:root {
  --bg: #f7f7f5; --card: #ffffff; --tile: #f0efec; --ink: #0b0b0b; --ink-2: #52514e; --ink-3: #898781;
  --line: rgba(11,11,11,.10); --line-2: rgba(11,11,11,.18);
  --el: #2a78d6; --af: #eb6834; --tr: #1baf7a;
  --ok: #1a7f37; --warn: #9a6700; --lo: #1a7f37; --hi: #c9372c; --err: #c9372c;
  --r: 10px; --r-lg: 14px;
  --safe-t: env(safe-area-inset-top); --safe-b: env(safe-area-inset-bottom);
  --safe-l: env(safe-area-inset-left); --safe-r: env(safe-area-inset-right);
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121211; --card: #1a1a19; --tile: #222220; --ink: #f0efec; --ink-2: #c3c2b7; --ink-3: #898781;
    --line: rgba(255,255,255,.10); --line-2: rgba(255,255,255,.18);
    --el: #3987e5; --af: #d95926; --tr: #199e70; --ok: #4ac26b; --warn: #d4a72c; --lo: #4ac26b; --hi: #f47067; --err: #f47067;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); }
body {
  font: 15px/1.45 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Inter, Roboto, sans-serif;
  -webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: transparent;
  font-variant-numeric: tabular-nums;
}
h1 { font-size: 17px; font-weight: 600; margin: 0; letter-spacing: -.01em; }
p { margin: 0; }
.muted { color: var(--ink-2); }
.small { font-size: 12px; }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; background: transparent; border: 1px solid var(--line-2); border-radius: var(--r); padding: 8px 12px; }
button:active { transform: scale(.98); }
button.icon { width: 38px; height: 38px; padding: 0; display: inline-grid; place-items: center; }
button.icon svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
button.primary { background: var(--ink); color: var(--bg); border-color: var(--ink); font-weight: 500; }

/* ---------- login */
.login { min-height: 100dvh; display: grid; place-items: center; padding: calc(24px + var(--safe-t)) 20px calc(24px + var(--safe-b)); }
.login-card { width: 100%; max-width: 360px; background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 28px 24px; display: flex; flex-direction: column; gap: 6px; }
.login-logo { border-radius: 13px; margin-bottom: 10px; }
.login-card h1 { font-size: 20px; }
.login-card .muted { margin-bottom: 14px; }
.login-card label { font-size: 13px; color: var(--ink-2); }
.login-card input:not([type=checkbox]) { height: 44px; padding: 0 12px; border: 1px solid var(--line-2); border-radius: var(--r); background: transparent; margin-bottom: 8px; font-size: 16px; }
.login-card input:focus { outline: 2px solid var(--el); outline-offset: 1px; }
.login-card .check { display: flex; align-items: center; gap: 8px; margin: 4px 0 12px; }
.login-card .check input { width: 18px; height: 18px; accent-color: var(--ink); }
.login-card button { height: 44px; }
.err { color: var(--err); font-size: 13px; margin: 0 0 6px; }

/* ---------- app */
.app {
  max-width: 1680px; margin: 0 auto;
  padding: calc(16px + var(--safe-t)) calc(28px + var(--safe-r)) calc(24px + var(--safe-b)) calc(28px + var(--safe-l));
  display: flex; flex-direction: column; gap: 16px; min-height: 100dvh;
}
.top { display: flex; justify-content: space-between; align-items: center; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { border-radius: 7px; box-shadow: 0 0 0 1px var(--line); }
.top-actions { display: flex; gap: 8px; }
.top-actions form { margin: 0; }

.kpis { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.kpi { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 14px 16px; min-width: 0; }
.kpi .lbl { font-size: 13px; color: var(--ink-2); }
.kpi .lbl.lo { color: var(--lo); }
.kpi .lbl.hi { color: var(--hi); }
.kpi .val { font-size: 30px; font-weight: 600; letter-spacing: -.02em; margin-top: 2px; white-space: nowrap; }
.kpi .val small { font-size: 14px; font-weight: 400; color: var(--ink-2); margin-left: 3px; letter-spacing: 0; }
.kpi .sub { font-size: 13px; color: var(--ink-3); }
.kpi .status { margin-top: 8px; font-size: 14px; }
.status.ok { color: var(--ok); }
.status.wait { color: var(--warn); }

.panel { flex: 1; display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 16px 18px 12px; min-height: 0; }
.controls { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.seg { display: inline-flex; border: 1px solid var(--line-2); border-radius: var(--r); overflow: hidden; }
.seg button { border: 0; border-radius: 0; padding: 7px 14px; color: var(--ink-2); }
.seg button + button { border-left: 1px solid var(--line); }
.seg button.on { background: var(--tile); color: var(--ink); font-weight: 600; }
.nav { display: flex; align-items: center; gap: 6px; }
.range { border: 0; font-weight: 500; min-width: 210px; text-align: center; }
.legend { display: flex; gap: 18px; font-size: 13px; color: var(--ink-2); margin: 14px 0 6px; flex-wrap: wrap; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.sw { width: 10px; height: 10px; border-radius: 2px; display: inline-block; }
.sw-el { background: var(--el); } .sw-af { background: var(--af); } .sw-tr { background: var(--tr); }
.chart-wrap { position: relative; flex: 1; min-height: 460px; height: calc(100dvh - 360px); }
.empty[hidden] { display: none; }
.empty { position: absolute; inset: 0; display: grid; place-items: center; color: var(--ink-3); }
.foot { margin-top: 10px; display: flex; flex-direction: column; gap: 4px; }
.fresh { display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 13px; color: var(--ink-2); }
.fresh b { font-weight: 600; color: var(--ink); }
.fresh.warn, .fresh.warn b { color: var(--warn); }

/* ---------- tablet */
@media (max-width: 1100px) {
  .kpis { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .kpi-status { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; padding: 10px 16px; }
  .kpi-status .status { margin: 0; }
}

/* ---------- mobil / webapp */
@media (max-width: 640px) {
  .app { padding: calc(10px + var(--safe-t)) calc(12px + var(--safe-r)) calc(12px + var(--safe-b)) calc(12px + var(--safe-l)); gap: 10px; }
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .kpi { padding: 10px 12px; border-radius: 12px; }
  .kpi .val { font-size: 22px; }
  .kpi .val small { font-size: 12px; }
  .kpi .sub, .kpi .lbl { font-size: 12px; }
  .kpi-status { padding: 9px 12px; }
  .kpi-status .status { font-size: 13px; }
  .panel { padding: 10px 8px 8px; border-radius: 12px; }
  .controls { display: grid; grid-template-columns: auto auto; justify-content: space-between; row-gap: 8px; }
  .controls .nav { grid-column: 1 / -1; grid-row: 2; justify-content: space-between; }
  .range { min-width: 0; flex: 1; font-size: 14px; }
  .seg button { padding: 7px 12px; font-size: 14px; }
  .legend { gap: 12px; font-size: 12px; margin: 10px 4px 2px; }
  .chart-wrap { min-height: 300px; height: calc(100dvh - 420px - var(--safe-t) - var(--safe-b)); }
  .foot { padding: 0 4px; }
  .fresh { font-size: 12px; gap: 2px 12px; }
}
@media (max-width: 640px) and (orientation: landscape) {
  .chart-wrap { height: 80dvh; }
}