.navbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 1.1rem 3vw 1.0rem 3vw;
      max-width: 980px;
      margin: 0 auto;
    }
    .logo {
      display: flex;
      align-items: center;
      font-weight: 800;
      letter-spacing: 1px;
      font-size: 1.6rem;
      color: var(--text-dark);
      gap: 0.7rem;
      user-select: none;
      text-decoration: none;
      transition: color 0.3s;
    }
    .logo:hover {
      opacity: 0.85;
    }
    body.light .logo {
      color: var(--text-light);
    }
    .logo-img {
      height: 2rem;
      width: auto;
      display: inline-block;
      vertical-align: middle;
      margin-bottom: 0.1rem;
    }
    .logo-text {
      font-size: 1.6rem;
      font-weight: 800;
      letter-spacing: 1px;
      text-decoration: none;
    }
    .navbar-menu {
      display: flex;
      gap: 2.5rem;
      align-items: center;
      font-size: 1.08rem;
    }
    .navbar-menu a {
      text-decoration: none;
      color: var(--text-dark);
      opacity: 1;
      font-weight: 600;
      transition: opacity 0.2s;
    }
    body.light .navbar-menu a {
      color: var(--text-light);
    }
    .navbar-menu a:hover {
      opacity: 0.8;
    }
    .toggle-btn {
      cursor: pointer;
      font-size: 1.5rem;
      margin-left: 1rem;
      border: none;
      background: none;
      color: inherit;
      outline: none;
      transition: color 0.2s;
    }
   .fixed-toggle {
  position: absolute;
  top: 1.2rem;
  right: 2.2rem;
  z-index: 99;
}
     .login-btn {
  padding: 0.36em 1.1em;
  background: var(--card-dark);
  color: var(--primary);
  font-weight: 700;
  border-radius: 1.3em;
  font-size: 1.04rem;
  margin-left: 1.2rem;
  text-decoration: none;
  border: 2px solid var(--primary);
  transition: background 0.22s, color 0.22s, border 0.22s;
  box-shadow: 0 0 0.5em rgba(0,0,0,0.04);
  cursor: pointer;
  letter-spacing: 0.02em;
  outline: none;
}
.login-btn:hover,
.login-btn:focus {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

body.light .login-btn {
  background: var(--card-light);
  color: var(--primary);
  border-color: var(--primary);
}
body.light .login-btn:hover,
body.light .login-btn:focus {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

@media screen and (max-width: 768px) {
  .navbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.7rem;
  }
  .navbar-menu {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
    width: 100%;
    margin-top: 0.6rem;
  }
  .fixed-toggle {
    top: 1rem;
    right: 1rem;
  }
}

@media screen and (max-width: 640px) {
  .hero h1 {
    font-size: 1.9rem;
    line-height: 1.3;
  }
  .hero p {
    font-size: 1rem;
    line-height: 1.45;
  }
  .checklist span {
    font-size: 0.95rem;
    padding: 0.3rem 0.7rem;
  }
  .info-row {
    font-size: 0.9rem;
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .form-card {
    padding: 1rem 1.2rem;
    width: 95vw;
    margin: 1rem auto 4vh auto;
  }

  .submit-btn {
    font-size: 1rem;
    padding: 0.7rem 0;
  }

  .output {
    font-size: 1rem;
    padding: 1rem;
  }
}

@media screen and (max-width: 600px) {
  .link-row {
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: center;
  }

  .link-row input[type="url"] {
    width: calc(100% - 130px);
    border-radius: 9px;
  }

  .link-row button {
    width: 120px;
    margin-left: 0.4rem;
    font-size: 0.85rem;
    padding: 0.45rem 0.6rem;
    white-space: nowrap;
    border-radius: 9px;
  }

  .slider-label-row {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.2rem;
  }

  .slider-label-row .scale-label {
    text-align: center !important;
    font-size: 0.85rem;
    width: 100%;
  }

  .slider-label-row strong {
    font-size: 1rem;
    margin: 0.2rem 0;
    text-align: center;
  }

  .custom-crit-row {
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
  }

  .custom-crit-row input[type="text"] {
    width: 90%;
    max-width: none;
    text-align: center;
  }

  .custom-crit-value {
    font-size: 1.1rem;
    text-align: center;
    display: block;
    margin: 0 auto;
  }

  .custom-slider-wrap {
    width: 90%;
    flex-direction: column;
    align-items: center;
  }

  .custom-slider-wrap input[type="range"] {
    width: 100%;
  }

  .custom-slider-text {
    margin: 0.2rem 0;
    font-size: 0.85rem;
  }

  .form-card {
    overflow-x: hidden;
  }

  .form-card {
    max-width: 100% !important;
    width: 100vw !important;
    padding-left: 1rem !important;
    padding-right: 1rem !important;
    box-sizing: border-box;
    overflow-x: hidden;
  }

  html, body {
    max-width: 100vw;
    overflow-x: hidden;
  }

  .main-content {
    width: 100%;
    overflow-x: hidden;
  }

  .slider-block {
    margin-bottom: 1.2rem;
    text-align: center;
  }

  .slider-block strong {
    display: block;
    font-size: 1.05rem;
    margin-bottom: 0.3rem;
  }

