:root,:root[data-theme="dark"]{
  --bg:#0e1012; --surface:#15181c; --surface-2:#1b1f24; --surface-3:#232830;
  --border:#272c33; --border-strong:#363d47;
  --text:#e7eaee; --muted:#98a1ac; --faint:#6a7480;
  --accent:#3b82f6; --accent-hover:#5a95f7; --accent-quiet:rgba(59,130,246,.16);
  --ok:#3fa467; --ok-bg:rgba(63,164,103,.16);
  --warn:#cf9a27; --warn-bg:rgba(207,154,39,.16);
  --bad:#e05545; --bad-bg:rgba(224,85,69,.16);
  --info:#4a90e8; --info-bg:rgba(74,144,232,.16);
  --shadow:0 1px 2px rgba(0,0,0,.4),0 6px 16px -6px rgba(0,0,0,.5);
}
:root[data-theme="light"]{
  --bg:#f6f7f9; --surface:#ffffff; --surface-2:#f3f5f7; --surface-3:#e9ecef;
  --border:#e4e7eb; --border-strong:#cfd4da;
  --text:#1a1d21; --muted:#5b646e; --faint:#8b929b;
  --accent:#1f6fd4; --accent-hover:#1a5fb8; --accent-quiet:rgba(31,111,212,.1);
  --ok:#1f7a4d; --ok-bg:rgba(31,122,77,.1);
  --warn:#8a5d00; --warn-bg:rgba(138,93,0,.1);
  --bad:#c23b2b; --bad-bg:rgba(194,59,43,.1);
  --info:#1f6fd4; --info-bg:rgba(31,111,212,.1);
  --shadow:0 1px 2px rgba(16,24,40,.06),0 6px 16px -6px rgba(16,24,40,.12);
}
*{box-sizing:border-box}
html{--font:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,'SF Mono','Cascadia Code',Menlo,Consolas,monospace}
body{margin:0;background:var(--bg);color:var(--text);font:14px/1.5 var(--font);
  -webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}
.mono{font-family:var(--mono)}
.num{font-variant-numeric:tabular-nums}

h1{font:600 27px/1.2 var(--font);letter-spacing:-.01em;margin:22px 0 6px}
h2{font:600 19px/1.25 var(--font);letter-spacing:-.005em;margin:24px 0 12px}
h3{font:600 15px/1.3 var(--font);margin:0 0 6px}

header.topbar{position:sticky;top:0;z-index:30;height:52px;background:var(--surface);
  border-bottom:1px solid var(--border)}
.topbar .container{display:flex;align-items:center;gap:22px;height:100%}
.brand{display:inline-flex;align-items:center;gap:4px;font:600 15px var(--font);color:var(--text)}
.brand:hover{text-decoration:none}
nav.main{display:flex;gap:4px;margin-left:4px}
nav.main a{font-size:13px;color:var(--muted);padding:6px 10px;border-radius:6px}
nav.main a:hover{color:var(--text);background:var(--surface-2);text-decoration:none}
.spacer{flex:1}
.topbar .muted{font-size:13px}
.theme-toggle{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:6px;
  background:transparent;border:1px solid var(--border);color:var(--muted);cursor:pointer;padding:0}
.theme-toggle:hover{color:var(--text);background:var(--surface-2);border-color:var(--border-strong)}
.theme-toggle .to-dark{display:none}
:root[data-theme="light"] .theme-toggle .to-light{display:none}
:root[data-theme="light"] .theme-toggle .to-dark{display:inline}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;background:var(--accent);
  color:#fff;border:1px solid var(--accent);border-radius:6px;padding:7px 14px;
  font:500 13px var(--font);cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:background .12s ease,border-color .12s ease}
.btn:hover{background:var(--accent-hover);border-color:var(--accent-hover);text-decoration:none}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.btn.secondary{background:var(--surface-2);color:var(--text);border-color:var(--border-strong)}
.btn.secondary:hover{background:var(--surface-3)}
.btn.ghost{background:transparent;color:var(--text);border-color:var(--border-strong)}
.btn.ghost:hover{background:var(--surface-2)}
.btn.danger{background:var(--bad);border-color:var(--bad);color:#fff}
.btn.danger:hover{filter:brightness(1.08)}
.btn.sm{padding:5px 10px;font-size:12px;border-radius:5px}
.btn.lg{padding:9px 18px;font-size:14px}

.grid{display:grid;gap:16px}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-2{grid-template-columns:repeat(2,1fr)}
@media(max-width:880px){.cols-3,.cols-2{grid-template-columns:1fr}}

