/* Rechner-Seiten (Subnetzrechner, PoE-Rechner). Nutzt die Variablen aus site.css und theme.css. */
.tool-page { padding-bottom: 3rem; }
.tool-page .sr { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.crumbs { font-size: .9rem; color: var(--muted); margin: 0 0 1rem; display: flex; flex-wrap: wrap; gap: .35rem; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--accent); }
.tool-head h1 { margin: .2rem 0 .4rem; }
.tool-head .lead { margin: 0 0 1rem; max-width: 70ch; }
.tool-intro { margin-bottom: 1.5rem; }
.tool-intro p { max-width: 80ch; }
.tool-app { display: grid; gap: 1rem; margin: 0 0 2.5rem; }

/* Karten */
.tcard { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 1.1rem 1.25rem 1.25rem; min-width: 0; }
.tcard > h2 { font-size: 1.05rem; letter-spacing: .04em; text-transform: uppercase; margin: 0 0 .9rem; }
.tcard label { display: block; font-weight: 600; font-size: .92rem; margin: 0 0 .35rem; }
.tcard input[type="text"], .tcard input[type="number"], .tcard select, .tcard textarea { width: 100%; box-sizing: border-box; background: var(--bg, #0a0e14); color: var(--text); border: 1px solid var(--line); border-radius: 8px; padding: .6rem .75rem; font: inherit; min-height: 2.6rem; }
.tcard input#sn-input { font: 600 1.15rem/1.2 var(--mono, ui-monospace, SFMono-Regular, Menlo, Consolas, monospace); padding: .8rem .9rem; }
.tcard textarea { font-family: var(--mono, ui-monospace, monospace); font-size: .95rem; resize: vertical; }
.tcard input:focus-visible, .tcard select:focus-visible, .tcard textarea:focus-visible, .tbtn:focus-visible, .chip:focus-visible, .cbtn:focus-visible, .bit:focus-visible, .ttab:focus-visible, tr.clickable:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.tcard input[aria-invalid="true"] { border-color: #ff6b6b; }
.thint { color: var(--muted); font-size: .88rem; margin: .5rem 0 0; }
.terror { color: #ff8c8c; font-weight: 600; margin: .5rem 0 0; }
.terror[hidden] { display: none; }
.tstatus { margin: .6rem 0 0; min-height: 1.2em; }
.tstatus.good { color: var(--accent); }
.tstatus.bad { color: #ff8c8c; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: .9rem 1rem; }
.inline-row { display: flex; flex-wrap: wrap; gap: .6rem 1rem; align-items: center; margin: 0 0 .8rem; }
.inline-row label { margin: 0; }
.inline-row select, .inline-row input { width: auto !important; min-width: 12rem; }

/* Buttons und Chips */
.tbtn, .chip, .cbtn { font: inherit; cursor: pointer; border-radius: 8px; border: 1px solid var(--line); background: transparent; color: var(--text); }
.tbtn { padding: .5rem .9rem; font-weight: 600; }
.tbtn.sq { width: 2.4rem; height: 2.4rem; padding: 0; font-size: 1.2rem; line-height: 1; }
.tbtn:hover, .chip:hover { border-color: var(--accent); color: var(--accent); }
.chips { display: flex; flex-wrap: wrap; gap: .45rem; align-items: center; margin: .9rem 0 .2rem; }
.chip { padding: .3rem .7rem; font: .85rem/1.2 var(--mono, ui-monospace, monospace); background: var(--accent-soft, rgba(34,230,126,.08)); }
.cbtn { padding: .15rem .55rem; font-size: .78rem; color: var(--accent); border-color: var(--accent-line, rgba(34,230,126,.35)); }
.cbtn:hover { background: var(--accent-soft, rgba(34,230,126,.1)); }
.cbtn.done { background: var(--accent); color: #04120a; }
.slider-row { display: flex; align-items: center; gap: .8rem; margin-top: 1rem; }
.slider-row label { margin: 0; }
.slider-row input[type="range"] { flex: 1; min-width: 0; accent-color: var(--accent); padding: 0; min-height: 0; }
.slider-row output { font: 700 1.1rem var(--mono, ui-monospace, monospace); color: var(--accent); min-width: 3.2rem; text-align: right; }

