/* ============================================================
   koubon — Marketing-Site (koubon.de), statisch.
   Eigenständiges Stylesheet (Marken-Tokens + Fonts + Marketing-
   Komponenten). Bewusst getrennt von der App (koubon.app), damit
   die Marketing-Seite normal scrollt (Footer am Seitenende).
   ============================================================ */

/* Self-hosted Marken-Schriften (SIL OFL) — DSGVO-konform, nicht von Google. */
@font-face { font-family: 'Hanken Grotesk'; font-style: normal; font-weight: 100 900; font-display: swap; src: url('fonts/hanken-grotesk-wght.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Sans'; font-style: normal; font-weight: 100 700; font-display: swap; src: url('fonts/ibm-plex-sans-wght.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 400; font-display: swap; src: url('fonts/ibm-plex-mono-400.woff2') format('woff2'); }
@font-face { font-family: 'IBM Plex Mono'; font-style: normal; font-weight: 500; font-display: swap; src: url('fonts/ibm-plex-mono-500.woff2') format('woff2'); }

:root {
    --kb-font-display: 'Hanken Grotesk', 'Segoe UI', system-ui, -apple-system, sans-serif;
    --kb-font-body: 'IBM Plex Sans', 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --kb-font-mono: 'IBM Plex Mono', 'SF Mono', ui-monospace, Consolas, monospace;

    --kb-bg: #FBF5F1;
    --kb-surface: #FFFFFF;
    --kb-surface-2: #FBECE7;
    --kb-ink: #241820;
    --kb-muted: #7C6771;
    --kb-line: #EDDCD6;
    --kb-primary: #D2286A;
    --kb-primary-strong: #B01E58;
    --kb-on-primary: #FFFFFF;
    --kb-accent: #EFA637;
    --kb-success: #1F9D6B;
    --kb-success-tint: #E4F4EC;
    --kb-accent-tint: #FBEED6;
    --kb-muted-tint: #F0E7E4;
    --kb-primary-tint: #FBECF2;
    --kb-shadow: 0 1px 2px rgba(36,24,32,.06), 0 18px 40px -18px rgba(176,30,88,.28);
}

@media (prefers-color-scheme: dark) {
    :root {
        --kb-bg: #140F16; --kb-surface: #1E1720; --kb-surface-2: #271E2A;
        --kb-ink: #F6EEF1; --kb-muted: #B49FAA; --kb-line: #372B3A;
        --kb-primary: #F0538A; --kb-primary-strong: #F86E9C; --kb-on-primary: #2A0E1B;
        --kb-accent: #F5B841; --kb-success: #35C08A; --kb-success-tint: #143026;
        --kb-accent-tint: #34260F; --kb-muted-tint: #2A2130; --kb-primary-tint: #3A1526;
        --kb-shadow: 0 1px 2px rgba(0,0,0,.4), 0 18px 44px -18px rgba(0,0,0,.65);
    }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--kb-bg); color: var(--kb-ink); font-family: var(--kb-font-body); line-height: 1.55; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; }

/* ---- nav (sticky) ---- */
.kb-nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px clamp(16px,4vw,44px); background: rgba(255,255,255,.9); border-bottom: 1px solid rgba(36,24,32,.07); backdrop-filter: blur(14px); position: sticky; top: 0; z-index: 50; }
@media (prefers-color-scheme: dark) { .kb-nav { background: rgba(20,15,22,.9); border-bottom-color: var(--kb-line); } }
.kb-brandwrap { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.kb-logo { width: 34px; height: 34px; border-radius: 22%; box-shadow: var(--kb-shadow); }
.kb-brand { font-family: var(--kb-font-display); font-weight: 800; font-size: 24px; letter-spacing: -.04em; color: var(--kb-ink); }
.kb-brand-sm { font-size: 20px; }
.kb-nav-right { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.kb-nav-link { text-decoration: none; color: var(--kb-muted); font-weight: 600; font-size: 15px; padding: 8px 12px; border-radius: 10px; }
.kb-nav-link:hover { color: var(--kb-ink); background: var(--kb-surface-2); }
.kb-nav-cta { text-decoration: none; font-family: var(--kb-font-display); font-weight: 700; font-size: 15px; color: var(--kb-on-primary); background: var(--kb-primary); padding: 9px 16px; border-radius: 11px; }
.kb-nav-cta:hover { background: var(--kb-primary-strong); }

