:root{
  --bg:#f4f6fa; --panel:#ffffff; --ink:#1a2535; --muted:#6b7a90;
  --line:#e4e9f1; --brand:#1d6ef5; --brand-d:#1557c7;
  --nav:#0f1b2d; --nav-ink:#c9d6ea; --nav-active:#1d6ef5;
  --ok:#17935a; --ok-bg:#e6f6ee; --warn:#b8860b; --warn-bg:#fdf6e3;
  --err:#d33b3b; --err-bg:#fdeaea; --info:#1d6ef5; --info-bg:#eaf1fe;
  --radius:14px; --shadow:0 1px 3px rgba(16,32,60,.08),0 6px 20px rgba(16,32,60,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink);font-size:15px;line-height:1.5;
  -webkit-text-size-adjust:100%;
}
a{color:var(--brand);text-decoration:none}

/* Topbar */
.topbar{
  position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:12px;
  background:var(--nav);color:#fff;padding:0 16px;height:56px;
  box-shadow:0 2px 10px rgba(0,0,0,.18);
}
.topbar .brand{color:#fff;font-weight:700;font-size:17px;display:flex;align-items:center;gap:9px}
.topbar .logo{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:9px;
  background:linear-gradient(135deg,#2f84ff,#1557c7);font-weight:800}
.menu-btn{display:none;background:none;border:none;color:#fff;font-size:22px;cursor:pointer;padding:4px 6px}
.top-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.user-chip{color:#c9d6ea;font-size:13px;text-align:right;line-height:1.1}
.user-chip small{display:block;color:#7f93b1;font-size:11px}
.logout{color:#c9d6ea;font-size:20px}
.logout:hover{color:#fff}

/* Shell */
.shell{display:flex;min-height:calc(100vh - 56px)}
.sidebar{
  width:220px;flex:none;background:var(--nav);padding:14px 10px;display:flex;flex-direction:column;gap:3px;
}
.sidebar a{
  display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:10px;
  color:var(--nav-ink);font-weight:600;font-size:14px;
}
.sidebar a:hover{background:rgba(255,255,255,.07);color:#fff}
.sidebar a.active{background:var(--nav-active);color:#fff;box-shadow:0 4px 12px rgba(29,110,245,.4)}
.sidebar .ni{font-size:17px;width:22px;text-align:center}
.nav-backdrop{display:none}
.content{flex:1;padding:22px;max-width:1200px;margin:0 auto;width:100%}

/* Page head */
.page-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:0 0 18px}
.page-head h1{font-size:22px;margin:0;font-weight:800;letter-spacing:-.02em}
.page-head .sub{color:var(--muted);font-size:14px}
.spacer{flex:1}

/* Cards / panels */
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.panel.pad{padding:18px}
.grid{display:grid;gap:14px}
.cards{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(210px,1fr))}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow)}
.stat .k{color:var(--muted);font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.04em}
.stat .v{font-size:30px;font-weight:800;margin-top:4px;letter-spacing:-.02em}
.stat .v small{font-size:14px;color:var(--muted);font-weight:600}
.stat.accent{background:linear-gradient(135deg,#1d6ef5,#1557c7);color:#fff;border:none}
.stat.accent .k,.stat.accent .v small{color:#cfe0ff}

/* Tabs / sklad switch */
.segment{display:inline-flex;background:#e9eef6;border-radius:11px;padding:4px;gap:4px}
.segment a{padding:8px 16px;border-radius:8px;color:var(--muted);font-weight:700;font-size:14px}
.segment a.active{background:#fff;color:var(--ink);box-shadow:var(--shadow)}

/* Table */
.tbl-wrap{overflow-x:auto;border-radius:var(--radius)}
table.tbl{width:100%;border-collapse:collapse;background:var(--panel);font-size:14px;min-width:560px}
table.tbl th,table.tbl td{padding:11px 13px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
table.tbl th{background:#f7f9fc;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.04em;font-weight:700;position:sticky;top:0}
table.tbl tbody tr:hover{background:#f7faff}
table.tbl td.num,table.tbl th.num{text-align:right;font-variant-numeric:tabular-nums}

