/* =====================================================================
   M/s Verma Aalu Company — Design System
   Aesthetic: "Modern mandi bahi-khata" — ledger green + marigold saffron
   on warm paper-cream. Devanagari-first, accounting-grade legibility.
   Fonts (loaded in <head>): Tiro Devanagari Hindi (display), Mukta (UI).
   ===================================================================== */

:root {
  /* brand */
  --green-900: #0c3d27;
  --green-800: #0f5132;
  --green-700: #15663f;
  --green-600: #1e7a4d;
  --green-100: #d9ece1;
  --green-50:  #eef6f1;

  --saffron:   #e8920c;
  --marigold:  #f5a623;
  --gold-100:  #fdebcd;

  --paper:     #fbf7ef;   /* page background */
  --cream:     #fffdf8;   /* card surface */
  --ink:       #1a1c1a;   /* primary text */
  --muted:     #6b6f6a;   /* secondary text */
  --line:      #e7e0d2;   /* hairline borders */
  --line-2:    #d8cfbc;

  /* accounting semantics */
  --dr:        #b3261e;   /* naame / receivable (red ink) */
  --dr-bg:     #fdeceb;
  --cr:        #15663f;   /* jama / payable (green) */
  --cr-bg:     #e7f3ec;

  --radius:    14px;
  --radius-sm: 9px;
  --shadow:    0 1px 2px rgba(26,28,26,.04), 0 8px 24px -12px rgba(12,61,39,.18);
  --shadow-lg: 0 24px 60px -24px rgba(12,61,39,.35);

  --font-display: "Tiro Devanagari Hindi", "Mukta", serif;
  --font-ui: "Mukta", "Tiro Devanagari Hindi", system-ui, sans-serif;

  --sidebar-w: 256px;
}

/* ---------------- reset / base ---------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-ui);
  color: var(--ink);
  background-color: var(--paper);
  /* subtle paper texture + ledger rule glow */
  background-image:
    radial-gradient(1200px 500px at 110% -10%, rgba(245,166,35,.10), transparent 60%),
    radial-gradient(900px 500px at -10% 0%, rgba(21,102,63,.08), transparent 55%);
  background-attachment: fixed;
  line-height: 1.5;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
h1,h2,h3,h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.2; margin: 0 0 .4em; color: var(--green-900); }
a { color: var(--green-700); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
.num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum" 1; }

/* ---------------- utility ---------------- */
.container { width: min(1180px, 92vw); margin-inline: auto; }
.row { display: flex; gap: 16px; flex-wrap: wrap; }
.between { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.center { display: flex; align-items: center; gap: 8px; }
.grow { flex: 1 1 auto; }
.muted { color: var(--muted); }
.right { text-align: right; }
.center-text { text-align: center; }
.nowrap { white-space: nowrap; }
.mt0{margin-top:0}.mt1{margin-top:8px}.mt2{margin-top:16px}.mt3{margin-top:24px}
.mb0{margin-bottom:0}.mb1{margin-bottom:8px}.mb2{margin-bottom:16px}.mb3{margin-bottom:24px}
.hide { display: none !important; }
.dr-text { color: var(--dr); font-weight: 600; }
.cr-text { color: var(--cr); font-weight: 600; }

/* ---------------- buttons ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-ui); font-weight: 600; font-size: 15px;
  padding: 11px 18px; border-radius: var(--radius-sm); border: 1px solid transparent;
  cursor: pointer; transition: transform .06s ease, box-shadow .15s ease, background .15s ease;
  text-decoration: none; line-height: 1; white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--green-700); color: #fff; box-shadow: var(--shadow); }
.btn-primary:hover { background: var(--green-800); text-decoration: none; }
.btn-accent { background: var(--saffron); color: #3a2400; }
.btn-accent:hover { background: var(--marigold); text-decoration: none; }
.btn-ghost { background: var(--cream); color: var(--green-800); border-color: var(--line-2); }
.btn-ghost:hover { background: #fff; text-decoration: none; }
.btn-danger { background: var(--dr-bg); color: var(--dr); border-color: #f2c9c6; }
.btn-danger:hover { background: #fbdedb; text-decoration:none; }
.btn-sm { padding: 7px 12px; font-size: 13px; }
.btn-lg { padding: 14px 24px; font-size: 17px; }
.btn-block { width: 100%; }
.btn-icon { padding: 9px; }

