/* ============================================================
   Yodha Nutrition — Billing Panel
   Palette: deep espresso brand, turmeric-gold accent,
   cool neutral canvas. Warrior / Ayurvedic identity.
   ============================================================ */
:root{
  --ink:#1c1917;          /* near-black text            */
  --brand:#2a1c17;        /* espresso — sidebar / header */
  --brand-2:#3a271f;      /* lighter espresso           */
  --gold:#c98a1b;         /* turmeric gold accent        */
  --gold-soft:#f3e4c4;    /* gold tint                  */
  --canvas:#f3f4f6;       /* cool neutral background     */
  --card:#ffffff;
  --line:#e6e7eb;
  --muted:#6b7280;
  --green:#1f7a54; --green-bg:#e5f4ec;
  --amber:#9a6b12; --amber-bg:#fbf0d9;
  --red:#a52020;   --red-bg:#fbe9e9;
  --radius:12px;
  --shadow:0 1px 2px rgba(20,18,16,.05),0 6px 20px rgba(20,18,16,.05);
  --font:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --serif:"Fraunces",Georgia,"Times New Roman",serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--font); color:var(--ink); background:var(--canvas);
  font-size:14.5px; line-height:1.5; -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;font-weight:650;letter-spacing:-.01em}

/* ---- Layout shell ---- */
.shell{display:flex;min-height:100vh}
.sidebar{
  width:230px;flex-shrink:0;background:var(--brand);color:#e8e2da;
  display:flex;flex-direction:column;position:sticky;top:0;height:100vh;
}
.brand{padding:22px 20px 18px;border-bottom:1px solid rgba(255,255,255,.08)}
.brand .mark{font-family:var(--serif);font-size:21px;font-weight:600;color:#fff;line-height:1.1}
.brand .mark b{color:var(--gold)}
.brand .sub{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:#a99f93;margin-top:5px}
.nav{padding:14px 12px;display:flex;flex-direction:column;gap:2px;flex:1}
.nav a{
  display:flex;align-items:center;gap:11px;padding:10px 13px;border-radius:9px;
  color:#c9c1b7;font-weight:500;font-size:14px;transition:.15s;
}
.nav a .ic{width:18px;height:18px;flex-shrink:0;opacity:.85}
.nav a:hover{background:rgba(255,255,255,.06);color:#fff}
.nav a.active{background:var(--gold);color:#231810;font-weight:600}
.nav a.active .ic{opacity:1}
.sidebar .foot{padding:14px 18px;border-top:1px solid rgba(255,255,255,.08);font-size:12px;color:#9c9288}
.sidebar .foot a{color:var(--gold);font-weight:600}

.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{
  height:62px;background:var(--card);border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;padding:0 26px;position:sticky;top:0;z-index:5;
}
.topbar h1{font-size:19px}
.content{padding:26px;max-width:1180px;width:100%}

/* ---- Flash ---- */
.flash{
  background:var(--gold-soft);border:1px solid #e6cf9a;color:#7a5610;
  padding:11px 16px;border-radius:10px;margin-bottom:20px;font-weight:500;font-size:13.5px;
}

/* ---- Cards / stats ---- */
.grid{display:grid;gap:18px}
.stats{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.stat{padding:18px 20px}
.stat .label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-weight:600}
.stat .value{font-size:26px;font-weight:700;margin-top:8px;letter-spacing:-.02em}
.stat .value.gold{color:var(--gold)}
.stat .value.green{color:var(--green)}

/* ---- Section headers ---- */
.section-head{display:flex;align-items:center;justify-content:space-between;margin:26px 0 14px}
.section-head:first-child{margin-top:0}
.section-head h2{font-size:16px}

