/* 案件工作區（public/case.js）專用樣式：新客人、案件頁（對話、工作紀錄、檔案、產出、資訊）。
   共用 token 與基礎元件在 ../styles.css；這裡只放此區塊獨有的 class（前綴 .case-）。
   原則：疊加在既有 .case-head／.tabs／.bubble／.composer／.memo／.progress／.file-card／.doc-item 之上，不改既有 id 與 data-*。 */

/* ---------- 0. 版面變數 ---------- */
.case-page { --case-pad: 16px; --case-tabs-h: var(--tabs-h, 46px); --case-composer-h: 0px; }
@media (max-width: 899px) {
  .case-page { --case-pad: 14px; padding-bottom: calc(var(--case-composer-h) + var(--tabbar-h) + env(safe-area-inset-bottom) + 28px); }
}

/* ---------- 1. 頁頭：客戶名＋階段＋meta ---------- */
.case-hero { padding: 6px 0 2px; gap: 0; }
.case-hero-row { display: flex; align-items: flex-start; gap: 14px; }
.case-hero-avatar.avatar.lg { width: 48px; height: 48px; font-size: 16px; border-radius: 14px; box-shadow: var(--shadow-sm); margin-top: 2px; }
.case-hero-text { min-width: 0; flex: 1; display: flex; flex-direction: column; gap: 9px; }
.case-hero-title { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.case-hero-title h1 { font-size: 24px; letter-spacing: -0.015em; line-height: 1.2; }
.case-stage.chip { height: 26px; font-size: 12.5px; padding: 0 10px; font-weight: 700; }
.case-pin { color: var(--primary); display: inline-flex; }
.case-live { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; font-weight: 700; color: var(--primary); }
.case-head .case-meta { display: flex; flex-wrap: wrap; gap: 6px 8px; align-items: center; font-size: 13px; color: var(--text); }
.case-head .case-meta > .case-meta-item::before { content: none; display: none; }
.case-meta-item { display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 10px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); white-space: nowrap; max-width: 100%; min-width: 0; }
.case-meta-k { color: var(--text-3); font-size: 12.5px; }
.case-meta-v { font-weight: 600; overflow: hidden; text-overflow: ellipsis; }
.case-meta-owner { padding-left: 3px; }
.case-meta-time { background: transparent; border-color: transparent; color: var(--text-3); padding-left: 2px; }
.case-meta-time .icon { color: var(--text-3); }
@media (max-width: 899px) {
  .case-hero { padding: 0; }
  .case-hero-row { gap: 10px; }
  .case-hero-avatar.avatar.lg { width: 38px; height: 38px; font-size: 13px; border-radius: 11px; margin-top: 0; }
  .case-hero-text { gap: 6px; }
  .case-hero-title { gap: 8px; }
  .case-hero-title h1 { font-size: 20px; }
  .case-stage.chip { height: 24px; font-size: 12.5px; padding: 0 8px; }
  .case-head .case-meta { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; margin-right: calc(-1 * var(--case-pad)); padding: 0 var(--case-pad) 2px 0; -webkit-overflow-scrolling: touch; }
  .case-meta::-webkit-scrollbar { display: none; }
  .case-meta-item { height: 26px; padding: 0 9px; font-size: 12.5px; flex: 0 0 auto; gap: 5px; }
  .case-meta-owner .avatar.sm { width: 22px; height: 22px; }
}

/* 紅燈橫幅 */
.case-redbar { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 12px; align-items: start; margin-top: 12px; padding: 12px 14px 12px 16px; border-radius: var(--radius); background: var(--red-soft); border: 1px solid color-mix(in srgb, var(--red) 35%, transparent); color: var(--red); box-shadow: inset 4px 0 0 var(--red); }
.case-redbar-icon { width: 34px; height: 34px; border-radius: 10px; background: var(--red); color: #fff; display: grid; place-items: center; }
.case-redbar-icon .icon { margin: 0; }
.case-redbar-body { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.case-redbar-title { font-weight: 800; font-size: 15px; }
.case-redbar-text { font-weight: 600; color: var(--text); font-size: 14px; }
.case-redbar-hint { font-weight: 400; color: var(--text-2); font-size: 13px; line-height: 1.6; }
.case-redbar-backup { margin-top: 6px; padding: 8px 10px; border-radius: var(--radius-sm); background: color-mix(in srgb, var(--surface) 82%, transparent); border: 1px dashed color-mix(in srgb, var(--red) 45%, transparent); color: var(--text); font-weight: 400; font-size: 13.5px; display: flex; flex-direction: column; gap: 2px; white-space: pre-wrap; }
.case-redbar-backup-label { font-size: 12.5px; font-weight: 700; color: var(--red); letter-spacing: .02em; }
.case-redbar-copy { align-self: center; border-color: color-mix(in srgb, var(--red) 45%, transparent); color: var(--red); background: var(--surface); }
.case-redbar-copy:hover { background: var(--surface-2); }
@media (max-width: 899px) {
  .case-redbar { grid-template-columns: auto minmax(0, 1fr); padding: 10px 12px 10px 14px; gap: 10px; margin-top: 10px; }
  .case-redbar-icon { width: 30px; height: 30px; }
  .case-redbar-copy { grid-column: 2; justify-self: start; }
}