/* ---- buttons ---- */
.kb-btn { font-family: var(--kb-font-display); font-weight: 700; font-size: 15px; border-radius: 12px; padding: 12px 18px; border: 1px solid transparent; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 9px; transition: transform .12s ease, background .12s ease; }
.kb-btn-primary { background: var(--kb-primary); color: var(--kb-on-primary); }
.kb-btn-primary:hover { background: var(--kb-primary-strong); transform: translateY(-1px); }
.kb-btn-ghost { background: transparent; color: var(--kb-ink); border-color: var(--kb-line); }
.kb-btn-ghost:hover { background: var(--kb-surface-2); }

/* ---- hero ---- */
.kb-hero { max-width: 1080px; margin: 0 auto; padding: clamp(32px,6vw,72px) clamp(16px,4vw,44px); display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(28px,5vw,56px); align-items: center; }
@media (max-width: 820px) { .kb-hero { grid-template-columns: 1fr; } }
.kb-eyebrow { font-family: var(--kb-font-mono); font-size: 12px; letter-spacing: .18em; text-transform: uppercase; color: var(--kb-primary); font-weight: 500; margin: 0 0 16px; }
.kb-eyebrow-center { text-align: center; }
.kb-headline { font-family: var(--kb-font-display); font-weight: 800; font-size: clamp(34px,5.6vw,56px); line-height: 1.02; letter-spacing: -.035em; margin: 0; color: var(--kb-ink); text-wrap: balance; max-width: 15ch; }
.kb-headline em { font-style: normal; color: var(--kb-primary); }
.kb-lede { color: var(--kb-muted); font-size: 17px; max-width: 46ch; margin: 20px 0 0; }
.kb-btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* ---- coupon card (Hero-Visual) ---- */
.kb-hero-art { display: flex; justify-content: center; }
.kb-coupon { width: 100%; max-width: 380px; background: var(--kb-surface); border: 1px solid var(--kb-line); border-radius: 20px; box-shadow: var(--kb-shadow); overflow: hidden; }
.kb-coupon-top { background: linear-gradient(135deg, var(--kb-primary), var(--kb-primary-strong)); color: #fff; padding: 22px 24px; }
.kb-coupon-issuer { font-family: var(--kb-font-mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; opacity: .85; }
.kb-coupon-biz { font-family: var(--kb-font-display); font-weight: 700; font-size: 22px; margin-top: 3px; }
.kb-coupon-amount { font-family: var(--kb-font-display); font-weight: 800; font-size: 48px; letter-spacing: -.03em; margin-top: 12px; line-height: 1; font-variant-numeric: tabular-nums; }
.kb-coupon-amount span { font-size: 22px; font-weight: 700; opacity: .9; }
.kb-coupon-rest { font-size: 12.5px; opacity: .9; margin-top: 5px; }
.kb-coupon-status { margin-top: 12px; }
.kb-tear { position: relative; height: 22px; background: var(--kb-surface); }
.kb-tear::before, .kb-tear::after { content: ""; position: absolute; top: 50%; transform: translateY(-50%); width: 22px; height: 22px; border-radius: 999px; background: var(--kb-bg); border: 1px solid var(--kb-line); }
.kb-tear::before { left: -11px; } .kb-tear::after { right: -11px; }
.kb-tear-dots { position: absolute; left: 18px; right: 18px; top: 50%; transform: translateY(-50%); border-top: 2px dashed var(--kb-line); }
.kb-coupon-bottom { padding: 16px 24px 24px; display: flex; flex-direction: column; gap: 14px; }
.kb-code { display: flex; align-items: center; justify-content: space-between; gap: 12px; background: var(--kb-surface-2); border: 1px solid var(--kb-line); border-radius: 12px; padding: 11px 14px; color: var(--kb-ink); }
.kb-code-cap { font-family: var(--kb-font-mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--kb-muted); }
.kb-code-val { font-family: var(--kb-font-mono); font-size: 17px; letter-spacing: .12em; color: var(--kb-ink); }
.kb-coupon-foot { display: flex; flex-direction: column; align-items: flex-start; gap: 3px; font-size: 12.5px; color: var(--kb-muted); }

