/* ============================================================
   ENDLICH FEIERABEND — Unified Design System  ("Dämmerung")
   Single source of truth for the whole website.
   ============================================================ */

/* ---------- Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,600;12..96,700;12..96,800&family=IBM+Plex+Mono:wght@500;600&family=IBM+Plex+Sans:wght@400;500;600;700&display=swap');

/* ---------- Tokens ---------- */
:root{
  /* Brand */
  --ink:#0B2240;          /* Nacht-Blau — primary */
  --ink-2:#0D3A6B;        /* gradient partner */
  --ink-deep:#081A31;     /* footers / deepest */
  --gruen:#1A6B3C;        /* action / positive */
  --gruen-deep:#155A32;
  --gruen-tint:#E7F1EA;
  --amber:#CE8A2C;        /* Abendgold — spark only */
  --amber-soft:#F6ECDB;
  --rot:#CC1A1A;          /* negative only */
  --rot-tint:#FBE9E9;

  /* Neutrals (warm) */
  --paper:#FAF7F1;        /* page background */
  --paper-2:#F1EBDF;      /* alt sections / bubbles */
  --surface:#FFFFFF;      /* cards */
  --line:#E7DFCF;         /* borders */
  --line-strong:#D8CEB9;

  /* Text */
  --text:#1B2430;
  --text-soft:#5A6573;
  --on-dark:#EAF1F8;
  --on-dark-soft:rgba(234,241,248,.74);
  --on-dark-line:rgba(234,241,248,.16);

  /* Type */
  --display:'Bricolage Grotesque', system-ui, sans-serif;
  --body:'IBM Plex Sans', system-ui, sans-serif;
  --mono:'IBM Plex Mono', ui-monospace, monospace;

  /* Radius & shadow */
  --r-sm:8px; --r:12px; --r-lg:20px; --r-pill:999px;
  --shadow-sm:0 1px 2px rgba(11,34,64,.05), 0 2px 8px rgba(11,34,64,.05);
  --shadow:0 4px 14px rgba(11,34,64,.08), 0 18px 44px rgba(11,34,64,.08);
  --shadow-lg:0 24px 70px rgba(11,34,64,.16);

  /* Layout */
  --maxw:1160px;
  --gut:24px;
}

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

html{scroll-behavior:smooth;}

body{
  font-family:var(--body);
  background:var(--paper);
  color:var(--text);
  line-height:1.7;
  font-size:18px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

/* subtle dusk grain/glow on page bg */
body::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(900px 520px at 88% -10%, rgba(206,138,44,.07), transparent 60%),
    radial-gradient(1000px 600px at -5% 0%, rgba(13,58,107,.05), transparent 55%);
}

img{max-width:100%;display:block;}
a{color:inherit;}

/* ---------- Typography ---------- */
h1,h2,h3{font-family:var(--display);font-weight:800;line-height:1.06;letter-spacing:-.02em;color:var(--ink);}
h1{font-size:clamp(40px,6vw,66px);}
h2{font-size:clamp(30px,4.2vw,46px);font-weight:800;}
h3{font-size:clamp(22px,2.4vw,28px);font-weight:700;letter-spacing:-.015em;}
h4{font-family:var(--display);font-size:20px;font-weight:700;color:var(--ink);letter-spacing:-.01em;}
p{text-wrap:pretty;}

.display-xl{font-size:clamp(46px,7vw,84px);line-height:1.02;}
em,.amber-mark{font-style:normal;color:var(--ink);
  background-image:linear-gradient(transparent 62%, rgba(206,138,44,.34) 62%);
  background-repeat:no-repeat;
}
.text-amber{color:var(--amber);}
.text-gruen{color:var(--gruen);}

.eyebrow{
  font-family:var(--mono);font-weight:600;font-size:13px;
  text-transform:uppercase;letter-spacing:.16em;color:var(--gruen);
  display:inline-flex;align-items:center;gap:9px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--amber);border-radius:2px;}
.eyebrow.on-dark{color:var(--amber);}
.eyebrow.on-dark::before{background:var(--amber);}

.lead{font-size:clamp(19px,2.2vw,22px);line-height:1.6;color:var(--text-soft);}
.muted{color:var(--text-soft);}

