/* =====================================================================
   SIXTEEN BUILDCON — Design system
   Clean corporate blue/white · sidebar layout
   ===================================================================== */
:root{
  --blue-900:#0b2545; --blue-700:#12467b; --blue-600:#1665c0; --blue-500:#2680eb;
  --blue-50:#eef4fc; --blue-100:#dbe8f8;
  --ink:#121826; --ink-2:#3d4759; --muted:#6b7688; --faint:#9aa3b2;
  --line:#e5e9f0; --line-2:#eef1f6;
  --bg:#f4f6fa; --card:#ffffff;
  --green:#0f7b4f; --green-bg:#e3f6ec;
  --amber:#a86a00; --amber-bg:#fff3d9;
  --red:#b3261e;   --red-bg:#fdeceb;
  --grey-bg:#eef0f4;
  --r:12px; --r-lg:16px;
  --sh:0 1px 2px rgba(16,24,40,.05), 0 1px 3px rgba(16,24,40,.04);
  --sh-md:0 4px 14px rgba(16,24,40,.07);
  --sidebar-w:250px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
  background:var(--bg); color:var(--ink); font-size:14.5px; line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
.hidden{display:none!important}
button{cursor:pointer;font:inherit;color:inherit}
a{color:var(--blue-600)}
.muted{color:var(--muted)}
.error{color:var(--red);font-size:13px;min-height:16px}

/* ---------------- LOGIN ---------------- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(160deg,#0b2545 0%,#12467b 55%,#1665c0 100%);padding:20px}
.login-card{background:#fff;padding:44px 40px;border-radius:20px;width:100%;max-width:400px;
  box-shadow:0 24px 70px rgba(4,16,36,.45);text-align:center}
.login-logo{width:120px;height:120px;object-fit:contain;margin:0 auto 14px;display:block}
.login-card h1{margin:0;font-size:21px;letter-spacing:1.6px;font-weight:800}
.login-card .tagline{margin:5px 0 26px;color:var(--muted);font-size:13.5px}
.login-card .fld{text-align:left;margin-bottom:14px}
.login-card label{display:block;font-size:12.5px;font-weight:600;color:var(--ink-2);margin-bottom:6px}
.login-card input{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;font-size:15px}
.login-card input:focus{outline:none;border-color:var(--blue-500);box-shadow:0 0 0 3px var(--blue-50)}
.login-card button[type=submit]{width:100%;padding:13px;background:var(--blue-700);color:#fff;border:none;
  border-radius:10px;font-weight:700;font-size:15px;margin-top:6px;transition:background .15s}
.login-card button[type=submit]:hover{background:var(--blue-600)}
.login-foot{margin-top:22px;font-size:11.5px;color:var(--faint);letter-spacing:.3px}

/* ---------------- APP LAYOUT ---------------- */
.layout{display:flex;min-height:100vh}

.sidebar{width:var(--sidebar-w);flex:0 0 var(--sidebar-w);background:#fff;
  border-right:1px solid var(--line);display:flex;flex-direction:column;
  position:fixed;top:0;bottom:0;left:0;z-index:20}
.side-brand{display:flex;align-items:center;gap:12px;padding:20px 20px 18px;border-bottom:1px solid var(--line-2)}
.side-brand img{width:46px;height:46px;object-fit:contain}
.side-brand .txt b{display:block;font-size:14px;letter-spacing:1px;line-height:1.2}
.side-brand .txt span{font-size:11px;color:var(--muted);letter-spacing:.4px}
.side-nav{padding:14px 12px;flex:1;overflow-y:auto}
.side-label{font-size:10.5px;text-transform:uppercase;letter-spacing:.9px;color:var(--faint);
  font-weight:700;padding:12px 10px 6px}
.side-nav button{display:flex;align-items:center;gap:11px;width:100%;background:none;border:none;
  padding:10px 12px;border-radius:9px;font-size:14px;color:var(--ink-2);font-weight:500;
  text-align:left;margin-bottom:2px;transition:all .13s}
.side-nav button svg{width:18px;height:18px;flex:0 0 18px;stroke:currentColor;fill:none;stroke-width:1.9}
.side-nav button:hover{background:var(--blue-50);color:var(--blue-700)}
.side-nav button.active{background:var(--blue-700);color:#fff;font-weight:600;box-shadow:var(--sh)}
.side-foot{padding:14px;border-top:1px solid var(--line-2)}
.user-chip{display:flex;align-items:center;gap:10px;padding:8px;border-radius:10px;background:var(--blue-50)}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--blue-700);color:#fff;display:flex;
  align-items:center;justify-content:center;font-weight:700;font-size:14px;flex:0 0 34px}
.user-chip .who{flex:1;min-width:0}
.user-chip .who b{display:block;font-size:12.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.user-chip .who span{font-size:11px;color:var(--muted)}
.icon-btn{background:none;border:none;padding:6px;border-radius:7px;color:var(--muted);display:flex}
.icon-btn:hover{background:#fff;color:var(--red)}
.icon-btn svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:2}

