/* ==========================================================================
   Invoice Studio — Lumina design system (shared tokens + app chrome)
   A calm "Neo-SaaS" look: a light-lavender surface, indigo primary, a
   reserved violet accent for AI/insight moments, Geist for headings, labels
   and financial figures, Inter for body copy. Navigation lives in a fixed
   left rail (.sidenav) rather than a top bar. Financial figures render in
   Geist with tabular-nums so columns of money line up.
   ========================================================================== */

:root{
  /* surfaces */
  --bg:#faf8ff;              /* app surface (Lumina background) */
  --panel:#ffffff;           /* cards / modules */
  --panel-2:#f2f3ff;         /* surface-container-low */
  --panel-3:#eaedff;         /* surface-container */

  /* ink */
  --ink:#131b2e;             /* on-surface */
  --ink-soft:#3b4256;        /* softer heading/body ink */
  --muted:#6a6d7e;           /* on-surface-variant, muted text */
  --line:#e7e6f1;            /* hairline borders */
  --line-soft:#f1f0fa;       /* faintest dividers */

  /* indigo primary — actions, active state, focus */
  --accent:#4648d4;
  --accent-dark:#393bbe;
  --accent-bright:#6063ee;   /* primary-container, active nav */
  --accent-soft:#eaedff;     /* tinted chip / active nav bg */
  --accent-ring:rgba(70,72,212,.20);
  --on-accent:#ffffff;

  /* violet — reserved for AI / insight highlights */
  --violet:#8127cf;
  --violet-soft:#f3e6ff;

  /* semantic status */
  --paid:#1f8a5f;   --paid-bg:#e3f6ec;
  --unpaid:#b5561f; --unpaid-bg:#fbeadf;
  --draft:#6a6d7e;  --draft-bg:#eeedf6;
  --danger:#ba1a1a; --danger-bg:#ffe3e0;

  --radius:16px;     /* dashboard modules */
  --radius-md:12px;  /* buttons, inputs, small cards */
  --radius-sm:8px;   /* chips, tags */

  /* ambient elevation — large blur, very low opacity */
  --shadow-card:0 1px 2px rgba(19,27,46,.04), 0 12px 34px rgba(19,27,46,.05);
  --shadow-hover:0 6px 14px rgba(19,27,46,.06), 0 22px 50px rgba(19,27,46,.10);
  --shadow-pop:0 24px 60px rgba(19,27,46,.18);
  --shadow-accent:0 8px 22px rgba(70,72,212,.30);

  --sidenav-w:248px;

  --ease:cubic-bezier(.16,1,.3,1);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

h1,h2,h3,.geist{font-family:'Geist',Inter,ui-sans-serif,system-ui,sans-serif}

/* financial figures — Geist, tabular so columns align */
.num,.mono-num{
  font-family:'Geist',Inter,ui-sans-serif,system-ui,sans-serif;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}

/* ------------------------------ left sidebar ------------------------------ */
.sidenav{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidenav-w);z-index:50;
  background:var(--panel);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:22px 16px;gap:6px;
}
.sidenav .brand{
  display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink);
  padding:4px 6px 2px;margin-bottom:14px;
}
.sidenav .brandmark{
  width:38px;height:38px;border-radius:11px;background:var(--accent);
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:17px;flex:none;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.25), 0 2px 6px rgba(70,72,212,.35);
  transition:.2s var(--ease) transform;
}
.sidenav .brand:hover .brandmark{transform:scale(1.05)}
/* brandmark holding the Zenvoice SVG logo — no coloured tile, just the mark */
.brandmark.logo-mark{background:none!important;box-shadow:none!important;width:auto!important;height:auto!important;border-radius:0!important}
.logo-mark svg{display:block}
.sidenav .brandtext{display:flex;flex-direction:column;min-width:0;line-height:1.2}
.sidenav .brandtext b{font-family:'Geist',Inter,sans-serif;font-weight:700;font-size:16px;letter-spacing:-.02em}
.sidenav .brandtext small{font-size:11.5px;color:var(--muted);font-weight:500}