.card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:18px}
.card h3{margin:0 0 6px}
.stat{font:600 26px var(--font);font-variant-numeric:tabular-nums;letter-spacing:-.01em}

table{width:100%;border-collapse:collapse;font-size:13px}
th{font:600 11px var(--font);text-transform:uppercase;letter-spacing:.04em;color:var(--faint);
  text-align:left;padding:8px 12px;border-bottom:1px solid var(--border);background:var(--surface-2)}
td{padding:7px 12px;border-bottom:1px solid var(--border);font-variant-numeric:tabular-nums}
tr:last-child td{border-bottom:0}
tbody tr{transition:background .1s ease}
tbody tr:hover{background:var(--surface-2)}

.tag{display:inline-block;font:600 11px var(--font);padding:2px 8px;border-radius:999px;
  text-transform:capitalize}
.tag.green{color:var(--ok);background:var(--ok-bg)}
.tag.amber{color:var(--warn);background:var(--warn-bg)}
.tag.red{color:var(--bad);background:var(--bad-bg)}
.tag.gray{color:var(--muted);background:var(--surface-3)}
.tag.blue{color:var(--info);background:var(--info-bg)}

form.stack{display:flex;flex-direction:column;gap:13px;max-width:420px}
label{display:block;font-size:12px;font-weight:500;color:var(--muted);margin-bottom:5px}
input,select,textarea{width:100%;background:var(--surface-2);border:1px solid var(--border-strong);
  color:var(--text);padding:8px 10px;border-radius:6px;font:13.5px var(--font);
  transition:border-color .12s,box-shadow .12s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);
  box-shadow:0 0 0 3px var(--accent-quiet)}
input[type=range]{padding:0;accent-color:var(--accent);background:transparent;border:0}
.row{display:flex;gap:13px}
.row > *{flex:1}

.alert{padding:11px 14px;border-radius:6px;margin:13px 0;font-size:13.5px;border:1px solid var(--border)}
.alert.error{border-color:var(--bad);background:var(--bad-bg);color:var(--bad)}
.alert.ok{border-color:var(--ok);background:var(--ok-bg);color:var(--ok)}
.center-narrow{max-width:420px;margin:56px auto}

.price{font:600 26px var(--font);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.price small{font-size:13px;color:var(--muted);font-weight:400}

footer{color:var(--faint);font-size:12px;text-align:center;padding:34px 0;margin-top:48px;
  border-top:1px solid var(--border)}
footer a{color:var(--muted)}
footer a:hover{color:var(--text)}

.legal{max-width:72ch;padding:6px 0 20px}
.legal h2{margin:26px 0 8px}
.legal h3{margin:18px 0 6px}
.legal p{margin:0 0 10px}
.legal ul{margin:0 0 10px;padding-left:22px}
.legal li{margin:3px 0}
.adminbar{background:var(--surface-2);border-bottom:1px solid var(--border)}
.adminbar nav a{color:var(--muted)}

/* ---------- store ---------- */
.page-head{padding:30px 0 6px;border-bottom:1px solid var(--border);margin-bottom:8px}
.page-head h1{margin:0 0 6px}
.page-head p{margin:0;color:var(--muted);font-size:14px;max-width:60ch}
.page-head .head-actions{margin-top:16px;display:flex;gap:10px;flex-wrap:wrap}

.valuestrip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--border);
  border:1px solid var(--border);border-radius:8px;overflow:hidden;margin:22px 0 6px}
@media(max-width:760px){.valuestrip{grid-template-columns:1fr 1fr}}
.valuestrip .vi{background:var(--surface);padding:14px 16px}
.valuestrip .vi h4{margin:0 0 3px;font:600 13px var(--font)}
.valuestrip .vi p{margin:0;color:var(--muted);font-size:12.5px;line-height:1.45}

.cat-head{display:flex;align-items:baseline;gap:12px;margin:30px 0 0}
.cat-head h2{margin:0}
.cat-head .count{font-size:12px;color:var(--faint);font-variant-numeric:tabular-nums}
.cat-head .headline{margin-left:auto;font-size:12.5px;color:var(--muted)}

.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:14px}
@media(max-width:920px){.plan-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.plan-grid{grid-template-columns:1fr}}
.plan{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);
  border-radius:8px;padding:17px;transition:border-color .14s ease,box-shadow .14s ease}
.plan:hover{border-color:var(--border-strong);box-shadow:var(--shadow)}
.plan-top{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.plan-name{margin:0;font:600 15px var(--font)}
.plan-desc{margin:6px 0 0;color:var(--muted);font-size:12.5px;line-height:1.45}
.plan-specs{margin:14px 0;border-top:1px solid var(--border)}
.srow{display:flex;justify-content:space-between;align-items:baseline;padding:6px 0;font-size:12.5px;
  border-bottom:1px solid var(--border)}
.srow:last-child{border-bottom:0}
.srow .k{color:var(--muted)}
.srow .v{font-variant-numeric:tabular-nums;font-weight:500}
.plan-foot{margin-top:auto;display:flex;align-items:flex-end;justify-content:space-between;gap:10px;
  padding-top:4px}
.plan-price .from{display:block;font-size:11px;color:var(--faint);margin-bottom:1px}
.plan-price .amt{font:600 22px var(--font);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.plan-price .amt small{font-size:12px;color:var(--muted);font-weight:400}
.plan-stock{font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}

