/* ============================================================
   app.css – SAGITTA-Darts
   ============================================================ */

/* ---------------------------
   0) Design-Variablen
   --------------------------- */
:root{
  /* Layout */
  --sidebar-w: 260px;   /* Breite linke Navi-Spalte */
  --gap: 16px;          /* Abstand zwischen Grid-Bereichen */

  /* Banner-Höhen (sichtbarer Rahmen) */
  --banner-max-h: 250px;
  --banner-min-h: 160px;

  /* Farben */
  --bg: #0b1220;
  --ink: #e8ecf6;
  --muted: #9fb0d0;
  --card: #101726;
  --stroke: #223147;
  --accent: #d83b42;
  --accent-2: #18a74f;

  /* Content-Breite für Unterseiten */
  --content-w: min(980px, 92vw);

  /* Header-Fallback (wird durch JS/ResizeObserver überschrieben) */
  --header-h: 200px;
}

/* ---------------------------
   1) Global
   --------------------------- */
html,body{
  margin:0; padding:0;
  background:#0a1020; color:var(--ink);
  font:16px/1.45 system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

img,svg,object{ max-width:100%; height:auto; }

/* Standard-Links dezent */
a{ color:inherit; }
a:hover{ text-decoration: underline; }

/* Ankerziele nicht unter dem sticky Header verschwinden lassen */
:target{ scroll-margin-top: calc(var(--header-h) + 12px); }

/* Screenreader-only (für .sr-only Überschriften/Labels) */
.sr-only{
  position:absolute!important; width:1px!important; height:1px!important;
  padding:0!important; margin:-1px!important; overflow:hidden!important;
  clip:rect(0,0,0,0)!important; white-space:nowrap!important; border:0!important;
}

/* ---------------------------
   2) Top-Grid (Startseite)
   --------------------------- */
.grid{
  display:grid;
  grid-template-columns: var(--sidebar-w) 1fr;  /* Sidebar | Main */
  grid-template-rows: auto 1fr;                 /* Header | Rest */
  grid-template-areas:
    "header header"
    "nav    main";
  min-height:100svh;
  gap: var(--gap);
}

/* ---------------------------
   3) Header / Banner
   --------------------------- */
header{
  grid-area: header;
  position: sticky;
  top: 0;
  z-index: 1000;                 /* Header liegt über Sidebar & Main */
  background: var(--bg);
  border-bottom: 1px solid var(--stroke);
  display:flex;
  justify-content:center;        /* zentriert den Banner-Kasten */
  overflow:hidden;
  box-shadow: 0 2px 0 rgba(0,0,0,.2); /* optische Kante */
}

/* Rahmen steuert Größe, Verhältnis und Zentrierung */
.banner-wrap{
  width: min(1920px, 100%);   /* nie breiter als 1920px */
  aspect-ratio: 1920 / 420;   /* fixes Banner-Verhältnis */
  max-height: var(--banner-max-h);
  min-height: var(--banner-min-h);
  position: relative;
  flex: 0 0 auto;
  background:#0b1220;         /* dunkler Fallback */
  overflow:hidden;
  border-bottom: 0;
}

/* Das <object> füllt den Rahmen und blockiert keine Maus-Events */
.banner-obj{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  pointer-events:none;         /* wichtig: Hover der Sidebar bleibt lebendig */
}

/* Falls noch alte <img class="banner"> existieren – deaktivieren */
.banner{ display:none; }

/* ---------------------------
   4) Sidebar (Frame B)
   --------------------------- */
aside{
  grid-area: nav;
  position: sticky;
  top: var(--header-h);       /* Abstand = Headerhöhe */
  z-index: 2;                 /* unter dem Header bleiben */
  padding: 8px 12px 24px;
  border-right:1px solid var(--stroke);
  background: linear-gradient(180deg,#0c1528 0%, #0b1222 100%);
}

.brand{
  margin: 8px 8px 18px;
  font-weight:800;
  letter-spacing:.06em;
  color: var(--muted);
  text-transform: uppercase;
  font-size:14px;
  opacity:.9;
}

