:root {
  color-scheme: light;
  --navy: #11294a;
  --navy-deep: #0c203b;
  --navy-soft: #1c3c63;
  --orange: #e85a1a;
  --orange-dark: #c94b15;
  --ink: #17263b;
  --muted: #647184;
  --paper: #f7f8fa;
  --white: #fff;
  --line: #e3e7ed;
  --font-body: "DM Sans", sans-serif;
  --font-heading: "Manrope", sans-serif;
  --container: 1160px;
  --shadow-card: 0 18px 50px rgba(17, 41, 74, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: var(--font-body); -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { display: block; max-width: 100%; }
.container { width: min(var(--container), calc(100% - 64px)); margin-inline: auto; }
.section-pad { padding-block: 104px; }
.scroll-progress { position: fixed; z-index: 20; inset: 0 auto auto 0; width: 0; height: 3px; background: var(--orange); }
.skip-link { position: fixed; z-index: 30; top: 10px; left: 10px; padding: 12px 18px; transform: translateY(-150%); border-radius: 6px; color: var(--white); background: var(--navy); }
.skip-link:focus { transform: translateY(0); }

.site-header { position: sticky; z-index: 15; top: 0; height: 82px; background: rgba(255,255,255,.96); border-bottom: 1px solid rgba(17,41,74,.07); backdrop-filter: blur(14px); transition: box-shadow .25s ease, height .25s ease; }
.site-header.is-scrolled { height: 72px; box-shadow: 0 8px 26px rgba(17,41,74,.08); }
.header-inner, .brand, .site-nav { display: flex; align-items: center; }
.header-inner { justify-content: space-between; height: 100%; }
.brand { gap: 11px; flex-shrink: 0; }
.brand-mark { display: grid; width: 43px; height: 43px; place-items: center; color: var(--orange); }
.brand-mark svg { width: 100%; height: 100%; }
.brand-copy { display: grid; gap: 2px; }
.brand-name { color: var(--navy); font: 800 15px/1 var(--font-heading); letter-spacing: -.045em; }
.brand-tagline { color: var(--navy); font: 700 8px/1.2 var(--font-heading); letter-spacing: .11em; }
.site-nav { height: 100%; gap: 40px; }
.nav-link { position: relative; display: inline-flex; height: 100%; align-items: center; color: #48566b; font-size: 13px; font-weight: 600; transition: color .2s ease; }
.nav-link::after { position: absolute; right: 0; bottom: 21px; left: 0; height: 2px; background: var(--orange); content: ""; transform: scaleX(0); transform-origin: left; transition: transform .2s ease; }
.nav-link:hover, .nav-link.is-active { color: var(--orange-dark); }
.nav-link.is-active::after, .nav-link:hover::after { transform: scaleX(1); }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 22px; padding: 0 22px; border: 1px solid var(--orange); border-radius: 4px; color: var(--white); background: var(--orange); font-size: 13px; font-weight: 700; transition: color .2s ease, background .2s ease, transform .2s ease, box-shadow .2s ease; }
.button:hover { background: var(--orange-dark); box-shadow: 0 8px 20px rgba(232,90,26,.2); transform: translateY(-2px); }
.button span { font-size: 17px; line-height: 1; transition: transform .2s ease; }
.button:hover span { transform: translate(2px,-2px); }
.button-small { min-height: 42px; padding-inline: 18px; font-size: 12px; }
.menu-toggle { display: none; }

