:root{
  --ink:#1B1E23;
  --ink-soft:#3A3F47;
  --paper:#F3EFE7;
  --paper-dim:#E8E2D5;
  --amber:#D98F2B;
  --amber-deep:#B5701A;
  --teal:#3E6B64;
  --alert:#B5442E;
  --alert-bg:#F5DFD8;
  --ok-bg:#DCE7DE;
  --line: rgba(27,30,35,0.14);
}
*{box-sizing:border-box;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Inter',sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{ color:var(--teal); }
.mono{font-family:'IBM Plex Mono',monospace;}
.display{font-family:'Barlow Condensed',sans-serif; text-transform:uppercase; letter-spacing:0.02em;}

/* ---------- Header / Nav ---------- */
header.manifest{
  background:var(--ink);
  color:var(--paper);
  padding:0;
  border-bottom:6px solid var(--amber);
}
.nav-inner{
  max-width:1180px;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 20px;
  flex-wrap:wrap;
  gap:12px;
}
.brand{
  display:flex;
  align-items:baseline;
  gap:8px;
}
.brand .mark{
  font-family:'Barlow Condensed',sans-serif;
  font-weight:800;
  font-size:26px;
  letter-spacing:0.01em;
  text-transform:uppercase;
  color:var(--paper);
}
.brand .mark span{ color:var(--amber); }
.brand .tag{
  font-size:11px;
  color:#C9C2B2;
  letter-spacing:0.03em;
}
nav.links{ display:flex; gap:22px; }
nav.links a{
  color:#C9C2B2;
  text-decoration:none;
  font-size:13.5px;
  font-weight:600;
  letter-spacing:0.02em;
  padding-bottom:3px;
  border-bottom:2px solid transparent;
}
nav.links a:hover{ color:var(--paper); }
nav.links a.active{ color:var(--amber); border-bottom-color:var(--amber); }

.page-intro{
  padding:22px 32px 24px;
  background:var(--ink);
  color:var(--paper);
}
.page-intro h1{
  font-family:'Barlow Condensed',sans-serif;
  font-weight:800;
  font-size:32px;
  letter-spacing:0.01em;
  margin:0 0 6px;
  text-transform:uppercase;
}
.page-intro p{ margin:0; color:#C9C2B2; font-size:14px; max-width:680px; }

.wrap{ max-width:1180px; margin:0 auto; padding:28px 20px 60px; }
.wrap.narrow{ max-width:800px; }

/* ---------- Buttons ---------- */
button{
  font-family:'Inter',sans-serif;
  font-weight:600;
  font-size:13px;
  border:1.5px solid var(--ink);
  background:var(--ink);
  color:var(--paper);
  padding:9px 16px;
  border-radius:2px;
  cursor:pointer;
  transition:opacity 0.15s;
}
button:hover{ opacity:0.85; }
button.ghost{ background:transparent; color:var(--ink); }
button.amber{ background:var(--amber); border-color:var(--amber-deep); color:var(--ink); }
button.small{ padding:5px 10px; font-size:12px; }

/* ---------- Dropzone ---------- */
.dropzone{
  border:2px dashed var(--ink);
  background:#fff;
  border-radius:2px;
  padding:26px;
  text-align:center;
  cursor:pointer;
  transition:background 0.15s, border-color 0.15s;
  margin-bottom:22px;
}
.dropzone.drag{ background:var(--ok-bg); border-color:var(--teal); }
.dropzone h3{ font-family:'Barlow Condensed',sans-serif; text-transform:uppercase; font-size:20px; margin:0 0 6px; letter-spacing:0.03em;}
.dropzone p{ margin:0; color:var(--ink-soft); font-size:13.5px; }
.dropzone input{ display:none; }
.dz-actions{ display:flex; gap:10px; justify-content:center; margin-top:14px; flex-wrap:wrap;}

