/* ============ Header ============ */
  .site-header{
    background: var(--paper);
    border-bottom: 1px solid var(--line);
  }
  .site-header .wrap{
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-block: 20px;
  }
  .logo{
    display: flex;
    align-items: baseline;
    gap: 2px;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-weight: 700;
    font-size: 1.5rem;
  }
  .logo img{ display: block; height: 40px; width: auto; }
  .logo .l1{ color: var(--green); }
  .logo .flagmark{
    display: inline-block;
    width: 10px;
    height: 15px;
    margin: 0 5px;
    background: linear-gradient(135deg, var(--green) 0 45%, #ffffff 45% 55%, #c81e1e 55% 100%);
    border: 1px solid var(--line);
    border-radius: 1px;
    transform: translateY(2px);
  }
  .logo .l2{ color: var(--nav-fg); }
  .site-header .org{
    font-size: 0.82rem;
    color: var(--ink-soft);
    text-align: right;
    max-width: 340px;
    line-height: 1.4;
  }
  @media (max-width: 700px){
    .site-header .org{ display: none; }
  }

  /* ============ Hero ============ */
  .hero{ background: var(--paper); }
  .hero .wrap{
    padding-block: 56px 64px;
    display: grid;
    grid-template-columns: 1.25fr 0.95fr;
    gap: 44px;
    align-items: start;
  }
  @media (max-width: 860px){
    .hero .wrap{ grid-template-columns: 1fr; }
  }
  .hero h1{
    font-size: clamp(1.9rem, 4vw, 2.7rem);
    line-height: 1.2;
    margin-top: 14px;
    font-weight: 700;
    color: var(--heading);
  }
  .hero .lede{
    margin-top: 22px;
    max-width: 56ch;
    color: var(--ink-soft);
    font-size: 1rem;
  }
  .hero .salutation{
    margin-top: 18px;
    max-width: 58ch;
    color: var(--ink-soft);
  }
  .cta-row{
    margin-top: 30px;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
  }
  .btn{
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--green);
    color: #ffffff;
    text-decoration: none;
    font-weight: 400;
    font-size: 1rem;
    padding: 12px 20px;
    border-radius: 6px;
    border: 1px solid var(--green-border);
    box-shadow: var(--shadow);
    transition: background 0.15s ease;
  }
  .btn:hover{ background: var(--green-hover); color: #ffffff; }
  .btn.ghost{
    background: transparent;
    color: var(--ink);
    box-shadow: none;
    border: 1px solid var(--line);
  }
  .btn.ghost:hover{ border-color: var(--green); color: var(--green); background: transparent; }

  /* ticket / essentials card */
  .ticket{
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 6px;
    overflow: hidden;
  }
  .ticket .date-block{
    background: var(--paper-raised);
    border-bottom: 1px solid var(--line);
    padding: 20px 24px;
    display: flex;
    align-items: baseline;
    gap: 14px;
  }
  .ticket .date-block .day{
    font-size: 2.6rem;
    font-weight: 700;
    line-height: 1;
    color: var(--green);
  }
  .ticket .date-block .month-year{
    font-size: 0.95rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    line-height: 1.4;
    color: var(--ink);
  }
  .ticket dl{
    margin: 0;
    padding: 20px 24px 22px;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 14px 16px;
    font-size: 0.95rem;
  }
  .ticket dt{
    font-weight: 700;
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ink-soft);
    white-space: nowrap;
    padding-top: 2px;
  }
  .ticket dd{
    margin: 0;
    color: var(--ink);
  }
  .ticket .perforation{
    border-top: 1px dashed var(--line);
    margin: 0 24px;
  }
  .ticket .map-link{
    display: block;
    padding: 14px 24px 20px;
    font-size: 0.88rem;
    font-weight: 400;
  }

  /* ============ Letter / intro section ============ */
  .letter{ max-width: 68ch; }
  .letter p + p{ margin-top: 1.1em; }
  .letter .lead-quote{
    font-size: 1.3rem;
    font-weight: 700;
    line-height: 1.45;
    color: var(--heading);
    border-left: 3px solid var(--green);
    padding-left: 22px;
  }

  /* ============ Challenges (chips) ============ */
  .panel{ background: var(--panel); }
  .challenges-grid{
    margin-top: 28px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
  }
  .chip{
    background: var(--paper-raised);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 10px 18px;
    font-size: 0.92rem;
    font-weight: 400;
    color: var(--ink);
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }
  .chip::before{
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--green);
    flex: none;
  }
  .two-col{
    margin-top: 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  @media (max-width: 760px){
    .two-col{ grid-template-columns: 1fr; }
  }

  /* ============ Programme ============ */
  .programme-grid{
    margin-top: 32px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }
  @media (max-width: 760px){
    .programme-grid{ grid-template-columns: 1fr; }
  }
  .prog-item{
    border-top: 3px solid var(--green);
    padding-top: 16px;
  }
  .prog-item .num{
    color: var(--green);
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    font-weight: 700;
  }
  .prog-item h3{
    font-size: 1.15rem;
    margin-top: 8px;
    font-weight: 700;
  }
  .prog-item p{
    margin-top: 10px;
    color: var(--ink-soft);
    font-size: 0.95rem;
  }

  /* ============ Callout: Fragen einreichen ============ */
  .callout{
    background: var(--panel);
    border: 1px solid var(--line);
    border-left: 5px solid var(--green);
    border-radius: 6px;
    padding: 30px clamp(20px, 4vw, 40px);
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 24px;
    align-items: start;
  }
  @media (max-width: 640px){
    .callout{ grid-template-columns: 1fr; }
  }
  .callout .mark{
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--green);
    line-height: 1;
  }
  .callout h2{ font-size: 1.4rem; font-weight: 700; }
  .callout p{ margin-top: 12px; color: var(--ink-soft); }

  /* ============ Footer / registration ============ */
  .site-footer{
    background: var(--footer-bg);
    color: var(--footer-fg);
  }
  .site-footer h2{
    color: var(--footer-fg);
    font-size: clamp(1.5rem, 3vw, 1.9rem);
    font-weight: 700;
  }
  .site-footer .eyebrow{ color: var(--footer-fg); opacity: 0.85; }
  .site-footer .wrap{ padding-block: 56px 36px; }
  .footer-grid{
    margin-top: 28px;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
  }
  @media (max-width: 760px){
    .footer-grid{ grid-template-columns: 1fr; }
  }
  .footer-grid dl{
    margin: 22px 0 0;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 10px 16px;
    font-size: 0.92rem;
  }
  .footer-grid dt{
    font-weight: 700;
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #d9ecd9;
  }
  .footer-grid dd{ margin: 0; color: #ffffff; }
  .footer-grid a, .site-footer p a{ color: #ffffff; text-decoration: underline; }
  .site-footer p{ color: #eaf5ea; }
  .site-footer .btn{ background: #ffffff; color: var(--green); border-color: #ffffff; }
  .site-footer .btn:hover{ background: #eaf5ea; color: var(--green-hover); }
    .fineprint{
      margin-top: 44px;
      padding-top: 22px;
      border-top: 1px solid rgba(255,255,255,0.35);
      font-size: 0.82rem;
      color: #d9ecd9;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 10px;
    }

    .fineprinta{
      margin-top: 0px;
      padding-top: 0px;
      font-size: 0.82rem;
      color: #d9ecd9;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 10px;
      text-decoration: none;
    }

    @media (prefers-reduced-motion: reduce){
    html{ scroll-behavior: auto; }
    .btn{ transition: none; }
  }