.hero { position: relative; display: flex; min-height: 635px; align-items: center; overflow: hidden; color: var(--white); background: var(--navy-deep); }
.hero-image, .hero-overlay { position: absolute; inset: 0; }
.hero-image { background: url("assets/images/transmission-overview.jpg") center 48% / cover no-repeat; animation: hero-zoom 16s ease-out both; }
.hero-overlay { background: linear-gradient(90deg, rgba(7,20,37,.88) 0%, rgba(9,24,44,.72) 42%, rgba(12,26,44,.27) 100%), linear-gradient(0deg, rgba(9,24,44,.36), transparent 50%); }
.hero-content { position: relative; z-index: 1; padding-block: 85px 95px; animation: hero-enter .8s .08s both; }
.eyebrow { display: flex; align-items: center; gap: 11px; margin: 0 0 18px; color: var(--orange); font-size: 10px; font-weight: 700; letter-spacing: .15em; line-height: 1.4; text-transform: uppercase; }
.eyebrow-light { color: rgba(255,255,255,.8); }
.eyebrow-line { display: inline-block; width: 27px; height: 2px; flex-shrink: 0; background: var(--orange); }
.hero h1 { max-width: 730px; margin: 0; font: 800 clamp(44px, 6vw, 72px)/1.08 var(--font-heading); letter-spacing: -.065em; }
.hero h1 span { color: #ffb078; }
.hero-description { max-width: 530px; margin: 22px 0 29px; color: rgba(255,255,255,.82); font-size: 16px; line-height: 1.75; }
.hero-actions { display: flex; align-items: center; gap: 30px; }
.text-link { display: inline-flex; align-items: center; gap: 12px; color: var(--navy); font-size: 13px; font-weight: 700; transition: color .2s ease, gap .2s ease; }
.text-link:hover { gap: 17px; color: var(--orange-dark); }
.text-link span { color: var(--orange); font-size: 18px; }
.text-link-light { color: var(--white); }
.text-link-light:hover { color: var(--white); }
.hero-note { display: flex; align-items: center; gap: 10px; margin-top: 60px; color: rgba(255,255,255,.68); font-size: 11px; letter-spacing: .025em; }
.status-dot, .project-status i { width: 7px; height: 7px; border-radius: 50%; background: #7fd0a2; box-shadow: 0 0 0 4px rgba(127,208,162,.15); }
.hero-scroll { position: absolute; z-index: 1; right: max(32px, calc((100% - var(--container))/2)); bottom: 37px; display: flex; align-items: center; gap: 12px; color: rgba(255,255,255,.7); font-size: 9px; font-weight: 700; letter-spacing: .15em; writing-mode: vertical-rl; }
.scroll-line { width: 1px; height: 42px; background: linear-gradient(var(--orange),rgba(255,255,255,.2)); }
.hero-index { position: absolute; right: max(32px, calc((100% - var(--container))/2)); bottom: 36px; color: rgba(255,255,255,.9); font: 700 12px var(--font-heading); }
.hero-index span { padding-inline: 4px; color: rgba(255,255,255,.42); }

.highlights { padding-block: 0; background: var(--paper); }
.highlight-grid { display: grid; grid-template-columns: repeat(3, 1fr); padding-block: 42px; }
.highlight-card { display: grid; grid-template-columns: 49px 1fr; gap: 18px; padding: 12px 30px; }
.highlight-card + .highlight-card { border-left: 1px solid #dfe4eb; }
.highlight-icon { display: grid; width: 42px; height: 42px; place-items: center; color: var(--navy); }
.highlight-icon svg { width: 34px; height: 34px; }
.card-kicker { margin: 0 0 8px; color: #8390a0; font-size: 9px; font-weight: 700; letter-spacing: .13em; }
.highlight-card h2 { margin: 0 0 8px; color: var(--navy); font: 750 17px/1.35 var(--font-heading); letter-spacing: -.035em; }
.highlight-card p:last-child { max-width: 260px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.65; }

.about { background: #fff; }
.about-grid { display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: clamp(50px, 8vw, 105px); }
.about-visual { position: relative; min-height: 420px; }
.about-visual::before { position: absolute; z-index: 0; top: -15px; right: -15px; width: 45%; height: 55%; border: 1px solid rgba(232,90,26,.38); content: ""; }
.about-visual img { position: relative; z-index: 1; width: 100%; height: 420px; object-fit: cover; filter: saturate(.82); }
.about-visual::after { position: absolute; z-index: 1; inset: 0; background: linear-gradient(0deg,rgba(8,27,51,.65),transparent 40%); content: ""; pointer-events: none; }
.image-caption { position: absolute; z-index: 2; bottom: 22px; left: 24px; display: flex; align-items: center; gap: 12px; color: white; font-size: 11px; }
.caption-icon { display: grid; width: 29px; height: 29px; place-items: center; border: 1px solid rgba(255,255,255,.55); border-radius: 50%; color: #ffb078; }
.image-stamp { position: absolute; z-index: 3; right: -22px; bottom: 34px; display: grid; width: 78px; height: 78px; align-content: center; justify-items: center; gap: 2px; border-radius: 50%; color: var(--white); background: var(--orange); transform: rotate(9deg); }
.image-stamp span { font-size: 6px; font-weight: 700; letter-spacing: .1em; }
.image-stamp strong { font: 800 25px/1 var(--font-heading); }
.about-copy { padding-block: 10px; }
.section-title { margin: 0; color: var(--navy); font: 800 clamp(32px, 4vw, 47px)/1.12 var(--font-heading); letter-spacing: -.055em; }
.section-title span { color: #768497; }
.lead { margin: 21px 0 13px; color: var(--navy); font-size: 15px; font-weight: 600; line-height: 1.75; }
.body-copy { max-width: 510px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.85; }
.commitment-list { display: grid; gap: 13px; margin: 24px 0 26px; padding: 0; list-style: none; }
.commitment-list li { display: flex; align-items: flex-start; gap: 11px; color: #3b485b; font-size: 12px; line-height: 1.55; }
.commitment-list li span:first-child { color: var(--orange); font-size: 15px; font-weight: 700; line-height: 1.1; }

