:root {
  --bg: #05070b;
  --bg-2: #0a1018;
  --panel: rgba(16, 22, 33, .82);
  --panel-solid: #101621;
  --panel-2: rgba(21, 30, 44, .72);
  --border: rgba(255,255,255,.09);
  --border-strong: rgba(255,255,255,.15);
  --text: #f4f7fb;
  --muted: #8d9bae;
  --muted-2: #64748b;
  --solar: #f7c948;
  --green: #21d07a;
  --cyan: #33c7f7;
  --blue: #5b8cff;
  --purple: #a78bfa;
  --orange: #fb923c;
  --red: #f05252;
  --shadow: 0 24px 80px rgba(0,0,0,.42);
  --radius-xl: 28px;
  --radius-lg: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 18% 0%, rgba(51,199,247,.16), transparent 30%),
    radial-gradient(circle at 92% 8%, rgba(247,201,72,.12), transparent 28%),
    radial-gradient(circle at 55% 98%, rgba(33,208,122,.09), transparent 30%),
    linear-gradient(180deg, #05070b 0%, #080d14 42%, #05070b 100%);
  overflow-x: hidden;
}
body:before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.75), transparent 80%);
}

.app-shell { display: grid; grid-template-columns: 280px minmax(0, 1fr); min-height: 100vh; }
.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 1.2rem;
  background: rgba(5, 9, 15, .72);
  border-right: 1px solid var(--border);
  backdrop-filter: blur(24px);
}
.main-content { max-width: 1640px; width: 100%; padding: 1.25rem; }

.brand-block { display: flex; align-items: center; gap: .85rem; padding: .45rem; }
.brand-mark {
  width: 46px; height: 46px; border-radius: 16px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(247,201,72,.95), rgba(33,208,122,.95));
  color: #04100b;
  box-shadow: 0 0 45px rgba(33,208,122,.28);
  font-size: 1.25rem;
}
.brand-title { font-weight: 900; letter-spacing: -.04em; font-size: 1.15rem; }
.brand-subtitle { color: var(--muted); font-size: .78rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.nav-stack { display: grid; gap: .45rem; margin-top: .4rem; }
.nav-item {
  color: var(--muted); text-decoration: none;
  display: flex; align-items: center; gap: .75rem;
  padding: .78rem .9rem;
  border-radius: 16px;
  font-weight: 800;
  border: 1px solid transparent;
  transition: .18s ease;
}
.nav-item:hover, .nav-item.active { color: var(--text); background: rgba(255,255,255,.07); border-color: var(--border); }
.nav-item i { color: var(--cyan); }
.sidebar-card, .glass-card, .metric-card, .hero-panel {
  background: linear-gradient(180deg, rgba(18,25,37,.84), rgba(11,16,25,.78));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px);
}
.sidebar-card { border-radius: 22px; padding: 1rem; box-shadow: 0 16px 50px rgba(0,0,0,.28); }

.hero-panel { border-radius: var(--radius-xl); padding: 1.15rem; overflow: hidden; position: relative; }
.hero-panel:before {
  content: ""; position: absolute; inset: -40% -20% auto auto; width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(247,201,72,.22), transparent 58%);
  pointer-events: none;
}
.hero-content { position: relative; display: flex; justify-content: space-between; gap: 1.25rem; align-items: center; }
.hero-content h1 { margin: .1rem 0 0; font-size: clamp(2rem, 4vw, 4.4rem); line-height: .95; letter-spacing: -.07em; font-weight: 900; }
.hero-output-card {
  min-width: 360px;
  display: flex; align-items: center; gap: 1.1rem;
  padding: .85rem;
  border-radius: 26px;
  background: rgba(3,7,12,.46);
  border: 1px solid var(--border);
}
.output-ring {
  width: 150px; height: 150px; border-radius: 999px;
  display: grid; place-items: center;
  background:
    radial-gradient(circle at center, rgba(7,10,16,.95) 0 57%, transparent 58%),
    conic-gradient(from -40deg, var(--solar), var(--green), var(--cyan), rgba(255,255,255,.08), var(--solar));
  box-shadow: inset 0 0 30px rgba(255,255,255,.03), 0 0 60px rgba(247,201,72,.11);
}
.output-ring span { display: block; font-size: 2rem; font-weight: 900; letter-spacing: -.05em; text-align: center; }
.output-ring small { display: block; color: var(--muted); font-size: .75rem; text-align: center; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.hero-kwh { font-size: 2rem; font-weight: 900; letter-spacing: -.05em; }