.main{flex:1;margin-left:var(--sidebar-w);min-width:0;display:flex;flex-direction:column}
.topbar{background:#fff;border-bottom:1px solid var(--line);padding:15px 30px;display:flex;
  align-items:center;gap:16px;position:sticky;top:0;z-index:15}
.topbar h1{margin:0;font-size:19px;font-weight:700;letter-spacing:-.2px}
.topbar .sub{font-size:12.5px;color:var(--muted);margin-top:1px}
.topbar .spacer{flex:1}
.topbar-actions{display:flex;gap:9px;flex-wrap:wrap}
.content{padding:26px 30px 60px;max-width:1240px;width:100%}

/* mobile */
.hamburger{display:none}
@media(max-width:900px){
  .sidebar{transform:translateX(-100%);transition:transform .22s;box-shadow:var(--sh-md)}
  .sidebar.open{transform:none}
  .main{margin-left:0}
  .hamburger{display:flex}
  .content{padding:18px 16px 50px}
  .topbar{padding:13px 16px}
}

/* ---------------- CARDS ---------------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh);margin-bottom:20px}
.card-head{display:flex;align-items:center;gap:12px;padding:17px 20px;border-bottom:1px solid var(--line-2);flex-wrap:wrap}
.card-head h2{margin:0;font-size:15.5px;font-weight:700;flex:1}
.card-head .hint{font-size:12.5px;color:var(--muted);font-weight:400}
.card-body{padding:20px}
.card-body.tight{padding:0}

/* KPI */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin-bottom:20px}
.kpi{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:18px 20px;box-shadow:var(--sh);
  position:relative;overflow:hidden}
.kpi .ic{width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.kpi .ic svg{width:19px;height:19px;stroke-width:2;fill:none}
.kpi .lbl{font-size:12.5px;color:var(--muted);font-weight:500}
.kpi .val{font-size:25px;font-weight:800;letter-spacing:-.7px;margin-top:3px;line-height:1.15}
.kpi .foot{font-size:11.5px;color:var(--faint);margin-top:5px}
.ic.b{background:var(--blue-50);color:var(--blue-700)}
.ic.g{background:var(--green-bg);color:var(--green)}
.ic.a{background:var(--amber-bg);color:var(--amber)}
.ic.r{background:var(--red-bg);color:var(--red)}

/* quick action tiles */
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin-bottom:22px}
.tile{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:18px;text-align:left;
  box-shadow:var(--sh);transition:all .15s;display:flex;align-items:center;gap:13px}
.tile:hover{border-color:var(--blue-500);box-shadow:var(--sh-md);transform:translateY(-1px)}
.tile .ic{width:40px;height:40px;border-radius:11px;background:var(--blue-700);color:#fff;
  display:flex;align-items:center;justify-content:center;flex:0 0 40px}
.tile .ic svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2}
.tile b{display:block;font-size:14px}
.tile span{font-size:12px;color:var(--muted)}

/* ---------------- BUTTONS ---------------- */
.btn{display:inline-flex;align-items:center;gap:7px;background:var(--blue-700);color:#fff;border:none;
  padding:10px 17px;border-radius:9px;font-weight:600;font-size:14px;transition:all .14s;white-space:nowrap}
.btn:hover{background:var(--blue-600)}
.btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2}
.btn.ghost{background:#fff;color:var(--ink-2);border:1.4px solid var(--line)}
.btn.ghost:hover{background:var(--blue-50);border-color:var(--blue-500);color:var(--blue-700)}
.btn.soft{background:var(--blue-50);color:var(--blue-700)}
.btn.soft:hover{background:var(--blue-100)}
.btn.danger{background:var(--red)}
.btn.danger:hover{filter:brightness(1.08)}
.btn.sm{padding:6.5px 12px;font-size:12.8px;border-radius:8px}
.btn.sm svg{width:14px;height:14px}
.btn.lg{padding:12px 24px;font-size:15px}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn-row{display:flex;gap:10px;flex-wrap:wrap}