/* Badges */
.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700;line-height:1.6}
.badge.ok{background:var(--ok-bg);color:var(--ok)}
.badge.sold{background:var(--info-bg);color:var(--info)}
.badge.cross{background:var(--warn-bg);color:var(--warn)}
.badge.sk{background:#eaf1fe;color:#1557c7}
.badge.cz{background:#fdeaea;color:#c53030}

/* Forms */
.form{display:grid;gap:15px;max-width:620px}
.form.wide{max-width:none}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-weight:700;font-size:13px;color:var(--ink)}
.field .hint{color:var(--muted);font-size:12px}
input,select,textarea{
  font:inherit;color:var(--ink);background:#fff;border:1.5px solid var(--line);
  border-radius:10px;padding:11px 13px;width:100%;transition:border-color .12s,box-shadow .12s;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(29,110,245,.15)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;justify-content:center;
  background:var(--brand);color:#fff;border:none;border-radius:10px;padding:11px 18px;
  font-weight:700;font-size:14px;cursor:pointer;transition:background .12s,transform .05s}
.btn:hover{background:var(--brand-d)}
.btn:active{transform:translateY(1px)}
.btn.ghost{background:#eef2f8;color:var(--ink)}
.btn.ghost:hover{background:#e2e8f2}
.btn.ok{background:var(--ok)}
.btn.danger{background:var(--err)}
.btn.sm{padding:7px 12px;font-size:13px}
.btn-row{display:flex;gap:10px;flex-wrap:wrap}

/* Flash */
.flash{padding:12px 16px;border-radius:11px;margin-bottom:14px;font-weight:600;font-size:14px}
.flash-ok{background:var(--ok-bg);color:var(--ok)}
.flash-err{background:var(--err-bg);color:var(--err)}
.flash-info{background:var(--info-bg);color:var(--info)}
.flash-warn{background:var(--warn-bg);color:var(--warn)}

.empty{text-align:center;color:var(--muted);padding:40px 20px}
.empty .big{font-size:40px;opacity:.5}

/* Login */
.login-wrap{min-height:100vh;display:grid;place-items:center;background:
  radial-gradient(1200px 600px at 70% -10%,#1d6ef5 0,transparent 55%),var(--nav);padding:20px}
.login-card{background:#fff;border-radius:20px;padding:34px 30px;width:100%;max-width:380px;
  box-shadow:0 20px 60px rgba(0,0,0,.35)}
.login-card .logo-big{width:56px;height:56px;border-radius:15px;display:grid;place-items:center;
  background:linear-gradient(135deg,#2f84ff,#1557c7);color:#fff;font-weight:800;font-size:26px;margin:0 auto 14px}
.login-card h1{text-align:center;font-size:20px;margin:0 0 4px}
.login-card p.s{text-align:center;color:var(--muted);margin:0 0 22px;font-size:14px}

/* Chart bars */
.bars{display:flex;align-items:flex-end;gap:8px;height:180px;padding-top:10px}
.bars .bar{flex:1;background:linear-gradient(180deg,#2f84ff,#1557c7);border-radius:6px 6px 0 0;
  min-height:3px;position:relative}
.bars .bar span{position:absolute;top:-18px;left:0;right:0;text-align:center;font-size:11px;color:var(--muted);font-weight:700}
.bars .bar em{position:absolute;bottom:-20px;left:0;right:0;text-align:center;font-size:11px;color:var(--muted);font-style:normal}

/* Mobile */
@media(max-width:860px){
  .menu-btn{display:block}
  .sidebar{position:fixed;top:56px;bottom:0;left:0;transform:translateX(-100%);
    transition:transform .22s ease;z-index:50;box-shadow:4px 0 24px rgba(0,0,0,.3)}
  body.nav-open .sidebar{transform:translateX(0)}
  body.nav-open .nav-backdrop{display:block;position:fixed;inset:56px 0 0 0;background:rgba(0,0,0,.4);z-index:45}
  .content{padding:16px}
  .user-chip{display:none}
  .row2,.row3{grid-template-columns:1fr}
}