.eyebrow, .mini-label { color: var(--muted); font-size: .76rem; font-weight: 900; text-transform: uppercase; letter-spacing: .11em; }
.muted-small, .last-sync, .metric-sub { color: var(--muted); font-size: .86rem; }
.soft-pill {
  display: inline-flex; align-items: center; gap: .4rem;
  color: #dbe7f6;
  background: rgba(255,255,255,.07);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .44rem .72rem;
  font-size: .82rem;
  font-weight: 800;
}
.soft-pill code { color: #dbe7f6; }
.status-light { width: 11px; height: 11px; border-radius: 999px; background: var(--muted-2); display:inline-block; }
.status-light.green { background: var(--green); box-shadow: 0 0 22px rgba(33,208,122,.75); }
.status-light.yellow { background: var(--solar); box-shadow: 0 0 22px rgba(247,201,72,.75); }
.status-light.red { background: var(--red); box-shadow: 0 0 22px rgba(240,82,82,.75); }

.kpi-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 1rem; }
.metric-card { position: relative; overflow: hidden; border-radius: var(--radius-lg); padding: 1rem; min-height: 160px; }
.metric-card:after { content: ""; position: absolute; inset: auto -55px -65px auto; width: 160px; height: 160px; border-radius: 999px; opacity: .18; background: var(--cyan); }
.metric-icon { width: 38px; height: 38px; border-radius: 14px; display:grid; place-items:center; background: rgba(255,255,255,.08); margin-bottom: 1rem; }
.metric-value { font-size: clamp(1.35rem, 2.2vw, 2.15rem); line-height: 1; font-weight: 900; letter-spacing: -.055em; margin: .45rem 0 .35rem; }
.accent-solar .metric-icon, .accent-solar:after { color: var(--solar); background-color: rgba(247,201,72,.13); }
.accent-year .metric-icon, .accent-year:after { color: var(--purple); background-color: rgba(167,139,250,.13); }
.accent-export .metric-icon, .accent-export:after { color: var(--green); background-color: rgba(33,208,122,.13); }
.accent-import .metric-icon, .accent-import:after { color: var(--orange); background-color: rgba(251,146,60,.13); }
.accent-money .metric-icon, .accent-money:after { color: var(--cyan); background-color: rgba(51,199,247,.13); }
.accent-ev .metric-icon, .accent-ev:after { color: var(--blue); background-color: rgba(91,140,255,.13); }

.glass-card { border-radius: var(--radius-xl); padding: 1.05rem; overflow: hidden; }
.section-head { display:flex; justify-content:space-between; align-items:flex-start; gap: 1rem; margin-bottom: 1rem; }
.section-head.compact { margin-bottom: .75rem; }
.section-head h2, .glass-card h2 { margin: .1rem 0 0; font-size: 1.35rem; font-weight: 900; letter-spacing: -.045em; }
.chart-stat { text-align:right; border:1px solid var(--border); border-radius: 18px; padding:.55rem .75rem; background: rgba(255,255,255,.05); }
.chart-stat span { display:block; font-weight: 900; font-size: 1.15rem; }
.chart-stat small { color: var(--muted); font-weight: 800; }
.chart-wrap { height: 390px; }
.small-chart-wrap { height: 300px; }

.self-meter { display:flex; align-items:center; gap: 1rem; }
.self-meter-ring {
  width: 120px; height: 120px; border-radius: 999px; flex: 0 0 auto;
  display:grid; place-items:center;
  background:
    radial-gradient(circle at center, rgba(7,10,16,.96) 0 61%, transparent 62%),
    conic-gradient(var(--green) var(--self, 0%), rgba(255,255,255,.08) 0);
}
.self-meter-ring span { font-size: 1.75rem; font-weight: 900; letter-spacing: -.06em; }
.progress-modern { height: 12px; border-radius: 999px; background: rgba(255,255,255,.08); overflow: hidden; }
.progress-modern > div { height:100%; width:0%; border-radius:999px; background: linear-gradient(90deg, var(--cyan), var(--green)); box-shadow: 0 0 30px rgba(33,208,122,.35); }
.split-stats { display:grid; grid-template-columns: 1fr 1fr; gap: .8rem; }
.split-stats > div, .flow-summary > div { padding: .85rem; border: 1px solid var(--border); background: rgba(255,255,255,.045); border-radius: 18px; }
.split-stats strong { display:block; font-size: 1.35rem; line-height: 1.1; letter-spacing: -.04em; }

