/* Content Duplication landing: hero, scan workspace, page picker, supporting guide */

.duplication-hero, .duplication-workspace { width: min(980px, calc(100% - 64px)); margin-inline: auto; }
.duplication-hero { padding-block: clamp(40px, 6vw, 72px) 32px; text-align: center; display: grid; justify-items: center; gap: 18px; }
.duplication-hero h1 { max-width: 18ch; font-size: clamp(34px, 5vw, 58px); line-height: 1.06; letter-spacing: -.04em; }
.duplication-hero p:not(.eyebrow) { max-width: 62ch; color: var(--text-2); font-size: clamp(16px, 1.5vw, 18.5px); line-height: 1.7; }

/* ---------- Workspace card ---------- */
.duplication-form {
    position: relative;
    padding: clamp(20px, 3vw, 32px);
    border: 1px solid var(--border);
    border-radius: 24px;
    background:
        radial-gradient(520px 200px at 100% 0%, rgba(66, 213, 200, .13), transparent 70%),
        radial-gradient(420px 180px at 0% 0%, rgba(155, 239, 69, .12), transparent 70%),
        var(--surface);
    box-shadow: var(--shadow-lg);
}
.workflow-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 0 0 26px; padding: 0; list-style: none; }
.workflow-steps li { display: flex; align-items: center; gap: 10px; min-width: 0; padding: 10px 14px; color: var(--text-3); border: 1px solid var(--border); border-radius: 12px; background: var(--surface-2); font-size: 14px; font-weight: 700; transition: background .2s, border-color .2s, color .2s; }
.workflow-index { width: 26px; height: 26px; flex: 0 0 auto; display: grid; place-items: center; color: var(--text-3); border-radius: 50%; background: var(--surface-3); font: 800 12px/1 var(--font-display); }
.workflow-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.workflow-steps li[data-step="scan"] { color: var(--forest-900); border-color: var(--forest-600); background: var(--mint-50); }
.workflow-steps li[data-step="scan"] .workflow-index { color: var(--forest-950); background: var(--lime-400); }
.duplication-form:has([data-discovery-results]:not([hidden])) .workflow-steps li[data-step="scan"] { color: var(--success-text); border-color: var(--success-line); background: var(--success-bg); }
.duplication-form:has([data-discovery-results]:not([hidden])) .workflow-steps li[data-step="scan"] .workflow-index { color: #fff; background: var(--success); font-size: 0; }
.duplication-form:has([data-discovery-results]:not([hidden])) .workflow-steps li[data-step="scan"] .workflow-index::before { content: "✓"; font-size: 13px; }
.duplication-form:has([data-discovery-results]:not([hidden])) .workflow-steps li[data-step="select"] { color: var(--forest-900); border-color: var(--forest-600); background: var(--mint-50); }
.duplication-form:has([data-discovery-results]:not([hidden])) .workflow-steps li[data-step="select"] .workflow-index { color: var(--forest-950); background: var(--lime-400); }

.input-method { display: block; }
.input-method > article { display: grid; gap: 18px; }

/* ---------- Scan progress (driven by app.js classes: running / busy / complete / warning / error) ---------- */
.scan-progress {
    display: grid;
    gap: 16px;
    padding: 18px 20px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--surface-2);
}
.scan-progress.running { border-color: var(--info-line); background: var(--info-bg); }
.scan-progress.complete { border-color: var(--success-line); background: var(--success-bg); }
.scan-progress.warning { border-color: var(--warning-line); background: var(--warning-bg); }
.scan-progress.error { border-color: var(--danger-line); background: var(--danger-bg); }
.scan-progress-copy { display: flex; align-items: flex-start; gap: 14px; }
.scan-progress-copy p { display: grid; gap: 2px; margin: 0; min-width: 0; }
.scan-progress-copy strong { font-size: 16px; font-weight: 750; }
.scan-progress-copy small { color: var(--text-2); font-size: 14px; line-height: 1.55; }
.scan-progress-icon { width: 34px; height: 34px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 50%; background: var(--surface-3); color: var(--text-2); font-weight: 800; }
.scan-progress.running .scan-progress-icon { border: 3px solid rgba(61, 143, 196, .25); border-top-color: var(--info); background: transparent; animation: spin .8s linear infinite; }
.scan-progress.complete .scan-progress-icon { color: #fff; background: var(--success); }
.scan-progress.complete .scan-progress-icon::before { content: "✓"; }
.scan-progress.warning .scan-progress-icon { color: #fff; background: var(--warning); }
.scan-progress.warning .scan-progress-icon::before { content: "!"; }
.scan-progress.error .scan-progress-icon { color: #fff; background: var(--danger); }
.scan-progress.error .scan-progress-icon::before { content: "!"; }
.scan-live { display: grid; gap: 10px; }
.scan-progress-counts, .scan-summary-counts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 0; }
.scan-progress-counts > div, .scan-summary-counts > div { padding: 12px 14px; border: 1px solid rgba(5, 46, 36, .08); border-radius: 12px; background: rgba(255, 255, 255, .75); }
.scan-progress-counts dt, .scan-summary-counts dt { color: var(--text-3); font-size: 12.5px; font-weight: 700; }
.scan-progress-counts dd, .scan-summary-counts dd { margin: 2px 0 0; font: 800 24px/1.2 var(--font-display); letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.scan-progress-note { color: var(--text-2); font-size: 13.5px; }
.scan-progress-track { display: none; height: 6px; border-radius: 99px; background: rgba(61, 143, 196, .18); overflow: hidden; }
.scan-progress.busy .scan-progress-track { display: block; }
.scan-progress-track span { display: block; width: 38%; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--teal-500), var(--forest-500)); animation: scan-slide 1.5s ease-in-out infinite; }
@keyframes scan-slide { 0% { transform: translateX(-110%); } 100% { transform: translateX(300%); } }
.scan-continuation { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; padding-top: 12px; border-top: 1px solid rgba(5, 46, 36, .1); }
.scan-continuation p { flex: 1 1 260px; margin: 0; color: var(--text-2); font-size: 14px; }
.scan-continue-actions { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 10px; }
.scan-continue-limit { display: grid; gap: 4px; color: var(--text-2); font-size: 12.5px; font-weight: 700; }
.scan-continue-limit[hidden] { display: none; }
.scan-continue-limit input { width: 130px; min-height: 42px; padding: 0 12px; border: 1px solid var(--border); border-radius: 10px; background: #fff; font: inherit; font-size: 15px; font-variant-numeric: tabular-nums; }

