:root{
  --bg:#eef2f8; --panel:#ffffff; --ink:#0f172a; --muted:#64748b;
  --line:#e8ecf3; --brand:#2f6df6; --brand-ink:#1d4ed8;
  --brand-grad:linear-gradient(180deg,#3b82f6,#2563eb);
  --hero-grad:linear-gradient(120deg,#1e3a8a,#2563eb 55%,#3b82f6);
  --good:#0e9f6e; --bad:#e11d48; --chip:#eaf1ff; --radius:14px;
  --sh-sm:0 1px 2px rgba(16,24,40,.05);
  --sh-md:0 1px 2px rgba(16,24,40,.05),0 12px 26px -16px rgba(16,24,40,.22);
  --sh-lg:0 1px 2px rgba(16,24,40,.05),0 22px 40px -24px rgba(16,24,40,.30);
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink);font-size:14px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:var(--brand-ink);text-decoration:none}

/* ---------- top bar ---------- */
.topbar{display:flex;align-items:center;gap:18px;background:var(--panel);
  border-bottom:1px solid var(--line);padding:0 24px;height:58px;position:sticky;top:0;z-index:20;
  box-shadow:0 1px 3px rgba(16,24,40,.05)}
.brand{font-weight:800;font-size:17px;letter-spacing:-.2px;display:flex;align-items:center;gap:10px}
.brand .dot{width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,#3b82f6,#2563eb);
  box-shadow:0 0 0 4px rgba(47,109,246,.15)}
/* Klardash logo mark + wordmark */
.brandmark{display:inline-flex;align-items:center;flex:0 0 auto}
.brandmark svg{display:block;border-radius:9px;box-shadow:0 3px 10px -3px color-mix(in srgb, var(--brand) 55%, transparent)}
.brand .brandmark svg{width:28px;height:28px}
.wordmark{font-weight:800;letter-spacing:-.4px;line-height:1;white-space:nowrap}
.wordmark .w2{color:var(--brand)}
/* larger lockup for the login / hero */
.brand-lg{display:flex;align-items:center;gap:13px;justify-content:center}
.brand-lg .brandmark svg{width:46px;height:46px;border-radius:13px}
.brand-lg .wordmark{font-size:30px}
.brand-tag{color:var(--muted);font-weight:600;letter-spacing:2.5px;text-transform:uppercase;font-size:11px;margin-top:2px}
.nav{display:flex;gap:4px}
.nav a{padding:7px 13px;border-radius:9px;color:var(--muted);font-weight:600;transition:background .15s,color .15s}
.nav a:hover{background:#f1f5fc;color:var(--brand-ink)}
.nav a.active{background:var(--chip);color:var(--brand-ink)}
.spacer{flex:1}
.who{color:var(--muted);font-size:13px}

/* ---------- layout ---------- */
.wrap{max-width:min(1680px,95vw);margin:26px auto;padding:0 24px}
h1{font-size:24px;margin:0 0 4px;letter-spacing:-.4px}
h2{font-size:16.5px;margin:0 0 12px;letter-spacing:-.2px}
.sub{color:var(--muted);margin:0 0 22px}

/* ---------- panels & cards ---------- */
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px;
  margin-bottom:20px;box-shadow:var(--sh-md)}
.grid{display:grid;gap:18px}
.cards{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
.chart-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:18px 20px;
  box-shadow:var(--sh-lg);transition:transform .15s ease,box-shadow .15s ease}
.chart-card:hover{transform:translateY(-2px);box-shadow:0 1px 2px rgba(16,24,40,.05),0 26px 46px -22px rgba(16,24,40,.36)}
.chart-card h3{margin:0 0 2px;font-size:15px;letter-spacing:-.2px}
.chart-card .meta{color:var(--muted);font-size:12px;margin-bottom:8px}
.chartbox{width:100%;height:300px}

/* ---------- gradient page hero (dashboards) ---------- */
.pagehero{background:var(--hero-grad);color:#fff;border-radius:18px;padding:22px 24px;margin-bottom:22px;
  position:relative;overflow:hidden;box-shadow:0 18px 40px -22px rgba(30,58,138,.6)}
.pagehero:after{content:"";position:absolute;right:-50px;top:-70px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.16),transparent 70%);pointer-events:none}
.pagehero>*{position:relative;z-index:1}
.pagehero h1{color:#fff}
.pagehero .sub{color:#d6e4ff;margin:4px 0 0}
.pagehero .crumb,.pagehero .crumb a{color:#cdddff}
.pagehero .muted{color:#d6e4ff}
.pagehero .who{color:#e2ebff}
.pagehero .btn{background:#fff;color:var(--brand-ink);box-shadow:0 8px 16px -8px rgba(0,0,0,.35)}
.pagehero .btn:hover{background:#f3f7ff}
.pagehero .btn.ghost{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.34);box-shadow:none}
.pagehero .btn.ghost:hover{background:rgba(255,255,255,.26)}
.pagehero .btn.danger{background:rgba(255,255,255,.16);color:#ffe0e0;border:1px solid rgba(255,255,255,.34)}
.pagehero select{background:rgba(255,255,255,.18);color:#fff;border-color:rgba(255,255,255,.34)}
.pagehero select option{color:#111}

