/* FROSTWERK — Clean, conversion-focused Landing Page. Hell, Whitespace, eine Akzentfarbe. */
:root {
  --bg: #fbfaf8;
  --surface: #ffffff;
  --tint: #f4efe7;
  --ink: #16130f;
  --muted: #6c6458;
  --line: #ece7df;
  --accent: #c1781b;
  --accent-d: #a5660f;
  --font: "General Sans", system-ui, -apple-system, sans-serif;
  --mono: "Space Mono", ui-monospace, monospace;
  --maxw: 1140px;
  --r: 16px;
  --shadow: 0 1px 2px rgba(22, 19, 15, 0.04), 0 12px 30px -12px rgba(22, 19, 15, 0.12);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}
* { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { font-family: var(--font); background: var(--bg); color: var(--ink); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
strong { font-weight: 600; }
.hl { color: var(--accent); }
.eyebrow { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); }

/* Reveal (JS-gated) */
.js .r { opacity: 0; transform: translateY(20px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.js .r.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .js .r { opacity: 1; transform: none; transition: none; } }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 0.45em; background: var(--accent); color: #fff; font-weight: 600; font-size: 0.98rem; text-decoration: none; padding: 0.85em 1.5em; border-radius: 10px; border: 1px solid transparent; cursor: pointer; transition: background 0.2s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease); }
.btn:hover { background: var(--accent-d); transform: translateY(-1px); box-shadow: 0 10px 24px -8px rgba(193, 120, 27, 0.5); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { background: #fff; border-color: var(--ink); box-shadow: none; }
.btn--sm { padding: 0.6em 1.05em; font-size: 0.88rem; border-radius: 9px; }

/* Nav */
.nav { position: sticky; top: 0; z-index: 30; background: rgba(251, 250, 248, 0.85); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--line); }
.nav__in { max-width: var(--maxw); margin-inline: auto; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding: 0.85rem 1.4rem; }
.nav__logo { font-weight: 600; font-size: 1.08rem; letter-spacing: 0.02em; text-decoration: none; color: var(--ink); }
.nav__links { display: flex; gap: 1.8rem; }
.nav__links a { color: var(--muted); text-decoration: none; font-size: 0.95rem; transition: color 0.2s; }
.nav__links a:hover { color: var(--ink); }
@media (max-width: 820px) { .nav__links { display: none; } }

/* Section basics */
section { max-width: var(--maxw); margin-inline: auto; padding: clamp(3.5rem, 9vh, 7rem) 1.4rem; }
.sec-head { max-width: 40ch; margin-bottom: clamp(2rem, 5vh, 3.4rem); }
.sec-head h2, .benefits h2, .feature h2, .quote__big, .cta h2, .faq h2 { font-weight: 600; letter-spacing: -0.02em; line-height: 1.1; }
.sec-head h2 { font-size: clamp(1.8rem, 4vw, 2.9rem); margin-top: 0.8rem; }

/* Hero */
.hero { display: grid; grid-template-columns: 1.05fr 0.92fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; padding-top: clamp(1.2rem, 3vh, 2.4rem); padding-bottom: clamp(2.5rem, 6vh, 4.5rem); }
.hero h1 { font-size: clamp(2.1rem, 4.4vw, 3.5rem); font-weight: 600; line-height: 1.05; letter-spacing: -0.03em; margin: 0.9rem 0 0; }
.lead { margin-top: 1.3rem; font-size: clamp(1.05rem, 1.5vw, 1.25rem); color: var(--muted); max-width: 42ch; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 2rem; }
.hero__trust { margin-top: 1.6rem; font-size: 0.9rem; color: var(--muted); }
.stars { color: var(--accent); letter-spacing: 0.05em; }
.hero__img img { width: 100%; aspect-ratio: 4/5; max-height: 70vh; object-fit: cover; border-radius: var(--r); box-shadow: var(--shadow); }
@media (max-width: 860px) { .hero { grid-template-columns: 1fr; } .hero__img { order: -1; } .hero__img img { aspect-ratio: 16/10; } }

/* Logos / trust strip */
.logos { text-align: center; padding-block: clamp(2rem, 5vh, 3.4rem); border-block: 1px solid var(--line); max-width: none; }
.logos__cap { color: var(--muted); font-size: 0.92rem; }
.logos__row { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem 2.6rem; margin-top: 1.2rem; font-family: var(--mono); font-size: 0.82rem; color: var(--ink); }
.logos__row span { opacity: 0.75; }

