/* Home Bachweg — Energiemanagement CSS */
:root {
  --bg: #0f172a;
  --bg2: #1e293b;
  --bg3: #334155;
  --card: #1e293b;
  --border: #334155;
  --text: #f1f5f9;
  --text2: #94a3b8;
  --pv: #f59e0b;
  --pv2: #fbbf24;
  --bat: #10b981;
  --bat2: #34d399;
  --grid-in: #ef4444;
  --grid-out: #10b981;
  --load: #6366f1;
  --cheap: #10b981;
  --expensive: #ef4444;
  --accent: #3b82f6;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; background: var(--bg); color: var(--text); font-family: 'Inter', 'Segoe UI', system-ui, sans-serif; font-size: 14px; }

/* ─── NAVBAR ─────────────────────────────────── */
.navbar {
  display: flex; align-items: center; gap: 16px;
  background: var(--bg2); border-bottom: 1px solid var(--border);
  padding: 0 20px; height: 52px; position: sticky; top: 0; z-index: 100;
}
.navbar-brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 16px; color: var(--pv); white-space: nowrap; }
.navbar-tabs { display: flex; gap: 4px; flex: 1; }
.tab-btn { padding: 6px 14px; border-radius: 6px; text-decoration: none; color: var(--text2); font-size: 13px; transition: all .15s; }
.tab-btn:hover { background: var(--bg3); color: var(--text); }
.tab-btn.active { background: var(--accent); color: #fff; font-weight: 600; }
.navbar-right { display: flex; align-items: center; gap: 8px; }
.user-badge { background: var(--bg3); padding: 3px 10px; border-radius: 20px; font-size: 12px; color: var(--text2); }

/* ─── CONTAINER ─────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 16px; }
.mt-2 { margin-top: 12px; }

/* ─── TABS ───────────────────────────────────── */
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ─── CARDS ──────────────────────────────────── */
.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.card-header { padding: 10px 16px; background: var(--bg3); font-weight: 600; font-size: 13px; color: var(--text2); }
.card-body { padding: 16px; }

/* ─── KPI GRID ───────────────────────────────── */
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
@media (max-width: 768px) { .kpi-grid { grid-template-columns: repeat(2, 1fr); } }
.kpi-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  padding: 16px; text-align: center; transition: transform .2s;
}
.kpi-card:hover { transform: translateY(-2px); }
.kpi-icon { font-size: 28px; margin-bottom: 6px; }
.kpi-value { font-size: 26px; font-weight: 800; line-height: 1; }
.kpi-label { font-size: 11px; color: var(--text2); margin-top: 4px; text-transform: uppercase; letter-spacing: .5px; }
.kpi-sub { font-size: 11px; color: var(--text2); margin-top: 4px; }
.kpi-card.pv .kpi-value { color: var(--pv); }
.kpi-card.battery .kpi-value { color: var(--bat); }
.kpi-card.grid .kpi-value { color: var(--text); }
.kpi-card.load .kpi-value { color: var(--load); }

/* SOC Bar */
.soc-bar { background: var(--bg3); border-radius: 4px; height: 6px; margin-top: 8px; overflow: hidden; }
.soc-fill { height: 100%; background: var(--bat); border-radius: 4px; transition: width .5s; }

/* ─── ENERGIE FLUSS ──────────────────────────── */
.energy-flow { display: flex; align-items: center; justify-content: center; gap: 20px; padding: 10px 0; }
.energy-flow-row2 { display: flex; justify-content: center; gap: 40px; margin-top: 12px; border-top: 1px solid var(--border); padding-top: 12px; }
.flow-node { text-align: center; min-width: 80px; }
.flow-icon { font-size: 24px; }
.flow-val { font-size: 14px; font-weight: 700; color: var(--pv); }
.flow-label { font-size: 11px; color: var(--text2); }
.flow-node.offline .flow-val { color: var(--text2); }
.flow-arrows { color: var(--text2); font-size: 20px; }