/* ---------- Page picker ---------- */
.scanned-pages { display: grid; gap: 16px; padding-top: 26px; border-top: 1px solid var(--border); outline: none; }
.scanned-pages-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; }
.scanned-pages-head h2 { margin-top: 10px; font-size: 26px; }
.scanned-pages-head p[data-inventory-summary] { margin-top: 4px; color: var(--text-3); font-size: 14px; }
.selection-count { flex: 0 0 auto; padding: 7px 14px; color: #fff; border-radius: 999px; background: var(--forest-800); font-size: 13px; font-weight: 750; font-variant-numeric: tabular-nums; }
.picker-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; }
.picker-search { position: relative; flex: 1 1 260px; min-width: 0; }
.picker-search .icon { position: absolute; left: 14px; top: 50%; color: var(--text-3); transform: translateY(-50%); pointer-events: none; }
.picker-search input { min-height: 42px; padding-left: 40px; border-radius: 12px; font-size: 14.5px; }
.picker-actions { display: flex; gap: 6px; }
.picker-note { flex: 1 1 100%; margin: 0; color: var(--text-3); font-size: 13px; font-weight: 600; }
.picker-note:empty { display: none; }
.scanned-pages { gap: 14px; }
.scanned-page-list { max-height: 460px; margin: 0; padding: 0; overflow: auto; list-style: none; border: 1px solid var(--border); border-radius: 16px; background: var(--surface); scrollbar-width: thin; }
.scanned-page { display: flex; align-items: center; gap: 12px; border-bottom: 1px solid var(--border); transition: background .12s; }
.scanned-page:last-child { border-bottom: 0; }
.scanned-page:hover { background: var(--surface-2); }
.scanned-page:has(input:checked) { background: var(--mint-50); box-shadow: inset 3px 0 0 var(--forest-500); }
.scanned-page-label { flex: 1 1 auto; min-width: 0; display: flex; align-items: center; gap: 14px; padding: 12px 6px 12px 16px; cursor: pointer; }
.scanned-page-identity { min-width: 0; display: grid; gap: 1px; }
.scanned-page-identity strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 14.5px; font-weight: 700; }
.scanned-page-identity small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text-3); font: 500 12.5px/1.5 var(--font-mono); }
.scanned-page-status { flex: 0 0 auto; padding-right: 16px; }
.page-state { display: inline-block; padding: 3px 10px; color: var(--text-3); border: 1px solid var(--border-strong); border-radius: 999px; background: var(--surface-2); font-size: 12px; font-weight: 700; white-space: nowrap; }
.page-state.ready { color: var(--success-text); border-color: var(--success-line); background: var(--success-bg); }
.page-state.blocked { color: var(--warning-text); border-color: var(--warning-line); background: var(--warning-bg); }
.page-state.failed { color: var(--danger-text); border-color: var(--danger-line); background: var(--danger-bg); }
.scanned-page.unavailable { background: var(--surface-2); }
.scanned-page.unavailable .scanned-page-label { cursor: not-allowed; opacity: .62; }
.scanned-page.unavailable input { cursor: not-allowed; }
.inventory-empty { padding: 32px 24px; text-align: center; border: 1.5px dashed var(--border-strong); border-radius: 16px; background: var(--surface-2); }
.inventory-empty strong { display: block; font-size: 16px; }
.inventory-empty p { margin-top: 4px; color: var(--text-3); font-size: 14px; }
.input-action-row {
    position: sticky;
    bottom: 12px;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 14px 12px 18px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: rgba(255, 255, 255, .92);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
}
.input-action-row small { color: var(--text-3); font-size: 13.5px; font-weight: 600; }
.input-action-row .btn { min-height: 50px; }

