/* PIN Pad Styles */
.pin-pad-modal .modal-content {
    background: transparent;
    border: none;
    box-shadow: none;
}

.pin-pad-wrapper {
    background-color: white;
    border-radius: 20px;
    padding: 30px;
    max-width: 320px;
    width: 100%;
    margin: 0 auto;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    box-sizing: border-box;
}

.pin-pad-header {
    text-align: center;
    margin-bottom: 25px;
}

.pin-pad-header h4 {
    font-weight: 700;
    color: #333;
    margin-bottom: 10px;
}

.pin-pad-header p {
    color: #888;
    font-size: 0.9rem;
}

.pin-display {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 30px;
}

.pin-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid #ddd;
    transition: all 0.2s ease;
}

.pin-dot.filled {
    background-color: var(--bs-main, #0d6efd);
    border-color: var(--bs-main, #0d6efd);
    transform: scale(1.1);
}

.pin-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.btn-pin {
    height: 60px;
    width: 60px;
    border-radius: 50%;
    border: 1px solid #eee;
    background-color: #f8f9fa;
    font-size: 1.4rem;
    font-weight: 600;
    color: #333;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    outline: none;
    margin: 0 auto;
    touch-action: manipulation;
    user-select: none;
    -webkit-user-select: none;
}

.pin-pad-modal button {
    touch-action: manipulation;
    user-select: none;
    -webkit-user-select: none;
}

.btn-pin:hover {
    background-color: #e9ecef;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
}

.btn-pin:active {
    transform: translateY(0);
}

.btn-pin.btn-action {
    background-color: transparent;
    border: none;
    font-size: 0.8rem;
    text-transform: uppercase;
    color: #666;
}

.btn-pin.btn-action:hover {
    color: #333;
    background-color: rgba(0,0,0,0.05);
}

.btn-pin.btn-delete {
    color: #dc3545;
}

.pin-pad-footer {
    margin-top: 25px;
    text-align: center;
}

#pin-error {
    color: #dc3545;
    font-size: 0.85rem;
    margin-top: 10px;
    min-height: 20px;
    font-weight: 500;
}

/* Animations */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-8px); }
    50% { transform: translateX(8px); }
    75% { transform: translateX(-8px); }
}

.shake {
    animation: shake 0.4s ease-in-out;
}

/* Responsive for Mobile Devices */
@media (max-width: 576px) {
    .pin-pad-modal {
        padding-left: 0 !important;
        padding-right: 0 !important;
        overflow-x: hidden !important;
    }

    .pin-pad-modal.show {
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
    }

    .pin-pad-modal .modal-dialog {
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        margin: 0 auto !important;
        width: 100% !important;
        max-width: 320px !important;
        min-height: auto !important;
        height: auto !important;
        padding: 0 15px !important;
        box-sizing: border-box !important;
    }

    .pin-pad-modal .modal-content {
        background: transparent !important;
        border: none !important;
        box-shadow: none !important;
        width: 100% !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
    }

    .pin-pad-wrapper {
        width: 100% !important;
        max-width: 290px !important;
        padding: 20px 15px 15px 15px !important; /* Balanced padding */
        border-radius: 16px !important;
        box-sizing: border-box !important;
        margin: 0 auto !important;
    }

    .pin-pad-header {
        margin-bottom: 15px !important;
    }

    .pin-pad-header h4 {
        font-size: 1.2rem !important;
        margin-bottom: 5px !important;
    }

    .pin-pad-header p {
        font-size: 0.8rem !important;
    }

    .pin-display {
        gap: 8px !important;
        margin-bottom: 20px !important;
    }

    .pin-dot {
        width: 12px !important;
        height: 12px !important;
    }

    .pin-grid {
        gap: 10px !important;
        max-width: 230px !important;
        margin: 0 auto !important;
    }

    .btn-pin {
        height: 50px !important;
        width: 50px !important;
        font-size: 1.2rem !important;
        border-radius: 50% !important;
    }

    .btn-pin.btn-action {
        font-size: 0.75rem !important;
    }

    #pin-error {
        margin-top: 8px !important;
        font-size: 0.8rem !important;
        min-height: 16px !important;
    }

    .pin-pad-footer {
        margin-top: 15px !important;
    }
}

/* Adjustments for ultra-small screens (e.g. iPhone SE, width <= 320px) */
@media (max-width: 320px) {
    .pin-pad-wrapper {
        max-width: 260px !important;
        padding: 15px 10px 10px 10px !important;
    }

    .btn-pin {
        height: 44px !important;
        width: 44px !important;
        font-size: 1.1rem !important;
    }

    .pin-grid {
        gap: 8px !important;
    }
}