/* E-Cat Transit — first-draft stylesheet */
:root{
  /* Palette sampled from logo-original.jpg: navy #092162, mid blue #2652a3, blue #579fe4, consultancy blue #75abd7, light sky #84cff8 */
  --navy-950:#061641; --navy-900:#092162; --navy-800:#0f2d78; --navy-700:#1a3f8f;
  --ink:#0b1d47; --slate:#45577a; --muted:#6a7b98; --line:#dde6f2; --bg:#f3f7fc; --white:#fff;
  --teal:#579fe4; --teal-600:#2652a3; --teal-700:#1f4a9a; --sky:#84cff8; --sky-2:#75abd7;
  --radius:14px; --shadow:0 10px 30px -12px rgba(9,33,98,.25);
  --max:1180px;
  --font:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--white);line-height:1.6;font-size:17px;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:var(--teal-700)}
a:hover{color:var(--teal-600)}
h1,h2,h3,h4{line-height:1.15;margin:0 0 .5em;letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,4.6vw,3.6rem);font-weight:800}
h2{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:800}
h3{font-size:1.2rem;font-weight:700}
p{margin:0 0 1em}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-999px;top:0;background:var(--navy-900);color:#fff;padding:8px 14px;z-index:100}
.skip:focus{left:12px;top:12px}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--teal-700);margin-bottom:14px}
.dark .eyebrow,.hero .eyebrow,.page-hero .eyebrow{color:var(--sky)}
.lead{font-size:1.15rem;color:var(--slate);max-width:62ch}
.ph{background:rgba(87,159,228,.12);border:1px dashed var(--teal-600);border-radius:6px;padding:0 .35em;font-weight:600;color:inherit;-webkit-box-decoration-break:clone;box-decoration-break:clone}
.dark .ph,.hero .ph,.page-hero .ph,.site-footer .ph{border-color:var(--teal);color:var(--sky)}
.review{border-bottom:2px dotted #f59e0b}
.review-note{font-size:.82rem;color:#b45309;background:#fffbeb;border:1px solid #fde68a;border-radius:8px;padding:6px 10px;display:inline-block}

/* Header — white so the full-colour logo (navy wordmark) reads as designed */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--line);box-shadow:0 2px 14px -8px rgba(9,33,98,.25)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:80px}
.brand img{height:58px;width:auto}
.site-nav ul{list-style:none;margin:0;padding:0;display:flex;gap:6px;align-items:center}
.site-nav a{color:var(--navy-900);text-decoration:none;font-weight:600;font-size:.95rem;padding:8px 14px;border-radius:8px}
.site-nav a:hover,.site-nav a[aria-current="page"]{color:var(--teal-600);background:rgba(87,159,228,.1)}
.site-nav a.btn{color:#fff;background:linear-gradient(135deg,var(--teal),var(--teal-600));margin-left:8px}
.site-nav a.btn:hover{color:#fff;background:linear-gradient(135deg,#6aaeea,var(--teal-700))}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;width:44px;height:44px;cursor:pointer;padding:0}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--navy-900);margin:4px auto}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;text-decoration:none;border-radius:10px;padding:14px 22px;font-size:1rem;transition:.2s;border:2px solid transparent;cursor:pointer;font-family:inherit}
.btn-primary{background:linear-gradient(135deg,var(--teal),var(--teal-600));color:#fff;box-shadow:0 8px 20px -10px rgba(38,82,163,.8)}
.btn-primary:hover{background:linear-gradient(135deg,#6aaeea,var(--teal-700));color:#fff}
.btn-ghost{border-color:rgba(132,207,248,.45);color:#fff}
.btn-ghost:hover{border-color:var(--sky);color:var(--sky)}
.btn-dark{background:var(--navy-900);color:#fff}
.btn-dark:hover{background:var(--navy-700);color:#fff}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