/* ---------- Layout helpers ---------- */
.container{max-width:var(--maxw);margin:0 auto;padding:0 var(--gut);}
.container-narrow{max-width:780px;margin:0 auto;padding:0 var(--gut);}
.section{padding:92px 0;}
.section-sm{padding:64px 0;}
.section--paper2{background:var(--paper-2);}
.section--dark{
  background:linear-gradient(155deg, var(--ink) 0%, var(--ink-2) 100%);
  color:var(--on-dark);position:relative;overflow:hidden;
}
.section--dark::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle, rgba(206,138,44,.22), transparent 62%);pointer-events:none;
}
.section--dark h1,.section--dark h2,.section--dark h3,.section--dark h4{color:#fff;}
.section--dark .lead,.section--dark .muted{color:var(--on-dark-soft);}

.section-head{max-width:720px;margin-bottom:54px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head p{margin-top:16px;}

/* ---------- Navigation ---------- */
.ef-nav{position:sticky;top:0;z-index:100;background:rgba(250,247,241,.86);
  backdrop-filter:saturate(140%) blur(12px);border-bottom:1px solid var(--line);}
.ef-nav__in{max-width:var(--maxw);margin:0 auto;padding:0 var(--gut);height:72px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;}
.ef-logo{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink);}
.ef-logo img{height:34px;width:auto;}
.ef-logo__wm{font-family:var(--display);font-weight:800;font-size:19px;letter-spacing:-.02em;line-height:1;}
.ef-logo__wm small{display:block;font-family:var(--mono);font-weight:500;font-size:9.5px;
  letter-spacing:.22em;text-transform:uppercase;color:var(--text-soft);margin-top:3px;}
.ef-nav__menu{display:flex;gap:30px;list-style:none;align-items:center;}
.ef-nav__menu a{text-decoration:none;color:var(--text);font-weight:500;font-size:15.5px;
  position:relative;padding:4px 0;transition:color .2s;}
.ef-nav__menu a:hover{color:var(--ink);}
.ef-nav__menu a.active{color:var(--ink);}
.ef-nav__menu a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--amber);border-radius:2px;}
.ef-nav__right{display:flex;align-items:center;gap:16px;}
.ef-burger{display:none;background:none;border:none;cursor:pointer;color:var(--ink);padding:6px;}
.ef-burger svg{width:26px;height:26px;}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--body);font-weight:600;
  font-size:16px;line-height:1;text-decoration:none;cursor:pointer;border:1.5px solid transparent;
  padding:15px 26px;border-radius:var(--r-pill);transition:transform .18s, box-shadow .18s, background .18s, border-color .18s;}
.btn svg{width:18px;height:18px;}
.btn--primary{background:var(--gruen);color:#fff;box-shadow:0 6px 18px rgba(26,107,60,.26);}
.btn--primary:hover{background:var(--gruen-deep);transform:translateY(-2px);box-shadow:0 10px 26px rgba(26,107,60,.34);}
.btn--ink{background:var(--ink);color:#fff;}
.btn--ink:hover{background:var(--ink-2);transform:translateY(-2px);}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line-strong);}
.btn--ghost:hover{border-color:var(--ink);background:rgba(11,34,64,.04);}
.btn--on-dark{background:rgba(255,255,255,.10);color:#fff;border-color:var(--on-dark-line);}
.btn--on-dark:hover{background:rgba(255,255,255,.18);transform:translateY(-2px);}
.btn--lg{padding:18px 34px;font-size:17px;}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;}
.btn-row.center{justify-content:center;}

/* ---------- Cards ---------- */
.grid{display:grid;gap:24px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:34px 30px;box-shadow:var(--shadow-sm);transition:transform .25s, box-shadow .25s, border-color .25s;}
.card--hover:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong);}
.card h3{margin-bottom:10px;}
.card p{color:var(--text-soft);font-size:16px;line-height:1.65;}
.card--dark{background:rgba(255,255,255,.05);border-color:var(--on-dark-line);}
.card--dark p{color:var(--on-dark-soft);}

.card-link{display:inline-flex;align-items:center;gap:7px;color:var(--gruen);font-weight:600;
  font-size:15px;text-decoration:none;margin-top:18px;transition:gap .2s;}
.card-link:hover{gap:12px;}
.card-link svg{width:16px;height:16px;}

/* index marker (mono numeral) */
.idx{font-family:var(--mono);font-weight:600;font-size:13px;color:var(--amber);
  letter-spacing:.1em;margin-bottom:14px;display:block;}

/* round number badge */
.num{width:46px;height:46px;border-radius:50%;background:var(--gruen);color:#fff;
  font-family:var(--display);font-weight:700;font-size:20px;display:flex;align-items:center;
  justify-content:center;flex-shrink:0;}

