/* ===== Design tokens ===== */
:root{
  --bg:#F5F6F8;
  --surface:#FFFFFF;
  --sidebar:#122029;
  --sidebar-hover:#1B2E3A;
  --ink:#16212B;
  --ink-soft:#5B6773;
  --border:#E4E7EB;
  --accent:#0E6B57;      /* deep emerald */
  --accent-soft:#E4F2EE;
  --gold:#B8922F;        /* ledger-rule gold, used sparingly */
  --danger:#B3402A;
  --danger-soft:#FBEAE6;
  --radius:10px;
  --shadow:0 1px 2px rgba(16,24,32,.04), 0 8px 24px -12px rgba(16,24,32,.12);
}
*{box-sizing:border-box}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font-family:'Inter',system-ui,sans-serif; font-size:14px; line-height:1.5;
}
h1,h2,h3,.font-display{ font-family:'Fraunces',Georgia,serif; }
.mono, .amount{ font-family:'IBM Plex Mono',monospace; font-variant-numeric:tabular-nums; }

a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}

/* Layout shell */
.app-shell{ display:flex; min-height:100vh; }
.sidebar{
  width:250px; background:var(--sidebar); color:#CBD5DA; flex-shrink:0;
  display:flex; flex-direction:column; position:sticky; top:0; height:100vh; height:100dvh;
}
.sidebar .brand{
  padding:22px 20px 16px; border-bottom:1px solid rgba(255,255,255,.08);
  display:flex; justify-content:space-between; align-items:flex-start; gap:10px;
}
.nav-close, .nav-toggle{ display:none; background:none; border:0; cursor:pointer; padding:0; color:inherit; font-family:inherit; }
.nav-close{ color:#8FA3AC; font-size:26px; line-height:1; width:36px; height:36px; border-radius:8px; margin:-6px -8px 0 0; }
.nav-close:hover{ background:var(--sidebar-hover); color:#fff; }
.nav-overlay{ display:none; }
.sidebar .brand .name{ font-family:'Fraunces',serif; font-size:19px; color:#fff; font-weight:600; }
.sidebar .brand .tag{ font-size:11px; letter-spacing:.08em; text-transform:uppercase; color:var(--gold); margin-top:2px;}
.entity-switch{
  margin:14px 16px; padding:10px 12px; background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08); border-radius:var(--radius); font-size:12.5px;
}
.entity-switch .cur{ color:#fff; font-weight:600; display:block; margin-bottom:2px;}
.entity-switch a{ color:var(--gold); font-size:11.5px; }
.nav{ padding:8px 10px; flex:1; overflow-y:auto; }
.nav .grp-label{ font-size:10.5px; text-transform:uppercase; letter-spacing:.09em; color:#5E747F; margin:16px 10px 6px; }
.nav a{
  display:flex; align-items:center; gap:10px; padding:9px 12px; border-radius:8px;
  color:#C6D2D7; font-size:13.5px; text-decoration:none; margin-bottom:2px;
}
.nav a:hover{ background:var(--sidebar-hover); color:#fff; text-decoration:none; }
.nav a.active{ background:var(--accent); color:#fff; }
.sidebar .foot{ padding:14px 20px; border-top:1px solid rgba(255,255,255,.08); font-size:12px; color:#6C828C;}

.main{ flex:1; min-width:0; display:flex; flex-direction:column;}
.topbar{
  height:60px; background:var(--surface); border-bottom:1px solid var(--border);
  display:flex; align-items:center; justify-content:space-between; padding:0 24px; position:sticky; top:0; z-index:10;
}
.topbar .crumb{ font-size:13px; color:var(--ink-soft); min-width:0; flex:1; }
.topbar .crumb strong{ color:var(--ink); font-weight:600;}
.topbar .crumb-entity{ display:none; }
.topbar .user{ display:flex; align-items:center; gap:12px; font-size:13px;}
.topbar .user .ico{ display:none; width:16px; height:16px; }
.content{ padding:26px 28px 60px; width:100%; }

