/* =========================================================================
   Feuerwehr Online Akademie — Design System
   Token-basiertes, barrierefreies Design (Light & Dark), Feuerwehr-Farbwelt
   ========================================================================= */

:root {
  /* Brand — DIN 14502 Feuerrot inspiriert */
  --fw-red:        #d81f26;
  --fw-red-600:    #b71a20;
  --fw-red-700:    #931116;
  --fw-red-50:     #fdecec;
  --fw-anthracite: #1c2128;
  --fw-blue:       #1e5fa8;   /* Blaulicht-Akzent */
  --fw-amber:      #f5a623;
  --fw-green:      #2e9e5b;

  /* Semantische Flächen (Light) */
  --bg:            #f5f6f8;
  --bg-elevated:   #ffffff;
  --bg-sunken:     #eceef1;
  --surface:       #ffffff;
  --surface-2:     #f7f8fa;
  --border:        #e2e5ea;
  --border-strong: #cfd4dc;

  /* Text */
  --text:          #10151c;
  --text-muted:    #556070;
  --text-subtle:   #808a99;
  --text-on-brand: #ffffff;

  /* Status */
  --ok:            #2e9e5b;
  --ok-bg:         #e7f6ee;
  --warn:          #d98a00;
  --warn-bg:       #fbf1dc;
  --danger:        #d81f26;
  --danger-bg:     #fdecec;
  --info:          #1e5fa8;
  --info-bg:       #e6effa;

  /* Radius & Elevation */
  --r-xs: 6px;  --r-sm: 10px; --r-md: 14px; --r-lg: 20px; --r-xl: 28px; --r-full: 999px;
  --shadow-1: 0 1px 2px rgba(16,21,28,.06), 0 1px 3px rgba(16,21,28,.05);
  --shadow-2: 0 4px 12px rgba(16,21,28,.08), 0 2px 4px rgba(16,21,28,.04);
  --shadow-3: 0 12px 32px rgba(16,21,28,.12), 0 4px 8px rgba(16,21,28,.06);
  --shadow-glow: 0 0 0 4px rgba(216,31,38,.14);

  /* Typografie */
  --font: "Inter", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --fs-xs: .75rem; --fs-sm: .875rem; --fs-md: 1rem; --fs-lg: 1.125rem;
  --fs-xl: 1.375rem; --fs-2xl: 1.75rem; --fs-3xl: 2.25rem; --fs-4xl: 3rem;

  /* Layout */
  --nav-w: 268px;
  --header-h: 64px;
  --maxw: 1180px;
  --gap: 20px;

  --transition: 180ms cubic-bezier(.4,0,.2,1);
  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg:            #0d1117;
  --bg-elevated:   #161b22;
  --bg-sunken:     #0a0d12;
  --surface:       #161b22;
  --surface-2:     #1c232d;
  --border:        #262d38;
  --border-strong: #38414f;
  --text:          #e9edf2;
  --text-muted:    #9aa6b4;
  --text-subtle:   #6b7684;
  --fw-red:        #ff4d54;
  --fw-red-50:     #2a1618;
  --ok-bg:         #12251b;
  --warn-bg:       #2a2110;
  --danger-bg:     #2a1618;
  --info-bg:       #12202f;
  --shadow-1: 0 1px 2px rgba(0,0,0,.4);
  --shadow-2: 0 6px 18px rgba(0,0,0,.45);
  --shadow-3: 0 18px 44px rgba(0,0,0,.6);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: var(--fs-md);
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1,h2,h3,h4 { line-height: 1.2; font-weight: 700; letter-spacing: -.01em; margin: 0 0 .5em; }
h1 { font-size: var(--fs-3xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-xl); }
p { margin: 0 0 1em; }
a { color: var(--fw-blue); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
:focus-visible { outline: 3px solid var(--fw-red); outline-offset: 2px; border-radius: 4px; }

::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 999px; border: 3px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: var(--text-subtle); background-clip: content-box; }

/* ------- Utilities ------- */
.container { max-width: var(--maxw); margin-inline: auto; padding-inline: clamp(16px, 4vw, 32px); }
.stack > * + * { margin-top: var(--gap); }
.muted { color: var(--text-muted); }
.subtle { color: var(--text-subtle); }
.center { text-align: center; }
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.mono { font-family: var(--font-mono); }
.grid { display: grid; gap: var(--gap); }
.flex { display: flex; }
.between { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.wrap { flex-wrap: wrap; }
.gap-sm { gap: 8px; } .gap-md { gap: 16px; }

