/* =========================================================
   2nd-Level – gemeinsames Stylesheet
   Verwendet von: index.html, line_checker.html
   Aenderungen hier wirken auf alle eingebundenen Seiten.
   ========================================================= */

/* ---------- Variablen ---------- */
:root {
  --accent:        #003366;
  --accent-light:  #006699;
  --bg:            #f4f6f9;
  --card-bg:       #ffffff;
  --text:          #16202e;
  --text-soft:     #5b6472;
  --line:          #e0e5ec;
  --line-strong:   #b9c4d1;
  --radius:        10px;
  --dark:          #1b2635;
  --warn:          #c62828;
  /* Signalfarbe: ausschliesslich fuer das Hinweisband reserviert */
  --notice:        #f5a623;
  --notice-deep:   #8a5a00;
  --notice-ink:    #2b1d00;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Kopfleiste ---------- */
header {
  background: var(--accent);
  color: #fff;
}
.header-inner {
  max-width: 1040px; margin: 0 auto;
  padding: 1.45rem 1.5rem;
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
}
header h1 { font-size: 1.6rem; font-weight: 700; letter-spacing: -0.015em; line-height: 1.2; }
header p  { font-size: 0.88rem; color: rgba(255,255,255,0.72); }

/* =========================================================
   HINWEISBAND – aktuelles Problem
   Zum Entfernen: den kompletten Block <a id="hinweis-aktuell">
   im Body loeschen. Dieses CSS kann dann stehen bleiben.
   ========================================================= */
.notice-bar {
  display: block;
  width: 100%;
  background: var(--notice);
  border-top: 1px solid rgba(0,0,0,0.12);
  border-bottom: 3px solid var(--notice-deep);
  color: var(--notice-ink);
  text-decoration: none;
  transition: background-color 0.12s linear;
}
.notice-bar:hover { background: #ffb43d; }
.notice-bar:focus-visible { outline: 3px solid var(--accent); outline-offset: -3px; }

.notice-inner {
  max-width: 1040px; margin: 0 auto;
  padding: 1.15rem 1.5rem;
  display: flex; align-items: center; gap: 1.15rem; flex-wrap: wrap;
}
.notice-icon { flex: 0 0 auto; }
.notice-icon svg { width: 34px; height: 34px; stroke-width: 1.9; display: block; }

.notice-text { flex: 1 1 260px; min-width: 0; }
.notice-label {
  display: block;
  font-size: 0.7rem; font-weight: 800; text-transform: uppercase;
  letter-spacing: 0.14em; color: var(--notice-deep);
  margin-bottom: 0.12rem;
}
.notice-text h2 { font-size: 1.22rem; font-weight: 700; letter-spacing: -0.01em; line-height: 1.25; }
.notice-text p  { font-size: 0.93rem; color: rgba(43,29,0,0.78); margin-top: 0.1rem; }

.notice-btn {
  flex: 0 0 auto;
  background: var(--accent); color: #fff;
  font-size: 0.93rem; font-weight: 650;
  padding: 0.6rem 1.15rem; border-radius: 6px;
  display: inline-flex; align-items: center; gap: 0.5rem;
  white-space: nowrap;
}
.notice-btn svg { width: 16px; height: 16px; stroke-width: 2.2; }
.notice-bar:hover .notice-btn { background: #00294f; }

/* ---------- Main ---------- */
main {
  flex: 1; width: 100%; max-width: 1040px;
  margin: 0 auto; padding: 2rem 1.5rem 1rem;
}

.section-title {
  font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--text-soft); font-weight: 700;
  margin: 0 0 0.85rem 0;
  display: flex; align-items: center; gap: 0.7rem;
}
.section-title::after { content: ""; flex: 1; height: 1px; background: var(--line); }

.block + .block { margin-top: 2.1rem; }

.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(228px, 1fr));
  gap: 1.1rem; width: 100%;
}
.link-grid.cols-3 { grid-template-columns: repeat(auto-fit, minmax(228px, 1fr)); }