/* ─── PRICE BANNER ───────────────────────────── */
.price-banner { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.price-current { display: flex; align-items: baseline; gap: 4px; }
.price-val { font-size: 36px; font-weight: 800; }
.price-unit { font-size: 14px; color: var(--text2); }
.price-info { color: var(--text2); font-size: 13px; flex: 1; }
.price-badge { padding: 4px 12px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.price-badge.cheap { background: rgba(16,185,129,.2); color: var(--bat); border: 1px solid var(--bat); }
.price-badge.expensive { background: rgba(239,68,68,.2); color: var(--grid-in); border: 1px solid var(--grid-in); }

/* ─── CHEAP HOURS ────────────────────────────── */
.cheap-hours-grid { display: flex; gap: 8px; flex-wrap: wrap; }
.cheap-hour { background: rgba(16,185,129,.15); border: 1px solid var(--bat); border-radius: 8px; padding: 8px 14px; text-align: center; }
.cheap-hour .ch-time { font-weight: 700; font-size: 15px; color: var(--bat); }
.cheap-hour .ch-price { font-size: 11px; color: var(--text2); }

/* ─── WATTPILOT ──────────────────────────────── */
.wp-status-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
@media (max-width: 600px) { .wp-status-grid { grid-template-columns: 1fr; } }
.wp-item { background: var(--bg3); border-radius: 8px; padding: 12px; }
.wp-label { font-size: 11px; color: var(--text2); text-transform: uppercase; }
.wp-val { font-size: 18px; font-weight: 700; margin-top: 4px; }
.wp-note { margin-top: 12px; padding: 10px; background: rgba(251,191,36,.1); border: 1px solid var(--pv); border-radius: 8px; font-size: 12px; color: var(--pv2); }
.offline-badge { display: inline-block; background: rgba(100,116,139,.2); border: 1px solid var(--text2); border-radius: 20px; padding: 4px 12px; font-size: 12px; color: var(--text2); margin-bottom: 8px; }
.text-muted { color: var(--text2); font-size: 13px; line-height: 1.5; }
.offline-card .card-header { color: var(--text2); }

/* Recommendation */
.rec-item { background: var(--bg3); border-radius: 8px; padding: 12px; margin-bottom: 8px; display: flex; align-items: center; gap: 12px; }
.rec-item.priority-1 { border-left: 3px solid var(--pv); }
.rec-item.priority-2 { border-left: 3px solid var(--bat); }
.rec-item.priority-3 { border-left: 3px solid var(--accent); }
.rec-action { font-weight: 700; font-size: 15px; }
.rec-reason { font-size: 12px; color: var(--text2); }
.rec-power { font-size: 13px; font-weight: 600; color: var(--pv); margin-left: auto; }

/* ─── SIMULATION ─────────────────────────────── */
.sim-inputs { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.form-group-inline { display: flex; flex-direction: column; gap: 4px; }
.form-group-inline label { font-size: 12px; color: var(--text2); }
.form-group-inline input { background: var(--bg3); border: 1px solid var(--border); color: var(--text); padding: 7px 10px; border-radius: 6px; font-size: 14px; width: 140px; }
.sim-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
@media (max-width: 600px) { .sim-grid { grid-template-columns: 1fr; } }
.sim-card { background: var(--bg3); border-radius: 10px; padding: 16px; text-align: center; }
.sim-card.saving { background: rgba(16,185,129,.1); border: 1px solid var(--bat); }
.sim-title { font-size: 11px; color: var(--text2); text-transform: uppercase; margin-bottom: 8px; }
.sim-val { font-size: 28px; font-weight: 800; }
.sim-card.current .sim-val { color: var(--grid-in); }
.sim-card.flex .sim-val { color: var(--pv); }
.sim-card.saving .sim-val { color: var(--bat); }
.sim-sub { font-size: 12px; color: var(--text2); }