/* Hero */
.hero{position:relative;overflow:hidden;color:#fff;background:radial-gradient(1200px 600px at 85% -10%,rgba(87,159,228,.32),transparent 60%),linear-gradient(160deg,var(--navy-950),var(--navy-800));padding:110px 0 calc(var(--cat-h) + 10px)}
.hero .lead{color:#b8c7de}
.hero h1 span{background:linear-gradient(90deg,var(--sky),var(--teal));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;position:relative;z-index:2}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:30px;padding:0;list-style:none}
.hero-tags li{font-size:.8rem;font-weight:600;letter-spacing:.04em;color:var(--sky);border:1px solid rgba(132,207,248,.3);border-radius:999px;padding:5px 12px}
/* Hero OCS drawing (simple catenary, side elevation) + animated pantograph */
:root{--cat-h:clamp(220px,15.3vw,330px)}
.catenary{position:absolute;left:0;right:0;bottom:0;width:100%;height:var(--cat-h);z-index:1;pointer-events:none}
.catenary path,.catenary rect{vector-effect:non-scaling-stroke}
.cat-rail{stroke:#84cff8;stroke-opacity:.18;stroke-width:2;fill:none}
.cat-mast{stroke:#84cff8;stroke-opacity:.42;stroke-width:4;fill:none}
.cat-arm{stroke:#84cff8;stroke-opacity:.55;stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
.cat-ins{fill:#0f2d78;stroke:#84cff8;stroke-opacity:.7;stroke-width:1.2}
.cat-messenger{stroke:#84cff8;stroke-opacity:.7;stroke-width:1.8;fill:none}
.cat-dropper{stroke:#84cff8;stroke-opacity:.45;stroke-width:1;fill:none}
.cat-cw-glow{stroke:#84cff8;stroke-opacity:.25;stroke-width:6;fill:none}
.cat-cw{stroke:#e8f6ff;stroke-width:2.4;fill:none}
.train-roof{fill:#13337e;stroke:#84cff8;stroke-opacity:.4;stroke-width:1.2}
.train-line{stroke:#84cff8;stroke-opacity:.3;stroke-width:1;fill:none}
.panto-base{fill:#0f2d78;stroke:#84cff8;stroke-opacity:.8;stroke-width:1.2}
.panto-ins{stroke:#84cff8;stroke-width:2;fill:none}
.panto-arm{stroke:#cfe9fb;stroke-width:2.6;fill:none;stroke-linejoin:round;stroke-linecap:round}
.panto-damper{stroke:#84cff8;stroke-opacity:.7;stroke-width:1.4;fill:none}
.panto-knee{fill:#cfe9fb}
.panto-link{stroke:#cfe9fb;stroke-width:1.6;fill:none;stroke-linecap:round}
.panto-head{stroke:#ffffff;stroke-width:3;fill:none;stroke-linecap:round}
.panto{animation:panto-run 16s linear infinite}
.spark{animation:spark-flicker .9s steps(6) infinite}
@keyframes panto-run{from{transform:translateX(-220px)}to{transform:translateX(1660px)}}
@keyframes spark-flicker{0%{opacity:.95}20%{opacity:.5}40%{opacity:1}60%{opacity:.7}80%{opacity:1}100%{opacity:.6}}
@media (max-width:640px){
  /* only the middle ~390 units of the drawing are visible on phones (xMidYMax slice) */
  .panto{animation-name:panto-run-sm;animation-duration:8s}
  @keyframes panto-run-sm{from{transform:translateX(360px)}to{transform:translateX(1100px)}}
}
@media (prefers-reduced-motion:reduce){
  .panto{animation:none;transform:translateX(660px)}
  .spark{animation:none}
}
.hero-card{background:rgba(255,255,255,.04);border:1px solid rgba(132,207,248,.18);border-radius:18px;padding:28px;box-shadow:0 30px 60px -30px rgba(0,0,0,.6)}
.hero-card h3{color:#fff;font-size:1rem;letter-spacing:.06em;text-transform:uppercase;margin-bottom:18px}
.stage-list{list-style:none;margin:0;padding:0;counter-reset:s}
.stage-list li{counter-increment:s;display:flex;gap:14px;align-items:flex-start;padding:12px 0;border-top:1px solid rgba(132,207,248,.12);color:#c9d6ea;font-size:.95rem}
.stage-list li:first-child{border-top:0}
.stage-list li::before{content:counter(s,decimal-leading-zero);font-weight:800;color:var(--sky);font-size:.85rem;min-width:24px;padding-top:2px}
.stage-list strong{color:#fff;display:block}

