/* Phishing Email Analyzer: a light, webmail-style dashboard. No build step, no inline styles (strict CSP). */
:root {
  --bg: #eaf0f9;
  --pane: #ffffff;
  --pane2: #f6f9fe;
  --line: #dde5f1;
  --line2: #c8d4e6;
  --ink: #1c2840;
  --muted: #56647a;
  --blue: #2c6bed;
  --blue-d: #1e55c8;
  --blue-soft: #e6efff;
  --sel: #dfeaff;
  --red: #c52f48; --red-soft: #fdecef; --red-line: #f3bcc5;
  --amber: #96600a; --amber-soft: #fff4d9; --amber-line: #efd596;
  --green: #1b7a52; --green-soft: #e3f5ec; --green-line: #b3dcc6;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body { margin: 0; font: 14px/1.5 var(--sans); color: var(--ink); background: var(--bg); -webkit-font-smoothing: antialiased; }
h1, h2, h3, p { margin: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
code { font-family: var(--mono); font-size: .88em; background: var(--pane2); border: 1px solid var(--line); border-radius: 4px; padding: 0 .3em; }
a { color: var(--blue-d); }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--blue); color: #fff; padding: .5rem .8rem; z-index: 50; border-radius: 0 0 8px 0; }
.skip:focus { left: 0; }
.meta, .muted { color: var(--muted); }
.meta { font-size: .8rem; }
.mono, .mono-note, .ioc-val, .hash, .ev, pre, .ip { font-family: var(--mono); }
.hint { color: var(--muted); font-size: .88rem; margin: .35rem 0 .6rem; max-width: 70ch; }

/* ---------- frame ---------- */
.app { display: flex; flex-direction: column; height: 100vh; height: 100dvh; }
.topbar { flex: none; display: flex; align-items: center; gap: 1.2rem; padding: .55rem 1rem; background: var(--pane); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: .6rem; min-width: 230px; }
.logo { width: 34px; height: 34px; color: var(--blue); flex: none; }
.brand h1 { font-size: 1rem; font-weight: 650; letter-spacing: -.01em; line-height: 1.15; }
.tagline { font-size: .74rem; color: var(--muted); }
.searchbox { flex: 1; max-width: 640px; position: relative; }
.searchbox svg { position: absolute; left: .8rem; top: 50%; width: 16px; height: 16px; transform: translateY(-50%); fill: none; stroke: var(--muted); stroke-width: 2; stroke-linecap: round; }
.searchbox input { width: 100%; padding: .55rem .9rem .55rem 2.3rem; border: 1px solid transparent; background: var(--bg); border-radius: 999px; }
.searchbox input:focus { background: var(--pane); border-color: var(--blue); outline: none; box-shadow: 0 0 0 3px rgba(44, 107, 237, .15); }
#dataset-meta { margin-left: auto; white-space: nowrap; }
.help-btn { flex: none; display: inline-flex; align-items: center; gap: .45rem; padding: .35rem .85rem .35rem .45rem; border: 1px solid var(--blue); border-radius: 999px; background: var(--blue-soft); color: var(--blue-d); font-weight: 600; cursor: pointer; }
.help-btn .q { display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: var(--blue); color: #fff; font-size: .8rem; font-weight: 700; }
.help-btn:hover, .help-btn.active { background: #d5e4ff; }

.banner { flex: none; display: flex; flex-wrap: wrap; align-items: baseline; gap: .2rem .6rem; padding: .4rem 1rem; background: #fff8dd; border-bottom: 1px solid #ecd98d; color: #5b4a10; font-size: .82rem; }
.banner strong { letter-spacing: .04em; }
.banner details { margin-left: auto; }
.banner summary { cursor: pointer; color: #7a5d00; text-decoration: underline dotted; }
.banner details p { position: absolute; right: 1rem; left: 1rem; z-index: 20; max-width: 640px; margin: .4rem 0 0 auto; padding: .8rem 1rem; background: #fffdf2; border: 1px solid #ecd98d; border-radius: 10px; box-shadow: 0 8px 24px rgba(40, 40, 0, .12); line-height: 1.55; }