/* tables: horizontal scroll with edge shadows when wider than the screen */
.tbl-wrap{
  overflow-x:auto; -webkit-overflow-scrolling:touch; max-width:100%;
  background:
    linear-gradient(90deg, #fff 30%, rgba(255,255,255,0)) left / 28px 100% no-repeat local,
    linear-gradient(270deg, #fff 30%, rgba(255,255,255,0)) right / 28px 100% no-repeat local,
    radial-gradient(farthest-side at 0 50%, rgba(16,24,32,.14), transparent) left / 10px 100% no-repeat scroll,
    radial-gradient(farthest-side at 100% 50%, rgba(16,24,32,.14), transparent) right / 10px 100% no-repeat scroll;
}
.card > .tbl-wrap:last-child, .card > .tbl-wrap:last-child table{ border-bottom-left-radius:var(--radius); border-bottom-right-radius:var(--radius); }

/* Page header w/ signature gold rule */
.page-head{ margin-bottom:22px; padding-bottom:14px; border-bottom:2px solid var(--gold); display:flex; justify-content:space-between; align-items:flex-end;}
.page-head h1{ margin:0; font-size:24px; font-weight:600; }
.page-head p{ margin:4px 0 0; color:var(--ink-soft); font-size:13px;}

/* Cards */
.card{ background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); box-shadow:var(--shadow); }
.card .card-body{ padding:20px; }
.card .card-head{ padding:16px 20px; border-bottom:1px solid var(--border); font-weight:600; display:flex; justify-content:space-between; align-items:center;}
.grid{ display:grid; gap:18px; }
.grid-4{ grid-template-columns:repeat(4,1fr);}
.grid-3{ grid-template-columns:repeat(3,1fr);}
.grid-2{ grid-template-columns:repeat(2,1fr);}
.grid > *{ min-width:0; } /* long content must not stretch a grid column */

/* Stat tiles */
.stat{ padding:18px 20px; }
.stat .label{ font-size:11.5px; text-transform:uppercase; letter-spacing:.06em; color:var(--ink-soft); }
.stat .value{ font-family:'IBM Plex Mono',monospace; font-size:26px; font-weight:600; margin-top:6px; }
.stat.income .value{ color:var(--accent); }
.stat.expense .value{ color:var(--danger); }

/* Tables */
table.tbl{ width:100%; border-collapse:collapse; font-size:13.5px;}
table.tbl th{ text-align:left; font-size:11px; text-transform:uppercase; letter-spacing:.05em; color:var(--ink-soft); padding:10px 14px; border-bottom:1px solid var(--border); background:#FAFBFC;}
table.tbl td{ padding:11px 14px; border-bottom:1px solid var(--border); vertical-align:middle;}
table.tbl tr:hover td{ background:#FAFBFC; }
table.tbl td.amount, table.tbl th.amount{ text-align:right; }
table.tbl td.amount{ white-space:nowrap; } /* never split "₹" from its figure */
.text-right{text-align:right}

/* Buttons */
.btn{ display:inline-flex; align-items:center; gap:6px; padding:9px 16px; border-radius:8px; border:1px solid transparent; font-size:13.5px; font-weight:600; cursor:pointer; text-decoration:none; }
.btn-primary{ background:var(--accent); color:#fff; }
.btn-primary:hover{ background:#0B5849; text-decoration:none; color:#fff;}
.btn-outline{ background:#fff; border-color:var(--border); color:var(--ink); }
.btn-outline:hover{ background:#F5F6F8; text-decoration:none; }
.btn-danger{ background:var(--danger-soft); color:var(--danger); }
.btn-sm{ padding:5px 10px; font-size:12px; }