/* Benefits */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 1.8rem; box-shadow: var(--shadow); }
.card__ic { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 11px; background: var(--tint); color: var(--accent); font-size: 1.3rem; margin-bottom: 1.1rem; }
.card h3 { font-size: 1.25rem; font-weight: 600; letter-spacing: -0.01em; }
.card p { margin-top: 0.6rem; color: var(--muted); font-size: 0.98rem; }
@media (max-width: 820px) { .cards { grid-template-columns: 1fr; } }

/* Feature rows */
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
.feature--rev .feature__img { order: 2; }
.feature__img img { width: 100%; aspect-ratio: 5/4; object-fit: cover; border-radius: var(--r); box-shadow: var(--shadow); }
.feature h2 { font-size: clamp(1.7rem, 3.6vw, 2.6rem); margin: 0.7rem 0 1rem; }
.feature__text p { color: var(--muted); }
.ticks { list-style: none; margin-top: 1.6rem; display: grid; gap: 0.7rem; }
.ticks li { position: relative; padding-left: 1.8rem; }
.ticks li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--accent); font-weight: 700; }
@media (max-width: 820px) { .feature { grid-template-columns: 1fr; } .feature--rev .feature__img { order: -1; } }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.stat { background: var(--surface); padding: clamp(1.4rem, 3vw, 2.4rem); text-align: center; }
.stat b { display: block; font-size: clamp(1.9rem, 4vw, 3rem); font-weight: 600; letter-spacing: -0.02em; }
.stat span { color: var(--muted); font-size: 0.86rem; }
@media (max-width: 680px) { .stats { grid-template-columns: repeat(2, 1fr); } }

/* Testimonial */
.quote { display: grid; grid-template-columns: 280px 1fr; gap: clamp(1.6rem, 4vw, 3.4rem); align-items: center; }
.quote__ph img { width: 100%; aspect-ratio: 1/1; object-fit: cover; border-radius: var(--r); box-shadow: var(--shadow); }
.quote__big { font-size: clamp(1.4rem, 2.7vw, 2.05rem); font-weight: 500; letter-spacing: -0.01em; }
.quote__by { margin-top: 1.2rem; color: var(--muted); }
@media (max-width: 720px) { .quote { grid-template-columns: 1fr; } .quote__ph { max-width: 200px; } }

/* CTA */
.cta { max-width: none; padding-inline: 1.4rem; }
.cta__box { max-width: 760px; margin-inline: auto; background: var(--ink); color: #f6f2ec; border-radius: 22px; padding: clamp(2.4rem, 6vw, 4.5rem); text-align: center; }
.cta__box .eyebrow { color: #e7a755; }
.cta__box h2 { font-size: clamp(2rem, 5vw, 3.2rem); margin: 0.8rem 0; }
.cta__box .hl { color: #e7a755; }
.cta__box > p { color: #c7bdb0; max-width: 46ch; margin: 0 auto 2rem; }
.cta__form { display: flex; gap: 0.5rem; max-width: 460px; margin-inline: auto; flex-wrap: wrap; justify-content: center; }
.cta__form input { flex: 1 1 240px; background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.18); color: #fff; padding: 0.9em 1.1em; border-radius: 10px; font-family: inherit; font-size: 0.95rem; }
.cta__form input::placeholder { color: #9b9184; }
.cta__form input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.cta__form.sent input, .cta__form.sent button { display: none; }
.cta__ok { flex-basis: 100%; color: #e7a755; font-weight: 500; }
.cta__note { display: block; color: #8b8175; font-size: 0.78rem; margin-top: 1.2rem; }

/* FAQ */
.faq__list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 1.4rem 0; font-weight: 600; font-size: 1.08rem; display: flex; justify-content: space-between; gap: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font-weight: 400; font-size: 1.4rem; transition: transform 0.2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--muted); padding: 0 0 1.5rem; max-width: 62ch; }

/* Footer */
.foot { border-top: 1px solid var(--line); }
.foot__in { max-width: var(--maxw); margin-inline: auto; display: flex; flex-wrap: wrap; gap: 0.5rem 2rem; justify-content: space-between; align-items: center; padding: 2rem 1.4rem; }
.foot__logo { font-weight: 600; }
.foot__dim { color: var(--muted); font-size: 0.82rem; }