/* Inter – selbst gehostet (OFL), keine externen Requests */
@font-face{font-family:"Inter";font-style:normal;font-weight:400;font-display:swap;src:url("/assets/fonts/inter-latin-ext-400-normal.woff2") format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Inter";font-style:normal;font-weight:400;font-display:swap;src:url("/assets/fonts/inter-latin-400-normal.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Inter";font-style:normal;font-weight:500;font-display:swap;src:url("/assets/fonts/inter-latin-ext-500-normal.woff2") format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Inter";font-style:normal;font-weight:500;font-display:swap;src:url("/assets/fonts/inter-latin-500-normal.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Inter";font-style:normal;font-weight:600;font-display:swap;src:url("/assets/fonts/inter-latin-ext-600-normal.woff2") format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Inter";font-style:normal;font-weight:600;font-display:swap;src:url("/assets/fonts/inter-latin-600-normal.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Inter";font-style:normal;font-weight:700;font-display:swap;src:url("/assets/fonts/inter-latin-ext-700-normal.woff2") format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Inter";font-style:normal;font-weight:700;font-display:swap;src:url("/assets/fonts/inter-latin-700-normal.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

/* VoltaVia – volta-via.de
   Cookie-frei, keine externen Ressourcen, System-Schriften. */

:root {
  --navy: #003d6c;
  --navy-dark: #002a4c;
  --green: #5ca754;
  --green-dark: #3f8a39;
  --ink: #1b2630;
  --muted: #5b6b7a;
  --line: #dde4ea;
  --bg: #ffffff;
  --bg-soft: #f3f6f9;
  --bg-navy: #003d6c;
  --max: 1120px;
  --radius: 10px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--navy); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--green-dark); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; color: var(--navy-dark); font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 4.2vw, 3rem); letter-spacing: -0.02em; hyphens: manual; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; letter-spacing: -.02em; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }

/* Skip-Link */
.skip { position: absolute; left: -999px; top: 8px; background: var(--navy); color: #fff; padding: 8px 12px; border-radius: 6px; z-index: 100; }
.skip:focus { left: 8px; }

/* Header */
.site-header { border-bottom: 1px solid var(--line); background: rgba(255,255,255,.96); backdrop-filter: blur(6px); position: sticky; top: 0; z-index: 50; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 68px; gap: 16px; }
.brand img { height: 36px; width: auto; }
.nav { display: flex; align-items: center; gap: 24px; font-size: .95rem; }
.nav a { text-decoration: none; color: var(--ink); font-weight: 500; }
.nav a:hover { color: var(--navy); }
.lang { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: 3px; padding: 5px 11px; font-size: .85rem; font-weight: 600; letter-spacing: .02em; }
.lang svg { width: 21px; height: auto; display: block; border-radius: 2px; box-shadow: 0 0 0 1px rgba(0,0,0,.08); }
.lang:hover { border-color: var(--navy); }
.menu-btn { display: none; background: none; border: 1px solid var(--line); border-radius: 8px; width: 40px; height: 40px; cursor: pointer; padding: 0; }
.menu-btn span { display: block; width: 18px; height: 2px; background: var(--navy); margin: 4px auto; transition: .2s; }
@media (max-width: 720px) {
  .menu-btn { display: block; }
  .nav { position: absolute; left: 0; right: 0; top: 68px; background: #fff; border-bottom: 1px solid var(--line); flex-direction: column; align-items: stretch; gap: 0; padding: 8px 0; display: none; }
  .nav.open { display: flex; }
  .nav a { padding: 12px 24px; }
  .nav .lang { margin: 8px 24px; text-align: center; }
  .site-header.menu-open .menu-btn span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .site-header.menu-open .menu-btn span:nth-child(2) { opacity: 0; }
  .site-header.menu-open .menu-btn span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
}