/* Forms */
label{ display:block; font-size:12.5px; font-weight:600; margin-bottom:5px; color:var(--ink); }
.form-group{ margin-bottom:16px; }
input[type=text],input[type=email],input[type=password],input[type=number],input[type=date],
input[type=search],input[type=tel],input[type=url],select,textarea{
  width:100%; padding:9px 12px; border:1px solid var(--border); border-radius:8px; font-size:13.5px;
  background:#fff; color:var(--ink); font-family:inherit;
}
input, select, textarea{ min-width:0; max-width:100%; } /* let fields shrink inside narrow grid/flex cells */
input[type=search]{ -webkit-appearance:none; appearance:none; }
input[type=search]::-webkit-search-decoration{ -webkit-appearance:none; }
input::placeholder, textarea::placeholder{ color:#9AA4AE; }
input:focus,select:focus,textarea:focus{ outline:2px solid var(--accent); outline-offset:1px; border-color:var(--accent); }
.help{ font-size:11.5px; color:var(--ink-soft); margin-top:4px; }
.error{ font-size:11.5px; color:var(--danger); margin-top:4px; }

/* Badges */
.badge{ display:inline-block; padding:2px 9px; border-radius:100px; font-size:11px; font-weight:600; }
.badge-green{ background:var(--accent-soft); color:var(--accent); }
.badge-red{ background:var(--danger-soft); color:var(--danger); }
.badge-gray{ background:#EEF0F2; color:var(--ink-soft); }
.badge-gold{ background:#FBF3DF; color:#8A6D1E; }

/* Alerts */
.alert{ padding:12px 16px; border-radius:8px; margin-bottom:16px; font-size:13.5px; }
.alert-success{ background:var(--accent-soft); color:var(--accent); border:1px solid #BFE2D8; }
.alert-error{ background:var(--danger-soft); color:var(--danger); border:1px solid #F0C9BF; }

/* Login */
.login-wrap{ min-height:100vh; min-height:100dvh; display:flex; align-items:center; justify-content:center; background:var(--sidebar); padding:20px 16px; }
.login-card{ width:100%; max-width:380px; background:#fff; border-radius:14px; padding:36px 32px; box-shadow:0 20px 60px rgba(0,0,0,.35); }
.login-card .brand{ text-align:center; margin-bottom:24px; }
.login-card .brand .name{ font-family:'Fraunces',serif; font-size:24px; font-weight:600; }
.login-card .brand .tag{ font-size:11px; text-transform:uppercase; letter-spacing:.09em; color:var(--gold); margin-top:2px;}
.login-card .btn-primary{ width:100%; justify-content:center; padding:11px; margin-top:6px;}

