/* walker.se16.ch – hellblaues Theme */
:root {
  --sky-50:  #f3f9fe;
  --sky-100: #e3f2fd;
  --sky-200: #c6e4fa;
  --sky-300: #9ed2f6;
  --sky-400: #6bb9ef;
  --sky-500: #3d9fe3;
  --sky-600: #2484cc;
  --sky-700: #1d6aa6;
  --ink:     #12344f;
  --muted:   #5a7891;
  --white:   #ffffff;
  --ok:      #1f8a5b;
  --err:     #c2413a;
  --radius:  14px;
  --shadow:  0 1px 2px rgba(18, 52, 79, .06), 0 8px 24px rgba(36, 132, 204, .08);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--sky-50);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main { flex: 1; padding-bottom: 3rem; }

a { color: var(--sky-700); }
a:hover { color: var(--sky-600); }

h1, h2, h3 { line-height: 1.25; margin: 0 0 .6rem; }
h1 { font-size: clamp(1.9rem, 4.5vw, 2.8rem); letter-spacing: -.02em; }
h2 { font-size: 1.3rem; margin-top: 2.2rem; }
h3 { font-size: 1.05rem; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
.muted { color: var(--muted); }

/* ---------- Header ---------- */
.site-header {
  background: rgba(255, 255, 255, .85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--sky-200);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 64px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: .6rem; font-weight: 700; font-size: 1.1rem; color: var(--ink); text-decoration: none; }
.brand-dim { color: var(--sky-600); font-weight: 500; }
.nav { display: flex; gap: .25rem; flex-wrap: wrap; }
.nav a {
  padding: .4rem .85rem;
  border-radius: 999px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
}
.nav a:hover { background: var(--sky-100); }
.nav a[aria-current="page"] { background: var(--sky-500); color: var(--white); }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(circle at 85% 20%, rgba(255, 255, 255, .55) 0, transparent 40%),
    linear-gradient(135deg, var(--sky-200) 0%, var(--sky-300) 45%, var(--sky-400) 100%);
  padding: 4.5rem 0 5rem;
  border-bottom: 1px solid var(--sky-300);
}
.eyebrow {
  display: inline-block;
  margin: 0 0 .8rem;
  padding: .15rem .7rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, .7);
  color: var(--sky-700);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.lead { font-size: 1.1rem; max-width: 46rem; color: #23506f; }
/* Besucher-Karte im Hero */
.visitor {
  margin: 1.4rem 0 1.6rem;
  max-width: 46rem;
  padding: 1rem 1.25rem;
  background: rgba(255, 255, 255, .78);
  border: 1px solid rgba(255, 255, 255, .9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.visitor-row { display: grid; grid-template-columns: 10.5rem 1fr; gap: .25rem 1rem; padding: .45rem 0; border-bottom: 1px solid var(--sky-100); }
.visitor-row:last-of-type { border-bottom: 0; }
.visitor dt { color: var(--muted); font-weight: 500; }
.visitor dd { margin: 0; font-weight: 600; overflow-wrap: anywhere; }
.visitor-note { margin: .5rem 0 0; font-size: .8rem; color: var(--muted); }
.mono { font-family: ui-monospace, "Cascadia Mono", Consolas, "SF Mono", Menlo, monospace; font-size: .95em; }
.tag {
  display: inline-block;
  margin: 0 .35rem 0 .1rem;
  padding: 0 .45rem;
  border-radius: 6px;
  background: var(--sky-100);
  color: var(--sky-700);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .03em;
  vertical-align: .1em;
}

.hero-actions { display: flex; gap: .75rem; flex-wrap: wrap; margin-top: 1.6rem; }

.page-head { background: linear-gradient(135deg, var(--sky-100), var(--sky-200)); padding: 2.6rem 0 2.2rem; border-bottom: 1px solid var(--sky-200); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: .7rem 1.3rem;
  border: 0;
  border-radius: 10px;
  background: var(--sky-600);
  color: var(--white);
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(36, 132, 204, .3);
  transition: background .15s, transform .15s;
}
.btn:hover { background: var(--sky-700); color: var(--white); transform: translateY(-1px); }
.btn:focus-visible, .nav a:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid var(--sky-300); outline-offset: 2px; }
.btn-ghost { background: rgba(255, 255, 255, .75); color: var(--sky-700); box-shadow: none; }
.btn-ghost:hover { background: var(--white); color: var(--sky-700); }

