/* ============ InvoiceGraph — Billing Portal ============ */
:root{
  --ink:#0c0c0c; --ink-2:#141312; --ink-3:#1b1916;
  --cream:#F6ECDD; --cream-dim:#cdc3b4; --cream-mute:#8c857a;
  --red:#F43F3F; --green:#3FB984; --amber:#FFB46B;
  --line:rgba(246,236,221,.10); --line-2:rgba(246,236,221,.16);
  --sidebar:248px;
  --paper:#ffffff; --paper-ink:#1a1a1a; --paper-mute:#6b6259; --paper-line:#e7ddcd;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:'Inter',system-ui,sans-serif;background:var(--ink);color:var(--cream);line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
em{font-family:'Playfair Display',serif;font-style:italic;color:var(--red)}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:.95rem;color:var(--cream);background:var(--ink-3);border:1px solid var(--line-2);padding:.62rem .8rem;width:100%;border-radius:8px}
input:focus,select:focus,textarea:focus{outline:2px solid var(--red);outline-offset:-1px}
label{display:block;font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;color:var(--cream-mute);margin:0 0 .35rem;font-weight:600}
.mono{font-family:'IBM Plex Mono',monospace}

/* ---- buttons ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-weight:700;font-size:.9rem;
  padding:.62rem 1.1rem;border:1px solid transparent;border-radius:9px;transition:transform .2s,background .2s,border-color .2s}
.btn:hover{transform:translateY(-1px)}
.btn--solid{background:var(--red);color:#fff}.btn--solid:hover{background:#ff5454}
.btn--green{background:var(--green);color:#062b1c}.btn--green:hover{background:#49cf95}
.btn--ghost{background:transparent;color:var(--cream);border-color:var(--line-2)}.btn--ghost:hover{border-color:var(--cream)}
.btn--sm{padding:.42rem .8rem;font-size:.82rem}
.btn--lg{padding:.85rem 1.5rem;font-size:1rem}
.btn[disabled]{opacity:.55;cursor:default;transform:none}

/* ---- auth ---- */
.auth{min-height:100vh;display:grid;place-items:center;padding:2rem;
  background:radial-gradient(circle at 50% -10%,rgba(244,63,63,.14),transparent 55%)}
.auth__card{width:100%;max-width:420px;background:var(--ink-2);border:1px solid var(--line);border-radius:18px;padding:2.2rem}
.auth__brand{display:flex;align-items:center;gap:.6rem;margin-bottom:1.6rem}
.auth__brand img{width:32px}
.auth__brand b{font-weight:900;letter-spacing:.14em;font-size:1.05rem}
.auth__card h1{font-size:1.5rem;font-weight:800;letter-spacing:-.02em;margin-bottom:.4rem}
.auth__card p.sub{color:var(--cream-dim);font-size:.92rem;margin-bottom:1.5rem}
.auth__field{margin-bottom:.9rem}
.auth__foot{margin-top:1.3rem;font-size:.88rem;color:var(--cream-mute);text-align:center}
.auth__foot a{color:var(--red);font-weight:600}
.auth__err{color:var(--red);font-size:.85rem;min-height:1.1em;margin-top:.3rem}

/* ---- shell ---- */
.shell{display:grid;grid-template-columns:var(--sidebar) 1fr;min-height:100vh}
.side{background:var(--ink-2);border-right:1px solid var(--line);display:flex;flex-direction:column;padding:1.3rem 1rem;position:sticky;top:0;height:100vh}
.side__brand{display:flex;align-items:center;gap:.55rem;padding:.2rem .4rem 1.3rem}
.side__brand img{width:28px}
.side__brand b{font-weight:900;letter-spacing:.12em;font-size:.98rem}
.side__nav{display:flex;flex-direction:column;gap:.2rem;flex:1}
.side__link{display:flex;align-items:center;gap:.7rem;padding:.62rem .7rem;border-radius:9px;color:var(--cream-dim);font-weight:600;font-size:.93rem}
.side__link:hover{background:var(--ink-3);color:var(--cream)}
.side__link.active{background:rgba(244,63,63,.12);color:var(--cream)}
.side__link .ic{width:18px;text-align:center;opacity:.85}
.side__cta{margin:0 .2rem .8rem}
.side__user{border-top:1px solid var(--line);padding-top:1rem;display:flex;align-items:center;gap:.6rem;font-size:.85rem}
.side__avatar{width:34px;height:34px;border-radius:50%;background:var(--red);color:#fff;display:grid;place-items:center;font-weight:800}
.side__user small{color:var(--cream-mute);display:block}
.side__signout{margin-left:auto;color:var(--cream-mute);font-size:.78rem}
.side__signout:hover{color:var(--red)}

