/* Copper Tracker – Landing Page. Dunkel wie die App (#121212), Kupfer-Akzente aus dem Icon. */
:root {
  --bg: #121212;
  --bg-alt: #17140f;
  --card: #1e1e1e;
  --line: #2c2723;
  --text: #f4efe9;
  --muted: #a89f97;
  --cu: #e08a52;
  --cu-light: #ffc79a;
  --cu-dark: #b8592b;
  --live: #69f0ae;
  --err: #ff6e6e;
  --radius: 18px;
  --grad: linear-gradient(135deg, #ffd2a8 0%, #e8915a 40%, #b8592b 100%);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.55;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.container--narrow { max-width: 760px; }

/* NAV */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(18,18,18,.82); backdrop-filter: saturate(160%) blur(14px); -webkit-backdrop-filter: saturate(160%) blur(14px); border-bottom: 1px solid var(--line); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 12px; }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 19px; letter-spacing: -.01em; }
.brand__icon { border-radius: 8px; }
.brand__accent { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav__links { display: flex; align-items: center; gap: 22px; font-size: 15px; }
.nav__links > a:not(.btn) { color: var(--muted); transition: color .2s; }
.nav__links > a:not(.btn):hover { color: var(--text); }
.lang { display: flex; gap: 4px; }
.lang__btn { padding: 4px; border-radius: 6px; opacity: .45; transition: opacity .2s, background .2s; line-height: 0; }
.lang__btn svg { border-radius: 2px; }
.lang__btn:hover { opacity: .8; }
.lang__btn.is-active { opacity: 1; background: rgba(255,255,255,.08); }

.btn { display: inline-flex; align-items: center; justify-content: center; border-radius: 999px; padding: 9px 18px; font-weight: 600; font-size: 15px; transition: transform .15s, filter .2s, background .2s; white-space: nowrap; }
.btn--primary { background: var(--grad); color: #2a1408; }
.btn--primary:hover { filter: brightness(1.08); transform: translateY(-1px); }
.btn--ghost { border: 1px solid var(--line); color: var(--cu-light); }
.btn--ghost:hover { background: rgba(224,138,82,.1); }

/* HERO */
.hero { position: relative; padding: 72px 0 56px; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(900px 500px at 75% 30%, rgba(224,138,82,.16), transparent 60%), radial-gradient(600px 400px at 0% 100%, rgba(184,89,43,.12), transparent 60%); pointer-events: none; }
.hero__inner { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.pill { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; color: var(--cu-light); background: rgba(224,138,82,.12); border: 1px solid rgba(224,138,82,.3); padding: 6px 12px; border-radius: 999px; }
.pill__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--live); box-shadow: 0 0 8px var(--live); }
h1 { font-size: clamp(36px, 5.4vw, 60px); line-height: 1.06; letter-spacing: -.03em; font-weight: 800; margin: 18px 0 16px; }
.accent { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: 18px; color: var(--muted); max-width: 540px; }

.ticker { margin: 28px 0 26px; max-width: 440px; background: linear-gradient(135deg, rgba(224,138,82,.14), rgba(30,30,30,.9)); border: 1px solid rgba(224,138,82,.35); border-radius: var(--radius); padding: 18px 20px; box-shadow: 0 18px 40px rgba(0,0,0,.35); }
.ticker__row { display: flex; align-items: center; gap: 8px; }
.ticker__label { color: var(--muted); font-size: 14px; font-weight: 500; }
.ticker__status { width: 9px; height: 9px; border-radius: 50%; background: #555; }
.ticker__status.is-live { background: var(--live); box-shadow: 0 0 8px var(--live); animation: pulse 2s infinite; }
.ticker__status.is-error { background: var(--err); }
@keyframes pulse { 50% { opacity: .45; } }
.cur { margin-left: auto; display: flex; gap: 2px; background: rgba(0,0,0,.3); border-radius: 999px; padding: 3px; }
.cur__btn { font-size: 12px; font-weight: 600; padding: 3px 9px; border-radius: 999px; color: var(--muted); }
.cur__btn.is-active { background: var(--cu); color: #2a1408; }
.ticker__price { display: flex; align-items: baseline; gap: 8px; margin-top: 6px; font-variant-numeric: tabular-nums; }
#ticker-price { font-size: 40px; font-weight: 800; letter-spacing: -.02em; }
.ticker__unit { color: var(--muted); font-size: 16px; }
.ticker__meta { color: var(--muted); font-size: 13px; margin-top: 2px; }

