/* =====================================================================
   LogiBill — design tokens + components
   Matches the look of the previous mockups (HTML / React / Angular).
   ===================================================================== */
:root{
  --bg:#f1f4f9;
  --surface:#ffffff;
  --surface-2:#f7f9fc;
  --sidebar:#1f2a3a;
  --sidebar-2:#162030;
  --text:#1f2d3d;
  --text-2:#46586d;
  --muted:#8595a8;
  --border:#e3e8ee;
  --input-border:#d6dde6;
  --accent:#14b8a6;
  --accent-2:#0f8f81;
  --success:#10b981;
  --warn:#f59e0b;
  --danger:#ef4444;
  --info:#3b82f6;
  --shadow-sm:0 1px 2px rgba(20,40,80,.05);
  --shadow:0 4px 12px rgba(20,40,80,.06);
  --shadow-lg:0 16px 40px rgba(20,40,80,.14);
  --sidebar-w:200px;
  --sidebar-w-collapsed:58px;
  --topbar-h:60px;
  --t:.22s cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:'Inter','Segoe UI',Tahoma,sans-serif;background:var(--bg);color:var(--text);font-size:14px;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:var(--input-border);border-radius:6px}
::-webkit-scrollbar-thumb:hover{background:var(--muted)}

/* ===== Layout ===== */
.app{display:flex;min-height:100vh}
.sidebar{width:var(--sidebar-w);background:var(--sidebar);color:#cdd6e0;flex-shrink:0;position:sticky;top:0;height:100vh;overflow-y:auto;overflow-x:hidden;transition:width var(--t);z-index:20;border-right:1px solid rgba(255,255,255,.04)}
.app.collapsed .sidebar{width:var(--sidebar-w-collapsed)}
.app.collapsed .nav-text,.app.collapsed .group-label,.app.collapsed .chev{display:none !important}
.app.collapsed .logo-text{display:none}

.logo{padding:0 12px;height:var(--topbar-h);display:flex;align-items:center;gap:9px;border-bottom:1px solid rgba(255,255,255,.06);background:var(--sidebar-2);color:#fff}
.logo .mark{width:30px;height:30px;background:linear-gradient(135deg,var(--accent),#0ea5a4);border-radius:7px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;flex-shrink:0;box-shadow:0 4px 10px rgba(20,184,166,.4)}
.logo-text{font-weight:700;font-size:15px;letter-spacing:.3px;white-space:nowrap}

.group-label{font-size:9px;text-transform:uppercase;letter-spacing:1.4px;color:#6c7c91;padding:12px 14px 4px;font-weight:600}
.nav-head{padding:9px 12px;display:flex;align-items:center;justify-content:space-between;cursor:pointer;font-weight:600;font-size:12.5px;color:#cdd6e0;user-select:none;border:none;background:none;width:100%;text-align:left}
.nav-head:hover{color:#fff;background:rgba(255,255,255,.04)}
.nav-head .left{display:flex;align-items:center;gap:10px}
.nav-head .icon{width:16px;font-size:14px;text-align:center}
.nav-head .chev{font-size:9px;opacity:.6;transition:transform var(--t)}
.nav-section.collapsed .chev{transform:rotate(-90deg)}
.nav-section.collapsed .nav-items{max-height:0}
.nav-items{overflow:hidden;transition:max-height var(--t);max-height:600px;background:rgba(0,0,0,.18)}
.nav-item{padding:7px 12px 7px 38px;display:flex;align-items:center;gap:8px;font-size:12px;cursor:pointer;color:#9aa8bb;position:relative;border-left:3px solid transparent;transition:all .15s}
.nav-item::before{content:"";position:absolute;left:22px;top:50%;width:4px;height:4px;border-radius:50%;background:#536379;transform:translateY(-50%)}
.nav-item:hover{color:#fff;background:rgba(255,255,255,.04)}
.nav-item:hover::before{background:var(--accent)}
.nav-item.active{background:linear-gradient(90deg,rgba(20,184,166,.2),transparent);color:#fff;border-left-color:var(--accent);font-weight:600}
.nav-item.active::before{background:var(--accent)}
.nav-item .pill{margin-left:auto;background:var(--accent);color:#fff;font-size:10px;padding:1px 6px;border-radius:10px;font-weight:700}