.startbar { flex: none; display: flex; flex-wrap: wrap; align-items: center; gap: .3rem .8rem; padding: .3rem 1rem; background: var(--pane2); border-bottom: 1px solid var(--line); color: #3a4659; font-size: .8rem; }
.startbar[hidden] { display: none; }
.startbar .sq { display: none; }
.startbar p { flex: 1 1 14rem; }
.startbar .sa { display: flex; flex-wrap: wrap; gap: .5rem; }
#main:focus { outline: none; }
.guide-lede { font-size: 1rem; line-height: 1.7; max-width: 72ch; margin: .6rem 0 0; }
#view-guide .sec h3 { font-size: .74rem; }
.walk { list-style: none; counter-reset: step; margin: 0; padding: 0; display: grid; gap: .7rem; max-width: 76ch; }
.walk li { counter-increment: step; position: relative; padding: .8rem 1rem .8rem 3.4rem; border: 1px solid var(--line); border-radius: 12px; background: var(--pane); }
.walk li::before { content: counter(step); position: absolute; left: .9rem; top: .8rem; width: 1.7rem; height: 1.7rem; display: grid; place-items: center; border-radius: 50%; background: var(--blue); color: #fff; font-weight: 700; font-size: .9rem; }
.walk p { margin: 0 0 .5rem; line-height: 1.6; }
dl.gloss { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); gap: .6rem .9rem; margin: 0; }
dl.gloss > div { padding: .6rem .85rem .7rem; border: 1px solid var(--line); border-left: 3px solid var(--blue); border-radius: 8px; background: var(--pane2); }
dl.gloss dt { font-weight: 650; color: var(--blue-d); margin-bottom: .15rem; }
dl.gloss dd { margin: 0; font-size: .9rem; line-height: 1.5; }
.skills { margin-top: 1.6rem; max-width: 76ch; padding: 1rem 1.2rem; border: 1px solid var(--blue-soft); background: var(--blue-soft); border-radius: 12px; }
.skills h3 { font-size: 1rem; margin-bottom: .3rem; color: var(--blue-d); }
.skills p { line-height: 1.65; }
.shell { flex: 1; min-height: 0; display: grid; grid-template-columns: 232px 390px minmax(0, 1fr); }
.folders, .listpane, .readpane { min-height: 0; min-width: 0; overflow-y: auto; }
.folders { padding: .9rem .6rem 1rem; background: var(--bg); }
.listpane { background: var(--pane); border-left: 1px solid var(--line); border-right: 1px solid var(--line); }
.readpane { background: var(--pane); padding: 0; }

/* ---------- folders ---------- */
.compose { display: flex; align-items: center; gap: .6rem; width: 100%; padding: .75rem 1rem; margin-bottom: 1rem; border: 0; border-radius: 16px; background: var(--blue-soft); color: var(--blue-d); font-weight: 600; cursor: pointer; text-align: left; box-shadow: 0 1px 2px rgba(30, 85, 200, .18); }
.compose svg { width: 20px; height: 20px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.compose:hover, .compose.active { background: #d5e4ff; }
.folder-list { list-style: none; margin: 0; padding: 0; }
.folder { display: flex; align-items: center; gap: .65rem; width: 100%; padding: .42rem .9rem; border: 0; border-radius: 0 999px 999px 0; background: none; cursor: pointer; text-align: left; color: #34425c; }
.folder svg { width: 18px; height: 18px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.folder .lbl { flex: 1; }
.folder .n { font-size: .78rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.folder:hover { background: rgba(44, 107, 237, .08); }
.folder.active { background: var(--sel); color: var(--blue-d); font-weight: 650; }
.folder.active .n { color: var(--blue-d); }
.folder.f-likely_phishing svg { color: var(--red); }
.folder.f-suspicious svg { color: var(--amber); }
.folder.f-benign svg { color: var(--green); }
.fh { margin: 1.3rem .9rem .3rem; font-size: .7rem; font-weight: 650; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.folder-foot { margin: 1.5rem .9rem 0; font-size: .76rem; color: var(--muted); line-height: 1.45; }

