/* ============================================================
   Oncobiome Evidence Atlas — design system
   Editorial / scientific: warm paper, ink, a confidence color ramp.
   ============================================================ */

:root {
  /* surfaces */
  --paper: #faf8f4;
  --paper-2: #f3efe7;
  --card: #ffffff;
  --ink: #1b1e1b;
  --ink-soft: #4a4f49;
  --ink-faint: #7c817a;
  --line: #e4ddd0;
  --line-strong: #d3caba;

  /* brand */
  --accent: #0f5f4e;
  --accent-soft: #e3efe9;

  /* confidence ramp (mirrors schema/levels.json) */
  --l1: #0f5f4e;
  --l2: #2c8c77;
  --l3: #4a90a4;
  --l4: #c98a2b;
  --l5: #8a8f98;

  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(30, 30, 20, .04), 0 12px 30px -18px rgba(30, 30, 20, .28);
  --shadow-lift: 0 2px 6px rgba(30, 30, 20, .06), 0 22px 48px -20px rgba(30, 30, 20, .38);

  --serif: "Newsreader", "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --maxw: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.55;
}

/* subtle paper texture via layered gradients */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(1200px 600px at 82% -8%, rgba(15, 95, 78, .06), transparent 60%),
    radial-gradient(900px 500px at 0% 0%, rgba(201, 138, 43, .05), transparent 55%);
  pointer-events: none;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 500; line-height: 1.14; letter-spacing: -.01em; margin: 0; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- top bar ---------- */
header.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 248, 244, .82);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner { display: flex; align-items: center; gap: 22px; height: 62px; }
.brand { display: flex; align-items: center; gap: 11px; font-family: var(--serif); font-size: 20px; letter-spacing: -.01em; }
.brand .mark {
  width: 30px; height: 30px; border-radius: 8px; flex: none;
  background: conic-gradient(from 210deg, var(--l1), var(--l2), var(--l3), var(--l4), var(--l5), var(--l1));
  box-shadow: inset 0 0 0 3px var(--paper);
}
.brand small { font-family: var(--sans); font-size: 11px; color: var(--ink-faint); letter-spacing: .12em; text-transform: uppercase; display: block; margin-top: -3px; }
.topbar nav { margin-left: auto; display: flex; gap: 20px; font-size: 14px; }
.topbar nav a { color: var(--ink-soft); }
.badge-count { font-family: var(--mono); font-size: 12px; color: var(--ink-faint); border: 1px solid var(--line-strong); border-radius: 999px; padding: 3px 10px; }

/* ---------- hero ---------- */
.hero { padding: 70px 0 34px; }
.hero .eyebrow { font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: var(--accent); font-weight: 600; }
.hero h1 { font-size: clamp(34px, 5vw, 58px); margin: 16px 0 0; max-width: 16ch; }
.hero .lede { font-size: clamp(17px, 2vw, 20px); color: var(--ink-soft); max-width: 62ch; margin: 20px 0 0; }
.hero .lede b { color: var(--ink); font-weight: 600; }
.hero-stats { display: flex; gap: 34px; margin-top: 34px; flex-wrap: wrap; }
.hero-stats .stat .n { font-family: var(--serif); font-size: 30px; }
.hero-stats .stat .k { font-size: 12px; color: var(--ink-faint); letter-spacing: .04em; text-transform: uppercase; }

/* ---------- ladder ---------- */
.ladder { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; margin: 30px 0 8px; }
.rung {
  border-radius: var(--radius-sm); padding: 15px 15px 17px; color: #fff;
  position: relative; overflow: hidden; min-height: 132px; cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease;
}
.rung:hover { transform: translateY(-3px); box-shadow: var(--shadow-lift); }
.rung .lvl { font-family: var(--mono); font-size: 12px; opacity: .85; letter-spacing: .08em; }
.rung .rname { font-family: var(--serif); font-size: 17px; margin-top: 6px; line-height: 1.15; }
.rung .rblurb { font-size: 12px; opacity: .9; margin-top: 8px; line-height: 1.4; }
.rung .rcount { position: absolute; right: 13px; bottom: 11px; font-family: var(--mono); font-size: 22px; font-weight: 500; opacity: .95; }
@media (max-width: 820px){ .ladder { grid-template-columns: repeat(2, 1fr);} }