/* ---------- Stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: -2.5rem;
}
.stat {
  background: var(--white);
  border: 1px solid var(--sky-200);
  border-radius: var(--radius);
  padding: 1.2rem 1.4rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}
.stat-num { font-size: 2rem; font-weight: 700; color: var(--sky-600); font-variant-numeric: tabular-nums; }
.stat-label { color: var(--muted); font-size: .92rem; }

/* ---------- Cards ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; }
.card, .panel, .entry {
  background: var(--white);
  border: 1px solid var(--sky-200);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card { padding: 1.3rem; }
.card p { margin: 0; color: var(--muted); }
.card-icon {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: var(--sky-100);
  color: var(--sky-600);
  font-weight: 800;
  font-size: 1.2rem;
  margin-bottom: .8rem;
}

.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.section-head h2 { margin-bottom: .8rem; }

/* ---------- Guestbook ---------- */
.entries { display: grid; gap: .8rem; }
.entry { padding: 1rem 1.2rem; }
.entry header { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: .3rem; }
.entry time { color: var(--muted); font-size: .88rem; }
.entry p { margin: 0; overflow-wrap: anywhere; }

.two-col { display: grid; grid-template-columns: minmax(0, 380px) minmax(0, 1fr); gap: 2rem; align-items: start; }
.two-col > section > h2:first-child { margin-top: 2.2rem; }
.panel { padding: 1.4rem; margin-top: 2rem; }
.panel h2 { margin-top: 0; }
.two-col .panel { position: sticky; top: 84px; }

.form { display: grid; gap: .35rem; }
.form label { font-weight: 600; font-size: .92rem; margin-top: .5rem; }
.form input, .form textarea {
  width: 100%;
  font: inherit;
  color: var(--ink);
  padding: .65rem .8rem;
  border: 1px solid var(--sky-300);
  border-radius: 10px;
  background: var(--sky-50);
}
.form textarea { resize: vertical; min-height: 120px; }
.form .btn { justify-self: start; margin-top: .4rem; }
.hint { margin: 0; font-size: .85rem; color: var(--muted); }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.alert { padding: .7rem .9rem; border-radius: 10px; font-weight: 500; margin: 0 0 .6rem; }
.alert-ok { background: #e3f6ec; color: var(--ok); border: 1px solid #b7e4cb; }
.alert-error { background: #fdecea; color: var(--err); border: 1px solid #f5c2bd; }

.pager { display: flex; gap: .35rem; flex-wrap: wrap; margin-top: 1.2rem; }
.pager a { padding: .3rem .75rem; border-radius: 8px; border: 1px solid var(--sky-200); background: var(--white); text-decoration: none; }
.pager a[aria-current="page"] { background: var(--sky-500); border-color: var(--sky-500); color: var(--white); }

/* ---------- Server ---------- */
.info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 0 1rem; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: .45rem 1rem; margin: 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-weight: 600; overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }

.chart { width: 100%; height: auto; display: block; }
.chart-axis { stroke: var(--sky-200); stroke-width: 1.5; }
.chart-bar { fill: var(--sky-300); }
.chart-bar.is-today { fill: var(--sky-500); }
.chart-val { fill: var(--ink); font-size: 13px; font-weight: 600; }
.chart-lbl { fill: var(--muted); font-size: 12px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--sky-100); border-top: 1px solid var(--sky-200); color: var(--muted); font-size: .9rem; }
.footer-inner { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-top: 1.2rem; padding-bottom: 1.2rem; }
.footer-inner p { margin: 0; }

@media (max-width: 760px) {
  .two-col { grid-template-columns: 1fr; gap: 0; }
  .two-col .panel { position: static; }
  .hero { padding: 3rem 0 4rem; }
  .visitor-row { grid-template-columns: 1fr; gap: 0; }
}