/* ---------- 2. 分頁列：貼頂 ---------- */
.case-tabs { position: sticky; top: var(--topbar-h); z-index: 14; margin: 12px calc(-1 * var(--case-pad)) 16px; padding: 4px var(--case-pad) 0; min-height: var(--case-tabs-h); background: color-mix(in srgb, var(--bg) 90%, transparent); backdrop-filter: saturate(1.3) blur(10px); -webkit-backdrop-filter: saturate(1.3) blur(10px); border-bottom: 1px solid var(--border); gap: 4px; }
.case-tabs .case-tab { position: relative; padding: 11px 12px; margin-bottom: 0; display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--text-2); border-bottom: 0; border-radius: 8px 8px 0 0; transition: color .15s, background .15s; }
.case-tabs .case-tab:hover { color: var(--text); background: var(--surface-2); text-decoration: none; }
.case-tabs .case-tab.active { color: var(--primary); border-bottom: 0; }
.case-tabs .case-tab.active::after { content: ''; position: absolute; left: 8px; right: 8px; bottom: -1px; height: 3px; border-radius: 3px 3px 0 0; background: var(--primary); }
.case-tab-icon { color: var(--text-3); }
.case-tab.active .case-tab-icon { color: var(--primary); }
.case-tabs .count { min-width: 21px; height: 21px; padding: 0 6px; border-radius: 999px; background: var(--surface-3); color: var(--text-2); font-size: 12.5px; font-weight: 700; display: inline-grid; place-items: center; font-variant-numeric: tabular-nums; }
.case-tab.active .count { background: var(--primary); color: var(--on-primary); }
@media (max-width: 599px) {
  .case-tabs { margin-top: 8px; margin-bottom: 12px; gap: 0; }
  .case-tabs .case-tab { padding: 10px 9px; font-size: 13.5px; gap: 4px; }
  .case-tab-icon { display: none; }
}

/* ---------- 3. 對話時間線 ---------- */
.case-workspace { gap: 20px; }
.case-chat { display: flex; flex-direction: column; min-width: 0; }
.case-timeline { gap: 26px; padding-bottom: 6px; }
.case-empty { padding: 40px 16px; display: flex; flex-direction: column; align-items: center; gap: 6px; line-height: 1.65; font-size: 14.5px; }
.case-empty .icon { width: 40px; height: 40px; color: var(--border-2); margin-bottom: 6px; }
.case-empty-title { font-weight: 700; color: var(--text-2); font-size: 15px; }
.case-round-head { gap: 10px; font-size: 12.5px; }
.case-round-head > .case-round-no { display: inline-flex; align-items: center; height: 24px; padding: 0 10px; border-radius: 999px; background: var(--ink); color: var(--paper); font-weight: 700; font-size: 12.5px; letter-spacing: .02em; white-space: nowrap; }
[data-theme='dark'] .case-round-head > .case-round-no { background: var(--paper); color: var(--ink); }
.case-round-meta { color: var(--text-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.case-kind.chip { height: 24px; font-size: 12.5px; padding: 0 10px; font-weight: 700; }
.case-attach-row { gap: 8px; }

/* 訊息列：頭像＋名稱＋時間＋泡泡 */
.case-msg { display: flex; align-items: flex-end; gap: 10px; max-width: 100%; }
.case-msg-them { align-self: flex-start; max-width: 88%; }
.case-msg-us { align-self: flex-end; max-width: 94%; }
.case-msg-avatar.avatar { width: 32px; height: 32px; font-size: 12.5px; margin-bottom: 2px; }
.case-msg-avatar-us { background: var(--copper); display: inline-grid; place-items: center; overflow: hidden; }
.case-msg-avatar-us img { width: 22px; height: 22px; display: block; }
.case-msg-body { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.case-msg-us .case-msg-body { align-items: flex-end; }
.case-msg-head { display: flex; align-items: baseline; gap: 8px; font-size: 12.5px; color: var(--text-3); padding: 0 4px; }
.case-msg-name { font-weight: 700; color: var(--text-2); }
.case-bubble { white-space: normal; max-width: 100%; }
.case-bubble-text { white-space: normal; word-break: break-word; }
.case-p { margin: 0; line-height: 1.75; }
.case-p + .case-p { margin-top: .7em; }
.case-reply .hl, .case-side-v .hl, .case-memo-text .hl, .case-docpath .hl, .case-hl { font-weight: 700; color: var(--text); background: linear-gradient(transparent 62%, var(--hl, var(--copper-soft)) 62%); padding: 0 2px; border-radius: 2px; -webkit-box-decoration-break: clone; box-decoration-break: clone; }
.case-hl-key { color: var(--copper-deep); }
[data-theme='dark'] .case-hl-key { color: var(--primary); }
.case-hl-num { font-variant-numeric: tabular-nums; }
.case-hl-time { font-weight: 700; font-variant-numeric: tabular-nums; }
.case-hl-doc { font-weight: 700; letter-spacing: .01em; }
.case-reply-red .case-hl { background: linear-gradient(transparent 62%, color-mix(in srgb, var(--surface) 75%, transparent) 62%); }
.case-reply-red .case-hl-key { color: var(--red); }
.case-step-dot { color: var(--copper-deep); font-weight: 800; font-size: 1.12em; margin-right: 2px; }
[data-theme='dark'] .case-step-dot { color: var(--primary); }
.case-vf { vertical-align: 1px; margin: 0 1px; }
.bubble.them.case-bubble { border-top-left-radius: 16px; border-bottom-left-radius: 6px; box-shadow: var(--shadow-sm); }
.case-reply { background: var(--bubble-us); border: 1px solid color-mix(in srgb, var(--copper) 28%, transparent); border-top-right-radius: 16px; border-bottom-right-radius: 6px; box-shadow: 0 12px 30px -18px rgba(142, 90, 49, .6); padding: 14px 18px; font-size: 15px; line-height: 1.75; width: 100%; }
.case-reply-label { display: inline-flex; align-items: center; gap: 5px; font-size: 12.5px; font-weight: 800; color: var(--copper-deep); margin-bottom: 6px; letter-spacing: .02em; }
[data-theme='dark'] .case-reply-label { color: var(--primary); }
.case-reply .actions { margin-top: 10px; align-items: center; gap: 10px; justify-content: flex-start; flex-wrap: wrap; }
.case-copy-main { height: 34px; padding: 0 14px; font-size: 13.5px; box-shadow: var(--shadow-sm); }
.case-reply-hint { font-size: 12.5px; color: var(--text-3); }
.case-reply-red { background: var(--red-soft); border-color: color-mix(in srgb, var(--red) 40%, transparent); box-shadow: none; }
.case-reply-red .case-reply-label { color: var(--red); }
.case-reply-backup { margin-top: 10px; padding: 10px 12px; border-radius: 10px; background: color-mix(in srgb, var(--surface) 85%, transparent); border: 1px dashed color-mix(in srgb, var(--red) 40%, transparent); }
.case-reply-backup .label { color: var(--red); font-size: 12.5px; }
.case-note { font-size: 13px; display: inline-flex; align-items: center; gap: 6px; white-space: normal; }
.case-note-red { color: var(--red); background: var(--red-soft); }
@media (max-width: 599px) {
  .case-msg { gap: 8px; }
  .case-msg-them { max-width: 94%; }
  .case-msg-us { max-width: 100%; }
  .case-msg-avatar.avatar { width: 30px; height: 30px; font-size: 12.5px; }
  .case-msg-avatar-us img { width: 19px; height: 19px; }
  .case-reply { padding: 11px 13px; font-size: 14.5px; }
}

