:root{
  --blue:#4281b0;
  --blue-soft:#8ab0ca;
  --bg:#f4f4f4;
  --black:#000000;
  --ink:#232321;
  --white:#ffffff;
  --line:#e3e5e8;
  --muted:#6b7076;
  --ok:#2e9e6b;
  --warn:#d38b1a;
  --danger:#c0392b;
  --radius:14px;
  --shadow:0 2px 12px rgba(35,35,33,.06);
  --shadow-lg:0 18px 50px rgba(35,35,33,.18);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  background:var(--bg);color:var(--ink);font-size:14px;line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
.hidden{display:none !important}
.muted{color:var(--muted);font-size:13px;margin:2px 0 0}
.grow{flex:1}
.num{text-align:right}

/* ---------- Buttons ---------- */
.btn{
  border:1px solid transparent;border-radius:10px;padding:10px 16px;font:inherit;font-weight:600;
  cursor:pointer;transition:.15s;display:inline-flex;align-items:center;gap:6px;justify-content:center;
}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:#356a92}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--blue-soft);color:var(--blue)}
.btn-danger-ghost{background:transparent;color:var(--danger);border-color:transparent}
.btn-danger-ghost:hover{background:#fbeeec}
.btn-sm{padding:7px 12px;font-size:13px;border-radius:8px}
.btn-block{width:100%}

/* ---------- Login ---------- */
.login-screen{
  min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;
  background:linear-gradient(135deg,#232321,#4281b0);
}
.login-card{
  background:#fff;border-radius:20px;padding:40px 36px;width:100%;max-width:400px;
  box-shadow:var(--shadow-lg);text-align:center;
}
.login-logo{width:88px;height:auto;margin-bottom:14px;object-fit:contain}
.login-card h1{margin:0;font-size:24px;font-weight:800;letter-spacing:-.02em}
.login-sub{color:var(--muted);margin:6px 0 24px}
.login-card form{text-align:left}
.login-card label{display:block;font-weight:600;font-size:13px;margin:12px 0 6px}
.login-card input{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font:inherit;
}
.login-card input:focus{outline:none;border-color:var(--blue)}
.login-card .btn{margin-top:22px}
.login-note{color:var(--muted);font-size:12px;margin-top:18px;text-align:center}
.form-error{color:var(--danger);font-size:13px;min-height:18px;margin:10px 0 0}

/* ---------- App shell ---------- */
.app{display:flex;min-height:100vh}
.sidebar{
  width:240px;flex-shrink:0;background:var(--ink);color:#d6d8da;display:flex;flex-direction:column;
  position:sticky;top:0;height:100vh;
}
.sidebar-brand{display:flex;align-items:center;gap:10px;padding:20px 18px;font-weight:800;color:#fff;border-bottom:1px solid rgba(255,255,255,.08)}
.sidebar-brand img{width:34px;height:34px;object-fit:contain;background:#fff;border-radius:8px;padding:3px}
.side-nav{display:flex;flex-direction:column;padding:12px 10px;gap:2px;flex:1}
.side-nav a{
  display:flex;align-items:center;gap:11px;color:#c4c7cb;text-decoration:none;padding:11px 13px;border-radius:9px;
  font-weight:600;font-size:14px;transition:.13s;
}
.side-nav a .ni{width:18px;text-align:center;opacity:.8}
.side-nav a:hover{background:rgba(255,255,255,.06);color:#fff}
.side-nav a.active{background:var(--blue);color:#fff}
.sidebar-footer{padding:14px;border-top:1px solid rgba(255,255,255,.08)}
.user-chip{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.avatar{width:38px;height:38px;border-radius:50%;background:var(--blue-soft);color:var(--ink);display:flex;align-items:center;justify-content:center;font-weight:700}
.user-name{color:#fff;font-weight:600;font-size:14px}
.user-role{font-size:12px;color:#9aa0a6;text-transform:capitalize}