/* ---------- controls ---------- */
.controls { position: sticky; top: 62px; z-index: 40; background: rgba(250,248,244,.9); backdrop-filter: blur(8px); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 14px 0; margin-top: 40px; }
.controls-inner { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.search { flex: 1 1 260px; display: flex; align-items: center; gap: 9px; background: var(--card); border: 1px solid var(--line-strong); border-radius: 999px; padding: 9px 16px; }
.search input { border: none; outline: none; background: transparent; font-size: 15px; width: 100%; font-family: var(--sans); color: var(--ink); }
.search svg { flex: none; color: var(--ink-faint); }
select, .segmented button {
  font-family: var(--sans); font-size: 13.5px; color: var(--ink);
  background: var(--card); border: 1px solid var(--line-strong); border-radius: 999px; padding: 9px 14px; cursor: pointer;
}
select:hover { border-color: var(--accent); }
.segmented { display: inline-flex; background: var(--paper-2); border: 1px solid var(--line-strong); border-radius: 999px; padding: 3px; gap: 2px; }
.segmented button { border: none; background: transparent; border-radius: 999px; padding: 7px 15px; color: var(--ink-soft); }
.segmented button.active { background: var(--ink); color: #fff; }
.fig-toggle { font-family: var(--sans); font-size: 13.5px; color: var(--ink-soft); background: var(--card); border: 1px solid var(--line-strong); border-radius: 999px; padding: 9px 14px; cursor: pointer; white-space: nowrap; }
.fig-toggle:hover { border-color: var(--accent); color: var(--accent); }
.fig-toggle.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.result-line { color: var(--ink-faint); font-size: 13px; margin: 18px 0 6px; font-family: var(--mono); }
.result-line button { background: none; border: none; color: var(--accent); cursor: pointer; font: inherit; padding: 0; margin-left: 8px; }

/* ---------- cards ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 18px; padding: 6px 0 40px; }
.entry {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 20px 18px; cursor: pointer; position: relative;
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
  display: flex; flex-direction: column; box-shadow: var(--shadow);
}
.entry:hover { transform: translateY(-3px); box-shadow: var(--shadow-lift); border-color: var(--line-strong); }
.entry .lvl-stripe { position: absolute; left: 0; top: 16px; bottom: 16px; width: 4px; border-radius: 4px; }
.entry .top { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; padding-left: 10px; }
.microbe-name { font-family: var(--serif); font-size: 20px; font-style: italic; line-height: 1.12; }
.cancer-name { color: var(--ink-soft); font-size: 13.5px; margin-top: 4px; }
.lvl-chip { flex: none; font-family: var(--mono); font-size: 12.5px; font-weight: 600; color: #fff; padding: 4px 9px; border-radius: 7px; letter-spacing: .02em; }
.entry .summary { padding-left: 10px; margin-top: 12px; font-size: 14px; color: var(--ink-soft); line-height: 1.5; }
.entry .meta { padding-left: 10px; margin-top: 14px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.tag { font-size: 11.5px; color: var(--ink-soft); background: var(--paper-2); border: 1px solid var(--line); border-radius: 999px; padding: 3px 9px; }
.tag.kingdom { background: var(--accent-soft); border-color: transparent; color: var(--accent); font-weight: 600; }
.tag.dir { text-transform: capitalize; }
.tag.compartment { background: #eef2f6; border-color: transparent; color: #3f5b74; font-weight: 600; }
.tag.model { background: #fdf5e8; border-color: transparent; color: #8a5b1f; font-weight: 600; }
.tag.locus { background: #eef0ea; border-color: transparent; color: #5a6448; font-weight: 600; font-family: var(--mono); font-size: 11px; }
.entry .foot { padding-left: 10px; margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: var(--ink-faint); }
.foot-right { display: inline-flex; align-items: center; gap: 8px; }
.verified-badge { display: inline-flex; align-items: center; gap: 5px; font-weight: 600; }