.store-row { display: flex; gap: 12px; flex-wrap: wrap; }
.store-row--center { justify-content: center; }
.store-badge { position: relative; display: block; transition: transform .15s; }
.store-badge img { height: 50px; width: auto; }
.store-badge[href]:hover { transform: translateY(-2px); }
.store-badge.is-soon { cursor: default; }
.store-badge.is-soon img { opacity: .45; filter: grayscale(1); }
.store-badge.is-soon::after { content: attr(data-soon); position: absolute; top: -9px; right: -6px; background: var(--cu); color: #2a1408; font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 999px; white-space: nowrap; }
.hero__note { color: var(--muted); font-size: 14px; margin-top: 14px; }

.hero__visual { position: relative; display: flex; justify-content: center; }
.hero__glow { position: absolute; width: 380px; height: 380px; border-radius: 50%; background: radial-gradient(circle, rgba(232,145,90,.45), transparent 65%); filter: blur(30px); top: 50%; left: 50%; transform: translate(-50%,-50%); }
.phone { position: relative; width: 100%; max-width: 300px; aspect-ratio: 390 / 844; border-radius: 42px; padding: 10px; background: linear-gradient(145deg, #3a302a, #141110); box-shadow: 0 0 0 1px rgba(255,200,160,.15), 0 30px 60px rgba(0,0,0,.55); }
.phone__shot { width: 100%; height: 100%; object-fit: cover; border-radius: 33px; }
.phone--hero { max-width: 320px; transform: rotate(-3deg); }

/* TRUST */
.trust { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg-alt); }
.trust__inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; padding: 22px 20px; }
.trust__item { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--muted); }
.trust__item svg { flex: 0 0 22px; width: 22px; height: 22px; fill: none; stroke: var(--cu); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* SECTIONS */
.section { padding: 88px 0; }
.section--tight { padding: 56px 0 24px; }
.section--alt { background: var(--bg-alt); }
.section__title { text-align: center; font-size: clamp(28px, 4vw, 42px); letter-spacing: -.02em; line-height: 1.15; font-weight: 800; }
.section__sub { text-align: center; color: var(--muted); font-size: 17px; max-width: 620px; margin: 12px auto 0; }

/* RECHNER */
.calc { margin-top: 40px; display: grid; grid-template-columns: 1.3fr 1fr; gap: 24px; background: var(--card); border: 1px solid var(--line); border-radius: 24px; padding: 28px; }
.calc__inputs { display: flex; flex-direction: column; gap: 20px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field__label { font-size: 13px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.field input { font: inherit; font-size: 22px; font-weight: 600; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; width: 100%; max-width: 220px; }
.field input:focus { outline: none; border-color: var(--cu); box-shadow: 0 0 0 3px rgba(224,138,82,.2); }
.grades { display: flex; flex-wrap: wrap; gap: 8px; }
.grade { font-size: 14px; padding: 7px 12px; border-radius: 10px; border: 1px solid var(--line); color: var(--text); transition: border-color .15s, background .15s; }
.grade:hover { border-color: rgba(224,138,82,.5); }
.grade.is-active { border-color: var(--cu); background: rgba(224,138,82,.18); }
.calc__result { border-radius: 18px; padding: 24px; background: linear-gradient(135deg, #3b2418, #1e1a17); border: 1px solid rgba(224,138,82,.35); display: flex; flex-direction: column; justify-content: center; }
.calc__label { color: var(--muted); font-size: 15px; }
.calc__value { font-size: clamp(36px, 5vw, 52px); font-weight: 800; letter-spacing: -.02em; margin: 4px 0; font-variant-numeric: tabular-nums; }
.calc__detail { color: var(--cu-light); font-size: 14px; min-height: 1.4em; }
.calc__note { color: var(--muted); font-size: 13px; margin-top: 14px; }

/* FEATURES */
.feature { padding: 56px 0; }
.feature--alt { background: var(--bg-alt); }
.feature__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.feature--reverse .feature__copy { order: 2; }
.feature__eyebrow { color: var(--cu); font-weight: 700; font-size: 14px; text-transform: uppercase; letter-spacing: .08em; }
.feature__title { font-size: clamp(28px, 3.6vw, 40px); line-height: 1.12; letter-spacing: -.02em; margin: 10px 0 14px; font-weight: 800; }
.feature__text { color: var(--muted); font-size: 17px; max-width: 480px; }
.feature__visual { display: flex; justify-content: center; }