/* Bit-Board */
.bitboard { display: flex; flex-wrap: wrap; gap: .8rem 1.1rem; }
.octet { text-align: center; }
.bitrow { display: flex; gap: 3px; }
.bit { width: 1.7rem; height: 2.1rem; padding: 0; border-radius: 5px; border: 1px solid transparent; font: 600 .95rem var(--mono, ui-monospace, monospace); cursor: pointer; color: var(--text); }
.bit.net { background: rgba(59,130,246,.22); border-color: rgba(59,130,246,.6); }
.bit.host { background: rgba(34,230,126,.16); border-color: rgba(34,230,126,.5); }
.bit.edge { box-shadow: 3px 0 0 0 #fff; margin-right: 3px; }
.bit:hover { filter: brightness(1.3); }
.dec { margin-top: .3rem; color: var(--muted); font: .9rem var(--mono, ui-monospace, monospace); }
.legend { display: flex; flex-wrap: wrap; gap: .4rem 1.4rem; margin: .9rem 0 0; font-size: .88rem; color: var(--muted); }
.lg::before { content: ""; display: inline-block; width: .8rem; height: .8rem; border-radius: 3px; margin-right: .4rem; vertical-align: -1px; }
.lg.net::before { background: rgba(59,130,246,.6); }
.lg.host::before { background: rgba(34,230,126,.6); }
.v6row { display: flex; flex-wrap: wrap; align-items: center; font: 600 1.15rem var(--mono, ui-monospace, monospace); gap: .1rem; }
.v6g { display: inline-flex; }
.v6c { color: var(--muted); padding: 0 .15rem; }
.nib { padding: .2rem .12rem; border-radius: 3px; }
.nib.net { color: #8fb8ff; background: rgba(59,130,246,.18); }
.nib.mix { color: #fff; background: linear-gradient(90deg, rgba(59,130,246,.35), rgba(34,230,126,.3)); }
.nib.host { color: var(--accent); background: rgba(34,230,126,.1); }

/* Ergebnisse */
.results { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .8rem; }
.rcard { position: relative; background: rgba(255,255,255,.02); border: 1px solid var(--line); border-radius: 10px; padding: .75rem 1rem .85rem; min-width: 0; }
.rcard.wide { grid-column: 1 / -1; }
.rcard.bad { border-color: rgba(255,107,107,.6); }
.rl { color: var(--muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; padding-right: 5.5rem; }
.rv { font-weight: 700; font-size: 1.15rem; margin-top: .25rem; overflow-wrap: anywhere; }
.rv.mono { font-family: var(--mono, ui-monospace, monospace); }
.rh { color: var(--muted); font-size: .82rem; margin-top: .25rem; }
.rcard .cbtn { position: absolute; top: .6rem; right: .7rem; }
.banner { border-radius: 10px; padding: .8rem 1rem; margin: 0 0 1rem; font-weight: 600; border: 1px solid var(--line); }
.banner.good { background: rgba(34,230,126,.1); border-color: rgba(34,230,126,.5); color: #b9f5d3; }
.banner.warn { background: rgba(255,190,60,.1); border-color: rgba(255,190,60,.5); color: #ffd98a; }
.banner.bad { background: rgba(255,107,107,.1); border-color: rgba(255,107,107,.55); color: #ffb3b3; }
.banner[hidden], .meter[hidden] { display: none; }
.meter { height: .7rem; background: rgba(255,255,255,.08); border-radius: 999px; overflow: hidden; margin: 0 0 1rem; }
.meter .bar { height: 100%; width: 0; border-radius: 999px; transition: width .2s ease; background: var(--accent); }
.meter .bar.warn { background: #ffbe3c; }
.meter .bar.bad { background: #ff6b6b; }
.warnlist { margin: 1rem 0 0; padding-left: 1.2rem; color: #ffd98a; }
.warnlist:empty { display: none; }

