/* Netzwerk Thun – gemeinsame Gestaltung (Design-System «Netzwerk Thun», tokens.json v4)
   Layout: ein Grundton, aus dem weiche Flächen geformt sind; Knöpfe voll blau, Bedienbares mit Rand. */
:root {
  --surface: #e6eaf0;
  --schatten-hell: #ffffff;
  --schatten-dunkel: #b7bfcc;
  --ink: #1a1f26;
  --ink-muted: #475060;
  --blau: #1f4f9c;
  --on-blau: #ffffff;
  --blau-tint: #cfdbee;
  --akzent: #a8431b;
  --gruen: #256340;
  --linie: #78818f;
  --neu-raised: 8px 8px 16px #b7bfcc, -8px -8px 16px #ffffff;
  --neu-raised-sm: 4px 4px 8px #b7bfcc, -4px -4px 8px #ffffff;
  --neu-inset: inset 4px 4px 8px #b7bfcc, inset -4px -4px 8px #ffffff;

  --font-sans: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --space-1: 8px; --space-2: 16px; --space-3: 24px; --space-5: 40px;
  --radius-md: 16px; --radius-lg: 24px; --radius-full: 999px;
  --section: clamp(64px, 8vw, 112px);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --surface: #23272d; --schatten-hell: #2e333b; --schatten-dunkel: #15181c;
    --ink: #eef1f5; --ink-muted: #b3bac4; --blau: #86aef0; --on-blau: #10141a;
    --blau-tint: #33445f; --akzent: #f08a5d; --gruen: #7cc596; --linie: #7a8391;
    --neu-raised: 8px 8px 16px #15181c, -8px -8px 16px #2e333b;
    --neu-raised-sm: 4px 4px 8px #15181c, -4px -4px 8px #2e333b;
    --neu-inset: inset 4px 4px 8px #15181c, inset -4px -4px 8px #2e333b;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --surface: #23272d; --schatten-hell: #2e333b; --schatten-dunkel: #15181c;
  --ink: #eef1f5; --ink-muted: #b3bac4; --blau: #86aef0; --on-blau: #10141a;
  --blau-tint: #33445f; --akzent: #f08a5d; --gruen: #7cc596; --linie: #7a8391;
  --neu-raised: 8px 8px 16px #15181c, -8px -8px 16px #2e333b;
  --neu-raised-sm: 4px 4px 8px #15181c, -4px -4px 8px #2e333b;
  --neu-inset: inset 4px 4px 8px #15181c, inset -4px -4px 8px #2e333b;
  color-scheme: dark;
}

* { box-sizing: border-box; }
/* «hidden» gewinnt immer, auch gegen display:grid/flex einzelner Komponenten */
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--surface); color: var(--ink); font: 400 19px/29px var(--font-sans); -webkit-font-smoothing: antialiased; }
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 30; background: var(--surface); }
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
h1, h2, h3 { font-weight: 700; text-wrap: balance; }
a { color: var(--blau); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--blau); outline-offset: 3px; border-radius: 8px; }
svg.i { width: 24px; height: 24px; flex: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.vh { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.wrap { padding-left: max(16px, env(safe-area-inset-left, 0px), 4vw); padding-right: max(16px, env(safe-area-inset-right, 0px), 4vw); }
.inner { max-width: 1180px; margin-inline: auto; }
.sec { padding-block: var(--section) 0; }
section { scroll-margin-top: 96px; }
.sec-head { max-width: 680px; margin-bottom: var(--space-5); display: grid; gap: var(--space-2); }
.sec-head h2 { font-size: 34px; line-height: 40px; letter-spacing: -.01em; }
.sec-head p { font-size: 21px; line-height: 32px; color: var(--ink-muted); }
.measure { max-width: 65ch; }

/* Flächen */
.card { background: var(--surface); border-radius: var(--radius-lg); box-shadow: var(--neu-raised); padding: var(--space-3); min-width: 0; }
.tint { background: var(--blau-tint); border: 2px solid var(--linie); border-radius: var(--radius-md); padding: var(--space-2) var(--space-3); }
.saving { color: var(--gruen); font-weight: 700; }

/* Knöpfe */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-1); min-height: 56px; padding: 0 var(--space-3);
  border-radius: var(--radius-md); font: 700 20px/24px var(--font-sans); text-decoration: none; cursor: pointer; border: 2px solid transparent; }
.btn-primary { background: var(--blau); color: var(--on-blau); box-shadow: var(--neu-raised-sm); }
.btn-primary:active { box-shadow: var(--neu-inset); }
.btn-second { background: var(--surface); color: var(--ink); border-color: var(--linie); box-shadow: var(--neu-raised-sm); }
.btn-second:active { box-shadow: var(--neu-inset); }
.btn .i { width: 22px; height: 22px; }
.btn-block { width: 100%; }

.tel { color: var(--akzent); font: 700 20px/24px var(--font-sans); text-decoration: none; white-space: nowrap; display: inline-flex; align-items: center; gap: var(--space-1); }
.tel .i { width: 22px; height: 22px; }
.mail-link { font-size: 17px; text-decoration: underline; text-underline-offset: 3px; }

/* Platzhalter: vor dem Livegang ersetzen */
.ph { outline: 2px dashed var(--akzent); outline-offset: 2px; border-radius: 4px; }

/* Kopfzeile */
.top { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; background: var(--surface); box-shadow: 0 6px 12px -8px var(--schatten-dunkel); }
.top .inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); min-height: 80px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; font-weight: 700; font-size: 22px; letter-spacing: -.01em; }
.mark { width: 44px; height: 44px; border-radius: var(--radius-full); background: var(--surface); box-shadow: var(--neu-raised-sm); display: grid; place-items: center; color: var(--blau); flex: none; }
.mark svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 2.6; stroke-linecap: round; }
.menu { display: flex; align-items: center; gap: var(--space-3); }
.menu a:not(.tel) { color: var(--ink); font-size: 17px; font-weight: 700; }

/* Fusszeile */
footer { padding-block: var(--space-5); margin-top: var(--section); color: var(--ink-muted); font-size: 17px; line-height: 26px; }
footer .cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--space-3); }
footer h3 { font-size: 17px; color: var(--ink); margin-bottom: var(--space-1); }
footer ul { list-style: none; padding: 0; display: grid; gap: 6px; }
footer a { color: var(--ink-muted); }
footer .legal { margin-top: var(--space-5); padding-top: var(--space-3); border-top: 2px solid var(--schatten-dunkel); display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-2); }

/* Rechtstexte */
.doc { padding-block: var(--space-5) 0; }
.doc .card { max-width: 820px; padding: clamp(24px, 4vw, 48px); display: grid; gap: var(--space-3); }
.doc h1 { font-size: 34px; line-height: 40px; letter-spacing: -.01em; }
.doc h2 { font-size: 25px; line-height: 32px; margin-top: var(--space-2); }
.doc p, .doc li { max-width: 65ch; }
.doc ul { padding-left: 1.2em; display: grid; gap: 6px; }
.doc dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px var(--space-3); }
.doc dt { font-weight: 700; }
.doc .meta { color: var(--ink-muted); font-size: 17px; line-height: 26px; }
.back { display: inline-flex; gap: var(--space-1); align-items: center; font-weight: 700; }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }
@media (max-width: 960px) { .menu a:not(.tel):not(.btn) { display: none; } footer .cols { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) {
  footer .cols { grid-template-columns: 1fr; }
  .doc dl { grid-template-columns: 1fr; }
  .doc dd { margin-bottom: var(--space-1); }
  .top .btn { display: none; }
  .mail-link { display: none; }
}