.sidenav .newbtn{width:100%;justify-content:center;margin:2px 0 16px;padding:11px;font-size:14px}

.sidenav .navlinks{display:flex;flex-direction:column;gap:3px;flex:1;min-height:0;overflow-y:auto}
.sidenav .navlinks a{
  display:flex;align-items:center;gap:12px;text-decoration:none;
  font-family:'Geist',Inter,sans-serif;font-weight:600;font-size:14px;color:var(--ink-soft);
  padding:10px 12px;border-radius:11px;white-space:nowrap;
  transition:.15s var(--ease) background,.15s var(--ease) color;
}
.sidenav .navlinks a svg{width:20px;height:20px;flex:none;opacity:.85}
.sidenav .navlinks a:hover{background:var(--panel-2);color:var(--ink)}
.sidenav .navlinks a.active{background:var(--accent-bright);color:#fff;box-shadow:var(--shadow-accent)}
.sidenav .navlinks a.active svg{opacity:1}

.sidenav .navfoot{border-top:1px solid var(--line);padding-top:12px;margin-top:8px;display:flex;flex-direction:column;gap:10px}
.sidenav .userchip{
  display:flex;align-items:center;gap:10px;padding:6px;min-width:0;border-radius:11px;text-decoration:none;
  transition:.15s var(--ease) background;
}
a.userchip:hover{background:var(--panel-2)}

/* guest sidebar */
.guest-cta{flex:1;display:flex;flex-direction:column;gap:8px;padding-top:6px}
.guest-note{margin:2px 4px 12px;font-size:13px;line-height:1.5;color:var(--muted)}
.guest-note b{color:var(--ink)}
.guest-btn{width:100%;justify-content:center}
.google-btn{gap:9px}
.guest-badge{font-size:11.5px;color:var(--muted);background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:9px 11px;line-height:1.45;text-align:center}
.sidenav .userchip .ava{
  width:34px;height:34px;border-radius:50%;flex:none;background:var(--accent-soft);color:var(--accent);
  display:grid;place-items:center;font-family:'Geist',Inter,sans-serif;font-weight:700;font-size:13px;
}
.sidenav .userchip .who{min-width:0}
.sidenav .userchip .who b{display:block;font-size:13px;font-weight:650;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sidenav .userchip .who small{display:block;font-size:11.5px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sidenav .navfoot .btn{justify-content:center}

/* content offset when the rail is present */
body.has-nav{padding-left:var(--sidenav-w)}

/* mobile rail toggle + scrim (hidden on desktop) */
.nav-toggle{
  display:none;position:fixed;top:14px;left:14px;z-index:60;
  width:42px;height:42px;border:1px solid var(--line);background:var(--panel);
  border-radius:11px;box-shadow:var(--shadow-card);align-items:center;justify-content:center;
}
.nav-scrim{
  display:none;position:fixed;inset:0;z-index:45;background:rgba(19,27,46,.34);
  opacity:0;transition:.2s var(--ease) opacity;
}

/* --------------------------------- buttons -------------------------------- */
.btn{
  border:1px solid var(--line);background:var(--panel);border-radius:var(--radius-md);
  padding:9px 14px;font-family:'Geist',Inter,sans-serif;font-weight:600;font-size:13.5px;color:var(--ink);
  text-decoration:none;
  display:inline-flex;align-items:center;gap:7px;
  transition:.15s var(--ease) background,.15s var(--ease) border-color,.15s var(--ease) box-shadow,.15s var(--ease) transform;
}
.btn:hover{background:var(--panel-2)}
.btn:active{transform:scale(.97)}
.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn.primary:hover{background:var(--accent-dark);border-color:var(--accent-dark);box-shadow:var(--shadow-accent);transform:translateY(-1px)}
.btn.primary:active{transform:translateY(0) scale(.97)}
.btn.ghost{background:transparent}
.btn.danger{color:var(--danger)}
.btn.danger:hover{background:var(--danger-bg);border-color:#f3c6c1}
.btn[disabled]{opacity:.6;pointer-events:none}
.btn.sm{padding:7px 11px;font-size:12.5px;border-radius:10px}
.btn.icon{padding:8px;width:36px;height:36px;justify-content:center}

/* --------------------------------- layout --------------------------------- */
.page{max-width:1240px;margin:0 auto;padding:40px 40px 72px}
.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:30px;flex-wrap:wrap}
.page-head h1{margin:0 0 6px;font-size:34px;font-weight:700;letter-spacing:-.03em;color:var(--ink)}
.page-head p{margin:0;color:var(--muted);font-size:15px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-card)}

/* -------------------------------- stat cards ------------------------------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:34px}
.stat-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;position:relative;box-shadow:var(--shadow-card);
  transition:.2s var(--ease) transform,.2s var(--ease) box-shadow;
}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.stat-card .lbl{font-family:'Geist',Inter,sans-serif;font-size:13px;letter-spacing:-.01em;color:var(--muted);font-weight:600;margin-bottom:14px;display:block;padding-right:40px}
.stat-card .val{font-size:30px;font-weight:700;color:var(--ink);letter-spacing:-.02em;line-height:1.1}
.stat-card .ico{
  position:absolute;top:18px;right:18px;width:32px;height:32px;border-radius:9px;
  display:grid;place-items:center;font-size:17px;background:var(--accent-soft);color:var(--accent);
}
.stat-card.paid .ico{background:var(--paid-bg);color:var(--paid)}
.stat-card.unpaid .ico{background:var(--unpaid-bg);color:var(--unpaid)}
.stat-card.draft .ico{background:var(--draft-bg);color:var(--draft)}
.stat-card.total .ico{background:var(--accent-soft);color:var(--accent)}
.stat-card.paid .val{color:var(--paid)}
.stat-card.unpaid .val{color:var(--unpaid)}
@media(max-width:900px){.stat-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.stat-grid{grid-template-columns:1fr}}

/* -------------------------------- status pills ------------------------------ */
.pill{
  font-family:'Geist',Inter,sans-serif;font-size:11px;font-weight:700;letter-spacing:.02em;
  padding:4px 11px;border-radius:8px;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;text-transform:capitalize;
}
.pill.paid{background:var(--paid-bg);color:var(--paid)}
.pill.unpaid{background:var(--unpaid-bg);color:var(--unpaid)}
.pill.draft{background:transparent;color:var(--draft);border:1px dashed #c2c0d2}
.pill.unpaid::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.pill.accepted,.pill.received,.pill.delivered{background:var(--paid-bg);color:var(--paid)}
.pill.sent,.pill.issued{background:rgba(63,53,181,.10);color:#3f35b5}
.pill.declined,.pill.expired{background:rgba(198,58,58,.10);color:#c63a3a}

/* ---------------------------------- table ----------------------------------- */
.dtable{width:100%;border-collapse:collapse}
.dtable th{
  text-align:left;font-family:'Geist',Inter,sans-serif;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);
  font-weight:600;padding:0 16px 14px;border-bottom:1px solid var(--line);
}
.dtable td{padding:16px;border-bottom:1px solid var(--line-soft);font-size:14px;vertical-align:middle}
.dtable tbody tr{transition:.12s var(--ease) background}
.dtable tbody tr:last-child td{border-bottom:0}
.dtable tbody tr:hover{background:var(--panel-2)}
.dtable tbody tr.clickrow{cursor:pointer}
.dtable td.r,.dtable th.r{text-align:right}
.dtable .invno,.dtable .tag{white-space:nowrap}
.dtable .rowbtns{display:flex;gap:2px;justify-content:flex-end}
.dtable .rowbtns .rb{
  border:1px solid transparent;background:transparent;width:32px;height:32px;border-radius:8px;
  color:var(--muted);display:grid;place-items:center;
  transition:.14s var(--ease) background,.14s var(--ease) color,.14s var(--ease) border-color;
}
.dtable .rowbtns .rb svg{width:16px;height:16px}
.dtable .rowbtns .rb:hover{background:var(--panel);border-color:var(--line);color:var(--ink);box-shadow:var(--shadow-card)}
.dtable .rowbtns .rb.danger:hover{background:var(--danger-bg);border-color:#f3c6c1;color:var(--danger)}
.dtable .rowbtns .rb:active{transform:scale(.9)}
/* client cell: avatar + stacked identity */
.dtable .idcell{display:flex;align-items:center;gap:12px;min-width:0}
.dtable .ava{
  width:36px;height:36px;border-radius:50%;flex:none;display:grid;place-items:center;
  font-family:'Geist',Inter,sans-serif;font-weight:700;font-size:13px;
  background:var(--accent-soft);color:var(--accent);
}

/* --------------------------------- empty state ------------------------------- */
.empty-state{text-align:center;padding:64px 20px;color:var(--muted)}
.empty-state .mark{
  width:52px;height:52px;border-radius:15px;background:var(--accent-soft);color:var(--accent);
  display:grid;place-items:center;margin:0 auto 16px;font-size:22px;
}
.empty-state h3{margin:0 0 6px;color:var(--ink);font-size:17px;font-family:'Geist',Inter,sans-serif}
.empty-state p{margin:0 0 18px;font-size:14px}

/* ---------------------------------- forms ------------------------------------ */
.field{margin-bottom:14px}
.field label{display:block;font-family:'Geist',Inter,sans-serif;font-size:12px;font-weight:600;letter-spacing:.01em;color:var(--ink-soft);margin:0 0 6px}
.input,.select,.textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--radius-md);padding:10px 12px;background:var(--panel);
  outline:none;font-size:14px;
  transition:.15s var(--ease) border-color,.15s var(--ease) box-shadow;
}
.input:focus,.select:focus,.textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-ring)}
.search-row{display:flex;gap:10px;margin-bottom:18px;flex-wrap:wrap}
.search-row .input{max-width:340px}

/* ---------------------------------- toast ------------------------------------- */
.toast{
  position:fixed;left:50%;bottom:26px;transform:translate(-50%,10px);background:var(--ink);color:#fff;
  padding:12px 20px;border-radius:12px;font-weight:600;font-size:13px;opacity:0;pointer-events:none;
  box-shadow:var(--shadow-pop);transition:.28s var(--ease);z-index:80;
}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.bad{background:var(--danger)}

/* --------------------------------- misc -------------------------------------- */
.tabs{display:flex;gap:8px;margin-bottom:24px;flex-wrap:wrap}
.tabs button{
  border:1px solid var(--line);background:var(--panel);padding:8px 16px;border-radius:10px;
  font-family:'Geist',Inter,sans-serif;font-weight:600;font-size:13.5px;color:var(--muted);
  transition:.15s var(--ease) background,.15s var(--ease) color,.15s var(--ease) border-color;
}
.tabs button:hover{color:var(--ink);background:var(--panel-2)}
.tabs button.active{color:var(--ink);background:var(--panel);border-color:var(--accent);box-shadow:var(--shadow-card)}
.tag{font-size:12px;color:var(--muted)}
.hide{display:none!important}

@media print{
  .sidenav,.toast,.nav-toggle,.nav-scrim{display:none!important}
  body.has-nav{padding-left:0}
}

/* --------------------------------- responsive -------------------------------- */
@media(max-width:900px){
  .page{padding:28px 20px 60px}
  .page-head h1{font-size:28px}
}
@media(max-width:860px){
  body.has-nav{padding-left:0}
  .nav-toggle{display:flex}
  .sidenav{transform:translateX(-100%);transition:.24s var(--ease) transform;box-shadow:var(--shadow-pop)}
  .sidenav.open{transform:none}
  .nav-scrim.show{display:block;opacity:1}
  .page{padding-top:64px}
}

/* editor inline document-type selector */
.doctype-links{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;margin:0 0 8px;line-height:1.7}
.doctype-links .dt-plus{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;background:var(--accent);color:#fff;font-weight:700;font-size:15px;flex:none}
.doctype-links .dt-link{font-family:'Geist',Inter,sans-serif;font-size:14px;font-weight:600;color:var(--accent);text-decoration:none}
.doctype-links .dt-link.active{color:var(--muted);cursor:default}

.doctype-links .dt-sep{color:var(--line);font-size:12px}