/* ---- state chips ---- */
.kb-chips { display: flex; flex-wrap: wrap; gap: 10px; }
.kb-chip { font-family: var(--kb-font-mono); font-size: 12px; letter-spacing: .04em; border-radius: 999px; padding: 6px 12px; display: inline-flex; align-items: center; gap: 7px; }
.kb-dot { width: 8px; height: 8px; border-radius: 999px; }
.kb-chip-active { background: var(--kb-success-tint); color: var(--kb-success); } .kb-chip-active .kb-dot { background: var(--kb-success); }
.kb-chip-partial { background: var(--kb-accent-tint); color: var(--kb-accent); } .kb-chip-partial .kb-dot { background: var(--kb-accent); }
.kb-chip-used { background: var(--kb-primary-tint); color: var(--kb-primary); } .kb-chip-used .kb-dot { background: var(--kb-primary); }
.kb-chip-expired { background: var(--kb-muted-tint); color: var(--kb-muted); } .kb-chip-expired .kb-dot { background: var(--kb-muted); }

/* ---- generische Sektionen ---- */
.kb-section { max-width: 1080px; margin: 0 auto; padding: clamp(44px,7vw,84px) clamp(16px,4vw,44px); }
.kb-section-alt { background: var(--kb-surface); border-block: 1px solid var(--kb-line); }
.kb-section-inner { max-width: 1080px; margin: 0 auto; padding: clamp(44px,7vw,84px) clamp(16px,4vw,44px); }
.kb-h2 { font-family: var(--kb-font-display); font-weight: 800; font-size: clamp(26px,3.6vw,40px); line-height: 1.06; letter-spacing: -.03em; margin: 0 auto; max-width: 20ch; text-align: center; color: var(--kb-ink); text-wrap: balance; }

/* ---- Feature-Kacheln ---- */
.kb-features { display: grid; grid-template-columns: repeat(3,1fr); gap: clamp(16px,2.4vw,24px); margin-top: clamp(28px,4vw,44px); }
.kb-feature { background: var(--kb-surface); border: 1px solid var(--kb-line); border-radius: 18px; padding: 26px 24px; box-shadow: var(--kb-shadow); }
.kb-feature-ico { width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; background: var(--kb-primary-tint); color: var(--kb-primary); }
.kb-feature h3 { font-family: var(--kb-font-display); font-weight: 700; font-size: 19px; letter-spacing: -.01em; margin: 16px 0 6px; color: var(--kb-ink); }
.kb-feature p { color: var(--kb-muted); font-size: 15px; margin: 0; }

/* ---- Schritte ---- */
.kb-steps { display: grid; grid-template-columns: repeat(3,1fr); gap: clamp(22px,3.4vw,40px); margin-top: clamp(28px,4vw,44px); }
.kb-step-num { width: 42px; height: 42px; border-radius: 999px; display: grid; place-items: center; background: var(--kb-primary); color: var(--kb-on-primary); font-family: var(--kb-font-display); font-weight: 800; font-size: 19px; margin-bottom: 16px; }
.kb-step h3 { font-family: var(--kb-font-display); font-weight: 700; font-size: 19px; letter-spacing: -.01em; margin: 0 0 6px; color: var(--kb-ink); }
.kb-step p { color: var(--kb-muted); font-size: 15px; margin: 0; }