/* ---------------- FORMS ---------------- */
.grid{display:grid;gap:16px}
.grid.c2{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.grid.c3{grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}
.fld label{display:block;font-size:12.5px;font-weight:600;color:var(--ink-2);margin-bottom:6px}
.fld .req{color:var(--red)}
input,select,textarea{width:100%;padding:10px 12px;border:1.4px solid var(--line);border-radius:9px;
  font-size:14px;font-family:inherit;background:#fff;color:var(--ink);transition:border-color .13s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue-500);box-shadow:0 0 0 3px var(--blue-50)}
input[readonly]{background:var(--grey-bg);color:var(--ink-2)}
textarea{resize:vertical;min-height:70px}
select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7688' stroke-width='3'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;padding-right:32px}
.fld .help{font-size:11.5px;color:var(--muted);margin-top:5px}
.switch{display:flex;align-items:center;gap:11px;padding:13px 15px;background:var(--blue-50);
  border:1.4px solid var(--blue-100);border-radius:11px;cursor:pointer;margin-bottom:4px}
.switch input{width:auto;margin:0;width:17px;height:17px;accent-color:var(--blue-700);cursor:pointer}
.switch .t b{display:block;font-size:13.5px}
.switch .t span{font-size:12px;color:var(--muted)}
.subsection{border:1px solid var(--line);border-radius:12px;padding:18px;margin-top:14px;background:#fcfdff}

/* stepper */
.stepper{display:flex;align-items:center;gap:0;padding:20px;border-bottom:1px solid var(--line-2);flex-wrap:wrap}
.step{display:flex;align-items:center;gap:10px;flex:1;min-width:150px}
.step .num{width:30px;height:30px;border-radius:50%;background:var(--grey-bg);color:var(--muted);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;flex:0 0 30px}
.step .tx b{display:block;font-size:13px;color:var(--muted)}
.step .tx span{font-size:11px;color:var(--faint)}
.step.active .num{background:var(--blue-700);color:#fff}
.step.active .tx b{color:var(--ink)}
.step.done .num{background:var(--green-bg);color:var(--green)}
.step.done .tx b{color:var(--ink-2)}
.step-line{height:2px;background:var(--line);flex:1;min-width:16px;margin:0 8px}
.wizard-foot{display:flex;gap:10px;padding:18px 20px;border-top:1px solid var(--line-2);background:#fcfdff;
  border-radius:0 0 var(--r-lg) var(--r-lg);flex-wrap:wrap}
.wizard-foot .spacer{flex:1}

/* review summary */
.review{border:1px solid var(--line);border-radius:12px;overflow:hidden}
.review .rrow{display:flex;padding:10px 15px;border-bottom:1px solid var(--line-2);font-size:13.5px;gap:12px}
.review .rrow:last-child{border-bottom:none}
.review .rrow span{color:var(--muted);width:180px;flex:0 0 180px}
.review .rrow b{flex:1}
.review .rrow.big b{font-size:17px;color:var(--blue-700)}

/* ---------------- TABLES ---------------- */
.tbl-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13.8px}
th,td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line-2)}
th{background:#fafbfd;font-size:11px;text-transform:uppercase;letter-spacing:.6px;color:var(--muted);font-weight:700;white-space:nowrap}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover td{background:#fbfcff}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
td.act{text-align:right;white-space:nowrap}
tfoot td{background:#fafbfd;font-weight:700;border-top:2px solid var(--line)}
.rowlink{color:var(--blue-700);font-weight:650;background:none;border:none;padding:0;cursor:pointer;font-size:13.8px}
.rowlink:hover{text-decoration:underline}
.empty{padding:44px 20px;text-align:center;color:var(--muted)}
.empty svg{width:38px;height:38px;stroke:var(--faint);fill:none;stroke-width:1.5;margin-bottom:10px}
.empty b{display:block;color:var(--ink-2);margin-bottom:3px;font-size:14.5px}
.empty span{font-size:13px}

