:root {
  color-scheme: light;
  --ink: #18211f;
  --muted: #5d6b67;
  --line: #d9e2de;
  --paper: #f8faf7;
  --panel: #ffffff;
  --accent: #0e766f;
  --accent-2: #a84b2f;
  --accent-3: #294c7a;
  --ok: #147a46;
  --warn: #a75d00;
  --risk: #b3261e;
  --shadow: 0 18px 50px rgba(21, 35, 31, 0.08);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.55;
}

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 20;
  background: var(--ink);
  color: #fff;
  padding: .65rem .85rem;
}

.skip-link:focus {
  top: 1rem;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(217, 226, 222, .85);
  background: rgba(248, 250, 247, .92);
  backdrop-filter: blur(14px);
}

.nav-shell {
  width: min(1180px, calc(100vw - 32px));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand {
  font-weight: 800;
  text-decoration: none;
  letter-spacing: 0;
  white-space: nowrap;
}

.brand span {
  color: var(--accent);
}

.nav {
  display: flex;
  gap: .35rem;
  margin-left: auto;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a,
.language a,
.button {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  border: 1px solid transparent;
  border-radius: 7px;
  padding: .55rem .72rem;
  text-decoration: none;
  font-size: .94rem;
  font-weight: 650;
}

.nav a:hover,
.language a:hover {
  border-color: var(--line);
  background: #fff;
}

.language {
  display: flex;
  align-items: center;
  gap: .3rem;
}

.language a[aria-current="true"] {
  color: #fff;
  background: var(--ink);
}

.hero {
  position: relative;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(110deg, rgba(14, 118, 111, .12), rgba(168, 75, 47, .10)),
    url("/assets/energy-grid.svg") center/cover no-repeat;
}

.hero-inner {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
  min-height: 620px;
  padding: 72px 0 56px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, .75fr);
  align-items: center;
  gap: 48px;
}

.eyebrow {
  margin: 0 0 .8rem;
  color: var(--accent-2);
  font-weight: 800;
  text-transform: uppercase;
  font-size: .8rem;
  letter-spacing: 0;
}

h1,
h2,
h3 {
  line-height: 1.12;
  letter-spacing: 0;
}

h1 {
  margin: 0;
  max-width: 840px;
  font-size: clamp(2.4rem, 7vw, 5.2rem);
}

h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.7rem, 3vw, 2.45rem);
}

h3 {
  margin: 0 0 .55rem;
  font-size: 1.1rem;
}

.lead {
  max-width: 760px;
  margin: 1.25rem 0 0;
  color: #2f3f3b;
  font-size: 1.16rem;
}

.hero-actions,
.pills,
.source-list,
.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

.hero-actions {
  margin-top: 1.6rem;
}

.button {
  border-color: var(--ink);
  background: var(--ink);
  color: #fff;
}

.button.secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, .82);
  color: var(--ink);
}

.pills {
  margin-top: 1.6rem;
}

.pill {
  border: 1px solid rgba(24, 33, 31, .16);
  border-radius: 999px;
  background: rgba(255, 255, 255, .78);
  padding: .42rem .68rem;
  font-size: .9rem;
  font-weight: 700;
}

.status-panel {
  border: 1px solid rgba(24, 33, 31, .12);
  background: rgba(255, 255, 255, .84);
  box-shadow: var(--shadow);
  border-radius: 8px;
  padding: 1.1rem;
}

.status-grid {
  display: grid;
  gap: .75rem;
}

.metric {
  border-left: 4px solid var(--accent);
  background: #fff;
  border-radius: 6px;
  padding: .85rem;
}

.metric strong {
  display: block;
}

.metric span {
  color: var(--muted);
  font-size: .92rem;
}

.section {
  padding: 64px 0;
}

.section.alt {
  background: #fff;
  border-block: 1px solid var(--line);
}

.container {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
}

.grid-2,
.grid-3 {
  display: grid;
  gap: 1rem;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card,
.tool-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 1.1rem;
}

.card {
  min-height: 100%;
}

.card p,
.tool-panel p {
  color: var(--muted);
}

.timeline {
  display: grid;
  gap: .9rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 1rem;
  border-left: 4px solid var(--accent-3);
  background: #fff;
  border-radius: 6px;
  padding: 1rem;
}

.timeline-date {
  font-weight: 850;
  color: var(--accent-3);
}

.tool-panel {
  margin-top: 1.4rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .9rem;
}

label {
  display: grid;
  gap: .35rem;
  font-weight: 750;
}

select,
input,
textarea {
  width: 100%;
  min-height: 42px;
  border: 1px solid #b9c7c2;
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
  padding: .62rem .7rem;
  font: inherit;
}

textarea {
  min-height: 92px;
  resize: vertical;
}

.result {
  margin-top: 1rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem;
  background: #f9fbfb;
}

.result strong {
  font-size: 1.5rem;
}

.result[data-level="ready"] {
  border-color: rgba(20, 122, 70, .35);
}

.result[data-level="medium"] {
  border-color: rgba(167, 93, 0, .38);
}

.result[data-level="risk"] {
  border-color: rgba(179, 38, 30, .38);
}

.checklist {
  display: grid;
  gap: .9rem;
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: .65rem;
  padding: .45rem 0;
  font-weight: 600;
}

.check-item input {
  width: 20px;
  min-height: 20px;
  margin-top: .1rem;
}

.supplier-list {
  display: grid;
  gap: .75rem;
  margin-top: 1rem;
}

.supplier-row {
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: .85rem;
  background: #fff;
}

.ad-slot {
  margin-top: 1.4rem;
  border: 1px dashed #9eb1aa;
  border-radius: 8px;
  padding: 1rem;
  background: #f5f8f6;
  color: var(--muted);
}

.affiliate {
  margin-top: 1rem;
  border-left: 4px solid var(--accent-2);
  background: #fff8f4;
  padding: 1rem;
  border-radius: 6px;
}

.sources a {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: .45rem .7rem;
  text-decoration: none;
  background: #fff;
}

.footer {
  padding: 36px 0;
  border-top: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
}

.footer-grid {
  justify-content: space-between;
  align-items: center;
}

ul {
  padding-left: 1.2rem;
}

@media (max-width: 860px) {
  .nav-shell {
    align-items: flex-start;
    flex-direction: column;
    padding: .85rem 0;
  }

  .nav {
    margin-left: 0;
    justify-content: flex-start;
  }

  .hero-inner,
  .grid-2,
  .grid-3,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .hero-inner {
    min-height: auto;
    padding: 48px 0 40px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }
}