbar-field input::placeholder{color:var(--placeholder)}
.toolbar-field input:hover,.toolbar-field select:hover{border-color:rgba(37,99,235,.34)}
.toolbar-field input:focus,.toolbar-field select:focus{border-color:var(--accent1);box-shadow:0 0 0 4px rgba(37,99,235,.12)}
.toolbar-field select{appearance:none;-webkit-appearance:none;-moz-appearance:none;cursor:pointer;padding-right:46px;background-image:linear-gradient(45deg, transparent 50%, var(--muted) 50%),
        linear-gradient(135deg, var(--muted) 50%, transparent 50%);background-position:calc(100% - 19px) calc(50% - 3px), calc(100% - 13px) calc(50% - 3px);background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.toolbar-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px;padding-top:14px;border-top:1px solid var(--border)}
.btn-primary,.btn-outline,.btn-ghost{min-height:46px;border-radius:15px;padding:0 16px;border:1px solid transparent;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:.92rem;font-weight:800;line-height:1;cursor:pointer;user-select:none;white-space:nowrap;transition:transform .16s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease, color .18s ease, opacity .18s ease}
.btn-primary{color:var(--btn-primary-text);background:var(--accent-grad);border-color:rgba(255,255,255,.08);box-shadow:0 12px 26px rgba(37,99,235,.22)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 18px 34px rgba(37,99,235,.28)}
.btn-outline{color:var(--btn-outline-text);background:var(--btn-outline-bg);border-color:var(--btn-outline-border)}
.btn-outline:hover{transform:translateY(-1px);background:rgba(37,99,235,.14)}
.btn-ghost{color:var(--btn-ghost-text);background:var(--btn-ghost-bg);border-color:var(--btn-ghost-border)}
.btn-ghost:hover{transform:translateY(-1px);background:var(--surface-soft)}
.btn-primary:disabled,.btn-outline:disabled,.btn-ghost:disabled{opacity:.55;cursor:not-allowed;transform:none !important;box-shadow:none !important}
.progress-row{width:100%;display:flex;align-items:center;gap:12px;margin-top:14px;padding-top:14px;border-top:1px solid var(--border)}
.progress-bar{flex:1;height:8px;border-radius:999px;overflow:hidden;background:rgba(148,163,184,.18)}
.progress-bar>div{width:0%;height:100%;background:var(--accent-grad);transition:width .22s ease}
#progressText{min-width:220px;text-align:right;color:var(--muted);font-size:.79rem}
.summary-wrap{max-width:1240px;margin:0 auto 18px;padding:0 16px;display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.summary-card{padding:16px}
.summary-card small{display:block;margin-bottom:6px;color:var(--muted);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase}
.summary-card strong{display:block;color:var(--text);font-size:1.08rem;word-break:break-word}
.workspace{max-width:1240px;margin:0 auto 18px;padding:0 16px}
.result-shell{padding:18px}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.panel-head-left{display:flex;flex-direction:column;gap:4px}
.panel-head-left h3{margin:0;color:var(--text);font-size:1.08rem}
.panel-head-left p{margin:0;color:var(--muted);font-size:.82rem}
.panel-head-right{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.editor-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.editor-pane{border:1px solid var(--border);border-radius:22px;background:var(--preview-bg);overflow:hidden;height:620px;display:flex;flex-direction:column}
.editor-head{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:14px 16px;border-bottom:1px solid var(--border)}
.editor-head h4{margin:0;font-size:1rem;color:var(--text)}
.editor-tools{display:flex;gap:8px;flex-wrap:wrap}
.mini-chip{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:8px 10px;border-radius:999px;border:1px solid var(--border);background:var(--surface-soft);font-size:.74rem;font-weight:800;color:var(--muted)}
.editor-wrap{position:relative;flex:1;min-height:0;display:grid;grid-template-columns:64px 1fr;background:var(--code-bg)}
.line-numbers{margin:0;padding:16px 10px 16px 0;background:var(--editor-gutter);color:var(--muted);text-align:right;overflow:auto;user-select:none;white-space:pre;line-height:1.62;font:500 13px/1.62 ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;border-right:1px solid var(--border)}
.editor-wrap textarea,.editor-wrap pre{margin:0;padding:16px 18px;border:0;outline:none;width:100%;height:100%;background:transparent;color:var(--text);resize:none;overflow:auto;white-space:pre-wrap;word-break:break-word;tab-size:2;line-height:1.62;font:500 13px/1.62 ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace}
.editor-wrap textarea::placeholder{color:var(--placeholder)}