/* ---------- Stats ---------- */
.stats-row{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(150px,1fr));
  gap:1px;
  background:var(--ink);
  margin-bottom:22px;
  border:1px solid var(--ink);
}
.stat{ background:var(--paper); padding:16px 16px 14px; }
.stat .label{ font-size:11px; text-transform:uppercase; letter-spacing:0.08em; color:var(--ink-soft); font-weight:600; }
.stat .value{ font-family:'IBM Plex Mono',monospace; font-size:24px; font-weight:600; margin-top:4px; }
.stat.flagged .value{ color:var(--alert); }
.stat.good .value{ color:var(--teal); }

/* ---------- Panels ---------- */
.panel{ background:#fff; border:1px solid var(--line); margin-bottom:20px; }
.panel-head{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 16px; border-bottom:1px solid var(--line); flex-wrap:wrap; gap:10px;
}
.panel-head h2{ font-family:'Barlow Condensed',sans-serif; text-transform:uppercase; font-size:19px; letter-spacing:0.03em; margin:0; }
.panel-head .sub{ font-size:12px; color:var(--ink-soft); margin-top:2px;}
.panel-body{ padding:18px 16px; }
.panel-body h3{ font-family:'Barlow Condensed',sans-serif; text-transform:uppercase; font-size:17px; letter-spacing:0.02em; margin:22px 0 8px; }
.panel-body h3:first-child{ margin-top:0; }
.panel-body p{ font-size:14px; line-height:1.65; color:var(--ink-soft); margin:0 0 12px; }
.panel-body ul{ font-size:14px; line-height:1.7; color:var(--ink-soft); padding-left:20px; }
.panel-body li{ margin-bottom:4px; }
.panel-body strong{ color:var(--ink); }

.controls{ display:flex; gap:8px; align-items:center; flex-wrap:wrap; }
.controls input[type=text]{
  padding:7px 10px; border:1.5px solid var(--ink); border-radius:2px;
  font-family:'Inter',sans-serif; font-size:13px; min-width:180px;
}
select{ padding:7px 8px; border:1.5px solid var(--ink); border-radius:2px; font-family:'Inter',sans-serif; font-size:13px; background:#fff; }

/* ---------- Table ---------- */
table{ width:100%; border-collapse:collapse; font-size:13px; }
thead th{
  text-align:left; font-family:'Barlow Condensed',sans-serif; text-transform:uppercase;
  font-size:12px; letter-spacing:0.04em; color:var(--ink-soft); padding:9px 10px;
  border-bottom:1.5px solid var(--ink); cursor:pointer; white-space:nowrap;
}
thead th:hover{ color:var(--ink); }
tbody td{ padding:9px 10px; border-bottom:1px solid var(--line); vertical-align:middle; }
tbody tr.parent-row{ cursor:pointer; }
tbody tr.parent-row:hover{ background:var(--paper-dim); }
tbody tr.child-row{ background:#FAF8F3; display:none; }
tbody tr.child-row.open{ display:table-row; }
tbody tr.child-row td{ padding-left:26px; color:var(--ink-soft); font-size:12.5px; }
.num{ font-family:'IBM Plex Mono',monospace; text-align:right; }
td.num, th.num{ text-align:right; }

.badge{ display:inline-block; font-size:11px; font-weight:600; padding:2px 7px; border-radius:2px; font-family:'Inter',sans-serif; }
.badge.flag{ background:var(--alert-bg); color:var(--alert); }
.badge.ok{ background:var(--ok-bg); color:var(--teal); }

.caret{ display:inline-block; width:10px; transition:transform 0.15s; }
.caret.open{ transform:rotate(90deg); }

.exp-input{ width:56px; padding:3px 5px; font-family:'IBM Plex Mono',monospace; font-size:12px; border:1px solid var(--line); border-radius:2px; }

.empty-state{ text-align:center; padding:50px 20px; color:var(--ink-soft); }
.empty-state h3{ font-family:'Barlow Condensed',sans-serif; text-transform:uppercase; font-size:20px; color:var(--ink); }

footer.site-footer{ text-align:center; padding:20px; color:var(--ink-soft); font-size:12px; border-top:1px solid var(--line); }
footer.site-footer a{ color:var(--ink-soft); }