/* 內部備忘（折疊）與索資可貼句 */
.case-memo { border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-sm); }
.case-memo summary { padding: 10px 14px; gap: 8px; }
.case-memo summary:hover { background: var(--surface-2); }
.case-memo-title { color: var(--text); }
.case-memo-count { height: 22px; padding: 0 8px; border-radius: 999px; background: var(--surface-3); color: var(--text-2); font-size: 12.5px; font-weight: 700; display: inline-grid; place-items: center; white-space: nowrap; }
.case-memo-hint { font-size: 12.5px; color: var(--text-3); font-weight: 500; white-space: nowrap; }
.case-memo-body { padding: 4px 14px 14px; }
.case-memo .case-memo-body { font-size: 14px; line-height: 1.7; }
.case-memo .case-memo-body .case-memo-list { padding-left: 0; list-style: none; display: flex; flex-direction: column; gap: 0; margin: 0; }
.case-memo .case-memo-list li.case-memo-item { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 4px 12px; align-items: start; padding: 9px 0; margin: 0; border-top: 1px dashed var(--border); line-height: 1.65; }
.case-memo .case-memo-list li.case-memo-item:first-child { border-top: 0; padding-top: 4px; }
.case-memo-chip { margin-top: 2px; white-space: nowrap; justify-self: start; }
.case-memo-text { font-size: 14px; line-height: 1.7; min-width: 0; }
.case-memo-text .case-hl { font-size: 14.5px; }
.case-memo-sep { display: inline-block; width: 1px; height: 12px; background: var(--border-strong); margin: 0 9px; vertical-align: -1px; }
@media (max-width: 599px) { .case-memo .case-memo-list li.case-memo-item { grid-template-columns: 1fr; gap: 4px; } }
.case-docpaths { margin-top: 12px; border-top: 1px solid var(--border); padding-top: 10px; }
.case-docpaths-title { display: flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 700; color: var(--text-2); margin-bottom: 6px; }
.case-docpaths-title .icon { color: var(--primary); }
.case-docpath { display: flex; align-items: flex-start; gap: 12px; padding: 12px 14px; margin-top: 8px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-2); }
.case-docpath-main { min-width: 0; flex: 1; display: flex; flex-direction: column; gap: 2px; }
.case-docpath .d { font-weight: 700; font-size: 13.5px; }
.case-docpath .w { color: var(--text-3); font-size: 12.5px; }
.case-docpath .p { color: var(--text); font-size: 14px; margin-top: 6px; grid-column: auto; line-height: 1.7; padding: 8px 12px; background: var(--surface); border-left: 3px solid var(--primary); border-radius: 0 8px 8px 0; }
.case-docpath-copy { flex: 0 0 auto; align-self: center; }

/* 執行中進度卡 */
.case-progress { padding: 12px 14px 10px; border-radius: var(--radius); box-shadow: var(--shadow-sm); border-color: color-mix(in srgb, var(--primary) 30%, var(--border)); }
.case-progress-head { gap: 10px; align-items: center; }
.case-progress-mark { width: 28px; height: 28px; border-radius: 8px; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; flex: 0 0 auto; }
.case-progress-failed { border-color: color-mix(in srgb, var(--red) 45%, transparent); }
.case-progress-failed .case-progress-mark { background: var(--red-soft); color: var(--red); }
.case-progress-titles { display: flex; flex-direction: column; min-width: 0; }
.case-progress-kind { font-weight: 700; font-size: 14px; color: var(--text); }
.case-progress .step { font-size: 13px; color: var(--text-2); white-space: normal; line-height: 1.5; }
.case-progress-bar { margin-top: 10px; }
.case-progress-error { margin-top: 8px; display: flex; gap: 6px; align-items: flex-start; padding: 8px 10px; border-radius: var(--radius-sm); background: var(--red-soft); color: var(--red); font-size: 13px; font-weight: 600; line-height: 1.45; word-break: break-word; }
.case-progress-error .icon { margin-top: 2px; }
.case-progress-log { margin-top: 8px; padding: 8px 10px; border-radius: var(--radius-sm); background: var(--surface-2); max-height: 150px; }