.editor-wrap code{font:inherit}
.tk-hex{color:#0b6e75;font-weight:700}
.tk-space{color:var(--muted)}
.tk-char{color:#0f766e}
.tk-bad{color:#dc2626;font-weight:800}
.editor-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:12px 16px;border-top:1px solid var(--border);background:var(--surface-soft)}
.editor-foot .left,.editor-foot .right{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.badge{display:inline-flex;align-items:center;gap:8px;padding:8px 10px;border-radius:999px;border:1px solid var(--border);background:var(--surface-soft);color:var(--text);font-size:.75rem;font-weight:800}
.badge.success{background:var(--success-soft);border-color:rgba(22,163,74,.18)}
.badge.warning{background:var(--warning-soft);border-color:rgba(217,119,6,.18)}
.badge.danger{background:var(--danger-soft);border-color:rgba(220,38,38,.18)}
.bottom-row{max-width:1240px;margin:0 auto 18px;padding:0 16px;display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
.analysis-card,.preview-card,.tips-card{padding:18px}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.section-head h3,.tips-card h3{margin:0;color:var(--text);font-size:1.04rem}
.section-head p,.tips-card p{margin:0;color:var(--muted);line-height:1.72}
.analysis-box,.preview-box{border:1px solid var(--border);border-radius:20px;background:var(--preview-bg);max-height:520px;overflow:auto;padding:14px}
.analysis-empty,.preview-empty{padding:36px 14px;text-align:center;color:var(--muted)}
.preview-stat{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.mini-stat{padding:14px;border:1px solid var(--border);border-radius:18px;background:var(--surface-soft)}
.mini-stat small{display:block;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:.69rem;margin-bottom:6px}
.mini-stat strong{font-size:1rem;color:var(--text);word-break:break-word}
.warning-box{margin-top:14px;padding:14px 16px;border-radius:18px;border:1px solid rgba(217,119,6,.22);background:var(--warning-soft);color:var(--text);line-height:1.7}
.list{margin:10px 0 0;padding-left:18px;color:var(--muted);line-height:1.82}
.list li + li{margin-top:5px}
.kbd{display:inline-flex;align-items:center;justify-content:center;min-width:28px;height:28px;padding:0 10px;border-radius:10px;border:1px solid var(--border);background:var(--surface-soft);color:var(--text);font-size:.78rem;font-weight:900}
.data-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.data-item{padding:14px;border:1px solid var(--border);border-radius:18px;background:var(--surface-soft);min-height:84px}
.data-item small{display:block;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:.69rem;margin-bottom:6px}
.data-item strong{display:block;color:var(--text);font-size:.95rem;word-break:break-word;line-height:1.55;font-weight:700}
@media (max-width:1180px){
.toolbar-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
.summary-wrap{grid-template-columns:repeat(3,1fr)}
.bottom-row{grid-template-columns:1fr}
}
@media (max-width:920px){
.top-row{grid-template-columns:1fr}
.editor-grid{grid-template-columns:1fr}
}
@media (max-width:760px){
.toolbar-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:680px){
.toolbar-card{position:relative;top:auto}
.toolbar-grid{grid-template-columns:1fr}
.toolbar-actions{display:grid;grid-template-columns:1fr}
.toolbar-actions button{width:100%}
.progress-row{flex-direction:column;align-items:stretch}
#progressText{min-width:auto;text-align:left}
.summary-wrap{grid-template-columns:repeat(2,1fr)}
.editor-wrap{grid-template-columns:52px 1fr}
.preview-stat,.data-grid{grid-template-columns:1fr}
}
@media (max-width:460px){
.summary-wrap{grid-template-columns:1fr}
.editor-wrap pre,.editor-wrap textarea,.line-numbers{font-size:12px}
}

/* page overrides */
/* shared design fixes for the two-pane text tool template */
.tool-app .toolbar-card{position:static;top:auto}
.tool-app .info-card,.tool-app .upload-card,.tool-app .toolbar-card,.tool-app .summary-card,.tool-app .result-shell,.tool-app .tips-card,.tool-app .preview-card,.tool-app .issues-card,.tool-app .freq-card{backdrop-filter:none;-webkit-backdrop-filter:none;box-shadow:none;border-color:var(--zl-line);border-radius:18px}
.tool-app .top-row,.tool-app .toolbar-wrap,.tool-app .summary-wrap,.tool-app .workspace,.tool-app .bottom-row{padding-left:0;padding-right:0;max-width:none}
.tool-app .upload-card{padding:0}
.tool-app .upload-inner{min-height:0;flex-direction:row;flex-wrap:wrap;justify-content:flex-start;text-align:left;gap:6px 16px;padding:16px 20px}
.tool-app .upload-inner .upload-icon{width:48px;height:48px;border-radius:14px;box-shadow:none}
.tool-app .upload-inner>.zl-ui-title{margin:0}