/* verification panel (drawer) */
.vsection { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.vstatus { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 14px; margin-bottom: 10px; }
.vdot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.vlist { list-style: none; padding: 0; margin: 0 0 12px; display: flex; flex-direction: column; gap: 7px; }
.vlist li { font-size: 13px; color: var(--ink-soft); }
.vlist .vc { color: var(--l2); font-weight: 700; }
.vlist .vd { color: #b3402e; font-weight: 700; }
.vlist .vdate { color: var(--ink-faint); font-family: var(--mono); font-size: 11px; }
.vlist .vnote { color: var(--ink-soft); font-size: 12.5px; margin: 2px 0 0 18px; font-style: italic; }
.vnone, .vdone, .vsignin { font-size: 13px; color: var(--ink-soft); margin: 0 0 10px; }
.vlink { background: none; border: none; color: var(--accent); font: inherit; font-weight: 600; cursor: pointer; padding: 0; }
.vaction { border-top: 1px solid var(--line); padding-top: 12px; }
.vchecks { display: flex; flex-direction: column; gap: 5px; margin-bottom: 10px; }
.vchecks label { font-size: 12.5px; color: var(--ink-soft); display: flex; align-items: center; gap: 7px; cursor: pointer; }
.vnoteinput { width: 100%; box-sizing: border-box; font-family: var(--sans); font-size: 13px; padding: 8px 11px; border: 1px solid var(--line-strong); border-radius: 8px; margin-bottom: 10px; }
.vbtns { display: flex; gap: 9px; }
.vconfirm, .vdispute { font-family: var(--sans); font-size: 13.5px; font-weight: 600; border-radius: 999px; padding: 9px 18px; cursor: pointer; border: 1px solid transparent; }
.vconfirm { background: var(--l2); color: #fff; }
.vconfirm:hover { filter: brightness(1.05); }
.vdispute { background: var(--card); color: #b3402e; border-color: #e0b4ab; }
.vdispute:hover { background: #fdf1ee; }
.load-more-wrap { display: flex; justify-content: center; padding: 8px 0 44px; }
.load-more { font-family: var(--sans); font-size: 14px; color: var(--ink); background: var(--card); border: 1px solid var(--line-strong); border-radius: 999px; padding: 11px 26px; cursor: pointer; }
.load-more:hover { border-color: var(--accent); color: var(--accent); }
.dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; display: inline-block; }
.iarc { font-family: var(--mono); font-size: 11px; color:#fff; background: var(--l1); padding: 2px 7px; border-radius: 5px; }

/* ---------- matrix view ---------- */
.matrix-wrap { overflow-x: auto; padding: 8px 0 44px; }
table.matrix { border-collapse: separate; border-spacing: 6px; }
table.matrix th { font-family: var(--sans); font-size: 12.5px; font-weight: 600; color: var(--ink-soft); text-align: left; padding: 6px 8px; vertical-align: bottom; }
table.matrix th.col { writing-mode: vertical-rl; transform: rotate(180deg); white-space: nowrap; max-height: 150px; }
table.matrix th.row { position: sticky; left: 0; background: var(--paper); font-style: italic; font-family: var(--serif); font-size: 14px; font-weight: 500; }
.cell { width: 40px; height: 40px; border-radius: 8px; background: var(--paper-2); border: 1px solid var(--line); }
.cell.filled { border: none; color: #fff; display: flex; align-items: center; justify-content: center; font-family: var(--mono); font-size: 11px; font-weight: 600; cursor: pointer; transition: transform .12s; }
.cell.filled:hover { transform: scale(1.12); }

