/* EcoTech Billing — mobile-first stylesheet (no build step) */
:root{
  --green:#1f8a4c; --green-d:#166b3a; --ink:#1c2321; --muted:#667; --line:#e2e6e4;
  --bg:#f5f7f6; --card:#fff; --warn:#b9541b; --danger:#c0392b; --ok:#1f8a4c;
  --shadow:0 1px 3px rgba(0,0,0,.08);
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg);font-size:15px;line-height:1.45}
a{color:var(--green-d);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{margin:.2em 0 .5em}
.page-title{font-size:1.35rem;margin-top:.2em}

/* Topbar */
.topbar{position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:.6rem;height:52px;box-sizing:border-box;
  background:var(--green);color:#fff;padding:.6rem .8rem;box-shadow:var(--shadow)}
.brand{color:#fff;font-weight:700;font-size:1.05rem}
.brand span{opacity:.8;font-weight:400}
.topbar-user{margin-left:auto;display:flex;align-items:center;gap:.6rem;font-size:.85rem}
.topbar-user .who{opacity:.95}
.topbar-user .role{opacity:.75;text-transform:capitalize}
.nav-toggle{background:transparent;border:0;color:#fff;font-size:1.3rem;cursor:pointer;display:none}

/* Layout shell: left sidebar + content */
.shell{display:flex;align-items:flex-start;max-width:1200px;margin:0 auto}

/* Side nav (left column on desktop) */
.sidenav{flex:0 0 200px;background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:.15rem;padding:.6rem;
  position:sticky;top:52px;height:calc(100vh - 52px);overflow-y:auto}
.sidenav a{padding:.55rem .8rem;border-radius:8px;color:var(--ink);font-weight:500}
.sidenav a.active{background:var(--green);color:#fff}
.sidenav a:hover{background:#eef3f0;text-decoration:none}
.sidenav a.active:hover{background:var(--green-d);color:#fff}

.content{flex:1 1 auto;min-width:0;max-width:1000px;padding:1rem}
.foot{max-width:1200px;margin:2rem auto 3rem;padding:0 1rem;color:var(--muted);font-size:.8rem}

/* Cards & tables */
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:1rem;box-shadow:var(--shadow);margin-bottom:1rem}
.grid{display:grid;gap:1rem}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
.stat{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:.9rem 1rem;box-shadow:var(--shadow)}
.stat .n{font-size:1.6rem;font-weight:700}
.stat .l{color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.03em}

.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;background:#fff}
th,td{text-align:left;padding:.55rem .6rem;border-bottom:1px solid var(--line);white-space:nowrap}
th{font-size:.72rem;text-transform:uppercase;letter-spacing:.03em;color:var(--muted);background:#fafbfa}
tbody tr:hover{background:#f8faf9}

/* Badges */
.badge{display:inline-block;padding:.15rem .5rem;border-radius:999px;font-size:.72rem;font-weight:600;text-transform:capitalize}
.badge-active{background:#e3f4ea;color:var(--green-d)}
.badge-suspended{background:#fdf0d9;color:#8a5a13}
.badge-disconnected{background:#fdE3e0;color:var(--danger)}
.badge-for_installation{background:#e6eefb;color:#2456b6}
.badge-cancelled{background:#eceeed;color:#555}
.badge-inactive{background:#eceeed;color:#555}

/* Forms */
label{display:block;font-weight:600;font-size:.85rem;margin:.7rem 0 .2rem}
input[type=text],input[type=number],input[type=email],input[type=date],input[type=time],
input[type=password],input[type=search],select,textarea{
  width:100%;padding:.55rem .6rem;border:1px solid var(--line);border-radius:8px;font-size:15px;background:#fff}
textarea{min-height:80px;resize:vertical}
.help{color:var(--muted);font-size:.78rem;margin-top:.15rem}
fieldset{border:1px solid var(--line);border-radius:10px;padding:1rem;margin:0 0 1rem}
legend{font-weight:700;padding:0 .4rem}
.form-row{display:grid;gap:.8rem}
@media(min-width:640px){.form-row.two{grid-template-columns:1fr 1fr}.form-row.three{grid-template-columns:1fr 1fr 1fr}}