/* ---------- buttons ---------- */
.btn{background:var(--brand-grad);color:#fff;border:none;border-radius:10px;padding:9px 16px;
  font-weight:700;cursor:pointer;font-size:14px;box-shadow:0 6px 14px -6px rgba(37,99,235,.5);
  white-space:nowrap;line-height:1.2;display:inline-flex;align-items:center;justify-content:center;
  transition:transform .12s ease,box-shadow .12s ease,background .15s ease}
.btn:hover{transform:translateY(-1px);box-shadow:0 10px 20px -8px rgba(37,99,235,.55)}
.btn:active{transform:translateY(0)}
.btn.ghost{background:#f2f6fd;color:var(--brand-ink);box-shadow:none;border:1px solid #e4eaf4}
.btn.ghost:hover{background:#e9f0fb;transform:none}
.btn.sm{padding:6px 12px;font-size:13px;border-radius:9px}
.btn.danger{background:#fee2e2;color:var(--bad);box-shadow:none}
.btn.danger:hover{background:#fdd3d3;transform:none}

/* ---------- forms ---------- */
label{display:block;font-weight:600;margin:12px 0 5px;font-size:13px}
input,select,textarea{width:100%;padding:9px 12px;border:1px solid var(--line);border-radius:9px;
  font-size:14px;font-family:inherit;background:#fff;transition:border-color .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(47,109,246,.15)}
textarea{font-family:ui-monospace,Menlo,Consolas,monospace;min-height:90px}

/* ---------- tables ---------- */
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{text-align:left;padding:9px 11px;border-bottom:1px solid var(--line);white-space:nowrap}
th{color:var(--muted);font-weight:700;font-size:11px;letter-spacing:.4px;text-transform:uppercase;
  background:#f8fafd;position:sticky;top:0}
tbody tr{transition:background .12s}
tbody tr:hover td{background:#f8fbff}
.tablewrap{overflow:auto;max-height:340px;border:1px solid var(--line);border-radius:10px}

/* ---------- chips ---------- */
.chip{display:inline-block;background:var(--chip);color:var(--brand-ink);border-radius:20px;
  padding:2px 10px;font-size:12px;font-weight:700;margin:2px 4px 2px 0}
.chip.dim{background:#eafcf1;color:#0f7a3d}
.chip.meas{background:#e6f2fe;color:#0e7490}
.chip.temp{background:#fff2e0;color:#b45309}
.pill{display:inline-block;background:#eef2f8;color:var(--muted);border-radius:6px;padding:1px 8px;font-size:11px;font-weight:700}

/* ---------- misc ---------- */
.row{display:flex;gap:14px;flex-wrap:wrap}
.col{flex:1;min-width:200px}
.muted{color:var(--muted)}
.center{min-height:70vh;display:flex;align-items:center;justify-content:center}
.login{width:360px}
.err{background:#fef2f2;color:var(--bad);border:1px solid #fecaca;padding:10px 13px;border-radius:9px;margin-bottom:12px}
.ok{background:#f0fdf6;color:var(--good);border:1px solid #bbf7d0;padding:10px 13px;border-radius:9px;margin-bottom:12px}

/* ---------- KPI (number chart) ---------- */
.kpi{display:flex;flex-direction:column;align-items:center;justify-content:center;height:300px}
.kpi .big{font-size:44px;font-weight:800;letter-spacing:-1px;
  background:linear-gradient(180deg,#3b82f6,#1d4ed8);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:var(--brand-ink)}
.kpi .lbl{color:var(--muted);margin-top:6px;font-weight:600}

.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.type-picker{display:flex;gap:6px;flex-wrap:wrap}
.type-picker button{background:#fff;border:1px solid var(--line);border-radius:9px;padding:7px 12px;
  cursor:pointer;font-weight:600;color:var(--muted);transition:all .15s}
.type-picker button:hover{border-color:#cfd9e8}
.type-picker button.on{border-color:var(--brand);background:var(--chip);color:var(--brand-ink)}
.empty{text-align:center;color:var(--muted);padding:50px 20px}
.flex-between{display:flex;justify-content:space-between;align-items:center;gap:10px}