.main{padding:2rem clamp(1.2rem,3vw,2.6rem);max-width:1180px;width:100%}
.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.8rem;gap:1rem;flex-wrap:wrap}
.topbar h1{font-size:1.7rem;font-weight:800;letter-spacing:-.02em}
.topbar .sub{color:var(--cream-mute);font-size:.9rem;margin-top:.15rem}
.topbar__actions{display:flex;gap:.6rem}

/* ---- kpi ---- */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-bottom:1.6rem}
.kpi{background:var(--ink-2);border:1px solid var(--line);border-radius:14px;padding:1.1rem 1.2rem}
.kpi__lbl{font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--cream-mute);font-weight:600}
.kpi__val{font-family:'IBM Plex Mono',monospace;font-size:1.8rem;font-weight:500;margin-top:.4rem}
.kpi__val.green{color:var(--green)}.kpi__val.red{color:var(--red)}.kpi__val.amber{color:var(--amber)}
.kpi__sub{font-size:.78rem;color:var(--cream-mute);margin-top:.2rem}

/* ---- insight strip (the graph) ---- */
.insight{display:flex;align-items:center;gap:.8rem;background:linear-gradient(100deg,rgba(63,185,132,.10),rgba(244,63,63,.07));
  border:1px solid var(--line);border-radius:12px;padding:.85rem 1.1rem;margin-bottom:1.6rem;font-size:.92rem}
.insight .dot{width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green);flex:none}
.insight b{color:var(--cream)}

/* ---- card + table ---- */
.card{background:var(--ink-2);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.card__head{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.2rem;border-bottom:1px solid var(--line)}
.card__head h2{font-size:1.05rem;font-weight:700}
.tbl{width:100%;border-collapse:collapse;font-size:.92rem}
.tbl th{text-align:left;font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--cream-mute);font-weight:600;padding:.7rem 1.2rem;border-bottom:1px solid var(--line)}
.tbl td{padding:.85rem 1.2rem;border-bottom:1px solid var(--line)}
.tbl tr:last-child td{border-bottom:0}
.tbl tr.row:hover{background:var(--ink-3);cursor:pointer}
.tbl .num{font-family:'IBM Plex Mono',monospace;text-align:right}
.tbl__empty{padding:2.5rem 1.2rem;text-align:center;color:var(--cream-mute)}

/* ---- status chips ---- */
.chip{display:inline-flex;align-items:center;gap:.35rem;font-size:.72rem;font-weight:700;letter-spacing:.03em;
  padding:.22rem .6rem;border-radius:99px;text-transform:uppercase}
.chip::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.chip--draft{background:rgba(140,133,122,.18);color:#b3aa9c}
.chip--sent{background:rgba(107,168,255,.16);color:#8fbcff}
.chip--paid{background:rgba(63,185,132,.16);color:var(--green)}
.chip--overdue{background:rgba(244,63,63,.16);color:#ff7a7a}

/* ---- builder layout ---- */
.builder{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem;align-items:start}
.panel{background:var(--ink-2);border:1px solid var(--line);border-radius:14px;padding:1.3rem}
.panel h2{font-size:1rem;font-weight:700;margin-bottom:1rem}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:.8rem;margin-bottom:.8rem}
.field{margin-bottom:.8rem}
.items{margin-top:.4rem}
.item{display:grid;grid-template-columns:1fr 64px 90px 90px 30px;gap:.5rem;align-items:center;margin-bottom:.5rem}
.item input{padding:.5rem .6rem}
.item__amt{font-family:'IBM Plex Mono',monospace;text-align:right;font-size:.9rem;color:var(--cream-dim)}
.item__del{background:none;border:0;color:var(--cream-mute);font-size:1.1rem}
.item__del:hover{color:var(--red)}
.item--head{font-size:.7rem;letter-spacing:.05em;text-transform:uppercase;color:var(--cream-mute);font-weight:600;margin-bottom:.3rem}
.addline{margin-top:.4rem;background:none;border:1px dashed var(--line-2);color:var(--cream-dim);padding:.5rem;border-radius:8px;width:100%}
.addline:hover{border-color:var(--red);color:var(--cream)}
.totrow{display:flex;justify-content:space-between;padding:.35rem 0;font-size:.92rem;color:var(--cream-dim)}
.totrow.grand{border-top:1px solid var(--line);margin-top:.4rem;padding-top:.7rem;font-size:1.15rem;font-weight:800;color:var(--cream)}
.totrow .mono{color:var(--cream)}
.builder__actions{display:flex;gap:.6rem;margin-top:1.1rem;flex-wrap:wrap}

