.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(5px);
}

.modal.visible {
    display: flex;
    opacity: 1;
}

.modal-content {
    background-color: #fff;
    padding: 2.5rem;
    border-radius: 16px;
    max-width: 500px;
    width: 90%;
    position: relative;
    transform: scale(0.95);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.modal.visible .modal-content {
    transform: scale(1);
    opacity: 1;
}

.close-modal {
    position: absolute;
    right: 16px;
    top: 16px;
    width: 24px;
    height: 24px;
    border: none;
    background: none;
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.6;
    transition: opacity 0.2s ease;
}

.close-modal::before {
    content: '×';
    font-size: 24px;
    line-height: 1;
    color: #666;
}

.close-modal:hover {
    opacity: 1;
}

.close-modal::after {
    display: none;
}

.modal-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.modal-header h3 {
    color: var(--primary);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.modal-header p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.qr-code {
    text-align: center;
    margin: 1.5rem 0;
    position: relative;
    padding: 1rem;
}

.qr-code::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 5px;
    background: #f5f5f5;
    border-radius: 10px;
}

.qr-code img {
    max-width: 200px;
    border-radius: 12px;
    padding: 10px;
    background: white;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.qr-code img:hover {
    transform: scale(1.02);
}

.pix-code {
    display: flex;
    gap: 0.75rem;
    margin: 1.5rem 0;
    position: relative;
}

.pix-code input {
    flex: 1;
    padding: 1rem;
    border: 2px solid #eee;
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--text);
    background: #f8f9fa;
    transition: all 0.2s ease;
}

.pix-code input:focus {
    border-color: var(--primary);
    background: white;
    outline: none;
    box-shadow: 0 0 0 3px rgba(19, 81, 180, 0.1);
}

#btn-copiar {
    padding: 0 1.5rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 120px;
    position: relative;
    overflow: hidden;
}

#btn-copiar:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

#btn-copiar:active {
    transform: translateY(0);
}

/* Loading State */
.modal.loading .modal-content {
    position: relative;
}

.modal.loading .modal-content::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 16px;
    z-index: 1;
}

.loading-spinner {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
}

.modal.loading .loading-spinner {
    display: block;
}

/* Animação do spinner */
.loading-spinner::after {
    content: '';
    width: 50px;
    height: 50px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: block;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsividade */
@media (max-width: 480px) {
    .modal-content {
        padding: 2rem 1.5rem;
    }

    .pix-code {
        flex-direction: column;
    }

    #btn-copiar {
        width: 100%;
        padding: 1rem;
    }

    .qr-code img {
        max-width: 180px;
    }

    .close-modal {
        right: 12px;
        top: 12px;
    }
}