/* ESG檢核資料分析平台 — review-worksheet design.
   One loud accent: the reviewer's highlighter (--mark), used for the current step,
   the chosen AI and evidence links. Everything else stays quiet ink on paper. */
:root{
 --paper:#f6f7f4;--surface:#fff;--ink:#18232b;--ink-2:#46545c;--ink-3:#6b777d;
 --petrol:#14424a;--petrol-2:#0d3138;--petrol-tint:#e4eeee;
 --mark:#f2d45c;--mark-soft:#fbefb8;
 --rule:#d8ddde;--rule-strong:#b9c3c5;
 --low:#2d7a57;--low-bg:#e3f1e9;--mid:#94620f;--mid-bg:#fbf0d4;--high:#b03a2e;--high-bg:#fbe5e1;--unk:#5a6974;--unk-bg:#e8edf0;
 --sans:"PingFang TC","Noto Sans TC","Microsoft JhengHei","Heiti TC",system-ui,sans-serif;
 --serif:"Songti TC","Noto Serif TC","Source Han Serif TC","PMingLiU","MingLiU",serif;
 --radius:6px;
 font-family:var(--sans);font-size:16px;line-height:1.7;color:var(--ink);background:var(--paper);
 font-variant-numeric:tabular-nums;-webkit-text-size-adjust:100%;scrollbar-gutter:stable;
}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;background:var(--paper)}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;touch-action:manipulation}
button:disabled{opacity:.45;cursor:not-allowed}
:focus-visible{outline:3px solid var(--petrol);outline-offset:3px}
[hidden]{display:none!important}
p{margin:.4em 0;color:var(--ink-2)}
h1,h2,h3{font-family:var(--serif);font-weight:700;color:var(--ink);margin:0}
h1{font-size:clamp(30px,4.2vw,44px);line-height:1.25;letter-spacing:.02em}
h2{font-size:24px;line-height:1.35;letter-spacing:.02em}
h3{font-size:18px;line-height:1.45}
h4{font-size:15px;margin:18px 0 6px}
a{color:var(--petrol)}

/* Header */
.site-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px max(20px,calc((100% - 1160px)/2));border-bottom:1px solid var(--rule);background:var(--surface)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);font-weight:700;min-width:0}
.mark{display:block;width:40px;height:40px;flex:none}
.brand-name{overflow-wrap:anywhere}
.privacy{margin:0;font-size:14px;color:var(--ink-3);text-align:right}

main{max-width:1160px;margin:0 auto;padding:40px 20px 0}

/* Masthead: title + sector switch */
.masthead{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:32px;align-items:end;padding-bottom:32px;border-bottom:2px solid var(--ink);margin-bottom:28px}
.intro{font-size:17px;max-width:34em;margin-top:12px}
.sector-tabs{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.sector-tabs button{display:flex;flex-direction:column;align-items:flex-start;gap:2px;text-align:left;padding:14px 16px;background:var(--surface);border:1px solid var(--rule-strong);border-radius:var(--radius)}
.sector-tabs button b{font-size:16px}
.sector-tabs button small{font-size:13px;color:var(--ink-3);line-height:1.5}
.sector-tabs button:hover{border-color:var(--petrol)}
.sector-tabs [aria-pressed=true]{background:var(--petrol);border-color:var(--petrol);color:#fff}
.sector-tabs [aria-pressed=true] small{color:#c7dadb}

/* Status messages */
#message{margin:0 0 24px;padding:12px 16px;border-left:4px solid var(--petrol);background:var(--petrol-tint);color:var(--petrol-2);border-radius:0 var(--radius) var(--radius) 0}
#message[data-error=true],#import-status[data-error=true]{border-color:var(--high);background:var(--high-bg);color:#7f271e}
#import-status{margin:16px 0 0;padding:12px 16px;border-left:4px solid var(--petrol);background:var(--petrol-tint);color:var(--petrol-2);white-space:pre-wrap;overflow-wrap:anywhere}

