:root { --content: 1040px; }
body { font-size: 14px; line-height: 1.45; }
h1 { margin: 0 0 6px; font-size: clamp(1.65rem, 3vw, 2rem); }
h2 { margin: 0 0 6px; font-size: 1rem; line-height: 1.3; letter-spacing: -.015em; }
.site-header { min-height: 54px; }
.breadcrumbs { padding-block: 12px 6px; }
.tool-hero { padding-block: 12px 16px; border-bottom: 1px solid var(--border); }
.lede { margin: 0 0 6px; font-size: .9rem; }
.privacy-note { margin: 0; color: var(--accent-strong); font-size: .8rem; }
.tool-section { padding-block: 16px; border-bottom: 1px solid var(--border); }
.field-help { margin: 6px 0 10px; color: var(--muted); font-size: .8rem; }
.source-grid { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.source-picker { display: flex; min-width: 0; max-width: 100%; align-items: center; gap: 8px; padding: 4px 6px; border: 1px solid var(--border); border-radius: 5px; background: var(--surface); }
.source-icon { display: inline-block; width: 24px; height: 24px; flex: 0 0 auto; object-fit: contain; vertical-align: middle; }
.source-name { display: inline-flex; align-items: center; gap: 7px; flex: 0 0 auto; font-size: .8rem; font-weight: 750; }
.source-files { min-width: 0; max-width: 210px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); font-size: .75rem; }
.source-files:empty { display: none; }
.source-choose { flex: 0 0 auto; margin-left: auto; min-height: 30px; padding: 4px 8px; border: 1px solid var(--border-strong); border-radius: 4px; background: var(--surface-raised); color: var(--text); font-size: .75rem; }
button { font-family: inherit; cursor: pointer; }
button:disabled { opacity: .45; cursor: not-allowed; }
button:focus-visible, input:focus-visible { outline: 2px solid var(--accent-strong); outline-offset: 3px; }
.actions { display: flex; flex-wrap: wrap; gap: 6px; }
.actions .button { min-height: 36px; padding: 6px 12px; font-size: .8rem; }
.actions #reset { margin-left: auto; }
.tool-status { margin: 10px 0 0; padding: 8px 10px; border: 1px solid var(--border); border-radius: 5px; background: var(--surface); font-size: .85rem; overflow-wrap: anywhere; }
.tool-status[data-state="error"], .tool-status[data-status="error"] { border-color: var(--warning); color: var(--warning); }
#summary { margin: 8px 0 0; font-size: .8rem; font-weight: 700; overflow-wrap: anywhere; }
.file-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px 16px; margin: 8px 0 0; padding: 0; color: var(--muted); font-size: .75rem; list-style: none; overflow-wrap: anywhere; }
.file-list > li { display: flex; align-items: flex-start; gap: 8px; }
.file-list strong { display: inline-flex; align-items: center; gap: 6px; flex: 0 0 auto; }
.file-list .source-icon { width: 18px; height: 18px; }
.file-list ul { min-width: 0; margin: 0; padding: 0; list-style: none; }
.file-list:empty, #summary:empty, #conflicts:empty, .review-section:has(#conflicts:empty) { display: none; }
#conflicts { display: grid; gap: 12px; margin-top: 10px; }
#conflicts fieldset { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; min-width: 0; margin: 0; padding: 10px; border: 1px solid var(--border-strong); border-radius: 5px; background: var(--surface); }
#conflicts legend { max-width: 100%; padding-inline: 5px; color: var(--accent-strong); font-size: .85rem; font-weight: 750; overflow-wrap: anywhere; }
#conflicts fieldset > p { grid-column: 1 / -1; margin: 0 0 4px; color: var(--muted); font-size: .8rem; }
#conflicts .candidate { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-content: start; gap: 4px 8px; min-width: 0; padding: 8px 10px; border: 1px solid var(--border); border-radius: 4px; background: var(--surface-raised); }