/* Tabellen */
.twrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.ttable { width: 100%; border-collapse: collapse; font-size: .92rem; }
.ttable th, .ttable td { text-align: left; padding: .5rem .65rem; border-bottom: 1px solid var(--line); vertical-align: middle; }
.ttable thead th { color: var(--muted); font-size: .76rem; text-transform: uppercase; letter-spacing: .05em; white-space: nowrap; }
.ttable td.mono, .ttable .mono { font-family: var(--mono, ui-monospace, monospace); }
.ttable td .cbtn { margin-left: .4rem; }
.ttable tr.clickable { cursor: pointer; }
.ttable tr.clickable:hover td { background: var(--accent-soft, rgba(34,230,126,.08)); }
.ttable tr.bad td { color: #ffb3b3; }
.ttable.steps th { width: 14rem; white-space: normal; color: var(--text); font-size: .9rem; text-transform: none; letter-spacing: 0; }
.devices input, .devices select { min-width: 5rem; }
.devices td:first-child input { min-width: 11rem; }
.stepslist { margin: 1rem 0 0; padding-left: 1.2rem; color: var(--muted); }
.tdetails > summary { cursor: pointer; font-weight: 700; letter-spacing: .03em; }
.tdetails[open] > summary { margin-bottom: .9rem; }
.tdetails.inner { border: 0; padding: .5rem 0 0; background: none; }

/* Tabs und Modus */
.ttabs { display: flex; flex-wrap: wrap; gap: .4rem; }
.ttab { font: inherit; font-weight: 700; padding: .6rem 1rem; border: 1px solid var(--line); border-radius: 10px; background: transparent; color: var(--muted); cursor: pointer; }
.ttab[aria-selected="true"] { background: var(--accent); border-color: var(--accent); color: #04120a; }
.tpanel { display: grid; gap: 1rem; }
.tpanel[hidden] { display: none; }
.modes { border: 0; padding: 0; margin: 0 0 .5rem; display: grid; gap: .4rem; }
.modes legend { font-weight: 700; padding: 0; margin-bottom: .3rem; }
.radio { display: flex; gap: .6rem; align-items: flex-start; font-weight: 400 !important; cursor: pointer; }
.radio input { margin-top: .25rem; accent-color: var(--accent); }
.devices td:nth-child(4) { opacity: .55; }
.mode-typical .devices td:nth-child(4) { opacity: 1; }

/* Pro-Hinweis, Text, FAQ */
.pro-box { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.2rem; background: linear-gradient(135deg, rgba(59,130,246,.12), rgba(34,230,126,.08)); border: 1px solid var(--accent-line, rgba(34,230,126,.35)); border-radius: 12px; padding: 1.2rem 1.4rem; margin: 0 0 2.5rem; }
.pro-box h2 { margin: 0 0 .4rem; font-size: 1.15rem; }
.pro-box p { margin: 0 0 .5rem; color: var(--muted); }
.pro-box ul { margin: 0; padding-left: 1.2rem; }
.tool-body { margin: 0 0 2rem; }
.tool-body table { width: 100%; border-collapse: collapse; margin: 1rem 0; display: block; overflow-x: auto; }
.tool-body th, .tool-body td { text-align: left; padding: .5rem .7rem; border-bottom: 1px solid var(--line); }
.faq { margin: 0 0 2rem; }
.faq details { border: 1px solid var(--line); border-radius: 10px; padding: .75rem 1rem; margin: 0 0 .6rem; background: var(--card); }
.faq summary { cursor: pointer; font-weight: 700; }
.faq details p { margin: .7rem 0 0; color: var(--muted); }
.tool-disclaimer { font-size: .88rem; margin: 0 0 2rem; }
.related-tools h2 { margin: 0 0 1rem; }

@media (max-width: 700px) {
  .grid-2 { grid-template-columns: 1fr; }
  .results { grid-template-columns: 1fr; }
  .tcard { padding: 1rem; }
  .bit { width: 1.45rem; height: 1.9rem; font-size: .85rem; }
  .bitboard { gap: .7rem .8rem; }
  .ttab { flex: 1 1 auto; text-align: center; }
  .slider-row { flex-wrap: wrap; }
  .slider-row input[type="range"] { flex: 1 1 100%; order: 3; }
  .rl { padding-right: 5.2rem; }
}
@media (max-width: 400px) { .bit { width: 1.3rem; height: 1.8rem; } .bitrow { gap: 2px; } }
@media (prefers-reduced-motion: reduce) { .meter .bar { transition: none; } }