/* TechSavy ERP — thème sombre + orange */
:root{
  --bg:#0A0F1C; --surf:#0F172A; --surf2:#111c30; --bd:#1E293B; --bd2:#334155;
  --txt:#F1F5F9; --mut:#94A3B8; --sub:#64748B; --or:#E8531A; --or2:#FF9A6B;
  --ok:#10B981; --warn:#F59E0B; --bad:#EF4444;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--txt);font-family:Inter,-apple-system,Segoe UI,Roboto,system-ui,sans-serif;-webkit-font-smoothing:antialiased;font-size:14px}
a{color:inherit;text-decoration:none}
.app{display:flex;min-height:100vh}

/* Sidebar */
.sidebar{width:222px;flex-shrink:0;background:#080d18;border-right:1px solid var(--bd);display:flex;flex-direction:column;padding:16px 12px}
.brand{display:flex;align-items:center;gap:10px;padding:4px 8px 16px;border-bottom:1px solid var(--bd);margin-bottom:12px}
.brand .logo{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,#E8531A,#C73D0A);display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff}
.brand b{font-weight:800;letter-spacing:-.02em}
.brand small{display:block;color:var(--or2);font-size:10px;font-weight:700;letter-spacing:.18em}
.sidebar nav{display:flex;flex-direction:column;gap:2px;flex:1;overflow-y:auto}
.nav-item{font-size:13.5px;padding:8px 11px}
.nav-item{display:flex;align-items:center;gap:10px;padding:9px 11px;border-radius:8px;color:var(--mut);font-weight:500}
.nav-item .ico{width:18px;text-align:center}
.nav-item:hover{background:var(--surf);color:var(--txt)}
.nav-item.active{background:linear-gradient(180deg,#E8531A,#C73D0A);color:#fff;font-weight:600}
.side-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;padding-top:12px;border-top:1px solid var(--bd)}
.plan-badge{font-size:10px;font-weight:800;color:var(--or2);border:1px solid rgba(232,83,26,.4);border-radius:6px;padding:3px 8px}
.logout{color:var(--mut);font-size:13px}
.logout:hover{color:var(--bad)}

/* Main */
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{height:58px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;border-bottom:1px solid var(--bd);background:rgba(10,15,28,.7)}
.pg-title{font-weight:700;font-size:16px}
.top-actions{display:flex;align-items:center;gap:16px}
.lang{display:flex;border:1px solid var(--bd2);border-radius:8px;overflow:hidden}
.lang a{padding:5px 9px;font-size:12px;font-weight:600;color:var(--mut)}
.lang a.on{background:var(--or);color:#fff}
.who{text-align:right;line-height:1.2}
.who small{display:block;color:var(--sub);font-size:11px}
.content{padding:24px;max-width:1180px;width:100%}

/* Flash */
.flash{padding:10px 14px;border-radius:8px;margin-bottom:16px;font-weight:600}
.flash.ok{background:rgba(16,185,129,.12);color:var(--ok);border:1px solid rgba(16,185,129,.3)}
.flash.err{background:rgba(239,68,68,.12);color:#FCA5A5;border:1px solid rgba(239,68,68,.3)}

/* KPI cards */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:22px}
.kpi{background:var(--surf);border:1px solid var(--bd);border-radius:12px;padding:16px}
.kpi .lab{color:var(--mut);font-size:12px}
.kpi .val{font-weight:800;font-size:22px;margin-top:6px}
.kpi .sub{font-size:11px;margin-top:4px;color:var(--sub)}

/* Cards / tables */
.card{background:var(--surf);border:1px solid var(--bd);border-radius:12px;padding:18px;margin-bottom:18px}
.card h2{margin:0 0 14px;font-size:15px}
.bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;gap:12px;flex-wrap:wrap}
.bar h1{font-size:20px;margin:0}
table{width:100%;border-collapse:collapse}
th{text-align:left;padding:9px 12px;color:var(--mut);font-size:12px;font-weight:600;border-bottom:1px solid var(--bd)}
td{padding:10px 12px;border-bottom:1px solid var(--bd);font-size:13px}
tr:last-child td{border-bottom:none}
.r{text-align:right}
.mono{font-family:'JetBrains Mono',ui-monospace,monospace}
.muted{color:var(--mut)}

/* Pills */
.pill{font-size:11px;padding:2px 9px;border-radius:99px;font-weight:600;display:inline-block}
.p-paid,.p-accepted{background:rgba(16,185,129,.15);color:var(--ok)}
.p-pending,.p-sent{background:rgba(245,158,11,.15);color:var(--warn)}
.p-draft{background:rgba(148,163,184,.15);color:var(--mut)}
.p-low{background:rgba(239,68,68,.15);color:#FCA5A5}

/* Buttons */
.btn{display:inline-block;background:linear-gradient(180deg,#E8531A,#C73D0A);color:#fff;border:none;border-radius:8px;padding:9px 16px;font-weight:700;cursor:pointer;font-size:13px;font-family:inherit}
.btn:hover{filter:brightness(1.08)}
.btn-ghost{display:inline-block;background:#161F33;border:1px solid var(--bd2);color:#CBD5E1;border-radius:8px;padding:8px 14px;cursor:pointer;font-weight:600;font-size:13px;font-family:inherit}
.btn-sm{padding:5px 10px;font-size:12px}
.btn-danger{background:transparent;border:1px solid rgba(239,68,68,.4);color:#FCA5A5}

/* Forms */
.form{display:grid;gap:14px;max-width:560px}
.form.grid2{grid-template-columns:1fr 1fr}
.field{display:flex;flex-direction:column;gap:5px}
.field.full{grid-column:1/-1}
label{font-size:12px;color:var(--mut);font-weight:600}
input,select,textarea{background:var(--bg);border:1px solid var(--bd2);border-radius:8px;padding:9px 11px;color:var(--txt);font-size:14px;font-family:inherit;width:100%}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--or)}
textarea{min-height:80px;resize:vertical}
.actions{display:flex;gap:10px;margin-top:6px;grid-column:1/-1}

/* Login */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;width:100%}
.login-card{background:var(--surf);border:1px solid var(--bd);border-radius:14px;padding:30px;width:360px}
.login-card .brand{justify-content:center;border:none}

/* Invoice items editor */
.items th,.items td{padding:7px 8px}
.items input{padding:7px 8px}
.tot-box{margin-left:auto;max-width:300px;margin-top:14px}
.tot-box .row{display:flex;justify-content:space-between;padding:5px 0}
.tot-box .grand{border-top:1px solid var(--bd);margin-top:6px;padding-top:10px;font-weight:800;font-size:17px;color:var(--or2)}

/* Print */
@media print{.sidebar,.topbar,.no-print{display:none!important}.content{padding:0}.app{display:block}}

@media(max-width:820px){.kpis{grid-template-columns:1fr 1fr}.sidebar{width:64px}.brand div,.nav-item span+*,.side-foot .logout,.who{display:none}.form.grid2{grid-template-columns:1fr}}