/* Workbench: step spine + panel */
.workbench{display:grid;grid-template-columns:240px minmax(0,1fr);gap:40px;align-items:start}
.rail{position:sticky;top:24px}
.steps{display:flex;flex-direction:column;position:relative}
.steps::before{content:"";position:absolute;left:17px;top:28px;bottom:28px;width:2px;background:var(--rule-strong)}
.steps button{position:relative;display:grid;grid-template-columns:36px 1fr;column-gap:14px;text-align:left;padding:12px 8px 12px 0;border:0;background:none;color:var(--ink-3)}
.steps .num{grid-row:1/3;display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--paper);border:2px solid var(--rule-strong);font-weight:700;color:var(--ink-3);position:relative;z-index:1}
.steps b{font-size:16px;color:var(--ink-2)}
.steps small{font-size:13px;line-height:1.5}
.steps button:hover b{color:var(--petrol)}
.steps [aria-current] .num{background:var(--petrol);border-color:var(--petrol);color:#fff}
.steps [aria-current] b{color:var(--petrol)}
.steps [aria-current] small{color:var(--ink-2)}
.rail-foot{margin-top:20px;padding-top:18px;border-top:1px solid var(--rule)}
.session-tip{font-size:13px;color:var(--ink-3);margin:0 0 12px}

/* Sheets (the working surfaces) */
.sheet{background:var(--surface);border:1px solid var(--rule);border-top:3px solid var(--petrol);border-radius:0 0 var(--radius) var(--radius);padding:28px 32px}
.sheet+.sheet{margin-top:20px}
.sheet-head{margin-bottom:22px}
.sheet-head p{font-size:15px;margin-top:6px}
#quality{font-size:14px;color:var(--ink-3);overflow-wrap:anywhere}
.hint{font-size:13px;color:var(--ink-3)}

/* Form controls */
label{display:block;font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:16px}
input,select,textarea{display:block;width:100%;min-width:0;margin-top:6px;padding:10px 12px;border:1px solid var(--rule-strong);border-radius:var(--radius);background:#fdfdfc;font-weight:400;color:var(--ink)}
textarea{resize:vertical;line-height:1.65;font-size:14px}
input:focus,select:focus,textarea:focus{outline:2px solid var(--petrol);outline-offset:0;border-color:var(--petrol)}
input[type=file]{padding:8px;font-size:14px;background:var(--surface)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.basic-metadata{grid-template-columns:2fr 1fr}

.upload{margin:20px 0 0;padding:24px;border:2px dashed var(--rule-strong);border-radius:var(--radius);background:var(--paper);transition:background-color .15s,border-color .15s}
.upload-title{display:block;font-family:var(--serif);font-size:18px;color:var(--ink)}
.upload-note{display:block;margin-top:10px;font-size:13px;font-weight:400;color:var(--ink-3)}
.upload.over{border-color:var(--petrol);background:var(--petrol-tint)}

.queue{display:grid;gap:8px;margin-top:16px}
.queue-task{display:block;width:100%;text-align:left;padding:12px 14px;border:1px solid var(--rule);border-radius:var(--radius);background:var(--surface);font-size:15px;font-weight:600;overflow-wrap:anywhere}
.queue-task span{display:block;font-size:13px;font-weight:400;color:var(--ink-3);margin-top:2px}
.queue-task[aria-current]{border-color:var(--petrol);box-shadow:inset 4px 0 0 var(--petrol)}

/* Buttons */
.primary,.secondary,.ghost,.file-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border-radius:var(--radius);font-size:15px;font-weight:600;text-decoration:none;text-align:center;line-height:1.4}
.primary{background:var(--petrol);border:1px solid var(--petrol);color:#fff}
.primary:hover{background:var(--petrol-2)}
.secondary,.file-button{background:var(--surface);border:1px solid var(--rule-strong);color:var(--petrol)}
.secondary:hover,.file-button:hover{border-color:var(--petrol);background:var(--petrol-tint)}
.ghost{background:none;border:1px solid transparent;color:var(--petrol);padding-left:0;padding-right:0;text-decoration:underline;text-underline-offset:4px}
.ghost:hover{color:var(--petrol-2)}
.button-row{display:flex;flex-wrap:wrap;gap:10px}
.next-action{display:flex;justify-content:flex-end;margin-top:8px}
.next-action .primary{font-size:16px;padding:12px 24px}
.action-bar{padding:16px 0}