/* ---- Tables ---- */
.tablewrap{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
table{width:100%;border-collapse:collapse;font-size:14px}
thead th{
  text-align:left;padding:12px 16px;background:#faf9f7;color:var(--muted);
  font-size:12px;text-transform:uppercase;letter-spacing:.05em;font-weight:600;border-bottom:1px solid var(--line);
}
tbody td{padding:13px 16px;border-bottom:1px solid var(--line)}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:#fcfbf9}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.muted{color:var(--muted)}
.empty{padding:44px;text-align:center;color:var(--muted)}

/* ---- Pills ---- */
.pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600}
.pill-green{background:var(--green-bg);color:var(--green)}
.pill-amber{background:var(--amber-bg);color:var(--amber)}
.pill-red{background:var(--red-bg);color:var(--red)}

/* ---- Buttons ---- */
.btn{
  display:inline-flex;align-items:center;gap:7px;padding:9px 16px;border-radius:9px;
  font-weight:600;font-size:14px;cursor:pointer;border:1px solid transparent;transition:.15s;line-height:1;
}
.btn-primary{background:var(--gold);color:#231810}
.btn-primary:hover{background:#b87a13}
.btn-dark{background:var(--brand);color:#fff}
.btn-dark:hover{background:var(--brand-2)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:#cfd1d6;background:#fafafa}
.btn-danger{background:#fff;border-color:#eabcbc;color:var(--red)}
.btn-danger:hover{background:var(--red-bg)}
.btn-sm{padding:6px 11px;font-size:13px}
.btn-block{width:100%;justify-content:center}

/* ---- Forms ---- */
.form-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}
label{display:block;font-size:12.5px;font-weight:600;color:#44403c;margin-bottom:6px}
input,select,textarea{
  width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:8px;font:inherit;font-size:14px;
  background:#fff;color:var(--ink);transition:.15s;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(201,138,27,.14)}
.field{margin-bottom:15px}
.row{display:grid;gap:14px}
.row-2{grid-template-columns:1fr 1fr}
.row-3{grid-template-columns:1fr 1fr 1fr}
.row-4{grid-template-columns:1fr 1fr 1fr 1fr}
.check{display:flex;align-items:center;gap:9px;font-size:13.5px;color:#44403c}
.check input{width:auto}
.hint{font-size:12px;color:var(--muted);margin-top:5px}

/* ---- Invoice builder ---- */
.line-table input,.line-table select{padding:7px 9px}
.line-table td{padding:7px 6px;border:none}
.line-table th{padding:8px 6px;font-size:11px}
.line-total-cell{font-variant-numeric:tabular-nums;font-weight:600;white-space:nowrap}
.totals-box{margin-left:auto;max-width:340px}
.totals-box .r{display:flex;justify-content:space-between;padding:7px 0;font-size:14px}
.totals-box .r.grand{border-top:2px solid var(--ink);margin-top:6px;padding-top:11px;font-size:18px;font-weight:700}
.totals-box .r.grand span:last-child{color:var(--gold)}

/* ============================================================
   PRINTABLE INVOICE
   ============================================================ */
.invoice-page{max-width:820px;margin:24px auto;background:#fff;padding:0}
.inv-toolbar{max-width:820px;margin:0 auto 14px;display:flex;gap:10px;justify-content:flex-end}
.invoice{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:44px 46px;box-shadow:var(--shadow);color:#1c1917;
}
.inv-head{display:flex;justify-content:space-between;align-items:flex-start;padding-bottom:22px;border-bottom:3px solid var(--brand)}
.inv-brand .mark{font-family:var(--serif);font-size:28px;font-weight:600;color:var(--brand)}
.inv-brand .mark b{color:var(--gold)}
.inv-brand .tag{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--gold);margin-top:2px;font-weight:600}
.inv-brand .meta{font-size:12.5px;color:var(--muted);margin-top:10px;line-height:1.6}
.inv-title{text-align:right}
.inv-title .word{font-size:30px;font-weight:700;letter-spacing:.02em;color:var(--brand);font-family:var(--serif)}
.inv-title .no{font-size:14px;margin-top:6px;font-weight:600}
.inv-title .date{font-size:12.5px;color:var(--muted);margin-top:2px}