.workspace-reassurance { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 28px; margin: 22px 0 0; padding: 0; list-style: none; color: var(--text-3); font-size: 13.5px; font-weight: 650; }
.workspace-reassurance li { display: inline-flex; align-items: center; gap: 8px; }
.workspace-reassurance .icon { color: var(--forest-600); }

/* ---------- Supporting guide ---------- */
.duplication-guide { display: grid; gap: clamp(56px, 7vw, 88px); margin-top: clamp(64px, 8vw, 104px); }
.guide-head { display: grid; gap: 10px; margin-bottom: 26px; }
.duplication-guide h2 { font-size: clamp(26px, 3vw, 34px); letter-spacing: -.03em; }
.duplication-guide h3 { font-size: 18px; letter-spacing: -.02em; }
.duplication-guide p { color: var(--text-2); line-height: 1.7; }
.guide-head p { max-width: 62ch; font-size: 16.5px; }

.guide-why { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: clamp(28px, 5vw, 64px); align-items: start; padding: clamp(24px, 4vw, 44px); border: 1px solid var(--border); border-radius: var(--radius-xl); background: var(--surface); box-shadow: var(--shadow); }
.guide-why-copy { display: grid; gap: 16px; }
.duplication-guide-link { display: inline-flex; align-items: center; gap: 6px; width: fit-content; color: var(--link); font-weight: 700; text-decoration: none; }
.duplication-guide-link:hover { text-decoration: underline; text-underline-offset: 3px; }
.duplication-benefits { display: grid; gap: 14px; margin: 0; padding: 0; list-style: none; }
.duplication-benefits li { display: flex; gap: 16px; padding: 18px; border: 1px solid var(--border); border-radius: 16px; background: var(--surface-2); color: var(--text-2); font-size: 15px; line-height: 1.65; }
.duplication-benefits strong { color: var(--text); }

.duplication-steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; margin: 0; padding: 0; list-style: none; }
.duplication-steps li { position: relative; padding: 24px; border: 1px solid var(--border); border-radius: 18px; background: var(--surface); }
.step-number { width: 36px; height: 36px; display: grid; place-items: center; color: var(--forest-950); border-radius: 11px; background: var(--lime-400); font: 800 15px/1 var(--font-display); }
.duplication-steps h3 { margin-top: 18px; }
.duplication-steps p { margin-top: 8px; font-size: 14.5px; }
.duplication-steps strong { color: var(--text); }
.duplication-example { padding: 1px 6px; overflow-wrap: anywhere; color: var(--forest-800); border-radius: 6px; background: var(--mint-100); font: 600 .84em/1.6 var(--font-mono); -webkit-box-decoration-break: clone; box-decoration-break: clone; }

.duplication-feature-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.duplication-feature-grid article { padding: 24px; border: 1px solid var(--border); border-radius: 18px; background: var(--surface); transition: transform .2s, box-shadow .2s, border-color .2s; }
.duplication-feature-grid article:hover { transform: translateY(-2px); border-color: var(--mint-300); box-shadow: var(--shadow); }
.duplication-feature-grid h3 { margin-top: 18px; }
.duplication-feature-grid p { margin-top: 8px; font-size: 14.5px; }

.duplication-faq-list { display: grid; gap: 10px; max-width: 860px; }
.duplication-faq-list details { border: 1px solid var(--border); border-radius: 16px; background: var(--surface); transition: border-color .15s, box-shadow .15s; }
.duplication-faq-list details[open] { border-color: var(--mint-300); box-shadow: var(--shadow); }
.duplication-faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 22px; cursor: pointer; list-style: none; }
.duplication-faq-list summary::-webkit-details-marker { display: none; }
.duplication-faq-list summary h3 { font-size: 16.5px; font-family: var(--font-ui); font-weight: 700; letter-spacing: 0; }
.faq-chevron { width: 20px; height: 20px; color: var(--forest-600); transition: transform .2s; }
.duplication-faq-list details[open] .faq-chevron { transform: rotate(45deg); }
.duplication-faq-answer { padding: 0 22px 20px; color: var(--text-2); line-height: 1.7; }
.duplication-faq-answer ol { display: grid; gap: 8px; margin: 12px 0 0; padding-left: 22px; }

@media (max-width: 960px) {
    .guide-why { grid-template-columns: 1fr; }
    .duplication-steps, .duplication-feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
    .duplication-hero, .duplication-workspace { width: min(980px, calc(100% - 32px)); }
    .duplication-form { padding: 16px; border-radius: 20px; }
    .workflow-steps { grid-template-columns: 1fr; gap: 6px; }
    .workflow-steps li { padding: 8px 12px; }
    .scan-progress-counts, .scan-summary-counts { grid-template-columns: 1fr; }
    .scanned-pages-head { align-items: flex-start; flex-direction: column; gap: 10px; }
    .scanned-page-status { display: none; }
    .input-action-row { flex-direction: column; align-items: stretch; text-align: center; }
    .duplication-steps, .duplication-feature-grid { grid-template-columns: 1fr; }
}