.tool-app .upload-inner>p:not(.zl-ui-title){flex:1 1 220px;margin:0;color:var(--zl-muted)}
.tool-app .upload-inner .btn-primary{margin-left:auto}
.tool-app .upload-inner .upload-note{flex:1 0 100%;justify-content:flex-start;margin:0}
.tool-app .upload-inner.dragover{transform:none;box-shadow:none}
.tool-app .toolbar-field label{font:600 13.5px var(--zl-font-head);color:var(--zl-ink)}
.tool-app .toolbar-field input,.tool-app .toolbar-field select{border-radius:12px;font-size:15px}
.tool-app .check-item{border-color:var(--zl-line);background:var(--zl-surface-2);border-radius:14px;cursor:pointer}
.tool-app .check-item input[type="checkbox"]{width:22px;height:22px;border-radius:6px;border:1.5px solid var(--zl-line-2);background:var(--zl-surface)}
.tool-app .check-item input[type="checkbox"]:checked{background:var(--zl-accent);border-color:var(--zl-accent);box-shadow:none}
.tool-app .check-item input[type="checkbox"]::after{border-color:var(--zl-accent-ink)}
.tool-app .check-item.is-disabled{opacity:.55;cursor:not-allowed}
.tool-app .check-item.is-disabled input{cursor:not-allowed}
.tool-app .check-body strong{font:600 14px var(--zl-font-head);color:var(--zl-ink)}
.tool-app .check-body span{font-size:13px;color:var(--zl-muted)}
.tool-app .progress-bar>div{background:var(--zl-accent)}
.tool-app #progressText{font-size:13.5px;color:var(--zl-muted)}
.tool-app .inline-status,.tool-app .badge,.tool-app .mini-chip{border:0;font-family:var(--zl-font-head);font-weight:500}
.tool-app .inline-status.success,.tool-app .badge.success{background:var(--zl-success-soft);color:var(--zl-success)}
.tool-app .inline-status.warning,.tool-app .badge.warning{background:var(--zl-warning-soft);color:var(--zl-warning)}
.tool-app .inline-status.danger,.tool-app .badge.danger{background:var(--zl-danger-soft);color:var(--zl-danger)}
.tool-app .summary-card small,.tool-app .mini-stat small{text-transform:none;letter-spacing:0;font:500 13px var(--zl-font-head);color:var(--zl-muted)}
.tool-app .summary-card strong,.tool-app .mini-stat strong{font:600 18px var(--zl-font-head);color:var(--zl-ink)}
.tool-app .editor-pane{border-color:var(--zl-line);border-radius:16px;background:var(--zl-surface)}
.tool-app .editor-wrap{background:var(--zl-surface)}
.tool-app .editor-wrap textarea,.tool-app .editor-wrap pre{font:400 14px/1.62 var(--zl-font-mono);color:var(--zl-ink);border:0;border-radius:0;box-shadow:none}
.tool-app .editor-wrap textarea:focus{box-shadow:inset 0 0 0 2px var(--zl-accent)}
.tool-app .line-numbers{font:400 14px/1.62 var(--zl-font-mono)}
.tool-app .editor-head,.tool-app .editor-foot{background:var(--zl-surface-2);border-color:var(--zl-line)}
.tool-app .issues-box,.tool-app .preview-box,.tool-app .freq-box{border-color:var(--zl-line);background:var(--zl-surface-2);border-radius:14px}
.tool-app .issue-item,.tool-app .mini-stat{background:var(--zl-surface);border-color:var(--zl-line);border-radius:12px}
.tool-app .freq-chip{background:var(--zl-tint);border:0;border-radius:999px}
.tool-app mark{background:color-mix(in srgb,var(--zl-marigold) 45%,transparent);color:inherit}
@media (max-width:680px){
  .tool-app .upload-inner{flex-direction:column;align-items:flex-start}
  .tool-app .upload-inner>p:not(.zl-ui-title){flex:0 0 auto}
  .tool-app .upload-inner .btn-primary{margin-left:0;width:100%}
  .tool-app .toolbar-actions{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .tool-app .toolbar-actions button{white-space:normal;min-width:0;line-height:1.2;padding:6px 12px}
  .tool-app .toolbar-actions .btn-primary{grid-column:1/-1}
}
.tool-app [hidden]{display:none!important}
/* converter panes */
.tool-app .editor-wrap{grid-template-columns:1fr}
.tool-app .line-numbers{display:none}
.tool-app .editor-pane{height:460px}
@media (max-width:920px){.tool-app .editor-pane{height:340px}}
.tool-app .tk-bin,.tool-app .tk-hex{color:var(--zl-accent);font-weight:600}
.tool-app .tk-char{color:var(--zl-ink)}
.tool-app .analysis-card{backdrop-filter:none;-webkit-backdrop-filter:none;box-shadow:none;border-color:var(--zl-line);border-radius:18px}
.tool-app .analysis-box{border-color:var(--zl-line);background:var(--zl-surface-2);border-radius:14px}
.tool-app .data-item{background:var(--zl-surface);border-color:var(--zl-line);border-radius:12px}
.tool-app .data-item small{text-transform:none;letter-spacing:0;font:500 13px var(--zl-font-head);color:var(--zl-muted)}
.tool-app .toolbar-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:760px){.tool-app .toolbar-grid{grid-template-columns:1fr}}
.tool-app #progressText.is-error{color:var(--zl-danger);font-weight:600}