/* ---------- configurator ---------- */
.cfg-grid{display:grid;grid-template-columns:minmax(0,1fr) 350px;gap:18px;align-items:start;margin-top:18px}
@media(max-width:860px){.cfg-grid{grid-template-columns:1fr}}
.cfg-config{display:flex;flex-direction:column;gap:20px}
.cfg-config h3{margin:0}
.cfg-divider{height:1px;background:var(--border)}
.cfg-field-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.cfg-field-head label{margin:0;font-size:13px;font-weight:500;color:var(--text)}
.cfg-val{font:600 12.5px var(--mono);font-variant-numeric:tabular-nums;color:var(--accent);
  background:var(--accent-quiet);padding:2px 9px;border-radius:5px}
.cfg-bounds{display:flex;justify-content:space-between;font-size:11px;color:var(--faint);
  margin-top:7px;font-variant-numeric:tabular-nums}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:6px;border-radius:999px;
  background:var(--surface-3);outline:none;padding:0;border:0}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;
  border-radius:50%;background:var(--accent);border:3px solid var(--surface);cursor:pointer;
  box-shadow:0 1px 3px rgba(0,0,0,.4)}
input[type=range]::-moz-range-thumb{width:15px;height:15px;border-radius:50%;background:var(--accent);
  border:3px solid var(--surface);cursor:pointer}
input[type=range]:focus{box-shadow:0 0 0 3px var(--accent-quiet)}
.summary{position:sticky;top:66px;background:var(--surface);border:1px solid var(--border);
  border-radius:8px;padding:18px}
.summary h3{margin:0 0 10px}
.sum-row{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:6px 0;font-size:13px}
.sum-row .k{color:var(--muted)}
.sum-row .v{font-variant-numeric:tabular-nums;white-space:nowrap}
.sum-row.sub{border-top:1px solid var(--border);margin-top:6px;padding-top:10px}
.sum-row.sub .k{color:var(--text);font-weight:600}
.sum-row.sub .v{font-weight:600}
.sum-rule{height:1px;background:var(--border);margin:10px 0}
.sum-total{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.sum-total .k{font-weight:600;font-size:14px}
.sum-total .v{font:600 23px var(--font);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.sum-note{font-size:12px;color:var(--muted);margin:8px 0 0;line-height:1.45}
.sum-note.ok{color:var(--ok)}
.sum-note.err{color:var(--danger)}
.sum-promo{margin:10px 0;padding-top:10px;border-top:1px solid var(--border)}
.sum-promo label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}
.sum-promo-row{display:flex;gap:6px;align-items:center}
.sum-promo-row input{flex:1;min-width:0}
.sum-promo-row .btn{flex-shrink:0;width:auto;margin-top:0}
.summary>.btn{width:100%;margin-top:14px}
.segmented{display:flex;flex-wrap:wrap;gap:6px}
.segmented.col{flex-direction:column;align-items:stretch}
.segmented.col .seg{width:100%}
.seg{position:relative;display:inline-flex;align-items:center;gap:7px;cursor:pointer;
  padding:8px 13px;border:1px solid var(--border-strong);border-radius:6px;background:var(--surface-2);
  font-size:13px;color:var(--text);user-select:none;transition:border-color .12s,background .12s,color .12s}
.seg:hover{border-color:var(--accent)}
.seg input{position:absolute;opacity:0;width:0;height:0;margin:0}
.seg:has(input:checked){background:var(--accent-quiet);border-color:var(--accent);color:var(--accent)}
.seg:focus-within{box-shadow:0 0 0 3px var(--accent-quiet)}
.seg-badge{font:600 10.5px var(--font);color:var(--ok);background:var(--ok-bg);padding:1px 6px;border-radius:999px}