.nav{ display:grid; gap:12px; }

/* ---------------------------
   5) Buttons in Sidebar
   --------------------------- */
.dart-btn{
  --btn-bg:         var(--card);
  --btn-border:     #182238;
  --btn-bg-hover:   linear-gradient(135deg, #1fc464, #118a43);
  --btn-bor-hover:  #0c5f2c;

  position: relative;
  display: grid;
  grid-template-columns: 28px 1fr;    /* Icon | Text */
  grid-template-rows: 22px auto;      /* Titel fix | Sub auto */
  align-items:center;
  gap: 6px 10px;

  height: 60px;                       /* Hitbox */
  padding: 8px 14px 8px 12px;
  border-radius:14px;

  background: var(--btn-bg);
  border:1px solid var(--btn-border);
  color: var(--ink);
  text-decoration:none;

  box-shadow: 0 4px 16px rgba(0,0,0,.25);
  transition: transform .14s ease, box-shadow .14s ease,
              border-color .14s ease, background .14s ease, color .14s ease;
  overflow:hidden;                    /* für Pfeilspitze */
  cursor:pointer;
}

/* Linke Icon-Kachel (über beide Zeilen) */
.dart-btn::before{
  content:"";
  grid-column:1; grid-row:1 / span 2;
  align-self:center; justify-self:center;
  width:22px; height:22px;
  border-radius:4px;
  background: linear-gradient(135deg, #ef4545, #a31919);
  border:1px solid #5e0d0d;
  box-shadow: inset 0 0 0 2px rgba(255,255,255,.08);
}

/* Pfeilspitze rechts (optisch), kein Einfluss auf Grid */
.dart-btn::after{
  content:"";
  position:absolute;
  right:-14px; top:50%; transform:translateY(-50%);
  width:0; height:0;
  border-top: 30px solid transparent;
  border-bottom: 30px solid transparent;
  border-left:14px solid #0f1626;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,.25));
  pointer-events:none;
}

/* Titelzeile */
.dart-btn > span{
  grid-column:2; grid-row:1;
  font-weight:700; letter-spacing:.02em;
  line-height:22px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}

/* Unterzeile */
.dart-btn > small{
  grid-column:2; grid-row:2;
  color: var(--muted); opacity:.9; letter-spacing:.02em; line-height:1.1;
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}

/* Starker Hover-Effekt (Desktop) */
@media (hover:hover){
  .nav .dart-btn:hover,
  .nav .dart-btn:focus-visible{
    background: var(--card);          /* Body bleibt dunkel */
    border-color: #234d2f;
    color: var(--ink);
    box-shadow: 0 6px 22px rgba(0,0,0,.35);
    transform: translateY(-1px);
    text-decoration: none;
  }
  .nav .dart-btn:hover::before,
  .nav .dart-btn:focus-visible::before{
    background: linear-gradient(135deg, #1fc464, #118a43);
    border-color: #0c5f2c;
  }
}

/* Aktiv-Feedback */
.nav .dart-btn:active{
  transform: translateY(0);
  box-shadow: 0 4px 16px rgba(0,0,0,.25);
}

/* Sicherheit: globale a:hover sollen diese Buttons nicht entfärben */
a.dart-btn:hover{ text-decoration:none; }

/* ---------------------------
   6) Main (Frame C)
   --------------------------- */
main{
  grid-area: main;
  padding: 16px min(5vw,40px) 48px;
}

/* Willkommen-Headline */
.welcome{
  margin: 8px 0 18px;
  font-weight:800; letter-spacing:.03em;
  font-size: clamp(22px, 3.2vw, 34px);
}
.lead{ color: var(--muted); max-width: 70ch; }

/* Hero-Block am Seitenanfang leicht vom Sticky-Header entkoppeln */
.page-hero{
  margin-top: 8px;
  position: relative;
  z-index: 1;
}

/* Karten-Grid */
.cards{
  margin-top:24px;
  display:grid;
  grid-template-columns: repeat(12, 1fr);
  gap:16px;
}