/* Hero */
.hero { padding: 40px 0 36px; background: #fff; overflow: hidden; }
.hero .hero-text { max-width: 860px; margin-bottom: 28px; }
.hero .kicker { font-size: .82rem; text-transform: uppercase; letter-spacing: .12em; color: var(--green-dark); font-weight: 700; margin-bottom: 14px; }
.hero h1 { font-size: clamp(2.3rem, 5vw, 3.6rem); font-weight: 800; letter-spacing: -0.025em; line-height: 1.08; max-width: 14ch; margin-bottom: 18px; }
.hero .lead { font-size: 1.15rem; color: var(--muted); max-width: 66ch; line-height: 1.55; }
.hero .lead strong { color: var(--navy-dark); font-weight: 600; }
.hero-img { margin: 0 auto; max-width: 1000px; }
.hero-img img { width: 100%; -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 8%, #000 92%, transparent 100%); mask-image: linear-gradient(90deg, transparent 0, #000 8%, #000 92%, transparent 100%); }
.facts-strip { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-soft); overflow: hidden; }
.facts-strip .fact { padding: 18px 22px; border-left: 1px solid var(--line); }
.facts-strip .fact:first-child { border-left: 0; }
.facts-strip .fact strong { display: block; font-size: 1.35rem; font-weight: 800; color: var(--navy); line-height: 1.15; letter-spacing: -.01em; }
.facts-strip .fact span { color: var(--muted); font-size: .9rem; }
@media (max-width: 760px) { .facts-strip { grid-template-columns: 1fr; } .facts-strip .fact { border-left: 0; border-top: 1px solid var(--line); } .facts-strip .fact:first-child { border-top: 0; } .hero-img { margin: 0 -24px; } .hero-img img { -webkit-mask-image: none; mask-image: none; } }

/* Landing */
.landing .hero { padding-bottom: 48px; border-bottom: 1px solid var(--line); }
.badge { display: inline-flex; align-items: center; gap: 8px; background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; font-size: .88rem; color: var(--navy-dark); margin-top: 6px; }
.badge::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(92,167,84,.2); }

/* Buttons */
.btn { display: inline-block; padding: 12px 22px; border-radius: 8px; font-weight: 600; text-decoration: none; border: 2px solid var(--navy); color: var(--navy); background: #fff; transition: .15s; }
.btn:hover { background: var(--navy); color: #fff; }
.btn.primary { background: var(--navy); color: #fff; }
.btn.primary:hover { background: var(--navy-dark); border-color: var(--navy-dark); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }

/* Sections */
.section { padding: 64px 0; }
.section.soft { background: var(--bg-soft); }
.section.navy { background: var(--bg-navy); color: #e8f0f7; }
.section.navy h2, .section.navy h3 { color: #fff; }
.section.navy a { color: #cfe6c9; }
.section.navy .btn { border-color: #fff; color: #fff; background: transparent; }
.section.navy .btn:hover { background: #fff; color: var(--navy); }
.section.navy .btn.primary { background: var(--green); border-color: var(--green); color: #fff; }
.section.navy .btn.primary:hover { background: var(--green-dark); border-color: var(--green-dark); }
.section-head { max-width: 760px; margin-bottom: 32px; }
.section-head .kicker { font-weight: 700; }
.section-head p.muted { max-width: 68ch; }
.section-head .kicker { font-size: .8rem; text-transform: uppercase; letter-spacing: .12em; color: var(--green-dark); font-weight: 600; margin-bottom: 8px; }
.section.navy .kicker { color: #9ed494; }

.grid { display: grid; gap: 24px; }
.grid.c2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); }
.grid.c3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.card h3 { margin-top: 0; font-size: 1.15rem; font-weight: 700; }
.card .num { font-size: 2.4rem; font-weight: 700; color: var(--green-dark); line-height: 1; margin-bottom: 8px; }
.section.navy .card { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.15); }

