/* ---------- themes ---------- */
:root, [data-theme="sky"] {
  --bg1: #CFE6F2; --bg2: #D3F0E0;
  --surface: rgba(255,255,255,.72); --surface-2: rgba(255,255,255,.9);
  --text: #23253A; --muted: #5F6478; --border: rgba(35,37,58,.12);
  --tag-bg: rgba(91,91,230,.10); --shadow: 0 6px 24px rgba(40,60,90,.08);
  --ok: #1E7A4C; --warn: #9A5B00; --bad: #B3261E;
  color-scheme: light;
}
[data-theme="lavender"] {
  --bg1: #E7E0F8; --bg2: #F3DCEB;
  --surface: rgba(255,255,255,.66); --surface-2: rgba(255,255,255,.88);
  --text: #2B2440; --muted: #6A6283; --border: rgba(60,40,90,.12);
  --tag-bg: rgba(163,91,216,.11); --shadow: 0 6px 24px rgba(80,50,120,.10);
}
[data-theme="midnight"] {
  --bg1: #15142A; --bg2: #24204A;
  --surface: rgba(38,35,72,.72); --surface-2: rgba(48,44,88,.95);
  --text: #ECEAF7; --muted: #A9A5C6; --border: rgba(255,255,255,.10);
  --tag-bg: rgba(183,148,246,.16); --shadow: 0 6px 24px rgba(0,0,0,.35);
  --ok: #7BD8A6; --warn: #F2C26B; --bad: #FF8A80;
  color-scheme: dark;
}
[data-theme="sepia"] {
  --bg1: #F5EEE2; --bg2: #EADBBF;
  --surface: rgba(255,251,243,.80); --surface-2: #FFFBF3;
  --text: #3A2C1E; --muted: #7A6650; --border: rgba(90,60,30,.15);
  --tag-bg: rgba(149,90,35,.11); --shadow: 0 6px 20px rgba(90,60,30,.10);
}

[data-theme="graphite"] {
  --bg1: #101011; --bg2: #232325;
  --surface: rgba(44,44,47,.78); --surface-2: #2E2E31;
  --text: #EEEAE0; --muted: #A8A59D; --border: rgba(238,234,224,.12);
  --tag-bg: rgba(238,234,224,.09); --shadow: 0 6px 24px rgba(0,0,0,.45);
  --ok: #9FD4B0; --warn: #E6C58A; --bad: #F2948A;
  color-scheme: dark;
}

[data-theme="custom"] {
  --bg1: var(--c-bg1); --bg2: var(--c-bg2);
  --surface: color-mix(in srgb, var(--c-card) 90%, transparent); --surface-2: var(--c-card);
  --text: var(--c-text); --muted: color-mix(in srgb, var(--c-text) 68%, var(--c-card));
  --border: color-mix(in srgb, var(--c-text) 15%, transparent);
  --tag-bg: color-mix(in srgb, var(--accent) 14%, transparent); --shadow: 0 6px 24px rgba(0,0,0,.12);
}

/* ---------- text and layout choices ---------- */
:root { --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; --lh: 1.6; --maxw: 760px; --pad: 22px; --gap: 18px; }
[data-font="serif"] { --font: Charter, "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif; }
[data-font="readable"] { --font: "Atkinson Hyperlegible", system-ui, sans-serif; }
[data-font="mono"] { --font: "iA Writer Mono", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace; }
[data-lh="tight"] { --lh: 1.45; }
[data-lh="airy"] { --lh: 1.85; }
[data-width="narrow"] { --maxw: 640px; }
[data-width="wide"] { --maxw: 920px; }
[data-density="compact"] { --pad: 14px; --gap: 10px; }
[data-scores="0"] .score { display: none; }

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { font-size: var(--fs, 17px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh; font-family: var(--font); line-height: var(--lh); color: var(--text);
  background: linear-gradient(135deg, var(--bg1), var(--bg2)) fixed; background-color: var(--bg1);
}
a { color: var(--accent); text-underline-offset: 2px; }
img { max-width: 100%; height: auto; border-radius: 10px; }
h1, h2, h3 { line-height: 1.25; margin: 0 0 .4em; }
h1 { font-size: 1.75rem; }
h2 { font-size: 1.2rem; }
h3 { font-size: 1.02rem; }
hr { border: 0; border-top: 1px solid var(--border); margin: 18px 0; }
code, pre { font-family: "SF Mono", Menlo, Consolas, monospace; font-size: .85em; }
.muted { color: var(--muted); }
.big-a { font-size: 1.4em; }
.small { font-size: .85rem; }
.bad { color: var(--bad); }
.break { overflow-wrap: anywhere; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; z-index: 99; background: var(--surface-2); padding: 8px 12px; border-radius: 8px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 16px; }