/* ─── BUTTONS ────────────────────────────────── */
.btn { display: inline-block; padding: 7px 16px; border-radius: 6px; border: none; cursor: pointer; font-size: 13px; font-weight: 600; text-decoration: none; transition: all .15s; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #2563eb; }
.btn-sm { padding: 4px 10px; font-size: 12px; background: var(--bg3); color: var(--text2); border: 1px solid var(--border); }
.btn-sm:hover { color: var(--text); }
.btn-block { width: 100%; display: block; text-align: center; padding: 10px; }

/* ─── FOOTER ─────────────────────────────────── */
.footer { text-align: center; padding: 12px; color: var(--text2); font-size: 11px; border-top: 1px solid var(--border); margin-top: 20px; display: flex; justify-content: space-between; padding-inline: 20px; }

/* ─── LOGIN ──────────────────────────────────── */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--bg); }
.login-box { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 32px; width: 100%; max-width: 380px; }
.login-logo { text-align: center; margin-bottom: 24px; }
.login-logo h1 { font-size: 22px; color: var(--pv); margin-top: 8px; }
.login-logo p { color: var(--text2); font-size: 13px; }
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 12px; color: var(--text2); margin-bottom: 4px; }
.form-group input { width: 100%; background: var(--bg3); border: 1px solid var(--border); color: var(--text); padding: 9px 12px; border-radius: 6px; font-size: 14px; }
.form-group input:focus { outline: none; border-color: var(--accent); }
.alert-error { background: rgba(239,68,68,.15); border: 1px solid var(--grid-in); color: var(--grid-in); padding: 8px 12px; border-radius: 6px; margin-bottom: 14px; font-size: 13px; }

/* Chart */
canvas { max-height: 250px; }

/* ─── ENERGIEFLUSS ───────────────────────────── */
.eflow-wrap { display: flex; flex-direction: column; gap: 16px; }
.eflow-row { display: flex; justify-content: center; align-items: center; gap: 24px; flex-wrap: wrap; }
.eflow-sources { justify-content: center; }
.eflow-center { gap: 32px; }

.eflow-node {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 12px; padding: 14px 20px;
  text-align: center; min-width: 110px; transition: transform .2s;
}
.eflow-node:hover { transform: translateY(-2px); }
.en-icon { font-size: 28px; margin-bottom: 4px; }
.en-val { font-size: 16px; font-weight: 800; color: var(--pv); }
.en-label { font-size: 11px; color: var(--text2); margin-top: 2px; }
.en-sub { font-size: 11px; margin-top: 2px; }
.en-offline { color: var(--text2); }
.en-charging { color: var(--bat); }
.en-active { color: var(--pv); }

/* Hub (Mitte) */
.eflow-hub { display: flex; align-items: center; justify-content: center; }
.hub-circle {
  width: 100px; height: 100px; border-radius: 50%;
  background: radial-gradient(circle, #1e3a5f 0%, #0f172a 100%);
  border: 2px solid var(--pv); display: flex; flex-direction: column;
  align-items: center; justify-content: center;
}
.hub-val { font-size: 16px; font-weight: 800; color: var(--pv); }
.hub-label { font-size: 10px; color: var(--text2); }

/* Node color states */
#en-gen24 { border-color: var(--pv); }
#en-symo  { border-color: var(--pv); }
#en-bat.bat-charging { border-color: var(--bat); }
#en-bat.bat-discharging { border-color: #f59e0b; }
#en-grid.grid-in  { border-color: var(--grid-in); }
#en-grid.grid-out { border-color: var(--bat); }

/* Monthly stats */
.monthly-stats { display: flex; gap: 8px; flex-wrap: wrap; }
.month-pill {
  background: var(--bg3); border-radius: 8px; padding: 6px 10px;
  font-size: 11px; text-align: center; min-width: 70px;
}
.month-pill .mp-val { font-weight: 700; font-size: 14px; color: var(--pv); }
.month-pill .mp-label { color: var(--text2); }