/* ==========================================================================
   KI Company – Onboarding Landingpage (nur für index.html)
   Apple-inspiriertes Design: hell, ruhig, ein blauer Akzent.
   ========================================================================== */

:root {
    --bg: #f5f5f7;
    --card: #ffffff;
    --ink: #1d1d1f;
    --muted: #6e6e73;
    --hairline: #d2d2d7;
    --accent: #0071e3;
    --accent-hover: #0077ed;
    --radius: 18px;
}

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

html {
    overflow-x: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    background: var(--bg);
    color: var(--ink);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* --- Kopfzeile --- */
.topbar {
    display: flex;
    justify-content: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--hairline);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
}

.logo {
    height: 34px;
    width: auto;
}

/* --- Hero --- */
.hero {
    flex: 1;
    width: 100%;
    max-width: 860px;
    margin: 0 auto;
    padding: 88px 24px 64px;
    text-align: center;
    animation: fadeUp 0.7s ease both;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .hero {
        animation: none;
    }
}

.eyebrow {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
}

.hero h1 {
    font-size: clamp(2.5rem, 7vw, 4.25rem);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.05;
    margin-bottom: 22px;
}

.lead {
    font-size: 1.2rem;
    line-height: 1.55;
    color: var(--muted);
    max-width: 560px;
    margin: 0 auto 40px;
}

/* --- Call-to-Action --- */
.cta {
    display: inline-block;
    font-size: 1.05rem;
    font-weight: 600;
    color: #ffffff;
    text-decoration: none;
    padding: 15px 44px;
    border-radius: 980px;
    background: var(--accent);
    transition: background 0.2s ease, transform 0.15s ease;
}

.cta:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.cta:focus-visible {
    outline: 3px solid rgba(0, 113, 227, 0.4);
    outline-offset: 3px;
}

.hint {
    margin-top: 16px;
    font-size: 0.85rem;
    color: var(--muted);
}

/* --- Schritte --- */
.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 72px;
    text-align: left;
}

.step {
    background: var(--card);
    border-radius: var(--radius);
    padding: 26px 24px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.step-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 10px;
}

.step h3 {
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 6px;
}

.step p {
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--muted);
}

/* --- Fußzeile --- */
.footer {
    padding: 24px;
    border-top: 1px solid var(--hairline);
    text-align: center;
    font-size: 0.8rem;
    color: var(--muted);
}

/* --- Responsive --- */
@media (max-width: 680px) {
    .hero {
        padding-top: 56px;
    }

    .steps {
        grid-template-columns: 1fr;
        margin-top: 48px;
    }
}