/* ============================================================
   EVN concept — scoped under [data-site="evn"]
   Direction 2026-2030: Live Wire
   Fingerprint: single wire rail nav · live wire descent ·
   utility clean authority · substation vertical chain ·
   energy flow breaks · line art grid flat · wire polyline
   pylon · current flowing
   ============================================================ */

[data-site="evn"] {
  --ev-canvas: #f6faf7;
  --ev-surface: #ffffff;
  --ev-text: #122b22;
  --ev-muted: #4f6b5c;
  --ev-green: #005e3a;
  --ev-green-mid: #007d4e;
  --ev-spark: #f08a24;
  --ev-spark-deep: #b5660f;
  --ev-mist: #e3f0e8;
  --ev-border: #d6e4db;
  --ev-container: 74rem;
  --ev-t-fast: 140ms;
  --ev-t-base: 240ms;

  font-family: system-ui, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background: var(--ev-canvas);
  color: var(--ev-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  margin: 0;
}

[data-site="evn"] *,
[data-site="evn"] *::before,
[data-site="evn"] *::after { box-sizing: border-box; }

[data-site="evn"] h1,
[data-site="evn"] h2,
[data-site="evn"] h3 {
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.015em;
  margin: 0 0 0.6em;
}

[data-site="evn"] p { margin: 0 0 1em; }
[data-site="evn"] ul, [data-site="evn"] ol { margin: 0; padding: 0; list-style: none; }
[data-site="evn"] a { color: var(--ev-green); }
[data-site="evn"] svg { max-width: 100%; }

[data-site="evn"] :focus-visible {
  outline: 3px solid var(--ev-green-mid);
  outline-offset: 3px;
  border-radius: 6px;
}

[data-site="evn"] .visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

[data-site="evn"] .skip {
  position: absolute;
  left: 1rem; top: -4rem;
  background: var(--ev-green);
  color: #fff;
  font-weight: 700;
  padding: 0.7rem 1.2rem;
  z-index: 100;
  text-decoration: none;
  transition: top var(--ev-t-fast) ease;
}
[data-site="evn"] .skip:focus { top: 1rem; }

[data-site="evn"] .container {
  width: min(100% - 2.5rem, var(--ev-container));
  margin-inline: auto;
}

[data-site="evn"] .mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

/* ---------- concept strip ---------- */
[data-site="evn"] .concept-strip {
  background: var(--ev-green);
  color: #cfe8db;
  font-size: 0.8rem;
  padding: 0.55rem 1rem;
  text-align: center;
}
[data-site="evn"] .concept-tag {
  display: inline-block;
  background: var(--ev-spark);
  color: #2e1802;
  font-weight: 800;
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  padding: 0.12rem 0.6rem;
  margin-right: 0.5rem;
  vertical-align: 1px;
}

/* ---------- header ---------- */
[data-site="evn"] .site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(246, 250, 247, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--ev-border);
}
[data-site="evn"] .header-inner {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  padding: 0.65rem 0;
}
[data-site="evn"] .brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--ev-green);
}
[data-site="evn"] .brand-glyph {
  display: grid;
  place-items: center;
  width: 42px; height: 42px;
  background: var(--ev-green);
  border-radius: 12px;
  color: #fff;
}
[data-site="evn"] .brand-text { display: flex; flex-direction: column; line-height: 1.15; }
[data-site="evn"] .brand-name { font-size: 1.3rem; font-weight: 900; letter-spacing: 0.06em; color: var(--ev-green); }
[data-site="evn"] .brand-sub {
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: #8f5410;
  text-transform: uppercase;
}
[data-site="evn"] .main-nav { margin-left: auto; }
[data-site="evn"] .main-nav ul { display: flex; gap: 0.15rem; flex-wrap: wrap; }
[data-site="evn"] .main-nav a {
  display: block;
  text-decoration: none;
  color: var(--ev-text);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.55rem 0.95rem;
  border-radius: 10px;
  transition: background var(--ev-t-fast) ease, color var(--ev-t-fast) ease;
}
[data-site="evn"] .main-nav a:hover { background: var(--ev-green); color: #fff; }
[data-site="evn"] .header-cta {
  text-decoration: none;
  font-weight: 800;
  font-size: 0.85rem;
  color: #fff;
  background: var(--ev-green-mid);
  padding: 0.6rem 1.05rem;
  border-radius: 999px;
  white-space: nowrap;
  transition: background var(--ev-t-fast) ease;
}
[data-site="evn"] .header-cta:hover { background: var(--ev-green); }