  .slider-block .scale-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    margin: 0.3rem 0;
    padding: 0 0.3rem;
  }

  .slider-block input[type="range"] {
    width: 100%;
  }

  .custom-slider-block {
    margin-bottom: 1.4rem;
    text-align: center;
  }

  .custom-slider-block input[type="text"] {
    width: 100%;
    padding: 0.4rem;
    font-size: 1rem;
    margin-bottom: 0.3rem;
    box-sizing: border-box;
  }

  .custom-slider-block .custom-value {
    font-size: 1rem;
    margin-bottom: 0.3rem;
  }

  .custom-slider-block .scale-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    margin: 0.3rem 0;
    padding: 0 0.3rem;
  }

  .custom-slider-block input[type="range"] {
    width: 100%;
  }
}
@media screen and (max-width: 600px) {
  .slider-row {
    margin-bottom: 1.2rem;
  }

  .slider-label-row {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.2rem;
  }

  .slider-label-row strong.slider-label-center {
    font-size: 1.05rem;
    text-align: center;
  }

  .slider-label-row .scale-label {
    font-size: 0.85rem;
    display: flex;
    justify-content: space-between;
    width: 100%;
    padding: 0 0.3rem;
  }

  .slider-container input[type="range"] {
    width: 100%;
  }

  .custom-crit-row {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
  }

  .custom-crit-row input[type="text"] {
    width: 100%;
    max-width: 90%;
    font-size: 1rem;
    text-align: center;
  }

  .custom-crit-value {
    font-size: 1rem;
    text-align: center;
  }

  .custom-slider-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 90%;
  }

  .custom-slider-text {
    font-size: 0.85rem;
    margin: 0.2rem 0;
  }

  .custom-slider-wrap input[type="range"] {
    width: 100%;
  }
}

@media screen and (max-width: 600px) {
  .slider-label-row {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    position: relative;
  }

  .slider-label-row strong {
    text-align: center;
    font-size: 1rem;
  }

  .slider-label-row .scale-label:first-child {
    position: absolute;
    left: 0;
    top: 1.6rem;
    font-size: 0.85rem;
  }

  .slider-label-row .scale-label:last-child {
    position: absolute;
    right: 0;
    top: 1.6rem;
    font-size: 0.85rem;
  }
}

@media screen and (max-width: 600px) {
  .slider-label-row {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    margin-bottom: 1.5rem;
  }

  .slider-label-row strong.slider-label-center {
    font-size: 1rem;
    text-align: center;
    margin-bottom: 0.6rem;
  }

  .slider-label-row .scale-label:first-child {
    position: absolute;
    top: 0;
    left: 0;
    transform: translateY(0.5rem);
    font-size: 0.85rem;
    text-align: left;
    width: 0%;
  }

  .slider-label-row .scale-label:last-child {
    position: absolute;
    top: 0;
    right: 0;
    transform: translateY(0.5rem);
    font-size: 0.85rem;
    text-align: right;
    width: 25%;
  }
}

@media screen and (max-width: 600px) {
  .slider-label-row strong.slider-label-center {
    display: block;
    text-align: center;
    font-size: 1rem;
    margin-bottom: 0.6rem;
    width: 100%;
  }
  button[data-label-mobile] {
    position: relative !important;
    font-size: 0 !important;         /* Versteckt Originaltext */
    color: transparent !important;   /* Sicherheitshalber nochmal */
    overflow: hidden;
    height: 2.4rem;                  /* <<< Höhe anpassen */
    padding: 0;                      /* <<< Reset für mobile */
  }

  button[data-label-mobile]::after {
    content: attr(data-label-mobile);
    font-size: 0.9rem;
    color: white;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    white-space: nowrap;
    pointer-events: none;
  }
}



@media screen and (max-width: 600px) {
  .custom-crit-row {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
  }

  .custom-crit-row input[type="text"] {
    width: auto;
    min-width: 100px;
    font-size: 1rem;
    padding: 0.4rem 0.6rem;
    text-align: center;
  }

  .custom-crit-label,
  .custom-crit-value {
    font-size: 1.1rem;
    color: #ef4423;
    white-space: nowrap;
  }

  .custom-slider-wrap {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-width: 150px;
  }

  .custom-slider-wrap input[type="range"] {
    width: 100%;
  }

  .custom-slider-text {
    font-size: 0.85rem;
    white-space: nowrap;
    margin: 0 0.3rem;
  }
}