/* Plug-In Solar States — dark neutral theme (2026)
   Color tokens follow a validated dark-surface palette:
   status good #0ca30c (5.19:1) / warning #fab219 (9.49:1) on #1a1a19;
   data marks use blue #3987e5; text always wears ink tokens. */
:root {
  --page: #0d0d0d;
  --surface: #1a1a19;
  --surface-2: #222221;
  --ink: #ffffff;
  --ink-2: #c3c2b7;
  --muted: #898781;
  --hairline: #2c2c2a;
  --border: rgba(255, 255, 255, 0.10);
  --accent: #fab219;          /* solar amber — brand + CTAs */
  --accent-ink: #1a1200;      /* text on amber */
  --good: #0ca30c;
  --good-bg: rgba(12, 163, 12, 0.14);
  --warn: #fab219;
  --warn-bg: rgba(250, 178, 25, 0.12);
  --none-bg: #232322;
  --data: #3987e5;            /* sequential blue for meters/bars */
  --link: #86b6ef;
  --radius: 14px;
  --maxw: 1120px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--page); color: var(--ink);
  font: 17px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.narrow { max-width: 780px; }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: clamp(1.8rem, 4.4vw, 2.7rem); line-height: 1.15; letter-spacing: -0.02em; margin: 0.4em 0 0.5em; }
h2 { font-size: 1.4rem; letter-spacing: -0.01em; margin: 1.7em 0 0.55em; }
.lede { font-size: 1.12rem; color: var(--ink-2); max-width: 46em; }
::selection { background: rgba(250, 178, 25, 0.35); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(13, 13, 13, 0.78);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hairline);
}
.nav-row { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 9px; font-weight: 800; font-size: 1.16rem; color: var(--ink); letter-spacing: -0.02em; }
.brand:hover { text-decoration: none; }
.brand .logo { flex: none; transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1); }
.brand:hover .logo { transform: rotate(45deg); }
.nav a { color: var(--ink-2); margin-left: 22px; font-weight: 600; font-size: 0.95rem; transition: color 0.15s; }
.nav a:hover { color: var(--ink); text-decoration: none; }

/* ---------- Hero ---------- */
.hero {
  position: relative; padding: 66px 0 44px; overflow: hidden;
  background:
    radial-gradient(560px 300px at 14% -40px, rgba(57, 135, 229, 0.10), transparent 62%),
    var(--page);
  border-bottom: 1px solid var(--hairline);
}
.hero .wrap { position: relative; z-index: 2; }
.hero h1 { max-width: 15em; }
/* Sun glow: soft radiating amber orb, slow breathing pulse */
.hero-glow {
  position: absolute; top: -180px; right: -120px; width: 560px; height: 560px; z-index: 1;
  pointer-events: none;
  background: radial-gradient(circle, rgba(250, 178, 25, 0.22) 0%, rgba(250, 178, 25, 0.08) 34%, transparent 62%);
  animation: breathe 7s ease-in-out infinite;
}
@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: 0.9; }
  50% { transform: scale(1.12); opacity: 1; }
}
@media (max-width: 640px) { .hero-glow { width: 380px; height: 380px; top: -140px; right: -100px; } }

/* Kicker label + gradient headline */
.kicker {
  display: inline-flex; align-items: center; gap: 8px; margin: 0 0 14px;
  padding: 6px 13px; border-radius: 99px; font-size: 0.82rem; font-weight: 600; letter-spacing: 0.01em;
  color: var(--ink-2); background: var(--surface); border: 1px solid var(--border);
}
.kicker::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--good); box-shadow: 0 0 0 3px rgba(12, 163, 12, 0.22); }
.grad-text {
  background: linear-gradient(100deg, #fcd34d 0%, var(--accent) 55%, #f08a1d 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.section-kicker { color: var(--accent); font-weight: 700; font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 2px; }