.network { position: relative; overflow: hidden; color: white; background: var(--navy); }
.network::before, .network::after { position: absolute; width: 420px; height: 420px; border: 1px solid rgba(255,255,255,.07); border-radius: 50%; content: ""; pointer-events: none; }
.network::before { top: -235px; right: -110px; box-shadow: 0 0 0 38px rgba(255,255,255,.025),0 0 0 78px rgba(255,255,255,.02); }
.network::after { bottom: -315px; left: -180px; }
.network > .container { position: relative; z-index: 1; }
.section-heading { max-width: 670px; margin: 0 auto 43px; text-align: center; }
.section-heading .eyebrow { justify-content: center; }
.section-heading .section-title { color: white; }
.section-heading .section-title span { color: #ffb078; }
.section-heading > p:last-child { margin: 13px 0 0; color: rgba(255,255,255,.68); font-size: 13px; }
.network-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.map-card { overflow: hidden; border: 1px solid rgba(255,255,255,.16); border-radius: 5px; background: #f7f8f6; color: var(--navy); box-shadow: 0 18px 45px rgba(3,13,28,.2); transition: transform .3s ease, box-shadow .3s ease; }
.map-card:hover { box-shadow: 0 24px 50px rgba(3,13,28,.3); transform: translateY(-5px); }
.map-card-head { display: flex; align-items: center; gap: 14px; padding: 20px 22px 0; }
.map-card-head > span:first-child { color: var(--orange); font-size: 9px; font-weight: 700; letter-spacing: .1em; }
.map-card-head h3 { margin: 0; font: 750 17px var(--font-heading); letter-spacing: -.03em; }
.map-arrow { display: grid; width: 28px; height: 28px; margin-left: auto; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: var(--orange); }
.district-map { display: grid; min-height: 232px; place-items: center; padding: 2px 15px 0; }
.district-map svg { width: 100%; max-height: 220px; overflow: visible; }
.district-outline { fill: #eef0ea; stroke: #cbd1c7; stroke-width: 1.3; }
.route { fill: none; stroke-width: 2; stroke-dasharray: 4 5; opacity: .8; }
.route-orange { stroke: #e87a47; }
.route-blue { stroke: #4a84b5; }
.route-green { stroke: #69a177; }
.map-node circle { fill: var(--orange); stroke: white; stroke-width: 2; }
.map-label text { fill: #263a51; font-family: var(--font-body); font-size: 8px; font-weight: 700; letter-spacing: .035em; }
.map-card-foot { display: flex; justify-content: space-between; padding: 13px 22px; border-top: 1px solid #e8ebea; color: #798598; font-size: 10px; }
.map-card-foot a:last-child { color: var(--navy); font-weight: 700; }
.map-card-foot a:last-child:hover { color: var(--orange-dark); }
.map-card-foot b { margin-left: 4px; color: var(--orange); font-size: 14px; }
.network-cta { display: flex; justify-content: center; margin-top: 31px; }
.button-outline { border-color: rgba(255,255,255,.5); background: transparent; }
.button-outline:hover { border-color: var(--orange); background: var(--orange); }

