/* THE DRIVETRAIN — independent cycling tech, e-mobility and racing-markets journal */
:root{--bg:#f4f2ec;--paper:#fff;--ink:#16181b;--ink-2:#3b3f45;--muted:#767b83;--line:#e1ded5;--black:#111214;--lime:#c8f03c;--lime-d:#93b81a;--amber:#ff9f1c;--font:"Inter","Segoe UI",Arial,sans-serif;--head:"Space Grotesk","Inter",Arial,sans-serif;--wrap:1180px}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font:16px/1.7 var(--font);color:var(--ink);background:var(--bg)}
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a{color:var(--ink);text-decoration:underline;text-decoration-color:var(--lime-d);text-decoration-thickness:2px;text-underline-offset:3px}
a:hover{color:#000;text-decoration-color:var(--amber)}
h1,h2,h3{font-family:var(--head);font-weight:700;line-height:1.12;letter-spacing:-.01em;color:var(--black)}
h1{font-size:clamp(2rem,4.4vw,3.2rem);margin-bottom:16px}
h2{font-size:clamp(1.35rem,2.4vw,1.75rem);margin:34px 0 12px}
h3{font-size:1.12rem;margin:22px 0 8px}
p{margin-bottom:14px}
ul,ol{margin:0 0 16px 22px}
li{margin-bottom:6px}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;padding:6px 10px;z-index:99}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
/* header */
.top{background:var(--black);color:#fff;position:sticky;top:0;z-index:50;border-bottom:3px solid var(--lime)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-family:var(--head);font-weight:700;font-size:1.25rem;letter-spacing:.02em}
.brand:hover{color:var(--lime)}
.brand .dot{width:26px;height:26px;border-radius:50%;border:4px dashed var(--lime);display:inline-block}
.brand small{display:block;font-family:var(--font);font-weight:500;font-size:.7rem;color:#9aa0a8;letter-spacing:.08em;text-transform:uppercase}
.nav-toggle{display:none}
.nav-burger{display:none;color:#fff;cursor:pointer;font-weight:700;font-size:.85rem;letter-spacing:.1em;text-transform:uppercase;align-items:center;gap:8px}
.nav-burger span{width:20px;height:2px;background:#fff;display:block;box-shadow:0 6px 0 #fff,0 -6px 0 #fff}
.menu{list-style:none;display:flex;gap:4px;margin:0}
.menu a{display:block;color:#e8e8e8;text-decoration:none;font-weight:600;font-size:.92rem;padding:8px 12px;border-radius:999px}
.menu a:hover{background:#25282d;color:#fff}
.menu li.current a{background:var(--lime);color:var(--black)}
.menu li.accent a{color:var(--amber)}
.menu li.accent.current a{color:var(--black);background:var(--amber)}
@media (max-width:860px){.nav-burger{display:flex}.menu{display:none;position:absolute;left:0;right:0;top:100%;background:var(--black);flex-direction:column;padding:8px 16px 14px;border-bottom:3px solid var(--lime)}.nav-toggle:checked ~ .menu{display:flex}}
/* hero */
.hero{background:var(--black);color:#fff;padding:46px 0 52px}
.hero .wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr;gap:24px}.hero{padding:28px 0 34px}}
.hero .kicker,.kicker{display:inline-block;font-size:.74rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--black);background:var(--lime);padding:4px 10px;border-radius:999px;margin-bottom:14px}
.hero h1{color:#fff}
.hero h1 em{font-style:normal;color:var(--lime)}
.hero p{color:#cfd3d8;font-size:1.08rem}
.hero .pic{border-radius:18px;overflow:hidden;aspect-ratio:4/3;box-shadow:0 30px 60px rgba(0,0,0,.45)}
.hero .pic img{width:100%;height:100%;object-fit:cover}
.btn{display:inline-block;background:var(--lime);color:var(--black);font-weight:800;text-decoration:none;padding:12px 22px;border-radius:999px;border:0;cursor:pointer;font-family:inherit;font-size:.95rem}
.btn:hover{background:#fff;color:var(--black)}
.btn.ghost{background:transparent;color:#fff;border:2px solid #3a3e44}
.btn.ghost:hover{border-color:var(--lime)}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
/* sections */
.band{padding:44px 0}
.band.paper{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cols{display:grid;grid-template-columns:1.5fr 1fr;gap:44px}
@media (max-width:900px){.cols{grid-template-columns:1fr;gap:20px}}
.aside-box{background:var(--black);color:#ddd;border-radius:16px;padding:24px 24px 18px}