/* ---------- Kachel ---------- */
.tool-link {
  --cat: var(--line-strong);
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none; color: var(--text);
  display: flex; flex-direction: column;
  padding: 1.1rem 1.1rem 1.15rem 1.35rem;
  min-height: 150px;
  transition: border-color 0.12s linear, background-color 0.12s linear;
}
.tool-link::before {
  content: ""; position: absolute; left: 0; top: 0;
  height: 100%; width: 3px; background: var(--cat);
  border-radius: var(--radius) 0 0 var(--radius);
}
.tool-link:hover { border-color: var(--line-strong); background: #fafbfd; }
.tool-link:focus-visible { outline: 3px solid var(--accent-light); outline-offset: 2px; }

.tool-link .icon { color: var(--text); margin-bottom: auto; display: block; }
.tool-link .icon svg { width: 24px; height: 24px; stroke-width: 1.75; display: block; }

.tool-link h2 {
  font-size: 1.02rem; font-weight: 650; letter-spacing: -0.005em;
  margin: 0.9rem 0 0.15rem;
  overflow-wrap: break-word; hyphens: auto;
}
.tool-link p { font-size: 0.85rem; color: var(--text-soft); }

.num {
  position: absolute; top: 0.6rem; right: 0.75rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.8rem; font-weight: 700;
  color: var(--text-soft); opacity: 0.7;
}

/* ---------- Fernwartungsblock (hell gerahmt) ---------- */
.remote-panel {
  background: #e9eef4;
  border: 1px solid #dae1ea;
  border-radius: 12px;
  padding: 1.05rem 1.05rem 1.15rem;
}
.remote-panel .section-title { color: var(--text-soft); }
.remote-panel .section-title::after { background: #c9d3de; }
.remote-panel .tool-link { border: 1px solid rgba(0,0,0,0.10); }
.remote-panel .tool-link:hover { background-image: linear-gradient(rgba(255,255,255,0.1), rgba(255,255,255,0.1)); }
.remote-panel .tool-link h2 { color: #fff; }
.remote-panel .tool-link p  { color: rgba(255,255,255,0.88); }
.remote-panel .tool-link .icon { color: #fff; }
.remote-panel .num { color: #fff; opacity: 0.65; }

.tool-link.teamviewer { background: #2196f3; --cat: #0b74c4; }
.tool-link.anydesk    { background: #ef4438; --cat: #c1281d; }
/* Sonder-QS: bewusst anthrazit statt blau, damit "die blaue Kachel" eindeutig bleibt */
.tool-link.warn       { background: #2b3442; --cat: var(--warn); }
.tool-link.warn p {
  display: inline-block; align-self: flex-start;
  background: #fff; color: var(--warn); font-weight: 700;
  padding: 1px 7px; border-radius: 4px; font-size: 0.82rem;
}

/* ---------- Konvertierung (Angebotsstreifen) ---------- */
.offer {
  display: flex; align-items: center; gap: 1.1rem; flex-wrap: wrap;
  background: var(--accent);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  color: #fff; text-decoration: none;
  transition: background-color 0.12s linear;
}
.offer:hover { background: #004385; }
.offer:focus-visible { outline: 3px solid var(--accent-light); outline-offset: 3px; }
.offer-icon { flex: 0 0 auto; }
.offer-icon svg { width: 26px; height: 26px; stroke-width: 1.8; display: block; }
.offer-text { flex: 1 1 300px; min-width: 0; }
.offer .eyebrow {
  display: block; margin-bottom: 0.1rem;
  font-size: 0.68rem; font-weight: 800;
  text-transform: uppercase; letter-spacing: 0.13em;
  color: #8ec8f2;
}
.offer h2 { font-size: 1.12rem; font-weight: 700; letter-spacing: -0.01em; line-height: 1.3; }
.offer p  { font-size: 0.89rem; color: rgba(255,255,255,0.84); margin-top: 0.2rem; }
.offer-points {
  display: flex; flex-direction: column; gap: 0.18rem;
  margin-top: 0.4rem;
}
.offer-points > span {
  display: flex; align-items: flex-start; gap: 0.45rem;
  font-size: 0.89rem; color: rgba(255,255,255,0.88);
}
.offer-points svg {
  width: 15px; height: 15px; stroke-width: 2.6;
  color: #7fd4a8; flex: 0 0 auto; margin-top: 0.18rem;
}