.content{flex:1;padding:26px 32px 60px;max-width:100%;overflow-x:auto}
.loading-bar{height:3px;background:linear-gradient(90deg,var(--blue),var(--blue-soft));animation:load 1s infinite;margin-bottom:14px;border-radius:2px}
@keyframes load{0%{opacity:.4}50%{opacity:1}100%{opacity:.4}}

.view-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px;flex-wrap:wrap}
.view-head h2{margin:0;font-size:26px;font-weight:800;letter-spacing:-.02em}

/* ---------- Stats ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin-bottom:22px}
.stat-card{background:#fff;border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);border:1px solid var(--line)}
.stat-card .label{color:var(--muted);font-size:13px;font-weight:600}
.stat-card .value{font-size:28px;font-weight:800;margin-top:6px;letter-spacing:-.02em}
.stat-card .sub{font-size:12px;color:var(--muted);margin-top:4px}
.stat-card.accent{background:var(--blue);color:#fff}
.stat-card.accent .label,.stat-card.accent .sub{color:rgba(255,255,255,.85)}

.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:900px){.two-col{grid-template-columns:1fr}}

/* ---------- Panels ---------- */
.panel{background:#fff;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow);margin-bottom:18px;overflow:hidden}
.panel-head{padding:16px 18px;border-bottom:1px solid var(--line)}
.panel-head h3{margin:0;font-size:16px;font-weight:700}

.mini-list{padding:8px 0}
.mini-row{display:flex;align-items:center;justify-content:space-between;padding:11px 18px;border-bottom:1px solid var(--line);gap:10px}
.mini-row:last-child{border-bottom:none}
.mini-row .m-name{font-weight:600}
.mini-row .m-meta{font-size:12px;color:var(--muted)}
.mini-row .m-amt{font-weight:700;color:var(--blue)}

.bar-chart{padding:16px 18px}
.bar-row{margin-bottom:12px}
.bar-row .bl{display:flex;justify-content:space-between;font-size:13px;margin-bottom:5px;font-weight:600}
.bar-track{height:9px;background:var(--bg);border-radius:6px;overflow:hidden}
.bar-fill{height:100%;background:var(--blue);border-radius:6px}

/* ---------- Toolbar ---------- */
.toolbar{display:flex;gap:10px;margin-bottom:14px;align-items:center}
.toolbar.wrap{flex-wrap:wrap}
.search{padding:10px 14px;border:1px solid var(--line);border-radius:10px;font:inherit;min-width:240px;flex:1;max-width:340px;background:#fff}
.select{padding:9px 12px;border:1px solid var(--line);border-radius:10px;font:inherit;background:#fff}
.search:focus,.select:focus{outline:none;border-color:var(--blue)}

/* ---------- Tables ---------- */
.table-wrap{background:#fff;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow);overflow:auto}
.data-table{width:100%;border-collapse:collapse;font-size:13.5px;min-width:640px}
.data-table th{text-align:left;padding:13px 14px;font-size:12px;text-transform:uppercase;letter-spacing:.03em;color:var(--muted);border-bottom:1px solid var(--line);white-space:nowrap;background:#fafbfc}
.data-table td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:middle}
.data-table tbody tr:last-child td{border-bottom:none}
.data-table tbody tr.clickable{cursor:pointer}
.data-table tbody tr.clickable:hover{background:#f6f9fb}
.data-table.compact th,.data-table.compact td{padding:8px 8px;font-size:13px}
.data-table tfoot td{padding:12px 14px;font-weight:700;border-top:2px solid var(--line);background:#fafbfc}
.tf-label{text-transform:uppercase;font-size:12px;letter-spacing:.03em;color:var(--muted)}
.empty{padding:40px;text-align:center;color:var(--muted)}

/* ---------- Badges ---------- */
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:600;white-space:nowrap}
.badge.st-Estimate{background:#eef1f4;color:#5a6069}
.badge.st-Pending.Invoicing,.badge.st-pending{background:#fdf1dd;color:var(--warn)}
.badge.st-Invoiced{background:#e5eff6;color:var(--blue)}
.badge.st-Paid{background:#e3f5ec;color:var(--ok)}
.pill{background:#eef1f4;color:#5a6069;padding:2px 9px;border-radius:20px;font-size:12px;font-weight:600}