/* Sections */
section{padding:96px 0}
.section-head{max-width:760px;margin-bottom:48px}
.alt{background:var(--bg)}
.dark{background:linear-gradient(160deg,var(--navy-900),var(--navy-800));color:#fff}
.dark .lead,.dark p{color:#b8c7de}
.grid{display:grid;gap:24px}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:.2s;position:relative}
.card:hover{box-shadow:var(--shadow);transform:translateY(-2px);border-color:#c7d6e8}
.card p{color:var(--slate);font-size:.98rem}
.card .icon{width:52px;height:52px;border-radius:12px;background:linear-gradient(140deg,var(--navy-900),var(--navy-700));display:grid;place-items:center;margin-bottom:20px}
.card .icon svg{width:28px;height:28px}
.card .more{font-weight:700;text-decoration:none;font-size:.95rem}
.value{display:flex;gap:16px}
.value .dot{flex:0 0 40px;height:40px;border-radius:10px;background:rgba(132,207,248,.14);display:grid;place-items:center;color:var(--sky);font-weight:800}
.dark .value h3{color:#fff}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.checks{list-style:none;padding:0;margin:0}
.checks li{position:relative;padding:8px 0 8px 32px;color:var(--slate)}
.checks li::before{content:"";position:absolute;left:0;top:14px;width:18px;height:18px;border-radius:50%;background:var(--teal-600) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10.5l3 3 7-7' fill='none' stroke='%23ffffff' stroke-width='2.4'/%3E%3C/svg%3E") center/12px no-repeat}
.dark .checks li{color:#c9d6ea}

/* Image placeholders */
.img-ph{border-radius:var(--radius);min-height:320px;background:
  repeating-linear-gradient(135deg,rgba(132,207,248,.06) 0 12px,transparent 12px 24px),
  linear-gradient(160deg,var(--navy-900),var(--navy-700));
  display:flex;align-items:flex-end;padding:20px;color:var(--sky);font-size:.85rem;font-weight:600;position:relative;overflow:hidden}
.img-ph svg{position:absolute;inset:0;width:100%;height:100%}
.img-ph span{position:relative;background:rgba(5,14,31,.7);border:1px dashed var(--teal);padding:6px 10px;border-radius:8px}

/* CTA */
.cta{background:linear-gradient(120deg,var(--teal-700),var(--teal-600) 50%,#579fe4);color:#fff;border-radius:22px;padding:56px;display:flex;justify-content:space-between;align-items:center;gap:32px;position:relative;overflow:hidden}
.cta h2{margin-bottom:.3em}
.cta p{color:#e0f7fb;margin:0}
.cta .btn-dark{flex-shrink:0}
.cta-section{padding:0 0 96px}

/* Page hero */
.page-hero{color:#fff;background:radial-gradient(900px 420px at 90% -20%,rgba(87,159,228,.2),transparent 60%),linear-gradient(160deg,var(--navy-950),var(--navy-800));padding:84px 0 110px;position:relative;overflow:hidden}
.page-hero .lead{color:#b8c7de}

.page-hero{padding-bottom:calc(var(--cat-h) + 10px)}
.page-hero .container{position:relative;z-index:2}

/* Services detail */
.service{display:grid;grid-template-columns:320px 1fr;gap:48px;padding:56px 0;border-top:1px solid var(--line)}
.service:first-child{border-top:0;padding-top:0}
.service-num{font-size:.85rem;font-weight:800;color:var(--teal-700);letter-spacing:.14em}
.service h2{font-size:1.8rem}
.service .cols{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.service h4{font-size:.85rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}

/* Projects */
.project{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#fff;display:flex;flex-direction:column}
.project .img-ph{border-radius:0;min-height:190px}
.project .body{padding:24px}
.tag{display:inline-block;font-size:.75rem;font-weight:700;color:var(--teal-700);background:rgba(87,159,228,.12);border-radius:999px;padding:3px 10px;margin:0 6px 10px 0}
.meta{font-size:.88rem;color:var(--muted);margin:0}

/* Team */
.person{display:grid;grid-template-columns:180px 1fr;gap:28px;align-items:start}
.avatar{width:180px;height:180px;border-radius:18px;background:linear-gradient(160deg,var(--navy-900),var(--navy-700));display:grid;place-items:center;color:var(--sky);font-size:2.6rem;font-weight:800;position:relative;overflow:hidden}
.avatar small{position:absolute;bottom:8px;left:0;right:0;text-align:center;font-size:.66rem;color:var(--sky);font-weight:600;letter-spacing:.06em}
.role{color:var(--teal-700);font-weight:700;margin-bottom:12px}

/* Contact */
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px}
.contact-list{list-style:none;padding:0;margin:0}
.contact-list li{display:flex;gap:16px;padding:18px 0;border-top:1px solid var(--line)}
.contact-list li:first-child{border-top:0}
.contact-list .k{font-size:.78rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);min-width:90px;padding-top:3px}
form .row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
label{display:block;font-weight:600;font-size:.9rem;margin-bottom:6px}
input,select,textarea{width:100%;font:inherit;font-size:1rem;padding:12px 14px;border:1px solid #cbd6e4;border-radius:10px;background:#fff;color:var(--ink);margin-bottom:18px}
input:focus,select:focus,textarea:focus{outline:3px solid rgba(87,159,228,.35);border-color:var(--teal-600)}
textarea{min-height:150px;resize:vertical}
.form-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:36px;box-shadow:var(--shadow)}
#form-status{margin-top:14px;font-weight:600;color:var(--teal-700)}
.small{font-size:.85rem;color:var(--muted)}