/* ---------------- cards ---------------- */
.card {
  background: var(--cream); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.card-pad { padding: 20px; }
.card-head {
  padding: 16px 20px; border-bottom: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.card-head h3 { margin: 0; font-size: 18px; }
.card-body { padding: 18px 20px; }

/* ---------------- KPI tiles ---------------- */
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px,1fr)); gap: 14px; }
.kpi {
  position: relative; background: var(--cream); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 16px 18px; overflow: hidden;
  box-shadow: var(--shadow);
}
.kpi::before { content:""; position:absolute; inset:0 auto 0 0; width:5px; background: var(--green-600); }
.kpi.kpi-dr::before { background: var(--dr); }
.kpi.kpi-cr::before { background: var(--cr); }
.kpi.kpi-gold::before { background: var(--saffron); }
.kpi .k-label { font-size: 13.5px; color: var(--muted); font-weight: 600; }
.kpi .k-value { font-family: var(--font-display); font-size: 27px; color: var(--green-900); margin-top: 4px; font-variant-numeric: tabular-nums; }
.kpi .k-sub { font-size: 12.5px; color: var(--muted); margin-top: 2px; }

/* ---------------- tables (accounting) ---------------- */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--line); background: var(--cream); }
table.tbl { width: 100%; border-collapse: collapse; font-size: 14.5px; }
table.tbl thead th {
  background: var(--green-50); color: var(--green-900); text-align: left;
  font-weight: 700; padding: 11px 14px; border-bottom: 2px solid var(--green-100);
  position: sticky; top: 0; white-space: nowrap;
}
table.tbl tbody td { padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.tbl tbody tr:nth-child(even) { background: #fcfaf4; }
table.tbl tbody tr:hover { background: var(--gold-100); }
table.tbl td.num, table.tbl th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
table.tbl tfoot td { padding: 12px 14px; font-weight: 700; background: var(--green-50); border-top: 2px solid var(--green-100); }
.table-empty { padding: 40px; text-align: center; color: var(--muted); }

/* ---------------- badges ---------------- */
.badge {
  display: inline-flex; align-items: center; gap: 5px; font-size: 12.5px; font-weight: 600;
  padding: 4px 10px; border-radius: 999px; background: var(--green-50); color: var(--green-800);
  border: 1px solid var(--green-100);
}
.badge-gold { background: var(--gold-100); color: #7a4a00; border-color: #f3d9a8; }
.badge-dr { background: var(--dr-bg); color: var(--dr); border-color: #f2c9c6; }
.badge-cr { background: var(--cr-bg); color: var(--cr); border-color: #bfe0cd; }
.badge-muted { background: #efece4; color: var(--muted); border-color: var(--line); }

/* ---------------- forms ---------------- */
.field { margin-bottom: 15px; }
.field > label { display: block; font-size: 14px; font-weight: 600; color: var(--green-900); margin-bottom: 6px; }
.field .req { color: var(--dr); }
.input, .select, textarea, select {
  width: 100%; font-family: var(--font-ui); font-size: 15.5px; color: var(--ink);
  background: #fff; border: 1.5px solid var(--line-2); border-radius: var(--radius-sm);
  padding: 11px 13px; transition: border-color .15s, box-shadow .15s;
}
.input:focus, .select:focus, textarea:focus, select:focus {
  outline: none; border-color: var(--green-600); box-shadow: 0 0 0 3px rgba(30,122,77,.15);
}
.input.num, input.num { text-align: right; font-variant-numeric: tabular-nums; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 0 18px; }
.help { font-size: 12.5px; color: var(--muted); margin-top: 4px; }

/* ---------------- alerts / flash ---------------- */
.alert { padding: 12px 16px; border-radius: var(--radius-sm); font-weight: 600; margin-bottom: 16px; border: 1px solid; }
.alert-success { background: var(--cr-bg); color: var(--cr); border-color: #bfe0cd; }
.alert-error { background: var(--dr-bg); color: var(--dr); border-color: #f2c9c6; }
.alert-info { background: var(--gold-100); color: #7a4a00; border-color: #f3d9a8; }