.card{
  grid-column: span 12;
  border:1px solid var(--stroke);
  background:#0e1730;
  border-radius:14px;
  padding:16px 18px;
  box-shadow: 0 6px 28px rgba(0,0,0,.25);
}
.card h3{ margin:0 0 6px; font-size:18px; }
.card p{ margin:0; color: var(--muted); }

/* Aufklappbare Karten */
details.card{
  padding:0; overflow:hidden;
}
details.card > summary{
  list-style:none; cursor:pointer;
  padding:16px 18px;
  font-weight:800; letter-spacing:.02em;
  display:flex; align-items:center; gap:10px;
  background:#0f1a34; border-bottom:1px solid var(--stroke);
}
details.card > summary::-webkit-details-marker{ display:none; }
details.card[open] > summary{ background:#102040; }
.card-body{ padding:16px 18px; }

/* Mono-Code */
.mono{
  background:#0d1426;
  border:1px solid #152446;
  border-radius:10px;
  padding:12px 12px 10px;
  overflow:auto;
  font: 13.5px/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  color:#d7e3ff;
  white-space: pre;
}
.codebar{
  display:flex; gap:8px; align-items:center; justify-content:flex-end;
  margin: 0 0 8px;
}
.copy-btn{
  background:#15213a; color:#cfe0ff;
  border:1px solid #233357; border-radius:8px;
  font:12px/1.2 inherit; padding:6px 10px; cursor:pointer;
}
.copy-btn:hover{ background:#1a2c4e; }

/* ---------------------------
   7) Unterseiten / About
   --------------------------- */
.wrap{ margin: 20px auto 64px; width: var(--content-w); }

.breadcrumbs{
  font-size:13px; color: var(--muted); margin: 12px 0 4px;
}
.breadcrumbs a{ color: var(--muted); text-decoration: none; }
.breadcrumbs a:hover{ text-decoration: underline; }

h1{ margin: 6px 0 10px; font-size: clamp(26px, 4.5vw, 38px); letter-spacing:.02em; }
.lead{ color: var(--muted); margin: 0 0 18px; max-width: 75ch; }

section.card h2{ margin:0 0 8px; font-size:20px; }
section.card p{ margin:0 0 12px; color: var(--muted); }
ul{ margin:6px 0 12px 18px; }

.actions{ display:flex; gap:10px; margin-top:16px; flex-wrap:wrap; }
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:10px 14px; border-radius:10px;
  text-decoration:none; color:#fff; border:1px solid #182238;
  background: linear-gradient(135deg, #ef4545, #a31919);
  box-shadow: 0 4px 16px rgba(0,0,0,.25);
}
.btn.secondary{
  background: linear-gradient(135deg, #1fc464, #118a43);
  border-color:#0c5f2c;
}
/* schöner Footer */
.site-footer{
  margin: 36px 0 24px;
  border-top:1px solid var(--stroke);
  color: var(--muted);
  font-size:14px;
   /* NEU: seitlicher Abstand wie im Main */
  padding-inline: min(5vw, 40px);
}
.site-footer .footer-inner{
  padding-top:14px;
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:16px;
}
.site-footer .footer-note{
  max-width:65ch;
}
.site-footer .footer-right{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
}
.site-footer .footer-copy{
  margin:0;               /* sorgt dafür, dass die ©-Zeile sicher sichtbar ist */
  color: var(--muted);
}
.site-footer .footer-links a{
  color: var(--ink);
  opacity:.85;
  text-decoration:none;
  border-bottom:1px dashed transparent;
}
.site-footer .footer-links a:hover{
  opacity:1;
  text-decoration:underline;
}

/* Fallback: falls jemand wieder nackte Block-Elemente in den Footer wirft */
.site-footer > * + * { margin-top:8px; }

/* Mobil freundlich stacken */
@media (max-width: 980px){
  .site-footer .footer-inner{
    flex-direction:column;
    align-items:stretch;
    gap:10px;
  }
  .site-footer .footer-right{
    justify-content:space-between;
  }
}


/* ---------------------------
   8) Docs-TOC (lokale Navigation links im Content-Bereich)
   --------------------------- */
.docs-toc-sticky{
  position: sticky;
  top: var(--header-h);
  align-self: start;
}