/* ---------- message list ---------- */
.list-head { position: sticky; top: 0; z-index: 3; display: flex; align-items: center; justify-content: space-between; gap: .6rem; padding: .75rem 1rem .6rem; background: var(--pane); border-bottom: 1px solid var(--line); }
.list-head h2 { display: inline; font-size: 1.05rem; font-weight: 650; margin-right: .5rem; }
.sort { font-size: .78rem; color: var(--muted); }
.sort select { border: 1px solid var(--line2); background: var(--pane); border-radius: 6px; padding: .15rem .3rem; font-size: .78rem; }
.mail-list { list-style: none; margin: 0; padding: 0; }
.mail, .pin { display: flex; gap: .75rem; width: 100%; padding: .7rem 1rem; border: 0; border-bottom: 1px solid var(--line); border-left: 3px solid transparent; background: var(--pane); text-align: left; cursor: pointer; }
.pin { background: var(--pane2); }
.mail:hover, .pin:hover { background: #f1f6ff; }
.mail.active, .pin.active { background: var(--sel); border-left-color: var(--blue); }
.mbody { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: .05rem; }
.r1 { display: flex; justify-content: space-between; gap: .5rem; align-items: baseline; }
.from { font-weight: 650; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.when { font-size: .74rem; color: var(--muted); white-space: nowrap; }
.subj { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.snip { font-size: .82rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.r3 { display: flex; align-items: center; gap: .5rem; margin-top: .25rem; }
.score { font-size: .74rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.empty { padding: 2rem 1.2rem; color: var(--muted); text-align: center; }

/* avatars: eight soft colour pairs, picked per sender domain in app.js */
.av { flex: none; width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center; font-size: .82rem; font-weight: 650; letter-spacing: .02em; user-select: none; }
.av.lg { width: 52px; height: 52px; font-size: 1.05rem; }
.av0 { background: #dbe7ff; color: #264a9e; } .av1 { background: #d6f0f2; color: #176670; }
.av2 { background: #e5dcff; color: #5a3aa8; } .av3 { background: #ffe3d2; color: #9a4a17; }
.av4 { background: #dff3dc; color: #2d7433; } .av5 { background: #fbdcea; color: #9a2a5e; }
.av6 { background: #f3ecc6; color: #766112; } .av7 { background: #dde3ee; color: #3d4b66; }
.av-note { background: var(--blue); color: #fff; }
.av-guide { background: var(--amber-soft); color: var(--amber); border: 1px solid var(--amber-line); font-size: 1.05rem; }

/* verdict chips */
.vbadge { display: inline-block; padding: .05rem .55rem; border-radius: 999px; font-size: .74rem; font-weight: 600; border: 1px solid transparent; white-space: nowrap; }
.v-likely_phishing.vbadge { background: var(--red-soft); color: var(--red); border-color: var(--red-line); }
.v-suspicious.vbadge { background: var(--amber-soft); color: var(--amber); border-color: var(--amber-line); }
.v-benign.vbadge { background: var(--green-soft); color: var(--green); border-color: var(--green-line); }

/* ---------- reading pane ---------- */
.mobilebar { display: none; }
.msg, .page, .letter { padding: 0 1.6rem 3rem; max-width: 980px; }
.msg[hidden], .page[hidden], .letter[hidden] { display: none; }
.warn { display: flex; align-items: center; gap: .8rem; margin: 0 -1.6rem 1.2rem; padding: .75rem 1.6rem; border-bottom: 1px solid; }
.warn-ic { flex: none; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; color: #fff; }
.warn-text { flex: 1; font-size: .92rem; }
.warn-text strong { font-weight: 650; }
.warn.v-likely_phishing { background: var(--red-soft); border-color: var(--red-line); color: #6f1424; } .warn.v-likely_phishing .warn-ic { background: var(--red); }
.warn.v-suspicious { background: var(--amber-soft); border-color: var(--amber-line); color: #5f3d03; } .warn.v-suspicious .warn-ic { background: #c98a12; }
.warn.v-benign { background: var(--green-soft); border-color: var(--green-line); color: #145a3b; } .warn.v-benign .warn-ic { background: var(--green); }
.msg-head { display: grid; grid-template-columns: auto minmax(0, 1fr) 250px; gap: 1rem 1.1rem; align-items: start; padding-bottom: 1rem; border-bottom: 1px solid var(--line); }
.msg-head h2 { font-size: 1.35rem; font-weight: 600; line-height: 1.25; letter-spacing: -.01em; overflow-wrap: anywhere; }
.from-line { margin-top: .3rem; overflow-wrap: anywhere; }
.addr { color: var(--muted); }
.meta-line { font-size: .82rem; color: var(--muted); overflow-wrap: anywhere; }
.tagrow { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .6rem; }
.case-note { margin: .8rem 0 0; font-size: .78rem; color: var(--muted); }