/* ---------- drawer ---------- */
.scrim { position: fixed; inset: 0; background: rgba(20,20,14,.42); backdrop-filter: blur(2px); opacity: 0; pointer-events: none; transition: opacity .22s; z-index: 90; }
.scrim.open { opacity: 1; pointer-events: auto; }
.drawer {
  position: fixed; top: 0; right: 0; height: 100%; width: min(560px, 94vw);
  background: var(--paper); z-index: 100; box-shadow: -30px 0 60px -30px rgba(0,0,0,.4);
  transform: translateX(100%); transition: transform .28s cubic-bezier(.22,.61,.36,1); overflow-y: auto;
}
.drawer.open { transform: none; }
.drawer .dhead { padding: 26px 30px 22px; border-bottom: 1px solid var(--line); position: relative; }
.drawer .close { position: absolute; top: 20px; right: 22px; border: 1px solid var(--line-strong); background: var(--card); width: 34px; height: 34px; border-radius: 50%; cursor: pointer; font-size: 17px; color: var(--ink-soft); }
.drawer .close:hover { background: var(--paper-2); }
.drawer h2 { font-size: 27px; font-style: italic; padding-right: 40px; }
.drawer .sub { color: var(--ink-soft); margin-top: 6px; font-size: 15px; }
.drawer .lvl-banner { display: flex; align-items: center; gap: 12px; margin-top: 18px; padding: 12px 14px; border-radius: var(--radius-sm); color: #fff; }
.drawer .lvl-banner .big { font-family: var(--mono); font-size: 22px; font-weight: 600; }
.drawer .lvl-banner .lname { font-size: 13px; opacity: .95; line-height: 1.3; }
.dbody { padding: 22px 30px 60px; }
.dsection { margin-top: 24px; }
.dsection h4 { font-family: var(--sans); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 10px; }
.dbody p { font-size: 14.5px; color: var(--ink); margin: 0 0 6px; }
.dbody ul { margin: 0; padding-left: 18px; }
.dbody li { font-size: 14px; color: var(--ink-soft); margin-bottom: 7px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.caveat { background: #fdf5e8; border: 1px solid #f0dcae; border-left: 3px solid var(--l4); border-radius: 8px; padding: 11px 13px; font-size: 13.5px; color: #7a5b1f; margin-bottom: 8px; }
.ref { border-left: 2px solid var(--line-strong); padding: 3px 0 3px 12px; margin-bottom: 12px; font-size: 13.5px; }
.ref .rmeta { color: var(--ink-faint); font-size: 12px; font-family: var(--mono); margin-top: 3px; display: flex; gap: 10px; flex-wrap: wrap; }
.ref .role { text-transform: uppercase; letter-spacing: .06em; }
.ref .role.counter { color: #b3402e; }
.ref .retracted { color: #b3402e; font-weight: 700; }
/* figure thumbnail (in drawer) */
.oa-thumb { display: block; width: 100%; padding: 0; border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; cursor: zoom-in; background: #fff; position: relative; }
.oa-thumb img { display: block; width: 100%; height: 172px; object-fit: cover; object-position: top center; }
.oa-thumb-hint { position: absolute; left: 0; right: 0; bottom: 0; padding: 20px 11px 7px; font-size: 11px; color: #fff; font-family: var(--mono); letter-spacing: .01em; background: linear-gradient(transparent, rgba(0,0,0,.62)); text-align: left; }
.oa-thumb:hover { border-color: var(--line-strong); }
.oa-thumb:hover .oa-thumb-hint { background: linear-gradient(transparent, rgba(0,0,0,.8)); }

/* lightbox (full figure viewer) */
.lightbox { position: fixed; inset: 0; z-index: 200; background: rgba(15,15,12,.87); display: flex; align-items: center; justify-content: center; padding: 40px 32px; opacity: 0; pointer-events: none; transition: opacity .2s; }
.lightbox.open { opacity: 1; pointer-events: auto; }
.lb-inner { margin: 0; max-width: 1000px; max-height: 92vh; display: flex; flex-direction: column; align-items: center; }
.lb-inner img { max-width: 100%; max-height: 82vh; object-fit: contain; background: #fff; border-radius: 8px; }
.lb-inner figcaption { color: #e9e7e1; font-size: 12.5px; margin-top: 14px; line-height: 1.55; text-align: center; max-width: 70ch; }
.lb-inner figcaption a { color: #9fe1cb; }
.lb-close { position: fixed; top: 18px; right: 22px; z-index: 201; width: 42px; height: 42px; border-radius: 50%; border: none; background: rgba(255,255,255,.16); color: #fff; font-size: 23px; line-height: 1; cursor: pointer; }
.lb-close:hover { background: rgba(255,255,255,.3); }

.tag.locus.has-img { background: var(--accent-soft); color: var(--accent); }

/* microbe name -> filter atlas */
.microbe-link { background: none; border: none; padding: 0; margin: 0; font: inherit; color: inherit; cursor: pointer; text-align: left; }
.microbe-link:hover { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }

/* cross-atlas panel in the drawer */
.xatlas { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 16px 14px; }
.xatlas h4 { margin-bottom: 8px; }
.xatlas-sum { font-size: 13.5px; color: var(--ink-soft); margin: 0 0 12px; line-height: 1.5; }
.xlist { display: flex; flex-direction: column; gap: 6px; }
.xrow { display: flex; justify-content: space-between; align-items: center; gap: 10px; width: 100%; text-align: left; background: var(--card); border: 1px solid var(--line); border-radius: 9px; padding: 9px 11px; cursor: pointer; font: inherit; transition: border-color .12s, background .12s; }
.xrow:hover { border-color: var(--line-strong); background: #fff; }
.xrow-cancer { font-size: 13px; color: var(--ink); line-height: 1.3; }
.xrow-cancer i { font-family: var(--serif); color: var(--ink-soft); }
.xrow-meta { display: flex; align-items: center; gap: 8px; flex: none; }
.xrow-comp { font-size: 11px; color: #3f5b74; background: #eef2f6; border-radius: 999px; padding: 2px 8px; white-space: nowrap; }
.xrow-lvl { font-family: var(--mono); font-size: 11px; font-weight: 600; color: #fff; padding: 2px 7px; border-radius: 6px; }
.xsub { font-size: 12px; color: var(--ink-faint); margin: 13px 0 7px; letter-spacing: .01em; }
.ref .verified-link { color: var(--l2); font-weight: 600; }
.ref .unverified-link { color: var(--ink-faint); font-style: italic; }