/* ---------- Reports ---------- */
.report-controls{display:flex;gap:12px;align-items:flex-end;padding:16px 18px;flex-wrap:wrap}
.report-controls.wrap{flex-wrap:wrap}
.report-controls label{display:flex;flex-direction:column;font-size:12px;font-weight:600;color:var(--muted);gap:5px}
.report-result{padding:0 18px 18px}
.report-summary{display:flex;gap:24px;flex-wrap:wrap;padding:14px 0;border-bottom:1px solid var(--line);margin-bottom:12px}
.report-summary .rs{font-size:13px;color:var(--muted)}
.report-summary .rs b{display:block;font-size:20px;color:var(--ink);font-weight:800}

/* ---------- Modal ---------- */
.modal{position:fixed;inset:0;background:rgba(35,35,33,.55);display:flex;align-items:flex-start;justify-content:center;padding:32px 16px;z-index:100;overflow-y:auto}
.modal-box{background:#fff;border-radius:18px;width:100%;max-width:520px;box-shadow:var(--shadow-lg);margin:auto}
.modal-box.wide{max-width:1000px}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--line)}
.modal-head h3{margin:0;font-size:19px;font-weight:800}
.modal-close{background:none;border:none;font-size:26px;line-height:1;cursor:pointer;color:var(--muted)}
.modal-body{padding:22px 24px;max-height:70vh;overflow-y:auto}
.modal-foot{display:flex;align-items:center;gap:10px;padding:16px 24px;border-top:1px solid var(--line)}

.field-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px 16px;margin-bottom:8px}
@media(max-width:760px){.field-grid{grid-template-columns:1fr 1fr}}
.field-grid label,.stack{display:flex;flex-direction:column;font-size:12px;font-weight:600;color:var(--muted);gap:6px}
.field-grid input,.field-grid select,.stack input,.stack select,.stack textarea{
  padding:9px 11px;border:1px solid var(--line);border-radius:9px;font:inherit;color:var(--ink);background:#fff;
}
.stack{margin-bottom:14px}
.field-grid input:focus,.field-grid select:focus,.stack input:focus,.stack select:focus,.stack textarea:focus{outline:none;border-color:var(--blue)}

.sub-head{display:flex;align-items:center;justify-content:space-between;margin:22px 0 10px}
.sub-head h4{margin:0;font-size:15px;font-weight:700}
#linesBody input,#linesBody select{width:100%;padding:6px 7px;border:1px solid var(--line);border-radius:7px;font:inherit;font-size:13px;background:#fff}
#linesBody input:focus,#linesBody select:focus{outline:none;border-color:var(--blue)}
.line-del{background:none;border:none;color:var(--danger);cursor:pointer;font-size:18px;padding:0 4px}
.cell-w-narrow{width:90px}

.notice{background:#e5eff6;border:1px solid var(--blue-soft);color:#2c5d80;padding:12px 16px;border-radius:10px;margin-bottom:16px;font-size:13.5px}
.hint{color:var(--muted);font-size:12.5px;margin:8px 0 0}

/* ---------- Toast ---------- */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;padding:12px 22px;border-radius:10px;box-shadow:var(--shadow-lg);z-index:200;font-weight:600;font-size:14px}
.toast.err{background:var(--danger)}

@media(max-width:820px){
  .app{flex-direction:column}
  .sidebar{width:100%;height:auto;position:static;flex-direction:row;flex-wrap:wrap;align-items:center}
  .side-nav{flex-direction:row;flex-wrap:wrap;flex:1;padding:8px}
  .sidebar-footer{border-top:none;border-left:1px solid rgba(255,255,255,.08)}
  .content{padding:18px 14px 50px}
  .field-grid{grid-template-columns:1fr}
}