.main{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{background:var(--surface);height:var(--topbar-h);padding:0 24px;display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:15;box-shadow:var(--shadow-sm)}
.icon-btn{background:transparent;border:none;color:var(--text-2);cursor:pointer;width:36px;height:36px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;transition:all var(--t);position:relative;font-size:16px}
.icon-btn:hover{background:rgba(20,184,166,.1);color:var(--accent)}
.icon-btn .badge-num{position:absolute;top:2px;right:2px;background:var(--danger);color:#fff;font-size:9px;font-weight:700;min-width:14px;height:14px;padding:0 3px;border-radius:10px;display:flex;align-items:center;justify-content:center;border:2px solid var(--surface)}
.crumbs{font-size:13px;color:var(--muted)}
.crumbs strong{color:var(--text);font-weight:600}
.user-chip{display:flex;align-items:center;gap:8px;padding:5px 10px;border-radius:8px;cursor:pointer}
.user-chip:hover{background:var(--surface-2)}
.avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,#8b5cf6,#ec4899);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px}
.user-info{font-size:12px;line-height:1.3}
.user-info .name{font-weight:600;color:var(--text)}
.user-info .role{color:var(--muted);font-size:11px}

.content{padding:22px 24px;flex:1;overflow:auto;animation:pageIn .25s ease-out}
@keyframes pageIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}

.page-title{font-size:20px;font-weight:700;color:var(--text);margin:0}
.page-sub{font-size:13px;color:var(--muted);margin:4px 0 18px 0}

/* ===== Cards / Forms ===== */
.card{background:var(--surface);border:1px solid var(--border);border-radius:8px;box-shadow:var(--shadow-sm);margin-bottom:18px}
.card-header{padding:14px 18px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:10px}
.card-header h3{margin:0;font-size:14px;font-weight:700}
.card-body{padding:18px}

.grid{display:grid;gap:14px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
@media(max-width:1100px){.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){.grid-4,.grid-3,.grid-2{grid-template-columns:1fr}}

.field label{display:block;font-size:11px;font-weight:700;color:var(--text-2);margin-bottom:6px;letter-spacing:.4px;text-transform:uppercase}
.field input,.field select,.field textarea,.input,.search{width:100%;padding:9px 12px;border:1px solid var(--input-border);border-radius:6px;font-size:13px;background:var(--surface);color:var(--text);outline:none;transition:all var(--t);font-family:inherit}
.field input:focus,.field select:focus,.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(20,184,166,.1)}
.field input[readonly]{background:var(--surface-2);color:var(--muted)}
.req{color:var(--danger);margin-left:2px}
.hint{font-size:11px;color:var(--muted);margin-top:4px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:9px 18px;border:none;border-radius:6px;cursor:pointer;font-weight:600;font-size:13px;transition:all var(--t);font-family:inherit;text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 2px 6px rgba(20,184,166,.4)}
.btn-primary:hover{box-shadow:0 4px 12px rgba(20,184,166,.5);transform:translateY(-1px)}
.btn-outline{background:transparent;color:var(--text);border:1px solid var(--input-border)}
.btn-outline:hover{background:var(--surface-2);border-color:var(--accent)}
.btn-ghost{background:transparent;color:var(--text-2)}
.btn-ghost:hover{background:var(--surface-2);color:var(--text)}
.btn-danger{background:var(--danger);color:#fff}
.btn-success{background:var(--success);color:#fff}
.btn-info{background:var(--info);color:#fff}
.btn-warn{background:var(--warn);color:#fff}
.btn-sm{padding:5px 10px;font-size:11px}