/* ---------------- app shell (admin / portal) ---------------- */
.app { display: flex; min-height: 100vh; }
.sidebar {
  width: var(--sidebar-w); flex-shrink: 0; background: linear-gradient(180deg, var(--green-900), var(--green-800));
  color: #e7f0ea; position: sticky; top: 0; height: 100vh; overflow-y: auto;
  border-right: 3px solid var(--saffron);
}
.sidebar .brand { padding: 18px 20px 14px; border-bottom: 1px solid rgba(255,255,255,.12); }
.sidebar .brand .om { color: var(--marigold); font-size: 13px; letter-spacing: 1px; }
.sidebar .brand h2 { color: #fff; font-size: 20px; margin: 4px 0 0; }
.sidebar .brand .sub { font-size: 12px; color: #aecdba; }
.nav { padding: 10px 10px 30px; }
.nav .nav-section { font-size: 11.5px; text-transform: uppercase; letter-spacing: .08em; color: #8fb6a0; padding: 14px 12px 6px; }
.nav a {
  display: flex; align-items: center; gap: 11px; padding: 10px 12px; border-radius: 9px;
  color: #d5e6dc; font-weight: 600; font-size: 15px; margin-bottom: 2px;
}
.nav a:hover { background: rgba(255,255,255,.08); color: #fff; text-decoration: none; }
.nav a.active { background: var(--saffron); color: #3a2400; }
.nav a .ic { width: 20px; text-align: center; font-size: 17px; }

.main { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  background: var(--cream); border-bottom: 1px solid var(--line); padding: 12px 22px;
  display: flex; align-items: center; gap: 14px; position: sticky; top: 0; z-index: 20;
  box-shadow: 0 1px 0 rgba(0,0,0,.02);
}
.topbar .page-title { font-family: var(--font-display); font-size: 21px; color: var(--green-900); margin: 0; }
.topbar .spacer { flex: 1; }
.user-chip { display: flex; align-items: center; gap: 9px; padding: 6px 8px 6px 12px; border-radius: 999px; background: var(--green-50); border: 1px solid var(--green-100); }
.user-chip .av { width: 32px; height: 32px; border-radius: 50%; background: var(--green-700); color: #fff; display: grid; place-items: center; font-weight: 700; }
.content { padding: 22px; flex: 1; }
.page-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* mobile menu toggle */
.menu-btn { display: none; background: var(--green-700); color: #fff; border: none; border-radius: 9px; padding: 9px 12px; font-size: 18px; cursor: pointer; }
.scrim { display: none; }

/* bottom nav for phones (PWA feel) */
.bottom-nav { display: none; }

/* ---------------- responsive ---------------- */
@media (max-width: 880px) {
  .sidebar {
    position: fixed; left: 0; top: 0; z-index: 60; transform: translateX(-100%);
    transition: transform .25s ease; box-shadow: var(--shadow-lg);
  }
  .app.nav-open .sidebar { transform: translateX(0); }
  .app.nav-open .scrim { display: block; position: fixed; inset: 0; background: rgba(12,61,39,.45); z-index: 50; }
  .menu-btn { display: inline-flex; }
  .content { padding: 16px 14px 84px; }
  .kpi .k-value { font-size: 23px; }

  /* bottom tab bar */
  .bottom-nav {
    display: flex; position: fixed; bottom: 0; left: 0; right: 0; z-index: 40;
    background: var(--cream); border-top: 1px solid var(--line); padding: 6px 4px env(safe-area-inset-bottom);
    box-shadow: 0 -6px 20px -12px rgba(0,0,0,.3);
  }
  .bottom-nav a { flex: 1; text-align: center; font-size: 11px; color: var(--muted); font-weight: 600; padding: 6px 2px; border-radius: 8px; }
  .bottom-nav a .ic { display: block; font-size: 20px; margin-bottom: 2px; }
  .bottom-nav a.active { color: var(--green-800); background: var(--green-50); }
}

/* ---------------- print ---------------- */
@media print {
  .sidebar, .topbar, .bottom-nav, .page-actions, .no-print { display: none !important; }
  body { background: #fff; }
  .content { padding: 0; }
  .card { box-shadow: none; border: none; }
}