/* ============ Night mode (dark theme) ============ */
html[data-theme="dark"]{
  --bg:#0d1117; --panel:#131b26; --ink:#e6edf3; --muted:#8b97a8;
  --line:#1f2a37; --brand:#3b82f6; --brand-ink:#93c5fd; --chip:#17325e;
  --brand-grad:linear-gradient(180deg,#3b82f6,#2563eb);
  --good:#34d399; --bad:#f87171;
  --sh-sm:0 1px 2px rgba(0,0,0,.4);
  --sh-md:0 1px 2px rgba(0,0,0,.4),0 12px 28px -16px rgba(0,0,0,.7);
  --sh-lg:0 1px 2px rgba(0,0,0,.4),0 22px 40px -22px rgba(0,0,0,.78);
  color-scheme:dark;
}
html[data-theme="dark"] body{background:var(--bg);color:var(--ink)}
html[data-theme="dark"] .topbar{background:#111823;border-bottom:1px solid #1e2836;box-shadow:0 1px 3px rgba(0,0,0,.4)}
html[data-theme="dark"] .brand{color:#f0f6fc}
html[data-theme="dark"] .nav a:hover{background:#17222f;color:var(--brand-ink)}
html[data-theme="dark"] th{background:#0f1620;color:var(--muted)}
html[data-theme="dark"] tbody tr:hover td{background:#161f2b}
html[data-theme="dark"] input,
html[data-theme="dark"] select,
html[data-theme="dark"] textarea{background:#0f1620;color:var(--ink);border-color:var(--line)}
html[data-theme="dark"] input:focus,
html[data-theme="dark"] select:focus,
html[data-theme="dark"] textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(59,130,246,.25)}
html[data-theme="dark"] input::placeholder,
html[data-theme="dark"] textarea::placeholder{color:#5f6c7e}
html[data-theme="dark"] .btn.ghost{background:#1a2431;color:#c9d4e2;border:1px solid #263344}
html[data-theme="dark"] .btn.ghost:hover{background:#212d3c}
html[data-theme="dark"] .btn.danger{background:#3a1f22;color:#fca5a5}
html[data-theme="dark"] .type-picker button{background:#131b26;color:var(--muted)}
html[data-theme="dark"] .type-picker button.on{background:var(--chip);color:var(--brand-ink)}
html[data-theme="dark"] .err{background:#3a1f22;border-color:#5b2a2e;color:#fca5a5}
html[data-theme="dark"] .ok{background:#12281b;border-color:#1f4d33;color:#86efac}
html[data-theme="dark"] .pill{background:#1a2431;color:#9aa7b8}
html[data-theme="dark"] .kpi .big{background:linear-gradient(180deg,#60a5fa,#3b82f6);-webkit-background-clip:text;background-clip:text}
/* soften common inline light backgrounds used across pages */
html[data-theme="dark"] [style*="background:#fff"],
html[data-theme="dark"] [style*="background:#fafbff"],
html[data-theme="dark"] [style*="background:#fafbfc"],
html[data-theme="dark"] [style*="background:#f6f8fb"],
html[data-theme="dark"] [style*="background:#f7f9fc"]{background:#0f1620 !important}
html[data-theme="dark"] .theme-toggle{background:var(--chip);color:var(--brand-ink)}
.theme-toggle{cursor:pointer;font-size:15px;line-height:1}
body{transition:background .15s ease,color .15s ease}

/* ---------- skeleton loader ---------- */
.skel{position:relative;overflow:hidden;background:#eef1f6;border-radius:8px}
.skel::after{content:"";position:absolute;inset:0;transform:translateX(-100%);
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.65),transparent);animation:skel 1.2s infinite}
html[data-theme="dark"] .skel{background:#1a2431}
html[data-theme="dark"] .skel::after{background:linear-gradient(90deg,transparent,rgba(255,255,255,.08),transparent)}
@keyframes skel{100%{transform:translateX(100%)}}

/* ---------- responsive (tablet / phone) ---------- */
@media(max-width:820px){
  .topbar{flex-wrap:wrap;height:auto;padding:8px 16px;gap:10px}
  .nav{order:3;width:100%;overflow-x:auto;flex-wrap:nowrap;-webkit-overflow-scrolling:touch;padding-bottom:2px}
  .nav a{white-space:nowrap}
  .spacer{flex:0}
  .wrap{padding:0 16px;margin:18px auto}
  .cards{grid-template-columns:1fr}
  .pagehero{padding:18px 18px}
  .flex-between{flex-wrap:wrap}
  h1{font-size:21px}
}
.kbd-hint{font-size:11px;color:var(--muted);border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-family:ui-monospace,Consolas,monospace}