/* the gauge: plain bar, three tinted zones, one needle */
.gauge-wrap { padding: .1rem 0 0; }
.gauge-num { display: flex; align-items: baseline; justify-content: flex-end; gap: .15rem; }
.gauge-num .big { font-size: 2rem; font-weight: 650; line-height: 1; font-variant-numeric: tabular-nums; }
.gauge-num .of { font-size: .78rem; color: var(--muted); }
.gauge { position: relative; height: 12px; margin-top: .45rem; border-radius: 6px; border: 1px solid var(--line2); background: linear-gradient(90deg, var(--green-soft) 0 var(--s, 25%), var(--amber-soft) var(--s, 25%) var(--p, 55%), var(--red-soft) var(--p, 55%) 100%); }
.gauge .tick { position: absolute; top: -3px; bottom: -3px; width: 1px; background: var(--line2); }
.gauge .needle { position: absolute; top: -5px; bottom: -5px; width: 4px; margin-left: -2px; border-radius: 2px; background: var(--ink); box-shadow: 0 0 0 2px #fff; }
.gauge-legend { display: flex; justify-content: space-between; gap: .4rem; margin-top: .35rem; font-size: .68rem; color: var(--muted); }
.gauge.v-likely_phishing .needle { background: var(--red); } .gauge.v-suspicious .needle { background: #c98a12; } .gauge.v-benign .needle { background: var(--green); }

[hidden] { display: none !important; }
.sec { margin-top: 1.5rem; }
.closer { font-size: .74rem; font-weight: 650; text-transform: uppercase; letter-spacing: .09em; color: var(--muted); margin: 2rem 0 .5rem; }
.folds { border-top: 1px solid var(--line); }
details.fold { margin: 0; border-bottom: 1px solid var(--line); }
details.fold > summary { display: flex; align-items: baseline; gap: .6rem; padding: .7rem .2rem; cursor: pointer; list-style: none; }
details.fold > summary::-webkit-details-marker { display: none; }
details.fold > summary::before { content: "\25B8"; color: var(--muted); font-size: .8rem; width: .9rem; flex: none; transition: transform .12s ease; }
details.fold[open] > summary::before { transform: rotate(90deg); }
details.fold > summary:hover { background: #f6f9ff; }
details.fold > summary b { font-weight: 650; }
details.fold > summary .n { font-size: .74rem; padding: 0 .5rem; border-radius: 999px; background: var(--pane2); border: 1px solid var(--line2); color: var(--muted); }
details.fold > summary .fx { color: var(--muted); font-size: .86rem; }
.fold-body { padding: .2rem .2rem 1.1rem 1.5rem; }
.more-row { margin: .7rem 0 0; }
.btn.ghost.sm.more-reasons { min-height: 32px; }
.sec h3 { font-size: .74rem; font-weight: 650; text-transform: uppercase; letter-spacing: .09em; color: var(--muted); margin-bottom: .55rem; }
.sub-h { font-size: .8rem; font-weight: 650; color: var(--muted); margin: 1.2rem 0 .4rem; }
.reasons { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; }
.reason { display: grid; grid-template-columns: 3rem 1fr; gap: .7rem; padding: .65rem .8rem; border: 1px solid var(--line); border-left: 4px solid var(--line2); border-radius: 8px; background: var(--pane); }
.reason.sev-critical, .reason.sev-high { border-left-color: var(--red); }
.reason.sev-medium { border-left-color: #d9a02a; }
.reason.sev-low { border-left-color: #6a9bf0; }
.reason.good { border-left-color: var(--green); background: var(--green-soft); }
.pts { font-weight: 700; font-variant-numeric: tabular-nums; font-size: 1.05rem; color: var(--ink); }
.ttl { font-weight: 600; }
.dt { color: #44546e; font-size: .88rem; }
.ev { margin-top: .35rem; font-size: .76rem; background: var(--pane2); border: 1px solid var(--line); border-radius: 6px; padding: .4rem .55rem; white-space: pre-wrap; overflow-wrap: anywhere; color: #33425c; }
.mt, .chip-row { display: flex; flex-wrap: wrap; gap: .3rem; margin-top: .4rem; }
.chip-row { margin-top: 0; }
.mitre-chip, .tag, .flag { display: inline-block; font-size: .72rem; padding: .02rem .5rem; border-radius: 6px; background: var(--blue-soft); color: #264a9e; border: 1px solid #c6d8fb; font-family: var(--mono); overflow-wrap: anywhere; }
.tag { font-family: var(--sans); background: var(--pane2); color: var(--muted); border-color: var(--line); }
.flag { margin: 0 .25rem .2rem 0; background: var(--pane2); color: #3d4b66; border-color: var(--line2); }
.flag.f-critical, .flag.f-high { background: var(--red-soft); color: var(--red); border-color: var(--red-line); }
.flag.f-medium { background: var(--amber-soft); color: var(--amber); border-color: var(--amber-line); }
.flag.f-ok { background: var(--green-soft); color: var(--green); border-color: var(--green-line); font-family: var(--sans); }
.tagrow .flag { font-family: var(--sans); }

