:root{--text-soft:#2f4a4c;--panel-bg:linear-gradient(180deg,#ffffff,#f6faf9);--page-bg:#ffffff;--page-stroke:rgba(148,163,184,.22)}
html[data-theme="dark"],html[data-theme="dark"],html[data-theme="dark"],html[data-theme="dark"],html[data-theme="dark"],html[data-theme="dark"],html[data-theme="dark"],html[data-theme="dark"]{--text-soft:#c6d4d2;--panel-bg:linear-gradient(180deg, rgba(15,23,42,.82), rgba(2,6,23,.92));--page-bg:#ffffff;--page-stroke:rgba(148,163,184,.26)}
.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:1200px;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:1200px;margin:0 auto 18px;padding:0 16px;display:grid;grid-template-columns:1.04fr .96fr;gap:16px}
.info-card,.upload-card,.toolbar-card,.summary-card,.result-shell,.tips-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:1200px;margin:0 auto 18px;padding:0 16px}
.toolbar-card{padding:18px;position:sticky;top:72px;z-index:40}
.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}
.toolbar-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.toolbar-extra{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top: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, background .18s ease, color .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}
.toggle-row{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:46px;border-radius:15px;border:1px solid var(--input-border);background:var(--input-bg);padding:0 12px}
.toggle-row span{font-size:.9rem;color:var(--text);font-weight:700}
.switch{position:relative;width:48px;height:28px;display:inline-block}
.switch input{display:none}
.switch-slider{position:absolute;inset:0;border-radius:999px;cursor:pointer;background:rgba(148,163,184,.32);transition:.2s ease}
.switch-slider:before{content:"";position:absolute;left:4px;top:4px;width:20px;height:20px;border-radius:50%;background:#fff;transition:.2s ease;box-shadow:0 2px 8px rgba(0,0,0,.18)}
.switch input:checked + .switch-slider{background:linear-gradient(135deg,var(--accent1),var(--accent2))}
.switch input:checked + .switch-slider:before{transform:translateX(20px)}
.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:1200px;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}
.good{color:var(--success)}
.warn{color:var(--warning)}
.bad{color:var(--danger)}
.workspace{max-width:1200px;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}
.preview-shell{border:1px solid var(--border);border-radius:22px;background:var(--preview-bg);padding:16px;overflow:hidden}
.preview-top{display:grid;grid-template-columns:320px 1fr;gap:16px}
.analysis-pane,.preview-pane{border:1px solid var(--border);border-radius:20px;background:var(--surface-soft);overflow:hidden}
.analysis-head,.preview-head{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:14px 16px;border-bottom:1px solid var(--border)}
.analysis-head h4,.preview-head h4{margin:0;font-size:1rem;color:var(--text)}
.analysis-body{padding:16px}
.detail-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-bottom:12px}
.detail-card{border:1px solid var(--border);border-radius:18px;background:var(--card-bg);padding:14px}
.detail-card small{display:block;margin-bottom:6px;color:var(--muted);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase}
.detail-card strong{display:block;color:var(--text);font-size:1rem;word-break:break-word}
.notice{margin-top:12px;padding:12px 14px;border-radius:16px;border:1px solid var(--border);background:var(--surface-soft);color:var(--muted);font-size:.86rem;line-height:1.65}
.notice.success{background:var(--success-soft);border-color:rgba(22,163,74,.22)}
.notice.danger{background:var(--danger-soft);border-color:rgba(220,38,38,.22)}
.preview-pane{display:flex;flex-direction:column}
.preview-grid{padding:16px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;max-height:620px;overflow:auto}
.page-card{border:1px solid var(--border);background:var(--card-bg);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-soft)}
.page-thumb{aspect-ratio:0.707 / 1;display:flex;align-items:center;justify-content:center;background:linear-gradient(180deg, rgba(148,163,184,.08), rgba(148,163,184,.03));padding:12px}
.page-thumb canvas{width:100%;height:auto;display:block;background:var(--page-bg);border:1px solid var(--page-stroke);border-radius:10px;box-shadow:0 10px 20px rgba(15,23,42,.08)}
.page-meta{padding:12px;display:grid;gap:8px}
.page-meta strong{color:var(--text);font-size:.92rem}
.page-badges{display:flex;flex-wrap:wrap;gap:8px}
.page-badges span{padding:7px 10px;border-radius:999px;border:1px solid var(--border);background:var(--surface-soft);color:var(--muted);font-size:.74rem;font-weight:800}
.empty-state{text-align:center;padding:64px 22px;border:1px dashed var(--border);border-radius:22px;color:var(--muted);background:var(--surface-soft)}
.bottom-wrap{max-width:1200px;margin:0 auto 50px;padding:0 16px}
.tips-card{padding:18px 20px}
.tips-card h3{margin:0 0 8px;color:var(--text);font-size:1.02rem}
.tips-card p{margin:0;color:var(--muted);line-height:1.7}
.tips-card + .tips-card{margin-top:14px}
.modal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;padding:18px;background:rgba(2,6,23,.48);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);z-index:9999}
.modal.show{display:flex}
.modal-card{width:min(100%, 460px);border-radius:28px;border:1px solid var(--border);background:var(--surface-strong);box-shadow:0 40px 90px rgba(2,6,23,.30);overflow:hidden}