#conflicts .candidate:has(input:checked) { border-color: var(--accent); background: var(--accent-surface); }
#conflicts .candidate label { display: flex; align-items: center; gap: 8px; min-height: 32px; font-size: .8rem; font-weight: 750; }
#conflicts input[type="radio"] { flex: 0 0 auto; margin: 0; accent-color: var(--accent); }
#conflicts .candidate-sources { grid-column: 1 / -1; grid-row: 2; margin: 0; padding-left: 0; color: var(--muted); font-size: .75rem; list-style: none; overflow-wrap: anywhere; }
#conflicts .candidate-sources li { display: flex; align-items: flex-start; gap: 6px; }
#conflicts .candidate-sources .source-icon { width: 16px; height: 16px; margin-top: 1px; }
#conflicts button { grid-column: 2; grid-row: 1; min-height: 32px; padding: 4px 8px; border: 1px solid var(--border-strong); border-radius: 4px; background: var(--surface); color: var(--text); font-size: .75rem; }
#conflicts .candidate-password { grid-column: 1 / -1; display: block; margin-top: 2px; padding: 6px 8px; border: 1px solid var(--border-strong); border-radius: 4px; background: var(--bg); color: var(--accent-strong); overflow-wrap: anywhere; white-space: pre-wrap; }
.tool-warning { margin: 10px 0 0; color: var(--muted); font-size: .75rem; }
.tool-warning strong { color: var(--warning); }
.guide-section { padding-block: 0; }
.guide-section > summary { padding-block: 12px; cursor: pointer; }
.guide-section > summary h2 { display: inline; margin: 0; font-size: .85rem; }
.guide-section > summary .source-icon { width: 20px; height: 20px; margin-right: 7px; }
.guide-section[open] { padding-bottom: 12px; }
.guide-section > p, .guide-section > ol, .limit-list { margin-block: 8px; font-size: .85rem; }
.limit-list { padding-left: 20px; color: var(--muted); }
.guide-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
.guide-grid details { min-width: 0; border: 1px solid var(--border); border-radius: 5px; background: var(--surface); }
.guide-grid summary { padding: 8px 10px; font-size: .8rem; font-weight: 750; cursor: pointer; }
.guide-grid summary .source-icon { width: 20px; height: 20px; margin-right: 7px; }
.guide-grid details[open] summary { border-bottom: 1px solid var(--border); }
.guide-grid ol { margin: 10px; padding-left: 18px; font-size: .85rem; }
.guide-grid li + li, .prerequisites li + li, #apple-reset-steps li + li { margin-top: 4px; }
.guide-grid p { margin: 10px; color: var(--muted); font-size: .85rem; }
.guide-grid details > a { display: inline-block; margin: 0 10px 10px; font-size: .8rem; }
.acknowledgement { display: flex; align-items: flex-start; gap: 8px; padding: 10px; border: 1px solid var(--warning); border-radius: 5px; background: var(--warning-surface); font-size: .85rem; }
.acknowledgement input { flex: 0 0 auto; margin-top: 4px; accent-color: var(--warning); }
#apple-reset-steps { margin-top: 12px; padding: 12px; border: 1px solid var(--warning); border-radius: 5px; background: var(--surface); font-size: .85rem; }
.site-footer { min-height: 64px; padding-block: 16px; gap: 12px; font-size: .75rem; }
[hidden] { display: none !important; }
@media (max-width: 680px) {
  .site-header { flex-direction: row; align-items: center; gap: 8px; }
  .site-brand { gap: 6px; font-size: .75rem; }
  .site-nav { width: auto; gap: 10px; }
  .site-nav a { font-size: .7rem; }
  .site-nav a:first-child { display: none; }
  .file-list, #conflicts fieldset { grid-template-columns: 1fr; }
  .actions #reset { margin-left: 0; }
  .guide-grid { grid-template-columns: 1fr; }
  .site-footer { gap: 8px; }
}