:root {
    --tiaki-tief:        #14503f;
    --tiaki-dunkel:      #14503f;
    --tiaki-primary:     #1b6b54;
    --tiaki-hell-bg:     #e6f1ec;
    --tiaki-hell-2:      #d3e6dd;
    --tiaki-text-gruen:  #16503f;
    --tiaki-warn:        #b26a00;
    --tiaki-warn-bg:     #fdf0dd;
    --tiaki-text:        #2c2c2a;
    --tiaki-text-muted:  #5f5e5a;
    --tiaki-border:      #e2e0d8;
    --tiaki-surface:     #f6f4ee;
    --tiaki-white:       #ffffff;
    --tiaki-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--tiaki-font);
    color: var(--tiaki-text);
    background: var(--tiaki-white);
    line-height: 1.55;
}

a { color: var(--tiaki-primary); text-decoration: none; }
h1, h2, h3 { font-weight: 500; line-height: 1.25; margin: 0 0 16px; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header {
    position: sticky; top: 0; z-index: 10;
    background: var(--tiaki-primary);
    border-bottom: 0.5px solid var(--tiaki-dunkel);
}
.site-header .wrap {
    display: flex; align-items: center; justify-content: space-between;
    height: 64px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 500; letter-spacing: -0.8px; font-size: 19px; color: white; }
.brand svg { flex-shrink: 0; }
.site-header nav { display: flex; align-items: center; gap: 28px; }
.site-header nav a { color: rgba(255,255,255,0.85); font-size: 14px; }
.site-header nav a:hover { color: white; }
.btn {
    display: inline-block; border-radius: 8px; padding: 10px 20px;
    font-size: 14px; font-weight: 500; border: 0.5px solid transparent; cursor: pointer;
}
.btn-primary { background: var(--tiaki-primary); color: white; }
.btn-primary:hover { background: var(--tiaki-dunkel); }
.btn-secondary { border: 0.5px solid var(--tiaki-primary); color: var(--tiaki-primary); background: white; }
.btn-secondary:hover { background: var(--tiaki-hell-bg); }
.site-header .btn-secondary { border-color: white; color: white; background: transparent; }
.site-header .btn-secondary:hover { background: rgba(255,255,255,0.12); }

/* Hero */
.hero { background: var(--tiaki-hell-bg); padding: 90px 0 80px; text-align: center; }
.hero .subzeile {
    text-transform: uppercase; letter-spacing: 0.14em; font-size: 12px;
    color: var(--tiaki-text-gruen); font-weight: 500; margin-bottom: 18px;
}
.hero h1 { font-size: 42px; max-width: 720px; margin: 0 auto 20px; color: var(--tiaki-tief); }
.hero p.lead { font-size: 18px; color: var(--tiaki-text-muted); max-width: 600px; margin: 0 auto 32px; }
.hero .cta-row { display: flex; gap: 14px; justify-content: center; }
.hero .btn { padding: 13px 28px; font-size: 15px; }

/* Sections */
section { padding: 80px 0; }
.section-head { text-align: center; max-width: 620px; margin: 0 auto 48px; }
.section-head h2 { font-size: 30px; color: var(--tiaki-tief); }
.section-head p { color: var(--tiaki-text-muted); font-size: 16px; }

/* Features */
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.features-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.feature-card {
    border: 0.5px solid var(--tiaki-border); border-radius: 12px; padding: 26px 22px;
}
.feature-card .icon {
    width: 44px; height: 44px; border-radius: 10px; background: var(--tiaki-primary);
    display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
    color: white;
}
.feature-card .icon svg { width: 22px; height: 22px; }
.feature-card h3 { font-size: 16px; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--tiaki-text-muted); margin: 0; }

/* Steps */
.steps { background: var(--tiaki-surface); }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.step { text-align: center; }
.step .num {
    width: 40px; height: 40px; border-radius: 50%; background: var(--tiaki-tief); color: white;
    display: flex; align-items: center; justify-content: center; font-weight: 500;
    margin: 0 auto 16px;
}
.step h3 { font-size: 16px; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--tiaki-text-muted); }

