/* REDesign – mobile Solaranlagen. Dunkles, technisches, ruhiges Design. */

:root {
  --bg: #0c110f;
  --surface: #101815;
  --surface-2: #16211c;
  --line: #223129;
  --ink: #e8f0ec;
  --ink-2: #9db4a8;
  --ink-3: #5c7267;
  --accent: #37a873;
  --accent-bright: #4cc38a;
  --ertrag: #37a873;
  --verbrauch: #4b9dd1;
  --good: #37a873;
  --warn: #d2a24c;
  --bad: #d2665c;
  --radius: 14px;
  color-scheme: dark;
}

/* Farb-Theme „Rot/Orange“ – Farbwelt des REdesign-Logos. Status-Farben
 * (passt/knapp/passt nicht) bleiben in beiden Themes reserviert. */
html.theme-rot {
  --accent: #d9532f;
  --accent-bright: #e8744e;
  --ertrag: #cf7434;
  --line: #33291f;
  --surface-2: #211a14;
  --surface: #181310;
  --bg: #110d0a;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1060px; margin: 0 auto; padding: 0 1.25rem; }

h1, h2, h3 { font-weight: 650; letter-spacing: -0.015em; line-height: 1.2; }
h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); margin: 3.2rem 0 0.4rem; }
h3 { font-size: 1.05rem; margin-bottom: 0.6rem; }
em { font-style: normal; color: var(--accent-bright); }
small { color: var(--ink-3); font-weight: 400; }

.section-lede { color: var(--ink-2); max-width: 46rem; margin-bottom: 1.6rem; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-row { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: center; gap: 0.55rem; text-decoration: none; color: var(--ink); }
.logo-mark { width: 30px; height: 30px; color: var(--accent-bright); flex-shrink: 0; }
.theme-switch {
  display: inline-flex; align-items: center; gap: 0.35rem; margin-left: 1.2rem;
  background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 3px;
}
.theme-switch button {
  width: 22px; height: 22px; border-radius: 50%; border: 2px solid transparent;
  cursor: pointer; padding: 0; background: var(--dot, #37a873);
}
.theme-switch button[data-theme="gruen"] { --dot: #37a873; }
.theme-switch button[data-theme="rot"] { --dot: #d9532f; }
.theme-switch button[aria-pressed="true"] { border-color: var(--ink); }
.brand-name { font-weight: 700; letter-spacing: 0.01em; }
.brand-sub { color: var(--ink-3); font-size: 0.8rem; }
.site-nav { display: flex; gap: 1.4rem; }
.site-nav a { color: var(--ink-2); text-decoration: none; font-size: 0.95rem; }
.site-nav a:hover { color: var(--ink); }

/* ---------- Hero ---------- */
.hero { padding: 5.5rem 0 4rem; border-bottom: 1px solid var(--line);
  background:
    radial-gradient(1200px 500px at 75% -10%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 60%),
    radial-gradient(900px 400px at 10% 110%, color-mix(in srgb, var(--verbrauch) 8%, transparent), transparent 60%);
}
.hero-kicker { color: var(--accent-bright); font-size: 0.9rem; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 1rem; }
.hero h1 { font-size: clamp(1.9rem, 5vw, 3.1rem); margin-bottom: 1.1rem; }
.hero-lede { color: var(--ink-2); max-width: 44rem; font-size: 1.08rem; margin-bottom: 2rem; }
.hero-actions { display: flex; gap: 0.8rem; flex-wrap: wrap; }

.btn {
  display: inline-block; padding: 0.7rem 1.4rem; border-radius: 10px;
  font-size: 1rem; font-weight: 600; text-decoration: none; cursor: pointer;
  border: 1px solid transparent; transition: filter 120ms ease;
}
.btn-primary { background: var(--accent); color: #06130d; }
.btn-primary:hover { filter: brightness(1.12); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink-3); }
.linklike { background: none; border: none; color: var(--ink-2); cursor: pointer; font: inherit; text-decoration: underline; }

/* ---------- Planer ---------- */
.planner { padding-bottom: 3rem; }
.step-num {
  display: inline-grid; place-items: center; width: 1.7em; height: 1.7em;
  border-radius: 50%; background: var(--surface-2); border: 1px solid var(--line);
  color: var(--accent-bright); font-size: 0.75em; margin-right: 0.5rem; vertical-align: 0.12em;
}

.field-group { display: grid; gap: 1.4rem; }
.field-label { display: block; font-weight: 600; margin-bottom: 0.5rem; }
.field-note { color: var(--ink-3); font-size: 0.88rem; margin-top: 0.4rem; }

.chip-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chip {
  padding: 0.45rem 0.95rem; border-radius: 999px; cursor: pointer;
  background: var(--surface); border: 1px solid var(--line); color: var(--ink-2);
  font-size: 0.92rem; font-family: inherit; transition: all 100ms ease;
}
.chip:hover { border-color: var(--ink-3); color: var(--ink); }
.chip[aria-pressed="true"], .chip[aria-checked="true"] {
  background: color-mix(in srgb, var(--accent) 18%, var(--surface));
  border-color: var(--accent); color: var(--ink);
}
.chip-month { min-width: 3.2em; text-align: center; padding-inline: 0.4rem; }

.slider-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.6rem; margin-top: 0.4rem; }
output { color: var(--accent-bright); font-weight: 650; margin-left: 0.5rem; font-variant-numeric: tabular-nums; }
input[type="range"] { width: 100%; accent-color: var(--accent); height: 2rem; }

