/* KanuHub — Webseiten-Styles */

:root {
    --color-primary:   #0a7ea4;   /* Paddel-Blau */
    --color-primary-dark: #065a78;
    --color-accent:    #f4a261;   /* Sonnenuntergang am Wasser */
    --color-text:      #1a2b3a;
    --color-text-soft: #4a5a6a;
    --color-bg:        #ffffff;
    --color-bg-soft:   #f5f8fa;
    --color-border:    #e1e8ee;
    --color-success:   #2a9d8f;
    --shadow-sm: 0 1px 3px rgba(10, 60, 90, 0.08);
    --shadow-md: 0 4px 12px rgba(10, 60, 90, 0.10);
    --radius: 12px;
    --max-w: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                 "Helvetica Neue", Arial, sans-serif;
    font-size: 17px;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

/* ── Header / Navigation ──────────────────────────────────────── */
.site-header {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
    background-color: rgba(255,255,255,0.92);
}
.site-header__inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}
.site-header__logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--color-primary);
    line-height: 0;
}
.site-header__logo img {
    height: 52px;
    width: auto;
    display: block;
}
@media (max-width: 720px) {
    .site-header__logo img { height: 44px; }
}
.site-nav {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}
.site-nav a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.15s;
}
.site-nav a:hover { color: var(--color-primary); }
.site-nav a.active { color: var(--color-primary); }

/* ── Hero ─────────────────────────────────────────────────────── */
.hero {
    background: linear-gradient(135deg, #e8f2f7 0%, #c5dde9 100%);
    padding: 5rem 1.5rem 4rem;
    text-align: center;
}
.hero__inner {
    max-width: 880px;
    margin: 0 auto;
}
.hero h1 {
    font-size: clamp(2rem, 5vw, 3.4rem);
    line-height: 1.15;
    margin: 0 0 1.2rem;
    color: var(--color-text);
    font-weight: 800;
    letter-spacing: -0.02em;
}
.hero__sub {
    font-size: clamp(1.1rem, 2.5vw, 1.35rem);
    color: var(--color-text-soft);
    margin: 0 0 2.2rem;
    line-height: 1.5;
}
.hero__cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ── Buttons ──────────────────────────────────────────────────── */
.btn {
    display: inline-block;
    padding: 0.85rem 1.7rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: all 0.15s ease;
}
.btn--primary {
    background: var(--color-primary);
    color: white;
    box-shadow: var(--shadow-sm);
}
.btn--primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}
.btn--ghost {
    background: transparent;
    color: var(--color-primary);
    border: 1.5px solid var(--color-primary);
}
.btn--ghost:hover {
    background: var(--color-primary);
    color: white;
}

/* ── Content ──────────────────────────────────────────────────── */
.container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 4rem 1.5rem;
}
.container--narrow {
    max-width: 760px;
}

h2 {
    font-size: 2rem;
    line-height: 1.2;
    margin: 3rem 0 1rem;
    letter-spacing: -0.01em;
    color: var(--color-text);
}
h3 {
    font-size: 1.35rem;
    line-height: 1.3;
    margin: 2rem 0 0.6rem;
    color: var(--color-text);
}
p { margin: 0 0 1.2rem; }
p.lead {
    font-size: 1.2rem;
    color: var(--color-text-soft);
    line-height: 1.5;
}
a { color: var(--color-primary); }
a:hover { text-decoration: underline; }

ul, ol { padding-left: 1.5rem; }
li { margin-bottom: 0.4rem; }

blockquote {
    border-left: 4px solid var(--color-primary);
    background: var(--color-bg-soft);
    padding: 1rem 1.5rem;
    margin: 2rem 0;
    border-radius: 0 var(--radius) var(--radius) 0;
    font-style: italic;
    color: var(--color-text-soft);
}

code {
    background: var(--color-bg-soft);
    padding: 0.15em 0.4em;
    border-radius: 4px;
    font-size: 0.9em;
    color: var(--color-primary-dark);
    font-family: ui-monospace, "SF Mono", Menlo, monospace;
}

/* ── Karten / Module-Grid ────────────────────────────────────── */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2.5rem 0;
}
.card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.8rem;
    transition: transform 0.2s, box-shadow 0.2s;
    text-decoration: none;
    color: inherit;
    display: block;
}
.card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    text-decoration: none;
}
.card__icon {
    font-size: 2.2rem;
    margin-bottom: 0.8rem;
    display: block;
}
.card__title {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
    color: var(--color-primary);
}
.card__text {
    color: var(--color-text-soft);
    font-size: 0.95rem;
    margin: 0;
}

/* ── Story-Box (Highlighted Quote) ───────────────────────────── */
.story-box {
    background: var(--color-bg-soft);
    border-radius: var(--radius);
    padding: 2rem 2.5rem;
    margin: 2.5rem 0;
    border-left: 5px solid var(--color-accent);
}
.story-box p:last-child { margin-bottom: 0; }

/* ── Faktenbox / Pro-Argument ────────────────────────────────── */
.fact {
    background: linear-gradient(135deg, #f0f9f7 0%, #d9efea 100%);
    border-radius: var(--radius);
    padding: 1.5rem 2rem;
    margin: 2rem 0;
    border-left: 4px solid var(--color-success);
}

/* ── Tabelle ──────────────────────────────────────────────────── */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
}
th, td {
    text-align: left;
    padding: 0.8rem 1rem;
    border-bottom: 1px solid var(--color-border);
}
th {
    background: var(--color-bg-soft);
    font-weight: 600;
    color: var(--color-text);
}
tr:last-child td { border-bottom: none; }

/* ── Footer ───────────────────────────────────────────────────── */
.site-footer {
    background: var(--color-bg-soft);
    border-top: 1px solid var(--color-border);
    padding: 3rem 1.5rem;
    margin-top: 5rem;
    text-align: center;
    color: var(--color-text-soft);
    font-size: 0.95rem;
}
.site-footer a { color: var(--color-primary); }
.site-footer__nav {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1.2rem;
}
.site-footer__legal {
    font-size: 0.9rem;
    gap: 1rem;
    margin-bottom: 1.2rem;
    opacity: 0.85;
}

/* ── Mobile ───────────────────────────────────────────────────── */
@media (max-width: 720px) {
    .site-header__inner {
        flex-direction: column;
        gap: 0.8rem;
    }
    .site-nav { gap: 1rem; }
    .hero { padding: 3rem 1.5rem; }
    .container { padding: 2.5rem 1.5rem; }
    h2 { font-size: 1.6rem; }
}