/* Stat tiles */
.stats-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin: 30px 0 8px; max-width: 720px; }
@media (max-width: 640px) { .stats-row { grid-template-columns: 1fr; } }
.stat {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 20px; transition: transform 0.18s, border-color 0.18s;
}
.stat:hover { transform: translateY(-3px); border-color: rgba(250, 178, 25, 0.35); }
.stat::before { content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 2px; background: linear-gradient(90deg, var(--accent), transparent); }
.stat-val { display: block; font-size: 2.05rem; font-weight: 800; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.stat-label { color: var(--muted); font-size: 0.92rem; }

/* ---------- Cards / checker ---------- */
.card {
  position: relative;
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow);
}
.checker.card { border-top: 2px solid rgba(250, 178, 25, 0.5); }
.checker { max-width: 520px; margin-top: 26px; }
select, input[type="number"], input[type="search"] {
  width: 100%; margin-top: 8px; padding: 12px 14px; font-size: 1rem;
  border: 1.5px solid var(--hairline); border-radius: 10px;
  background: var(--surface-2); color: var(--ink); transition: border-color 0.15s;
}
select:hover, input:hover { border-color: var(--muted); }
.checker-result { margin-top: 16px; padding: 18px; border-radius: 10px; background: var(--surface-2); border: 1px solid var(--border); }
.checker-result.legal { background: var(--good-bg); border-color: rgba(12, 163, 12, 0.3); }
.checker-result.advancing { background: var(--warn-bg); border-color: rgba(250, 178, 25, 0.3); }
.checker-result h3 { margin: 0 0 6px; }

/* ---------- Status ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; border-radius: 99px; font-size: 0.83rem; font-weight: 700;
}
.badge.legal { background: var(--good-bg); color: #4fd24f; }
.badge.advancing { background: var(--warn-bg); color: var(--warn); }
.badge.none { background: var(--none-bg); color: var(--muted); }
.dot { display: inline-block; width: 11px; height: 11px; border-radius: 50%; vertical-align: middle; }
.dot.legal { background: var(--good); }
.dot.advancing { background: var(--warn); }
.dot.none { background: #55544f; }
.legend { color: var(--muted); font-size: 0.95rem; }

/* ---------- State grid ---------- */
.state-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(66px, 1fr)); gap: 9px; margin: 20px 0 34px; }
.state-chip {
  display: block; text-align: center; padding: 12px 0; border-radius: 10px;
  font-weight: 800; letter-spacing: 0.02em;
  color: var(--muted); background: var(--none-bg); border: 1px solid transparent;
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
}
.state-chip:hover {
  text-decoration: none; transform: translateY(-3px);
  border-color: var(--border); box-shadow: 0 8px 18px rgba(0, 0, 0, 0.4);
}
.state-chip.legal { background: var(--good-bg); color: #4fd24f; }
.state-chip.advancing { background: var(--warn-bg); color: var(--warn); }

/* ---------- Two column / updates ---------- */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; margin: 34px auto; }
@media (max-width: 780px) { .two-col { grid-template-columns: 1fr; } }
.updates { list-style: none; padding: 0; }
.updates li { padding: 12px 0; border-bottom: 1px solid var(--hairline); color: var(--ink-2); }
.upd-date { font-weight: 700; color: var(--accent); margin-right: 8px; white-space: nowrap; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; background: linear-gradient(180deg, #fdc23f, var(--accent)); color: var(--accent-ink);
  font-weight: 700; padding: 13px 24px; border-radius: 10px; border: none;
  font-size: 1rem; cursor: pointer; transition: transform 0.15s, box-shadow 0.15s, filter 0.15s;
}
.btn:hover { filter: brightness(1.05); transform: translateY(-2px); box-shadow: 0 8px 22px rgba(250, 178, 25, 0.28); text-decoration: none; }
.btn.secondary { background: var(--surface-2); color: var(--ink); border: 1.5px solid var(--hairline); box-shadow: none; }
.btn.secondary:hover { border-color: var(--muted); box-shadow: none; }