/* ---------- top bar ---------- */
.topbar { position: sticky; top: 0; z-index: 10; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); background: color-mix(in srgb, var(--bg1) 70%, transparent); border-bottom: 1px solid var(--border); }
.topbar-inner { max-width: var(--maxw); margin: 0 auto; padding: 10px 16px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--text); text-decoration: none; font-size: 1.05rem; }
.brand img { border-radius: 8px; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a { padding: 6px 12px; border-radius: 999px; color: var(--text); text-decoration: none; font-size: .9rem; }
.nav a:hover { background: var(--tag-bg); }
.nav a.on { background: var(--accent); color: var(--on-accent, #fff); }

main.wrap { padding-top: 22px; padding-bottom: 30px; }
.intro { margin: 4px 2px 18px; }
.intro p { margin: .2em 0; }
.eyebrow { text-transform: uppercase; letter-spacing: .08em; font-size: .75rem; color: var(--muted); margin: 0 0 4px; }
.flash { background: var(--surface-2); border-left: 4px solid var(--accent); padding: 10px 14px; border-radius: 10px; margin-bottom: 16px; box-shadow: var(--shadow); }
.foot { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; color: var(--muted); font-size: .8rem; padding-bottom: 30px; }

/* ---------- cards ---------- */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: var(--pad);
  margin-bottom: var(--gap); box-shadow: var(--shadow);
  backdrop-filter: blur(10px) saturate(1.2); -webkit-backdrop-filter: blur(10px) saturate(1.2);
}
.card.inner { box-shadow: none; margin: 0; }
.card.is-read .card-title a { color: var(--muted); }
.card-head { display: flex; gap: 14px; align-items: flex-start; }
.score { flex: 0 0 auto; min-width: 3.1em; text-align: center; font-weight: 800; font-size: 1.15rem; color: var(--accent); background: var(--tag-bg); border-radius: 12px; padding: 6px 6px; line-height: 1.2; font-variant-numeric: tabular-nums; }
.card-title { font-size: 1.22rem; margin: 0 0 4px; }
.card-title a { color: var(--text); text-decoration: none; }
.card-title a:hover { color: var(--accent); }
.meta { display: flex; flex-wrap: wrap; gap: 6px; color: var(--muted); font-size: .82rem; }
.meta .src { font-weight: 600; color: var(--text); opacity: .85; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 4px; }
.tag { display: inline-block; font-size: .76rem; padding: 3px 10px; border-radius: 999px; background: var(--tag-bg); color: var(--accent); text-decoration: none; border: 1px solid transparent; font-weight: 600; }
a.tag:hover { border-color: var(--accent); }
.tag.subtle { color: var(--muted); font-weight: 500; }
.why { font-size: .85rem; color: var(--muted); margin: 8px 0 0; }
.why strong { color: var(--text); font-weight: 600; }
.summary { margin: 10px 0 0; }
.more { font-weight: 600; white-space: nowrap; }
.src-note { font-size: .82rem; margin: 12px 0 0; padding: 8px 12px; border-radius: 10px; background: var(--tag-bg); }
.rating-caution.src-note, .rating-caution.check-row { background: color-mix(in srgb, var(--bad) 12%, transparent); }
.rating-opinion.src-note, .rating-mixed.src-note { background: color-mix(in srgb, var(--warn) 12%, transparent); }

.actions { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--border); }
.act { display: inline-flex; align-items: center; gap: 6px; font: inherit; font-size: .85rem; padding: 6px 12px; border-radius: 999px; border: 1px solid var(--border); background: transparent; color: var(--text); cursor: pointer; text-decoration: none; }
.act:hover { border-color: var(--accent); color: var(--accent); }
.act svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.act.on { background: var(--accent); color: var(--on-accent, #fff); border-color: var(--accent); }
.act.on svg { fill: currentColor; }
.card.leaving { opacity: 0; transform: translateX(20px); transition: all .25s ease; }

.divider { display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; margin: 26px 0 16px; }
.divider::before, .divider::after { content: ""; flex: 1; border-top: 1px dashed var(--border); }
.done { text-align: center; padding: 34px 22px; }
.done-mark { width: 54px; height: 54px; margin: 0 auto 12px; border-radius: 50%; background: var(--accent); color: var(--on-accent, #fff); display: grid; place-items: center; font-size: 1.6rem; }
.done-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 14px; }
.empty { text-align: center; }