.aside-box h3{color:var(--lime);margin-top:0}
.aside-box a{color:#fff;text-decoration-color:var(--lime)}
.aside-box li{margin-bottom:10px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:8px 0 6px}
@media (max-width:760px){.stats{grid-template-columns:repeat(2,1fr)}}
.stat{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:18px}
.stat b{display:block;font-family:var(--head);font-size:1.7rem;line-height:1;color:var(--black)}
.stat span{display:block;margin-top:6px;font-size:.88rem;color:var(--muted)}
.sections{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:14px}
@media (max-width:860px){.sections{grid-template-columns:1fr}}
.sec{display:block;text-decoration:none;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:22px;border-top:5px solid var(--lime)}
.sec.amber{border-top-color:var(--amber)}
.sec:hover{box-shadow:0 14px 30px rgba(0,0,0,.08);color:var(--ink)}
.sec h3{margin:0 0 6px}
.sec p{margin:0;color:var(--ink-2);font-size:.95rem}
.sec .n{display:inline-block;margin-top:10px;font-size:.78rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:16px}
@media (max-width:960px){.grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.grid{grid-template-columns:1fr}}
.card{display:flex;flex-direction:column;text-decoration:none;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:16px;overflow:hidden}
.card:hover{box-shadow:0 16px 34px rgba(0,0,0,.1);color:var(--ink)}
.card .pic{aspect-ratio:16/10;overflow:hidden}
.card .pic img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.card:hover .pic img{transform:scale(1.04)}
.card .body{padding:16px 18px 20px}
.card .cat{font-size:.72rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--lime-d)}
.card .cat.amber{color:#d97b00}
.card h3{margin:6px 0 8px;font-size:1.1rem}
.card p{margin:0;font-size:.92rem;color:var(--ink-2)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:14px;flex-wrap:wrap}
.section-head h2{margin:0}
.section-head span{color:var(--muted);font-size:.9rem}
/* article */
.article{max-width:780px;margin:0 auto;padding:40px 0 30px}
.article .meta{color:var(--muted);font-size:.85rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;margin:-6px 0 22px}
.article .lead{font-size:1.15rem;color:var(--ink-2)}
.article figure{margin:24px 0}
.article figure img{border-radius:14px}
.article figcaption{font-size:.8rem;color:var(--muted);margin-top:8px}
.article blockquote{border-left:4px solid var(--lime);padding:6px 0 6px 18px;margin:20px 0;font-size:1.08rem;color:var(--ink-2)}
.callout{background:var(--black);color:#e6e6e6;border-radius:14px;padding:18px 22px;margin:24px 0}
.callout b{color:var(--lime)}
.callout a{color:#fff}
table.t{width:100%;border-collapse:collapse;margin:14px 0 22px;font-size:.94rem;background:var(--paper);border-radius:12px;overflow:hidden}
table.t th,table.t td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
table.t th{background:var(--black);color:var(--lime);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase}
.related{border-top:1px solid var(--line);margin-top:30px;padding-top:18px}
.related ul{list-style:none;margin:0}
.related li{margin-bottom:8px}
.page{max-width:780px;margin:0 auto;padding:40px 0 30px}
.form{display:grid;gap:12px;max-width:540px}
.form label{font-weight:700;font-size:.88rem}
.form input,.form textarea,.form select{width:100%;padding:11px 13px;border:1px solid #cfccc2;border-radius:10px;font:inherit;background:#fff}
/* footer */
.footer{background:var(--black);color:#9aa0a8;font-size:.86rem;margin-top:40px}
.footer .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:26px;padding:34px 22px}
@media (max-width:860px){.footer .wrap{grid-template-columns:1fr 1fr}}
.footer .fh{font-weight:700;font-size:1.05rem;color:#fff;font-family:var(--head);margin-bottom:10px}
.footer ul{list-style:none;margin:0}
.footer a{color:#d6d6d6;text-decoration:none}
.footer a:hover{color:var(--lime)}
.footer .base{border-top:1px solid #23262b;padding:14px 22px;max-width:var(--wrap);margin:0 auto;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}