/* ---------- section blocks ---------- */
section.block { padding: 56px 0; border-top: 1px solid var(--line); }
section.block h2 { font-size: clamp(26px, 3.4vw, 38px); max-width: 22ch; }
section.block .intro { color: var(--ink-soft); max-width: 66ch; margin-top: 14px; font-size: 16px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-top: 30px; }
@media (max-width: 780px){ .two-col { grid-template-columns: 1fr; } }
.principle { margin-bottom: 22px; }
.principle h4 { font-family: var(--serif); font-size: 19px; margin-bottom: 6px; }
.principle p { color: var(--ink-soft); font-size: 14.5px; margin: 0; }

/* insights */
.insights { margin-top: 30px; }
.metric-row { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin-bottom: 26px; }
.metric { background: var(--paper-2); border-radius: var(--radius-sm); padding: 15px 16px; }
.metric .mv { font-family: var(--serif); font-size: 27px; line-height: 1; }
.metric .mk { font-size: 11.5px; color: var(--ink-faint); text-transform: uppercase; letter-spacing: .04em; margin-top: 7px; }
@media (max-width: 860px){ .metric-row { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 480px){ .metric-row { grid-template-columns: repeat(2, 1fr); } }
.ipanels { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 780px){ .ipanels { grid-template-columns: 1fr; } }
.ipanel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 18px 14px; box-shadow: var(--shadow); }
.ip-h { font-family: var(--serif); font-size: 16px; margin-bottom: 14px; }
.ip-h span { display: block; font-family: var(--sans); font-size: 11.5px; color: var(--ink-faint); margin-top: 2px; letter-spacing: .02em; }
.ip-bars { display: flex; flex-direction: column; gap: 8px; }
.ip-row { display: grid; grid-template-columns: 42% 1fr auto; gap: 10px; align-items: center; }
.ip-label { font-size: 12.5px; color: var(--ink); font-style: italic; font-family: var(--serif); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ip-bar { background: var(--paper-2); border-radius: 999px; height: 9px; overflow: hidden; }
.ip-bar span { display: block; height: 100%; border-radius: 999px; }
.ip-val { font-family: var(--mono); font-size: 12px; color: var(--ink-soft); white-space: nowrap; }
.ip-val em { color: var(--ink-faint); font-style: normal; font-size: 11px; }

/* taxonomy link-outs in drawer */
.tax-links { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 10px; font-size: 12px; }
.tax-links a { color: var(--accent); font-weight: 600; }
.tax-lineage { font-family: var(--mono); font-size: 10.5px; color: var(--ink-faint); background: var(--paper-2); padding: 3px 8px; border-radius: 6px; width: 100%; word-break: break-word; }

/* downloads / citation */
.downloads { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; padding-bottom: 26px; margin-bottom: 22px; border-bottom: 1px solid var(--line); }
.downloads h4 { font-family: var(--serif); font-size: 18px; margin-bottom: 5px; }
.dl-note { font-size: 13px; color: var(--ink-soft); max-width: 60ch; margin: 0; }
.dl-note #dl-meta { color: var(--ink-faint); }
.dl-btns { display: flex; gap: 9px; flex-wrap: wrap; }
.dl-btns button { font-family: var(--sans); font-size: 13px; color: var(--ink); background: var(--card); border: 1px solid var(--line-strong); border-radius: 999px; padding: 9px 16px; cursor: pointer; }
.dl-btns button:hover { border-color: var(--accent); color: var(--accent); }