/* Step 2: AI choice */
.ai-choice{border:0;padding:0;margin:0 0 22px;min-width:0}
.ai-choice legend{font-size:14px;font-weight:600;color:var(--ink-2);padding:0;margin-bottom:8px}
.ai-picker{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.ai-option{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:2px;text-align:left;padding:16px 18px 16px 50px;border:1px solid var(--rule-strong);border-radius:var(--radius);background:var(--surface)}
.ai-option::before{content:"";position:absolute;left:18px;top:21px;width:18px;height:18px;border-radius:50%;border:2px solid var(--rule-strong);background:var(--surface)}
.ai-option b{font-size:18px;font-family:var(--serif)}
.ai-option small{font-size:13px;color:var(--ink-3)}
.ai-option:hover{border-color:var(--petrol)}
.ai-option[aria-checked=true]{border:2px solid var(--petrol);padding:15px 17px 15px 49px;background:var(--petrol-tint)}
.ai-option[aria-checked=true]::before{left:17px;top:20px;border-color:var(--petrol);background:radial-gradient(circle,var(--petrol) 0 4px,#fff 5px)}

.notice{margin:0 0 20px;padding:12px 16px;border-left:4px solid var(--petrol);background:var(--paper);color:var(--ink-2);font-size:14px;line-height:1.7;overflow-wrap:anywhere}

.handoff-actions{list-style:none;counter-reset:handoff;margin:0;padding:0;border-top:1px solid var(--rule)}
.handoff-actions>li{counter-increment:handoff;position:relative;padding:22px 0 22px 52px;border-bottom:1px solid var(--rule)}
.handoff-actions>li::before{content:counter(handoff);position:absolute;left:0;top:22px;width:34px;height:34px;display:grid;place-items:center;border-radius:50%;border:2px solid var(--petrol);color:var(--petrol);font-weight:700}
.handoff-actions h3{margin-bottom:2px}
.handoff-actions p{font-size:15px}
.handoff-actions>li>.primary{margin-top:12px}
.copy-status{margin-top:10px;font-weight:600;color:var(--low)}
.copy-status:empty{display:none}
.text-handoff{margin-top:20px;padding:20px;background:var(--paper);border-radius:var(--radius)}
.text-handoff h3{font-size:17px;margin-bottom:6px}
.text-handoff details{margin-top:14px}
.text-handoff textarea{margin-top:10px}
.batch-status{margin:14px 0 12px;padding:8px 12px;background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius);font-size:14px;color:var(--ink)}
#batch-prev{margin-top:10px}

summary{cursor:pointer;font-weight:600;color:var(--petrol)}
details>summary{padding:4px 0}
.disclosure{margin-top:18px;padding-top:16px;border-top:1px solid var(--rule)}
.disclosure[open]>summary{margin-bottom:14px}
.disclosure h3{margin-bottom:10px}
blockquote{margin:12px 0;padding:14px 18px;background:var(--paper);border-left:4px solid var(--petrol);font-size:14px;color:var(--ink);line-height:1.75}

/* Step 3: import + results */
.import-card .file-button{cursor:pointer;margin-bottom:16px;flex-direction:column;align-items:flex-start}
.import-card .file-button input{max-width:280px;font-size:13px;margin-top:8px}
.import-card details{border-top:1px solid var(--rule);padding-top:14px}
.import-card details label{margin-top:12px}
.empty{padding:56px 24px;text-align:left;border:1px dashed var(--rule-strong);border-radius:var(--radius);background:transparent}
.empty h2{font-size:22px}
.empty p{max-width:34em}

.report{margin-top:8px}
.result-top{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:8px}
.result-top h2{font-size:28px}
.report>.small,.report .small{font-size:13px;color:var(--ink-3);margin-top:6px}
.report>.notice{margin:14px 0 0}

.overview{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:0;margin:24px 0 8px;border:1px solid var(--rule);border-radius:var(--radius);overflow:hidden;background:var(--rule)}
.stat{background:var(--surface);padding:16px 18px;margin:0 1px 1px 0}
.stat>span:first-child{display:block;font-size:14px;color:var(--ink-2);line-height:1.5}
.stat .small{margin-top:6px}