.energy-flow { display:grid; grid-template-columns: 1fr 70px 1fr 70px 1fr; align-items:center; gap:.25rem; min-height: 250px; }
.flow-node { min-height: 150px; border:1px solid var(--border); border-radius:26px; background: rgba(255,255,255,.055); display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center; gap:.3rem; }
.flow-node i { font-size: 2rem; }
.flow-node span { color: var(--muted); font-weight: 900; text-transform: uppercase; letter-spacing: .1em; font-size: .74rem; }
.flow-node strong { font-size: 1.55rem; letter-spacing: -.05em; }
.flow-node.solar i { color: var(--solar); }
.flow-node.home i { color: var(--cyan); }
.flow-node.grid i { color: var(--green); }
.flow-line { height: 3px; background: rgba(255,255,255,.10); border-radius: 999px; position:relative; overflow:hidden; }
.flow-line span { position:absolute; inset:0; width:45%; border-radius:999px; background: linear-gradient(90deg, transparent, var(--green)); animation: flow 1.4s linear infinite; }
.flow-line.to-grid.importing span { background: linear-gradient(90deg, transparent, var(--orange)); }
@keyframes flow { from { transform: translateX(-120%); } to { transform: translateX(240%); } }
.flow-summary { display:grid; grid-template-columns: repeat(3, 1fr); gap:.75rem; }
.flow-summary span { display:block; color: var(--muted); font-size: .76rem; text-transform:uppercase; font-weight:900; letter-spacing:.1em; }
.flow-summary strong { display:block; font-size: 1.25rem; letter-spacing:-.04em; }

.panel-grid { display:grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: .85rem; }
.panel-card {
  border:1px solid var(--border);
  border-radius: 20px;
  padding: .85rem;
  background: rgba(255,255,255,.052);
  position:relative;
  overflow:hidden;
}
.panel-card:before { content:""; display:block; height:8px; border-radius:999px; background: var(--green); margin-bottom:.75rem; box-shadow:0 0 24px rgba(33,208,122,.36); }
.panel-card.watch:before { background: var(--solar); box-shadow:0 0 24px rgba(247,201,72,.36); }
.panel-card.low:before { background: var(--red); box-shadow:0 0 24px rgba(240,82,82,.36); }
.panel-id { font-size:.95rem; font-weight:900; letter-spacing:-.02em; }
.panel-meta { color: var(--muted); font-size:.8rem; margin-top:.18rem; }

.integration-list { display:grid; gap:.75rem; }
.integration-card { display:flex; align-items:flex-start; gap:.85rem; padding:.9rem; border:1px solid var(--border); border-radius:20px; background: rgba(255,255,255,.052); }
.integration-card i { width:38px; height:38px; border-radius:14px; display:grid; place-items:center; flex:0 0 auto; color: var(--cyan); background: rgba(51,199,247,.12); }
.integration-card strong { display:block; font-weight:900; }
.integration-card span { display:block; color:var(--muted); font-size:.84rem; margin-top:.15rem; }
.alert-danger { border-radius: 18px; border-color: rgba(240,82,82,.35); background: rgba(240,82,82,.12); color:#fecaca; }

@media (max-width: 1320px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: relative; height:auto; flex-direction: row; align-items:center; padding: .85rem; }
  .nav-stack { display:none; }
  .sidebar-card { margin-left:auto; min-width: 260px; }
  .kpi-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 820px) {
  .main-content { padding: .85rem; }
  .sidebar { flex-wrap: wrap; }
  .sidebar-card { width:100%; margin-left:0; }
  .hero-content { flex-direction: column; align-items: stretch; }
  .hero-output-card { min-width: 0; width:100%; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .energy-flow { grid-template-columns: 1fr; gap:.7rem; }
  .flow-line { width:3px; height:42px; justify-self:center; }
  .flow-line span { width:100%; height:45%; animation: flowDown 1.4s linear infinite; }
  @keyframes flowDown { from { transform: translateY(-120%); } to { transform: translateY(240%); } }
}
@media (max-width: 520px) {
  .kpi-grid { grid-template-columns: 1fr; }
  .hero-output-card { flex-direction: column; text-align:center; }
  .output-ring { width: 130px; height: 130px; }
  .flow-summary { grid-template-columns: 1fr; }
}