/* ---------- Tables ---------- */
.table-scroll { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { border-collapse: collapse; width: 100%; font-size: 0.97rem; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--hairline); }
tbody tr:last-child td { border-bottom: none; }
tbody tr { transition: background 0.12s; }
tbody tr:hover { background: var(--surface-2); }
thead th { background: var(--surface); color: var(--ink-2); position: sticky; top: 62px; }
td { font-variant-numeric: tabular-nums; }
.law-table { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; display: block; }
.law-table th { width: 40%; color: var(--muted); font-weight: 600; background: var(--surface); }
.law-table tr { display: flex; } .law-table th, .law-table td { flex: 1; }
.filter-row { margin: 16px 0; max-width: 380px; }

/* ---------- State page ---------- */
.crumbs { font-size: 0.9rem; color: var(--muted); margin-top: 20px; }
.crumbs a { color: var(--muted); }
.status-line { font-size: 1.12rem; padding: 18px 20px; border-radius: var(--radius); background: var(--none-bg); border: 1px solid var(--border); }
.status-line.legal { background: var(--good-bg); border-color: rgba(12, 163, 12, 0.3); }
.status-line.advancing { background: var(--warn-bg); border-color: rgba(250, 178, 25, 0.3); }
.note { border-left: 3px solid var(--accent); padding: 10px 16px; background: var(--surface); border-radius: 0 10px 10px 0; color: var(--ink-2); }
.sources { color: var(--ink-2); font-size: 0.95rem; }
.updated { color: var(--muted); font-size: 0.9rem; }
.also { margin-top: 12px; color: var(--ink-2); }

/* ---------- FAQ ---------- */
.faq-item { border: 1px solid var(--border); border-radius: 12px; margin: 10px 0; padding: 0 18px; background: var(--surface); transition: border-color 0.15s; }
.faq-item:hover { border-color: var(--muted); }
.faq-item summary { padding: 15px 0; font-weight: 700; cursor: pointer; list-style: none; position: relative; padding-right: 28px; }
.faq-item summary::after { content: "+"; position: absolute; right: 2px; top: 50%; transform: translateY(-50%); color: var(--accent); font-size: 1.3rem; font-weight: 400; transition: transform 0.2s; }
.faq-item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-item p { margin-top: 0; color: var(--ink-2); }

/* ---------- Calculator ---------- */
.calc { max-width: 580px; }
.field { margin-bottom: 20px; }
.field label { font-weight: 700; display: block; }
input[type="range"] { width: 100%; accent-color: var(--accent); margin-top: 10px; }
output { color: var(--accent); font-variant-numeric: tabular-nums; }
.hint { font-size: 0.88rem; color: var(--muted); margin: 6px 0 0; }
.calc-result {
  margin-top: 10px; padding: 20px; border-radius: 12px;
  background: var(--surface-2); border: 1px solid var(--border); font-size: 1.02rem; color: var(--ink-2);
}
.calc-result .big { font-size: 2rem; font-weight: 800; color: var(--ink); letter-spacing: -0.02em; margin: 4px 0; }
.calc-result .big .unit { color: #4fd24f; }
.calc-warning { color: var(--warn); font-weight: 600; }

/* Payback meter (single data mark on a track) */
.meter { margin: 14px 0 4px; }
.meter-track { height: 10px; border-radius: 6px; background: var(--hairline); overflow: hidden; }
.meter-fill { height: 100%; width: 0; border-radius: 6px 4px 4px 6px; background: var(--data); transition: width 0.45s cubic-bezier(0.2, 0.8, 0.2, 1); }
.meter-scale { display: flex; justify-content: space-between; color: var(--muted); font-size: 0.82rem; margin-top: 4px; font-variant-numeric: tabular-nums; }

/* ---------- Devices ---------- */
.device { margin: 18px 0; transition: transform 0.15s, border-color 0.15s; }
.device:hover { transform: translateY(-2px); border-color: var(--muted); }
.device h2 { margin-top: 0; }

/* ---------- Ads ---------- */
.ad-slot { max-width: var(--maxw); margin: 28px auto; padding: 0 22px; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--hairline); margin-top: 56px; padding: 30px 0 38px; background: var(--surface); color: var(--ink-2); font-size: 0.93rem; }
.disclaimer { font-size: 0.84rem; color: var(--muted); max-width: 62em; }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}