/* ---------- 4. 輸入列 ---------- */
.case-composer { padding: 10px 12px; gap: 8px; border-radius: 18px; border-color: color-mix(in srgb, var(--primary) 30%, var(--border-2)); box-shadow: 0 16px 40px -22px rgba(18, 17, 14, .5), 0 0 0 1px color-mix(in srgb, var(--primary) 8%, transparent); transition: box-shadow .15s, border-color .15s; }
.case-composer:focus-within { border-color: var(--primary); box-shadow: 0 16px 40px -22px rgba(18, 17, 14, .5), 0 0 0 3px var(--ring); }
/* 執行中：整塊維持不透明（避免底下的對話透出來），只淡化內容 */
.case-composer.disabled { opacity: 1; pointer-events: none; border-color: var(--border); }
.case-composer.disabled > * { opacity: .55; }
.case-composer.disabled .case-composer-text::placeholder { color: var(--primary); font-weight: 600; }
.case-composer-hint { display: flex; align-items: flex-start; gap: 8px; padding: 8px 10px; border-radius: var(--radius-sm); background: var(--primary-soft); color: var(--copper-deep); font-size: 13.5px; line-height: 1.55; }
[data-theme='dark'] .case-composer-hint { color: var(--primary); }
.case-composer-hint .icon { margin-top: 2px; }
.case-composer-hint-names { color: var(--text-2); word-break: break-all; }
.case-composer-text { min-height: 46px; font-size: 15px; padding: 8px 6px 4px; }
.case-composer-more { display: flex; flex-direction: column; gap: 6px; }
.case-ov { gap: 6px 14px; align-items: center; }
.case-ov-group { display: inline-flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.case-ov-label { font-size: 12.5px; font-weight: 700; color: var(--text-3); letter-spacing: .04em; padding-right: 8px; border-right: 2px solid var(--border-2); margin-right: 2px; line-height: 1; white-space: nowrap; }
.case-ov-chip { cursor: pointer; user-select: none; height: 26px; font-size: 12.5px; padding: 0 10px; transition: background .12s, color .12s, border-color .12s; }
.case-ov-chip:hover { border-color: var(--primary); color: var(--primary); }
.case-ov-chip.on { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }
.case-instruction { display: flex; align-items: center; gap: 8px; padding-top: 8px; }
.case-instruction .icon { color: var(--text-3); }
.case-instruction input { padding: 4px 2px; }
.case-tools { gap: 8px; padding-top: 2px; }
.case-model { width: auto; max-width: 220px; height: 31px; font-size: 13px; }
.case-more-toggle { display: none; gap: 4px; }
.case-model-slot { display: none; }
.case-more-count { min-width: 20px; height: 20px; padding: 0 6px; border-radius: 999px; background: var(--primary); color: var(--on-primary); font-size: 12.5px; font-weight: 700; display: inline-grid; place-items: center; }
.case-send { height: 40px; padding: 0 18px; border-radius: 12px; font-size: 14.5px; box-shadow: 0 8px 18px -10px rgba(142, 90, 49, .7); }
.case-pending:empty { display: none; }
.case-thumb-file { display: flex; flex-direction: column; align-items: center; gap: 2px; font-size: 12.5px; color: var(--text-2); padding: 4px; text-align: center; word-break: break-all; line-height: 1.2; }
.case-pending-note { align-self: center; font-size: 12.5px; color: var(--text-3); }
@media (max-width: 899px) {
  .case-composer { position: fixed; left: 8px; right: 8px; bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 8px); margin-top: 0; z-index: 25; padding: 8px 10px; border-radius: 16px; max-height: calc(100dvh - var(--topbar-h) - var(--tabbar-h) - 40px); overflow: auto; }
  .case-composer-more { display: none; }
  .case-composer.case-expanded .case-composer-more { display: flex; }
  .case-more-toggle { display: inline-flex; }
  .composer .case-ov { flex-direction: column; align-items: stretch; gap: 6px; }
  .case-ov-group { display: flex; flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; padding-bottom: 1px; -webkit-overflow-scrolling: touch; margin-right: -10px; padding-right: 10px; }
  .case-ov-group::-webkit-scrollbar { display: none; }
  .case-ov-label { flex: 0 0 auto; min-width: 30px; }
  .case-ov-chip { flex: 0 0 auto; }
  .case-model-slot { display: flex; align-items: center; gap: 8px; }
  .case-model-slot[hidden] { display: none; }
  .case-model-slot .case-model { max-width: none; flex: 1; }
  .case-send { padding: 0 14px; height: 38px; }
  .case-composer-text { min-height: 40px; padding-top: 6px; }
  .case-composer-hint { padding: 6px 8px; font-size: 12.5px; }
}