/* chips / badges */
.chip{display:inline-flex;align-items:center;gap:5px;padding:3.5px 11px;border-radius:20px;font-size:12px;font-weight:650;white-space:nowrap}
.chip.Pending{background:var(--amber-bg);color:var(--amber)}
.chip.Approved{background:var(--green-bg);color:var(--green)}
.chip.Declined{background:var(--red-bg);color:var(--red)}
.chip.Hold{background:var(--grey-bg);color:var(--ink-2)}
.chip.blue{background:var(--blue-50);color:var(--blue-700)}
.chip.grey{background:var(--grey-bg);color:var(--ink-2)}
.stat-pill{display:inline-flex;align-items:center;gap:6px;background:var(--blue-50);color:var(--blue-700);
  padding:6px 13px;border-radius:20px;font-size:12.5px;font-weight:650}

/* filter bar */
.filters{display:flex;gap:10px;padding:15px 20px;border-bottom:1px solid var(--line-2);flex-wrap:wrap;align-items:center;background:#fcfdff}
.filters input,.filters select{max-width:200px;padding:8.5px 12px;font-size:13.5px}
.filters .search{max-width:250px}
.filters .spacer{flex:1}

/* project cards */
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.pcard{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--sh);
  transition:all .15s;text-align:left;cursor:pointer}
.pcard:hover{border-color:var(--blue-500);box-shadow:var(--sh-md);transform:translateY(-2px)}
.pcard .top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:14px}
.pcard h3{margin:0;font-size:16px;font-weight:700}
.pcard .loc{font-size:12.3px;color:var(--muted);margin-top:2px}
.pcard .mets{display:flex;gap:20px;padding-top:14px;border-top:1px solid var(--line-2)}
.pcard .met span{display:block;font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}
.pcard .met b{font-size:16px;font-weight:750}

/* toast */
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(8px);opacity:0;
  background:var(--ink);color:#fff;padding:13px 20px;border-radius:11px;z-index:100;
  box-shadow:0 12px 34px rgba(0,0,0,.3);font-size:13.8px;font-weight:500;
  transition:opacity .2s,transform .2s;pointer-events:none;max-width:90vw}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.err{background:var(--red)}
.toast.ok{background:var(--green)}

/* backdrop for mobile sidebar */
.backdrop{position:fixed;inset:0;background:rgba(10,18,32,.45);z-index:19}

/* =====================================================================
   PRINTABLE VOUCHER
   ===================================================================== */
.voucher-print{background:#fff;color:#000;max-width:820px;margin:0 auto;padding:36px 42px;font-size:13.5px;line-height:1.7}
.vp-head{display:flex;align-items:center;gap:22px;border-bottom:3px solid #000;padding-bottom:15px}
.vp-head img.logo{width:140px;height:140px;object-fit:contain;flex:0 0 auto}
.vp-head .co{font-size:25px;font-weight:800;letter-spacing:.8px;line-height:1.15}
.vp-head .sub{font-size:12px;color:#333;margin-top:5px;line-height:1.55}
.vp-qr{width:80px;height:80px;object-fit:contain;flex:0 0 auto}
.vp-title{text-align:center;font-weight:700;font-size:15.5px;letter-spacing:1.5px;
  background:#f0f0f0;padding:8px;margin:14px 0;border:1px solid #ccc}
.vp-meta{display:flex;justify-content:space-between;font-weight:700;margin-bottom:12px}
.vp-sec{margin:16px 0 8px;font-weight:700;font-size:13px;background:#f5f5f5;padding:6px 10px;border-left:4px solid #000;letter-spacing:.3px}
.vp-line{margin:5px 0}
.vp-line b{display:inline-block;min-width:155px}
.vp-grid{display:flex;gap:26px}.vp-grid>div{flex:1}
.vp-box{display:inline-block;border:1.4px solid #000;width:13px;height:13px;vertical-align:middle;
  margin-right:4px;text-align:center;line-height:11px;font-size:11px;font-weight:700}
.vp-tax{width:62%;border-collapse:collapse;margin:10px 0;font-size:13px}
.vp-tax td{border:1px solid #999;padding:5px 11px}
.vp-tax td.r{text-align:right;font-variant-numeric:tabular-nums}
.vp-tax tr.tot td{font-weight:800;background:#f0f0f0;border-top:2px solid #000}
.vp-ack{padding:11px 15px;border:1px solid #bbb;background:#fafafa;margin:4px 0}
.vp-sign{display:flex;gap:26px;margin-top:54px}
.vp-sign div{flex:1;text-align:center}
.vp-sign .line{border-top:1.4px solid #000;margin-bottom:6px}
.vp-sign .role{font-size:12.5px;font-weight:700}
.vp-sign .who{font-size:11px;color:#555;min-height:14px}
.vp-foot{margin-top:28px;font-size:10.5px;color:#555;text-align:center;border-top:1px solid #ccc;padding-top:10px;line-height:1.6}