[data-site="evn"] .nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 0.5rem;
  cursor: pointer;
  margin-left: auto;
}
[data-site="evn"] .nav-toggle span {
  width: 24px; height: 3px;
  background: var(--ev-green);
}

/* ---------- hero + live wire ---------- */
[data-site="evn"] .hero {
  position: relative;
  padding: 4.25rem 0 2rem;
}
[data-site="evn"] .wire-canvas {
  position: absolute;
  inset: 0;
  z-index: 3;
  opacity: .55;
  pointer-events: none;
}
[data-site="evn"] .wire-canvas svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
[data-site="evn"] .live-wire {
  stroke-dasharray: 26 18;
  animation: ev-flow 1.6s linear infinite;
}
[data-site="evn"] .wire-glow {
  stroke-dasharray: 3 44;
  stroke-width: 5;
  animation: ev-pulse-run 2.8s linear infinite;
}
@keyframes ev-flow {
  to { stroke-dashoffset: -88; }
}
@keyframes ev-pulse-run {
  to { stroke-dashoffset: -188; }
}
[data-site="evn"] .hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(1.6rem, 4vw, 3.4rem);
  align-items: center;
  position: relative;
  z-index: 2;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(2px);
  border-radius: 18px;
  padding: 2.25rem;
  max-width: 74rem;
}
[data-site="evn"] .eyebrow {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  color: var(--ev-green-mid);
  font-weight: 800;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 1rem;
}
[data-site="evn"] .eyebrow-dark { color: #4b6b58; }
[data-site="evn"] .chip {
  background: var(--ev-green);
  color: #fff;
  padding: 0.18rem 0.7rem;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
}
[data-site="evn"] .hero h1 {
  font-size: clamp(2.3rem, 5vw, 3.9rem);
  margin-bottom: 0.35em;
}
[data-site="evn"] .hero h1 em { font-style: normal; color: var(--ev-green-mid); }
[data-site="evn"] .lede { color: var(--ev-muted); max-width: 40rem; }
[data-site="evn"] .hero-actions { display: flex; gap: 0.8rem; flex-wrap: wrap; margin-top: 1.5rem; }

[data-site="evn"] .btn {
  display: inline-block;
  text-decoration: none;
  font-weight: 800;
  border-radius: 12px;
  padding: 0.85rem 1.6rem;
  border: 2px solid transparent;
  transition: transform var(--ev-t-fast) ease, background var(--ev-t-fast) ease, border-color var(--ev-t-fast) ease;
}
[data-site="evn"] .btn-green { background: var(--ev-green-mid); color: #fff; }
[data-site="evn"] .btn-green:hover { background: var(--ev-green); transform: translateY(-2px); }
[data-site="evn"] .btn-outline { color: var(--ev-green); border-color: var(--ev-green); }
[data-site="evn"] .btn-outline:hover { border-color: var(--ev-spark-deep); color: var(--ev-spark-deep); }
[data-site="evn"] .btn-lg { padding: 1rem 1.9rem; font-size: 1rem; }

/* ---------- sections ---------- */
[data-site="evn"] .section { padding: 4rem 0; }
[data-site="evn"] .section-head { max-width: 44rem; margin-bottom: 2.25rem; }
[data-site="evn"] .section-head h2 { font-size: clamp(1.85rem, 3.5vw, 2.6rem); }
[data-site="evn"] .section-note { color: var(--ev-muted); }
[data-site="evn"] .stitch {
  display: inline-block;
  background-image: linear-gradient(90deg, var(--ev-spark) 55%, transparent 45%);
  background-size: 14px 3px;
  background-repeat: repeat-x;
  background-position: 0 100%;
  padding-bottom: 0.3rem;
}
[data-site="evn"] .coord {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: #8f5410;
  margin: 0 0 0.9rem;
  text-transform: uppercase;
}