/* ---------- 側欄：現況／報價備忘／產出 ---------- */
.case-side-wrap { min-width: 0; }
.case-side-summary { display: none; }
.case-side-cards { display: flex; flex-direction: column; gap: 12px; }
.case-side .card + .card { margin-top: 0; }
.case-side-card { padding: 14px; box-shadow: var(--shadow-sm); }
.case-side-card .card-title h3 { font-size: 14.5px; }
.case-side-card .card-title h3 .icon { color: var(--primary); }
.case-side-conclusion { display: flex; flex-direction: column; gap: 2px; padding: 10px 12px; border-radius: var(--radius-sm); background: var(--primary-soft); margin-bottom: 10px; }
.case-side-conclusion.is-empty { background: var(--surface-2); }
.case-side-k { font-size: 12.5px; font-weight: 600; color: var(--text-3); letter-spacing: .03em; }
.case-side-v { font-weight: 700; font-size: 15px; line-height: 1.5; color: var(--text); }
.case-side-conclusion.is-empty .case-side-v { font-weight: 500; color: var(--text-3); }
.case-facts { gap: 10px 12px; font-size: 13px; }
.case-facts dt { font-size: 12.5px; font-weight: 600; color: var(--text-3); padding-top: 3px; }
.case-facts dd { font-size: 15px; font-weight: 700; color: var(--text); line-height: 1.5; }
.case-verif { gap: 6px; }
.case-side-fee { display: flex; flex-direction: column; gap: 2px; margin-bottom: 10px; }
.case-side-fee-v { font-size: 20px; font-weight: 800; letter-spacing: -0.01em; font-variant-numeric: tabular-nums; color: var(--copper-deep); }
[data-theme='dark'] .case-side-fee-v { color: var(--primary); }
.case-side-doc { gap: 10px; }
.case-side-doc > .icon:last-child { color: var(--text-3); }
.case-doc-k { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; flex: 0 0 auto; background: var(--copper-soft); color: var(--copper); }
.case-doc-k.copper { background: var(--copper-soft); color: var(--copper); }
.case-doc-k.teal { background: var(--teal-soft); color: var(--teal); }
.case-doc-k.blue { background: var(--blue-soft); color: var(--blue); }
.case-doc-k.purple { background: var(--purple-soft); color: var(--purple); }
.case-side-doc .case-doc-k { width: 30px; height: 30px; border-radius: 8px; }
@media (min-width: 1200px) { .case-side { top: calc(var(--topbar-h) + var(--case-tabs-h) + 14px); } }
@media (min-width: 900px) and (max-width: 1199px) {
  .case-side-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
}
@media (max-width: 899px) {
  .case-side { order: -1; }
  .case-side-wrap { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow-sm); overflow: hidden; }
  .case-side-summary { display: flex; align-items: center; gap: 8px; padding: 10px 12px; cursor: pointer; list-style: none; font-size: 13px; color: var(--text-2); }
  .case-side-summary::-webkit-details-marker { display: none; }
  .case-side-summary > .icon:first-child { color: var(--primary); }
  .case-side-summary-k { font-weight: 700; color: var(--text); white-space: nowrap; }
  .case-side-summary-text { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .case-side-summary .chev { color: var(--text-3); transition: transform .15s; }
  .case-side-wrap[open] .case-side-summary .chev { transform: rotate(180deg); }
  .case-side-wrap[open] .case-side-summary { border-bottom: 1px solid var(--border); }
  .case-side-cards { padding: 10px; gap: 10px; }
  .case-side-card { box-shadow: none; }
}

/* ---------- 5. 工作紀錄 ---------- */
.case-wl { max-width: 980px; margin: 0 auto; }
.case-wl-bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; }
.case-wl-actions { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.case-wl-sep { width: 1px; height: 22px; background: var(--border-2); margin: 0 4px; }
.case-wl-rev-n { margin-left: 2px; min-width: 20px; height: 20px; padding: 0 6px; border-radius: 999px; background: var(--surface-3); font-size: 12.5px; display: inline-grid; place-items: center; font-variant-numeric: tabular-nums; }
.btn.soft .case-wl-rev-n { background: var(--surface); }
.case-wl-stats { gap: 8px 14px; align-items: center; }
.case-wl-stat { display: inline-flex; align-items: center; gap: 5px; }
.case-wl-stat .icon { color: var(--text-3); }
.case-wl-stat-verif { gap: 4px; flex-wrap: wrap; }
.case-legacy .callout { font-size: 14px; }
.case-secnav { position: sticky; top: calc(var(--topbar-h) + var(--case-tabs-h)); z-index: 6; margin-top: 12px; padding: 8px 0; background: color-mix(in srgb, var(--bg) 94%, transparent); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); gap: 6px; }
.case-secnav .case-secnav-item { display: inline-flex; align-items: center; gap: 6px; height: 30px; padding: 0 11px 0 6px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); font-size: 12.5px; font-weight: 600; color: var(--text-2); transition: background .12s, color .12s, border-color .12s; }
.case-secnav .case-secnav-item:hover { border-color: var(--primary); color: var(--primary); text-decoration: none; }
.case-secnav .case-secnav-item.on { background: var(--ink); color: var(--paper); border-color: var(--ink); }
[data-theme='dark'] .case-secnav .case-secnav-item.on { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.case-secnav-no { width: 22px; height: 22px; border-radius: 50%; display: inline-grid; place-items: center; background: var(--surface-3); color: var(--text-2); font-size: 12.5px; font-weight: 800; }
.case-secnav-item.on .case-secnav-no { background: rgba(255, 255, 255, .22); color: inherit; }
[data-theme='dark'] .case-secnav-item.on .case-secnav-no { background: rgba(0, 0, 0, .15); }
.case-wl-doc { padding: 22px 26px 28px; box-shadow: var(--shadow-sm); }
.case-wl-doc h2 { scroll-margin-top: calc(var(--topbar-h) + var(--case-tabs-h) + 58px); }
.case-wl-doc.md h1 { font-size: 21px; padding-bottom: 10px; margin-bottom: 10px; border-bottom: 2px solid var(--primary); display: inline-block; }
.case-wl-doc.md h2 { font-size: 17.5px; margin: 44px 0 16px; padding: 22px 0 12px; position: relative; }
.case-wl-doc.md h2::after { content: ''; position: absolute; left: 14px; bottom: 0; width: 44px; height: 3px; border-radius: 2px; background: var(--primary); }
.case-wl-doc.md h2:first-of-type { margin-top: 20px; }
.case-wl-doc.md h3 { margin-top: 24px; }
.case-wl-doc.md p { margin: 12px 0; line-height: 1.8; }
.case-wl-doc.md li { margin: 8px 0; line-height: 1.75; }
.case-wl-doc.md ul, .case-wl-doc.md ol { margin: 12px 0; }
.case-wl-doc .md-table { margin: 16px 0 24px; }
.case-wl-doc .md-table th, .case-wl-doc .md-table td { padding: 10px 12px; line-height: 1.6; }
.case-wl-doc .md-table td .chip { vertical-align: 1px; }
.case-wl-doc.md li.case-wl-kv { list-style: none; margin: 6px 0 6px -22px; padding: 10px 14px; border-radius: 10px; background: var(--primary-soft); display: flex; gap: 12px; align-items: baseline; }
.case-wl-doc.md li.case-wl-kv + li.case-wl-kv { margin-top: 6px; }
.case-wl-k { flex: 0 0 auto; font-size: 12.5px; font-weight: 600; color: var(--text-3); letter-spacing: .02em; min-width: 3em; }
.case-wl-v { font-weight: 700; font-size: 15px; color: var(--text); line-height: 1.6; }
.case-wl-v strong { background: none; padding: 0; }
[data-theme='dark'] .case-wl-doc.md li.case-wl-kv { background: var(--copper-soft); }
.case-wl-editor-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.case-wl-editor-head .bold { display: inline-flex; align-items: center; gap: 6px; }
.case-wl-editor-foot { position: sticky; bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom) + 8px); background: var(--bg); padding: 8px 0; z-index: 5; }
@media (min-width: 900px) { .case-wl-editor-foot { bottom: 0; } }
@media (max-width: 899px) {
  .case-info-form .card-title { flex-wrap: wrap; }
  .case-wl-doc { padding: 16px 14px 20px; }
  .case-wl-act-label { display: none; }
  .case-wl-actions .btn { padding: 0 9px; }
  .case-secnav { margin-top: 10px; }
}