.top-bottom{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
@media (max-width:720px){ .top-bottom{ grid-template-columns:1fr; } }
.tb-list{ list-style:none; margin:0; padding:0; }
.tb-list li{ display:flex; justify-content:space-between; padding:7px 0; border-bottom:1px solid var(--line); font-size:13px; }
.tb-list li span.name{ max-width:65%; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.tb-list li span.val{ font-family:'IBM Plex Mono',monospace; }

.hint{ font-size:12px; color:var(--ink-soft); padding:10px 16px; border-top:1px solid var(--line); background:var(--paper-dim); }

/* ---------- Trust strip (About / Terms accents) ---------- */
.stamp{
  display:inline-block; border:1.5px solid var(--amber-deep); color:var(--amber-deep);
  font-family:'Barlow Condensed',sans-serif; font-weight:700; font-size:12px;
  letter-spacing:0.15em; text-transform:uppercase; padding:4px 10px; transform:rotate(-2deg);
  margin-bottom:14px;
}
.feature-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:1px; background:var(--ink); border:1px solid var(--ink); margin:18px 0; }
.feature-grid .f{ background:#fff; padding:16px; }
.feature-grid .f .n{ font-family:'IBM Plex Mono',monospace; font-size:11px; color:var(--amber-deep); font-weight:600; }
.feature-grid .f h4{ font-family:'Barlow Condensed',sans-serif; text-transform:uppercase; font-size:16px; margin:4px 0 6px; letter-spacing:0.02em; }
.feature-grid .f p{ font-size:13px; color:var(--ink-soft); margin:0; line-height:1.5; }

/* ---------- Dark mode ---------- */
body.dark{
  --ink:#EDE9DF;
  --ink-soft:#B7B2A5;
  --paper:#181A1E;
  --paper-dim:#232529;
  --line: rgba(237,233,223,0.14);
}
body.dark .panel, body.dark .stat, body.dark .dropzone{ background:#1F2125; }
body.dark tbody tr.child-row{ background:#202226; }
body.dark thead th{ color:var(--ink-soft); }
body.dark .exp-input{ background:#1F2125; color:var(--ink); }
body.dark select, body.dark .controls input[type=text]{ background:#1F2125; color:var(--ink); border-color:var(--ink); }
body.dark button.ghost{ color:var(--ink); border-color:var(--ink); }
.theme-toggle{
  background:transparent; border:1.5px solid var(--paper); color:var(--paper);
  padding:6px 10px; font-size:12px;
}

/* ---------- Quick tips ---------- */
.tips-box{
  display:flex; gap:12px; align-items:flex-start;
  background:var(--ok-bg); border:1px solid var(--teal);
  padding:12px 14px; margin-bottom:18px; font-size:13px; color:var(--ink);
}
.tips-box strong{ display:block; margin-bottom:2px; }
.tips-box .x{ margin-left:auto; cursor:pointer; font-weight:700; color:var(--ink-soft); background:none; border:none; font-size:16px; padding:0 4px;}

.toolbar{ display:flex; gap:8px; align-items:center; }

/* ---------- Calculator ---------- */
.calc-grid{ display:grid; grid-template-columns:1fr 1fr; gap:24px; }
@media (max-width:760px){ .calc-grid{ grid-template-columns:1fr; } }
.field{ margin-bottom:14px; }
.field label{ display:block; font-size:12px; font-weight:600; text-transform:uppercase; letter-spacing:0.03em; color:var(--ink-soft); margin-bottom:5px; }
.field input, .field select{
  width:100%; padding:9px 10px; border:1.5px solid var(--ink); border-radius:2px;
  font-family:'IBM Plex Mono',monospace; font-size:14px; background:#fff;
}
body.dark .field input, body.dark .field select{ background:#1F2125; color:var(--ink); }
.toggle-pair{ display:flex; border:1.5px solid var(--ink); width:fit-content; margin-bottom:16px; }
.toggle-pair button{ border:none; background:transparent; color:var(--ink); padding:8px 20px; }
.toggle-pair button.active{ background:var(--ink); color:var(--paper); }
.result-box{ background:var(--ink); color:var(--paper); padding:20px; }
.result-box .row{ display:flex; justify-content:space-between; padding:7px 0; border-bottom:1px solid rgba(243,239,231,0.15); font-size:13.5px; }
.result-box .row.total{ font-weight:700; font-size:17px; border-bottom:none; padding-top:12px; font-family:'IBM Plex Mono',monospace; color:var(--amber); }
.result-box .row.negative .val{ color:#E28A72; }