/* Buttons */
.btn{display:inline-block;padding:.55rem .9rem;border-radius:8px;border:1px solid transparent;
  background:var(--green);color:#fff;font-weight:600;cursor:pointer;font-size:.9rem}
.btn:hover{background:var(--green-d);text-decoration:none}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-secondary{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-secondary:hover{background:#f2f4f3}
.btn-danger{background:var(--danger)}
.btn-sm{padding:.3rem .6rem;font-size:.8rem}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-row{display:flex;gap:.6rem;flex-wrap:wrap;margin-top:1rem}

/* Flash */
.flash{padding:.7rem .9rem;border-radius:8px;margin-bottom:1rem;font-weight:500}
.flash-success{background:#e3f4ea;color:var(--green-d);border:1px solid #bfe3cd}
.flash-error{background:#fdE3e0;color:var(--danger);border:1px solid #f3c4bf}
.flash-info{background:#e6eefb;color:#2456b6;border:1px solid #c6d8f6}

/* Dry-run banner */
.banner-dryrun{background:#fdf0d9;border:1px solid #eccb8a;color:#8a5a13;padding:.7rem 1rem;
  border-radius:8px;margin-bottom:1rem;font-weight:600}

/* Tabs */
.tabs{display:flex;gap:.3rem;flex-wrap:wrap;border-bottom:1px solid var(--line);margin-bottom:1rem}
.tabs a{padding:.5rem .8rem;border-radius:8px 8px 0 0;color:var(--muted);font-weight:600}
.tabs a.active{color:var(--ink);background:#fff;border:1px solid var(--line);border-bottom-color:#fff;margin-bottom:-1px}

/* Toolbar */
.toolbar{display:flex;gap:.6rem;flex-wrap:wrap;align-items:end;margin-bottom:1rem}
.toolbar .grow{flex:1;min-width:180px}

/* Definition list */
.dl{display:grid;grid-template-columns:max-content 1fr;gap:.35rem .9rem;font-size:.92rem}
.dl dt{color:var(--muted)}
.dl dd{margin:0}

.muted{color:var(--muted)}
.right{text-align:right}
.nowrap{white-space:nowrap}
.thumb{max-width:120px;border-radius:8px;border:1px solid var(--line)}

/* Mobile */
@media(max-width:760px){
  .nav-toggle{display:block}
  .sidenav{position:fixed;top:52px;left:0;bottom:0;width:220px;z-index:30;height:auto;
    transform:translateX(-100%);transition:transform .2s ease}
  body.nav-open .sidenav{transform:none;box-shadow:2px 0 16px rgba(0,0,0,.18)}
  .content{max-width:none;width:100%}
  .grid.cols-2,.grid.cols-3,.grid.cols-4{grid-template-columns:1fr 1fr}
  .topbar-user .who{display:none}
}
@media(max-width:440px){
  .grid.cols-2,.grid.cols-3,.grid.cols-4{grid-template-columns:1fr}
}

/* Invoice document */
.invoice-doc{max-width:720px}
.inv-head{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;border-bottom:2px solid var(--green);padding-bottom:.8rem;margin-bottom:1rem}
.inv-company{font-size:1.2rem;font-weight:700;color:var(--green-d)}
.inv-title{font-size:1.4rem;font-weight:700;letter-spacing:.06em;color:var(--muted)}
.inv-parties{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;margin-bottom:1rem}
.inv-label{color:var(--muted);font-size:.82rem}
.inv-table{margin-top:.5rem}
.inv-table th,.inv-table td{border-bottom:1px solid var(--line)}
.inv-table tfoot th,.inv-table tfoot td{border-bottom:0}
.inv-foot{margin-top:1.5rem;font-size:.8rem;border-top:1px dashed var(--line);padding-top:.6rem}

/* Due-dates board */
.board-section{margin-bottom:1.2rem}
.board-section h2{font-size:1.05rem;margin-bottom:.4rem}
.overdue-row{background:#fdE3e0}

/* Print */
@media print{
  .topbar,.sidenav,.foot,.no-print,.btn-row{display:none !important}
  body{background:#fff}
  .content{max-width:none;padding:0}
  .page-title{display:none}
  .card,.invoice-doc{border:0;box-shadow:none;padding:0;margin:0}
  a{color:#000;text-decoration:none}
}