/* BrainPong — EOG Data Portal. Static, dark-first, self-contained (no external assets). */
:root{
  --bg:#0b0e14; --bg2:#0d1019; --panel:#10141d; --panel2:#141b2b;
  --line:#1e2430; --line2:#2a3550;
  /* --faint also lands on the selected row (#171d2b), the lightest ground it sits on;
     4.5:1 there is what sets its value — #6b7387 measured 3.55:1. */
  --ink:#e6e9f0; --ink2:#aeb6c7; --muted:#8b93a7; --faint:#7f879a;
  --accent:#6e8bff; --accent-ink:#aab6ff; --accent2:#2dd4bf; --accent3:#b388ff;
  --rib:#7ef0b0; --rail:#ff6b81;
  --ok:#34d399; --warn:#fbbf24; --bad:#fb7185;
  --mono:ui-monospace,Menlo,"SF Mono",monospace;
  --ui:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--ink);font:13.5px/1.5 var(--ui)}
button,input{font-family:inherit}
a{color:var(--accent-ink);text-decoration:none}
/* every control on the page is reachable by keyboard, so every control has to show it */
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.app{display:flex;flex-direction:column;height:100vh;overflow:hidden}

/* ── top bar ── */
.topbar{display:flex;align-items:center;gap:20px;padding:11px 18px;background:var(--bg2);border-bottom:1px solid var(--line);flex-wrap:wrap}
.brand{margin:0;font-size:15px;font-weight:700;white-space:nowrap}
.brand a{color:inherit}
.brand b{color:var(--accent);font-weight:800;margin-right:2px}
.brand span{color:var(--muted);font-weight:600;font-size:13px;margin-left:4px}
.corpus-stats{display:flex;gap:18px;flex-wrap:wrap;flex:1;min-width:200px}
.cstat{display:flex;flex-direction:column;line-height:1.15}
.cstat .v{font-size:15px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}
.cstat .k{font-size:10px;color:var(--faint);text-transform:uppercase;letter-spacing:.09em}
.cstat .v .qok{color:var(--ok)}.cstat .v .qwarn{color:var(--warn)}.cstat .v .qbad{color:var(--bad)}
.topactions{display:flex;gap:8px}
.tbtn{background:transparent;border:1px solid var(--line2);color:var(--ink2);border-radius:8px;padding:6px 12px;font-size:12px;cursor:pointer}
.tbtn:hover{border-color:var(--accent);color:var(--accent-ink)}

/* ── body split ── */
.body{display:grid;grid-template-columns:308px 1fr;flex:1;overflow:hidden}
.sidebar{background:var(--bg2);border-right:1px solid var(--line);display:flex;flex-direction:column;overflow:hidden}
.searchwrap{padding:12px 12px 8px}
#search{width:100%;background:var(--panel);border:1px solid var(--line2);border-radius:9px;color:var(--ink);padding:8px 11px;font-size:12.5px}
#search:focus{border-color:var(--accent)}
.filterbox{border-bottom:1px solid var(--line);min-height:0;display:flex;flex-direction:column}
.filterbox>summary{display:none}
.filters{padding:0 12px 6px;overflow:auto;max-height:46vh}
.fgroup{margin-bottom:11px}
.fgroup .fh{margin:8px 0 6px;font-size:10px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);display:flex;justify-content:space-between}
.fgroup .fh .clr{background:transparent;border:0;padding:0;font:inherit;color:var(--accent-ink);cursor:pointer;font-weight:700;letter-spacing:0;text-transform:none}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{font-size:11.5px;padding:4px 10px;border:1px solid var(--line2);border-radius:999px;color:var(--muted);background:transparent;cursor:pointer;transition:all .12s;white-space:nowrap}
.chip:hover{color:var(--ink2);border-color:#38445c}
.chip.on{color:var(--accent-ink);border-color:#6e8bff77;background:#6e8bff1c}
.chip .n{color:var(--faint);font-variant-numeric:tabular-nums;margin-left:5px;font-size:10.5px}
.chip.on .n{color:var(--accent-ink)}
.chip.static{cursor:default;opacity:.75}
.chip.st-ok.on{color:var(--ok);border-color:#34d39966;background:#34d39916}
.chip.st-railing.on{color:var(--bad);border-color:#fb718566;background:#fb718516}
.chip.st-flat.on{color:var(--warn);border-color:#fbbf2466;background:#fbbf2416}
.rangerow{display:flex;align-items:center;gap:8px;margin:5px 0;font-size:11.5px;color:var(--muted)}
.rangerow input[type=range]{flex:1;accent-color:var(--accent)}
.rangerow .rv{font-variant-numeric:tabular-nums;color:var(--ink2);min-width:56px;text-align:right;font-family:var(--mono);font-size:11px}
.daterow{display:flex;gap:6px;align-items:center;font-size:11px;color:var(--muted)}
.daterow input{background:var(--panel);border:1px solid var(--line2);border-radius:7px;color:var(--ink);padding:4px 6px;font-size:11px;font-family:var(--mono);color-scheme:dark}