/* Warnliste (Kennen Sie das?) */
.warn-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 14px; max-width: 560px; }
.warn-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; }
.warn-list li .mark { color: var(--tiaki-warn); flex-shrink: 0; font-size: 16px; line-height: 1.5; }

/* Mini-Features (Gründe, Sicherheit, Funktionen) */
.mini-features-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.mini-feature { display: flex; gap: 14px; }
.mini-feature .dot {
    flex: none; width: 8px; height: 8px; border-radius: 50%;
    background: var(--tiaki-primary); margin-top: 8px;
}
.mini-feature h4 { font-size: 15px; margin: 0 0 4px; color: var(--tiaki-tief); }
.mini-feature p { font-size: 13.5px; color: var(--tiaki-text-muted); margin: 0; }

/* Quote */
.quote-block {
    background: var(--tiaki-tief); color: white; border-radius: 16px;
    padding: 56px 48px; text-align: center;
}
.quote-block p { font-size: 22px; font-weight: 500; max-width: 640px; margin: 0 auto 8px; }
.quote-block span { font-size: 14px; color: var(--tiaki-hell-2); }

/* CTA */
.cta-section { text-align: center; }
.cta-section h2 { font-size: 28px; color: var(--tiaki-tief); }
.cta-section p { color: var(--tiaki-text-muted); margin-bottom: 28px; }

/* Footer */
.site-footer { background: var(--tiaki-tief); color: rgba(255,255,255,0.75); padding: 40px 0; font-size: 13px; }
.site-footer .wrap { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.site-footer a { color: rgba(255,255,255,0.75); }
.site-footer a:hover { color: white; }
.site-footer .links { display: flex; gap: 20px; }

/* Browser-Frame (App-Vorschau) */
.browser-frame {
    border-radius: 12px; border: 0.5px solid var(--tiaki-border);
    box-shadow: 0 20px 40px -20px rgba(20, 80, 63, 0.25);
    overflow: hidden; background: var(--tiaki-white);
}
.browser-frame .browser-bar {
    display: flex; align-items: center; gap: 8px;
    padding: 10px 14px; background: var(--tiaki-surface);
    border-bottom: 0.5px solid var(--tiaki-border);
}
.browser-frame .browser-bar span.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--tiaki-border); }
.browser-frame .browser-bar .url { font-size: 12px; color: var(--tiaki-text-muted); margin-left: 6px; }

/* App-Mockup im Hero */
.app-preview { padding: 20px; }
.preview-actions { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 12px; }
.preview-action { border-radius: 10px; padding: 18px; text-align: left; }
.preview-action.primary { background: var(--tiaki-primary); color: white; }
.preview-action:not(.primary) { background: var(--tiaki-hell-bg); color: var(--tiaki-text-gruen); }
.preview-action .ico { margin-bottom: 10px; opacity: 0.9; }
.preview-action strong { display: block; font-size: 14px; margin-bottom: 2px; }
.preview-action span { font-size: 12px; opacity: .85; }
.preview-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 12px; }
.preview-stat { border: 0.5px solid var(--tiaki-border); border-radius: 10px; padding: 14px; text-align: center; }
.preview-stat .zahl { font-size: 22px; font-weight: 600; color: var(--tiaki-tief); }
.preview-stat .zahl.warn { color: var(--tiaki-warn); }
.preview-stat .label { font-size: 11px; color: var(--tiaki-text-muted); }
.preview-warn { background: var(--tiaki-warn-bg); border: 0.5px solid #f0d9ae; border-radius: 10px; padding: 14px 16px; font-size: 13px; color: var(--tiaki-warn); display: flex; gap: 10px; align-items: flex-start; }
.preview-warn .titel { font-weight: 600; margin-bottom: 2px; }
.preview-warn .detail { color: var(--tiaki-text-muted); font-weight: 400; }

/* Kennzahlen (Tiaki im Einsatz) */
.kennzahlen-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.kennzahlen-grid .zahl { font-size: 38px; font-weight: 600; color: var(--tiaki-tief); }
.kennzahlen-grid .label { font-size: 14px; color: var(--tiaki-text-muted); margin-top: 4px; }