/* Footer */
.site-footer{background:var(--navy-950);color:#9fb3d1;padding:64px 0 28px;font-size:.95rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.footer-logo{height:76px;width:auto;margin-bottom:18px}
.site-footer h4{color:#fff;font-size:.85rem;letter-spacing:.12em;text-transform:uppercase}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{padding:4px 0}
.site-footer a{color:#c9d6ea;text-decoration:none}
.site-footer a:hover{color:var(--sky)}
.footer-bottom{border-top:1px solid rgba(132,207,248,.12);margin-top:44px;padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.85rem}

/* Responsive */
@media (max-width:1024px){
  .g-4{grid-template-columns:repeat(2,1fr)}
  .g-3{grid-template-columns:repeat(2,1fr)}
  .service{grid-template-columns:1fr;gap:16px}
}
@media (max-width:860px){
  .nav-toggle{display:block}
  .site-nav{position:absolute;top:80px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 16px 30px -18px rgba(9,33,98,.4);display:none;padding:12px 24px 20px}
  .site-nav.open{display:block}
  .site-nav ul{flex-direction:column;align-items:stretch;gap:2px}
  .site-nav a{display:block;padding:12px}
  .site-nav a.btn{margin:8px 0 0;justify-content:center}
  .hero-grid,.split,.contact-grid{grid-template-columns:1fr}
  .hero{padding:64px 0 230px}
  .split{gap:20px}
  .page-hero{padding:56px 0 220px}
  .footer-grid{grid-template-columns:1fr}
  .cta{flex-direction:column;align-items:flex-start;padding:36px 28px}
}
@media (max-width:640px){
  body{font-size:16px}
  section{padding:64px 0}
  .g-2,.g-3,.g-4,.service .cols,form .row{grid-template-columns:1fr}
  .person{grid-template-columns:1fr}
  .form-card{padding:24px}
  .container{padding:0 20px}
  .brand img{height:42px}
  .nav-wrap{height:68px}
  .site-nav{top:68px}
  .cta-section{padding-bottom:64px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* Credentials panel (home) */
.stats{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:rgba(132,207,248,.18);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.stat{background:linear-gradient(160deg,var(--navy-900),var(--navy-800));padding:30px 26px;color:#c3d3ec}
.stat strong{display:block;font-size:2.3rem;line-height:1.05;font-weight:800;color:#fff;margin-bottom:10px;letter-spacing:-.02em}
.stat:nth-child(odd) strong{color:var(--sky)}
.stat span{font-size:.92rem;line-height:1.45;display:block}
/* Credentials list (about) */
.cred-list{list-style:none;padding:0;margin:0 0 16px;display:flex;flex-wrap:wrap;gap:8px}
.cred-list li{font-size:.85rem;font-weight:600;color:var(--navy-900);background:rgba(87,159,228,.1);border:1px solid rgba(87,159,228,.3);border-radius:999px;padding:5px 12px}
/* Experience cards */
.pcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 28px 22px;display:flex;flex-direction:column;border-top:4px solid var(--teal);transition:.2s}
.pcard:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.pcard-top{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.loc{display:inline-flex;align-items:center;gap:6px;font-size:.85rem;font-weight:600;color:var(--teal-700)}
.via{font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:3px 10px}
.via-ecat{color:var(--navy-900);background:rgba(132,207,248,.22);border-color:rgba(87,159,228,.35)}
.pcard h3{font-size:1.25rem;margin-bottom:4px}
.prole{font-weight:700;color:var(--teal-600);margin-bottom:12px;font-size:.98rem}
.pbullets{margin:0 0 16px;padding-left:18px;color:var(--slate);font-size:.95rem}
.pbullets li{margin-bottom:4px}
.ptags{margin-top:auto}
.pmeta{display:flex;gap:28px;margin:12px 0 0;padding-top:14px;border-top:1px solid var(--line);flex-wrap:wrap}
.pmeta dt{font-size:.7rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.pmeta dd{margin:2px 0 0;font-weight:700;color:var(--navy-900);font-size:.95rem}
@media (max-width:640px){.stats{grid-template-columns:1fr 1fr}.stat{padding:22px 18px}.stat strong{font-size:1.8rem}.pcard{padding:22px 20px 18px}}