/* SORTEN-BALKEN */
.bars { max-width: 720px; margin: 36px auto 0; display: flex; flex-direction: column; gap: 10px; }
.bar { display: grid; grid-template-columns: 200px 1fr 56px; gap: 14px; align-items: center; font-size: 15px; }
.bar__track { height: 10px; border-radius: 999px; background: #2a2522; overflow: hidden; }
.bar__fill { display: block; height: 100%; border-radius: 999px; background: var(--grad); }
.bar__pct { text-align: right; color: var(--muted); font-variant-numeric: tabular-nums; }

/* FAKT */
.fact { display: flex; align-items: center; gap: 20px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; max-width: 860px; margin: 0 auto; }
.fact__icon { flex: 0 0 48px; height: 48px; border-radius: 14px; background: rgba(224,138,82,.15); display: grid; place-items: center; }
.fact__icon svg { width: 26px; height: 26px; fill: none; stroke: var(--cu-light); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.fact__body { flex: 1; }
.fact__label { font-size: 13px; font-weight: 700; color: var(--cu); text-transform: uppercase; letter-spacing: .06em; }
.fact__text { font-size: 17px; margin-top: 2px; }

/* PRO */
.pro__list { list-style: none; display: flex; justify-content: center; flex-wrap: wrap; gap: 12px 28px; margin-top: 28px; font-size: 17px; }
.pro__list li { display: flex; align-items: center; gap: 10px; }
.check { width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; background: var(--grad); color: #2a1408; font-size: 13px; font-weight: 800; }

/* FAQ */
.faq { margin-top: 36px; display: flex; flex-direction: column; gap: 10px; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 4px 20px; }
.faq summary { cursor: pointer; list-style: none; padding: 14px 28px 14px 0; font-weight: 600; font-size: 16px; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%); color: var(--cu); font-size: 22px; transition: transform .2s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq p { color: var(--muted); padding: 0 0 16px; }

/* CTA */
.cta { padding: 88px 0; text-align: center; background: radial-gradient(700px 360px at 50% 0%, rgba(224,138,82,.2), transparent 70%), var(--bg-alt); border-top: 1px solid var(--line); }
.cta__inner { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.cta__icon { border-radius: 20px; box-shadow: 0 14px 40px rgba(224,138,82,.3); }
.cta h2 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -.02em; line-height: 1.15; }
.cta p { color: var(--muted); font-size: 17px; margin-bottom: 8px; }

/* FOOTER */
.footer { border-top: 1px solid var(--line); padding: 36px 0 28px; font-size: 14px; }
.footer__inner { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; flex-wrap: wrap; }
.footer__tag { color: var(--muted); margin-top: 6px; }
.footer__links { display: flex; gap: 20px; flex-wrap: wrap; color: var(--muted); }
.footer__links a:hover { color: var(--text); }
.footer__legal { color: #6f6761; font-size: 13px; margin-top: 24px; }

/* REVEAL */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-in { opacity: 1; transform: none; }

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero { padding: 44px 0 40px; }
  .hero__inner, .feature__inner, .calc { grid-template-columns: 1fr; }
  .hero__copy { text-align: center; }
  .lead, .ticker { margin-left: auto; margin-right: auto; }
  .store-row { justify-content: center; }
  .phone--hero { max-width: 260px; }
  .feature { padding: 44px 0; }
  .feature__inner { gap: 32px; text-align: center; }
  .feature--reverse .feature__copy { order: 0; }
  .feature__text { margin: 0 auto; }
  .phone { max-width: 260px; }
  .trust__inner { grid-template-columns: 1fr 1fr; }
  .section { padding: 64px 0; }
}
@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .nav__hide-sm { display: none; }
  .nav__links { gap: 10px; }
  .btn { padding: 8px 14px; font-size: 14px; }
  .brand { font-size: 17px; }
  .trust__inner { grid-template-columns: 1fr; gap: 12px; padding: 18px 16px; }
  .calc { padding: 18px; }
  .field input { max-width: none; }
  .bar { grid-template-columns: 1fr 48px; gap: 4px 10px; font-size: 14px; }
  .bar__name { grid-column: 1 / -1; }
  .bar__track { grid-column: 1; }
  .fact { flex-direction: column; text-align: center; }
  .store-badge img { height: 44px; }
  #ticker-price { font-size: 34px; }
}