/* =====================================================================
   OFFICE LETTERHEAD — replicates the official Sixteen Buildcon letterhead
   Header: logo left · "SIXTEEN BUILDCON PVT. LTD." bold serif right
   Footer: black rule · address left · email + phone right
   ===================================================================== */
.letter-print{
  background:#fff;color:#000;width:100%;max-width:820px;margin:0 auto;
  padding:26px 30px 16px;
  font-family:'Times New Roman',Times,serif;font-size:12pt;line-height:1.5;
  display:flex;flex-direction:column;min-height:1020px;
}
/* ---- header ---- */
.lt-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px}
.lt-head img.logo{width:118px;height:auto;object-fit:contain;flex:0 0 auto;margin-bottom:2px}
.lt-head .co{font-family:'Times New Roman',Times,serif;font-size:19pt;font-weight:700;
  letter-spacing:.2px;text-align:right;padding-bottom:6px;white-space:nowrap}
.lt-daterow{display:flex;justify-content:space-between;align-items:baseline;margin-top:14px;
  font-family:Calibri,'Segoe UI',Arial,sans-serif;font-size:11pt}
.lt-daterow .ref{font-size:9.5pt;color:#666}
.lt-main{flex:1}
/* ---- body ---- */
.lt-to{margin-top:20px;line-height:1.45}
.lt-ref{margin-top:14px}
.lt-subject{margin-top:16px;font-weight:700}
.lt-salute{margin-top:16px}
.lt-body{margin-top:14px;text-align:justify}
.lt-body .lt-p{margin:0 0 12px}
.lt-close{margin-top:26px}
.lt-close .l{margin-bottom:2px}
.lt-sigline{border-top:1px solid #000;width:210px;margin-top:44px}
.lt-signame{font-weight:700;margin-top:5px}
.lt-sigtitle{font-size:11pt;color:#3a3a3a}
.lt-cc{margin-top:20px;font-size:11pt}
/* ---- footer strip ---- */
.lt-strip{margin-top:26px;border-top:2.5px solid #000;padding-top:9px;
  display:flex;justify-content:space-between;align-items:flex-start;gap:24px;
  font-family:Calibri,'Segoe UI',Arial,sans-serif;font-size:9.5pt;line-height:1.45}
.lt-strip .col{display:flex;gap:7px;align-items:flex-start;flex:0 0 auto}
.lt-strip .col.right{margin-left:auto;flex-direction:column;align-items:flex-end;gap:5px}
.lt-strip .ln{display:flex;gap:6px;align-items:center;justify-content:flex-end;white-space:nowrap}
.lt-strip svg{width:13px;height:13px;fill:#000;flex:0 0 13px;margin-top:2px}
.lt-strip .addr{text-transform:uppercase;letter-spacing:.1px;white-space:nowrap}
.lt-strip .mail{color:#69919d}

@media print{
  .sidebar,.topbar,.no-print,.toast,.backdrop{display:none!important}
  /* keep the contact strip pinned to the bottom of the printed page */
  .letter-print{padding:0;max-width:none;width:auto;min-height:262mm}
  .lt-strip{page-break-inside:avoid}
  body{background:#fff}
  .main{margin-left:0}
  .content{padding:0;max-width:none}
  .card{border:none;box-shadow:none;margin:0}
  .card-body{padding:0}
  .voucher-print{padding:0;max-width:none}
  @page{size:A4;margin:12mm}
}