/* ---- invoice preview (paper) ---- */
.previewwrap{position:sticky;top:1.5rem}
.preview{background:var(--paper);color:var(--paper-ink);border-radius:12px;padding:2rem;box-shadow:0 18px 50px rgba(0,0,0,.5)}
.pv__top{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:1.6rem}
.pv__brand{display:flex;align-items:center;gap:.5rem}
.pv__brandbar{width:34px;height:34px;border-radius:8px;display:grid;place-items:center;color:#fff;font-weight:900}
.pv__brand b{font-weight:900;letter-spacing:.08em;font-size:.95rem}
.pv__brand small{display:block;color:var(--paper-mute);font-size:.66rem;letter-spacing:.12em;text-transform:uppercase}
.pv__title{text-align:right}
.pv__title h3{font-size:1.5rem;font-weight:800;letter-spacing:.04em}
.pv__title .mono{color:var(--paper-mute);font-size:.82rem}
.pv__parties{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1.4rem;font-size:.86rem}
.pv__parties .lbl{font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--paper-mute);margin-bottom:.3rem;font-weight:700}
.pv__parties b{display:block}
.pv__parties .muted{color:var(--paper-mute);display:block}
.pv__dates{text-align:right}
.pv__tbl{width:100%;border-collapse:collapse;font-size:.84rem;margin-bottom:1rem}
.pv__tbl th{text-align:left;border-bottom:2px solid var(--paper-ink);padding:.45rem .3rem;font-size:.66rem;letter-spacing:.06em;text-transform:uppercase;color:var(--paper-mute)}
.pv__tbl th.r,.pv__tbl td.r{text-align:right}
.pv__tbl td{padding:.5rem .3rem;border-bottom:1px solid var(--paper-line)}
.pv__tbl .mono{font-family:'IBM Plex Mono',monospace}
.pv__tot{margin-left:auto;width:62%}
.pv__tot .totrow{color:var(--paper-mute);border-color:var(--paper-line)}
.pv__tot .totrow.grand{color:var(--paper-ink)}
.pv__tot .totrow .mono{color:var(--paper-ink)}
.pv__notes{margin-top:1.3rem;font-size:.8rem;color:var(--paper-mute);border-top:1px solid var(--paper-line);padding-top:.8rem}
.pv__foot{margin-top:1.2rem;text-align:center;font-size:.66rem;color:var(--paper-mute);letter-spacing:.04em}

/* ---- misc ---- */
.empty{text-align:center;padding:3rem 1rem;color:var(--cream-mute)}
.empty h2{color:var(--cream);font-weight:700;margin-bottom:.5rem}
.toast{position:fixed;bottom:1.4rem;right:1.4rem;background:var(--ink-3);border:1px solid var(--line-2);border-left:3px solid var(--green);
  padding:.9rem 1.2rem;border-radius:10px;font-size:.9rem;box-shadow:0 10px 30px rgba(0,0,0,.5);z-index:80;max-width:340px}
.toast.err{border-left-color:var(--red)}
.filters{display:flex;gap:.5rem;margin-bottom:1rem;flex-wrap:wrap}
.filter{background:var(--ink-2);border:1px solid var(--line);color:var(--cream-dim);padding:.4rem .9rem;border-radius:99px;font-size:.82rem;font-weight:600}
.filter.active{background:var(--cream);color:var(--ink);border-color:var(--cream)}
.row-actions{display:flex;gap:.4rem;justify-content:flex-end}
.linklike{color:var(--red);font-weight:600;background:none;border:0}

@media(max-width:920px){
  .shell{grid-template-columns:1fr}
  .side{position:static;height:auto;flex-direction:row;align-items:center;overflow-x:auto;gap:.4rem}
  .side__brand{padding:0 .6rem 0 0;border:0}
  .side__nav{flex-direction:row;flex:1}
  .side__link{white-space:nowrap}
  .side__cta,.side__user{display:none}
  .builder{grid-template-columns:1fr}
  .kpis{grid-template-columns:1fr 1fr}
  .previewwrap{position:static}
}
@media print{
  .side,.topbar,.builder>.panel:first-child,.builder__actions{display:none!important}
  .shell{display:block}.main{padding:0;max-width:none}
  .builder{display:block}.previewwrap{position:static}
  .preview{box-shadow:none;border-radius:0;padding:0}
  body{background:#fff}
}