/* Leitfaden page — public, no login required */

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

body {
    max-width: none;
    margin: 0;
    padding: 0;
    background: #f4f6fb;
}

/* Header */
.lf_header {
    background: #0a1b3d;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.lf_header_inner {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}
.lf_logo {
    color: #fff;
    font-weight: 700;
    font-size: 1.15em;
    text-decoration: none;
    letter-spacing: 0.02em;
}
.lf_nav { display: flex; gap: 16px; align-items: center; }
.lf_nav a { color: #ccd6f6; text-decoration: none; font-size: 0.95em; }
.lf_nav a:hover { color: #fff; }
.lf_nav_cta {
    background: #2a5cdb;
    color: #fff !important;
    padding: 6px 16px;
    border-radius: 6px;
    font-weight: 600;
}
.lf_nav_cta:hover { background: #1e47b5; }

/* Hero */
.lf_hero {
    background: linear-gradient(135deg, #0a1b3d 0%, #1a3870 100%);
    color: #fff;
    text-align: center;
    padding: 56px 24px 48px;
}
.lf_badge {
    display: inline-block;
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.3);
    color: #ccd6f6;
    font-size: 0.8em;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 16px;
}
.lf_hero h1 {
    font-size: 2em;
    margin: 0 0 12px;
    border: none;
    color: #fff;
    padding: 0;
}
.lf_hero_sub {
    font-size: 1.1em;
    color: #aac4f5;
    margin: 0;
}

/* Main content */
.lf_main {
    max-width: 860px;
    margin: 0 auto;
    padding: 0 20px 60px;
}

/* Article */
.lf_content {
    background: #fff;
    border-radius: 10px;
    padding: 40px 44px;
    margin-top: 36px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.07);
    line-height: 1.75;
    color: #2c2c2c;
}
.lf_content h2 {
    color: #0a1b3d;
    font-size: 1.35em;
    margin-top: 2em;
    margin-bottom: 0.4em;
    border-bottom: 2px solid #e0e8f7;
    padding-bottom: 0.25em;
}
.lf_content h2:first-child { margin-top: 0; }
.lf_content h3 {
    color: #1a3870;
    font-size: 1.05em;
    margin-top: 1.2em;
    margin-bottom: 0.3em;
}
.lf_content ul {
    padding-left: 1.4em;
    margin: 0.5em 0 1em;
}
.lf_content li { margin-bottom: 0.35em; }
.lf_content code {
    background: #f0f4ff;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
    color: #1a3870;
}

/* Tip box */
.lf_tip {
    background: #eef3ff;
    border-left: 4px solid #2a5cdb;
    padding: 14px 18px;
    border-radius: 0 8px 8px 0;
    margin: 1.2em 0;
    font-size: 0.97em;
    color: #1a2a50;
}
.lf_tip a { color: #2a5cdb; }

/* CTA box */
.lf_cta_box {
    background: linear-gradient(135deg, #0a1b3d, #1a3870);
    color: #fff;
    text-align: center;
    padding: 44px 32px;
    border-radius: 12px;
    margin-top: 40px;
}
.lf_cta_box h2 {
    font-size: 1.4em;
    margin: 0 0 12px;
    color: #fff;
}
.lf_cta_box p {
    color: #aac4f5;
    margin: 0 0 24px;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}
.lf_cta_btn {
    display: inline-block;
    background: #2a5cdb;
    color: #fff;
    padding: 14px 36px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1.05em;
    text-decoration: none;
    transition: background 0.2s, transform 0.2s;
}
.lf_cta_btn:hover {
    background: #1e47b5;
    transform: translateY(-2px);
    text-decoration: none;
}

@media (max-width: 600px) {
    .lf_content { padding: 24px 20px; }
    .lf_hero h1 { font-size: 1.5em; }
}