.offer-tags {
  display: flex; flex-wrap: wrap; gap: 0.4rem;
  margin-top: 0.55rem;
}
.offer-tags span {
  font-size: 0.73rem; font-weight: 600; letter-spacing: 0.01em;
  color: #d7e8f7;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 4px;
  padding: 0.12rem 0.5rem;
}

.offer-btn {
  flex: 0 0 auto;
  background: #fff; color: var(--accent);
  font-size: 0.9rem; font-weight: 650;
  padding: 0.55rem 1.05rem; border-radius: 6px;
  display: inline-flex; align-items: center; gap: 0.5rem; white-space: nowrap;
}
.offer-btn svg { width: 16px; height: 16px; stroke-width: 2.2; }

.offer-links {
  display: flex; flex-wrap: wrap; gap: 1.6rem;
  margin-top: 0.65rem; padding-left: 0.2rem;
}
.offer-links a {
  display: inline-flex; align-items: center; gap: 0.35rem;
  font-size: 0.88rem; font-weight: 600;
  color: var(--accent-light); text-decoration: none;
}
.offer-links a:hover { text-decoration: underline; }
.offer-links svg { width: 14px; height: 14px; stroke-width: 2.4; }

/* ---------- Kategoriefarben (unterer Bereich) ---------- */
.cat-test     { --cat: #0ea5a4; }  /* Diagnostik / Test   */
.cat-info     { --cat: #6366f1; }  /* Doku / Info         */
.cat-download { --cat: #d97706; }  /* Downloads / Treiber */
.cat-editor   { --cat: #ec4899; }  /* Editor              */

/* ---------- Reserve ---------- */
.tool-link.reserve {
  background: transparent; border: 1px dashed var(--line-strong);
  align-items: center; justify-content: center; text-align: center;
  color: var(--text-soft);
}
.tool-link.reserve::before { display: none; }
.tool-link.reserve:hover { background: rgba(255,255,255,0.6); border-color: var(--text-soft); }
.tool-link.reserve .icon { color: var(--text-soft); margin-bottom: 0.4rem; }
.tool-link.reserve span.label { font-size: 0.85rem; font-weight: 600; }

/* ---------- Formular-Kachel (Kachel mit Eingabefeld, z. B. Firewall-Batch) ----------
   Aufbau: <div class="tool-link cat-... form-tile"> mit .icon, h2, p,
   input.tile-input, button.tile-action und p.tile-msg                        */
.tool-link.form-tile:hover { border-color: var(--line); background: var(--card-bg); }
.tool-link.form-tile:focus-within { border-color: var(--line-strong); }
.form-tile .tile-input {
  font: inherit; font-size: 0.82rem;
  width: 100%; margin-top: 0.55rem;
  padding: 0.32rem 0.5rem;
  border: 1px solid var(--line); border-radius: 5px;
  background: var(--bg); color: var(--text);
}
.form-tile .tile-input:focus {
  outline: 2px solid var(--accent-light); outline-offset: 0;
  border-color: var(--accent-light); background: #fff;
}
.form-tile .tile-action {
  align-self: flex-start;
  display: inline-flex; align-items: center; gap: 0.35rem;
  margin-top: 0.55rem; padding: 0;
  background: none; border: 0; cursor: pointer;
  font: inherit; font-size: 0.85rem; font-weight: 650;
  color: var(--accent-light);
}
.form-tile .tile-action svg { width: 15px; height: 15px; stroke-width: 2.2; }
.form-tile .tile-action:hover { text-decoration: underline; }
.form-tile .tile-action:focus-visible { outline: 2px solid var(--accent-light); outline-offset: 2px; border-radius: 3px; }
.form-tile .tile-action:disabled { color: var(--text-soft); cursor: wait; text-decoration: none; }
.form-tile .tile-msg { font-size: 0.78rem; color: var(--text-soft); margin-top: 0.3rem; }
.form-tile .tile-msg:empty { display: none; }
.form-tile .tile-msg.is-error { color: var(--warn); }
/* Ab Tablet-Breite doppelt breit, damit der Pfad vollstaendig sichtbar ist */
@media screen and (min-width: 761px) {
  .tool-link.form-tile { grid-column: span 2; }
}