/* ---------------------------
   9) Responsive Umschaltung
   --------------------------- */
@media (max-width: 980px){
  .grid{
    grid-template-columns: 1fr;
    grid-template-rows: auto auto 1fr;
    grid-template-areas:
      "header"
      "nav"
      "main";
  }
  aside{
    border-right:none;
    border-bottom:1px solid var(--stroke);
  }
  .dart-btn{ height:64px; }
  .dart-btn::after{ display:none; } /* Pfeilspitze ausblenden */

  .reveal { opacity: 0; transform: translateY(8px); transition: opacity .4s ease, transform .4s ease; }
  .reveal.on { opacity: 1; transform: translateY(0); }

  .kpis{ display:flex; gap:12px; margin:10px 0 6px; flex-wrap:wrap; }
  .kpi{ display:flex; align-items:center; gap:8px; padding:6px 10px; border-radius:10px;
        background:#0f1a34; border:1px solid var(--stroke); }
  .kpi strong{ letter-spacing:.02em; }
  .kpi span{ color: var(--muted); }
}  /* <= Mobile-Block HIER schließen */

/* ===== SAGITTA-Intro: sanfte Animationen, ohne JS ===== */
#sagitta-intro details.card > .card-summary {
  position: relative;
  display: block;          /* stapelt .lead und .more */
  font-weight: 400;        /* Teaser NICHT fett (überstimmt summary{font-weight:800}) */
}
#sagitta-intro details.card > .card-summary .lead {
  display: block;
  font-weight: 400;
}

/* Chevron rechts am Summary */
#sagitta-intro details.card > .card-summary::after {
  content: "▾";
  position: absolute;
  right: 0;
  top: 0;
  line-height: 1.1;
  opacity: .7;
  transition: transform .18s ease, opacity .18s ease;
}
#sagitta-intro details[open] > .card-summary::after {
  transform: rotate(-180deg);
  opacity: .6;
}

/* „… weiterlesen“ sanft ausblenden beim Aufklappen */
#sagitta-intro details.card > .card-summary .more {
  display: block;
  margin-top: 6px;
  opacity: .85;
  font-size: .9em;
  transition: opacity .18s ease, transform .18s ease;
}
#sagitta-intro details[open] > .card-summary .more {
  opacity: 0;
  transform: translateY(-4px);
}

/* Inhalt beim Öffnen dezent einblenden */
@keyframes sagittaFadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}
#sagitta-intro details[open] > .card-body {
  animation: sagittaFadeIn .22s ease-out both;
}

/* Tastatur-Fokus sichtbar (nur Summary) */
#sagitta-intro details.card > .card-summary:focus {
  outline: 2px solid #2b8cff;
  outline-offset: 3px;
  border-radius: 8px;
}

/* Respektiere „Bewegung reduzieren“ – GLOBAL (nicht nur mobil) */
@media (prefers-reduced-motion: reduce) {
  #sagitta-intro details.card > .card-summary::after,
  #sagitta-intro details.card > .card-summary .more,
  #sagitta-intro details[open] > .card-body {
    transition: none !important;
    animation: none !important;
  }
}
/* --- Fix: Erste Zeilen sollen nie unter den Sticky-Header rutschen --- */

/* Breadcrumbs + Hero direkt unter dem Header etwas absetzen */
.grid > main > .breadcrumbs:first-child{
  /* extra Abstand, unabhängig vom Grid-Gap */
  margin-top: calc(var(--gap) * 0.5);
}

.grid > main > .page-hero{
  /* leicht entkoppeln vom Banner */
  margin-top: 10px;          /* war 8px – minimal größer */
  position: relative;
  z-index: 1;
}

/* Falls du irgendwo direkt mit Ankern auf H2/H3 springst */
:target{
  scroll-margin-top: calc(var(--header-h) + 12px);
}

/* Docs-Layout: lokale TOC klebt brav unter dem Banner */
.docs-toc-sticky{
  position: sticky;
  top: var(--header-h);
  align-self: start;
}