:root {
  --bg: #F6F7F9;
  --paper: #FFFFFF;
  --ink: #1D2433;
  --ink-2: #4A5366;
  --ink-3: #7B8394;
  --line: #E2E5EA;
  --rose: #B8476E;
  --rose-soft: #F7E7EE;
  --pass: #3E7B5A;
  --pass-soft: #E6F2EB;
  --warn: #9A5F0C;
  --warn-soft: #FCF1DC;
  --fail: #B42318;
  --fail-soft: #FCE8E6;
  --ui: 'Figtree', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --read: 'Newsreader', Georgia, 'Times New Roman', serif;
  --r-sm: 6px;
  --r-md: 10px;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { font-family: var(--ui); color: var(--ink); background: var(--bg); font-size: 15px; line-height: 1.5; }
button, input, select { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--rose); outline-offset: 2px; }

/* Login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-md); padding: 36px; width: min(400px, 100%); display: grid; gap: 10px; }
.login-card h1 { font-family: var(--read); font-weight: 600; font-size: 30px; margin: 0; }
.login-card p { color: var(--ink-2); margin: 0 0 8px; }
.login-card input { padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--r-sm); }
.form-error { color: var(--fail); margin: 0; }

/* Top bar */
.topbar { display: flex; justify-content: space-between; align-items: center; padding: 14px 28px; background: var(--paper); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.brand { font-family: var(--read); font-size: 22px; font-weight: 600; letter-spacing: -0.01em; }
.brand::before { content: ''; display: inline-block; width: 10px; height: 10px; border-radius: 50%; background: var(--rose); margin-right: 10px; vertical-align: 2px; }
.topbar nav { display: flex; gap: 18px; }
.link-btn { background: none; border: 0; padding: 4px 0; color: var(--ink-2); cursor: pointer; text-decoration: none; font-weight: 500; }
.link-btn:hover { color: var(--rose); }
.link-btn.danger:hover { color: var(--fail); }

/* Layout */
.workspace { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px; padding: 24px 28px 48px; max-width: 1500px; margin: 0 auto; align-items: start; }
.pane { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-md); padding: 22px; }
.pane-report { position: sticky; top: 76px; max-height: calc(100vh - 100px); overflow: auto; }
@media (max-width: 1000px) { .workspace { grid-template-columns: 1fr; padding: 16px; } .pane-report { position: static; max-height: none; } }

/* Draft settings */
.meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 14px; }
.meta-grid label { display: grid; gap: 4px; font-weight: 600; font-size: 13px; color: var(--ink-2); }
.meta-grid .span-2 { grid-column: span 2; }
.hint { font-weight: 400; color: var(--ink-3); }
.meta-grid input, .meta-grid select { padding: 9px 11px; border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--paper); font-weight: 400; font-size: 15px; color: var(--ink); }
@media (max-width: 560px) { .meta-grid { grid-template-columns: 1fr; } .meta-grid .span-2 { grid-column: auto; } }

.draft-toolbar { display: flex; align-items: center; gap: 8px; margin: 20px 0 8px; }
.draft-label { font-weight: 600; margin-right: auto; }
.file-btn { position: relative; overflow: hidden; }
.file-btn input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

/* Editor and manuscript share the reading face */
.editor, .manuscript { font-family: var(--read); font-size: 18px; line-height: 1.65; color: var(--ink); }
.editor { min-height: 420px; max-height: 68vh; overflow: auto; border: 1px solid var(--line); border-radius: var(--r-sm); padding: 20px 24px; background: #FCFCFD; }
.editor:empty::before { content: attr(data-placeholder); color: var(--ink-3); font-family: var(--ui); font-size: 15px; }
.editor h1, .manuscript h1 { font-size: 28px; line-height: 1.2; margin: 0 0 14px; }
.editor h2, .manuscript h2 { font-size: 22px; line-height: 1.3; margin: 24px 0 8px; }
.editor h3, .manuscript h3 { font-size: 19px; margin: 20px 0 6px; }
.editor p, .manuscript p { margin: 0 0 12px; max-width: 72ch; }
.editor a, .manuscript a { color: var(--rose); }

.actions { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }

/* Buttons */
.btn { border-radius: var(--r-sm); padding: 9px 16px; border: 1px solid transparent; cursor: pointer; font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; }
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: #2C3650; }
.btn-secondary { background: var(--rose); color: #fff; }
.btn-secondary:hover { background: #A23D60; }
.btn-secondary:disabled { background: #D9C3CC; cursor: not-allowed; }
.btn-ghost { background: var(--paper); border-color: var(--line); color: var(--ink-2); }
.btn-ghost:hover { border-color: var(--ink-3); color: var(--ink); }

/* Report */
.empty { text-align: left; padding: 40px 8px; color: var(--ink-2); }
.empty h2 { font-family: var(--read); font-weight: 600; font-size: 26px; color: var(--ink); margin: 0 0 8px; }
.scores { display: grid; grid-template-columns: 1fr 1fr 1.2fr; gap: 12px; margin-bottom: 18px; }
.score { border-radius: var(--r-md); padding: 14px 16px; background: var(--bg); display: grid; }
.score-num { font-family: var(--read); font-size: 44px; line-height: 1; font-weight: 600; }
.score-num::after { content: '/100'; font-family: var(--ui); font-size: 14px; color: var(--ink-3); font-weight: 500; margin-left: 4px; }
.score-label { color: var(--ink-2); font-weight: 600; font-size: 13px; margin-top: 6px; }
.score.good .score-num { color: var(--pass); }
.score.mid .score-num { color: var(--warn); }
.score.low .score-num { color: var(--fail); }
.score-stats { display: grid; align-content: center; gap: 2px; color: var(--ink-2); font-size: 14px; }
.score-stats b { color: var(--ink); font-size: 16px; }
@media (max-width: 560px) { .scores { grid-template-columns: 1fr 1fr; } .score-stats { grid-column: span 2; } }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 14px; overflow-x: auto; }
.tab { background: none; border: 0; padding: 10px 12px; color: var(--ink-3); font-weight: 600; cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; }
.tab.active { color: var(--ink); border-bottom-color: var(--rose); }