/* ---------- Ergebnis ---------- */
.result-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 1.2rem; margin: 1.2rem 0; }
@media (max-width: 800px) { .result-grid { grid-template-columns: 1fr; } }

.panel {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.3rem 1.4rem; margin-bottom: 1.2rem;
}
.panel-note { color: var(--ink-3); font-size: 0.85rem; margin-top: 0.8rem; }
.systembild svg { width: 100%; height: auto; display: block; }

.verdict {
  border-radius: 10px; padding: 1rem 1.1rem; margin-bottom: 1.1rem;
  border: 1px solid; display: flex; gap: 0.75rem; align-items: flex-start;
}
.verdict .icon { font-size: 1.3rem; line-height: 1.3; }
.verdict-good { border-color: var(--good); background: color-mix(in srgb, var(--good) 12%, var(--surface)); }
.verdict-warn { border-color: var(--warn); background: color-mix(in srgb, var(--warn) 12%, var(--surface)); }
.verdict-bad  { border-color: var(--bad);  background: color-mix(in srgb, var(--bad) 12%, var(--surface)); }
.verdict h3 { margin-bottom: 0.25rem; }
.verdict p { color: var(--ink-2); font-size: 0.95rem; }

.kpi-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.9rem 1.2rem; }
.kpi-row div { background: var(--surface-2); border-radius: 10px; padding: 0.7rem 0.9rem; }
.kpi-row dt { color: var(--ink-3); font-size: 0.8rem; }
.kpi-row dd { font-size: 1.25rem; font-weight: 650; font-variant-numeric: tabular-nums; }
.kpi-row dd small { font-size: 0.75em; font-weight: 400; }

/* ---------- Chart ---------- */
.chart-head { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 0.5rem; }
.legend { display: flex; gap: 1.1rem; font-size: 0.85rem; color: var(--ink-2); }
.legend-item { display: inline-flex; align-items: center; gap: 0.4rem; }
.swatch { width: 12px; height: 12px; border-radius: 3px; display: inline-block; }
.swatch-ertrag { background: var(--ertrag); }
.swatch-verbrauch { background: var(--verbrauch); }
#chart svg { width: 100%; height: auto; display: block; margin-top: 0.6rem; }
#chart .bar { transition: opacity 100ms ease; }
#chart .month-inactive .bar { opacity: 0.28; }
#chart text { font-family: inherit; }
#chart .tick-label { fill: var(--ink-3); font-size: 11px; }
#chart .grid-line { stroke: var(--line); stroke-width: 1; }
#chart .hover-rect { fill: transparent; cursor: default; }
#chart .hover-rect:hover { fill: rgba(232,240,236,0.05); }

.chart-tip {
  position: fixed; z-index: 50; pointer-events: none;
  background: var(--surface-2); border: 1px solid var(--line); border-radius: 8px;
  padding: 0.5rem 0.7rem; font-size: 0.85rem; color: var(--ink);
  box-shadow: 0 6px 24px rgba(0,0,0,0.45); display: none; max-width: 240px;
}
.chart-tip .tip-month { font-weight: 650; margin-bottom: 0.15rem; }
.chart-tip .tip-line { color: var(--ink-2); display: flex; align-items: center; gap: 0.4rem; }
.chart-tip .tip-line strong { color: var(--ink); font-variant-numeric: tabular-nums; margin-left: auto; padding-left: 0.6rem; }

.table-view { margin-top: 0.9rem; color: var(--ink-2); }
.table-view summary { cursor: pointer; font-size: 0.9rem; }
.table-view table { border-collapse: collapse; margin-top: 0.7rem; font-size: 0.88rem; width: 100%; }
.table-view th, .table-view td { border: 1px solid var(--line); padding: 0.35rem 0.6rem; text-align: right; font-variant-numeric: tabular-nums; }
.table-view th:first-child, .table-view td:first-child { text-align: left; }

.annahmen-panel ul { list-style: none; display: grid; gap: 0.45rem; }
.annahmen-panel li { color: var(--ink-2); font-size: 0.93rem; padding-left: 1.2rem; position: relative; }
.annahmen-panel li::before { content: "–"; position: absolute; left: 0; color: var(--accent); }

/* ---------- Ansatz / Beratung ---------- */
.approach { border-block: 1px solid var(--line); background: var(--surface); padding: 0.5rem 0 3.2rem; }
.approach-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1.1rem; margin-top: 1.6rem; }
.approach-card { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.2rem 1.3rem; }
.approach-card p { color: var(--ink-2); font-size: 0.95rem; }

.consult { padding: 0.5rem 0 4rem; }

/* ---------- Footer / Dialog ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 1.4rem 0; color: var(--ink-3); font-size: 0.9rem; }
.footer-row { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.6rem; }
.footer-row a { color: var(--ink-3); margin-left: 1rem; }

dialog {
  margin: auto; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--surface); color: var(--ink); max-width: 620px; width: calc(100% - 2rem);
  max-height: 85vh; padding: 0;
}
dialog::backdrop { background: rgba(0,0,0,0.6); }
.dialog-inner { padding: 1.6rem 1.8rem; overflow-y: auto; max-height: 85vh; }
.dialog-inner h3 { margin-top: 1.2rem; }
.dialog-inner p { color: var(--ink-2); margin-top: 0.3rem; }
.dialog-inner form { margin-top: 1.4rem; }

@media (max-width: 640px) {
  .site-nav { display: none; }
  .kpi-row { grid-template-columns: 1fr; }
}