/* level detail list */
.level-detail { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin-top: 26px; }
.level-detail .lrow { display: grid; grid-template-columns: 150px 1fr; gap: 0; border-top: 1px solid var(--line); }
.level-detail .lrow:first-child { border-top: none; }
.level-detail .lhead { color: #fff; padding: 18px 18px; }
.level-detail .lhead .lnum { font-family: var(--mono); font-size: 13px; opacity: .85; }
.level-detail .lhead .ltitle { font-family: var(--serif); font-size: 18px; margin-top: 4px; }
.level-detail .lsubs { padding: 16px 18px; }
.level-detail .lsub { margin-bottom: 11px; }
.level-detail .lsub:last-child { margin-bottom: 0; }
.level-detail .lsub code { font-family: var(--mono); font-size: 12px; background: var(--paper-2); padding: 2px 7px; border-radius: 5px; color: var(--ink); margin-right: 8px; }
.level-detail .lsub .ldef { color: var(--ink-soft); font-size: 14px; }
@media (max-width: 620px){ .level-detail .lrow { grid-template-columns: 1fr; } }

/* footer */
footer { border-top: 1px solid var(--line); padding: 46px 0 70px; color: var(--ink-faint); font-size: 13.5px; }
footer .disc { max-width: 70ch; line-height: 1.6; }
footer .disc b { color: var(--ink-soft); }
.empty { text-align: center; padding: 70px 0; color: var(--ink-faint); }

/* contribution form */
.contribute { padding: 40px 0 80px; }
.c-h1 { font-size: clamp(28px, 4vw, 42px); }
.c-intro { color: var(--ink-soft); max-width: 68ch; margin: 14px 0 26px; font-size: 16px; }
.sign-gate { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; font-size: 15px; color: var(--ink-soft); }
.c-form { display: flex; flex-direction: column; gap: 22px; }
.c-block { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; box-shadow: var(--shadow); }
.c-block h3 { font-family: var(--serif); font-size: 19px; margin-bottom: 14px; }
.c-block-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.c-block-head h3 { margin: 0; }
.c-add { font-family: var(--sans); font-size: 13.5px; color: var(--accent); background: var(--accent-soft); border: none; border-radius: 999px; padding: 8px 15px; cursor: pointer; font-weight: 600; }
.c-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; }
.c-grid label, .mr-file { display: flex; flex-direction: column; gap: 5px; font-size: 12.5px; color: var(--ink-faint); font-weight: 600; position: relative; }
.c-form input, .c-form select, .c-form textarea { font-family: var(--sans); font-size: 14px; color: var(--ink); padding: 9px 11px; border: 1px solid var(--line-strong); border-radius: 8px; background: var(--card); font-weight: 400; }
.c-form textarea { width: 100%; box-sizing: border-box; resize: vertical; }
.c-help { font-size: 13px; color: var(--ink-faint); margin: 0 0 10px; }
.microbe-row { position: relative; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 16px; margin-bottom: 14px; background: var(--paper); }
.mr-remove { position: absolute; top: 10px; right: 12px; width: 26px; height: 26px; border-radius: 50%; border: 1px solid var(--line-strong); background: var(--card); cursor: pointer; color: var(--ink-soft); }
.mr-namewrap { grid-column: 1 / -1; }
.mr-gtdb { font-family: var(--mono); font-size: 10.5px; color: var(--ink-faint); font-weight: 400; margin-top: 4px; word-break: break-word; }
.ac-list { display: none; position: absolute; top: 100%; left: 0; right: 0; z-index: 30; background: var(--card); border: 1px solid var(--line-strong); border-radius: 8px; box-shadow: var(--shadow-lift); max-height: 240px; overflow-y: auto; margin-top: 3px; }
.ac-list.open { display: block; }
.ac-item { padding: 8px 11px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 10px; font-weight: 400; }
.ac-item:hover { background: var(--paper-2); }
.ac-item i { font-family: var(--serif); font-size: 14px; color: var(--ink); }
.ac-src { font-family: var(--mono); font-size: 10px; padding: 2px 7px; border-radius: 999px; }
.ac-src.gtdb { background: var(--accent-soft); color: var(--accent); }
.ac-src.atlas { background: var(--paper-2); color: var(--ink-faint); }
.mr-attach { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--line); }
.mr-file input { font-weight: 400; }
.mr-file-msg { font-size: 12px; color: var(--ink-soft); margin-top: 6px; display: inline-block; }
.c-submit { display: flex; align-items: center; gap: 16px; }
.c-submit button { font-family: var(--sans); font-size: 15px; font-weight: 600; color: #fff; background: var(--accent); border: none; border-radius: 999px; padding: 12px 28px; cursor: pointer; }
.c-submit button:disabled { opacity: .5; cursor: default; }
.c-msg { font-size: 13.5px; }

.hidden { display: none !important; }