/* ===================================================================
   Charts (public/assets/js/charts.js)
   Series colours: validated categorical slots 1–2 (CVD ΔE 24.7, contrast ≥3:1 on #fff)
   =================================================================== */
.chart{
  --series-1:#2a78d6; --series-2:#eb6834;
  --chart-grid:#ECEEF1; --chart-base:#C9CED4; --chart-muted:#7A8590;
  position:relative;
}
.chart-card .card-body{ padding:16px 18px 12px; }
.grid-chart{ grid-template-columns:minmax(0,2fr) minmax(0,1fr); }
@media (max-width:1279px){ .grid-chart{ grid-template-columns:minmax(0,1fr); } }
.chart-sub{ font-size:12px; color:var(--ink-soft); font-weight:400; }
.chart-plot{ position:relative; width:100%; }
.chart svg{ display:block; overflow:visible; font-family:'Inter',system-ui,sans-serif; }
.chart-grid{ stroke:var(--chart-grid); stroke-width:1; shape-rendering:crispEdges; }
.chart-base{ stroke:var(--chart-base); stroke-width:1; shape-rendering:crispEdges; }
.chart-tick{ fill:var(--chart-muted); font-size:11px; font-variant-numeric:tabular-nums; }
.chart-cat{ fill:var(--ink); font-size:12px; }
.chart-val{ fill:var(--ink-soft); font-size:11.5px; font-weight:600; font-variant-numeric:tabular-nums; }
.chart-mark{ transition:opacity .15s ease; }
.chart-mark.dim{ opacity:.35; }
.chart-line{ fill:none; stroke:var(--series-1); stroke-width:2; stroke-linejoin:round; stroke-linecap:round; }
.chart-area{ fill:var(--series-1); opacity:.1; }
.chart-dot{ fill:var(--series-1); stroke:#fff; stroke-width:2; }
.chart-focus, .chart-cross{ display:none; pointer-events:none; }
.chart-cross{ stroke:var(--chart-base); stroke-width:1; }
.chart-hit{ fill:transparent; cursor:crosshair; outline:none; }
.chart-hit:focus-visible{ stroke:var(--accent); stroke-width:1.5; }
.chart-legend{ display:flex; flex-wrap:wrap; gap:6px 16px; font-size:12px; color:var(--ink-soft); margin:0 0 10px; }
.chart-legend-item{ display:inline-flex; align-items:center; gap:6px; }
.chart-legend-key{ width:10px; height:10px; border-radius:3px; display:inline-block; }
.chart-legend-key.line{ height:2px; width:14px; border-radius:2px; }
.chart-tip{
  display:none; position:absolute; z-index:5; pointer-events:none; min-width:140px;
  background:#fff; border:1px solid var(--border); border-radius:8px; padding:8px 10px;
  box-shadow:0 6px 20px rgba(16,24,32,.14); font-size:12px; white-space:nowrap;
}
.chart-tip-title{ color:var(--ink-soft); font-size:11px; margin-bottom:4px; }
.chart-tip-row{ display:flex; align-items:center; gap:7px; line-height:1.7; }
.chart-tip-row strong{ color:var(--ink); font-variant-numeric:tabular-nums; }
.chart-tip-key{ width:12px; height:2px; border-radius:2px; display:inline-block; }
.chart-tip-name{ color:var(--ink-soft); }
.chart-empty{ display:flex; align-items:center; justify-content:center; min-height:140px; color:var(--ink-soft); font-size:13px; background:#FAFBFC; border-radius:8px; }
.chart-table{ margin-top:8px; font-size:12px; }
.chart-table summary{ cursor:pointer; color:var(--accent); font-weight:600; font-size:12px; list-style:none; display:inline-block; padding:2px 0; }
.chart-table summary::-webkit-details-marker{ display:none; }
.chart-table summary::before{ content:'▸ '; }
.chart-table[open] summary::before{ content:'▾ '; }
.chart-table .tbl-wrap{ margin-top:8px; border:1px solid var(--border); border-radius:8px; max-height:280px; overflow:auto; }
.chart-table table.tbl{ font-size:12px; }
.chart-table table.tbl td, .chart-table table.tbl th{ padding:6px 10px; }
@media print{ .chart-table, .chart-tip{ display:none !important; } }

/* ===================================================================
   Responsive
   big screen ≥1600 · laptop 1024–1599 · tablet 768–1023 · mobile <768
   =================================================================== */

/* Big screens: keep lines and tables at a readable width */
@media (min-width:1600px){
  .content{ max-width:1680px; margin:0 auto; padding:32px 40px 70px; }
  .topbar{ padding:0 40px; }
}
@media (min-width:2200px){
  body{ font-size:15px; }
  .sidebar{ width:280px; }
  .content{ max-width:1960px; }
}

/* Small laptops */
@media (max-width:1279px){
  .sidebar{ width:224px; }
  .content{ padding:22px 22px 56px; }
  .grid-4{ grid-template-columns:repeat(2,1fr); }
  .grid-3{ grid-template-columns:repeat(2,1fr); }
}

/* Tablets & phones: sidebar becomes a slide-in drawer */
@media (max-width:1023px){
  .sidebar{
    position:fixed; left:0; top:0; bottom:0; z-index:60; width:min(290px, 86vw);
    transform:translateX(-100%); transition:transform .24s ease; box-shadow:none;
    padding-top:env(safe-area-inset-top); padding-bottom:env(safe-area-inset-bottom);
  }
  body.nav-open .sidebar{ transform:none; box-shadow:12px 0 40px rgba(0,0,0,.3); }
  .nav-overlay{
    display:block; position:fixed; inset:0; z-index:55; background:rgba(10,18,24,.45);
    opacity:0; pointer-events:none; transition:opacity .24s ease;
  }
  body.nav-open .nav-overlay{ opacity:1; pointer-events:auto; }
  body.nav-open{ overflow:hidden; }
  .nav-close{ display:inline-flex; align-items:center; justify-content:center; }
  .nav a{ padding:11px 12px; }