/* ---------- invoice ---------- */
.inv-actions{display:flex;align-items:center;gap:10px;margin:22px auto 16px;max-width:820px}
.inv-actions .spacer{flex:1}
.invoice{background:var(--surface);border:1px solid var(--border);border-radius:10px;
  padding:36px 40px;max-width:820px;margin:0 auto;box-shadow:var(--shadow)}
.inv-head{display:flex;justify-content:space-between;align-items:flex-start;gap:24px;
  padding-bottom:24px;border-bottom:1px solid var(--border)}
.inv-co{font:600 18px var(--font);letter-spacing:-.01em}
.inv-addr{margin-top:6px}
.inv-line{font-size:12.5px;color:var(--muted);line-height:1.55}
.inv-doc-title{text-align:right;display:flex;flex-direction:column;align-items:flex-end;gap:6px}
.inv-doc-label{font:600 12px var(--font);text-transform:uppercase;letter-spacing:.12em;color:var(--faint)}
.inv-doc-no{font:600 22px var(--font);letter-spacing:-.01em}
.inv-parties{display:grid;grid-template-columns:1fr auto;gap:32px;padding:24px 0;
  border-bottom:1px solid var(--border)}
@media(max-width:640px){.inv-parties{grid-template-columns:1fr}}
.inv-section-label{font:600 10.5px var(--font);text-transform:uppercase;letter-spacing:.1em;
  color:var(--faint);margin-bottom:6px}
.inv-party-name{font:600 14px var(--font);margin-bottom:2px}
.inv-meta{min-width:260px}
.inv-meta-row{display:flex;justify-content:space-between;gap:24px;padding:4px 0;font-size:13px}
.inv-meta-row .k{color:var(--muted)}
.inv-meta-row.balance{margin-top:6px;padding-top:8px;border-top:1px solid var(--border)}
.inv-meta-row.balance .k{color:var(--text);font-weight:600}
.inv-meta-row.balance .v{font-weight:600}
table.inv-items{margin-top:8px}
.invoice .inv-summary{margin-left:auto;width:300px;max-width:100%;margin-top:18px}
.inv-sum-row{display:flex;justify-content:space-between;gap:24px;padding:5px 0;font-size:13px}
.inv-sum-row .k{color:var(--muted)}
.inv-sum-row.total{margin-top:4px;padding-top:9px;border-top:1px solid var(--border)}
.inv-sum-row.total .k,.inv-sum-row.total .v{font-weight:600;color:var(--text)}
.inv-sum-row.due{margin-top:4px;padding-top:9px;border-top:2px solid var(--border-strong)}
.inv-sum-row.due .k{font-weight:600;font-size:14px}
.inv-sum-row.due .v{font:600 17px var(--font);letter-spacing:-.01em}
.inv-notes{margin-top:24px;padding-top:18px;border-top:1px solid var(--border)}
.inv-notes p{margin:0;font-size:13px;color:var(--muted);line-height:1.55;white-space:pre-wrap}

/* ---------- dropdown ---------- */
.dropdown{position:relative;display:inline-block}
.dropdown>summary{list-style:none;cursor:pointer}
.dropdown>summary::-webkit-details-marker{display:none}
.dropdown>summary::marker{content:""}
.dropdown-toggle .chev{transition:transform .15s ease;margin-left:1px;color:var(--muted)}
.dropdown[open]>summary .chev{transform:rotate(180deg)}
.dropdown-menu{position:absolute;right:0;top:calc(100% + 6px);z-index:40;min-width:208px;
  background:var(--surface);border:1px solid var(--border-strong);border-radius:8px;
  padding:5px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:1px;
  animation:dropdown-in .12s ease}
@keyframes dropdown-in{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
.dropdown-item{display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:7px 10px;border-radius:6px;font-size:13px;color:var(--text);text-decoration:none;
  white-space:nowrap}
.dropdown-item:hover{background:var(--surface-2);text-decoration:none}
.dropdown-item.is-active{color:var(--accent);background:var(--accent-quiet)}
.dropdown-item .ck{flex:none;color:var(--accent)}
.dropdown-sep{height:1px;background:var(--border);margin:5px 2px}

/* ---------- modal ---------- */
.modal{border:1px solid var(--border-strong);background:var(--surface);color:var(--text);
  border-radius:10px;padding:22px;max-width:440px;width:calc(100% - 32px);box-shadow:var(--shadow)}
.modal::backdrop{background:rgba(0,0,0,.5)}
.modal h3{margin:0 0 8px;font-size:17px}
.modal p{margin:0 0 18px;font-size:13.5px;line-height:1.5;color:var(--muted)}
.modal-actions{display:flex;justify-content:flex-end;gap:10px}

/* ---------- dashboard ---------- */
.kpi-grid{display:grid;gap:16px;grid-template-columns:repeat(6,1fr)}
@media(max-width:1080px){.kpi-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:560px){.kpi-grid{grid-template-columns:repeat(2,1fr)}}
.kpi-delta{margin:0;font-size:12.5px;color:var(--ok)}
.chart-card h3{margin-bottom:12px}
.chart-box{position:relative;height:220px}
.chart-box-lg{height:300px}