/* measure dots */
[data-site="evn"] .dots { padding: 3.25rem 0 1rem; }
[data-site="evn"] .dot-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
[data-site="evn"] .dot-item {
  background: var(--ev-surface);
  border: 1px solid var(--ev-border);
  border-radius: 14px;
  padding: 1.5rem 1.35rem;
  display: grid;
  gap: 0.45rem;
  align-content: start;
  position: relative;
}
[data-site="evn"] .dot-item::before {
  content: "";
  position: absolute;
  top: -5px; left: 1.35rem;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--ev-green-mid);
  border: 2px solid #fff;
  box-shadow: 0 0 0 2px var(--ev-green-mid);
}
[data-site="evn"] .dot-spark::before { background: var(--ev-spark); box-shadow: 0 0 0 2px var(--ev-spark-deep); }
[data-site="evn"] .dot-value {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 2rem;
  font-weight: 700;
  color: var(--ev-green);
  line-height: 1.05;
}
[data-site="evn"] .dot-label { font-size: 0.86rem; color: var(--ev-muted); }

/* substation chain */
[data-site="evn"] .chain { display: grid; gap: 1.15rem; }
[data-site="evn"] .substation {
  background: var(--ev-surface);
  border: 1px solid var(--ev-border);
  border-left: 12px solid var(--ev-green-mid);
  border-radius: 10px 22px 22px 10px;
  padding: 1.7rem 1.8rem;
  max-width: 46rem;
  position: relative;
  transition: transform var(--ev-t-fast) ease;
}
[data-site="evn"] .substation:hover { transform: translateX(6px); }
[data-site="evn"] .substation-right {
  margin-left: auto;
  border-left: 1px solid var(--ev-border);
  border-right: 12px solid var(--ev-spark);
  border-radius: 22px 10px 10px 22px;
}
[data-site="evn"] .substation-right:hover { transform: translateX(-6px); }
[data-site="evn"] .stage {
  display: inline-block;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--ev-green);
  background: var(--ev-mist);
  padding: 0.25rem 0.75rem;
  border-radius: 6px;
  margin-bottom: 0.75rem;
}
[data-site="evn"] .substation h3 { font-size: 1.3rem; margin-bottom: 0.3em; }
[data-site="evn"] .substation p { margin: 0; color: var(--ev-muted); font-size: 0.94rem; }

/* history */
[data-site="evn"] .history { background: var(--ev-mist); }
[data-site="evn"] .hist-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}
[data-site="evn"] .hist-steps li {
  background: var(--ev-surface);
  border: 1px solid var(--ev-border);
  border-left: 8px solid var(--ev-green-mid);
  border-radius: 12px;
  padding: 1.4rem 1.35rem;
}
[data-site="evn"] .h-year {
  display: block;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ev-green);
  line-height: 1.1;
}
[data-site="evn"] .hist-steps p { margin: 0.4em 0 0; color: var(--ev-muted); font-size: 0.92rem; }

[data-site="evn"] .fact-card {
  background: var(--ev-surface);
  border: 1px solid var(--ev-border);
  border-left: 6px solid var(--ev-spark);
  padding: 1.5rem 1.6rem;
  display: grid;
  gap: 0.9rem;
  margin: 0;
  max-width: 46rem;
  border-radius: 12px;
}
[data-site="evn"] .fact-card div {
  display: grid;
  grid-template-columns: 8.5rem 1fr;
  gap: 0.75rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px dashed var(--ev-border);
}
[data-site="evn"] .fact-card div:last-child { border-bottom: 0; padding-bottom: 0; }
[data-site="evn"] .fact-card dt {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ev-muted);
}
[data-site="evn"] .fact-card dd { margin: 0; font-weight: 600; font-size: 0.95rem; }

/* cta */
[data-site="evn"] .cta { padding: 4rem 0; text-align: center; }
[data-site="evn"] .cta-inner h2 { font-size: clamp(1.85rem, 3.5vw, 2.5rem); }

