:root {
    --bg: #f4f6f8;
    --panel: #ffffff;
    --text: #1a2330;
    --muted: #6b7785;
    --primary: #0a6dc2;
    --primary-dark: #074d8a;
    --border: #dde3ea;
    --ok: #1a8754;
    --warn: #b86e00;
    --error: #c0392b;
    --tag-red-bg: #fde6e3;
    --tag-red-fg: #a23226;
    --tag-amber-bg: #fff1d6;
    --tag-amber-fg: #8a5a00;
    --shadow: 0 1px 2px rgba(20,30,50,0.06), 0 4px 16px rgba(20,30,50,0.04);
    --radius: 10px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.5;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1200px; margin: 0 auto; padding: 24px 20px 64px; }
.muted { color: var(--muted); }
.small { font-size: 0.9em; }
.text-red { color: var(--error); }

/* Topbar */
.topbar {
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 10px 20px;
    display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
    box-shadow: var(--shadow);
}
.brand { font-weight: 700; font-size: 1.1em; display:flex; align-items:center; gap:10px; }
.brand a { color: var(--text); }
.pool-tag {
    background: var(--bg); border: 1px solid var(--border);
    padding: 2px 8px; border-radius: 999px; font-size: 0.85em; font-weight: 500; color: var(--muted);
}
.mainnav { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; margin-left: 24px; }
.mainnav a {
    color: var(--text); padding: 6px 12px; border-radius: 6px;
}
.mainnav a:hover { background: var(--bg); text-decoration:none; }
.mainnav a.active { background: var(--primary); color: #fff; }
.logout-form { display: flex; align-items: center; gap: 8px; }
.user { color: var(--muted); font-size: 0.9em; }

/* Cards / Grid */
.grid { display: grid; gap: 16px; margin-bottom: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 800px) {
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

.card {
    background: var(--panel); border-radius: var(--radius);
    padding: 16px; box-shadow: var(--shadow);
}
.card-title { color: var(--muted); font-size: 0.9em; text-transform: uppercase; letter-spacing: 0.5px; }
.card-value { font-size: 2.4em; font-weight: 700; margin: 4px 0 8px; }

/* Panels */
.panel {
    background: var(--panel); border-radius: var(--radius);
    padding: 20px; margin-bottom: 24px; box-shadow: var(--shadow);
}
.panel-compact { padding: 14px 16px; margin-bottom: 16px; }
.panel-compact .panel-head { margin-bottom: 6px; }
.panel-compact h2 { font-size: 1em; }
.panel h2 { margin: 0 0 12px; font-size: 1.15em; }
.panel-head { display:flex; justify-content:space-between; align-items:center; gap:12px; margin-bottom:12px; flex-wrap: wrap; }

/* Kompaktes Chart-Wrapper-Element. Höhe fix begrenzt, sonst zieht
   Chart.js bei "responsive: true" das Canvas ungewollt groß. */
.chart-compact { position: relative; height: 140px; }
.chart-compact canvas { height: 140px !important; }
.chart-compact.chart-medium { height: 200px; }
.chart-compact.chart-medium canvas { height: 200px !important; }

/* Wetter-Symbole */
.weather-icon {
    display: inline-block;
    font-size: 1.15em;
    line-height: 1;
    vertical-align: -0.1em;
    margin-right: 2px;
}
.weather-icon-cell {
    text-align: center;
    font-size: 1.4em;
    width: 36px;
    padding-right: 0;
}

/* Tables */
table.data { width: 100%; border-collapse: collapse; }
table.data th, table.data td {
    padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: left; font-size: 0.95em;
    vertical-align: top;
}
table.data th { background: #fafbfc; font-weight: 600; }
table.data td.num, table.data th.num { text-align: right; font-variant-numeric: tabular-nums; }
table.data tr:hover td { background: #fafbfc; }

/* Forms */
form .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-grid label { display: flex; flex-direction: column; font-size: 0.9em; color: var(--muted); gap: 4px; }
.form-grid label .full, .form-grid .full { grid-column: 1 / -1; }
input[type=text], input[type=password], input[type=number], input[type=date], textarea, select {
    width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px;
    background: #fff; font: inherit; color: var(--text);
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--primary); outline-offset: 1px; }
.inline-form { display: flex; gap: 8px; flex-wrap: wrap; align-items: end; }
.inline-form label { display: flex; flex-direction: column; font-size: 0.85em; color: var(--muted); gap:2px; }

/* Buttons */
.btn {
    display: inline-block; padding: 8px 14px; border: 1px solid var(--border);
    border-radius: 6px; background: #fff; color: var(--text); cursor: pointer; font: inherit;
}
.btn:hover { background: var(--bg); }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); }
.btn-link { background: transparent; border: none; color: var(--primary); padding: 4px 6px; }
.btn-link:hover { background: transparent; text-decoration: underline; }

/* Alerts */
.alert { padding: 12px 14px; border-radius: 6px; margin-bottom: 16px; }
.alert-ok { background: #e6f5ec; color: var(--ok); border-left: 4px solid var(--ok); }
.alert-warn { background: #fff5e1; color: var(--warn); border-left: 4px solid var(--warn); }
.alert-error { background: #fde6e3; color: var(--error); border-left: 4px solid var(--error); }

/* Tags */
.tag { display:inline-block; padding: 1px 8px; border-radius: 999px; font-size: 0.8em; margin-right: 4px; }
.tag-red { background: var(--tag-red-bg); color: var(--tag-red-fg); }
.tag-amber { background: var(--tag-amber-bg); color: var(--tag-amber-fg); }

/* Login */
.login-card {
    max-width: 420px; margin: 60px auto; background: var(--panel); padding: 28px;
    border-radius: var(--radius); box-shadow: var(--shadow);
}
.login-card h1 { margin-top: 0; }
.login-card label { display: block; margin-bottom: 12px; font-size: 0.9em; color: var(--muted); }
.login-card .btn { width: 100%; margin-top: 8px; padding: 10px; }

/* Footer */
.footer { text-align: center; color: var(--muted); padding: 24px 0; border-top: 1px solid var(--border); }
.prose { white-space: pre-line; }
details summary { cursor: pointer; color: var(--primary); }
pre { background: #0d1117; color: #fff; padding: 12px; border-radius: 6px; overflow:auto; font-size: 0.85em; }

/* Heatmap Table */
.heatmap-table td { text-align: center; font-size: 0.85em; padding: 6px 4px; min-width: 40px; }
.heatmap-table th { font-size: 0.8em; text-align: center; padding: 6px 4px; }

/* Responsive Nav */
@media (max-width: 1100px) {
    .mainnav { font-size: 0.85em; gap: 2px; }
    .mainnav a { padding: 4px 8px; }
}