.bars { display: grid; gap: .5rem; }
.barrow { display: grid; grid-template-columns: 8.5rem minmax(0, 1fr) 9.5rem; gap: .8rem; align-items: center; font-size: .86rem; }
.barrow .val { text-align: right; font-variant-numeric: tabular-nums; }
.barrow .mono-note { font-family: var(--sans); font-size: .8rem; color: var(--muted); }
.barrow.total { border-top: 1px solid var(--line); padding-top: .5rem; font-weight: 650; }
.track { position: relative; height: 10px; border-radius: 5px; background: var(--bg); overflow: hidden; }
.track i { position: absolute; left: 0; top: 0; bottom: 0; }
.track .raw { background: #cddcf7; }
.track .got { background: var(--blue); }
.t-ok { color: var(--green); }

/* the route: a plain numbered list with a line down the side, like a parcel tracker */
.route { list-style: none; margin: .2rem 0 0; padding: 0 0 0 1.5rem; position: relative; }
.route::before { content: ""; position: absolute; left: 6px; top: .5rem; bottom: .5rem; width: 2px; background: var(--line2); }
.hop { position: relative; display: flex; flex-direction: column; padding: .25rem 0 .9rem; }
.hop::before { content: ""; position: absolute; left: -1.5rem; top: .45rem; width: 14px; height: 14px; border-radius: 50%; background: var(--pane); border: 3px solid var(--blue); }
.hop.bad::before { border-color: var(--red); }
.hop .stop { font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 650; color: var(--muted); }
.hop .h { font-weight: 600; overflow-wrap: anywhere; white-space: pre-wrap; }
.hop .ip { font-size: .78rem; color: #44546e; overflow-wrap: anywhere; white-space: pre-wrap; }
.delta { font-size: .8rem; color: var(--muted); margin-top: .1rem; }
.delta.bad { color: var(--red); font-weight: 600; }
.tag2 { align-self: flex-start; margin-top: .2rem; font-size: .76rem; padding: .02rem .5rem; border-radius: 6px; background: var(--red-soft); color: var(--red); border: 1px solid var(--red-line); }

.authrow { display: flex; flex-wrap: wrap; gap: .6rem; }
.achip { flex: 1 1 170px; max-width: 280px; padding: .5rem .8rem; border: 1px solid var(--line2); border-radius: 10px; background: var(--pane2); }
.achip .k { display: block; font-size: .7rem; font-weight: 650; letter-spacing: .08em; color: var(--muted); }
.achip .v { font-weight: 700; font-size: 1.05rem; }
.achip .s { display: block; font-size: .74rem; color: var(--muted); overflow-wrap: anywhere; }
.achip.pass { background: var(--green-soft); border-color: var(--green-line); } .achip.pass .v { color: var(--green); }
.achip.fail, .achip.hardfail { background: var(--red-soft); border-color: var(--red-line); } .achip.fail .v, .achip.hardfail .v { color: var(--red); }
.achip.softfail, .achip.permerror, .achip.temperror, .achip.neutral { background: var(--amber-soft); border-color: var(--amber-line); } .achip.softfail .v, .achip.permerror .v, .achip.temperror .v, .achip.neutral .v { color: var(--amber); }