/* ---------- buttons and forms ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; font: inherit; font-weight: 600; font-size: .92rem; padding: 9px 18px; border-radius: 12px; border: 1px solid var(--accent); background: var(--accent); color: var(--on-accent, #fff); cursor: pointer; text-decoration: none; }
.btn:hover { filter: brightness(1.07); }
.btn.ghost { background: transparent; color: var(--accent); }
.btn.small { padding: 5px 12px; font-size: .82rem; border-radius: 10px; }
.btn.danger { background: transparent; color: var(--bad); border-color: color-mix(in srgb, var(--bad) 50%, transparent); }
.btn[disabled] { opacity: .6; cursor: wait; }
input, select, textarea { font: inherit; font-size: .95rem; color: var(--text); background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px; padding: 9px 12px; width: 100%; }
input[type="range"] { padding: 0; background: transparent; border: 0; accent-color: var(--accent); }
input[type="checkbox"], input[type="radio"] { width: auto; accent-color: var(--accent); }
input[type="color"] { width: 54px; height: 54px; padding: 3px; border-radius: 50%; cursor: pointer; }
label { display: block; font-size: .88rem; font-weight: 600; }
label > input, label > select, label > textarea { margin-top: 5px; font-weight: 400; }
label.check { display: flex; gap: 8px; align-items: center; font-weight: 500; }
.stack { display: grid; gap: 12px; }
.row { display: flex; gap: 10px; align-items: center; }
.row.between { justify-content: space-between; }
.row.end { justify-content: flex-end; }
.wrap-row { flex-wrap: wrap; }
.grow { flex: 1 1 220px; }
.search { display: flex; gap: 8px; margin-top: 8px; }
.pager { display: flex; justify-content: space-between; gap: 10px; }
.back { margin: 0 0 10px; }
.back a { text-decoration: none; font-weight: 600; }

/* ---------- reading view ---------- */
.reader { padding: calc(var(--pad) + 6px); }
.read-title { font-size: 1.8rem; margin-bottom: 8px; }
.prose { margin-top: 18px; overflow-wrap: break-word; }
.prose p, .prose li { margin: 0 0 1em; }
.prose blockquote { margin: 1em 0; padding: 4px 16px; border-left: 3px solid var(--accent); color: var(--muted); }
.prose figure { margin: 1.2em 0; }
.prose figcaption { font-size: .8rem; color: var(--muted); }
.prose pre { overflow-x: auto; background: var(--tag-bg); padding: 12px; border-radius: 10px; }
.prose table { display: block; overflow-x: auto; border-collapse: collapse; }
.prose td, .prose th { border: 1px solid var(--border); padding: 4px 8px; }
.tts { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 12px; }
.tts-rate { display: inline-flex; gap: 6px; align-items: center; font-weight: 500; font-size: .82rem; }
.tts-rate select { width: auto; padding: 4px 8px; margin: 0; }
.prose .speaking { background: color-mix(in srgb, var(--accent) 16%, transparent); border-radius: 4px; }

.checkbox { margin-top: 22px; padding: 18px; border-radius: 14px; border: 1px solid var(--border); background: var(--surface-2); }
.checkbox h2 { font-size: 1.05rem; }
.fine { font-size: .8rem; color: var(--muted); margin: 0 0 12px; }
.check-row { display: grid; gap: 4px; padding: 10px 12px; border-radius: 10px; background: var(--tag-bg); font-size: .9rem; }
.check-label { font-size: .75rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.findings { padding-left: 18px; font-size: .9rem; margin: 14px 0; }
.findings li { margin-bottom: 8px; }
.quick summary { cursor: pointer; font-weight: 600; font-size: .9rem; }
.quick ol { font-size: .9rem; }
.check-links { font-size: .88rem; margin: 10px 0 0; }
.small-link { font-size: .8rem; }