/* ------- Buttons ------- */
.btn {
  --btn-bg: var(--surface); --btn-fg: var(--text); --btn-bd: var(--border-strong);
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: inherit; font-weight: 600; font-size: var(--fs-sm);
  padding: 10px 18px; border-radius: var(--r-full);
  background: var(--btn-bg); color: var(--btn-fg);
  border: 1.5px solid var(--btn-bd); cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
  text-decoration: none; white-space: nowrap; user-select: none;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-2); text-decoration: none; }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; box-shadow: none; }
.btn--primary { --btn-bg: var(--fw-red); --btn-fg: #fff; --btn-bd: var(--fw-red); }
.btn--primary:hover { --btn-bg: var(--fw-red-600); box-shadow: var(--shadow-glow); }
.btn--ghost { --btn-bg: transparent; --btn-bd: transparent; }
.btn--outline { --btn-bg: transparent; }
.btn--sm { padding: 6px 12px; font-size: var(--fs-xs); }
.btn--lg { padding: 14px 26px; font-size: var(--fs-md); }
.btn--block { width: 100%; }
.btn--danger { --btn-bg: transparent; --btn-fg: var(--danger); --btn-bd: var(--danger); }

/* ------- Cards ------- */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); box-shadow: var(--shadow-1);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.card--pad { padding: clamp(18px, 3vw, 28px); }
.card--interactive { cursor: pointer; }
.card--interactive:hover { box-shadow: var(--shadow-3); transform: translateY(-3px); border-color: var(--border-strong); }

/* ------- Badges / Chips ------- */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: var(--fs-xs); font-weight: 700; letter-spacing: .02em;
  padding: 3px 10px; border-radius: var(--r-full);
  background: var(--surface-2); color: var(--text-muted); border: 1px solid var(--border);
}
.badge--red   { background: var(--danger-bg); color: var(--danger); border-color: transparent; }
.badge--green { background: var(--ok-bg); color: var(--ok); border-color: transparent; }
.badge--amber { background: var(--warn-bg); color: var(--warn); border-color: transparent; }
.badge--blue  { background: var(--info-bg); color: var(--info); border-color: transparent; }
.badge--dot::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

.chip {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  font-size: var(--fs-sm); font-weight: 600; padding: 7px 14px;
  border-radius: var(--r-full); background: var(--surface); border: 1.5px solid var(--border);
  color: var(--text-muted); transition: all var(--transition); white-space: nowrap;
}
.chip:hover { border-color: var(--fw-red); color: var(--text); }
.chip[aria-pressed="true"] { background: var(--fw-red); color: #fff; border-color: var(--fw-red); }

/* ------- Progress ------- */
.progress { height: 8px; border-radius: 999px; background: var(--bg-sunken); overflow: hidden; }
.progress > i { display: block; height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--fw-red), var(--fw-amber)); transition: width .6s cubic-bezier(.4,0,.2,1); }
.progress--green > i { background: linear-gradient(90deg, var(--ok), #7bd39b); }

.ring { --p: 0; --sz: 116px; width: var(--sz); height: var(--sz); position: relative; display: grid; place-items: center; }
.ring::before {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  background: conic-gradient(var(--fw-red) calc(var(--p) * 1%), var(--bg-sunken) 0);
  mask: radial-gradient(farthest-side, transparent calc(50% - 11px), #000 calc(50% - 10px));
  -webkit-mask: radial-gradient(farthest-side, transparent calc(50% - 11px), #000 calc(50% - 10px));
  transition: background .8s cubic-bezier(.4,0,.2,1);
}
.ring b { font-size: var(--fs-xl); font-weight: 800; }
.ring small { color: var(--text-muted); font-size: var(--fs-xs); }

/* ------- Callouts ------- */
.callout { border-radius: var(--r-md); padding: 14px 16px 14px 18px; border-left: 4px solid var(--info); background: var(--info-bg); margin: 1em 0; }
.callout--warn   { border-color: var(--warn); background: var(--warn-bg); }
.callout--danger { border-color: var(--danger); background: var(--danger-bg); }
.callout--ok     { border-color: var(--ok); background: var(--ok-bg); }
.callout--tip    { border-color: var(--fw-amber); background: var(--warn-bg); }
.callout__t { font-weight: 800; display: flex; align-items: center; gap: 8px; margin-bottom: 4px; }
.callout p:last-child { margin-bottom: 0; }

/* ------- Forms ------- */
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-weight: 600; font-size: var(--fs-sm); }
.input, .select {
  font: inherit; padding: 11px 14px; border-radius: var(--r-sm);
  border: 1.5px solid var(--border-strong); background: var(--surface); color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition); width: 100%;
}
.input:focus, .select:focus { outline: none; border-color: var(--fw-red); box-shadow: var(--shadow-glow); }

/* ------- Table ------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--r-md); }
table.data { width: 100%; border-collapse: collapse; font-size: var(--fs-sm); }
table.data th, table.data td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--border); }
table.data th { background: var(--surface-2); font-weight: 700; }
table.data tr:last-child td { border-bottom: none; }

/* ------- Skeleton / anim ------- */
@keyframes fadeUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.fade-up { animation: fadeUp .4s cubic-bezier(.4,0,.2,1) both; }
@keyframes pop { 0%{transform:scale(.9);opacity:0} 60%{transform:scale(1.03)} 100%{transform:scale(1);opacity:1} }
.pop { animation: pop .35s cubic-bezier(.34,1.56,.64,1) both; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}