/* Key facts */
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 18px; margin-top: 28px; }
.fact { border-left: 4px solid var(--green); padding: 4px 0 4px 16px; }
.fact strong { display: block; font-size: 1.8rem; color: var(--navy); line-height: 1.1; }
.fact span { color: var(--muted); font-size: .95rem; }

/* Abstract / prose */
.prose { max-width: 780px; }
.prose p { margin-bottom: 1.1em; }
.prose ul { padding-left: 1.2em; }
.prose li { margin-bottom: .4em; }

/* Partners */
.partners { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.partner { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
.partner .role { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-bottom: 6px; }
.partner strong { color: var(--navy-dark); }

/* Projektziele */
.questions { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; counter-reset: q; }
.questions li { display: grid; grid-template-columns: 52px 1fr; gap: 16px; align-items: center; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 20px; }
.questions li::before { counter-increment: q; content: counter(q); width: 44px; height: 44px; border-radius: 50%; border: 2px solid var(--navy); color: var(--navy); font-weight: 700; font-size: 1.1rem; display: flex; align-items: center; justify-content: center; }
.questions li p { margin: 0; font-weight: 500; color: var(--navy-dark); }
.split { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: start; }
@media (max-width: 800px) { .split { grid-template-columns: 1fr; } }

/* Logo grid */
.logos { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.logo-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px 18px; display: flex; flex-direction: column; gap: 14px; text-decoration: none; color: inherit; }
.logo-card:hover { border-color: var(--navy); color: inherit; }
.logo-card .img { height: 60px; display: flex; align-items: center; }
.logo-card .img img { height: 52px; width: auto; max-width: 200px; object-fit: contain; }
.logo-card .role { font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.logo-card .name { font-weight: 600; color: var(--navy-dark); font-size: .95rem; line-height: 1.35; }
.wordmark-plain { font-weight: 600; font-size: 1.25rem; color: var(--ink); letter-spacing: -.01em; }
.wordmark { font-weight: 800; font-size: 1.5rem; color: var(--navy); letter-spacing: -.01em; }
.wordmark span { color: var(--green); }
.funding-logos { display: flex; flex-wrap: wrap; gap: 28px; align-items: center; margin-top: 20px; }
.funding-logos img { height: 52px; width: auto; max-width: 170px; object-fit: contain; }
.funding-logos { justify-content: flex-start; gap: 22px 32px; }
.funding-logos .text-logo { font-size: .85rem; color: var(--muted); line-height: 1.3; border-left: 3px solid var(--line); padding-left: 12px; }
.funding-logos .text-logo strong { display: block; color: var(--navy-dark); }

/* Funding */
.funding-grid { display: grid; grid-template-columns: 340px 1fr; gap: 32px; align-items: center; }
.funding-map img { width: 100%; max-width: 300px; }
.funding-map figcaption { font-size: .85rem; color: var(--muted); margin-top: 6px; }
.funding-map figcaption strong { color: var(--navy); }
@media (max-width: 760px) { .funding-grid { grid-template-columns: 1fr; } }
.funding { border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 28px; background: #fff; }
.funding .flags { font-weight: 700; color: var(--navy); letter-spacing: .06em; }