/* ---------- 6. 檔案 ---------- */
.case-upload { display: flex; align-items: center; gap: 16px; padding: 16px 18px; border: 2px dashed var(--border-2); border-radius: var(--radius-lg); background: var(--surface); transition: border-color .15s, background .15s; }
.case-upload-over { border-color: var(--primary); background: var(--primary-soft); }
.case-upload-busy { opacity: .6; pointer-events: none; }
.case-upload-icon { width: 48px; height: 48px; border-radius: 14px; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; flex: 0 0 auto; }
.case-upload-icon .icon { width: 24px; height: 24px; }
.case-upload-main { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.case-upload-title { font-weight: 700; font-size: 15px; }
.case-upload-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.case-upload-note { font-size: 13px; color: var(--text-2); line-height: 1.6; max-width: 80ch; }
.case-files-head { display: flex; align-items: center; gap: 10px; margin-top: 18px; }
.case-files-head h2 { font-size: 16px; }
.case-files-sub { display: inline-flex; gap: 6px; }
.case-file-grid { grid-template-columns: repeat(auto-fill, minmax(168px, 1fr)); gap: 12px; }
.case-file { border-radius: var(--radius); box-shadow: var(--shadow-sm); transition: transform .15s, box-shadow .15s, border-color .15s; }
.case-file:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: var(--border-2); }
.case-file:focus-visible { outline: 2px solid var(--ring); outline-offset: 2px; }
.case-file-pv { position: relative; height: 124px; background: var(--surface-2); }
.case-file-type { display: flex; flex-direction: column; align-items: center; gap: 4px; color: var(--text-3); font-size: 12.5px; font-weight: 700; letter-spacing: .05em; }
.case-file-type .icon { width: 30px; height: 30px; }
.case-file-ribbon { position: absolute; top: 8px; left: 8px; height: 22px; padding: 0 8px; border-radius: 6px; background: var(--copper); color: #fff; font-size: 12.5px; font-weight: 700; display: inline-grid; place-items: center; box-shadow: var(--shadow-sm); }
.case-file-info { padding: 9px 10px 10px; display: flex; flex-direction: column; gap: 5px; }
.case-file .nm { padding: 0; font-size: 13px; }
.case-file .st { padding: 0; flex-wrap: wrap; row-gap: 3px; }
.case-file-round { color: var(--text-3); }
@media (max-width: 599px) {
  .case-upload { gap: 12px; padding: 12px 14px; align-items: flex-start; }
  .case-upload-icon { width: 36px; height: 36px; border-radius: 10px; }
  .case-upload-icon .icon { width: 18px; height: 18px; }
  .case-upload-title { font-size: 14px; }
  .case-upload-note { font-size: 12.5px; }
  .case-file-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .case-file-pv { height: 110px; }
}