/* tables */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; }
table.data, table.cm { width: 100%; border-collapse: collapse; font-size: .84rem; }
.data th, .cm th { text-align: left; font-size: .72rem; font-weight: 650; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); background: var(--pane2); padding: .45rem .7rem; border-bottom: 1px solid var(--line); white-space: nowrap; }
.data td, .cm td, .cm tbody th { padding: .45rem .7rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.data tr:last-child td, .cm tr:last-child td, .cm tr:last-child th { border-bottom: 0; }
.data td.num, .data th.num, .cm td { font-variant-numeric: tabular-nums; }
.data td.num { text-align: right; }
.cm td { text-align: center; }
.cm tbody th { text-align: left; background: var(--pane2); color: var(--ink); text-transform: none; letter-spacing: 0; font-size: .84rem; }
.cm td.diag { background: var(--green-soft); font-weight: 650; } .cm td.off { background: var(--red-soft); color: var(--red); font-weight: 650; }
.wrap-any, .ioc-val { overflow-wrap: anywhere; word-break: break-word; }
.ioc-val { font-size: .8rem; }
.sub { display: block; font-size: .74rem; color: var(--muted); overflow-wrap: anywhere; }
td.okc { color: var(--green); } td.mis { color: var(--red); font-weight: 650; }
.nm { font-family: var(--mono); font-size: .82rem; overflow-wrap: anywhere; }
.hash { font-size: .76rem; }
.plain { margin: 0; padding-left: 1.2rem; }
.plain li { margin: .25rem 0; }
.todo { list-style: none; padding: 0; }
.todo li { position: relative; padding-left: 1.7rem; }
.todo li::before { content: ""; position: absolute; left: 0; top: .28rem; width: 13px; height: 13px; border: 2px solid var(--line2); border-radius: 4px; background: var(--pane); }
pre.note, pre.rawsrc { margin: 0; padding: .8rem 1rem; background: var(--pane2); border: 1px solid var(--line); border-radius: 8px; font-size: .78rem; white-space: pre-wrap; overflow-wrap: anywhere; max-height: 420px; overflow: auto; }
.orig { margin-top: 1.8rem; border-top: 1px solid var(--line); padding-top: .8rem; }
.orig summary { cursor: pointer; color: var(--blue-d); font-weight: 600; }
.orig pre { margin-top: .6rem; }

/* buttons, inputs */
.btn { border: 1px solid var(--blue); background: var(--blue); color: #fff; padding: .45rem 1rem; border-radius: 999px; font-weight: 600; cursor: pointer; }
.btn:hover { background: var(--blue-d); }
.btn.ghost { background: var(--pane); color: var(--blue-d); border-color: var(--line2); }
.btn.ghost:hover { background: var(--blue-soft); border-color: var(--blue); }
.btn.sm { padding: .2rem .8rem; font-size: .82rem; white-space: nowrap; }
.btn-row { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.mt-s { margin-top: .6rem; }
.toast { font-size: .82rem; color: var(--green); }
.linklike { background: none; border: 0; padding: 0; color: var(--blue-d); text-decoration: underline; cursor: pointer; font-family: var(--mono); font-size: .8rem; text-align: left; overflow-wrap: anywhere; }
.filters { display: flex; flex-wrap: wrap; gap: .5rem; margin: .5rem 0 .8rem; }
.filters input, .filters select, #paste-sample { padding: .4rem .7rem; border: 1px solid var(--line2); border-radius: 8px; background: var(--pane); }
.filters input { flex: 1; min-width: 160px; }
#paste-sample { display: block; max-width: 100%; margin-bottom: .6rem; }
#paste-input { display: block; width: 100%; min-height: 220px; resize: vertical; padding: .8rem 1rem; font: .8rem/1.5 var(--mono); border: 1px solid var(--line2); border-radius: 10px; background: var(--pane2); }
#paste-input:focus { background: #fff; border-color: var(--blue); outline: none; box-shadow: 0 0 0 3px rgba(44, 107, 237, .15); }
.paste-controls { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem; margin: .8rem 0 1rem; }
#paste-result { margin-top: 1rem; padding: 0 0 2rem; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
#paste-result > :not(.warn) { margin-left: 1.4rem; margin-right: 1.4rem; }
#paste-result > .warn { margin: 0 0 1.2rem; }
#paste-result > .sec { margin-top: 1.4rem; }

.page-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: .5rem 1rem; padding: 1.3rem 0 .6rem; border-bottom: 1px solid var(--line); margin-bottom: .6rem; }
.page-head h2 { font-size: 1.35rem; font-weight: 600; letter-spacing: -.01em; }
.caveat { margin: .8rem 0 1rem; padding: .7rem 1rem; background: var(--amber-soft); border: 1px solid var(--amber-line); border-radius: 8px; color: #5f3d03; font-size: .88rem; }
.panel.error { margin: 1rem 1.6rem; padding: .8rem 1rem; background: var(--red-soft); border: 1px solid var(--red-line); border-radius: 8px; color: #6f1424; }