/* ---------- Logos ---------- */
.logos {
  display: flex; justify-content: center; align-items: center;
  gap: 2.5rem; max-width: 1040px; margin: 2.5rem auto 1.5rem;
  width: 100%; padding: 0 1.5rem;
}
.logos img { max-width: 104px; height: auto; opacity: 0.8; }
.logos img:hover { opacity: 1; }

/* ---------- Footer ---------- */
footer {
  background: var(--accent); color: rgba(255,255,255,0.8);
  text-align: center; padding: 0.9rem; font-size: 0.85rem;
}

/* ---------- Responsive ---------- */
@media screen and (max-width: 760px) {
  .notice-inner { padding: 1rem 1.25rem; gap: 0.9rem; }
  .notice-btn { width: 100%; justify-content: center; }
  .link-grid { grid-template-columns: repeat(auto-fill, minmax(165px, 1fr)); }
  .link-grid.cols-3 { grid-template-columns: repeat(auto-fit, minmax(165px, 1fr)); }
  .block + .block { margin-top: 2rem; }
  main { padding: 1.75rem 1.25rem 1rem; }
}
@media screen and (max-width: 430px) {
  .link-grid, .link-grid.cols-3 { grid-template-columns: 1fr; }
  .tool-link { min-height: 0; }
  .tool-link .icon { margin-bottom: 0.5rem; }
  .tool-link h2 { margin-top: 0; }
  .header-inner { padding: 1.1rem 1.15rem; }
}

/* =========================================================
   EKG-Leitungstest (line_checker.html)
   ========================================================= */

.panel {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.25rem 1.35rem 1.4rem;
}

.lead-hint { font-size: 0.93rem; color: var(--text-soft); margin-bottom: 1rem; }

.lead-group + .lead-group { margin-top: 1.1rem; }
.lead-group > .group-label {
  display: block; margin-bottom: 0.5rem;
  font-size: 0.72rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--text-soft);
}

.lead-row { display: flex; flex-wrap: wrap; gap: 0.6rem; }

/* Elektroden-Schalter: echtes Kontrollkaestchen, visuell als Kachel */
.lead {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 72px; min-height: 60px;
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #fff;
  font-size: 1.05rem; font-weight: 700;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color: var(--text);
  cursor: pointer; user-select: none;
  transition: background-color 0.12s linear, border-color 0.12s linear, color 0.12s linear;
}
.lead input { position: absolute; opacity: 0; width: 0; height: 0; }
.lead:hover { border-color: var(--accent-light); background: #f5f8fc; }
.lead:has(input:checked) {
  background: var(--accent); border-color: var(--accent); color: #fff;
}
.lead:has(input:focus-visible) { outline: 3px solid var(--accent-light); outline-offset: 2px; }

/* Ergebnis */
.result-panel { margin-top: 1.2rem; }
.result-empty { font-size: 0.93rem; color: var(--text-soft); }
.result-list { display: flex; flex-direction: column; gap: 0.45rem; }
.result-item {
  display: flex; align-items: baseline; gap: 0.7rem; flex-wrap: wrap;
  border-left: 3px solid var(--accent);
  background: #f5f8fc;
  border-radius: 0 6px 6px 0;
  padding: 0.5rem 0.75rem;
}
.result-item b { font-size: 0.98rem; }
.result-item code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85rem; color: var(--text-soft);
}