/* ---------- 7. 產出 ---------- */
.case-gen-head { display: flex; flex-direction: column; gap: 4px; margin-bottom: 10px; }
.case-gen-head h2 { display: flex; align-items: center; gap: 6px; font-size: 16px; }
.case-gen-head h2 .icon { color: var(--primary); }
.case-gen-grid { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 10px; }
.case-gen-btn { gap: 12px; align-items: center; padding: 12px; border-radius: var(--radius); box-shadow: var(--shadow-sm); transition: transform .15s, box-shadow .15s, border-color .15s, background .15s; }
.case-gen-btn:hover:not(:disabled) { transform: translateY(-1px); box-shadow: var(--shadow); }
.case-gen-btn:disabled { opacity: .55; cursor: not-allowed; }
.case-gen-btn .case-doc-k { width: 40px; height: 40px; }
.case-gen-btn .case-doc-k .icon, .case-gen-btn:hover .case-doc-k .icon { width: 20px; height: 20px; padding: 0; margin: 0; background: transparent; color: inherit; }
.case-gen-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; flex: 1; }
.case-gen-text b { font-size: 14px; }
.case-gen-text span { font-size: 12.5px; color: var(--text-2); line-height: 1.45; }
.doc-action .case-gen-prior { color: var(--primary); font-weight: 600; }
.case-gen-arrow-wrap { display: inline-grid; place-items: center; width: 24px; height: 24px; color: var(--text-3); flex: 0 0 auto; transition: color .15s, transform .15s; }
.case-gen-btn:hover:not(:disabled) .case-gen-arrow-wrap { color: var(--primary); transform: translateX(2px); }
.doc-action .case-gen-arrow { color: inherit; margin: 0; width: 16px; height: 16px; padding: 0; background: transparent; }
.case-doc-list .card-title h2 { display: flex; align-items: center; gap: 6px; font-size: 16px; }
.case-doc-list .card-title h2 .icon { color: var(--primary); }
.case-doc { padding: 12px 0; gap: 12px; grid-template-columns: 40px minmax(0, 1fr) auto; }
.case-doc .case-doc-k { width: 40px; height: 40px; }
.case-doc-main { min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.case-doc .t { font-size: 14.5px; }
.case-doc-meta { display: flex; align-items: center; gap: 6px 10px; flex-wrap: wrap; font-size: 12.5px; color: var(--text-3); }
.case-doc-ver { font-weight: 700; color: var(--text-2); font-variant-numeric: tabular-nums; }
.case-doc-noshare { color: var(--text-3); }
.case-doc-actions { gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.case-doc-actions .btn { height: 30px; padding: 0 10px; font-size: 12.5px; border-radius: 7px; gap: 4px; }
.case-doc-actions .btn.icon-btn { width: 30px; padding: 0; }
.case-doc-actions .case-doc-del { color: var(--text-3); border-color: var(--border); }
.case-doc-actions .case-doc-del:hover { color: var(--red); border-color: color-mix(in srgb, var(--red) 40%, transparent); background: var(--red-soft); }
@media (max-width: 599px) {
  .case-doc { grid-template-columns: 36px minmax(0, 1fr); }
  .case-doc .case-doc-k { width: 36px; height: 36px; }
  .case-doc-actions { grid-column: 1 / -1; justify-content: flex-start; padding-left: 48px; }
}

/* ---------- 8. 資訊 ---------- */
.case-info { gap: 16px; align-items: start; }
.case-info .card-title h2 { display: flex; align-items: center; gap: 6px; }
.case-info .card-title h2 .icon { color: var(--primary); }
.case-fieldset { border: 0; margin: 0; padding: 14px 0 4px; min-width: 0; border-top: 1px solid var(--border); }
.case-fieldset:first-of-type { border-top: 0; padding-top: 2px; }
.case-fieldset legend { float: left; width: 100%; padding: 0; margin-bottom: 10px; font-size: 12.5px; font-weight: 800; color: var(--text-2); letter-spacing: .04em; display: flex; align-items: center; gap: 6px; }
.case-fieldset legend::before { content: ''; width: 8px; height: 8px; border-radius: 2px; background: var(--primary); }
.case-fieldset .form-grid { clear: both; }
.case-toggles { gap: 10px; padding-top: 4px; }
.case-form-foot { border-top: 1px solid var(--border); padding-top: 14px; }
.case-pricing-facts dd.case-pricing-main { font-weight: 800; font-size: 16px; color: var(--copper-deep); }
[data-theme='dark'] .case-pricing-facts dd.case-pricing-main { color: var(--primary); }
.case-pricing-form { gap: 8px; }
#pricing-form .select { width: 120px; height: 34px; font-size: 13.5px; }
#pricing-form .input { width: 160px; height: 34px; font-size: 13.5px; }
.case-runs-table { font-size: 13px; }
.case-runs-id { color: var(--text-3); font-variant-numeric: tabular-nums; }
.case-runs-model { max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.case-runs-err { color: var(--red); margin-top: 3px; max-width: 220px; }
.case-danger { border-color: color-mix(in srgb, var(--red) 35%, var(--border)); background: color-mix(in srgb, var(--red-soft) 40%, var(--surface)); }
.case-info .case-danger .card-title h2 .icon { color: var(--red); }
.case-danger-actions { gap: 8px; }