.form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:14px;padding-top:14px;border-top:1px dashed var(--border)}

/* ===== Tables ===== */
.table-wrap{overflow-x:auto}
table.data{width:100%;border-collapse:collapse;font-size:13px}
table.data thead th{background:var(--surface-2);color:var(--text-2);text-align:left;padding:11px 14px;border-bottom:1px solid var(--border);font-weight:700;font-size:11px;text-transform:uppercase;letter-spacing:.6px;white-space:nowrap}
table.data tbody td{padding:11px 14px;border-bottom:1px solid var(--border)}
table.data tbody tr:hover{background:var(--surface-2)}
table.data .total-row{background:var(--surface-2);font-weight:700}
table.data .text-right{text-align:right}

.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 9px;border-radius:14px;font-size:11px;font-weight:600;white-space:nowrap}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.badge-green{background:#dcfce7;color:#15803d}
.badge-amber{background:#fef3c7;color:#a16207}
.badge-red{background:#fee2e2;color:#b91c1c}
.badge-blue{background:#dbeafe;color:#1d4ed8}
.badge-grey{background:#e5e7eb;color:#4b5563}
.badge-purple{background:#ede9fe;color:#6d28d9}

/* ===== KPIs ===== */
.kpi{display:flex;align-items:center;gap:14px;padding:18px;background:var(--surface);border:1px solid var(--border);border-radius:8px;box-shadow:var(--shadow-sm)}
.kpi .ico{width:48px;height:48px;border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:22px;flex-shrink:0}
.kpi .label{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.6px;font-weight:600}
.kpi .value{font-size:22px;font-weight:800;color:var(--text);margin-top:2px}
.kpi .delta{font-size:11px;color:var(--success);font-weight:600;margin-top:2px}
.kpi .delta.down{color:var(--danger)}

/* ===== Login screen ===== */
.login-wrap{position:fixed;inset:0;background:linear-gradient(135deg,#0f172a,#0b6e63);display:flex;align-items:center;justify-content:center;padding:1rem}
.login-card{background:#fff;width:380px;border-radius:14px;padding:32px;box-shadow:0 30px 70px rgba(0,0,0,.4)}
.login-card .mark{width:56px;height:56px;background:linear-gradient(135deg,var(--accent),var(--accent-2));border-radius:14px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:24px;margin:0 auto 16px;box-shadow:0 8px 20px rgba(20,184,166,.5)}
.login-card h2{text-align:center;margin:0}
.login-card p{text-align:center;color:var(--muted);font-size:13px;margin:6px 0 22px 0}

/* ===== Print invoice ===== */
.doc{background:#fff;padding:30px;border:1px solid var(--border);border-radius:8px;font-size:13px;color:#222}
.doc h1{margin:0;font-size:22px;letter-spacing:1px;font-weight:800}
.doc h2{margin:0;font-size:13px;color:#6c7c91;font-weight:500}
.doc .head{display:flex;justify-content:space-between;align-items:flex-start;border-bottom:3px solid var(--accent);padding-bottom:14px;margin-bottom:16px}
.doc .logo-box{width:60px;height:60px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:26px}
.doc .meta{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:16px 0}
.doc .box{border:1px dashed var(--input-border);padding:12px 14px;border-radius:6px;background:#fafbfc}
.doc .box .t{font-size:10px;color:#8595a8;text-transform:uppercase;letter-spacing:.6px;margin-bottom:4px;font-weight:700}
.doc table.inv{width:100%;border-collapse:collapse;margin-top:10px}
.doc table.inv th,.doc table.inv td{border:1px solid #dde2ea;padding:7px 10px;font-size:12px}
.doc table.inv th{background:#f3f5f8;text-align:left;font-weight:700}
.doc .totals{margin-top:14px;display:flex;justify-content:flex-end}
.doc .totals table{border-collapse:collapse;min-width:340px}
.doc .totals td{padding:6px 12px;font-size:13px}
.doc .totals tr.grand td{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;font-weight:800;font-size:15px}
.doc .signs{display:flex;justify-content:space-between;margin-top:60px;font-size:12px;color:#444}
.doc .signs div{text-align:center;width:30%;border-top:1px solid #888;padding-top:6px;font-weight:600}