.inv-parties{display:flex;justify-content:space-between;gap:30px;margin:24px 0}
.inv-parties .box{flex:1}
.inv-parties .cap{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:700;margin-bottom:6px}
.inv-parties .name{font-weight:650;font-size:15px}
.inv-parties .lines{font-size:13px;color:#44403c;margin-top:3px;line-height:1.55;white-space:pre-line}

.inv-table{width:100%;border-collapse:collapse;margin-top:8px}
.inv-table thead th{background:var(--brand);color:#fff;padding:10px 12px;font-size:12px;text-transform:uppercase;letter-spacing:.04em;font-weight:600}
.inv-table thead th.num{text-align:right}
.inv-table tbody td{padding:11px 12px;border-bottom:1px solid var(--line);font-size:13.5px;vertical-align:top}
.inv-table tbody td.num{text-align:right;font-variant-numeric:tabular-nums}
.inv-table .idx{color:var(--muted);width:34px}

.inv-foot{display:flex;justify-content:space-between;gap:30px;margin-top:20px}
.inv-words{flex:1;font-size:12.5px}
.inv-words .cap{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:700;margin-bottom:4px}
.inv-words .amt{font-weight:600;color:var(--brand)}
.inv-totals{width:300px}
.inv-totals .r{display:flex;justify-content:space-between;padding:6px 0;font-size:13.5px}
.inv-totals .r.grand{border-top:2px solid var(--brand);margin-top:5px;padding-top:10px;font-weight:700;font-size:17px;color:var(--brand)}
.inv-paid{margin-top:8px;text-align:right}

.inv-terms{margin-top:28px;padding-top:18px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:30px}
.inv-terms .cap{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:700;margin-bottom:6px}
.inv-terms .body{font-size:11.5px;color:#57534e;white-space:pre-line;line-height:1.6;flex:1}
.inv-sign{text-align:center;width:200px;align-self:flex-end}
.inv-sign .line{border-top:1px solid #9c9288;margin-top:44px;padding-top:6px;font-size:12px;color:var(--muted)}
.inv-thanks{text-align:center;margin-top:26px;font-size:12.5px;color:var(--gold);font-weight:600;letter-spacing:.03em}

/* ---- Login ---- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(1200px 600px at 50% -10%,#3a271f 0%,#2a1c17 55%,#1a110d 100%);padding:20px}
.login-card{background:#fff;border-radius:16px;box-shadow:0 20px 60px rgba(0,0,0,.35);width:100%;max-width:380px;padding:36px 34px}
.login-card .mark{font-family:var(--serif);font-size:26px;font-weight:600;text-align:center;color:var(--brand)}
.login-card .mark b{color:var(--gold)}
.login-card .sub{text-align:center;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:6px 0 26px}
.login-card .err{background:var(--red-bg);color:var(--red);padding:10px 14px;border-radius:9px;font-size:13px;margin-bottom:16px;text-align:center}

/* ---- Responsive ---- */
@media(max-width:900px){
  .stats{grid-template-columns:repeat(2,1fr)}
  .row-2,.row-3,.row-4{grid-template-columns:1fr}
  .sidebar{width:64px}
  .brand .mark,.brand .sub,.nav a span,.sidebar .foot{display:none}
  .nav a{justify-content:center;padding:12px}
}
@media(max-width:560px){.stats{grid-template-columns:1fr}.content{padding:16px}}

/* ---- Print ---- */
@media print{
  @page{size:A4;margin:14mm}
  body{background:#fff}
  .sidebar,.topbar,.inv-toolbar,.no-print{display:none !important}
  .invoice-page{margin:0;max-width:100%}
  .invoice{border:none;box-shadow:none;border-radius:0;padding:0}
  .inv-table thead th{-webkit-print-color-adjust:exact;print-color-adjust:exact}
}