/* ── Cipher page ── */
    .cipher-hero {
      padding: var(--s7) 0 var(--s5);
      text-align: center;
    }
    .cipher-hero h1 {
      font-size: var(--fh2);
      margin: .3rem 0 .8rem;
    }
    .cipher-hero p {
      font-size: var(--flg);
      max-width: 580px;
      margin: 0 auto var(--s5);
    }

    /* Key display */
    .key-card {
      padding: var(--s4) var(--s5);
      margin-bottom: var(--s5);
      display: flex;
      flex-direction: column;
      gap: var(--s3);
    }
    .key-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: var(--s2);
    }
    .key-header h3 { font-size: var(--flg); margin: 0; }
    .key-display {
      font-family: 'Courier New', monospace;
      font-size: .82rem;
      color: var(--accent);
      word-break: break-all;
      background: rgba(99,102,241,.07);
      border: 1px solid rgba(99,102,241,.20);
      border-radius: var(--r2);
      padding: var(--s3) var(--s4);
      letter-spacing: .04em;
      line-height: 1.7;
      min-height: 52px;
      display: flex;
      align-items: center;
    }
    .key-actions {
      display: flex;
      gap: var(--s2);
      flex-wrap: wrap;
    }

    /* Cipher grid */
    .cipher-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: var(--s4);
      margin-bottom: var(--s4);
    }
    .cipher-panel {
      padding: var(--s4) var(--s5);
      display: flex;
      flex-direction: column;
      gap: var(--s3);
    }
    .panel-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: var(--s2);
    }
    .panel-header h3 { font-size: var(--flg); margin: 0; }
    .cipher-textarea {
      width: 100%;
      min-height: 200px;
      padding: var(--s3) var(--s4);
      background: rgba(255,255,255,.04);
      border: 1px solid var(--border);
      border-radius: var(--r2);
      color: var(--text);
      font-family: 'Courier New', monospace;
      font-size: .85rem;
      line-height: 1.7;
      resize: vertical;
      outline: none;
      transition: border-color .25s, box-shadow .25s;
    }
    body.light .cipher-textarea { background: rgba(255,255,255,.7); }
    .cipher-textarea:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 4px rgba(99,102,241,.12);
    }
    .cipher-textarea::placeholder { color: var(--text2); opacity: .6; }

   
.cipher-arrow { display: none; }

/* Pulsante azione cifra/decifra */
.cipher-action-btn {
  width: 100%;
  min-height: 60px;
  border-radius: var(--r2);
  font-size: var(--fmd);
  font-weight: 700;
  letter-spacing: .04em;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  box-shadow: var(--glow-sm);
  transition: box-shadow .25s, transform .25s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  border: none;
  cursor: pointer;
}
.cipher-action-btn:hover { box-shadow: var(--glow); transform: translateY(-2px); }
.cipher-action-btn:disabled { opacity: .4; cursor: not-allowed; transform: none; box-shadow: none; }


    
    /* Status badge */
    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: .4rem;
      padding: .35rem .85rem;
      border-radius: var(--rnd);
      font-size: var(--fxs);
      font-weight: 700;
      opacity: 0;
      transition: opacity .3s;
      visibility: hidden;
      transition: opacity .3s, visibility .3s;
    }
    .status-badge.show { opacity: 1; visibility: visible; }
    .status-badge.ok  { background: rgba(34,197,94,.12); color: var(--success); border: 1px solid rgba(34,197,94,.25); }
    .status-badge.err { background: rgba(239,68,68,.12); color: var(--danger);  border: 1px solid rgba(239,68,68,.25); }

    .key-btn-group {
     display: flex;
     flex-wrap: wrap;
      gap: var(--s2);
      align-items: center;
    }

    #keyStatus {
    display: block;
    min-height: 0;
    }


    /* Char counter */
    .char-count { font-size: var(--fxs); color: var(--text2); text-align: right; }

    /* Info strip */
    .info-strip {
      display: flex;
      flex-wrap: wrap;
      gap: var(--s3);
      margin-top: var(--s2);
    }
    .info-chip {
      display: flex;
      align-items: center;
      gap: .45rem;
      padding: .45rem .9rem;
      border-radius: var(--rnd);
      background: rgba(99,102,241,.08);
      border: 1px solid rgba(99,102,241,.18);
      font-size: var(--fxs);
      font-weight: 600;
      color: var(--text2);
    }
    .info-chip span { color: var(--accent); }

  @media (max-width: 760px) {
  .cipher-grid { grid-template-columns: 1fr; }
}
@media (max-width: 880px) {
  .key-header {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }

  .key-header > div {
    flex-wrap: wrap;
    gap: var(--s2);
  }
}

@media (max-width: 515px) {
  .key-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .key-header > div {
    width: 100%;
    flex-direction: column;
  }

  .key-header .btn {
    width: 100%;
    justify-content: center;
  }
  }

  /* Pulsante Clear rosso */
.btn-danger {
  background: rgba(239,68,68,.10);
  color: var(--danger);
  border: 1px solid rgba(239,68,68,.25);
  transition: background .25s, transform .25s, box-shadow .25s;
}
.btn-danger:hover {
  background: rgba(239,68,68,.20);
  box-shadow: 0 0 0 4px rgba(239,68,68,.12);
  transform: translateY(-1px);
}

/* Animazione shake al click */
.btn-danger:active {
  animation: btn-shake .35s ease;
}

@keyframes btn-shake {
  0%   { transform: translateX(0); }
  20%  { transform: translateX(-4px) rotate(-1deg); }
  40%  { transform: translateX(4px) rotate(1deg); }
  60%  { transform: translateX(-3px); }
  80%  { transform: translateX(3px); }
  100% { transform: translateX(0); }
}