/* ===== Toasts ===== */
#toasts{position:fixed;top:80px;right:24px;display:flex;flex-direction:column;gap:10px;z-index:80}
.toast{background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--accent);border-radius:8px;padding:12px 16px;box-shadow:var(--shadow-lg);min-width:280px;animation:slideIn .3s ease-out;display:flex;gap:10px}
.toast.success{border-left-color:var(--success)}
.toast.warn{border-left-color:var(--warn)}
.toast.danger{border-left-color:var(--danger)}
.toast .t{font-weight:700;font-size:13px}
.toast .s{color:var(--muted);font-size:12px;margin-top:2px}
@keyframes slideIn{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}

/* ===== Chat panel ===== */
.chat-fab{position:fixed;bottom:24px;right:24px;width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border:none;cursor:pointer;box-shadow:0 8px 20px rgba(20,184,166,.5);z-index:50;font-size:24px;display:flex;align-items:center;justify-content:center;transition:transform var(--t)}
.chat-fab:hover{transform:scale(1.1)}
.chat-fab .ping{position:absolute;top:-3px;right:-3px;width:18px;height:18px;background:var(--danger);border-radius:50%;border:3px solid var(--surface);font-size:9px;font-weight:800;color:#fff;display:flex;align-items:center;justify-content:center}
.chat-panel{position:fixed;bottom:24px;right:24px;width:360px;height:520px;background:var(--surface);border-radius:14px;box-shadow:var(--shadow-lg);z-index:60;display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--border);animation:popIn .25s}
@keyframes popIn{from{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}
.chat-head{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;padding:14px 16px;display:flex;align-items:center;gap:10px}
.chat-head .av{width:38px;height:38px;background:rgba(255,255,255,.2);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;position:relative}
.chat-head .av::after{content:"";position:absolute;bottom:0;right:0;width:10px;height:10px;background:#22c55e;border-radius:50%;border:2px solid var(--accent)}
.chat-head .info{flex:1;line-height:1.2}
.chat-head .info .name{font-weight:700;font-size:14px}
.chat-head .info .status{font-size:11px;opacity:.85}
.chat-head .close{background:none;border:none;color:#fff;cursor:pointer;font-size:18px}
.chat-body{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px;background:var(--surface-2)}
.msg{display:flex;gap:8px;max-width:80%}
.msg.me{align-self:flex-end;flex-direction:row-reverse}
.msg .b{padding:8px 12px;border-radius:14px;font-size:13px;background:var(--surface);box-shadow:var(--shadow-sm)}
.msg.me .b{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff}
.msg .av{width:28px;height:28px;border-radius:50%;background:#8b5cf6;color:#fff;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;flex-shrink:0}
.msg.me .av{background:linear-gradient(135deg,#ec4899,#f43f5e)}
.msg .t{font-size:10px;color:var(--muted);margin-top:3px}
.chat-foot{padding:10px;border-top:1px solid var(--border);display:flex;gap:8px}
.chat-foot input{flex:1;border:1px solid var(--input-border);border-radius:20px;padding:8px 14px;font-size:13px;outline:none}
.chat-foot input:focus{border-color:var(--accent)}
.chat-foot button{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border:none;width:34px;height:34px;border-radius:50%;cursor:pointer}

.row-flex{display:flex;gap:8px;align-items:center}
.text-muted{color:var(--muted)}
.text-success{color:var(--success)}
.text-danger{color:var(--danger)}
.text-warn{color:var(--warn)}
.mb-0{margin-bottom:0}.mb-2{margin-bottom:8px}.mb-3{margin-bottom:12px}.mt-3{margin-top:12px}
.fw-bold{font-weight:700}