/* Timeline – als Stromkabel */
.timeline { list-style: none; padding: 0; margin: 24px 0 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 0; position: relative; }
.timeline.cable::before { content: ""; position: absolute; left: 0; right: 40px; top: 12px; height: 6px; border-radius: 3px; background: linear-gradient(90deg, var(--navy) 0 74%, transparent 74%), repeating-linear-gradient(90deg, var(--navy) 0 10px, transparent 10px 18px); }
.timeline.cable::after { content: ""; position: absolute; right: 0; top: 2px; width: 40px; height: 26px; background: var(--navy); border-radius: 6px 10px 10px 6px; -webkit-mask: radial-gradient(circle at 12px 8px, transparent 3px, #000 3.5px), radial-gradient(circle at 12px 18px, transparent 3px, #000 3.5px); -webkit-mask-composite: source-in; mask: radial-gradient(circle at 12px 8px, transparent 3px, #000 3.5px), radial-gradient(circle at 12px 18px, transparent 3px, #000 3.5px); mask-composite: intersect; }
.timeline li { position: relative; padding: 36px 20px 0 0; }
.timeline li::before { content: ""; position: absolute; left: 0; top: 3px; width: 24px; height: 24px; border-radius: 50%; background: #fff; border: 4px solid var(--navy); box-sizing: border-box; }
.timeline li.done::before { background: var(--navy); box-shadow: inset 0 0 0 3px #fff; }
.timeline li.next::before { border-color: var(--green); background: var(--green); box-shadow: inset 0 0 0 3px #fff, 0 0 0 6px rgba(92,167,84,.18); }
.timeline .when { font-weight: 800; color: var(--navy-dark); display: block; font-size: 1.05rem; }
.timeline .what { color: var(--muted); font-size: .92rem; max-width: 26ch; display: block; }
@media (max-width: 700px) { .timeline { grid-template-columns: 1fr; gap: 6px; } .timeline.cable::before, .timeline.cable::after { display: none; } .timeline li { padding: 4px 0 8px 40px; } .timeline li::before { top: 6px; } }

/* System figure */
.system { margin: 0 auto; max-width: 860px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px 18px; box-shadow: 0 2px 10px rgba(0,61,108,.05); }
.system img { width: 100%; display: block; }
.system .steps5 { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line); }
.steps5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin: 18px 0 0; }
.steps5 div { font-size: .9rem; color: var(--navy-dark); font-weight: 600; text-transform: uppercase; letter-spacing: .06em; display: flex; align-items: center; gap: 8px; }
.steps5 span.n { display: inline-flex; flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%; background: var(--navy); color: #fff; font-size: .8rem; font-weight: 700; align-items: center; justify-content: center; }
@media (max-width: 760px) { .steps5 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 460px) { .steps5 { grid-template-columns: 1fr; } }
.system figcaption { font-size: .9rem; color: var(--muted); margin-top: 10px; }

/* Audience cards */
.aud { border-top: 4px solid var(--green); }
.aud h3 { display: flex; align-items: center; gap: 10px; }
.aud .ico { width: 34px; height: 34px; border-radius: 8px; background: var(--bg-soft); display: inline-flex; align-items: center; justify-content: center; color: var(--navy); }
.aud ul { padding-left: 1.1em; margin: 8px 0 0; color: var(--ink); }
.aud li { margin-bottom: .35em; }

/* Person */
.person { display: flex; gap: 16px; align-items: center; }
.person .avatar { width: 56px; height: 56px; border-radius: 50%; background: rgba(255,255,255,.12); display: flex; align-items: center; justify-content: center; font-weight: 700; color: #fff; flex-shrink: 0; }
.person .pname { font-weight: 700; color: #fff; }
.person .prole { font-size: .9rem; color: #b9c8d6; }

/* Footer */
.site-footer { background: var(--navy-dark); color: #b9c8d6; padding: 40px 0 28px; font-size: .92rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px; align-items: center; }
.site-footer a { color: #e6eef5; text-decoration: none; margin-right: 18px; }
.site-footer a:hover { text-decoration: underline; }
.site-footer .copy { width: 100%; margin-top: 12px; color: #8aa0b4; }

/* Legal pages */
.legal { padding: 56px 0 72px; }
.legal .prose { max-width: 720px; }
.legal address { font-style: normal; margin-bottom: 1.2em; }
.todo { background: #fff6d6; border-left: 4px solid #e0b000; padding: 8px 12px; font-size: .9rem; }

@media (max-width: 600px) {
  body { font-size: 16px; }
  .section { padding: 48px 0; }
  .timeline li { grid-template-columns: 1fr; gap: 4px; }
}
@media print {
  .site-header, .site-footer, .btn-row { display: none; }
}