/* ---- Für-Betriebe-CTA ---- */
.kb-cta-band { background: linear-gradient(135deg, var(--kb-primary), var(--kb-primary-strong)); border-radius: 22px; padding: clamp(28px,4.2vw,48px); color: #fff; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; box-shadow: var(--kb-shadow); }
.kb-cta-copy { max-width: 52ch; }
.kb-cta-band h2 { font-family: var(--kb-font-display); font-weight: 800; font-size: clamp(23px,2.8vw,32px); letter-spacing: -.02em; margin: 0 0 8px; color: #fff; }
.kb-cta-band p { color: rgba(255,255,255,.9); font-size: 16px; margin: 0; }
.kb-eyebrow-on-primary { color: rgba(255,255,255,.85) !important; }
.kb-btn-oncta { font-family: var(--kb-font-display); font-weight: 700; font-size: 15px; border-radius: 12px; padding: 13px 22px; text-decoration: none; white-space: nowrap; background: #fff; color: var(--kb-primary-strong); display: inline-flex; align-items: center; gap: 9px; transition: transform .12s ease, background .12s ease; }
.kb-btn-oncta:hover { transform: translateY(-1px); background: rgba(255,255,255,.92); }

@media (max-width: 820px) { .kb-features, .kb-steps { grid-template-columns: 1fr; } .kb-cta-band { flex-direction: column; align-items: flex-start; } }
@media (prefers-reduced-motion: reduce) { .kb-btn:hover, .kb-btn-oncta:hover { transform: none; } }

/* ---- footer ---- */
.kb-footer { border-top: 1px solid var(--kb-line); background: var(--kb-surface-2); margin-top: 40px; }
.kb-footer-inner { max-width: 1080px; margin: 0 auto; padding: 26px clamp(16px,4vw,44px); display: flex; align-items: center; gap: 20px; flex-wrap: wrap; color: var(--kb-muted); font-size: 13.5px; }
.kb-footer-legal { display: flex; gap: 16px; flex-wrap: wrap; }
.kb-footer-legal a { color: var(--kb-muted); text-decoration: none; }
.kb-footer-legal a:hover { color: var(--kb-primary); }
.kb-footer-copy { margin-left: auto; font-family: var(--kb-font-mono); font-size: 12px; letter-spacing: .02em; }

/* ---- Rechtstext-Seiten (Impressum/Datenschutz/AGB) ---- */
.kb-legal { max-width: 760px; margin: 0 auto; padding: clamp(32px,6vw,64px) clamp(16px,4vw,44px); }
.kb-legal h1 { font-family: var(--kb-font-display); font-weight: 800; font-size: clamp(28px,4vw,40px); letter-spacing: -.03em; margin: 0 0 8px; color: var(--kb-ink); }
.kb-legal .kb-legal-meta { color: var(--kb-muted); font-size: 14px; margin: 0 0 28px; }
.kb-legal h2 { font-family: var(--kb-font-display); font-weight: 700; font-size: 21px; letter-spacing: -.01em; margin: 32px 0 8px; color: var(--kb-ink); }
.kb-legal p, .kb-legal li { color: var(--kb-ink); font-size: 16px; }
.kb-legal a { color: var(--kb-primary); }
.kb-legal .kb-todo { display: inline-block; background: var(--kb-accent-tint); color: var(--kb-accent); font-family: var(--kb-font-mono); font-size: 12px; padding: 2px 8px; border-radius: 6px; }
.kb-legal-note { background: var(--kb-surface); border: 1px dashed var(--kb-primary); border-radius: 12px; padding: 14px 16px; margin: 0 0 28px; color: var(--kb-muted); font-size: 14px; }