.group-title { font-size: 14px; font-weight: 700; color: var(--ink-2); margin: 20px 0 8px; }
.group-title:first-child { margin-top: 4px; }
.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.check { display: grid; grid-template-columns: 68px 1fr; gap: 10px; padding: 12px; border-radius: var(--r-sm); border: 1px solid var(--line); }
.check.st-fail { border-color: #F2C7C2; background: #FFFBFA; }
.check.st-warn { border-color: #EFD9AE; background: #FFFDF8; }
.pill { display: inline-block; text-align: center; font-size: 12px; font-weight: 700; padding: 3px 8px; border-radius: 999px; height: fit-content; }
.st-pass .pill { background: var(--pass-soft); color: var(--pass); }
.st-warn .pill { background: var(--warn-soft); color: var(--warn); }
.st-fail .pill { background: var(--fail-soft); color: var(--fail); }
.check-title { margin: 0; font-weight: 600; }
.check-detail { margin: 4px 0 0; color: var(--ink-2); font-size: 14px; }
.check-items { margin: 6px 0 0; padding-left: 18px; color: var(--ink-2); font-size: 14px; }
.check-items li { margin: 2px 0; }
.check-fix { margin: 8px 0 0; font-size: 14px; }
.check-fix span { font-weight: 700; color: var(--rose); }
.metric { color: var(--ink); font-weight: 700; }
.target { color: var(--ink-3); font-weight: 500; font-size: 13px; margin-left: 6px; }
.intro-note { background: var(--rose-soft); border-radius: var(--r-sm); padding: 12px 14px; font-size: 14px; color: var(--ink-2); margin: 0 0 12px; }

/* Marked-up manuscript: the signature view */
.manuscript { padding: 4px 8px 4px 4px; }
.manuscript .legend { font-family: var(--ui); font-size: 13px; color: var(--ink-3); margin-bottom: 18px; }
.manuscript mark { border-radius: 3px; padding: 0 2px; }
.mk-fail { background: #F9D3CE; color: inherit; }
.mk-warn { background: #F8E3B7; color: inherit; }
.manuscript .flag-fail, .manuscript .flag-warn { position: relative; border-left: 3px solid; padding-left: 12px; margin-left: -15px; }
.manuscript .flag-fail { border-color: var(--fail); }
.manuscript .flag-warn { border-color: #D99A2B; }
.margin-note { display: block; font-family: var(--ui); font-size: 13px; line-height: 1.4; margin-top: 4px; font-weight: 600; }
.flag-fail > .margin-note { color: var(--fail); }
.flag-warn > .margin-note { color: var(--warn); }

/* Deep review */
.deep-scores { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 14px; }
.deep-scores div { background: var(--bg); border-radius: var(--r-sm); padding: 10px 12px; display: grid; }
.deep-scores b { font-family: var(--read); font-size: 30px; line-height: 1; }
.deep-scores b::after { content: '/10'; font-family: var(--ui); font-size: 13px; color: var(--ink-3); margin-left: 3px; font-weight: 500; }
.deep-scores span { font-size: 13px; color: var(--ink-2); font-weight: 600; margin-top: 4px; }
.deep-summary { font-size: 16px; }
.plain { padding-left: 18px; margin: 0; }
.plain li { margin: 4px 0; }
.edits { padding-left: 20px; margin: 0; display: grid; gap: 14px; }
.edit-head { margin: 0 0 4px; font-weight: 600; }
.sev-high .pill { background: var(--fail-soft); color: var(--fail); }
.sev-medium .pill { background: var(--warn-soft); color: var(--warn); }
.sev-low .pill { background: var(--pass-soft); color: var(--pass); }
.edit blockquote { margin: 6px 0; padding: 6px 12px; border-left: 3px solid var(--line); font-family: var(--read); font-size: 16px; color: var(--ink-2); }
.edit p { margin: 4px 0; }
.rewrite { background: var(--pass-soft); border-radius: var(--r-sm); padding: 8px 12px; }
.rewrite span { font-weight: 700; color: var(--pass); }
.rewrite.block { font-family: var(--read); font-size: 17px; }

.report-actions { display: flex; gap: 8px; margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--line); flex-wrap: wrap; }
.muted { color: var(--ink-3); }
.small { font-size: 13px; }

/* Dialogs */
.dialog { border: 1px solid var(--line); border-radius: var(--r-md); padding: 24px; width: min(900px, 94vw); color: var(--ink); }
.dialog::backdrop { background: rgba(29, 36, 51, .35); }
.dialog h2 { font-family: var(--read); font-weight: 600; margin: 0 0 6px; }
.dialog form { margin-top: 18px; }
.guide p { margin: 0 0 12px; }
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--ink-2); font-weight: 700; }

.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: var(--ink); color: #fff; padding: 10px 18px; border-radius: var(--r-sm); font-weight: 500; z-index: 20; }

@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }