:root{
  --navy:#1a2332; --navy-2:#222d40; --navy-3:#2c3a52;
  --teal:#2d8b8b; --teal-d:#226e6e; --seafoam:#a8dadc; --cream:#f1faee;
  --paper:#fbfdf8; --ink:#1a2332; --muted:#5b6b7f; --line:rgba(26,35,50,.12);
  --warn:#c8553d; --warn-bg:#f8e3dc; --amber:#b7791f;
  --radius:10px;
  --font:"DejaVu Sans","DejaVu Sans Web",Verdana,"Segoe UI",system-ui,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:var(--font);background:var(--cream);color:var(--ink);font-size:14px;line-height:1.45;-webkit-font-smoothing:antialiased}
button,input,select,textarea{font:inherit;color:inherit}
.num{font-variant-numeric:tabular-nums;text-align:right;white-space:nowrap}
.app{display:grid;grid-template-columns:232px 1fr;min-height:100vh}

/* Sidebar */
.side{background:var(--navy);color:var(--cream);padding:22px 14px;display:flex;flex-direction:column;gap:6px;position:sticky;top:0;height:100vh}
.brand{display:flex;align-items:center;gap:10px;padding:4px 10px 20px}
.brand-mark{width:34px;height:34px;border-radius:9px;background:var(--teal);display:grid;place-items:center;font-weight:700;color:var(--cream);font-size:15px;flex:none}
.brand-name{font-weight:700;font-size:15px;line-height:1.2;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.brand-sub{font-size:11px;color:var(--seafoam);opacity:.8}
.nav a{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:8px;color:rgba(241,250,238,.78);text-decoration:none;font-size:14px}
.nav a:hover{background:var(--navy-2);color:var(--cream)}
.nav a.on{background:var(--navy-3);color:var(--cream);box-shadow:inset 3px 0 0 var(--teal)}
.nav svg{width:18px;height:18px;flex:none;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.nav .badge{margin-left:auto;background:var(--warn);color:#fff;border-radius:999px;font-size:11px;padding:1px 7px;font-weight:700}
.side-foot{margin-top:auto;font-size:11px;color:rgba(241,250,238,.5);padding:0 12px}
.side-foot .dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--seafoam);margin-right:6px}
.side-foot .dot.off{background:var(--amber)}

/* Main */
.main{padding:28px 34px 60px;min-width:0}
.top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap}
.top h1{font-size:24px;margin:0;font-weight:700;letter-spacing:-.01em}
.top .sub{color:var(--muted);font-size:13px;margin-top:2px}
.crumb{font-size:13px;color:var(--teal);text-decoration:none;display:inline-flex;gap:6px;align-items:center;margin-bottom:6px;cursor:pointer;background:none;border:0;padding:0}
.crumb:hover{text-decoration:underline}
.actions{display:flex;gap:8px;flex-wrap:wrap}

.btn{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);background:#fff;padding:8px 14px;border-radius:8px;cursor:pointer;font-size:13.5px;font-weight:600;white-space:nowrap;color:var(--ink)}
.btn:hover{border-color:var(--teal);color:var(--teal-d)}
.btn.primary{background:var(--teal);border-color:var(--teal);color:var(--cream)}
.btn.primary:hover{background:var(--teal-d);color:#fff}
.btn.dark{background:var(--navy);border-color:var(--navy);color:var(--cream)}
.btn.dark:hover{background:var(--navy-3)}
.btn.danger{color:var(--warn)}
.btn.danger:hover{border-color:var(--warn);color:var(--warn)}
.btn.ghost{background:transparent;border-color:transparent}
.btn.sm{padding:5px 10px;font-size:12.5px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px}
.card h2{font-size:15px;margin:0 0 12px;font-weight:700}
.grid{display:grid;gap:16px}
.kpis{grid-template-columns:repeat(4,minmax(0,1fr));margin-bottom:18px}
.kpi{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;position:relative;overflow:hidden}
.kpi::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--seafoam)}
.kpi.t::before{background:var(--teal)} .kpi.w::before{background:var(--warn)} .kpi.n::before{background:var(--navy)}
.kpi .l{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-weight:600}
.kpi .v{font-size:24px;font-weight:700;margin-top:6px;font-variant-numeric:tabular-nums}
.kpi .s{font-size:12px;color:var(--muted);margin-top:2px}
.two{grid-template-columns:1.4fr 1fr}

table{width:100%;border-collapse:collapse}
th{text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:600;padding:9px 10px;border-bottom:1px solid var(--line);white-space:nowrap}
td{padding:11px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
tbody tr.click{cursor:pointer}
tbody tr.click:hover td{background:#f5faf6}
tbody tr:last-child td{border-bottom:0}
.tbl{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow-x:auto}
.tbl table{min-width:560px}
.strong{font-weight:600}
.muted{color:var(--muted)}
.small{font-size:12.5px}

.chip{display:inline-block;padding:2px 9px;border-radius:999px;font-size:11.5px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.chip.draft{background:#e7ebf0;color:#4a5869}
.chip.sent{background:#dcf0f0;color:var(--teal-d)}
.chip.paid{background:var(--teal);color:var(--cream)}
.chip.overdue{background:var(--warn-bg);color:var(--warn)}

.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:14px;flex-wrap:wrap}
.search{flex:1;min-width:200px;position:relative}
.search input{width:100%;padding:9px 12px 9px 34px;border:1px solid var(--line);border-radius:8px;background:#fff}
.search svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);width:15px;height:15px;stroke:var(--muted);fill:none;stroke-width:2}
.filters{display:flex;gap:6px;flex-wrap:wrap}
.filters button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 12px;font-size:12.5px;cursor:pointer;font-weight:600;color:var(--muted)}
.filters button.on{background:var(--navy);color:var(--cream);border-color:var(--navy)}

.empty{text-align:center;padding:42px 20px;color:var(--muted)}
.empty .big{font-size:16px;color:var(--ink);font-weight:700;margin-bottom:6px}
.empty .btn{margin-top:14px}

/* Forms */
.form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 16px}
.form .full{grid-column:1/-1}
label.f{display:flex;flex-direction:column;gap:5px;font-size:12.5px;font-weight:600;color:var(--muted)}
.f input,.f select,.f textarea,.items input{border:1px solid var(--line);border-radius:7px;padding:9px 10px;background:#fff;font-weight:400;color:var(--ink);width:100%}
.f textarea{min-height:76px;resize:vertical}
.f input:focus,.f select:focus,.f textarea:focus,.items input:focus,.search input:focus{outline:2px solid var(--seafoam);border-color:var(--teal)}
.f .hint{font-weight:400;font-size:11.5px}
.section-t{font-size:12px;text-transform:uppercase;letter-spacing:.07em;color:var(--teal);font-weight:700;margin:6px 0 -2px}
.check{display:flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:var(--ink);cursor:pointer}
.check input{width:16px;height:16px;accent-color:var(--teal)}

.items{width:100%}
.items th{padding:6px 6px}
.items td{padding:6px 6px;border-bottom:0}
.items td.d{width:55%}
.items .x{border:0;background:none;color:var(--muted);cursor:pointer;font-size:18px;line-height:1;padding:4px 6px;border-radius:6px}
.items .x:hover{color:var(--warn);background:var(--warn-bg)}
.totals{margin-left:auto;width:min(320px,100%);margin-top:12px}
.totals div{display:flex;justify-content:space-between;padding:6px 0;font-variant-numeric:tabular-nums}
.totals .grand{border-top:2px solid var(--navy);margin-top:4px;padding-top:10px;font-size:18px;font-weight:700}
.editor{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:16px;align-items:start}
.sticky{position:sticky;top:20px}

/* Invoice document */
.doc{background:var(--paper);border:1px solid var(--line);border-radius:12px;overflow:hidden;max-width:860px;box-shadow:0 10px 30px -18px rgba(26,35,50,.35)}
.doc-head{background:var(--navy);color:var(--cream);padding:28px 34px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.doc-head .biz{font-size:20px;font-weight:700}
.doc-head .bizd{font-size:12.5px;color:rgba(241,250,238,.75);margin-top:6px;white-space:pre-line}
.doc-head .ttl{font-size:30px;font-weight:700;letter-spacing:.14em;color:var(--seafoam);text-align:right}
.doc-head .no{text-align:right;font-size:13px;margin-top:4px}
.doc-body{padding:28px 34px}
.doc-meta{display:grid;grid-template-columns:1fr auto;gap:24px;margin-bottom:24px}
.doc-meta .lbl{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--teal);font-weight:700;margin-bottom:5px}
.doc-meta .billto{white-space:pre-line}
.doc-meta dl{display:grid;grid-template-columns:auto auto;gap:5px 18px;margin:0;font-size:13px}
.doc-meta dt{color:var(--muted)} .doc-meta dd{margin:0;text-align:right;font-weight:600}
.doc table th{background:var(--teal);color:var(--cream);border:0}
.doc table th:first-child{border-radius:6px 0 0 6px} .doc table th:last-child{border-radius:0 6px 6px 0}
.doc .foot{display:grid;grid-template-columns:1fr 300px;gap:24px;margin-top:8px;align-items:start}
.doc .pay{background:#eef7f4;border-radius:8px;padding:14px 16px;font-size:12.5px;white-space:pre-line}
.doc .pay b{display:block;color:var(--teal-d);font-size:11px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px}
.doc .notes{margin-top:18px;font-size:12.5px;color:var(--muted);white-space:pre-line}
.doc .paidstamp{display:inline-block;border:2px solid var(--teal);color:var(--teal);padding:3px 12px;border-radius:6px;font-weight:700;letter-spacing:.12em;transform:rotate(-4deg);margin-top:8px}

.info dl{display:grid;grid-template-columns:110px 1fr;gap:8px 12px;margin:0;font-size:13.5px}
.info dt{color:var(--muted)} .info dd{margin:0;white-space:pre-line;word-break:break-word}

/* Modal + toast */
.scrim{position:fixed;inset:0;background:rgba(26,35,50,.55);display:none;align-items:flex-start;justify-content:center;padding:6vh 16px;z-index:50;overflow:auto}
.scrim.open{display:flex}
.modal{background:var(--cream);border-radius:14px;width:min(620px,100%);box-shadow:0 30px 70px -20px rgba(0,0,0,.45);overflow:hidden}
.modal .mh{background:var(--navy);color:var(--cream);padding:16px 22px;font-weight:700;font-size:16px;display:flex;justify-content:space-between;align-items:center}
.modal .mh button{background:none;border:0;color:var(--seafoam);font-size:22px;cursor:pointer;line-height:1}
.modal .mb{padding:20px 22px}
.modal .mf{padding:14px 22px;display:flex;justify-content:flex-end;gap:8px;border-top:1px solid var(--line);background:#fff}
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--navy);color:var(--cream);padding:11px 18px;border-radius:9px;font-size:13.5px;opacity:0;transition:.25s;z-index:60;pointer-events:none;box-shadow:0 10px 30px -10px rgba(0,0,0,.4);max-width:90vw}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.err{background:var(--warn)}
.banner{background:#fff4e0;border:1px solid #efd3a4;color:#7a4f0e;border-radius:9px;padding:10px 14px;font-size:13px;margin-bottom:16px;display:none}
.banner.show{display:block}

.loading{color:var(--muted);padding:40px;text-align:center}
/* lock screen */
body.locked .app{display:none}
#lock:empty{display:none}
.lk{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:28px 16px;background:radial-gradient(1200px 600px at 50% -10%,#24334a 0%,var(--navy) 60%)}
.lk-card{background:var(--cream);border-radius:16px;width:min(440px,100%);padding:26px 26px 22px;box-shadow:0 30px 80px -30px rgba(0,0,0,.6)}
.lk-head{display:flex;gap:14px;align-items:center;margin-bottom:10px}
.lk-ico{width:48px;height:48px;border-radius:12px;background:var(--navy);color:var(--seafoam);display:grid;place-items:center;flex:none}
.lk-biz{font-size:12px;color:var(--teal);font-weight:700;text-transform:uppercase;letter-spacing:.07em}
.lk-t{font-size:20px;font-weight:700}
.lk-sub{color:var(--muted);font-size:13.5px;margin:6px 0 14px}
.lk-form{display:grid;gap:12px;margin-top:6px}
.lk-go{width:100%;justify-content:center;padding:11px 14px;margin-top:4px}
.lk-link{display:block;margin:12px auto 0;background:none;border:0;color:var(--teal-d);font-size:12.5px;cursor:pointer;text-decoration:underline;text-underline-offset:2px}
.lk-err{background:var(--warn-bg);color:var(--warn);border-radius:8px;padding:8px 11px;font-size:13px;margin-bottom:6px}
.lk-msg{background:#e3f1f1;color:var(--teal-d);border-radius:8px;padding:8px 11px;font-size:13px;margin-bottom:10px}
.lk-code{font-size:22px !important;letter-spacing:.3em;text-align:center;font-variant-numeric:tabular-nums}
.lk-foot{color:rgba(241,250,238,.55);font-size:11.5px;margin-top:16px;text-align:center}
.lk-steps{display:flex;gap:6px;margin-bottom:14px;flex-wrap:wrap}
.lk-steps span{font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;background:#e2e8ec;color:#64748b}
.lk-steps span.on{background:var(--navy);color:var(--cream)}
.lk-list{margin:4px 0 18px;padding-left:18px;font-size:13.5px;display:grid;gap:8px}
.lk-meter{height:5px;background:#e2e8ec;border-radius:9px;overflow:hidden}.lk-meter i{display:block;height:100%;width:0;transition:.2s}
.lk-hint{font-size:12px;color:var(--muted);margin-top:-6px}
.lk-qr{background:#fff;border-radius:10px;padding:10px;width:200px;margin:4px auto 10px;border:1px solid var(--line)}
.lk-qr svg{display:block;width:100%;height:auto}
.lk-secret{text-align:center;margin-bottom:12px;display:grid;gap:3px}
.lk-secret code,.lk-rk code{font-family:"DejaVu Sans Mono",ui-monospace,Menlo,Consolas,monospace;font-size:13px;word-break:break-all}
.lk-rk{display:flex;gap:10px;align-items:center;background:#fff;border:1px dashed var(--teal);border-radius:10px;padding:12px 14px}
.lk-rk code{flex:1;font-size:15px;font-weight:700;letter-spacing:.04em;color:var(--navy)}
.nav a[data-a=lock]{cursor:pointer}

@media (max-width:980px){
  .kpis{grid-template-columns:repeat(2,minmax(0,1fr))}
  .two,.editor{grid-template-columns:1fr}
  .sticky{position:static}
}
@media (max-width:760px){
  .app{grid-template-columns:1fr}
  .side{position:fixed;bottom:0;top:auto;left:0;right:0;height:auto;flex-direction:row;padding:6px 8px calc(6px + env(safe-area-inset-bottom));z-index:40;justify-content:space-around;gap:0}
  .brand,.side-foot{display:none}
  .nav{display:contents}
  .nav a{flex-direction:column;gap:3px;font-size:10.5px;padding:7px 6px;flex:1;justify-content:center;position:relative}
  .nav a.on{box-shadow:inset 0 3px 0 var(--teal)}
  .nav .badge{position:absolute;top:2px;right:18%;margin:0;font-size:9.5px;padding:0 5px}
  .main{padding:18px 14px 90px}
  .top h1{font-size:20px}
  .form{grid-template-columns:1fr}
  .hide-sm{display:none}
  .doc-head,.doc-body{padding:20px}
  .doc-meta,.doc .foot{grid-template-columns:1fr}
  .doc-head .ttl,.doc-head .no{text-align:left}
  .kpi .v{font-size:19px}
  .items td.d{width:auto}
}