/* ---------- settings ---------- */
.settings { display: grid; grid-template-columns: 170px 1fr; gap: 18px; align-items: start; }
.tabs { display: grid; gap: 4px; position: sticky; top: 76px; }
.tabs a { padding: 9px 14px; border-radius: 12px; text-decoration: none; color: var(--text); font-weight: 600; font-size: .92rem; }
.tabs a:hover { background: var(--tag-bg); }
.tabs a.on { background: var(--accent); color: var(--on-accent, #fff); }
.panel { min-width: 0; }
.topics { list-style: none; padding: 0; margin: 12px 0; }
.topic { border-bottom: 1px solid var(--border); padding: 6px 0; }
.topic.dragging { opacity: .4; }
.topic-row { display: grid; grid-template-columns: 18px 1fr 34px minmax(90px, 160px) 52px; gap: 10px; align-items: center; }
.grip { cursor: grab; color: var(--muted); letter-spacing: -3px; user-select: none; }
.topic-name { color: var(--text); text-decoration: none; font-weight: 600; font-size: .92rem; }
.count { font-size: .75rem; text-align: right; }
.pct { font-weight: 700; color: var(--accent); text-align: right; font-size: .85rem; font-variant-numeric: tabular-nums; }
.topic-edit summary { font-size: .78rem; color: var(--muted); cursor: pointer; margin-left: 28px; }
.topic-edit form { margin: 8px 0 8px 28px; }
.feed { border-bottom: 1px solid var(--border); padding: 10px 0; }
.feed summary { cursor: pointer; display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.feed-title { font-weight: 600; }
.feed-stat { font-size: .8rem; }
.feed.off .feed-title { opacity: .5; }
.feed form { margin-top: 10px; }
.code { white-space: pre-wrap; overflow-wrap: anywhere; background: var(--tag-bg); padding: 10px 12px; border-radius: 10px; }
.themes { display: grid; grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); gap: 12px; margin-top: 12px; }
.theme-card { font: inherit; text-align: left; background: var(--surface-2); color: var(--text); border: 2px solid var(--border); border-radius: 16px; padding: 12px; cursor: pointer; display: grid; gap: 10px; }
.theme-card.on { border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent); }
.swatch { height: 56px; border-radius: 10px; position: relative; display: block; }
.dot { position: absolute; right: 10px; top: 50%; transform: translateY(-50%); width: 26px; height: 26px; border-radius: 50%; border: 3px solid #fff; }
.theme-name { font-weight: 700; }
.palette { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin: 12px 0; }
.palette label { display: flex; align-items: center; gap: 10px; font-weight: 500; }
.palette input[type="color"] { width: 44px; height: 44px; margin: 0; flex: 0 0 auto; }
.contrast-warn { color: var(--bad); font-size: .85rem; }
.field { margin: 16px 0; border: 0; padding: 0; }
.field legend, .field > label { font-size: .88rem; font-weight: 600; margin-bottom: 8px; padding: 0; }
.field > label { display: flex; justify-content: space-between; }
.seg-row { display: flex; flex-wrap: wrap; gap: 6px; }
.seg label { font-weight: 500; }
.seg input { position: absolute; opacity: 0; }
.seg span { display: inline-block; padding: 6px 14px; border-radius: 999px; border: 1px solid var(--border); cursor: pointer; font-size: .88rem; }
.seg input:checked + span { background: var(--accent); color: var(--on-accent, #fff); border-color: var(--accent); }
.seg input:focus-visible + span { outline: 3px solid var(--accent); outline-offset: 2px; }
.plain-list { list-style: none; padding: 0; }
.plain-list li { display: flex; justify-content: space-between; gap: 10px; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--border); font-size: .9rem; }

/* ---------- login ---------- */
.gate { display: grid; place-items: center; padding: 16px; }
.gate-box { width: 100%; max-width: 400px; text-align: center; }
.gate-box img { border-radius: 14px; margin-bottom: 8px; }
.gate-box .stack { text-align: left; }

/* ---------- toast ---------- */
.toast { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); z-index: 50; background: var(--surface-2); color: var(--text); border: 1px solid var(--border); box-shadow: 0 10px 30px rgba(0,0,0,.18); border-radius: 14px; padding: 10px 14px; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; max-width: calc(100% - 32px); font-size: .9rem; }
.toast button { font: inherit; font-size: .85rem; background: none; border: 0; color: var(--accent); font-weight: 700; cursor: pointer; padding: 4px 6px; }

@media (max-width: 680px) {
  h1 { font-size: 1.45rem; }
  .read-title { font-size: 1.45rem; }
  .settings { grid-template-columns: 1fr; }
  .tabs { position: static; display: flex; overflow-x: auto; }
  .tabs a { white-space: nowrap; }
  .topic-row { grid-template-columns: 16px 1fr 46px; }
  .topic-row .count { display: none; }
  .topic-row input[type="range"] { grid-column: 2 / 4; }
  .topic-row .pct { grid-row: 1; grid-column: 3; }
  .nav a { padding: 5px 9px; font-size: .85rem; }
  .card-head { gap: 10px; }
  .score { font-size: 1rem; min-width: 2.8em; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }