.card-animate {
    transition: all 0.4s ease;
    transform: translateY(10px);
    opacity: 0;
  }
  .card-animate.show {
    transform: translateY(0);
    opacity: 1;
  }
  .glass-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .glass-hover:hover {
    transform: scale(1.02);
    box-shadow: 0 0 20px rgba(0,255,255,0.1);
  }
  .header-animate {
    transition: all 0.4s ease;
    transform: translateY(-10px);
    opacity: 0;
  }
  .header-animate.show {
    transform: translateY(0);
    opacity: 1;
  }
  
  /* Loader custom */
  .loader {
    border-left-color: transparent;
    border-right-color: transparent;
    border-bottom-color: transparent;
  }
  /* Effet Apple/iOS Slide */
  .modal-box {
    opacity: 0;
    transform: translateX(40px);
    transition: all 0.44s cubic-bezier(.45,.13,.48,.87);
    pointer-events: none;
    z-index: 10;
    will-change: transform, opacity;
    position: relative;
  }
  .modal.show .modal-box {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
    z-index: 20;
  }
  /* Animation de sortie slide-out (retour arrière) */
  .modal.slide-out .modal-box {
    opacity: 0;
    transform: translateX(100px);
    transition: all 0.36s cubic-bezier(.45,.13,.48,.87);
    pointer-events: none;
    z-index: 10;
  }
  /* Input montant avec € */
  input[type="number"]::-webkit-inner-spin-button, 
  input[type="number"]::-webkit-outer-spin-button { 
    -webkit-appearance: none; 
    margin: 0; 
  }
  input[type="number"] {
    appearance: textfield;
  }
  
  /* Slider iOS */
  .ios-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    background: linear-gradient(90deg,#19c7ff 0%,#8e76ff 100%);
    border-radius: 12px;
    outline: none;
    box-shadow: 0 2px 16px 0 #19c7ff66;
    transition: background 0.3s;
  }
  .ios-slider:disabled {
    opacity: 0.3;
    background: #555 !important;
    box-shadow: none;
  }
  .ios-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 34px;
    height: 34px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 3px 18px 0 #19c7ff80;
    border: 3px solid #19c7ff;
    cursor: pointer;
    transition: background 0.2s, border 0.2s;
  }
  .ios-slider:disabled::-webkit-slider-thumb {
    background: #888;
    border-color: #aaa;
    cursor: not-allowed;
  }
  .ios-slider::-moz-range-thumb {
    width: 34px;
    height: 34px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 3px 18px 0 #19c7ff80;
    border: 3px solid #19c7ff;
    cursor: pointer;
  }
  .ios-slider::-ms-thumb {
    width: 34px;
    height: 34px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 3px 18px 0 #19c7ff80;
    border: 3px solid #19c7ff;
    cursor: pointer;
  }
  .slider-bullet {
    position: absolute;
    top: -38px;
    left: 0;
    width: 40px;
    height: 30px;
    background: rgba(30,40,65,0.98);
    color: #fff;
    border-radius: 14px;
    box-shadow: 0 4px 16px 0 #19c7ff44;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1rem;
    pointer-events: none;
    transition: left 0.35s cubic-bezier(.44,.13,.48,.87);
    z-index: 10;
  }
  /* Slider iOS minimal et glassmorphism */
  .ios-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 8px;
    background: linear-gradient(90deg,rgba(25,199,255,0.3) 0%,rgba(142,118,255,0.3) 100%);
    border-radius: 20px;
    outline: none;
    box-shadow: 0 3px 30px 0 #19c7ff24;
    position: relative;
    transition: background 0.3s;
    backdrop-filter: blur(6px);
  }
  .ios-slider:disabled {
    opacity: 0.4;
    background: #555 !important;
    box-shadow: none;
  }
  .ios-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 1px 10px 0 #19c7ff50;
    border: 2px solid #19c7ff;
    cursor: pointer;
    transition: background 0.2s, border 0.2s;
  }
  .ios-slider:disabled::-webkit-slider-thumb {
    background: #aaa;
    border-color: #bbb;
    cursor: not-allowed;
  }
  .ios-slider::-moz-range-thumb,
  .ios-slider::-ms-thumb {
    width: 24px;
    height: 24px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 1px 10px 0 #19c7ff50;
    border: 2px solid #19c7ff;
    cursor: pointer;
  }
  .ios-slider:disabled::-moz-range-thumb,
  .ios-slider:disabled::-ms-thumb {
    background: #aaa;
    border-color: #bbb;
    cursor: not-allowed;
  }
  .ios-slider::-ms-fill-lower,
  .ios-slider::-webkit-slider-runnable-track,
  .ios-slider::-moz-range-track {
    background: transparent;
  }
  
  #cryptoDropdown {
    min-width: 210px;
    max-height: 250px;
    overflow-y: auto;
    animation: fadeInDropdown 0.23s cubic-bezier(.44,1.36,.52,1);
  }
  @keyframes fadeInDropdown {
    from { opacity: 0; transform: translateY(16px) scale(0.98);}
    to { opacity: 1; transform: translateY(0) scale(1);}
  }
  
  #cryptoDropdown {
    z-index: 99999 !important;
  }
  .card-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 1.1rem;
    position: relative;
    box-shadow: 0 4px 16px rgba(0,0,0,0.3);
    background-color: #374151;
  }
  
  .card-preview img {
    pointer-events: none;
  }
  #cardBack .font-mono {
    letter-spacing: 2px;
  }
  .ios-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 10px;
    background: linear-gradient(90deg, #19c7ff 0%, #8e76ff 100%);
    border-radius: 20px;
    box-shadow: 0 3px 30px 0 #19c7ff24;
    transition: background 0.3s;
    margin-top: 12px;
    margin-bottom: 24px;
  }
  .ios-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 32px;
    height: 32px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 1px 10px 0 #19c7ff50;
    border: 3px solid #19c7ff;
    cursor: pointer;
    transition: background 0.2s, border 0.2s;
    touch-action: pan-x;
  }
  .ios-slider:active::-webkit-slider-thumb {
    border-color: #8e76ff;
  }
  .ios-slider:disabled::-webkit-slider-thumb {
    background: #ccc;
    border-color: #aaa;
  }