/* ---------- Stats ---------- */
.stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;}
.stat{text-align:center;}
.stat .n{font-family:var(--display);font-weight:800;font-size:clamp(34px,4vw,50px);
  color:var(--ink);line-height:1;letter-spacing:-.02em;}
.section--dark .stat .n{color:#fff;}
.stat .n .u{color:var(--amber);}
.stat .l{font-family:var(--mono);font-size:12.5px;text-transform:uppercase;letter-spacing:.1em;
  color:var(--text-soft);margin-top:12px;}
.section--dark .stat .l{color:var(--on-dark-soft);}

/* ---------- Check / tick lists ---------- */
.ticks{list-style:none;display:flex;flex-direction:column;gap:14px;}
.ticks li{display:flex;gap:13px;align-items:flex-start;font-size:17px;}
.tick{flex-shrink:0;width:24px;height:24px;border-radius:50%;background:var(--gruen-tint);
  display:flex;align-items:center;justify-content:center;margin-top:2px;}
.tick svg{width:13px;height:13px;color:var(--gruen);}
.section--dark .tick{background:rgba(26,107,60,.28);}
.section--dark .tick svg{color:#7BE0A4;}

/* ---------- Tags / badges ---------- */
.tag{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-weight:600;
  font-size:11.5px;text-transform:uppercase;letter-spacing:.08em;padding:6px 12px;border-radius:var(--r-pill);}
.tag--gruen{background:var(--gruen-tint);color:var(--gruen-deep);}
.tag--amber{background:var(--amber-soft);color:#9A6418;}
.tag--ink{background:rgba(11,34,64,.07);color:var(--ink);}
.tag--rot{background:var(--rot-tint);color:var(--rot);}
.badge{position:absolute;top:-12px;right:18px;background:var(--amber);color:#fff;
  font-family:var(--mono);font-weight:600;font-size:11px;letter-spacing:.06em;text-transform:uppercase;
  padding:6px 13px;border-radius:var(--r-pill);box-shadow:0 6px 16px rgba(206,138,44,.4);}

/* ---------- Prompt bubble (mono) ---------- */
.prompt{background:var(--paper-2);border:1px solid var(--line);border-left:4px solid var(--ink);
  border-radius:var(--r);padding:18px 20px;font-family:var(--mono);font-size:14px;line-height:1.6;color:var(--text);}
.prompt--bad{border-left-color:var(--rot);}
.prompt--good{border-left-color:var(--gruen);}
.prompt .lbl{display:block;font-weight:600;font-size:11px;text-transform:uppercase;letter-spacing:.1em;
  margin-bottom:8px;color:var(--text-soft);}

/* ---------- Footer ---------- */
.ef-footer{background:var(--ink-deep);color:var(--on-dark-soft);padding:64px 0 32px;}
.ef-footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;margin-bottom:44px;}
.ef-footer h4{color:#fff;font-family:var(--display);font-size:17px;margin-bottom:16px;}
.ef-footer p{font-size:15px;line-height:1.7;margin-bottom:12px;}
.ef-footer a{color:var(--on-dark-soft);text-decoration:none;transition:color .2s;}
.ef-footer a:hover{color:var(--amber);}
.ef-footer__links{list-style:none;}
.ef-footer__links li{margin-bottom:11px;}
.ef-footer__links a{font-size:15px;}
.ef-footer__brand{display:flex;align-items:center;gap:11px;margin-bottom:18px;}
.ef-footer__brand img{height:30px;}
.ef-footer__brand .ef-logo__wm{color:#fff;}
.ef-footer__bottom{border-top:1px solid var(--on-dark-line);padding-top:26px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:13.5px;}
.ig{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:13px;letter-spacing:.04em;}

/* ---------- Misc ---------- */
.divider{height:1px;background:var(--line);border:0;margin:0;}
.kicker-rule{width:54px;height:3px;background:var(--amber);border-radius:3px;margin-bottom:26px;}
.eyebrow + h1, .eyebrow + h2{margin-top:0;}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:36px 20px;}
  .ef-footer__grid{grid-template-columns:1fr;gap:34px;}
}
@media (max-width:680px){
  body{font-size:17px;}
  .section{padding:64px 0;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .ef-nav__menu{position:absolute;top:72px;left:0;right:0;flex-direction:column;align-items:flex-start;
    background:var(--paper);border-bottom:1px solid var(--line);padding:18px var(--gut);gap:18px;
    box-shadow:var(--shadow);display:none;}
  .ef-nav__menu.open{display:flex;}
  .ef-burger{display:inline-flex;}
  .ef-footer__bottom{flex-direction:column;align-items:flex-start;}
}