/* ---------- Guide page ---------- */
.step{ display:grid; grid-template-columns:auto 1fr; gap:16px; margin-bottom:26px; align-items:start; }
.step .num-badge{
  width:32px; height:32px; border-radius:50%; background:var(--ink); color:var(--paper);
  display:flex; align-items:center; justify-content:center; font-family:'IBM Plex Mono',monospace; font-weight:600; flex-shrink:0;
}
.step img{ max-width:100%; border:1px solid var(--line); margin-top:8px; display:block; }
.step h4{ font-family:'Barlow Condensed',sans-serif; text-transform:uppercase; font-size:17px; margin:4px 0 4px; }
.step p{ font-size:13.5px; color:var(--ink-soft); line-height:1.6; margin:0 0 6px; }

/* ---------- FAQ ---------- */
.faq-item{ border-bottom:1px solid var(--line); }
.faq-q{ padding:14px 4px; cursor:pointer; font-weight:600; display:flex; justify-content:space-between; align-items:center; }
.faq-a{ display:none; padding:0 4px 14px; color:var(--ink-soft); font-size:14px; line-height:1.6; }
.faq-item.open .faq-a{ display:block; }
.faq-item.open .faq-q .plus{ transform:rotate(45deg); }
.faq-q .plus{ transition:transform 0.15s; font-size:18px; }

/* ---------- Owner card ---------- */
.owner-card{ display:flex; gap:18px; align-items:center; background:var(--paper-dim); padding:18px; margin-bottom:20px; border:1px solid var(--line); }
.owner-card img{ width:84px; height:84px; border-radius:50%; object-fit:cover; border:2px solid var(--amber); flex-shrink:0; }
.owner-card h4{ font-family:'Barlow Condensed',sans-serif; text-transform:uppercase; font-size:20px; margin:0 0 2px; }
.owner-card .role{ color:var(--amber-deep); font-weight:600; font-size:13px; margin-bottom:4px; }
.owner-card p{ font-size:13px; color:var(--ink-soft); margin:0; }
@media (max-width:520px){ .owner-card{ flex-direction:column; text-align:center; } }

/* ---------- Chart ---------- */
.chart-wrap{ padding:16px; overflow-x:auto; }
.bar-row{ display:flex; align-items:center; gap:10px; margin-bottom:8px; font-size:12px; }
.bar-row .lbl{ width:110px; flex-shrink:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; font-family:'IBM Plex Mono',monospace; }
.bar-row .track{ flex:1; background:var(--paper-dim); height:16px; position:relative; }
.bar-row .fill{ background:var(--amber); height:100%; }
.bar-row .fill.down{ background:var(--alert); }
.bar-row .amt{ width:90px; text-align:right; font-family:'IBM Plex Mono',monospace; flex-shrink:0; }

/* ---------- Delta pill ---------- */
.delta{ font-family:'IBM Plex Mono',monospace; font-size:12px; font-weight:600; padding:2px 6px; border-radius:2px; }
.delta.up{ background:var(--ok-bg); color:var(--teal); }
.delta.down{ background:var(--alert-bg); color:var(--alert); }
.delta.flat{ background:var(--paper-dim); color:var(--ink-soft); }

.file-chip-row{ display:flex; gap:8px; flex-wrap:wrap; margin-bottom:14px; }
.file-chip{ display:flex; align-items:center; gap:6px; background:var(--paper-dim); border:1px solid var(--line); padding:5px 8px 5px 10px; font-size:12px; }
.file-chip button{ background:none; border:none; color:var(--alert); cursor:pointer; font-weight:700; padding:0 2px; font-size:13px; }