/* Risk stamp */
.badge{display:inline-block;margin:10px 0 0;padding:3px 12px;border:2px solid currentColor;border-radius:4px;font-weight:700;font-size:15px;letter-spacing:.06em;line-height:1.5;outline:1px solid currentColor;outline-offset:2px;background:var(--unk-bg);color:var(--unk)}
.badge.low{color:var(--low);background:var(--low-bg)}
.badge.mid{color:var(--mid);background:var(--mid-bg)}
.badge.high{color:var(--high);background:var(--high-bg)}
.badge.unknown{color:var(--unk);background:var(--unk-bg);border-style:dashed}

.item-section{margin-top:30px;padding-top:24px;border-top:2px solid var(--ink)}
.item-title{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 16px}
.item-title .badge{margin:0}
.item-section>p{font-size:15px;margin:12px 0;white-space:pre-wrap;overflow-wrap:anywhere}
.item-section>button{margin-top:12px}
.rule-basis{padding:10px 14px;background:var(--paper);border-radius:var(--radius);color:var(--ink)!important;font-weight:600}
.item-section ul{padding-left:20px;font-size:14px;color:var(--ink-2)}

.table-wrap{overflow:auto;margin-top:14px;border:1px solid var(--rule);border-radius:var(--radius);background:var(--surface)}
table{width:100%;min-width:640px;border-collapse:collapse;text-align:left}
th{padding:12px 14px;background:var(--paper);border-bottom:1px solid var(--rule-strong);font-size:13px;font-weight:600;color:var(--ink-2)}
td{padding:16px 14px;vertical-align:top;border-top:1px solid var(--rule);font-size:14px;white-space:pre-wrap;overflow-wrap:anywhere}
.report td:first-child{width:22%;font-weight:600}
.report td:nth-child(2){min-width:104px}
.report td:last-child{width:18%}
.pdf-page-link{font-weight:600;color:var(--petrol);text-decoration:underline;text-underline-offset:3px}
.pdf-page-link:hover{color:var(--petrol-2)}

/* Footer */
.site-footer{margin-top:64px;padding:24px 0 40px;border-top:1px solid var(--rule);display:flex;flex-wrap:wrap;gap:12px 32px;align-items:flex-start;justify-content:space-between}
.site-footer p{flex:1 1 100%;margin:0;font-size:13px;color:var(--ink-3)}
.site-footer a{font-size:14px}

/* Responsive */
@media (max-width:900px){
 .masthead{grid-template-columns:1fr;gap:20px}
 .workbench{grid-template-columns:1fr;gap:20px}
 .rail{position:static}
 .steps{flex-direction:row;gap:4px;background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius);padding:6px}
 .steps::before{display:none}
 .steps button{flex:1;grid-template-columns:1fr;row-gap:2px;padding:8px;border-radius:4px}
 .steps .num{grid-row:auto;width:28px;height:28px;font-size:14px}
 .steps small{display:none}
 .steps b{font-size:14px}
 .rail-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:4px 16px;margin-top:10px;padding-top:0;border-top:0}
 .session-tip{margin:0}
}
@media (max-width:600px){
 main{padding:24px 16px 0}
 .site-header{padding:12px 16px}
 .privacy{display:none}
 .sector-tabs,.ai-picker,.field-row,.basic-metadata{grid-template-columns:1fr}
 .sheet{padding:22px 18px}
 .handoff-actions>li{padding-left:46px}
 .next-action .primary,.handoff-actions .primary{width:100%}
 .result-top{flex-direction:column}
 .result-top h2{font-size:24px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* Print: only the chosen report */
@media print{
 body,main{background:#fff;padding:0}
 body *{visibility:hidden}
 .print-target,.print-target *{visibility:visible}
 .print-target{position:absolute;inset:0 0 auto 0;margin:0;padding:10px;border:0}
 .print-target .button-row{display:none!important}
 .site-header,.masthead,.rail,#message,#step-1,#step-2,.import-card,.action-bar,.site-footer{display:none!important}
 #work,#step-3{display:block!important}
 .table-wrap{overflow:visible}table{min-width:0}tr{break-inside:avoid}h3{break-after:avoid}
 .badge{outline:0}
}
.card.report{background:var(--surface);border:1px solid var(--rule);border-top:3px solid var(--petrol);border-radius:0 0 var(--radius) var(--radius);padding:28px 32px}
@media (max-width:600px){.card.report{padding:22px 18px}}
@media print{.card.report{border:0;padding:10px}}
.steps b{justify-self:start}