.modal-head{padding:20px 22px 14px;display:flex;align-items:flex-start;gap:14px;border-bottom:1px solid var(--border)}
.modal-icon{width:52px;height:52px;border-radius:18px;display:grid;place-items:center;background:linear-gradient(135deg, rgba(37,99,235,.18), rgba(124,58,237,.18));border:1px solid var(--border);font-size:1.45rem;flex:0 0 auto}
.modal-head h3{margin:2px 0 6px;font-size:1.16rem;color:var(--text)}
.modal-head p{margin:0;color:var(--muted);line-height:1.7;font-size:.9rem}
.modal-body{padding:18px 22px;display:grid;gap:12px}
.modal-field{display:grid;gap:6px}
.modal-field label{font-size:.8rem;font-weight:800;color:var(--text)}
.modal-field input{width:100%;min-height:48px;border-radius:16px;border:1px solid var(--input-border);background:var(--input-bg);color:var(--input-text);padding:0 14px;outline:none;transition:border-color .18s ease, box-shadow .18s ease}
.modal-field input:focus{border-color:var(--accent1);box-shadow:0 0 0 4px rgba(37,99,235,.12)}
.modal-msg{min-height:22px;color:var(--danger);font-size:.86rem;font-weight:700}
.modal-actions{padding:0 22px 22px;display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap}
@media (max-width:1180px){
.toolbar-grid,.toolbar-extra{grid-template-columns:repeat(2,minmax(0,1fr))}
.summary-wrap{grid-template-columns:repeat(3,1fr)}
.preview-top{grid-template-columns:1fr}
.preview-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:920px){
.top-row{grid-template-columns:1fr}
}
@media (max-width:780px){
.preview-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:680px){
.toolbar-card{position:relative;top:auto}
.toolbar-grid,.toolbar-extra{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)}
.detail-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
.preview-grid{grid-template-columns:1fr}
}
@media (max-width:460px){
.summary-wrap{grid-template-columns:1fr}
.modal-actions{display:grid;grid-template-columns:1fr}
.modal-actions button{width:100%}
}

/* page overrides */
/* Switches: keep the real checkbox focusable for keyboard users. */
.tool-app .switch input{display:block;position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:pointer;z-index:1}
.tool-app .switch input:checked + .switch-slider{background:var(--zl-accent)}
.tool-app .switch input:focus-visible + .switch-slider{outline:3px solid var(--zl-marigold);outline-offset:2px}
.tool-app .switch input:disabled + .switch-slider{opacity:.5;cursor:not-allowed}
.tool-app .toggle-row label:not(.switch){font-size:15px;color:var(--zl-ink);font-weight:500;cursor:pointer}
.tool-app .toolbar-field .field-label{font-size:.77rem;font-weight:800;color:var(--zl-ink)}
.tool-app .toolbar-field select:disabled{opacity:.55;cursor:not-allowed}
.tool-app .inline-status.success{background:var(--zl-success-soft);border-color:transparent;color:var(--zl-success)}
.tool-app .inline-status.warning{background:var(--zl-warning-soft);border-color:transparent;color:var(--zl-warning)}
.tool-app .inline-status.danger{background:var(--zl-danger-soft);border-color:transparent;color:var(--zl-danger)}
.tool-app .notice{border-radius:12px;font-size:14.5px;line-height:1.5;color:var(--zl-ink-2)}
.tool-app .notice.warn{background:var(--zl-warning-soft);border-color:transparent;color:var(--zl-note-ink)}
.tool-app .notice code{font-family:var(--zl-font-mono);font-size:14px;background:var(--zl-surface);border:1px solid var(--zl-line);border-radius:6px;padding:1px 6px;word-break:break-all}
.tool-app .notice .btn-small{min-height:32px;padding:0 12px;font-size:13.5px;margin-left:4px}
.tool-app .notice .notice-hint{display:block;margin-top:6px}
.tool-app .page-thumb{background:var(--zl-surface-2)}
/* Password dialog (outside the tool container) */
.modal{background:rgba(8,20,21,.55);backdrop-filter:none;-webkit-backdrop-filter:none}
.modal .modal-card{background:var(--zl-surface);border:1px solid var(--zl-line);border-radius:20px;box-shadow:var(--zl-shadow);color:var(--zl-ink);font-family:var(--zl-font-body)}
.modal .modal-icon{display:none}
.modal .modal-title{font:600 18px/1.3 var(--zl-font-head);color:var(--zl-ink);margin:2px 0 6px}
.modal .modal-head p{color:var(--zl-muted);font-size:15px}
.modal .modal-field label{font:600 14px var(--zl-font-head);color:var(--zl-ink)}
.modal .modal-field input{min-height:46px;border-radius:12px;border:1.5px solid var(--zl-line-2);background:var(--zl-surface);color:var(--zl-ink);font-size:16px;padding:0 13px}
.modal .modal-field input:focus{outline:none;border-color:var(--zl-accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--zl-accent) 22%,transparent)}
.modal .modal-msg{color:var(--zl-danger);font-weight:500}
.modal .modal-actions .btn-primary,.modal .modal-actions .btn-ghost{min-height:46px;padding:0 22px;border-radius:999px;font:600 15px var(--zl-font-head);cursor:pointer}
.modal .modal-actions .btn-primary{background:var(--zl-accent);color:var(--zl-accent-ink);border:0}
.modal .modal-actions .btn-ghost{background:var(--zl-surface);color:var(--zl-ink);border:1.5px solid var(--zl-line-2)}
@media (min-width:1181px){.tool-app .toolbar-extra.cols-5{grid-template-columns:repeat(5,minmax(0,1fr))}}
@media (max-width:520px){.tool-app .preview-grid{grid-template-columns:1fr 1fr;padding:10px;gap:10px}}
@media (max-width:460px){.tool-app .summary-wrap{grid-template-columns:1fr 1fr;gap:8px}.tool-app .summary-card{padding:10px 12px}.tool-app .summary-card strong{overflow-wrap:anywhere}}