/* Preiskarten */
.pricing-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: start; }
.pricing-card { position: relative; border: 0.5px solid var(--tiaki-border); border-radius: 14px; padding: 32px 28px; background: white; }
.pricing-card.featured { border: 1.5px solid var(--tiaki-primary); box-shadow: 0 24px 48px -28px rgba(27, 107, 84, 0.4); }
.pricing-card .featured-badge {
    position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
    background: var(--tiaki-primary); color: white; font-size: 11px; font-weight: 500;
    padding: 4px 14px; border-radius: 999px; letter-spacing: 0.03em;
}
.pricing-card .plan-name { font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--tiaki-text-muted); font-weight: 500; margin-bottom: 14px; }
.pricing-card .plan-price { font-size: 36px; font-weight: 600; color: var(--tiaki-tief); line-height: 1.1; }
.pricing-card .plan-price small { font-size: 14px; font-weight: 400; color: var(--tiaki-text-muted); }
.pricing-card .plan-period { font-size: 13px; color: var(--tiaki-text-muted); margin: 6px 0 24px; }
.pricing-card ul { list-style: none; padding: 0; margin: 0 0 28px; display: flex; flex-direction: column; gap: 11px; }
.pricing-card li { display: flex; gap: 9px; align-items: flex-start; font-size: 14px; color: var(--tiaki-text); }
.pricing-card li::before { content: "✓"; color: var(--tiaki-primary); font-weight: 700; flex-shrink: 0; }
.pricing-card .btn { width: 100%; text-align: center; }
.pricing-note { font-size: 13px; color: var(--tiaki-text-muted); margin-top: 4px; text-align: center; }

/* FAQ */
.faq-list { max-width: 680px; margin: 0 auto; }
.faq-item { border-bottom: 0.5px solid var(--tiaki-border); padding: 18px 0; }
.faq-item summary { cursor: pointer; font-weight: 500; color: var(--tiaki-tief); font-size: 16px; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 20px; color: var(--tiaki-text-muted); flex-shrink: 0; }
.faq-item[open] summary::after { content: "\2013"; }
.faq-item p { margin: 12px 0 0; color: var(--tiaki-text-muted); font-size: 14px; }

/* Kontakt */
.kontakt-card { max-width: 560px; margin: 0 auto; border: 0.5px solid var(--tiaki-border); border-radius: 14px; padding: 36px 32px; background: var(--tiaki-surface); text-align: left; }
.kontakt-card h3 { font-size: 16px; color: var(--tiaki-tief); margin-bottom: 14px; }
.kontakt-card ul { margin: 0 0 24px; padding-left: 20px; color: var(--tiaki-text-muted); font-size: 14px; line-height: 1.8; }

/* Mobile-Navigation (Hamburger) */
.header-actions { display: flex; align-items: center; gap: 12px; }
.nav-toggle {
    display: none; background: none; border: none; cursor: pointer;
    padding: 6px; border-radius: 8px; color: white;
}
.nav-toggle svg { display: block; }

@media (max-width: 860px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .features-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
    .steps-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 32px; }
    .mini-features-grid { grid-template-columns: 1fr; }
    .pricing-cards { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
    .preview-actions { grid-template-columns: 1fr; }
    .preview-stats { grid-template-columns: repeat(2, 1fr); }
    .kennzahlen-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }

    .nav-toggle { display: flex; }
    .site-header nav {
        display: none;
        position: absolute;
        top: 64px; left: 0; right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: var(--tiaki-primary);
        border-bottom: 0.5px solid var(--tiaki-dunkel);
        box-shadow: 0 16px 24px -16px rgba(20, 80, 63, 0.4);
        padding: 4px 24px 12px;
    }
    .site-header nav a { padding: 13px 0; border-bottom: 0.5px solid rgba(255,255,255,0.15); font-size: 15px; }
    .site-header nav a:last-child { border-bottom: none; }
    .site-header.nav-open nav { display: flex; }
}

@media (max-width: 560px) {
    .features-grid, .features-grid.cols-3 { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .hero .cta-row { flex-direction: column; }
    .hero .cta-row .btn { width: 100%; }
}