/* Lernwörter – Marketing Website
   Designsprache: hell, freundlich, abgerundete Karten, warmes Orange.
   Kein JS-Framework, vollständig responsive. */

:root {
    --accent: #FF8A3D;
    --accent-dark: #E5722A;
    --bg: #FFF8F2;
    --card: #FFFFFF;
    --text: #1F1B16;
    --text-soft: #5C5249;
    --border: #F1E3D3;
    --shadow: 0 6px 20px rgba(31, 27, 22, 0.06);
    --radius: 18px;
    --max-width: 1100px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { line-height: 1.2; margin: 0 0 0.6em; font-weight: 700; }
h1 { font-size: clamp(2rem, 4.5vw, 3.4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.2rem; }
p  { margin: 0 0 1em; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* Header */
header.site {
    position: sticky;
    top: 0;
    background: rgba(255, 248, 242, 0.85);
    backdrop-filter: saturate(180%) blur(16px);
    -webkit-backdrop-filter: saturate(180%) blur(16px);
    border-bottom: 1px solid var(--border);
    z-index: 50;
}
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    color: var(--text);
}
.brand .logo {
    display: none;
}
.brand .logo-img {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--accent);
    display: block;
    object-fit: cover;
}
.nav ul {
    display: flex; gap: 22px; list-style: none; padding: 0; margin: 0;
}
.nav ul a { color: var(--text-soft); font-weight: 500; }
.nav ul a:hover { color: var(--text); }

/* Hero */
.hero {
    padding: 80px 0 40px;
}
.hero-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 48px;
    align-items: center;
}
.hero .eyebrow {
    display: inline-block;
    background: #FFE6D2;
    color: var(--accent-dark);
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
}
.hero p.lead {
    font-size: 1.18rem;
    color: var(--text-soft);
    max-width: 540px;
}
.cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--accent);
    color: #fff;
    padding: 14px 22px;
    border-radius: 12px;
    font-weight: 600;
    box-shadow: var(--shadow);
}
.cta:hover { background: var(--accent-dark); text-decoration: none; }
.cta.secondary {
    background: var(--card);
    color: var(--text);
    border: 1px solid var(--border);
    box-shadow: none;
}

.cta-row {
    display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px;
}

/* Hero phone mockup */
.phone {
    width: 100%;
    max-width: 320px;
    aspect-ratio: 9/19.5;
    margin: 0 auto;
    background: linear-gradient(135deg, #FFC58A, #FF8A3D);
    border-radius: 44px;
    padding: 14px;
    box-shadow: 0 20px 60px rgba(31, 27, 22, 0.18);
    position: relative;
}
.phone::before {
    content: "";
    position: absolute;
    top: 22px; left: 50%;
    transform: translateX(-50%);
    width: 110px; height: 28px;
    background: #1F1B16;
    border-radius: 999px;
}
.phone-inner {
    background: #FFF8F2;
    border-radius: 32px;
    height: 100%;
    padding: 56px 18px 18px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.phone-card {
    background: #fff;
    border-radius: 14px;
    padding: 12px 14px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
    border: 1px solid var(--border);
}
.phone-card .title { font-weight: 600; font-size: 0.95rem; }
.phone-card .sub { color: var(--text-soft); font-size: 0.78rem; margin-top: 2px;}
.phone-pill { display: inline-block; padding: 4px 8px; background: #FFE6D2; color: var(--accent-dark);
              border-radius: 999px; font-size: 0.75rem; margin: 2px 4px 2px 0; }

/* Sections */
section { padding: 64px 0; }
section.alt { background: #FFFEFD; }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-head p { color: var(--text-soft); }

/* Feature grid */
.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.feature {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
}
.feature .icon {
    width: 44px; height: 44px;
    background: #FFE6D2;
    color: var(--accent-dark);
    border-radius: 12px;
    display: grid; place-items: center;
    font-size: 1.4rem;
    margin-bottom: 14px;
}

/* How it works */
.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    counter-reset: step;
}
.step {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    position: relative;
}
.step::before {
    counter-increment: step;
    content: counter(step);
    position: absolute;
    top: -16px; left: 20px;
    width: 36px; height: 36px;
    background: var(--accent);
    color: #fff;
    border-radius: 50%;
    display: grid; place-items: center;
    font-weight: 700;
}
.step h3 { margin-top: 14px; }

/* FAQ */
.faq details {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 22px;
    margin-bottom: 12px;
}
.faq summary {
    cursor: pointer;
    font-weight: 600;
    list-style: none;
    display: flex; justify-content: space-between; align-items: center;
}
.faq summary::after {
    content: "+";
    color: var(--accent);
    font-size: 1.4rem;
    transition: transform 0.2s ease;
}
.faq details[open] summary::after { content: "−"; }
.faq p { margin-top: 12px; color: var(--text-soft); }

/* Footer */
footer.site {
    background: #2A231C;
    color: #C9BFB4;
    padding: 48px 0 32px;
    margin-top: 48px;
}
footer.site a { color: #FFE6D2; }
footer.site .row {
    display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between;
}
footer.site .copyright { font-size: 0.85rem; opacity: 0.8; margin-top: 24px; }

/* Static legal pages */
.legal {
    max-width: 760px;
    margin: 64px auto;
    padding: 0 24px;
}
.legal h2 { margin-top: 32px; }
.legal address { font-style: normal; color: var(--text-soft); }

/* Responsive */
@media (max-width: 880px) {
    .hero { padding-top: 48px; }
    .hero-grid { grid-template-columns: 1fr; }
    .features { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr 1fr; }
    .nav ul { gap: 14px; font-size: 0.95rem; }
}
@media (max-width: 520px) {
    .steps { grid-template-columns: 1fr; }
    .nav ul { display: none; }
}