.listmeta{display:flex;align-items:center;justify-content:space-between;padding:9px 14px 7px;font-size:11px;color:var(--muted);border-bottom:1px solid var(--line)}
.listmeta .sortbtn{background:transparent;border:1px solid var(--line2);color:var(--ink2);border-radius:7px;padding:3px 9px;font-size:11px;cursor:pointer}
.reclist{list-style:none;margin:0;padding:8px 10px;overflow:auto;flex:1}
.reclist li{list-style:none}
/* the row is a <button> so Enter, Space and focus come for free; these resets are only
   here to make it render exactly like the <li> it used to be */
.recitem{display:block;width:100%;text-align:left;font:inherit;color:inherit;background:transparent;
  padding:10px 11px;border:1px solid transparent;border-radius:11px;margin-bottom:7px;cursor:pointer;transition:background .12s}
.recitem:hover{background:#161b26}
.recitem.sel{background:#171d2b;border-color:var(--line2);box-shadow:0 0 0 1px #6e8bff22}
.rihead{display:flex;align-items:baseline;gap:8px}
.rdot{width:7px;height:7px;border-radius:50%;flex:none;align-self:center}
/* green on red is 1.40:1, so the shape has to say it too: disc / square / bar */
.rdot.ok{background:var(--ok)}
.rdot.railing{background:var(--bad);border-radius:1px}
.rdot.flat{background:var(--warn);height:3px;border-radius:1px}
.rsub{font-weight:700;font-size:12.5px;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1}
.rdate{color:var(--muted);font-size:11px;font-family:var(--mono);white-space:nowrap}
.rlen{color:var(--faint);font-size:11px;font-family:var(--mono)}
.ritags{display:flex;gap:4px;margin-top:4px;flex-wrap:wrap}
.ttag{font-size:9.5px;padding:1px 6px;border-radius:5px;background:#1a2233;color:var(--muted);letter-spacing:.02em}
.ttag.tour{background:#3a2d17;color:#ffcf8f}
.ttag.q-ok{background:#34d39916;color:var(--ok)}
.ttag.q-railing{background:#fb718516;color:var(--bad)}
.ttag.q-flat{background:#fbbf2416;color:var(--warn)}
.spark{width:100%;display:block;margin-top:6px}

/* ── main ── */
.main{overflow:auto;padding:0}
.detail{padding:18px 22px 40px;max-width:1200px}
.dhead{display:flex;align-items:flex-start;gap:14px;flex-wrap:wrap;margin-bottom:6px}
.dhead .dtitle{margin:0;font-size:19px;font-weight:800}
.dhead .dsub{font-size:12.5px;color:var(--muted);font-family:var(--mono)}
.dhead .opp{color:var(--accent3)}
.badges{display:flex;gap:7px;flex-wrap:wrap;margin:10px 0 18px}
.badge{font-size:11px;padding:3px 10px;border-radius:7px;border:1px solid var(--line2);color:var(--ink2);background:var(--panel)}
.badge b{color:var(--ink);font-weight:700}
.badge.tour{border-color:#a6791f88;color:#ffcf8f;background:#3a2d1733}
.badge.q-ok{border-color:#34d39955;color:var(--ok)}.badge.q-ok b{color:var(--ok)}
.badge.q-railing{border-color:#fb718555;color:var(--bad)}.badge.q-railing b{color:var(--bad)}
.badge.q-flat{border-color:#fbbf2455;color:var(--warn)}.badge.q-flat b{color:var(--warn)}

.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;margin-bottom:16px;overflow:hidden}
.cardhead{display:flex;align-items:center;gap:11px;padding:11px 15px;border-bottom:1px solid var(--line);background:var(--bg2)}
.cardhead .clabel{font-size:11px;font-weight:800;letter-spacing:.16em;color:var(--accent-ink)}
.cardhead .railpill{margin-left:auto;font-size:11px;font-family:var(--mono);font-weight:700}