/* the note from me, set like a letter */
.letter { padding-top: 1.6rem; max-width: 720px; }
.letter-head { display: flex; align-items: center; gap: 1rem; padding-bottom: 1rem; border-bottom: 1px solid var(--line); }
.letter-head h2 { font-size: 1.5rem; font-weight: 600; letter-spacing: -.01em; }
.letter-body { padding-top: 1rem; font-size: 1rem; line-height: 1.7; }
.letter-body p { margin: 0 0 1rem; }
.letter-body h3 { font-size: 1rem; margin: 1.6rem 0 .4rem; color: var(--blue-d); }
.letter-body .sign { margin-top: 1.4rem; font-size: 1.15rem; font-style: italic; color: var(--muted); }

/* ---------- other views take the room the list normally has ---------- */
body:not([data-view="mail"]):not([data-view="about"]) .listpane { display: none; }
body:not([data-view="mail"]):not([data-view="about"]) .readpane { grid-column: 2 / 4; border-left: 1px solid var(--line); }

/* ---------- smaller screens: one pane at a time, like a phone mail app ---------- */
@media (max-width: 1180px) {
  .shell { grid-template-columns: 208px 330px minmax(0, 1fr); }
  .msg-head { grid-template-columns: auto minmax(0, 1fr); }
  .gauge-wrap { grid-column: 1 / -1; max-width: 420px; }
  .gauge-num { justify-content: flex-start; }
}
@media (max-width: 900px) {
  .app { height: auto; min-height: 100vh; }
  .topbar { flex-wrap: wrap; gap: .5rem .8rem; padding: .6rem .8rem; }
  .brand { min-width: 0; }
  .searchbox { order: 3; flex: 1 1 100%; max-width: none; }
  #dataset-meta { display: none; }
  .banner { padding: .4rem .8rem; }
  .banner details p { position: static; margin: .4rem 0 0; box-shadow: none; }
  .banner details { margin-left: 0; width: 100%; }
  .shell { display: block; }
  .folders { overflow: visible; padding: .6rem .6rem .4rem; }
  .folders .fh, .folder-foot { display: none; }
  .help-btn { order: 2; margin-left: auto; } .brand { flex: 1 1 auto; } #dataset-meta { display: none; }
  .startbar { padding: .6rem .8rem; } .startbar .btn { min-height: 40px; }
  .walk li { padding: .75rem .8rem .8rem 3rem; } .walk li::before { left: .7rem; } .walk .btn { min-height: 40px; }
  .compose { margin-bottom: .5rem; padding: .55rem .9rem; }
  .folder-list { display: flex; gap: .4rem; overflow-x: auto; padding-bottom: .3rem; }
  .folder-list li { flex: none; }
  .folder { width: auto; border-radius: 999px; padding: .35rem .8rem; background: var(--pane); border: 1px solid var(--line); }
  .folder .n { margin-left: .2rem; }
  .listpane, .readpane { overflow: visible; border: 0; }
  body.reading .listpane, body.reading .folders { display: none; }
  body:not(.reading) .readpane { display: none; }
  body:not([data-view="mail"]):not([data-view="about"]) .listpane { display: none; }
  .mobilebar { display: block; padding: .5rem .8rem; border-bottom: 1px solid var(--line); background: var(--pane2); position: sticky; top: 0; z-index: 5; }
  .mobilebar button { border: 0; background: none; color: var(--blue-d); font-weight: 650; padding: .3rem 0; cursor: pointer; }
  .msg, .page, .letter { padding-left: 1rem; padding-right: 1rem; }
  .warn { margin-left: -1rem; margin-right: -1rem; padding-left: 1rem; padding-right: 1rem; flex-wrap: wrap; }
  .barrow { grid-template-columns: 6.5rem minmax(0, 1fr); }
  .barrow .val { grid-column: 2; text-align: left; }
  .barrow .mono-note { grid-column: 2; }
  #paste-result > :not(.warn) { margin-left: .8rem; margin-right: .8rem; }
  .reason { grid-template-columns: 2.4rem 1fr; }
}
@media (prefers-reduced-motion: no-preference) {
  .mail, .pin, .folder, .btn, .compose { transition: background-color .12s ease, border-color .12s ease; }
}
#walk-title { scroll-margin-top: 4rem; }