/* footer */
[data-site="evn"] .site-footer {
  background: #0e241c;
  color: #bfd6c8;
  padding: 3.25rem 0 2rem;
}
[data-site="evn"] .footer-brand { display: flex; align-items: baseline; gap: 0.9rem; margin-bottom: 1.4rem; flex-wrap: wrap; }
[data-site="evn"] .f-name { color: #fff; font-size: 1.3rem; font-weight: 900; letter-spacing: 0.06em; }
[data-site="evn"] .f-sub { font-size: 0.8rem; color: var(--ev-spark); }
[data-site="evn"] .footer-nav ul { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; margin-bottom: 1.6rem; }
[data-site="evn"] .footer-nav a { color: #e2efe7; text-decoration: none; font-size: 0.9rem; font-weight: 600; }
[data-site="evn"] .footer-nav a:hover { color: var(--ev-spark); }
[data-site="evn"] .disclaimer {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  padding-top: 1.4rem;
  font-size: 0.82rem;
  color: #9ab8a8;
  max-width: 60rem;
}
[data-site="evn"] .colophon { font-size: 0.75rem; color: #7f9c8d; }

/* ---------- real grid photography ---------- */
[data-site="evn"] .hero-photo { margin: 0; position: relative; }
[data-site="evn"] .hero-photo img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--ev-border);
  border-bottom: 4px solid var(--ev-spark);
}
[data-site="evn"] .hero-photo figcaption {
  margin-top: 0.7rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.7rem;
  color: var(--ev-muted);
}
[data-site="evn"] .hero-photo a,
[data-site="evn"] .station-credit a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }
[data-site="evn"] .station-photo {
  display: block;
  width: 100%;
  height: clamp(140px, 15vw, 180px);
  object-fit: cover;
  border: 1px solid var(--ev-border);
  margin: 0.7rem 0 0.9rem;
}
[data-site="evn"] .station-credit {
  display: block;
  margin-top: 0.8rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.66rem;
  color: var(--ev-muted);
}

/* ---------- responsive ---------- */
@media (max-width: 1020px) {
  [data-site="evn"] .dot-grid { grid-template-columns: repeat(2, 1fr); }
  [data-site="evn"] .hist-steps { grid-template-columns: 1fr; }
}

@media (max-width: 1020px) {
  [data-site="evn"] .hero-inner { grid-template-columns: 1fr; }
  [data-site="evn"] .hero-photo { max-width: 34rem; }
}

@media (max-width: 760px) {
  [data-site="evn"] .nav-toggle { display: flex; }
  [data-site="evn"] .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--ev-canvas);
    border-bottom: 1px solid var(--ev-border);
    padding: 0.75rem 1.25rem 1.25rem;
  }
  [data-site="evn"] .main-nav.is-open { display: block; }
  [data-site="evn"] .main-nav ul { flex-direction: column; gap: 0.25rem; }
  [data-site="evn"] .header-cta { display: none; }
  [data-site="evn"] .hero-inner { padding: 1.5rem; }
}

@media (max-width: 520px) {
  [data-site="evn"] .dot-grid { grid-template-columns: 1fr; }
  [data-site="evn"] .section { padding: 3rem 0; }
  [data-site="evn"] .fact-card div { grid-template-columns: 1fr; }
}

/* ---------- motion ---------- */
@media (prefers-reduced-motion: reduce) {
  [data-site="evn"] * {
    animation: none !important;
    transition: none !important;
  }
}

/* ---------- polish: motion layer 2 ---------- */
[data-site="evn"] .dot-item::before {
  animation: ev-beep 2.6s ease-in-out infinite;
}
[data-site="evn"] .dot-item:nth-child(2)::before { animation-delay: 0.65s; }
[data-site="evn"] .dot-item:nth-child(3)::before { animation-delay: 1.3s; }
[data-site="evn"] .dot-item:nth-child(4)::before { animation-delay: 1.95s; }
@keyframes ev-beep {
  50% { box-shadow: 0 0 0 6px rgba(0, 125, 78, 0.18); }
}
[data-site="evn"] .substation:hover .stage {
  display: inline-block;
  animation: ev-jolt 0.5s ease;
}
@keyframes ev-jolt {
  35% { transform: translateX(4px); }
  70% { transform: translateX(-3px); }
}
[data-site="evn"] .cta .btn {
  box-shadow: 0 0 0 rgba(0, 125, 78, 0.4);
  animation: ev-hum 3.2s ease-in-out infinite;
}
@keyframes ev-hum {
  50% { box-shadow: 0 0 26px rgba(0, 125, 78, 0.35); }
}