.plot{padding:10px 12px}
.plot canvas{width:100%;display:block;border-radius:8px}
.stack{padding:10px 12px 13px;display:flex;flex-direction:column;gap:9px}
.chrow canvas{width:100%;display:block;border:1px solid var(--line);border-radius:8px}
/* the R−L plot takes the window drag; the electrode plots only reflect it.
   pan-y keeps a vertical swipe scrolling the page while a sideways drag
   still sets the window — touch-action:none would trap the scroll. */
.plot canvas{cursor:crosshair;touch-action:pan-y}
.zoombox{margin-left:auto;display:flex;align-items:center;gap:9px}
.zoombox[hidden]{display:none}
.zrange{font-family:var(--mono);font-size:11px;color:var(--accent-ink)}
.zreset{background:transparent;border:1px solid var(--line2);color:var(--ink2);border-radius:6px;padding:2px 9px;font-size:11px;cursor:pointer}
.zreset:hover{border-color:var(--accent);color:var(--accent-ink)}
.eventkey{padding:4px 15px 12px;font-size:11px;color:var(--muted);display:flex;gap:14px;flex-wrap:wrap}
.eventkey span b{font-weight:700}

/* dashboard (nothing selected) */
.dash{padding:34px 26px;max-width:900px;color:var(--ink2)}
.dash h2{font-size:20px;color:var(--ink);margin:0 0 6px}
.dash p{line-height:1.6;color:var(--ink2)}
.dash .qbar{display:flex;height:16px;border-radius:6px;overflow:hidden;margin:16px 0 6px;border:1px solid var(--line)}
.dash .qseg{height:100%}
.dash .qlegend{display:flex;gap:16px;font-size:12px;color:var(--muted);margin-bottom:20px}
.dash .qlegend b{color:var(--ink)}
.empty{padding:60px;color:var(--muted);text-align:center}

/* about modal */
/* a real <dialog>: Escape, the top layer, the focus trap and focus restore all come from
   the platform. The element itself fills the viewport, so it is also the scrim's hit area. */
.modal{position:fixed;inset:0;width:100%;max-width:100%;height:100%;max-height:100%;margin:0;border:0;
  background:transparent;color:var(--ink);display:flex;align-items:center;justify-content:center;z-index:50;padding:20px}
.modal:not([open]){display:none}
.modal::backdrop{background:rgba(5,7,11,.72)}
.modal .box{background:var(--panel);border:1px solid var(--line2);border-radius:16px;max-width:640px;max-height:88vh;overflow:auto;padding:26px 28px;line-height:1.6}
.modal h2{margin:0 0 10px;font-size:18px}
.modal p{color:var(--ink2);margin:0 0 12px}
.modal ul{color:var(--ink2);margin:0 0 12px;padding-left:20px}
.modal li{margin-bottom:7px}
.modal .close{margin-top:8px}

/* ── phones ──
   The desktop shell is a fixed 100vh box with two independently scrolling panes.
   That cannot work on a phone: the panes divide one short viewport, so the detail
   gets a sliver and the document itself cannot scroll to reach it. Below the
   breakpoint the shell becomes an ordinary flowing document instead. */
@media (max-width:860px){
  html,body{height:auto}
  .app{height:auto;min-height:100vh;overflow:visible}
  .body{display:block;overflow:visible}
  .sidebar{border-right:none;border-bottom:1px solid var(--line);overflow:visible}
  .main{overflow:visible}

  /* filters fold away, so a shared ?rec= link is not buried under four groups */
  .filterbox>summary{display:flex;align-items:center;gap:7px;list-style:none;cursor:pointer;
    padding:10px 14px;font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
  .filterbox>summary::-webkit-details-marker{display:none}
  .filterbox>summary::after{content:"▾";font-size:12px;letter-spacing:0}
  .filterbox[open]>summary::after{content:"▴"}
  .filterbox>summary:hover{color:var(--ink2)}
  .filters{max-height:none}

  /* the list scrolls inside a capped box; the page scrolls past it to the detail */
  .reclist{max-height:52vh}

  /* comfortable touch targets */
  .chip{padding:7px 13px;font-size:12.5px}
  .tbtn,.listmeta .sortbtn{padding:8px 13px}
  .recitem{padding:12px 12px}
  .zreset{padding:6px 12px}

  /* the top bar has to give the content room */
  .topbar{gap:10px 14px;padding:9px 14px}
  /* the base rule is flex:1 (basis 0), so width:100% is ignored and the stats
     get squeezed to a few px. Give them a real basis so they wrap to own row. */
  .corpus-stats{flex:1 0 100%;gap:14px;order:3;min-width:0}
  .cstat .v{font-size:13.5px}
  .cstat .k{font-size:9px}
  .detail{padding:14px 12px 32px}
  .dhead .dtitle{font-size:17px}
  .dhead .dsub{font-size:11.5px}
  .modal{padding:12px}
  .modal .box{padding:20px 18px}
}