:root {
        --bg1: #094786;
        --bg2: #64304e;
        --panel: #1b2540;
        --door1: #700a0f;
        --door2: #8b0845;
        --txt: #f7f7f7;
        --accent: #f0d97a;
        --space: clamp(8px, 3vw, 24px);
      }

      body {
        min-height: 100vh;
        margin: 0;
        display: grid;
        grid-template-rows: auto 1fr;
        background: linear-gradient(180deg, var(--bg1), var(--bg2));
        color: var(--txt);
        font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial,
          sans-serif;
      }

      header {
        padding: 16px;
        margin: 12px;
        text-align: center;
        color: var(--accent);
        font-size: clamp(16px, 5vw, 32px);
      }

      .grid {
        display: grid;
        gap: clamp(12px, 3vw, 20px);
        /* statt fixem 80px-Padding + fester Breite */
        width: min(100% - 2 * var(--space), 1000px);
        margin: 0 auto 24px;
        padding-inline: var(--space);
        justify-content: center;

        /* automatische Spalten + größere Mindestbreite */
        grid-template-columns: repeat(
          auto-fit,
          minmax(clamp(110px, 28vw, 160px), 1fr)
        );
      }

      /* Feintuning: ab Tablet etwas größer, ab großem Screen komfortabel */
      @media (min-width: 600px) {
        .grid {
          grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
        }
      }
      @media (min-width: 1024px) {
        .grid {
          grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        }
      }

      /* Türchen-Karte mit aufklappender Tür (Scharnier links) */
      .door {
        position: relative;
        aspect-ratio: 1 / 1;
        background: var(--panel);
        color: var(--txt);
        border-radius: 12px;
        cursor: pointer;
        overflow: hidden;
        box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
      }

      /* Nummer im Hintergrund bleibt sichtbar */
      .door .number {
        position: absolute;
        inset: 0;
        display: grid;
        place-items: center;
        font-weight: 800;
        font-size: clamp(18px, 4vw, 28px);
        color: var(--accent);
        z-index: 0;
        user-select: none;
      }

      /* Türblatt */
      .door .leaf {
        position: absolute;
        inset: 0;
        border-radius: 12px;
        background: linear-gradient(135deg, var(--door1), var(--door2));
        transform-origin: left center;
        transform: perspective(600px) rotateY(0deg);
        transition: transform 0.6s ease;
        z-index: 1;
      }
      .door .leaf::after {
        content: "";
        position: absolute;
        right: 8px;
        top: 50%;
        width: 10px;
        height: 10px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.8);
        transform: translateY(-50%);
      }
      .door.open .leaf {
        transform: perspective(600px) rotateY(-110deg);
      }
      .door:not(.open):hover .leaf {
        filter: brightness(1.05);
      }

      /* Schnee */
      .snow {
        position: fixed;
        inset: 0;
        pointer-events: none;
        overflow: hidden;
      }
      .snow i {
        position: absolute;
        top: -8px;
        width: 4px;
        height: 4px;
        background: #fff;
        border-radius: 50%;
        opacity: 0.9;
        animation: fall linear infinite;
      }
      @keyframes fall {
        to {
          transform: translateY(110vh);
        }
      }

      /* Pop-up */
      .popup-wrap {
        position: fixed;
        inset: 0;
        display: none;
        place-items: center;
        background: rgba(0, 0, 0, 0.45);
        z-index: 1000;
      }
      .popup-wrap.show {
        display: grid;
        animation: fade 0.15s ease-out;
      }
      .popup {
        background: var(--panel);
        color: #fff;
        padding: 16px 20px;
        border-radius: 12px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
        max-width: min(90vw, 560px);
        text-align: center;
        font-size: clamp(16px, 3.5vw, 22px);
        font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial,
          sans-serif;
        font-weight: 600;
        line-height: 1.35;
        letter-spacing: 0.2px;
      }
      .popup a {
        color: #ffd966;
        text-decoration: underline;
      }
      @keyframes fade {
        from {
          opacity: 0;
        }
        to {
          opacity: 1;
        }
      }

#resetBtn {
  background: linear-gradient(135deg, #c41e3a, #8b0000); /* Rot-Verlauf */
  color: #f0d97a;          /* Goldene Schrift */
  border: 2px solid #f0d97a;
  box-shadow: 0 4px 10px rgba(0,0,0,0.4);
position: relative;
    font-size: clamp(12px, 2.5vw, 18px);
    left: -20vw;
    border-radius: 8px;
    cursor: pointer;
}


/* admin */
.admin-bar {
  margin-top: 8px;
  font-size: clamp(12px, 2.5vw, 15px);
  color: var(--txt);
}
.admin-btn {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 4px 10px;
  cursor: pointer;
  font-size: inherit;
}
.admin-info input {
  width: 5em;
  font-size: inherit;
}
body.admin .door {
  outline: 2px dashed var(--accent);
  outline-offset: -4px;
}
.admin-form {
  display: grid;
  gap: 10px;
  width: min(90vw, 520px);
  text-align: left;
}
.admin-form input,
.admin-form textarea {
  font: inherit;
  font-weight: 400;
  padding: 8px;
  border-radius: 6px;
  border: 1px solid #555;
  background: #0f1628;
  color: var(--txt);
  box-sizing: border-box;
  width: 100%;
}
.admin-hint {
  font-size: 0.7em;
  font-weight: 400;
  opacity: 0.7;
}
.admin-preview {
  font-size: 0.9em;
  padding: 8px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  min-height: 1.5em;
}
.admin-error {
  color: #ff8a8a;
  font-size: 0.8em;
}
.admin-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}