.projects { background: var(--paper); }
.projects-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 34px; }
.projects-heading > p { max-width: 330px; margin: 0 0 4px; color: var(--muted); font-size: 13px; line-height: 1.7; }
.project-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.project-card { overflow: hidden; border: 1px solid #e6e9ed; border-radius: 5px; background: white; box-shadow: 0 10px 32px rgba(17,41,74,.04); transition: transform .3s ease, box-shadow .3s ease; }
.project-card:hover { box-shadow: var(--shadow-card); transform: translateY(-5px); }
.project-card-top { display: flex; justify-content: space-between; align-items: center; padding: 17px 20px 14px; }
.project-number { color: #a4adba; font: 700 11px var(--font-heading); }
.project-status { display: inline-flex; align-items: center; gap: 8px; color: #667486; font-size: 8px; font-weight: 700; letter-spacing: .1em; }
.project-status i { width: 6px; height: 6px; background: var(--orange); box-shadow: 0 0 0 3px rgba(232,90,26,.12); }
.project-art { position: relative; height: 200px; overflow: hidden; background: #dce2e5; }
.project-art img { width: 100%; height: 100%; object-fit: cover; object-position: center 52%; transition: transform .5s ease; }
.project-card:hover .project-art img { transform: scale(1.045); }
.project-art::before { position: absolute; z-index: 1; inset: 0; background: linear-gradient(180deg,rgba(18,42,66,.02),rgba(18,42,66,.19)); content: ""; pointer-events: none; }
.project-art-two { background: linear-gradient(180deg,#9caebd 0%,#d3d9d3 59%,#9da896 100%); }
.art-sun { position: absolute; top: 24px; right: 22%; width: 51px; height: 51px; border-radius: 50%; background: rgba(255,210,164,.75); filter: blur(1px); }
.art-ground { position: absolute; right: 0; bottom: -45px; left: 0; height: 85px; border-radius: 50% 50% 0 0; background: linear-gradient(0deg,#596e61,#819077); }
.art-tower { position: absolute; z-index: 1; bottom: 16px; left: 47%; width: 3px; height: 118px; background: #34495a; transform: skew(-9deg); }
.art-tower::before, .art-tower::after { position: absolute; left: 50%; width: 78px; height: 2px; background: #34495a; content: ""; transform: translateX(-50%); }
.art-tower::before { top: 28px; }
.art-tower::after { top: 51px; width: 106px; }
.art-tower-a { left: 48%; height: 122px; }
.art-tower-b { left: 73%; height: 88px; transform: scale(.75) skew(-9deg); transform-origin: bottom; opacity: .8; }
.project-art-two .art-tower-a { left: 38%; height: 96px; }
.project-art-two .art-tower-b { left: 70%; height: 126px; }
.project-card-copy { padding: 20px 22px 17px; }
.project-location { margin: 0 0 7px; color: var(--orange); font-size: 9px; font-weight: 700; letter-spacing: .13em; }
.project-card-copy h3 { margin: 0; color: var(--navy); font: 750 21px var(--font-heading); letter-spacing: -.04em; }
.project-card-copy > p:not(.project-location) { max-width: 410px; margin: 9px 0 17px; color: var(--muted); font-size: 12px; line-height: 1.7; }
.project-specs { display: flex; gap: 9px; }
.project-specs span { padding: 7px 10px; border: 1px solid #e8ebef; border-radius: 2px; color: #445267; font-size: 9px; font-weight: 600; }
.project-link { display: flex; justify-content: space-between; padding: 13px 22px; border-top: 1px solid #edf0f3; color: var(--navy); font-size: 11px; font-weight: 700; transition: color .2s ease; }
.project-link span { color: var(--orange); font-size: 16px; transition: transform .2s ease; }
.project-link:hover { color: var(--orange-dark); }
.project-link:hover span { transform: translate(2px,-2px); }
.project-footnote { display: flex; align-items: center; justify-content: center; gap: 9px; margin-top: 25px; color: #7d8999; }
.footnote-icon { display: grid; width: 15px; height: 15px; flex-shrink: 0; place-items: center; border: 1px solid #aeb8c5; border-radius: 50%; font: 700 9px Georgia,serif; }
.project-footnote p { margin: 0; font-size: 10px; }

.site-footer { color: rgba(255,255,255,.75); background: #0c203b; }
.footer-main { display: grid; grid-template-columns: 1.35fr 1fr auto; align-items: center; gap: 28px; min-height: 130px; }
.brand-footer .brand-name, .brand-footer .brand-tagline { color: white; }
.brand-footer .brand-mark { color: #ff8a4c; }
.footer-note { margin: 0; color: rgba(255,255,255,.58); font-size: 11px; line-height: 1.7; }
.back-to-top { display: inline-flex; align-items: center; gap: 10px; color: white; font-size: 10px; font-weight: 600; }
.back-to-top span { display: grid; width: 29px; height: 29px; place-items: center; border: 1px solid rgba(255,255,255,.3); border-radius: 50%; color: #ffb078; transition: transform .2s ease, background .2s ease; }
.back-to-top:hover span { background: rgba(255,255,255,.1); transform: translateY(-3px); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-block: 15px; border-top: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.46); font-size: 9px; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .65s ease, transform .65s cubic-bezier(.2,.7,.2,1); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.highlight-card:nth-child(2), .map-card:nth-child(2), .project-card:nth-child(2) { transition-delay: .12s; }
.highlight-card:nth-child(3) { transition-delay: .22s; }