/* ---------- 9. 新客人 ---------- */
.case-new { padding-top: 14px; }
.case-steps { display: flex; align-items: center; margin: 0 0 18px; padding: 0 4px; list-style: none; }
.case-step { display: flex; align-items: center; gap: 8px; flex: 1; min-width: 0; color: var(--text-3); font-size: 13px; font-weight: 600; }
.case-step:last-child { flex: 0 0 auto; }
.case-step:not(:last-child)::after { content: ''; flex: 1; height: 2px; background: var(--border-2); margin: 0 10px; border-radius: 2px; }
.case-step-no { width: 28px; height: 28px; border-radius: 50%; display: inline-grid; place-items: center; background: var(--surface-3); color: var(--text-2); font-weight: 800; font-size: 13px; flex: 0 0 auto; border: 2px solid transparent; transition: background .15s, color .15s; }
.case-step.on { color: var(--text); }
.case-step.on .case-step-no { background: var(--primary); color: var(--on-primary); }
.case-step.done .case-step-no { background: var(--green-soft); color: var(--green); border-color: var(--green); }
.case-step.done:not(:last-child)::after { background: var(--green); }
.case-step-label { white-space: nowrap; }
.case-step-card { padding: 18px; box-shadow: var(--shadow-sm); }
.case-step-card .card-title h2 { display: flex; align-items: center; gap: 10px; }
.case-step-card .textarea[name='customer_text'] { min-height: 150px; font-size: 15px; }
.case-step-badge { width: 26px; height: 26px; border-radius: 8px; display: inline-grid; place-items: center; background: var(--primary); color: var(--on-primary); font-size: 13px; font-weight: 800; flex: 0 0 auto; }
.case-nf-note { margin-left: auto; }
.case-nf-pending:empty { display: none; }
.case-nf-details { padding: 14px 18px; }
.case-nf-summary { list-style: none; display: flex; align-items: center; gap: 8px; cursor: pointer; }
.case-nf-summary::-webkit-details-marker { display: none; }
.case-nf-summary .chev { transition: transform .15s; color: var(--text-3); }
.case-nf-details[open] .case-nf-summary .chev { transform: rotate(180deg); }
.case-nf-submit { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; padding: 14px 18px; border-radius: var(--radius-lg); background: var(--surface); border: 1px solid color-mix(in srgb, var(--primary) 30%, var(--border)); box-shadow: var(--shadow-card); }
.case-nf-submit-note { flex-basis: 100%; padding-left: 38px; }
@media (max-width: 599px) {
  .case-step-label { display: none; }
  .case-step.on .case-step-label { display: inline; }
  .case-nf-submit { padding: 12px 14px; gap: 10px; }
  .case-nf-submit .btn.lg { flex: 1 1 auto; padding: 0 12px; }
  .case-nf-submit-note { padding-left: 0; }
  .case-nf-note { margin-left: 0; flex-basis: 100%; }
}

/* ---------- 10. 版面容器與小型狀態 class（讓每個 JS 用到的 class 都有對應樣式） ---------- */
.case-tab-body { min-width: 0; }
.case-page-red .case-hero-avatar.avatar.lg { box-shadow: 0 0 0 3px var(--red-soft); }
.case-round { scroll-margin-top: calc(var(--topbar-h) + var(--case-tabs-h) + 12px); }
.case-msg-time { font-variant-numeric: tabular-nums; white-space: nowrap; }
.case-redbar-backup-text { font-size: 13.5px; line-height: 1.5; }
.case-progress-live { border-color: color-mix(in srgb, var(--primary) 45%, var(--border)); }
.case-composer-hint-text { min-width: 0; line-height: 1.45; }
.case-thumb { box-shadow: var(--shadow-xs); }
.case-side-docs { margin: 0 -4px; }
.case-wl-editor { margin-top: 12px; }
.case-secnav-name { white-space: nowrap; }
.case-files, .case-docs { display: flex; flex-direction: column; min-width: 0; }
.case-file-fresh { border-color: color-mix(in srgb, var(--copper) 45%, var(--border)); }
.case-gen { margin-bottom: 4px; }
.case-doc-items { margin-top: 2px; }
.case-doc-act-label { display: inline; }
.case-pricing .card-title { align-items: flex-start; }
.case-runs .card-title { margin-bottom: 8px; }
.case-runs-wrap { border: 1px solid var(--border); border-radius: var(--radius-sm); }
.case-nf-attach { align-items: center; }
.case-nf-attach-item { max-width: 100%; }

/* ---------- 11. 可讀性鐵則：說明文字、標籤／數值、檔案資訊 ---------- */
.case-help { display: flex; gap: 8px; align-items: flex-start; margin: 0; font-size: 13.5px; line-height: 1.65; color: var(--text-2); max-width: 80ch; }
.case-help > .icon { flex: 0 0 auto; margin-top: 3px; color: var(--text-3); }
.case-help > span { min-width: 0; }
.case-help code { font-size: 12.5px; }
.case-help + .case-help { margin-top: 6px; }
.case-card-meta { font-size: 13px; color: var(--text-3); line-height: 1.5; text-align: right; }
.case-gen-desc { margin: 2px 0 0; font-size: 13.5px; line-height: 1.65; color: var(--text-2); max-width: 80ch; }
.case-side-empty { margin: 0; font-size: 13.5px; line-height: 1.65; color: var(--text-2); }
.case-file-meta { display: flex; flex-wrap: wrap; gap: 10px 20px; font-size: 14px; line-height: 1.5; }
.case-file-meta-item { display: inline-flex; align-items: center; gap: 6px; }
.case-file-meta-k { font-size: 12.5px; font-weight: 600; color: var(--text-3); }
.case-transcript { font-size: 14px; line-height: 1.75; padding: 12px 14px; }

/* ---------- 動效：尊重減少動態 ---------- */
@media (prefers-reduced-motion: reduce) {
  .case-progress-bar > span { animation: none; width: 100%; opacity: .5; }
  .case-file:hover, .case-gen-btn:hover:not(:disabled) { transform: none; }
  .case-tab, .case-ov-chip, .case-secnav-item, .case-file, .case-gen-btn, .case-composer { transition: none; }
}