/* Hinweis auf wahrscheinliche N-Leitung */
.result-n {
  display: flex; align-items: flex-start; gap: 0.7rem;
  background: #fff6e2;
  border: 1px solid var(--notice);
  border-left: 4px solid var(--notice);
  border-radius: 0 8px 8px 0;
  padding: 0.7rem 0.9rem;
  color: var(--notice-ink);
  font-size: 0.92rem;
}
.result-n svg { width: 19px; height: 19px; stroke-width: 2; flex: 0 0 auto; margin-top: 0.1rem; color: var(--notice-deep); }

/* Bestellbereich */
.order-row {
  display: flex; align-items: flex-end; gap: 0.8rem; flex-wrap: wrap;
  margin-top: 1.2rem; padding-top: 1.1rem;
  border-top: 1px solid var(--line);
}
.field { display: flex; flex-direction: column; gap: 0.3rem; }
.field label { font-size: 0.78rem; font-weight: 700; color: var(--text-soft); }
.field input[type="text"] {
  font: inherit; font-size: 0.95rem;
  padding: 0.5rem 0.7rem; width: 200px;
  border: 1px solid var(--line-strong); border-radius: 6px;
  background: #fff; color: var(--text);
}
.field input[type="text"]:focus { outline: 3px solid var(--accent-light); outline-offset: 1px; border-color: var(--accent-light); }

.btn-primary {
  font: inherit; font-size: 0.93rem; font-weight: 650;
  padding: 0.6rem 1.2rem; border-radius: 6px;
  background: var(--accent); color: #fff;
  border: 1px solid var(--accent);
  text-decoration: none; cursor: pointer;
  transition: background-color 0.12s linear;
}
.btn-primary:hover { background: #004385; }
.btn-primary[aria-disabled="true"] {
  background: #e3e8ee; border-color: var(--line-strong);
  color: #93a0ae; cursor: not-allowed;
}
.btn-secondary {
  font: inherit; font-size: 0.93rem; font-weight: 650;
  padding: 0.6rem 1.1rem; border-radius: 6px;
  background: #fff; color: var(--accent);
  border: 1px solid var(--line-strong); cursor: pointer;
}
.btn-secondary:hover { border-color: var(--accent-light); }

.order-note { font-size: 0.83rem; color: var(--text-soft); flex: 1 1 100%; }

.explain { margin-top: 1.5rem; font-size: 0.88rem; color: var(--text-soft); }
.explain p + p { margin-top: 0.5rem; }

.back-link {
  display: inline-flex; align-items: center; gap: 0.4rem;
  margin-top: 1.5rem;
  font-size: 0.88rem; font-weight: 600;
  color: var(--accent-light); text-decoration: none;
}
.back-link:hover { text-decoration: underline; }

/* Formularfelder: Auswahlliste, Fehlerzustand, Meldungen (u. a. Downloads/license.html) */
.field select {
  font: inherit; font-size: 0.95rem;
  padding: 0.5rem 0.7rem; min-width: 160px;
  height: calc(0.95rem * 1.45 + 1rem + 2px); /* gleiche Hoehe wie .field input */
  border: 1px solid var(--line-strong); border-radius: 6px;
  background: #fff; color: var(--text);
}
.field select:focus { outline: 3px solid var(--accent-light); outline-offset: 1px; border-color: var(--accent-light); }
.field input.invalid { border-color: var(--warn); }
.btn-primary:disabled {
  background: #e3e8ee; border-color: var(--line-strong);
  color: #93a0ae; cursor: wait;
}
.form-msg { margin-top: 1rem; font-size: 0.9rem; color: var(--text-soft); }
.form-msg.is-error { color: var(--warn); font-weight: 600; }
.license-dl {
  margin-left: auto;
  display: inline-flex; align-items: center; gap: 0.45rem;
  padding: 0.4rem 0.95rem; font-size: 0.88rem;
}
.license-dl svg { width: 15px; height: 15px; stroke-width: 2.2; }

@media screen and (max-width: 430px) {
  .lead { min-width: 60px; min-height: 54px; padding: 0.45rem 0.7rem; }
  .field input[type="text"] { width: 100%; }
  .field { flex: 1 1 100%; }
  .btn-primary { width: 100%; }
}