@keyframes hero-enter { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes hero-zoom { from { transform: scale(1.055); } to { transform: scale(1); } }

@media (max-width: 900px) {
  .container { width: min(var(--container), calc(100% - 48px)); }
  .section-pad { padding-block: 82px; }
  .hero { min-height: 590px; }
  .hero-note { margin-top: 45px; }
  .highlight-card { grid-template-columns: 38px 1fr; gap: 12px; padding-inline: 18px; }
  .highlight-icon { width: 35px; height: 35px; }
  .about-grid { gap: 45px; }
  .about-visual, .about-visual img { min-height: 370px; height: 370px; }
  .footer-main { grid-template-columns: 1fr 1fr; padding-block: 28px; }
  .footer-note { justify-self: end; }
  .back-to-top { justify-self: end; }
}

@media (max-width: 650px) {
  html { scroll-padding-top: 70px; }
  .container { width: calc(100% - 40px); }
  .section-pad { padding-block: 68px; }
  .site-header, .site-header.is-scrolled { height: 70px; }
  .brand { gap: 8px; }
  .brand-mark { width: 38px; height: 38px; }
  .brand-name { font-size: 13px; }
  .brand-tagline { font-size: 7px; }
  .menu-toggle { display: grid; width: 42px; height: 42px; align-content: center; justify-items: center; gap: 6px; border: 1px solid var(--line); border-radius: 4px; background: white; cursor: pointer; }
  .menu-toggle span { display: block; width: 17px; height: 2px; background: var(--navy); transition: transform .2s ease; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .site-nav { position: absolute; top: 69px; right: 0; left: 0; display: flex; height: auto; flex-direction: column; align-items: stretch; gap: 0; padding: 0 20px; overflow: hidden; background: white; box-shadow: 0 15px 25px rgba(17,41,74,.1); max-height: 0; transition: max-height .3s ease, padding .3s ease; }
  .site-nav.is-open { max-height: 250px; padding-block: 8px 20px; }
  .nav-link { height: 48px; border-bottom: 1px solid #eef0f3; }
  .nav-link::after { right: auto; bottom: 0; width: 30px; }
  .hero { min-height: 600px; align-items: center; }
  .hero-image { background-position: 58% center; }
  .hero-overlay { background: linear-gradient(90deg,rgba(7,20,37,.83),rgba(9,24,44,.49)),linear-gradient(0deg,rgba(9,24,44,.4),transparent 60%); }
  .hero-content { padding-block: 70px 82px; }
  .hero h1 { font-size: clamp(42px, 12vw, 59px); }
  .hero-description { max-width: 420px; font-size: 14px; }
  .hero-actions { flex-wrap: wrap; gap: 18px 23px; }
  .hero-note { max-width: 240px; margin-top: 40px; font-size: 10px; }
  .hero-scroll { right: 20px; bottom: 23px; font-size: 8px; }
  .hero-index { right: 20px; bottom: 22px; font-size: 10px; }
  .highlight-grid { grid-template-columns: 1fr; padding-block: 15px; }
  .highlight-card { grid-template-columns: 42px 1fr; gap: 15px; padding: 22px 5px; }
  .highlight-card + .highlight-card { border-top: 1px solid #e1e6ec; border-left: 0; }
  .highlight-card h2 { font-size: 16px; }
  .about-grid { grid-template-columns: 1fr; gap: 43px; }
  .about-visual, .about-visual img { min-height: 290px; height: 290px; }
  .about-visual::before { top: -9px; right: -9px; }
  .image-stamp { right: -10px; bottom: 25px; width: 65px; height: 65px; }
  .image-stamp strong { font-size: 20px; }
  .image-caption { bottom: 17px; left: 14px; font-size: 9px; }
  .section-title { font-size: 36px; }
  .lead { font-size: 14px; }
  .network-grid, .project-grid { grid-template-columns: 1fr; }
  .section-heading { margin-bottom: 32px; }
  .section-heading > p:last-child { line-height: 1.65; }
  .district-map { min-height: 205px; }
  .map-card-head { padding-inline: 16px; }
  .map-card-foot { padding-inline: 16px; }
  .projects-heading { display: block; }
  .projects-heading > p { margin-top: 14px; }
  .footer-main { grid-template-columns: 1fr; gap: 18px; padding-block: 28px; }
  .footer-note, .back-to-top { justify-self: start; }
  .footer-bottom { flex-direction: column; gap: 7px; padding-block: 14px; line-height: 1.5; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}