  .topbar{ padding:0 16px; gap:12px; }
  .nav-toggle{ display:inline-flex; align-items:center; justify-content:center; width:40px; height:40px; margin-left:-8px; border-radius:8px; color:var(--ink); flex-shrink:0; }
  .nav-toggle:hover{ background:var(--bg); }
  .topbar .crumb{ display:flex; flex-direction:column; line-height:1.25; overflow:hidden; }
  .topbar .crumb-entity{ display:block; font-size:11px; color:var(--gold); font-weight:600; text-transform:uppercase; letter-spacing:.05em; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
  .topbar .crumb strong{ white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
  .topbar .user-email{ display:none; }
}

/* Phones */
@media (max-width:767px){
  body{ font-size:14px; }
  .topbar{ height:56px; padding:0 12px; padding-left:max(12px, env(safe-area-inset-left)); padding-right:max(12px, env(safe-area-inset-right)); }
  .topbar .user{ gap:6px; }
  .topbar .user .ico{ display:block; }
  .topbar .user .lbl{ display:none; }
  .topbar .user .btn-sm{ padding:0; width:38px; height:38px; justify-content:center; }

  .content{ padding:16px 14px 48px; }
  .page-head{ flex-direction:column; align-items:stretch; gap:12px; margin-bottom:16px; }
  .page-head h1{ font-size:21px; }
  .page-head > div:last-child:not(:first-child), .page-head > a{ display:flex; flex-wrap:wrap; gap:8px; }
  .page-head > a.btn{ justify-content:center; }

  .grid{ gap:12px; }
  .grid-2, .grid-3{ grid-template-columns:minmax(0,1fr); }
  .grid-4{ grid-template-columns:repeat(2, minmax(0,1fr)); }
  .stat{ padding:14px 14px; }
  .stat .value{ font-size:19px; word-break:break-word; }
  .stat .label{ font-size:10.5px; }

  .card .card-body{ padding:16px; }
  .card .card-head{ padding:13px 16px; flex-wrap:wrap; gap:8px; }

  table.tbl{ font-size:13px; }
  table.tbl th{ padding:9px 10px; white-space:nowrap; }
  table.tbl td{ padding:10px 10px; }
  table.tbl td.amount, table.tbl td.text-right, table.tbl td.mono{ white-space:nowrap; }

  /* inline filter bars (date ranges etc.) wrap onto several lines */
  form.card[style*="display:flex"], .card-body[style*="display:flex"]{ flex-wrap:wrap; }
  form.card[style*="display:flex"] > .form-group{ flex:1 1 140px; }

  /* 16px inputs stop iOS from zooming in on focus; bigger tap targets */
  input[type=text],input[type=email],input[type=password],input[type=number],input[type=date],
  input[type=search],input[type=tel],input[type=url],select,textarea{ font-size:16px; padding:10px 12px; }
  .btn{ padding:10px 16px; }
  .btn-sm{ padding:7px 11px; }

  .login-card{ padding:28px 22px; }
}

/* Small phones: stats stay two-up (less scrolling) with tighter figures */
@media (max-width:420px){
  .content{ padding:14px 12px 44px; }
  .stat{ padding:12px; }
  .stat .value{ font-size:16px; }
}
@media (max-width:330px){
  .grid-4{ grid-template-columns:minmax(0,1fr); }
}
td.nowrap, th.nowrap{ white-space:nowrap; }

/* Printing any regular page: drop the app chrome */
@media print{
  .sidebar, .topbar, .nav-overlay, .page-head .btn, form .btn{ display:none !important; }
  .app-shell{ display:block; }
  .content{ padding:0; max-width:none; }
  .card{ box-shadow:none; }
  body{ background:#fff; }
}